阅读说明：本技术 一种煤炭翻堆系统及其控制方法、装置、计算机设备 (Coal pile turning system, control method and device thereof, and computer equipment ) 是由 姜来福 穆霄刚 宋桂江 张延军 韩士红 单宝峰 吴跃飞 李景玺 张淼 李占军 马 于 2021-06-10 设计创作，主要内容包括：本申请涉及一种煤炭翻堆系统及其控制方法、装置、计算机设备和存储介质。煤炭翻堆系统包括第一转接线、第二转接线、第一翻车机和第二翻车机。控制方法包括：若接收到跨区供煤指令,则控制第一转接线的皮带机及中间皮带机以逆煤流方式启动；跨区供煤指令用于指示第一翻车机向第二储煤场供煤；若第一转接线的皮带机和中间皮带机启动完成,则控制第一翻车机供煤,以在第一转接线的皮带机和中间皮带机上形成煤流；在第一翻车机供煤后,控制第二转接线上的皮带机以及与第二储煤场终接的皮带机以逆煤流方式启动,以使煤流经第二转接线到达第二储煤场。该控制方法能大大降低了煤炭翻堆系统的空载时间,节约了能耗。(The application relates to a coal pile turning system, a control method and device thereof, computer equipment and a storage medium. The coal pile-turning system comprises a first transfer line, a second transfer line, a first car dumper and a second car dumper. The control method comprises the following steps: if a cross-region coal supply instruction is received, controlling the belt conveyor of the first transfer line and the intermediate belt conveyor to start in a reverse coal flow mode; the cross-region coal supply instruction is used for indicating the first tippler to supply coal to the second coal storage yard; if the belt conveyor and the intermediate belt conveyor of the first transfer line are started, controlling the first tipper to supply coal so as to form coal flow on the belt conveyor and the intermediate belt conveyor of the first transfer line; and after the first tippler supplies coal, controlling the belt conveyor on the second transfer line and the belt conveyor terminated with the second coal storage yard to start in a reverse coal flow mode so that the coal flows through the second transfer line to reach the second coal storage yard. The control method can greatly reduce the dead time of the coal pile turning system and save energy consumption.)

1. The control method of the coal pile-turning system is characterized by comprising a first transfer line, a second transfer line, a first car dumper and a second car dumper, wherein the first transfer line is used for transferring coal provided by the first car dumper to a first coal storage yard, the second transfer line is used for transferring coal provided by the second car dumper to a second coal storage yard, and the second transfer line is mechanically connected with the first transfer line through an intermediate belt conveyor, and the control method comprises the following steps:

if a cross-region coal supply instruction is received, controlling the belt conveyor of the first transfer line and the intermediate belt conveyor to start in a reverse coal flow mode; the cross-region coal supply instruction is used for indicating the first tippler to supply coal to the second coal storage yard;

if the belt conveyor of the first transfer line and the intermediate belt conveyor are started, controlling the first tipper to supply coal so as to form coal flows on the belt conveyor of the first transfer line and the intermediate belt conveyor;

and after the first tippler supplies coal, controlling the belt conveyor on the second transfer line and the belt conveyor terminating with the second coal storage yard to start in the reverse coal flow mode, so that the coal flows through the second transfer line to reach the second coal storage yard.

2. The control method according to claim 1, wherein the step of controlling the belt conveyor on the second transfer line and the belt conveyor terminating in the second coal storage yard to start in the reverse coal flow manner after the first tippler supplies coal so that the coal flows through the second transfer line to the second coal storage yard comprises:

after the first tippler supplies coal, if the time of the effective operation of the first transfer line reaches safe time, controlling the belt conveyor on the second transfer line and the belt conveyor terminated with the second coal storage yard to be started in the reverse coal flow mode, so that the coal flows through the second transfer line to reach the second coal storage yard.

3. The control method according to claim 2, characterized by comprising:

acquiring the flow of the coal flow on the first transfer line;

and if the flow of the coal flow on the first transfer line is larger than the preset flow, judging that the first transfer line is effectively operated.

4. A coal pile-turning system is characterized by comprising:

a first car dumper;

a second tippler;

the first transfer line is used for transferring coal provided by the first tippler to a first coal storage yard;

the second transfer line is mechanically connected with the first transfer line through an intermediate belt conveyor and used for transferring coal provided by the second tippler to a second coal storage yard;

the control module is electrically connected with the first tippler, the second tippler, the first transfer line and the second transfer line and is used for controlling the belt conveyor of the first transfer line and the middle belt conveyor to be started in a reverse coal flow mode if a cross-region coal supply instruction is received; the cross-region coal supply instruction is used for indicating the first tippler to supply coal to the second coal storage yard; if the belt conveyor of the first transfer line and the intermediate belt conveyor are started, controlling the first tipper to supply coal so as to form coal flows on the belt conveyor of the first transfer line and the intermediate belt conveyor; and after the first tippler supplies coal, controlling the belt conveyor on the second transfer line and the belt conveyor terminating with the second coal storage yard to start in the reverse coal flow mode, so that the coal flow from the first transfer line can reach the second coal storage yard through the second transfer line.

5. The coal pile-turning system of claim 4, characterized in that the control module comprises a first controller and a second controller;

the first controller is used for controlling the first tippler and the belt conveyor of the first transfer line if receiving a first local coal supply instruction, so that the first tippler supplies coal to the first coal storage yard through the first transfer line; the second controller is used for controlling the second tippler and the belt conveyor of the second transfer line if receiving a second local coal supply instruction, so that the second tippler supplies coal to the second coal storage yard through the second transfer line;

the second controller is further configured to transfer the control right of the belt conveyor of the second patch cord, the second tipper and the belt conveyor terminating the second coal storage yard to the first controller if the cross-region coal supply instruction is received;

the first controller is further used for controlling the belt conveyor of the first transfer line and the intermediate belt conveyor to start in a reverse coal flow mode if the cross-region coal supply instruction and the control right are received; if the belt conveyor of the first transfer line is started, controlling the first tipper to supply coal so as to form coal flows on the belt conveyor of the first transfer line and the intermediate belt conveyor; and after the first tippler supplies coal, controlling the belt conveyor on the second transfer line and the belt conveyor terminating with the second coal storage yard to start in the reverse coal flow mode, so that the coal flows through the second transfer line to reach the second coal storage yard.

6. The coal pile-turning system according to claim 5, wherein the first controller is further configured to control the belt conveyor on the second transfer line and the belt conveyor terminating in the second coal storage yard to start in the reverse coal flow manner to enable the coal to flow through the second transfer line to the second coal storage yard if the time for the first transfer line to work effectively reaches a safe time after the first car dumper is supplied with coal.

7. The coal pile turning system of claim 6, further comprising a belt scale for detecting a flow rate of the coal flow on the first transfer line; the first controller is further used for acquiring the flow rate of the coal flow on the first transfer line fed back by the belt scale; and if the flow of the coal flow on the first transfer line is larger than the preset flow, judging that the first transfer line is effectively operated.

8. The coal pile-turning system according to claim 5, further comprising a movable material guiding mechanism, wherein the movable material guiding mechanism is arranged on the intermediate belt conveyor, the movable material guiding mechanism is used for preventing coal flow at the intermediate belt conveyor from overflowing, and a limit switch of the movable material guiding mechanism is used for outputting a detection signal when the second controller transfers the control right to the first controller; and the first controller is also used for controlling the belt conveyor of the first transfer line and the intermediate belt conveyor to start in a reverse coal flow mode when receiving the cross-region coal supply instruction, the control right and the detection signal.

9. The utility model provides a controlling means of coal pile turning system, a serial communication port, coal pile turning system includes first switching line, second switching line, first tipper and second tipper, first switching line be used for with the coal that first tipper provided is forwarded and is sent first coal storage yard, the second switching line is used for forwarding the coal that the second tipper provided and sends second coal storage yard to, the second switching line with first switching line is through middle belt feeder mechanical connection, controlling means includes:

the first control module is used for controlling the belt conveyor of the first transfer line and the intermediate belt conveyor to start in a reverse coal flow mode if a cross-region coal supply instruction is received; the cross-region coal supply instruction is used for indicating the first tippler to supply coal to the second coal storage yard;

the first tipper control module is used for controlling the first tipper to supply coal if the belt conveyor of the first transfer line and the intermediate belt conveyor are started, so that coal flows are formed on the belt conveyor of the first transfer line and the intermediate belt conveyor;

and the second control module is used for controlling the belt conveyor on the second transfer line and the belt conveyor terminated with the second coal storage yard to be started in a reverse coal flow mode after the first tippler supplies coal, so that the coal flows through the second transfer line to reach the second coal storage yard.

10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 3.

Technical Field

The application relates to the technical field of coal pile turning, in particular to a coal pile turning system, a control method and a control device thereof, computer equipment and a storage medium.

Background

Railroads are burdened with heavy transportation tasks, with freight transportation being particularly heavy. While bulk goods account for a greater proportion in the transport of goods. At present, bulk cargos on a train are often unloaded by a pile-turning system and transported to a coal storage yard for storage.

However, the pile-turning system in the conventional technology has the problems of long dead time and large energy consumption.

Disclosure of Invention

In view of the above, it is necessary to provide a coal pile-turning system with low energy consumption, a control method and device thereof, a computer device and a storage medium.

In one aspect, an embodiment of the present invention provides a control method for a coal pile-turning system, where the coal pile-turning system includes a first transfer line, a second transfer line, a first car dumper and a second car dumper, the first transfer line is used to transfer coal provided by the first car dumper to a first coal storage yard, the second transfer line is used to transfer coal provided by the second car dumper to a second coal storage yard, and the second transfer line is mechanically connected to the first transfer line through an intermediate belt conveyor, and the control method includes: if a cross-region coal supply instruction is received, controlling the belt conveyor of the first transfer line and the intermediate belt conveyor to start in a reverse coal flow mode; the cross-region coal supply instruction is used for indicating the first tippler to supply coal to the second coal storage yard; if the belt conveyor and the intermediate belt conveyor of the first transfer line are started, controlling the first tipper to supply coal so as to form coal flow on the belt conveyor and the intermediate belt conveyor of the first transfer line; and after the first tippler supplies coal, controlling the belt conveyor on the second transfer line and the belt conveyor terminated with the second coal storage yard to start in a reverse coal flow mode so that the coal flows through the second transfer line to reach the second coal storage yard.

In one embodiment, after the first tippler supplies coal, the step of controlling the belt conveyor on the second transfer line and the belt conveyor terminating at the second coal storage yard to start in a reverse coal flow mode so that the coal flows through the second transfer line to the second coal storage yard comprises the following steps: after the first tippler supplies coal, if the effective operation time of the first transfer line reaches the safe time, the belt conveyor on the second transfer line and the belt conveyor terminated with the second coal storage yard are controlled to be started in a reverse coal flow mode, so that the coal flows through the second transfer line to reach the second coal storage yard.

In one embodiment, the control method comprises the following steps: acquiring the flow of the coal flow on the first transfer line; and if the flow of the coal flow on the first transfer line is larger than the preset flow, judging that the first transfer line is effectively operated.

On the other hand, the embodiment of the invention also provides a coal pile turning system, which comprises: a first car dumper; a second tippler; the first transfer line is used for transferring coal provided by the first tippler to a first coal storage yard; the second transfer line is mechanically connected with the first transfer line through an intermediate belt conveyor and used for transferring coal provided by the second tippler to a second coal storage yard; the control module is electrically connected with the first tippler, the second tippler, the first transfer line and the second transfer line and is used for controlling the belt conveyor of the first transfer line and the middle belt conveyor to be started in a reverse coal flow mode if a cross-region coal supply instruction is received; the cross-region coal supply instruction is used for indicating the first tippler to supply coal to the second coal storage yard; if the belt conveyor and the intermediate belt conveyor of the first transfer line are started, controlling the first tipper to supply coal so as to form coal flow on the belt conveyor and the intermediate belt conveyor of the first transfer line; after the first tippler supplies coal, the belt conveyor on the second transfer line and the belt conveyor terminating with the second coal storage yard are controlled to start in a reverse coal flow mode, so that the coal flow from the first transfer line can reach the second coal storage yard through the second transfer line.

In one embodiment, the control module comprises a first controller and a second controller; the first controller is used for controlling the first tippler and the belt conveyor of the first transfer line if receiving a coal supply instruction of the first local area, so that the first tippler supplies coal to the first coal storage yard through the first transfer line; the second controller is used for controlling the second tippler and the belt conveyor of the second transfer line if receiving a coal supply instruction of the second local area, so that the second tippler supplies coal to the second coal storage yard through the second transfer line; the second controller is also used for handing over the control right of the belt conveyor of the second transfer line, the second tipper and the belt conveyor terminating the second coal storage yard to the first controller if receiving a cross-region coal supply instruction; the first controller is also used for controlling the belt conveyor of the first transfer line and the intermediate belt conveyor to start in a reverse coal flow mode if receiving a cross-region coal supply instruction and a control right; if the belt conveyor of the first transfer line is started, controlling the first tipper to supply coal so as to form coal flow on the belt conveyor of the first transfer line and the intermediate belt conveyor; and after the first tippler supplies coal, the belt conveyor on the second transfer line and the belt conveyor terminated with the second coal storage yard are controlled to be started in a reverse coal flow mode, so that the coal flows through the second transfer line to reach the second coal storage yard.

In one embodiment, the first controller is further configured to control the belt conveyor on the second transfer line and the belt conveyor terminating in the second coal storage yard to start in a reverse coal flow manner to enable coal to flow through the second transfer line to the second coal storage yard if the time for the first transfer line to work effectively reaches a safe time after the first tippler supplies coal.

In one embodiment, the coal pile turning system further comprises a belt scale for detecting the flow rate of the coal flow on the first transfer line; the first controller is also used for acquiring the flow of the coal flow on the first transfer line fed back by the belt scale; and if the flow of the coal flow on the first transfer line is larger than the preset flow, judging that the first transfer line is effectively operated.

In one embodiment, the coal pile turning system further comprises a movable material guiding mechanism, the movable material guiding mechanism is arranged on the intermediate belt conveyor and is used for preventing coal flow at the intermediate belt conveyor from overflowing, and a limit switch of the movable material guiding mechanism is used for outputting a detection signal when the second controller transfers the control right to the first controller; the first controller is also used for controlling the belt conveyor of the first transfer line and the intermediate belt conveyor to start in a reverse coal flow mode when receiving the cross-region coal supply instruction, the control right and the detection signal.

In another aspect, an embodiment of the present invention further provides a control device for a coal pile-turning system, where the coal pile-turning system includes a first transfer line, a second transfer line, a first car dumper and a second car dumper, the first transfer line is configured to transfer coal provided by the first car dumper to a first coal storage yard, the second transfer line is configured to transfer coal provided by the second car dumper to a second coal storage yard, and the second transfer line is mechanically connected to the first transfer line through an intermediate belt conveyor, and the control device includes: the first control module is used for controlling the belt conveyor of the first transfer line and the intermediate belt conveyor to start in a reverse coal flow mode if a cross-region coal supply instruction is received; the cross-region coal supply instruction is used for indicating the first tippler to supply coal to the second coal storage yard; the first tipper control module is used for controlling the first tipper to supply coal if the belt conveyor of the first transfer line and the intermediate belt conveyor are started, so that coal flows are formed on the belt conveyor of the first transfer line and the intermediate belt conveyor; and the second control module is used for controlling the belt conveyor on the second transfer line and the belt conveyor terminated with the second coal storage yard to start in a reverse coal flow mode after the first tipper supplies coal so as to enable the coal to flow through the second transfer line to reach the second coal storage yard.

In still another aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in any of the above-mentioned embodiments of the control method for a coal pile-turning system.

Based on any embodiment, the belt conveyor on the first transfer line and the intermediate belt conveyor are controlled to start in a reverse coal flow mode, after the first tipper starts to supply coal, the belt conveyor on the second transfer line and the belt conveyor terminating with the second coal storage yard are controlled to start in a reverse coal flow mode, compared with the traditional mode that all the belt conveyors of the whole coal conveying line are directly controlled to start in a reverse coal flow mode, the belt conveyors terminating with the second coal storage yard, the belt conveyor on the second transfer line, the intermediate belt conveyor and the belt conveyor of the first transfer line are sequentially controlled to start, and the dead time of the belt conveyors on the second transfer line and the belt conveyor terminating with the second coal storage yard is reduced. On the whole, the belt conveyors in two different stages are regarded as two flow blocks, and the coal flow flows from the upstream flow block to the downstream flow block and is in the direction along the coal flow. Inside each flow block, in order to ensure the stability of coal conveying, the coal conveying device is started in a reverse coal flow mode. The advantages of the coal-flow-following mode and the coal-flow-reversing mode are combined, on the premise of ensuring the stability of cross-region coal supply, the dead time of the coal pile turning system is greatly reduced, and the energy consumption is saved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a coal pile-turning system in one embodiment;

FIG. 2 is a schematic flow chart of a control method of a coal pile-turning system in one embodiment;

FIG. 3 is a schematic flow chart of a control method of a coal pile-turning system in another embodiment;

FIG. 4 is a block diagram of a coal pile-turning system in one embodiment;

FIG. 5 is a block diagram showing a control device of the coal pile-turning system in one embodiment.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another.

Spatial relational terms, such as "under," "below," "under," "over," and the like may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary terms "under" and "under" can encompass both an orientation of above and below. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments is understood to mean "electrical connection", "communication connection", or the like, if there is a transfer of electrical signals or data between the connected objects.

As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

As background art, the pile turning system in the prior art has the problems of long idle time and large energy consumption, and the inventor researches and discovers that the problems are caused because the pile turning system usually starts each belt conveyor on a coal conveying line in a reverse coal flow mode in order to ensure that the phenomena of coal blockage and coal accumulation do not occur in the whole coal conveying process, wherein the reverse coal flow mode refers to that the belt conveyor close to a coal storage yard is started preferentially, and the belt conveyors on the whole coal conveying line are started sequentially from the belt conveyors on the downstream of the coal flow against the direction of the coal flow after the speed of the belt conveyor meets the requirement. However, the method can lead the downstream belt conveyor to be started when the tipper does not start to supply coal, and the downstream belt conveyor is in an idle state, and the longer the whole coal conveying line is, the longer the idle time of the belt conveyor in the pile turning system is, so that the energy consumption of the pile turning system is higher.

For the above reasons, the present invention provides a method for controlling a coal pile-turning system, which can be applied to the coal pile-turning system shown in fig. 1, where the coal pile-turning system includes a first transfer line, a second transfer line, a first car dumper and a second car dumper. The first transfer line is used for transferring coal provided by the first tippler to a first coal storage yard, the first coal storage yard is provided with a belt conveyor terminating with the first coal storage yard and corresponding unloading equipment, the coal transferred by the first transfer line is conveyed to the corresponding unloading equipment through the belt conveyor terminating with the first coal storage yard, and the coal is unloaded by the corresponding unloading equipment and stored in the first coal storage yard. The second transfer line is used for transferring coal provided by the second tippler to a second coal storage yard, the second coal storage yard is provided with a belt conveyor terminating with the second coal storage yard and corresponding unloading equipment, the belt conveyor terminating with the second coal storage yard conveys the coal transferred by the second transfer line to the corresponding unloading equipment, and the corresponding unloading equipment unloads the coal and stores the coal in the second coal storage yard. In some embodiments, the first coal storage yard and/or the second coal storage yard may be a coal yard or a coal silo. When the first coal storage yard and/or the second coal storage yard is/are a coal storage yard, the corresponding discharging equipment is a stocker, and the stocker stacks coal conveyed by the terminating belt conveyor in the coal storage yard. When the first coal storage yard and/or the second coal storage yard is/are coal storage silos, the corresponding unloading equipment is an unloading trolley, the unloading trolley unloads the coal conveyed by the terminating belt conveyor through an unloading opening of the coal storage silos, and the coal falls into the coal storage silos for storage. The second patch cord passes through middle belt feeder mechanical connection with first patch cord. The control method of the coal pile turning system is shown in fig. 2 and comprises steps S100 to S500.

And S100, if a cross-region coal supply instruction is received, controlling the belt conveyor of the first transfer line and the intermediate belt conveyor to start in a reverse coal flow mode.

And the cross-region coal supply instruction is used for indicating the first tippler to supply coal to the second coal storage yard. The inventor researches and discovers that a plurality of coal pile turning systems comprise a multi-stage process at present. The coal conveying capacity of the tippler in some tipplers is not matched with the storage capacity of the coal storage yard corresponding to the tippler, so that the tippler cannot convey coal with the maximum coal conveying capacity, and the tipplers can be connected with different-phase tipplers through the middle belt conveyor, so that the tipplers can supply coal to the coal storage yards with different-phase tipplers. The cross-region coal supply instruction is an instruction used for instructing the first tippler to supply coal to the second coal storage yard in different periods.

The first transfer line can comprise one or more belt conveyors. The intermediate belt conveyor is closer to the second coal storage yard than the belt conveyor on the first transfer line, so that the control of the belt conveyor of the first transfer line and the starting of the intermediate belt conveyor in a reverse coal flow mode means that the intermediate belt conveyor is started preferentially, and then the belt conveyor on the first transfer line is started gradually in a reverse coal flow direction. At the moment, the intermediate belt conveyor and the belt conveyor on the first transfer line are started in a reverse coal flow mode, so that the phenomena of coal blockage and coal accumulation on the intermediate belt conveyor and the belt conveyor on the first transfer line are avoided after the first tipper starts to supply coal.

And S300, if the belt conveyor of the first transfer line and the middle belt conveyor are started, controlling the first tipper to supply coal so as to form coal flow between the belt conveyor of the first transfer line and the middle belt conveyor.

It can be understood that the completion of the starting of the belt conveyor of the first transfer line and the intermediate belt conveyor means that the belt conveyor of the first transfer line and the intermediate belt conveyor are started in a reverse coal flow sequence and the running speed reaches the running required speed. The operation requirements of different coal pile turning systems can be different, and the operation requirements can be set according to actual conditions. After the belt conveyor of the first transfer line and the intermediate belt conveyor are started, the condition that stable coal flow is formed between the belt conveyor of the first transfer line and the intermediate belt conveyor is achieved, and the first tippler can be controlled to start coal supply. Specifically, the first tippler is also provided with feeding equipment and a feeding belt conveyor which is connected with the feeding equipment, the control of the first tippler to start coal supply comprises the control of the starting of the feeding belt conveyor, after the starting of the feeding belt conveyor is completed, the first tippler is controlled to dump and supply coal to the feeding equipment, and then the feeding equipment is controlled to start feeding to the feeding belt conveyor. The feeding belt conveyor conveys coal to the belt conveyor of the first transfer line, the belt conveyor of the first transfer line conveys the coal to the middle belt conveyor, and the coal flows under the driving of the belt conveyors to form coal flows.

And S500, after the first tippler supplies coal, controlling the belt conveyor on the second transfer line and the belt conveyor terminated with the second coal storage yard to start in a reverse coal flow mode, so that the coal flows through the second transfer line to reach the second coal storage yard.

The second patch cord may include one or more belt conveyors. The belt conveyor on the second transfer line and the belt conveyor terminated at the second coal storage yard are closer to the second coal storage yard than the belt conveyor on the second transfer line, and the control of the starting of the belt conveyor on the second transfer line and the belt conveyor terminated at the second coal storage yard in a reverse coal flow mode means that the belt conveyor terminated at the second coal storage yard is started preferentially, and then the belt conveyor on the second transfer line is started gradually in a reverse coal flow direction. Specifically, after the first tipper supplies coal, the belt conveyor on the second transfer line and the belt conveyor terminating with the second coal storage yard can be controlled to start immediately, and in order to further reduce dead time, the belt conveyor on the second transfer line and the belt conveyor terminating with the second coal storage yard can be controlled to start after a period of time after the first tipper supplies coal, and only the belt conveyors on the second transfer line and the belt conveyor terminating with the second coal storage yard before the coal flow reaches the belt conveyor on the second transfer line from the middle belt conveyor are required to be started. Based on the above, the coal flow finally reaches the terminating belt conveyor of the second coal storage yard through the belt conveyor on the second transfer line, the terminating belt conveyor of the second coal storage yard conveys the coal to the corresponding discharging equipment, and the corresponding discharging equipment stores the coal in the second coal storage yard.

Based on the control method in the embodiment of the application, the belt conveyor on the first transfer line and the intermediate belt conveyor are controlled to start in a reverse coal flow mode, and after the first tippler starts to supply coal, the belt conveyor on the second transfer line and the belt conveyor terminating with the second coal storage yard are controlled to start in a reverse coal flow mode. On the whole, the belt conveyors in two different stages are regarded as two flow blocks, and the coal flow flows from the upstream flow block to the downstream flow block and is in the direction along the coal flow. Inside each flow block, in order to ensure the stability of coal conveying, the coal conveying device is started in a reverse coal flow mode. The advantages of the coal-flow-following mode and the coal-flow-reversing mode are combined, on the premise of ensuring the stability of cross-region coal supply, the dead time of the coal pile turning system is greatly reduced, and the energy consumption is saved.

In one embodiment, as shown in FIG. 3, step S500 includes step S510.

And S510, after the first tippler supplies coal, if the effective operation time of the first transfer line reaches safe time, controlling the belt conveyor on the second transfer line and the belt conveyor terminated with the second coal storage yard to start in a reverse coal flow mode so that the coal flows through the second transfer line to reach the second coal storage yard.

Specifically, the first transfer line efficient operation means that the first transfer line performs a coal transporting operation at an efficient coal transporting speed. The effective coal conveying speed can be set according to actual needs. The safe time refers to the time when the belt conveyor on the second transfer line and the belt conveyor terminating with the second coal storage yard are started, and the coal flow can be safely transited to the belt conveyor on the second transfer line from the intermediate belt conveyor without coal piling and coal accumulation problems. In order to achieve a better energy-saving effect, the belt conveyor on the second transfer line and the belt conveyor terminating with the second coal storage yard are controlled to be started in a reverse coal flow mode only when the effective operation time of the first transfer line reaches the safe time, so that the dead time of the belt conveyor on the second transfer line and the belt conveyor terminating with the second coal storage yard is reduced to the maximum extent.

In one embodiment, it is determined whether the first transfer line is working effectively by:

step 1, obtaining the flow of the coal flow on a first transfer line.

And 2, if the flow of the coal flow on the first transfer line is larger than the preset flow, judging that the first transfer line is effectively operated.

The coal conveying speed of the first transfer line can be judged according to the flow of the coal flow, and when the flow of the coal flow on the first transfer line is larger than the preset flow, the belt conveyor on the first transfer line also reaches the effective coal conveying speed, so that the effective operation of the first transfer line can be judged. In one embodiment, to avoid the misjudgment caused by the flow rate of the coal flow, step 2 may be further defined as: and if the flow of the coal flow on the first transfer line is larger than the preset flow and the duration time that the flow of the coal flow on the first transfer line is larger than the preset flow is larger than the preset time, judging that the first transfer line is effectively operated.

In one embodiment, let the scram time of the intermediate belt conveyor be T_m(i.e., the time from the effective coal conveying speed to the completion of the emergency stop), the total starting time of the belt conveyor of the second transfer line and the belt conveyor terminating the second coal storage yard is T₂，T_mAnd T₂The test can be carried out when the coal pile turning system does not work. A transfer funnel is connected between the middle belt conveyor and the belt conveyor of the second transfer line, the volume of the transfer funnel is Vol, the coal supply capacity of the first tippler is set to Flow, the coal density is set to Den, and the length of the first transfer line is set to L₁And setting the effective coal conveying speed of the belt conveyor as v. In consideration of the most extreme case, that is, the belt conveyor of the second transfer line and the belt conveyor terminating the second coal storage yard are not successfully started, and an emergency stop of the intermediate belt conveyor needs to be triggered, the coal conveyed by the intermediate belt conveyor can be temporarily stored in the transfer hopper, but the coal cannot exceed the holding capacity of the transfer hopper. The safety time in the above steps can be calculated according to the following formula:

the total time of the coal flow passing through the first patch cord is as follows:

(II) maximum buffering time of the transfer funnel:

(III) satisfying the most extreme conditionsThe method comprises the following steps: t is₁+T_h＝T_safe+T₂+T_m。

From this, the safety time T can be deduced_safe。

It should be understood that although the steps in the flowcharts of fig. 2 and 3 are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in fig. 2 and 3 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternatively with other steps or at least a portion of the other steps or stages.

As shown in fig. 4 (the dotted lines represent electrical connections), the coal pile-turning system includes a first transfer line 100, a second transfer line 300, a first car dumper 110, a second car dumper 310, and a control module 500. The first transfer line 100 is used for transferring coal provided by the first tippler 110 to a first coal storage yard, the first coal storage yard is provided with a belt conveyor terminating with the first coal storage yard and corresponding discharging equipment, the coal transferred by the first transfer line 100 is conveyed to the corresponding discharging equipment through the belt conveyor terminating with the first coal storage yard, and the coal is stored in the first coal storage yard through the corresponding discharging equipment. The second transfer line 300 is mechanically connected with the first transfer line 100 through an intermediate belt conveyor 200, the second transfer line 300 is used for transferring coal provided by the second tippler 310 to a second coal storage yard, the second coal storage yard is provided with a belt conveyor terminating with the second coal storage yard and corresponding discharging equipment, the coal transferred by the second transfer line 300 is conveyed to the corresponding discharging equipment through the belt conveyor terminating with the second coal storage yard, and the coal is stored in the second coal storage yard through the corresponding discharging equipment. In some embodiments, the first coal storage yard and/or the second coal storage yard may be a coal yard or a coal silo. When the first coal storage yard and/or the second coal storage yard is/are a coal storage yard, the corresponding discharging equipment is a stocker, and the stocker stacks coal conveyed by the terminating belt conveyor in the coal storage yard. When the first coal storage yard and/or the second coal storage yard is/are coal storage silos, the corresponding unloading equipment is an unloading trolley, the unloading trolley unloads the coal conveyed by the terminating belt conveyor through an unloading opening of the coal storage silos, and the coal falls into the coal storage silos for storage.

The control module 500 is electrically connected to the first tippler 110, the second tippler 310, the first transfer line 100 and the second transfer line 300, and is configured to control the belt conveyor of the first transfer line 100 and the intermediate belt conveyor 200 to start in a reverse coal flow manner if a cross-region coal supply instruction is received; the cross-region coal supply instruction is used for indicating the first tippler 110 to supply coal to the second coal storage yard; if the belt conveyor of the first transfer line 100 and the intermediate belt conveyor 200 are started, controlling the first tipper 110 to supply coal so as to form coal flow on the belt conveyor of the first transfer line 100 and the intermediate belt conveyor 200; after the first tippler 110 supplies coal, the belt conveyor on the second transfer line 300 and the belt conveyor terminated with the second coal storage yard are controlled to start in a reverse coal flow mode, so that the coal flow from the first transfer line 100 can reach the second coal storage yard through the second transfer line 300. Reference is made to the above description for the functions performed by the control module 500.

Based on the coal pile-turning system in the embodiment of the application, the belt conveyor of the first transfer line and the intermediate belt conveyor 200 are controlled to be started in a reverse coal flow mode, and after the first car dumper starts to supply coal, the belt conveyor on the second transfer line and the belt conveyor terminating with the second coal storage yard are controlled to be started in a reverse coal flow mode. On the whole, the belt conveyors in two different stages are regarded as two flow blocks, and the coal flow flows from the upstream flow block to the downstream flow block and is in the direction along the coal flow. Inside each flow block, in order to ensure the stability of coal conveying, the coal conveying device is started in a reverse coal flow mode. The advantages of the coal-flow-following mode and the coal-flow-reversing mode are combined, on the premise of ensuring the stability of cross-region coal supply, the dead time of the coal pile turning system is greatly reduced, and the energy consumption is saved.

In one embodiment, the control module 500 includes a first controller and a second controller. It can be understood that under many working conditions, the pile turning process of each period is controlled by an independent controller, so that the equipment in the pile turning process of the period can be conveniently controlled when coal is supplied in the region. The first controller is a controller corresponding to a first-stage stack turning process in the stack turning system, and the second controller is a controller corresponding to another-stage stack turning process in the stack turning system. Specifically, the first controller is configured to control the first car dumper 110 and the belt conveyor of the first transfer line 100 if receiving a first local coal supply instruction, so that the first car dumper 110 supplies coal to the first coal storage yard through the first transfer line 100. It is understood that the first local coal supply instruction is used for instructing the first tippler 110 to supply coal to the first coal storage yard. The second controller is configured to control the second tippler 310 and the belt conveyor of the second transfer line 300 if receiving a second local coal supply instruction, so that the second tippler 310 supplies coal to the second coal storage yard through the second transfer line 300. It is understood that the second local coal supply instruction is used to instruct the second tippler 310 to supply coal to the second coal storage yard.

The second controller is further configured to transfer the control right of the belt conveyor of the second patch cord 300, the second tippler 310, and the belt conveyor terminating the second coal storage yard to the first controller if the cross-regional coal supply instruction is received. When cross-region coal supply is needed, in order to ensure the uniformity of process control and reduce the labor intensity of central control personnel, the control right of the second controller to the equipment in the pile turning process at the current stage can be transferred to the first controller, so that a uniform control system is combined, and repeated control is avoided.

The first controller is also used for controlling the belt conveyor of the first transfer line 100 and the intermediate belt conveyor 200 to start in a reverse coal flow mode if receiving a cross-region coal supply instruction and a control right; and if the belt conveyor of the first transfer line 100 is started, controlling the first tipper 110 to supply coal so as to form coal flow on the belt conveyor of the first transfer line 100 and the intermediate belt conveyor 200; and after the first tippler 110 supplies coal, the belt conveyor on the second transfer line 300 is controlled to start in a reverse coal flow mode, so that the coal flows through the second transfer line 300 to reach the second coal storage yard. In some embodiments, the first controller comprises a PLC unit and the second controller comprises a PLC unit.

In one embodiment, the first controller is further configured to control the belt conveyor on the second transfer line 300 and the belt conveyor terminating in the second coal storage yard to start in a reverse coal flow manner to allow coal to flow through the second transfer line 300 to the second coal storage yard if the time for the first transfer line 100 to work effectively reaches a safe time after the first tippler 110 supplies coal.

In one embodiment, the coal pile turning system further comprises a belt scale for detecting the flow rate of the coal flow on the first transfer line 100. It can be understood that the belt weigher is a relatively common device for detecting the flow of the belt conveyor, and since the flow of the coal flow on the first transfer line 100 is the same as the flow of the intermediate belt conveyor 200 and the flow of the feeding belt conveyor under the fault-free condition, the belt weigher may be disposed on the intermediate belt conveyor 200, the feeding belt conveyor or the belt conveyor of the first transfer line 100. The first controller is also used for acquiring the flow rate of the coal flow on the first transfer line 100 fed back by the belt scale; and if the flow rate of the coal flow on the first transfer line 100 is greater than the preset flow rate, determining that the first transfer line 100 is effectively operated.

In one embodiment, the coal pile-turning system further comprises a movable material guiding mechanism, the movable material guiding mechanism is arranged on the intermediate belt conveyor 200, the movable material guiding mechanism is used for preventing coal flow at the intermediate belt conveyor 200 from overflowing, and a limit switch of the movable material guiding mechanism is used for outputting a detection signal when the second controller transfers the control right to the first controller; the first controller is also used for controlling the belt conveyor of the first transfer line and the intermediate belt conveyor to start in a reverse coal flow mode when receiving the cross-region coal supply instruction, the control right and the detection signal. It can be understood that the movable material guiding machine can fall to a set position to prevent overflow when coal is dropped when the first controller does not obtain the control right, and the movable material guiding machine can be lifted and trigger the limit switch to output a detection signal when the first controller obtains the control right. Therefore, the first controller can further determine whether the authorization of the second controller is obtained according to the detection signal, and the situation that cross-region coal supply cannot be carried out due to authorization failure caused by communication errors, system faults and the like is prevented.

The embodiment of the invention also provides a control device of the coal pile-turning system, the coal pile-turning system comprises a first transfer line, a second transfer line, a first car dumper and a second car dumper, the first transfer line is used for transferring coal provided by the first car dumper to a first coal storage yard, the second transfer line is used for transferring coal provided by the second car dumper to a second coal storage yard, and the second transfer line is mechanically connected with the first transfer line through an intermediate belt conveyor. As shown in fig. 5, the control apparatus includes a first control module 10, a first rollover control module 30, and a second control module 50.

The first control module 10 is used for controlling the belt conveyor of the first transfer line and the intermediate belt conveyor to start in a reverse coal flow mode if a cross-region coal supply instruction is received; and the cross-region coal supply instruction is used for indicating the first tippler to supply coal to the second coal storage yard.

The first tipper control module 30 is configured to control the first tipper to supply coal if the belt conveyor of the first transfer line and the intermediate belt conveyor are started up, so as to form a coal flow on the belt conveyor of the first transfer line and the intermediate belt conveyor.

The second control module 50 is configured to control the belt conveyor on the second transfer line and the belt conveyor terminated with the second coal storage yard to start in a reverse coal flow manner after the first tippler supplies coal, so that the coal flows through the second transfer line to the second coal storage yard.

In one embodiment, the first control module 10 is further configured to control the belt conveyor on the second transfer line and the belt conveyor terminating in the second coal storage yard to start in a reverse coal flow manner if the time for the first transfer line to work effectively reaches the safety time, so that the coal flows through the second transfer line to reach the second coal storage yard.

In one embodiment, the control device further comprises a data acquisition module and a determination module.

The data acquisition module is used for acquiring the flow of the coal flow on the first transfer line.

The judging module is used for judging that the first transfer line is effective to operate if the flow of the coal flow on the first transfer line is larger than the preset flow.

Specific limitations regarding the control device of the coal pile-turning system can be referred to the above limitations regarding the control method of the coal pile-turning system, and will not be described herein again. All or part of each module in the control device of the coal pile turning system can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.

In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program:

if a cross-region coal supply instruction is received, controlling the belt conveyor of the first transfer line and the intermediate belt conveyor to start in a reverse coal flow mode; the cross-region coal supply instruction is used for indicating the first tippler to supply coal to the second coal storage yard; if the belt conveyor and the intermediate belt conveyor of the first transfer line are started, controlling the first tipper to supply coal so as to form coal flow on the belt conveyor and the intermediate belt conveyor of the first transfer line; and after the first tippler supplies coal, controlling the belt conveyor on the second transfer line and the belt conveyor terminated with the second coal storage yard to start in a reverse coal flow mode so that the coal flows through the second transfer line to reach the second coal storage yard.

In one embodiment, the processor, when executing the computer program, further performs the steps of:

after the first tippler supplies coal, if the effective operation time of the first transfer line reaches the safe time, the belt conveyor on the second transfer line and the belt conveyor terminated with the second coal storage yard are controlled to be started in a reverse coal flow mode, so that the coal flows through the second transfer line to reach the second coal storage yard.

In one embodiment, the processor, when executing the computer program, further performs the steps of:

acquiring the flow of the coal flow on the first transfer line; and if the flow of the coal flow on the first transfer line is larger than the preset flow, judging that the first transfer line is effectively operated.

In one embodiment, the processor executes the computer program to further implement the steps of any of the above-described embodiments of a method for controlling a coal pile-turning system.

In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:

if a cross-region coal supply instruction is received, controlling the belt conveyor of the first transfer line and the intermediate belt conveyor to start in a reverse coal flow mode; the cross-region coal supply instruction is used for indicating the first tippler to supply coal to the second coal storage yard; if the belt conveyor and the intermediate belt conveyor of the first transfer line are started, controlling the first tipper to supply coal so as to form coal flow on the belt conveyor and the intermediate belt conveyor of the first transfer line; and after the first tippler supplies coal, controlling the belt conveyor on the second transfer line and the belt conveyor terminated with the second coal storage yard to start in a reverse coal flow mode so that the coal flows through the second transfer line to reach the second coal storage yard.

In one embodiment, the computer program when executed by the processor further performs the steps of:

after the first tippler supplies coal, if the effective operation time of the first transfer line reaches the safe time, the belt conveyor on the second transfer line and the belt conveyor terminated with the second coal storage yard are controlled to be started in a reverse coal flow mode, so that the coal flows through the second transfer line to reach the second coal storage yard.

In one embodiment, the computer program when executed by the processor further performs the steps of:

acquiring the flow of the coal flow on the first transfer line; and if the flow of the coal flow on the first transfer line is larger than the preset flow, judging that the first transfer line is effectively operated.

In one embodiment, the computer program when executed by the processor further implements the steps of any of the above-described embodiments of a method for controlling a coal pile-turning system.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.

In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.