阅读说明：本技术 一种烧结台车快速更换装置及其更换方法 (Sintering trolley quick replacement device and replacement method thereof ) 是由 程学祥 孙维波 王昭君 冯长英 官明徽 黄智光 于 2021-08-24 设计创作，主要内容包括：本发明公开了一种烧结台车快速更换装置及其更换方法,属于烧结设备领域。本发明的烧结台车快速更换装置,包括烧结机头部传动以及环绕烧结机头部传动传动连接的烧结机台车轨道；还包括位于烧结机头部传动前侧上方的起吊机构；烧结机待修空台车在烧结机头部传动的烧结机台车轨道上运行至烧结机台车换车点时,起吊机构将烧结机待换空台车与烧结机待修空台车快速更换,两个空台车运行至烧结机头部指定位置进行更换,前后空台车的挤压力较小甚至为零,尽可能的避免了因载料台车在上轨道运行情况下出现因轨道间距小而放不进去新台车的情况。(The invention discloses a quick replacing device and a replacing method for a sintering trolley, and belongs to the field of sintering equipment. The invention relates to a rapid replacing device for a sintering pallet, which comprises a head part transmission of a sintering machine and a sintering pallet track which is in transmission connection with the head part transmission of the sintering machine in a surrounding way; the hoisting mechanism is positioned above the transmission front side of the head of the sintering machine; when the sintering machine to-be-repaired empty trolley runs to a sintering machine trolley changing point on a sintering machine trolley track driven by the head of the sintering machine, the hoisting mechanism quickly changes the sintering machine to-be-repaired empty trolley and the sintering machine to-be-repaired empty trolley, the two empty trolleys run to the specified positions of the head of the sintering machine to be changed, the extrusion force of the front empty trolley and the rear empty trolley is small or even zero, and the situation that new trolleys cannot be placed due to small track intervals under the condition that the material carrying trolleys run on the upper tracks is avoided as far as possible.)

1. A quick replacing device for a sintering trolley comprises a sintering machine head transmission (3) and a sintering trolley track (2) in transmission connection with the sintering machine head transmission (3); the method is characterized in that: the hoisting mechanism (5) is positioned above the front side of the head transmission (3) of the sintering machine; when the sintering machine to-be-empty trolley (8) runs to a sintering machine trolley changing point (7) on a sintering machine trolley track (2) of the sintering machine head transmission (3), the hoisting mechanism (5) quickly changes the sintering machine to-be-empty trolley (9) and the sintering machine to-be-empty trolley (8).

2. The rapid change device for the sintering pallet as claimed in claim 1, wherein: the track of the sintering machine trolley (8) to be emptied running on the sintering machine head transmission (3) to the sintering machine trolley changing point (7) is a running angle theta (4).

3. The rapid change device for the sintering pallet as claimed in claim 2, wherein: the operating angle theta (4) is 40-50 degrees.

4. The rapid change device for the sintering pallet as claimed in claim 2, wherein: and a positioning mechanism which can be linked with a control system of the lifting mechanism (5) is arranged on the trolley (8) to be repaired of the sintering machine.

5. A method for replacing a pallet according to any one of claims 1 to 4, comprising the steps of:

s1, running on a lower rail: the sintering machine empty trolley (6) and the sintering machine empty trolley (8) to be repaired run to the head of the sintering machine in a transmission way (3) on the lower rail of the sintering machine trolley track (2);

s2, performing transmission operation around the head: the sintering machine to-be-repaired empty trolley (8) moves to a sintering machine trolley changing point (7) by surrounding the sintering machine head transmission (3);

s3, transferring the sintering machine to be emptied by the trolley: step S2, simultaneously, the hoisting mechanism (5) transfers the sintering machine to-be-emptied trolley (9) to the upper position of the front side of the sintering machine head transmission (3);

s4, replacement: after the hoisting mechanism (5) puts the sintering machine empty trolleys (9) to be replaced on the sintering machine trolley rails (2) between the sintering machine empty trolleys (6), the sintering machine empty trolleys (8) to be repaired are moved out of the sintering machine trolley rails (2) for maintenance.

Technical Field

The invention relates to the technical field of sintering machines, in particular to a quick replacing device and a replacing method of a sintering trolley.

Background

The sintering process is one of the important processes in the steel production process, the main production equipment is a sintering machine, the iron-containing raw materials, flux, fuel and the like are mixed, strengthened and granulated, the mixture is paved on a trolley of the sintering machine through a feeding device, and after the mixture is ignited and sintered through negative pressure air draft at the bottom, the trolley moves to the tail part of the sintering machine on a track of the sintering machine and is unloaded to cooling equipment for cooling. And the empty trolley after unloading rotates to the lower track to run at the tail part of the sintering machine, rotates to the upper track through the head part of the sintering machine to receive the mixture and ignite and sinter, and the sintering process is repeated in a circulating way.

The existing sintering machine trolley maintenance is generally replaced by a hoisting mechanism right above a horizontal section of an upper track of a sintering machine, and as the sintering machine trolleys are connected by extrusion force of front and rear trolleys before, the trolleys are fully covered with sintering ores, so that serious material scattering is easily caused in the process of taking out the trolleys by the hoisting mechanism; secondly, in the process from taking out the maintenance trolley to replacing a new trolley, because the extrusion force of the maintained trolley and the two trolleys is too large, the gap between the two trolleys is reduced due to the inertia effect, so that the new trolley cannot be put into the position of the original maintenance trolley, and more serious results are caused; in order to reduce the above risks, the running speed of the sintering trolley is generally reduced during maintenance, and at the moment, because the air draft system runs all the time, a large amount of cold air enters due to the increase of gaps, so that a sinter bed is cooled rapidly, the strength of sinter is reduced, and the production efficiency of a sintering machine is influenced.

Disclosure of Invention

1. Technical problem to be solved by the invention

Aiming at the problem of quality reduction of sinter caused by material scattering and rapid cooling of a sinter bed in the overhaul of a sintering machine trolley in the prior art, the invention designs a quick replacing device and a replacing method of the sintering trolley.

2. Technical scheme

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

a quick replacing device for a sintering trolley comprises a head transmission of a sintering machine and a sintering trolley track which is in transmission connection with the head transmission of the sintering machine in a surrounding way; the hoisting mechanism is positioned above the transmission front side of the head of the sintering machine; when the sintering machine to-be-repaired empty trolley runs to a sintering machine trolley changing point on a sintering machine trolley track driven by the head of the sintering machine, the hoisting mechanism quickly changes the sintering machine to-be-repaired empty trolley and the sintering machine to-be-repaired empty trolley, the two empty trolleys run to the specified positions of the head of the sintering machine to be changed, the extrusion force of the front empty trolley and the rear empty trolley is small or even zero, and the situation that new trolleys cannot be placed due to small track intervals under the condition that the material carrying trolleys run on the upper tracks is avoided as far as possible.

According to the further technical scheme, the track of the trolley to be emptied of the sintering machine, which runs from the transmission of the head of the sintering machine to the trolley changing point of the sintering machine, is the running angle theta, so that the running track is quantified, the data is collected and arranged, and then the data is input into a control system of the lifting mechanism, the linkage control of the sintering trolley and the lifting mechanism is facilitated, and the replacement accuracy and the replacement efficiency are improved.

In a further technical scheme, the operation angle theta is 40-50 degrees, when the empty trolley to be repaired of the sintering machine is replaced with the empty trolley to be replaced of the sintering machine in the range, the extrusion force of the front empty trolley and the rear empty trolley is minimum or even zero, the front empty trolley and the rear empty trolley are most suitable for quick replacement of the front empty trolley and the rear empty trolley, and the sliding rail phenomenon can be avoided.

According to the further technical scheme, the trolley to be repaired of the sintering machine is provided with the positioning mechanism which can be linked with the control system of the lifting mechanism, any positioning module in the prior art can be used for the positioning mechanism, and accurate positioning type replacement between the positioning mechanism and the trolley can be realized after the positioning mechanism is linked with the control system of the mechanism, and the normal running speed of the trolley track of the sintering machine does not need to be slowed down.

A method for replacing a sintering trolley by a rapid replacing device of the sintering trolley comprises the following steps:

s1, running on a lower rail: the sintering machine empty trolley and the sintering machine empty trolley to be repaired are driven to run to the head of the sintering machine on a lower rail of a sintering machine trolley track;

s2, performing transmission operation around the head: the trolley to be repaired of the sintering machine is driven to move to a trolley changing point of the sintering machine around the head part of the sintering machine;

s3, transferring the sintering machine to be emptied by the trolley: step S2, simultaneously, the hoisting mechanism transfers the trolley to be emptied of the sintering machine to the upper position of the front side of the head transmission of the sintering machine;

s4, replacement: after the hoisting mechanism puts the sintering machine empty trolleys to be replaced into the sintering machine trolley tracks between the sintering machine empty trolleys, the sintering machine empty trolleys to be repaired are moved out of the sintering machine trolley tracks to be repaired and then are repaired, the overhauling can be carried out repeatedly after the trolley tracks are qualified, the overhauling working efficiency of the trolley is effectively improved, the problems that the strength of sintering ore is reduced and the like caused by material scattering and rapid cooling of a sintering material layer during replacement are solved, the fault rate and the production cost of the sintering machine during overhauling are reduced, and the continuity and the stability of the production process are improved.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

(1) according to the rapid replacing device for the sintering trolley, the overhaul trolley hoisting mechanism is arranged at the front upper position of the head of the sintering machine, so that the working efficiency is high, the rapid replacing of the trolley can be realized, the overhaul can be realized under the condition that the sintering trolley does not store materials, namely, the empty trolley runs, and the material scattering during replacing is thoroughly avoided;

(2) according to the rapid replacing device for the sintering trolleys, the empty trolleys run to the specified positions of the sintering machine head to be repaired and replaced, the front trolleys and the rear trolleys have small force or do not have the effect of extrusion force, and the situation that new trolleys cannot be placed in due to large or small intervals under the condition that the trolleys run on the upper track is greatly reduced;

(3) according to the rapid replacing device for the sintering trolley, the system control relation between the trolley positioning system and the lifting mechanism can be established, when the trolley runs to the specified position, the trolley positioning system is established to be related to the lifting mechanism by controlling the running speed, the lifting mechanism runs to the specified position in advance to wait, and the trolley replacing time is shortened; the maintenance work efficiency and the production process stability of the trolley are effectively improved, and the cost is further reduced;

(4) according to the rapid replacing device and the replacing method for the sintering trolleys, gaps between the front trolley and the rear trolley are not changed during replacing, and a large amount of cold air of a cooling system cannot enter, so that rapid cooling of a sintering material layer is avoided, and stable sinter strength and production efficiency of a sintering machine are maintained.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a sintering machine rail-mounting trolley; 2. sintering the machine trolley track; 3. the head of the sintering machine is driven; 4. an operating angle theta; 5. a hoisting mechanism; 6. sintering machine empty trolley; 7. a sintering machine trolley changing point; 8. a trolley to be repaired of the sintering machine is arranged; 9. the sintering machine is to be emptied.

Detailed Description

For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.

Example 1

The quick replacing device for the sintering pallet comprises a sintering machine head transmission 3 and a sintering machine pallet track 2 which is in transmission connection with the sintering machine head transmission 3 in a surrounding mode; and the hoisting mechanism 5 is positioned above the front side of the head transmission 3 of the sintering machine.

In the rapid sintering pallet replacing device of the present embodiment, as shown in fig. 1, an upper rail pallet 1 of a sintering machine fully loaded with sintering material runs on an upper rail section of a pallet track 2 of the sintering machine, and an empty pallet 6 of the sintering machine and an empty pallet 8 to be repaired of the sintering machine run on a lower rail of the pallet track 2 of the sintering machine to a head transmission 3 of the sintering machine;

when the sintering machine to-be-repaired trolley 8 runs to the sintering machine trolley changing point 7 on the sintering machine trolley track 2 which surrounds the sintering machine head transmission 3, the hoisting mechanism 5 quickly changes the sintering machine to-be-repaired trolley 9 and the sintering machine to-be-repaired trolley 8, so that the two empty trolleys run to the specified positions of the sintering machine head, namely the sintering machine trolley changing point 7 to be changed, the extrusion force of the front empty trolley and the rear empty trolley is smaller or even zero, and the condition that the sintering machine to-be-repaired trolley 9 cannot be placed due to small track distance under the condition of operation of the upper track is avoided as far as possible.

Example 2

The basic structure of the quick replacing device of the sintering trolley of the embodiment is the same as that of the embodiment 1, and the differences and improvements are that: as shown in fig. 1, the trajectory of the sintering machine to-be-repaired trolley 8 moving on the sintering machine head transmission 3 to the sintering machine trolley changing point 7 is an operation angle θ 4, namely, the included angle between the vertical line of the trolley and the sintering machine level, so as to quantify the operation trajectory, collect and arrange the data, and input the data into the control system of the lifting mechanism 5, thereby facilitating the linkage control of the sintering trolley and the lifting mechanism 5, and improving the accuracy and the efficiency of replacement. The inventor aims at different specifications (90 m) in the working process²、180m²、210m²、320m²、360m²、450m²Equal-size, medium-size and small-size sintering machines) is obtained by analyzing and summarizing the data collected by the sintering machine trolleys, when the operation angle theta 4 is near 45 degrees, the overhaul is optimal, the proper overhaul range is 40-50 degrees, when the sintering machine to-be-overhauled empty trolleys 8 with different specifications are replaced with the sintering machine to-be-replaced empty trolleys 9 in the range, the extrusion force of the front and rear empty trolleys is minimum or even zero, the replacement is most suitable for the quick replacement of the front and rear empty trolleys, and the sliding rail phenomenon can be avoided. Taking a typical large sintering machine of 360m as an example, the pitch circle diameter of a head and a tail chain wheel is phi 4136mm, the width of the trolley in the running direction is 1.5m, and when the running angle theta 4 of the trolley is 45 degrees, the action of extrusion force is almost not existed between the trolley and the front and the rear trolleys, so that the sintering production fault caused by the fact that a new trolley cannot be placed in the machine due to the fact that the distance between the trolleys is reduced caused by mutual extrusion and the action of inertia force during upper track maintenance is avoided.

The method for replacing the sintering trolley by the rapid sintering trolley replacing device comprises the following steps:

s1, running on a lower rail: the sintering machine empty trolley 6 and the sintering machine empty trolley 8 to be repaired are driven to run to the head part of the sintering machine 3 on the lower rail of the sintering machine trolley track 2;

s2, performing transmission operation around the head: the sintering machine to-be-repaired trolley 8 moves to a trolley changing point 7 of the sintering machine trolley by surrounding the head part of the sintering machine in a transmission way, and at the moment, the operation angle theta 4 is 40-50 degrees;

s3, transferring the sintering machine to be emptied by the trolley: in step S2, the lifting mechanism 5 transfers the pallet 9 to be emptied of the sintering machine to the upper front side of the sintering machine head transmission 3;

s4, replacement: after the hoisting mechanism 5 puts the sintering machine empty-waiting trolley 9 between the sintering machine empty trolleys 6 on the sintering machine trolley track 2, the sintering machine empty-waiting trolley 8 is moved out of the sintering machine trolley track 2 for maintenance, and the maintenance is qualified and can be repeatedly used, so that the maintenance work efficiency of the trolleys is effectively improved, the problems of sintering ore strength reduction and the like caused by material scattering during replacement and rapid cooling of a sintering material layer are solved, the fault rate and the production cost of the sintering machine during maintenance are reduced, and the continuity and the stability of the production process are improved.

Example 3

The basic structure of the quick replacing device of the sintering trolley and the replacing method thereof in the embodiment is the same as that of the embodiment 2, and the differences and the improvements are that: the sintering machine is provided with a positioning mechanism which can be linked with the control system of the lifting mechanism 5 on the trolley 8 to be repaired, the positioning mechanism can use any positioning module in the prior art, such as a GPS positioning block, and can realize accurate positioning type replacement between the positioning module and the mechanism 5 after being linked with the control system of the mechanism 5, and the normal operation speed of the sintering trolley does not need to be slowed down. In the step S3, by controlling the speed of the sintering machine empty trolley 8 to be repaired, and simultaneously starting the GPS positioning block in association with the hoisting mechanism 5 arranged in front of and above the sintering machine head transmission 3, the hoisting mechanism 5 moves the sintering machine empty trolley 8 to be repaired to a specified position in advance, and the sintering machine empty trolley 8 to be repaired and the sintering machine empty trolley 9 to be replaced are quickly repaired and replaced, thereby effectively improving the trolley repair work efficiency and the production process stability, and further reducing the production process cost.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.