阅读说明：本技术 低负荷冶金专用磨煤机断煤控制方法及设备 (Coal breaking control method and device for special coal mill for low-load metallurgy ) 是由 季华 于 2021-09-01 设计创作，主要内容包括：本发明涉及热工自动控制技术领域,具体涉及一种低负荷冶金专用磨煤机断煤控制方法及设备；采集模块利用多个传感器对磨煤机进行监控,获得磨煤机的工作状态数据,并将工作状态数据上传至判断模块,判断模块将工作状态数据与设定的各个参数阈值进行对比,判断是否发生断煤等故障,并将判断结论上传至预警模块,预警模块根据判断结论编辑相应的预警信息,并将预警信息上传至用户,供用户及时获得故障信息,进而及时对磨煤机进行调整,避免出现磨煤机损坏或事故发生,保障安全生产。(The invention relates to the technical field of automatic control of thermal engineering, in particular to a coal breaking control method and a coal breaking control device for a special coal mill for low-load metallurgy; the acquisition module utilizes a plurality of sensors to monitor the coal pulverizer, obtains the operating condition data of coal pulverizer, and upload the operating condition data to the judgment module, the judgment module compares operating condition data with each parameter threshold value of settlement, judge whether break coal and other faults occur, and upload the judgement conclusion to the early warning module, the early warning module edits corresponding early warning information according to the judgement conclusion, and upload the early warning information to the user, supply the user in time to obtain the fault information, and then in time adjust the coal pulverizer, avoid appearing the coal pulverizer and damage or occurence of failure, guarantee safety in production.)

1. A coal-breaking control device of a special coal mill for low-load metallurgy is characterized by comprising an acquisition module, a judgment module and an early warning module;

the acquisition module is connected with the judgment module, and the judgment module is connected with the early warning module;

the acquisition module is used for acquiring the working state data of the coal mill and uploading the working state data to the judgment module;

the judging module is used for judging whether the coal mill fails according to the working state data and uploading a judgment conclusion to the early warning module;

and the early warning module is used for editing corresponding early warning information according to the judgment conclusion and uploading the early warning information to a user.

2. The coal breakage control device for the special coal mill for low load metallurgy according to claim 1,

the acquisition module comprises a wind pressure unit and a current unit; the wind pressure unit is connected with the judging module, and the current unit is connected with the judging module;

the wind pressure unit is composed of a wind pressure sensor, is arranged at an inlet of the coal mill, monitors primary wind pressure data of the inlet of the coal mill, and uploads the wind pressure data to the judgment module;

and the current unit is used for monitoring the operating current data of the coal mill and uploading the current data to the judgment module.

3. The coal breakage control device for the special coal mill for low load metallurgy according to claim 2,

the acquisition module further comprises a temperature unit, and the temperature unit is connected with the judgment module;

the temperature unit is composed of temperature sensors, is respectively arranged on the separator inlet, the separator outlet, the large tank barrel of the coal mill and the coal mill outlet, and is used for monitoring temperature data and uploading the temperature data to the judgment module.

4. The coal breakage control device for the special coal mill for low load metallurgy according to claim 3,

the acquisition module further comprises a vibration unit, and the vibration unit is connected with the judgment module;

the vibration unit is used for monitoring vibration data of a grinding roller of the coal mill and uploading the vibration data to the judgment module.

5. The coal breakage control device for the special coal mill for low load metallurgy according to claim 4,

the judging module comprises a storage unit and a threshold control unit, the storage unit is respectively connected with the wind pressure unit, the current unit, the temperature unit and the vibration unit, and the threshold control unit is respectively connected with the storage unit and the early warning module;

the storage unit is used for acquiring and storing data uploaded by the wind pressure unit, the current unit, the temperature unit and the vibration unit;

the threshold control unit is used for acquiring the storage data of the storage unit, comparing the storage data with a set threshold, and uploading a comparison result to the early warning module.

6. The coal breakage control method for the low-load metallurgy special coal mill, which is disclosed by claim 1, is characterized by comprising the following steps of:

the method comprises the steps of obtaining working state data of the coal mill, and uploading the working state data to a judgment module;

the judging module judges whether the coal mill fails according to the working state data and uploads a judgment conclusion to the early warning module;

and the early warning module edits corresponding early warning information according to the judgment conclusion and uploads the early warning information to a user.

7. The coal breakage control method for the low-load metallurgy special coal mill as claimed in claim 6, wherein the method comprises the steps of obtaining the working state data of the coal mill and uploading the working state data to the judging module, and the method further comprises the following steps:

the working state data comprises primary air pressure data of an inlet of the coal mill, operating current data of the coal mill, temperature data of the separator and the coal mill and vibration data of a grinding roller of the coal mill.

Technical Field

The invention relates to the technical field of automatic control of thermal engineering, in particular to a coal breaking control method and a coal breaking control device for a special coal mill for low-load metallurgy.

Background

The installation of new energy units is increasing day by day, and the low-load working condition operation of the thermal generator set becomes a normal state. The coal mill is used as an important auxiliary device of a boiler system, and the operation mode of the coal mill directly influences the safety, stability and economy of a unit.

Coal breakage of a coal mill is a common problem in boiler operation, and if the coal breakage is not found timely, the treatment measures are not in place, so that the boiler fire accident can be caused. However, the coal breakage control equipment of the existing coal mill also relies on manual real-time monitoring, then judges whether the coal mill is abnormal such as coal breakage or not according to self experience, and then stops the coal mill or adjusts corresponding parameters and the like; if people look around the disk, if the people do not pay attention, the problems are not found in time, and safety accidents or machine damage can be caused.

Disclosure of Invention

The invention aims to provide a coal breakage control method and equipment for a special coal mill for low-load metallurgy, and aims to solve the technical problem that safety accidents or machine damage can be caused if the coal breakage control equipment of the coal mill in the prior art is monitored in real time manually and is looked after manually, and once the problems are not discovered in time without attention.

In order to achieve the purpose, the coal breakage control device for the low-load metallurgy special coal mill comprises an acquisition module, a judgment module and an early warning module;

the acquisition module is connected with the judgment module, and the judgment module is connected with the early warning module;

the acquisition module is used for acquiring the working state data of the coal mill and uploading the working state data to the judgment module;

the judging module is used for judging whether the coal mill fails according to the working state data and uploading a judgment conclusion to the early warning module;

and the early warning module is used for editing corresponding early warning information according to the judgment conclusion and uploading the early warning information to a user.

The coal pulverizer comprises a collection module, a judgment module, an early warning module and a warning module, wherein the collection module senses working state data of the coal pulverizer by using various sensors and uploads the working state data to the judgment module, the judgment module compares the working state data with a set threshold value, if the working state data exceed the threshold value range, a coal breaking fault occurs, a judgment conclusion is uploaded to the early warning module, the early warning module edits corresponding early warning information according to the judgment conclusion and uploads the early warning information to a user, the user is reminded to find the fault in time, and further the fault can be responded in time, so that the coal pulverizer is prevented from being damaged or being in accident.

The acquisition module comprises a wind pressure unit and a current unit; the wind pressure unit is connected with the judging module, and the current unit is connected with the judging module;

the wind pressure unit is composed of a wind pressure sensor, is arranged at an inlet of the coal mill, monitors primary wind pressure data of the inlet of the coal mill, and uploads the wind pressure data to the judgment module;

and the current unit is used for monitoring the operating current data of the coal mill and uploading the current data to the judgment module.

The wind pressure unit monitors primary wind pressure data of an inlet of the coal mill, and the current unit monitors current data of operation of the coal mill.

The acquisition module further comprises a temperature unit, and the temperature unit is connected with the judgment module;

the temperature unit is composed of temperature sensors, is respectively arranged on the separator inlet, the separator outlet, the large tank barrel of the coal mill and the coal mill outlet, and is used for monitoring temperature data and uploading the temperature data to the judgment module.

The temperature sensor senses the temperature of the separator and the coal pulverizer.

The acquisition module further comprises a vibration unit, and the vibration unit is connected with the judgment module;

the vibration unit is used for monitoring vibration data of a grinding roller of the coal mill and uploading the vibration data to the judgment module.

The vibration unit monitors vibration data of a grinding roller of the coal mill.

The judging module comprises a storage unit and a threshold control unit, the storage unit is respectively connected with the wind pressure unit, the current unit, the temperature unit and the vibration unit, and the threshold control unit is respectively connected with the storage unit and the early warning module;

the storage unit is used for acquiring and storing data uploaded by the wind pressure unit, the current unit, the temperature unit and the vibration unit;

the threshold control unit is used for acquiring the storage data of the storage unit, comparing the storage data with a set threshold, and uploading a comparison result to the early warning module.

The storage unit stores data monitored by each sensor, the threshold control unit acquires the stored data, compares the stored data with each set parameter threshold to obtain a comparison result, and uploads the comparison result to the early warning module.

A coal breakage control method for a special low-load metallurgy coal mill comprises the following steps:

the method comprises the steps of obtaining working state data of the coal mill, and uploading the working state data to a judgment module;

the judging module judges whether the coal mill fails according to the working state data and uploads a judgment conclusion to the early warning module;

and the early warning module edits corresponding early warning information according to the judgment conclusion and uploads the early warning information to a user.

Firstly, various sensors are used for monitoring the working state of the coal mill, working state data are obtained and are uploaded to the judging module, the judging module compares the working state data with set parameter thresholds to obtain a comparison result, then a judgment conclusion is uploaded to the early warning module, and the early warning module edits corresponding early warning information according to the judgment conclusion and uploads the early warning information to a user for the user to obtain fault information in time.

The method comprises the following steps of obtaining working state data of the coal mill, and uploading the working state data to a judgment module, wherein the method further comprises the following steps:

the working state data comprises primary air pressure data of an inlet of the coal mill, operating current data of the coal mill, temperature data of the separator and the coal mill and vibration data of a grinding roller of the coal mill.

The working state data comprises primary air pressure data, coal mill operating current data, separator and coal mill temperature data and coal mill grinding roller vibration data.

According to the coal breakage control method and the coal breakage control device for the low-load metallurgy special coal mill, the collection module monitors the coal mill by using the plurality of sensors to obtain the working state data of the coal mill, the working state data are uploaded to the judgment module, the judgment module compares the working state data with the set parameter thresholds to judge whether faults such as coal breakage occur or not and uploads the judgment conclusion to the early warning module, the early warning module edits corresponding early warning information according to the judgment conclusion and uploads the early warning information to a user, so that the user can obtain fault information in time, the coal mill is adjusted in time, damage or accidents of the coal mill are avoided, and safe production is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, 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 breakage control device of a low-load metallurgy special coal mill.

FIG. 2 is a schematic diagram of the connection of the memory cell of the present invention.

Fig. 3 is a schematic diagram of the connection of the threshold control unit of the present invention.

Fig. 4 is a schematic diagram of the connection of the alarm unit of the present invention.

FIG. 5 is a step diagram of the coal breakage control method of the special coal mill for low-load metallurgy.

The system comprises a 1-acquisition module, a 2-judgment module, a 3-early warning module, an 11-wind pressure unit, a 12-current unit, a 13-temperature unit, a 14-vibration unit, a 21-storage unit, a 22-threshold control unit, a 31-alarm unit, a 32-communication unit and a 33-control unit.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1, the invention provides a coal breakage control device for a special coal mill for low-load metallurgy, which comprises an acquisition module 1, a judgment module 2 and an early warning module 3;

the acquisition module 1 is connected with the judgment module 2, and the judgment module 2 is connected with the early warning module 3;

the acquisition module 1 is used for acquiring working state data of the coal mill and uploading the working state data to the judgment module 2;

the judging module 2 is used for judging whether the coal mill fails according to the working state data and uploading a judgment conclusion to the early warning module 3;

and the early warning module 3 is used for editing corresponding early warning information according to the judgment conclusion and uploading the early warning information to a user.

In this embodiment, the acquisition module 1 monitors the working state of the coal mill by using each sensor installed on the coal mill, and uploads the working state data to the judgment module 2, the judgment module 2 compares the acquired working state data with a set threshold value, judges whether the working state data is within the threshold value range, if the working state data exceeds the threshold value, the coal-break fault occurs, and uploads a judgment conclusion to the early-warning module 3, the early-warning module 3 edits corresponding early-warning information according to the judgment conclusion, and uploads the early-warning information to a user, so that the user can obtain coal-break information in time, and further take corresponding measures, thereby avoiding damage or fire accident of the coal mill, ensuring production safety, avoiding manual real-time monitoring, and promoting more timely monitoring.

Further, referring to fig. 1 and fig. 2, the collecting module 1 includes a wind pressure unit 11 and a current unit 12; the wind pressure unit 11 is connected with the judging module 2, and the current unit 12 is connected with the judging module 2;

the wind pressure unit 11 is composed of a wind pressure sensor, is arranged at an inlet of the coal mill, monitors primary wind pressure data of the inlet of the coal mill, and uploads the wind pressure data to the judgment module 2;

the current unit 12 is configured to monitor operating current data of the coal mill and upload the current data to the determination module 2.

Further, referring to fig. 1 and fig. 2, the acquisition module 1 further includes a temperature unit 13, and the temperature unit 13 is connected to the determination module 2;

the temperature unit 13 is composed of temperature sensors, is respectively arranged on the separator inlet, the separator outlet, the large tank barrel of the coal mill and the coal mill outlet, and is used for monitoring temperature data and uploading the temperature data to the judgment module 2.

Further, referring to fig. 1 and fig. 2, the acquisition module 1 further includes a vibration unit 14, and the vibration unit 14 is connected to the determination module 2;

the vibration unit 14 is used for monitoring vibration data of the grinding roller of the coal mill and uploading the vibration data to the judgment module 2.

In this embodiment, the wind pressure unit 11 is composed of model AR-8080B wind pressure sensor, and sets up the wind pressure sensor in the import department of coal pulverizer, and the response coal pulverizer carries out a wind pressure data, and uploads the wind pressure data to the judging module 2, the current unit 12 is composed of model LRD 21C's current monitor, is connected with the coal pulverizer power, monitors the current situation in the coal pulverizer operation process, and uploads the current data to the judging module 2, the temperature unit 13 is composed of model PT 100's temperature sensor, sets up in separator inlet and outlet and coal pulverizer, coal pulverizer exit, monitors the temperature situation of separator and coal pulverizer, and uploads the temperature data to the judging module 2, the vibration unit 14 is composed of model EA 192's vibration sensor, sets up in the grinding roller department of coal pulverizer, monitors the grinding roller vibration situation, and the vibration data is uploaded to the judgment module 2, so that the fault judgment is conveniently carried out subsequently.

Further, referring to fig. 1 to 4, the determining module 2 includes a storage unit 21 and a threshold control unit 22, the storage unit 21 is respectively connected to the wind pressure unit 11, the current unit 12, the temperature unit 13 and the vibration unit 14, and the threshold control unit 22 is respectively connected to the storage unit 21 and the early warning module 3;

the storage unit 21 is configured to acquire and store data uploaded by the wind pressure unit 11, the current unit 12, the temperature unit 13, and the vibration unit 14;

the threshold control unit 22 is configured to acquire the storage data of the storage unit 21, compare the acquired storage data with a set threshold, and upload a comparison result to the early warning module 3.

In this embodiment, memory cell 21 acquires wind pressure data, current data, temperature data and vibration data to save it, the follow-up retrospection of being convenient for, threshold value control unit 22 sets for the threshold value scope that has each parameter in advance, draws the data of real-time recording in the memory cell 21, and the contrast, when one or more of wind pressure data increase suddenly, current data decline, temperature data increase, vibration data reduce takes place, then judges that the coal pulverizer appears the coal break trouble, and will judge the conclusion and upload to early warning module 3.

Further, referring to fig. 1 and 4, the early warning module 3 includes an alarm unit 31 and a communication unit 32, the alarm unit 31 is connected to the threshold control unit 22, and the communication unit 32 is connected to the alarm unit 31;

the alarm unit 31 is configured to obtain the comparison result, edit the comparison result into corresponding warning information according to the comparison result, and upload the warning information to the communication unit 32;

the communication unit 32 is configured to acquire the warning information, upload the warning information to a user, and acquire a user instruction.

Further, referring to fig. 1, the early warning module 3 further includes a control unit 33, and the control unit 33 is connected to the communication unit 32;

and the control unit 33 is configured to obtain the user instruction, and control the coal mill to adjust corresponding parameters according to the user instruction.

In this embodiment, the alarm unit 31 obtains the determination conclusion and edits corresponding warning information according to the determination conclusion, including using a buzzer to send out an alarm sound, using a flashing lamp to send out light flashing and edit a warning message, and simultaneously uploading the warning message to the communication unit 32, the communication unit 32 uploads the warning message to a mobile phone or a computer of a user based on a wireless network, so that the user can know the fault condition in time and know the condition of a change parameter, and then the user sends a single user instruction to the communication unit 32 through the mobile phone or the computer, the communication unit 32 sends the user instruction to the control unit 33, the control unit 33 is connected with a PLC end of the coal mill, so that the user can directly stop the coal mill or adjust corresponding parameters, and further can find the fault in time, and the user can timely regulate and control the coal mill, the occurrence of safety accidents and damage situations thereof is avoided.

Referring to fig. 5, a coal breaking control method for a special coal mill for low-load metallurgy includes the following steps:

s101: the method comprises the steps of obtaining working state data of the coal mill, and uploading the working state data to a judging module 2, wherein the working state data comprise primary air pressure data of an inlet of the coal mill, running current data of the coal mill, temperature data of a separator and the coal mill and vibration data of a grinding roller of the coal mill;

s102: the judging module 2 judges whether the coal mill fails according to the working state data and uploads a judgment conclusion to the early warning module 3;

s103: and the early warning module 3 edits corresponding early warning information according to the judgment conclusion and uploads the early warning information to a user.

In the embodiment, firstly, each sensor is used for monitoring the working condition of the coal mill, including primary air pressure data of the coal mill, running current data of the coal mill, temperature data of the separator and the coal mill and vibration data of a grinding roller of the coal mill, and the working condition data of the coal mill is uploaded to the judging module 2, the judging module 2 compares the working condition data with a preset threshold value, if the air pressure data is increased, the current data is decreased, the temperature data is increased, one or more conditions in the vibration data reduction occur, namely, coal breaking fault is judged, and the judgment result is uploaded to the early warning module 3, the early warning module 3 edits early warning information according to the corresponding judgment result, including using a buzzer to send out warning sound, using a flashing lamp to send out light flashing and edit an early warning short message, and uploading the early warning short message to a mobile phone or a computer of a user, the user can know the occurrence of the fault in time and respond in time, so that safety accidents or machine damage conditions are avoided.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.