阅读说明：本技术 智能化综放工作面放顶煤液压支架无示教记忆放煤系统 (Intelligent fully-mechanized top coal caving hydraulic support teaching-free memory coal caving system ) 是由 路绪良 王忠宾 谭超 闫海峰 司垒 安晓飞 于 2021-09-26 设计创作，主要内容包括：本发明涉及智能化综放工作面放顶煤液压支架无示教记忆放煤系统,属于煤矿井下智能化工作面煤层顶煤开采领域。该放煤系统包括前部刮板输送机,电牵引采煤机,放顶煤液压支架,后部刮板输送机；所述的放顶煤液压支架位于煤层的煤壁；放顶煤液压支架的放煤端设有后部刮板输送机,放顶煤液压支架的后部设有电牵引采煤机,电牵引采煤机的下方布置前部刮板输送机；沿煤层煤壁的工作面推进方向划分若干个放煤象限区域,设定若干个放煤象限区域的放煤次序；若干个放煤象限区域组成1刀综放工作面。本发明的液压支架能够记忆之前放顶煤的放煤参数并且自主修正接下来要放顶煤的放煤参数,实现液压支架自主控制放顶煤,提高了液压支架自主控制的能力。(The invention relates to an intelligent fully mechanized caving face caving top coal hydraulic support teaching-free memory caving system, and belongs to the field of coal mine underground intelligent working face coal seam top coal mining. The coal caving system comprises a front scraper conveyor, an electric traction coal mining machine, a top coal caving hydraulic support and a rear scraper conveyor; the hydraulic support for caving the top coal is positioned on the coal wall of the coal bed; a rear scraper conveyor is arranged at the coal caving end of the top coal caving hydraulic support, an electric traction coal mining machine is arranged at the rear part of the top coal caving hydraulic support, and a front scraper conveyor is arranged below the electric traction coal mining machine; dividing a plurality of coal caving quadrant areas along the advancing direction of a working surface of a coal bed coal wall, and setting the coal caving sequence of the plurality of coal caving quadrant areas; a plurality of coal discharge quadrant areas form a 1-blade fully mechanized coal discharge working surface. The hydraulic support can memorize the coal caving parameters of the previous top coal caving and automatically correct the coal caving parameters of the next top coal caving, so that the hydraulic support can automatically control the top coal caving, and the automatic control capability of the hydraulic support is improved.)

1. The intelligent fully mechanized caving face caving coal hydraulic support teaching-free memory caving system comprises a front scraper conveyor, an electric traction coal mining machine, a caving coal hydraulic support and a rear scraper conveyor; the hydraulic support for caving the top coal is positioned on the coal wall of the coal bed; a rear scraper conveyor is arranged at the coal caving end of the top coal caving hydraulic support, an electric traction coal mining machine is arranged at the rear part of the top coal caving hydraulic support, and a front scraper conveyor is arranged below the electric traction coal mining machine; the method is characterized in that: the coal caving method comprises the following steps of dividing a plurality of coal caving quadrant areas along the advancing direction of a working surface of a coal bed coal wall, and setting the coal caving sequence of the plurality of coal caving quadrant areas; a plurality of coal discharge quadrant areas form a 1-blade fully mechanized coal discharge working surface.

2. The intelligent fully-mechanized caving face caving coal hydraulic support teaching-free memory coal caving system according to claim 1, wherein: the media playing quadrant area is divided into 20 quadrant areas; the hydraulic support for caving the top coal performs circular coal caving in 20 quadrant areas of the fully mechanized caving face.

3. The intelligent fully-mechanized caving face caving coal hydraulic support teaching-free memory coal caving system according to claim 2, wherein: the 20 quadrant areas are sequentially from quadrant #1 to quadrant #20, and the quadrant #1 to the quadrant #20 are arranged in a stepped manner; the quadrant is divided to the first layer of tail along the working face propulsion direction coal seam end of coal seam: quadrant #1, quadrant #6, quadrant #11, quadrant # 16;

the second layer of coal seam end to tail divides the quadrant and does in proper order: quadrant 2#, quadrant #7, quadrant #12, quadrant # 17;

the quadrant of the third layer from the end of the coal seam to the tail is divided into: quadrant #3, quadrant #8, quadrant #13, quadrant # 18;

the quadrant is divided to the fourth layer of coal seam end to tail and is: quadrant #4, quadrant #9, quadrant #14, quadrant # 19;

the fifth layer quadrant from the end of the coal seam to the tail is sequentially as follows: quadrant #5, quadrant #10, quadrant #15, quadrant # 20.

4. The intelligent fully-mechanized caving face caving coal hydraulic support teaching-free memory coal caving system according to claim 3, wherein: and sequentially marking the hydraulic support for the top coal caving positioned in each quadrant.

5. The intelligent fully-mechanized caving face caving coal hydraulic support teaching-free memory coal caving system according to claim 3, wherein: the quadrant division rule is as follows:

according to N top coal caving hydraulic supports on the working surface of the coal wall of the coal bed, M is equal to N/20 hydraulic supports in the quadrant;

and if M is a decimal number, namely a non-integer, rounding M, namely taking an integer M +1 as the hydraulic support in the quadrant.

6. The intelligent fully-mechanized caving face caving coal hydraulic support teaching-free memory caving system according to any one of claims 1 to 5, which is characterized in that: the operation mode of the hydraulic support for caving the top coal according to the 20 quadrant regions of the fully mechanized caving face is as follows:

(1) starting the top coal caving hydraulic support, and initializing a parameter configuration table of the non-teaching top coal caving hydraulic support of the coal mining machine;

(2) reading the current 20 quadrant area data tables;

(3) after the data of the hydraulic support for caving the top coal is read, sequentially carrying out coal caving operation from quadrant #1 to quadrant #20 of the fully mechanized caving face;

(4) the top coal caving hydraulic support starts to perform coal caving at the initial sequence numbers of a quadrant #1, a quadrant #6, a quadrant #11 and a quadrant #16 of a first layer of a front cutter of the fully mechanized caving working face;

the caving top coal hydraulic supports with the starting serial numbers of the quadrant #3, the quadrant #8, the quadrant #13 and the quadrant #18 of the second layer start to discharge coal;

the caving top coal hydraulic supports with the starting serial numbers of the quadrant #4, the quadrant #9, the quadrant #14 and the quadrant #19 of the third layer start to discharge coal;

the top coal caving hydraulic supports with the starting serial numbers of the quadrant #5, the quadrant #10, the quadrant #15 and the quadrant #20 of the fourth layer start to discharge coal;

(5) if a certain caving coal hydraulic support in the current quadrant is abnormal in the coal caving process of the cutter quadrant in the step (4), correcting a data group of the current quadrant and memorizing data; and updating and covering the next data group;

(6) repeating the steps (4) to (5), and discharging the top coal hydraulic supports in the quadrants from the quadrant #1 to the quadrant #20 according to the sequence number; and (4) finishing coal discharge until the cutter quadrant #1 to quadrant #20 finish coal discharge.

7. The intelligent fully-mechanized caving face caving coal hydraulic support teaching-free memory coal caving system according to claim 6, wherein: and after all coal caving rounds of 20 quadrants in the current cutter are finished, entering the next cutter and memorizing the data of 20 quadrant data of the previous cutter to perform coal caving on top coal, and taking the statistics of the previous cutter polling coal caving as the control basis of the new cutter polling coal caving process.

8. The intelligent fully-mechanized caving face caving coal hydraulic support teaching-free memory coal caving system according to claim 6, wherein: the quadrant data set comprises coal caving working face cutter feeding number, coal caving wheel number, coal caving starting time, coal caving finishing time, coal caving duration, rear scraper conveyor current and frequency parameters; and producing a coal discharge parameter configuration coal discharge meter in the next coal discharge process of 20 quadrants by the quadrant data set.

Technical Field

The invention relates to an intelligent fully mechanized caving face caving top coal hydraulic support teaching-free memory caving system, and belongs to the field of coal mine underground intelligent working face coal seam top coal mining.

Background

In an underground intelligent fully mechanized caving working face of a coal mine, a hydraulic support for caving top coal is used as main supporting and coal mining equipment in the underground coal mine, and the supporting performance of the underground working face and the coal mining efficiency are determined by the automation and intelligence degree of the hydraulic support. In the process of mining the top coal of the underground fully mechanized caving face of the coal mine, the hydraulic support for caving the top coal caving is used for caving the top coal through the tail beam and the inserting plate of the support, and the size of the top coal caving amount is controlled by controlling the angle of the tail beam and the telescopic amount of the inserting plate of the hydraulic support for caving the top coal. The coal blocks put down by the top coal hydraulic support fall into the rear scraper conveyor and are conveyed out by the rear scraper conveyor.

The top coal caving coal mining method is an ancient coal mining method, a stope face is arranged at the bottom of a coal seam, and coal is caving behind the stope face under the action of mine pressure or with the assistance of a manual loosening method, so that the top coal caving coal mining method is a low-energy-consumption coal mining method. The fully mechanized top coal caving coal mining method comprises the following methods: (1) the pre-mining top-layering coal mining method is characterized in that a common longwall stoping working face is arranged in a coal seam along a top plate, then stoping is carried out on a top coal caving working face arranged along a bottom plate, and top coal at the upper part of a bottom layer is discharged; (2) the coal mining method of fully mechanized top coal caving of once mining, namely arrange the coal caving and stoping working face along the bottom plate, will discharge the upper top coal after the stoping working face advances certain distance, the whole thickness of the coal seam of once mining; (3) the layered fully mechanized top coal caving mining method is to divide the thickness of a coal seam into a plurality of sections for an extremely thick coal seam, and to use a top coal caving mining machine process to perform layered mining from top to bottom in sequence. The caving mode of the caving coal working face can be divided into the following modes according to the caving sequence, the number of times and the caving quantity of the caving coal hydraulic support: (1) sequentially discharging coal in a single wheel, sequentially numbering the working face supports, starting from the 1 st support to the last support, and discharging the gangue in each support; (2) carrying out multiple rounds of sequential equivalent coal caving, sequentially carrying out coal caving on the working face support, putting 1/2-1/3 top coal on each support, carrying out next round of coal caving after one round of coal caving is finished, and repeating 2-3 rounds until all the top coal is put; (3) equally discharging coal at intervals for multiple rounds, firstly discharging the supports with the odd numbers at the coal discharge port, sequentially discharging the coal from small to large according to the numbers, then discharging the supports with the even numbers at the coal discharge port, sequentially discharging the coal from small to large according to the numbers, discharging the top coal of 1/2-1/3 each time, and repeating for 2-3 rounds until all the top coal is discharged; (4) and (3) coal is put at intervals in a single round, namely, a plurality of top coals above the single-number supports with odd numbers are put firstly, and then a plurality of top coals above the double-number supports with even numbers are put. The above coal caving mode can cause large coal loss, gangue is easily mixed in the coal which is discharged, the requirement on the operation level of workers is high, the coal caving amount of each frame is difficult to control, the coal caving time is long, and further the coal caving mining efficiency is low.

Most domestic coal mines are still installed in a manual mode according to experience of caving hydraulic support operators to control coal caving through manual operation. Due to the fact that the working condition environment of the underground fully mechanized caving face of the coal mine is complex and the experience of operators is different greatly, accurate coal caving is difficult to meet, namely coal caving time is short and the coal which is caving does not contain impurity gangue. And with the rapid development of industrial intelligence, the coal industry is integrating intellectualization into coal mining, the automation and intellectualization of the caving coal hydraulic support are required on the intelligent fully mechanized caving face at present, the caving coal hydraulic support is required to automatically or autonomously complete the caving coal work, and the coal caving mining efficiency is further improved. Therefore, as a core device for coal caving of an intelligent fully mechanized caving face, automation and intelligence of the working process of caving coal of the hydraulic support for caving coal need to be realized.

Disclosure of Invention

The invention provides an intelligent fully mechanized caving face caving top coal hydraulic support teaching-free memory caving system aiming at the problems.

The invention adopts the following technical scheme:

the invention relates to an intelligent fully mechanized caving face top coal caving hydraulic support teaching-free memory coal caving system which comprises a front scraper conveyor, an electric traction coal mining machine, a top coal caving hydraulic support and a rear scraper conveyor; the hydraulic support for caving the top coal is positioned on the coal wall of the coal bed; a rear scraper conveyor is arranged at the coal caving end of the top coal caving hydraulic support, an electric traction coal mining machine is arranged at the rear part of the top coal caving hydraulic support, and a front scraper conveyor is arranged below the electric traction coal mining machine; the coal caving method comprises the following steps of dividing a plurality of coal caving quadrant areas along the advancing direction of a working surface of a coal bed coal wall, and setting the coal caving sequence of the plurality of coal caving quadrant areas; a plurality of coal discharge quadrant areas form a 1-blade fully mechanized coal discharge working surface.

The invention relates to an intelligent fully-mechanized top coal caving hydraulic support teaching-free memory coal caving system which is characterized in that: the media playing quadrant area is divided into 20 quadrant areas; the hydraulic support for caving the top coal performs circular coal caving in 20 quadrant areas of the fully mechanized caving face.

The intelligent fully-mechanized top coal caving hydraulic support teaching-free memory coal caving system comprises 20 quadrant areas, namely quadrant #1 to quadrant #20, wherein the quadrant #1 to the quadrant #20 are arranged in a step shape; the quadrant is divided to the first layer of tail along the working face propulsion direction coal seam end of coal seam: quadrant #1, quadrant #6, quadrant #11, quadrant # 16;

the second layer of coal seam end to tail divides the quadrant and does in proper order: quadrant 2#, quadrant #7, quadrant #12, quadrant # 17;

the quadrant of the third layer from the end of the coal seam to the tail is divided into: quadrant #3, quadrant #8, quadrant #13, quadrant # 18;

the quadrant is divided to the fourth layer of coal seam end to tail and is: quadrant #4, quadrant #9, quadrant #14, quadrant # 19;

the fifth layer quadrant from the end of the coal seam to the tail is sequentially as follows: quadrant #5, quadrant #10, quadrant #15, quadrant # 20.

The intelligent fully-mechanized caving working face top coal caving hydraulic support non-teaching memory coal caving system comprises a hydraulic support, a hydraulic control system and a hydraulic control system.

The invention relates to an intelligent fully-mechanized top coal caving hydraulic support teaching-free memory coal caving system, which has the following quadrant division rule:

according to N hydraulic supports for caving the top coal on the working surface of the coal wall of the coal bed, M is equal to N/20 hydraulic supports in the quadrant;

if M is a decimal number, namely a non-integer, rounding M; and M is an integer which is not larger than the floating point number M again, M hydraulic supports are arranged in quadrants with odd quadrant serial numbers, M +1 hydraulic supports are arranged in quadrants with even quadrant serial numbers, and the hydraulic supports for top coal caving are distributed in an object limit mode according to the sequence of the quadrant serial numbers from small to large.

The intelligent fully-mechanized caving working face top coal caving hydraulic support teaching-free memory coal caving system adopts the following operation mode according to 20 quadrant area top coal caving hydraulic supports of the fully-mechanized caving working face:

(1) starting the top coal caving hydraulic support, and initializing a parameter configuration table of the non-teaching top coal caving hydraulic support of the coal mining machine;

(2) reading the current 20 quadrant area data tables;

(3) after the data of the hydraulic support for caving the top coal is read, sequentially carrying out coal caving operation from quadrant #1 to quadrant #20 of the fully mechanized caving face;

(4) the top coal caving hydraulic support starts to perform coal caving at the initial sequence numbers of a quadrant #1, a quadrant #6, a quadrant #11 and a quadrant #16 of a first layer of a front cutter of the fully mechanized caving working face;

the caving top coal hydraulic supports with the starting serial numbers of the quadrant #3, the quadrant #8, the quadrant #13 and the quadrant #18 of the second layer start to discharge coal;

the caving top coal hydraulic supports with the starting serial numbers of the quadrant #4, the quadrant #9, the quadrant #14 and the quadrant #19 of the third layer start to discharge coal;

the top coal caving hydraulic supports with the starting serial numbers of the quadrant #5, the quadrant #10, the quadrant #15 and the quadrant #20 of the fourth layer start to discharge coal;

(5) if a certain caving coal hydraulic support in the current quadrant is abnormal in the coal caving process of the cutter quadrant in the step (4), correcting a data group of the current quadrant and memorizing data; and updating and covering the next data group;

(6) repeating the steps (4) to (5), and discharging the top coal hydraulic supports in the quadrants from the quadrant #1 to the quadrant #20 according to the sequence number; and (4) finishing coal discharge until the cutter quadrant #1 to quadrant #20 finish coal discharge.

According to the intelligent fully-mechanized caving working face top coal caving hydraulic support teaching-free memory coal caving system, after all coal caving rounds of 20 quadrants in the current cutter are finished, the next cutter enters and data of 20 quadrant data of the previous cutter is memorized to carry out top coal caving, and the previous cutter polling coal caving statistics is used as a control basis for a new cutter polling coal caving process.

The intelligent fully-mechanized caving working face top coal caving hydraulic support non-teaching memory coal caving system comprises quadrant data set including coal caving working face cutter feeding number, coal caving turn number, coal caving start time, coal caving end time, coal caving duration, rear scraper conveyor current and frequency parameters; and producing a coal discharge parameter configuration coal discharge meter in the next coal discharge process of 20 quadrants by the quadrant data set.

Advantageous effects

According to the intelligent fully-mechanized caving working face caving coal hydraulic support teaching-free memory caving system, the hydraulic support can memorize the caving parameters of the previous caving coal and automatically correct the caving parameters of the next caving coal, so that the hydraulic support can automatically control the caving coal, and the capacity of the hydraulic support in automatic control is improved.

The intelligent fully-mechanized caving working face top coal caving hydraulic support teaching-memory-free coal caving system provided by the invention reduces the failure rate of a hydraulic support top coal caving device, improves the starting rate of the hydraulic support top coal caving device, and further improves the production safety and the production efficiency.

According to the intelligent fully-mechanized caving working face caving coal hydraulic support teaching-memory-free caving system, in the hydraulic support caving coal process, manual teaching is not needed to control the hydraulic support caving coal, the manual intervention rate is greatly reduced, the workload of maintenance personnel is reduced, the labor intensity of the working personnel is reduced, and further the labor condition of the working personnel is improved;

the intelligent fully-mechanized caving working face top coal caving hydraulic support teaching-free memory coal caving system provided by the invention improves the intelligent level of the hydraulic support and lays a foundation for the construction of an intelligent fully-mechanized caving working face.

Drawings

FIG. 1 is a schematic view of the intelligent fully mechanized caving face caving coal hydraulic support caving coal of the present invention;

FIG. 2 is a schematic diagram of the propelling direction and the coal flow direction of the intelligent fully mechanized caving face of the invention;

FIG. 3 is a schematic diagram of the intelligent fully mechanized caving face 20 quadrant interval time sequence step caving coal of the present invention;

FIG. 4 is a flow chart of the intelligent fully mechanized caving face caving top coal hydraulic support teaching-free memory coal caving system and method.

In the figure: 1. the device comprises a front scraper conveyor, 2 an electric traction coal mining machine, 3 a top coal caving hydraulic support, 4 and a rear scraper conveyor.

Detailed Description

In order to make the purpose and technical solution of the embodiments of the present invention clearer, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.

The invention provides an intelligent fully mechanized caving face caving top coal hydraulic support teaching-free memory coal caving system and method. Along with the propulsion of working face, the hydraulic support of caving top coal circulates the caving coal in the 20 quadrant regions of the full-mechanized caving working face to divide into 20 groups of data, and every quadrant corresponds a set of data, in the hydraulic support crowd of caving coal of the full-mechanized caving working face, poll the interval caving top coal hydraulic support of quadrant that corresponds, hydraulic support caving system reads this interval corresponding data set and carries out automatic operation to the caving coal, and need not artifical demonstration hydraulic support caving coal, and then realize the intelligent caving coal operation of caving coal hydraulic support.

As shown in the following table: the invention discloses a coal caving table for intelligent fully mechanized caving face top coal caving hydraulic support teaching-free memory coal caving parameter configuration. The data in each row of the configuration table (#1 to #20 quadrant) can be displayed and edited by an electronic form and a curve graph, the data generated by dragging and editing a curve is normalized, and the curve editing and the form data are linked in a bidirectional mode.

Intelligent fully-mechanized top coal caving hydraulic support teaching-free memory coal caving parameter configuration coal placing meter

As shown in figures 1 to 2, the fully mechanized caving face caving coal hydraulic support caving coal and the coal flow conveying direction and the fully mechanized caving face advancing direction of the fully mechanized caving face caving coal hydraulic support are shown. An electric traction coal mining machine 2 on an intelligent fully mechanized caving face walks on a front scraper conveyor 1 to cut a coal wall, and cut coal is transported to a reversed loader through the front scraper conveyor 1 and is transported out along the coal flow direction of the reversed loader. The top coal caving is carried out on the intelligent fully mechanized caving face top coal hydraulic support 3, the caving coal is conveyed to the reversed loader through the rear scraper conveyor 4 and conveyed out along the coal flow direction of the reversed loader, and if the sum of the caving coal amount of all the caving coal hydraulic supports on the face is too large in the process, the operation load of the rear scraper conveyor 4 is too large, and the machine is shut down or an electric component is damaged; if the sum of the caving amount of all the caving coal hydraulic supports on the working face is too small, the working load of the rear scraper conveyor 4 is too small, and a large amount of driving power energy is wasted, so that a teaching-free memory method needs to be carried out on the caving coal hydraulic supports on the fully mechanized caving working face, and the caving coal hydraulic supports are made to be robotized and intelligentized.

As shown in fig. 3, which is a schematic view of the intelligent 20-quadrant interval time sequence stepped coal caving diagram of the fully mechanized coal caving face of the invention, all caving coal hydraulic supports of the coal mine underground coal face are divided into 20 quadrant intervals according to the polling coal caving operation sequence and time of the hydraulic supports, and the caving coal hydraulic supports perform polling circulation to caving coal in the 20 quadrant intervals according to the sequence from small to large from quadrant #1 to quadrant #20 along with the advancing direction of the face. Assuming that the hydraulic support starts to poll and discharge coal from the end of the ith cutter working face, dividing 20 quadrants of the fully mechanized caving face according to the polling coal discharge operation sequence and time of the hydraulic support according to the following rules: assuming that the working face has N caving coal hydraulic supports, each quadrant has M which is N/20 hydraulic supports, if M is a decimal number (not an integer), K is the largest integer not larger than M, the quadrant with the quadrant serial number of an odd number has K hydraulic supports, the quadrant with the quadrant serial number of an even number has K +1 hydraulic supports, and the caving coal hydraulic supports are distributed to the object limits according to the sequence of the quadrant serial numbers from small to large. Wherein i is a feeding sequence number, wherein sequence numbers I, II and … in each quadrant in the drawing are serial numbers of the hydraulic supports in each quadrant, the 1 st round of coal caving refers to the I-th hydraulic support coal caving of each quadrant, the 2 nd round of coal caving refers to the II-th hydraulic support coal caving of each quadrant, and the like. In the process of carrying out coal caving on top coal by polling all the top coal caving hydraulic supports on the fully mechanized caving face, the hydraulic supports in a certain quadrant (such as the jth quadrant) are polled to carry out coal caving, and the hydraulic support coal caving system arranges a coal caving table according to the intelligent fully mechanized caving face coal caving hydraulic support non-teaching memory coal caving parameters in table 1 to execute j-i data group data to carry out coal caving.

FIG. 4 shows a teaching-free memory coal caving system and method for an intelligent fully mechanized top coal caving hydraulic support of the invention. When the top coal caving hydraulic support of the fully mechanized caving face is opened for coal caving, firstly, parameter configuration is carried out on a non-teaching memory coal caving parameter configuration coal caving table of the fully mechanized caving face hydraulic support according to the top coal geological data of the fully mechanized caving face in a coal mine geographic information system. The coal caving of the hydraulic support is started, meanwhile, the coal caving system initializes the non-teaching coal caving parameter configuration coal caving meter, data group data of 20 quadrants of the nth (n is 1,2,3 and …) cutter of the working face are read firstly, coal caving is executed after the data reading, the 1 st round coal caving is carried out in each quadrant at first, namely, the I hydraulic support coal caving in each quadrant is carried out, coal caving is carried out on the nth cutter top coal in sequence from quadrant #1 until the 1 st round coal caving in quadrant #20 is finished. In the 1 st round of coal caving process of the cutter #1 to #20 quadrants, if the coal caving operation parameters of the hydraulic support in a certain quadrant (such as the # m quadrant) are abnormal, if the load of a rear scraper conveyor is too large or too small, the coal is continuously discharged after parameter adjustment and correction is carried out according to specific working conditions, corrected data (m-n data group) of the quadrant data group is memorized, and meanwhile, the corrected data group is transmitted to the quadrant data group (m- (n +1)) corresponding to the next cutter for updating and covering, so that the condition that the similar coal caving operation of the hydraulic support occurs in the quadrant corresponding to the next cutter (the n +1 th cutter) is avoided. After the 1 st round of coal caving operation of 20 quadrants of the current cutter (nth cutter) is finished, coal caving is carried out on 20 quadrant hydraulic supports of the 2 nd round, namely coal caving of the II hydraulic supports of each quadrant, and coal caving of each round is carried out by analogy in sequence until coal caving of all hydraulic supports of the cutter is finished. After all round coal caving of 20 quadrants of the current cutter (nth cutter) is finished, entering the next cutter (n +1 th cutter) and memorizing 20 quadrant data of the previous cutter (nth cutter) for top coal caving, using the previous round polling coal caving statistics as the control basis of the polling coal caving process of the new cutter, wherein the memorized data comprises parameters such as the cutter number of a coal caving working face, the coal caving round, the coal caving starting time, the coal caving finishing time, the coal caving duration, the current and the frequency of a rear scraper conveyor, and the like, and the data of the coal caving process is automatically extracted without teaching, so that the coal caving parameter matched coal caving table in the coal caving process of the next cutter (20 th cutter) is produced, can be manually edited or modified, and is transmitted to a hydraulic support coal caving system after being stored and examined, and the coal caving parameter matched coal caving table is automatically discharged by a hydraulic support, or the coal caving parameter matched coal caving table is uploaded to a remote centralized control center for manual coal caving.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.