Adaptive intelligent cutting technology of the shearer based on the high-precision three-dimensional dynamic geological model

Hou Yunbing; Zhang Hong; Mao Shanjun; Sun Zhenming; Li Mei; Chen Huazhou

doi:10.19606/j.cnki.jmst.2023.01.003

Volume 8 Issue 1

Feb. 2023

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Article Navigation > Journal of Mining Science and Technology > 2023 > 8(1): 26-38

Hou Yunbing, Zhang Hong, Mao Shanjun, Sun Zhenming, Li Mei, Chen Huazhou. Adaptive intelligent cutting technology of the shearer based on the high-precision three-dimensional dynamic geological model[J]. Journal of Mining Science and Technology, 2023, 8(1): 26-38. doi: 10.19606/j.cnki.jmst.2023.01.003

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Adaptive intelligent cutting technology of the shearer based on the high-precision three-dimensional dynamic geological model

doi: 10.19606/j.cnki.jmst.2023.01.003

1.
School of Energy and Mining Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
2.
School of Earth and Space Sciences, Peking University, Beijing 100871, China
3.
Beijing LongRuan Technologies Inc., Beijing 100190, China

Received Date: 2022-09-02
Rev Recd Date: 2022-10-14
Publish Date: 2023-02-28

Abstract

Abstract

If the shearer is cutting coal using the "memory cutting" technique, a manual demonstration is required.The memory cutting technology has higher requirements on the reserving conditions of coal seams.When the coal seam fluctuates greatly, frequent manual demonstrations are required.The "memory cutting" technology only optimizes the cutting path of the coal seam roof for the next cutting.Along the advancing direction of the shearer, it is impossible to accurately plan and control the pitching angle of the shearer according to the reserving conditions of the coal seam.Based on the concept of shearer self-adaptive intelligent cutting, this paper designs the operation mode of the shearer intelligent cutting system in the fully mechanized working face.In this model, the high-precision three-dimensional geological model of the working face is first constructed by using the highly accurate geophysical data of the coal seam, and then the future cutting path of the shearer is planned by using the model.At the same time, the high-precision three-dimensional geological model is dynamically corrected by using the latest geological data of the working face during the mining process.In this paper, the high-precision three-dimensional dynamic geological model is coupled with the shearer mining planning algorithm.According to the model, a shearer mining control baseline planning algorithm that can adapt to the changes of the coal seam is proposed, which realizes the pitching control of the shearer in the advancing direction and the cutting control in the pulling direction, as well as the efficient cooperation between the update of the geological model, the planning of the mining baseline and the adjustment of the shearer drum.The calculation service interface of the drum adjustment parameters in the intelligent cutting system and the communication protocol between the intelligent cutting system is designed.Addtionally, the shearer control system is considered.This realizes the precise control of the shearer drum based on the planning cutting path.The intelligent cutting system of fully mechanized working face is applied to guide the production of shearers.The practice shows that the shearer intelligent cutting system is suitable for coal seams with various degrees of floor inclination.The cutting line of the shearer can better fit the roof and floor lines of the coal seam, which can save resources and improve production efficiency.

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References

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Adaptive intelligent cutting technology of the shearer based on the high-precision three-dimensional dynamic geological model

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