Automatic adjusting system of supporting intensity of advance hydraulic support group and use method thereof

Abstract

The invention discloses an automatic adjusting system of supporting intensity of an advance hydraulic support group and a use method thereof. The system comprises a signal collecting module, a signaltransmission module, a signal analysis treatment module, and a signal execution module. The signal collecting module is used for collecting pressure and displacing signals of an advance supporting hydraulic support, the signal transmission module is connected with the signal collecting module and is used for transmitting the collected pressure and displacing signals to the signal analysis treatment module, the signal analysis treatment module is connected with the signal transmission module and used for analyzing the pressure and displacing signals and sending out a control instruction, and the signal execution module is connected with the signal transmission module and used for executing the control instruction and adjusting local supporting strength of a mining roadway of a fully mechanized coal mining face. Stress conditions of all positions of a top plate of the advance supporting hydraulic support can be monitored in real time, according to different work environments and conditions, each hydraulic cylinder of each advance supporting hydraulic support is precisely controlled in time, the fully-mechanized coal mining process is more stable and reliable, the accident rate is reduced, and the production specification safety is improved.

Description

technical field [0001] The invention belongs to the technical field of coal mining, and in particular relates to an automatic adjustment system for group support strength of advanced hydraulic supports and a method for using the same. Background technique [0002] At this stage, coal mines with low content and thin coal seams are not advocated for mining, while coal mines with high content and thick coal seams are the main targets of coal mining today. The fully mechanized mining face of this kind of coal mine with high content and thick coal seam is generally longer. When the fully mechanized mining face exceeds a certain length, in order to improve mine production efficiency, it is necessary to use advanced support for advanced support. And with the increase of the proportion of highly mining difficult coal seams and complex mining coal seams, the requirements for advanced hydraulic support groups are getting higher and higher. However, the existing advanced hydraulic sup...

AI Technical Summary

Problems solved by technology

In this case, when the leading hydraulic support group is supporting, due to the different working environment, the force distribution in the supporting roof range of the leading hydraulic support group will be uneven

At the same time, the mining process of the shearer will also have a certain disturbance effect on the force within the range of the roof supported by the advanced hydraulic support group

Therefore, if the hydraulic control system in the same state is still used to provide the same support force, it is very easy to cause uneven force within the support range of the leading hydraulic support group

There may even be a phenomenon of excessive or weak local stress, resulting in crack deformation or fracture of the roof, causing safety accidents, endangering the safety of life and property, and also affecting the implementation of mining work

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