Torsional spring type dust receiving and guiding method and device

Abstract

The invention relates to a torsional spring type dust receiving and guiding method and device, and belongs to the field of coal mine hydraulic support lifting falling dust treatment. A dust receiving groove is installed at the end of a lifting support through a rotating shaft and a torsional spring, and when the lifting support descends, the lifting support pushes a rotating shaft to drive the dust receiving groove to rotate, meanwhile, the torsional spring is compressed, and dust in the dust receiving groove is released, and when the lifting support ascends, the torsional spring pushes the dust receiving groove to reset. The device comprises a rotating mechanism and the dust receiving groove formed in the end of the rotating mechanism. The rotating mechanism comprises a rotating plate, a fixed plate and a rotating shaft, the rotating plate and the fixed plate are connected through the rotating shaft, and the dust receiving groove is formed in the side, away from the fixed plate, of the rotating plate. The device is easy to install and convenient to use, solves the problem that falling dust is difficult to treat during column descending and moving of the support, can effectively bear and guide falling dust during column descending and moving of the hydraulic support to the rear side of the support, and the dust control and falling efficiency can reach 92% or above.

Description

technical field [0001] The invention belongs to the field of coal mine hydraulic support lifting and falling dust control field, and relates to a torsion spring type dust receiving and guiding method and device. Background technique [0002] The dust produced by the hydraulic support in the fully mechanized mining face is one of the main dust sources in the fully mechanized mining face, and it is also the main dust source that affects the physical and mental health of the workers. The hydraulic support is mainly used to support the roof and provide a safe space for coal mining operations. Operators carry out coal mining operations in the support space. As the coal mining operation continues to advance, the hydraulic support needs to move forward. Sliding friction under pressure occurs between the beam and the top-coal or roof rock formation, which generates a large amount of dust and instantly falls from the gaps on both sides of the support, forming a large amount of suppor...

AI Technical Summary

Problems solved by technology

The hydraulic support is mainly used to support the roof and provide a safe space for coal mining operations. Operators carry out coal mining operations in the support space. As the coal mining operation continues to advance, the hydraulic support needs to move forward. Sliding friction under pressure occurs between the beam and the top-coal or roof rock formation, which generates a large amount of dust and instantly falls from the gaps on both sides of the support, forming a large amount of support dust that enters the work space, and is gradually diffused to the entire work space driven by the wind flow on the working face. The instantaneous total dust concentration in the area is as high as 2000mg / m3 or more, and the workers are in the support space, and the dust falling from the support freely falls from the top of the workers' heads, seriously affecting the normal operation of the workers, threatening the safe production of the mine and the physical and mental health of the workers, urgently needed Carrying out treatment for the falling dust of hydraulic supports

[0003] At present, most of the control measures for the dust generated by the hydraulic support lowering column and moving the frame are controlled by spraying between the supports. In the field use, there is a large amount of spray water between the supports scattered on the workers, which reduces the comfort of the working environment. At the same time, the spray nozzle It is prone to clogging, which increases the maintenance workload of operators and makes workers unwilling to use it. The spray device is useless and cannot achieve the purpose of dust reduction.

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