Large-dip-angle fully-mechanized coal mining face hydraulic support replacement method
A technology of hydraulic support and fully mechanized mining face, applied in the direction of mine roof support, mining equipment, earthwork drilling, etc. Effect
Active Publication Date: 2021-06-29
四川川煤华荣能源有限责任公司
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Problems solved by technology
[0006]
The purpose of the present invention is to solve the problems of low efficiency and loss of high-quality resources existing in the replacement of existing hydraulic supports, provide a method for replacing hydraulic supports in fully mechanized mining faces with large inclination angles, improve the efficiency and safety of hydraulic support replacement, and reduce the loss rate of raw coal
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[0048] Below in conjunction with accompanying drawing, the present invention is further described as follows:
[0049] Replacement method of hydraulic support in fully mechanized mining face with large inclination angle,
[0050] Step 1, support the roof; if Figure 11 As shown, the loading and unloading channel 14 is set on the fully mechanized mining face along the direction from the air return lane 1 to the air inlet lane 2; the loading and unloading equipment is configured, and the traction equipment that pulls the loading and unloading equipment to run along the loading and unloading channel 14 is laid;
[0051] Such as Figure 4 As shown, the loading and unloading equipment includes a loading device 16, a dismounting device 17, and a flatbed car 8 carrying the loading device 16 and the dismounting device 17; the loading device 16 is detachably connected with the flatbed truck 8; The device 17 is detachably connected to the flatbed cart 8;
[0052] Step 2, utilize load...
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The invention discloses a large-dip-angle fully-mechanized coal mining face hydraulic support replacement method, belongs to the field of coal mining, and aims to improve the efficiency and safety of hydraulic support replacement and reduce the loss rate of raw coal. The method comprises the steps that 1, a top plate is supported, and a loading and unloading channel, loading and unloading equipment and traction equipment are arranged, wherein the loading and unloading equipment comprises a loading device, a unloading device and a flat car; 2, the loading device is utilized, the traction equipment pulls a to-be-unloaded hydraulic support to turn to move out of the mounting position of the to-be-unloaded hydraulic support, and the flat car carries the to-be-unloaded hydraulic support to be unloaded to an air return way; and 3, the flat car carries the to-be-loaded hydraulic support to be lowered to the to-be-mounted position, and the unloading device is utilized, the traction equipment pulls the to-be-loaded hydraulic support to turn to move into the mounting position. According to the method, the to-be-unloaded hydraulic support moves out and is pushed into the same loading and unloading channel, the work amount of the loading and unloading channel is reduced, the manual adjusting link is avoided, and the replacement efficiency is remarkably improved; coal pillar reservation is avoided, and therefore the loss rate of the raw coal is reduced; and the construction safety is improved.
Description
technical field [0001] The invention belongs to the field of coal mining, in particular to a hydraulic support replacement method for a fully mechanized mining face with a large dip angle. Background technique [0002] The fully mechanized mining face with a large dip angle refers to the comprehensive mechanized mining face with a coal seam dip angle of 35°-55°. Affected by the continental deposition of the coal seam, the thickness of the coal seam varies greatly, but the coal quality is good, mainly coking coal, Lean coal, etc., has high economic value. Therefore, in order to improve the recovery rate of resources, fully mechanized mining equipment must be replaced one or more times to realize the mining of coal seams with different thicknesses. The replacement of hydraulic supports is very important. Hydraulic supports The replacement refers to withdrawing the hydraulic support that cannot meet the needs of coal seam mining, and installing the hydraulic support that can me...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E21D23/04E21D23/03E21D23/16E21D21/00
CPCE21D23/04E21D23/03E21D23/16E21D21/00Y02W30/56
Inventor 林勇杨磷黄正平潘永刚李虎梁国栋王勇王刚侯李锋庞仁则刘祥
Owner 四川川煤华荣能源有限责任公司