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Automatic micro-coal extraction system suitable for model test

A model test and miniature technology, applied in ground mining, driving devices, earthwork drilling and mining, etc., can solve problems such as low degree of automation, inability to truly simulate coal mining conditions, and inability to truly reflect the process of overlying strata rupture and collapse. The effect of high degree of automation

Inactive Publication Date: 2014-12-10
SHANDONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The automation degree of the test device is not high, the coal mining advance needs to be done manually, and the uniformity of the speed cannot be guaranteed, and the mining process is mined from the outside to the inside, which cannot truly simulate the actual coal mining situation on site, and cannot truly reflect the rupture and collapse of the overlying strata process

Method used

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  • Automatic micro-coal extraction system suitable for model test
  • Automatic micro-coal extraction system suitable for model test
  • Automatic micro-coal extraction system suitable for model test

Examples

Experimental program
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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0039] Such as Figure 1-Figure 8As shown, the automatic micro-mining system suitable for model tests, including the embedded cutting hole 1, C-shaped hood 2, shearer drum 3, drum support 4, ventilation pipe 5, bevel gear 6, bevel gear rotating bearing 7. Spline shaft 8, rotating shaft 9, mining upward trough 10, mining downward trough 11, rotating shaft support bearing 12, rotating shaft jacket 13, stepper motor 14, rotating shaft restraining roller 15, height adjustable bracket 16 , hydraulic support leg 17, roller bracket 18, rotating motor 19, rack 20, gear 21, bracket moving roller 22, restraining roller bearing 23, stepper motor fixing bracket 24, bracket reinforcement diagonal brace 25, air vent 26, mining Blanking material 27, rubber windshield pad 28, sealing gasket 29, inlet and outlet air holes 30, air duct connection flange 31, air duct 32,...

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Abstract

The invention discloses an automatic micro-coal extraction system suitable for a model test. The system comprises a height-adjustable bracket, wherein a rotary motor is arranged at one end of the bracket; a stepping motor and a hydraulic support leg are arranged on the bracket; a coal extraction device is arranged at the other end of the bracket; the rotary motor and the stepping motor are both connected with the coal extraction device; and the stepping motor, the rotary motor and the hydraulic support leg are connected with an automatic control system respectively. The system disclosed by the invention is easy to operate and has high degree of automation; and in coal seam stoping, upper and lower gate roads are excavated, an open-off cut is formed, and excavation is performed outward from the open-off cut in a concealed manner to really simulate the coal seam stoping process.

Description

technical field [0001] The invention relates to a micro-coal mining machine used in a simulation test of co-mining coal and gas without coal pillars, in particular to an automatic micro-coal mining system suitable for model tests. Background technique [0002] After the coal mine is mined, the overlying strata ruptures, forming a stress relief zone and a stratum fracture zone around the stope, thereby increasing the gas permeability between the coal mass and the stratum, and the gas in the coal mass will be released and migrate in the fracture zone. For high gas or coal and gas outburst coal seams, in order to avoid accidents such as gas explosions, it is generally necessary to carry out pre-mining pre-drainage and gas drainage and treatment during the mining process to reduce the gas content in the coal seam. In order to improve the efficiency of gas drainage, It is necessary to study the migration law of gas in the mining process. At present, the research on the law of ga...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/16E21C25/06E21C31/02
Inventor 王汉鹏李术才薛俊华袁亮李建明余国锋吴志坚张庆贺
Owner SHANDONG UNIV