A portable drilling device for crossing faults in a fully mechanized mining face and its application method

Abstract

Disclosed are a portable drilling device for enabling a fully mechanized coal mining face to cross a fault and a using method. The device comprises a drilling machine, a drilling machine mounting frame, a vertical column and a trolley. The trolley is located on a scraper conveyer. One end of the vertical column is connected to the trolley, and the other end of the vertical column is matched with a hydraulic support in an abutting and contact mode. The drilling machine mounting frame is connected to the vertical column, and the drilling machine is installed on the drilling machine mounting frame. The method includes the steps that the vertical column is vertically erected and fixed; the height, level and pitching swing angle of the drilling machine are adjusted; an abutting oil cylinder is controlled to make an abutting head abut against the hydraulic support; main and auxiliary stabilizing supporting legs conduct supporting; an anti-rollover clamping plate is shifted into a middle groove of the scraper conveyer; the drilling machine is started, driving oil cylinders act, and drilling operation in the current drilling position is completed; a drill pipe of the drilling machine is retreated out of a drilled hole; the position of the drilling machine is readjusted, and drilling operation in other drilling positions is completed; the anti-rollover clamping plate is retreated out, the main and auxiliary stabilizing supporting legs get out of the supporting state, and the abutting oil cylinder retracts; and the trolley is pushed, the drilling device is moved to other drilling stations, and remaining drilling operation is completed.

Description

technical field [0001] The invention belongs to the technical field of coal mine machinery, and in particular relates to a portable drilling device for crossing a fault in a fully mechanized mining face and a use method thereof. Background technique [0002] At present, in the process of underground coal mining, due to the complexity of coal seam occurrence conditions, there are often several faults of different sizes in the coal seam. At present, there are two treatment methods for hindering the normal advance of the fully mechanized mining face. The first is to bypass the fault and re-advance, and the second is to force the advance by blasting the fault. When a large fault is encountered, the first treatment method can be adopted , when a small fault is encountered, the second processing method is often adopted. [0003] When adopting the method of forcefully pushing through the fault by blasting, it is first necessary to dismantle and transfer part of the fully mechanize...

AI Technical Summary

Problems solved by technology

Before blasting a fault, it is necessary to process a number of charging holes on the fault rock mass. These charging holes are all completed by manually operating a pneumatic rock bolt drill. The drilling efficiency is very low, and the labor intensity of the workers is particularly high. A single pass through the fault process will take a lot of time, which seriously affects the overall coal mining efficiency

Furthermore, due to the inefficient way of crossing faults, the mechanized advantages of fully mechanized mining equipment cannot be fully utilized

[0004] At this stage, technicians are eager to improve the efficiency of crossing faults, especially the drilling efficiency in the process of crossing faults. For this reason, it is necessary to change the traditional manual drilling method of pneumatic rock bolters to realize mechanized drilling. The personnel originally wanted to introduce the traditional mechanized automatic rock drill into the process of crossing the fault, but limited by the narrow space of the fully mechanized mining face, the existing mechanized automatic rock drill is not suitable for use in the fully mechanized mining face due to its huge size. condition

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