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Drilling equipment for large-aperture drilling construction in coal seams

A large-diameter, coal seam technology, applied in drilling equipment and methods, drilling equipment, drill bits, etc., can solve the problems of inability to drill large-diameter holes and low drilling efficiency, and achieve higher drilling efficiency and higher drilling depth. , to ensure the effect of the success rate

Active Publication Date: 2016-08-24
HENAN TIEFULAI EQUIP MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the drilling equipment in the prior art cannot drill large-diameter holes and the drilling efficiency is low, the present invention provides a drilling equipment for large-diameter drilling construction in coal seams

Method used

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  • Drilling equipment for large-aperture drilling construction in coal seams
  • Drilling equipment for large-aperture drilling construction in coal seams
  • Drilling equipment for large-aperture drilling construction in coal seams

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Embodiment Construction

[0023] As shown in the figure, a kind of drilling equipment for large-aperture drilling in coal seams. The drilling equipment includes two parts, namely, a large-torque high-speed drilling rig and a drilling tool for large-aperture drilling in coal seams. The high-torque high-speed The drilling rig is composed of a crawler-type traveling mechanism, a supporting and fixing mechanism, a feeding mechanism, a power output device, a clamping mechanism and an operation console. The crawler-type walking mechanism can make the mobile drilling rig convenient and quick, and the drilling rig can be moved forward, backward and turned only by controlling the operating handle; the supporting and fixing mechanism plays the role of fixing the drilling rig when drilling, and the supporting and fixing mechanism is equipped with an oil cylinder. When the drilling rig is working, the oil cylinder is used to stretch out to withstand the rocks on the top plate and the bottom plate, and the drilling ...

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Abstract

Drilling equipment for coal seam large-diameter boring construction comprises a drilling tool and a drilling machine. The drilling machine comprises a walking mechanism, a power output device, a feeding mechanism, a clamping mechanism and an operation console, wherein the power output device controls the drilling tool to rotate. The walking mechanism is provided with the feeding mechanism driving the drilling tool to horizontally move, the power output device and the clamping mechanism are arranged on the feeding mechanism, and the drilling tool is connected with the power output device through the clamping mechanism so as to be driven to drill. By means of the drilling equipment, large holes with the diameter lager than 150 mm and with the length larger than 50 m can be drilled in the same coal seam, gas drainage efficiency is improved, a bottom suction roadway does not need to be tunneled, and coal mining cost is lowered.

Description

technical field [0001] The invention relates to drilling equipment used in the field of coal mining, in particular to a drilling equipment for drilling large-diameter coal seams. Background technique [0002] There is pressure in the geological strata, and the hollowing phenomenon occurs in the strata during coal mining, causing the pressure to release rapidly, which is manifested as rock burst. Rockburst, also known as rockburst, is the sudden release of energy accumulated in the coal and rock mass around the mine and stope, and an explosive accident occurs in the shaft, and the power generated will throw the coal rock to the roadway, and at the same time make a strong sound, causing the coal and rock mass Vibration and damage to coal and rock mass, damage to supports and equipment, casualties, damage to some roadways, etc. In addition to damaging roadways, supports and equipment, rock bursts can also cause other mine disasters, especially gas, coal dust explosions, fires ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B7/02E21B3/02E21B17/22E21B10/43E21B19/10
CPCE21B7/02E21B10/44E21B10/54E21B17/00E21B17/22E21B19/08E21B19/10
Inventor 武国胜黄庆显王民涛徐云辉栗燕飞
Owner HENAN TIEFULAI EQUIP MFG CO LTD
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