Technology and equipment for treating local gas accumulation through air multiplication principle
An air multiplication and gas technology, applied in gas emission, safety devices, mining equipment, etc., can solve the problems of high cost and unsatisfactory gas effect, and achieve the effect of high safety, long adjustment direction and range, and reduced workload.
Inactive Publication Date: 2015-07-22
CHINA UNIV OF MINING & TECH (BEIJING)
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[0006] The purpose of the present invention is to provide a new technology and equipment for treating gas accumulation in upper corners and return air lanes, so as to overcome the problems of unsatisfactory gas accumulation and high cost of traditional devices
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[0013] according to figure 1 As shown, in the mining face, the upper corner, return airway and other areas are the areas where gas is easy to accumulate in the working face. The invention mainly uses an underground air pipe as the power to solve the gas accumulated in the upper corner of the mining working face, the return air lane and the like, and realizes a safe, efficient and economical gas processing method.
[0014] according to figure 2 , the specific implementation of the invention is as follows: First, a three-way valve needs to be installed in the air duct in the gas accumulation area, and the air inlet is connected to the three-way valve through the pipeline that comes with the device, so that the air flow in the air duct enters the equipment, and the air flow After entering the equipment, the air flow speed and air volume are increased through its own system, so that the air flow is ejected from the air outlet ring at a higher speed, and the gas accumulated in t...
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The invention discloses technology and equipment for treating local gas accumulation of a coal mine working face through an air multiplication principle. High-pressure air flow flowing from an annular fracture with the width being only 1.3 mm in the inner side of a machine body is used for blowing gas accumulated in regions such as an upper corner. The equipment is composed of an air inlet, an inner rotation device, an air outflow ring adjusting device and an air outflow ring. The technology specifically includes the steps that clean air flow in a mine pressure ventilation pipeline is used as power, gas is led to the equipment according to the injection principle, the air flow is conveyed to the air outflow ring through inner rotary fan blades, and the purpose that the concentration of the accumulated gas is reduced is achieved through the effective air flow output by the air outflow ring. By the adoption of the equipment, the size and the direction of the air flow can be adjusted according to the actual condition, and the regions are completely covered; about 10 to 15 times of air around can be driven to flow through the air multiplication principle, a negative pressure region is generated behind the air outflow ring through the high-speed moving air jet flow, and surrounding air is sucked. The equipment can be installed in the gas accumulated region positions such as the upper corner and an air return way, the accumulated gas is effectively blown away, and safe and efficient production of a coal mine is guaranteed. The technology and equipment are suitable for being used and popularized in underground coal mine mining.
Description
Technical field [0001] The present invention involves a technology and equipment that uses the principle of air multiplication to handle gas accumulation, which is the field of coal mine security applications. Background technique [0002] The coal mining working surface on the coal mining surface is used as a working surface romance and the leakage point of the leakage area of the picked area, forming a romantic vortex area, and under the influence of the pressure difference between the working surface and the closed area of the empty area.The angle area flows, which causes a large concentration of gas in the area.And with the effects of romance, the gas in the air area and the upper horn areas gradually dispersed along the romance to Huifeng Lane, which will cause a higher concentration of the gas alley, the safe recovery of the coal mine, the health belt of the coal miners' health beltCome great threat.Therefore, it is urgent to adopt a new method to gather corner gas and Huif...
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IPC IPC(8): E21F7/00
CPCE21F7/00E21F1/006
Inventor 聂百胜李祥春孟筠青卢红奇
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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