Method and equipment for pneumatically conveying and filling gangue in coal mine well

A technology of pneumatic conveying and pneumatic conveying pipelines, which is applied to mining equipment, filling materials, underground transportation, etc., can solve the problems of large power consumption and pipeline wear, and achieve the effects of large power consumption, convenient operation and environmental friendliness

Inactive Publication Date: 2013-09-25
CHINA UNIV OF MINING & TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] Technical problem: The purpose of the present invention is to overcome the deficiencies in the prior art and provide a method and equipment for pneumatically conveying gangue in coal mines to solve the problems of large power consumption and serious pipeline wear in underground coal mine gangue pneumatic conveying

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  • Method and equipment for pneumatically conveying and filling gangue in coal mine well
  • Method and equipment for pneumatically conveying and filling gangue in coal mine well
  • Method and equipment for pneumatically conveying and filling gangue in coal mine well

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Embodiment Construction

[0019] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0020] In the coal mine gangue pneumatic conveying method of the present invention, firstly, the air compressor 1, the gas storage tank 2, the feeding device 4 and the pneumatic conveying leading to the goaf and the "three-down" coal-pressing filling area must be sequentially arranged and connected underground Pipeline 5; use the air compressor 1 to inflate the gas storage tank 2, stop the inflation after the gas in the gas storage tank 2 reaches the set working pressure; when it is necessary to fill the material, open the control valve of the gas storage tank 2, and the The compressed air in the gas tank 2 leads to the pneumatic conveying pipeline 5 through the high-pressure air pipe 3; after the flow field in the pneumatic conveying pipeline 5 is stable, the feeding device 4 is started, and the material particles are sprayed into the pneumatic conveying pi...

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Abstract

The invention discloses a method and equipment for pneumatically conveying and filling gangue in a coal mine well. An air compressor, a gasholder, a high pressure air pipe, a feeding device and a pneumatic conveying pipe are combined and matched, and in the coal mine well, gangue material is conveyed to filling areas such as a goaf and coal areas under buildings, railways and water. Particles are uniformly distributed via a swirl generating tube, the axial velocity of the particles is increased by over 60 percent compared with that of a horizontal straight pipe, and the ability of a system to convey the particles of the gangue is greatly improved via the swirl generating tube; the particles are conveyed via a pipeline, the system is sealed, less dust floats and escapes, and the environment is protected; the pipeline for conveying can be flexibly arranged, equipment process and configuration are simplified, and problems of large power consumption and serious pipeline abrasion of the pneumatic conveying of the gangue in the coal mine well are solved. The equipment is simple in structure, convenient to operate and good in use effect.

Description

technical field [0001] The invention relates to a method and equipment for pneumatically conveying gangue in coal mines, and is especially suitable for conveying gangue in mines. Background technique [0002] my country is a large coal producing and consuming country in the world. Coal accounts for the largest proportion of my country's primary energy consumption, and gangue is an accompaniment to coal mining, resulting in a large amount of gangue accumulation, occupying land resources, and the gobs and subsidence areas are constantly expanding. . Therefore, the existence of gangue dumps has had a serious impact on the mining environment and residents' lives. At the same time, my country's "three downs" (under buildings, under railways, and under water bodies) have a backlog of a large amount of coal resources, with extremely low mining rates and low working efficiency, resulting in a huge waste of resources. In recent years, the coal industry has been competing to develop ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F13/00E21F15/08E21F15/10
Inventor 刘送永李建平杨道龙郑加强郑克洪刘晓辉刘增辉
Owner CHINA UNIV OF MINING & TECH
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