Coal seam fracture surface device, gas drainage device and method for analyzable gas drainage

A gas drainage and coal seam technology is applied in the fields of coal seam section devices and gas drainage devices to achieve the effects of improving efficiency, increasing the moisture content of coal seams and increasing the permeability of coal seams

Pending Publication Date: 2019-09-17
FEICHENG BAIZHUANG COAL MINE
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Problems solved by technology

[0003] The existing main technical means to increase the analyzable gas content of coal seams are to increase the moisture content of coal seams and increase the air permeability of coal seams. From the perspective of gas drainage practice, the two methods of increasing the water content of coal seams and increasing the air permeability of coal seams play a role effect, has reached its limit

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  • Coal seam fracture surface device, gas drainage device and method for analyzable gas drainage
  • Coal seam fracture surface device, gas drainage device and method for analyzable gas drainage
  • Coal seam fracture surface device, gas drainage device and method for analyzable gas drainage

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Embodiment Construction

[0034] According to the review guidelines, terms such as "having", "comprising" and "including" used in the present invention should be understood as not deriving the presence or addition of one or more other elements or combinations thereof.

[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not b...

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Abstract

The invention discloses a coal seam fracture surface device, a gas drainage device and method for analyzable gas drainage. The coal seam coal seam fracture surface device includes a fifth hole channel (5) and a hole channel set, wherein the fifth hole channel (5) is arranged in the middle of a coal seam fracture surface and used for gas extraction, and the hole channel set is arranged around the fifth hole channel (5) and used for heating a gas release coal seam. Through the fifth hole channel (5), the gas extraction in the coal seam is realized, through the hole channel set, the gas release coal seam is heated, improving of coal seam moisture content and coal seam permeability are no longer used, and therefore the efficiency of gas drainage is improved.

Description

technical field [0001] The invention relates to a coal seam section device, a gas drainage device and a method, in particular to a coal seam section device, a gas drainage device and a method for analysable gas drainage. Background technique [0002] Gas drainage is an essential means of gas control in high-gas mines, and to achieve the goal of "drainage up to standard" in the "gas control sixteen characters" system, increasing the analyzable gas content of coal seams is to increase the amount of gas drainage in coal seams. It is a necessary condition to achieve the drainage standard. Experiments show that the free gas storage in the existing coal seam only accounts for 10-15% of the total coal seam gas content, and the adsorbed gas storage accounts for 85-90% of the total coal seam gas content. The amount of gas adsorbed in coal mainly depends on five main factors, such as the degree of coalification and metamorphism, moisture in coal, gas properties, gas pressure and adsor...

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Application Information

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IPC IPC(8): E21F7/00E21B43/26E21B43/24E21B43/30
CPCE21F7/00E21B43/26E21B43/24E21B43/30
Inventor 李刚张维勇戴月升任国顺李伟肖立军徐志超杜现海
Owner FEICHENG BAIZHUANG COAL MINE
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