Coal mine ventilation air methane oxidation system

A coal mine and ontology technology, applied in the field of coal mine exhaust air oxidation system, can solve problems such as polluting energy and waste, and achieve the effects of reducing exhaust air loss, short start-up time, and stable operation

Inactive Publication Date: 2014-07-23
SHANXI LUAN ENVIRONMENTAL ENERGY DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the method of direct discharge is basically chosen, and direct discharge will cause huge pollution and energy waste

Method used

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  • Coal mine ventilation air methane oxidation system
  • Coal mine ventilation air methane oxidation system

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Embodiment Construction

[0026] The detailed structure of the present invention is illustrated in conjunction with examples.

[0027] Such as figure 1 and figure 2 As shown, a coal mine exhaust air oxidation system includes a gas distribution device, a device body, a reversing device, a starting device and a measurement and control device; the gas distribution device includes an air pipeline, a natural gas pipeline and a mixer, and the described The input end of the air pipeline is connected with the air filter 2, and the air filter 2 adopts a BC type plate type primary air filter, and the air pipeline is provided with a vortex flowmeter 3, and the vortex flowmeter The flowmeter 3 adopts a LUGB type intelligent vortex flowmeter, the output ends of the natural gas pipeline and the air pipeline are connected to the mixer, and the air flow is adjusted using a butterfly valve according to the display of the vortex flowmeter 3. The natural gas The pipe is provided with a flashback preventer 6, and the f...

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Abstract

The invention aims to provide a coal mine ventilation air methane oxidation system characterized by stable operation, short system startup time and high heat recovery efficiency. Through matching combination of a gas distribution device, a device body, a reversing device, an actuating device and a measuring and control device, especially the reversing device composed of two three-way valves, the ventilation air methane loss in the pipeline is effectively reduced. The whole system operation, which includes switching of the reversing device, flow measurement and adjustment, pressure and temperature measurement, methane concentration monitoring and feedback, is all carried out under monitoring of the monitoring device. The monitoring and measurement data can be acquired in real time, and a ventilation air methane oxidation operation adjustment scheme can be worked out timely, thus realizing the effects of energy saving and emission reduction. The coal mine ventilation air methane oxidation system provided by the invention has the advantages of stable operation, short system startup time, and high heat recovery efficiency.

Description

technical field [0001] The invention belongs to the technical field of coal mine exhaust air oxidation, in particular to a coal mine exhaust air oxidation system. Background technique [0002] Coal is an important primary energy source. During the formation of coal, coalbed methane, mainly methane, is also associated. Due to the different mining methods of coalbed methane, its methane content is significantly different. [0003] If the coal mine gas with a methane content of more than 80% is extracted through ground drilling, this gas is similar to natural gas. This gas can be used in natural gas power generation equipment for power generation or civil materials. The utilization technology is relatively simple and mature. Gas release system and ground gas transmission system, producing high-concentration gas with methane concentration ranging from 3% to 80%, due to the risk of explosion, its application is generally limited to the part above 30%, and the utilization of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/74B01D53/72E21F17/18
Inventor 刘宝金吴祥云朱朝辉张金光张文平黄文科吴治厚李华栋
Owner SHANXI LUAN ENVIRONMENTAL ENERGY DEV
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