Efficient coaxial air curtain dedusting system for coal mine

A dust removal system and high-efficiency technology, which is applied in dust prevention, mining equipment, safety devices, etc., can solve the problems of high content of toxic gas, large dust in operation flour, and dispersion, so as to achieve outstanding energy saving effect, prevent dust from spreading, and remove dust The effect of improving efficiency

Inactive Publication Date: 2015-05-13
安徽惠尔矿用设备有限公司
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Problems solved by technology

However, in the process of coal mining, the depth of the mine is often hundreds of meters or even thousands of meters, and the content of foreign gas inside is low, and the content of toxic gas is high. Therefore, it is necessary to blow fresh air into the mine and discharge the toxic gas and dust in the mine. Existing mine dust removal mostly uses high-power dust removal fans and air ducts for dust removal and air supply. Often 45K

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  • Efficient coaxial air curtain dedusting system for coal mine
  • Efficient coaxial air curtain dedusting system for coal mine

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[0013] A high-efficiency coaxial air curtain dust removal system for coal mines, comprising an inner air duct 3 and an outer air duct 2, the inner air duct 3 is a horn-shaped opening, and the end of the inner air duct 3 with a smaller diameter is concentric with the outer air duct 2 and does not touch the ground. It is sleeved in the outer air duct 2, and the end of the inner air duct 3 sleeved in the outer air duct is closed. The inner diameter of the outer air duct 2 is larger than the diameter of the smaller end of the inner air duct and smaller than the diameter of the larger end of the inner air duct. A compressor 1 is arranged in the outer air duct 2 , an air outlet duct 8 is arranged on the side wall of the inner air duct 3 , and an exhaust fan 5 is arranged in the air outlet duct 8 .

[0014] Preferably, the inner air duct 3 of the present invention is a cylindrical air duct at one end and a trumpet-shaped opening at the other end. The end of the cylindrical air duct is...

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Abstract

The invention relates to an efficient coaxial air curtain dedusting system for a coal mine. The efficient coaxial air curtain dedusting system for the coal mine comprises an inner air cylinder and an outer air cylinder and is characterized in that the inner air cylinder is a horn-shaped opening, the end, with a small diameter, of the inner air cylinder is concentric with the outer air cylinder and is sleeved with the outer air cylinder in a non-contact mode, the end, sleeved with the outer air cylinder, of the inner air cylinder is closed, the inner diameter of the outer air cylinder is larger than the diameter of the end, with the small diameter, of the inner air cylinder and is smaller than the diameter of the end, with the large diameter, of the inner air cylinder, a pressure fan is arranged in the outer air cylinder, an air outlet pipe is arranged on the side wall of the inner air cylinder, and an exhaust fan is arranged in the air outlet pipe. The efficient coaxial air curtain dedusting system for the coal mine is high in dedusting efficiency and small in power consumption.

Description

technical field [0001] The invention belongs to the field of mine equipment, and in particular relates to a high-efficiency coaxial air curtain dust removal system for coal mines. Background technique [0002] Most of the coal seams are far from the surface, so surface mining cannot be used. Underground mining accounts for 60% of the world's coal mine production. In pits, the room-and-pillar method is often used to advance through the coal seam, with beams and columns used to support the pit. However, in the process of coal mining, the depth of the mine is often hundreds of meters or even thousands of meters, and the content of foreign gas inside is low, and the content of toxic gas is high. Therefore, it is necessary to blow fresh air into the mine and discharge the toxic gas and dust in the mine. Existing mine dust removal mostly uses high-power dust removal fans and air ducts for dust removal and air supply. Often 45KW*2 dust removal fans are used, but the power of th...

Claims

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Application Information

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IPC IPC(8): E21F5/20E21F5/02
CPCE21F5/20E21F5/02
Inventor 尹六六童碧李亚民尹翰苑王国庆徐宝华
Owner 安徽惠尔矿用设备有限公司
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