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Coal mill spiral vortex flow coal powder collection device

A pulverized coal collection and helical technology, which is applied in grain processing and other fields, can solve problems such as the inability to meet the high efficiency utilization of fly ash, and achieve the effect of simple structure, strong practicability, and inhibition of secondary back-mixing

Inactive Publication Date: 2015-12-09
华能桐乡燃机热电有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing technologies including the above-mentioned patents have not fully utilized fly ash to serve the social economy, and are far from satisfying the situation of high-efficiency utilization of fly ash

Method used

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  • Coal mill spiral vortex flow coal powder collection device

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with accompanying drawing:

[0017] Spiral swirling coal powder collection device for coal mill, including cone 1, gas outlet pipe 2, feed pipe 3, reverse spiral channel 4, forward spiral channel 5, vortex tube 6, spherical collection chamber 7, and pressure stabilizing tube 8 , Backflow check valve 9, collection port 10.

[0018] as attached figure 1 As shown, wherein the cone 1 is provided with a reverse spiral channel 4, a forward spiral channel 5 and a vortex tube 6 sequentially from top to bottom; the upper end of the reverse spiral channel 4 is connected to the air outlet 2, and its lower end is connected to the vortex tube 6; The spiral channel 5 is connected with the feed port 3; the lower end of the cone 1 is provided with a spherical collection chamber 7; the spherical collection chamber 7 is connected with the feed pipe 3 through a pressure regulator tube 8, and a counter flow Check valve ...

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Abstract

The present invention belongs to the technical field of coal mill coal powder collection equipment, and in particular relates to a coal mill spiral vortex flow coal powder collection device mainly comprising a cone (1), an air outlet pipe (2) located on the upper end of the cone (1), and a feed tube (3) located at one side of the cone (1), a trans-spiral channel (4), a cis-spiral channel (5) and a vortex tube (6) are arranged from top to down in turn in the cone (1); the upper end of the trans-spiral channel (4) is connected with the air outlet pipe (2), the lower end of the trans-spiral channel (4) is connected with the vortex tube (6), the cis-spiral channel (5) is connected with the feed tube (3), a spherical collection chamber (7) is arranged on the lower end of the cone (1), the spherical collection chamber (7) is connected with the feed tube (3) by a voltage-regulator tube (8), the voltage-regulator tube (8) is provided with a backflow check valve (9), the coal mill spiral vortex flow coal powder collection device is simple in structure, strongly practical, and can collect coal powder and reduce secondary back-mixing of the coal powder.

Description

technical field [0001] The invention belongs to the technical field of pulverized coal collection equipment for coal pulverizers, and in particular relates to a helical swirl type coal pulverized collection device for coal pulverizers. Background technique [0002] Fly ash is the fine ash collected from the flue gas after coal combustion, and is the main solid waste discharged from coal-fired power plants; while high-carbon cinder is mainly due to the coal pressurized gasification technology that has emerged in recent years. It belongs to a mixture of fine particles containing a certain amount of carbon. With the development of the electric power industry, the discharge of fly ash from coal-fired power plants is increasing year by year. If left untreated, it will cause great harm to the environment, human body and organisms. At present, the cinder produced by coal burning in our country is about 400 million tons every year, and the output will reach 570 million tons by the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C23/00
Inventor 邵林芳刘金生任强海阮国荣张震王晖邹荣华蒋国平
Owner 华能桐乡燃机热电有限责任公司