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Method for removal of inhalable particles in coal

A particle removal technology, applied in chemical instruments and methods, magnetic separation, solid separation, etc., can solve the problem of coal-fired inhalable particles cannot be removed, achieve small footprint, reduce investment and operating costs, equipment less effect

Inactive Publication Date: 2007-11-14
SOUTHEAST UNIV
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  • Abstract
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Problems solved by technology

[0007] Technical problem: The purpose of this invention is to provide a method for removing inhalable particulate matter from coal-fired coal, which can effectively control the discharge of inhalable particulate matter from coal-fired coal, reduce environmental pollution, eliminate harm to the human body, and solve the problem of traditional industrial dust removal. The problem that the device is basically unable to remove inhalable particulate matter from coal combustion

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  • Method for removal of inhalable particles in coal

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Embodiment Construction

[0019] The present invention is described below in conjunction with accompanying drawing:

[0020] Fig. 1 is the process flow of the present invention, before the dust-laden flue gas that coal combustion produces enters high-gradient magnetic field magnetic seed gathering and trapping device, adopts fluidized bed aerosol generating device to aerosol ferromagnetic particles with soft magnetic properties After melting, it is passed into the flue gas, and after being fully mixed, it enters the high-gradient magnetic field magnetic seed coalescence device. Under the action of a high gradient magnetic field, the magnetic seed particles and fly ash particles collide and coalesce, the particle size grows, and are finally captured by the magnetic medium. The flue gas from the removal of particulate matter is directly evacuated. During the collection of particulate matter, the intermittent electromagnetic vibration method is used to vibrate the particulate matter adsorbed on the surfa...

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Abstract

The present invention relates to a method for removing inhalable particulate matter from firing coal. Said method is characterized by that it includes the following steps: utilizing fluidized-bed aerosol generator to make magnetic seed with soft magnetic feature be aerocolloidized and be added into the dust-bearing flue gas of fired coal, then introducing the dust-bearing flue gas in which the magnetic seed is added into a high-gradient magnetic seed gathering trapping device, making the magnetic seed be combined fly ash inhalable particulate matter and can be adsorbed on the surface of magnetic medium, so that the flue gas can be cleaned and can be discharged to the exterior.

Description

technical field [0001] The invention relates to a process for removing inhalable particulate matter from burning coal, and belongs to the technical field of environmental pollution prevention and clean coal combustion. Background technique [0002] Atmospheric inhalable particulate matter has become a prominent problem of atmospheric environmental pollution, and it has increasingly attracted great attention from all countries in the world. It has been recognized that atmospheric inhalable particulate matter is a serious hazard to human health, SO in the atmosphere 2 , NO x The content of pollutants such as CO and CO is not closely related to human mortality, while inhalable particulate matter has become the main reason for the increase in human mortality. At the same time, atmospheric particulate matter is also an important factor that causes major problems such as reduced atmospheric visibility, acid rain, global climate change, smog events, and ozone layer destruction. ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03C1/01
Inventor 赵长遂李永旺鲁端峰吴新
Owner SOUTHEAST UNIV