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Coagulation type electrostatic dust removing method and its equipment

A technology of electrostatic dust removal and coagulation method, which is applied in electrostatic effect separation, chemical instruments and methods, solid separation, etc., can solve the problems of large volume of dust collector and great influence on dust removal efficiency and performance, and achieve small size, high efficiency and economy Good results

Inactive Publication Date: 2003-07-02
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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Problems solved by technology

[0003] The object of the present invention is to propose a new cohesive electrostatic dust removal method that can make the charged dust condense into large dust particles and be easily separated from the gas, and a dust removal device using the method to solve the problem of traditional electrostatic dust removal methods. The size of the dust collector in the dust removal device is too large, and the dust removal efficiency is greatly affected by the dust electrical performance.

Method used

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  • Coagulation type electrostatic dust removing method and its equipment
  • Coagulation type electrostatic dust removing method and its equipment

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Embodiment Construction

[0013] The structure of the embodiment of the cohesive electrostatic precipitator of the present invention is shown in Fig. 1 . It has a positive charge electric field channel 1, a load electric field channel 2 and a gas-solid separation channel 3, the inlet end of the gas-solid separation channel 3, the positive charge channel 1 and the outlet end of the load electric channel 2 are connected in a three-way manner, Negatively charged electrode plates 11 and positively charged corona wires 12 are provided in the positively charged electric field channel 1, and positively charged electrode plates 21 and negatively charged corona wires are provided in the load electric field channel 2. 22. The gas-solid separation channel 3 is a flue gas channel, and 5 is the exhaust port of the flue gas channel. A gas-solid separation cover 31 with a louvered grille structure is arranged in the flue gas channel as a In the inertial separation zone 4, the gas-solid separation cover is in the shap...

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Abstract

A coagulation-type electrostatic precipitation method and its apparatus features that the small charged dust particles are coagulated to become big ones for easily removing them. The dust-contained airflow is divided into two streams. One is electrified by positive charges and another by negative charges. After they are conveyed together, the particles with different polarities are coagulated and then they are separated out by the inertial separation method. Its advantages are small size device and high efficiency.

Description

technical field [0001] The invention belongs to an electrostatic dust removal method and a dust removal device designed using the method. Background technique [0002] The basic working method of the currently used electrostatic precipitator is to make the charged dust particles be adsorbed to the heteroelectric dust collecting pole to realize dust removal. This method has many disadvantages. For example, in order to make the dust particles adsorb on the dust collecting plate stably, the flow velocity of the dust-laden airflow should not be too high, generally not exceeding 1-1.3 m / s. A direct result of such a low flow rate is that the electrostatic precipitator must have a large flow area, resulting in a large volume and high cost of the electrostatic precipitator, which hinders its wide application. Secondly, the dust collector can only effectively collect dust with suitable electrical properties. If the specific resistance of the dust is too low, it will easily cause se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03C3/017
Inventor 陈恩鉴何立波林伯川
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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