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Method for recycling dusty waste gas

A technology for recovery and treatment of waste gas, applied in separation methods, chemical instruments and methods, separation of dispersed particles, etc., can solve the problem of low dust absorption rate, achieve the effects of reducing corrosion resistance requirements, reducing corrosion, and saving production costs

Inactive Publication Date: 2014-10-08
HAWK SHANGHAI ENVIRONMENTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The absorption rate of finer dust is not high

Method used

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  • Method for recycling dusty waste gas
  • Method for recycling dusty waste gas
  • Method for recycling dusty waste gas

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Experimental program
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Embodiment Construction

[0043] The present invention is described in detail below in conjunction with accompanying drawing:

[0044] Such as figure 1 with 2 As shown, the recovery and treatment device for dusty waste gas includes a gas-solid separation device 1 . The gas-solid separation device 1 is used for separating dust and gas in the dust-laden waste gas, and collecting the dust. The separation efficiency of the gas-solid separation device 1 (the SiO collected by the gas-solid separation device 1 per unit time 2 The dust weight accounts for the SiO2 entering the gas-solid separation device 1 per unit time 2 Dust weight percentage) ≥ 99.5%. The gas-solid separation device 1 of the present invention is preferably a bag-type gas-solid separator. The dust in the dusty exhaust gas is intercepted by the filter bag 11 in the bag-type gas-solid separator, and only the gas is allowed to pass through. When the dust on the filter bag 11 is deposited to a certain amount, the compressed air is sprayed ...

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Abstract

The invention discloses a method for recycling dusty waste gas. The method for recycling the dusty waste gas is characterized by comprising the following steps: firstly introducing the dusty waste gas into a gas-solid separation device, separating dust from gas in the dusty waste gas by using the gas-solid separation device, and collecting the dust; and subsequently introducing the waste gas discharged by the gas-solid separation device into a gas absorbing device, and absorbing the gas in the dusty waste gas through the gas absorbing device. The method for recycling the dusty waste gas is simple and reliable in process; by separating the dust and the gas in the dusty waste gas and then independently recycling the dust and the gas, the corrosion of the device can be reduced, so that the anti-corrosion requirement on the device and the maintenance times of the device can be reduced, and the production cost can be saved.

Description

technical field [0001] The invention relates to a recovery and treatment method of dust-containing waste gas, and is particularly suitable for the recovery and treatment device and treatment method of dust-containing waste gas generated in the production process of optical fiber preform rods. Background technique [0002] Optical fiber preforms usually use PCVD (plasma chemical vapor deposition) - plasma chemical vapor deposition process, MCVD (modified chemical vapor deposition) - improved chemical vapor deposition process, VAD (vapour phase axial deposition) - vapor phase axial deposition Process, OVD (Outside Vapor Deposition) - external vapor deposition process, etc. for manufacturing. Among them, due to the advantages of high deposition rate, large preform volume, low raw material purity requirements, and high productivity, the OVD process has gained more and more attention and application in preform, especially cladding manufacturing. [0003] In the OVD process, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/04B01D53/18
Inventor 吴涛
Owner HAWK SHANGHAI ENVIRONMENTAL TECH
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