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Adsorption method for purifying asphalt fume and practical purifier

A technology for asphalt flue gas and purifier, which is applied in chemical instruments and methods, separation methods, and filtration of dispersed particles, etc., can solve the problems of uneven use of adsorbent adsorption capacity, poor operating conditions, and high labor intensity of adsorbents. The effect of changing the working environment and conditions and reducing labor intensity

Active Publication Date: 2016-06-22
蛟河市天翔炭业有限公司
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Problems solved by technology

The reason is that since the adsorbent is spread on the horizontal wire mesh, and the passing speed of the asphalt fume is very small, in this passive adsorption mode, there are three main deficiencies:
The first shortcoming is that the area of ​​the purifier is too large due to the large area of ​​the adsorption bed
The second shortcoming is that the adsorption capacity of the adsorbent on the upper and lower layers of the adsorption layer is seriously uneven.
The third problem is particularly prominent. The replacement of the adsorbent takes too long to stop production, the labor intensity of the replacement of the adsorbent is high, and the operating conditions are relatively poor.
However, these constraints cannot be fundamentally resolved

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  • Adsorption method for purifying asphalt fume and practical purifier

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[0020] Example: A carbon factory in Jiaohe City, Jilin Province used a double-layer planar adsorption bed purifier to treat the asphalt fume of the forming air machine, and the emission concentration after purification was 50mg / m 3 the following. However, its floor area (including the necessary maintenance area) reaches 45M 2， , in the treatment of flue gas flow 3000M 3 / H, the coke adsorbent needs to be replaced once a week, and the production needs to be stopped for 6 hours during the replacement, and it can only be completed by the uninterrupted continuous operation of four people. And after adopting the present invention, its floor area (including the necessary maintenance area) is only 18M 2 , Although the coke adsorbent is also replaced once a week, but only one person is required to control the valve of the adsorbent's loading and discharging outlet during the replacement, and it can be completed within 15 minutes of shutting down.

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Abstract

The invention belongs to the technical field of environmental protection, and particularly relates to an adsorption method for purifying asphalt fume and a practical purifier in order to solve an existing restrictive barrier affecting purification of the asphalt fume through an adsorption method. A moving device capable of actively scattering an adsorbent is installed in the purifier provided with a filter bag, and a double adsorption purification mode that the asphalt fume is subjected to absorption purification in an active self-excited three-dimensional adsorbent dust field and then is adsorbed by the filter bag is adopted. The adsorption method for purifying the asphalt fume and the practical purifier have the advantages that the asphalt fume is efficiently purified, and meanwhile the problems that when the adsorption method is used, the occupied area is too large, use of the adsorption capacity of the adsorption material is nonuniform, and when the adsorbent is replaced, conditions are severe, and the labor intensity is too high are solved.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to an adsorption method and a physical purifier for purifying asphalt fume. Background technique [0002] Asphalt fume is the gas generated and volatilized by the use of asphalt during the operation or production process of building materials, road construction, coking, carbon and other industries. The asphalt fume is brownish yellow in appearance, brownish black when burned, and has a harsh and pungent smell that is choking on the nose and throat. In addition to polycyclic aromatic hydrocarbons such as phenols, anthracene naphthalene, and benzopyrene contained in smoke components, which are harmful to animals and plants to a certain extent, 3.4 benzopyrene is more carcinogenic to humans. [0003] In order to protect the health of operators and prevent asphalt fume from polluting the atmosphere, many technical methods have been adopted for the purificat...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/06B01D46/02
CPCB01D46/02B01D53/06B01D46/0036B01D46/60
Inventor 叶宛丽
Owner 蛟河市天翔炭业有限公司
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