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Method and apparatus for absorbing asphalt smoke

A technology of asphalt fume and absorption device, which is applied in the field of coal chemical industry, can solve the problems of increased sewage treatment troubles, cumbersome operation and maintenance, and large system resistance, so as to avoid direct escape, increase the height of the chimney, and increase the secondary cleaning Effect

Inactive Publication Date: 2012-05-23
BAOWU CHARCOAL MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] (3) In the electric capture method, the capture efficiency of dry electric capture for gas phase components is almost equal to zero, while wet electric capture can capture gaseous asphalt, but it increases the trouble caused by sewage treatment
The process is simple, the purification efficiency is high, and the investment is small, but the system resistance is large, the energy consumption is high, and the operation and maintenance are cumbersome.

Method used

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  • Method and apparatus for absorbing asphalt smoke
  • Method and apparatus for absorbing asphalt smoke
  • Method and apparatus for absorbing asphalt smoke

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Embodiment Construction

[0039] The following are preferred embodiments of the present invention. However, it should be understood that its specific description should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above-mentioned implementation methods by those of ordinary skill in the art after reading this specification belong to the patent of the present invention. scope of protection.

[0040] Asphalt fume absorption process such as figure 1 As shown, the structure of the absorber is as Figure 2~3 As shown, the wash oil cooler used is a shell and tube heat exchanger.

[0041] The structure of the asphalt fume absorption device includes a gas phase tube 1 and a venturi tube 2 connected in sequence, and the venturi tube 2 is also connected to the shell and tube heat exchanger 5;

[0042] The lower end of the Venturi tube 2 is connected to the oil washing circulation tank 3, and a washing tower 6 is also arranged on the oil washing ...

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Abstract

The invention relates to a method and an apparatus for absorbing asphalt smoke. An absorption process and a condensing method are applied comprehensively. Absorber oil is utilized to absorb organic matters in the smoke, and cooling water is utilized to cool the asphalt smoke indirectly; members in washing tower are improved, and a baffle plate and a herringbone strip are arranged to avoid obstruction in the tower; cycling absorber oil and a split-type structure of the chimney are simultaneously employed, and secondary washing in the washing tower and secondary condensation cooling of a cooling coil pipe are added, so as to enhance absorption effect of asphalt smoke, reduce consumption of a absorbent and realize a chimney outlet asphalt smoke concentration lower than a discharge standard. Meanwhile, as pollutants are absorbed or concentrated, reutilization of resource is realized.

Description

[0001] technical field [0002] The invention relates to the field of coal chemical industry, in particular to a method and a device for absorbing asphalt fume. [0003] Background technique [0004] When coal tar processing enterprises produce asphalt and road construction oil (fuel oil), or when downstream processing enterprises, such as carbon factories and linoleum factories use asphalt, a large amount of asphalt fume is emitted into the air during the heating process, and its particle size is mostly in the Between 0.1μm and 1.0μm. Asphalt flue gas mainly contains aromatic hydrocarbons, a small amount of straight-chain hydrocarbons and water vapor, which contains carcinogens such as 3,4-benzopyrene, which directly emits large air pollution and heavy odors, and must be purified to meet the emission standards. [0005] At home and abroad, the following methods have been tried for asphalt fume purification: incineration, condensation, electric capture, absorption and ads...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/14B01D53/18B01D5/00B01D47/06
Inventor 杜亚平肖长勤
Owner BAOWU CHARCOAL MATERIAL TECH CO LTD
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