Oil fume waste gas treatment device for pit furnace

Abstract

The invention provides an oil fume waste gas treatment device for a well type furnace, which includes a conveying pipeline, a waste gas purification device and an induced draft fan. A dilution channel is installed between the conveying pipeline and the air inlet of the waste gas purification device; the dilution channel runs from front to After that, there are primary dilution section and secondary dilution section; the primary dilution section includes two exhaust gas conveying parts and primary air conveying part arranged in parallel. There is a first air inlet on the wall. The secondary dilution section includes two primary dilution conveying parts and a secondary air conveying part arranged in parallel. The inlet of the primary dilution conveying part is connected with the outlet of the primary dilution section, and the side of the secondary dilution section A second air inlet is opened on the wall, and an opening adjustment mechanism for controlling the size of the second air inlet is installed outside the secondary dilution section. This patent facilitates the control of the concentration of hydrogen below the explosive point through the secondary dilution of the fume exhaust gas.

Description

technical field [0001] The invention relates to the technical field of machinery, in particular to a waste gas treatment device of a pit furnace. Background technique [0002] The well-type furnace discharges a certain amount of oil fume exhaust gas generated in the oxidation process of the product surface. The oil fume exhaust gas emission needs to be purified before it can be discharged. The plasma purification process is a good way to purify oil fume. The plasma purification process will produce electric glow. Open flame, for the oil fume exhaust gas of the well-type furnace, because the product surface oxidation process contains hydrogen after oxidation, hydrogen is a combustible gas, if the plasma purification process is used for purification, although the purification effect is excellent, the high content of hydrogen will detonate Gas, its explosion limit is 4% to 74%. Therefore, it is necessary to reduce the concentration of discharged hydrogen to less than 4% to avo...

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Problems solved by technology

[0002] The well-type furnace discharges a certain amount of oily fume and exhaust gas that will be generated during the product surface oxidation process. The oily fume exhaust gas needs to be purified before it can be discharged. The plasma purification process is a good method of oil fume purification. The plasma purification process will produce electric glow. Open flame, for the oil fume exhaust gas of the well type furnace, because the product surface oxidation process contains hydrogen after oxidation, hydrogen is a combustible gas, if the plasma purification process is used for purification, although the purification effect is excellent, but the high content of hydrogen will detonate Gas, its explosion limit is 4%~74%

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