Fiberboard drying waste gas treatment system and fiberboard drying waste gas treatment process

Abstract

The invention discloses a fiberboard drying waste gas treatment system, which belongs to the technical field of waste gas treatment. The main points of the technical solution are to include a pretreatment unit, a purification unit and an exhaust unit connected in sequence; the pretreatment unit includes an air induction pipe, a spray pipe, a set The first spray device in the spray pipe and the filter mechanism used to filter and purify the dusty spray produced in the spray pipe; the purification unit includes a spray tower, the top of the spray tower communicates with the exhaust unit, and the bottom The end is used to communicate with the outlet end of the spray pipe; the spray tower is equipped with a biological purification device, a second spray device, a wet electrostatic precipitator and a third spray device in sequence from bottom to top; it also includes a water supply unit, the first spray The shower device, the second shower device and the third shower device are all in communication with the water supply unit. The fiberboard drying waste gas treatment system of the present invention has the advantages of high purification efficiency and good purification effect. In addition, the invention also correspondingly discloses a fiberboard drying waste gas treatment process.

Description

technical field [0001] The invention relates to the technical field of waste gas treatment, more specifically, it relates to a fiberboard drying waste gas treatment system and a fiberboard drying waste gas treatment process. Background technique [0002] Fiberboard (Fiber Board), also known as density board, is a wood-based panel made of wood fiber or other vegetable fiber and applied with urea-formaldehyde resin or other suitable adhesives. Fiberboard has the advantages of uniform material, small vertical and horizontal strength difference, not easy to crack, etc., and has a wide range of uses. [0003] During the drying process of fiberboard, waste air containing a certain amount of wood dust is generated. The waste gas usually contains fiber dust, formaldehyde, volatile organic gaseous pollutants (VOC) and odorous gases, and the fiberboard drying waste gas has the characteristics of large tail gas volume, high dust content and high temperature. Improper treatment will ca...

AI Technical Summary

Problems solved by technology

However, the separate installation of the biological regeneration pool and the spray tower in the waste gas treatment equipment also makes it impossible to directly biodecompose and purify the organic pollutant components in the waste gas, and can only treat the organic pollution dissolved in the spray liquid due to spraying substances, which limits the further improvement of the purification rate of pollutants in the exhaust gas

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