Mineral fiber exhaust gas treatment method

Abstract

The invention relates to a mineral fiber exhaust gas treatment method. The mineral fiber exhaust gas treatment method comprises the following specific steps: after dust removal of mineral wool collecting room exhaust gas, firstly reducing the exhaust gas temperature to 40 DEG C or below by using a steam heat exchanger, and then entering a three-stage efficient filter, further treating a condensateand dust by passing through a desorbing fan and a heater for processing so as to protect a later molecular sieve adsorbent, then purifying the exhaust gas by using a molecular sieve rotating wheel adsorption and concentration device, and discharging the exhaust gas into the atmosphere, wherein the molecular sieve rotating wheel adsorption and concentration device comprises an adsorbing zone, a desorbing regeneration zone and a cooling zone, and can achieve continuous and reliable operation. By the mineral fiber exhaust gas treatment method, the dust holding capacity is high, the resistance islow, the filtering wind speed is high, and the flame retardance is achieved; the purifying efficiency is high and reaches 99%; a whole device has no moving component, so that maintenance is simple and the failure rate is low; a maintenance door is provided, so that replacement of a filter material is simple and convenient and the operation is simple and convenient; a system is automatically controlled by a PLC in the whole process, so that one-key startup and linkage control can be achieved.

Description

technical field [0001] The invention relates to a mineral fiber waste gas treatment method, which belongs to the technical field of environmental protection. Background technique [0002] In the process of producing rock wool, firstly, the ore needs to be melted at a temperature of 1400°C and drawn and attached to the net. At the same time, phenolic resin is sprayed on the net, and the fan is used to cool and solidify. Due to the organic substances such as formaldehyde and phenolic resin in the production raw materials, the cooling exhaust gas is an organic waste gas. These organic waste gases can be absorbed through the respiratory tract, skin and digestive tract, and are of low toxicity. If they are discharged directly without treatment, they will affect the indoor environment of the plant and the living environment of the surrounding residents. With the development of my country's economy and society, conventional pollutants (particulate matter, SO 2 , NO x etc.) have ...

AI Technical Summary

Problems solved by technology

These organic waste gases can be absorbed through the respiratory tract, skin and digestive tract, and are of low toxicity. If they are discharged directly without treatment, they will affect the indoor environment of the plant and the living environment of the surrounding residents.