has entered the "hot" month of July. In addition to the rising temperatures, there is also full-scale equipment production. Recently, two sets of spray painting room exhaust gas treatment equipment are being processed in the Industrial Park of Zhengzhou Puhua Science and Technology High-tech Zone.
Spray booth exhaust gas treatment system activated carbon adsorption system processing
Project introduction
According to the bidding requirements of the exhaust gas treatment equipment procurement documents issued by Henan Nuclear Clean Technology Co., Ltd., Zhengzhou Puhua Technology Co., Ltd. strictly follows the "Technical Requirements for Exhaust Gas Treatment Equipment" document The treatment equipment parameter requirements specified in the document shall be designed to meet the design treatment effect. The project scope shall be defined in accordance with the document requirements. The total exhaust gas treatment air volume of the system is 90,000 m³/h.
process flow
This project mainly deals with the organic waste gas generated during the spraying process in the spray booth. It adopts the treatment process of "dry paint mist filtration + activated carbon adsorption and desorption + catalytic combustion". The process flow is shown in the figure below:
process description
spray booth After the paint mist exhaust gas is collected through the pipeline, it first enters the dry paint mist filter for pretreatment. The exhaust gas that removes particulate matter then enters the activated carbon adsorption box for adsorption and concentration treatment of the exhaust gas. The non-methane total hydrocarbons in the exhaust gas are adsorbed by the activated carbon. After that, it is passed into the exhaust pipe through induced draft fan to meet the emission standards.
After non-methane total hydrocarbons are adsorbed in the activated carbon box, the high-temperature hot gas discharged from the catalytic combustion equipment is used for desorption treatment. The desorbed organic matter enters the catalytic combustion system. The catalytic combustion system (250~350℃) can remove organic pollution The organic matter is converted into carbon dioxide and water to achieve the purpose of purification. The purified exhaust gas is discharged through the chimney up to standard. At the same time, the heat generated by the combustion process of organic matter can maintain its temperature and ensure normal combustion. The complete system of
consists of pretreatment filter, adsorption bed, catalytic combustion bed, flame retardant, high-efficiency heat exchanger, fan, valve, PLC control system, etc.
