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Catalytic combustion waste gas treatment equipment
Catalytic combustion due to the ignition temperature is low, is an ideal by catalytic reaction (flame) method for treatment of organic pollutants and has the advantages of wide application range, simple structure, high purification efficiency, energy saving, no two pollution, has been widely used at home and abroad. Our company's catalytic combustion purification device has simple operation, automation, high procedures, can effectively deal with a variety of organic waste gases, dealing with the concentration of <=10g/m3, welcomed by the vast numbers of customers.
Structure and principle of catalytic combustion treatment technology
Catalytic combustion purification equipment is mainly composed of flame arrester, heat exchanger, catalytic reaction bed and fan. Compared with direct combustion, catalytic combustion temperature is lower and combustion is more complete. The catalyst used for catalytic combustion is noble metal and metal oxide with large surface. Catalytic combustion is the removal of organic pollutants in the catalyst, platinum, palladium and other catalysts, at lower temperatures, the exhaust gas in the organic pollutants into carbon dioxide and water.
The gas flame arrester after filtration through the synchronous reverse switching valve, by-pass valve into the main regulator into the heat exchanger, the heat exchanger heat increased after a certain temperature into the preheating chamber, after heating the preheating chamber exhaust temperature to the catalytic ignition temperature (250 degrees) and then enter the catalytic activity of catalyst in the reaction bed, under the for oxidation reaction of organic waste, harmless water and carbon dioxide, and release a certain amount of heat. After reaction, the high temperature gas enters the heat exchanger again, and finally enters the atmosphere at lower temperature by the draft fan. Catalytic combustion is the use of the catalyst at low temperature (25-30 degrees) to achieve complete oxidation of organic matter, therefore, has the advantages of simple operation, safety, high purification efficiency, especially in organic waste recycling organic waste gas purification value is widely used.
Different emission occasions and different exhaust gases have different catalytic combustion waste gas treatment processes. But no matter what kind of process are as follows: the pretreatment process unit, exhaust gas preheating device, catalytic combustion device.
Catalytic combustion characteristics
1, with high-quality metal platinum and palladium plating on honeycomb ceramic carrier as a catalyst, purification efficiency of up to 97 - 99%, long service life, and renewable, gas flow, resistance is small;
2, complete safety facilities: fire protection dust collector, pressure relief hole, overheating alarm and other protective facilities;
3, preheating 15-30 minutes full power heating. When power consumption can be acted, when the gas concentration is low, automatic intermittent heating;
4, the waste heat can be returned to the drying channel, used for drying work, reducing the power consumption in the original drying channel, and also for other aspects of the factory thermal energy reuse
Matters needing attention in catalytic combustion treatment
1, the exhaust gas composition can not contain the following substances; high viscosity grease. Such as phosphorus, bismuth, arsenic, antimony, mercury, lead and tin; high concentrations of dust;
2, equipment selection, indicating the exhaust gas composition, concentration and outlet temperature;
3, equipment installation site without corrosive gas, and have good rainproof measures;
4 、 equipment required power supply: three-phase AC 380V frequency 50Hz;
Applicable range of catalytic combustion
1, for the purification of organic solvents, such as benzene, alcohols, esters, phenols, ethers, alkanes and other mixed organic waste gases;
2, suitable for coating wire, machinery, electrical machinery, chemicals, meters, automobiles, engines, plastics, electrical appliances and other industries in the purification of organic waste gas;
3, suitable for all kinds of drying Road, printing ink, motor insulation treatment and other drying lines.
[catalytic combustion waste gas treatment equipment]
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