Based on the current status of catalytic combustion equipment, stringent standards should be established to ensure proper operation. Professional technical training for operators should be provided, and the chimneys should be equipped with lightning protection devices. If activated carbon adsorption beds, zeolite turntables, or molecular sieve adsorption equipment are used, the catalytic combustion equipment should be provided with separate pressure relief and explosion-proof diaphragms. A fire-retardant filter should be installed in the connecting pipe between the activated carbon adsorption bed and the combustion equipment, allowing the device to serve both as a fire-retardant and a filter.
Fresh, heated air with heat exchange is evenly introduced into the adsorption chamber, desorbing activated carbon or molecular sieve zeolite. The activated carbon adsorption tank and catalytic combustion equipment are equipped with exhaust gas concentration and temperature detection. When the exhaust gas concentration is too high, an alarm is triggered and the valve is opened to reduce the concentration. If the temperature is too high, an active alarm is issued and the cooling equipment is activated.
Catalytic combustion equipment electrical equipment should strictly comply with lightning protection, grounding measures, and protective measures as specified in relevant standards to prevent the occurrence of various accidents. Activated carbon adsorption tanks and catalytic combustion equipment are equipped with inert gas and fire sprinkler systems. When the temperature in the activated carbon adsorption bed is too high, inert gas is rapidly filled. If the temperature continues to rise, activate the sprinkler.
High-temperature equipment and pipelines should use refractory fiber materials with good insulation properties and light weight. The equipment is equipped with fire prevention valves. When the equipment operates at an excessively high temperature, all air valves except the direct exhaust valve should be closed, cutting off the equipment's airway to the workshop, stopping the fan, and immediately filling with inert gas to prevent accidents. Under the high summer temperatures, ventilation for cooling should be conducted, inert gas should be filled, and oxidation reactions of activated carbon should be prevented.
The lower explosive limit of organic gases is related to temperature. Generally, the higher the temperature, the faster the corresponding speed, and the wider the range of the explosion limit. When the concentration of organic waste gases entering a catalytic combustion unit is too high, the temperature of the combustion unit increases. Due to the absence of waste gas concentration detection and control equipment in certain catalytic combustion units, the lower explosive limit of the heated organic waste gases may be lower than the one provided in the manual. Moreover, the mixture of organic waste gas components inside the equipment may be uneven, potentially exceeding the actual explosion limit of the gases in some areas, posing an explosion risk.
