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How to maintain an activated carbon adsorption device?
发布时间：2019-08-14
Activated carbon adsorption is a common method for treating waste gas. The adsorption method uses porous activated carbon, diatomaceous earth, anthracite, etc., to adsorb organic gas molecules onto its surface, thereby purifying the air. Activated carbon purifiers are also widely used in industrial production. Today, let's study how to maintain and service this type of equipment.
1. Replacement cycle of activated carbon: Generally, activated carbon adsorption treatment equipment will use activated carbon, and there should be a regular schedule for regenerating or replacing the activated carbon. Normally, we should calculate based on the factory working hours; for every eight hours of operation, the desorption treatment time for activated carbon should be around three months. This is the typical processing cycle, and we can also calculate the desorption time based on the actual usage of the activated carbon. After two years of use, activated carbon will lose its regeneration effect; thus, we need to update and replace it.
2. Method for replacing activated carbon: To facilitate the replacement of activated carbon during operation, it is generally introduced from the top, while the discharge outlet should be at the bottom.
3. Recovery of solvents: The solvents in waste gas treatment equipment are insoluble in water and can be conveniently recovered from water. The recovered solvent can be mixed with water and added to coal to be sent into the boiler for incineration.
4. Concentration of mixed solution: In the primary absorption tower, the concentration of NaOH and NaClO in the storage tank should be maintained at around 2%-6%. When the concentration falls below 2%, additional mixed solution needs to be added.
5. Daily maintenance of activated carbon adsorption equipment: Daily maintenance includes regularly checking whether the fan and water pump are operating normally, whether the filter and nozzles are clear or blocked, whether the liquid level is normal, and whether the float ball is malfunctioning. Additionally, we need to check if the concentration of the absorption neutralizing solution is within the specified range. If any issues are found, we should address them immediately and avoid forced operation that could affect equipment performance or cause damage.
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