Decrease in purification efficiency during the use of spray purification tower and solutions
Jul 03,2025
Spray purification tower, as an important equipment for industrial pollution control, plays a crucial role in the treatment of waste gas and wastewater. However, in practical use, various problems often arise due to complex working conditions and improper operation, which can affect the purification effect and equipment operation. Understanding these common problems and their solutions can help businesses respond to faults in a timely manner and ensure stable and efficient operation of equipment.
Problem expression
After being treated by a spray purification tower, the removal rate of pollutants in exhaust gas or wastewater is significantly reduced, and the emission indicators cannot meet environmental standards, such as excessive concentration of harmful gases in exhaust gas and ineffective reduction of heavy metal ion content in wastewater.
cause analysis
1. Insufficient concentration of spray solution: The concentration of spray solution used to absorb pollutants (such as alkaline solution absorbing acidic gases, flocculant treating wastewater) gradually decreases with use, and is not replenished or replaced in a timely manner, resulting in weakened absorption and purification capabilities.
2. nozzle blockage: During long-term operation of the spray tower, particles in the exhaust gas and impurities in the wastewater can easily clog the nozzle, making it difficult for the spray liquid to spray evenly, reducing the gas-liquid or liquid-liquid contact area, and decreasing mass transfer efficiency.
3. Failure of packing layer: The packing layer is a key component that increases the gas-liquid or liquid-liquid contact area. If the packing forms scale, accumulates impurities, or is damaged, it will hinder fluid flow, reduce mass transfer efficiency, and affect purification efficiency.
4. Equipment leakage: Poor sealing of tower connections, maintenance doors, and other parts can result in untreated exhaust gas or wastewater mixing into the purified fluid, leading to a deterioration of the overall purification effect.
solution
1. Regular testing and replacement of spray liquid: Establish a spray liquid concentration testing system, conduct regular testing according to process requirements, and promptly supplement or replace when the concentration is below the standard. For example, using pH test strips or pH meters to monitor the acidity and alkalinity of alkaline spray solutions to ensure that they are within the effective working range.
2. Cleaning and maintenance of nozzles: Develop a nozzle cleaning plan and regularly disassemble clogged nozzles for cleaning. High pressure water gun flushing or soaking in specialized cleaning agents can be used to remove impurities. For severely worn nozzles, replace them with high-quality products that are corrosion-resistant and not easily clogged in a timely manner.
3. Repair or replace the packing: Regularly check the condition of the packing layer. If scaling is found, chemical cleaning methods can be used to remove it; For fillers with severe damage or accumulation of impurities, replace them in a timely manner. When replacing, choose appropriate specifications and materials of fillers to ensure their performance meets the requirements of the working conditions.
4. Inspection and sealing equipment: Conduct a comprehensive inspection of the connections and maintenance doors of the tower body, and promptly use sealant, sealing strips, etc. to seal any air leaks found. Strictly follow the specifications during equipment installation and maintenance to ensure sealing quality.
Mastering the decrease in purification efficiency and solutions during the use of spray purification towers is the key to ensuring stable equipment operation and achieving efficient pollution control. Enterprises should strengthen equipment inspection and maintenance during use, timely discover and handle potential problems, and ensure that the spray purification tower continues to play its important role in the field of environmental protection. If you have any further technical questions or need professional support, please feel free to contact us at any time.
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