Exhaust gas treatment equipment is an indispensable environmental protection facility in industrial production, and its stable operation directly affects whether pollutant emissions meet standards. However, sudden malfunctions of exhaust gas treatment equipment are inevitable during long-term operation. If emergency measures are not taken in a timely manner, it may lead to excessive emissions of exhaust gas and even cause safety accidents. Therefore, it is crucial to develop a scientific and reasonable emergency plan for the operation and maintenance of waste gas treatment equipment.

1. Common fault types and countermeasures

Malfunctions in exhaust gas treatment equipment often originate from different stages that require targeted treatment. Fan abnormalities are a common problem, manifested as abnormal noise, excessive vibration, or sudden shutdown. Once such situations are discovered, the power supply, bearings, and transmission components should be checked immediately. If necessary, the backup fan should be switched to ensure that the exhaust gas collection system is not interrupted.

Blockage of spray towers can also affect treatment efficiency, usually caused by dust accumulation or deterioration of circulating water quality. The operation and maintenance personnel of exhaust gas treatment equipment should regularly check the spray pressure and water quality, and promptly flush or replace the nozzle when signs of blockage are found to avoid system failure. For acid-base waste gas treatment equipment, pH value loss of control can lead to neutralization reaction failure. At this time, it is necessary to quickly adjust the dosage and test whether the exhaust gas meets the standards.

2. Emergency response to sudden power outages and equipment leaks

Power interruption is one of the emergency situations, especially for activated carbon adsorption devices or catalytic combustion equipment that rely on electricity. Enterprises should be equipped with backup power sources or UPS systems to ensure that critical equipment can operate for a short period of time even after a power outage. At the same time, the intake valve should be closed to prevent untreated exhaust gas from being directly discharged. After restoring power supply, the equipment status should be checked item by item to avoid problematic operation.

The risk of gas leakage cannot be ignored, especially when dealing with toxic and harmful exhaust gases. Once a leak is detected, the emergency exhaust system should be activated immediately, relevant personnel should be evacuated, and the leakage point should be investigated. For pipeline damage or valve failure, temporary sealing materials can be used to block the leakage source, and operation can be restored after thorough repair.

3. Data monitoring and personnel response mechanism

The online monitoring system is the key to warning of faults. If the data shows an abnormal increase in emission concentration, it is necessary to immediately check the operating parameters of the exhaust gas treatment equipment, such as temperature, pressure, and flow rate, to see if they deviate from the normal range. At the same time, the operation and maintenance team of exhaust gas treatment equipment should regularly practice emergency plans to ensure that each member is familiar with the operating procedures and can arrive at the site for disposal in a short period of time.

Recording and analyzing historical fault data is very important. By analyzing high-frequency fault points, maintenance plans can be optimized, such as shortening the replacement cycle of vulnerable parts or upgrading equipment configuration in weak links. This preventive maintenance can significantly reduce the probability of sudden failures.

4. Post evaluation and long-term improvement

After the malfunction of the exhaust gas treatment equipment is resolved, it is necessary to conduct a review of the cause of the incident and evaluate the effectiveness of emergency measures, such as whether the response time meets the standards and whether the disposal methods are scientific. Based on the summarized experience and lessons, revise the emergency plan and supplement necessary emergency supplies, such as spare filter bags, corrosion-resistant seals, etc.

The stability of exhaust gas treatment equipment directly affects the environmental compliance of enterprises. Only by combining daily maintenance with emergency response can we minimize environmental risks and ensure long-term stable and compliant emissions of waste gas treatment equipment.