Aiming at the problem of high moisture content of mud cake, the following solutions can be adopted to optimize the dehydration effect and reduce the moisture content of mud cake.

First, adjust the filter conditions

Optimize operation parameters: check and adjust the filter speed, filter pressure, tape speed and other key parameters. Increasing the filtration pressure, appropriately reducing the filtration speed or increasing the belt speed will help to improve the filtration effect and reduce the moisture content of the mud cake.

Adjust the sludge concentration: ensure that the sludge reaches the appropriate concentration before entering the belt filter press to avoid too low concentration leading to poor dehydration effect.

Two, replace or clean the filter cloth

Check the condition of the filter cloth regularly: the aging, blockage or damage of the filter cloth will directly affect the dehydration effect, so the status of the filter cloth should be checked regularly.

Timely replacement or cleaning: Once there is a problem with the filter cloth, the new filter cloth should be replaced in time or the filter cloth should be cleaned to restore its good filtration performance.

3. Optimize the use of sludge dewatering agents

 

Select the right agent: Select the right sludge dewatering agent according to the nature of the sludge, such as polyacrylamide (PAM).

Adjust the concentration and dosage of the agent: determine the best concentration and dosage of the agent through the test to ensure that the agent can play a full role and improve the dehydration effect.

Optimize the mixing conditions: Improve the mixing conditions of the sludge and the agent, ensure that the sludge dewatering agent can be evenly distributed in the sludge, and form a good floc structure, which is conducive to the subsequent dehydration process.

Check and maintain discharge system

 

Ensure that the discharge system is smooth: The belt filter press is usually equipped with a discharge system for draining excess water from the filter bed. Discharge systems should be inspected and maintained regularly to ensure that they are unobstructed and to avoid water retention resulting in increased mud cake moisture content.

Cleaning and maintenance: timely clean up the impurities and blockages in the discharge system to keep it in good working condition.

5. Optimize subsequent processing steps

Increase drying time: If conditions permit, you can increase the drying equipment or extend the drying time after the belt filter press to further reduce the moisture content of the mud cake.

Improve storage and transportation methods: use a well-sealed container to store mud cake, and take moisture-proof measures during transportation to prevent the mud cake from reabsorbing water and causing the moisture content to rise.

Six, technology upgrade and equipment transformation

Upgrade dewatering equipment: Consider a new generation of sludge dewatering equipment, such as those using thin film technology, which typically have higher dewatering efficiency and lower moisture content.