For the problem of high moisture content of mud cake and sticky filter cloth, the following are some specific solutions:

One. Optimization of sludge treatment technology

Adjusting sludge properties:

By adding an appropriate amount of coagulant or filter aid, such as polyaluminum chloride, iron salt, lime or polyacrylamide, to improve the particle distribution and specific resistance of the sludge, so as to reduce its viscosity.

Preheating the sludge and appropriately increasing the sludge temperature can help reduce its viscosity, but attention should be paid to controlling the preheating temperature to avoid excessive deterioration of sludge properties.

Optimize dehydration conditions:

Check and adjust the operating parameters of the plate and frame dehydrator, such as feed pressure, filter pressure, press pressure, etc., to ensure that the Settings are within a reasonable range.

Select the appropriate filtration rate and pressing time according to the sludge properties to ensure the dryness of the mud cake.

Two, improve the dehydration equipment and maintenance

Select suitable filter cloth:

The selection of filter cloth material with high tensile strength and good wear resistance is particularly important for sludge with large viscosity.

Ensure that the filter cloth is fixed firmly to avoid loosening resulting in uneven filter cloth and affecting the sludge water separation effect.

Regular cleaning and replacement of filter cloth:

Regular use of high-pressure water gun or chemical cleaning agent to clean the filter cloth, remove residues and blockages, and maintain the permeability and filtration performance of the filter cloth.

Replace the damaged or aging filter cloth in time to prevent the mud cake from breaking and water from being discharged smoothly.

Equipment maintenance and maintenance:

Regularly maintain and maintain the plate and frame dehydrator, check whether the components of the equipment are in good condition and whether the operation is normal.

Replace the parts that are seriously worn, such as the filter plate, filter frame, etc., to keep the sealing performance of the equipment good and prevent leakage.

Introduction of auxiliary dehydration technology

Combined with other dehydration methods:

Consider using the plate and frame dehydrator in combination with other dehydration methods, such as centrifugal dehydration, belt press filtration, etc., to give play to their respective advantages and improve the overall dehydration effect.

Introduction of drying technology:

Drying techniques such as hot air or microwave are introduced during the pressing process to further reduce the moisture content of the mud cake.

Iv. Comprehensive Consideration and Management

Drug selection and dosage control:

Select and test the reagent in the laboratory to determine the best reagent type and dosage.

Strictly control the dosage of agents to avoid excessive addition of sludge sticky or affect subsequent treatment.

Monitoring sludge status:

Pay close attention to the status changes of the sludge during the dehydration process, such as color, viscosity, etc., and adjust the dosage of agents and dehydration parameters in time.

Training and practice:

Conduct professional training for operators to improve their operation skills and ability to judge equipment faults.

Develop detailed operating procedures and maintenance plans to ensure the normal operation and efficient dehydration of equipment.

In summary, to solve the problem of high moisture content of mud cake and sticky filter cloth, comprehensive treatment should be carried out from many aspects. By optimizing sludge treatment process, improving dewatering equipment and maintenance, introducing auxiliary dewatering technology and comprehensive consideration and management, the moisture content of mud cake can be effectively reduced and the dewatering efficiency of sludge can be improved.