For the mud cake "runny" problem in the mud press process of plate and frame filter press, it can be optimized from the following aspects:
One. Optimization of sludge conditioning
Choose the right conditioner:
Select the appropriate conditioner according to the nature of the sludge (such as organic content, inorganic content, pH, etc.). The selection of conditioner should be able to effectively improve the dewatering property of sludge, reduce the moisture content of sludge, and avoid the formation of false floc.
The type and dosage of the conditioner need to be determined by test to achieve the best conditioning effect.
Adjusting process:
Optimize the dosage sequence and mixing method of the conditioner to ensure that the conditioner is fully and evenly mixed with the sludge.
Control the conditioning time, so that the sludge to form a stable, dense floc structure.
Two, improve the filter operation
Adjust filter press parameters:
According to the nature of the sludge and the performance of the filter press, adjust the filter pressure and feed speed of the filter press. Increasing the filtration pressure and prolonging the filtration time is helpful to improve the compaction degree and reduce the moisture content of the mud cake.
Avoid excessive pressure resulting in damage to the filter cloth or equipment.
Optimized filter cloth selection:
Select a filter cloth with a moderate aperture and a suitable material to ensure a good filtration effect and appropriate mud cake emission.
Check and replace the filter cloth regularly to avoid clogging or wear of the filter cloth affecting the filter effect.
Improved filter plate design:
Check whether the design of the filter plate is reasonable and ensure that the filter plate has sufficient strength and stiffness to withstand the pressure during the filtration process.
Optimize the arrangement of filter plates to improve the overall performance and filtration efficiency of the filter press.
Three, strengthen equipment maintenance and management
Regular maintenance of equipment:
Regular maintenance of the filter press, including cleaning the blocked filter plate holes, checking whether the mechanical parts are in good condition, replacing wearing parts, etc.
Ensure that the pressing device, transmission device and other components of the filter press operate normally to avoid failure affecting the filter effect.
Strengthen equipment management:
Establish a sound equipment management system and operating procedures to ensure that operators can use the filter press correctly and safely.
Regular training and assessment of operators to improve their operational skills and ability to deal with problems.
IV. Other precautions
Control feed concentration:
The concentration of suspension has influence on the consolidation and dewatering effect of mud cake. If the concentration of the suspension is low, the content of solid substances in the suspension can be moderately increased to improve the consolidation effect. However, pay attention to avoid other problems caused by high concentration.
Monitoring changes in sludge properties:
Periodically monitor the changes in the properties of the sludge (such as moisture content, viscosity, particle size, etc.) in order to adjust the conditioner and filter press parameters in time.
Consider using assistive devices:
According to the need, you can consider the use of auxiliary equipment such as sludge thickener, sludge dehydrator, etc., in order to improve the dewatering efficiency of sludge and the quality of mud cake.
In summary, through the comprehensive consideration and practical operation of optimizing sludge conditioning, improving filter press operation, strengthening equipment maintenance and management, and paying attention to other related matters, the mud cake "runny" problem in the process of plate and frame filter press can be effectively solved.