Aiming at the problems of thin mud cake and high moisture content in the mud pressing process, it can be solved from the following aspects:
1. Optimization of sludge treatment technology
Increase press pressure:
In the process of sludge dewatering, increasing the pressing pressure can significantly reduce the moisture content of mud cake.
For example, the use of high-pressure dehydration technology such as diaphragm pressing can effectively reduce the moisture content of sludge cake.
Optimization of flocculation conditions:
The flocculation effect directly affects the dewatering performance of sludge.
Re-evaluation and selection of appropriate flocculants, optimization of the dosage, while ensuring moderate stirring intensity, can significantly improve the flocculation effect of sludge, and then reduce the moisture content of mud cake.
Use of sludge conditioner:
The sludge conditioner can change the surface structure of the sludge, reduce the solid surface load and specific surface area of the sludge, destroy the bacterial structure, and improve the dewatering performance of the sludge.
The moisture content of mud cake can be significantly reduced by selecting suitable sludge conditioner for pretreatment.
Two, improve equipment and maintenance
Select the right dehydration equipment:
According to the nature of sludge and treatment needs, choose the appropriate dewatering equipment.
For sludge with high moisture content, efficient dewatering equipment such as high-pressure sludge filter press can be considered.
Regular maintenance of equipment:
Maintain and upgrade the dewatering equipment regularly to ensure its efficient operation.
Maintenance includes cleaning the filter, checking the sealing performance, etc., to ensure that the equipment is in good working condition.
Three, adjust the operating parameters
Control raw material humidity:
The humidity of raw material is one of the key factors affecting the moisture content of pressed mud.
Strictly control the humidity of raw materials, and pre-dry treatment if necessary to reduce the moisture content of pressed mud.
Optimized press parameters:
According to the characteristics of raw materials and product requirements, reasonably adjust the pressing process parameters, such as pressing time, pressing temperature, etc.
Ensure that the water can be fully discharged during the pressing process to reduce the mud cake moisture content.
Iv. Comprehensive consideration of environmental factors
Adjust environmental factors:
Temperature, pH value and other environmental factors may affect the dewatering performance of sludge.
These factors should be fully considered in actual operation, and corresponding measures should be taken to adjust and optimize.
Focus on environmental protection and sustainability:
When selecting agents and equipment, its impact on the environment and the subsequent sludge disposal method should be considered.
Avoid waste of other energy or secondary pollution caused by improper sludge treatment.
In summary, to solve the problem of thin mud cake and high moisture content, comprehensive treatment should be carried out from many aspects. By optimizing sludge treatment process, improving equipment and maintenance, adjusting operation parameters and considering environmental factors, the water content of mud cake can be effectively reduced and the dewatering efficiency of sludge can be improved.