It is an important link in the sludge treatment process to solve the dewatering problem of belt press mud and achieve deep dewatering of sludge. Here are some effective measures and suggestions:
One. Optimization of sludge conditioning
Adjusting sludge conditioner:
Check and adjust the mixing conditions of sludge conditioner and sludge, determine the dosing point and multi-point dosing.
Check the concentration of sludge conditioner and the added concentration to avoid excessive agents to make the sewage sticky and the sludge shiny.
Adjust the flow rate of sludge and dewatering agent sludge conditioner, and the bad flocculation directly affects the filter water.
The drug is added from less to more until the appropriate dosage is found.
Improved sludge concentration:
Check the sludge concentration, low concentration should improve the sludge concentration to avoid affecting dehydration.
Two, adjust the parameters of the belt filter press
Reduce the filter speed:
Reducing the filter speed makes the filtration time longer, which can increase the dehydration effect.
Adjusting tape pressure:
Increasing the band pressure can improve the dehydration effect.
Check the flushing water system:
Ensure that the flushing water pressure and flow rate are moderate, the nozzle is smooth, and the filter belt is blocked.
Periodically check whether the flushing water pipe leaks and the flushing pump fails.
Three, the use of deep dehydration technology
High pressure belt continuous sludge deep dewatering technology:
Add some modifier to the sludge to destroy the cell wall of microorganisms and improve the porosity between the sludge particles.
The high pressure belt continuous sludge deep dewatering machine is used for high pressure physical extrusion of the sludge to achieve the goal of deep separation of sludge and water.
Other deep dehydration techniques:
Such as high pressure diaphragm plate frame filter press dehydration technology, closed low temperature filter cake drying technology, etc., according to the specific situation to choose the appropriate technology.
Four, strengthen equipment maintenance and management
Regular inspection of equipment:
Check and maintain the belt filter press regularly to ensure its normal operation.
Training operators:
Conduct professional training for operators to improve their operational skills and ability to deal with problems.
Establish management system:
Establish a sound sludge treatment management system, standardize the operation process, and ensure the sludge treatment effect.
Five. Comprehensive Evaluation and Improvement
Evaluation effect:
The sludge dewatering effect after the adoption of the above measures was comprehensively evaluated, including mud biscuit degree, moisture content and other indicators.
Continuous improvement:
According to the evaluation results, the measures of sludge conditioning, belt filter press parameter adjustment, deep dehydration technology and other aspects are continuously optimized to achieve deep dehydration of sludge.
In summary, to solve the problem of mud dewatering by belt press and achieve deep dewatering of sludge, it is necessary to start from many aspects such as sludge conditioning, parameter adjustment of belt filter press, deep dewatering technology application, equipment maintenance and management, and comprehensive evaluation and improvement. Through continuous optimization and improvement, the dewatering effect of sludge can be significantly improved, the moisture content can be reduced, and the subsequent treatment of sludge can provide a strong guarantee.