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How to improve the dewatering efficiency of the plate and frame filter press?

Dec 21, 2021

How to improve the dewatering efficiency of the plate and frame filter press?

1. Optimization of plate and frame filter press equipment

The filter press dehydration effect is not good, the first consideration is to optimize and adjust the filter press prepared working parameters, such as the type of filter cloth, the pressing pressure value, and the operating procedure Etc., while ensuring the dehydration effect, the equipment efficiency is greatly improved.

How to improve the dewatering efficiency of the plate and frame filter press?

(1) Clean the filter cloth regularly and replace the corrugated filter with larger air permeability of filter cloth to increase the filtering speed.

(2) Increase the pressing pressure by adding an air compressor.

(3) Adjust the operating procedures, first squeeze and then press or press first and then reverse squeeze, compare the two dehydration effects, and constantly adjust the pressing and squeezing time and the cycle times of the two processes, observe the change of moisture.

(4) Change the feeding method. Generally, the filter press is opened once the feeding is completed. Start pressing and squeezing, you can try to pre-press after the feeding is completed, then feed the material for second time, and continue to squeeze.

2. Reasonable use of dehydrating agent for plate and frame filter press

Medicament is an important factor affecting filter press dehydration. Commonly used mainly include organic flocculation, inorganic flocculant, microbial flocculant, composite flocculant, coagulant aid etc. The dosage of inorganic flocculant is large and the effect is general; the dosage of organic flocculant small, but expensive, and has certain biological toxicity; quicklime and other coagulant aids great damage to the filter cloth and introduction of impurities; the application environment of biological flocculants is relatively

For harsh. In the actual production process, multiple agents are often used in combination to ensure the dehydration effect.


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