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Dec 28, 2023
The most common regeneration method for horizontal belt filter cloths is using stainless steel fan-shaped nozzles mounted on stainless steel wash pipes with appropriate clamps. Under a certain pressure and with process water, the nozzles provide thorough, all-around washing of every part of the filter cloth.
High-pressure washing is applied intermittently based on the actual condition of the filter cloth on site. The frequency and duration can be adjusted flexibly according to the degree of contamination, material characteristics, and process requirements. The high-pressure water stream effectively removes residual particles from the surface and pores of the filter cloth, helping to restore filtration performance and extend service life.
For horizontal vacuum belt filters used in coal chemical industries—such as for the fine slag, catalysts, molecular sieves, and tailings dry stacking—fan nozzle cleaning is typically performed before and after filtering. In addition, an automatic brush roller is installed to carry out secondary brushing of the cloth. This significantly enhances the removal of surface residues and improves the quality and efficiency of cloth regeneration.
When filtering slurries containing oil or when acid/alkaline residues are present on the filter cloth, chemical soaking using acid or alkaline solutions can be used to regenerate the cloth through immersion.
Filter cloth regeneration methods should be selected based on actual operational needs. Choosing filter cloths with good regeneration performance and applying effective cleaning techniques can help maintain stable filtration efficiency over time, reduce cloth replacement frequency, and extend the service life. This contributes to improved productivity and economic benefits for enterprises.
