Repairing method of filter cloth of filter plate type filter press

Abstract

The invention discloses a repairing method of filter cloth of a filter plate type filter press. The repairing method comprises the following steps: Step 1, cutting out a PE (Polyethylene) membrane according to the size of the filter cloth, and adhering the PE membrane to the filter cloth piece through grume; Step 2, removing the PE membrane on the broken or easily broken area of the filter cloth piece; Step 3, placing the filter cloth piece onto a conveyor belt of a coating machine, controlling the temperature of a drying oven in the coating machine to be 130-150 DEG C, and coating the filter cloth piece with a PVC (Polyvinyl Chloride) glue solution from a glue injection port at the upper end of the drying oven; Step 4, using an compression roller on the coating machine to control the thickness of the PVC glue solution coated on the PE membrane to be 0.1-0.2 mm; Step 5, discharging the filter cloth piece from the coating machine, and removing the residual PE membrane on the filter cloth piece. The repairing method of filter cloth of the filter plate type filter press disclosed by the invention can coat the easily worn or worn area of the filter cloth to improve the wear-resisting effect of the filter cloth, prolong the service life of the filter cloth and reduce the cost.

Description

technical field [0001] The invention belongs to the field of filter cloth for filter machines, and in particular relates to a method for repairing filter cloth of a filter plate type filter press. Background technique [0002] Filter plate filter presses are widely used in coal mines, metal mines and other industries; the filter cloth used on filter plate filter presses is used in a large amount, the frequency of use is high, and the pressure is relatively high; due to the high pressure during use, Often holes are formed due to wear and extrusion, resulting in the replacement of filter cloth; due to the high airtightness and compression resistance of this product, especially in the face of gold ore and other precious metals, the requirements are higher. A little damage will affect the quality of subsequent products, but the cost of replacing the filter cloth is high only because of small holes; for the easily damaged or damaged areas on the filter cloth, the common method i...

AI Technical Summary

Problems solved by technology

[0002] Filter plate filter presses are widely used in coal mines, metal mines and other industries; the filter cloth used on filter plate filter presses is used in a large amount, the frequency of use is high, and the pressure is relatively high; due to the high pressure during use, Often holes are formed due to wear and extrusion, resulting in the replacement of filter cloth; due to the high airtightness and compressive capacity of this product, especially in the face of gold mines and other precious metals, the requirements are higher. A little damage will affect the quality of subsequent products, but the cost of replacing the filter cloth is high only because of small holes; for the easily damaged or damaged areas on the filter cloth, the common method is to repair by manual coating; but after manual coating The covered area has a large thickness. During use, the gap between two adjacent filter plates is large, which is prone to liquid leakage.

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