Water washing tank for titanium dioxide processing

Abstract

The present invention relates to a water washing tank for titanium dioxide processing. The water washing tank comprises: a top plate, a filter plate and a filter cloth for plugging the filter plate, wherein the filter cloth is mounted on the filter plate by a rubber ring, the bottom surface of the filter plate is provided with an air inlet, a sealing mechanism is mounted in the air inlet, and thesealing mechanism is used to plug the air inlet; a limiting member, wherein the limiting member is a detachable structure, and is used for fixing the rubber ring and the filter cloth on the filter plate; and an air blasting mechanism, wherein the air blasting mechanism is communicated with the air inlet, and the air blasting mechanism is used for opening the sealing mechanism, blasting air into the filter plate and blowing off metatitanic acid on the filter cloth. The water washing tank for titanium dioxide processing discharges airflow from the inside of the filter plate to the outside in order to effectively blow off the metatitanic acid on the filter cloth, so the falling rate of metatitanic acid is greatly increased, thereby the discharge amount of metatitanic acid is high, and wasteis reduced.

Description

technical field [0001] The invention relates to a washing pool for processing titanium dioxide, which belongs to the technical field of titanium dioxide production. Background technique [0002] Titanium dioxide is widely used in various structural surface coatings, paper coatings and fillers, plastics and elastomers, and other uses include ceramics, glass, catalysts, coated fabrics, printing inks, roofing granules and fluxes; [0003] Metatitanic acid slurry processing is a step in the production of titanium dioxide. The function of the washing tank is to separate the metatitanic acid slurry from solid to liquid (the solid phase is metatitanic acid, and the liquid phase is wastewater containing sulfuric acid). The separated solid The phase is blocked by the filter cloth and adheres to the surface of the filter cloth; [0004] When the current filter cloth is installed, the filter cloth is first covered on the filter plate and then embedded with a rubber ring. The rubber ri...

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Problems solved by technology

[0004] When the current filter cloth is installed, the filter cloth is first covered on the filter plate and then embedded with a rubber ring. The rubber ring can avoid the reaction of metatitanic acid, but the fixing strength of the rubber ring is limited. The impact of the filter cloth, workers need to use water pipes to slowly rinse the filter cloth, so that the metatitanic acid on the filter cloth is washed away, but this method is low in efficiency, and some metatitanic acid will remain on the filter cloth, which causes partial The waste of titanic acid also affects the service life of the filter cloth and takes a long time

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