Rotary pressure filter test device, test method and filter design method

Abstract

The invention discloses a test device for a rotary pressure filter, a test method thereof and a design method for a rotary pressure filter. The device comprises a pressure stabilizing tank, a buffer tank, a filter frame, a liquid receiving tank, an electronic scale and a stopwatch. The buffer tank is connected with the surge tank; the filter frame is placed under the buffer tank and connected with the buffer tank; the liquid contact tank is placed under the filter frame; the electronic scale is placed at the bottom of the liquid contact tank. The test method is to add a certain amount of calculated test slurry into the filter frame, then pass a certain pressure of gas into the pressure tank, and fill it into the filter frame through the buffer tank, and then open the valve at the bottom of the filter frame to measure The amount of mother liquor discharged from the filter frame is measured, and the time of the filtration process is measured. The filter cake and mother liquor after filtration are sampled and analyzed according to actual needs; and then the washing and drying processes can be carried out in sequence according to this method. The invention greatly reduces the test cost, and at the same time can simulate the actual working conditions more accurately, and obtain accurate and reliable design data.

Description

technical field [0001] The invention relates to the technical field of a rotary pressure filter in the production and preparation of PTA, in particular to a test method for a test device of a rotary pressure filter for PTA (purified terephthalic acid) and CTA (crude terephthalic acid). Background technique [0002] Rotary pressure filters are widely used and involve many industries, especially in the PTA industry, where the demand rate is higher. The difference in material characteristics has a great impact on the design and selection of pressure filters. At present, when the rotary pressure filter is designed and selected, a small rotary pressure filter testing machine is required for the test of material characteristics (this testing machine is completely designed and manufactured according to the large-scale industrialized rotary pressure filter, only the volume etc. The ratio is reduced, and all parts are not lacking, including the transmission system, so the structure i...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a rotary pressure filter test device, a test method for the rotary pressure filter test device and a design method for the rotary pressure filter, so as to solve the problem that the small rotary pressure filter test machine in the prior art cannot obtain accurate slurry Defects in material test parameters

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