A closed-circuit internal circulation device for gas collection in the process of solid-liquid separation

Abstract

A closed-circuit internal circulation device for gas collection during the solid-liquid separation process consists of a compressed gas storage tank, a pressure regulating valve, a pressure transmitter, a check valve, a pressure exhaust drying valve, a blowback valve, a clustered blowback filter, a filter Components, slag discharge valve, slurry dryer, slag conveyor, primary gas-liquid separator, primary coalescing element, gas scrubber, spray assembly, delivery pump, secondary gas-liquid separator, secondary coalescing component and high-efficiency gas filter; the closed-run slurry dryer collects the slag discharge filter cake and slag discharge gas, and further dries the filter cake to avoid the disorderly release of gas and dust; the gas-liquid separator Carry out gas-liquid coalescence and separation, avoid direct discharge of atomized gas, realize effective condensation and collection of entrained liquid in gas, and reduce subsequent processing burden; inclined corrugated plate wire mesh or packing separates gas, and spray components are toxic and harmful The gas is sprayed and absorbed to avoid the danger of direct emission of such gas.

Description

technical field [0001] This design involves a closed-circuit internal circulation device for gas collection during the solid-liquid separation process, especially for the cluster type backflushing filter, a device and method for collecting and recycling a large amount of gas consumed in the entire solid-liquid separation process by using a closed circuit, Specifically, it is a closed-circuit internal circulation device process for gas collection in the solid-liquid separation process, which belongs to the field of filtration and separation. Background technique [0002] As a fully sealed filter system, the cluster backflush filter has reliable performance and is suitable for modern industrial production equipment. It is widely used in petroleum and petrochemical, natural gas, fine chemical, pharmaceutical, electronics, food and smelting industries. All the work of the cluster backflush filter is completed in a closed vertical container, avoiding the risk of pungent odor or t...

AI Technical Summary

Problems solved by technology

[0003] 1. Use compressed gas to discharge the residual liquid from the filter and dry the filter cake, especially in the drying stage, a large amount of gas will be consumed to take away the liquid in the filter cake, so that the discharged gas will be mixed with a large amount of atomized liquid Drops, direct discharge will lose part of the liquid and affect the normal operation of subsequent equipment;

[0004] 2. For the direct discharge of toxic and harmful liquid media in the filter cake after blowback and atomization, such as ammonia, hydrogen sulfide and other gases, it will cause environmental pollution and increase the difficulty of post-processing;

[0005] 3. For the open slag discharge method, the backflush slag discharge will instantly release a large amount of backflush gas, which will affect the working environment on site

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