Process flow of heat exchanging refined fluid

Abstract

This invention describes a process for disposing smoke from the dry-method calcination of petroleum coke. In the process, the dust-laden smoke produced by directing the calcined petroleum coke into a cooler passes a multi-tubular cyclone dust collector for the first dedusting. After the first dedusting, the collected petroleum coke dust is returned to the production system as the raw material, and the dedusted smoke enters a bag-type dust collector for the second dedusting. After the second dedusting, the collected petroleum coke dust is returned to the production system as the raw material, and the dedusted smoke is directed through a draught fan and a chimney and exhausted. This invention has such advantages as a secondary sewage disposal process, high recovery rate of the calcined petroleum coke dust, high utilization rate of the raw materials, simple facilities, small floor area and low investment.

Description

Technical field: [0001] The invention relates to a process flow for semen heat exchange of sodium aluminate solution in alumina production, in particular to a process flow for semen heat exchange without a reversing valve. Background technique: [0002] At present, in the existing technology, cold fluid is generally used for heat exchange of hot fluid semen, and heat exchange with semen is carried out through plate heat exchangers and reversing valves. However, due to the high technical requirements for manufacturing reversing valves, manufacturing is very difficult. This not only makes the existing semen heat exchange process difficult to realize, but also causes the problems of high production cost and operation cost, complex pipeline structure and difficult maintenance. Invention content: [0003] The purpose of the present invention is to provide a semen heat exchange process flow that does not use a reversing valve, has low production and operating costs, and is easy ...

AI Technical Summary

Problems solved by technology

[0002] At present, in the existing technology, cold fluid is generally used for heat exchange of hot fluid semen, and heat exchange with semen is carried out through plate heat exchangers and reversing valves. However, due to the high technical requirements for manufacturing reversing valves, manufacturing is very difficult. This not only makes it difficult to realize the existing semen heat exchange process, but also causes problems such as high production cost and operation cost, complex pipeline structure and difficult maintenance

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