Collecting device of smoke in electrolysis

Abstract

The invention discloses a collecting device of smoke in electrolysis. The collecting device comprises a main first main smoke pipe, a second main smoke pipe, a first smoke branch pipe, a second smoke branch pipe and a main smoke pipe. The collecting device is characterized in that the first ends of the first main smoke pipe and the second main smoke pipe are respectively closed, and the second end of the first smoke branch pipe and the second end of the second smoke branch pipe are communicated; the first end of the first smoke branch pipe is communicated with the first main smoke pipe, and the first end of the second smoke branch pipe is communicated with the second main smoke pipe; and the first end of the main smoke pipe is connected to the connecting position of the first main smoke pipe and the second main smoke pipe, and the second of the main smoke pipe is connected to an exhaust fan. According to the collecting device disclosed by the invention, the negative pressure distribution of all the smoke pipes is uniform, so that the smoke in electrolysis is conveniently collected; and in addition, the heat exchange area of the smoke in electrolysis is enlarged, the radiation of the smoke in electrolysis is convenient and the radiating efficiency of the collecting device is improved.

Description

Technical field [0001] The invention relates to the technical field of electrolysis equipment manufacturing, in particular to a collection device for electrolysis flue gas. Background technique [0002] During the aluminum electrolysis production process, a large amount of flue gas will be generated. The flue gas from the electrolysis must be pumped away by the negative pressure generated by the exhaust fan through the gas collecting device on the electrolysis cell and the corresponding pipe network system, and collected into the purification equipment and fresh Alumina is mixed to achieve the purpose of purification and recycling. In this process, the flue gas pipeline is the equipment for flue gas capture and flue gas flow. The advantages and disadvantages of the layout of the flue gas pipeline are directly related to the energy loss of the flue gas in the pipeline. The traditional flue gas pipe layout is that the electrolysis branch pipe is connected to the main pipe, and th...

AI Technical Summary

Problems solved by technology

The problems of the traditional layout are that the negative pressure distribution is uneven, the negative pressure loss at the far end (from the smoke exhaust fan) is large, the smoke collection rate decreases, and the load of the smoke exhaust fan is large

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