A flue gas purification device in the secondary lead smelting process

Abstract

The invention discloses a flue gas purification device in the secondary lead smelting process, which comprises a flue gas purification box, a first smoke inlet pipe, a second smoke inlet pipe, and a smoke inlet valve; the bottom surface of the flue gas purification box is provided with a valve installation through hole, A fixed pipe is fixed along the valve installation through hole, and a partition is fixed and fixed on the side of the flue gas purification box; the first smoke inlet pipe is slidably installed in the fixed pipe; the top surface of the second smoke inlet pipe is vertically fixed with the first rotating shaft; The smoke valve includes a fixed ring, a valve, and an installation box. The installation box is fixed in the fixed ring, and the valve is movably installed in the fixed ring; The pipe rises, and the flue gas enters the closed purification box and then sinks into the lime water from above. The opening and closing of the valve and the rising of the flue gas pipe are controlled uniformly. The water will not flow back, and the valve will not open until the smoke inlet pipe is connected to the valve, so as to prevent the leakage of smoke and dust.

Description

technical field [0001] The invention belongs to the technical field of smoke and dust collection, and in particular relates to a smoke purification device in the smelting process of secondary lead. Background technique [0002] With the development of the national economy, the use of lead is also increasing. Therefore, lead waste parts and waste materials are bound to increase day by day. The processing and production of recycled lead-lead-zinc ore is to use these lead waste parts and waste materials as raw materials to produce refined lead , lead-based alloys or lead compounds, according to the data published by the World Bureau of Metal Statistics, 51% of the world's total lead production is used to produce batteries, while 40% of the total lead production is obtained from the production of recycled lead, and waste batteries account for 90% of the raw materials for lead production. In addition to lead batteries, recycled lead raw materials include various waste lead plates...

AI Technical Summary

Problems solved by technology

A large amount of smoke and dust will be generated in the lead smelting process, which will inevitably lead to aggravated air pollution and bring adverse effects on human living environment and physical health. At present, the common flue gas dust removal method in the lead smelting process is to remove sulfur dioxide in the flue gas by lime water Gas and large-volume particles are purified by directly connecting the flue gas pipe to lime water. The disadvantage of this method is that the placement of the flue gas pipe and lime water cannot be handled, which may cause the lime water to flow back directly into the flue gas. In the pipeline, if the flue gas pipeline is set above the lime water, the purification will not be complete

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