Combination exhausting system adopting reaction of manganese ore powder and sulfuric acid

Abstract

The invention discloses a combination exhausting system adopting a reaction of manganese ore powder and sulfuric acid. The combination exhausting system is characterized in that stirring systems are arranged in combination barrels which are connected with an induced draft fan through exhausting pipes, the induced draft fan is tangentially connected with a cyclone tower for exhausting, and throttles are arranged in the exhausting pipes; multiple groups of cyclones comprising large cyclone plates, small cyclone plates and cone hopper plates are vertically arranged in the cyclone tower; an impeller of the induced draft fan has hollow wedge-shaped blades; the shape contour of the induced draft fan is involute. By the aid of the induced draft fan and the cyclones, carbon dioxide gas produced by the reaction of the manganese ore powder and sulfuric acid is exhausted in real time, reaction proceeding is facilitated, carried ore powder is recovered effectively through gas cyclone, and energy conservation and emission reduction are realized; with adoption of the blades adopting the hollow wedge-shaped structure, dust on the impeller of the induced draft fan is cleaned in real time, the impeller strength of the induced draft fan is improved, the stability is enhanced, safety accidents caused by dust accumulation are eradicated effectively, and the combination exhausting system has broad application prospects.

Description

technical field [0001] The invention relates to a combined air extraction system, in particular to a combined air extraction system in which manganese ore powder which does not accumulate dust in a fan reacts with sulfuric acid. Background technique [0002] Combining a certain amount of manganese ore powder with sulfuric acid is a necessary process step in the electrolytic manganese industry. The main reaction is the reaction between sulfuric acid and manganese carbonate to generate manganese sulfate and a large amount of gaseous carbon dioxide. Due to the large amount of carbon dioxide produced, in order to promote The reaction proceeds in the positive direction, usually requiring the design of a powerful exhaust system to discharge carbon dioxide. Since the exhaust system requires a particularly large amount of air, the air flow often contains a large amount of mineral powder dust. Therefore, in addition to the exhaust, the mineral powder needs to be recycled to avoid was...

AI Technical Summary

Problems solved by technology

Once part of the hardened dust is shaken off by vibration, it will immediately leave the dynamic rotation balance of the induced draft fan, and then generate strong vibration, which may cause serious personnel and equipment safety accidents

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