Chemical combination exhausting device for reaction of manganese mineral powder with sulfuric acid

Abstract

The invention discloses a chemical combination exhausting device for a reaction of manganese mineral powder with sulfuric acid. Stirring systems are arranged in chemical combination barrels connected with a draught fan through exhaust pipes, the draught fan is tangentially connected with a rotational flow tower and then emptied, and air doors are arranged in the exhaust pipes; multiple rotational flow devices comprising large rotational flow plates, small rotational flow plates and conical hopper plates are vertically arranged in the rotational flow tower; an impeller of the draught fan adopts such a structure that blades are in a hollow reversed water droplet shape and a back plate is in a dish shape; the contour line of the draught fan is an involute. Carbon dioxide gas produced due to the reaction of the manganese mineral powder with the sulfuric acid is exhausted in real time by the aid of the draught fan and the rotational flow devices, the reaction is facilitated, carried mineral powder is effectively recovered through rotational gas flows, and energy saving and emission reduction are realized; with the adoption of the structure that the blades are in the hollow reversed water droplet shape and the back plate is in the dish shape, dust on the impeller of the draught fan is cleaned in real time, the strength of the impeller of the draught fan is enhanced, the stability is enhanced, accidents caused by accumulation of the dust are effectively eliminated, and the device has the broad application prospect.

Description

technical field [0001] The invention relates to a combined air extraction device, in particular to a combined air extraction device for reacting manganese ore powder that does not accumulate dust in a fan and 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 waste an...

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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