Compounding, dedusting and pumping system for manganese mineral powder and sulfuric acid reaction

Abstract

The invention discloses a compounding, dedusting and pumping system for a manganese mineral powder and sulfuric acid reaction. A stirring system is arranged in each compounding barrel. The compounding barrels are connected with a cyclone dedusting device through pumping pipes. The cyclone dedusting device is connected with an induced draft fan through an air pipe. An air outlet of the induced draft fan is connected with a chimney for evacuation. An air door is arranged in each pumping pipe. A recovery pool is arranged below the cyclone dedusting device. Blades of an impeller of the induced draft fan are arranged symmetrical about the center of an impeller shaft in the radial direction in a radial manner, and dust can be cleared up in time through centrifugal force. By the adoption of the compounding, dedusting and pumping system, carried mineral powder can be recovered effectively, and energy saving and emission reduction are achieved; and more importantly, the disassembly technology of the induced draft fan is improved greatly, so that pressure applied to the shaft shoulder end face of a screw by components similar to a nut component can be eliminated easily when the induced draft fan is disassembled, and the problem that the induced draft fan is locked continuously and automatically and cannot be disassembled easily under the load action due to threaded assembly is solved effectively; and the compounding, dedusting and pumping system is especially suitable for convenient and fast disassembly of a large-scale fan which is locked in a threaded manner.

Description

technical field [0001] The invention relates to a combined air extraction system, in particular to a combined dust removal and air extraction system in which manganese ore powder reacts with sulfuric acid, which does not accumulate dust in a fan and is easy to disassemble and overhaul. 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 exh...

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Problems solved by technology

In the actual assembly of shafts and holes with transmission threads, in order to achieve large load-bearing functions, the size of the threaded shafts and matching nut-like components are relatively large, and it is often easy and convenient to screw in during assembly, and It can realize the automatic and continuous locking of the bearing capacity during use, so it is very reliable, but when it is disassembled, the assembly is often very tight, and disassembly is very difficult. It is particularly important to realize simple and easy disassembly under this condition

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