Device for conducting chemical combination and efficient filter pressing in electrolytic manganese process

Abstract

The invention discloses a device for conducting chemical combination and efficient filter pressing in an electrolytic manganese process. A first inlet pipe branch is connected with an outlet pipe through a three-way cock and a centrifugal pump, a second branch is connected with the outlet pipe through the other centrifugal pump and the other three-way cock, and the two centrifugal pumps are driven by the same motor. Gears of the two three-way cocks are meshed with one another, one of the gears is driven by a drive gear to achieve rotary switching of the three-way cocks, and the two three-way cocks are vertically communicated through a center connection pipe. The inlet pipe is provided with a manganese solution launder of an inverted-cone-shaped structure in a connected mode. Two filter presses are connected with the outlet pipe through the three-way cocks after being connected in parallel. The launder is connected with an air blowing combined barrel. According to the device, the two three-way cocks are utilized cleverly, fast and convenient series-connection and parallel-connection switching operation of the centrifugal pumps is achieved, filter pressing efficiency is improved, and the device has the advantages of being simple in structure and not prone to generating error. The conical bottom of the launder is beneficial to output of the manganese solution and slag; the air blowing combined barrel utilizes an air ring body formed by a conical ring and a sieve mesh cylindrical ring cleverly, the oxygen dissolving capacity of the combined barrel is greatly improved, and oxidizing reaction is facilitated.

Description

technical field [0001] The invention relates to a device for compounding and high-efficiency pressure filtration in an electrolytic manganese process. Background technique [0002] Electrolytic manganese is a hydrometallurgical process in which manganese ore is pulverized, compounded, impurity removed, blended and then electrolyzed. Compounding is the process of slurrying manganese ore powder in a compounding tank and adding sulfuric acid for chemical reaction. Compounding can obtain soluble manganese sulfate, which is convenient for later electrolysis operation. [0003] At present, the volume of the compounding tank for industrial application can reach hundreds of cubic meters. During the compounding process, it is necessary to blow air into the compounding tank to realize the oxidation and decomposition of some impurities and the overflow of some harmful gas substances, which is not only beneficial to protect the environment, but also The realization of electrolyte refin...

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Problems solved by technology

[0007] However, in the filter press operation, the existing centrifugal pumps cannot automatically adapt to such a process to achieve an ideal working state of high efficiency and high quality

Generally, when a centrifugal pump performs filter press operation, the head of the filter press is low in the early stage, but the flow rate is large, so that the motor is in an overload state, and it is easy to burn the motor; The flow rate decreases rapidly. At this time, although the motor works in a light-load and low-power state, the filter press efficiency is very low; although the filter press pump has the maximum head output state, due to the small flow rate of the filter press fluid, the filter press cannot be fully utilized. Work performance and improve work efficiency

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