Device for centrifugal separation of calcium and magnesium ions in manganese sulfate solution after crystallization

Abstract

The invention discloses a device for centrifugal separation of calcium and magnesium ions in a manganese sulfate solution after crystallization. The device comprises a cooling tank and a crystallizing tank, wherein the cooling tank adopts a jacketed type long barrel-shaped structure composed of an inner barrel and an outer barrel and is longitudinally arranged, and the section of the inner barrel is in the shape of a regular polygon; a rotating shaft longitudinally penetrates through the inner barrel, and fiber brush bundles are embedded into a bristle drum on the rotating shaft; the inner barrel of the cooling tank, an air pipe, an exhaust fan and a cyclone separator form an air cooling loop; a jacket, a water return pipe, a water cooling tower, a circulating water pump and a water inlet pipe form a water cooling circulation loop; the jacket of the cooling tank is connected with a water hammer vibrator composed of a crankshaft connecting rod and a piston; a solution to-be-crystallized inlet pipe is arranged above the cooling tank, and the crystallizing tank is connected to a position below the cooling tank; the conic bottom of the crystallizing tank is connected with a spiral centrifugal separator through a mortar pump, and a centrifugal liquid temporary storage slot and a crystal slot are formed in the centrifugal separator. The device is unique and ingenious in design and strong in practicality, is a perfect-function device for removing the calcium and magnesium ions in the manganese sulfate solution, and has a wide application prospect.

Description

technical field [0001] The invention relates to a device for centrifugally separating calcium and magnesium ions in manganese sulfate solution after cooling and crystallizing. Background technique [0002] Xiangxi Autonomous Prefecture is the main production area of ​​manganese, and it is also one of the famous "manganese triangles" in my country. It has the reputation of "Oriental Manganese Capital". However, most of the manganese ore resources in this area are symbiotic with calcium and magnesium ions. [0003] The production and processing of manganese is generally to mix the manganese ore with sulfuric acid after powdering, and then press filter and electrolyze. Due to the existence of a large amount of calcium and magnesium ions in the manganese sulfate solution, it not only wastes electricity, affects the purity of manganese products, but also easily causes the blockage of the electrolytic cell. , affecting production, therefore, the removal of calcium and magnesium su...

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Problems solved by technology

[0003] The production and processing of manganese is generally to mix the manganese ore with sulfuric acid after powdering, and then press filter and electrolyze. Due to the existence of a large amount of calcium and magnesium ions in the manganese sulfate solution, it not only wastes electricity, affects the purity of manganese products, but also easily causes the blockage of the electrolytic cell. , affecting production, therefore, the removal of calcium and magnesium sulfate in manganese sulfate solution has important practical application value and industrial significance

[0004] Calcium-magnesium sulfate has low solubility at low temperatures, and its solubility is more sensitive to temperature. Therefore, the calcium-magnesium sulfate in the manganese sulfate solution can be crystallized and removed by cooling, but the prior art lacks the calcium-magnesium sulfate in the manganese sulfate solution. A complete set of equipment for separation and removal of magnesium ions after crystallization. The breakthrough of the complete set of equipment needs to overcome many technical bottlenecks such as the small effective heat exchange area and low efficiency of the inner wall of the cooling tank, the difficulty of separation and removal after crystallization on the inner wall of the cooling tank, and the easy blockage of the crystallization tank.

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