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Stirring device for leaching of manganese ore

A stirring device and manganese ore technology, applied in mixers, instruments, dissolving and other directions with rotating stirring devices, can solve the problem of high energy consumption of rigid baffle stirring devices, influence of metal manganese electrolyte leaching rate, and reduce electrolyte leaching. rate and other problems, to achieve ideal mixing effect, simple structure and low equipment cost.

Inactive Publication Date: 2014-06-11
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the drop of the liquid level in the center of the tank for manganese ore leaching in the prior art, it is easy to form a vortex, and the center of the vortex sinks deeper with the increase of the impeller speed, reduces the leaching rate of the electrolyte, and avoids the problem caused by the improved technology. Insufficient local mixing of ore pulp, affected leaching rate of metal manganese electrolyte and high energy consumption of rigid baffle stirring device

Method used

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  • Stirring device for leaching of manganese ore
  • Stirring device for leaching of manganese ore
  • Stirring device for leaching of manganese ore

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0035] Experimental steps:

[0036] 1. Take 1 ton of manganese carbonate (rhodochrosite) to prepare ore slurry;

[0037] 2. Put the pulp obtained in step 1 in the stirring device of the present invention, set the stirring speed at 200rpm (rpm=revolutions per minute, revolutions per minute), carry out electrolysis, and leach the electrolyte;

[0038] 3. When the leaching rate of the electrolyte obtained in step 2 is 85%, compare the power consumption results of the built-in rigid baffle agitating and combining tank with the built-in flexible baffle agitating and combining tank as shown in Table 1.

specific Embodiment 2

[0039] Experimental steps:

[0040] 1. Take 1 ton of manganese carbonate (rhodochrosite) to prepare ore slurry;

[0041] 2. Put the obtained ore pulp in step 1 in the stirring device of the present invention, set the stirring speed as 300rpm, carry out electrolysis, and leach the electrolyte;

[0042] 3. When the leaching rate of the electrolyte obtained in step 2 is 85%, compare the power consumption results of the built-in rigid baffle agitating and combining tank with the built-in flexible baffle agitating and combining tank as shown in Table 1.

specific Embodiment 3

[0043] Experimental steps:

[0044] 1. Take 1 ton of manganese carbonate (rhodochrosite) to prepare ore slurry;

[0045] 2. Put the obtained ore pulp in step 1 in the stirring device of the present invention, set the stirring speed as 400rpm, carry out electrolysis, and leach the electrolyte;

[0046] 3. When the leaching rate of the electrolyte obtained in step 2 is 85%, compare the power consumption results of the built-in rigid baffle agitating and combining tank with the built-in flexible baffle agitating and combining tank as shown in Table 1.

[0047] Table 1: Power consumption when the leaching rate of the electrolyte is 85%

[0048]

[0049] In Table 1 above: h is hour; kW h is kilowatt hour.

[0050] As described in Table 1, in Example 1, under the same leaching rate, the electrolysis time required for the built-in rigid baffle stirring and compounding barrel was 19.58h, and the power consumption was 23.38kW h. The electrolysis time required for the barrel is 18...

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Abstract

The invention provides a stirring device for leaching of a manganese ore, aiming at solving problems that a vortex is easy to be formed due to reduction of a central liquid level of a slot body, the center of the vortex is sunken more deeply along with the increase of a rotation speed of an impeller and the leaching rate of electrolyte is reduced in the stirring device for the leaching of the manganese ore, and a part of ore slurry is insufficiently mixed, the leaching rate of metal manganese electrolyte is influenced and the power consumption of a rigid baffle stirring device is overhigh after a technique is improved in the prior art. The stirring device for the leaching of the manganese ore comprises the slot body, a stirring shaft, the impeller and baffles, wherein the baffles are vertically, longitudinally and equidistantly arranged on the inner wall of the slot body and are made of flexible materials. The stirring device for the leaching of the manganese ore, disclosed by the invention, can reduce power consumption and improve the leaching rate of the metal manganese electrolyte at the same time that a circulating dead area formed by an electrolyte fluid at the back of the baffles of a stirring compound barrel under the same operation conditions is eliminated, and also has the advantages of simple structure, convenience for manufacturing and low device cost.

Description

technical field [0001] The invention relates to a stirring device, in particular to a stirring device for manganese ore leaching. Background technique [0002] In enterprises that produce electrolytic manganese metal (referred to as electrolytic manganese) by electrolysis, most of them use manganese carbonate (rhodochrosite) as raw material, prepare them into pulp and put them in a mixing tank to leach the electrolyte, and then perform electrolysis. In the prior art, the stirring device for manganese ore leaching is composed of an upright cylindrical tank and a stirring impeller installed in its center. This stirring device for manganese ore leaching has the following disadvantages: [0003] 1. When the speed of the impeller is high, the fluid in the tank will rush to the tank wall due to centrifugal force, the liquid level near the tank wall will rise, and the liquid level in the center of the tank body will drop, forming a vortex, or called "swirl"; [0004] 2. As the spe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F7/16C22B3/04C25C1/10
Inventor 刘作华曾启琴陶长元孙瑞祥宁伟征刘仁龙廖军陈超彭浩杜军范兴孙大贵左赵宏李泽全谢昭明
Owner CHONGQING UNIV
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