A kind of preparation method and preparation device of electrolytic manganese dioxide
A technology of electrolytic manganese dioxide and preparation equipment, which is applied in the direction of electrolytic components, electrolytic process, grain processing, etc., can solve the problems of long grinding time, multi-energy, and affecting the grinding efficiency of manganese dioxide fragments, so as to save electric energy and reduce The effect of empty grinding and shortening the grinding time
Active Publication Date: 2022-07-05
广西下田锰矿有限责任公司
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Problems solved by technology
This grinding method needs to grind almost all the manganese dioxide fragments in the ball mill into qualified powder, which requires a long grinding time and consumes more energy. The manganese dioxide powder that is first ground to participate in all subsequent The grinding process, that is, the manganese dioxide powder is ground, and the accumulation of manganese dioxide powder in the ball mill will affect the grinding efficiency of the remaining manganese dioxide fragments
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[0029] In order to make those skilled in the art better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.
[0030] see Figure 1-7 , the preparation method of a kind of electrolytic manganese dioxide provided by the embodiment of the present invention comprises the following steps:
[0031] (1) comprise the operation that is arranged successively: prepare the leaching solution of thick manganese sulfate, the leaching solution is introduced in the electrolytic cell after neutralization, impurity removal to carry out electrolysis, and the manganese dioxide solid block is generated on the anode, and the manganese dioxide solid block is successively removed from the anode Stripping and rinsing to obtain manganese dioxide fragments;
[0032] (2) introducing the manganese dioxide fragments into a ball mill for ball milling to obtain manganese dioxide particles, an...
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Abstract
The invention discloses a preparation method and preparation device of electrolytic manganese dioxide, and relates to the technical field of electrolytic manganese dioxide. , peeling and rinsing to obtain manganese dioxide fragments; (2) introducing the manganese dioxide fragments into a ball mill for ball milling to obtain manganese dioxide particles. The manganese particles are screened out to obtain manganese dioxide powder, and the manganese dioxide particles whose particle size is larger than the preset particle size continue to be ball-milled. In the present invention, when the manganese dioxide particles are larger than the preset particle size value, they will continue to be ground, and when the manganese dioxide particles are not larger than the preset particle size value, they can be automatically screened out from the ball mill, that is, qualified two Manganese oxide powder reduces empty grinding of manganese dioxide powder, which can effectively shorten grinding time and save electricity.
Description
technical field [0001] The invention relates to the technical field of electrolytic manganese dioxide, in particular to a preparation method and preparation device of electrolytic manganese dioxide. Background technique [0002] Electrolytic manganese dioxide is an excellent depolarizer for batteries. Compared with dry batteries produced by natural discharge manganese dioxide, electrolytic manganese dioxide has better performance. Electrolytic manganese dioxide has become a very important raw material in the battery industry. The whole process of manganese production can generally be divided into three parts: liquid preparation, electrolysis, and finished product treatment, which are specifically divided into: leaching, oxidation iron removal, neutralization, solid-liquid separation, sulfide removal of heavy metals, electrolysis, peeling, crushing, rinsing and washing. Acid, drying, milling, blending and metered packaging. [0003] For example, the application publication n...
Claims
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IPC IPC(8): B02C17/10B02C17/22B02C23/16B02C17/18C25B1/21C25B1/50
CPCB02C17/10B02C17/22B02C23/16B02C17/18B02C17/1855C25B1/21B02C2023/165Y02E60/10
Inventor 罗冰陈其胜涂忠益覃丽丽黄朝辉梁彩玲
Owner 广西下田锰矿有限责任公司