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Solid-liquid separating technology

A technology of solid-liquid separation and technology, which is applied in the direction of filtration separation, separation methods, chemical instruments and methods, etc., can solve the problems of water waste, low efficiency, and failure to meet the RoHs requirements of lithium batteries, and achieve high solid-liquid separation efficiency and device structure simple effect

Inactive Publication Date: 2014-04-30
魏宇
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Problems solved by technology

[0003] In the existing technology, the materials are allowed to settle naturally to form solid-liquid separation; then the cake is washed, which will cause a great waste of water, low efficiency, and cannot meet the RoHs requirements of the lithium battery industry for the content of impurity elements

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  • Solid-liquid separating technology

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Embodiment Construction

[0012] The technical solution of the present invention will be described in detail below through a best embodiment in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the embodiment.

[0013] As shown in the figure, a solid-liquid separation technology includes a vacuum pump 1, a liquid collection tank 3 and a filter 4, the vacuum pump 1, the liquid collection tank 3 and the filter 4 are connected in series through a vacuum tube 2, and the liquid collection tank 3. A liquid discharge port is provided, and the liquid discharge port is provided with a valve.

[0014] Working principle: The vacuum pump 1 works to generate a vacuum in the liquid collection tank 3 and the vacuum tube 2, and the liquid containing impurities in the filter 4 is pumped out into the liquid collection tank 3 to ensure that the content of impurity elements in lithium carbonate is minimized, so that the material reaches The lithium battery indu...

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Abstract

The invention discloses a solid-liquid separating technology. The solid-liquid separating apparatus comprises a vacuum pump (1), a liquid collecting pot (3) and a filter (4). The vacuum pump, the liquid collecting pot and the filter are connected by a vacuum tube (2) in series. The filtering equipment solid-liquid separating apparatus provided by the invention can generate extra negative pressure internally with the effect of vacuum pump, and impurity-containing solution can be absorbed into the liquid collecting pot for filtering materials; material moisture can be dried as possible, which ensures soluble impurities between particles to be completely washed, and impurity element content in ferric phosphate to be reduced to the lowest, thereby the material can meet the RoHs requirement of impurity element content in the lithium battery industry; the apparatus has the advantages of simple structure, continuous filtering and high solid-liquid separation efficiency.

Description

technical field [0001] The invention relates to a solid-liquid separation technology in the production process of lithium manganate, in particular to a solid-liquid separation technology. Background technique [0002] Lithium manganese oxide is mainly used in power batteries for electric vehicles. The crystal structure is olivine structure, which has the characteristics of high safety and long life. It is widely used in the field of power batteries such as electric vehicles and electric tools, and the field of energy storage equipment for wind power generation systems. At present, in the production process of lithium manganese oxide, the main iron raw material is lithium carbonate. After the lithium carbonate raw material is synthesized, it is necessary to use filtering equipment to wash the material to clean a large number of impurity elements and compounds entrained in the material. [0003] In the existing technology, the materials are allowed to settle naturally to for...

Claims

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Application Information

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IPC IPC(8): B01D35/26
Inventor 魏宇
Owner 魏宇
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