Anhydrous lithium hydroxide production device and use method thereof

A technology of anhydrous lithium hydroxide and production equipment, applied in the directions of lithium oxide;/hydroxide, dry gas arrangement, lighting and heating equipment, etc., can solve the problem of high dust content processing difficulties, reduced product yield, and production efficiency Low problems, to achieve the effect of low product yield, stable product quality, and large environmental pollution

CN110762961APending Publication Date: 2020-02-07河北云瑞化工设备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-02-07

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Abstract

The invention relates to an anhydrous lithium hydroxide production device. The device comprises a disc type continuous dryer, a dust remover and a dehumidifier, wherein the disc type continuous dryeris connected with the dust remover, the dust remover is connected with the dehumidifier, a pipeline between the dust remover and the dehumidifier is connected with an inert gas pipeline, a plurality of inert gas inlets are formed in the side wall of the disc type continuous dryer, and a dehumidifier extraction pipeline is connected with the inert gas inlets. The invention further provides a use method of the device, wherein the method comprises the following steps that nitrogen gas is introduced into the inert gas pipeline, and the nitrogen gas is heated and then enters the disc type continuous dryer; evaporated moisture and a small amount of dust in wet materials are brought out through the hot nitrogen gas, and then the nitrogen gas returns to a system for recycling after dust removal and dehumidifying are carried out; and the dried materials are discharged after being cooled. The device and the method can achieve the purposes of stable product quality, high yield and low energy consumption while lithium hydroxide drying is completed.
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Description

technical field

[0001] The invention belongs to the technical field of anhydrous lithium hydroxide production, and in particular relates to an anhydrous lithium hydroxide production device and a use method thereof. Background technique

[0002] Lithium hydroxide hydrate is mainly used in the preparation of lithium-based grease and alkaline battery electrolyte additive; but when lithium hydroxide is used as a carbon dioxide absorbent, it is more beneficial to use lithium hydroxide anhydrate. In this case, as a pretreatment, a treatment of heating and dehydrating lithium hydroxide hydrate is performed.

[0003] Lithium hydroxide carbon dioxide absorbent has been more and more widely used due to its advantages of light weight and high absorption efficiency. In addition, since anhydrous lithium hydroxide can generate hydrated lithium hydroxide after absorbing water, it can absorb part of the generated water in the process of absorbing carbon dioxide, and the use of it in the ma...

Examples

Embodiment Construction

[0021] In order to further understand the content of the present invention, the present invention will be described in detail below in conjunction with specific examples.

[0022] Such as figure 1 As shown, the present invention provides a kind of anhydrous lithium hydroxide production device, comprises disc type continuous drier 2, deduster 4 and dehumidifier 6, and the upper end of described disc type continuous drier 2 is a head type design, so The upper end of the disc continuous dryer 2 is provided with a feed port and a first exhaust port, and the feed port and the first exhaust port are all arranged on the head structure, which can provide a large amount of moisture space, to facilitate the discharge of moisture, and further reduce the dust entrainment in the tail gas. The lower end of the disc continuous dryer 2 is provided with a discharge port, the feed port is used to add lithium hydroxide wet material, and the first exhaust port It is used to discharge the gas car...