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Continuous metering charging technology for lithium iron phosphate production

A feeding technology, lithium iron phosphate technology, applied in the field of continuous metering and feeding of lithium iron phosphate production, can solve problems such as inaccurate control of reaction feed amount, unguaranteed quality of iron phosphate products, and difficulty in real-time flow monitoring, etc. Achieve stable quality, reduce fluctuations in readings, and improve product quality

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

[0003] In the prior art, the continuous metering and feeding system of the reactor mainly uses a metering pump, and the variable eccentric mechanism adjusts the compression distance, thereby adjusting and controlling the liquid flow rate; due to the reciprocating compression liquid supply, the flow rate is in a pulsating state, which is difficult to measure through the flow meter. Real-time flow monitoring leads to inaccurate control of the reaction feed amount, and the product quality of ferric phosphate cannot be guaranteed

Method used

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  • Continuous metering charging technology for lithium iron phosphate production

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Embodiment Construction

[0012] The following describes the technical solution of the present invention in detail 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 continuous metering and feeding technology for lithium iron phosphate production includes a container 1 and a flow meter 4, the container 1 is connected to the flow meter 4 through a pipeline, the container is higher than the flow meter, and the container is provided with a liquid inlet 2. The container is provided with a liquid discharge port 3 higher than the bottom surface of the container. The liquid discharge port 3 is a part of the liquid discharge pipe arranged inside the container. The flow meter 2 is a glass rotameter, and the flow meter 4 The outlet is connected to the reactor 5.

[0014] Working principle: The container replenishes the reaction liquid through the liquid inlet at all times, ...

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Abstract

The invention relates to a continuous metering charging technology for lithium iron phosphate production. The continuous metering charging system comprises a container (1) and a flowmeter (4), and the container is connected with the flowmeter by pipeline, and the container is higher than the flowmeter; the container is provided with a liquid inlet (2), and the container is provided with a liquid outlet (3) which is higher than the bottom of the container. According to the technology scheme, the continuous metering charging system can accurately control the amount of the liquid which enters into the reaction vessel with accurate metering, thereby improving quality of the lithium iron phosphate and stabilizing the quality.

Description

technical field [0001] The invention relates to a continuous metering and feeding technology for lithium iron phosphate production, in particular to a continuous metering and feeding technology. Background technique [0002] Lithium iron phosphate (LiFePO 4 ) is mainly used for 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 iron phosphate, the main iron raw material is iron phosphate. In the synthesis process of ferric phosphate raw materials, it is necessary to use a reactor for continuous feeding reaction. In order to produce high-quality raw material products, the continuous reaction volume must be strictly controlled. [0003] In the prior art, the continu...

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Application Information

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IPC IPC(8): B01J4/02
Inventor 魏宇
Owner 魏宇
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