Graphite dust treatment and recycling method based on double switches

Abstract

The invention discloses a graphite dust treatment and recycling method based on double switches. The method includes: setting a fan unit to provide conveying power and generate negative-pressure air flow to convey high-temperature graphite powder so as to allow the graphite powder to sequentially pass a storage unit, a pre-dust-removing unit, a cooling unit and a dust removing unit; setting a first switch device at a position between the cooling unit and the dust removing unit; setting a second switch device at a position between the storage unit and the dust removing unit; switching the on and off states of the first switch device and the second switch device to complete a graphite powder conveying process and a graphite powder discharging process and dust removing in the two processes, wherein the on and off states of the first switch device and the second switch device are opposite. The method has the advantages that dust removing in the conveying and discharging processes are completed through double-switch-device switching, and an advanced dust removing system integrating dust pretreatment, cooling, tail gas purification and flexible control is provided; the method is reasonable in procedure design, scientific in system structure, compact in system arrangement, convenient in system operation and maintenance and high in dust removing efficiency, and the purification and discharge requirements of high-pressure, high-temperature and high-concentration dust are satisfied sufficiently.

Description

technical field [0001] The invention relates to the technical field of dust removal for tail gas purification treatment, in particular to a double switch-based graphite dust treatment and recovery method. Background technique [0002] In the lithium-ion battery anode material production workshop, it is necessary to crush, grind, and sort graphite and other materials; Grind to very fine; due to the limitations of equipment and technology, it is inevitable to produce a large amount of dust in actual operation. Because these dust particles are very fine, it is difficult to settle when floating in the production workshop, which not only pollutes the workshop environment, but also affects the health of the operators in the workshop. It also poses a great threat; traditional lithium-ion battery anode material production workshop dust collectors are mostly cloth bag type and dry powder rotary type, but for very small dust particles, they will escape from the bag and cannot be compl...

AI Technical Summary

Problems solved by technology

[0002] In the lithium-ion battery anode material production workshop, it is necessary to crush, grind, and sort graphite and other materials; Grind to very fine; due to the limitations of equipment and technology, it is inevitable to produce a large amount of dust in actual operation. Because these dust particles are very fine, it is difficult to settle when floating in the production workshop, which not only pollutes the workshop environment, but also affects the health of the operators in the workshop. It also poses a great threat; traditional lithium-ion battery anode material production workshop dust collectors are mostly cloth bag type and dry powder rotary type, but for very small dust particles, they will escape from the bag and cannot be completely settled, and the dust removal effect is not ideal

[0003] In view of the characteristics of the above-mentioned flue gas, dust removal equipment is often used to achieve the purpose of dust removal, but this kind of dust removal equipment must meet the characteristics of high pressure resistance, effective cooling, multiple dust removal to ensure emission standards, etc., space is restricted, and the design must be compact and easy to operate. easy maintenance

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