Graphite dust treatment and recovery method based on double dust removal units

Abstract

The invention discloses a graphite dust treatment and recovery method based on double dust removal units. The method is used for anode baking, and comprises the following steps: setting a fan unit I to provide delivery power, generating a negative pressure airflow to deliver high-temperature graphite powder to sequentially pass through a storage unit, a pre-dusting unit, a cooling unit and a dustremoval unit I; setting a fan unit II to provide dust removal power, and generating a negative pressure airflow to deliver the graphite powder and dust in the graphite powder unloading process to passthrough a dust removal unit II; and respectively starting the fan unit I and the fan unit II to complete the graphite powder delivering and graphite powder unloading processes, and removing the dust.According to the method disclosed by the invention, operations of feeding and dust removing in the unloading process are respectively completed by virtue of switch of the double fan units and the double dust removal units, and an advanced dust removal system integrating dust pretreatment, cooling, tail gas purification and flexible control is realized; and moreover, the system is reasonable in design, scientific in structure, compact in arrangement and convenient in operation and maintenance, the dust removal efficiency is high, and purification and emission of high-pressure high-temperatureand high-concentration dust can be fully met.

Description

technical field [0001] The invention relates to the technical field of dust removal for tail gas purification treatment, in particular to a graphite dust treatment and recovery method based on double dust removal units. 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 ...

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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