Acheson Furnace for Producing Graphite Negative Electrode Materials and Its Furnace Charging Process

Abstract

The invention provides an Acheson furnace for producing graphite anode materials and a furnace charging technology of the furnace, and belongs to the technical field of anode material preparation. The Acheson furnace for producing the graphite anode materials comprises a furnace body formed by a furnace base, a furnace head wall, a furnace tail wall and furnace wall plates in an enclosing mode; a quartz sand layer and a carbon black layer are sequentially arranged on the upper portion of the furnace base from bottom to top, a furnace core is arranged on the upper portion of the carbon black layer, the furnace core comprises multiple layers of crucibles, a calcined coke layer arranged on the outer surfaces of the crucibles and a petroleum coke layer arranged on the outer surface of the calcined coke layer, forming plates are arranged on the top and the side faces of the furnace core, a thermal insulation material layer is arranged on the top and the side faces of the forming plates, and a gas-collecting hood is arranged on the top of the furnace body. According to the Acheson furnace for producing the graphite anode materials and the furnace charging technology of the furnace, the furnace core of the Acheson furnace can reach higher temperature, the graphitization degree of the products is higher, power consumption for obtaining each ton of the anode materials is reduced, the yield of carburant is doubled, cooling of the furnace body is rapid, product discharge is rapid, and the environmental protecting and energy saving effects are significant.

Description

technical field [0001] The invention belongs to the technical field of preparation of negative electrode materials, and in particular relates to an Acheson furnace for producing graphite negative electrode materials and a furnace charging process thereof. Background technique [0002] Lithium-ion battery is a representative of contemporary high-performance batteries, a green new energy product, widely used in information, telecommunications and power industries. With the development of international productivity, the rapid consumption of oil resources, and the pollution caused by the exhaust of a large number of fuel vehicles in cities, the environmental problems have become increasingly prominent. In order to truly solve the exhaust pollution of automobiles, the voice of developing zero-emission electric vehicles is getting louder and louder. The key to the performance of electric vehicles lies in the battery, and lithium-ion batteries are the ideal power source for electri...

AI Technical Summary

Problems solved by technology

However, there are still many problems in the Acheson graphitization process. At present, most of the graphitization furnaces simply use calcined coke as the resistance material, but the calcined coke cannot be in contact with water, so the cooling method is limited. Natural cooling can only be used to reduce the temperature. Slow, which prolongs the time of release from the furnace; secondly, the calcined coke has the problems of large loss and pollution, and the operation process is not easy to control; and after high temperature treatment, the quality of the by-product of the calcined coke - carburant is low

In actual production, the amount of calcined coke only reaches about 1 / 3 of the volume of the furnace body, resulting in low output and unstable quality of auxiliary materials obtained from a single furnace

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