Graphite negative electrode material sintering grate coke section structure and graphite negative electrode material sintering furnace

Abstract

The invention discloses a coke-exhaust section structure for a graphite cathode material sintering furnace. The coke-exhaust section structure comprises a base, main body parts and heating elements. The main body parts are arranged on left and right sides of the base. The heating elements are arranged in the main body parts. The coke exhaust structure further comprises an inner isolation container located between the main body parts. Refractory material is arranged between left and right sides of the inner isolation container and the main body parts. The interior of the inner isolation container is provided with a heating cavity and a kiln cavity, both of which are mutually separated. Heating parts of the heating elements are located into the heating cavity. The kiln cavity is internally provided with a product conveying device. The invention further discloses the graphite cathode material sintering furnace. The graphite cathode material sintering furnace comprises a coke exhaust section, a temperature increasing section, a high temperature section and a cooling section. The coke-exhaust section structure is arranged on the coke exhaust section. The coke-exhaust section structure for the graphite cathode material sintering furnace and the graphite cathode material sintering furnace has following advantages: the coke-exhaust section structure is simple and capable of effectively preventing exhaust gas from corroding refractory material and the heating elements; service lifetime of equipment is prolonged; and cost of maintenance is saved.

Description

technical field [0001] The invention relates to sintering equipment for lithium ion battery negative electrode materials, in particular to a graphite negative electrode material sintering grate coke section structure and a graphite negative electrode material sintering furnace. Background technique [0002] In recent years, with the rapid development of electronic equipment, the demand for large-scale energy storage, electric vehicles, electric tools, portable electronic equipment, etc. has increased, and the demand for negative electrode materials has increased accordingly. Graphite negative electrode material sintering furnace is a special sintering equipment for lithium battery negative electrode materials. It is a continuous sintering electric kiln. The negative electrode material sintering furnace directly affects the performance of the negative electrode material, thus determining the final performance of the lithium-ion battery. [0003] Graphite powder contains subs...

AI Technical Summary

Problems solved by technology

Coating the anti-corrosion layer on the refractory material can reduce the erosion of exhaust gas to a certain extent, but after sintering for a period of time, the anti-corrosion effect of the coating is getting worse and worse under high temperature environment, which cannot fundamentally solve the problem of erosion; After the heating element is added with a ceramic sleeve, although the exhaust gas cannot corrode the heating element, the slag formed by the condensation of the exhaust gas will adhere to the surface of the ceramic sleeve, which will affect the heating effect, increase the load on the heating element, shorten its service life, and improve cost

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