Full-automatic production system for lithium manganate positive electrode material

Abstract

The invention discloses a full-automatic production system for a lithium manganate positive electrode material. The full-automatic production system comprises a material cabin, a metering cabin, a granulation machine, rotary furnaces, a crushing machine, mixing equipment, a vibration sieve and iron removing equipment, which are connected in sequence, wherein the material cabin is provided with vacuum conveying equipment; raw materials are conveyed into the material cabin through the vacuum conveying equipment; at least one spraying nozzle is arranged at the top of the granulation machine; a first intermediate bin is arranged between the rotary furnace and the granulating machine; a second intermediate bin is arranged between the rotary furnace and the crushing machine. By adopting the full-automatic production system for the lithium manganate positive electrode material, disclosed by the invention, the sintering productivity can be greatly improved, metal foreign matters are not introduced into materials and the rate of finished products is improved.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a fully automatic production system for lithium manganate cathode materials. Background technique [0002] At present, the mainstream production process of lithium manganese oxide, the cathode material of lithium batteries, is: raw material compounding, sintering in push plate furnace or roller furnace, coarse crushing, fine crushing, batch mixing, screening, iron removal, packaging, etc. [0003] Among them, the most energy-consuming equipment in the production process is the sintering furnace, mainly pusher furnace or roller furnace, which are static sintering, and need to use trays and saggers to hold materials. On the one hand, the demand for trays or saggers The loss is relatively large. On the other hand, a large part of the heat needs to be taken away by the sagger, and the utilization rate of energy is low; On the one hand, the pulverization process causes a pa...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a fully automatic production system for lithium manganate positive electrode materials to solve the problems of high sintering energy consumption, long cycle, short service life of sagger, complicated operation, low production efficiency, and poor heating in the prior art. The uniformity, heat preservation and cooling time are not easy to control, the degree of automation is low, and the effective utilization rate of lithium manganate material is low after over-grinding, and the total cost is increased.

Images