Double-spiral-shaft continuous homogenization system for lithium battery slurry material

Abstract

The invention discloses a double-spiral-shaft continuous homogenization system for a lithium battery slurry material in the technical field of lithium battery slurry material production. The system comprises powder material storage bins, liquid storage tanks, powder material weight loss feeders, liquid metering feeding devices, a premixing conveyor, a double-spiral mixer, a slurry material iron-removal filter, a homogenizer and a slurry material defoaming treatment tank, wherein an auxiliary material feeding port and an exhaust port are formed in the double-spiral mixer; a cooling unit is connected to the outside of the double-spiral mixer; thermocouples are uniformly arranged inside the double-spiral mixer; the thermocouples are controlled by a controller; an outlet of the buffer tank isconnected with the homogenizer; and an outlet of the homogenizer is connected with the slurry material defoaming treatment tank, so that the slurry material mixing difficulty is low, and the service life of the equipment is effectively prolonged; and after iron removal by filtration and the slurry material reaches the buffer tank, slurry material vacuum defoaming and further sol are carried out, so that a binder which cannot be completely dissolved can continue to be fully dissolved, and the required fineness, solid content and viscosity of the slurry material are achieved.

Description

Technical field [0001] The invention relates to the technical field of lithium battery slurry production, in particular to a double-helical shaft continuous homogenization system for lithium battery slurry. Background technique [0002] In the field of new energy, lithium batteries are an emerging field. The preparation and production of lithium battery slurry is a very important part of the transition from lithium battery raw materials to lithium battery finished products, which has a significant impact on the charging and discharging process of lithium batteries and the performance of lithium batteries. influences. [0003] At present, the lithium battery slurry is produced by a traditional gap mixer. In the production process, most of the glue is pre-made with an adhesive, and then powder and other materials are gradually added. It adopts batch operation of batch production process and wet glue pulping method, long pulping time, poor stability, easy to pollute the environment, ...

AI Technical Summary

Problems solved by technology

[0005] However, there is no pre-mixing before the multi-screw continuous mixer is mixed, which makes the slurry mixing difficult, and damages the service life of the mixer, and the internal temperature is not easy to adjust. In addition, the slurry discharged through the slurry metal remover , still has a binder that cannot be completely dissolved, resulting in the inability of the binder to be fully dissolved, resulting in the failure of the final slurry to reach the required fineness, solid content and viscosity

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