A kind of waste and old sagger restoration paint and its application method

Abstract

The invention provides a waste and old sagger restoration paint and a method for using the same. The waste and old sagger restoration paint comprises the following raw material components in parts by weight: 30-70 parts of fused white corundum powder, 1 part-70 parts of mullite powder 10 parts, bonded clay 8-30 parts, spodumene 0-5 parts, zirconia 1-5 parts, α-Al 2 o 3 5-25 parts of fine powder, 1-20 parts of magnesium aluminum spinel powder, 2-8 parts of sol, 1-5 parts of binder, 0.1-1 part of water reducing agent and 16-22 parts of water. The method for using the used sagger restoration paint includes preparing the repair paint, polishing the waste sagger and repairing the waste sagger to obtain a regenerated new sagger. The repaired waste saggers can not only be put into use again, but also have high strength, strong corrosion resistance and good thermal shock resistance. The invention improves the recycling rate of waste saggers, and largely reduces the problems of difficult stacking and environmental pollution.

Description

technical field [0001] The invention relates to the technical field of recycling waste saggers, in particular to a paint for repairing waste saggers and a method for using the same. Background technique [0002] As a new generation of green and environmentally friendly products, lithium-ion batteries have been widely used in new energy vehicles, which can effectively alleviate the energy crisis. Lithium-ion battery cathode materials have a crucial impact on the energy density and cycle life of lithium-ion batteries, and are an important part of lithium-ion batteries. The lithium battery cathode material must be roasted at a high temperature in a kiln during the production process. The specific process is to use a sagger as a raw material (specifically including lithium salts (such as LiCO 3 、LiNO 3 and LiOH·H 2 O, etc.), manganese salts (such as MnCO 3 and Mn(NO 3 ) 2 etc.), manganese oxides (such as electrolytic MnO 2 , Mn 2 o 3 and Mn 3 o 4 etc.) and nickel-coba...

AI Technical Summary

Problems solved by technology

Although this patent provides a technical solution for reusing waste saggars, it also has the following technical problems: (1) The saggers have high hardness and strong stability, and require a strong grinding process to achieve waste saggars. Requirements for reuse of saggers; (2) The proportion of waste saggar powder used again is very small, and there are still a large number of powders that cannot be processed; (3) The interior of the waste saggar has been infiltrated with some reactive ions to make it microscopic The structure has changed, which will affect the quality of the recycled sagger and shorten the service life of the recycled sagger

Although this patent has designed a device for cutting waste saggars, which is convenient for cutting waste saggars, it does not mention how to deal with the separated waste saggar fragments and various harmful metals

In addition, for the relevant factories, there is no big difference between the accumulation of waste saggars after they are divided and the direct accumulation. On the contrary, how to deal with the harmful metal powder scraped off during the cutting process of waste saggars is another new problem

[0005] In summary, there is an urgent need for a waste sagger restoration paint and its application method to solve the problems of low recycling rate, difficult stacking and serious environmental pollution of waste saggers in the prior art.

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