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Waste sagger repairing coating and use method thereof

A technology for repairing paint and saggers, which is applied in the field of recycling waste saggers, can solve the problems of shortening the service life of recycled saggers, affecting the quality of recycled saggers, and not mentioning harmful metals, etc., and achieves strong oxidation resistance and corrosion resistance , Good thermal shock stability, and the effect of reducing the difficulty of stacking

Active Publication Date: 2021-06-18
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this patent provides a technical solution for reusing waste saggers, it also has the following technical problems: (1) the sagger has high hardness and strong stability, and requires a strong grinding technology to achieve the use of waste saggers. (2) The proportion of waste casket 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 casket has been infiltrated with some reactive ions to make it microscopic The structure has changed, which will affect the quality of the reclaimed castor and shorten the service life of the reclaimed castor
Although the patent has designed a device for cutting waste saggers to facilitate the cutting of waste saggers, it does not mention how to deal with the separated waste sagger fragments and various harmful metals
In addition, for the relevant factories, there is not much difference between the accumulation of waste saggers after division and the direct accumulation. On the contrary, how to deal with the harmful metal powder scraped off during the cutting process of waste saggers 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

Method used

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  • Waste sagger repairing coating and use method thereof
  • Waste sagger repairing coating and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A paint for repairing waste saggers, comprising the following raw material components in parts by weight: fused white corundum powder (fused white corundum powder is made of industrial alumina powder, which is smelted at a high temperature above 2000°C in an electric arc and then cooled. 30 parts, 5 parts of mullite powder, 15 parts of bonded clay (the particle size is 325 mesh, and the production site is Guangxi), spodumene 3 parts, 4 parts of zirconia, α-Al 2 o 3 20 parts of fine powder, 18 parts of magnesium aluminum spinel powder, 4 parts of sol, 5 parts of binder, 0.3 part of water reducing agent and 18 parts of water.

[0030] The binder is 2 parts of dextrin, 1 part of U.S. rubber powder and 2 parts of polyurethane, wherein the model of U.S. rubber powder is TH-2008.

[0031] The sol is aluminum sol.

[0032] The water reducer is sodium tripolyphosphate.

[0033] The particle size of the fused white corundum powder is 300 mesh, the particle size of the mullit...

Embodiment 2

[0046] The difference from Example 1 is that the waste sagger restoration paint includes the following raw material components in parts by weight: 50 parts of fused white corundum powder, 4 parts of mullite powder, 12 parts of bonded clay, and 4 parts of spodumene , 2 parts of zirconia, α-Al 2 o 3 10 parts of fine powder, 15 parts of magnesium aluminum spinel powder, 4 parts of sol, 4 parts of binder, 0.5 part of water reducing agent and 16 parts of water.

[0047] The binder is 1 part of starch, 1 part of U.S. rubber powder and 2 parts of polyurethane, wherein the model of U.S. rubber powder is TH-2008.

[0048] The sol is silica sol.

[0049] The water reducer is sodium polyacrylate.

[0050] The particle size of the fused white corundum powder is 200 mesh.

[0051] In the step of preparing the repair paint, the stirring rate to obtain the repair paint is 1000r / min, and the stirring time is 20min.

[0052] In the step of repairing the waste saggar, the firing temperatur...

Embodiment 3

[0054] The difference from Example 1 is that the waste sagger restoration paint includes the following raw material components in parts by weight: 70 parts of fused white corundum powder, 3 parts of mullite powder, 10 parts of bonded clay, and 2 parts of spodumene , 2 parts of zirconia, α-Al 2 o 3 10 parts of fine powder, 10 parts of magnesium aluminum spinel powder, 4 parts of binder, 0.4 part of water reducing agent and 20 parts of water.

[0055] The binder is 1 part of dextrin, 2 parts of U.S. rubber powder and 1 part of polyacrylamine, wherein the model of U.S. rubber powder is TH-2008.

[0056] The water reducer is sodium hexametaphosphate.

[0057] The particle size of the fused white corundum powder is 100 mesh.

[0058] In the step of preparing the repair paint, the stirring speed for obtaining the mixed powder is 1000 r / min, and the stirring time is 2.5 hours.

[0059] In the step of preparing the repair paint, the stirring rate to obtain the repair paint is 1100...

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Abstract

The invention provides waste sagger repairing coating and a use method thereof. The waste sagger repairing coating is prepared from the following raw material components in parts by weight: 30 to 70 parts of fused white corundum powder, 1 to 10 parts of mullite powder, 8 to 30 parts of binding clay, 0 to 5 parts of spodumene, 1 to 5 parts of zirconium oxide, 5 to 25 parts of alpha-Al2O3 micro powder, 1 to 20 parts of magnesium aluminate spinel powder, 2 to 8 parts of sol, 1 to 5 parts of a binding agent, 0.1 to 1 part of a water reducing agent and 16 to 22 parts of water. The using method of the waste sagger repairing coating comprises the steps of preparing the repairing coating, polishing a waste sagger and repairing the waste sagger to obtain a regenerated new sagger. The repaired waste saggar not only can be put into use again, but also is high in strength, high in corrosion resistance and good in thermal shock resistance. The recycling rate of the waste saggars is increased, and the problems of stacking difficulty and environmental pollution are reduced to a great extent.

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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/106C04B35/622C04B41/87
CPCC04B35/106C04B35/62222C04B41/87C04B41/5048C04B2235/3463C04B2235/349C04B2235/3472C04B2235/3222C04B2235/3418C04B2235/3218C04B2235/447C04B2235/6562C04B2235/6567C04B41/5046C04B41/5042C04B41/5037C04B41/5031C04B41/5024
Inventor 程本军姚灿周长洞
Owner CENT SOUTH UNIV
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