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Method for using granite waste to prepare raw materials for producing ceramic

A technology for granite waste and ceramics, applied in the production and application of ceramic materials, clay products, etc., can solve the problems of high residual iron content, reduce the residual iron content, facilitate the iron removal process, and reduce the difficulty of crushing

Inactive Publication Date: 2018-02-23
广西烽顺新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for preparing raw materials for ceramic production by using granite waste, which can solve the problem of excessive residual iron content in the final product obtained in the existing granite waste recycling process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1 ——Using granite waste to prepare the method for ceramic production raw material

[0025] It includes the following steps:

[0026] A, dry-grinding the granite waste material into medium stone pellets with a diameter of 40mm;

[0027] B, dry grinding the medium stone granules into 20mm small stone granules;

[0028] C, dry grinding the small stone granules into 5mm sand grains;

[0029] D, adding water to the sand and grinding it into stone slurry, the solid particle gradation of the stone slurry is:

[0030] Diameter of 1mm ~ 1.5mm: 20%;

[0031] The diameter is 2mm ~ 3mm: 50%;

[0032] More than 3mm in diameter: ≤3%;

[0033] E. Preliminary magnetic separation of the slurry in a wet electromagnetic magnetic separator with a field strength of 15,000 gauss to remove 95.9% of iron and 70% of biotite and metal substances such as magnesium, silicon, titanium, and niobium in the powder and harmful impurities;

[0034] F. Dilute the slurry obtained through...

Embodiment 2

[0037] Embodiment 2——Using granite waste to prepare the method for ceramic production raw material

[0038] It includes the following steps:

[0039] A, dry-grinding the granite waste material into medium stone pellets with a diameter of 60 mm;

[0040] B, dry grinding the medium stone granules into 40mm small stone granules;

[0041] C, dry grinding the small stone granules into 15mm sand grains;

[0042] D, adding water to the sand and grinding it into stone slurry, the solid particle gradation of the stone slurry is:

[0043] Diameter of 1mm ~ 1.5mm: 30%;

[0044] Diameter of 2mm ~ 3mm: 60%;

[0045] More than 3mm in diameter: ≤3%;

[0046] E. Preliminary magnetic separation of the slurry in a wet electromagnetic magnetic separator with a field strength of 16,000 gauss to remove 96% of iron and 90% of biotite and metal substances such as magnesium, silicon, titanium, and niobium in the powder and harmful impurities;

[0047] F. Dilute the slurry obtained through prel...

Embodiment 3

[0050] Embodiment 3——Using granite waste to prepare the method for ceramic production raw material

[0051] It includes the following steps:

[0052] A, dry-grinding the granite waste material into medium stone pellets with a diameter of 55 mm;

[0053] B, dry grinding the medium stone granules into 28mm small stone granules;

[0054] C, dry grinding the small stone granules into 10mm sand grains;

[0055] D, adding water to the sand and grinding it into stone slurry, the solid particle gradation of the stone slurry is:

[0056] Diameter of 1mm ~ 1.5mm: 28%;

[0057] Diameter of 2mm ~ 3mm: 57%;

[0058] More than 3mm in diameter: ≤3%;

[0059] E. Preliminary magnetic separation of the slurry in a wet electromagnetic magnetic separator with a field strength of 15500 gauss to remove more than 95% of iron and 88% of biotite and magnesium, silicon, titanium, niobium and other metals in the powder Substances and harmful impurities;

[0060] F. Dilute the slurry obtained throug...

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Abstract

The invention discloses a method for using granite waste to prepare raw materials for producing ceramic, and belongs to the technical field of recycling of the granite waste. The method comprises thesteps of pulverizing the granite waste in a graded mode and then adding water to grind the granite waste into stone slurry with specific grain composition; conducting preliminary magnetic separation on the stone slurry in a magnetic separator at 15,000 G-16,000 G; then diluting the stone slurry till the solid content is 20 wt%-30 wt%, and then conducting further magnetic separation on the stone slurry in a magnetic separator at 50,000 G-60,000 G; dewatering and drying the stone slurry which is subjected to further magnetic separation. By firstly pulverizing the granite waste and grinding the granite waste into the grain composition with specific size, the specific strong magnetic field of the magnetic separator is fully utilized as much as possible, the magnetic force on iron is increased,95% or above of iron is removed, and then by conducting dilution and using the specific strong magnetic field of the magnetic separator again to remove residual iron, the iron content in final products is lowered.

Description

technical field [0001] The invention belongs to the technical field of recycling granite waste, and in particular relates to a method for preparing raw materials for ceramic production by utilizing granite waste. Background technique [0002] Ceramics is a general term for pottery, stoneware, porcelain and other products that use clay as the main raw material. The so-called pottery and porcelain (ceramic) include daily-use, art, and architectural pottery. The traditional concept of ceramics refers to all artificial industrial products that use inorganic non-metallic minerals such as clay, feldspar, and quartz as raw materials. It includes various products made of clay or a mixture containing clay through kneading, shaping, and calcination. It ranges from the roughest earthenware to the finest fine pottery and porcelain. [0003] Granite slab is a high-quality building material, which is widely used in masonry and decoration of high-end and luxurious buildings and structure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132
CPCC04B33/1324Y02P40/60
Inventor 余健龙
Owner 广西烽顺新材料有限公司
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