Method for producing spinel glass ceramic with aluminum ash as main raw material

A main raw material, glass-ceramic technology, applied in the field of glass-ceramic preparation, can solve the problems of heavy pollution, high energy consumption, and poor utilization of waste, and achieve excellent wear resistance and solve environmental hazards Effect

Inactive Publication Date: 2018-09-11
四川一名微晶科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the current recycling of aluminum ash is only to recycle the elemental aluminum in it, the waste generated has not been well utilized, and the recycling process produces great pollution and high energy consumption.

Method used

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  • Method for producing spinel glass ceramic with aluminum ash as main raw material
  • Method for producing spinel glass ceramic with aluminum ash as main raw material
  • Method for producing spinel glass ceramic with aluminum ash as main raw material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1. Accurately weigh the following raw materials and send them to the mixer for mixing (mixing time is 4 minutes, add water 27Kg.).

[0038]

[0039] 2. Send the above-mentioned mixture into the all-electric melting furnace for melting. The melting temperature is 1550°C. After clarification and homogenization, the melted glass enters the material channel through the liquid flow hole and the ascending channel, and the temperature drops to 1350°C, and then enters the calendering process. The working pool is calendered and formed by a calender (forming temperature 1150°C), and then enters the annealing kiln.

[0040] 3. Anneal the rolled glass plate annealing kiln. The temperature of entering the kiln is 700°C. After holding at 650°C for 15 minutes, cool down to 550°C at a rate of 3°C / min, and then cool down to 300°C at a rate of 9°C / min. ℃, and then cooled to 40℃ after 60 minutes to exit the kiln, and then enter the cold end cutting line. The cold end cutting line cuts...

Embodiment 2

[0043] 1. Accurately weigh the following raw materials and send them to the mixer for mixing (mixing time is 4 minutes, add 20Kg of water).

[0044] raw material name

Sodium fluorosilicate

soda ash

Light burnt magnesium

aluminum gray

Quartz sand

Weight (kg)

24.2

40.8

95

292.6

96.7

[0045] 2. Send the above-mentioned mixture into the all-electric melting furnace for melting. The melting temperature is 1500°C. After clarification and homogenization, the melted glass enters the material channel through the liquid flow hole and the ascending channel, and the temperature drops to 1300°C, and then enters the calendering process. The working pool enters the annealing kiln after being calendered and formed by a calender (forming temperature 1050°C).

[0046] 3. Anneal the rolled glass plate annealing kiln. The temperature of entering the kiln is 650°C. After holding at 650°C for 15 minutes, cool down to 580°C at a rate of 3°C / mi...

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Abstract

The invention discloses a method for producing spinel glass ceramic with aluminum ash as the main raw material. The method includes the following steps of firstly, selecting raw materials; secondly, mixing the raw materials; thirdly, melting the mixed materials; fourthly, conducting roll-forming; fifthly, conducting annealing; sixthly, conducting crystallizing. When the glass ceramic is prepared with aluminum ash as the main raw material, the utilization rate reaches 50% or above, waste is turned into wealth, and the environmental hazards caused by the aluminum ash are effectively solved. Spinel serves as the principal crystalline phase of the prepared glass ceramic, amphibole serves as the auxiliary crystalline phase of the prepared glass ceramic, the Moh's hardness can reach the 8th level at most, the wear resistance is excellent, and the glass ceramic can be used as a wear-resistant and anti-corrosion material. The produced spinel series glass ceramic has the product tensile strength of 400-500 MPa and the bending strength of 70-90 MPa.

Description

technical field [0001] The invention relates to a method for preparing glass-ceramics, in particular to a method for producing spinel glass-ceramics by using aluminum ash as the main raw material. Background technique [0002] Slag glass-ceramic is made of metallurgical slag, tailings and other industrial waste slag and natural minerals as the main raw materials, introducing a certain amount of crystal nucleus agent, flux and other auxiliary raw materials, and is made through batching, melting, forming, annealing, crystallization and other processes a microcrystalline material. With the acceleration of my country's industrialization process, various slags and tailings are discharged and accumulated in large quantities, causing extremely serious environmental problems. [0003] At present, most glass-ceramics on the market use natural minerals or pure chemical substances as the main raw materials, which have high production costs and low raw material reserves, while slag gla...

Claims

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Application Information

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IPC IPC(8): C03C10/02C03C6/10C03B25/00C03B32/02
CPCC03C10/0063C03B25/00C03B32/02C03C1/002
Inventor 秦刚秦小平彭文钢徐国梁邓龚铃姜小元楼贤春王刚琳
Owner 四川一名微晶科技股份有限公司
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