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Method for manufacturing glass-ceramics

A manufacturing method and technology for glass-ceramic, applied in glass production and other directions, can solve the problems of secondary pollution and high production cost, and achieve the effects of eliminating pollution, shortening processing time, and reducing tax

Inactive Publication Date: 2011-07-27
内蒙古科韵环保材料股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, many of the above methods need to add chemical raw materials such as additives and nucleating agents in the manufacturing process, and there are problems such as secondary pollution and high production costs.
At the same time, in the preparation process, the melting casting method and the melting sintering method are generally used to prepare architectural glass-ceramic products. Both of these two processes need to go through two high-temperature processes (glass melting, microcrystallization treatment) and consume a lot of energy.

Method used

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  • Method for manufacturing glass-ceramics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] For its process, see figure 1 ,

[0026] 1. Powder preparation

[0027] The rare earth tailings used were taken from Baotou Steel Rare Earth Plant. The chemical composition of rare earth tailings is shown in Table 1; the chemical composition of coal gangue is shown in Table 2; the chemical composition of feldspar is shown in Table 3. Weigh the rare earth tailings, coal gangue, and feldspar according to the ratio of raw materials:balls 1:2, and put them into ball milling tanks (the total volume of the materials should be less than 2 / 3 of the volume of the ball milling tank), and ball mill for 24 hours.

[0028] 2. Screening

[0029] The rare earth tailings powder, coal gangue, and feldspar powder raw materials after ball milling are respectively passed through a 325-mesh sieve, and the prepared powder is put into a powder bag for later use.

[0030] 3. Ingredients

[0031] Rare earth tailings powder: feldspar: coal gangue were weighed in a weight ratio of 100:48:12, ...

Embodiment 2

[0042] For its process, see figure 1 ,

[0043] 1. Powder preparation

[0044] The rare earth tailings used were taken from Baotou Steel Rare Earth Plant. The chemical composition of rare earth tailings is shown in Table 1; the chemical composition of coal gangue is shown in Table 2; the chemical composition of feldspar is shown in Table 3. Weigh the rare earth tailings, coal gangue, and feldspar according to the ratio of raw materials:balls 1:2, and put them into ball milling tanks (the total volume of the materials should be less than 2 / 3 of the volume of the ball milling tank), and ball mill for 24 hours.

[0045] 2. Screening

[0046] The rare earth tailings powder, coal gangue, and feldspar powder raw materials after ball milling are respectively passed through a 325-mesh sieve, and the prepared powder is put into a powder bag for later use.

[0047] 3. Ingredients

[0048] Rare earth tailings powder: feldspar: coal gangue were weighed in a weight ratio of 100:26:17, ...

Embodiment 3

[0059] For its process, see figure 1 ,

[0060] 1. Powder preparation

[0061] The rare earth tailings used were taken from Baotou Steel Rare Earth Plant. The chemical composition of rare earth tailings is shown in Table 1; the chemical composition of coal gangue is shown in Table 2; the chemical composition of feldspar is shown in Table 3; the chemical composition of limestone is shown in Table 4. Weigh the rare earth tailings, coal gangue, feldspar, and limestone according to the ratio of raw materials:balls 1:2, and put them into ball milling tanks (the total volume of the materials should be less than 2 / 3 of the volume of the ball milling tank), and mill for 24 hours.

[0062] 2. Screening

[0063] After the ball milling, the rare earth tailings powder, limestone, coal gangue, and feldspar powder raw materials are respectively passed through a 325-mesh sieve, and the prepared powder is put into a powder bag for later use.

[0064] 3. Ingredients

[0065] Weigh rare ear...

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Abstract

The invention relates to a microcrystalline glass preparation method, which belongs to the comprehensive utilization of industrial wastes. The invention is characterized in that rare earth tailing powder, feldspar and coal gangue are respectively filled in a ball mill tank in weight proportion of 100 to 8.5-25 to 9.5-17 to 8-22. Through the screening, the proportioning, the material mixing, the granulation, the molding, the drying, the sintering and the micro-crystallization, a main demanded crystal phase is fully precipitated from the sintered material. The powder obtained from the granulation is ball shaped. The molding pressure is 30-100MPa. When the micro-crystallization thermal treatment is finished, the sintered green body lowers to be at the room temperature with the furnace. The invention changes wastes into valuables, solves the secondary pollutions, improves the utilization ratio of industrial wastes, shortens the processing time, improves the working efficiency and reduces the energy consumption. The technology is simple, and the production cost is low. The nucleation activation energy is lowered, the nucleation and the crystallization of glass are promoted, and the micro-glass is finer. Therefore, the mechanical performance of the microcrystalline glass is improved and the cost for producing the tailings microcrystalline glass is greatly lowered.

Description

1. Technical field: [0001] The invention relates to a method for manufacturing glass-ceramics, specifically, it is a method for manufacturing glass-ceramics by utilizing pure natural raw materials such as rare tailings, coal gangue, feldspar and limestone, and belongs to the comprehensive utilization of industrial waste. 2. Background technology: [0002] With the development of the economy, the demand for coal and rare earth is increasing, and its output is increasing day by day, followed by the increase of industrial waste such as rare beneficiation tailings and coal gangue. These wastes not only occupy a large amount of land, but also cause serious pollution to surrounding water resources and soil. In recent years, some people have used fly ash to produce high value-added products - glass-ceramic plates for architectural decoration. The amount of fly ash is more than 60%. The use of fly ash to produce glass-ceramic can reduce raw material cost and glass melting temperat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/00C03C6/10C03B32/02
CPCY02P40/57
Inventor 李保卫李超贾晓林张雪峰高占勇
Owner 内蒙古科韵环保材料股份公司
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