CN111908796A - Tailing slag microcrystalline glass and production method thereof - Google Patents
Tailing slag microcrystalline glass and production method thereof Download PDFInfo
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- CN111908796A CN111908796A CN202010883228.5A CN202010883228A CN111908796A CN 111908796 A CN111908796 A CN 111908796A CN 202010883228 A CN202010883228 A CN 202010883228A CN 111908796 A CN111908796 A CN 111908796A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
- C03C10/0063—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing waste materials, e.g. slags
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
- C03B32/02—Thermal crystallisation, e.g. for crystallising glass bodies into glass-ceramic articles
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- Crystallography & Structural Chemistry (AREA)
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Abstract
The invention discloses tail slag microcrystalline glass which comprises the following raw materials in parts by weight: blast furnace slag, steel slag, chromium slag, phosphorus slag, titanium slag, ash slag, iron tailings, gold tailings and copper tailings are uniformly mixed together to obtain a microcrystalline glass raw material; putting the mixed raw materials into a melting furnace for melting, and melting the mixed raw materials into uniform glass bodies at high temperature; directly putting the glass body into water for water quenching to form glass particles, and drying, sieving and grading the glass particles to form glass particle materials with different particle sizes; then uniformly paving the glass particles in a refractory mould according to a preset thickness, placing the refractory mould on a kiln car, sending the refractory mould into a kiln for crystallization heat treatment, sintering the glass particles into a whole, and finishing a crystallization process; then annealing to obtain the original microcrystalline glass plate, grinding and polishing to obtain the finished microcrystalline glass product. The tail slag glass ceramics and the production method thereof have low development cost, remarkable social and economic benefits and wide application prospect.
Description
Technical Field
The invention relates to the technical field of tail slag glass ceramics, in particular to tail slag glass ceramics and a production method thereof.
Background
The microcrystalline glass is also called microcrystalline stone or glass ceramic, is a multi-product solid material obtained by controlling crystallization of glass, and is firstly developed and commercialized by corning corporation in 1957. Compared with the traditional ceramics and glass, the microcrystalline glass has excellent high temperature resistance, wear resistance, chemical corrosion resistance, high strength, high hardness, high insulativity, low dielectric loss and other excellent performances, and can be widely applied to the fields of national defense, aerospace, electronics, biomedicine, building materials and the like.
In recent years, with the rapid development of the economy of China, the environmental pressure brought by the development activity of mineral resources is getting bigger and bigger, and the discharge amount of industrial solid wastes is getting bigger and bigger. The tailings are a large category of industrial solid wastes, and refer to the remaining part of the ores after being separated from useful metals by crushing, screening, grinding, grading, gravity separation, flotation and other separation process flows in a concentrating mill of a mine, and generally take SiO2 as a main component. According to incomplete statistics, the total accumulated stockpiling amount of tailings generated by mineral resource development in China reaches more than 110 hundred million tons, the annual output reaches 12 hundred million tons, and the total accumulated stockpiling amount accounts for more than 50 percent of the tailings output in the world and is 21 percent. At present, most of tailings are stacked in the open air besides being used as building material raw materials such as cement, wall bricks and the like with low added values, so that the occupied land, the environmental pollution and the potential safety hazard are caused, and the resources are wasted.
So we propose a tailing slag glass ceramics and a method for producing the same so as to solve the problems set forth above.
Disclosure of Invention
The invention aims to provide tailing slag glass ceramics and a production method thereof, which aim to solve the problems of land occupation, environmental pollution, potential safety hazard and resource waste caused by the fact that most of the conventional tailings are stacked in the open air, which are proposed by the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the tail slag glass ceramics comprises the following raw materials: blast furnace slag, steel slag, chromium slag, phosphorus slag, titanium slag, ash slag, iron tailings, gold tailings and copper tailings.
Preferably, the granularity of the blast furnace slag, the steel slag, the chromium slag, the phosphorous slag, the titanium slag, the ash slag, the iron tailings, the gold tailings and the copper tailings is below 100 meshes.
Preferably, the raw material composition is one or a combination of more of blast furnace slag, steel slag, chromium slag, phosphorus slag, titanium slag, ash slag, iron tailings, gold tailings and copper tailings.
Preferably, the proportioning components among the raw materials are equal.
A production method of tail slag glass ceramics comprises the following steps:
(1) uniformly mixing the raw materials with equal proportion to obtain a microcrystalline glass raw material;
(2) putting the mixed raw materials into a melting furnace for melting, and melting the mixed raw materials into uniform glass bodies at high temperature;
(3) directly putting the glass body into water for water quenching to form glass particles, and drying, sieving and grading the glass particles to form glass particle materials with different particle sizes;
(4) then uniformly paving the glass particles in a refractory mould according to a preset thickness, placing the refractory mould on a kiln car, sending the refractory mould into a kiln for crystallization heat treatment, sintering the glass particles into a whole, and finishing a crystallization process;
(5) then annealing to obtain the original microcrystalline glass plate, grinding and polishing to obtain the finished microcrystalline glass product.
Preferably, the temperature inside the melting furnace in the step (2) is 1450-.
Preferably, the kiln car with the glass particles in the step (4) is sent to a tunnel kiln or a shuttle kiln for crystallization heat treatment, the temperature is preserved for 60-90min within the range of 900 ℃ below zero of 800-.
Preferably, the annealing temperature in the step (5) is between 650-750 ℃.
Compared with the prior art, the invention has the beneficial effects that: the tail slag glass ceramics and the production method thereof have low development cost, can produce high-performance glass ceramics building and decorative materials, and can consume a large amount of various tail slag, thereby enabling the tail slag to become a secondary resource which can be recycled, changing waste into valuable, realizing the sustainable development of mineral resources, having remarkable social and economic benefits and having wide application prospect.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The invention provides a technical scheme that: the tail slag glass ceramics comprises the following raw materials: the blast furnace slag, the steel slag, the chromium slag, the phosphorus slag, the titanium slag, the ash slag, the iron tailings, the gold tailings and the copper tailings, wherein the granularity of the blast furnace slag, the steel slag, the chromium slag, the phosphorus slag, the titanium slag, the ash slag, the iron tailings, the gold tailings and the copper tailings is below 100 meshes, the raw materials are composed of one or more of the blast furnace slag, the steel slag, the chromium slag, the phosphorus slag, the titanium slag, the ash slag, the iron tailings, the gold tailings and the copper tailings, and the mixture ratio of the.
A production method of tail slag glass ceramics comprises the following steps:
(1) uniformly mixing the raw materials with equal proportion to obtain a microcrystalline glass raw material;
(2) the mixed raw materials are put into a melting furnace for melting, the temperature inside the melting furnace is 1450-;
(3) directly putting the glass body into water for water quenching to form glass particles, and drying, sieving and grading the glass particles to form glass particle materials with different particle sizes;
(4) then uniformly paving the glass particles in a refractory mould according to a preset thickness, placing the refractory mould on a kiln car, sending the kiln car with the glass particles into a tunnel kiln or a shuttle kiln for crystallization heat treatment, preserving heat for 60-90min within the range of 800-1150 ℃, integrating the glass particles into a whole, preserving heat for 60-120min within the range of 1050-1150 ℃ and finishing the crystallization process;
(5) then annealing to obtain the microcrystalline glass original plate, wherein the annealing temperature is between 650-750 ℃, and then grinding and polishing to obtain the microcrystalline glass finished product.
Example two
The invention provides a technical scheme that: the tail slag glass ceramics comprises the following raw materials: the granularity of the blast furnace slag, the steel slag, the titanium slag, the ash and the iron tailings is below 100 meshes, and the ratio of the raw materials of the blast furnace slag, the steel slag, the titanium slag, the ash and the iron tailings is 1:1:1: 1.
A production method of tail slag glass ceramics comprises the following steps:
(1) uniformly mixing the raw materials with equal proportion to obtain a microcrystalline glass raw material;
(2) the mixed raw materials are put into a melting furnace for melting, the temperature inside the melting furnace is 1450 ℃, and the mixed raw materials are melted into uniform glass bodies at high temperature;
(3) directly putting the glass body into water for water quenching to form glass particles, and drying, sieving and grading the glass particles to form glass particle materials with different particle sizes;
(4) then uniformly paving the glass particles in a refractory mould according to a preset thickness, placing the refractory mould on a kiln car, sending the kiln car with the glass particles into a tunnel kiln or a shuttle kiln for crystallization heat treatment, preserving heat for 90min within 800 ℃, sintering the glass particles into a whole, preserving heat for 120min within 1050 ℃, and finishing the crystallization process;
(5) then annealing to obtain the original microcrystalline glass plate, and grinding and polishing to obtain the finished microcrystalline glass product, wherein the annealing temperature is 650 ℃.
EXAMPLE III
The invention provides a technical scheme that: the tail slag glass ceramics comprises the following raw materials: the granularity of the chromium slag, the phosphorus slag, the titanium slag, the gold tailings and the copper tailings is below 100 meshes, and the ratio of the raw materials of the chromium slag, the phosphorus slag, the titanium slag, the gold tailings and the copper tailings is 1:1:1: 1.
A production method of tail slag glass ceramics comprises the following steps:
(1) uniformly mixing the raw materials with equal proportion to obtain a microcrystalline glass raw material;
(2) putting the mixed raw materials into a melting furnace for melting, wherein the temperature in the melting furnace is 1500 ℃, and melting the mixed raw materials into uniform glass bodies at high temperature;
(3) directly putting the glass body into water for water quenching to form glass particles, and drying, sieving and grading the glass particles to form glass particle materials with different particle sizes;
(4) then uniformly paving the glass particles in a refractory mould according to a preset thickness, placing the refractory mould on a kiln car, sending the kiln car with the glass particles into a tunnel kiln or a shuttle kiln for crystallization heat treatment, preserving heat for 75min within the range of 850 ℃, sintering the glass particles into a whole, preserving heat for 90min within the range of 1100 ℃, and finishing the crystallization process;
(5) then annealing to obtain the original microcrystalline glass plate, and grinding and polishing to obtain the finished microcrystalline glass product, wherein the annealing temperature is 700 ℃.
Example four
The invention provides a technical scheme that: the tail slag glass ceramics comprises the following raw materials: the granularity of the titanium slag, the ash slag, the iron tailings, the gold tailings and the copper tailings is below 100 meshes, and the ratio of the raw materials of the titanium slag, the ash slag, the iron tailings, the gold tailings and the copper tailings is 1:1:1:1: 1.
A production method of tail slag glass ceramics comprises the following steps:
(1) uniformly mixing the raw materials with equal proportion to obtain a microcrystalline glass raw material;
(2) the mixed raw materials are put into a melting furnace for melting, the temperature inside the melting furnace is 1550 ℃, and the mixed raw materials are melted into uniform glass bodies at high temperature;
(3) directly putting the glass body into water for water quenching to form glass particles, and drying, sieving and grading the glass particles to form glass particle materials with different particle sizes;
(4) then uniformly paving the glass particles in a refractory mould according to a preset thickness, placing the refractory mould on a kiln car, sending the kiln car with the glass particles into a tunnel kiln or a shuttle kiln for crystallization heat treatment, preserving heat for 60min within 900 ℃, sintering the glass particles into a whole, preserving heat for 60min within 1150 ℃, and finishing the crystallization process;
(5) then annealing to obtain the original microcrystalline glass plate, and grinding and polishing to obtain the finished microcrystalline glass product, wherein the annealing temperature is 750 ℃.
EXAMPLE five
The invention provides a technical scheme that: the tail slag glass ceramics comprises the following raw materials: the granularity of the blast furnace slag, the steel slag, the chromium slag, the phosphorus slag, the titanium slag and the ash slag is below 100 meshes, and the proportion of the raw materials of the blast furnace slag, the steel slag, the chromium slag, the phosphorus slag, the titanium slag and the ash slag is 1:1:1: 1.
A production method of tail slag glass ceramics comprises the following steps:
(1) uniformly mixing the raw materials with equal proportion to obtain a microcrystalline glass raw material;
(2) the mixed raw materials are put into a melting furnace for melting, the temperature inside the melting furnace is 1550 ℃, and the mixed raw materials are melted into uniform glass bodies at high temperature;
(3) directly putting the glass body into water for water quenching to form glass particles, and drying, sieving and grading the glass particles to form glass particle materials with different particle sizes;
(4) then uniformly paving the glass particles in a refractory mould according to a preset thickness, placing the refractory mould on a kiln car, sending the kiln car with the glass particles into a tunnel kiln or a shuttle kiln for crystallization heat treatment, preserving heat for 90min within 900 ℃, sintering the glass particles into a whole, preserving heat for 120min within 1150 ℃, and finishing the crystallization process;
(5) then annealing to obtain the original microcrystalline glass plate, and grinding and polishing to obtain the finished microcrystalline glass product, wherein the annealing temperature is 750 ℃.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (8)
1. The tail slag glass ceramics are characterized by comprising the following raw materials: blast furnace slag, steel slag, chromium slag, phosphorus slag, titanium slag, ash slag, iron tailings, gold tailings and copper tailings.
2. The tailing slag glass-ceramic according to claim 1, characterized in that: the granularity of the blast furnace slag, the steel slag, the chromium slag, the phosphorus slag, the titanium slag, the ash slag, the iron tailings, the gold tailings and the copper tailings is below 100 meshes.
3. The tailing slag glass-ceramic according to claim 1, characterized in that: the raw material composition is one or a combination of a plurality of blast furnace slag, steel slag, chromium slag, phosphorous slag, titanium slag, ash slag, iron tailings, gold tailings and copper tailings.
4. The tailing slag glass-ceramic according to claim 1, characterized in that: the proportioning components among the raw materials are equal.
5. The production method of the tailing slag glass ceramics is characterized by comprising the following steps:
(1) uniformly mixing the raw materials with equal proportion to obtain a microcrystalline glass raw material;
(2) putting the mixed raw materials into a melting furnace for melting, and melting the mixed raw materials into uniform glass bodies at high temperature;
(3) directly putting the glass body into water for water quenching to form glass particles, and drying, sieving and grading the glass particles to form glass particle materials with different particle sizes;
(4) then uniformly paving the glass particles in a refractory mould according to a preset thickness, placing the refractory mould on a kiln car, sending the refractory mould into a kiln for crystallization heat treatment, sintering the glass particles into a whole, and finishing a crystallization process;
(5) then annealing to obtain the original microcrystalline glass plate, grinding and polishing to obtain the finished microcrystalline glass product.
6. The production method of tailing slag glass-ceramic according to claim 5, characterized in that: the temperature inside the melting furnace in the step (2) is 1450-.
7. The production method of tailing slag glass-ceramic according to claim 1, characterized in that: and (4) conveying the kiln car with the glass particles in the step (4) into a tunnel kiln or a shuttle kiln for crystallization heat treatment, preserving heat for 60-90min within the range of 800-1150 ℃, integrating the glass particles into a whole, and preserving heat for 60-120min within the range of 1050-1150 ℃ to finish the crystallization process.
8. The production method of tailing slag glass-ceramic according to claim 5, characterized in that: the annealing temperature in the step (5) is between 650-750 ℃.
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| CN202010883228.5A CN111908796A (en) | 2020-08-28 | 2020-08-28 | Tailing slag microcrystalline glass and production method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113200682A (en) * | 2021-04-12 | 2021-08-03 | 内蒙古科技大学 | Method for preparing microcrystalline glass by adopting ferrochrome slag |
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