CN1168683C - Technological process for preparing glass ceramics by using liquid slag from power plant - Google Patents
Technological process for preparing glass ceramics by using liquid slag from power plant Download PDFInfo
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- CN1168683C CN1168683C CNB011441852A CN01144185A CN1168683C CN 1168683 C CN1168683 C CN 1168683C CN B011441852 A CNB011441852 A CN B011441852A CN 01144185 A CN01144185 A CN 01144185A CN 1168683 C CN1168683 C CN 1168683C
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- slag
- liquid slag
- power plant
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- glass
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Abstract
The present invention discloses a technological method for preparing nucleated glass by using liquid slag of power plants, which relates to a nucleated glass manufacturing technology. The present invention is characterized in that the liquid slag is firstly washed by using water, dried and pulverized, and then is processed by forming and nucleating; nucleated blanks can be formed into the products of the nucleated glass after being cut and milled. In the present invention, the products of the nucleated glass can be obtained by directly using molten liquid slag which is processed by using heat insulation, clarification, calendering shaping and nucleation. The liquid slag of the power plants, which is adopted in the present invention, exists in a glass state, has high activity, and can be directly made into the nucleated glass which has good crystallite and favorable performance additionally; the primary crystal phase of the nucleated glass is anorthite, which has folding strength of 35 to 80MPa. In the technology, no additive is added; the secondary melting process of raw material is eliminated; the utilization rate of the slag is 100%; thus, the present invention has the advantages of low energy consumption and low investment cost.
Description
Technical field
The present invention relates to a kind of processing method of utilizing liquid slag from power plant to prepare devitrified glass, belong to devitrified glass manufacturing technology field.
Background technology
Devitrified glass claims glass-ceramic again, is glass is made its crystallization and a kind of polycrystalline material of obtaining through certain thermal treatment, and its crystalline phase is introduced by crystal growth mutually from uniform glass, and glassy phase gets up a large amount of trickle crystal combination.Crystallizing glass sheet material have physical strength height, corrosion-resistant, wear-resisting, color and luster evenly, do not absorb water, premium properties such as easy fracture, shock resistance, texture be not good, be widely used in fields such as building, finishing.Just because of can a large amount of waste residue utilizations be got up, the scientific research of devitrified glass, trial-production, production have increasing development prospect, cinder microcrystalline glass is called as cross-centennial novel material, devitrified glass is listed in the strategic development emphasis of comprehensive utilization of resources and environment protection treating, belongs to the category of cleaner production.
The main slag that waste residue microcrystal glass preparation is at present selected for use is tungsten ore mine tailing, aluminium manufacturer's red mud, liquid copper scum, flyash, kaolin mine tailing, asbestos tailings, blast-furnace slag, antimony slag, steel slag.As the disclosed method of Chinese patent publication number CN1180671A.When the slakin devitrified glass, all be according to selected component preparation raw material, add portions additive, found into glass metal again and carry out shrend, carry out moulding and thermal treatment then, energy consumption is big, the cost of investment height.In its cinder microcrystalline glass manufacturing processed, the slag addition content is mostly in the 50-60% scope.Up to the present, not direct employing liquid slag from power plant carries out disposable production.
Summary of the invention
The objective of the invention is to propose a kind of processing method of utilizing liquid slag from power plant to prepare devitrified glass, make the disposable making devitrified glass of liquid slag, improve the liquid slag from power plant addition content, save required furnace equipment and the energy consumption of molten glass liquid, reduce cost of investment.
For achieving the above object, the liquid slag from power plant that utilizes that the present invention proposes prepares the processing method of devitrified glass, it is characterized in that it comprises the steps: according to this
(1) at first power plant's shrend liquid slag is washed, drying, SiO in the described liquid slag
2, Al
2O
3, CaO content is 85-90%;
(2) above-mentioned drying is good slag charge is pulverized, and its specific surface area is 0.1-0.35m
2/ g;
(3) be to carry out moulding under the condition of 50-100MPa with above-mentioned fine powder material at pressure;
(4) forming composition is carried out micritization and handle, intensification, cooling rate are 2-4 ℃/min, and nucleation temperature is 900-990 ℃, is incubated 2-3 hour, and crystallization temperature is 900-1100 ℃, is incubated 2-3 hour;
(5) base substrate after micritization is handled cuts, grinds, polishes and be crystallized glass article of the present invention.
Utilize liquid slag from power plant to prepare devitrified glass and can directly adopt the fused solution slag, its processing method comprises the steps: according to this
(1) the fused solution slag that power plant is discharged is incubated in heat-preserving equipment, clarifies, and the viscosity of fused solution slag is 10
3-10
8Pool, SiO in the described liquid slag
2, Al
2O
3, CaO content is 85-90%.
(2) above-mentioned fused solution slag is carried out calendering formation with rolling press;
(3) forming composition is carried out micritization and handle, intensification, cooling rate are 2-4 ℃/min, and nucleation temperature is 900 ℃-1000 ℃, is incubated 2-3 hour, and crystallization temperature is 1200 ℃-1300 ℃, is incubated 2-3 hour;
(4) base substrate after micritization is handled cuts, grinds, polishes and be crystallized glass article of the present invention.
For realizing the requirement of devitrified glass product color, tinting material can be joined in the fused solution slag in the heat-preserving equipment.
Use proof: it can accomplish the end in view.
Embodiment
Embodiment 1:
Starting material are Jilin power plant shrend liquid slag, its SiO
2, Al
2O
3, CaO content is 90%.At first the shrend liquid slag is washed, drying; The material that drying is good is pulverized with ball mill, and its specific surface area is 0.2m
2/ g; Be to carry out moulding under the condition of 100MPa with the material for preparing at pressure; Utilize crystallization furnace that shaped object is carried out micritization and handle, intensification, cooling rate are 4 ℃/min, and nucleation temperature is 990 ℃, is incubated 2 hours, and crystallization temperature is 1100 ℃, is incubated 2 hours; Base substrate after micritization is handled is devitrified glass of the present invention.
Embodiment 2:
Starting material are Jilin power plant shrend liquid slag, its SiO
2, Al
2O
3, CaO content is 90%.At first the shrend liquid slag is washed, drying; The material that drying is good is pulverized with ball mill, and its specific surface area is 0.2m
2/ g; Be to carry out moulding under the condition of 75MPa with the material for preparing at pressure; Utilize crystallization furnace that shaped object is carried out micritization and handle, intensification, cooling rate are 4 ℃/min, and nucleation temperature is 990 ℃, is incubated 2 hours, and crystallization temperature is 1000 ℃, is incubated 2 hours; Base substrate after micritization is handled is devitrified glass of the present invention.
Embodiment 3
Starting material are Anshan power plant fused solution slag, its SiO
2, Al
2O
3, CaO content is 85%.At first the fused solution slag of discharging is incubated in heat-preserving equipment, clarifies.The viscosity of fused solution slag is 10
3-10
4Pool.Carry out calendering formation with rolling press; Forming composition is carried out micritization handle, intensification, cooling rate are 4 ℃/min, and nucleation temperature is 956 ℃, is incubated 2 hours, and crystallization temperature is 1280 ℃, is incubated 2 hours; Base substrate after micritization handled cuts, grind, polish and be crystallized glass article.
Embodiment 4
Starting material are Anshan power plant fused solution slag, its SiO
2, Al
2O
3, CaO content is 85%.At first the fused solution slag of discharging is incubated in heat-preserving equipment, clarifies.The viscosity of fused solution slag is 10
5-10
8Pool.Carry out calendering formation with rolling press; Forming composition is carried out micritization handle, intensification, cooling rate are 4 ℃/min, and nucleation temperature is 956 ℃, is incubated 2 hours, and crystallization temperature is 1200 ℃, is incubated 2 hours; Base substrate after micritization handled cuts, grind, polish and be crystallized glass article.
Because the used liquid slag from power plant of the present invention is vitreous state and exists, have good active, can directly make devitrified glass, not only improved the liquid slag from power plant addition content, save required furnace equipment and the energy consumption of molten glass liquid, reduce cost of investment, do not add any additives in this processing method, the slag rate of utilization is 100%, for its comprehensive utilization provides new approach, when producing economic benefit, social benefit is fairly obvious, has reduced the pollution of liquid slag to environment.Utilize the devitrified glass of liquid slag from power plant preparation to have good microcrystal, principal crystalline phase is a lime feldspar, and devitrified glass has good performance, and its folding strength reaches 35-80MPa, can be used for production liquid slag microcrystalline glass decorative plate fully.
Claims (3)
1, a kind of processing method of utilizing liquid slag from power plant to prepare devitrified glass is characterized in that, this method comprises the steps: according to this
(1) at first power plant's shrend liquid slag is washed, drying, SiO in the described liquid slag
2, Al
2O
3, CaO content is 85-90%;
(2) above-mentioned drying is good slag charge is pulverized, and its specific surface area is 0.1-0.35m
2/ g;
(3) be to carry out moulding under the condition of 50-100MPa with fine powder material at pressure;
(4) forming composition is carried out micritization and handle, intensification, cooling rate are 2-4 ℃/min, and nucleation temperature is 900 ℃-990 ℃, is incubated 2-3 hour, and crystallization temperature is 900 ℃-1100 ℃, is incubated 2-3 hour;
(5) base substrate after the micritization processing is cut, grinds, polishes, be crystallized glass article.
2, a kind of processing method of utilizing liquid slag from power plant to prepare devitrified glass is characterized in that, this method comprises the steps: according to this
(1) the fused solution slag that power plant is discharged is incubated in heat-preserving equipment, clarifies, and the viscosity of fused solution slag is 10
3-10
8Pool, SiO in the described liquid slag
2, Al
2O
3, CaO content is 85-90%;
(2) above-mentioned fused solution slag is carried out calendering formation with rolling press;
(3) forming composition is carried out micritization and handle, intensification, cooling rate are 2-4 ℃/min, and nucleation temperature is 900 ℃-1000 ℃, is incubated 2-3 hour, and crystallization temperature is 1200 ℃-1300 ℃, is incubated 2-3 hour;
(4) base substrate after the micritization processing is cut, grinds, polishes, be crystallized glass article.
3, adopt processing method as claimed in claim 2, it is characterized in that, can in step (1), add tinting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011441852A CN1168683C (en) | 2001-12-14 | 2001-12-14 | Technological process for preparing glass ceramics by using liquid slag from power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011441852A CN1168683C (en) | 2001-12-14 | 2001-12-14 | Technological process for preparing glass ceramics by using liquid slag from power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1351972A CN1351972A (en) | 2002-06-05 |
| CN1168683C true CN1168683C (en) | 2004-09-29 |
Family
ID=4677369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011441852A Expired - Fee Related CN1168683C (en) | 2001-12-14 | 2001-12-14 | Technological process for preparing glass ceramics by using liquid slag from power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1168683C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101314521B (en) * | 2008-06-04 | 2011-05-11 | 长安大学 | Method for producing sintered crystallizing glass with slag tapping boiler of heat-engine plant |
| CN101851063B (en) * | 2010-05-21 | 2012-05-02 | 郑州大学 | Technology for preparing microcrystal glass by utilizing blast furnace water granulated slag and coal ash |
| CN103073186B (en) * | 2013-01-28 | 2015-05-20 | 吴克诚 | Preparation method for producing calendered crystallite cast stone plate with iron tailings |
| CN109320089B (en) * | 2018-11-07 | 2021-12-03 | 西南科技大学 | Functional microcrystalline glass using asbestos tailings as raw material |
| CN111517624A (en) * | 2020-05-20 | 2020-08-11 | 武汉科技大学 | Microcrystalline glass prepared from power plant slag and preparation method thereof |
| CN116177851A (en) * | 2022-10-31 | 2023-05-30 | 苏州大学 | Light calendaring microcrystalline plate and preparation process thereof |
-
2001
- 2001-12-14 CN CNB011441852A patent/CN1168683C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1351972A (en) | 2002-06-05 |
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