CN105271779A - Nickel slag foamed glass and preparation method thereof - Google Patents
Nickel slag foamed glass and preparation method thereof Download PDFInfo
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Abstract
The invention discloses nickel slag foamed glass and a preparation method thereof. The foamed glass is mainly prepared from, by weight, 20-50 parts of nickel slag, 35-55 parts of waste glass, 3-7 parts of foaming agents, 1-5 parts of foam stabilizer and 1-5 parts of fluxing agent. Compared with the prior art, the obtained foamed glass has high compression resistance strength, and the compression resistance requirement of a product can be met; meanwhile, the density is low, and the application range is wide; besides, the foamed glass has a low heat conduction coefficient and water absorption, and the overall performance of the product is excellent.
Description
Technical field
The present invention relates to a kind of method utilizing nickel slag to prepare multicellular glass, belong to multicellular glass preparing technical field.
Background technology
Multicellular glass is that one includes countless opening or micro-bubble of remaining silent, and void content reaches high-quality heat insulating and the sound absorbent material of more than 90%.It has that thermal conductivity is low, intensity is high, density is little, water-intake rate is low, fire prevention, sound absorption, chemical stability is good, frost resistance is good, be easy to processing, asepsis environment-protecting, life-span are grown, the ornamental feature such as by force, not only can be used as the heat-insulating material of Highrise buildings, pipe-line equipment, underground installation, can also be widely used in the fields such as oil, electric power, chemical industry, refrigeration, boats and ships, light industry, bridge, building, greening and national defence, be a kind of energy-saving material with broad prospect of application.A kind of method of preparing foamed glass form titan-containing blast furnace slag is disclosed in patent CN101306919A, patent CN101759346A discloses a kind of method utilizing waste silicon carbon material to prepare multicellular glass, and patent CN103951261A discloses a kind of with golden copper tailing foam glass material that is main raw material and preparation method thereof.
Nickel slag is producing the solid waste given off in non-ferrous metal nickel process, wherein containing SiO
2, MgO, FeO, Al
2o
3, CaO etc.At present, China produces nickel fibers slag more than 200 ten thousand tons per year, is outdoor storing up mostly, not only increases enterprise's maintenance cost to its process, more mainly destroys local environment and ecological resources; To its comprehensive utilization, to make it to turn waste into wealth be the requirement of Sustainable development.The utilization of nickel slag is mainly in cement concrete and materials for wall.Patent " a kind of nickel dreg concrete " (201410250898.8), " a kind of abrasion-proof concrete mixing nickel slag " (201410837489.8), a kind of nickel slag brick and preparation method thereof (201310230070.1) etc.; These methods all can recycle nickel slag, but added value of product is low.Therefore, be necessary to develop and utilize nickel slag in a large number and the high product innovation of added value of product.
Patent CN104891815A discloses a kind of method utilizing high-temperature liquid state metallurgical cinder to prepare multicellular glass, the high-temperature liquid state metallurgical cinder of discharging with metallurgical smelting furnace is for direct material, although it makes use of slag and waste heat thereof, and product has higher ultimate compression strength, but its volume density is comparatively large, limit its application.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides one and utilizes nickel slag to prepare multicellular glass and preparation method thereof.
Technical scheme: for achieving the above object, the invention provides a kind of multicellular glass, its primarily of following weight ratio raw material made by:
20 ~ 50 parts of nickel slags, 35 ~ 55 parts of cullet, 3 ~ 7 parts of whipping agents, 1 ~ 5 portion of suds-stabilizing agent and 1 ~ 5 part of fusing assistant.
As preferably, described multicellular glass primarily of following weight ratio raw material made by:
50 parts of nickel slags, 45 parts of cullet, 3 parts of whipping agents, 1 portion of suds-stabilizing agent and 1 part of fusing assistant.
Preferred as another kind, described multicellular glass primarily of following weight ratio raw material made by:
20 parts of nickel slags, 55 parts of cullet, 7 parts of whipping agents, 5 portions of suds-stabilizing agents and 5 parts of fusing assistants.
Preferred as another kind, described nickel slag for smelt formed in nickel process with SiO
2, CaO, FeO, MgO be the solid slag of main component; Described cullet is silicate glass, LED glass; Described whipping agent is the one in Wingdale, carbon black, sodium carbonate, vitriol and water glass; Described suds-stabilizing agent is the one in sodium phosphate, ferric oxide, boric acid and tertiary sodium phosphate; Described fusing assistant is the one in Sodium Silicofluoride, borax and sodium sulfate.
Preferred as another kind, the density of described multicellular glass is 140 ~ 360kg/m
3, ultimate compression strength is 0.50 ~ 2.8MPa, and water-intake rate is less than 0.5%, and thermal conductivity is 0.05 ~ 0.12w/k.m.
Present invention also offers the preparation method of described multicellular glass, comprise the following steps:
(1) by after cullet clean dry, be crushed to below 10mm, nickel slag is crushed to below 5mm, for subsequent use;
(2) take dry nickel slag, cullet, whipping agent, suds-stabilizing agent and fusing assistant by formula, wet-milling 0.5 ~ 1h, obtains mixture powder, crosses 100 mesh sieves, after filtration, dry;
(3) by the powder that step (2) is obtained, put into mould, compression molding, obtain base substrate, dry;
(4) obtained base substrate is put into High Temperature Furnaces Heating Apparatus, process with certain intensification and cooling process, to obtain final product.
As preferably, in described step (1), cullet cleaning, is the dust on cullet surface, earth, greasy dirt, organic debris are all processed totally;
Preferred as another kind, in described step (2), drying means is: put into oven drying, temperature is 70 DEG C ~ 90 DEG C, and dried powder moisture is 3 ~ 8%;
Preferred as another kind, in described step (3), compression-moulding methods is: adopt semi-dry pressing, forming pressure 2 ~ 6MPa; Described drying means is: dry 5h in 80 DEG C of baking ovens;
Preferred as another kind, in described step (4), certain intensification and cooling process are: with the speed of 5 DEG C/min by room temperature to 500 DEG C, insulation 25 ~ 35min, rise to 850 DEG C ~ 910 DEG C with the heat-up rate of 10 DEG C/min again, insulation 70 ~ 120min, then be warmed up to 950 DEG C with 10 DEG C/min, sintering 60min, then, be cooled to 600 DEG C with the speed of 15 DEG C/min, after insulation 30min, naturally cool to room temperature.
Beneficial effect: relative to prior art, the raw materials used source of preparation method of the present invention is industrial solid castoff, and gained multicellular glass has higher ultimate compression strength, can meet the resistance to compression demand of product, and its density is low simultaneously, applied range; In addition, lower thermal conductivity and water-intake rate is also had, Total Product excellent performance.Be conducive to fully utilizing solid waste, protection of the environment, has good economic benefit and environmental benefit.
Embodiment
Below in conjunction with embodiment, the present invention is further described.
Embodiment 1
Formula: 50 parts of nickel slags, 40 parts of cullet, 7 parts of sodium carbonate, 1.5 parts of Sodium Silicofluorides and 1.5 parts of boric acid
Preparation method:
(1) by after cullet clean dry, be crushed to below 10mm, nickel slag is crushed to below 5mm, for subsequent use;
(2) get nickel slag by formula, cullet, sodium carbonate, Sodium Silicofluoride and boric acid, with ball mill wet-milling 0.7h, cross 100 mesh sieves, put into baking oven and carry out drying, temperature is 80 DEG C;
(3) after admixtion mortar grinder 10min step (2) obtained, put into mould, adopt semi-dry pressing, with the pressure forming of 4MPa, obtain base substrate, dry 5h in 80 DEG C of baking ovens;
(4) above-mentioned molding blank is put into High Temperature Furnaces Heating Apparatus foaming to burn till, with the speed of 5 DEG C/min by room temperature to 500 DEG C, insulation 30min, then rise to 880 DEG C with the heat-up rate of 10 DEG C/min, thermal insulation foaming 90min, 950 DEG C are warmed up to again with 10 DEG C/min, sintering 60min, then, is cooled to 600 DEG C by sample with the speed of 15 DEG C/min, be incubated and naturally cool to room temperature after 30 minutes, to obtain final product.
Embodiment 2
Formula: 50 parts of nickel slags, 42 parts of cullet, 5 parts of Wingdales, 1.5 parts of boraxs and 1.5 parts of sodium phosphates
Preparation method:
(1) by after cullet clean dry, be crushed to below 10mm, nickel slag is crushed to below 5mm, for subsequent use;
(2) get nickel slag by formula, cullet, Wingdale, borax and sodium phosphate, with ball mill wet-milling 0.6h, cross 100 mesh sieves, put into baking oven and carry out drying, temperature is 75 DEG C;
(3) after admixtion mortar grinder 10min step (2) obtained, put into mould, adopt semi-dry pressing, with the pressure forming of 3MPa, obtain base substrate, dry 5h in 80 DEG C of baking ovens;
(4) above-mentioned molding blank is put into High Temperature Furnaces Heating Apparatus foaming to burn till, with the speed of 5 DEG C/min by room temperature to 500 DEG C, insulation 28min, then rise to 860 DEG C with the heat-up rate of 10 DEG C/min, thermal insulation foaming 80min, 950 DEG C are warmed up to again with 10 DEG C/min, sintering 60min, then, is cooled to 600 DEG C by sample with the speed of 15 DEG C/min, be incubated and naturally cool to room temperature after 30 minutes, to obtain final product.
Embodiment 3
Formula: 49 parts of nickel slags, 45 parts of cullet, 3 parts of carbon blacks, 1.0 parts of sodium sulfate and 2.0 parts of ferric oxide
Preparation method:
(1) by after cullet clean dry, be crushed to below 10mm, nickel slag is crushed to below 5mm, for subsequent use;
(2) get nickel slag by formula, cullet, carbon black, sodium sulfate and ferric oxide, with ball mill wet-milling 0.9h, cross 100 mesh sieves, put into baking oven and carry out drying, temperature is 85 DEG C;
(3) after admixtion mortar grinder 10min step (2) obtained, put into mould, adopt semi-dry pressing, with the pressure forming of 5MPa, obtain base substrate, dry 5h in 80 DEG C of baking ovens;
(4) above-mentioned molding blank is put into High Temperature Furnaces Heating Apparatus foaming to burn till, with the speed of 5 DEG C/min by room temperature to 500 DEG C, insulation 32min, then rise to 900 DEG C with the heat-up rate of 10 DEG C/min, thermal insulation foaming 110min, 950 DEG C are warmed up to again with 10 DEG C/min, sintering 60min, then, is cooled to 600 DEG C by sample with the speed of 15 DEG C/min, be incubated and naturally cool to room temperature after 30 minutes, to obtain final product.
Embodiment 4
Formula: 47 parts of nickel slags, 45 parts of cullet, 5 parts of sodium sulfate, 2.0 parts of Sodium Silicofluorides and 1.0 parts of phosphoric acid
Preparation method:
(1) by after cullet clean dry, be crushed to below 10mm, nickel slag is crushed to below 5mm, for subsequent use;
(2) get nickel slag by formula, cullet, sodium sulfate, Sodium Silicofluoride and boric acid, with ball mill wet-milling 0.7h, cross 100 mesh sieves, put into baking oven and carry out drying, temperature is 80 DEG C;
(3) after admixtion mortar grinder 10min step (2) obtained, put into mould, adopt semi-dry pressing, with the pressure forming of 2-6MPa, obtain base substrate, dry 5h in 80 DEG C of baking ovens;
(4) above-mentioned molding blank is put into High Temperature Furnaces Heating Apparatus foaming to burn till, with the speed of 5 DEG C/min by room temperature to 500 DEG C, insulation 30min, then rise to 890 DEG C with the heat-up rate of 10 DEG C/min, thermal insulation foaming 100min, 950 DEG C are warmed up to again with 10 DEG C/min, sintering 60min, then, is cooled to 600 DEG C by sample with the speed of 15 DEG C/min, be incubated and naturally cool to room temperature after 30 minutes, to obtain final product.
Embodiment 5
Formula: 40 parts of nickel slags, 50 parts of cullet, 7 parts of sodium carbonate, 1.5 parts of Sodium Silicofluorides and 1.5 parts of sodium phosphates
Preparation method:
(1) by after cullet clean dry, be crushed to below 10mm, nickel slag is crushed to below 5mm, for subsequent use;
(2) get nickel slag by formula, cullet, sodium carbonate, Sodium Silicofluoride and boric acid, with ball mill wet-milling 0.8h, cross 100 mesh sieves, put into baking oven and carry out drying, temperature is 70 DEG C ~ 90 DEG C;
(3) after admixtion mortar grinder 10min step (2) obtained, put into mould, adopt semi-dry pressing, with the pressure forming of 4MPa, obtain base substrate, dry 5h in 80 DEG C of baking ovens;
(4) above-mentioned molding blank is put into High Temperature Furnaces Heating Apparatus foaming to burn till, with the speed of 5 DEG C/min by room temperature to 500 DEG C, insulation 30min, then rise to 870 DEG C with the heat-up rate of 10 DEG C/min, thermal insulation foaming 95min, 950 DEG C are warmed up to again with 10 DEG C/min, sintering 60min, then, is cooled to 600 DEG C by sample with the speed of 15 DEG C/min, be incubated and naturally cool to room temperature after 30 minutes, to obtain final product.
Embodiment 6
Formula: 35 parts of nickel slags, 55 parts of cullet, 7 parts of sodium carbonate, 1.5 parts of Sodium Silicofluorides and 1.5 parts of boric acid
Preparation method:
(1) by after cullet clean dry, be crushed to below 10mm, nickel slag is crushed to below 5mm, for subsequent use;
(2) get nickel slag by formula, cullet, sodium carbonate, Sodium Silicofluoride and boric acid, with ball mill wet-milling 0.8h, cross 100 mesh sieves, put into baking oven and carry out drying, temperature is 85 DEG C;
(3) after admixtion mortar grinder 10min step (2) obtained, put into mould, adopt semi-dry pressing, with the pressure forming of 4MPa, obtain base substrate, dry 5h in 80 DEG C of baking ovens;
(4) above-mentioned molding blank is put into High Temperature Furnaces Heating Apparatus foaming to burn till, with the speed of 5 DEG C/min by room temperature to 500 DEG C, insulation 30min, then rise to 870 DEG C with the heat-up rate of 10 DEG C/min, thermal insulation foaming 95min, 950 DEG C are warmed up to again with 10 DEG C/min, sintering 60min, then, is cooled to 600 DEG C by sample with the speed of 15 DEG C/min, be incubated and naturally cool to room temperature after 30 minutes, to obtain final product.
Embodiment 7
Formula: 50 parts of nickel slags, 45 parts of cullet, 3 parts of sodium carbonate, 1 part of Sodium Silicofluoride and 1 part of boric acid
Preparation method:
(1) by after cullet clean dry, be crushed to below 10mm, nickel slag is crushed to below 5mm, for subsequent use;
(2) get nickel slag by formula, cullet, sodium carbonate, Sodium Silicofluoride and boric acid, with ball mill wet-milling 0.5h, cross 100 mesh sieves, put into baking oven and carry out drying, temperature is 80 DEG C;
(3) after admixtion mortar grinder 10min step (2) obtained, put into mould, adopt semi-dry pressing, with the pressure forming of 2MPa, obtain base substrate, dry 5h in 80 DEG C of baking ovens;
(4) above-mentioned molding blank is put into High Temperature Furnaces Heating Apparatus foaming to burn till, with the speed of 5 DEG C/min by room temperature to 500 DEG C, insulation 25min, then rise to 850 DEG C with the heat-up rate of 10 DEG C/min, thermal insulation foaming 120min, 950 DEG C are warmed up to again with 10 DEG C/min, sintering 60min, then, is cooled to 600 DEG C by sample with the speed of 15 DEG C/min, naturally cool to room temperature after insulation 30min, to obtain final product.
Embodiment 8
Formula: 28 parts of nickel slags, 55 parts of cullet, 7 parts of sodium carbonate, 5 parts of Sodium Silicofluorides and 5 parts of boric acid
Preparation method:
(1) by after cullet clean dry, be crushed to below 10mm, nickel slag is crushed to below 5mm, for subsequent use;
(2) get nickel slag by formula, cullet, sodium carbonate, Sodium Silicofluoride and boric acid, with ball mill wet-milling 1h, cross 100 mesh sieves, put into baking oven and carry out drying, temperature is 80 DEG C;
(3) after admixtion mortar grinder 10min step (2) obtained, put into mould, adopt semi-dry pressing, with the pressure forming of 6MPa, obtain base substrate, dry 5h in 80 DEG C of baking ovens;
(4) above-mentioned molding blank is put into resistance furnace foaming to burn till, with the speed of 5 DEG C/min by room temperature to 500 DEG C, insulation 35min, then rise to 910 DEG C with the heat-up rate of 10 DEG C/min, thermal insulation foaming 70min, 950 DEG C are warmed up to again with 10 DEG C/min, sintering 60min, then, is cooled to 600 DEG C by sample with the speed of 15 DEG C/min, naturally cool to room temperature after insulation 30min, to obtain final product.
Experimental example preparation method's gained of the present invention properties of foam glass is investigated
According to the ordinary skill in the art, the density of multicellular glass, ultimate compression strength, thermal conductivity and water-intake rate are measured, the results are shown in following table 1.
Table 1 properties of foam glass of the present invention investigates result
Can be obtained by upper table 1 result, gained multicellular glass of the present invention has higher ultimate compression strength, can meet the resistance to compression demand of product, and its density is low simultaneously, applied range; In addition, lower thermal conductivity and water-intake rate is also had, Total Product excellent performance.
The present invention is not limited to above embodiment; the illustrative embodiments that embodiment 1 ~ 8 is only used to principle of the present invention is described and adopts; but for the ordinary skill in the art; do not departing under real situation of the present invention; can make various distortion and improvement, these modification and modification are also considered as protection scope of the present invention.
Claims (10)
1. a nickel slag multicellular glass, is characterized in that, its primarily of following weight ratio raw material made by:
20 ~ 50 parts of nickel slags, 35 ~ 55 parts of cullet, 3 ~ 7 parts of whipping agents, 1 ~ 5 portion of suds-stabilizing agent and 1 ~ 5 part of fusing assistant.
2. nickel slag multicellular glass according to claim 1, is characterized in that, its primarily of following weight ratio raw material made by:
50 parts of nickel slags, 45 parts of cullet, 3 parts of whipping agents, 1 portion of suds-stabilizing agent and 1 part of fusing assistant.
3. nickel slag multicellular glass according to claim 1, is characterized in that, its primarily of following weight ratio raw material made by:
20 parts of nickel slags, 55 parts of cullet, 7 parts of whipping agents, 5 portions of suds-stabilizing agents and 5 parts of fusing assistants.
4. nickel slag multicellular glass according to claim 1, is characterized in that, described nickel slag for smelt formed in nickel process with SiO
2, CaO, FeO, MgO be the solid slag of main component; Described cullet is silicate glass, LED glass; Described whipping agent is the one in Wingdale, carbon black, sodium carbonate, vitriol and water glass; Described suds-stabilizing agent is the one in sodium phosphate, ferric oxide, boric acid and tertiary sodium phosphate; Described fusing assistant is the one in Sodium Silicofluoride, borax and sodium sulfate.
5. nickel slag multicellular glass according to claim 1, is characterized in that, the density of described multicellular glass is 140 ~ 360kg/m
3, ultimate compression strength is 0.50 ~ 2.8MPa, and water-intake rate is less than 0.5%, and thermal conductivity is 0.05 ~ 0.12w/k.m.
6. the preparation method of nickel slag multicellular glass described in any one of claim 1-5, is characterized in that, comprise the following steps:
(1) by after cullet clean dry, be crushed to below 10mm, nickel slag is crushed to below 5mm, for subsequent use;
(2) take dry nickel slag, cullet, whipping agent, suds-stabilizing agent and fusing assistant by formula, wet-milling 0.5 ~ 1h, obtains mixture powder, crosses 100 mesh sieves, after filtration, dry;
(3) by the powder that step (2) is obtained, put into mould, compression molding, obtain base substrate, dry;
(4) obtained base substrate is put into High Temperature Furnaces Heating Apparatus, process with certain intensification and cooling process, to obtain final product.
7. the preparation method of nickel slag multicellular glass according to claim 6, is characterized in that, in described step (1), cullet cleaning, is the dust on cullet surface, earth, greasy dirt, organic debris are all processed totally.
8. the preparation method of nickel slag multicellular glass according to claim 6, is characterized in that, in described step (2), drying means is: put into oven drying, temperature is 70 DEG C ~ 90 DEG C, and dried powder moisture is 3 ~ 8%.
9. the preparation method of nickel slag multicellular glass according to claim 6, is characterized in that, in described step (3), compression-moulding methods is: adopt semi-dry pressing, forming pressure 2 ~ 6MPa; Described drying means is: dry 5h in 80 DEG C of baking ovens.
10. the preparation method of nickel slag multicellular glass according to claim 6, it is characterized in that, in described step (4), certain intensification and cooling process are: with the speed of 5 DEG C/min by room temperature to 500 DEG C, insulation 25 ~ 35min, then rise to 850 DEG C ~ 910 DEG C with the heat-up rate of 10 DEG C/min, insulation 70 ~ 120min, 950 DEG C are warmed up to again, sintering 60min, then with 10 DEG C/min, be cooled to 600 DEG C with the speed of 15 DEG C/min, after insulation 30min, naturally cool to room temperature.
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|---|---|---|---|
| CN201510781545.5A CN105271779B (en) | 2015-11-16 | 2015-11-16 | A kind of nickel slag foam glass and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0484643A1 (en) * | 1990-11-05 | 1992-05-13 | Dennert Poraver GmbH | Use of certain waste glass for the production of foam glass articles |
| CN102381842A (en) * | 2010-08-31 | 2012-03-21 | 张露露 | Pulverized fuel ash foam glass and preparation method thereof |
| CN103708731A (en) * | 2013-12-30 | 2014-04-09 | 中国科学院过程工程研究所 | Nickel-slag porous microcrystalline material and preparation method thereof |
| CN104891815A (en) * | 2015-05-25 | 2015-09-09 | 东北大学 | Method for preparing foam glass by virtue of high-temperature liquid-state metallurgical clinker |
-
2015
- 2015-11-16 CN CN201510781545.5A patent/CN105271779B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0484643A1 (en) * | 1990-11-05 | 1992-05-13 | Dennert Poraver GmbH | Use of certain waste glass for the production of foam glass articles |
| CN102381842A (en) * | 2010-08-31 | 2012-03-21 | 张露露 | Pulverized fuel ash foam glass and preparation method thereof |
| CN103708731A (en) * | 2013-12-30 | 2014-04-09 | 中国科学院过程工程研究所 | Nickel-slag porous microcrystalline material and preparation method thereof |
| CN104891815A (en) * | 2015-05-25 | 2015-09-09 | 东北大学 | Method for preparing foam glass by virtue of high-temperature liquid-state metallurgical clinker |
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