CN104529385A - Method for preparing porous heat preserving and flame retarding material from lead-zinc ore smelting slag - Google Patents
Method for preparing porous heat preserving and flame retarding material from lead-zinc ore smelting slag Download PDFInfo
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- CN104529385A CN104529385A CN201410825334.2A CN201410825334A CN104529385A CN 104529385 A CN104529385 A CN 104529385A CN 201410825334 A CN201410825334 A CN 201410825334A CN 104529385 A CN104529385 A CN 104529385A
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Abstract
The invention belongs to the field of research into inorganic materials and building materials and particularly relates to a method for preparing a porous heat preserving and flame retarding material from lead-zinc ore smelting slag. The method comprises the following steps: (1) breaking Na-Ca-Si based ordinary glass into pieces, ball-milling in a steel ball barrel for 2 hours, sieving and grading to obtain glass powder; (2) ball-milling lead-zinc ore smelting slag into powder, removing metals from the powder to obtain metal-free power, drying the metal-free power, and grinding to obtain dried powder; and (3) mixing the dried power with the glass powder, adding a foaming agent to obtain a powder mixture, cold-pressing and moulding with a mould, sintering in a muffle furnace, and cooling naturally to obtain the porous heat preserving and flame retarding material. The low-cost industrial lead-zinc ore smelting slag is used as the raw material for preparing the porous heat preserving and flame retarding material, the volume weight of the prepared porous heat preserving and flame retarding material is reduced greatly, and the prepared porous heat preserving and flame retarding material has huge economic value and environmental protection significance.
Description
Technical field
The invention belongs to inorganic materials and material of construction research field, be specifically related to a kind of preparation method of the porous thermal insulating fire retardant material based on Pb-Zn deposits metallurgical slag.
Background technology
Heat preserving and insulating material (thermal insulation material) refers to the material that can stop that hot-fluid transmits, and extensive application in a lot of fields can improve the utilization ratio of the energy, save energy, thus promotes the discharge of decreasing pollution thing.This exists at present both at home and abroad extensively for reply and society such as day by day serious energy dilemma, environmental pollution etc., economic problems, the Sustainable development realizing economic society is significant.For building material field, along with the place of the densely populated place such as Highrise buildings and megastore, the heat preserving and supplying in winter and the central cooling problem in summer are unavoidable realistic problems, and heat preserving and insulating material plays conclusive effect in this two problems of solution.
Current lagging material for building is broadly divided into inorganic heat preserving and heat insulation material, organic heat-insulating lagging material and organo-mineral complexing heat preserving and insulating material.Wherein, organic heat-insulating lagging material mostly is resinous material, although it is little that this kind of material has weight compared with inorganic heat preserving and heat insulation material, the advantage that heat-insulating capability is good, but the fire disaster case of recent domestic proves that the fire retardancy of this kind of material is very poor, very easily burn, combustion processes discharges a lot of heat, and with being fuming, the phenomenons such as drippage, cause big area fire, and this material can discharge a large amount of flue dust and poisonous gas in combustion, cause asphyxiating atmosphere, huge threat is caused safely to human life, therefore this kind of material is very limited in the application, the adding of existing various fire retardant effect is reduced to the harm of this kind of material and not obvious.Therefore, the good inorganic heat preserving and heat insulation material of fire retardancy is subject to the favor of people, but the weight of this kind of material is too large, limits the use of this kind of material in heavy construction to a great extent.
Porous material has low density, high porosity, bigger serface, selective through the special character such as effect and the concern enjoying people to gas, becomes in Materials science and develops a class material comparatively rapidly.If the advantages such as thermal insulation good for inorganic heat preserving and heat insulation material, ventilation property and security can be combined with the low density of porous material, the feature of low weight, produce the heat-insulating fireproof material of excellent property, will there is huge economic worth and environment protection significance.
Based on the problem in above-mentioned analysis, the present invention proposes a kind of preparation method of the porous thermal insulating fire retardant material based on Pb-Zn deposits metallurgical slag.
Summary of the invention
The object of the invention is to solve easy firing, the flame propagation speed of existing organic heat-insulating heat-isolating flame retardant material, with the problem of being fuming, dripping, propose a kind of preparation method of the porous thermal insulating fire retardant material based on Pb-Zn deposits metallurgical slag.
The preparation method of a kind of porous thermal insulating fire retardant material based on Pb-Zn deposits metallurgical slag that the present invention proposes comprises 1) simple glass (Na-Ca-Si system) is broken into pieces, in steel ball barrel, ball milling is crossed screen sizing and is obtained glass powder after 2 hours; 2) Pb-Zn deposits metallurgical slag is carried out ball milling, obtain ball milling ground-slag, to described ball milling ground-slag metallization removal, obtain metallization removal ground-slag, dried by described metallization removal ground-slag, then grinding obtains drying ground-slag; 3) described oven dry ground-slag and described glass powder blended, add whipping agent, obtain powder mix, after molded by mold cold through retort furnace sintering, obtain heat-insulating fireproof material after naturally cooling.
Further, the particle diameter of described glass powder is 10 ~ 30 microns.
Further, the particle diameter of described ball milling ground-slag is below 200 orders.
Further, described ball milling ground-slag metallization removal refers to that in described ball milling ground-slag, add flotation agent, collecting agent etc. removes remaining metal ion, then uses water ultrasonic cleaning to remove remaining chemical reagent 3 ~ 5 times, obtains described metallization removal ground-slag.
Further, the bake out temperature of described metallization removal ground-slag is 60 degrees Celsius.
Further, the volume of described glass powder is 6% ~ 10% of described oven dry ground-slag.
Further, described whipping agent is carbon ammonium.
Further, the volume of described whipping agent is 1% ~ 3% of described oven dry ground-slag.
Further, described retort furnace sintering method is to the presintering 2 hours under 600 degree celsius temperature of described powder mix, and reburn under being then warming up to 1200 degrees Celsius with the speed of 20 degrees celsius/minute knot 2 hours.
The preparation method of a kind of porous thermal insulating fire retardant material based on Pb-Zn deposits metallurgical slag provided by the invention, cheap commercial lead zinc ore metallurgical slag is selected to be raw material, the unit weight of the heat preserving and insulating material of preparation reduces greatly, facilitate the practical application of lagging material in Highrise buildings etc., there is huge economic worth and environment protection significance.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification sheets, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification sheets, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the workflow diagram of the preparation method of a kind of porous thermal insulating fire retardant material based on Pb-Zn deposits metallurgical slag of the present invention.
Embodiment
Functional overview
Consider easy firing, the flame propagation speed of the existing organic heat-insulating heat-isolating flame retardant material of solution at present, make the present invention with the problem of being fuming, dripping, propose a kind of preparation method of the porous thermal insulating fire retardant material based on Pb-Zn deposits metallurgical slag, to solve associated problem.
Below in conjunction with accompanying drawing, embodiments of the invention are described.It should be noted that, when not conflicting, the technical characteristic in embodiments of the invention and embodiment can be combined with each other, all within protection scope of the present invention.In addition, for convenience of description, employ step number hereinafter, but this should not be construed as limitation of the present invention, in addition, although each step described in following methods shows logical order in flow charts, in some cases, can be different from the step shown or described by order execution herein.
Embodiment of the method
According to embodiments of the invention, propose a kind of preparation method of the porous thermal insulating fire retardant material based on Pb-Zn deposits metallurgical slag.
Fig. 1 shows the schema of the preparation method of a kind of porous thermal insulating fire retardant material based on Pb-Zn deposits metallurgical slag according to the inventive method embodiment, comprises the steps:
Step S102, breaks into pieces simple glass (Na-Ca-Si system), and in steel ball barrel, ball milling is crossed screen sizing and obtained glass powder after 2 hours;
Step S104, carries out ball milling by Pb-Zn deposits metallurgical slag, obtains ball milling ground-slag, to described ball milling ground-slag metallization removal, obtains metallization removal ground-slag, is dried by described metallization removal ground-slag, and then grinding obtains drying ground-slag;
Step S106, described oven dry ground-slag and described glass powder blended, add whipping agent, obtain powder mix, after molded by mold cold through retort furnace sintering, obtain heat-insulating fireproof material after naturally cooling.
The details of above-mentioned process is described below in detail.
(1) step S102
The particle diameter of described glass powder is 10 ~ 30 microns.
(2) step S104
The particle diameter of described ball milling ground-slag is below 200 orders.
Described ball milling ground-slag metallization removal refers to that in described ball milling ground-slag, add flotation agent, collecting agent etc. removes remaining metal ion, then uses water ultrasonic cleaning to remove remaining chemical reagent 3 ~ 5 times, obtains described metallization removal ground-slag.
The bake out temperature of described metallization removal ground-slag is 60 degrees Celsius.
(3) step S106
The volume of described glass powder is 6% ~ 10% of described oven dry ground-slag.
Described whipping agent is carbon ammonium.
The volume of described whipping agent is 1% ~ 3% of described oven dry ground-slag.
Preferably, described retort furnace sintering method is to the presintering 2 hours under 600 degree celsius temperature of described powder mix, and reburn under being then warming up to 1200 degrees Celsius with the speed of 20 degrees celsius/minute knot 2 hours.
Provide specific embodiment below.
Embodiment 1: get simple glass fragment 100 grams, control rotating speed 500rpm to pulverize, the glass powder got after 500 mesh sieves is for subsequent use, the glass powder of 1.2 parts is added the Pb-Zn deposits metallurgical slag 20 parts of metallization removal, evenly blended, add the carbon ammonium of 0.2 part, blended evenly rear with cold stamping die compression moulding (under 15Mpa), retort furnace 600 degrees Celsius of presintering 2 h, sinter 2 hours under 20 degrees celsius/minute are warming up to 1200 degrees Celsius, naturally cooling.
Embodiment 2: get simple glass fragment 100 grams, control rotating speed 500rpm to pulverize, the glass powder got after 500 mesh sieves is for subsequent use, the glass powder of 1.4 parts is added the Pb-Zn deposits metallurgical slag 20 parts of metallization removal, evenly blended, add the carbon ammonium of 0.2 part, blended evenly rear with cold stamping die compression moulding (under 15Mpa), retort furnace 600 degrees Celsius of presintering 2 h, sinter 2 hours under 20 degrees celsius/minute are warming up to 1200 degrees Celsius, naturally cooling.
Embodiment 3: get simple glass fragment 100 grams, control rotating speed 500rpm to pulverize, the glass powder got after 500 mesh sieves is for subsequent use, the glass powder of 1.6 parts is added the Pb-Zn deposits metallurgical slag 20 parts of metallization removal, evenly blended, add the carbon ammonium of 0.2 part, blended evenly rear with cold stamping die compression moulding (under 15Mpa), retort furnace 600 degrees Celsius of presintering 2 h, sinter 2 hours under 20 degrees celsius/minute are warming up to 1200 degrees Celsius, naturally cooling.
Embodiment 4: get simple glass fragment 100 grams, control rotating speed 500rpm to pulverize, the glass powder got after 500 mesh sieves is for subsequent use, the glass powder of 1.8 parts is added the Pb-Zn deposits metallurgical slag 20 parts of metallization removal, evenly blended, add the carbon ammonium of 0.2 part, blended evenly rear with cold stamping die compression moulding (under 15Mpa), retort furnace 600 degrees Celsius of presintering 2 h, sinter 2 hours under 20 degrees celsius/minute are warming up to 1200 degrees Celsius, naturally cooling.
Embodiment 5: get simple glass fragment 100 grams, control rotating speed 500rpm to pulverize, the glass powder got after 500 mesh sieves is for subsequent use, the glass powder of 2 parts is added the Pb-Zn deposits metallurgical slag 20 parts of metallization removal, evenly blended, add the carbon ammonium of 0.2 part, blended evenly rear with cold stamping die compression moulding (under 15Mpa), retort furnace 600 degrees Celsius of presintering 2 h, sinter 2 hours under 20 degrees celsius/minute are warming up to 1200 degrees Celsius, naturally cooling.
Embodiment 6: get simple glass fragment 100 grams, control rotating speed 500rpm to pulverize, the glass powder got after 500 mesh sieves is for subsequent use, the glass powder of 1.2 parts is added the Pb-Zn deposits metallurgical slag 20 parts of metallization removal, evenly blended, add the carbon ammonium of 0.4 part, blended evenly rear with cold stamping die compression moulding (under 15Mpa), retort furnace 600 degrees Celsius of presintering 2 h, sinter 2 hours under 20 degrees celsius/minute are warming up to 1200 degrees Celsius, naturally cooling.
Embodiment 7: get simple glass fragment 100 grams, control rotating speed 500rpm to pulverize, the glass powder got after 500 mesh sieves is for subsequent use, the glass powder of 1.2 parts is added the Pb-Zn deposits metallurgical slag 20 parts of metallization removal, evenly blended, add the carbon ammonium of 0.6 part, blended evenly rear with cold stamping die compression moulding (under 15Mpa), retort furnace 600 degrees Celsius of presintering 2 h, sinter 2 hours under 20 degrees celsius/minute are warming up to 1200 degrees Celsius, naturally cooling.
The preparation method of a kind of porous thermal insulating fire retardant material based on Pb-Zn deposits metallurgical slag provided by the invention; cheap commercial lead zinc ore metallurgical slag is selected to be raw material; the unit weight of the heat preserving and insulating material of preparation reduces greatly; porosity is about 30%; there are good heat-insulating property and flame retardant properties; can be used as the wall thermal insulating of Highrise buildings, packing material, can mass-producing processing and production be carried out, there is huge economic worth and environment protection significance.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1., based on a preparation method for the porous thermal insulating fire retardant material of Pb-Zn deposits metallurgical slag, it is characterized in that, comprise 1) simple glass (Na-Ca-Si system) is broken into pieces, in steel ball barrel, ball milling is crossed screen sizing and is obtained glass powder after 2 hours; 2) Pb-Zn deposits metallurgical slag is carried out ball milling, obtain ball milling ground-slag, to described ball milling ground-slag metallization removal, obtain metallization removal ground-slag, dried by described metallization removal ground-slag, then grinding obtains drying ground-slag; 3) described oven dry ground-slag and described glass powder blended, add whipping agent, obtain powder mix, after molded by mold cold through retort furnace sintering, obtain heat-insulating fireproof material after naturally cooling.
2. the preparation method of the porous thermal insulating fire retardant material based on Pb-Zn deposits metallurgical slag according to claim 1, the particle diameter of described glass powder is 10 ~ 30 microns.
3. the preparation method of the porous thermal insulating fire retardant material based on Pb-Zn deposits metallurgical slag according to claim 1, the particle diameter of described ball milling ground-slag is below 200 orders.
4. the preparation method of the porous thermal insulating fire retardant material based on Pb-Zn deposits metallurgical slag according to claim 1, described ball milling ground-slag metallization removal refers to that in described ball milling ground-slag, add flotation agent, collecting agent etc. removes remaining metal ion, then use water ultrasonic cleaning to remove remaining chemical reagent 3 ~ 5 times, obtain described metallization removal ground-slag.
5. the preparation method of the porous thermal insulating fire retardant material based on Pb-Zn deposits metallurgical slag according to claim 1, the bake out temperature of described metallization removal ground-slag is 60 degrees Celsius.
6. the preparation method of the porous thermal insulating fire retardant material based on Pb-Zn deposits metallurgical slag according to claim 1, the volume of described glass powder is 6% ~ 10% of described oven dry ground-slag.
7. the preparation method of the porous thermal insulating fire retardant material based on Pb-Zn deposits metallurgical slag according to claim 1, described whipping agent is carbon ammonium.
8. method according to claim 1, the volume of described whipping agent is 1% ~ 3% of described oven dry ground-slag.
9. the preparation method of the porous thermal insulating fire retardant material based on Pb-Zn deposits metallurgical slag according to claim 1, described retort furnace sintering method is to the presintering 2 hours under 600 degree celsius temperature of described powder mix, and reburn under being then warming up to 1200 degrees Celsius with the speed of 20 degrees celsius/minute knot 2 hours.
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| CN201410825334.2A CN104529385A (en) | 2014-12-27 | 2014-12-27 | Method for preparing porous heat preserving and flame retarding material from lead-zinc ore smelting slag |
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| CN201410825334.2A CN104529385A (en) | 2014-12-27 | 2014-12-27 | Method for preparing porous heat preserving and flame retarding material from lead-zinc ore smelting slag |
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|---|---|---|---|---|
| CN103253961A (en) * | 2013-06-05 | 2013-08-21 | 江苏华东尾矿治理工程有限公司 | Foamed ceramic material and preparation method thereof |
| CN103739274A (en) * | 2013-12-31 | 2014-04-23 | 咸阳陶瓷研究设计院 | Method for producing ceramic insulation board by tailings of lead zinc ore |
| CN104005528A (en) * | 2014-05-20 | 2014-08-27 | 陕西科技大学 | Compound type light heat-preservation decorative ceramic external wall tile and manufacturing method thereof |
| CN104193392A (en) * | 2014-03-19 | 2014-12-10 | 广西科学院 | Method for preparing high-strength light building material by using manganese ore slag |
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2014
- 2014-12-27 CN CN201410825334.2A patent/CN104529385A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253961A (en) * | 2013-06-05 | 2013-08-21 | 江苏华东尾矿治理工程有限公司 | Foamed ceramic material and preparation method thereof |
| CN103739274A (en) * | 2013-12-31 | 2014-04-23 | 咸阳陶瓷研究设计院 | Method for producing ceramic insulation board by tailings of lead zinc ore |
| CN104193392A (en) * | 2014-03-19 | 2014-12-10 | 广西科学院 | Method for preparing high-strength light building material by using manganese ore slag |
| CN104005528A (en) * | 2014-05-20 | 2014-08-27 | 陕西科技大学 | Compound type light heat-preservation decorative ceramic external wall tile and manufacturing method thereof |
Non-Patent Citations (2)
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| 周炳炎等: "《固体废物特性分析和属性鉴别案例精选》", 31 December 2012 * |
| 张洪等: "《水泥立窑热耗诊断的理论技术和实践》", 30 November 2005 * |
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Application publication date: 20150422 |