CN101746984B - Preparation method of vitrified small ball - Google Patents
Preparation method of vitrified small ball Download PDFInfo
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- CN101746984B CN101746984B CN200910155078XA CN200910155078A CN101746984B CN 101746984 B CN101746984 B CN 101746984B CN 200910155078X A CN200910155078X A CN 200910155078XA CN 200910155078 A CN200910155078 A CN 200910155078A CN 101746984 B CN101746984 B CN 101746984B
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- glass bead
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Abstract
The invention relates to a preparation method of a vitrified small ball, which comprises the following processing steps of surface softening, inner softening, crystal water gasifying, expanding without breaking shell, superficial vitrifying cell-closing, superficial cell-closing reinforcing, reinforcing again and obtaining the finished product. The vitrified small ball prepared by the technology has hard surface, high vacuum and no water sucking, thereby having the advantages of high strength, low thermal coefficient, and the like.
Description
[technical field]
The invention relates to a kind of preparation method of heat preserving and insulating material, especially at a kind of preparation method of glass bead.
[background technology]
Glass bead is a kind of environmental protection inorganic light heat-insulating material, except having light weight, insulation, thermal insulation, fp excellent properties, also has and do not burn, and the intensity height, water-intake rate is low, easily and property is good, the advantage of long service life.This product can be used as the aglite of building material industry; Float the part substitute of pearl as the lightweight refractory industry; Substitute as glass microballon in the emulsion explosive industry has very wide application prospect, can be widely used in numerous areas such as industry, agricultural, building materials, chemical industry, smelting, light industry.
The processing method of general existing production glass bead is: the ore in sand form of selected particular particle size; expanded under the electric furnace type of heating; by accurate control to temperature and raw material hang time; product surface is dissolved; the pore sealing; be irregular spherical particle, inner porous air cavity configuration, surperficial vitreous sealing gets final product.But the glass bead heat-insulating property that above-mentioned technology makes is relatively poor, and handles by the one-time surface vitreous, and the glass bead surface is hard inadequately and easy to be damaged, can not reach the building requirements that improves day by day.
Therefore, for avoiding above-mentioned technical problem, the necessary preparation method that a kind of more advanced glass bead is provided is to overcome described defective of the prior art.
[summary of the invention]
For addressing the above problem, the object of the present invention is to provide a kind ofly to have that appearance is hard, the preparation method of the glass bead of the inside vacuum.
For achieving the above object, the technical scheme that the present invention takes is: a kind of preparation method who utilizes vitrification furnace to prepare glass bead, described vitrification furnace has 7 grades of different temperature provinces, it comprises following processing step: (1), inorganic ore particles being put into vitrification furnace in the first step, to carry out the surface softening, and described softening temperature is 880 ℃-930 ℃; (2), in the second stage with inorganic ore particles further heating make its heart softening, the softening temperature of this moment is 950 ℃-1000 ℃; (3), in the third stage, inorganic ore particles further heated and makes the crystal water gasification, described gasification temperature is 990 ℃-1040 ℃; (4), in the fourth stage, the not broken shell under 1030 ℃-1080 ℃ temperature condition of inorganic ore particles is expand into sphere; (5), in level V, the vitreous closed pore is carried out in inorganic ore particles surface under 1040 ℃-1090 ℃ temperature condition and obtain glass bead; (6), the surperficial closed pore with glass bead in the 6th grade further strengthens, described temperature is 1050 ℃-1100 ℃; (7), in the 7th grade, glass bead is strengthened again, the temperature when strengthening again is 1070 ℃-1120 ℃, and finally coming out of the stove obtains the glass bead of finished product.
The present invention further is set to: described inorganic ore is specially the perlite stone flour.
The present invention further is set to: described perlite stone flour was dried processing at 400 ℃ of stoves earlier before putting into vitrification furnace, and the trip ionized water is removed.
The present invention further is set to: described drying time is 20min.
The present invention further is set to: described surperficial closed pore enhanced temperature is 1090 ℃.
The present invention can also be set to: the particle diameter of the described finished product glass bead that makes is 0.5-1.5mm.
Compared with prior art; the present invention has following beneficial effect: the present invention produces glass bead by the vitrification furnace with 7 grades of differing temps zones; the surface can be carried out glass bead after the vitreous carries out surperficial closed pore and strengthens and strengthen; make the glass bead appearance harder; the vacuum tightness height, do not absorb water, thereby make that glass bead has that intensity height, thermal conductivity are low, long service life and the good characteristics of thermal and insulating performance.
[description of drawings]
Fig. 1 is the preparation method's of a glass bead of the present invention process flow sheet.
[embodiment]
Below in conjunction with specific embodiment, the present invention is further specified.
Embodiment 1
See also shown in Figure 1; the present invention is a kind of preparation method who utilizes vitrification furnace to prepare glass bead; described vitrification furnace has 7 grades of different temperature provinces successively, and it comprises following processing step: and the surface is softening → heart is softening → and crystal water gasification → not broken shell expansion → surperficial vitreous closed pore → surperficial closed pore strengthen → strengthens → obtains finished product again.Specifically; (1) inorganic ore particles being put into common stove in the first step of vitrification furnace, to carry out the surface softening; the concrete model of vitrification furnace that adopts is RZ-540-12, and the temperature when softening is roughly 880 ℃-930 ℃, and not broken shell lays the first stone during for expansion.(2) make its heart softening the further heating of inorganic ore particles in the second stage, for the vacuum tightness that improves glass bead lays the first stone, the softening temperature of this moment is 950 ℃-1000 ℃.(3) in the third stage, inorganic ore particles further heated and make the crystal water gasification, described gasification temperature is 990 ℃-1040 ℃, when crystal water is too much, the bulging force of gasification is excessive, broken shell when easily generation is expanded, in case broken shell, glass bead just can not produce partial vacuum, and its strength degradation, water-intake rate increase; Crystal water is very few, and the gasification bulging force is little, and then product capacity is excessive, is difficult for expansion vitrification, and gasifies under temperature of the present invention, and crystal water generally can remove 60%, the most suitable expansion broken shell this moment.(4) in the fourth stage, the not broken shell under 1030 ℃-1080 ℃ temperature condition of inorganic ore particles is expand into sphere, avoid surperficial squarely, pointed, thereby help improving the quality of spherical glass bead.(5) in level V, will under 1040 ℃-1090 ℃ temperature condition, carry out the vitreous closed pore and obtain glass bead, thereby improve the glass bead surface strength, make its boring shape inorganic ore particles surface.In order to make the higher of the glass bead quality of production; make the particle surface after the expansion be round and successive vitreous shell is arranged; envelope is closed and the inner basic hollow structure that is in the space; special feature of the present invention is: (6) will further strengthen the surperficial closed pore of glass bead in the 6th grade; described enhancing temperature is 1100 ℃; make balling ratio reach 80-90%, rate of closed hole reaches 95%.(7) will be again in the 7th grade the surface of glass bead be strengthened again, thus make vacuum in the glass bead, outer hard, do not absorb water, thermal and insulating performance further strengthens, the temperature of this moment is roughly 1090 ℃, finally coming out of the stove obtains the glass bead of finished product.
Embodiment 2
(1) inorganic ore particles being put into common vitrification furnace in the first step, to carry out the surface softening, and the temperature when softening is roughly 880 ℃-930 ℃, and not broken shell lays the first stone when expanding.(2) make its heart softening the further heating of inorganic ore particles in the second stage, for the vacuum tightness that improves glass bead lays the first stone, the softening temperature of this moment is 950 ℃-1000 ℃.(3) in the third stage, inorganic ore particles further heated and make crystal water gasification, described gasification degree is 990 ℃-1040 ℃, because crystal water is too much, the gasification bulging force is excessive, easily produce the expanded of broken shell, in case broken shell, glass bead just can not produce partial vacuum, and its strength degradation, water-intake rate increase; Crystal water is very few, and the gasification bulging force is little, and then product capacity is excessive, is difficult for expansion vitrification, and gasifies under temperature of the present invention, and crystal water generally can remove 60%, and this moment is the most suitable.(4) in the fourth stage, the not broken shell under 1030 ℃-1080 ℃ temperature condition of inorganic ore particles is expand into sphere, avoid surperficial squarely, pointed, thereby help improving the quality of spherical glass bead.(5) in level V, the vitreous closed pore is carried out in inorganic ore particles surface under 1040 ℃-1090 ℃ temperature condition and obtain glass bead, thereby improve the glass bead surface strength, make its boring shape.In order to make the higher of the glass bead quality of production; make the particle surface after the expansion be round and successive vitreous shell is arranged; envelope is closed and the inner basic hollow structure that is in the space; special feature of the present invention is: (6) surperficial closed pore to glass bead in the 6th grade further strengthens; described enhancing temperature is 1060 ℃; make balling ratio reach 80-90%, rate of closed hole reaches 95%.(7) in the 7th grade again the surface to glass bead strengthen again, thereby make vacuum in the glass bead, outer hard, do not absorb water, thermal and insulating performance further strengthens, the temperature of this moment is roughly 1070 ℃, finally coming out of the stove obtains the glass bead of finished product.
Embodiment 3
(1) inorganic ore particles being put into common vitrification furnace in the first step, to carry out the surface softening, and the temperature when softening is roughly 880 ℃-930 ℃, and not broken shell lays the first stone when expanding.(2) make its heart softening the further heating of inorganic ore particles in the second stage, for the vacuum tightness that improves glass bead lays the first stone, the softening temperature of this moment is 950 ℃-1000 ℃.(3) in the third stage, inorganic ore particles further heated and make crystal water gasification, described gasification degree is 990 ℃-1040 ℃, because crystal water is too much, the gasification bulging force is excessive, easily produce the expanded of broken shell, in case broken shell, glass bead just can not produce partial vacuum, and its strength degradation, water-intake rate increase; Crystal water is very few, and the gasification bulging force is little, and then product capacity is excessive, is difficult for expansion vitrification, and gasifies under temperature of the present invention, and crystal water generally can remove 60%, and this moment is the most suitable.(4) in the fourth stage, the not broken shell under 1030 ℃-1080 ℃ temperature condition of inorganic ore particles is expand into sphere, avoid surperficial squarely, pointed, thereby help improving the quality of spherical glass bead.(5) in level V, the vitreous closed pore is carried out in inorganic ore particles surface under 1040 ℃-1090 ℃ temperature condition and obtain glass bead, thereby improve the glass bead surface strength, make its boring shape.In order to make the higher of the glass bead quality of production; make the particle surface after the expansion be round and successive vitreous shell is arranged; envelope is closed and the inner basic hollow structure that is in the space; special feature of the present invention is: (6) surperficial closed pore to glass bead in the 6th grade further strengthens; described enhancing temperature is 1050 ℃; make balling ratio reach 80-90%, rate of closed hole reaches 95%.(7) in the 7th grade again the surface to glass bead strengthen again, thereby make vacuum in the glass bead, outer hard, do not absorb water, thermal and insulating performance further strengthens, the temperature of this moment is roughly 1120 ℃, finally coming out of the stove obtains the glass bead of finished product.
In each above-mentioned embodiment; the inorganic ore particles that adopts is the perlite stone flour, drops between the vitrification furnace and can also carry out following processing to the perlite stone flour earlier: rotating at 400 ℃ of stoves, make its oven dry; this process approximately continues 20 minutes, thereby the trip ionized water is all removed.
The glass bead physical property of making by above-mentioned technology is as follows:
Granularity: 0.3-1.5mm
Unit weight: 100-150kg/m3
Thermal conductivity: 0.032-0.045W/ (mk)
Its floatability: 〉=98%
Surface vitreous rate: 〉=95%
The present invention produces glass bead by the vitrification furnace with 7 grades of differing temps zones; the surface can be carried out glass bead after the vitreous carries out surperficial closed pore and strengthens and strengthen; make the glass bead appearance harder; the vacuum tightness height, do not absorb water, thereby make that glass bead has that intensity height, thermal conductivity are low, long service life and the good characteristics of thermal and insulating performance.
Above embodiment only be preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of being made, is equal to replacement, improvement etc. within spirit of the present invention and principle, all should be included within protection scope of the present invention.
Claims (4)
1. preparation method who utilizes vitrification furnace to prepare glass bead, described vitrification furnace has 7 grades of different temperature provinces, and it comprises following processing step:
(1), the perlite stone flour being put into vitrification furnace in the first step, to carry out the surface softening, described softening temperature is 880 ℃-930 ℃;
(2), in the second stage with the perlite stone flour further heating make its heart softening, the softening temperature of this moment is 950 ℃-1000 ℃;
(3), in the third stage, the perlite stone flour further heated and makes the crystal water gasification, described gasification temperature is 990 ℃-1040 ℃;
(4), in the fourth stage, the not broken shell under 1030 ℃-1080 ℃ temperature condition of perlite stone flour is expand into sphere;
(5), in level V, the vitreous closed pore is carried out in perlite stone flour surface under 1040 ℃-1090 ℃ temperature condition and obtain glass bead;
It is characterized in that: it also comprises
(6), in the 6th grade be further to strengthen under 1050 ℃-1100 ℃ the condition in temperature with the surperficial closed pore of glass bead;
(7), in the 7th grade, glass bead is strengthened again, the temperature when strengthening again is 1070 ℃-1120 ℃, and finally coming out of the stove obtains the glass bead of finished product.
2. the preparation method of a kind of glass bead as claimed in claim 1 is characterized in that: described perlite stone flour was dried processing at 400 ℃ of stoves earlier before putting into vitrification furnace, to remove the trip ionized water.
3. the preparation method of a kind of glass bead as claimed in claim 2, it is characterized in that: described drying time is 20min.
4. as the preparation method of each described a kind of glass bead of claim 1 to 3, it is characterized in that: the particle diameter of the described finished product glass bead that makes is 0.3-1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910155078XA CN101746984B (en) | 2009-12-17 | 2009-12-17 | Preparation method of vitrified small ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910155078XA CN101746984B (en) | 2009-12-17 | 2009-12-17 | Preparation method of vitrified small ball |
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| Publication Number | Publication Date |
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| CN101746984A CN101746984A (en) | 2010-06-23 |
| CN101746984B true CN101746984B (en) | 2011-09-28 |
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| CN200910155078XA Expired - Fee Related CN101746984B (en) | 2009-12-17 | 2009-12-17 | Preparation method of vitrified small ball |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964720B (en) * | 2014-04-15 | 2015-10-28 | 南阳市弘创石油技术开发有限公司 | A kind of preparation method of high-strength low-density closed pore glass bead |
| CN106431440B (en) * | 2016-10-17 | 2019-07-09 | 武汉科技大学 | A kind of micro- closed pore alumina refractory aggregate of light weight and preparation method thereof |
| CN107032647A (en) * | 2017-05-24 | 2017-08-11 | 达州市国鸿建筑节能工程有限公司 | A kind of glass bead and preparation method thereof |
| CN107805084A (en) * | 2017-11-21 | 2018-03-16 | 张家港市华孚实业有限公司 | Perlite expanding method |
| CN115872678A (en) * | 2022-12-01 | 2023-03-31 | 桂林理工大学 | Method for preparing heat-preservation and heat-insulation board by mixing vitrified micro bubbles and cement |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1970484A (en) * | 2006-12-11 | 2007-05-30 | 四川嘉华企业（集团）股份有限公司 | Swelled perlite and its preparation method, its uses as modified microbead in producing high intensity low density oil well cement |
| CN101134651A (en) * | 2006-08-28 | 2008-03-05 | 北京华伟佳科技有限公司 | Process for making dilation vitrified microbead and rotary floating dilation vitrification furnace |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101134651A (en) * | 2006-08-28 | 2008-03-05 | 北京华伟佳科技有限公司 | Process for making dilation vitrified microbead and rotary floating dilation vitrification furnace |
| CN1970484A (en) * | 2006-12-11 | 2007-05-30 | 四川嘉华企业（集团）股份有限公司 | Swelled perlite and its preparation method, its uses as modified microbead in producing high intensity low density oil well cement |
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