CN101152978A - Method hollow of producing tiny bead - Google Patents
Method hollow of producing tiny bead Download PDFInfo
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- CN101152978A CN101152978A CNA2006100219688A CN200610021968A CN101152978A CN 101152978 A CN101152978 A CN 101152978A CN A2006100219688 A CNA2006100219688 A CN A2006100219688A CN 200610021968 A CN200610021968 A CN 200610021968A CN 101152978 A CN101152978 A CN 101152978A
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Abstract
The present invention relates to a preparation method of hollow microsphere widely used in construction, metallurgy, oil, paint, rubber, plastics, and other industries as an additive. The ratio between components is 10 to 50 percent of aluminum mineral, 35 to 80 percent of mineral containing SiO2, 2 to 7 percent of adhesive, 4 to 10 percent of foaming agent and 0.5 to 2 percent of assistant agent. The present invention has following production processes: the mixed powder materials are put in a kiln with trapezoidal temperature difference for calcinations; the materials are put from the high-temperature section and the semi-finished products can be prepared in the molding section; the product can be made after separation of the semi-finished products in a gas-solid separator. The hollow microsphere produced in the present invention is high in ball-forming rate, high in hollow rate, good in liquidity and good in product quality; hollow microsphere of different levels can be prepared according to different needs.
Description
(1) technical field
The present invention for a kind ofly be widely used in building, industries such as metallurgy, oil, coating, rubber, plastics are as the preparation method of hollow microsphere of addition material.
(2) background technology
The application of existing cenosphere more and more widely, and is more and more higher to the specification of quality of cenosphere.Cenosphere generally should reach high balling ratio, high hollow, good fluidity.Waste time and energy by the cenosphere that physical method processing obtains, be difficult to reach big suitability for industrialized production.And the by product that the existing cenosphere that adopts generally all is a thermal power plant floats pearl, is the coal ash after the burning is dropped into the cenosphere of bubbling through the water column (floating pearl) that generates naturally in the water.Thermal power plant produces, and to float the pearl turnout too little, can't satisfy the demands.The problem that existing stove baked for producing method exists be the balling ratio height then hollow rate is low, otherwise be exactly the hollow rate height, then balling ratio is low.
(3) summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of balling ratio height is provided, hollow rate height, the preparation method of hollow microsphere of good fluidity.
Solution of the present invention is: a kind of preparation method of hollow microsphere is characterized in that each proportion of raw materials is:
Aluminium ore 10-50%,
Contain SiO
2Mineral substance 35-80%,
Tackiness agent 2-7%,
Whipping agent 7-10%,
Auxiliary agent 0.5-2%; Wherein tackiness agent is anti-high-temperature adhesives more than 700 ℃, contains SiO2 content 〉=40% of the mineral substance of SiO2;
Its production technique is: the mixed powder input of said ratio is roasting in the stove of the trapezoidal temperature difference, from the high temperature section input, obtains work in-process from profiled section, work in-process are separated obtaining finished product in gas-solid separator; Wherein the high temperature section temperature is controlled at 1200-1600 ℃, and the profiled section temperature is controlled at below 900 ℃.
Mixed powder whipping agent in the high temperature section fusing decomposes generation gas and is blended in the melt, because temperature reduces rapidly, and dissolved matter begins to be frozen into a duricrust, and gas is wrapped in wherein, forms cenosphere after entering profiled section.The adding tackiness agent helps the curing of duricrust in the process of setting.Auxiliary agent of the present invention mainly is to fall flux and toning agent, and its effect is to reduce the molten point of calcining matter, gives work in-process painted.The work in-process that come out at profiled section are gas-solid mixture, obtain the finished product cenosphere after separating by gas-solid separator.
Basis contains SiO in the solution of the present invention
2The difference of mineral substance, can adopt multiple proportioning, when containing SiO
2Mineral substance when being flyash its proportioning be: aluminium ore 10-40%, flyash 50-80%, tackiness agent 2-5%, whipping agent 5-8%, auxiliary agent 0.5-2%.The AL of aluminium ore wherein
2O
3Content 〉=80%, auxiliary agent is for falling soluble additive and tinting material.When containing SiO
2Mineral substance when being the silicon ore deposit, its proportioning is: aluminium ore 30-50%, silicon ore deposit 35-55%, tackiness agent 4-7%, whipping agent 7-10%, auxiliary agent 0.5-1%, wherein aluminium ore AL
2O
3Content 〉=80%, silicon ore deposit SiO
2Content 〉=90%, auxiliary agent is for falling soluble additive and tinting material.When containing SiO
2Mineral substance when being bentonite or kaolin, its proportioning is: aluminium ore 10-30%, bentonite (kaolin) 60-80%, tackiness agent 4-7%, whipping agent 4-5%, auxiliary agent 0.5-2%.
Production technique can add water with mixing powder after levigator drops into roasting in the stove after grinding into liquid suspension in the solution of the present invention.
Advantage of the present invention: the present invention is melted by high temperature section, and makes whipping agent decompose generation gas, and lowering the temperature rapidly to solidify at the profiled section melt generates duricrust, pressure dome is rolled in wherein forms cenosphere.The cenosphere balling ratio height that the present invention produces, the hollow rate height, good fluidity, can be widely used in that industries such as building, metallurgy, oil, coating, rubber, plastics is the addition material use.
(4) embodiment
The present invention can further specify by embodiment.
Embodiment 1:
Each proportioning raw materials of cenosphere preparation method is as follows
Aluminium ore 30% (content AL
2O
3〉=80%),
Flyash 55%,
Tackiness agent 5%,
Whipping agent 8%,
Soluble additive 1% falls,
Colouring aid 1%.
Its production technique is above-mentioned raw materials to be worn into powder mix, obtain pulvis after the oven dry, pulvis is directly added roasting in the stove that is the trapezoidal temperature difference by feeder, from the high temperature section input, obtain work in-process from profiled section, work in-process are separated obtaining the present embodiment product in gas-solid separator.Wherein: the high temperature section temperature is controlled at 1200-1600 ℃, and the profiled section temperature is controlled at below 900 ℃.
Every after testing index of the cenosphere that present embodiment makes such as following table:
| Test item | Unit | Index | Detected result |
| Moisture content | ％ | ≤0.5 | 0.45 |
| Specific volume | cm/g | ≥2.5 | 2.68 |
| Fineness (aperture 0.4mm) | ％ | ≤3.0 | 0.4 |
| Rate of descent | ％ | ≤3.0 | 0.8 |
| Silicon-dioxide | ％ | ≥58 | 61.7 |
| Titanium dioxide two aluminium | ％ | ≥26.0 | 30.4 |
| Density | g/cm 2 | 0.71 |
Embodiment 2
Each proportioning raw materials of cenosphere preparation method is as follows:
Aluminium ore 30% (content AL
2O
3〉=80%),
Silicon ore deposit 60% (content SiO
2〉=90%),
Tackiness agent 5%,
Whipping agent 4%,
Molten auxiliary agent 1% falls.
Its production technique is above-mentioned raw materials to be worn into powder mix, add water after grinding machine is worn into liquid suspension, directly add roasting in the stove that is the trapezoidal temperature difference by feeder, from the high temperature section input, obtain work in-process from profiled section, work in-process are separated obtaining the present embodiment product in gas-solid separator, wherein: the high temperature section temperature is controlled at 1300-1600 ℃, and the profiled section temperature is controlled at below 900 ℃.
Claims (5)
1. preparation method of hollow microsphere is characterized in that each proportion of raw materials is:
Aluminium ore 10-50%,
The mineral substance 35-80% that contains SiO2,
Tackiness agent 2-7%,
Whipping agent 4-10%,
Auxiliary agent 0.5-2%;
Wherein: tackiness agent is anti-high-temperature adhesives more than 700 ℃, contains SiO2 content 〉=40% of the mineral substance of SiO2;
Its production technique is:
A, the mixed powder input of said ratio is roasting in the stove of the trapezoidal temperature difference,, obtains work in-process from profiled section from the high temperature section input;
B, work in-process are separated in gas-solid separator obtain product of the present invention;
Wherein: the high temperature section temperature is controlled at 1200-1600 ℃, and the profiled section temperature is controlled at below 900 ℃.
2. according to the described preparation method of hollow microsphere of claim, it is characterized in that each proportion of raw materials is:
Aluminium ore 10-40%,
Flyash 50-80%,
Tackiness agent 2-5%,
Whipping agent 5-8%,
Auxiliary agent 0.5-2%; The AL of aluminium ore wherein
2O
3Content 〉=80%.
3. according to the described preparation method of hollow microsphere of claim, it is characterized in that each proportion of raw materials is:
Aluminium ore 30-50%,
Silicon ore deposit 35-55%,
Tackiness agent 4-7%,
Whipping agent 7-10%,
Auxiliary agent 0.5-1%;
The AL of aluminium ore wherein
2O
3Content 〉=80%, silicon ore deposit SiO
2Content 〉=90%.
4. according to the described preparation method of hollow microsphere of claim, it is characterized in that containing SiO
2Mineral substance can adopt SiO
2Content is greater than 60% bentonite or kaolin.
5. according to the described preparation method of hollow microsphere of claim, it is characterized in that in the production technique mixed powder being added water after levigator drops into roasting in the stove after grinding into liquid suspension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100219688A CN101152978A (en) | 2006-09-26 | 2006-09-26 | Method hollow of producing tiny bead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100219688A CN101152978A (en) | 2006-09-26 | 2006-09-26 | Method hollow of producing tiny bead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101152978A true CN101152978A (en) | 2008-04-02 |
Family
ID=39254893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100219688A Pending CN101152978A (en) | 2006-09-26 | 2006-09-26 | Method hollow of producing tiny bead |
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| CN (1) | CN101152978A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826840A (en) * | 2012-09-24 | 2012-12-19 | 西南石油大学 | SiO2-Al2O3 hollow ceramic ball and preparation method thereof |
| CN108483930A (en) * | 2018-06-01 | 2018-09-04 | 南京新循环保科技有限公司 | The preparation method of cenosphere |
| CN110050644A (en) * | 2019-05-26 | 2019-07-26 | 山东工艺美术学院 | Conduction type coal ash red mud humus prepares the implantation methods of sand-fixing device turf |
| CN113248943A (en) * | 2021-05-14 | 2021-08-13 | 浙江三时纪新材科技有限公司 | Preparation method of hollow silica powder filler, powder filler obtained by preparation method and application of powder filler |
-
2006
- 2006-09-26 CN CNA2006100219688A patent/CN101152978A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826840A (en) * | 2012-09-24 | 2012-12-19 | 西南石油大学 | SiO2-Al2O3 hollow ceramic ball and preparation method thereof |
| CN102826840B (en) * | 2012-09-24 | 2014-02-26 | 西南石油大学 | SiO2-Al2O3 hollow ceramic ball and preparation method thereof |
| CN108483930A (en) * | 2018-06-01 | 2018-09-04 | 南京新循环保科技有限公司 | The preparation method of cenosphere |
| CN110050644A (en) * | 2019-05-26 | 2019-07-26 | 山东工艺美术学院 | Conduction type coal ash red mud humus prepares the implantation methods of sand-fixing device turf |
| CN113248943A (en) * | 2021-05-14 | 2021-08-13 | 浙江三时纪新材科技有限公司 | Preparation method of hollow silica powder filler, powder filler obtained by preparation method and application of powder filler |
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