CN1184088A - Refractory heat-isolating hollow ball and its preparation - Google Patents
Refractory heat-isolating hollow ball and its preparation Download PDFInfo
- Publication number
- CN1184088A CN1184088A CN96116116A CN96116116A CN1184088A CN 1184088 A CN1184088 A CN 1184088A CN 96116116 A CN96116116 A CN 96116116A CN 96116116 A CN96116116 A CN 96116116A CN 1184088 A CN1184088 A CN 1184088A
- Authority
- CN
- China
- Prior art keywords
- ball
- powder
- preparation
- make
- hollow ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
Abstract
The improved refractory heat-isolating hollow ball has rough surface, high heat-isolating effect and good bulk property, and this makes its use convenient. It may be widely used in various thermal equipment needing heat isolation and temperature maitenance and in various chemical and other equipment, such as use as catalyst carrier.
Description
The present invention relates to a kind of improved refractory heat-isolating hollow ball and preparation method thereof.
Refractory heat-isolating hollow ball is used widely in the heat insulation field of fire resistant heat preserving as alumina hollow ball, and hollow ball has utilized the big characteristics of enclosed cavity thermal resistance, and good heat-insulation effect receives praises from customers.But existing hollow ball outside surface is smooth, slick entirely, and the accumulation space between ball and the ball is bigger, thereby thermal resistance is less, and heat passage flow process is short, and effect of heat insulation is still not good enough, and smooth, the slick ball of outside surface, its bulk property is poor, also makes troubles for construction, application.
The object of the present invention is to provide a kind of novel refractory heat-isolating hollow ball, this hollow ball good heat-insulation effect, bulk property is good, and easy construction, the present invention also provide the reliable easily preparation method of row of this hollow ball simultaneously.
Purpose of the present invention can realize by following scheme,
Described refractory heat-isolating hollow ball, hollow, be spherical, there is projection on its surface.
For the convenience of moulding with make the surface more rough thick, can make the whole surface of ball all be covered with projection.
The preparation method of hollow ball is simple, at first according to the size and the thickness of balling-up, determines to mould the consumption of grain and fire-resistant fiery powder, then by following step operation.
(1) put in nodulizer and mould a ball, start nodulizer and rotate, general rotating speed is 10～120 rev/mins, makes to mould the grain rotation and throw every now and then.With moulding grain (as use the foamed polystyrene ball) as ball, decomposition vapors away and forms cavity when burning till.Moulding grain meets water, meets heat and all can not expand.
(2) spray binding agent.With organic binder bond and mineral binder bond can, as can generally needing to spray for 3～10 seconds, make ball surface cloth even with 3～10% polyvinyl alcohol solution.
(3) the diffusing powder that adds.Make the common refractory matter of common heat insulation ball,, make the high temperature insulating ball and then need to use the high-temperature flame-proof material as fireclay, as aluminium-silica fireproof material, aluminum oxide refractory matter etc., for the molding bonded of powder, powder needed 120 mesh sieves at least, thin more good more, use as crossing 320 mesh sieves.Rotate certain hour after adding powder, be generally 5 seconds～1 minute, form base thickness.
Spray adding additives when (4) adding powder is again adjusted the shaper rotating speed in 10～180 rev/mins rotating speed, observe the sprinkling situation of adjusting binding agent and the interpolation situation of refractory powder, makes the work in-process ball up to making the ball surface form projection.
(5) with after work in-process oven dry, burning till, mould grain and decompose to vapor away and stay cavity, make refractory heat-isolating hollow ball after the cooling.
The size of hollow ball is changeable, decides as required, between general φ 2～φ 16mm.
The invention will be further described below in conjunction with drawings and Examples.
The structural representation of Fig. 1, refractory heat-isolating hollow ball.
The sectional view of Fig. 2, Fig. 1.
Among the figure: 1 hollow ball, 2 rats, 3 enclosed cavities.
As shown in the figure, it is hollow that hollow ball 1 has enclosed cavity 3 to form, and its surface is furnished with projection 2.
There is projection on refractory heat-isolating hollow ball of the present invention surface, and projection is interlaced, makes the accumulation sky between ball and the ball The crack reduces, and has increased thermal resistance, and the conveying flow of heat is prolonged, and has further improved effect of heat insulation, this sky The bulbus cordis rough surface, bulk property is good, gives construction, uses and also brought convenience, the reliable easily row of its preparation method. The method also can be used for the preparation of the similar ball of other industry, as can making this spherical catalyst carrier, by In having increased surface area, can make catalyst give full play to usefulness.
Embodiment 1:
With the foamed polystyrene ball as ball, put into nodulizer, start nodulizer with 80 rev/mins speed rotation, spray adds 5% poly-second and burns 8 seconds of alcoholic solution, makes the even binding agent of ball surface cloth, loose and added the aluminium-silica fireproof powder of 220 mesh sieves, after 2 minutes, spray binding agent simultaneously and add refractory powder, the rotating speed of adjusting shaper is 40 rev/mins, observe the sprinkling situation of adjustment binding agent and the interpolation situation of refractory powder, make the work in-process ball up to making the ball surface form projection 2.With the work in-process ball saggar of packing into, about 300 ℃ the oven dry kiln dry to moisture content less than 1%, go into klining, firing temperature is 1350～1400 ℃, during high temperature, decompose to vapor away as the foamed polystyrene ball of ball and stay enclosed cavity 3 and form hollowly, make refractory heat-isolating hollow ball of the present invention after the cooling.
The tap density of this hollow ball is 0.3～0.8g/cm
3, thermal conductivity is: 0.15,1000 ℃ the time 0.157, refractoriness is 1600～1900 ℃ in the time of 400 ℃.
Embodiment 2:
With the foamed polystyrene ball as ball, put into nodulizer, start nodulizer with 60 rev/mins speed rotation, spray adds 6% poly-second and burns 5 seconds of alcoholic solution, makes the even binding agent of ball surface cloth, loose and added the aluminium-silica fireproof powder of 200 mesh sieves, after 2 minutes, spray binding agent simultaneously and add refractory powder, the rotating speed of adjusting shaper is 60 rev/mins, observe the sprinkling situation of adjustment binding agent and the interpolation situation of refractory powder, make the work in-process ball up to making the ball surface form projection 2.With the work in-process ball saggar of packing into, about 300 ℃ the oven dry kiln dry to moisture content less than 1%, go into klining, firing temperature is 1350～1400 ℃, during high temperature, send out the fishing ball as the polystyrene of ball and decompose to vapor away and stay enclosed cavity 3 and form hollowly, make refractory heat-isolating hollow ball of the present invention after the cooling.
Embodiment 3:
With the foamed polystyrene ball as ball, put into nodulizer, start nodulizer with 50 rev/mins speed rotation, spray adds 5% poly-second and burns 9 seconds of alcoholic solution, makes the even binding agent of ball surface cloth, loose and added the aluminium-silica fireproof powder of 280 mesh sieves, after 2 minutes, spray binding agent simultaneously and add refractory powder, the rotating speed of adjusting shaper is 80 rev/mins, observe the sprinkling situation of adjustment binding agent and the interpolation situation of refractory powder, make the work in-process ball up to making the ball surface form projection 2.With the work in-process ball saggar of packing into, about 300 ℃ the oven dry kiln dry to moisture content less than 1%, go into klining, firing temperature is 1350～1400 ℃, during high temperature, decompose to vapor away as the foamed polystyrene ball of ball and stay enclosed cavity 3 and form hollowly, make refractory heat-isolating hollow ball of the present invention after the cooling.
Embodiment 4:
With the foamed polystyrene ball as ball, put into nodulizer, start nodulizer with 100 rev/mins speed rotation, spray adds 3% poly-second and burns 8 seconds of alcoholic solution, makes the even binding agent of ball surface cloth, loose and added the aluminium-silica fireproof powder of 120 mesh sieves, after 3 minutes, spray binding agent simultaneously and add refractory powder, the rotating speed of adjusting shaper is 50 rev/mins, observe the sprinkling situation of adjustment binding agent and the interpolation situation of refractory powder, make the work in-process ball up to making the ball surface form projection 2.With the work in-process ball saggar of packing into, about 300 ℃ the oven dry kiln dry to moisture content less than 1%, go into klining, firing temperature is 1350～1400 ℃, during high temperature, decompose to vapor away as the foamed polystyrene ball of ball and stay enclosed cavity 3 and form hollowly, make refractory heat-isolating hollow ball of the present invention after the cooling.
Claims (7)
1, a kind of refractory heat-isolating hollow ball is hollow, is spherical, it is characterized in that there is projection on the ball surface.
2,, it is characterized in that the whole surface of ball is covered with projection according to the described hollow ball of claim 1.
3, the preparation method of hollow ball according to claim 1 by moulding grain as ball, at the surface adhesion refractory powder, is dried then, is burnt till and make, and is undertaken by following step successively when it is characterized in that preparing:
(1) in nodulizer, puts into and mould a ball, start nodulizer and rotate, make and mould the grain rotation and throw every now and then;
(2) spray caking agent;
(3) rotate certain hour after adding powder;
Spray adding additives when (4) adding powder is again adjusted the shaper rotating speed in 10～180 rev/mins rotating speed, make the work in-process ball up to making the ball surface form projection;
(5) the work in-process ball is dried, burnt till, make hollow ball of the present invention.
4, preparation method according to claim 3 is characterized in that the used grain of moulding is the foamed polystyrene ball.
5, preparation method according to claim 3 is characterized in that used binding agent is 3～10% polyvinyl alcohol solution.
6, preparation method according to claim 3 is characterized in that adding the time of rotating behind the powder for the first time is 5 seconds～1 minute.
7, preparation method according to claim 3 is characterized in that powder is a powder of crossing 120 mesh sieves at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96116116A CN1053651C (en) | 1996-12-06 | 1996-12-06 | Refractory heat-isolating hollow ball and its preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96116116A CN1053651C (en) | 1996-12-06 | 1996-12-06 | Refractory heat-isolating hollow ball and its preparation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1184088A true CN1184088A (en) | 1998-06-10 |
| CN1053651C CN1053651C (en) | 2000-06-21 |
Family
ID=5123293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96116116A Expired - Fee Related CN1053651C (en) | 1996-12-06 | 1996-12-06 | Refractory heat-isolating hollow ball and its preparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1053651C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108002822A (en) * | 2017-12-16 | 2018-05-08 | 北京市通州京伦特种耐火材料厂 | Hollow silica alumina ball insulating product and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102030553B (en) * | 2010-11-24 | 2013-04-10 | 淄博旭硝子刚玉材料有限公司 | Box type heat preservation annealing manner for fused zircon corundum brick |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6198404A (en) * | 1984-10-19 | 1986-05-16 | Hitachi Ltd | Coordinate conversion system for industrial robot |
| JPS6211578A (en) * | 1985-07-08 | 1987-01-20 | Mitsubishi Electric Corp | Method for coating fluororubber paint on steel or iron alloy |
| DE3724156A1 (en) * | 1987-07-22 | 1989-02-02 | Norddeutsche Affinerie | METHOD FOR PRODUCING METALLIC OR CERAMIC HOLLOW BALLS |
| CN2261548Y (en) * | 1996-12-06 | 1997-09-03 | 淄博工业陶瓷厂 | Hollow balls as refractory and thermal insulation material |
-
1996
- 1996-12-06 CN CN96116116A patent/CN1053651C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108002822A (en) * | 2017-12-16 | 2018-05-08 | 北京市通州京伦特种耐火材料厂 | Hollow silica alumina ball insulating product and preparation method thereof |
| CN108002822B (en) * | 2017-12-16 | 2020-05-19 | 北京市通州京伦特种耐火材料厂 | Silicon-aluminum hollow ball heat insulation product and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1053651C (en) | 2000-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5914294A (en) | Adsorptive monolith including activated carbon and method for making said monlith | |
| CA2145563C (en) | Nonhazardous pumpable refractory insulating composition | |
| US20030205284A1 (en) | Refractory lined ducts and coating for use therewith | |
| US4735925A (en) | Low-temperature sinterable ceramic composition | |
| CN1184088A (en) | Refractory heat-isolating hollow ball and its preparation | |
| US5811171A (en) | Ceramic products | |
| CN112279633B (en) | Three-layer double-density foamed ceramic regeneration material and preparation method thereof | |
| US3367871A (en) | Molded precision-dimensioned high temperature insulation material | |
| CN106278202A (en) | Light fire brick and preparation method thereof | |
| CA1038890A (en) | Siliceous thermal insulation and method of making same | |
| CN109694513B (en) | Environmental protection electric wire for building engineering | |
| CN2261548Y (en) | Hollow balls as refractory and thermal insulation material | |
| CN1066210A (en) | Pearlstone-low-temp ceramics colour glaze composite wall tile | |
| CN106630986A (en) | Andalusite ceramic heat accumulation material for rotary air pre-heater and preparation method of heat accumulation material | |
| CN1704383A (en) | Mg-Al light thermal-insulated fireproof materials and method for preparing same | |
| GB2093008A (en) | Process for the production of granular heat-resistant or refractory materials containing ceramic fibres | |
| JPH0258231B2 (en) | ||
| CN1031217A (en) | Heat-insulating, fire-preventing composite material and uses thereof | |
| CN85104601A (en) | Composite weight property insulation material and manufacture method | |
| JP2587852B2 (en) | Thermal insulation and its manufacturing method | |
| JPS6215510B2 (en) | ||
| CN1222580A (en) | Carbon-free molten steel holding agent and its production | |
| KR900008588B1 (en) | A reflector of heat insulating and method for producing there off | |
| KR950008609B1 (en) | Process for producing lightweight coal floaters | |
| JP2002544111A (en) | Adsorbent monolith containing activated carbon, method for producing this monolith, and method for adsorbing chemicals from fluid streams |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZIBO GONGJU CITY INDUSTRY AND TRADE CO.,LTD. Free format text: FORMER OWNER: ZIBO INDUSTRIAL CERAMIC FACTORY Effective date: 20020701 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20020701 Patentee after: Zibo public poly city industry and Trade Co., Ltd. Patentee before: Zibo Industrial Ceramic Factory |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20000621 Termination date: 20131206 |