CN106946578A - A kind of limekiln permanent robust type insulating brick - Google Patents
A kind of limekiln permanent robust type insulating brick Download PDFInfo
- Publication number
- CN106946578A CN106946578A CN201710176445.9A CN201710176445A CN106946578A CN 106946578 A CN106946578 A CN 106946578A CN 201710176445 A CN201710176445 A CN 201710176445A CN 106946578 A CN106946578 A CN 106946578A
- Authority
- CN
- China
- Prior art keywords
- parts
- haydite
- particle diameter
- limekiln
- clay
- 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.)
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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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
- F27D1/1621—Making linings by using shaped elements, e.g. bricks
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
Abstract
The present invention relates to a kind of limekiln permanent robust type insulating brick, mainly it is made up of the following component in terms of mass fraction：20 30 parts of flint clay, 20 30 parts of haydite, 5 10 parts of clay, 10 15 parts of floating bead, 20 30 parts of portland cement；It is 1 that particle diameter, which is less than the ratio between the flint clay mass fraction of 1mm and particle diameter between 3 5mm, in the flint clay:1；Particle diameter is less than 1mm and particle diameter between 1 3mm in the haydite and particle diameter in the ratio between 3 8mm haydite mass fraction is 1:2:3.The present invention has higher refractoriness, intensity and heat-insulating property simultaneously, can be substituted for clay brick plus heat-insulation layer after the working lining high-alumina brick of limekiln, once builds permanent layer and heat-insulation layer by laying bricks or stones, and technique is simple, permanent robust.
Description
Technical field
The present invention relates to technical field of refractory materials, more particularly to a kind of limekiln permanent robust type insulating brick.
Background technology
Limekiln, vertical shaft, continuous charging, for calcined limestone, makes lime stone resolve into life under the high temperature conditions
Lime CaO and carbon dioxide CO2Kiln, its liner is generally divided into four layers, from it is inner to include successively outside working lining, permanent layer,
Thermal insulation layer and hull plate, due in the prior art without the brick class product of fire resisting and heat-insulating property can be met simultaneously, because
The needs substep of building by laying bricks or stones of this permanent layer and thermal insulation layer is carried out, and is generally done additional heat-insulation layer after permanent layer using clay brick, is built work by laying bricks or stones
Skill is relative complex.
The content of the invention
In order to solve the above-mentioned technical problem fire resistance and the lime of heat-insulating property and good endurance are had concurrently there is provided a kind of
Kiln brick class product, the present invention provides following technical scheme：
A kind of limekiln permanent robust type insulating brick, is made up of the following component in terms of mass fraction：20-30 parts of flint clay,
20-30 parts of haydite, 5-10 parts of clay, 10-15 parts of floating bead, 20-30 parts of aluminate cement.Wherein, flint clay is a variety of silicon containing aluminium
The mixture of hydrochlorate, has volume stability, intensity big and the characteristic such as water absorption rate is small, is suitable for production senior after high-temperature calcination
Refractory material；In cellular inside haydite, there is the characteristics of density is small, thermal conductivity is low, intensity is high, in refractories industry, pottery
Grain is mainly used in making the aggregate of fireclay insulating refractory；Clay has good plasticity, associativity and refractoriness, in the present invention
As bonding agent；Floating bead wall is thin hollow, very light in weight, about 0.1 millimeter of particle diameter, surface-closed and it is smooth, thermal conductivity is small, refractoriness
>=1610 DEG C, be excellent heat insulating refractory material, and on the one hand the floating bead is used for the mobility, another that material is adjusted with clay compatibility
On the one hand be used for strengthen the hardness and wearability of insulating brick, in addition, the hollow sphere structure of floating bead be filled in it is many inside haydite
After pore structure, the fusion of dual thermal-insulating system can greatly improve the performance of heat-insulation and heat-preservation；Aluminate cement condensation setting rate
It hurry up, 1d intensity can shorten time and the cost of fragment of brick sizing up to more than the 80% of maximum intensity, but aluminate cement
Long-term strength has in the trend of reduction, the present invention carries out strengthening action by floating bead, so as to ensure the permanent robust of insulating brick.
Further, particle diameter is less than the flint clay quality of 1mm flint clay and particle diameter between 3-5mm in the flint clay
The ratio between number is 1:1, the flint clay of different-grain diameter with the use of one be consider the reduction of production cost, two be to consider that material is overall
The reasonability of density.
Further, particle diameter is less than 1mm haydite and particle diameter haydite between 1-3 mm in the haydite and particle diameter exists
The ratio between 3-8mm haydite mass fraction is 1:2:3, carry out being combined with beneficial to good heat-insulated in guarantee using the haydite of different-grain diameter
Mitigate the density of refractory brick on the basis of performance.
Further, the haydite is ultra-low-density haydite.
Further, the clay is kaolinite race clay, and binding ability is strong, drying property is good, is unlikely to deform or ftractures.
Further, the ratio between mass fraction of barium aluminate cement and barium aluminate zirconium cement is 4 in the aluminate cement:1.
The features such as barium aluminate cement has fast hard, high intensity, high refractoriness, barium aluminate cement uses cooperatively energy with barium aluminate zirconium cement
Enough promote the activation of cement hydration process, the higher hyrate of barium content can be generated, in heating, it is ensured that aluminic acid salt solution
Mud has higher intensity and relatively low softening performance.
Further, also including 3-5 parts of magnesite clinker, by magnesium hydroxide through high-temperature calcination into a small amount of addition can be notable
Improve the hydration-resisting ability of insulating brick.
The beneficial effects of the present invention are：Pass through the mutual cooperation of the flint clay, haydite of different-grain diameter so that insulating brick is not
Only density is low and excellent thermal insulation performance；By the cooperation of haydite and floating bead ensure that insulating brick intensity, so as to ensure every
The permanent robust of hot brick；Pass through effective combination of a variety of refractory materials so that the fire resistance of insulating brick is splendid, refractory temperature
Reach more than 1750 DEG C.
Embodiment
Embodiment 1,
A kind of limekiln permanent robust type insulating brick, is made up of the following component in terms of mass fraction：Particle diameter is less than 1mm Jiao
12.5 parts of the flint clay of 12.5 parts of jewel, particle diameter between 3-5mm, particle diameter are less than 1mm 5 parts of haydite, particle diameter between 1-3 mm
10 parts of haydite, particle diameter 3-8mm 15 parts of haydite, 7.5 parts of kaolinite race clay, 12.5 parts of floating bead, 20 parts of barium aluminate cement,
5 parts of barium aluminate zirconium cement, 4 parts of magnesite clinker.
Embodiment 2,
A kind of limekiln permanent robust type insulating brick, is made up of the following component in terms of mass fraction：Particle diameter is less than 1mm Jiao
12.5 parts of the flint clay of 12.5 parts of jewel, particle diameter between 3-5mm, particle diameter are less than 1mm 5 parts of haydite, particle diameter between 1-3 mm
10 parts of haydite, particle diameter 3-8mm 15 parts of haydite, 7.5 parts of kaolinite race clay, 12.5 parts of floating bead, 20 parts of barium aluminate cement,
5 parts of barium aluminate zirconium cement.
Embodiment 3,
A kind of limekiln permanent robust type insulating brick, is made up of the following component in terms of mass fraction：Particle diameter is less than 1mm Jiao
10 parts of the flint clay of 10 parts of jewel, particle diameter between 3-5mm, particle diameter are less than 1mm 4 parts of haydite, the pottery of particle diameter between 1-3 mm
8 parts of grain, particle diameter are in 3-8mm 12 parts of haydite, 5 parts of kaolinite race clay, 10 parts of floating bead, 16 parts of barium aluminate cement, barium aluminate zirconium
4 parts of cement, 3 parts of magnesite clinker.The haydite is ultra-low-density haydite.
Embodiment 4,
A kind of limekiln permanent robust type insulating brick, is made up of the following component in terms of mass fraction：Particle diameter is less than 1mm Jiao
15 parts of the flint clay of 15 parts of jewel, particle diameter between 3-5mm, particle diameter are less than 1mm 5 parts of haydite, the pottery of particle diameter between 1-3 mm
10 parts of grain, particle diameter are in 3-8mm 15 parts of haydite, 10 parts of kaolinite race clay, 15 parts of floating bead, 20 parts of barium aluminate cement, barium aluminate
5 parts of zirconium cement, 5 parts of magnesite clinker.
Embodiment 5,
A kind of limekiln permanent robust type insulating brick, is made up of the following component in terms of mass fraction：Particle diameter is between 3-5mm
25 parts of flint clay, 30 parts of the haydite of particle diameter between 1-3 mm, 7.5 parts of kaolinite race clay, 12.5 parts of floating bead, barium aluminate water
25 parts of mud, 4 parts of magnesite clinker.
Comparative example 1,
A kind of refractory brick, is made up of the following component in terms of mass fraction：35 parts of flint clay of the particle diameter between 3-5mm, particle diameter
In 3-8mm 25 parts of haydite, 12 parts of clay, 35 parts of barium aluminate cement.
Comparative example 2,
A kind of refractory brick, is made up of the following component in terms of mass fraction：25 parts of electro-corundum powder, 20 parts of diaspore, aluminum oxide
15 parts of micro mist, 5 parts of magnesia powder, 7.5 parts of titanium dioxide zirconium powder, 10 parts of sintered clay powder, 5 parts of andalusite powder, boronation titanium additives 4
Part.
By the material in above-described embodiment 1-5 and comparative example 1,2, it is press-formed with 100-300MPa pressure, and
Natural cooling after being dried 15-25 hours at 300-400 DEG C in dry kiln, measures its physical and chemical index respectively.
The physical and chemical index of comparative analysis embodiment 1 and embodiment 2 understands that the addition of appropriate magnesite clinker can improve heat-insulated
The fire resisting of brick, heat-proof quality；Comparative analysis embodiment 1, embodiment 3, embodiment 4 understand, flint clay and haydite, clay, floating bead,
Aluminate cement, the mass ratio of magnesia have large effect to cold crushing strength, thermal conductivity factor；Comparative analysis embodiment 1
Understand that the particle diameter distribution of flint clay and haydite has significant impact for the performance of insulating brick with embodiment 5.In summary,
Embodiment 1 is highly preferred embodiment of the present invention, and it, which compares existing refractory brick formula, has higher thermal shock resistance, higher
Refractory temperature, smaller thermal conductivity factor.
Using above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention'.This invention it is technical
Scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (7)
1. a kind of limekiln permanent robust type insulating brick, it is characterised in that：It is made up of the following component in terms of mass fraction：It is burnt
20-30 parts of jewel, 20-30 parts of haydite, 5-10 parts of clay, 10-15 parts of floating bead, 20-30 parts of aluminate cement.
2. a kind of limekiln as claimed in claim 1 permanent robust type insulating brick, it is characterised in that：Grain in the flint clay
It is 1 that footpath, which is less than the ratio between the flint clay mass fraction of 1mm flint clay and particle diameter between 3-5mm,:1.
3. a kind of limekiln as claimed in claim 1 permanent robust type insulating brick, it is characterised in that：Particle diameter in the haydite
Haydite less than 1mm and particle diameter haydite between 1-3 mm and particle diameter are 1 in the ratio between 3-8mm haydite mass fraction:2:3.
4. a kind of limekiln as claimed in claim 1 permanent robust type insulating brick, it is characterised in that：The haydite is ultralight
Density haydite.
5. a kind of limekiln as claimed in claim 1 permanent robust type insulating brick, it is characterised in that：The clay is kaolinite
Stone race clay.
6. a kind of limekiln as claimed in claim 1 permanent robust type insulating brick, it is characterised in that：The aluminate cement
The ratio between mass fraction of middle barium aluminate cement and barium aluminate zirconium cement is 4:1.
7. a kind of limekiln as claimed in claim 1 permanent robust type insulating brick, it is characterised in that：Also include magnesite clinker
3-5 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710176445.9A CN106946578B (en) | 2017-03-23 | 2017-03-23 | Permanent stable heat insulation brick for lime kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710176445.9A CN106946578B (en) | 2017-03-23 | 2017-03-23 | Permanent stable heat insulation brick for lime kiln |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106946578A true CN106946578A (en) | 2017-07-14 |
| CN106946578B CN106946578B (en) | 2020-05-15 |
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ID=59473166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710176445.9A Expired - Fee Related CN106946578B (en) | 2017-03-23 | 2017-03-23 | Permanent stable heat insulation brick for lime kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106946578B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114804823A (en) * | 2022-05-20 | 2022-07-29 | 漯河鑫世通冶金设备有限公司 | Heat-insulating refractory material for air supply device of iron-making blast furnace |
| CN116063090A (en) * | 2023-02-09 | 2023-05-05 | 鞍山市和丰耐火材料有限公司 | Ladle working lining carbon-free corundum spinel precast block and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040157724A1 (en) * | 2003-02-07 | 2004-08-12 | Doza Douglas K. | Crack-resistant insulating dry refractory |
| CN102040385A (en) * | 2009-10-24 | 2011-05-04 | 阮克胜 | Composite alkali-resistant refractory brick of pulverized fuel ash |
| CN102230741A (en) * | 2011-06-06 | 2011-11-02 | 浙江大学 | Heat-insulating integral compound brick with lutaceous structure and preparation method |
| CN102230742A (en) * | 2011-06-06 | 2011-11-02 | 傅晓云 | Structure heat-insulation integrated composite brick and preparation method thereof |
-
2017
- 2017-03-23 CN CN201710176445.9A patent/CN106946578B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040157724A1 (en) * | 2003-02-07 | 2004-08-12 | Doza Douglas K. | Crack-resistant insulating dry refractory |
| CN102040385A (en) * | 2009-10-24 | 2011-05-04 | 阮克胜 | Composite alkali-resistant refractory brick of pulverized fuel ash |
| CN102230741A (en) * | 2011-06-06 | 2011-11-02 | 浙江大学 | Heat-insulating integral compound brick with lutaceous structure and preparation method |
| CN102230742A (en) * | 2011-06-06 | 2011-11-02 | 傅晓云 | Structure heat-insulation integrated composite brick and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114804823A (en) * | 2022-05-20 | 2022-07-29 | 漯河鑫世通冶金设备有限公司 | Heat-insulating refractory material for air supply device of iron-making blast furnace |
| CN116063090A (en) * | 2023-02-09 | 2023-05-05 | 鞍山市和丰耐火材料有限公司 | Ladle working lining carbon-free corundum spinel precast block and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN106946578B (en) | 2020-05-15 |
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Granted publication date: 20200515 Termination date: 20210323 |