CN106927839A - A kind of micropore insulation brick - Google Patents
A kind of micropore insulation brick Download PDFInfo
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- CN106927839A CN106927839A CN201710183863.0A CN201710183863A CN106927839A CN 106927839 A CN106927839 A CN 106927839A CN 201710183863 A CN201710183863 A CN 201710183863A CN 106927839 A CN106927839 A CN 106927839A
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- brick
- insulation brick
- micropore
- silicon dioxide
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
- C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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- 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
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Abstract
The present invention relates to a kind of micropore insulation brick, with modified pearl rock, silicon dioxide gel and micro mist aluminum oxide are raw material, are made according to percentage by weight.The usage amount of silicon dioxide gel is reduced on the premise of insulating brick bond strength is ensured, so as to reduce the reheating linear change rate on reheating of product, the stability of product is improve, and insulation brick of the invention is non-burning brick, preparation process is simple is easily realized, energy consumption is low, pollution is small, environmentally friendly.The high intensity of refractory brick and the lower thermal conductivity of heat-preservation cotton are perfectly combined and are integrated by the present invention, start new era of lightweight flame-proof thermal insulation material, product is provided simultaneously with that thermal conductivity is low, and body is close small, it is lightweight, the characteristics of compressive resistance is high, and cost performance is high, long service life, easy construction, it is small to harm, good heat insulating, widened the energy-saving new route of thermal kiln furnace, the structural improvement for traditional thermal kiln furnace, it is energy-saving there is provided reliable material ensure.
Description
Technical field
The invention belongs to high temperature kiln insulation material technical field, and in particular to a kind of micropore insulation brick.
Background technology
In industrial circle, every kiln body and body of heater higher than under normal temperature environment, especially high temperature kiln, high-temperature smelting pot, in order to
Heat losses are prevented, insulation material is used in body of heater or kiln body.The structure of Industrial Stoves is usually from inside to outside flame retardant coating, insulation
Layer, steel frame construction layer, flame retardant coating are located at the innermost layer of kiln, are directly contacted with high-temperature medium, therefore, fire resisting layer material must have
Standby fire resistance very high；Heat-insulation layer is located at the intermediate layer of kiln, is not contacted with high-temperature medium directly, primarily serves insulation, prevents
The only effect of heat losses, the requirement to heat-insulation layer is usually：Thermal conductivity is small, and density is small, and compressive resistance is high etc., and this is to insulation
The most basic requirement of layer.With production and the development of science and technology, people propose requirement higher to insulation layer material, for example, it is desirable to
Insulation layer material possesses smaller density and thermal conductivity, and heat-insulating property higher, cost performance is high, economical, environmentally friendly, light, be easy to
Operation construction etc..
At present, existing insulation material is generally the resistance to guncotton of fireproof insulation brick or alumina silicate series, and fireproof insulation brick has
Certain bearing strength, but thermal conductivity factor is big, and heat insulation effect is bad, and expensive, and economic pressures are caused to enterprise, and
Existing insulating brick density and weight are relatively large, which adds the load-bearing of steel construction, and because weight and volume is big, give
Construction is made troubles, and efficiency of construction is low, and combination property is not good enough.The resistance to guncotton of alumina silicate series is imitated than the insulation of fireproof insulation brick
It is really good, but resistance to guncotton is completely without bearing strength.Both existing defects equal in actual use, it is impossible to preferably meet and use
It is required that.
The content of the invention
The technical problems to be solved by the invention are for above-mentioned the deficiencies in the prior art, there is provided a kind of micropore is adiabatic
Brick, the lower thermal conductivity of the high-mechanic intensity of fireproof insulation brick and fire resistant heat preserving cotton is perfectly combined and is integrated, and has started lightweight resistance to
New era of fiery insulation material.Insulation brick thermal conductivity of the invention is low, and body is close small, lightweight, and compressive resistance is high, service life
Long, good heat insulating, cost performance is high；It is that one kind is non-burning brick, it is small to human body and environmental hazard；Due to lightweight, fortune is reduced
Defeated expense, the more existing fireproof insulation brick of combination property and heat-preservation cotton are good, widened the energy-saving new route of thermal kiln furnace, be biography
Unite thermal kiln furnace structural improvement, it is energy-saving there is provided reliable material ensure.
The object of the invention to solve the technical problems is realized using following technical scheme.
According to a kind of micropore insulation brick proposed by the present invention, the percentage by weight of its raw material and each raw material is：
Modified pearl rock 60-85%,
Silicon dioxide gel 10-35%,
Micro mist aluminum oxide 1-12%.
The object of the invention to solve the technical problems can also be applied to the following technical measures to achieve further.
A kind of foregoing micropore insulation brick, wherein, each raw material and its percentage by weight are：
Modified pearl rock 75%,
Silicon dioxide gel 20%,
Micro mist aluminum oxide 5%.
Further, the silicon dioxide gel is low alkali high-viscosity nano silicon dioxide gel, its pH=9-10；Institute
Micro mist aluminum oxide is stated for α-Al2O3Ultramicro-powder, its d50=2 μm.
Further, the modified pearl rock is that perlite ore is obtained by modified, and specific method of modifying is：Will
Perlite ore is crushed to particle diameter for 20-30 mesh, then carries out expanding treatment at 1010-1030 DEG C, then with compound acid soak
24h, perlite is separated from Compound-acid, is then dried.
Further, the Compound-acid be nitric acid, phosphoric acid, formic acid, hydrochloric acid, trichloroacetic acid in two or more mix
Close.
Further, the preparation method of the micropore insulation brick is specially：By modified pearl rock, silicon dioxide gel and micro-
Powder aluminum oxide is put into mixer and stirs according to weight proportion feeding, and the raw material that then will be stirred evenly is put into the steel of hydraulic press
It is compressing under the pressure of 7-12MPa in molding jig, the insulation brick being molded is placed into 4-5h naturally, then in 120-150 DEG C
Lower drying, drying time is 24h, that is, obtain finished microporous insulation brick.
Designing points of the invention are：
(1), perlite ore is not in itself flame-proof thermal insulation material, and the present inventor will not possess refractory material spy by modified
Property perlite ore be used as to prepare the raw material of fireproof insulation brick, and achieve effect well, on the one hand remain insulation
The heat insulation effect of brick, on the other hand greatly reduces the density of insulating brick, alleviates the weight of insulating brick, not only greatly reduces
Cost of transportation, reduces Enterprise Transportation expense, and makes construction get up to be more prone to due to light in construction, improves and applies
Work efficiency rate.
(2) chemical composition of perlite ore is：SiO2、Al2O3、Fe2O3、CaO、K2O、Na2O、MgO、H2O, due to containing
Alkali metal oxide, makes the refractoriness of perlite ore not high, and the present inventor reduces the alkali metal in perlite and contains by being modified
Amount, improves the fire resistance of perlite, will not be the raw material of the perlite ore as fireproof insulation brick of flame-proof thermal insulation material, and
And because modified perlite has the advantages that light weight, density are low, thermal conductivity factor is low, chemical stability good, used as insulation brick
Raw material, greatly reduce adiabatic brick product body is close and thermal conductivity, improve its heat-insulating property.
(3) fine silica powder is a kind of high temperature adhesives for comparing popularization, the silicon dioxide gel and two of the present invention
Ultrafine silica powder is compared to bigger specific surface area and more efficient binding ability.During prepared by insulating brick, dioxy
SiClx colloidal sol actually plays a part of bonding agent, and I haven't seen you for ages effectively reduces the reheating linear change rate on reheating of insulating brick for bonding agent consumption, together
When bonding agent consumption ensure insulating brick bond strength higher again.Innovation of the invention is with relatively small weight hundred
The silicon dioxide gel of ratio is divided to realize the less reheating linear change rate on reheating of insulating brick and larger bond strength simultaneously, while reducing
Insulating brick density in itself.
(4) the micro mist aluminum oxide that the present invention is used is α-Al2O3Ultramicro-powder, the d of alumina particle in powder50=2 μm, grain
Footpath is small, is evenly distributed, and improves the lowest total of the melting point of aluminum oxide, so as to improve the heat-insulating property of product.
Micropore insulation brick of the invention is a kind of insulating brick, and existing for the heat-insulation layer of high temperature kiln, rather than flame retardant coating
Refractory brick technical indicator and performance requirement it is different.Micropore insulation brick of the invention incorporate existing insulating brick, heat-preservation cotton,
The advantage of blanket, felt, greatly improved the heat-insulating property of equipment, and energy-conserving and environment-protective comply fully with industrial policy and the society of current country
Meeting demand, accelerate and improves the competitiveness of the image product and its product using unit.
By the industrial checking phase of 5 years, the present invention was widely used to ceramics, cleaning coal-fired gasification system, metal at present
In the projects such as stove, kiln, reaction tower, the pipe network in the fields such as processing, petrochemical industry, generating.
Micropore insulation brick of the invention can completely substitute floating bead brick, high alumina in 1000 DEG C and following field of heat insulating materials and gather
The insulation materials such as light brick, it is advantageous that：
(1) thermal conductivity of high insulating effect floating bead brick be 0.25W/m ﹒ k, micropore insulation brick thermal conductivity better than its 2 times~2.5
Times.For example：400 DEG C of hot face thermal conductivity factors, the floating bead brick of 0.8 density and the thermal conductivity of diatomite brick in 0.3w/m.k or so, and
The thermal conductivity of micropore insulation brick is in 0.07-0.1w/m.k.
(2) bulk density of the small floating bead brick of bulk density is 0.8~0.9g/cm3, it is 0.9g/cm to survey3, micropore insulation brick
Size according to bulk density can be divided into three types：0.3g/cm3、0.35g/cm3、0.45g/cm3, can significantly mitigate guarantor
The weight of warm layer, relative reduction is to body of heater, the Structural strength calls of pipeline.
(3) compressive resistance of high capacity floating bead brick is 1.5~2.0MPa, and micropore insulation brick is 1.32MPa.With reference to respective
Proportion, pile up altitude conversion in actually used central maximum, floating bead brick can pile up 225 meters, and micropore insulation brick is up to 371
Rice.
(4) on the premise of insulation layer thickness is constant fortunately, micropore insulation brick can substantially reduce coldface temperature to heat-insulating property；
Under the premise of coldface temperature is immovable, micropore insulation brick can substantially reduce insulation layer thickness.And micropore insulation brick can be with
Big special-shaped product is compared, building mortar layer can be so reduced, is conducive to improving heat-insulating property.
(5) the small floating bead brick production technology of the scale error and aberration of insulating brick is the rubbed forcing press compacting of dispensing, flat board
Stove is fired and formed, and is a kind of burned brick, belongs to the operation of hand-guided, and its insulating brick appearance and size, product aberration cannot ensure.
And micropore insulation brick production technology of the invention be with production ceramic tile, floor tile hydraulic press suppress, drying is formed, and is unburned
Product, whole process is produced by optical pickocff automatic location.Product size is accurate and absolutely not aberration, and product condition is good, class is high.
(6) transport breakage rate is small due to raw material and the difference of preparation technology, has insulation brick of the invention good tough
Property, heat energy good stability, not cracky in transit, the breakage rate of micropore insulation brick of the present invention is 1%, in the middle of floating bead brick transport
Breakage rate be 2~3%.
(7) construct easily because micropore insulation brick is lighter than floating bead brick by 2/3 so that with micropore insulation brick than applying with floating bead brick
Work efficiency high, and the brill of micropore insulation brick, cut, cut, the operation such as repairing type is all very easy to.
(8) cost performance micropore insulation brick raw materials for production price high is higher, but because being unburned product, overall price is not higher than drift
Pearl brick, and because the present invention is small to environmental hazard, can promote and improve the product shape of enterprise using micropore insulation brick of the invention
As the price competitiveness with its product.
Micropore of the invention is adiabatic to be turned to have compared following advantage with alumina silicate fibre class or rock wool heat-preservation product：
(1) compressive resistance refractory fibre product high does not have bearing strength substantially, it is impossible to for being needed as shop fixtures, carrying etc.
The compressive resistance for having the purposes of certain compressive resistance, micropore insulation brick is compared up to more than 1.32MPa, micropore insulation brick
Range of application it is wider.
(2) long service life aluminum silicate fibre product contains certain organic matter as bonding agent, and one section is used under high temperature
Meeting efflorescence after time, and micropore insulation brick is entirely free of organic matter, service life will grow many times.
(3) the small fibrous material of shrinkage factor contains 5~8% organic matter under high temperature, can cause the contraction of material 3~4%, fall
The phenomenons such as slag, so as to influence to produce the quality of product.Cellucotton, plate, blanket, felt can produce larger compression ratio, and fibre
Problem of aging is larger.And micropore insulation brick is 0.7% in 1000 DEG C of shrinkage factors, compared with fiber-like or rock cotton insulation material,
Shrinkage factor is very small, therefore product quality can be effectively ensured when actual production is used.
(4) environmental protection and the simple fibre of waste treatment have some pessimal stimulations to the skin of people, and micropore insulation brick
Then will not.Micropore insulation brick is non-textile, an ancient egg-shaped, holed wind instrument will not be produced to do harm to human body, environment, without special harmless when such as discarded
Change is processed, and eliminates the garbage disposal expense of enterprise, reduces enterprise's production capacity, is increased economic efficiency.
In sum, a kind of micropore insulation brick of the invention technically has significant progress, and with obvious actively effect
Really, really it is a new and innovative, progressive, practical new design.
Described above is only the general introduction of technical solution of the present invention, in order to better understand technological means of the invention,
And can be practiced according to the content of specification, and in order to allow the above and other objects, features and advantages of the invention can
Become apparent, below especially exemplified by preferred embodiment, describe in detail as follows.
Brief description of the drawings
Nothing
Specific embodiment
Further to illustrate the present invention to reach technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Preferred embodiment, to according to a kind of micropore insulation brick proposed by the present invention, its specific embodiment, structure, feature and its effect,
Describe in detail as after.
The present invention is a kind of micropore insulation brick, be mainly used for ceramics, cleaning coal-fired gasification system, intermetallic composite coating, petrochemical industry,
It is a kind of new insulation layer material, body small with thermal conductivity in the projects such as stove, kiln, reaction tower, the pipe networks in field such as generating
Density is small, and compressive resistance is high, long service life, and the advantages of cost performance is high, product is free of fiber-like, high volatile material, to ring
Border is friendly, and micropore insulation brick of the invention is unburned product, the problems such as in the absence of pollutant emission, saves the rubbish of enterprise
Processing cost, further reduces enterprise's production capacity, increases economic efficiency.
Micropore insulation brick of the invention is made up of following component according to percentage by weight：
Modified pearl rock 60-85%,
Silicon dioxide gel 10-35%,
Micro mist aluminum oxide 1-12%.
It is preferred that the raw material proportioning of micropore insulation brick is：
Modified pearl rock 75%,
Silicon dioxide gel 20%,
Micro mist aluminum oxide 5%.
Further, the silicon dioxide gel is low alkali high-viscosity nano silicon dioxide gel, its pH=9-10；It is micro-
Powder aluminum oxide is α-Al2O3Ultramicro-powder, its alumina powder particle d50=2 μm.
Further, the modified pearl rock is that ordinary pearl rock and ore is obtained by modified, specific method of modifying
For：Ordinary pearl rock and ore is crushed to particle diameter for 20-30 mesh, moment expanding treatment is then carried out at 1010-1030 DEG C, then
With compound acid soak 24h, perlite is separated from Compound-acid, then dried.
Further, the Compound-acid be nitric acid, phosphoric acid, formic acid, hydrochloric acid, trichloroacetic acid in two or more mix
Close.
Micropore insulation brick of the invention is non-burning brick, and preparation method is simple：By modified pearl rock, silicon dioxide gel and micro-
Powder aluminum oxide is put into mixer and stirs according to weight proportion feeding, and the raw material that then will be stirred evenly is put into the steel of hydraulic press
It is compressing under the pressure of 7-12MPa in molding jig, the insulation brick being molded is placed into 4-5h naturally, then in 120-150 DEG C
Lower drying, drying time is 24h, that is, obtain finished microporous insulation brick.Technical process is simple to operation, to preparation condition without spy
It is different to require, easily realize.
Specific embodiment：
Embodiment 1
It is according to percentage by weight：Modified pearl rock 60%, silicon dioxide gel 35%, the ratio of micro mist aluminum oxide 5%
Three kinds of raw materials are taken, is put into mixer and is stirred, the raw material that then will be stirred evenly is put into the steel die of hydraulic press,
It is compressing under the pressure of 10MPa, the insulation brick being molded is placed into 4h naturally, then in being dried at 150 DEG C, drying time is
24h, that is, obtain finished microporous insulation brick, and 1 is shown in Table to its performance test results.
Embodiment 2
It is according to percentage by weight：Modified pearl rock 85%, silicon dioxide gel 10%, the ratio of micro mist aluminum oxide 5%
Three kinds of raw materials are taken, is put into mixer and is stirred, the raw material that then will be stirred evenly is put into the steel die of hydraulic press,
It is compressing under the pressure of 7MPa, the insulation brick being molded is placed into 4h naturally, then in being dried at 130 DEG C, drying time is
24h, that is, obtain finished microporous insulation brick, and 1 is shown in Table to its performance test results.
Embodiment 3
It is according to percentage by weight：Modified pearl rock 80%, silicon dioxide gel 19%, the ratio of micro mist aluminum oxide 1%
Three kinds of raw materials are taken, is put into mixer and is stirred, the raw material that then will be stirred evenly is put into the steel die of hydraulic press,
It is compressing under the pressure of 12MPa, the insulation brick being molded is placed into 5h naturally, then in being dried at 120 DEG C, drying time is
24h, that is, obtain finished microporous insulation brick, and 1 is shown in Table to its performance test results.
Embodiment 4
It is according to percentage by weight：Modified pearl rock 70%, silicon dioxide gel 18%, the ratio of micro mist aluminum oxide 12%
Three kinds of raw materials are taken, is put into mixer and is stirred, the raw material that then will be stirred evenly is put into the steel die of hydraulic press,
It is compressing under the pressure of 8MPa, the insulation brick being molded is placed into 5h naturally, then in being dried at 150 DEG C, drying time is
24h, that is, obtain finished microporous insulation brick, and 1 is shown in Table to its performance test results.
Embodiment 5
It is according to percentage by weight：Modified pearl rock 75%, silicon dioxide gel 20%, the ratio of micro mist aluminum oxide 5%
Three kinds of raw materials are taken, is put into mixer and is stirred, the raw material that then will be stirred evenly is put into the steel die of hydraulic press,
It is compressing under the pressure of 10MPa, the insulation brick being molded is placed into 5h naturally, then in being dried at 140 DEG C, drying time is
24h, that is, obtain finished microporous insulation brick, and 1 is shown in Table to its performance test results.
Embodiment 6
It is according to percentage by weight：Modified pearl rock 75%, silicon dioxide gel 20%, the ratio of micro mist aluminum oxide 5%
Three kinds of raw materials are taken, micropore insulation brick is prepared under different compression ratios according to above-mentioned preparation method, raw material composition is identical, due to pressure
Contracting obtains three kinds of micropore insulation bricks of model than different, is respectively according to density size：0.30g/cm3、0.35g/cm3、
0.45g/cm3, the performance indications of the micropore insulation brick of these three models are as shown in table 2 with the performance comparison of existing insulation material.
The performance test results of each embodiment micropore insulation brick of table 1.
The performance indications contrast of the micropore insulation brick of table 2. and existing insulation material
By contrast：Or existing insulation material is compressive resistance high, thermal conductivity and density are big；It is thermal conductivity
Small with density, compressive resistance is low, it is impossible to be provided simultaneously with the performance that density is small, thermal conductivity is small, compressive resistance is high.And existing floating bead
The performance data of brick and heat-preservation cotton also show same result.
The present invention has obtained unburned insulation brick, for the guarantor of high temperature kiln by preferred feedstock, formula and preparation technology
Warm layer, is provided simultaneously with that density is small, and thermal conductivity is small, compressive resistance is high and the small advantage of reheat linear change, collection fireproof insulation brick
The lightweight of high-mechanic intensity and resistance to guncotton, body are close less than one, have started new era of lightweight flame-proof thermal insulation material.With it is traditional
Insulating brick is compared, and insulation brick heat insulation effect of the invention improves more than 3 times, and the density of brick reduces more than 60%, traditional
Insulating brick needs sintering in the preparation, not only pollutes environment, and expend mass energy；Insulation brick of the invention is unburned product
Product, energy-conserving and environment-protective can be with energy-conservation more than 80% compared with traditional insulating brick.In transit, due to being according to weight charging, sheet
The insulation brick of invention alleviates the weight of brick due to greatly reducing density, therefore can save a large number of expense in transport,
Entreprise cost is reduced, is further increased economic efficiency.
Table 3 is the chemical composition of micropore insulation brick of the invention：
The chemical composition of the micropore insulation brick of table 3.
| Chemical composition | SiO2 | Al2O3 | Fe2O3 | CaO | MgO | K2O | Na2O | Igloss |
| Weight (%) | 62 | 11 | 1.4 | 4.7 | 3.2 | 2.8 | 2.2 | 12.7 |
The above, is only presently preferred embodiments of the present invention, and any formal limitation is not made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when making a little change or modification using the technology contents of the disclosure above
It is the Equivalent embodiments of equivalent variations, as long as being the content without departing from technical solution of the present invention, according to technical spirit of the invention
Any simple modification, equivalent variations and the modification made to above example, still fall within the range of technical solution of the present invention.
Claims (7)
1. a kind of micropore insulation brick, it is characterised in that be made according to percentage by weight by following raw material：
Modified pearl rock 60-85%,
Silicon dioxide gel 10-35%,
Micro mist aluminum oxide 1-12%.
2. micropore insulation brick as claimed in claim 1, it is characterised in that its raw material and percentage by weight are：
Modified pearl rock 75%,
Silicon dioxide gel 20%,
Micro mist aluminum oxide 5%.
3. micropore insulation brick as claimed in claim 1, it is characterised in that the silicon dioxide gel is low alkali high viscosity nanometer
Grade silicon dioxide colloidal sol, its pH=9-10.
4. micropore insulation brick as claimed in claim 1, it is characterised in that the micro mist aluminum oxide is α-Al2O3Ultramicro-powder, its d50
=2 μm.
5. micropore insulation brick as claimed in claim 1, it is characterised in that the method for modifying of the modified pearl rock is：By pearl
Rock and ore is crushed to particle diameter for 20-30 mesh, then carries out expanding treatment at 1010-1030 DEG C, then with compound acid soak 24h,
Perlite is separated from Compound-acid, is then dried.
6. micropore insulation brick as claimed in claim 5, it is characterised in that the Compound-acid be nitric acid, phosphoric acid, formic acid, hydrochloric acid,
Two or more mixing in trichloroacetic acid.
7. micropore insulation brick as claimed in claim 1, it is characterised in that prepare in accordance with the following methods：
By modified pearl rock, silicon dioxide gel and micro mist aluminum oxide according to weight proportion feeding, stirring is equal in being put into mixer
Even, the raw material that then will be stirred evenly is put into the steel die of hydraulic press, compressing under the pressure of 7-12MPa, by what is be molded
Insulation brick places 4-5h naturally, and then in being dried at 120-150 DEG C, drying time is 24h, that is, obtain finished microporous insulation brick.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109053168A (en) * | 2018-10-10 | 2018-12-21 | 中钢集团洛阳耐火材料研究院有限公司 | A kind of superhigh temperature light thermal-insulation coating |
| CN109748597A (en) * | 2019-03-20 | 2019-05-14 | 苏州北美国际高级中学 | A kind of presoma method that mutually gelling prepares mullite porous ceramic |
| CN110803931A (en) * | 2019-12-04 | 2020-02-18 | 焦作鑫昆节能保温材料科技有限公司 | Novel composite baking-free refractory brick and preparation process thereof |
| CN110950585A (en) * | 2019-12-26 | 2020-04-03 | 浙江路兴环保科技有限公司 | Environment-friendly baking-free brick and manufacturing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070293387A1 (en) * | 2006-06-15 | 2007-12-20 | Shin-Etsu Chemical Co., Ltd. | Extrusion or injection molding composition and method for preparing molded part |
| US20090130452A1 (en) * | 2007-11-16 | 2009-05-21 | Serious Materials, Inc. | Low Embodied Energy Wallboards and Methods of Making Same |
| CN101585715A (en) * | 2009-06-24 | 2009-11-25 | 樊金鑫 | Microporous refractory heat-insulating material and manufacturing method thereof |
| US20130022838A1 (en) * | 2007-08-02 | 2013-01-24 | Applied Materials, Inc. | Method of reducing plasma arcing on surfaces of semiconductor processing apparatus components in a plasma processing chamber |
| CN103553687A (en) * | 2013-11-09 | 2014-02-05 | 宁夏天纵泓光余热发电技术有限公司 | Heat-insulating fireproof pouring material |
-
2017
- 2017-03-24 CN CN201710183863.0A patent/CN106927839B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070293387A1 (en) * | 2006-06-15 | 2007-12-20 | Shin-Etsu Chemical Co., Ltd. | Extrusion or injection molding composition and method for preparing molded part |
| US20130022838A1 (en) * | 2007-08-02 | 2013-01-24 | Applied Materials, Inc. | Method of reducing plasma arcing on surfaces of semiconductor processing apparatus components in a plasma processing chamber |
| US20090130452A1 (en) * | 2007-11-16 | 2009-05-21 | Serious Materials, Inc. | Low Embodied Energy Wallboards and Methods of Making Same |
| CN101585715A (en) * | 2009-06-24 | 2009-11-25 | 樊金鑫 | Microporous refractory heat-insulating material and manufacturing method thereof |
| CN103553687A (en) * | 2013-11-09 | 2014-02-05 | 宁夏天纵泓光余热发电技术有限公司 | Heat-insulating fireproof pouring material |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109053168A (en) * | 2018-10-10 | 2018-12-21 | 中钢集团洛阳耐火材料研究院有限公司 | A kind of superhigh temperature light thermal-insulation coating |
| CN109748597A (en) * | 2019-03-20 | 2019-05-14 | 苏州北美国际高级中学 | A kind of presoma method that mutually gelling prepares mullite porous ceramic |
| CN110803931A (en) * | 2019-12-04 | 2020-02-18 | 焦作鑫昆节能保温材料科技有限公司 | Novel composite baking-free refractory brick and preparation process thereof |
| CN110803931B (en) * | 2019-12-04 | 2022-05-27 | 焦作鑫昆节能保温材料科技有限公司 | Composite baking-free refractory brick and preparation process thereof |
| CN110950585A (en) * | 2019-12-26 | 2020-04-03 | 浙江路兴环保科技有限公司 | Environment-friendly baking-free brick and manufacturing method thereof |
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