CN106396594A - Process for manufacturing oleophobic calcium silicate heat insulation product - Google Patents
Process for manufacturing oleophobic calcium silicate heat insulation product Download PDFInfo
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- CN106396594A CN106396594A CN201610766185.6A CN201610766185A CN106396594A CN 106396594 A CN106396594 A CN 106396594A CN 201610766185 A CN201610766185 A CN 201610766185A CN 106396594 A CN106396594 A CN 106396594A
- Authority
- CN
- China
- Prior art keywords
- calcium silicate
- temperature
- serosity
- water
- silicate product
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Classifications
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/18—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/203—Oil-proof or grease-repellant materials
Abstract
The invention discloses a process for manufacturing an oleophobic calcium silicate heat insulation product, wherein the process comprises the following steps: 1) lime slaking, 2) mixing and batching, 3) hydrothermal synthesis reaction, 4) extrusion forming, 5) drying and dehydration, 6) mechanical surface treatment and 7) acceptance. The process has the advantages of simple technological process and obvious economic benefits; and the process of the oleophobic calcium silicate heat insulation product is simplified, the production cost is reduced, and the processing quality of the oleophobic calcium silicate heat insulation product is improved.
Description
Technical field
The present invention relates to a kind of manufacturing process hating oily heat-insulating calcium silicate product.
Background technology
Calcium silicate insulation is the third generation adiabator after expanded perlite, rock wool and mineral wool.It has close
The low, low thermal conductivity of degree, using temperature high, color is attractive in appearance in vain, easy construction, consumption rate are low, reusable the advantages of, be applied not only to
High temperature kiln or the adiabatic heat-insulation of chemical industry equipment, can be also used for the freezer of ship, on refrigerating transport vehicle, prevent in steel construction simultaneously
Fiery field and building heat preservation field there is also huge space.
The manufacturing process of heat-insulating calcium silicate product of the prior art is relatively complicated, and production cost is higher, in gel
During need stir, not only increase energy consumption, and the quality of the heat-insulating calcium silicate product preparing be relatively low.
Content of the invention
Present invention aim at provide for the deficiency existing for prior art a kind of to hate oily heat-insulating calcium silicate product
The technical scheme of manufacturing process, not only simplify the technique hating oily heat-insulating calcium silicate product, reduces production cost, and improves
Hate the crudy of oily heat-insulating calcium silicate product, remarkable in economical benefits.
In order to solve above-mentioned technical problem, the present invention adopts the following technical scheme that：
A kind of manufacturing process hating oily heat-insulating calcium silicate product is it is characterised in that comprise the steps：
1) lime digestion
A, using the method for washing, zirconium slag is processed, first in undressed zirconium slag, adds 6～9 times of water,
Zirconium slag and aqueous solution are sufficiently mixed stratification after stirring, pick upper solution with Glass rod, measured using pH reagent paper
Its pH value；
B, the upper solution after stratification is toppled over, the precipitate of lower floor is added water continuation stirring, repeats above-mentioned washing
Process, until the pH value of measurement is 6.5～7；
C and then carry out ball-milling treatment to the zirconium slag having washed with ball mill, Ball-milling Time is 15～20min, until wearing into
Powder, after 200 mesh sieves, is finally cleared up with 80～90 DEG C of water, is obtained lime white after filtration；
2) mix
By step 1) in be obtained lime white with through activity process after siliceous raw material press water-solid ratio be 10:1 ratio
Stir with water, bentonite Hybrid Heating, mixing speed is 60～150rpm, heating-up temperature is 120～190 DEG C of insulations 4～8
Hour, then add oleophobic agent and mixed, obtain serosity；
3) hydrothermal synthesis reaction
Serosity after stirring is placed 1～2 hour at normal temperatures and pressures, makes the calcareous raw material in serosity former with siliceous
Material carries out pre-reaction, carries out hydrothermal synthesis reaction loading serosity in autoclave, is not stirred, treats in course of reaction
After the completion of reaction, slurry is taken out；
4) extrusion forming
Reacted slurry is passed through pressure forming machine, control pressure is in 2～3.5Mpa；
5) drying and dehydrating
Product after molding is put into dried at a temperature of 100～125 DEG C of baking oven；
6) mechanical surface treatment
Dried heat-insulating calcium silicate product is fixed on operating board by clamping tool, then with automatic sander pair
The surface of heat-insulating calcium silicate product carries out mechanical grinding process；
7) check and accept
Finally the product after grinding process is carried out an acceptance inspection, vanning.
Process zirconium slag using method for washing, can effectively remove chloride ion therein, mitigate the gelation polymerization of zirconium slag
Phenomenon, can reduce washing times simultaneously, improve the efficiency of washing, reduce the less granule of particle diameter and run off.
Prepared using static method and hate oily heat-insulating calcium silicate product, environment can not only be effectively protected, using resource, and
And can effectively economize on resources, reduce production cost, obtain higher economic benefit, the market not only improving enhancing enterprise is competing
Strive power, the popularization of calcium silicate insulation can be accelerated again.
Preferably, step 2) in heating-up temperature be 140～160 DEG C.
Preferably, step 2) in mixing speed be 80～90rpm, when rotating speed be more than 90rpm when, calcium silicates be cross-piece
Shape structure, when rotating speed is less than 80rpm, stirring can not make big solid phase particles be suspended in liquid phase, and solid phase particles are heavy by occurring
Form sediment, when therefore rotating speed is in the range of 80～90rpm, the granularity change of calcium silicates less, is conducive to stirring.
Preferably, step 3) in normal temperature and pressure be 17～27 DEG C of temperature, pressure 0.8～1Mpa.
Preferably, step 5) in temperature be 110～120 DEG C.
The present invention, due to employing technique scheme, has the advantages that：
Because zirconium slag has the gelling characteristics of uniqueness so as to during static hydrothermal synthesis, reaction raw materials are difficult to sink
Fall, the calcium silicate insulation hole being formed is more, and intercrystalline combines loose, due to having enough growing spaces and not being subject to
The impact of stirring, the vigilant well-grown of preparation under static method, porosity is higher, is more beneficial for preparation and hates oily heat-insulating calcium silicate
Material, compared to other preparation methoies, has larger advantage at aspects such as energy saving, reduces costs；With dynamic method phase
The raw material of specific consumption is few, and water-solid ratio is low, and in the case of the volume identical of reactant, the yield of static method is significantly larger than dynamic method
Yield, great economic benefit can be brought to enterprise, reduce production cost.
Present invention process flow process is simple, and economic benefit substantially, not only simplify the technique hating oily heat-insulating calcium silicate product, fall
Low production cost, and improve the crudy hating oily heat-insulating calcium silicate product.
Specific embodiment
A kind of manufacturing process hating oily heat-insulating calcium silicate product of the present invention, comprises the steps：
1) lime digestion
A, using the method for washing, zirconium slag is processed, first in undressed zirconium slag, adds 6～9 times of water,
Zirconium slag and aqueous solution are sufficiently mixed stratification after stirring, pick upper solution with Glass rod, measured using pH reagent paper
Its pH value；
B, the upper solution after stratification is toppled over, the precipitate of lower floor is added water continuation stirring, repeats above-mentioned washing
Process, until the pH value of measurement is 6.5～7；
C and then carry out ball-milling treatment to the zirconium slag having washed with ball mill, Ball-milling Time is 15～20min, until wearing into
Powder, after 200 mesh sieves, is finally cleared up with 80～90 DEG C of water, is obtained lime white after filtration；
2) mix
By step 1) in be obtained lime white with through activity process after siliceous raw material press water-solid ratio be 10:1 ratio
Stir with water, bentonite Hybrid Heating, mixing speed is 60～150rpm, heating-up temperature is 120～190 DEG C of insulations 4～8
Hour, then adding oleophobic agent and mixed, obtaining serosity it is preferred that heating-up temperature is 140～160 DEG C it is preferred that stirring
Mixing speed is 80～90rpm, and when rotating speed is more than 90rpm, calcium silicates are to intersect laminated structure, when rotating speed is less than 80rpm, stir
Mix and big solid phase particles can not be made to be suspended in liquid phase, solid phase particles will precipitate, and therefore rotating speed is in the range of 80～90rpm
When, the granularity change of calcium silicates less, is conducive to stirring.
3) hydrothermal synthesis reaction
Serosity after stirring place 1～2 hour at normal temperatures and pressures it is preferred that normal temperature and pressure be temperature 17～
27 DEG C, pressure 0.8～1Mpa, make the calcareous raw material in serosity carry out pre-reaction with siliceous raw material, anti-serosity is loaded high pressure
Answer in kettle and carry out hydrothermal synthesis reaction, be not stirred in course of reaction, after the completion of question response, slurry is taken out；
4) extrusion forming
Reacted slurry is passed through pressure forming machine, control pressure is in 2～3.5Mpa；
5) drying and dehydrating
Product after molding is put into dried at a temperature of 100～125 DEG C of baking oven it is preferred that temperature be 110～
120℃；
6) mechanical surface treatment
Dried heat-insulating calcium silicate product is fixed on operating board by clamping tool, then with automatic sander pair
The surface of heat-insulating calcium silicate product carries out mechanical grinding process；
7) check and accept
Finally the product after grinding process is carried out an acceptance inspection, vanning.
Process zirconium slag using method for washing, can effectively remove chloride ion therein, mitigate the gelation polymerization of zirconium slag
Phenomenon, can reduce washing times simultaneously, improve the efficiency of washing, reduce the less granule of particle diameter and run off.
Prepared using static method and hate oily heat-insulating calcium silicate product, environment can not only be effectively protected, using resource, and
And can effectively economize on resources, reduce production cost, obtain higher economic benefit, the market not only improving enhancing enterprise is competing
Strive power, the popularization of calcium silicate insulation can be accelerated again.
Embodiment 1
A kind of manufacturing process hating oily heat-insulating calcium silicate product, comprises the steps：
1) lime digestion
A, using the method for washing, zirconium slag is processed, add 6 times of water first in undressed zirconium slag, by zirconium
Slag and aqueous solution are sufficiently mixed stratification after stirring, and pick upper solution with Glass rod, measure its pH using pH reagent paper
Value；
B, the upper solution after stratification is toppled over, the precipitate of lower floor is added water continuation stirring, repeats above-mentioned washing
Process, until the pH value of measurement is 6.5～7；
C and then carry out ball-milling treatment to the zirconium slag having washed with ball mill, Ball-milling Time is 15～20min, until wearing into
Powder, after 200 mesh sieves, is finally cleared up with 80 DEG C of water, is obtained lime white after filtration；
2) mix
By step 1) in be obtained lime white with through activity process after siliceous raw material press water-solid ratio be 10:1 ratio
Stir with water, bentonite Hybrid Heating, mixing speed is 60rpm, heating-up temperature is 120 DEG C and is incubated 4～8 hours, then
Add oleophobic agent to be mixed, obtain serosity；
3) hydrothermal synthesis reaction
Serosity after stirring is placed 1～2 hour at normal temperatures and pressures, makes the calcareous raw material in serosity former with siliceous
Material carries out pre-reaction, carries out hydrothermal synthesis reaction loading serosity in autoclave, is not stirred, treats in course of reaction
After the completion of reaction, slurry is taken out；
4) extrusion forming
Reacted slurry is passed through pressure forming machine, control pressure is in 2～3.5Mpa；
5) drying and dehydrating
Product after molding is put into dried at a temperature of 100 DEG C of baking oven；
6) mechanical surface treatment
Dried heat-insulating calcium silicate product is fixed on operating board by clamping tool, then with automatic sander pair
The surface of heat-insulating calcium silicate product carries out mechanical grinding process；
7) check and accept
Finally the product after grinding process is carried out an acceptance inspection, vanning.
Embodiment 2
A kind of manufacturing process hating oily heat-insulating calcium silicate product, comprises the steps：
1) lime digestion
A, using the method for washing, zirconium slag is processed, add 7 times of water first in undressed zirconium slag, by zirconium
Slag and aqueous solution are sufficiently mixed stratification after stirring, and pick upper solution with Glass rod, measure its pH using pH reagent paper
Value；
B, the upper solution after stratification is toppled over, the precipitate of lower floor is added water continuation stirring, repeats above-mentioned washing
Process, until the pH value of measurement is 6.5～7；
C and then carry out ball-milling treatment to the zirconium slag having washed with ball mill, Ball-milling Time is 15～20min, until wearing into
Powder, after 200 mesh sieves, is finally cleared up with 84 DEG C of water, is obtained lime white after filtration；
2) mix
By step 1) in be obtained lime white with through activity process after siliceous raw material press water-solid ratio be 10:1 ratio
Stir with water, bentonite Hybrid Heating, mixing speed is 80rpm, heating-up temperature is 140 DEG C and is incubated 4～8 hours, then
Add oleophobic agent to be mixed, obtain serosity；
3) hydrothermal synthesis reaction
Serosity after stirring is placed 1～2 hour at normal temperatures and pressures, makes the calcareous raw material in serosity former with siliceous
Material carries out pre-reaction, carries out hydrothermal synthesis reaction loading serosity in autoclave, is not stirred, treats in course of reaction
After the completion of reaction, slurry is taken out；
4) extrusion forming
Reacted slurry is passed through pressure forming machine, control pressure is in 2～3.5Mpa；
5) drying and dehydrating
Product after molding is put into dried at a temperature of 110 DEG C of baking oven；
6) mechanical surface treatment
Dried heat-insulating calcium silicate product is fixed on operating board by clamping tool, then with automatic sander pair
The surface of heat-insulating calcium silicate product carries out mechanical grinding process；
7) check and accept
Finally the product after grinding process is carried out an acceptance inspection, vanning.
Embodiment 3
A kind of manufacturing process hating oily heat-insulating calcium silicate product, comprises the steps：
1) lime digestion
A, using the method for washing, zirconium slag is processed, add 8 times of water first in undressed zirconium slag, by zirconium
Slag and aqueous solution are sufficiently mixed stratification after stirring, and pick upper solution with Glass rod, measure its pH using pH reagent paper
Value；
B, the upper solution after stratification is toppled over, the precipitate of lower floor is added water continuation stirring, repeats above-mentioned washing
Process, until the pH value of measurement is 6.5～7；
C and then carry out ball-milling treatment to the zirconium slag having washed with ball mill, Ball-milling Time is 15～20min, until wearing into
Powder, after 200 mesh sieves, is finally cleared up with 88 DEG C of water, is obtained lime white after filtration；
2) mix
By step 1) in be obtained lime white with through activity process after siliceous raw material press water-solid ratio be 10:1 ratio
Stir with water, bentonite Hybrid Heating, mixing speed is 90rpm, heating-up temperature is 160 DEG C and is incubated 4～8 hours, then
Add oleophobic agent to be mixed, obtain serosity；
3) hydrothermal synthesis reaction
Serosity after stirring is placed 1～2 hour at normal temperatures and pressures, makes the calcareous raw material in serosity former with siliceous
Material carries out pre-reaction, carries out hydrothermal synthesis reaction loading serosity in autoclave, is not stirred, treats in course of reaction
After the completion of reaction, slurry is taken out；
4) extrusion forming
Reacted slurry is passed through pressure forming machine, control pressure is in 2～3.5Mpa；
5) drying and dehydrating
Product after molding is put into dried at a temperature of 120 DEG C of baking oven；
6) mechanical surface treatment
Dried heat-insulating calcium silicate product is fixed on operating board by clamping tool, then with automatic sander pair
The surface of heat-insulating calcium silicate product carries out mechanical grinding process；
7) check and accept
Finally the product after grinding process is carried out an acceptance inspection, vanning.
Embodiment 4
A kind of manufacturing process hating oily heat-insulating calcium silicate product, comprises the steps：
1) lime digestion
A, using the method for washing, zirconium slag is processed, add 9 times of water first in undressed zirconium slag, by zirconium
Slag and aqueous solution are sufficiently mixed stratification after stirring, and pick upper solution with Glass rod, measure its pH using pH reagent paper
Value；
B, the upper solution after stratification is toppled over, the precipitate of lower floor is added water continuation stirring, repeats above-mentioned washing
Process, until the pH value of measurement is 6.5～7；
C and then carry out ball-milling treatment to the zirconium slag having washed with ball mill, Ball-milling Time is 15～20min, until wearing into
Powder, after 200 mesh sieves, is finally cleared up with 90 DEG C of water, is obtained lime white after filtration；
2) mix
By step 1) in be obtained lime white with through activity process after siliceous raw material press water-solid ratio be 10:1 ratio
Stir with water, bentonite Hybrid Heating, mixing speed is 150rpm, heating-up temperature is 190 DEG C and is incubated 4～8 hours, then
Add oleophobic agent to be mixed, obtain serosity；
3) hydrothermal synthesis reaction
Serosity after stirring is placed 1～2 hour at normal temperatures and pressures, makes the calcareous raw material in serosity former with siliceous
Material carries out pre-reaction, carries out hydrothermal synthesis reaction loading serosity in autoclave, is not stirred, treats in course of reaction
After the completion of reaction, slurry is taken out；
4) extrusion forming
Reacted slurry is passed through pressure forming machine, control pressure is in 2～3.5Mpa；
5) drying and dehydrating
Product after molding is put into dried at a temperature of 125 DEG C of baking oven；
6) mechanical surface treatment
Dried heat-insulating calcium silicate product is fixed on operating board by clamping tool, then with automatic sander pair
The surface of heat-insulating calcium silicate product carries out mechanical grinding process；
7) check and accept
Finally the product after grinding process is carried out an acceptance inspection, vanning.
These are only the specific embodiment of the present invention, but the technical characteristic of the present invention is not limited thereto.Any with this
Based on bright, for realizing essentially identical technique effect, done ground simple change, equivalent or modification etc., all cover
Among protection scope of the present invention.
Claims (5)
1. a kind of manufacturing process hating oily heat-insulating calcium silicate product is it is characterised in that comprise the steps：
1) lime digestion
A, using the method for washing, zirconium slag is processed, add 6～9 times of water first in undressed zirconium slag, by zirconium
Slag and aqueous solution are sufficiently mixed stratification after stirring, and pick upper solution with Glass rod, measure its pH using pH reagent paper
Value；
B, the upper solution after stratification is toppled over, the precipitate of lower floor is added water continuation stirring, repeats above-mentioned washing process,
Until the pH value of measurement is 6.5～7；
C and then ball-milling treatment is carried out to the zirconium slag having washed with ball mill, Ball-milling Time is 15～20min, until grinds
End, after 200 mesh sieves, is finally cleared up with 80～90 DEG C of water, is obtained lime white after filtration；
2) mix
By step 1) in be obtained lime white with through activity process after siliceous raw material press water-solid ratio be 10:1 ratio and water,
Bentonite Hybrid Heating stirs, and mixing speed is 60～150rpm, and heating-up temperature is 120～190 DEG C and is incubated 4～8 hours,
Then add oleophobic agent to be mixed, obtain serosity；
3) hydrothermal synthesis reaction
Serosity after stirring is placed 1～2 hour at normal temperatures and pressures, so that the calcareous raw material in serosity is entered with siliceous raw material
Row pre-reaction, carries out hydrothermal synthesis reaction loading serosity in autoclave, is not stirred, question response in course of reaction
After the completion of slurry is taken out；
4) extrusion forming
Reacted slurry is passed through pressure forming machine, control pressure is in 2～3.5Mpa；
5) drying and dehydrating
Product after molding is put into dried at a temperature of 100～125 DEG C of baking oven；
6) mechanical surface treatment
Dried heat-insulating calcium silicate product is fixed on operating board by clamping tool, then with automatic sander to silicic acid
The surface of calcium insulating product carries out mechanical grinding process；
7) check and accept
Finally the product after grinding process is carried out an acceptance inspection, vanning.
2. a kind of manufacturing process hating oily heat-insulating calcium silicate product described in claim 1 it is characterised in that：Step 2) in institute
State heating-up temperature and be 140～160 DEG C.
3. a kind of manufacturing process hating oily heat-insulating calcium silicate product described in claim 1 it is characterised in that：Step 2) in institute
Stating mixing speed is 80～90rpm.
4. a kind of manufacturing process hating oily heat-insulating calcium silicate product described in claim 1 it is characterised in that：Step 3) in institute
Stating normal temperature and pressure is 17～27 DEG C of temperature, pressure 0.8～1Mpa.
5. a kind of manufacturing process hating oily heat-insulating calcium silicate product described in claim 1 it is characterised in that：Step 5) in institute
State temperature and be 110～120 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610766185.6A CN106396594A (en) | 2016-08-30 | 2016-08-30 | Process for manufacturing oleophobic calcium silicate heat insulation product |
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| CN201610766185.6A CN106396594A (en) | 2016-08-30 | 2016-08-30 | Process for manufacturing oleophobic calcium silicate heat insulation product |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107365134A (en) * | 2017-07-24 | 2017-11-21 | 浙江阿斯克建材科技股份有限公司 | A kind of multifunctional silicone treasured plate and its manufacture method for discharging anion |
| CN107553685A (en) * | 2017-07-24 | 2018-01-09 | 浙江阿斯克建材科技股份有限公司 | A kind of process for preparing multi-functional heat-insulating calcium silicate product |
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| CN102731120A (en) * | 2012-07-07 | 2012-10-17 | 蚌埠中恒新材料科技有限责任公司 | Method for preparing heat preservation material tobermorite by using zirconium-silicon slag |
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| CN102731120A (en) * | 2012-07-07 | 2012-10-17 | 蚌埠中恒新材料科技有限责任公司 | Method for preparing heat preservation material tobermorite by using zirconium-silicon slag |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107365134A (en) * | 2017-07-24 | 2017-11-21 | 浙江阿斯克建材科技股份有限公司 | A kind of multifunctional silicone treasured plate and its manufacture method for discharging anion |
| CN107553685A (en) * | 2017-07-24 | 2018-01-09 | 浙江阿斯克建材科技股份有限公司 | A kind of process for preparing multi-functional heat-insulating calcium silicate product |
| CN107365134B (en) * | 2017-07-24 | 2020-06-26 | 浙江阿斯克建材科技股份有限公司 | Multifunctional silicon precious board capable of releasing negative ions and manufacturing method thereof |
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Application publication date: 20170215 |