CN108623198A - A kind of application of gypsum and preparation method thereof - Google Patents
A kind of application of gypsum and preparation method thereof Download PDFInfo
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- CN108623198A CN108623198A CN201810642188.8A CN201810642188A CN108623198A CN 108623198 A CN108623198 A CN 108623198A CN 201810642188 A CN201810642188 A CN 201810642188A CN 108623198 A CN108623198 A CN 108623198A
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- gypsum
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- 239000010440 gypsum Substances 0.000 title claims abstract description 261
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 261
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000013078 crystal Substances 0.000 claims abstract description 68
- 239000006227 byproduct Substances 0.000 claims abstract description 54
- 239000000843 powder Substances 0.000 claims abstract description 49
- 238000003756 stirring Methods 0.000 claims abstract description 47
- 238000006243 chemical reaction Methods 0.000 claims abstract description 42
- 238000001035 drying Methods 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 37
- 238000000227 grinding Methods 0.000 claims abstract description 36
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 33
- 238000004078 waterproofing Methods 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 238000000926 separation method Methods 0.000 claims abstract description 29
- 239000002002 slurry Substances 0.000 claims abstract description 27
- 239000003607 modifier Substances 0.000 claims abstract description 26
- 238000012216 screening Methods 0.000 claims abstract description 26
- 239000007787 solid Substances 0.000 claims abstract description 24
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 19
- 230000018044 dehydration Effects 0.000 claims abstract description 17
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 17
- 239000004575 stone Substances 0.000 claims abstract description 17
- 238000003860 storage Methods 0.000 claims abstract description 13
- 239000000047 product Substances 0.000 claims abstract description 12
- 239000004576 sand Substances 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000011426 gypsum mortar Substances 0.000 claims description 27
- 238000005507 spraying Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 12
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical group OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims description 10
- 206010001497 Agitation Diseases 0.000 claims description 10
- 238000013019 agitation Methods 0.000 claims description 10
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 10
- 239000001630 malic acid Substances 0.000 claims description 10
- 235000011090 malic acid Nutrition 0.000 claims description 10
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 239000006071 cream Substances 0.000 claims description 6
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical group [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 5
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical group [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 5
- 238000003801 milling Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000007790 scraping Methods 0.000 claims description 5
- 229920002545 silicone oil Polymers 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 claims description 4
- GHQFLMULNSGOAR-UHFFFAOYSA-N 2,3-dihydroxybutanedioic acid;sodium Chemical compound [Na].OC(=O)C(O)C(O)C(O)=O GHQFLMULNSGOAR-UHFFFAOYSA-N 0.000 claims 1
- 238000002425 crystallisation Methods 0.000 description 8
- 230000008025 crystallization Effects 0.000 description 8
- 239000002699 waste material Substances 0.000 description 8
- 238000007664 blowing Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 238000010422 painting Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 3
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 235000013312 flour Nutrition 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- C04B11/00—Calcium sulfate cements
- C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00577—Coating or impregnation materials applied by spraying
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention discloses a kind of applications of gypsum and preparation method thereof, using industry by-product gypsum as raw material, Gypsum slurry is made later in addition crystal modifier, coagulator, waterproofing agent, talcum powder and water, by weight, 100 parts of 100 parts of industry by-product gypsum, 14 parts of crystal modifier, 0.1 0.9 parts of coagulator, 0.2 0.5 parts of waterproofing agent, 28 parts of talcum powder and water；S1, screening：Industry by-product gypsum is screened, the sand and stone inside industry by-product gypsum are removed；S2, stirring：Industry by-product gypsum after screening is carried out plus water stirs；S3, hydro-thermal reaction：Gypsum slurry after stirring is put into reaction kettle and carries out hydro-thermal reaction, generates gypsum crystal；S4, separation of solid and liquid：Gypsum crystal is separated by solid-liquid separation by filter screen；S5, drying：Solid-state gypsum is put into progress high temperature dehydration drying in dryer；S6, grinding：Solid-state gypsum after dehydration and drying is put into grinder and crushes grinding；S7, finished product：Package and storage is sealed to the gypsum powder after grinding.
Description
Technical field
The present invention relates to the preparation of building gypsum and applied technical field, the application of specially a kind of gypsum and its preparation side
Method.
Background technology
Nowadays, the energy and environmental issue have become the two big bottlenecks for restricting economic development, and energy-saving and emission-reduction are even more to become
The common recognition in the whole world, is related to the propulsion of National Sustainable Development Strategies, in the case where pursuing background of the economy with environment harmonious development, stone
Cream is being increasingly becoming market mainstream trend as environmentally protective, low-carbon new material, and gypsum is monoclinic system mineral, is main
It is the hydrate of calcium sulfate (CaSO4) to want chemical composition, and gypsum is a kind of widely used industrial materials and construction material, can be used
In cement retarder, gypsum building products, modelling, medical food additive, gas washing in SA production, filler and paint filler
Deng the microcellular structure and thermal dehydration of gypsum and its product are allowed to have excellent sound insulation, heat-insulated and fire protecting performance, with building
The development of industry is built, building frame construction has become trend, and air entrained concrete filling wall is widely used, masonry plastering hollowing
Control is hardly resulted in cracking, however brushing gypsum plastering exactly compensates for these disadvantages, brushing gypsum is as a kind of green ring
Wall plastering material is protected, is widely used, but brushing gypsum has the following defects during making and use：
In the spraying process of gypsum mortar, since the setting rate of gypsum is slower so that after spraying painting finishes, wall surface
Gypsum mortar can downwards trickle with wall, cause to be difficult to be molded；After formation, if wall gets wet, since gypsum has
Water absorbing properties can make the gypsum water swelling of wall surface and fall off；And during making, due to needing to gypsum
Carrying out hydro-thermal reaction makes its crystallization, and when being separated by solid-liquid separation, reaction kettle surface can also be infected with gypsum crystallization, if not to these
Crystallization is handled, and is a kind of waste to gypsum, can be increased the manufacturing cost of enterprise；When dry, if just with baking
Dry machine dries gypsum crystallization, undoubtedly may require that very long drying time, and the fabrication cycle of gypsum can be made elongated, reduces
The yield that gypsum makes；When carrying out gypsum grinding, grinder inner wall and grinding roller surface can adhesion gypsum powder, can make
At the waste of gypsum powder, so, people are badly in need of a kind of application of gypsum and preparation method thereof to solve the above problems.
Invention content
The present invention provides a kind of application of gypsum and preparation method thereof, can effectively solve mentioned above in the background art
In the spraying process of gypsum mortar, since the setting rate of gypsum is slower so that after spraying painting finishes, wall surface
Gypsum mortar can downwards trickle with wall, cause to be difficult to be molded；After formation, if wall gets wet, since gypsum has
Water absorbing properties can make the gypsum water swelling of wall surface and fall off；And during making, due to needing to gypsum
Carrying out hydro-thermal reaction makes its crystallization, and when being separated by solid-liquid separation, reaction kettle surface can also be infected with gypsum crystallization, if not to these
Crystallization is handled, and is a kind of waste to gypsum, can be increased the manufacturing cost of enterprise；When dry, if just with baking
Dry machine dries gypsum crystallization, undoubtedly may require that very long drying time, and the fabrication cycle of gypsum can be made elongated, reduces
The yield that gypsum makes；When carrying out gypsum grinding, grinder inner wall and grinding roller surface can adhesion gypsum powder, can make
At gypsum powder waste the problem of.
To achieve the above object, the present invention provides the following technical solutions：A kind of preparation method of gypsum, with industrial by-product stone
Cream is basic raw material, and Gypsum slurry is made later in added crystal modifier, coagulator, waterproofing agent, talcum powder and water, by weight
Meter, 100 parts of industry by-product gypsum, 1-4 parts of crystal modifier, 0.1-0.9 parts of coagulator, 0.2-0.5 parts of waterproofing agent, 2-8 parts of talcum powder
With 100 parts of water.
According to above-mentioned technical proposal,
S1, screening：Industry by-product gypsum is screened, the sand and stone inside industry by-product gypsum are removed；
S2, stirring：Industry by-product gypsum after screening is carried out plus water stirs, and sequentially adds 1-4 parts of crystal modifier, coagulator
2-8 parts of 0.1-0.9 parts, 0.2-0.5 parts of waterproofing agent and talcum powder are stirred；
S3, hydro-thermal reaction：Gypsum slurry after stirring is put into reaction kettle and carries out hydro-thermal reaction, generates gypsum crystal；
S4, separation of solid and liquid：Gypsum crystal is separated by solid-liquid separation by filter screen, obtains solid-state gypsum；
S5, drying：Solid-state gypsum is put into progress high temperature dehydration drying in dryer；
S6, grinding：Solid-state gypsum after dehydration and drying is put into grinder and crushes grinding, obtains gypsum powder；
S7, finished product：Package and storage is sealed to the gypsum powder after grinding.
According to above-mentioned technical proposal, the crystal modifier is the mixing of malic acid, natrium malicum or malic acid and natrium malicum
Object；The coagulator is aluminum sulfate；The waterproofing agent is silicate or silicone oil.
According to above-mentioned technical proposal, in the step S1, industry by-product gypsum is ground into powder, sieve is then passed through
Powdered industry by-product gypsum is screened, the sand and stone in industry by-product gypsum are removed.
According to above-mentioned technical proposal, in the step S2, the industry by-product gypsum powder after screening is divided into 100
Part, and be put into reaction kettle, 100 parts of water, 1-4 parts of crystal modifier, 0.1-0.9 parts of coagulator, waterproof is added into reaction kettle successively
2-8 parts of 0.2-0.5 parts of agent and talcum powder, and the industry by-product gypsum after mixing is stirred by puddle support, it is stirring
During, the pH value of the Gypsum slurry in reaction kettle is measured by PH measuring instruments, when stirring is 5 minutes a length of, stirring completion
After form Gypsum slurry.
According to above-mentioned technical proposal, in the step S3 and S4, the Gypsum slurry that stirring is formed later is put into reaction kettle
Middle carry out hydro-thermal reaction, when hydro-thermal reaction, are 1 hour a length of, after hydro-thermal reaction is completed, form solid gypsum crystal；Passed through
Strainer is separated by solid-liquid separation the solid gypsum crystal in reaction kettle, after releasing, by scraper plate to the inner wall of reaction kettle into
Scraper of row, and separation of solid and liquid is re-started to the gypsum crystal after scraper.
According to above-mentioned technical proposal, in the step S5, the gypsum crystal after separation of solid and liquid is put into inside dryer,
And the control switch of drying air fan is opened, using the air circulation inside drying air fan blowing acceleration dryer, drying time period is
30 minutes.
According to above-mentioned technical proposal, in the step S6 and S7, the gypsum crystal after dehydration and drying is put into grinder
In be ground, and the gypsum powder after grinding is screened by sieve, and the mesh diameter of sieve is 0.1mm, is not had
There is the gypsum powder for reaching screening criteria that can rejoin in grinding, regrind, until the diameter of gypsum powder reaches
Screening criteria carries out secondary scraper, and screen to scraper by material scraping plate to grinder inner wall after milling is completed；
After gypsum completes, it is stored in dry space and conserves 2 days, package and storage is sealed to gypsum powder, is being packed
Bag is internal to be put into drier.
A kind of application in gypsum gypsum mortar spraying indoors.
According to above-mentioned technical proposal, the ratio of the gypsum and water is 1：0.8, the primary stirring and secondary agitation
Duration is 30 minutes, 10 minutes a length of when being spaced between the primary stirring and secondary agitation, when the gypsum mortar uses
A length of 20 minutes.
Compared with prior art, beneficial effects of the present invention：Present system flow is scientific and reasonable, safe and convenient to use：
1, be provided with coagulator, when carrying out gypsum mortar spraying, finished in spraying, and by painting after, by coagulator,
The solidification that gypsum mortar can effectively be accelerated, it is excessively slow to can effectively prevent gypsum sets speed, and gypsum mortar is caused to drip,
The efficiency of wall gypsum mortar spraying can be effectively improved, meanwhile, reduce the waste of gypsum mortar.
2, it is provided with waterproofing agent, after gypsum mortar sprays and solidifies, when surface of wall gets wet, by waterproofing agent,
Can effectively prevent gypsum water suction causes to expand, and influences the service life of gypsum, can effectively improve the water proofing property of gypsum
Can, extend the service life of gypsum.
3, once scraper is set, when being separated by solid-liquid separation to gypsum crystal, by a scraper to hydro-thermal reaction
The scraper of reaction kettle inner wall is handled, and can effectively be cleaned to reaction kettle inner wall, does not interfere with the hydro-thermal reaction of next time, together
When, it can effectively prevent the waste to gypsum crystal.
4, it is provided with secondary scraper, scraper processing is carried out to grinder inner wall by secondary scraper, avoids gypsum powder
Grinder inner wall is sticked in, the cleaning difficulty of grinder is reduced, the cost of enterprise's manufacture gypsum has been saved, has improved the production of gypsum
Amount.
5, it is provided with wind turbine and waterproof, by wind turbine, dryer inner air can be made to circulate, accelerated inside dryer
The drying of gypsum crystal accelerates the efficiency of gypsum production, improves the yield of gypsum, and more economic effect is brought to enterprise
Benefit can effectively prevent final gypsum product when placing by waterproof, and the water in air is absorbed due to the water absorbing properties of gypsum
Point, cause final gypsum product rotten, effectively extends the storage time of gypsum.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.
In the accompanying drawings.
Fig. 1 is the system step schematic diagram of the present invention.
Fig. 2 is the system flow diagram schematic diagram of the present invention.
Specific implementation mode
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment 1：As shown in Figs. 1-2, the present invention provides a kind of technical solution, a kind of preparation method of gypsum, with industry
By-product gypsum is basic raw material, and Gypsum slurry is made later in added crystal modifier, coagulator, waterproofing agent, talcum powder and water, by weight
Measure part meter, 100 parts of industry by-product gypsum, 2 parts of crystal modifier, 0.3 part of coagulator, 0.2 part of waterproofing agent, 4 parts of talcum powder and water 100
Part.
According to above-mentioned technical proposal.
S1, screening：Industry by-product gypsum is screened, the sand and stone inside industry by-product gypsum are removed.
S2, stirring：Industry by-product gypsum after screening is carried out plus water stirs, and sequentially adds 2 parts of crystal modifier, solidification
4 parts of 0.3 part of agent, 0.2 part of waterproofing agent and talcum powder are stirred.
S3, hydro-thermal reaction：Gypsum slurry after stirring is put into reaction kettle and carries out hydro-thermal reaction, it is brilliant to generate gypsum
Body.
S4, separation of solid and liquid：Gypsum crystal is separated by solid-liquid separation by filter screen, obtains solid-state gypsum.
S5, drying：Solid-state gypsum is put into progress high temperature dehydration drying in dryer.
S6, grinding：Solid-state gypsum after dehydration and drying is put into grinder and crushes grinding, obtains land plaster
End.
S7, finished product：Package and storage is sealed to the gypsum powder after grinding.
According to above-mentioned technical proposal, crystal modifier is the mixture of malic acid, natrium malicum or malic acid and natrium malicum；It is solidifying
Gu agent is aluminum sulfate；Waterproofing agent is silicate or silicone oil.
According to above-mentioned technical proposal, in step S1, industry by-product gypsum is ground into powder, then by sieve to powder
The industry by-product gypsum of last shape is screened, and sand and stone in industry by-product gypsum are removed.
According to above-mentioned technical proposal, in step S2, the industry by-product gypsum powder after screening is divided into 100 parts, and
It is put into reaction kettle, 100 parts of water, 2 parts of crystal modifier, 0.3 part of coagulator, 0.2 part of waterproofing agent is added into reaction kettle successively and slides
4 parts of mountain flour, and the industry by-product gypsum after mixing is stirred by puddle support, during stirring, surveyed by PH
The pH value for the Gypsum slurry that instrument measures in reaction kettle is measured, when stirring is 5 minutes a length of, and stirring forms Gypsum slurry after completing.
According to above-mentioned technical proposal, in step S3 and S4, will Gypsum slurry that stirring is formed later be put into reaction kettle into
Row hydro-thermal reaction, when hydro-thermal reaction, are 1 hour a length of, after hydro-thermal reaction is completed, form solid gypsum crystal；Pass through filter screen
Solid gypsum crystal in reaction kettle is separated by solid-liquid separation, after releasing, one is carried out to the inner wall of reaction kettle by scraper plate
Secondary scraper, and separation of solid and liquid is re-started to the gypsum crystal after scraper.
According to above-mentioned technical proposal, in step S5, the gypsum crystal after separation of solid and liquid is put into inside dryer, and is beaten
The control switch for opening drying air fan, it is 30 points to accelerate the air circulation inside dryer, drying time period using drying air fan blowing
Clock.
According to above-mentioned technical proposal, in step S6 and S7, by the gypsum crystal after dehydration and drying be put into grinder into
Row grinding, and the gypsum powder after grinding is screened by sieve, and the mesh diameter of sieve is 0.1mm, is not reached
Gypsum powder to screening criteria can rejoin in grinding, be regrind, until the diameter of gypsum powder reaches screening
Standard carries out secondary scraper, and screen to scraper by material scraping plate to grinder inner wall after milling is completed；Work as stone
After cream completes, it is stored in dry space and conserves 2 days, package and storage is sealed to gypsum powder, in packaging bag
Portion is put into drier.
A kind of application in gypsum gypsum mortar spraying indoors.
According to above-mentioned technical proposal, the ratio of gypsum and water is 1：0.8, primary stirring and secondary agitation duration are
30 minutes, 10 minutes a length of when being spaced between primary stirring and secondary agitation, gypsum mortar was 20 minutes a length of when using.
Embodiment 2：As shown in Figs. 1-2, the present invention provides a kind of technical solution, a kind of preparation method of gypsum, with industry
By-product gypsum is basic raw material, and Gypsum slurry is made later in added crystal modifier, coagulator, waterproofing agent, talcum powder and water, by weight
Measure part meter, 100 parts of industry by-product gypsum, 3 parts of crystal modifier, 0.5 part of coagulator, 0.3 part of waterproofing agent, 5 parts of talcum powder and water 100
Part.
According to above-mentioned technical proposal,
S1, screening：Industry by-product gypsum is screened, the sand and stone inside industry by-product gypsum are removed；
S2, stirring：Industry by-product gypsum after screening is carried out plus water stirs, and sequentially adds 3 parts of crystal modifier, coagulator
5 parts of 0.5 part, 0.3 part of waterproofing agent and talcum powder are stirred；
S3, hydro-thermal reaction：Gypsum slurry after stirring is put into reaction kettle and carries out hydro-thermal reaction, generates gypsum crystal；
S4, separation of solid and liquid：Gypsum crystal is separated by solid-liquid separation by filter screen, obtains solid-state gypsum；
S5, drying：Solid-state gypsum is put into progress high temperature dehydration drying in dryer；
S6, grinding：Solid-state gypsum after dehydration and drying is put into grinder and crushes grinding, obtains gypsum powder；
S7, finished product：Package and storage is sealed to the gypsum powder after grinding.
According to above-mentioned technical proposal, crystal modifier is the mixture of malic acid, natrium malicum or malic acid and natrium malicum；It is solidifying
Gu agent is aluminum sulfate；Waterproofing agent is silicate or silicone oil.
According to above-mentioned technical proposal, in step S1, industry by-product gypsum is ground into powder, then by sieve to powder
The industry by-product gypsum of last shape is screened, and sand and stone in industry by-product gypsum are removed.
According to above-mentioned technical proposal, in step S2, the industry by-product gypsum powder after screening is divided into 100 parts, and
It is put into reaction kettle, 100 parts of water, 3 parts of crystal modifier, 0.5 part of coagulator, 0.3 part of waterproofing agent is added into reaction kettle successively and slides
5 parts of mountain flour, and the industry by-product gypsum after mixing is stirred by puddle support, during stirring, surveyed by PH
The pH value for the Gypsum slurry that instrument measures in reaction kettle is measured, when stirring is 5 minutes a length of, and stirring forms Gypsum slurry after completing.
According to above-mentioned technical proposal, in step S3 and S4, will Gypsum slurry that stirring is formed later be put into reaction kettle into
Row hydro-thermal reaction, when hydro-thermal reaction, are 1 hour a length of, after hydro-thermal reaction is completed, form solid gypsum crystal；Pass through filter screen
Solid gypsum crystal in reaction kettle is separated by solid-liquid separation, after releasing, one is carried out to the inner wall of reaction kettle by scraper plate
Secondary scraper, and separation of solid and liquid is re-started to the gypsum crystal after scraper.
According to above-mentioned technical proposal, in step S5, the gypsum crystal after separation of solid and liquid is put into inside dryer, and is beaten
The control switch for opening drying air fan, it is 30 points to accelerate the air circulation inside dryer, drying time period using drying air fan blowing
Clock.
According to above-mentioned technical proposal, in step S6 and S7, by the gypsum crystal after dehydration and drying be put into grinder into
Row grinding, and the gypsum powder after grinding is screened by sieve, and the mesh diameter of sieve is 0.1mm, is not reached
Gypsum powder to screening criteria can rejoin in grinding, be regrind, until the diameter of gypsum powder reaches screening
Standard carries out secondary scraper, and screen to scraper by material scraping plate to grinder inner wall after milling is completed；Work as stone
After cream completes, it is stored in dry space and conserves 2 days, package and storage is sealed to gypsum powder, in packaging bag
Portion is put into drier.
A kind of application in gypsum gypsum mortar spraying indoors.
According to above-mentioned technical proposal, the ratio of gypsum and water is 1：0.8, primary stirring and secondary agitation duration are
30 minutes, 10 minutes a length of when being spaced between primary stirring and secondary agitation, gypsum mortar was 20 minutes a length of when using.
Embodiment 3：As shown in Figs. 1-2, the present invention provides a kind of technical solution, a kind of preparation method of gypsum, with industry
By-product gypsum is basic raw material, and Gypsum slurry is made later in added crystal modifier, coagulator, waterproofing agent, talcum powder and water, by weight
Measure part meter, 100 parts of industry by-product gypsum, 4 parts of crystal modifier, 0.7 part of coagulator, 0.4 part of waterproofing agent, 6 parts of talcum powder and water 100
Part.
According to above-mentioned technical proposal.
S1, screening：Industry by-product gypsum is screened, the sand and stone inside industry by-product gypsum are removed；
S2, stirring：Industry by-product gypsum after screening is carried out plus water stirs, and sequentially adds 4 parts of crystal modifier, coagulator
6 parts of 0.7 part, 0.4 part of waterproofing agent and talcum powder are stirred；
S3, hydro-thermal reaction：Gypsum slurry after stirring is put into reaction kettle and carries out hydro-thermal reaction, generates gypsum crystal；
S4, separation of solid and liquid：Gypsum crystal is separated by solid-liquid separation by filter screen, obtains solid-state gypsum；
S5, drying：Solid-state gypsum is put into progress high temperature dehydration drying in dryer；
S6, grinding：Solid-state gypsum after dehydration and drying is put into grinder and crushes grinding, obtains gypsum powder；
S7, finished product：Package and storage is sealed to the gypsum powder after grinding.
According to above-mentioned technical proposal, crystal modifier is the mixture of malic acid, natrium malicum or malic acid and natrium malicum；It is solidifying
Gu agent is aluminum sulfate；Waterproofing agent is silicate or silicone oil.
According to above-mentioned technical proposal, in step S1, industry by-product gypsum is ground into powder, then by sieve to powder
The industry by-product gypsum of last shape is screened, and sand and stone in industry by-product gypsum are removed.
According to above-mentioned technical proposal, in step S2, the industry by-product gypsum powder after screening is divided into 100 parts, and
It is put into reaction kettle, 100 parts of water, 4 parts of crystal modifier, 0.7 part of coagulator, 0.4 part of waterproofing agent is added into reaction kettle successively and slides
6 parts of mountain flour, and the industry by-product gypsum after mixing is stirred by puddle support, during stirring, surveyed by PH
The pH value for the Gypsum slurry that instrument measures in reaction kettle is measured, when stirring is 5 minutes a length of, and stirring forms Gypsum slurry after completing.
According to above-mentioned technical proposal, in step S3 and S4, will Gypsum slurry that stirring is formed later be put into reaction kettle into
Row hydro-thermal reaction, when hydro-thermal reaction, are 1 hour a length of, after hydro-thermal reaction is completed, form solid gypsum crystal；Pass through filter screen
Solid gypsum crystal in reaction kettle is separated by solid-liquid separation, after releasing, one is carried out to the inner wall of reaction kettle by scraper plate
Secondary scraper, and separation of solid and liquid is re-started to the gypsum crystal after scraper.
According to above-mentioned technical proposal, in step S5, the gypsum crystal after separation of solid and liquid is put into inside dryer, and is beaten
The control switch for opening drying air fan, it is 30 points to accelerate the air circulation inside dryer, drying time period using drying air fan blowing
Clock.
According to above-mentioned technical proposal, in step S6 and S7, by the gypsum crystal after dehydration and drying be put into grinder into
Row grinding, and the gypsum powder after grinding is screened by sieve, and the mesh diameter of sieve is 0.1mm, is not reached
Gypsum powder to screening criteria can rejoin in grinding, be regrind, until the diameter of gypsum powder reaches screening
Standard carries out secondary scraper, and screen to scraper by material scraping plate to grinder inner wall after milling is completed；Work as stone
After cream completes, it is stored in dry space and conserves 2 days, package and storage is sealed to gypsum powder, in packaging bag
Portion is put into drier.
A kind of application in gypsum gypsum mortar spraying indoors.
According to above-mentioned technical proposal, the ratio of gypsum and water is 1：0.8, primary stirring and secondary agitation duration are
30 minutes, 10 minutes a length of when being spaced between primary stirring and secondary agitation, gypsum mortar was 20 minutes a length of when using.
Based on above-mentioned, the advantage of the invention is that：
1, be provided with coagulator, when carrying out gypsum mortar spraying, finished in spraying, and by painting after, by coagulator,
The solidification that gypsum mortar can effectively be accelerated, it is excessively slow to can effectively prevent gypsum sets speed, and gypsum mortar is caused to drip,
The efficiency of wall gypsum mortar spraying can be effectively improved, meanwhile, reduce the waste of gypsum mortar.
2, it is provided with waterproofing agent, after gypsum mortar sprays and solidifies, when surface of wall gets wet, by waterproofing agent,
Can effectively prevent gypsum water suction causes to expand, and influences the service life of gypsum, can effectively improve the water proofing property of gypsum
Can, extend the service life of gypsum.
3, once scraper is set, when being separated by solid-liquid separation to gypsum crystal, by a scraper to hydro-thermal reaction
The scraper of reaction kettle inner wall is handled, and can effectively be cleaned to reaction kettle inner wall, does not interfere with the hydro-thermal reaction of next time, together
When, it can effectively prevent the waste to gypsum crystal.
4, it is provided with secondary scraper, scraper processing is carried out to grinder inner wall by secondary scraper, avoids gypsum powder
Grinder inner wall is sticked in, the cleaning difficulty of grinder is reduced, the cost of enterprise's manufacture gypsum has been saved, has improved the production of gypsum
Amount.
5, it is provided with wind turbine and waterproof, by wind turbine, dryer inner air can be made to circulate, accelerated inside dryer
The drying of gypsum crystal improves the efficiency of gypsum production, improves the yield of gypsum, and more economic effect is brought to enterprise
Benefit can effectively prevent final gypsum product when placing by waterproof, and the water in air is absorbed due to the water absorbing properties of gypsum
Point, cause final gypsum product rotten, effectively extends the storage time of gypsum.
Finally it should be noted that：The foregoing is merely the preferred embodiments of the present invention, are not intended to restrict the invention, to the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, for those skilled in the art, still can be with
Technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the present invention
Within the scope of shield.
Claims (10)
1. a kind of preparation method of gypsum, it is characterised in that：It is basic raw material with industry by-product gypsum, added crystal modifier coagulates
Gu Gypsum slurry is made after agent, waterproofing agent, talcum powder and water, by weight, 100 parts of industry by-product gypsum, crystal modifier 1-4
Part, 0.1-0.9 parts of coagulator, 0.2-0.5 parts of waterproofing agent, 2-8 parts of talcum powder and 100 parts of water.
2. a kind of preparation method of gypsum according to claim 1, it is characterised in that：
S1, screening：Industry by-product gypsum is screened, the sand and stone inside industry by-product gypsum are removed；
S2, stirring：Industry by-product gypsum after screening is carried out plus water stirs, and sequentially adds 1-4 parts of crystal modifier, coagulator
2-8 parts of 0.1-0.9 parts, 0.2-0.5 parts of waterproofing agent and talcum powder are stirred；
S3, hydro-thermal reaction：Gypsum slurry after stirring is put into reaction kettle and carries out hydro-thermal reaction, generates gypsum crystal；
S4, separation of solid and liquid：Gypsum crystal is separated by solid-liquid separation by filter screen, obtains solid-state gypsum；
S5, drying：Solid-state gypsum is put into progress high temperature dehydration drying in dryer；
S6, grinding：Solid-state gypsum after dehydration and drying is put into grinder and crushes grinding, obtains gypsum powder；
S7, finished product：Package and storage is sealed to the gypsum powder after grinding.
3. a kind of preparation method of gypsum according to claim 1, it is characterised in that：The crystal modifier is malic acid, apple
The mixture of tartaric acid sodium or malic acid and natrium malicum；The coagulator is aluminum sulfate；The waterproofing agent is silicate or silicone oil.
4. a kind of preparation method of gypsum according to claim 2, it is characterised in that：It, will be industrial secondary in the step S1
Production gypsum is ground into powder, and is then screened to powdered industry by-product gypsum by sieve, removes industrial by-product stone
Sand in cream and stone.
5. a kind of preparation method of gypsum according to claim 2, it is characterised in that：In the step S2, it will be screened
Industry by-product gypsum powder afterwards is divided into 100 parts, and is put into reaction kettle, and it is brilliant that water 100 part, turn is added into reaction kettle successively
2-8 parts of 1-4 parts of agent, 0.1-0.9 parts of coagulator, 0.2-0.5 parts of waterproofing agent and talcum powder, and by puddle support to mixing after
Industry by-product gypsum is stirred, and during stirring, is measured the Gypsum slurry pH value in reaction kettle by PH measuring instruments, is stirred
A length of 5 minutes when mixing, stirring forms Gypsum slurry after completing.
6. a kind of preparation method of gypsum according to claim 2, it is characterised in that：In the step S3 and S4, it will stir
It mixes the Gypsum slurry formed later and is put into reaction kettle and carry out hydro-thermal reaction, when hydro-thermal reaction is 1 hour a length of, and hydro-thermal reaction is completed
Later, solid gypsum crystal is formed；The solid gypsum crystal in reaction kettle is separated by solid-liquid separation by filter screen, is being detached
Later, a scraper is carried out to the inner wall of reaction kettle by scraper plate, and solid-liquid point is re-started to the gypsum crystal after scraper
From.
7. a kind of preparation method of gypsum according to claim 2, it is characterised in that：In the step S5, by solid-liquid point
It is put into inside dryer from gypsum crystal later, and opens the control switch of drying air fan, dried and accelerated using drying air fan
Air circulation inside dryer, drying time period are 30 minutes.
8. a kind of preparation method of gypsum according to claim 2, it is characterised in that：In the step S6 and S7, it will take off
Gypsum crystal after water drying, which is put into grinder, to be ground, and the gypsum powder after grinding is sieved by sieve
Choosing, and the mesh diameter of sieve is 0.1mm, not reaching the gypsum powder of screening criteria can rejoin in grinding, carry out again
Secondary grinding, until the diameter of gypsum powder reaches screening criteria, after milling is completed, by material scraping plate to grinder inner wall into
The secondary scraper of row, and scraper is screened；After gypsum completes, it is stored in dry space and conserves 2 days, to gypsum
Powder is sealed package and storage, and drier is put into inside packaging bag.
9. the application in a kind of gypsum mortar spraying indoors of gypsum.
10. the application in a kind of gypsum according to claim 9, gypsum mortar spraying indoors, it is characterised in that：Institute
The ratio for stating gypsum and water is 1：0.8, the primary stirring and secondary agitation duration are 30 minutes, the primary stirring
10 minutes a length of when being spaced between secondary agitation, the gypsum mortar is 20 minutes a length of when using.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11091395B2 (en) | 2019-08-20 | 2021-08-17 | Beijing Building Materials Academy Of Sciences Research | Multifunctional gypsum-based mortar and method of making same |
| KR20220036119A (en) * | 2020-09-15 | 2022-03-22 | 경상국립대학교산학협력단 | Biodegradable Film Composition Comprising Surface-Treated Gypsum and Manufacturing Method thereof |
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