CN117886580A - Gypsum board and seed crystal wet-adding production process thereof - Google Patents
Gypsum board and seed crystal wet-adding production process thereof Download PDFInfo
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- CN117886580A CN117886580A CN202311639543.3A CN202311639543A CN117886580A CN 117886580 A CN117886580 A CN 117886580A CN 202311639543 A CN202311639543 A CN 202311639543A CN 117886580 A CN117886580 A CN 117886580A
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- gypsum board
- sodium
- gypsum
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- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 62
- 239000010440 gypsum Substances 0.000 title claims abstract description 62
- 239000013078 crystal Substances 0.000 title claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 title claims description 19
- 239000000654 additive Substances 0.000 claims abstract description 25
- 230000000996 additive effect Effects 0.000 claims abstract description 25
- 239000002270 dispersing agent Substances 0.000 claims abstract description 19
- 238000003756 stirring Methods 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 15
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims abstract description 13
- 229920002472 Starch Polymers 0.000 claims abstract description 13
- 239000008103 glucose Substances 0.000 claims abstract description 13
- 239000003381 stabilizer Substances 0.000 claims abstract description 13
- 239000008107 starch Substances 0.000 claims abstract description 13
- 235000019698 starch Nutrition 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 30
- 239000003365 glass fiber Substances 0.000 claims description 24
- -1 sodium alkyl sulfate Chemical class 0.000 claims description 23
- 239000004088 foaming agent Substances 0.000 claims description 16
- 241001122767 Theaceae Species 0.000 claims description 12
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 12
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 claims description 12
- 239000011507 gypsum plaster Substances 0.000 claims description 12
- PSZYNBSKGUBXEH-UHFFFAOYSA-M naphthalene-1-sulfonate Chemical group C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-M 0.000 claims description 12
- 239000001397 quillaja saponaria molina bark Substances 0.000 claims description 12
- 229930182490 saponin Natural products 0.000 claims description 12
- 150000007949 saponins Chemical class 0.000 claims description 12
- 239000002002 slurry Substances 0.000 claims description 12
- 229910052708 sodium Inorganic materials 0.000 claims description 12
- 239000011734 sodium Substances 0.000 claims description 12
- GCNLRNBDDUYJMP-UHFFFAOYSA-M sodium;2-methylnaphthalene-1-sulfonate Chemical group [Na+].C1=CC=CC2=C(S([O-])(=O)=O)C(C)=CC=C21 GCNLRNBDDUYJMP-UHFFFAOYSA-M 0.000 claims description 12
- UGTZMIPZNRIWHX-UHFFFAOYSA-K sodium trimetaphosphate Chemical compound [Na+].[Na+].[Na+].[O-]P1(=O)OP([O-])(=O)OP([O-])(=O)O1 UGTZMIPZNRIWHX-UHFFFAOYSA-K 0.000 claims description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 6
- 229940077388 benzenesulfonate Drugs 0.000 claims description 6
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 6
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims description 6
- 229920003086 cellulose ether Polymers 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- AZSFNUJOCKMOGB-UHFFFAOYSA-K cyclotriphosphate(3-) Chemical compound [O-]P1(=O)OP([O-])(=O)OP([O-])(=O)O1 AZSFNUJOCKMOGB-UHFFFAOYSA-K 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 239000003546 flue gas Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 5
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 5
- 235000011152 sodium sulphate Nutrition 0.000 claims description 5
- 229910021538 borax Inorganic materials 0.000 claims description 4
- 235000019830 sodium polyphosphate Nutrition 0.000 claims description 4
- 239000004328 sodium tetraborate Substances 0.000 claims description 4
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- VEUACKUBDLVUAC-UHFFFAOYSA-N [Na].[Ca] Chemical compound [Na].[Ca] VEUACKUBDLVUAC-UHFFFAOYSA-N 0.000 claims description 3
- 235000015165 citric acid Nutrition 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- SUZJDLRVEPUNJG-UHFFFAOYSA-K tripotassium 2,4,6-trioxido-1,3,5,2lambda5,4lambda5,6lambda5-trioxatriphosphinane 2,4,6-trioxide Chemical compound [K+].[K+].[K+].[O-]P1(=O)OP([O-])(=O)OP([O-])(=O)O1 SUZJDLRVEPUNJG-UHFFFAOYSA-K 0.000 claims description 3
- 238000010899 nucleation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 238000001704 evaporation Methods 0.000 abstract description 2
- 230000008020 evaporation Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000009471 action Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- QPLUUBGVWZCEER-UHFFFAOYSA-H tricalcium 2,4,6-trioxido-1,3,5,2lambda5,4lambda5,6lambda5-trioxatriphosphinane 2,4,6-trioxide Chemical compound [Ca++].[Ca++].[Ca++].[O-]P1(=O)OP([O-])(=O)OP([O-])(=O)O1.[O-]P1(=O)OP([O-])(=O)OP([O-])(=O)O1 QPLUUBGVWZCEER-UHFFFAOYSA-H 0.000 description 2
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a gypsum board, which comprises the following components in parts by weight: 100 parts of gypsum; 1-3 parts of additive; 0.5-2 parts of starch; 0.1-3 parts of industrial glucose; 0.1-3 parts of crystal stabilizer; 0.5-3 parts of dispersing agent; 0.01 to 0.5 portion of retarder; 50-100 parts of water. The dry state and the wet state of the seed crystal are mixed and added according to a certain proportion, which is favorable for improving initial and final setting effects, and the standard thickness can be reduced by 5; mixing and stirring: the seed crystal is added into the gypsum board raw material and mixed, the stirring time is limited to be less than 1 minute, and the excessive treatment of the gypsum board raw material can be avoided so as to maintain the optimal initial setting and final setting effects; seed crystal wet adding addition amount control: the addition amount of the wet adding of the seed crystal is controlled to be 3-4 g/square meter, the optimal performance in the forming process is ensured, the forming speed of the gypsum board is improved by 2m/min through the treatment, and the key effect of reducing the evaporation capacity is achieved while the standard thickness is reduced.
Description
Technical Field
The invention relates to the technical field of gypsum board production, in particular to a gypsum board and a seed crystal wet-adding production process thereof.
Background
Gypsum belongs to an air hardening cementing material, and is a material prepared by taking building gypsum as a main raw material. The building material has the advantages of light weight, high strength, thin thickness, convenient processing, good sound insulation, heat insulation, fire resistance and the like, and is suitable for being used as a light wall material.
The standard thickening in the process refers to the viscosity of the concrete, and the standard thickening is closely related to the processing and forming of the gypsum board;
in the prior art, the standard consistency of the gypsum board is difficult to be reduced during processing and molding preparation, so that the gypsum liquid has high fluidity, high molding difficulty and high quality, and therefore, the gypsum board and the seed crystal wet-adding production process thereof are provided.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a gypsum board and a seed crystal wet-adding production process thereof.
In order to achieve the above purpose, the present invention provides the following technical solutions: a gypsum board comprising, in parts by weight:
100 parts of gypsum; 1-3 parts of additive; 0.5-2 parts of starch; 0.1-3 parts of industrial glucose; 0.1-3 parts of crystal stabilizer; 0.5-3 parts of dispersing agent; 0.01 to 0.5 portion of retarder; 50-100 parts of water.
Preferably, the crystal stabilizer is one or more of sodium trimetaphosphate, potassium trimetaphosphate, calcium trimetaphosphate, lithium trimetaphosphate and ammonium trimetaphosphate.
Preferably, the dispersing agent is naphthalene sulfonate, and the dispersing agent naphthalene sulfonate is sodium methyl naphthalene sulfonate.
Preferably, the retarder is one or more of citric acid, sodium polyphosphate and borax.
Preferably, the foaming agent comprises 0.01 to 0.1 part by weight of foaming agent, wherein the foaming agent is one or more of partially sulfonated polybenzothiazole modified tea saponin, sodium alkyl sulfate, sodium alkyl ether sulfate, sodium alkyl benzene sulfonate and polyoxyethylene sodium alkyl sulfate.
Preferably, the modified glass fiber comprises 0.1 to 0.6 part by weight of modified glass fiber, wherein the modified glass fiber is obtained by reacting grafted partially sulfonated polybenzothiazole cellulose ether with glass fiber.
Preferably, the additive is formed by mixing dry and wet seed crystals according to a certain proportion, wherein the dry and wet seed crystals are 3%o respectively.
A seed crystal wet-adding production process of gypsum boards, comprising the following steps:
step S1: adding the additive into the gypsum raw material, and mixing and stirring for less than 1 minute;
step S2: preparing plaster of paris powder: adding phosphogypsum into a roller type rotary dryer, drying for 10-24 hours at the temperature ranging from 100 ℃ to 150 ℃, then feeding into a hot flue gas fluidized bed furnace, continuously calcining for 10-24 hours at the temperature ranging from 160 ℃ to 220 ℃, and cooling to room temperature;
step S3: adding plaster of paris, starch, industrial glucose, sodium trimetaphosphate, sodium methylnaphthalene sulfonate, citric acid, water, partially sulfonated polybenzothiazole modified tea saponin and modified glass fiber into a stirrer according to parts by weight, controlling the addition amount of wet seed crystal addition in the additive to be 3-4 g/square meter, and uniformly stirring to form slurry;
step S4: and (3) plate manufacturing: the slurry is sent into a plate forming machine to be bonded with the top and bottom surface facing papers to form a gypsum board blank, and the gypsum board blank is solidified, formed, cut, dried, sorted, cut, automatically sealed, stacked, packaged and put in storage.
Compared with the prior art, the invention has the following beneficial effects:
seed crystal dry-wet mixing: in the production process for preparing the gypsum board, the dry state and the wet state of the seed crystal are mixed and added according to a certain proportion, so that the initial setting effect and the final setting effect are improved, and the standard thickness can be reduced by 5;
mixing and stirring: the seed crystal is added into the gypsum board raw material and mixed, the stirring time is limited to be less than 1 minute, and the excessive treatment of the gypsum board raw material can be avoided so as to maintain the optimal initial setting and final setting effects;
seed crystal wet adding addition amount control: the addition amount of the wet adding of the seed crystal is controlled to be 3-4 g/square meter, the optimal performance in the forming process is ensured, the forming speed of the gypsum board is improved by 2m/min through the treatment, and the key effect of reducing the evaporation capacity is achieved while the standard thickness is reduced.
Detailed Description
All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The invention provides a technical scheme that: a gypsum board comprising, in parts by weight:
100 parts of gypsum; 1-3 parts of additive; 0.5-2 parts of starch; 0.1-3 parts of industrial glucose; 0.1-3 parts of crystal stabilizer; 0.5-3 parts of dispersing agent; 0.01 to 0.5 portion of retarder; 50-100 parts of water.
Wherein the crystal stabilizer is sodium trimetaphosphate.
Wherein the dispersing agent is naphthalene sulfonate, and the dispersing agent naphthalene sulfonate is sodium methyl naphthalene sulfonate.
Wherein the retarder is citric acid.
Wherein, the foaming agent also comprises 0.01 to 0.1 part by weight of foaming agent, wherein, the foaming agent is one or more of partially sulfonated polybenzothiazole modified tea saponin, sodium alkyl sulfate, sodium alkyl ether sulfate, sodium alkyl benzene sulfonate and polyoxyethylene alkyl sodium sulfate.
Wherein, the modified glass fiber is prepared by reacting glass fiber with grafted partially sulfonated polybenzothiazole cellulose ether, and the modified glass fiber also comprises 0.1-0.6 part by weight.
Wherein the additive is prepared by mixing dry and wet seed crystals according to a certain proportion, and the dry and wet seed crystals are 3%o respectively.
A seed crystal wet-adding production process of gypsum boards, comprising the following steps:
step S1: adding the additive into the gypsum raw material, and mixing and stirring for less than 1 minute;
step S2: preparing plaster of paris powder: adding phosphogypsum into a roller type rotary dryer, drying for 10-24 hours at the temperature ranging from 100 ℃ to 150 ℃, then feeding into a hot flue gas fluidized bed furnace, continuously calcining for 10-24 hours at the temperature ranging from 160 ℃ to 220 ℃, and cooling to room temperature;
step S3: adding plaster of paris, starch, industrial glucose, sodium trimetaphosphate, sodium methylnaphthalene sulfonate, citric acid, water, partially sulfonated polybenzothiazole modified tea saponin and modified glass fiber into a stirrer according to parts by weight, controlling the addition amount of wet seed crystal addition in the additive to be 3-4 g/square meter, and uniformly stirring to form slurry;
step S4: and (3) plate manufacturing: the slurry is sent into a plate forming machine to be bonded with the top and bottom surface facing papers to form a gypsum board blank, and the gypsum board blank is solidified, formed, cut, dried, sorted, cut, automatically sealed, stacked, packaged and put in storage.
Example two
The invention provides a technical scheme that: a gypsum board comprising, in parts by weight:
100 parts of gypsum; 1-3 parts of additive; 0.5-2 parts of starch; 0.1-3 parts of industrial glucose; 0.1-3 parts of crystal stabilizer; 0.5-3 parts of dispersing agent; 0.01 to 0.5 portion of retarder; 50-100 parts of water.
Wherein the crystal stabilizer is calcium trimetaphosphate.
Wherein the dispersing agent is naphthalene sulfonate, and the dispersing agent naphthalene sulfonate is sodium methyl naphthalene sulfonate.
Wherein the retarder is sodium polyphosphate.
Wherein, the foaming agent also comprises 0.01 to 0.1 part by weight of foaming agent, wherein, the foaming agent is one or more of partially sulfonated polybenzothiazole modified tea saponin, sodium alkyl sulfate, sodium alkyl ether sulfate, sodium alkyl benzene sulfonate and polyoxyethylene alkyl sodium sulfate.
Wherein, the modified glass fiber is prepared by reacting glass fiber with grafted partially sulfonated polybenzothiazole cellulose ether, and the modified glass fiber also comprises 0.1-0.6 part by weight.
Wherein the additive is prepared by mixing dry and wet seed crystals according to a certain proportion, and the dry and wet seed crystals are 3%o respectively.
A seed crystal wet-adding production process of gypsum boards, comprising the following steps:
step S1: adding the additive into the gypsum raw material, and mixing and stirring for less than 1 minute;
step S2: preparing plaster of paris powder: adding phosphogypsum into a roller type rotary dryer, drying for 10-24 hours at the temperature ranging from 100 ℃ to 150 ℃, then feeding into a hot flue gas fluidized bed furnace, continuously calcining for 10-24 hours at the temperature ranging from 160 ℃ to 220 ℃, and cooling to room temperature;
step S3: adding plaster of paris, starch, industrial glucose, sodium trimetaphosphate, sodium methylnaphthalene sulfonate, citric acid, water, partially sulfonated polybenzothiazole modified tea saponin and modified glass fiber into a stirrer according to parts by weight, controlling the addition amount of wet seed crystal addition in the additive to be 3-4 g/square meter, and uniformly stirring to form slurry;
step S4: and (3) plate manufacturing: the slurry is sent into a plate forming machine to be bonded with the top and bottom surface facing papers to form a gypsum board blank, and the gypsum board blank is solidified, formed, cut, dried, sorted, cut, automatically sealed, stacked, packaged and put in storage.
Example III
The invention provides a technical scheme that: a gypsum board comprising, in parts by weight:
100 parts of gypsum; 1-3 parts of additive; 0.5-2 parts of starch; 0.1-3 parts of industrial glucose; 0.1-3 parts of crystal stabilizer; 0.5-3 parts of dispersing agent; 0.01 to 0.5 portion of retarder; 50-100 parts of water.
Wherein the crystal stabilizer is sodium calcium trimetaphosphate.
Wherein the dispersing agent is naphthalene sulfonate, and the dispersing agent naphthalene sulfonate is sodium methyl naphthalene sulfonate.
Wherein, the retarder is borax.
Wherein, the foaming agent also comprises 0.01 to 0.1 part by weight of foaming agent, wherein, the foaming agent is one or more of partially sulfonated polybenzothiazole modified tea saponin, sodium alkyl sulfate, sodium alkyl ether sulfate, sodium alkyl benzene sulfonate and polyoxyethylene alkyl sodium sulfate.
Wherein, the modified glass fiber is prepared by reacting glass fiber with grafted partially sulfonated polybenzothiazole cellulose ether, and the modified glass fiber also comprises 0.1-0.6 part by weight.
Wherein, the additive is formed by mixing the dry state and the wet state of the seed crystal according to a certain proportion, and the dry state and the wet state of the seed crystal are respectively 3 percent.
A seed crystal wet-adding production process of gypsum boards, comprising the following steps:
step S1: adding the additive into the gypsum raw material, and mixing and stirring for less than 1 minute;
step S2: preparing plaster of paris powder: adding phosphogypsum into a roller type rotary dryer, drying for 10-24 hours at the temperature ranging from 100 ℃ to 150 ℃, then feeding into a hot flue gas fluidized bed furnace, continuously calcining for 10-24 hours at the temperature ranging from 160 ℃ to 220 ℃, and cooling to room temperature;
step S3: adding plaster of paris, starch, industrial glucose, sodium trimetaphosphate, sodium methylnaphthalene sulfonate, citric acid, water, partially sulfonated polybenzothiazole modified tea saponin and modified glass fiber into a stirrer according to parts by weight, controlling the addition amount of wet seed crystal addition in the additive to be 3-4 g/square meter, and uniformly stirring to form slurry;
step S4: and (3) plate manufacturing: the slurry is sent into a plate forming machine to be bonded with the top and bottom surface facing papers to form a gypsum board blank, and the gypsum board blank is solidified, formed, cut, dried, sorted, cut, automatically sealed, stacked, packaged and put in storage.
Example IV
The invention provides a technical scheme that: a gypsum board comprising, in parts by weight:
100 parts of gypsum; 1-3 parts of additive; 0.5-2 parts of starch; 0.1-3 parts of industrial glucose; 0.1-3 parts of crystal stabilizer; 0.5-3 parts of dispersing agent; 0.01 to 0.5 portion of retarder; 50-100 parts of water.
Wherein the crystal stabilizer is one or more of sodium trimetaphosphate, potassium trimetaphosphate, calcium sodium trimetaphosphate, lithium trimetaphosphate and ammonium trimetaphosphate.
Wherein the dispersing agent is naphthalene sulfonate, and the dispersing agent naphthalene sulfonate is sodium methyl naphthalene sulfonate.
Wherein, the retarder is one or more of citric acid, sodium polyphosphate and borax.
Wherein, the foaming agent also comprises 0.01 to 0.1 part by weight of foaming agent, wherein, the foaming agent is one or more of partially sulfonated polybenzothiazole modified tea saponin, sodium alkyl sulfate, sodium alkyl ether sulfate, sodium alkyl benzene sulfonate and polyoxyethylene alkyl sodium sulfate.
Wherein, the modified glass fiber is prepared by reacting glass fiber with grafted partially sulfonated polybenzothiazole cellulose ether, and the modified glass fiber also comprises 0.1-0.6 part by weight.
Wherein the additive is prepared by mixing dry and wet seed crystals according to a certain proportion, and the dry and wet seed crystals are 3%o respectively.
A gypsum board and a seed crystal wet-adding production process thereof comprise the following steps:
step S1: adding the additive into the gypsum raw material, and mixing and stirring for less than 1 minute;
step S2: preparing plaster of paris powder: adding phosphogypsum into a roller type rotary dryer, drying for 10-24 hours at the temperature ranging from 100 ℃ to 150 ℃, then feeding into a hot flue gas fluidized bed furnace, continuously calcining for 10-24 hours at the temperature ranging from 160 ℃ to 220 ℃, and cooling to room temperature;
step S3: adding plaster of paris, starch, industrial glucose, sodium trimetaphosphate, sodium methylnaphthalene sulfonate, citric acid, water, partially sulfonated polybenzothiazole modified tea saponin and modified glass fiber into a stirrer according to parts by weight, controlling the addition amount of wet seed crystal addition in the additive to be 3-4 g/square meter, and uniformly stirring to form slurry;
step S4: and (3) plate manufacturing: the slurry is sent into a plate forming machine to be bonded with the top and bottom surface facing papers to form a gypsum board blank, and the gypsum board blank is solidified, formed, cut, dried, sorted, cut, automatically sealed, stacked, packaged and put in storage.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A gypsum board, characterized by comprising, in parts by weight:
100 parts of gypsum; 1-3 parts of additive; 0.5-2 parts of starch; 0.1-3 parts of industrial glucose; 0.1-3 parts of crystal stabilizer; 0.5-3 parts of dispersing agent; 0.01 to 0.5 portion of retarder; 50-100 parts of water.
2. A gypsum board as set forth in claim 1, wherein: the crystal stabilizer is one or more of sodium trimetaphosphate, potassium trimetaphosphate, calcium sodium trimetaphosphate, lithium trimetaphosphate and ammonium trimetaphosphate.
3. A gypsum board as set forth in claim 1, wherein: the dispersing agent is naphthalene sulfonate, and the dispersing agent naphthalene sulfonate is sodium methyl naphthalene sulfonate.
4. A gypsum board as set forth in claim 1, wherein: the retarder is one or more of citric acid, sodium polyphosphate and borax.
5. A gypsum board as set forth in claim 1, wherein: the foaming agent is one or more of partially sulfonated polybenzothiazole modified tea saponin, sodium alkyl sulfate, sodium alkyl ether sulfate, sodium alkyl benzene sulfonate and polyoxyethylene alkyl sodium sulfate.
6. A gypsum board as set forth in claim 1, wherein: the modified glass fiber is prepared by reacting grafted partially sulfonated polybenzothiazole cellulose ether with glass fiber.
7. A gypsum board as set forth in claim 1, wherein: the additive is formed by mixing dry and wet seed crystals according to a certain proportion, wherein the dry and wet seed crystals are 3%o respectively.
8. A process for the wet seeding production of gypsum board according to any one of claims 1 to 8, comprising the steps of:
step S1: adding the additive into the gypsum raw material, and mixing and stirring for less than 1 minute;
step S2: preparing plaster of paris powder: adding phosphogypsum into a roller type rotary dryer, drying for 10-24 hours at the temperature of 100-150 ℃, then feeding into a hot flue gas fluidized bed furnace, continuously calcining for 10-24 hours at 160-220 ℃, and cooling to room temperature;
step S3: adding plaster of paris, starch, industrial glucose, sodium trimetaphosphate, sodium methylnaphthalene sulfonate, citric acid, water, partially sulfonated polybenzothiazole modified tea saponin and modified glass fiber into a stirrer according to parts by weight, controlling the addition amount of wet seed crystal addition in the additive to be 3-4 g/square meter, and uniformly stirring to form slurry;
step S4: and (3) plate manufacturing: the slurry is sent into a plate forming machine to be bonded with the top and bottom surface facing papers to form a gypsum board blank, and the gypsum board blank is solidified, formed, cut, dried, sorted, cut, automatically sealed, stacked, packaged and put in storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311639543.3A CN117886580A (en) | 2023-12-04 | 2023-12-04 | Gypsum board and seed crystal wet-adding production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311639543.3A CN117886580A (en) | 2023-12-04 | 2023-12-04 | Gypsum board and seed crystal wet-adding production process thereof |
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| Publication Number | Publication Date |
|---|---|
| CN117886580A true CN117886580A (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311639543.3A Pending CN117886580A (en) | 2023-12-04 | 2023-12-04 | Gypsum board and seed crystal wet-adding production process thereof |
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| Country | Link |
|---|---|
| CN (1) | CN117886580A (en) |
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2023
- 2023-12-04 CN CN202311639543.3A patent/CN117886580A/en active Pending
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