CN114961087A - Mildew-proof, damp-proof and cracking-proof gypsum board, preparation process and preparation device thereof - Google Patents
Mildew-proof, damp-proof and cracking-proof gypsum board, preparation process and preparation device thereof Download PDFInfo
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- CN114961087A CN114961087A CN202210735443.XA CN202210735443A CN114961087A CN 114961087 A CN114961087 A CN 114961087A CN 202210735443 A CN202210735443 A CN 202210735443A CN 114961087 A CN114961087 A CN 114961087A
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- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 65
- 239000010440 gypsum Substances 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 238000011049 filling Methods 0.000 claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 239000002002 slurry Substances 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 23
- 230000003449 preventive effect Effects 0.000 claims abstract description 19
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 16
- 239000003365 glass fiber Substances 0.000 claims abstract description 16
- 229920002472 Starch Polymers 0.000 claims abstract description 15
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims abstract description 15
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000004327 boric acid Substances 0.000 claims abstract description 15
- 239000004088 foaming agent Substances 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 15
- 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 abstract description 15
- 235000019698 starch Nutrition 0.000 claims abstract description 15
- 239000008107 starch Substances 0.000 claims abstract description 15
- 235000002906 tartaric acid Nutrition 0.000 claims abstract description 15
- 239000011975 tartaric acid Substances 0.000 claims abstract description 15
- 238000002156 mixing Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000011505 plaster Substances 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 9
- 238000001291 vacuum drying Methods 0.000 claims abstract description 9
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 29
- 239000011268 mixed slurry Substances 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
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- 238000012360 testing method Methods 0.000 description 17
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- 238000005070 sampling Methods 0.000 description 2
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- 229920002545 silicone oil Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
- B28B19/0092—Machines or methods for applying the material to surfaces to form a permanent layer thereon to webs, sheets or the like, e.g. of paper, cardboard
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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
- C04B28/14—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 calcium sulfate cements
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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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
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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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
-
- 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
- C04B2111/2092—Resistance against biological degradation
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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
- 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
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- 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
- C04B2111/40—Porous or lightweight materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses a mildew-proof, damp-proof and crack-proof gypsum board, a preparation process and a preparation device thereof. Also comprises the following steps: s100, mixing plaster powder, starch, a high-efficiency water reducing agent, glass fiber, a retarder, a mildew preventive, boric acid, tartaric acid, sodium trimetaphosphate, a foaming agent and water by using a mixer to form slurry; s200, placing lower paper on a mold filling shell, shaking slurry off from a discharge port to the lower paper, and filling the slurry in a shaking mode of a shaking mechanism to form a material plate; s300, placing the upper paper on a material plate, and conveying the material plate to a forming machine by using a conveying frame to form a wet plate; s400, carrying out vacuum drying on the wet board to obtain the mildew-proof, moisture-proof and crack-proof gypsum board. The device also comprises a mixer, a shaking mechanism, a mold filling shell, a discharge port, a forming machine and a conveying frame. The invention improves the aspects of the plaster formula and the mould filling solidification process, and improves the waterproof capability and the mildew-proof effect of the plaster.
Description
Technical Field
The invention relates to the technical field of gypsum boards, in particular to a mildew-proof, moisture-proof and cracking-proof gypsum board, a preparation process and a preparation device thereof.
Background
In the gypsum board production industry, the product functions of the gypsum board are increasingly diversified, the requirements on mildew resistance and moisture resistance in damp and hot areas such as coastal areas are higher, and the requirements on cracking resistance in western areas with large wind sand are higher. When the gypsum board is wetted and absorbs water, the gypsum board is easy to mildew in a long-term humid environment, so that mildew harmful to a human body is generated, the health of the human body can be affected, and the gypsum board is easy to corrode after mildewing, so that the gypsum board is cracked, and the service life of the gypsum board is shortened.
In order to reduce the water absorption rate of the gypsum board, the waterproof effect of the existing gypsum board is improved by coating silicone oil, but the silicone oil is only coated on the joint of the protective paper and the gypsum board, so that the protective paper is easy to crack, and the generated gaps still cause phenomena of mildewing and the like, which is inconvenient. And the gypsum board is often limited by the process in the process of filling the mould, so that the mould filling is not uniform, the edge is not neat, and even a gap which is easy to crack appears. In order to improve the quality of the gypsum board, the mildew-proof, moisture-proof and crack-proof gypsum board is developed, and the preparation process is improved through a preparation device.
Disclosure of Invention
The invention aims to provide a mildew-proof, damp-proof and crack-proof gypsum board, a preparation process and a preparation device thereof, and aims to solve the technical problems that the gypsum board is easy to mildew and crack and the filling of a mold is not uniform in the prior art.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
the invention provides a mildew-proof, damp-proof and crack-proof gypsum board, which comprises a board core and a protective paper;
the protective paper comprises lower paper and upper paper, and the lower paper and the upper paper are respectively wrapped on the upper surface and the lower surface of the board core and form waterproof protection on the board core;
the board core comprises the following components in parts by weight: 7000 portions of plaster powder, 20-30 portions of starch, 2-3 portions of high-efficiency water reducing agent, 20-40 portions of glass fiber, 14-70 portions of retarder, 4-20 portions of mildew preventive, 3-6 portions of boric acid, 1-3 portions of tartaric acid, 2-6 portions of sodium trimetaphosphate, 10-25 portions of foaming agent and 5000 portions of water 4000.
As a preferred aspect of the present invention, the core comprises, in parts by weight: 7500 parts of calcined gypsum powder, 25 parts of starch, 3 parts of a high-efficiency water reducing agent, 30 parts of glass fiber, 50 parts of a retarder, 12 parts of a mildew preventive, 5 parts of boric acid, 2 parts of tartaric acid, 5 parts of sodium trimetaphosphate, 18 parts of a foaming agent and 4500 parts of water.
The invention provides a preparation process for preparing the mildew-proof, damp-proof and anti-cracking gypsum board, which comprises the following steps:
s100, mixing plaster powder, starch, a high-efficiency water reducing agent, glass fiber, a retarder, a mildew preventive, boric acid, tartaric acid, sodium trimetaphosphate, a foaming agent and water by using a mixer to form slurry;
s200, placing lower paper on a mold filling shell, shaking slurry to the lower paper from a discharge port, and opening a shaking mechanism to fill the slurry in shaking to form a material plate;
s300, placing upper paper on the material plate, and conveying the material plate to a forming machine by using a conveying frame to form a wet plate;
s400, after the wet board is solidified, carrying out vacuum drying on the wet board to obtain the mildew-proof, moisture-proof and crack-proof gypsum board.
As a preferable aspect of the present invention, the specific forming process of the slurry in step S100 includes:
s101, performing first mixing on the calcined gypsum powder, starch, a high-efficiency water reducing agent, glass fiber and a retarder to obtain first mixed slurry;
s102, carrying out second mixing on the first mixed slurry, the mildew preventive, boric acid, tartaric acid and sodium trimetaphosphate to prepare second mixed slurry;
s103, carrying out third mixing on the second mixed slurry, the foaming agent and water to prepare the slurry.
The invention provides a preparation device for executing the preparation process, which comprises the following steps:
a mixer mounted on the table;
the shaking mechanism is arranged on the side edge of the mixer;
the mould filling shell is arranged on the shaking mechanism, and two side edges of the mould filling shell shake under the driving of the shaking mechanism;
the discharge port is arranged between the mixer and the mold filling shell and used for conveying the slurry from the mixer into the mold filling shell;
the forming machine is arranged on the side edge of the shaking mechanism and used for extruding the material plate;
and the conveying frame is arranged between the mold filling shell and the forming machine and drives the mold filling shell to reciprocate between the shaking mechanism and the forming machine.
As a preferable scheme of the present invention, the front end and the rear end of the mold filling housing are both provided with a clamping groove, and the shaking mechanism penetrates through the conveying frame and is sleeved with the clamping groove.
As a preferred scheme of the present invention, the shaking mechanism includes a first transmission rod sleeved in the front end of the clamping groove and a second transmission rod sleeved in the rear end of the clamping groove, lower ends of the first transmission rod and the second transmission rod penetrate through the transmission frame to be connected with a tilting rod, a reciprocating rotation motor is disposed in the middle of the tilting rod, and the reciprocating rotation motor drives two ends of the tilting rod to swing up and down.
As a preferable scheme of the invention, the reciprocating rotation motor is arranged on the workbench and connected with the workbench through a telescopic rod, and the reciprocating rotation motor is driven by the telescopic rod to move up and down.
As a preferable scheme of the invention, the conveying frame comprises an annular track and a power slider slidably arranged on the annular track through a power module, and the mold filling shell is sleeved on the power slider and driven by the power slider to reciprocate between the discharge port and the molding machine.
As a preferable scheme of the present invention, an annular gap is disposed on the annular rail, the first transmission rod and the second transmission rod penetrate through the annular gap to be connected with the mold filling housing, and the power slider moves in the annular gap.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, materials such as the mildew preventive and the high-efficiency water reducing agent are utilized, so that the water storage capacity of the gypsum board is reduced, the mildew-proof effect of the gypsum board is improved, the surface flatness and the edge flatness of a wet material of the gypsum board are improved through a shaking and mold filling process, the bonding effect between the surface protecting paper and the gypsum board is improved, the waterproof effect is further improved, and the service life is prolonged; and when the gypsum board is solidified, a vacuum solidification method is adopted, and a proper amount of glass fiber is matched for use, so that the anti-cracking effect of the gypsum board is greatly improved, and the gypsum board can be used in various environments.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
FIG. 1 is a schematic flow diagram of a process for producing a mildew-proof, moisture-proof, and crack-proof gypsum board according to the present invention;
FIG. 2 is a schematic view of a portion of the structure of the process for producing a mildew-proof, moisture-proof, and crack-proof gypsum board according to the present invention;
fig. 3 is a schematic side view of a conveying rack according to the present invention.
The reference numerals in the drawings denote the following, respectively:
1-a shaking mechanism; 2-filling the mould shell; 3-discharging port; 4-a forming machine; 5-a conveying frame; 6-a clamping groove; 7-a telescopic rod; 8-an annular gap; 9-a mixer;
101-a first transfer lever; 102-a second transmission rod; 103-raising the rod; 104-reciprocating rotary motor;
501-circular orbit; 502-power slider.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a mildew-proof, moisture-proof and crack-proof gypsum board, which comprises a board core and a protective paper.
The mask paper comprises lower paper and upper paper, and the lower paper and the upper paper are respectively wrapped on the upper surface and the lower surface of the board core and form waterproof protection for the board core.
Preferably, the face-protecting paper is a composite waterproof material.
The board core comprises the following components in parts by weight: 7000-8000 portions of plaster powder, 20-30 portions of starch, 2-3 portions of high-efficiency water reducing agent, 20-40 portions of glass fiber, 14-70 portions of retarder, 4-20 portions of mildew preventive, 3-6 portions of boric acid, 1-3 portions of tartaric acid, 2-6 portions of sodium trimetaphosphate, 10-25 portions of foaming agent and 4000-5000 portions of water.
Preferably, the water is deionized water.
The raw materials are added within the range, so that the effects of mildew resistance, moisture resistance and cracking resistance can be achieved, and preferably, in the embodiment, the board core comprises the following components in parts by weight: 7500 parts of calcined gypsum powder, 25 parts of starch, 3 parts of a high-efficiency water reducing agent, 30 parts of glass fiber, 50 parts of a retarder, 12 parts of a mildew preventive, 5 parts of boric acid, 2 parts of tartaric acid, 5 parts of sodium trimetaphosphate, 18 parts of a foaming agent and 4500 parts of water.
In the invention, the mildew preventive is used as a mildew preventive key in the formula, and the metering of the mildew preventive is optimal in multiple tests, so that a higher mildew preventive effect can be achieved, and the cost is lower.
The invention also provides a preparation process, as shown in figure 1, for preparing the mildew-proof, moisture-proof and anti-cracking gypsum board, which comprises the following steps:
s100, mixing plaster powder, starch, a high-efficiency water reducing agent, glass fiber, a retarder, a mildew preventive, boric acid, tartaric acid, sodium trimetaphosphate, a foaming agent and water by using a mixer to form slurry;
s200, placing lower paper on a mold filling shell, shaking slurry to the lower paper from a discharge port, and opening a shaking mechanism to fill the slurry in shaking to form a material plate;
s300, placing upper paper on the material plate, and conveying the material plate to a forming machine by using a conveying frame to form a wet plate;
s400, after the wet board is solidified, carrying out vacuum drying on the wet board to obtain the mildew-proof, moisture-proof and crack-proof gypsum board.
In the present invention, the specific formation process of the slurry in step S100 includes:
s101, performing first mixing on the calcined gypsum powder, starch, a high-efficiency water reducing agent, glass fiber and a retarder to obtain first mixed slurry;
s102, carrying out second mixing on the first mixed slurry, the mildew preventive, boric acid, tartaric acid and sodium trimetaphosphate to prepare second mixed slurry;
s103, carrying out third mixing on the second mixed slurry, the foaming agent and water to prepare the slurry.
As shown in fig. 2 and fig. 3, the present invention further provides a manufacturing apparatus for performing the above manufacturing process, including:
and a mixer 9 mounted on the workbench, wherein the mixer 9 is of a conventional structure and is used for mixing the materials, and details are not described herein.
And the shaking mechanism 1 is arranged on the side edge of the mixer 9 and is used for shaking the slurry flowing out of the mixer 9 to flatten the surface of the slurry.
And the mold filling shell 2 is arranged on the shaking mechanism 1, two side edges of the mold filling shell 2 shake under the driving of the shaking mechanism 1, and the shape and the size of the mold filling shell 2 can be changed and are used for limiting the shape of slurry.
And the discharge port 3 is arranged between the mixer 9 and the mold filling shell 2 and used for conveying the slurry from the mixer 9 into the mold filling shell 2.
And the forming machine 4 is arranged on the side edge of the shaking mechanism 1 and used for extruding the material plate, and the forming machine 4 is of an existing structure.
And the conveying frame 5 is arranged between the mold filling shell 2 and the molding machine 4 and drives the mold filling shell 2 to reciprocate between the shaking mechanism 1 and the molding machine 4.
The preparation of wet board divide into the ejection of compact, fill the mould, the shaping, dry, in this embodiment, fill the bottom of mould casing 2 and lay waterproof mask paper, after the ground paste in discharge gate 3 made the ground paste that fills in mould casing 2 reach appointed volume, can close discharge gate 3, transport frame 5 drives and fills mould casing 2 to make-up machine 4 department this moment, be provided with the mask paper on the make-up machine 4, upper and lower mask paper and make-up machine 4 combined action, extrude the gypsum board into wet board, the wet board gets into the vacuum drying machine, carry out aseptic vacuum drying, in order to make mould proof dampproofing crack prevention gypsum board.
Specifically, the ground paste mixes the completion back, falls into to filling mould casing 2 from discharge gate 3, fills mould casing 2 and carries out the shake of certain law under the drive of shake mechanism 1, and the swing of both sides small-amplitude promptly guarantees promptly the ground paste can't flow out from filling mould casing 2, has realized again the levelling of ground paste in filling mould casing 2 improves the roughness of gypsum board, and shake mechanism 1 and constantly shake when the ground paste flows in, can more effectively observe the thickness of gypsum board ground paste, makes its and the interior wall edge of filling mould casing 2 fully laminate, prevents that the ground paste from excessively causing the waste, and after the shake is accomplished, the height that fills mould casing 2 is greater than the thickness of material board.
The forming machine 4 is of the existing structure, has the effect of driving the forming and demoulding of the wet gypsum board, and drives the wet gypsum board after demoulding to enter the vacuum drier, the conveying frame 5 conveys the mould filling shell 2 after demoulding to the position of the shaking mechanism 1 again, opens the discharge hole 3, and fills the mould again, thereby realizing the reciprocating work.
In the process, the gypsum board slurry is shaken to form a smooth-surfaced material plate, so that the gap between the gypsum board and the mask paper can be reduced, the bonding effect is improved, the content of air is reduced, the mildew-proof and waterproof effects are further improved, and the vacuum drying is favorable for enhancing the cracking-proof capability of the gypsum board, so that the gypsum board has excellent cracking-proof performance.
In this embodiment, the front end and the rear end of the mold filling housing 2 are both provided with a clamping groove 6, and the shaking mechanism 1 penetrates through the conveying frame 5 and is sleeved with the clamping groove 6.
When the shaking mechanism 1 acts, the clamping groove 6 which is arranged on the outer side of the mold filling shell 2 is used for providing two supporting points at the lower end of the mold filling shell 2 through invagination, the shaking mechanism 1 drives the mold filling shell 2 to shake through the two supporting points, and the clamping groove 6 has no influence on the inner volume of the mold filling shell 2.
In this embodiment, shake mechanism 1 is including cup jointing at the front end first transfer line 101 in the draw-in groove 6 and cup jointing the rear end second transfer line 102 in the draw-in groove 6, first transfer line 101 with the lower extreme of second transfer line 102 passes conveying frame 5 is connected with sticks up pole 103, stick up the centre of pole 103 and be provided with reciprocal rotation motor 104, reciprocal rotation motor 104 drives stick up the both ends luffing motion of pole 103.
In an initial state, the mold filling housing 2 is arranged on the conveying frame 5, the first transmission rod 101 and the second transmission rod 102 penetrate through the conveying frame 5 to be respectively clamped with the clamping groove 6 at the front end and the clamping groove 6 at the rear end, the tail ends of the first transmission rod 101 and the second transmission rod 102 can slide up and down in the clamping groove 6, the first transmission rod 101 and the second transmission rod 102 are respectively arranged at two ends of the tilting rod 103, the reciprocating rotation motor 104 is an action motor for driving the tilting rod 103 to rotate around the rotation center in a reciprocating manner, the rotation angle and frequency can be adjusted as required, when the tilting rod 103 is driven by the reciprocating rotation motor 104 to rotate in a reciprocating manner, the first transmission rod 101 and the second transmission rod 102 move up and down correspondingly, the motion principle of the mould filling machine is the same as that of a seesaw, the first transmission rod 101 and the second transmission rod 102 realize the shaking of the mould filling shell 2 by pushing the clamping groove 6, wherein the rotation angle and frequency of the reciprocating rotation motor 104 are related to the shaking amplitude and shaking frequency of the mold filling shell 2.
Preferably, the reciprocating rotation motor 104 is arranged on the workbench and connected with the workbench through a telescopic rod 7, and the reciprocating rotation motor 104 is driven by the telescopic rod 7 to move up and down.
After shaking is completed, the reciprocating rotation motor 104 rotates to the initial position, the telescopic rod 7 contracts downwards, the first transmission rod 101 and the second transmission rod 102 are separated from the clamping groove 6, and the mold filling shell 2 can enter the molding machine 4 under the driving of the conveying frame 5. When filling the drawing of patterns behind the gypsum board shaping for wet board in the mould casing 2, perhaps become behind the dry plate drawing of patterns all can, the mould casing 2 that fills after the drawing of patterns gets back to initial position under the drive of conveying frame 5 once more, and telescopic link 7 rises and makes first dwang 101 and second dwang enter into to draw-in groove 6 in, opens discharge gate 3, shakes once more and fills the mould.
In this embodiment, the conveying frame 5 includes an annular track 501 and a power slider 502 slidably disposed on the annular track 501 through a power module, and the mold filling housing 2 is sleeved on the power slider 502 and driven by the power slider 502 to reciprocate between the discharge port 3 and the molding machine 4.
The power of the power slider 502 is closed when the shaking mechanism 1 is in position, the power slider 502 moves along with the up-and-down movement of the mold filling shell 2, and after the shaking is completed, the power slider 502 returns to the annular track 501 again and drives the mold filling shell 2 to slide on the annular track 501 under the driving of the power module.
Preferably, an annular gap 8 is formed in the annular track 501, the first transmission rod 101 and the second transmission rod 102 penetrate through the annular gap 8 to be connected with the mold filling housing 2, and the power slider 502 moves in the annular gap 8.
Example 1
A. Preparing raw materials: 7500 parts of calcined gypsum powder, 25 parts of starch, 3 parts of a high-efficiency water reducing agent, 30 parts of glass fiber, 50 parts of a retarder, 12 parts of a mildew inhibitor, 5 parts of boric acid, 2 parts of tartaric acid, 5 parts of sodium trimetaphosphate, 18 parts of a foaming agent and 4500 parts of water;
B. adding 7500 parts of calcined gypsum powder, 25 parts of starch, 3 parts of high-efficiency water reducing agent, 30 parts of glass fiber, 50 parts of retarder, 12 parts of mildew preventive, 5 parts of boric acid, 2 parts of tartaric acid, 5 parts of sodium trimetaphosphate, 18 parts of foaming agent and 4500 parts of water into a slurry preparation device, and uniformly stirring to prepare slurry;
C. the slurry preparation device is matched with the discharge port to convey slurry to the mold filling shell, the mold filling is carried out in a shaking mode under the driving of the shaking mechanism, the slurry enters the forming machine to wrap and form the protective paper after the mold filling is finished, the protective paper is wrapped and formed by the upper paper and the lower paper, the slurry enters the vacuum drying machine to wait for vacuum drying, and finally the slurry is dried.
The invention adopts different methods to respectively detect the moisture resistance, the impact resistance and the mildew resistance of the mildew-proof, moisture-proof and cracking-proof gypsum board.
And (3) moisture resistance detection:
a1, sampling: taking five plates of the embodiment 1 as a group for sampling, and longitudinally cutting a test piece of 600mm multiplied by 300mm at a position on each plate, which is more than 100mm away from the periphery;
a2, processing: the test piece is placed in an electric heating air blowing drying oven in advance, dried to constant weight (the mass change of the test piece is less than 5g in 24 h) under the temperature regulation of (40 +/-2) ° C, cooled to room temperature under the laboratory test conditions of temperature (25 +/-5) ° C and relative humidity (50 +/-5)% and then tested.
A3, measurement: the treated test piece is placed on a support of a test frame with the front face facing downwards, the center distance of the support is 580mm, then the test frame is placed in a damp deflection test box with the temperature of (32 +/-2) DEG C and the relative humidity of (90 +/-3%), the sagging deflection of the cross points of the two diagonal lines of the test piece before and after the test is measured and recorded after 48 hours, the deflection value of the damp sheet is calculated, and the deflection average value of five sheets is used as the damp deflection of the group of test pieces. To the nearest 1 mm.
Through tests, the invention can control the deflection under the damp to be below 1.2 mm.
And (3) impact resistance measurement:
sand with the fineness of 0.5mm is filled in a chassis of the impact resistance tester and is shaved by a scraping rule. The test piece treated with A3 was placed flat on the surface of sand with the test piece facing right up. And (4) enabling the steel balls to freely fall on the cross points of the two diagonal lines of the test piece from different heights, taking out the test piece, and recording the back crack condition of the test piece.
As shown in table 1, the height units are in millimeters.
TABLE 1
Mildew resistance:
the report number is: WT2020B01A01955
Through the mould proof dampproofing crack prevention gypsum board of this embodiment, preparation technology and preparation facilities thereof, on the basis of traditional handicraft, improved from several aspects of gypsum formula, paper material and mould filling solidification technology, improve the waterproof ability of gypsum, can also utilize the function of disinfecting of novel mould inhibitor to prevent that the gypsum from going mildy, go up the lower paper and used compound material further to block water the protection against the tide, cooperation vacuum solidification technology improves the porosity, has realized the protection against the tide mould and the light of gypsum board.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.
Claims (10)
1. The mildew-proof, damp-proof and crack-proof gypsum board is characterized by comprising a board core and a protective paper;
the protective paper comprises lower paper and upper paper, and the lower paper and the upper paper are respectively wrapped on the upper surface and the lower surface of the board core and form waterproof protection on the board core;
the board core comprises the following components in parts by weight: 7000-8000 portions of plaster powder, 20-30 portions of starch, 2-3 portions of high-efficiency water reducing agent, 20-40 portions of glass fiber, 14-70 portions of retarder, 4-20 portions of mildew preventive, 3-6 portions of boric acid, 1-3 portions of tartaric acid, 2-6 portions of sodium trimetaphosphate, 10-25 portions of foaming agent and 4000-5000 portions of water.
2. The mildew-resistant, moisture-proof and crack-resistant gypsum board as claimed in claim 1, wherein the core comprises, in parts by weight: 7500 parts of calcined gypsum powder, 25 parts of starch, 3 parts of a high-efficiency water reducing agent, 30 parts of glass fiber, 50 parts of a retarder, 12 parts of a mildew preventive, 5 parts of boric acid, 2 parts of tartaric acid, 5 parts of sodium trimetaphosphate, 18 parts of a foaming agent and 4500 parts of water.
3. A process for the preparation of the mouldproof, moistureproof and crack-resistant gypsum board according to claims 1-2, comprising the steps of:
s100, mixing plaster powder, starch, a high-efficiency water reducing agent, glass fiber, a retarder, a mildew preventive, boric acid, tartaric acid, sodium trimetaphosphate, a foaming agent and water by using a mixer to form slurry;
s200, placing lower paper on a mold filling shell, shaking slurry to the lower paper from a discharge port, and opening a shaking mechanism to fill the slurry in shaking to form a material plate;
s300, placing upper paper on the material plate, and conveying the material plate to a forming machine by using a conveying frame to form a wet plate;
s400, after the wet board is solidified, carrying out vacuum drying on the wet board to obtain the mildew-proof, moisture-proof and crack-proof gypsum board.
4. A production process according to claim 3, wherein the specific formation of the slurry in step S100 includes:
s101, performing first mixing on the calcined gypsum powder, starch, a high-efficiency water reducing agent, glass fiber and a retarder to obtain first mixed slurry;
s102, carrying out second mixing on the first mixed slurry, the mildew preventive, boric acid, tartaric acid and sodium trimetaphosphate to prepare second mixed slurry;
s103, carrying out third mixing on the second mixed slurry, the foaming agent and water to prepare the slurry.
5. A production apparatus for performing the production process according to claim 3, comprising:
a mixer (9) mounted on the table;
a shaking mechanism (1) arranged at the side of the mixer (9);
the mould filling shell (2) is arranged on the shaking mechanism (1), and two side edges of the mould filling shell (2) shake under the driving of the shaking mechanism (1);
a discharge port (3) which is installed between the mixer (9) and the mold filling shell (2) and conveys the slurry from the mixer (9) into the mold filling shell (2);
the forming machine (4) is arranged on the side edge of the shaking mechanism (1) and is used for extruding the material plate;
and the conveying frame (5) is arranged between the mold filling shell (2) and the forming machine (4) and drives the mold filling shell (2) to reciprocate between the shaking mechanism (1) and the forming machine (4).
6. A preparation device according to claim 5, wherein the front and rear ends of the mold filling housing (2) are provided with a clamping groove (6), and the shaking mechanism (1) passes through the transmission rack (5) and is sleeved with the clamping groove (6).
7. A preparation apparatus according to claim 6, wherein the shaking mechanism (1) comprises a first transmission rod (101) sleeved at the front end in the clamping groove (6) and a second transmission rod (102) sleeved at the rear end in the clamping groove (6), the lower ends of the first transmission rod (101) and the second transmission rod (102) penetrate through the conveying frame (5) and are connected with a tilting rod (103), a reciprocating rotation motor (104) is arranged in the middle of the tilting rod (103), and the reciprocating rotation motor (104) drives the two ends of the tilting rod (103) to swing up and down.
8. A preparation device according to claim 7, characterized in that the reciprocating motor (104) is arranged on the workbench and connected with the workbench through a telescopic rod (7), and the reciprocating motor (104) moves up and down under the driving of the telescopic rod (7).
9. A preparation apparatus as claimed in claim 8, wherein said conveying frame (5) comprises an endless track (501) and a power slide block (502) slidably disposed on said endless track (501) through a power module, and said mold-filling housing (2) is sleeved on said power slide block (502) and driven by said power slide block (502) to reciprocate between said discharging port (3) and said forming machine (4).
10. A manufacturing apparatus as claimed in claim 9, characterized in that the circular track (501) is provided with a circular notch (8), the first transmission rod (101) and the second transmission rod (102) pass through the circular notch (8) to be connected with the mold filling housing (2), and the power slider (502) moves in the circular notch (8).
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003262034A (en) * | 2002-03-07 | 2003-09-19 | Chiyoda Ute Co Ltd | Gypsum board and manufacturing method thereof |
| CN110790557A (en) * | 2019-11-12 | 2020-02-14 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of light moisture-proof and mildew-proof gypsum board |
| CN111196709A (en) * | 2018-11-19 | 2020-05-26 | 北新集团建材股份有限公司 | Waterproof, fireproof, mildewproof and high-strength glass fiber felt gypsum board and preparation method thereof |
| CN111763054A (en) * | 2020-06-02 | 2020-10-13 | 北新集团建材股份有限公司 | Preparation process of gypsum plaster board and method for detecting damp deflection |
| CN112142429A (en) * | 2020-09-14 | 2020-12-29 | 泰山石膏(涡阳)有限公司 | Single-sided moisture-resistant paper-surface gypsum board and preparation method thereof |
| CN113059652A (en) * | 2021-01-04 | 2021-07-02 | 肖光 | Can correct gypsum board production facility of mould skew |
-
2022
- 2022-06-27 CN CN202210735443.XA patent/CN114961087A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003262034A (en) * | 2002-03-07 | 2003-09-19 | Chiyoda Ute Co Ltd | Gypsum board and manufacturing method thereof |
| CN111196709A (en) * | 2018-11-19 | 2020-05-26 | 北新集团建材股份有限公司 | Waterproof, fireproof, mildewproof and high-strength glass fiber felt gypsum board and preparation method thereof |
| CN110790557A (en) * | 2019-11-12 | 2020-02-14 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of light moisture-proof and mildew-proof gypsum board |
| CN111763054A (en) * | 2020-06-02 | 2020-10-13 | 北新集团建材股份有限公司 | Preparation process of gypsum plaster board and method for detecting damp deflection |
| CN112142429A (en) * | 2020-09-14 | 2020-12-29 | 泰山石膏(涡阳)有限公司 | Single-sided moisture-resistant paper-surface gypsum board and preparation method thereof |
| CN113059652A (en) * | 2021-01-04 | 2021-07-02 | 肖光 | Can correct gypsum board production facility of mould skew |
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Address after: 314000 375 Haigang Avenue, Xitangqiao street, Haiyan County, Jiaxing City, Zhejiang Province Applicant after: Mount Taishan Gypsum (Jiaxing) Co.,Ltd. Address before: 314000 375 Haigang Avenue, Xitangqiao street, Haiyan County, Jiaxing City, Zhejiang Province Applicant before: BEIJING NEW BUILDING MATERIAL (JIAXING) CO.,LTD. |