CN115403296A - Paper-surface gypsum board coagulant and production process thereof - Google Patents
Paper-surface gypsum board coagulant and production process thereof Download PDFInfo
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- CN115403296A CN115403296A CN202211113552.4A CN202211113552A CN115403296A CN 115403296 A CN115403296 A CN 115403296A CN 202211113552 A CN202211113552 A CN 202211113552A CN 115403296 A CN115403296 A CN 115403296A
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
- C04B22/142—Sulfates
- C04B22/143—Calcium-sulfate
- C04B22/146—Calcium-sulfate other waste Ca-sulfate
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/10—Accelerators; Activators
- C04B2103/12—Set accelerators
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- 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
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Abstract
The invention relates to the technical field of gypsum board coagulant, in particular to a paper-surface gypsum board coagulant which is prepared from the following raw materials in parts by weight: 260-350 parts of carbonate, 80-130 parts of gypsum powder and 80-130 parts of high-efficiency water reducing agent, wherein the production process of the gypsum plaster board coagulant comprises a gypsum powder preparation module, a carbonate preparation module, a high-efficiency water reducing agent module, a conveying module, a mixing module and a collecting module; the invention achieves the purpose of improving the single line productivity in the production of the gypsum plaster boards by researching and adding the coagulant, improves the product quality of the gypsum plaster boards, reduces the cost by collecting and recycling the waste boards and the leftover materials of the gypsum plaster boards, screens the gypsum ash and the paper scraps of the waste boards and the leftover materials of the gypsum plaster boards, avoids the prepared coagulant from influencing the production stability of the gypsum plaster boards while recycling the waste materials, and improves the production quality.
Description
Technical Field
The invention relates to a coagulant, in particular to a paper-surface gypsum board coagulant and a production process thereof, belonging to the technical field of gypsum board coagulant production.
Background
The gypsum board is a light weight, high strength, thin thickness, convenient processing, sound and heat insulation and fire prevention, which is one of the new light board materials developed at present, the gypsum plaster board is a light board material formed by taking gypsum slurry as sandwich and paper as protective surface on two sides, the gypsum plaster board is light in texture, high strength, fire prevention, moth prevention and easy processing, the coagulant is an additive used in building mortar and building concrete, and can also be used as a processing aid for petroleum and natural gas exploitation, and is particularly suitable for the items requiring quick solidification and accelerating the turnover of the use of the mould, such as the sewer pipe and the heat insulation layer of cement products, cement prefabricated parts, cement road repair and the like, and the coagulant is usually added in the process of producing the gypsum board.
Chinese patent CN200710139236.3 discloses a gypsum plaster board, which is made from 40-50 parts of gypsum powder, 0.5-5 parts of activated carbon, 0.5-1 part of corn starch, and 0.4-0.8 part of paper pulp fiber: the weighed raw materials and water are poured into a stirrer at the same time, the raw materials and the water are fully stirred and then extruded and molded, the molded gypsum board is cut and dried, and the dried gypsum board is cut for the second time and then packaged and warehoused.
Chinese patent No. cn201910344412.X discloses a method for preparing a gypsum board accelerator, which is prepared by feeding waste material generated in the production of gypsum boards into an impact mill to be crushed, and also discloses the use of the gypsum board accelerator prepared by the method for preparing the gypsum board accelerator in gypsum boards. By adopting the preparation method of the gypsum board coagulant, waste materials are used as raw materials of the coagulant, so that the waste materials are recycled, the cost is saved, benefits are brought to factories, and the gypsum board coagulant meets the requirements of environmental protection; the volume weight and the particle size distribution of the gypsum board coagulant prepared by the impact mill are smaller, and the specific surface area is larger, so that the coagulant has a better coagulation accelerating effect to meet the production requirement, but in the using process, the waste board and the leftover materials are directly utilized, and a plurality of paper scraps are contained in the waste board or the leftover materials, so that the crushing effect of the ball mill can be influenced, the production stability of the gypsum board is further influenced, and the compressive strength of the gypsum board is even reduced.
In view of the above, a set accelerator for gypsum plasterboard and a process for producing the same are proposed to help solve the above problems.
Disclosure of Invention
The invention aims to provide a gypsum plaster board coagulant and a production process thereof, which can produce and prepare the coagulant, accelerate the coagulation efficiency of gypsum plaster boards, improve the production efficiency, screen paper scraps in waste boards or leftover materials in the production process, avoid the prepared coagulant from influencing the production stability of gypsum boards while recycling waste materials, improve the production quality and solve the problems of low coagulation efficiency of gypsum plaster boards, poor quality of the produced coagulant and high cost.
The invention achieves the aim through the following technical scheme, and the accelerator for the paper-surface gypsum board is prepared from the following raw materials in parts by weight: 260-350 parts of carbonate, 80-130 parts of gypsum powder and 80-130 parts of a high-efficiency water reducing agent.
Furthermore, the specific surface area of the gypsum powder is 12000cm < 2 >/g, the adhering water content of the gypsum powder is 17-20 wt.%, the high-efficiency water reducing agent is one of a polycarboxylic acid high-performance water reducing agent with solid content of 40% and an HSB aliphatic high-efficiency water reducing agent with solid content of 40%, and the coagulation accelerating effect of the coagulant is improved by controlling the specific surface area of the gypsum powder and the adhering water content of the gypsum powder.
The utility model provides a thistle board coagulant production technology, includes gypsum powder preparation module, carbonate preparation module, high efficiency water reducing agent module, carries module, compounding module and collection module, specifically includes:
s1, preparing waste boards and leftover materials of the paper-surface gypsum board into gypsum powder through a gypsum powder preparation module for later use;
s2, preparing a carbonate raw material into required carbonate through a carbonate preparation module for later use;
s3, weighing a required high efficiency water reducing agent for later use through a high efficiency water reducing agent module;
s4, conveying the prepared gypsum powder, carbonate and the high-efficiency water reducing agent into a mixing module through a conveying module;
s5, uniformly mixing gypsum powder, carbonate and a high-efficiency water reducing agent through a mixing module;
and S6, collecting the coagulant prepared in the mixing module through a collecting module.
Further, gypsum powder preparation module includes gypsum board waste residue collection module, leading-in module, separation module and processing module, specifically includes:
s11, collecting and placing waste boards and leftover materials of the gypsum plasterboard through a gypsum board waste residue collecting module;
s12, guiding the collected waste gypsum boards and leftover materials of the paper-surface gypsum boards into a separation module through a guiding module;
s13, separating gypsum ash and paper scraps in the paper-faced gypsum board waste board and the leftover materials through a separation module;
s14, gypsum powder required by treatment of the gypsum ash is obtained through the treatment module, the gypsum powder is conveyed through the conveying module, and screening work is completed through cooperation and convenient use of the gypsum board waste residue collection module, the introduction module, the separation module and the treatment module.
Further, the separation operation of step S13 specifically includes:
n1, adding waste gypsum plasterboard boards and leftover materials into a vibrating screen;
n2, screening gypsum ash and paper scraps of the paper-faced gypsum board waste board and the leftover materials through a vibrating screen;
n3, the separated gypsum ash falls into a gypsum ash collecting box through an output end;
n4, the wastepaper of separating fall into the wastepaper collecting box through another output end in, through screening the gypsum ash and the wastepaper of thistle board wasteboard and leftover bits, avoid the coagulant of preparation to influence the stability of gypsum board production.
Further, the processing module specifically includes that the gypsum grinds powder module, stoving module, detection module and fine grinding module in advance, and the processing work of step S14 specifically includes:
v1, pumping the gypsum ash in the gypsum ash collecting box to a gypsum pre-grinding module through an air pump;
v2, guiding gypsum ash in the gypsum pre-grinding module into a drying module for drying;
v3, detecting the dried gypsum ash through a detection module, detecting whether the crystal water of the dried gypsum is within the range of 17% -20%, if not, introducing the crystal water into the drying module again for processing, and if so, introducing the gypsum ash into a fine grinding module;
v4, performing fine grinding work through a ball mill in the fine grinding module, and adding a proper amount of grinding aid in the ball milling operation, wherein the addition amount of the grinding aid is 5-25 wt% of the addition amount of the gypsum ash raw material;
v5, introducing the gypsum powder with the accurately ground specific surface area of 12000cm & lt 2 & gt/g into a conveying module for conveying, drying and grinding gypsum ash, controlling the crystal water ratio of the gypsum powder, and improving the production quality and the coagulation accelerating effect of the coagulation accelerator.
Further, the carbonate preparation module comprises a weighing module, a drying module and a grinding module, and the step S2 specifically comprises:
s21, weighing the carbonate raw material with the required weight through a weighing module, and adding the carbonate raw material into a drying module;
s22, drying the carbonate raw material through a drying module;
s23, grinding the dried carbonate through the grinding module to obtain carbonate fine powder, conveying the carbonate fine powder through the conveying module, and improving the production quality and the coagulation accelerating effect of the coagulation accelerator by drying and grinding the carbonate.
Further, the conveying work in the step S4 is specifically to convey all materials through a screw conveyer, the mixing work in the step S5 is specifically to carry out mixing work through a mixer, the rotating speed of a mixer stirrer in the mixing work is 200-300 r/min and fully stirs for 8-12 min, so that all materials are evenly stirred, the raw materials are conveniently conveyed through the screw conveyer, the working cost is reduced, and a coagulant is conveniently prepared through the mixer.
The invention has the technical effects and advantages that:
the invention achieves the purpose of improving the single line productivity in the production of the gypsum plaster boards by researching and adding the coagulant, improves the product quality of the gypsum plaster boards, reduces the cost by collecting and recycling the waste boards and the leftover materials of the gypsum plaster boards, screens the gypsum ash and the paper scraps of the waste boards and the leftover materials of the gypsum plaster boards, avoids the prepared coagulant from influencing the production stability of the gypsum plaster boards while recycling the waste materials, and improves the production quality.
Drawings
FIG. 1 is a schematic diagram of the basic process of the present invention;
FIG. 2 is a schematic view of a basic flow of a gypsum powder production module according to the present invention;
FIG. 3 is a schematic diagram of a basic process flow of a processing module according to the present invention;
FIG. 4 is a schematic diagram of a basic flow diagram of a carbonate production module according to the present invention;
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-4, a set accelerator for gypsum plasterboard is prepared from the following raw materials in parts by weight: 260-350 parts of carbonate, 80-130 parts of gypsum powder and 80-130 parts of a high-efficiency water reducing agent.
The specific surface area of the gypsum powder is 12000cm < 2 >/g, the attached water content of the gypsum powder is 17wt.% to 20wt.%, and the high-efficiency water reducing agent is one of 40% of polycarboxylic acid high-performance water reducing agent and 40% of HSB aliphatic high-efficiency water reducing agent, so that the specific surface area of the gypsum powder is 12000cm < 2 >/g and is larger, and the coagulation accelerator has a better coagulation accelerating effect.
Referring to fig. 1-4, a process for producing a set accelerator for gypsum plasterboards includes a gypsum powder preparation module, a carbonate preparation module, a high efficiency water reducing agent module, a delivery module, a mixing module, and a collection module, and specifically includes:
s1, preparing waste boards and leftover materials of the paper-surface gypsum boards into gypsum powder through a gypsum powder preparation module for later use;
s2, preparing a carbonate raw material into required carbonate through a carbonate preparation module for later use;
s3, weighing the required high-efficiency water reducing agent through a high-efficiency water reducing agent module for later use;
s4, conveying the prepared gypsum powder, carbonate and the high-efficiency water reducing agent into a mixing module through a conveying module;
s5, uniformly mixing gypsum powder, carbonate and a high-efficiency water reducing agent through a mixing module;
and S6, collecting the coagulant prepared in the mixing module through a collecting module.
The gypsum powder preparation module includes gypsum board waste residue collection module, leading-in module, separation module and processing module, specifically includes:
s11, collecting and placing waste boards and leftover materials of the gypsum plasterboard through a gypsum board waste residue collecting module;
s12, guiding the collected waste gypsum boards and leftover materials of the paper-surface gypsum boards into a separation module through a guiding module;
s13, separating gypsum ash and paper scraps in the waste paper-surface gypsum board and the leftover materials through a separation module;
s14, treating the gypsum ash through the treatment module to obtain required gypsum powder, conveying the gypsum powder through the conveying module,
the separation work of step S13 specifically includes:
n1, adding waste gypsum plasterboard boards and leftover materials into a vibrating screen;
n2, screening gypsum ash and paper scraps of the paper-faced gypsum board waste board and the leftover materials through a vibrating screen;
n3, the separated gypsum ash falls into a gypsum ash collecting box through an output end;
n4, in the wastepaper collecting box is fallen to the wastepaper through another output to the wastepaper of separation, collect through the sweeps and the leftover bits to the thistle board and recycle, reduce cost sieves the gypsum ash and the wastepaper of gypsum board sweeps and leftover bits simultaneously, avoids the coagulant of preparation to influence the stability of gypsum board production when recycling waste material, improves production quality.
The processing module specifically includes that the gypsum grinds powder module in advance, stoving module, detection module and accurate grinding module, and step S14' S processing work specifically includes:
v1, pumping the gypsum ash in the gypsum ash collecting box to a gypsum pre-grinding module through an air pump;
v2, guiding gypsum ash in the gypsum pre-grinding module into a drying module for drying;
v3, detecting the dried gypsum ash through a detection module, detecting whether the crystal water of the dried gypsum is within the range of 17% -20%, if not, introducing the crystal water into the drying module again for processing, and if so, introducing the gypsum ash into a fine grinding module;
v4, performing fine grinding work through a ball mill in the fine grinding module, and adding a proper amount of grinding aid in the ball milling operation, wherein the addition amount of the grinding aid is 5-25 wt% of the addition amount of the gypsum ash raw material;
v5, introducing the gypsum powder with the specific surface area of 12000cm2/g after fine grinding into a conveying module for conveying,
the carbonate preparation module comprises a weighing module, a drying module and a grinding module, and the step S2 specifically comprises the following steps:
s21, weighing the carbonate raw material with the required weight through a weighing module, and adding the carbonate raw material into a drying module;
s22, drying the carbonate raw material through a drying module;
s23, grinding the dried carbonate through a grinding module to obtain carbonate fine powder, conveying the carbonate fine powder through a conveying module,
the conveying work in the step S4 is specifically to convey all materials through a screw conveyor, the mixing work in the step S5 is specifically to perform mixing work through a mixer, the rotating speed of a mixer stirrer in the mixing work is 200-300 r/min, the materials are fully stirred for 8-12 min, the materials are uniformly stirred, the purpose of improving the single-line production capacity of the gypsum plaster board production is achieved by researching and adding a coagulant, and meanwhile, the quality of the gypsum plaster board product is improved.
Example one
The coagulant for the paper-surface gypsum board is prepared from the following raw materials in parts by weight: 260 parts of carbonate, 80 parts of gypsum powder and 80 parts of a high-efficiency water reducing agent, wherein the specific surface area of the gypsum powder is 12000cm & lt 2 & gt/g, the attached water content of the gypsum powder is 17wt.%, and the high-efficiency water reducing agent is a polycarboxylic acid high-performance water reducing agent with the solid content of 40%.
The production process of the gypsum plaster board coagulant comprises the following steps of collecting and placing waste boards and leftover materials of gypsum plaster boards through a gypsum board waste residue collecting module, adding the collected waste boards and leftover materials of the gypsum plaster boards into a vibrating screen through a guiding-in module, screening gypsum ash and paper scraps of the waste boards and the leftover materials of the gypsum plaster boards through the vibrating screen, respectively collecting the gypsum ash and the paper scraps through a gypsum ash collecting box and a paper scrap collecting box, pumping the gypsum ash in the gypsum ash collecting box into a gypsum pre-grinding module through an air pump, adding the gypsum ash into a drying module for drying to obtain gypsum powder with 17% of crystal water, then adding the gypsum powder into a ball mill for fine grinding, adding a grinding aid with the amount of 5wt.% of the gypsum ash raw material to obtain the gypsum powder with the specific surface area of 12000cm & lt 2 & gt/g, weighing the gypsum powder by a weighing module to obtain a carbonate raw material with the required weight, adding the carbonate raw material into the drying module for drying, and stirring the gypsum powder with the carbonate fine powder and the carbonate raw material in a mixer with the weight of 40% of a first mixer, and stirring fine powder with the high carbonate content of a second carbonate material in a first mixer, and stirring speed of a second mixer, and stirring fine powder with the first stirring speed.
Example two
The paper-faced gypsum board coagulant is prepared from the following raw materials in parts by weight: 260 parts of carbonate, 105 parts of gypsum powder and 80 parts of high-efficiency water reducing agent, wherein the specific surface area of the gypsum powder is 10000cm & lt 2 & gt/g, the attached water content of the gypsum powder is 17wt.%, and the high-efficiency water reducing agent is a polycarboxylic acid high-performance water reducing agent with the solid content of 40%.
The production process of the gypsum plaster board coagulant comprises the following steps of collecting and placing waste boards and leftover materials of gypsum plaster boards through a gypsum board waste residue collecting module, adding the collected waste boards and leftover materials of the gypsum plaster boards into a vibrating screen through a guiding module, screening gypsum ash and paper scraps of the waste boards and the leftover materials of the gypsum plaster boards through the vibrating screen, respectively collecting the gypsum ash and the paper scraps through a gypsum ash collecting box and a paper scrap collecting box, pumping the gypsum ash in the gypsum ash collecting box into a gypsum pre-grinding module through an air pump, adding the gypsum ash into a drying module for drying to obtain gypsum powder with 17% of crystal water, then adding the gypsum powder into a ball mill for fine grinding, adding a grinding aid with the addition amount of 10wt.% of the gypsum ash raw material to obtain the gypsum powder with the specific surface area of 10000cm & lt 2 & gt/g, weighing a carbonate raw material with the required weight through a weighing module, adding the carbonate raw material into the drying module for drying, grinding at the drying temperature of 50 ℃ for 95min, grinding the dried carbonate fine powder through the grinding module, weighing the carbonate fine powder in the gypsum plaster boards, and stirring the gypsum powder with the weight of 40% of the mixer, and conveying the fine powder into a screw mixer at a stirring speed of 200% of a mixer to obtain the gypsum powder with the stirring fine powder.
EXAMPLE III
The coagulant for the paper-surface gypsum board is prepared from the following raw materials in parts by weight: 260 parts of carbonate, 130 parts of gypsum powder and 80 parts of high-efficiency water reducing agent, wherein the specific surface area of the gypsum powder is 12000cm & lt 2 & gt/g, the attached water content of the gypsum powder is 20wt.%, and the high-efficiency water reducing agent is a polycarboxylic acid high-performance water reducing agent with the solid content of 40%.
The production process of the gypsum plaster board coagulant comprises the following steps of collecting and placing waste boards and leftover materials of gypsum plaster boards through a gypsum board waste residue collecting module, adding the collected waste boards and leftover materials of the gypsum plaster boards into a vibrating screen through a guiding-in module, screening gypsum ash and paper scraps of the waste boards and the leftover materials of the gypsum plaster boards through the vibrating screen, respectively collecting the gypsum ash and the paper scraps through a gypsum ash collecting box and a paper scrap collecting box, pumping the gypsum ash in the gypsum ash collecting box into a gypsum pre-grinding module through an air pump, adding the gypsum ash into a drying module for drying to obtain gypsum powder with 20% of crystal water, then adding the gypsum powder into a ball mill for fine grinding, adding a grinding aid with the amount of 5wt.% of the gypsum ash raw material to obtain the gypsum powder with the specific surface area of 12000cm & lt 2 & gt/g, weighing the gypsum powder by a weighing module to obtain a carbonate raw material with the required weight, adding the carbonate raw material into the drying module for drying, and stirring the gypsum powder with the carbonate fine powder and the carbonate raw material in the mixer with the weight of 40% of a first mixer, and stirring fine powder with the mixing speed of a mixer being uniform as a second mixer, and stirring speed of a calcium carbonate material.
According to the coagulant used in the first embodiment, the second embodiment and the third embodiment, if the number of the embodiments is small, a plurality of groups can be made, the coagulation rate of the gypsum surface on the paper surface is observed, the correlation between the coagulation rate and the specific surface area of the gypsum powder is the largest, the coagulant with the fastest coagulation rate is obtained, then the coagulant is prepared according to the group of data, the aim of improving the single-line productivity is fulfilled by development and addition, the quality of the gypsum plaster product is improved, the single-line speed of the gypsum plaster is improved by 15m/min after the development and addition, the consumption of coal and electricity is greatly reduced, and compared with the same period, the single-line consumption of coal is reduced by 0.13 kg/square meter, the single-line consumption of electricity is reduced by 0.03 degree/square meter, the cost is reduced, and the efficiency is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A set accelerator for gypsum plasterboards, which is characterized in that: the feed is prepared from the following raw materials in parts by weight: 260-350 parts of carbonate, 80-130 parts of gypsum powder and 80-130 parts of high-efficiency water reducing agent.
2. A paper-faced gypsum board set accelerator as claimed in claim 1, wherein: the specific surface area of the gypsum powder is 12000cm < 2 >/g, the attached water content of the gypsum powder is 17-20 wt.%, and the high-efficiency water reducing agent is one of a polycarboxylic acid high-performance water reducing agent with solid content of 40% and an HSB aliphatic high-efficiency water reducing agent with solid content of 40%.
3. The utility model provides a thistle board coagulant production technology, includes gypsum powder preparation module, carbonate preparation module, high efficiency water reducing agent module, transport module, compounding module and collection module, its characterized in that: the method specifically comprises the following steps:
s1, preparing waste boards and leftover materials of the paper-surface gypsum board into gypsum powder through a gypsum powder preparation module for later use;
s2, preparing the carbonate raw material into required carbonate through a carbonate preparation module for later use;
s3, weighing the required high-efficiency water reducing agent through a high-efficiency water reducing agent module for later use;
s4, conveying the prepared gypsum powder, carbonate and the high-efficiency water reducing agent into a mixing module through a conveying module;
s5, uniformly mixing gypsum powder, carbonate and a high-efficiency water reducing agent through a mixing module;
and S6, collecting the coagulant prepared in the mixing module through a collecting module.
4. A process for producing set accelerator for paper-faced gypsum board according to claim 3, wherein: the gypsum powder preparation module includes gypsum board waste residue collection module, leading-in module, separation module and processing module, specifically includes:
s11, collecting and placing waste boards and leftover materials of the gypsum plasterboard through a gypsum plasterboard waste residue collecting module;
s12, guiding the collected waste gypsum boards and leftover materials of the paper-surface gypsum boards into a separation module through a guiding module;
s13, separating gypsum ash and paper scraps in the paper-faced gypsum board waste board and the leftover materials through a separation module;
and S14, treating the gypsum ash through the treatment module to obtain required gypsum powder, and conveying the gypsum powder through the conveying module.
5. The process for producing set accelerator for gypsum plasterboards according to claim 4, wherein: the separation work of step S13 specifically includes:
n1, adding waste gypsum plasterboard boards and leftover materials into a vibrating screen;
n2, screening gypsum ash and paper scraps of the paper-faced gypsum board waste board and the leftover materials through a vibrating screen;
n3, the separated gypsum ash falls into a gypsum ash collecting box through an output end;
n4, the separated paper scraps fall into the paper scrap collecting box through the other output end.
6. The process for producing a set accelerator for paper-faced gypsum boards according to claim 5, wherein the treatment module comprises a pre-grinding module for gypsum, a drying module, a detection module and a fine grinding module, and the process comprises: the processing work of step S14 specifically includes:
v1, pumping gypsum ash in the gypsum ash collecting box to a gypsum pre-grinding module through an air pump;
v2, guiding gypsum ash in the gypsum pre-grinding module into a drying module for drying;
v3, detecting the dried gypsum ash through a detection module, detecting whether the crystal water of the dried gypsum is within the range of 17% -20%, if not, introducing the crystal water into the drying module again for processing, and if so, introducing the gypsum ash into a fine grinding module;
v4, performing fine grinding work through a ball mill in the fine grinding module, and adding a proper amount of grinding aid in the ball milling operation, wherein the adding amount of the grinding aid is 5-25 wt% of the adding amount of the gypsum ash raw material;
v5, introducing the gypsum powder with the specific surface area of 12000cm2/g after fine grinding into a conveying module for conveying.
7. A process for producing a set accelerator for gypsum plasterboards according to claim 3, the carbonate preparation module comprising a weighing module, a drying module and a grinding module, characterized in that: the step S2 specifically includes:
s21, weighing the carbonate raw material with the required weight through a weighing module, and adding the carbonate raw material into a drying module;
s22, drying the carbonate raw material through a drying module;
s23, grinding the dried carbonate through a grinding module to obtain carbonate fine powder, and conveying the carbonate fine powder through a conveying module.
8. A process for producing set accelerator for paper-faced gypsum board according to claim 3, wherein: the conveying work in the step S4 is specifically to convey all the materials through a screw conveyor, the mixing work in the step S5 is specifically to perform mixing work through a mixer, the rotating speed of a mixer stirrer in the mixing work is 200-300 r/min, and the materials are fully stirred for 8-12 min, so that all the materials are uniformly stirred.
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