CN1059708A - Light gypsum fibre board and manufacture method thereof - Google Patents
Light gypsum fibre board and manufacture method thereof Download PDFInfo
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- CN1059708A CN1059708A CN 91108531 CN91108531A CN1059708A CN 1059708 A CN1059708 A CN 1059708A CN 91108531 CN91108531 CN 91108531 CN 91108531 A CN91108531 A CN 91108531A CN 1059708 A CN1059708 A CN 1059708A
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Abstract
The present invention is a kind of light gypsum fibre board and manufacture method thereof, is characterized in introducing pearlstone and glass fibre in prescription, and the wet processing moulding with new adds efficient flocculant in slip, improved the slab drainage rate.With old wet processing relatively, its advantage is to adopt the moulding of slip casting roll-in method, the slip solid content can reach more than 20%, slip once can be injected in the vacuum mold to the required bed thickness of goods, again through vacuum hydro-extraction, roll-in is closely knit, is shaped to the slab of required thickness.This technology can reduce power consumption and gypsum runs off, and makes the timber intensity height, and unit weight obviously reduces, and helps transportation and installation.
Description
The present invention relates to a kind of with filamentary material enhanced plaster board.Current, plasterboard has become a large amount of New Building Materials that use in countries in the world, advanced country in the world consumes per capita at 1～2 square metre in year, and China per capita a year consumption have only 0.03 square metre, therefore, China's plasterboard industry is still waiting to greatly develop, product structure from domestic plasterboard industry, mainly contain two kinds of pouring gypsum plate and Thistle board, the pouring gypsum plate exists bending strength low, fragility is big, product size is limited by mould, defectives such as quality is wayward, be unsuitable for scale operation, though Thistle board has overcome the shortcoming of pouring gypsum plate, but need to consume a large amount of mask paper, the raw material of this mask paper is very nervous, manufacturing process is closed only, long-term dependence on import, be unfavorable for a large amount of development of Thistle board, compare with said two products, plaster board is a kind of excellent property, does not need mask paper again, the novel gypsum sheet material that raw material is easy to get, from the performance of current plaster board, no matter with the plaster board of dry method or wet production, it is big all to exist unit weight, be unfavorable for the shortcoming installed and used, moulding technique branch from plaster board has dry process and wet processing, and dry method is used for Germany at first, the advantage of this technology is that the slab water content is low, for wet processing, can save energy consumption in the product dried process, but this kind complex process equipment, once investment is big, is not suitable for China's actual conditions; Wet processing is meant that current copying of extensively adopting follow the example of or flow the slurry winding shaping process, and these two kinds of moulding process major defects are that pulp density is low, (copies and follows the example of concentration and be lower than 10%, slurry flowing process concentration is lower than 20%), water consumption is big, and the gypsum number of dropouts is big, and power consumption is many.
The objective of the invention is for satisfying the social demand of plaster board, big at the unit weight of present plaster board, and the deficiency of present dry method and wet processing existence is only located, by changing the prescription of plaster board, alleviating unit weight, and adopt the slip casting rolling forming process, to replace dry method and wet processing, simple to reach equipment, save energy consumption, make any surface finish, thickness is even, unit weight is little, the product that intensity is high.
Principal feature of the present invention: 1. be the prescription that has improved plaster board, in prescription, introduce pearlstone and glass fibre, thereby under the prerequisite that guarantees the necessary mechanical property of goods, obviously reduce its unit weight; And in prescription, add a kind of high-efficiency plant glue flocculation agent, and on technology, can improve the drainage rate of sheet material, reduced the water consumption when slip prepares, the slip solid content is reached more than 20%, reduce energy consumption and gypsum number of dropouts.2. adopted unused slip casting rolling forming process on the manufacturing plaster board technology, its advantage is slip once can be injected in the vacuum mold to the required bed thickness of goods, by scraper plate strickling, vacuum hydro-extraction, the process means that roll-in is closely knit makes it to be formed into the slab of specific thickness.
Below be formula range of the present invention and processing parameter:
1. formula range
Starting material consumption (weight)
The plaster of Paris 100
Paper pulp (solid part) 5～12
Medium-alkali glass fiber 1.8～6
Pearlstone 2～15
Flocculation agent＜0.15
Retardant 0～0.2
Water 300～500
Used paper pulp is the old newsprint tankage in the prescription, becomes certain density paper pulp through the hydrapulpter size degradation, and the medium-alkali glass fibre diameter is 8～14 μ, and length is 10～20mm; The pearlstone particle diameter is 0.16～1.5mm, and unit weight is 60～100g/M
3; Flocculation agent is the vegetable jelly flocculation agent; Retardant can be used gelatin, tartrate, citric acid etc.
2. processing parameter
1. weigh by prescription and add stirrer and stir and be made into 20～30% even gypsum fiber slip;
2. slip injects the slip casting roller pressing forming machine, wipes off with scraper plate, requires the control slurry thickness in 20～50mm scope according to products thickness;
3. carry out vacuum drawn with vacuum shuttering, vacuum tightness remains in 200～400Hg post scope, and residue moisture content reaches 70～120%(butt in the bed of material), the beginning roll-in, the pressure roller linear velocity is 1～5M/ branch, and linear pressure is 2～20Kg/M, and the slab water content requires 40～70%(butt after the roller process);
4. after the roll-in, leave standstill gypsum sets, carry out drying again.
Embodiment:
Proportioning
The title part by weight
The plaster of Paris 100
Paper pulp (solid part) 9
Medium-alkali glass fiber 3.2
Pearlstone 4
Flocculation agent＜0.05
Retardant 0.07
Water 370
Take by weighing raw material by above proportioning, earlier paper pulp and water are injected stirrer, begin to stir, add flocculation agent, retardant stirred 2 minutes, added glass fibre again, the plaster of Paris and pearlstone continue to stir 3 minutes, and the formation solid content is 24% even gypsum fiber slip; The slip of above-mentioned preparation is injected in the vacuum mold 2 through grouting port 1, vacuum mold 2 is rolled on sole plate 7 by the roller 6 that is installed in its underpart, grouting port and scraper plate 3 are motionless, uniform motion with vacuum mold, slip can be shakeout and wipes off, the control feed pulp layer is 30mm, start vacuum system the bed of material is carried out vacuum hydro-extraction, vacuum tightness is remained on 200～300mmHg post, keep vacuum tightness after 3 minutes, be about to vacuum mold and shift calender station onto from the slip casting station, make that feed pulp layer is repeatedly by roll-in on the vacuum mold, barrel velocity is the 1.5M/ branch, linear pressure 4.5Kg/M by pressure roller after the moving pressurization of the roller of slab, obtaining thickness is the thick light gypsum fibre board base of 10mm, slab was left standstill 15 minutes, and this moment, slab fully solidified, and was placed under 60 ℃ of conditions dry 10 hours, surveying its bending strength is 8.01MPa, and unit weight is 0.90g/cm
3
Other embodiment see attached list
Advantage of the present invention and effect are:
1. light gypsum fibre board and existing plaster board ratio, its unit weight obviously reduces, and is convenient to transportation and installs, and receives praises from customers;
2. make plasterboard technology relatively with dry method, process equipment is simple, and small investment is fit to China's actual conditions, compares with existing wet processing, can once inject slurry, and the production efficiency height is saved power, thereby reduced cost;
3. slab is through roller process, and surfacing is bright and clean, and presentation quality is good.
Present technique in Beijing, Qingdao implements, and forms 120,000 m2The production capacity in/year can be created about 1,560,000 yuan of the output value every year, 480,000 yuan of annual returns.
Description of drawings
Fig. 1, vacuum molding slip casting station, slip injects vacuum mold, by the situation of doctor blade.
Fig. 2, vacuum molding slip casting station, material base is by pressure roller roll-in situation.
Among the figure: 1. slip inlet, 2. movable vacuum mould, 3. fixed doctor, 4. vacuum mold water outlet, 5. fixing pressure roller 6. is installed in the wheel under the vacuum mold, 7. sole plate.
Claims (1)
1, a kind of light gypsum fibre board and manufacture method thereof, prescription comprises the plaster of Paris and fibrous material, uses the wet processing moulding, feature of the present invention is:
＜1〉formula range
Starting material consumption (weight)
The plaster of Paris 100
Paper pulp (solid part) 5～12
Medium-alkali glass fiber 1.8～6
Pearlstone 2～15
Flocculation agent＜0.15
Retardant 0～0.2
Water 300～500
＜2〉processing parameter:
Starting material are added stirrer stir and to be mixed with 20～30% even gypsum fiber slip, inject on the vacuum shuttering of slip casting roller pressing forming machine, wipe off with scraper plate, control feed pulp layer thickness is in 20～50mm scope; The vacuum tightness of vacuum shuttering remains in 200～400mmHg post scope, when residue moisture content reaches 70～120% (butts) in slab, the beginning roll-in, the pressure roller linear velocity is 1～5M/ branch, linear pressure is 2～20Kg/M, the slab water content is at 40～70% (butts) after the roller process, leaves standstill to gypsum sets to carry out drying again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108531 CN1059708A (en) | 1991-09-04 | 1991-09-04 | Light gypsum fibre board and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108531 CN1059708A (en) | 1991-09-04 | 1991-09-04 | Light gypsum fibre board and manufacture method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1059708A true CN1059708A (en) | 1992-03-25 |
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ID=4909337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91108531 Pending CN1059708A (en) | 1991-09-04 | 1991-09-04 | Light gypsum fibre board and manufacture method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1059708A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003004432A1 (en) * | 2001-07-06 | 2003-01-16 | G-P Gypsum Corporation | Fire door components and fire doors comprising the components |
| CN100420557C (en) * | 2005-09-08 | 2008-09-24 | 天津师范大学 | Production process and equipment of air-entraining decoration plate |
| CN101311461A (en) * | 2004-01-20 | 2008-11-26 | 邱则有 | Formwork component forming mold |
| CN101358484B (en) * | 2004-01-20 | 2011-04-06 | 湖南邱则有专利战略策划有限公司 | Formwork element molding mould |
| CN101307645B (en) * | 2004-01-20 | 2011-04-27 | 湖南邱则有专利战略策划有限公司 | Formwork member molding die |
| CN101186065B (en) * | 2004-01-20 | 2011-10-05 | 湖南邱则有专利战略策划有限公司 | Mould shell component shaping mould |
| CN101186057B (en) * | 2004-01-20 | 2011-10-05 | 湖南邱则有专利战略策划有限公司 | Mould shell component shaping mould |
| CN102225569A (en) * | 2011-04-07 | 2011-10-26 | 西南林业大学 | High-strength inorganic artificial board and manufacturing method thereof |
| CN101338617B (en) * | 2004-01-20 | 2012-09-12 | 湖南邱则有专利战略策划有限公司 | Formwork member molding die |
| CN105926885A (en) * | 2016-06-08 | 2016-09-07 | 孙小力 | Anion gypsum board and manufacturing method |
| CN107619209A (en) * | 2017-09-15 | 2018-01-23 | 河南工程学院 | A kind of ecological environment-friendly type sound-proof light wallboard and preparation method thereof |
-
1991
- 1991-09-04 CN CN 91108531 patent/CN1059708A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003004432A1 (en) * | 2001-07-06 | 2003-01-16 | G-P Gypsum Corporation | Fire door components and fire doors comprising the components |
| US6648965B2 (en) | 2001-07-06 | 2003-11-18 | G-P Gypsum Corporation | Fire door components and fire doors comprising the components |
| CN101311461A (en) * | 2004-01-20 | 2008-11-26 | 邱则有 | Formwork component forming mold |
| CN101358484B (en) * | 2004-01-20 | 2011-04-06 | 湖南邱则有专利战略策划有限公司 | Formwork element molding mould |
| CN101307645B (en) * | 2004-01-20 | 2011-04-27 | 湖南邱则有专利战略策划有限公司 | Formwork member molding die |
| CN101186065B (en) * | 2004-01-20 | 2011-10-05 | 湖南邱则有专利战略策划有限公司 | Mould shell component shaping mould |
| CN101186057B (en) * | 2004-01-20 | 2011-10-05 | 湖南邱则有专利战略策划有限公司 | Mould shell component shaping mould |
| CN101338617B (en) * | 2004-01-20 | 2012-09-12 | 湖南邱则有专利战略策划有限公司 | Formwork member molding die |
| CN100420557C (en) * | 2005-09-08 | 2008-09-24 | 天津师范大学 | Production process and equipment of air-entraining decoration plate |
| CN102225569A (en) * | 2011-04-07 | 2011-10-26 | 西南林业大学 | High-strength inorganic artificial board and manufacturing method thereof |
| CN105926885A (en) * | 2016-06-08 | 2016-09-07 | 孙小力 | Anion gypsum board and manufacturing method |
| CN107619209A (en) * | 2017-09-15 | 2018-01-23 | 河南工程学院 | A kind of ecological environment-friendly type sound-proof light wallboard and preparation method thereof |
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