CN100337959C - Novel architecture gypsum powder and its preparation method - Google Patents
Novel architecture gypsum powder and its preparation method Download PDFInfo
- Publication number
- CN100337959C CN100337959C CNB2005100444874A CN200510044487A CN100337959C CN 100337959 C CN100337959 C CN 100337959C CN B2005100444874 A CNB2005100444874 A CN B2005100444874A CN 200510044487 A CN200510044487 A CN 200510044487A CN 100337959 C CN100337959 C CN 100337959C
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- Prior art keywords
- plaster
- building gypsum
- gypsum powder
- gypsum
- phosphogypsum
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- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000010440 gypsum Substances 0.000 title abstract description 15
- 229910052602 gypsum Inorganic materials 0.000 title abstract description 15
- 239000000843 powder Substances 0.000 title abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000001354 calcination Methods 0.000 claims abstract description 8
- 230000032683 aging Effects 0.000 claims abstract description 5
- 239000013078 crystal Substances 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 239000011505 plaster Substances 0.000 claims description 28
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims description 27
- 239000011507 gypsum plaster Substances 0.000 claims description 26
- 150000001875 compounds Chemical class 0.000 claims description 11
- 241000132536 Cirsium Species 0.000 abstract description 17
- 239000002440 industrial waste Substances 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000000203 mixture Substances 0.000 abstract description 7
- 230000015271 coagulation Effects 0.000 abstract description 6
- 238000005345 coagulation Methods 0.000 abstract description 6
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 4
- 230000003009 desulfurizing effect Effects 0.000 abstract 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 12
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 10
- 239000002994 raw material Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000003483 aging Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000002686 phosphate fertilizer Substances 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
The present invention relates to a novel building gypsum powder and a preparation method thereof. The building gypsum powder is prepared from industrial waste materials, and is used for producing other gypsum products of thistle boards, etc. The novel building gypsum powder is prepared by mixing 50 to 90 wt% of ardealite of industrial waste material and 10 to 50 wt% of desulfurizing gypsum. Free water and part of the crystal water in the mix material are removed through baking, calcining and cooling aging, and thus, the novel building gypsum powder of the present invention can be prepared. The novel building gypsum powder can be used for producing thistle boards or other gypsum products. The novel building gypsum powder has the characteristic that after the ardealite and the desulfurizing gypsum are mixed, the pH value is adjusted; the intensity, the grain composition, the adhesive property, the flowing property, the coagulation time, etc. are improved; the production efficiency and the product quality of the thistle boards are enhanced; the whole preparation technology is simple; the industrial waste materials are fully utilized; the environments are protected; the natural gypsum resources are saved; the cost is low, etc.
Description
Technical field
The present invention relates to a kind of building gypsum plaster and preparation method thereof of being used to produce plasterings such as Thistle board that utilizes industrial waste to produce.
Background technology
Utilize industrial waste, especially phosphogypsum, desulfurized gypsum to substitute natural gypsum are compared with the plaster of paris as the raw material of producing Thistle board, have reduced production cost, have reduced taking of ploughing, and have protected physical environment, are paid close attention to by people.The two physicals of phosphogypsum and desulfurated plaster is different, and the foreign matter content height of phosphogypsum, kind are many, are acid, unstable properties; And the relative foreign matter content of desulfurated plaster is lower, kind is few, is neutral, and performance is comparatively stable.Have abroad and utilize phosphogypsum or desulfurated plaster (is to utilize phosphogypsum, Japan to utilize desulfurated plaster as Korea S), still do not have the two in conjunction with raw material as the production Thistle board as the raw material of producing Thistle board.Use separately the ardealite instead plaster of paris to produce Thistle board, the plate face can occur and plate core adhesive property is not strong, water requirement shakiness, time of coagulation long phenomenon.Use separately desulfurated plaster, because its grain composition is bad, the size distribution band is very narrow, and particle mainly concentrates between 30～60 μ m, and grating is worse than the terra alba of the plaster of paris after levigate far away, makes intensity behind the building gypsum plaster and is lower than the plaster of paris with grade; Cause its flowing property bad simultaneously, produce Thistle board with it, one side is difficult to control conveying, feeding, the metering performance of its dry powder, adds on the other hand to be easy to generate the segregation demixing phenomenon after water stirs, problems such as it is irregular to cause foaming in the plate, and plate core and mask paper bonding are not firm.
Summary of the invention
The purpose of this invention is to provide a kind of building gypsum plaster that utilizes industrial waste phosphogypsum, desulfurated plaster to produce for raw material, it can overcome the shortcoming of independent use phosphogypsum or desulfurated plaster production Thistle board; After phosphogypsum and desulfurated plaster are used in combination, on the soda acid degree, obtain adjusting, close with the plaster of paris, avoid occurring not sticking paper phenomenon; On Impurity Distribution, desulfurated plaster is few than phosphogypsum, and can remedy mutually on the grain composition, the appearance of the demixing phenomenon that prevents to emanate; Thereby improved product intensity, time of coagulation, sticking paper performance and foam performance improve, and more help producing the use of Thistle board.Building gypsum plaster of the present invention also can be used for other plastering, to substitute the plaster of paris.The present invention also provides the preparation method of this building gypsum plaster.
For achieving the above object, the technical scheme that the present invention takes is: include phosphogypsum, desulfurated plaster etc. in the building gypsum plaster of the present invention, phosphogypsum and desulfurated plaster by its weight ratio are: phosphogypsum: desulfurated plaster=50～90%: 10～50%.Novel architecture gypsum powder preparation method of the present invention is: with phosphogypsum with after desulfurated plaster mixes by its weight ratio, through 80～150 ℃ of oven dry, remove the free-water in the compound, again through 160～200 ℃ of calcinings, remove the crystal water in the compound, cooling, ageing just can be produced building gypsum plaster of the present invention then, use for producing Thistle board or other plastering.
Main component in phosphogypsum, the desulfurated plaster is CaSO
42H
2O (its CaSO
42H
2The content of O is about 90%), and adsorb a large amount of free water contents, it is acid that phosphogypsum is, and desulfurated plaster is neutral (but the coal-burning power plant is weakly alkaline at the desulfurated plaster that carries out after desulfurization is handled sometimes), these two kinds of industrial materials are mixed by a certain percentage, make the soda acid degree obtain adjusting, close with the potential of hydrogen of the plaster of paris; On grain composition, remedy mutually, can improve the intensity of finished product, shorten time of coagulation, improve uniform in foaming, improve the adhesive property of plate face and plate core, more help the use of Thistle board.In producing process, dry earlier, remove the free-water in the compound, calcine again, remove the partial crystallization water in the compound.Just can produce building gypsum plaster of the present invention, to substitute the plaster of paris.Phosphogypsum is the industrial waste of production of phosphate fertilizer, and desulfurated plaster is the industrial waste of coal-burning power plant, all is trade waste, and as reasonably not using, its stacking can take a large amount of soils, and can cause secondary pollution to surrounding environment.Therefore, the present invention utilizes phosphogypsum to mix the building gypsum plaster that the back produces with desulfurated plaster, and its potential of hydrogen obtains adjusting; Grain composition, adhesive property, flowing property, foam performance and time of coagulation etc. improve, and have improved the production efficiency and the quality product of Thistle board; Can make full use of industrial waste, turn waste into wealth, the protection environment is saved plaster of paris resource, and cost is low; Characteristics such as reparation technology is simple.
Description of drawings
Accompanying drawing is the process flow diagram of the embodiment of the invention.
Embodiment
Phosphogypsum is generally the industrial waste of production of phosphate fertilizer, and its free-water water ratio is generally 8 ~ 25%; Desulfurated plaster is generally the coal-burning power plant and handles later trade waste through desulfurization, and its free-water water ratio is generally 8 ~ 12%.With phosphogypsum and desulfurated plaster by its weight ratio be: phosphogypsum: desulfurated plaster=50～90%: 10～50% are equipped with, deliver in the mixing machine (2) by e Foerderanlage (1) and to mix, deliver to again in the roller dryer (3) and dry, bake out temperature is controlled at 80～150 ℃, remove the free water content in the compound, make that free water content is controlled at 0 ~ 5% in the compound after the oven dry; Compound after the oven dry is sent into fluidizing furnace (4) to be calcined, the incinerating temperature is controlled at 160 ~ 200 ℃, and continuous calcining is adopted in calcining, removes residual ionization water and partial crystallization water in the compound, compound after will calcining is again sent into feed bin (5) cooling, ageing, makes it qualitative; Just produce building gypsum plaster, crystal water is controlled at 5-7% (grade is that the crystal water total amount of 90% terra alba is 18.8% before the calcining) in the building gypsum plaster of producing, can be directly for producing the use of Thistle board or other plastering.
Therefore, the present invention utilizes industrial waste phosphogypsum, desulfurated plaster to be main raw material, preparation by a certain percentage mixes, drying, calcining, ageing, produce building gypsum plaster of the present invention, be used to produce Thistle board, after therefore having phosphogypsum and desulfurated plaster mixes, its potential of hydrogen obtains adjusting; Intensity, grain composition, adhesive property, flowing property and time of coagulation etc. improve, and have improved the production efficiency and the quality product of Thistle board, and whole reparation technology is simple; make full use of industrial waste; protect environment, saved plaster of paris resource, reduced production cost significantly.
Claims (2)
1, a kind of building gypsum plaster is characterized in that including phosphogypsum, desulfurated plaster, and phosphogypsum and desulfurated plaster by its weight ratio are: phosphogypsum: desulfurated plaster=50～90%: 10～50%.
2, the preparation method of the described building gypsum plaster of a kind of claim 1, it is characterized in that with desulfurated plaster being: phosphogypsum: desulfurated plaster=50～90% by its weight ratio with phosphogypsum: 10～50% mix after, through 80～150 ℃ of oven dry, remove the free-water in the compound, again through 160～200 ℃ of calcinings, remove the crystal water in the compound, cooling, ageing just can be produced building gypsum plaster then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100444874A CN100337959C (en) | 2005-08-29 | 2005-08-29 | Novel architecture gypsum powder and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100444874A CN100337959C (en) | 2005-08-29 | 2005-08-29 | Novel architecture gypsum powder and its preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1765801A CN1765801A (en) | 2006-05-03 |
| CN100337959C true CN100337959C (en) | 2007-09-19 |
Family
ID=36741949
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100444874A Active CN100337959C (en) | 2005-08-29 | 2005-08-29 | Novel architecture gypsum powder and its preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100337959C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL2036869T3 (en) * | 2006-06-29 | 2021-07-19 | Yoshino Gypsum Co., Ltd. | Methods for manufacturing a calcined gypsum and a gypsum board |
| CN101575901B (en) * | 2009-06-06 | 2011-02-09 | 泰山石膏股份有限公司 | Process for producing thistle boards from phosphogypsum, desulfurization gypsum and natural gypsum |
| CN102380903B (en) * | 2010-08-31 | 2013-08-28 | 泰山石膏股份有限公司 | Large-scale production process for paper surface gypsum boards with annual yield scale being 50 million square meters |
| CN103395817B (en) * | 2013-07-31 | 2015-01-28 | 荆门市磊鑫石膏制品有限公司 | Preparation method of high-purity anhydrous calcium sulfate |
| CN105967616A (en) * | 2016-03-29 | 2016-09-28 | 蚌埠华东石膏有限公司 | Insulation building gypsum powder with impact resistance and long life and preparation method thereof |
| CN106007429A (en) * | 2016-05-23 | 2016-10-12 | 北新集团建材股份有限公司 | Method for preparing building gypsum |
| CN107572847B (en) * | 2017-09-25 | 2020-02-07 | 昆明理工大学 | Reinforced and toughened phosphogypsum and preparation method thereof |
| CN112876110B (en) * | 2021-02-02 | 2023-01-20 | 茌平信源环保建材有限公司 | Gypsum powder production system and process |
| CN113511829B (en) * | 2021-04-23 | 2022-11-15 | 四川省生态环境科学研究院 | Method for preparing building gypsum powder from phosphogypsum |
| CN113754330A (en) * | 2021-10-08 | 2021-12-07 | 安徽立鑫新材料科技有限公司 | Processing technology for producing high-strength gypsum powder by using phosphogypsum and desulfurized gypsum product |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1203894A (en) * | 1997-09-29 | 1999-01-06 | 黄维栋 | Method for producing white hemihydrate gyp by using phophogypsum |
| CN1478751A (en) * | 2002-08-30 | 2004-03-03 | 王振海 | Method and device for making cement slow coagulating agent using chemical gypsum |
| CN1532164A (en) * | 2003-03-19 | 2004-09-29 | 铜陵化学工业集团有限公司 | Method for producing building gypsum powder using phosphrus gypsum |
-
2005
- 2005-08-29 CN CNB2005100444874A patent/CN100337959C/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1203894A (en) * | 1997-09-29 | 1999-01-06 | 黄维栋 | Method for producing white hemihydrate gyp by using phophogypsum |
| CN1478751A (en) * | 2002-08-30 | 2004-03-03 | 王振海 | Method and device for making cement slow coagulating agent using chemical gypsum |
| CN1532164A (en) * | 2003-03-19 | 2004-09-29 | 铜陵化学工业集团有限公司 | Method for producing building gypsum powder using phosphrus gypsum |
Non-Patent Citations (3)
| Title |
|---|
| 磷石膏的利用和处理 江鸿，王继徽，李传祥，上海环境科学，第18卷第4期 1999 * |
| 磷石膏综合利用 田立楠，化工进展，第21卷第1期 2002 * |
| 脱硫石膏及其综合利用探讨 冯金煌，江水，非金属矿，第23卷第6期 2000 * |
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| Publication number | Publication date |
|---|---|
| CN1765801A (en) | 2006-05-03 |
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Owner name: TAISHAN GYPSUM CO., LTD. Free format text: FORMER NAME: SHANDONG TAIHE DONGXIN CO., LTD. |
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Address after: 271026 Tai'an Daiyue District, Shandong City, province, Tai Tong Town, Shandong Taihe new East Technology Development Center Patentee after: Taishan Gypsum Co., Ltd. Address before: 271026 Tai'an Daiyue District, Shandong City, province, Tai Tong Town, Shandong Taihe new East Technology Development Center Patentee before: Shandong Taihe Dongxin Co., Ltd. |
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Address after: 271000 Shandong province Tai'an city Daiyue District Wen town Patentee after: Taishan Gypsum Co Address before: 271026 Tai'an Daiyue District, Shandong City, province, Tai Tong Town, Shandong Taihe new East Technology Development Center Patentee before: Taishan Gypsum Co., Ltd. |
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