CN102584049B - Alpha-type hemihydrate gypsum reaction device - Google Patents
Alpha-type hemihydrate gypsum reaction device Download PDFInfo
- Publication number
- CN102584049B CN102584049B CN 201110411870 CN201110411870A CN102584049B CN 102584049 B CN102584049 B CN 102584049B CN 201110411870 CN201110411870 CN 201110411870 CN 201110411870 A CN201110411870 A CN 201110411870A CN 102584049 B CN102584049 B CN 102584049B
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- Prior art keywords
- reactor body
- hot water
- alpha
- hydrated gypsum
- control valve
- Prior art date
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Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 23
- 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 title abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims abstract description 11
- 229910052602 gypsum Inorganic materials 0.000 claims description 21
- 239000010440 gypsum Substances 0.000 claims description 21
- 238000011084 recovery Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 14
- 230000008676 import Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 238000013022 venting Methods 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000004064 recycling Methods 0.000 abstract 4
- 238000004134 energy conservation Methods 0.000 abstract 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 239000002699 waste material Substances 0.000 description 3
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000011507 gypsum plaster Substances 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 206010011469 Crying Diseases 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000011074 autoclave method Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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Abstract
The invention relates to an alpha-type hemihydrate gypsum reaction device. The alpha-type hemihydrate gypsum reaction device comprises a reaction kettle body, a stirring device I, a shaft sealing device I and a reaction kettle support, wherein a hot water recycling tank and negative pressure equipment are arranged above the reaction kettle body; a water vapor inlet and an exhaust port are formed at the top of the hot water recycling tank; the exhaust port is connected with a control valve and the negative pressure equipment respectively through pipelines; a water outlet is formed at the bottom of the hot water recycling tank; the water outlet is connected with the control valve and a water inlet of the reaction kettle respectively through pipelines; a water vapor exhaust port is formed at the top of the reaction kettle body; a drainage port is formed on the side wall of the reaction kettle body; and the water vapor exhaust port and the drainage port are connected with the control valve and the water vapor inlet of the hot water recycling tank respectively through pipelines. The alpha-type hemihydrate gypsum reaction device has a simple structure and is convenient to operate. The alpha-type hemihydrate gypsum produced by the equipment can reduce production cost, improve production efficiency and realize energy conservation and emission reduction.
Description
Technical field
The present invention relates to a kind of reaction unit, especially the alpha semi-hydrated gypsum reaction unit of the industrial waste gypsums such as the desulfurated plaster in recycle fuel-burning power plant, the plaster of paris, phosphogypsum, citric acid gypsum, fluorgypsum.
Background technology
At present, produce alpha semi-hydrated gypsum, adopt wider processing method to have two kinds both at home and abroad, a kind of crying " autoclave method " used block raw material, and equipment is autoclave; Another kind of cry " hydrothermal method " used dusty raw materials, the reactor that equipment stirs for band.The reactor that existing band stirs, because there is defective in structure, can not complete separately the whole technical process of producing alpha semi-hydrated gypsum, therefore, need set up in addition the production that dehydration equipment and drying plant etc. are completed alpha semi-hydrated gypsum, thereby greatly improved production cost and operation easier, and production efficiency is also lower.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of whole production alpha semi-hydrated gypsum technical process that can be used for completing, the alpha semi-hydrated gypsum reaction unit that can reduce production costs and enhance productivity.
The technical solution adopted for the present invention to solve the technical problems is: a kind of alpha semi-hydrated gypsum reaction unit comprises reactor body, whipping appts I, shaft sealing device I and reactor bearing; The top of described reactor body is provided with feeding mouth and water-in, and the sidewall of described reactor body is provided with manhole and heating semicanal, and the bottom of described reactor body is provided with heating jacket and discharge port; The top of described reactor is provided with Recovery of the hot water tank and negative pressure equipment, the top of described Recovery of the hot water tank is provided with steam import and venting port, described venting port is connected with negative pressure equipment by pipeline and control valve, the bottom of described Recovery of the hot water tank is provided with water outlet, and described water outlet is connected with the water-in of reactor by pipeline and control valve; The top of described reactor body also is provided with steam and effluxes mouth, and the sidewall of described reactor body is provided with water port, and described steam effluxes mouth and is connected with the steam import of Recovery of the hot water tank by pipeline and control valve respectively with water port.
Further, the top of described reactor body also is provided with the heating steam import.
Further, described Recovery of the hot water tank also is provided with whipping appts II, shaft sealing device II, semicanal and chuck.
Further, described whipping appts I comprises unit head, unit head frame, stir shaft and anchor formula paddle or screw mixing leaf, described unit head mainly is made of electric motor and step-down gear, the corresponding position of described stir shaft bottom and discharge port also is provided with material handling spiral, and the structure of described whipping appts II is identical with the structure of whipping appts I.
Further, described shaft sealing device I and shaft sealing device II all can adopt packing seal, mechanical seal or magnetic seal.
Further, the feeding mouth of described reactor is connected with former hopper by pipeline and control valve.
Further, described negative pressure equipment can be Roots vaccum pump, negative-pressure air fan, centrifugal blower or vacuum pump.
The present invention effluxes mouth, water port by set up steam on the reactor body, and set up with steam efflux mouthful, water port the Recovery of the hot water tank that is connected and the negative pressure equipment that is connected with the Recovery of the hot water tank, in conjunction with heating semicanal and heating jacket, not only can complete preferably dehydration and dry process in reactor, and can reclaim preferably hot water, recycle; Further, by setting up the heating steam import, produce alpha semi-hydrated gypsum at the desulfurated plaster with the fuel-burning power plant, can utilize the waste hot steam after generating electricity in the fuel-burning power plant, thereby realize save energy, and externally pollution-free, can improve environmental-protecting performance; In addition, by setting up material handling spiral, not only can prevent the feed blocking discharge port, but also be conducive to the conveying of material.
In sum, the present invention is simple in structure, and is easy to operate; Utilize the present invention to produce alpha semi-hydrated gypsum, can reduce production costs, enhance productivity, improve product quality and realize utilization of waste material, energy-saving and emission-reduction; The reusable edible plaster of paris of the present invention, phosphogypsum, other industrial waste gypsums such as citric acid gypsum, fluorgypsum are produced alpha semi-hydrated gypsum, wide accommodation.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
With reference to accompanying drawing, the present embodiment comprises reactor body 1, whipping appts I 2, shaft sealing device I 3 and reactor bearing 4; The top of described reactor body 1 is provided with feeding mouth 1-1 and water-in 1-2, and the sidewall of described reactor body is provided with manhole 1-3 and heating semicanal 5, and the bottom of described reactor body 1 is provided with heating jacket 6 and discharge port 1-4; The top of described reactor body 1 is provided with Recovery of the hot water tank 7 and negative pressure equipment 8, the top of described Recovery of the hot water tank 7 is provided with steam import 7-1 and venting port 7-2, described venting port 7-2 is connected with negative pressure equipment 8 by pipeline and control valve, the bottom of described Recovery of the hot water tank 7 is provided with water outlet 7-3, and described water outlet 7-3 is connected with the water-in 1-2 of reactor by pipeline and control valve; The top of described reactor body 1 also is provided with steam and effluxes a mouthful 1-5, the sidewall of described reactor body is provided with water port I 1-6 and water port II 1-7, and described steam effluxes a mouthful 1-5, water port I 1-6 and is connected with the steam import 7-1 of Recovery of the hot water tank 7 by pipeline and control valve respectively with water port II 1-7.
The top of described reactor body 1 also is provided with heating steam import 1-8, is conducive to the waste hot steam after the generating of recycle fuel-burning power plant.Certainly, also can directly utilize thermal oil to heat by heating semicanal 5 and heating jacket 6.
Described Recovery of the hot water tank 7 also is provided with whipping appts II, shaft sealing device II, semicanal and chuck.
Described whipping appts I 2 comprises unit head, unit head frame, stir shaft and anchor formula paddle, described unit head mainly is made of electric motor and step-down gear, the corresponding position of described stir shaft bottom and discharge port also is provided with material handling spiral 9, and the structure of described whipping appts II is identical with the structure of whipping appts I.
Described shaft sealing device I 3 and shaft sealing device II all adopt packing seal.Certainly, also can adopt the sealing of other form, as mechanical seal or magnetic seal etc.
The feeding mouth 1-1 of described reactor body 1 is connected with former hopper by pipeline and control valve.
Described negative pressure equipment 8 is Roots vaccum pump.Certainly also can adopt other negative pressure equipment, as negative-pressure air fan, centrifugal blower or vacuum pump etc.
Claims (8)
1. alpha semi-hydrated gypsum reaction unit, comprise the reactor body, the whipping appts I, shaft sealing device I and reactor bearing, the top of described reactor body is provided with feeding mouth and water-in, the sidewall of described reactor body is provided with manhole and heating semicanal, the bottom of described reactor body is provided with heating jacket and discharge port, it is characterized in that: the top of described reactor body is provided with Recovery of the hot water tank and negative pressure equipment, the top of described Recovery of the hot water tank is provided with steam import and venting port, described venting port is connected with negative pressure equipment by pipeline and control valve, the bottom of described Recovery of the hot water tank is provided with water outlet, described water outlet is connected with the water-in of reactor by pipeline and control valve, the top of described reactor body also is provided with steam and effluxes mouth, and the sidewall of described reactor body is provided with water port, and described steam effluxes mouth and is connected with the steam import of Recovery of the hot water tank by pipeline and control valve respectively with water port.
2. alpha semi-hydrated gypsum reaction unit according to claim 1, it is characterized in that: the top of described reactor body also is provided with the heating steam import.
3. alpha semi-hydrated gypsum reaction unit according to claim 1 and 2, it is characterized in that: described Recovery of the hot water tank also is provided with whipping appts II, shaft sealing device II, semicanal and chuck.
4. alpha semi-hydrated gypsum reaction unit according to claim 1 and 2, it is characterized in that: described whipping appts I comprises unit head, unit head frame, stir shaft, anchor formula paddle or screw mixing leaf, described unit head mainly is made of electric motor and step-down gear, and described stir shaft bottom and discharge port corresponding position also is provided with material handling spiral.
5. alpha semi-hydrated gypsum reaction unit according to claim 3, it is characterized in that: described whipping appts I comprises unit head, unit head frame, stir shaft, anchor formula paddle or screw mixing leaf, described unit head mainly is made of electric motor and step-down gear, the corresponding position of described stir shaft bottom and discharge port also is provided with material handling spiral, and the structure of described whipping appts II is identical with the structure of whipping appts I.
6. alpha semi-hydrated gypsum reaction unit according to claim 3, it is characterized in that: described shaft sealing device I and shaft sealing device II all adopt packing seal, mechanical seal or magnetic seal.
7. alpha semi-hydrated gypsum reaction unit according to claim 1 and 2, it is characterized in that: the feeding mouth of described reactor body is connected with former hopper by pipeline and control valve.
8. alpha semi-hydrated gypsum reaction unit according to claim 1 and 2, it is characterized in that: described negative pressure equipment is vacuum pump, negative-pressure air fan or centrifugal blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110411870 CN102584049B (en) | 2011-12-13 | 2011-12-13 | Alpha-type hemihydrate gypsum reaction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110411870 CN102584049B (en) | 2011-12-13 | 2011-12-13 | Alpha-type hemihydrate gypsum reaction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102584049A CN102584049A (en) | 2012-07-18 |
| CN102584049B true CN102584049B (en) | 2013-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110411870 Expired - Fee Related CN102584049B (en) | 2011-12-13 | 2011-12-13 | Alpha-type hemihydrate gypsum reaction device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071999B (en) * | 2014-06-27 | 2017-02-15 | 南京工业大学 | Method and reaction kettle for rapidly preparing ultra-high-strength alpha semihydrate gypsum |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076675A (en) * | 1993-02-20 | 1993-09-29 | 东南大学 | Produce the equipment of high-strength alpha-type semi-hydrated gypsum |
| CN1362382A (en) * | 2001-01-02 | 2002-08-07 | 曹光华 | Prepn process of high-strength alpha-half hydrated gypsum |
| CN100347118C (en) * | 2003-07-29 | 2007-11-07 | 同济大学 | Alpha-type hemihydrated gypsum producing process and apparatus thereof |
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- 2011-12-13 CN CN 201110411870 patent/CN102584049B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN102584049A (en) | 2012-07-18 |
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Granted publication date: 20130515 |