CN1076675A - Produce the equipment of high-strength alpha-type semi-hydrated gypsum - Google Patents
Produce the equipment of high-strength alpha-type semi-hydrated gypsum Download PDFInfo
- Publication number
- CN1076675A CN1076675A CN 93110576 CN93110576A CN1076675A CN 1076675 A CN1076675 A CN 1076675A CN 93110576 CN93110576 CN 93110576 CN 93110576 A CN93110576 A CN 93110576A CN 1076675 A CN1076675 A CN 1076675A
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- CN
- China
- Prior art keywords
- equipment
- pressurized vessel
- hydrated gypsum
- agitating vane
- alpha
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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
- C04B11/00—Calcium sulfate cements
- C04B11/02—Methods and apparatus for dehydrating gypsum
- C04B11/028—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained
- C04B11/032—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained for the wet process, e.g. dehydrating in solution or under saturated vapour conditions, i.e. to obtain alpha-hemihydrate
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
The equipment of producing high-strength alpha-type semi-hydrated gypsum is a kind of horizontal specific equipment with the plaster of paris or chemical gypsum production alpha semi-hydrated gypsum, it is mainly based on a cylindrical pressure vessel (2) that crouches and put, be provided with safety valve (3) at an upper portion thereof, feed port (4), hand-hole (5), tensimeter (6), be provided with thermometer hole (1) in its both sides, vapour pipe (8), be provided with bleeder valve (13) in its underpart, portion is provided with stir shaft (9) within it, on stir shaft, be provided with by stirring the paddle wheel that support (7) and agitating vane (7-1) are formed, the inwall of agitating vane and pressurized vessel lower end is at a distance of very little, therefore, in whipping process, can not produce deposited phenomenon.
Description
The present invention relates to the plaster of paris (CaSO
42H
2O) or chemical gypsum carry out thermal conversion and produce alpha semi-hydrated gypsum (α-CaSO
41/2 H
2O) equipment belongs to the technical field of alpha semi-hydrated gypsum production unit.
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 present invention is exactly a kind of improvement at " hydrothermal method " production process equipment.The traditional technology of producing alpha semi-hydrated gypsum with " hydrothermal method " is: with Powdered gypsum (CaSO
42H
2O) be made into certain density slip and deliver in the reactor, feed steam again and make slip be warmed up to 120 ℃～160 ℃ gradually, constant certain hour impels gypsum dehydration, dissolving to be recrystallized into alpha semi-hydrated gypsum.Decompression at last, discharging, dehydration, drying etc.Above-mentioned processing unit weak point is, employed reactor is vertical stirring, and mixing speed is generally at 50～80 rev/mins, and the crystal of alpha semi-hydrated gypsum is thick, and very easily precipitation is lumpd, and conventional in addition bleeder valve is suitable for reading to be had than long space, so discharge port often stops up, influence ordinary production.It two is, vertical stirring, and speed again can not be too fast, and can not upper and lowerly stir, and the slip layering is serious like this, and concentration has than big difference up and down.And pulp density and stirring velocity have considerable influence to the performance of alpha semi-hydrated gypsum, the α type terra alba quality inequality that existing installation is produced, and intensity is lower.
Purpose of the present invention is exactly in order to overcome the deficiency of traditional process equipment, and a kind of equipment of producing high-strength alpha-type semi-hydrated gypsum is provided.
Equipment of the present invention comprises thermometer hole (1), pressurized vessel (2), safety valve (3), feed port (4), hand-hole (5), tensimeter (6), stirs support (7), agitating vane (7-1), vapour pipe (8), stir shaft (9), watertight chest (10), speed reduction unit (11), electric motor (12), bleeder valve (13).Pressurized vessel (2) is a hollow ball or is that the two of putting of crouching is a semicircle globular hollow cylinder, be provided with bleeder valve (13) in its underpart, be provided with safety valve (3) at an upper portion thereof, feed port (4), hand-hole (5), tensimeter (6), also be provided with thermometer hole (1) and vapour pipe (8) in addition, stir shaft (9) passes this right cylinder horizontal positioned, the one end is connected with the speed reduction unit (11) of power section by watertight chest (10), be provided with on the stir shaft (9) in pressurized vessel (2) and stir support (7), on stirring support (7), be provided with agitating vane (7-1).The distance of agitating vane (7-1) bottom pressurized vessel (2) should be as far as possible little, to guarantee sediment-free.When the electric motor (12) of power section rotates, will pass through speed reduction unit (11) and drive stir shaft (9) rotation, be with stirring support (7) and agitating vane (7-1) co-rotation by stir shaft (9), stir the material that is arranged in pressurized vessel (2).
The invention has the advantages that owing to adopted horizontal stir shaft, and stir, make the material that deposit be stirred blade and directly take solution top to the blade of shapes such as crescent moon, under continuously stirring, concentration unanimity about having guaranteed.In addition because the following inwall spacing of the outer rim of agitating vane and pressurized vessel is very little, there is not precipitation so can not only guarantee the pressurized vessel bottom, and guaranteed that simultaneously the discharge port place does not have crystalline deposit, can the congestion affects discharging, because above advantage, the alpha semi-hydrated gypsum steady quality that device fabrication of the present invention is come out, intensity height, the also corresponding reduction of production cost.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the sectional view of A-A direction among Fig. 1.
Fig. 3 is the structural representation of bleeder valve part.
Embodiment of the present invention are as follows:
Pressurized vessel (2) adopts steel plate to make the middle hollow cylindrical that is, two is hollow semicircle globular hollow body, this hollow body is laterally placed, stir shaft (9) is horizontally through pressurized vessel (3), the axis that is stir shaft (9) parallels with the axis of pressurized vessel (2), one of stir shaft (9) by the end of bearing fixing at pressurized vessel, and the other end of stir shaft (9) is connected with speed reduction unit (11) by being fixed on the outer watertight chest (10) of pressurized vessel (2).Stir support (7) and be fixed in the pressurized vessel (2) on the stir shaft (9), agitating vane (7-1) is a meniscate long strip shape agitating vane (7-1) for the cross section, and is fixed on and stirs support (7) and go up the composition paddle wheel.Agitating vane (7-1) also can be " Jiong " shape or " L " shape, is fixed on the outermost end that stirs support (7), its opening on the circumference of paddle wheel toward the direction.Distance between the inwall of the outer rim of agitating vane (7-1) and pressurized vessel (2) bottom is 1～50 millimeter, generally grasps in 1～3 millimeter.Safety valve (3), opening for feed (4), hand-hole (5), tensimeter (6) all are positioned at the top of pressurized vessel (2).Thermometer hole (1), vapour pipe (8) lay respectively at two upper lateral parts of pressurized vessel (2), and pass through to insert the middle and lower part of pressurized vessel (2) with the next door of agitating vane (7-1).Bleeder valve (13) is positioned at pressurized vessel (2) bottom, and the end face of the valve plug (13-1) of its bleeder valve (13) is concordant with the inwall of pressurized vessel (2), to guarantee also do not have precipitation in the part of valve plug end face, does not influence the rotation of paddle wheel.According to the above, just can be made into the equipment of production high-strength alpha-type semi-hydrated gypsum of the present invention.
Claims (4)
1, a kind of equipment of producing alpha semi-hydrated gypsum with the plaster of paris or chemical gypsum, by power section, mixing part and container portions branch are formed, it is characterized in that pressurized vessel (2) is that an empty spheroid or the two of putting of crouching are semicircle globular hollow round column body, be provided with bleeder valve (13) in its underpart, be provided with safety valve (3) at an upper portion thereof, feed port (4), hand-hole (5), tensimeter (6), also have thermometer hole (1) and vapour pipe (8) in addition, stir shaft (9) passes this right cylinder horizontal positioned, the one end is connected with the speed reduction unit (11) of power section by watertight chest (10), be provided with on the stir shaft (9) in pressurized vessel (2) and stir support (7), on stirring support (7), be provided with agitating vane (7-1).
2, the equipment of production high-strength alpha-type semi-hydrated gypsum according to claim 1 is characterized in that agitating vane (7-1) for crescent or " Jiong " shape or " L " shape, is fixed on the outermost end that stirs support (7), its opening on circumference toward the direction.
3, the equipment of production high-strength alpha-type semi-hydrated gypsum according to claim 1 and 2 is characterized in that the spacing between the inwall of the outer rim of described agitating vane (7-1) and pressurized vessel (2) bottom is 1～50 millimeter.
4, the equipment of production high-strength alpha-type semi-hydrated gypsum according to claim 1 and 2, the end face of valve plug (13-1) of bleeder valve (13) that it is characterized in that being positioned at pressurized vessel (2) bottom is concordant with the inwall of pressurized vessel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93110576 CN1076675A (en) | 1993-02-20 | 1993-02-20 | Produce the equipment of high-strength alpha-type semi-hydrated gypsum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93110576 CN1076675A (en) | 1993-02-20 | 1993-02-20 | Produce the equipment of high-strength alpha-type semi-hydrated gypsum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1076675A true CN1076675A (en) | 1993-09-29 |
Family
ID=4988426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93110576 Pending CN1076675A (en) | 1993-02-20 | 1993-02-20 | Produce the equipment of high-strength alpha-type semi-hydrated gypsum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1076675A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100345788C (en) * | 2006-01-10 | 2007-10-31 | 南京一夫建材实业有限公司 | Alpha type high-strength gypsum and its preparation method |
| CN100347118C (en) * | 2003-07-29 | 2007-11-07 | 同济大学 | Alpha-type hemihydrated gypsum producing process and apparatus thereof |
| CN100425560C (en) * | 2006-09-14 | 2008-10-15 | 山西北方石膏工业有限公司 | Continuous production method and apparatus for alpha semi-water gypsum |
| CN101679115B (en) * | 2007-05-24 | 2012-07-04 | 格林策巴赫Bsh责任有限公司 | Method for the production of alpha-calcium sulfate hemihydrate from calcium sulfate dihydrate |
| CN102584048A (en) * | 2011-12-13 | 2012-07-18 | 张晓亮 | Equipment for producing alpha-type hemihydrate gypsum |
| CN102584049A (en) * | 2011-12-13 | 2012-07-18 | 张晓亮 | Alpha-type hemihydrate gypsum reaction device |
| WO2014128413A1 (en) * | 2013-02-25 | 2014-08-28 | André Sassi | Motor vehicle provided with a protective tarpaulin system |
| CN105731845A (en) * | 2016-02-29 | 2016-07-06 | 湖北金炉节能股份有限公司 | Rotary autoclaved drying kettle |
| CN105771768A (en) * | 2016-04-20 | 2016-07-20 | 林菡 | Material mixing and stirring device |
| CN105776919A (en) * | 2016-02-29 | 2016-07-20 | 湖北金炉节能股份有限公司 | Rotary steam-pressing drying integrated processing system for production of alpha semi-hydrated gypsum |
-
1993
- 1993-02-20 CN CN 93110576 patent/CN1076675A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100347118C (en) * | 2003-07-29 | 2007-11-07 | 同济大学 | Alpha-type hemihydrated gypsum producing process and apparatus thereof |
| CN100345788C (en) * | 2006-01-10 | 2007-10-31 | 南京一夫建材实业有限公司 | Alpha type high-strength gypsum and its preparation method |
| CN100425560C (en) * | 2006-09-14 | 2008-10-15 | 山西北方石膏工业有限公司 | Continuous production method and apparatus for alpha semi-water gypsum |
| CN101679115B (en) * | 2007-05-24 | 2012-07-04 | 格林策巴赫Bsh责任有限公司 | Method for the production of alpha-calcium sulfate hemihydrate from calcium sulfate dihydrate |
| CN102584048B (en) * | 2011-12-13 | 2013-03-27 | 张晓亮 | Equipment for producing alpha-type hemihydrate gypsum |
| CN102584049A (en) * | 2011-12-13 | 2012-07-18 | 张晓亮 | Alpha-type hemihydrate gypsum reaction device |
| CN102584048A (en) * | 2011-12-13 | 2012-07-18 | 张晓亮 | Equipment for producing alpha-type hemihydrate gypsum |
| WO2014128413A1 (en) * | 2013-02-25 | 2014-08-28 | André Sassi | Motor vehicle provided with a protective tarpaulin system |
| CN105731845A (en) * | 2016-02-29 | 2016-07-06 | 湖北金炉节能股份有限公司 | Rotary autoclaved drying kettle |
| CN105776919A (en) * | 2016-02-29 | 2016-07-20 | 湖北金炉节能股份有限公司 | Rotary steam-pressing drying integrated processing system for production of alpha semi-hydrated gypsum |
| CN105731845B (en) * | 2016-02-29 | 2017-08-25 | 湖北金炉节能股份有限公司 | Rotate steam pressure drying kettle |
| CN105776919B (en) * | 2016-02-29 | 2017-10-10 | 湖北金炉节能股份有限公司 | Rotate the system of processing of the drying integrated production αsemiwatergypsum of steam pressure |
| CN105771768A (en) * | 2016-04-20 | 2016-07-20 | 林菡 | Material mixing and stirring device |
| CN105771768B (en) * | 2016-04-20 | 2018-08-17 | 林菡 | A kind of material mixed stirring device |
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Legal Events
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |