CN203816266U - Crystallization kettle for phosphorous acid production - Google Patents
Crystallization kettle for phosphorous acid production Download PDFInfo
- Publication number
- CN203816266U CN203816266U CN201420255157.4U CN201420255157U CN203816266U CN 203816266 U CN203816266 U CN 203816266U CN 201420255157 U CN201420255157 U CN 201420255157U CN 203816266 U CN203816266 U CN 203816266U
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- Prior art keywords
- kettle
- phosphorous acid
- producing
- crystallization kettle
- shaft
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Abstract
A crystallization kettle for phosphorous acid production comprises a kettle body, wherein the kettle body is provided with a water jacket; a stirring device is arranged in the kettle body; in the stirring device, a motor and a speed reducer are connected with a bracket through an elastic element; the output shaft of the speed reducer is connected with a stirring shaft through an elastic shaft coupling; the stirring device is arranged above the kettle body; the stirring shaft is supported on the bracket through a first bearing and a second bearing; the central space between the first bearing and the second bearing is greater than or equal to 15% of total length of the stirring shaft. According to the crystallization kettle for phosphorous acid production, provided by the utility model, as a flexible connecting manner is adopted, the alternating stress loaded on the speed reducer is reduced and the trouble-free production time of the whole crystallization kettle is prolonged; experiments prove that the trouble-free production time is prolonged by 50-200% compared with the prior art.
Description
Technical field
The utility model relates to phosphorous acid production field, especially a kind of crystallization kettle of preparing phosphorous acid for the phosphorus-containing waste slag producing from phosphoric acid preparation technology.
Background technology
In prior art, in the phosphorus-containing waste slag producing, prepare phosphorous acid and need to pass through Crystallization Procedure from phosphoric acid production, for example: Chinese patent literature CN101648705A, recorded many preparation were establisheds, Crystallization Procedure is all necessary.But in the prior art, the agitating device of crystallization kettle is very easy to damage, and the frequent replacing of the maintenance of equipment and parts, makes operating cost very high, there is no at present good solution.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of crystallization kettle of producing for phosphorous acid, can extension device service life, reduce operating cost, in the scheme of optimizing, can also further improve the crystalline rate of phosphorous acid.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of crystallization kettle of producing for phosphorous acid, comprises kettle, kettle is provided with water leg, in kettle, be provided with agitating device, in described agitating device, motor and speed reducer is connected with support by flexible member;
The output shaft of reductor is connected with shaft by yielding coupling.
Described agitating device is positioned at the top of kettle, and shaft is bearing on support by clutch shaft bearing and the second bearing, and wherein the center distance between clutch shaft bearing and the second bearing, is more than or equal to 15% of shaft overall length.
In described yielding coupling, the connecting plate at two ends connects by steel wire, is filled with rubber elastomer between connecting plate, fixedly mounts many connecting bolts on connecting plate.
Inwall at kettle is also provided with the many flanges that backflow.
The part that the described flange that backflows is connected with inner wall of kettle is curve.
The described flange cross section that backflows is curve.
The described upper and lower closed at both ends of the flange that backflows.
In described shaft, at least two group paddles are installed from top to bottom.
The paddle that is positioned at bottom is spiral paddle, and other paddles are in-line arrangement paddle.
The diameter of paddle is less than or equal to the radius of inner wall of kettle maximum.
Through carefully comparison, crystallization kettle of the prior art damages and focuses mostly at reductor, and the value of reductor is conventionally higher, often change and increased production cost, inventor further finds, due to phosphorous acid solution thickness comparatively, but its viscosity is not uniform, in whipping process, make shaft in rotatablely moving, include swing, and between reductor and shaft for being rigidly connected, this swing makes to produce alternate stress between the part of reductor and impacts, thus the service life of having reduced reductor.
A kind of crystallization kettle of producing for phosphorous acid that the utility model provides, the mode flexibly connecting by employing, reduced the alternate stress being carried on reductor, thereby extended the time between failures of whole crystallization kettle, through test, compared to prior art, extend time between failures 50% ~ 200%.Further, by extending the spacing between block bearing, improve the rigidity of shaft, reduced amplitude of fluctuation.Further, by the flange that backflows arranging, and reduce the diameter of paddle, when improving mixing effect, also reduced the amplitude of fluctuation of shaft.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is that overall structure master of the present utility model looks schematic diagram.
Fig. 2 is the A-A cross-sectional schematic of Fig. 1.
Fig. 3 is the structural representation of the utility model Elastic shaft coupling.
In figure: motor 1, reductor 2, flexible member 3, upper bracket 4, yielding coupling 5, connecting bolt 51, connecting plate 52, steel wire 53, rubber elastomer 54, shaft 6, support 7, clutch shaft bearing 8, lower carriage 9, the second bearings 10, in-line arrangement paddle 11, spiral paddle 12, the flange 13 that backflows, charging aperture 14, frame 15, kettle 16, water leg 17, water inlet 18, delivery port 19, discharging opening 20.
The specific embodiment
In Fig. 1 ~ 3, a kind of crystallization kettle of producing for phosphorous acid, comprises kettle 16, and kettle 16 tops are provided with charging aperture 14, and bottom is provided with discharging opening 20.
Kettle 16 is provided with water leg 17, and water leg 17 is provided with water inlet 18 and delivery port 19, and in the technique of producing for phosphorous acid, water leg 17 passes into normal temperature cooling water.
In kettle 16, be provided with agitating device, in described agitating device, motor 1 is connected with support by flexible member 3 with reductor 2;
The output shaft of reductor 2 is connected with shaft 6 by yielding coupling 5.By adopting elasticity to connect replacement, be rigidly connected, significantly extended the service life of reductor 2, thereby extended the time between failures of whole device.
Preferred scheme is as in Fig. 3, and in described yielding coupling 5, the connecting plate 52 at two ends connects by steel wire 53, is filled with rubber elastomer 54 between connecting plate 52, fixedly mounts many connecting bolts 51 on connecting plate 52.Adopt this structure, shock absorbing greatly, and simple in structure, be convenient to processing.
The yielding coupling 5 that adopts other structures is also feasible, the yielding coupling of for example recording in Chinese patent literature 201110413863.8.
Preferred scheme is as in Fig. 1, described agitating device is positioned at the top of kettle 16, shaft 6 is bearing on support by clutch shaft bearing 8 and the second bearing 10, and wherein the center distance between clutch shaft bearing 8 and the second bearing 10, is more than or equal to 15% of shaft 6 overall lengths.Further preferred, be more than or equal to 20% of shaft 6 overall lengths, compared with prior art, the utility model has extended the distance between clutch shaft bearing 8 and the second bearing 10, thereby improved the rigidity in shaft 6 transmission process, reduced the amplitude of fluctuation of shaft 6.Reduced the rigid shock to driving parts.
The concrete structure of this routine mid frame is: the support 7 of gantry type is fixedly mounted in frame 15, is installed with upper bracket 4 and lower carriage 9 on support 7.Wherein, upper bracket 4 is fixedly connected with reductor 2 with motor 1, in this example, motor 1 is fixedly connected with reductor 2, and reductor 2 is fixedly connected with upper bracket 4, at adpting flange place, is provided with flexible member 3, flexible member 3 in this example adopts thick rubber blanket, and its thickness preferably surpasses 10mm.This can cushion the impact that alternate stress brings to a great extent.9 of lower carriages are used for fixing installs clutch shaft bearing 8 and the second bearing 10.
Preferred scheme is as in Fig. 1,2, at the inwall of kettle 16, is also provided with the many flanges 13 that backflow.Structure, makes the phosphorous acid solution in stirring form turbulent flow thus, forms a plurality of partial circulatings, thereby improve crystalline rate in the systemic circulation of phosphorous acid solution.
Preferred scheme is as in Fig. 2, and the described flange 13 that backflows is curve with the part that kettle 16 inwalls are connected, and is preferably circular arc.Further preferred, described flange 13 cross sections that backflow are curve, are also preferably circular arc.Structure, is convenient to the cleaning of kettle 16 inwalls thus, and when for the lower liquid of viscosity, this structure has also limited the rapid degree of turbulent flow, avoids the phenomenon that occurs that solution splashes.
Preferred scheme is as in Fig. 1, described backflow flange 13 Shang Xia closed at both ends so that clear up.Add man-hour, by backflow flange 13 separately after processing with together with the inwall full weld of kettle 16.
Preferred scheme, as in Fig. 1, in described shaft 6, is provided with at least two group paddles from top to bottom.
Wherein, the paddle that is positioned at bottom is spiral paddle 12, and other paddles are in-line arrangement paddle 11.Structure thus, in-line arrangement paddle 11, for improving stirring efficiency, is also convenient to dwindle the diameter of paddle, and the spiral paddle 12 of bottom is for promoting the systemic circulation of phosphorous acid solution, i.e. a circulation from top to bottom.
In preferred scheme, the diameter of paddle is less than or equal to the radius of kettle 16 inwall maximums.Structure thus, the diameter that dwindles paddle can reduce the amplitude of fluctuation of shaft 6, also reduces the moment of torsion that reductor 2 transmits.Thereby reduce wearing and tearing and the impact of transmission parts.Under the cooperation of paddle structure and flange 13 structures of backflowing, the diameter that dwindles paddle can't reduce the efficiency of stirring.
During use, the dense phosphorous acid solution that distillation still is come, enters into kettle 16 from charging aperture 14, start agitating device stir about 4 hours, this period is that nature is cooling, then passes into recirculated water and carries out coolingly, and the phosphorous acid slurries after crystallization are discharged to next process from discharging opening 20.
The above embodiments are only optimal technical scheme of the present utility model; and should not be considered as for restriction of the present utility model; the technical scheme that protection domain of the present utility model should be recorded with claim, comprises that the alternative that is equal to of technical characterictic in the technical scheme that claim records is protection domain.Being equal within the scope of this, replaces and improves, also within protection domain of the present utility model.
Claims (10)
1. a crystallization kettle of producing for phosphorous acid, comprise kettle (16), kettle (16) is provided with water leg (17), and kettle is provided with agitating device in (16), it is characterized in that: in described agitating device, motor (1) is connected with support by flexible member (3) with reductor (2);
The output shaft of reductor (2) is connected with shaft (6) by yielding coupling (5).
2. a kind of crystallization kettle of producing for phosphorous acid according to claim 1, it is characterized in that: described agitating device is positioned at the top of kettle (16), shaft (6) is bearing on support by clutch shaft bearing (8) and the second bearing (10), wherein the center distance between clutch shaft bearing (8) and the second bearing (10), is more than or equal to 15% of shaft (6) overall length.
3. a kind of crystallization kettle of producing for phosphorous acid according to claim 1, it is characterized in that: in described yielding coupling (5), the connecting plate at two ends (52) connects by steel wire (53), between connecting plate (52), be filled with rubber elastomer (54), the upper fixed installation of connecting plate (52) many connecting bolts (51).
4. a kind of crystallization kettle of producing for phosphorous acid according to claim 1, is characterized in that: the inwall at kettle (16) is also provided with the many flanges that backflow (13).
5. a kind of crystallization kettle of producing for phosphorous acid according to claim 4, is characterized in that: the described flange that backflows (13) is curve with the part that kettle (16) inwall is connected.
6. a kind of crystallization kettle of producing for phosphorous acid according to claim 5, is characterized in that: the described flange that backflows (13) cross section is curve.
7. according to a kind of crystallization kettle of producing for phosphorous acid described in claim 5 or 6, it is characterized in that: the upper and lower closed at both ends of the described flange that backflows (13).
8. according to a kind of crystallization kettle of producing for phosphorous acid described in claim 1 or 4, it is characterized in that: in described shaft (6), at least two group paddles are installed from top to bottom.
9. a kind of crystallization kettle of producing for phosphorous acid according to claim 8, is characterized in that: the paddle that is positioned at bottom is spiral paddle (12), and other paddles are in-line arrangement paddle (11).
10. a kind of crystallization kettle of producing for phosphorous acid according to claim 8, is characterized in that: the diameter of paddle is less than or equal to the radius of kettle (16) inwall maximum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420255157.4U CN203816266U (en) | 2014-05-19 | 2014-05-19 | Crystallization kettle for phosphorous acid production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420255157.4U CN203816266U (en) | 2014-05-19 | 2014-05-19 | Crystallization kettle for phosphorous acid production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203816266U true CN203816266U (en) | 2014-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420255157.4U Expired - Fee Related CN203816266U (en) | 2014-05-19 | 2014-05-19 | Crystallization kettle for phosphorous acid production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203816266U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105641965A (en) * | 2014-12-05 | 2016-06-08 | 雍自玲 | Crystallization kettle which is safe to use |
| CN109364516A (en) * | 2018-12-27 | 2019-02-22 | 昆山恒诚荣机械设备有限公司 | Concentrate feeding system crystallizer |
-
2014
- 2014-05-19 CN CN201420255157.4U patent/CN203816266U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105641965A (en) * | 2014-12-05 | 2016-06-08 | 雍自玲 | Crystallization kettle which is safe to use |
| CN109364516A (en) * | 2018-12-27 | 2019-02-22 | 昆山恒诚荣机械设备有限公司 | Concentrate feeding system crystallizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20150519 |
|
| EXPY | Termination of patent right or utility model |