CN112221188A - Ammonium sulfate crystal cooling crystallization device - Google Patents
Ammonium sulfate crystal cooling crystallization device Download PDFInfo
- Publication number
- CN112221188A CN112221188A CN202010840239.5A CN202010840239A CN112221188A CN 112221188 A CN112221188 A CN 112221188A CN 202010840239 A CN202010840239 A CN 202010840239A CN 112221188 A CN112221188 A CN 112221188A
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- CN
- China
- Prior art keywords
- kettle body
- crystallization kettle
- ammonium sulfate
- crystallization
- sulfate crystal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
Abstract
The utility model provides an ammonium sulfate crystal cooling crystallization device, includes the crystallization kettle body, and crystallization kettle body upper portion is provided with the inlet, and the bottom is provided with the material export, the internal portion central point of crystallization kettle puts the rotating electrical machines, connects on this rotating electrical machines to be provided with the rotation axis, and this rotation axis bottom is provided with a plurality of stirring vane of bilateral symmetry, stirring vane is the U type, by an end to end connection's an inclined axle, a horizontal axis, a vertical axle is constituteed, and vertical axle edge sets up the cockscomb structure, and the inner wall of the crystallization kettle body is leaned on to the prong of cockscomb structure. The invention scrapes off the crystal attached to the inner wall of the crystallization kettle body by arranging the serrated tooth tips, thereby improving the heat transfer effect and further improving the productivity of the product.
Description
Technical Field
The invention relates to the technical field of crystallization equipment, in particular to an ammonium sulfate crystal cooling crystallization device.
Background
Ammonium sulfate is an excellent nitrogen fertilizer (commonly called as field fertilizing powder), is suitable for general soil and crops, can make branches and leaves grow vigorously, improve fruit quality and yield, enhance the resistance of crops to disasters, and can be used as a base fertilizer, an additional fertilizer and a seed fertilizer. Can produce ammonium chloride by double decomposition reaction with salt, produce ammonium alum by action with aluminum sulfate, and produce refractory material together with boric acid, etc.; also is a catalyst for food dark brown, a nitrogen source for culturing yeast in the production of fresh yeast, an acid dye dyeing auxiliary agent and a leather deliming agent; in addition, the method is also used for beer brewing, chemical reagent production, storage battery production and the like, and has good application prospect. Therefore, the separation and preparation of ammonium sulfate fertilizer is particularly important.
The industrial ammonium sulfate is mostly obtained by neutralization reaction of ammonium hydroxide and sulfuric acid, crystallization, centrifugal separation and drying, and by-products in industrial production or discharged waste gas are absorbed by sulfuric acid or ammonia water; in the ammonium sulfate preparation system, the concentration of the slurry is required to be concentrated until ammonium sulfate is crystallized, and then the ammonium sulfate solid product is obtained by separation and drying. The solubility of ammonium sulfate is great and it is less along with temperature variation, and the evaporation crystallization technology is often adopted to the concentration process, and it is high to crystallize material viscosity in current ammonium sulfate preparation system, and in the cooling crystallization process, the adhesion on the crystallization kettle wall easily influences heat transfer effect to restrict the productivity of product.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: overcome prior art's not enough, provide an ammonium sulfate crystal cooling crystallization device, can effectively scrape the crystal of crystallization kettle inner wall down in the crystallization process to do not influence the heat transfer in the reaction process, improve the device of productivity.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an ammonium sulfate crystal cooling crystallization device, includes the crystallization kettle body, and crystallization kettle body upper portion is provided with the inlet, and the bottom is provided with the material export, the internal portion central point of crystallization kettle puts the rotating electrical machines, connects on this rotating electrical machines to be provided with the rotation axis, and this rotation axis bottom is provided with a plurality of stirring vane of bilateral symmetry, stirring vane is the U type, by an end to end connection's an inclined axle, a horizontal axis, a vertical axle is constituteed, and vertical axle edge sets up the cockscomb structure, and the inner wall of the crystallization kettle body is leaned on to the prong of cockscomb structure.
Preferably, 4-8 stirring blades are arranged on the stirring shaft.
Preferably, the stirring blades are symmetrically distributed along the stirring shaft.
Preferably, the side wall of the crystallization kettle body is fixedly provided with a jacket, a cooling cavity is formed between the jacket and the crystallization kettle body, the upper end of the cooling cavity is provided with a cooling water outlet, and the bottom of the cooling cavity is provided with a cooling water inlet.
Preferably, the crystallization kettle is in a tank shape.
Preferably, the front end of the tilting shaft is fixedly connected with the rotating shaft.
Preferably, the vertical shaft is arranged in the crystallization kettle body at a position close to the inner wall of the crystallization kettle body.
Preferably, a temperature sensor is arranged on the inner side wall of the crystallization kettle body.
Preferably, the outer side wall of the crystallization kettle body is provided with a temperature display device connected with the output end of the temperature sensor.
The invention has the beneficial effects that: the stirring blades can be used for fully stirring the materials in the crystallization kettle, so that the materials in the crystallization kettle can flow better, the effective mixing of the materials is realized, and the uniformity of the materials in the kettle is realized; the vertical stirring shaft is close to the inner wall of the crystallization kettle, so that the crystallized materials can be effectively prevented from being adhered to the inner wall of the crystallization kettle, the heat transfer effect is greatly improved, and the productivity of products is improved.
Drawings
FIG. 1 is a schematic view of an apparatus for cooling and crystallizing ammonium sulfate crystals;
FIG. 2 is an enlarged view of the sawtooth structure of FIG. 1;
in the figure: the device comprises a rotating motor 1, a liquid inlet 2, a stirring blade 3, a cooling water outlet 4, a rotating shaft 5, a discharge port 6, a cooling water inlet 7 and a tooth tip 8.
Detailed Description
The invention is further explained with reference to the drawings and the embodiments.
Referring to fig. 1 and 2:
the utility model provides an ammonium sulfate crystal cooling crystallization device, includes the crystallization kettle body, and crystallization kettle body upper portion is provided with inlet 2, and the bottom is provided with discharge gate 6, the internal central point of crystallization kettle puts the rotating electrical machines, connects on this rotating electrical machines to be provided with rotation axis 5, and this 5 bottoms of rotation axis are provided with a plurality of stirring vane 3 of bilateral symmetry, stirring vane is the U type, by an end to end connection's an incline axle, a horizontal axis, a vertical axle is constituteed, and vertical axle edge sets up the sawtooth structure, and 8 tips of tooth of sawtooth structure paste the inner wall that leans on the crystallization kettle body.
In this embodiment, 8 stirring vanes are arranged on the stirring shaft and are distributed along the stirring shaft in bilateral symmetry.
In this embodiment, the side wall of the crystallization kettle body is fixedly provided with a jacket, a cooling cavity is formed between the jacket and the crystallization kettle body, the upper end of the cooling cavity is provided with a cooling water outlet, and the bottom of the cooling cavity is provided with a cooling water inlet.
In this embodiment, the crystallization kettle is in the shape of a tank.
In this embodiment, the front end of the tilt shaft is fixedly connected to the rotation shaft 5.
In this embodiment, the vertical shaft is disposed in the crystallization kettle body at a position close to the inner wall of the crystallization kettle body.
In this embodiment, be provided with temperature-sensing ware on the crystallization kettle body inside wall.
In this embodiment, be provided with the temperature display device who is connected with the temperature-sensing ware output on the crystallization kettle body lateral wall.
In this embodiment, the top view of the sawtooth-shaped structure is a plurality of isosceles triangle structures, and the isosceles sides and the bottom side of the triangle form an included angle of 45 ° to 75 °, and in this embodiment, the included angle is preferably 60 °. The vertex angle of the sawtooth-shaped structure 4 is 30-90 degrees, which is beneficial to scraping the crystal on the inner wall of the crystallization kettle by the sawtooth-shaped structure.
The working principle and the using method of the invention are as follows:
after a material to be crystallized enters the crystallization kettle body, a stirring motor is started, the stirring motor simultaneously drives the stirring blades 3 to work, a cooling medium is introduced into a jacket of the crystallization kettle and used for cooling the material, the material is gradually separated out along with the reduction of the temperature of the material in the crystallization kettle body, the inclined and horizontal stirring shafts play a role in stirring the material, and the vertical stirring shafts can effectively prevent the crystallized material from being adhered to the inner wall of the crystallization kettle body and influencing the heat transfer; the materials in the kettle can flow well, the uniformity of the materials is ensured, the heat transfer effect is greatly improved, and the productivity of products is improved.
In the preferred scheme, the stirring blade 3 can also be connected with a rotating speed control device and a rotating speed monitoring device to control the stirring speed in the crystallization kettle.
The present invention is not limited to the above embodiments, and various combinations and modifications of the above technical features may be provided for those skilled in the art, and modifications, variations, equivalents, or uses of the structure or method of the present invention in other fields without departing from the spirit and scope of the present invention are included in the protection scope of the present invention.
Claims (9)
1. The utility model provides an ammonium sulfate crystal cooling crystallization device, includes the crystallization kettle body, and crystallization kettle body upper portion is provided with the inlet, and the bottom is provided with material outlet, its characterized in that: the internal central point of crystallizer puts the rotating electrical machines, and the last connection of this rotating electrical machines is provided with the rotation axis, and this rotation axis bottom is provided with a plurality of stirring vane of bilateral symmetry, stirring vane is the U type, by an end to end connection's an inclined axle, a horizontal axis, a vertical axle is constituteed, and vertical axle edge sets up the sawtooth structure, and the tooth point of sawtooth structure pastes the inner wall of the crystallizer body.
2. The ammonium sulfate crystal cooling crystallization apparatus of claim 1, characterized in that: and 4-8 stirring blades are arranged on the stirring shaft.
3. The ammonium sulfate crystal cooling crystallization apparatus of claim 2, characterized in that: the stirring blades are symmetrically distributed along the stirring shaft.
4. The ammonium sulfate crystal cooling crystallization apparatus of claim 1, characterized in that: the side wall of the crystallization kettle body is fixedly provided with a jacket, a cooling cavity is formed between the jacket and the crystallization kettle body, the upper end of the cooling cavity is provided with a cooling water outlet, and the bottom of the cooling cavity is provided with a cooling water inlet.
5. The ammonium sulfate crystal cooling crystallization apparatus of claim 1, characterized in that: the crystallization kettle is in a tank body shape.
6. The ammonium sulfate crystal cooling crystallization apparatus of claim 1, characterized in that: the front end of the inclined shaft is fixedly connected with the rotating shaft.
7. The ammonium sulfate crystal cooling crystallization apparatus of claim 1, characterized in that: the vertical shaft is arranged at a position close to the inner wall of the crystallization kettle body in the crystallization kettle body.
8. The ammonium sulfate crystal cooling crystallization apparatus of claim 1, characterized in that: and a temperature sensor is arranged on the inner side wall of the crystallization kettle body.
9. The ammonium sulfate crystal cooling crystallization apparatus of claim 8, characterized in that: and a temperature display device connected with the output end of the temperature sensor is arranged on the outer side wall of the crystallization kettle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010840239.5A CN112221188A (en) | 2020-08-20 | 2020-08-20 | Ammonium sulfate crystal cooling crystallization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010840239.5A CN112221188A (en) | 2020-08-20 | 2020-08-20 | Ammonium sulfate crystal cooling crystallization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112221188A true CN112221188A (en) | 2021-01-15 |
Family
ID=74116395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010840239.5A Withdrawn CN112221188A (en) | 2020-08-20 | 2020-08-20 | Ammonium sulfate crystal cooling crystallization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112221188A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015013959A1 (en) * | 2014-10-30 | 2016-05-04 | Henning Meldau | Method and device for the production of crystals |
| CN205360655U (en) * | 2015-12-31 | 2016-07-06 | 淮安市丰立德环保科技有限公司 | Crystallization kettle high efficiency is prevented crystallization brute force and is erodeed stirring rake |
| CN205391792U (en) * | 2016-02-24 | 2016-07-27 | 福建万科药业有限公司 | Formula crystallization kettle is subsided in stirring |
| CN206276059U (en) * | 2016-12-21 | 2017-06-27 | 宜昌凯翔化工有限公司 | For the crystallization kettle in phosphorous acid production system |
| CN209221548U (en) * | 2018-10-29 | 2019-08-09 | 南通华宇化工科技有限公司 | A kind of 2- cyano -4`- bromomethylbiphenyl production efficient crystallization kettle |
-
2020
- 2020-08-20 CN CN202010840239.5A patent/CN112221188A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015013959A1 (en) * | 2014-10-30 | 2016-05-04 | Henning Meldau | Method and device for the production of crystals |
| CN205360655U (en) * | 2015-12-31 | 2016-07-06 | 淮安市丰立德环保科技有限公司 | Crystallization kettle high efficiency is prevented crystallization brute force and is erodeed stirring rake |
| CN205391792U (en) * | 2016-02-24 | 2016-07-27 | 福建万科药业有限公司 | Formula crystallization kettle is subsided in stirring |
| CN206276059U (en) * | 2016-12-21 | 2017-06-27 | 宜昌凯翔化工有限公司 | For the crystallization kettle in phosphorous acid production system |
| CN209221548U (en) * | 2018-10-29 | 2019-08-09 | 南通华宇化工科技有限公司 | A kind of 2- cyano -4`- bromomethylbiphenyl production efficient crystallization kettle |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210115 |
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| WW01 | Invention patent application withdrawn after publication |