CN221014573U - Large crystal urea production device - Google Patents
Large crystal urea production device Download PDFInfo
- Publication number
- CN221014573U CN221014573U CN202322800901.6U CN202322800901U CN221014573U CN 221014573 U CN221014573 U CN 221014573U CN 202322800901 U CN202322800901 U CN 202322800901U CN 221014573 U CN221014573 U CN 221014573U
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- CN
- China
- Prior art keywords
- crystallizer
- large crystal
- install bin
- crystal urea
- producing large
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000004202 carbamide Substances 0.000 title claims abstract description 22
- 239000013078 crystal Substances 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000003860 storage Methods 0.000 claims abstract description 28
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims description 10
- 238000000605 extraction Methods 0.000 claims description 5
- 238000002425 crystallisation Methods 0.000 abstract description 15
- 230000008025 crystallization Effects 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 11
- 230000009286 beneficial effect Effects 0.000 description 8
- 230000003749 cleanliness Effects 0.000 description 4
- 239000000110 cooling liquid Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model relates to the technical field of urea production, in particular to a large crystal urea production device. Including crystallizer and install bin, gear motor, puddler and stirring leaf are installed at the top of crystallizer, and ultrasonic stirrer is installed to the top of crystallizer, install the bin and install in the below of crystallizer, and the outside integrated into one piece of install bin has the fin, the exhaust fan is installed to the latter half of install bin, and the internally mounted of install bin has the storage water tank, it is spacing through the heat-conducting plate between storage water tank and the install bin, the check valve is installed at the top An Duichen of install bin, the water pump is installed to the top of install bin, and the front end of water pump is connected with cooling duct, cooling duct's the other end is connected with the back flow. In the crystallization process, the gear motor drives the stirring blade to rotate through the stirring rod to stir the solution, and the symmetrically distributed ultrasonic stirrers comprehensively and reliably stir the solution.
Description
Technical Field
The utility model relates to the technical field of urea production, in particular to a large crystal urea production device.
Background
A large-crystal urea production plant generally comprises a urea synthesis reactor, a solvent circulation system, a crystallizer for crystallizing urea dissolved in a solvent to form large-crystal urea, and a separation system. The crystallizer generally adopts a cooling crystallization mode, and urea is crystallized out through reducing the temperature, and a stirring device is often required to be used for stirring the solution in the crystallization process, but the existing stirring device is usually used for stirring the solution by using a stirring rod, and the single stirring mode is inconvenient for increasing the crystal growth and aggregation in the solution, so that the practicability of the device in use is reduced.
Disclosure of utility model
In view of the above problems, an object of the present utility model is to: the device for producing the large crystal urea solves the problems that the existing stirring device usually uses a stirring rod to stir the solution, and a single stirring mode is inconvenient to increase the crystal growth and aggregation in the solution, so that the practicability of the device in use is reduced.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a large crystal urea's apparatus for producing, includes crystallizer and install bin, discharge gate and bleeder valve are installed to the below of crystallizer, gear motor is installed at the top of crystallizer, and gear motor's below is connected with puddler and stirring leaf, the top intercommunication of crystallizer has the inlet pipe, and ultrasonic stirrer is installed to the top of crystallizer, install bin installs in the below of crystallizer, and the outside integrated into one piece of install bin has the fin, exhaust fan is installed to the lower half of install bin, and installs the internally mounted of bin has the storage water tank, it is spacing through the heat-conducting plate between storage water tank and the install bin, the check valve is installed at the top An Duichen of install bin, the water pump is installed to the top of install bin, and the front end of water pump is connected with cooling pipe, cooling pipe's the other end is connected with the back flow, and the lower extreme and the storage water tank of back flow are connected.
The beneficial effects of the utility model are as follows: in the crystallization process, the gear motor drives the stirring blade to rotate through the stirring rod to stir the solution, and the symmetrically distributed ultrasonic stirrers comprehensively and reliably stir the solution.
To facilitate stirring of the solution:
As a further improvement of the above technical scheme: and a rotation installation structure is formed between the stirring blades and the crystallizer through a speed reducing motor.
The beneficial effects of this improvement are: the gear motor drives the stirring blade to rotate through the stirring rod, so that the solution can be stirred.
As a further improvement of the above technical scheme: the ultrasonic stirrer is symmetrically arranged with respect to the center line of the crystallizer.
The beneficial effects of this improvement are: four ultrasonic stirrers which are symmetrically distributed can comprehensively and rapidly stir the solution in the crystallizer to accelerate the crystallization of the solution.
To facilitate cooling of the water storage tank:
As a further improvement of the above technical scheme: the outside block of air extraction fan installs the filter screen.
The beneficial effects of this improvement are: the filter screen can carry out comprehensive reliable filtration to the air that gets into the middle part of mounting box and storage water tank, guarantees the cleanliness factor of air.
As a further improvement of the above technical scheme: the exhaust fans are symmetrically distributed at the bottom of the crystallizer.
The beneficial effects of this improvement are: the symmetrically distributed exhaust fans can facilitate air to enter the inside of the installation box and the water storage tank.
In order to facilitate the heat dissipation of the water storage tank by the heat conducting plate:
As a further improvement of the above technical scheme: through holes are formed in the heat conducting plate at equal intervals.
The beneficial effects of this improvement are: the through holes can conveniently radiate the heat of the heat conducting plate by the air entering, so that the heat of the water storing tank by the heat conducting plate can be conveniently radiated.
To facilitate filtration of the refluxing coolant:
As a further improvement of the above technical scheme: and a filter box is arranged in the water storage tank and close to the position of the return pipe.
The beneficial effects of this improvement are: the filter box can filter the returned cooling liquid, so that the cleanliness of the filtered liquid is ensured.
To facilitate cooling of the crystallizer:
as a further improvement of the above technical scheme: the cooling pipeline is coiled on the inner wall of the crystallizer.
The beneficial effects of this improvement are: the coiled cooling pipeline can comprehensively and reliably dissipate heat of the crystallizer, and crystallization of the solution is guaranteed.
Drawings
Fig. 1 is a schematic diagram of an overall front view structure.
Fig. 2 is a schematic diagram of an overall top view structure.
FIG. 3 is a schematic view of the sectional structure of the mounting box and the water storage tank.
Fig. 4 is an enlarged schematic view of the structure at a in fig. 1.
In the figure: 1. a crystallizer; 11. a discharge port; 12. a discharge valve; 2. a speed reducing motor; 21. a stirring rod; 22. stirring the leaves; 23. an ultrasonic stirrer; 24. a feed pipe; 3. a mounting box; 31. a heat sink; 32. an exhaust fan; 33. a heat conductive plate; 34. a water storage tank; 35. a one-way valve; 4. a water pump; 41. a cooling pipe; 42. and (5) a return pipe.
Detailed Description
In order that those skilled in the art may better understand the technical solutions of the present utility model, the following detailed description of the present utility model with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present utility model.
As shown in figures 1-4, a large-crystal urea production device comprises a crystallizer 1 and a mounting box 3, wherein a discharge hole 11 and a discharge valve 12 are arranged below the crystallizer 1, a speed reducing motor 2 is arranged at the top of the crystallizer 1, a stirring rod 21 and a stirring blade 22 are connected below the speed reducing motor 2, a feeding pipe 24 is communicated with the top of the crystallizer 1, an ultrasonic stirrer 23 is arranged above the crystallizer 1, a mounting box 3 is arranged below the crystallizer 1, cooling fins 31 are integrally formed outside the mounting box 3, an exhaust fan 32 is arranged at the lower half part of the mounting box 3, a water storage tank 34 is arranged in the mounting box 3, the water storage tank 34 and the mounting box 3 are limited by a heat conducting plate 33, a one-way valve 35 is arranged at the top An Duichen of the mounting box 3, a water pump 4 is arranged above the mounting box 3, the front end of the water pump 4 is connected with a cooling pipeline 41, the other end of the cooling pipeline 41 is connected with a return pipe 42, the lower end of the return pipe 42 is connected with a water storage tank 34, in the crystallization process, a speed reducing motor 2 drives a stirring blade 22 to rotate through a stirring rod 21 to stir the solution, symmetrically distributed ultrasonic stirrers 23 comprehensively and reliably stir the solution, the crystallization of the solution can be effectively accelerated in the way, the crystallization efficiency is ensured, the stirring blade 22 and the crystallizer 1 form a rotary installation structure through the speed reducing motor 2, the speed reducing motor 2 drives the stirring blade 22 to rotate through the stirring rod 21 so as to stir the solution, four ultrasonic stirrers 23 symmetrically distributed about the central line of the crystallizer 1 can comprehensively and rapidly stir the solution in the crystallizer 1, the crystallization of solution is accelerated, the outside block of air extraction fan 32 installs the filter screen, and the filter screen can carry out comprehensive reliable filtration to the air that gets into install bin 3 and storage water tank 34 middle part, guarantees the cleanliness factor of air, air extraction fan 32 symmetric distribution is in the bottom of crystallizer 1, and symmetric distribution's air extraction fan 32 can make things convenient for the inside of air entering install bin 3 and storage water tank 34, equidistant through-hole has been seted up on the heat-conducting plate 33, and the air that the through-hole can conveniently get into dispel the heat to the heat-conducting plate 33, and then can make things convenient for the heat-conducting plate 33 to the heat dissipation of storage water tank 34, the filter cartridge is installed to the inside position that is close to back flow 42 of storage water tank 34, and the filter cartridge can be filtered the coolant liquid of backward flow, guarantees the cleanliness factor of filtrate, cooling pipe 41 coils on the inner wall of crystallizer 1, and cooling pipe 41 that coils can carry out comprehensive reliable heat dissipation to crystallizer 1, guarantees the crystallization of solution.
The working principle of the utility model is as follows: when the device is used, solution enters the crystallizer 1 through the feed pipe 24, the water pump 4 pumps the cooling liquid in the water storage tank 34 to the cooling pipeline 41, the cooling liquid flows back to the water storage tank 34 through the return pipe 42 after cooling the crystallizer 1 and the solution, the exhaust fan 32 pumps cold air into the middle part of the installation box 3 and the water storage tank 34, then the cold air is discharged through the one-way valve 35, the water storage tank 34 is cooled, the cooling effect of the device can be guaranteed by cooling the water storage tank 34 through the heat conducting plate 33 and the cooling fins 31, in the crystallization process, the speed reducing motor 2 drives the stirring blades 22 to rotate through the stirring rod 21 to stir the solution, the symmetrically distributed ultrasonic stirrers 23 stir the solution comprehensively and reliably, the crystallization of the solution can be effectively accelerated in such a way, the crystallization efficiency is guaranteed, and the crystallized solution can be discharged into the next procedure through the discharge valve 12 and the discharge port 11 to complete the crystallization.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. The foregoing is merely illustrative of the preferred embodiments of the utility model, and it is noted that there is virtually no limit to the specific structure which may be imposed by those skilled in the art without departing from the spirit of the utility model, and that modifications, adaptations, or variations of the foregoing features may be combined in a suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present utility model.
Claims (8)
1. The utility model provides a big crystal urea's apparatus for producing, includes crystallizer (1) and install bin (3), its characterized in that: the lower part of the crystallizer (1) is provided with a discharge hole (11) and a discharge valve (12), the top of the crystallizer (1) is provided with a gear motor (2), the lower part of the gear motor (2) is connected with a stirring rod (21) and a stirring blade (22), the top of the crystallizer (1) is communicated with a feed pipe (24), the upper part of the crystallizer (1) is provided with an ultrasonic stirrer (23), the installation box (3) is arranged below the crystallizer (1), the outer side of the installation box (3) is integrally provided with cooling fins (31), the utility model discloses a water storage tank, including installation case (3), cooling pipeline (41) are connected with back flow (42), and back flow (42) are connected with water storage tank (34), and back flow (42) lower extreme is connected with water storage tank (34), install check valve (35) in top An Duichen of installation case (3), water pump (4) are installed to the top of installation case (3), and the front end of water pump (4) is connected with cooling pipeline (41).
2. The apparatus for producing large crystal urea according to claim 1, wherein: a rotary installation structure is formed between the stirring blade (22) and the crystallizer (1) through a gear motor (2).
3. The apparatus for producing large crystal urea according to claim 1, wherein: the ultrasonic stirrer (23) is symmetrically arranged with respect to the central line of the crystallizer (1).
4. The apparatus for producing large crystal urea according to claim 1, wherein: the outside block of air extraction fan (32) is installed the filter screen.
5. The apparatus for producing large crystal urea according to claim 1, wherein: the exhaust fans (32) are symmetrically distributed at the bottom of the crystallizer (1).
6. The apparatus for producing large crystal urea according to claim 1, wherein: through holes are formed in the heat conducting plate (33) at equal intervals.
7. The apparatus for producing large crystal urea according to claim 1, wherein: a filter box is arranged in the water storage tank (34) at a position close to the return pipe (42).
8. The apparatus for producing large crystal urea according to claim 1, wherein: the cooling pipeline (41) is coiled on the inner wall of the crystallizer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322800901.6U CN221014573U (en) | 2023-10-19 | 2023-10-19 | Large crystal urea production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322800901.6U CN221014573U (en) | 2023-10-19 | 2023-10-19 | Large crystal urea production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221014573U true CN221014573U (en) | 2024-05-28 |
Family
ID=91135286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322800901.6U Active CN221014573U (en) | 2023-10-19 | 2023-10-19 | Large crystal urea production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221014573U (en) |
-
2023
- 2023-10-19 CN CN202322800901.6U patent/CN221014573U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |