CN207493260U - A kind of crystallizer for nitrate production - Google Patents
A kind of crystallizer for nitrate production Download PDFInfo
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- CN207493260U CN207493260U CN201721338992.4U CN201721338992U CN207493260U CN 207493260 U CN207493260 U CN 207493260U CN 201721338992 U CN201721338992 U CN 201721338992U CN 207493260 U CN207493260 U CN 207493260U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
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Abstract
A kind of crystallizer for nitrate production, including level-one crude crystalline device, level-one crude crystalline device circulating pump, level-one crude crystalline device cooler, two level crude crystalline device, two level crude crystalline device circulating pump, two level crude crystalline device cooler, three-level crude crystalline device, three-level crude crystalline device circulating pump, three-level crude crystalline device cooler；Potassium nitrate solution is under cycle pumping actions at different levels, the circulating cooling between coolers at different levels and crystallizer；The discharging of crystallizers at different levels enters subordinate's crystallizer using potential difference gravity flow, and potassium nitrate crystal is precipitated in last and crystallizer.Three-level crystallizer is applied to the preparation field of nitrate crystallization by the utility model, and compared with prior art, which can realize continuous production prepared by potassium nitrite and potassium nitrate concentrate, with easy to operate, control is stablized, securely and reliably, the advantages of energy utilization rate is high；The system three-level CGS Continuous Grain Silicon, is more energy-saving and environmentally friendly than periodic crystallisation；With good economic value.
Description
Technical field
The utility model belongs to crystallizer field, more particularly, to a kind of crystallizer for nitrate production.
Background technology
At present in crystallization nitrate production, mostly using single stage crystallizer, which exists for the preparation of potassium nitrate crystal
Main problem it is as follows：
(1) intermittently operated needs greater number of crystallizer.
(2) manually operation is completed entirely for the control of crystallization process, and execute-in-place frequency is high, and the degree of automation is low.
(3) consumption is high, and energy utilization rate is low.
To sum up, the equipment that prepared by the crystallization of existing nitrate is lacked there are intermittently operated, low production efficiency, technical merit are low etc.
Point.
Utility model content
Problem to be solved in the utility model is against the above deficiency, to provide a kind of three-level continuous crystallizing system, be suitable for
But it is not limited to the preparation of nitrate crystallization.
In order to achieve the above objectives, the technical solution of the utility model is realized in：
A kind of crystallizer for nitrate production, including level-one crude crystalline device, level-one crude crystalline device circulating pump, one
Grade crude crystalline device cooler, two level crude crystalline device, two level crude crystalline device circulating pump, two level crude crystalline device cooler,
Three-level crude crystalline device, three-level crude crystalline device circulating pump, three-level crude crystalline device cooler；
Potassium nitrate solution is circulated in level-one crude crystalline device cooler and level-one is thick via level-one crude crystalline device circulating pump
Between product crystallizer, potassium nitrate solution is cooled down by level-one crude crystalline device cooler during cycle；Level-one crude product
The discharging of crystallizer enters two level crude crystalline device using potential difference gravity flow；
Potassium nitrate feed liquid after first degree crystalline is circulated in two level crude crystalline via two level crude crystalline device circulating pump
Between device cooler and two level crude crystalline device, during cycle by two level crude crystalline device cooler to potassium nitrate solution into
Row cooling；The discharging of two level crude crystalline device enters three-level crude crystalline device using potential difference gravity flow；
Potassium nitrate feed liquid after secondary crystallization is circulated in three-level crude crystalline via three-level crude crystalline device circulating pump
Between device cooler and three-level crude crystalline device, during cycle by three-level crude crystalline device cooler to potassium nitrate solution into
Row cooling；A large amount of potassium nitrate crystals are precipitated at this time, and the discharging of three-level crude crystalline device is mainly potassium nitrate crystal.
Overflow port is equipped on the level-one crude crystalline device, two level crude crystalline device and three-level crude crystalline device.
Blow valve port is equipped on the level-one crude crystalline device, two level crude crystalline device and three-level crude crystalline device.
Butterworth Hatch is equipped on the level-one crude crystalline device, two level crude crystalline device and three-level crude crystalline device.
There are one up for the discharge port of the level-one crude crystalline device, two level crude crystalline device and three-level crude crystalline device
Inclined angle.
Further including can realize and automatically control and quantity-produced accessory instrument control system.
The level-one crude crystalline device cooler, two level crude crystalline device cooler and three-level crude crystalline device cooler are equal
For shell and tube forced-circulation cooler.
The level-one crude crystalline device cooler, two level crude crystalline device cooler and three-level crude crystalline device cooler are equal
Using freezing water cooling.
Relative to the prior art, a kind of crystallizer for nitrate production described in the utility model has following excellent
Gesture：
Due to the adoption of the above technical scheme：
It, compared with prior art, should 1. three-level crystallizer is applied to the preparation field of nitrate crystallization by the utility model
System can realize continuous production prepared by potassium nitrite and potassium nitrate concentrate, have easy to operate, control stabilization, safety
Reliably, the advantages of energy utilization rate is high；The system three-level CGS Continuous Grain Silicon, is more energy-saving and environmentally friendly than periodic crystallisation；With very
Good economic value.
2. the setting of overflow port, extra material can be flowed out crystallizer, prevent caused by overfill is to equipment damage or
Failure improves safety and reliability.
3. the setting of blow valve port and Butterworth Hatch, convenient to carry out cleaning maintenance to equipment and meet the crystallization of different material, carry
The service life of high equipment and raising adaptability.
4. there are one up inclined angles, while being to ensure liquid level and yield, discharging for crystallizer discharge port
It can be continuous.
Description of the drawings
The attached drawing for forming the part of the utility model is used to provide a further understanding of the present invention, this practicality is new
The illustrative embodiments and their description of type do not form the improper restriction to the utility model for explaining the utility model.
Fig. 1 is the utility model structure diagram；
In figure, 1- level-one crude crystalline devices；2- level-one crude crystalline device circulating pumps；3- level-one crude crystalline device coolers；
4- two level crude crystalline devices；5- two level crude crystalline device circulating pumps；6- two level crude crystalline device coolers；7- three-level crude crystallines
Device；8- three-level crude crystalline device circulating pumps；9- two level crude crystalline device coolers；10- overflow ports；11- blow valve ports；12- is cleaned
Mouthful；13- feed inlets；14- discharge ports.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the utility model can
To be combined with each other.
In the description of the present invention, it is to be appreciated that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instructions such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description rather than instruction
Or imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For the limitation to the utility model.In addition, term " first ", " second " etc. are only used for description purpose, and it is not intended that instruction
Or imply relative importance or the implicit quantity for indicating indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can express or implicitly include one or more this feature.It is in the description of the present invention, unless another
It is described, " multiple " are meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the utility model.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, a kind of crystallizer for nitrate production, mainly includes level-one crude crystalline device 1, level-one crude product
Crystallizer circulating pump 2, level-one crude crystalline device cooler 3, two level crude crystalline device 4, two level crude crystalline device circulating pump 5, two
Grade crude crystalline device cooler 6, three-level crude crystalline device 7, three-level crude crystalline device circulating pump 8 and the cooling of two level crude crystalline device
Device 9 further includes attached blind controller system (not shown).Level-one crude crystalline device 1, two level crude crystalline device 4 and three
Overflow port 10, blow valve port 11 and Butterworth Hatch 12 are equipped on grade crude crystalline device 7.
Potassium nitrate solution is circulated in level-one crude crystalline device cooler 3 and level-one via level-one crude crystalline device circulating pump 2
Between crude crystalline device 1, and using freezing water cooling.The discharging of level-one crude crystalline device 1 is thick into two level using potential difference gravity flow
Product crystallizer 4；
Potassium nitrate feed liquid after first degree crystalline is circulated in two level crude product knot via 4 circulating pump 5 of two level crude crystalline device
Between brilliant device cooler 6 and two level crude crystalline device 4, and using freezing water cooling.The discharging of two level crude crystalline device 4 utilizes position
Difference gravity flow enters three-level crude crystalline device 7；
Potassium nitrate feed liquid after secondary crystallization is circulated in three-level crude product knot via 7 circulating pump of three-level crude crystalline device
Between brilliant device cooler 9 and three-level crude crystalline device 7, and using freezing water cooling.A large amount of potassium nitrate crystals are precipitated at this time, three-level
The discharging of crude crystalline device 7 is mainly potassium nitrate crystal, is sent to follow-up workshop section.
Per in level-one crystallization process, feed liquid recycles between crude crystalline device cooler and crude crystalline device so that knot
Brilliant process is more fully and continuous.
It uses crystallizer circulating pump and is recycled with ensureing feed liquid between crude crystalline device cooler and crude crystalline device.
There are one up inclined angles for the discharge port of three-level crude crystalline device 7, recycle and tilt potential difference down and flow automatically
It is such to can be designed so that potassium nitrate crystals efficiently continuously export into next stage process.
It illustrates by taking the preparation of potassium nitrate crystal as an example, enters after the double decomposition feed liquid after filtering is carried out heat exchange precooling
Feed temperature is down to 42~45 DEG C by level-one crude crystalline device 1, and at this moment crystallization initially forms.Feed liquid enters two level crude crystalline
Feed temperature with chilled water circulating cooling, is down to 30~32 DEG C, subsequently into three-level crude crystalline device 7, uses chilled water by device 4
Feed temperature is down to 20~23 DEG C by circulating cooling, and at this moment a large amount of potassium nitrate crystals are precipitated.By baiting valve by solidliquid mixture
It is put into follow-up workshop section's crude product thickener, upper clear supernate flows into transfer tank.
The system can be used for the production of annual production capacity 4~80,000 ton nitrate crystallization.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (8)
1. a kind of crystallizer for nitrate production, it is characterised in that：Including level-one crude crystalline device, level-one crude crystalline device
Circulating pump, level-one crude crystalline device cooler, two level crude crystalline device, two level crude crystalline device circulating pump, two level crude crystalline
Device cooler, three-level crude crystalline device, three-level crude crystalline device circulating pump, three-level crude crystalline device cooler；
Potassium nitrate solution is circulated in level-one crude crystalline device cooler and level-one crude product knot via level-one crude crystalline device circulating pump
Between brilliant device, potassium nitrate solution is cooled down by level-one crude crystalline device cooler during cycle；Level-one crude crystalline
The discharging of device enters two level crude crystalline device using potential difference gravity flow；
It is cold to be circulated in two level crude crystalline device via two level crude crystalline device circulating pump for potassium nitrate feed liquid after first degree crystalline
But it is cold to potassium nitrate solution progress by two level crude crystalline device cooler during cycle between device and two level crude crystalline device
But；The discharging of two level crude crystalline device enters three-level crude crystalline device using potential difference gravity flow；
It is cold to be circulated in three-level crude crystalline device via three-level crude crystalline device circulating pump for potassium nitrate feed liquid after secondary crystallization
But it is cold to potassium nitrate solution progress by three-level crude crystalline device cooler during cycle between device and three-level crude crystalline device
But；A large amount of potassium nitrate crystals are precipitated at this time, and the discharging of three-level crude crystalline device is mainly potassium nitrate crystal.
2. a kind of crystallizer for nitrate production according to claim 1, it is characterised in that：The level-one crude product knot
Overflow port is equipped on brilliant device, two level crude crystalline device and three-level crude crystalline device.
3. a kind of crystallizer for nitrate production according to claim 1, it is characterised in that：The level-one crude product knot
Blow valve port is equipped on brilliant device, two level crude crystalline device and three-level crude crystalline device.
4. a kind of crystallizer for nitrate production according to claim 1, it is characterised in that：The level-one crude product knot
Butterworth Hatch is equipped on brilliant device, two level crude crystalline device and three-level crude crystalline device.
5. a kind of crystallizer for nitrate production according to claim 1, it is characterised in that：The level-one crude product knot
There are one up inclined angles for the discharge port of brilliant device, two level crude crystalline device and three-level crude crystalline device.
6. a kind of crystallizer for nitrate production according to claim 1, it is characterised in that：Further including can realize
It automatically controls and quantity-produced accessory instrument control system.
7. a kind of crystallizer for nitrate production according to claim 1, it is characterised in that：The level-one crude product knot
Brilliant device cooler, two level crude crystalline device cooler and three-level crude crystalline device cooler are shell and tube compulsory circulative cooling
Device.
8. a kind of crystallizer for nitrate production according to claim 1, it is characterised in that：The level-one crude product knot
Brilliant device cooler, two level crude crystalline device cooler and three-level crude crystalline device cooler are using freezing water cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721338992.4U CN207493260U (en) | 2017-10-18 | 2017-10-18 | A kind of crystallizer for nitrate production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721338992.4U CN207493260U (en) | 2017-10-18 | 2017-10-18 | A kind of crystallizer for nitrate production |
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| Publication Number | Publication Date |
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| CN207493260U true CN207493260U (en) | 2018-06-15 |
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| CN201721338992.4U Active CN207493260U (en) | 2017-10-18 | 2017-10-18 | A kind of crystallizer for nitrate production |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110368712A (en) * | 2019-08-07 | 2019-10-25 | 南京师范大学 | A kind of device and method of continuous three sections of two-stages temperature gradient formula crystal refining durol |
| WO2021248774A1 (en) * | 2020-06-12 | 2021-12-16 | 金钾科技有限公司 | Circulating type potassium nitrate crystallization device |
| CN114797156A (en) * | 2022-05-13 | 2022-07-29 | 湖南金源新材料循环利用有限公司 | Continuous cooling crystallization method |
-
2017
- 2017-10-18 CN CN201721338992.4U patent/CN207493260U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110368712A (en) * | 2019-08-07 | 2019-10-25 | 南京师范大学 | A kind of device and method of continuous three sections of two-stages temperature gradient formula crystal refining durol |
| WO2021248774A1 (en) * | 2020-06-12 | 2021-12-16 | 金钾科技有限公司 | Circulating type potassium nitrate crystallization device |
| CN114797156A (en) * | 2022-05-13 | 2022-07-29 | 湖南金源新材料循环利用有限公司 | Continuous cooling crystallization method |
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