CN204897422U - Ammonium chloride solution evaporation crystal system - Google Patents
Ammonium chloride solution evaporation crystal system Download PDFInfo
- Publication number
- CN204897422U CN204897422U CN201520656918.1U CN201520656918U CN204897422U CN 204897422 U CN204897422 U CN 204897422U CN 201520656918 U CN201520656918 U CN 201520656918U CN 204897422 U CN204897422 U CN 204897422U
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- China
- Prior art keywords
- pipeline
- pump
- separator
- preheater
- ammonium chloride
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- 238000001704 evaporation Methods 0.000 title claims abstract description 36
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 235000019270 ammonium chloride Nutrition 0.000 title claims abstract description 31
- QDHHCQZDFGDHMP-UHFFFAOYSA-N monochloramine Chemical compound ClN QDHHCQZDFGDHMP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000002425 crystallisation Methods 0.000 claims abstract description 45
- 230000005712 crystallization Effects 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 26
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 239000000498 cooling water Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 51
- 239000006200 vaporizer Substances 0.000 claims description 27
- 238000007599 discharging Methods 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 10
- 239000012153 distilled water Substances 0.000 claims description 9
- 239000012452 mother liquor Substances 0.000 claims description 8
- 230000000630 rising Effects 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 241000893018 Armeria Species 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 5
- 150000003863 ammonium salts Chemical class 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000007701 flash-distillation Methods 0.000 description 3
- 230000001965 increased Effects 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229940035295 Ting Drugs 0.000 description 1
- CVTZKFWZDBJAHE-UHFFFAOYSA-N [N].N Chemical compound [N].N CVTZKFWZDBJAHE-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- Y02P20/10—Process efficiency
Abstract
The utility model discloses an ammonium chloride solution evaporation crystal system, it includes preheating device, evaporative concentration device, evaporation crystallization device and crystal separation device. Preheating device includes material buffer tank and pre -heater, and the material buffer tank is linked together through pipeline and pre -heater, installs the charge pump on the pipeline between material buffer tank and pre -heater, the evaporative concentration device includes first circulating pump, commentaries on classics material pump, evaporimeter, vapor compressor and cooling water pitcher, and the evaporimeter passes through the pipeline intercommunication with first circulating pump and forms closed -loop, and the steam outlet of evaporimeter passes through pipe connection vapor compressor. The all self -loopas of crossing between heat exchanger and the separator of this department realize heating steam circulation recycle to reduce cost, the energy has been practiced thrift.
Description
Technical field
The utility model belongs to technical field of chemical, relates to a kind of condensing crystal system of solution, is specifically related to a kind of ammonium chloride solution evaporation and crystallization system.
Background technology
Ammonium chloride solution crystallization adopts evaporating and concentrating process usually, and traditional technology steam consumption is high.In recent years since, because of steam price continuous rise, the high energy gamma source cost of traditional evaporation technology makes vast enterprise increased pressure, can't bear the heavy load.Traditional chlorinated ammonium solution crystal system, easily causes system stability poor because entering virgin material.In order to reduce traditional chlorinated ammonium solution crystallization cost, enterprise attempts introducing new evaporation technology, but the problem of novel evaporation technology existence and stability difference again.
Utility model content
In order to overcome the technological deficiency of traditional chlorinated ammonium solution crystallization processes, realize reducing energy consumption, cost-saving object, the utility model provides a kind of ammonium chloride solution evaporation and crystallization system.This novel system instead of traditional steam-heated evaporation and crystallization mode, for ammonium chloride solution treating processes reduce costs, save energy opens a new way.
A kind of ammonium chloride solution evaporation and crystallization system, comprises primary heater unit, evaporation concentration device, evaporated crystallization device and Crystallization Separation device.
Described primary heater unit comprises material buffer tank and preheater, and material buffer tank is connected with preheater by pipeline, and fresh feed pump installed by the pipeline between material buffer tank and preheater.
Described evaporation concentration device comprises the first recycle pump, transfering material pump, vaporizer, vapour compressor and chilled water tank, vaporizer and the first recycle pump form loop line by pipeline communication, the vapour outlet of vaporizer connects vapour compressor by pipeline, vapour compressor is connected by pipeline with the steam inlet of vaporizer, the condensation-water drain of vaporizer is by pipeline communication chilled water tank, and vaporizer passes through the second recycle pump of transfering material pump and pipeline communication evaporated crystallization device.
Described evaporated crystallization device comprises interchanger, the second recycle pump, separator, vapour compressor and chilled water tank, separator and interchanger form loop line by pipeline communication, second recycle pump is arranged on the loop line that separator and interchanger formed, the vapour outlet of separator connects vapour compressor by pipeline, vapour compressor is connected by pipeline with the steam inlet of interchanger, and the condensation-water drain of interchanger is by pipeline communication chilled water tank.
Described Crystallization Separation device comprises discharging pump, crystallizer and centrifuge apparatus, and the feed end of discharging pump is communicated with the discharge end of separator, and the discharge end of discharging pump connects crystallizer crystallizer and centrifuge apparatus successively.
Preferred as ammonium chloride solution evaporation and crystallization system, described chilled water tank is connected with preheater by pipeline, distilled water pump installed by pipeline between chilled water tank and preheater, the feed-water end of distilled water pump connects the cooling water outlet of chilled water tank by pipeline, the water side of distilled water pump connects preheater by pipeline.
Preferred as ammonium chloride solution evaporation and crystallization system, described centrifuge apparatus connects separator by pipeline, the pipeline between centrifuge apparatus and separator is installed mother liquor pump.
Preferred as ammonium chloride solution evaporation and crystallization system, described preheater is provided with condensation-water drain, and condensation-water drain is connected with the rising pipe for discharging water of condensation.
Compared with traditional chlorinated ammonium solution crystallizer, the beneficial effects of the utility model or advantage are mainly reflected in:
(1) ammonium chloride evaporation and crystallization system described in the utility model instead of traditional steam-heated evaporation and crystallization mode, adopt the secondary steam that compressor compresses crystallizer gives off, use the secondary steam after compression as heating steam, and the circulation of equipment self is achieved by arranging loop, accomplish without the need to raw steam heating, without the need to condensing equipment, only need a small amount of electric energy just can reach the effect of good evaporation, thus be reduce costs in ammonium chloride solution treating processes, save energy opens a new way.
(2) evaporation and crystallization system of ammonium chloride described in the utility model, is divided into evaporation concentration and evaporative crystallization two benches by split by evaporative process, improves stable equipment operation, is conducive to the automatic control of equipment.
Below with reference to drawings and Examples, the utility model is elaborated further.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of ammonium chloride solution evaporation and crystallization system.
Description of reference numerals: 1, material buffer tank; 2, fresh feed pump; 3, preheater; 4, vaporizer; 5, the first recycle pump; 6, transfering material pump; 7, the second recycle pump; 8, interchanger; 9, separator; 10, vapour compressor; 11, chilled water tank; 12, distilled water pump; 13, discharging pump; 14, crystallizer; 15, centrifuge apparatus; 16, mother liquor pump.
Embodiment
As shown in Figure 1, this gives a kind of evaporative crystallization (or being called condensing crystal) system of ammonium chloride solution, it comprises primary heater unit, evaporation concentration device, evaporated crystallization device and Crystallization Separation device.
Described primary heater unit comprises material buffer tank 1, preheater 3, and material buffer tank 1 is connected by one section of carrier pipe with preheater 3, described carrier pipe is provided with fresh feed pump 2.
Described evaporation concentration device comprises the first recycle pump 5, transfering material pump 6, vaporizer 4, vapour compressor 10 and chilled water tank 11.The exit end pipeline of described first recycle pump 5 is connected with the discharge end of aforementioned preheater 3.Vaporizer 4 and the first recycle pump 5 are connected to form loop line by pipeline, and material isolates concentrated solution by vaporizer 4 and the first recycle pump 5 circular treatment, and concentrated solution is circulated between the first recycle pump 5 and vaporizer 4 by loop line.Described vaporizer 4 bottom concentrated solution is turned material mouth and is connected with evaporated crystallization device by a transfering material pump 6 and pipeline.The vapour outlet of described vaporizer 4 connects the inlet mouth of vapour compressor 10 by one section of pneumatic tube, one of air outlet of vapour compressor 10 is communicated with vaporizer 4 top steam inlet, and the condensation-water drain of vaporizer 4 connects chilled water tank 11 by hydraulic pipe.
Described evaporated crystallization device comprises interchanger 8, second recycle pump 7, separator 9, vapour compressor 10 and chilled water tank 11.Second recycle pump 7 entrance of described evaporated crystallization device is connected with described evaporation concentration device by pipeline and transfering material pump 6.Described separator 9 and interchanger 8 are connected by pipeline and form loop line, described loop line is provided with the second recycle pump 7, concentrated solution after separator 9 is separated is entered into separator 9 again after being entered by the second recycle pump 7 in interchanger 8 and evaporating and isolates concentrated solution, and concentrated solution is circulated between interchanger 8 and separator 9 by loop line.The vapour outlet of described separator 9 connects the inlet mouth of vapour compressor 10 by one section of pneumatic tube, one of air outlet of vapour compressor 10 is communicated with interchanger 8 steam inlet, and the condensation-water drain of interchanger 8 connects chilled water tank 11 by pipeline.
Described Crystallization Separation device comprises crystallizer 14, centrifuge apparatus 15, and crystallizer 14 and centrifuge apparatus 15 are connected to the discharge end of separator 9 in turn by a discharging pump 13.
Adopt the technique of the system condensing crystal ammonium chloride described in the present embodiment as follows:
Temperature in material buffer tank 1 is room temperature, and ammonium chloride stoste pumps into preheater 3 through fresh feed pump 2 and produces heat exchange with water coolant in preheater 3, and after preheater 3, temperature rises, ammonium chloride solution after preheating enters into vaporizer 4, and it is concentrated to be circulated in vaporizer 4 by the first recycle pump 5, with heating steam heat exchange after, the ammonium chloride solution absorbing heat enters flash distillation in vaporizer 4, and isolate secondary steam and concentrated solution, secondary steam enters vapour compressor 10 from vaporizer 4 vapour outlet, and after the adiabatic compression of vapour compressor 10, temperature and pressure gets a promotion, secondary steam after increasing temperature and pressure enters vaporizer 4 and ammonium chloride solution heat exchange as heating steam, is condensed into water, and enters chilled water tank 11 after heat release, the ammonium chloride solution absorbing heat enters flash distillation in vaporizer 4 and isolates secondary steam and concentrated solution, concentrated solution is under the effect of transfering material pump 6, the entrance of the second recycle pump 7 in evaporated crystallization device is entered by pipeline, circulated in interchanger 8 and separator 9 by the second recycle pump 7, with heating steam heat exchange in interchanger 8, the ammonium chloride solution absorbing heat enters flash distillation in separator 9, and isolate secondary steam and concentrated solution, secondary steam enters vapour compressor 10 from separator 9 vapour outlet, after the adiabatic compression of vapour compressor 10, temperature and pressure gets a promotion, secondary steam after increasing temperature and pressure enters interchanger 8 and ammonium chloride solution heat exchange as heating steam, is condensed into water, and enters chilled water tank 11 after heat release, pump into crystallisation by cooling in crystallizer 14 through discharging pump 13 when ammonium chloride concentrated solution concentration reaches set(ting)value in separator 9, then process through crystallizer 14 and centrifuge apparatus 15, isolate ammonia chloride crystal, can reuse or qualified discharge from the last water coolant out of preheater.
As a kind of optimal way of the present embodiment, described chilled water tank 11 is provided with cooling water outlet, and the feed-water end of a distilled water pump 12 is connected to the cooling water outlet of chilled water tank 11 by hydraulic pipe, and the water side of distilled water pump 12 is connected on preheater 3.Because water out also has certain temperature from chilled water tank 11, if directly discharge can cause the waste of thermal source, the water in chilled water tank 11 is incorporated in preheater 3, as the thermal source of preheater 3, thus the object making full use of heat can be reached.
As a kind of optimal way of the present embodiment, described centrifuge apparatus 15 and be provided with loop between separator 9, loop is provided with mother liquor pump 16, the mother liquor obtained after whizzer through mother liquor pump 16 be sent in separator 9 circulate.Mother liquor after separation is saturated ammonium chloride solution, direct discharge may cause ammonia nitrogen recovery incomplete, discharge after stain environment, therefore after designing second servo loop, mother liquor enters into evaporated crystallization device by second servo loop, then continues concentrated in evaporated crystallization device, to reach after predetermined concentration Crystallization Separation again, circulation like this, finally realizes the recovery completely of ammonium chloride.
As a kind of optimal way of the present embodiment, the condensation-water drain of described preheater 3 is connected with rising pipe.The water of condensation eventually passed after preheater hot exchange is discharged through rising pipe.
The ammonium chloride solution evaporation and crystallization system that the present embodiment relates to is by the self-circulation between interchanger and separator, adopt the secondary steam that compressor compresses crystal separator gives off, the secondary steam after compression is used to use as heating steam, realize the object of evaporation concentration, thus save energy, reduce costs, enhance productivity.By sectional type evaporative process, evaporative process is divided into evaporation concentration and evaporative crystallization again, guarantees efficient stable in system cloud gray model.
The utility model is done above in conjunction with the embodiments and further described, but the utility model is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, can also make a variety of changes under the prerequisite not departing from the utility model aim.
Claims (4)
1. an ammonium chloride solution evaporation and crystallization system, is characterized in that, comprises primary heater unit, evaporation concentration device, evaporated crystallization device and Crystallization Separation device;
Described primary heater unit comprises material buffer tank and preheater, and material buffer tank is connected with preheater by pipeline, and fresh feed pump installed by the pipeline between material buffer tank and preheater;
Described evaporation concentration device comprises the first recycle pump, transfering material pump, vaporizer, vapour compressor and chilled water tank, vaporizer and the first recycle pump form loop line by pipeline communication, the vapour outlet of vaporizer connects vapour compressor by pipeline, vapour compressor is connected by pipeline with the steam inlet of vaporizer, the condensation-water drain of vaporizer is by pipeline communication chilled water tank, and vaporizer passes through the second recycle pump of transfering material pump and pipeline communication evaporated crystallization device;
Described evaporated crystallization device comprises interchanger, the second recycle pump, separator, vapour compressor and chilled water tank, separator and interchanger form loop line by pipeline communication, second recycle pump is arranged on the loop line that separator and interchanger formed, the vapour outlet of separator connects vapour compressor by pipeline, vapour compressor is connected by pipeline with the steam inlet of interchanger, and the condensation-water drain of interchanger is by pipeline communication chilled water tank;
Described Crystallization Separation device comprises discharging pump, crystallizer and centrifuge apparatus, and the feed end of discharging pump is communicated with the discharge end of separator, and the discharge end of discharging pump connects crystallizer crystallizer and centrifuge apparatus successively.
2. ammonium chloride solution evaporation and crystallization system according to claim 1, it is characterized in that, described chilled water tank is connected with preheater by pipeline, distilled water pump installed by pipeline between chilled water tank and preheater, the feed-water end of distilled water pump connects the cooling water outlet of chilled water tank by pipeline, the water side of distilled water pump connects preheater by pipeline.
3. ammonium chloride solution evaporation and crystallization system according to claim 1, is characterized in that, described centrifuge apparatus connects separator by pipeline, the pipeline between centrifuge apparatus and separator is installed mother liquor pump.
4. ammonium chloride solution evaporation and crystallization system according to claim 1 and 2, is characterized in that, described preheater is provided with condensation-water drain, and condensation-water drain is connected with the rising pipe for discharging water of condensation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520656918.1U CN204897422U (en) | 2015-08-28 | 2015-08-28 | Ammonium chloride solution evaporation crystal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520656918.1U CN204897422U (en) | 2015-08-28 | 2015-08-28 | Ammonium chloride solution evaporation crystal system |
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| Publication Number | Publication Date |
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| CN204897422U true CN204897422U (en) | 2015-12-23 |
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| CN201520656918.1U Active CN204897422U (en) | 2015-08-28 | 2015-08-28 | Ammonium chloride solution evaporation crystal system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105879426A (en) * | 2016-05-31 | 2016-08-24 | 浙江泰康蒸发器有限公司 | MVR continuous evaporative crystallization system |
| CN106277117A (en) * | 2016-08-27 | 2017-01-04 | 闫三朋 | The ammonium chloride waste-water independent low temperature double-effect evaporation method and apparatus of double adverse current |
| CN107185267A (en) * | 2017-07-18 | 2017-09-22 | 汇森生物设备镇江有限公司 | A kind of concentrator in Chinese medicine preparation process |
| CN109381878A (en) * | 2018-12-21 | 2019-02-26 | 北京师范大学 | A kind of water-saving rotary evaporation enrichment facility of energy conservation and environmental protection |
| CN109381884A (en) * | 2018-12-21 | 2019-02-26 | 北京师范大学 | A kind of Intelligent water-saving type rotary evaporation enrichment facility |
| CN109437238A (en) * | 2018-12-29 | 2019-03-08 | 广州市迈源科技有限公司 | A kind of ammonium chloride solution processing system and ammonium chloride solution processing method |
| CN111302419A (en) * | 2020-01-06 | 2020-06-19 | 中伟新材料股份有限公司 | Process for solving problem of high evaporation boiling point of ammonia chloride by utilizing MVR |
-
2015
- 2015-08-28 CN CN201520656918.1U patent/CN204897422U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105879426A (en) * | 2016-05-31 | 2016-08-24 | 浙江泰康蒸发器有限公司 | MVR continuous evaporative crystallization system |
| CN106277117A (en) * | 2016-08-27 | 2017-01-04 | 闫三朋 | The ammonium chloride waste-water independent low temperature double-effect evaporation method and apparatus of double adverse current |
| CN107185267A (en) * | 2017-07-18 | 2017-09-22 | 汇森生物设备镇江有限公司 | A kind of concentrator in Chinese medicine preparation process |
| CN109381878A (en) * | 2018-12-21 | 2019-02-26 | 北京师范大学 | A kind of water-saving rotary evaporation enrichment facility of energy conservation and environmental protection |
| CN109381884A (en) * | 2018-12-21 | 2019-02-26 | 北京师范大学 | A kind of Intelligent water-saving type rotary evaporation enrichment facility |
| CN109437238A (en) * | 2018-12-29 | 2019-03-08 | 广州市迈源科技有限公司 | A kind of ammonium chloride solution processing system and ammonium chloride solution processing method |
| CN111302419A (en) * | 2020-01-06 | 2020-06-19 | 中伟新材料股份有限公司 | Process for solving problem of high evaporation boiling point of ammonia chloride by utilizing MVR |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |