CN203428931U - Concentration and crystallization equipment for ammonium chloride - Google Patents
Concentration and crystallization equipment for ammonium chloride Download PDFInfo
- Publication number
- CN203428931U CN203428931U CN201320444170.XU CN201320444170U CN203428931U CN 203428931 U CN203428931 U CN 203428931U CN 201320444170 U CN201320444170 U CN 201320444170U CN 203428931 U CN203428931 U CN 203428931U
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- Prior art keywords
- separator
- heat exchanger
- main heat
- ammonium chloride
- preheater
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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
- Y02P20/10—Process efficiency
Abstract
The utility model discloses concentration and crystallization equipment for ammonium chloride. The concentration and crystallization equipment comprises a preheating device, an evaporation device and a crystallization separation device. According to the concentration and crystallization equipment for the ammonium chloride, disclosed by the utility model, a conventional steam heating type evaporation crystallization mode is replaced, secondary steam which is discharged from a crystallizer is compressed through a compressor, the self circulation of the equipment is realized by using the compressed secondary steam as heating steam and setting a loop, and a good evaporation effect can be achieved with a small amount of electric energy without steam heating and condensation equipment, so that a new way is created for reducing the cost and saving energy sources in a treatment process of an ammonium chloride solution.
Description
Technical field
The utility model relates to the condensing crystal technical field of solution, is specifically related to a kind of condensing crystal equipment of ammonium chloride.
Background technology
The trade effluent of containing ammonium chloride is quite serious to the pollution of environment, and the processing of trade effluent is a very large difficult problem.Adopt evaporating and concentrating process, steam consumption is high, and ammonium chloride solution is very serious to the corrosion of material.Based on this, adopt evaporation technology to evaporate, equipment material is selected corrosion resistant titanium material, thereby has caused the raising of equipment cost.Wherein, the form evaporator of multiple-effect evaporation adopts comparatively general.But in recent years,, along with the rise at full speed of steam price, the energy consumption of this kind of evaporative process also makes vast business burden sharply increase.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of condensing crystal equipment of ammonium chloride, by the self-circulation between main heat exchanger and separator, the secondary steam that adopts compressor compresses crystal separator to give off, is used the secondary steam after compression to use as heating steam, realizes the object of evaporation concentration, thereby save energy, reduces costs, and enhances productivity.
For addressing the above problem, the technical scheme that the utility model adopts is as follows:
A condensing crystal equipment, it comprises primary heater unit, evaporation unit and Crystallization Separation device;
Described primary heater unit comprises dash adjustment tank, preheater, and dash adjustment tank is connected by one section of carrier pipe with preheater, on described carrier pipe, fresh feed pump is installed; The condensation-water drain of described preheater connects an ion-exchanger by one section of hydraulic pipe;
Described evaporation unit comprises main heat exchanger, separator, vapour compressor and chilled water tank; The feed end of described main heat exchanger connects the discharge end of preheater; Separator is connected with main heat exchanger and forms loop line, on described loop line, be provided with recycle pump, concentrated solution after separator separation is entered in main heat exchanger and to be entered into separator after heat exchange again and evaporate and isolate concentrated solution by recycle pump, and concentrated solution circulates between main heat exchanger and separator by loop line; The vapour outlet of described separator connects the inlet mouth of vapour compressor by one section of pneumatic tube, the air outlet of vapour compressor is communicated with main heat exchanger, and the condensation-water drain of main heat exchanger connects chilled water tank by hydraulic pipe;
Described Crystallization Separation device comprises cooling crystallizer, vacuum filtration device, and cooling crystallizer and vacuum filtration device are connected to the discharge end of separator in turn by a discharging pump.
The utility model can also pass through following scheme implementation:
As a kind of preferred scheme that has of the present utility model, described chilled water tank is provided with cooling water outlet, and the feed-water end of a distilled water pump is connected to the cooling water outlet of chilled water tank by hydraulic pipe, and the water side of distilled water pump is connected on preheater.
As a kind of preferred scheme that has of the present utility model, described vacuum filtration device and separator between be provided with second servo loop, second servo loop is provided with mother liquor pump, the mother liquor that obtains after vacuum filtration is pumped in separator and circulates through mother liquor.
Compared to existing technology, the beneficial effects of the utility model are: the condensing crystal equipment replacement of ammonium chloride described in the utility model traditional steam-heated evaporation and crystallization mode, the secondary steam that adopts compressor compresses crystallizer to give off, secondary steam after use compression is as heating steam, and by being set, loop realized the circulation of equipment self, accomplished without raw steam heating, without condensing equipment, only need a small amount of electric energy just can reach the effect of good evaporation, thereby reduce costs in ammonium chloride solution treating processes, save energy has been opened up a new way.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model preferred implementation.
Embodiment
As shown in Figure 1, the condensing crystal equipment of ammonium chloride device ammonium chloride described in the utility model, it comprises primary heater unit, evaporation unit and Crystallization Separation device;
Described primary heater unit comprises dash adjustment tank 1, preheater 3, and dash adjustment tank 1 is connected by one section of carrier pipe with preheater 3, and fresh feed pump 2 is installed on described carrier pipe; The condensation-water drain of described preheater 3 connects an ion-exchanger 10 by one section of hydraulic pipe;
Described evaporation unit comprises main heat exchanger 4, separator 5, vapour compressor 6 and chilled water tank 8; The feed end of described main heat exchanger 4 connects the discharge end of preheater 3; Separator 5 is connected with main heat exchanger 4 and forms loop line, on described loop line, be provided with recycle pump 7, concentrated solution after separator 5 separation is entered in main heat exchanger 4 and to be entered into separator 5 after evaporation again and isolate concentrated solution by recycle pump 7, and concentrated solution circulates between main heat exchanger 4 and separator 5 by loop line; The vapour outlet of described separator 5 connects the inlet mouth of vapour compressor 6 by one section of pneumatic tube, the air outlet of vapour compressor 6 is communicated with main heat exchanger 4, and the condensation-water drain of main heat exchanger 4 connects chilled water tank 8 by hydraulic pipe;
Described Crystallization Separation device comprises cooling crystallizer 12, vacuum filtration device 13, and cooling crystallizer 12 and vacuum filtration device 13 are connected to the discharge end of separator in turn by a discharging pump 11.
Adopt the technique of device condensing crystal ammonium chloride described in the utility model as follows: regulating the temperature in dash adjustment tank 1 is room temperature, ammonium chloride stoste pumps in preheater 3 and preheater 3 and produces heat exchange through fresh feed pump 2, and after preheater 3, temperature rises; Ammonium chloride solution after preheating enters into main heat exchanger 4, and circulate in main heat exchanger 4 and separator 5 by recycle pump 7, in main heat exchanger 4 with heating steam heat exchange, the ammonium chloride solution that absorbs heat enters flash distillation in separator 5, and isolate secondary steam and concentrated solution, secondary steam enters vapour compressor 6 from separator 5 vapour outlets, and after the adiabatic compression of vapour compressor 6, temperature and pressure gets a promotion; Secondary steam after increasing temperature and pressure enters main heat exchanger 4 and ammonium chloride solution heat exchange as heating steam, is condensed into water, and enters chilled water tank 8 after heat release; The ammonium chloride solution that absorbs heat enters in separator 5 flash distillation and isolates secondary steam and concentrated solution, the concentration of ammonium chloride solution reaches 46% and through discharging pump 11, pumps into crystallisation by cooling in cooling crystallizer 12 when above, then through cooling crystallizer 12 and vacuum filtration device 13, isolates ammonia chloride crystal; Can reuse after processing by ion-exchanger 10 from the last water coolant out of preheater.
The utility model can also pass through following scheme implementation:
As a kind of preferred scheme that has of the present utility model, described chilled water tank 8 is provided with cooling water outlet, and the feed-water end of a distilled water pump 9 is connected to the cooling water outlet of chilled water tank 8 by hydraulic pipe, and the water side of distilled water pump 9 is connected on preheater 3.Because water out from chilled water tank 8 also has certain temperature, if directly discharge can cause the waste of thermal source, the water in chilled water tank 8 is incorporated in preheater 3, can be used as the thermal source of preheater 3, thereby reach the object that makes full use of heat.
As a kind of preferred scheme that has of the present utility model, described vacuum filtration device 13 and separator 5 between be provided with loop, loop is provided with mother liquor pump 14, the mother liquor that obtains after vacuum filtration is sent to circulation in separator 5 through mother liquor pump 14.Mother liquor after separation is saturated ammonium chloride solution, directly discharge may cause ammonium chloride to reclaim not exclusively, discharge after stain environment, therefore design after second servo loop, mother liquor enters into separator by second servo loop, and then between separator and main heat exchanger, circulation is concentrated, reaches after predetermined concentration Crystallization Separation again, so circulation, finally realizes the recovery completely of ammonium chloride.
As a kind of preferred scheme that has of the present utility model, the condensation-water drain of described preheater 3 is connected with rising pipe.Finally by the water of condensation of crossing after preheater hot exchange, through rising pipe, discharge.
Above-mentioned embodiment is only preferred implementation of the present utility model; can not limit with this scope of the utility model protection, the variation of any unsubstantiality that those skilled in the art does on basis of the present utility model and replacement all belong to the utility model scope required for protection.
Claims (3)
1. a condensing crystal equipment for ammonium chloride, is characterized in that: it comprises primary heater unit, evaporation unit and Crystallization Separation device;
Described primary heater unit comprises dash adjustment tank, preheater, and dash adjustment tank is connected by one section of carrier pipe with preheater, on described carrier pipe, fresh feed pump is installed; The condensation-water drain of described preheater connects an ion-exchanger by one section of hydraulic pipe;
Described evaporation unit comprises main heat exchanger, separator, vapour compressor and chilled water tank; The feed end of described main heat exchanger connects the discharge end of preheater; Separator is connected with main heat exchanger and forms loop line, on described loop line, be provided with recycle pump, concentrated solution after separator separation is entered in main heat exchanger and to be entered into separator evaporation after heat exchange again and isolate concentrated solution by recycle pump, and concentrated solution circulates between main heat exchanger and separator by loop line; The vapour outlet of described separator connects the inlet mouth of vapour compressor by one section of pneumatic tube, the air outlet of vapour compressor is communicated with main heat exchanger, and the condensation-water drain of main heat exchanger connects chilled water tank by hydraulic pipe;
Described Crystallization Separation device comprises vacuum filtration device, cooling crystallizer, and cooling crystallizer and vacuum filtration device are connected to the discharge end of separator in turn by a discharging pump.
2. the condensing crystal equipment of ammonium chloride according to claim 1, it is characterized in that: described chilled water tank is provided with cooling water outlet, the feed-water end of one distilled water pump is connected to the cooling water outlet of chilled water tank by hydraulic pipe, the water side of distilled water pump is connected on preheater.
3. the condensing crystal equipment of ammonium chloride according to claim 1, it is characterized in that: between described vacuum filtration device and separator, be provided with loop, loop is provided with mother liquor pump, and the mother liquor obtaining after vacuum filtration is pumped in separator and circulates through mother liquor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320444170.XU CN203428931U (en) | 2013-07-24 | 2013-07-24 | Concentration and crystallization equipment for ammonium chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320444170.XU CN203428931U (en) | 2013-07-24 | 2013-07-24 | Concentration and crystallization equipment for ammonium chloride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203428931U true CN203428931U (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320444170.XU Expired - Lifetime CN203428931U (en) | 2013-07-24 | 2013-07-24 | Concentration and crystallization equipment for ammonium chloride |
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| CN (1) | CN203428931U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104355346A (en) * | 2014-12-02 | 2015-02-18 | 成都华西堂投资有限公司 | Heat pump evaporation treatment technology of ammonium-containing solution during flue gas purification |
| CN104370313A (en) * | 2014-11-05 | 2015-02-25 | 连云港杰瑞深软科技有限公司 | Sewage treatment plant based on mechanical recompression technique |
| CN104383797A (en) * | 2014-12-02 | 2015-03-04 | 成都华西堂投资有限公司 | Dry-wet purifying recovery treatment process of smoke gas |
| CN104445275A (en) * | 2014-12-02 | 2015-03-25 | 成都华西堂投资有限公司 | Process for preparing ammonium salt by recycling waste liquid generated by purifying flue gas |
| CN104478514A (en) * | 2014-12-02 | 2015-04-01 | 成都华西堂投资有限公司 | Heat-pump evaporation process for preparing chemical fertilizer from flue gas purification byproducts |
| CN104496101A (en) * | 2014-12-02 | 2015-04-08 | 成都华西堂投资有限公司 | Heat pump evaporation process for recycling flue gas cleaning byproducts |
| CN104971511A (en) * | 2015-03-17 | 2015-10-14 | 浙江中山化工集团股份有限公司 | Safe, highly-efficient and environment-friendly distillation device |
| CN105031965A (en) * | 2015-07-22 | 2015-11-11 | 深圳市捷晶能源科技有限公司 | Zero-emission evaporation and crystallization device |
| CN109224484A (en) * | 2018-11-06 | 2019-01-18 | 中盐工程技术研究院有限公司 | A kind of medical salt mechanical compression type thermo-compression evaporation concentration or evaporated crystallization device |
| 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 |
-
2013
- 2013-07-24 CN CN201320444170.XU patent/CN203428931U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104370313A (en) * | 2014-11-05 | 2015-02-25 | 连云港杰瑞深软科技有限公司 | Sewage treatment plant based on mechanical recompression technique |
| CN104355346A (en) * | 2014-12-02 | 2015-02-18 | 成都华西堂投资有限公司 | Heat pump evaporation treatment technology of ammonium-containing solution during flue gas purification |
| CN104383797A (en) * | 2014-12-02 | 2015-03-04 | 成都华西堂投资有限公司 | Dry-wet purifying recovery treatment process of smoke gas |
| CN104445275A (en) * | 2014-12-02 | 2015-03-25 | 成都华西堂投资有限公司 | Process for preparing ammonium salt by recycling waste liquid generated by purifying flue gas |
| CN104478514A (en) * | 2014-12-02 | 2015-04-01 | 成都华西堂投资有限公司 | Heat-pump evaporation process for preparing chemical fertilizer from flue gas purification byproducts |
| CN104496101A (en) * | 2014-12-02 | 2015-04-08 | 成都华西堂投资有限公司 | Heat pump evaporation process for recycling flue gas cleaning byproducts |
| CN104496101B (en) * | 2014-12-02 | 2016-06-08 | 成都华西堂投资有限公司 | A kind of thermo-compression evaporation technique recycling gas cleaning by-product |
| CN104478514B (en) * | 2014-12-02 | 2017-06-20 | 成都华西堂投资有限公司 | A kind of utilization gas cleaning accessory substance prepares the thermo-compression evaporation technique of chemical fertilizer |
| CN104971511A (en) * | 2015-03-17 | 2015-10-14 | 浙江中山化工集团股份有限公司 | Safe, highly-efficient and environment-friendly distillation device |
| CN105031965A (en) * | 2015-07-22 | 2015-11-11 | 深圳市捷晶能源科技有限公司 | Zero-emission evaporation and crystallization device |
| CN109224484A (en) * | 2018-11-06 | 2019-01-18 | 中盐工程技术研究院有限公司 | A kind of medical salt mechanical compression type thermo-compression evaporation concentration or evaporated crystallization device |
| 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 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |