CN105036441A - Concentration crystallization device for carnallite waste water - Google Patents

Concentration crystallization device for carnallite waste water Download PDF

Info

Publication number
CN105036441A
CN105036441A CN201510435436.8A CN201510435436A CN105036441A CN 105036441 A CN105036441 A CN 105036441A CN 201510435436 A CN201510435436 A CN 201510435436A CN 105036441 A CN105036441 A CN 105036441A
Authority
CN
China
Prior art keywords
carnallite
separator
waste water
heat exchanger
main heat
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.)
Pending
Application number
CN201510435436.8A
Other languages
Chinese (zh)
Inventor
代超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENZHEN CRYSTAL ENERGY TECH Co Ltd
Original Assignee
SHENZHEN CRYSTAL ENERGY TECH Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHENZHEN CRYSTAL ENERGY TECH Co Ltd filed Critical SHENZHEN CRYSTAL ENERGY TECH Co Ltd
Priority to CN201510435436.8A priority Critical patent/CN105036441A/en
Publication of CN105036441A publication Critical patent/CN105036441A/en
Pending legal-status Critical Current

Links

Abstract

The invention discloses a concentration crystallization device for carnallite waste water. The concentration crystallization device comprises a preheating device, an evaporation device and a crystallization separation device. The concentration crystallization device for carnallite waste water replaces a traditional steam heating evaporation crystallization mode. Secondary steam discharged by a cooling crystallizer is compressed through a compressor, the compressed secondary steam is used as heating steam, circulation of the device is achieved by setting a loop, no steam needs to be generated for heating, no condensation device is needed, the good evaporation effect can be achieved only through a small quantity of electric energy, and thus a new approach is provided to achieve the purposes that the cost is lowered, and energy is saved in the carnallite waste water solution treatment process.

Description

A kind of condensing crystal equipment of carnallite waste water
Technical field
The present invention relates to the condensing crystal technical field of solution, be specifically related to a kind of condensing crystal equipment of carnallite waste water.
Background technology
Trade effluent containing carnallite is quite serious to the pollution of environment, and the process of trade effluent is a very large difficult problem.Adopt evaporating and concentrating process, steam consumption is high, and carnallite waste water solution is very serious to the corrosion of material.Based on this, adopt evaporation technology to evaporate, equipment material selects suitable corrosion resistant material.In common technology, 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.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of condensing crystal equipment of carnallite waste water, by the self-circulation between main heat exchanger and separator, adopt the secondary steam that compressor compresses crystal separator gives off, use the secondary steam after compression to use as heating steam, realize the object of evaporation concentration, thus save energy, reduce costs, enhance productivity.
For solving the problem, the technical solution adopted in the present invention is as follows:
A condensing crystal equipment for carnallite waste water, it comprises primary heater unit, evaporation unit and Crystallization Separation device;
Described primary heater unit comprises material buffer tank and preheater, and carnallite waste water enters material buffer tank and pumps in preheater through carrier pipe and carry out preheating;
Described evaporation unit comprises main heat exchanger, separator, vapour compressor and chilled water tank, wherein, the discharge end of preheater is connected on the feed end of main heat exchanger after condensing heat exchanger, main heat exchanger is connected with separator and forms loop line, carnallite waste water after preheating in loop line cocycle through main heat exchanger and separator, constantly isolate the concentrated solution of steam and high saturation, especially, between the vapour outlet of described separator and main heat exchanger, also vapour compressor is set, the steam that separator is separated enters vapour compressor adiabatic compression, reenter main heat exchanger cycle heat exchange, vapor condensation Cheng Shuihou enters chilled water tank, chilled water tank is connected on the condensation-water drain of main heat exchanger by hydraulic pipe,
Described Crystallization Separation device comprises cooling crystallizer and sedimentator device, cooling crystallizer and sedimentator device are connected to the discharge end of separator in turn by a discharging pump, the concentrated solution reaching hypersaturated state pumps into cooling crystallizer crystallization, and isolates crystal through sedimentator device.
The present invention can also pass through following scheme implementation:
Preferred scheme is had as one of the present invention, described main heat exchanger and separator connect and compose a loop line by pipeline, pipeline is provided with a recycle pump, carnallite waste water after preheating enters main heat exchanger and heating steam heat exchange, the carnallite waste water obtaining heat enters separator flash separation and goes out secondary steam and concentrated solution, concentrated solution reenters loop line by recycle pump effect, constantly through main heat exchanger and separator flash separation effect, finally reach hypersaturated state and pump into cooling crystallizer from separator and carry out crystallization.
Preferred scheme is had as one of the present invention, described chilled water tank is provided with cooling water outlet, cooling water outlet is connected on preheater after a distilled water pump, and the water coolant that chilled water tank is discharged provides heat exchange thermal source through preheater, and the water coolant after heat exchange is from the pollution-free discharge of preheater.
Have preferred scheme as one of the present invention, connected by carrier pipe between described material buffer tank and preheater, carrier pipe is provided with fresh feed pump, and material exports from material buffer tank, pumps into preheater carry out preheating through fresh feed pump.
Have preferred scheme as one of the present invention, described sedimentator device and be provided with second servo loop between separator, second servo loop is provided with mother liquor pump, and the mother liquor obtained after sedimentator is pumped in separator through mother liquor and circulates.
Compared to existing technology, beneficial effect of the present invention is: the traditional steam-heated evaporation and crystallization mode of the condensing crystal equipment replacement of carnallite waste water of the present invention, adopt the secondary steam that compressor compresses cooling 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 reduce costs in carnallite wastewater treatment process, save energy opens a new way.
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the preferred embodiment for the present invention.
Embodiment
As shown in Figure 1, the condensing crystal equipment of carnallite waste water of the present invention, it comprises primary heater unit, evaporation unit 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 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, described loop line is provided with recycle pump 7, concentrated solution after separator 5 is separated is entered into separator 5 again after being entered by recycle pump 7 in main heat exchanger 4 and evaporating and isolates concentrated solution, and concentrated solution is circulated 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 crystallizer 11, centrifuge apparatus 12, and crystallizer 11 and centrifuge apparatus 12 are connected to the discharge end of separator in turn by a discharging pump 10.
Adopt the technique of device condensing crystal carnallite waste water of the present invention as follows: the temperature in material buffer tank 1 is room temperature, carnallite waste water 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; Carnallite waste water solution after preheating enters into main heat exchanger 4, and circulated in main heat exchanger 4 and separator 5 by recycle pump 7, with heating steam heat exchange in main heat exchanger 4, the carnallite waste water solution absorbing heat enters flash distillation in separator 5, and isolate secondary steam and concentrated solution, secondary steam enters vapour compressor 6 from separator 5 vapour outlet, 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 the heat exchange of carnallite waste water solution as heating steam, is condensed into water, and enters chilled water tank 8 after heat release; The carnallite waste water solution absorbing heat enters flash distillation in separator 5 and isolates secondary steam and concentrated solution, pump into stirred crystallization in crystallizer 11 through discharging pump 10 when the concentration of carnallite waste water solution reaches more than 35%, then isolate carnallite waste water crystal through crystallizer 11 and centrifuge apparatus 12; Can reuse or qualified discharge from the last water coolant out of preheater.
The present invention can also pass through following scheme implementation:
As the preferred scheme of one of the present invention, 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 also has certain temperature from chilled water tank 8, if directly discharge can cause the waste of thermal source, the water in chilled water tank 8 is incorporated in preheater 3, as the thermal source of preheater 3, thus the object making full use of heat can be reached.
As the preferred scheme of one of the present invention, described centrifuge apparatus 12 and be provided with loop between separator 5, loop is provided with mother liquor pump 13, the mother liquor obtained after whizzer through mother liquor pump 13 be sent in separator 5 circulate.Mother liquor after separation is saturated carnallite waste water solution, direct discharge may cause carnallite waste water reclamation incomplete, discharge after stain environment, therefore after designing second servo loop, mother liquor enters into separator by second servo loop, and then between separator and main heat exchanger, circulation is concentrated, to reach after predetermined concentration Crystallization Separation again, circulation like this, finally realizes the process completely of carnallite waste water.
As the preferred scheme of one of the present invention, 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.
Above-mentioned embodiment is only the preferred embodiment of the present invention; can not limit the scope of protection of the invention with this, change and the replacement of any unsubstantiality that those skilled in the art does on basis of the present invention all belong to the present invention's scope required for protection.

Claims (5)

1. a condensing crystal equipment for carnallite waste water, comprises primary heater unit, evaporation unit and Crystallization Separation device, it is characterized in that:
Described primary heater unit comprises material buffer tank and preheater, and carnallite waste water enters material buffer tank and pumps in preheater through carrier pipe and carry out preheating;
Described evaporation unit comprises main heat exchanger, separator, vapour compressor and chilled water tank, wherein, the discharge end of preheater is connected on the feed end of main heat exchanger after condensing heat exchanger, main heat exchanger is connected with separator and forms loop line, carnallite waste water after preheating in loop line cocycle through main heat exchanger and separator, constantly isolate the concentrated solution of steam and high saturation, especially, between the vapour outlet of described separator and main heat exchanger, also vapour compressor is set, the steam that separator is separated enters vapour compressor adiabatic compression, reenter main heat exchanger cycle heat exchange, vapor condensation Cheng Shuihou enters chilled water tank, chilled water tank is connected on the condensation-water drain of main heat exchanger by hydraulic pipe,
Described Crystallization Separation device comprises cooling crystallizer and sedimentator device, cooling crystallizer and sedimentator device are connected to the discharge end of separator in turn by a discharging pump, the concentrated solution reaching hypersaturated state pumps into cooling crystallizer crystallization, and isolates crystal through sedimentator device.
2. the condensing crystal equipment of a kind of carnallite waste water according to claim 1, it is characterized in that: described main heat exchanger and separator connect and compose a loop line by pipeline, pipeline is provided with a recycle pump, carnallite waste water after preheating enters main heat exchanger and heating steam heat exchange, the carnallite waste water obtaining heat enters separator flash separation and goes out secondary steam and concentrated solution, concentrated solution reenters loop line by recycle pump effect, constantly through main heat exchanger and separator flash separation effect, finally reach hypersaturated state to pump into cooling crystallizer from separator and carry out crystallization.
3. the condensing crystal equipment of a kind of carnallite waste water according to claim 1, it is characterized in that: described chilled water tank is provided with cooling water outlet, cooling water outlet is connected on preheater after a distilled water pump, the water coolant that chilled water tank is discharged provides heat exchange thermal source through preheater, and the water coolant after heat exchange is from the pollution-free discharge of preheater.
4. the condensing crystal equipment of a kind of carnallite waste water according to claim 1, it is characterized in that: connected by carrier pipe between described material buffer tank and preheater, carrier pipe is provided with fresh feed pump, and carnallite waste water exports from material buffer tank, pumps into preheater carry out preheating through fresh feed pump.
5. the condensing crystal equipment of a kind of carnallite waste water according to claim 1, it is characterized in that: between described sedimentator device and separator, be provided with loop, loop is provided with mother liquor pump, and the mother liquor obtained after sedimentator is pumped in separator through mother liquor and circulates.
CN201510435436.8A 2015-07-22 2015-07-22 Concentration crystallization device for carnallite waste water Pending CN105036441A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510435436.8A CN105036441A (en) 2015-07-22 2015-07-22 Concentration crystallization device for carnallite waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510435436.8A CN105036441A (en) 2015-07-22 2015-07-22 Concentration crystallization device for carnallite waste water

Publications (1)

Publication Number Publication Date
CN105036441A true CN105036441A (en) 2015-11-11

Family

ID=54443491

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510435436.8A Pending CN105036441A (en) 2015-07-22 2015-07-22 Concentration crystallization device for carnallite waste water

Country Status (1)

Country Link
CN (1) CN105036441A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106334333A (en) * 2016-09-26 2017-01-18 深圳市捷晶能源科技有限公司 Energy-saving evaporative crystallization equipment for sodium chloride solution and control method thereof
CN106387988A (en) * 2016-10-31 2017-02-15 湖北中烟工业有限责任公司 Preparation device and method of tobacco raw material concentrated solution
CN106587229A (en) * 2016-12-27 2017-04-26 青岛卓森纳生物工程有限公司 MVR evaporation device used for sewage treatment
CN106698792A (en) * 2017-01-10 2017-05-24 山东大学 Organic salt-containing wastewater treatment system based on vacuum evaporation and thermal energy utilization and process
CN107540139A (en) * 2016-06-29 2018-01-05 宝山钢铁股份有限公司 A kind of recycling processing system and method for cold rolling wastewater ion exchange strong brine
CN108568134A (en) * 2018-07-23 2018-09-25 深圳市瑞升华科技股份有限公司 Cobaltous sulfate evaporation crystallization equipment and technique

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59232913A (en) * 1983-06-17 1984-12-27 Tsukishima Kikai Co Ltd Manufacture of ammonium sulfate from ammonium sulfite
CN203428934U (en) * 2013-07-24 2014-02-12 深圳市捷晶能源科技有限公司 Concentrating and crystallizing system of copper sulfate solution
CN204999762U (en) * 2015-07-22 2016-01-27 深圳市捷晶能源科技有限公司 Concentrated crystallization equipment of carnallite waste water

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59232913A (en) * 1983-06-17 1984-12-27 Tsukishima Kikai Co Ltd Manufacture of ammonium sulfate from ammonium sulfite
CN203428934U (en) * 2013-07-24 2014-02-12 深圳市捷晶能源科技有限公司 Concentrating and crystallizing system of copper sulfate solution
CN204999762U (en) * 2015-07-22 2016-01-27 深圳市捷晶能源科技有限公司 Concentrated crystallization equipment of carnallite waste water

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107540139A (en) * 2016-06-29 2018-01-05 宝山钢铁股份有限公司 A kind of recycling processing system and method for cold rolling wastewater ion exchange strong brine
CN107540139B (en) * 2016-06-29 2020-11-17 宝山钢铁股份有限公司 Recycling treatment system and method for cold rolling wastewater ion exchange strong brine
CN106334333A (en) * 2016-09-26 2017-01-18 深圳市捷晶能源科技有限公司 Energy-saving evaporative crystallization equipment for sodium chloride solution and control method thereof
CN106387988A (en) * 2016-10-31 2017-02-15 湖北中烟工业有限责任公司 Preparation device and method of tobacco raw material concentrated solution
CN106387988B (en) * 2016-10-31 2017-10-03 湖北中烟工业有限责任公司 The preparation facilities and method of tobacco material concentrate
CN106587229A (en) * 2016-12-27 2017-04-26 青岛卓森纳生物工程有限公司 MVR evaporation device used for sewage treatment
CN106698792A (en) * 2017-01-10 2017-05-24 山东大学 Organic salt-containing wastewater treatment system based on vacuum evaporation and thermal energy utilization and process
CN108568134A (en) * 2018-07-23 2018-09-25 深圳市瑞升华科技股份有限公司 Cobaltous sulfate evaporation crystallization equipment and technique

Similar Documents

Publication Publication Date Title
CN203428931U (en) Concentration and crystallization equipment for ammonium chloride
CN105036441A (en) Concentration crystallization device for carnallite waste water
CN102616973B (en) Method and device for processing high-saline organic wastewater
CN203428934U (en) Concentrating and crystallizing system of copper sulfate solution
CN105031965A (en) Zero-emission evaporation and crystallization device
CN103265089B (en) High temperature high efficiency multi-effect seawater distillation desalination apparatus and method
CN204910804U (en) Ammonium sulfate solution evaporation crystallization equipment
CN204310909U (en) Coal Chemical Industry produces brine waste evaporated crystallization device in ethylene glycol
CN202625969U (en) High-salinity organic wastewater treatment device
CN203355316U (en) Continuous quarternary-stage evaporation and crystallization device for manufacturing sodium gluconate
CN104922974B (en) A kind of concentration device for material liquid
CN103127736A (en) Evaporation and concentration device utilizing heat pump technique
CN204932926U (en) A kind of zero-emission evaporation crystallization equipment
CN204952342U (en) Concentrated crystal system of carnallite solution
CN105236651A (en) Technology for evaporating and crystallizing high concentration salt-containing wastewater in pulping and papermaking industries
CN105036440A (en) Concentration and crystallization device for nickel sulfate waste water
CN204918000U (en) Sodium sulphate solution evaporation crystal system
CN204999762U (en) Concentrated crystallization equipment of carnallite waste water
CN204824207U (en) Sodium sulphate solution evaporation crystallization equipment
CN204891247U (en) Sodium nitrate solution evaporation crystallization equipment
CN110422899A (en) A kind of heat pump flash vaporization concentration systems
CN204034286U (en) Board-like mechanical vapour recompression evaporator
CN204824178U (en) Monoammonium phosphate solution evaporation crystallization equipment
CN204897422U (en) Ammonium chloride solution evaporation crystal system
CN110746022B (en) Sewage treatment system

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20151111