CN106334333A - Energy-saving evaporative crystallization equipment for sodium chloride solution and control method thereof - Google Patents
Energy-saving evaporative crystallization equipment for sodium chloride solution and control method thereof Download PDFInfo
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- CN106334333A CN106334333A CN201610850734.8A CN201610850734A CN106334333A CN 106334333 A CN106334333 A CN 106334333A CN 201610850734 A CN201610850734 A CN 201610850734A CN 106334333 A CN106334333 A CN 106334333A
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- oslo
- separator
- sodium chloride
- energy
- chloride solution
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0018—Evaporation of components of the mixture to be separated
- B01D9/0031—Evaporation of components of the mixture to be separated by heating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0063—Control or regulation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
- C01D1/04—Hydroxides
- C01D1/28—Purification; Separation
- C01D1/30—Purification; Separation by crystallisation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
- C01D1/04—Hydroxides
- C01D1/44—Preparation in the form of granules, pieces, or other shaped products
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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
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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
- Y02P20/50—Improvements relating to the production of bulk chemicals
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- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses energy-saving evaporative crystallization equipment for a sodium chloride solution. The energy-saving evaporative crystallization equipment for the sodium chloride solution comprises a preheating device, an evaporating device, a crystal separating device and a control device. After adoption of the energy-saving evaporative crystallization equipment for the sodium chloride solution, the conventional steam-heating evaporative crystallization way is replaced, a compressor is used for compressing secondary steam separated by an OSLO separator, the compressed secondary steam is used as heating steam, and the own cycle of the equipment is achieved by setting a circuit, so that steam is not generated for heating, condensing equipment is not needed, and a good evaporative crystallization effect can be achieved only by using a small amount of electric energy. Therefore, the energy-saving evaporative crystallization equipment for the sodium chloride solution opens up a new way for reducing the cost, saving the energy and protecting the environment during treatment of the sodium chloride solution, and has the advantages of cleanness, energy conservation, intelligence, automatism, high working efficiency and the like.
Description
Technical field
A kind of the present invention relates to condensing crystallizing technical field of solution, in particular it relates to the energy-conservation evaporation of sodium chloride solution
Crystallizer and its control method.
Background technology
Sodium chloride is widely used industry and living resources in human lives, and the commercial production of high pure sodium chloride is generally logical
Pervaporation concentration technology is realized, but traditional steaming method technique is to realize evaporation and concentration using steam energy, wherein, and is steamed with multiple-effect
The form evaporator sent out is the most universal.But because in recent years, steam price rapidly goes up, lead to the energy consumption cost of traditional evaporated form
Become the heavy burden of vast enterprise.Furthermore, adopt non-renewable fossil energy the boiler of steam source (as coal, oil more
Deng), this also leads to the severe contamination of environment, does not meet the development general trend of events of clean energy resource, green living.
Content of the invention
It is an object of the invention to provide a kind of energy-conservation evaporation crystallization equipment of sodium chloride solution and its control method, to solve
The problem certainly proposing in above-mentioned background technology.
For achieving the above object, the following technical scheme of present invention offer:
A kind of energy-conservation evaporation crystallization equipment of sodium chloride solution, including preheating device, vaporising device, crystal segregation apparatuss,
Control device；Described preheating device includes material buffer tank, preheater, and material buffer tank and preheater pass through one section of conveying pipeline even
Connect, described conveying pipeline is provided with feed pump；Described vaporising device include main heat exchanger, oslo separator, vapour compression machine with
And condensate water pot；The feed end of described main heat exchanger connects the discharge end of preheater；Oslo separator is connected simultaneously with main heat exchanger
Form closed-loop path, described closed-loop path is provided with circulating pump, the concentrated solution after separating through oslo separator passes through circulating pump
Enter back into after entering heat exchange in main heat exchanger and evaporate in oslo separator and concentrate further, concentrated solution is in oslo separator
Bottom gravity settling separation, solid, under the percussion of gravity and concentrated solution flowing, realizes solid sedimentation, crystal grain is brought up, on
Clear liquid then continues cycling through evaporation by closed-loop path between main heat exchanger and oslo separator；The steam of described oslo separator
Outlet connects the air inlet of vapour compression machine by one section of appendix, and the gas outlet of vapour compression machine is connected with main heat exchanger, main
The condensation-water drain of heat exchanger connects condensate water pot by water-supply-pipe；Described crystal segregation apparatuss include thickener, centrifuge dress
Put, thickener and centrifuge apparatus are connected to the discharge end of oslo separator in turn by a discharging pump；Described control device bag
Include control circuit, sensor, by sensor, the data such as liquid level, crystallization situation are monitored, are automatically controlled by control circuit
Each pump, centrifuge apparatus are run, and realize full-range automatization.
Preferably, described sensor includes separation liquid level sensor in oslo separator, temperature sensor, described
Control circuit respectively with separate liquid level sensor, temperature sensor, feed pump, discharging pump connect.
Preferably, described sensor includes the stiff liquid level sensor in thickener, described control circuit respectively with
Stiff liquid level sensor, centrifuge apparatus connect.
Preferably, described condensate water pot is provided with condensation-water drain, the condensation-water drain of described condensate water pot and distilled water pump
Water inlet end connected by water-supply-pipe, the water side of described distilled water pump is connected on preheater, the condensed water of described preheater
Outlet connects outlet pipe.Condensed water flows through preheater by water-supply-pipe, and with inversely flow through the material-heat-exchanging of preheater, with reclaim
Heat, the room temperature condensed water after preheater hot exchanges is discharged through outlet pipe.
Preferably, it is provided with second servo loop between described centrifuge apparatus and oslo separator, second servo loop is provided with mother solution
Pump, the mother solution obtaining after centrifuge is pumped into circulation in oslo separator through mother solution.
Compared with prior art, the invention has the beneficial effects as follows: the energy-conservation of sodium chloride solution of the present invention evaporation knot
The traditional steam-heated evaporation and crystallization mode of brilliant equipment replacement, using compressor compresses oslo separator isolate secondary
Steam, is used the indirect steam after compression as heating steam, and achieves the circulation of equipment itself by setting loop, accomplish
Steam heating need not be given birth to, without condensing plant, only need an a small amount of electric energy just can reach good evaporative crystallization effect, thus being
In sodium chloride solution processing procedure, reduces cost, energy-conserving and environment-protective open a new way, have clean energy-saving, intelligence automatically,
The advantages such as efficient work.
For the purpose of invention is better achieved, here, a kind of energy-conservation evaporative crystallization of described sodium chloride solution is also provided to set
Standby control method, comprises the following steps:
S1. by separation liquid level sensor, vaporising device oslo separator liquid level is monitored, in the low liquid of oslo separator
During position, control circuit automatically controls unlatching feed pump, closes feed pump when oslo separator liquid level is high it is ensured that concentrator liquid level
Maintain stable region；
S2. by solution concentration in temperature sensor indirect monitoring vaporising device oslo separator, when temperature reaches setting value
When, that is, solution concentration arrived setting value, automatically controls discharging pump by control circuit and opens, the sedimentation in oslo separator is brilliant
Grain pumps into thickener through discharging pump, and when in oslo separator, solution temperature reduces to a certain extent, control circuit automatically controls
Discharging pump is closed, and by the keying of discharging pump, makes the sedimentation crystal grain in oslo separator timely enter thickener and continues crystallization；
S3. by stiff liquid level sensor, thickener liquid level is monitored, thickener solidliquid mixture reaches the liquid of setting
Behind position, by default mixing speed and rearing crystal time, after the further crystal growth of sodium chloride crystal to the granularity requiring, control
Circuit automatically controls unlatching centrifuge apparatus, is discharged into centrifuge apparatus fixed quantity, isolates sodium chloride crystal.
Preferably, the level parameter of described control circuit, temperature of charge parameter can be adjusted, thus meeting different dense
Degree, the crystallization of the sodium chloride solution of quality need.
Brief description
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is the block diagram of the control device of the embodiment of the present invention；
Wherein: 1. material buffer tank, 2. feed pump, 3. preheater, 4. main heat exchanger, 5.oslo separator, 6. vapour pressure
Contracting machine, 7. condensate water pot, 8 distilled water pumps, 9. circulating pump, 10. discharging pump, 11. thickeners, 12. centrifuge apparatus, 13. mother solutions
Pump.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
Shown in reference Fig. 1, Fig. 2, a kind of energy-conservation evaporation crystallization equipment of sodium chloride solution, described preheating device includes material
Surge tank 1, preheater 3, material buffer tank 1 is connected by one section of conveying pipeline with preheater 3, and described conveying pipeline is provided with charging
Pump 2；Described vaporising device includes main heat exchanger 4, oslo separator 5, vapour compression machine 6 and condensate water pot 7；Described main heat exchange
The feed end of device 4 connects the discharge end of preheater 3；Oslo separator 5 is connected with main heat exchanger 4 and forms closed-loop path, described
Circulating pump 9 is provided with closed-loop path, the concentrated solution after separating through oslo separator 5 is entered in main heat exchanger 4 by circulating pump 9
Enter back into after heat exchange and in oslo separator 5, isolate concentrated solution, concentrated solution supernatant passes through closed-loop path in main heat exchanger 4
Continue cycling through evaporation and oslo separator 5 between, Sinking solids crystallize under gravity and fluid impingement force effect and bring up；Described
The steam (vapor) outlet of oslo separator 5 passes through the air inlet that one section of appendix connects vapour compression machine 6, the giving vent to anger of vapour compression machine 6
Mouth is connected with main heat exchanger 4, and the condensation-water drain of main heat exchanger 4 connects condensate water pot 7 by water-supply-pipe；Described crystal separates and fills
Put including thickener 11, centrifuge apparatus 12, thickener 11 and centrifuge apparatus 12 are connected in turn by a discharging pump 10
The discharge end of oslo separator 5.Described control device includes control circuit, sensor, by sensor to liquid level, crystallization situation
It is monitored etc. data, each pump is automatically controlled by control circuit, centrifuge apparatus are run, and realize full-range automatization.
Described condensate water pot 7 is provided with condensation-water drain, and the water inlet end of a distilled water pump 8 is connected to condensed water by water-supply-pipe
The condensation-water drain of tank 7, the water side of distilled water pump 8 is connected on preheater 3.Because from condensate water pot 7, water out is also
There is uniform temperature, if being expelled directly out leading to the waste of thermal source, the water in condensate water pot 7 being incorporated in preheater 3, permissible
As the thermal source of preheater 3, thus reaching the purpose making full use of heat.
Described centrifuge apparatus 12 be provided with loop and oslo separator 5 between, loop is provided with mother solution pump 13, centrifuge
The mother solution obtaining afterwards is sent to circulation in oslo separator 5 through mother solution pump 13.Mother solution after separating is saturated nacl aqueous solution,
Design second servo loop for this, mother solution enters in oslo separator by second servo loop, then in oslo separator and main heat exchange
Between device, circulation concentrates, and after reaching predetermined concentration, crystal separates again, moves in circles, finally realizes returning completely of sodium chloride
Receive.
Described condensate water pot 7 is provided with condensation-water drain, and the condensation-water drain of described condensate water pot 7 is entered with distilled water pump 8
Water end (W.E.) is connected by water-supply-pipe, and the water side of described distilled water pump 8 is connected on preheater 3, and the condensed water of described preheater 3 goes out
Mouth connects outlet pipe.Condensed water flows through preheater 3 by water-supply-pipe, and with inversely flow through the material-heat-exchanging of preheater 3, with reclaim
Heat, the room temperature condensed water after preheater 3 heat exchange is discharged through outlet pipe.
The condensation-water drain of described preheater 3 is connected with outlet pipe, and the condensed water after heat exchange is discharged through outlet pipe.
With reference to shown in Fig. 2, described sensor includes separation liquid level sensor in oslo separator 5, temperature sensing
Device, described control circuit respectively with separate liquid level sensor, temperature sensor, feed pump 2, discharging pump 10 connect.Described sensing
Device includes the stiff liquid level sensor in thickener 11, described control circuit respectively with stiff liquid level sensor, centrifuge
Device 12 connects.
For ease of more fully understanding the present invention, brief for the present embodiment sodium chloride solution energy-conservation evaporated crystallization device below
Technological process: the temperature in material buffer tank 1 is room temperature, sodium chloride stock solution pumps in preheater 3 and preheater 3 through feed pump 2
Condensed water produces heat exchange, and after preheater 3, temperature rises；Sodium chloride solution after preheating enters in main heat exchanger 4, and leads to
Cross circulating pump 9 to circulate in main heat exchanger 4 and oslo separator 5, with heating steam heat-exchanging in main heat exchanger 4, absorb heat
Sodium chloride solution enter flash distillation in oslo separator 5, and isolate indirect steam and concentrated solution, indirect steam separates from oslo
Device 5 steam (vapor) outlet enters vapour compression machine 6, and after the adiabatic compression through vapour compression machine 6, temperature and pressure gets a promotion；Heat up
Indirect steam after boosting enters main heat exchanger 4 and sodium chloride solution heat exchange as heating steam, is condensed into water, side by side after heat release
Enter condensate water pot 7；The sodium chloride solution absorbing heat enters flash distillation isolate indirect steam and concentration in oslo separator 5
Liquid, the concentration of sodium chloride solution reaches and pumps into stirred crystallization in thickener 11 through discharging pump 10 during more than 33% supersaturation concentration,
It is then passed through thickener 11 and centrifuge apparatus 12 isolate sodium chloride crystal；And it is permissible from the last condensed water out of preheater
Reuse or qualified discharge.
For the purpose of invention is better achieved, here, also provide a kind of evaporation knot of the energy-conservation using described sodium chloride solution
Brilliant equipment is evaporated the control method of condensing crystallizing, comprises the following steps:
S1. by separation liquid level sensor, vaporising device oslo separator 5 liquid level is monitored, low in oslo separator 5
During liquid level, control circuit automatically controls unlatching feed pump 2, closes feed pump 2 when oslo separator 5 liquid level is high it is ensured that its liquid level
Maintain stable region；
S2. by solution concentration in temperature sensor indirect monitoring vaporising device oslo separator 5, when temperature reaches setting value
When, that is, solution concentration arrived setting value, automatically controls discharging pump 10 by control circuit and opens, heavy in oslo separator 5
Fall crystal grain pumps into thickener 11 through discharging pump 10, when in oslo separator 5, solution temperature reduces to a certain extent, control circuit
Automatically control discharging pump 10 to close, by the keying of discharging pump 10, make the sedimentation crystal grain in oslo separator 5 timely enter stiff
Device 11 continues crystallization；
S3. by stiff liquid level sensor, thickener 11 liquid level is monitored, thickener 11 solidliquid mixture reaches setting
Liquid level after, by default mixing speed and rearing crystal time, after the further crystal growth of sodium chloride crystal to the granularity requiring,
Control circuit automatically controls unlatching centrifuge apparatus 12, is discharged into centrifuge apparatus 12 fixed quantity, isolates sodium chloride brilliant
Body.
Further, the level parameter of described control circuit, temperature of charge parameter can be adjusted, thus meeting different dense
Degree, the crystallization of the sodium chloride solution of quality need.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible
Understand and can carry out multiple changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention be defined by the appended.
Claims (7)
1. a kind of energy-conservation evaporation crystallization equipment of sodium chloride solution is it is characterised in that the energy-conservation evaporation of described sodium chloride solution is tied
Brilliant equipment includes preheating device, vaporising device, crystal segregation apparatuss, control device；Described preheating device include material buffer tank,
Preheater, material buffer tank is connected by one section of conveying pipeline with preheater, and described conveying pipeline is provided with feed pump；Described evaporation
Device includes main heat exchanger, oslo separator, vapour compression machine and condensate water pot；The feed end of described main heat exchanger connects pre-
The discharge end of hot device；Oslo separator is connected with main heat exchanger and forms closed-loop path, and described closed-loop path is provided with circulation
Pump, the concentrated solution after separating through oslo separator enters back into oslo and separates after entering heat exchange in main heat exchanger by circulating pump
Evaporate in device and concentrate further, concentrated solution in gravity and concentrates liquor stream in the bottom gravity settling separation of oslo separator, solid
Under dynamic percussion, realize solid sedimentation, crystal grain is brought up, supernatant is then separated with oslo in main heat exchanger by closed-loop path
Evaporation is continued cycling through between device；The steam (vapor) outlet of described oslo separator passes through the air inlet that one section of appendix connects vapour compression machine
Mouthful, the gas outlet of vapour compression machine is connected with main heat exchanger, and the condensation-water drain of main heat exchanger connects condensed water by water-supply-pipe
Tank；Described crystal segregation apparatuss include thickener, centrifuge apparatus, and thickener and centrifuge apparatus are connected successively by a discharging pump
It is connected on the discharge end of oslo separator；Described control device includes control circuit, sensor, by sensor to liquid level, crystallization
The data such as situation are monitored, and automatically control each pump by control circuit, centrifuge apparatus are run, and realize full-range automatization.
2. the energy-conservation evaporation crystallization equipment of sodium chloride solution as claimed in claim 1 is it is characterised in that described sensor includes
Separation liquid level sensor in oslo separator, temperature sensor, described control circuit respectively with separate liquid level sensor,
Temperature sensor, feed pump, discharging pump connect.
3. the energy-conservation evaporation crystallization equipment of sodium chloride solution as claimed in claim 2 is it is characterised in that described sensor includes
Stiff liquid level sensor in thickener, described control circuit is connected with stiff liquid level sensor, centrifuge apparatus respectively.
4. the energy-conservation evaporation crystallization equipment of sodium chloride solution as claimed in claim 3 is it is characterised in that described condensate water pot sets
There is condensation-water drain, the condensation-water drain of described condensate water pot is connected by water-supply-pipe with the water inlet end of distilled water pump, described steaming
The water side of distilled water pump is connected on preheater, and the condensation-water drain of described preheater connects outlet pipe.
5. the energy-conservation evaporation crystallization equipment of sodium chloride solution as claimed in claim 4 is it is characterised in that described centrifuge apparatus
It is provided with second servo loop and oslo separator between, second servo loop is provided with mother solution pump, the mother solution obtaining after centrifuge is through female
Liquid pump is sent to circulation in oslo separator.
6. a kind of control method of the energy-conservation evaporation crystallization equipment of described sodium chloride solution is it is characterised in that comprise the following steps:
S1. by separation liquid level sensor, vaporising device oslo separator liquid level is monitored, in oslo separator low liquid level
Control circuit automatically controls unlatching feed pump, closes feed pump when oslo separator liquid level is high it is ensured that concentrator liquid level maintains
In stable region；
S2. by solution concentration in temperature sensor indirect monitoring vaporising device oslo separator, when temperature reaches setting value,
It is exactly that solution concentration has arrived setting value, discharging pump is automatically controlled by control circuit and opens, the sedimentation crystal grain warp in oslo separator
Discharging pump pumps into thickener, and when in oslo separator, solution temperature reduces to a certain extent, control circuit automatically controls discharging
Pump cuts out, and by the keying of discharging pump, makes the sedimentation crystal grain in oslo separator timely enter thickener and continues crystallization；
S3. by stiff liquid level sensor, thickener liquid level is monitored, after thickener solidliquid mixture reaches the liquid level of setting,
By default mixing speed and rearing crystal time, after the further crystal growth of sodium chloride crystal to the granularity requiring, control circuit
Automatically control unlatching centrifuge apparatus, be discharged into centrifuge apparatus fixed quantity, isolate sodium chloride crystal.
7. the control method of the energy-conservation evaporation crystallization equipment of sodium chloride solution as claimed in claim 6 is it is characterised in that described
The level parameter of control circuit, temperature of charge parameter can be adjusted, thus meet the sodium chloride solution of variable concentrations, quality
Crystallization needs.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610850734.8A CN106334333A (en) | 2016-09-26 | 2016-09-26 | Energy-saving evaporative crystallization equipment for sodium chloride solution and control method thereof |
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| CN201610850734.8A CN106334333A (en) | 2016-09-26 | 2016-09-26 | Energy-saving evaporative crystallization equipment for sodium chloride solution and control method thereof |
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Cited By (8)
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| CN106379920A (en) * | 2016-11-17 | 2017-02-08 | 河北言明化工设备有限公司 | Device and method of preparing pure lithium chloride solution by precipitating sodium through evaporation of mixed aqueous solution of lithium chloride and sodium chloride |
| CN107042060A (en) * | 2017-04-05 | 2017-08-15 | 中冶焦耐(大连)工程技术有限公司 | A kind of method of resource of the sour gas containing ammonia |
| CN107982941A (en) * | 2017-11-14 | 2018-05-04 | 天津大学 | The control method of sodium-chloride water solution intermittent vacuum evaporative mass |
| CN110171837A (en) * | 2019-05-14 | 2019-08-27 | 惠纯科技(浙江)有限公司 | A kind of energy-efficient lithium chloride enrichment facility |
| CN111547794A (en) * | 2020-04-22 | 2020-08-18 | 杭州科晟能源技术有限公司 | Low-temperature vacuum evaporation wastewater treatment system |
| CN112295256A (en) * | 2020-09-23 | 2021-02-02 | 河北金坦化工装备有限公司 | Heat pump type temperature rising crystallization process |
| CN112870755A (en) * | 2021-01-11 | 2021-06-01 | 青岛理工大学 | Potassium chloride solution concentration and crystallization production system based on waste heat of blast furnace slag flushing water and working method |
| CN113415828A (en) * | 2021-07-30 | 2021-09-21 | 广西埃索凯新材料科技有限公司 | Data monitoring-based high-purity manganese sulfate production system |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106379920A (en) * | 2016-11-17 | 2017-02-08 | 河北言明化工设备有限公司 | Device and method of preparing pure lithium chloride solution by precipitating sodium through evaporation of mixed aqueous solution of lithium chloride and sodium chloride |
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| CN107042060A (en) * | 2017-04-05 | 2017-08-15 | 中冶焦耐(大连)工程技术有限公司 | A kind of method of resource of the sour gas containing ammonia |
| CN107042060B (en) * | 2017-04-05 | 2022-12-13 | 中冶焦耐(大连)工程技术有限公司 | Recycling method of ammonia-containing acidic gas |
| CN107982941A (en) * | 2017-11-14 | 2018-05-04 | 天津大学 | The control method of sodium-chloride water solution intermittent vacuum evaporative mass |
| CN110171837A (en) * | 2019-05-14 | 2019-08-27 | 惠纯科技(浙江)有限公司 | A kind of energy-efficient lithium chloride enrichment facility |
| CN111547794A (en) * | 2020-04-22 | 2020-08-18 | 杭州科晟能源技术有限公司 | Low-temperature vacuum evaporation wastewater treatment system |
| CN112295256A (en) * | 2020-09-23 | 2021-02-02 | 河北金坦化工装备有限公司 | Heat pump type temperature rising crystallization process |
| CN112870755A (en) * | 2021-01-11 | 2021-06-01 | 青岛理工大学 | Potassium chloride solution concentration and crystallization production system based on waste heat of blast furnace slag flushing water and working method |
| CN112870755B (en) * | 2021-01-11 | 2022-04-22 | 青岛理工大学 | Potassium chloride solution concentration and crystallization production system based on waste heat of blast furnace slag flushing water and working method |
| CN113415828A (en) * | 2021-07-30 | 2021-09-21 | 广西埃索凯新材料科技有限公司 | Data monitoring-based high-purity manganese sulfate production system |
| CN113415828B (en) * | 2021-07-30 | 2022-06-14 | 广西埃索凯新材料科技有限公司 | Data monitoring-based high-purity manganese sulfate production system |
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Application publication date: 20170118 |