CN206553207U - It is a kind of to be used for the apparatus system of cobaltous sulfate efficient concentration and continuous crystallisation - Google Patents
It is a kind of to be used for the apparatus system of cobaltous sulfate efficient concentration and continuous crystallisation Download PDFInfo
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- CN206553207U CN206553207U CN201620869650.4U CN201620869650U CN206553207U CN 206553207 U CN206553207 U CN 206553207U CN 201620869650 U CN201620869650 U CN 201620869650U CN 206553207 U CN206553207 U CN 206553207U
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- cobaltous sulfate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
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Abstract
It is a kind of to be used for the apparatus system of cobaltous sulfate efficient concentration and continuous crystallisation, including evaporation heater (6), vapor seperator (7), OSLO vacuum crystallizers (17), fine crystal elimination heater (16), vapour compression machine (10), condensation water preheater (3), vapor preheater (4), centrifuge (20) and pump class.The stoste enters evaporation heater by vapor preheater, and evaporation heater is connected with vapor seperator, circulating pump；Vapor seperator is connected with OSLO vacuum crystallizers；The OSLO vacuum crystallizers center is provided with feed liquid decline, tube top portion sets flash chamber, sidepiece sets circulation fluid to export, indirect steam is set to export at the top of flash chamber, it is connected with condenser and fine crystal elimination device, the OSLO vacuum crystallizers are connected with centrifuge, and centrifuge is connected with mother liquor tank and stoste surge tank, realize overall feed liquid circulation.The characteristics of system has energy-conservation, serialization, automation, efficiency high.
Description
Technical field
The utility model is related to a kind of for cobaltous sulfate efficient concentration and the apparatus system of continuous crystallisation, specially a kind of section
The group of the energy continuous concentration device of type and the enrichment facility of continuous crystalizer, i.e. function of mechanical steam recompression and vacuum and low temperature crystallization apparatus
Syzygy is united.
Background technology
Cobaltous sulfate and similar to cobaltous sulfate material evaporating, concentrating and crystallizing production be a larger energy consumption production process,
How to be saved for above-mentioned production process and efficiently production is the key that Metallurgy Industry develops.And traditional cobaltous sulfate production process base
This is all that leading portion uses single-action or multiple-effect evaporation, and back segment is using the reactor of jacketed come decrease temperature crystalline, and general back segment is all
Intermittently operated can not be produced continuously so that evaporate and crystallization process efficiency is low, crystallization process production capacity is small, artificial intensity big,
The demand of modern production can not be met.In addition, traditional single-action or Multi-effect Evaporation Processes, material temperature difference pull open larger, steaming
Send out device fouling and scab serious, it is necessary to which frequent cleaning during shutdown, has a strong impact on production efficiency.Moreover, traditional concentrator is usual
Be the indirect steam and condensed water for producing evaporator be expelled directly out or condensed equipment condensation after discharge, so not only waste
The latent heat and the waste heat of condensed water of indirect steam, also increases condensing plant, has not only added investment again not environmentally and economy.Cause
This, evaporation and crystallization process can be saved simultaneously and the two is fitted close and continuously produced, and be to improve production efficiency and product matter
The key of amount.
The content of utility model
The purpose of this utility model is to provide a kind of work for cobaltous sulfate efficient concentration and continuous high-efficient low temperature crystallization
Process and equipment system, meets the production similar to cobaltous sulfate class material characteristic product.
The utility model material concentrates what is be realized in crystallization process：The processed material passes through charging first
Valve enters stoste surge tank (1), and be then driven into condensation water- to-water heat exchanger (3) by feed pump (2) comes out with total system
Hot water heat exchange, after heat exchange temperature close to setting evaporating temperature (60-95 DEG C) then pass through an additional vapor preheater (4)
By preheating temperature to evaporating temperature, the circulation of integral type MVR (abbreviation with mechanical steam Compression Evaporation device) evaporator is entered
It is concentrated by evaporation, in evaporation heater heating, in the separation of evaporation separation chamber, after circulating and evaporating is concentrated, the concentration of material can be carried
Height arrives saturated concentration of the cobaltous sulfate under corresponding temperature.Then the material after concentrating is true to OSLO by evaporating discharging pump (13) again
Turn material in empty crystallizer (17), flash distillation cooling, which reaches, in vacuum crystallizer separates out crystallization after last crystallization temperature, pass through knot
The baiting valve blowing of brilliant device bottom is to centrifuge (20), and the product after centrifugal dehydration goes drying, centrifuge mother liquor to mother liquor tank
(21), flowed to finally by mother liquor blowback in MVR evaporation concentrators and continue to be concentrated by evaporation.
The utility model indirect steam cyclic process is realized in：Described comes from integral type vapor seperator
(7) indirect steam (temperature is at 60-100 DEG C) at the top of, which pools together, enters vapour compression machine (10), passes through both vapor compression
Temperature and pressure is raised after machine compression, and temperature can lift 13-19 DEG C, can carry out selection according to different materials different
The temperature difference, the indirect steam temperature then compressed can reach 73-119 DEG C, and the indirect steam after heating enters evaporation heater
(6) shell side continues to heat the cobalt sulfate solution being concentrated.Steam condensate (SC) is pooled to condensate water pot (24), then passes through condensation
Water pump (25) is got.
The utility model vacuum cool-down process is realized in：It is furnished with two at the top of described OSLO vacuum crystallizers (17)
Secondary steam outlet tube road, and be connected with steam condenser, the port of export connection vavuum pump of steam condenser, because vacuum is maximum
- 0.098mpa is may be designed as, so the vacuum in crystallizer can also maintain -0.05mpa~-0.098mpa, such OSLO is true
Empty crystallizer (17) temperature is minimum to be reduced to 28-30 DEG C；And with the flash distillation of high-temperature sulfuric acid cobalt liquor, knot can also be increased
Brilliant degree of supersaturation, is more beneficial for the growth of crystallization.
The utility model system thermal reclaims what is be realized in：Evaporative condenser coolant-temperature gage is higher, passes through condensate pump
(25) hot water got enters heating cobaltous sulfate weak solution in condensation water preheater (3), has reclaimed the partial heat energy of system.
During maintaining system vacuum, some vapor that vavuum pump is taken out of can be used for heated material, reclaim heat energy therein.
The utility model is realized in the long broad aspect of cobaltous sulfate crystalline solid：Most important three aspect of growing up of crystallization
Basic demand, i.e.,：The presence of residence time, crystallization motive force and nucleus, it is true that the present invention employs OSLO in terms of the residence time
Empty crystallizer, not only ensures the residence time of crystallization, and ensures the stable state that crystal is grown up so that clear liquid is circulated, and is matched somebody with somebody
There is fine crystal elimination device, it is ensured that the working condition of crystal；In terms of motive force is crystallized, mention and employ cooling and flash dual side
Formula, efficiency is greatly improved；In terms of nuclei growth：Maintain a more stable growth conditions so that crystallization fully growth.
Extract the vacuum in the indirect steam and maintenance system of flash distillation out using water circulation vavuum pump, it is ensured that the drop of solution
Temperature.Material is preheated using condensation water preheater, the waste heat of condensed water has been reclaimed, secondary steam is collected using compressor
Vapour, has reused the latent heat of indirect steam, has saved the energy, eliminated condensing plant, reduces the consumption of cooling water, reduction
The cost of enterprise, adds enterprise income, while environmental pollution can also be reduced.The application of Computer Control Technology is realized pair
The in good time detection and control of critical process parameters in important production process, realize the serialization and automation of cobalt salt production,
Production efficiency is improved, production cost is reduced, to improving product quality important in inhibiting.
Demister is provided with order to ensure indirect steam to be free of at the top of drop, the vapor seperator (7), passes through this foam removal
Device is purified indirect steam, it is ensured that the purity of indirect steam.
In order to ensure the condensation effect of vacuum crystallization indirect steam, described condenser needs to configure external cooling circulating water
System, the circulation water entrance temperature difference ensures to be not more than 6 DEG C.
In order to maintain to be sequentially provided with condenser (33) on the vacuum of system, the vacuum lead, it is knockout drum, true
Empty regulating valve (27), ball valve and vavuum pump (28).
In order to ensure the continuous and stably of concentrate discharging, discharging process is configured with discharging pump (13), and is configured with backflow
Control valve (14), prevents the interruption of discharging process and blocks discharge pipe.
In order to ensure the continuous of discharging process, centrifuge (20) need to configure the horizontal piston pusher for possessing continuous production function
Centrifuge, and need guest machine.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the utility model device.
Wherein, 1- stostes surge tank, 2- feed pumps, 3- condensation water preheater, 4- vapor preheaters, 5- evaporative recirculation pumps,
6- evaporation heaters, 7- vapor seperators, 8- pressure controllers, 9- fluid level controllers, 10- vapour compression machines, 11- life steam enter
Steam valve, 12- life steam preheatings inlet valve, 13- evaporation discharging pump I, 14- recycle control valve, 15- crystallisation cycles pump, 16- fine grains disappear
Except heater, 17-OSLO vacuum crystallizers, 18- mould liquid levels meter, 19- discharging regulating valve, 20- centrifuges, 21- mother liquor tanks,
22- mother liquors pump, 23- mother liquors discharging regulating valve, 24- condensate water pots, 25- condensate pumps, 26- condensations water regulating valve, 27- vacuum are adjusted
Section valve, 28- vavuum pumps, 29- chargings regulating valve, 30- circulating pumps feed pipe, 31- circulating pumps discharge nozzle, 32- evaporation feed liquors are followed
Endless tube, 33- condensers.
Embodiment
As shown in figure 1, for cobaltous sulfate efficient concentration and the apparatus system of continuous crystallisation, including integrated strip mechanical vapour
The evaporation concentration system of compression and the efficient crystallization system of OSLO vacuum crystallizations, it is characterised in that：Stoste surge tank (1) bottom goes out
Material mouth is connected with feed pump (2), and charging pump discharge is connected with the cold side import of condensation water preheater (3)；Condense water preheater (3)
Cold side outlet port be connected with the cold side import of vapor preheater (4), the cold side outlet port of vapor preheater (4) is connected to by pipeline
Mechanical steam recompression evaporation element；Vapor seperator (7) bottom of the mechanical steam recompression evaporation element has
Material mouth, is connected with circulating pump feed pipe (30), the other end and evaporative recirculation pump (5) the entrance phase of the circulating pump feed pipe (30)
Even, evaporative recirculation pump (5) outlet is connected with circulating pump discharge nozzle (31), the connected other end of circulating pump discharge nozzle (31) and evaporation
Heater (6) is connected, and evaporation heater (6) associated outlet is connected with evaporation feed liquor circulation pipe (32), circulating pump discharge nozzle
(31) import of other end connection vapor seperator (7)；There is indirect steam outlet at the top of the separation chamber, pass through indirect steam
Pipeline is connected with the import of vapour compression machine (10), and the outlet of vapour compression machine (10) passes through jet chimney and evaporation heater
(6) steam inlet is connected.The continuous vacuum crystallization unit crystallizer is configured with fine crystal elimination heater (16) and crystallization is followed
Indirect steam outlet at the top of ring pump (15), OSLO vacuum crystallizers (17) passes through pipeline and condenser (33) steam inlet
It is connected, condenser (33) steam (vapor) outlet pipeline is connected with vavuum pump (28), the connection centrifugation of OSLO vacuum crystallizers (17) drain hole
Machine (20), centrifuge (20) mother liquor outlet connection mother liquor tank (21), mother liquor tank (21) connection mother liquor pump (22) import, mother liquor pump
(22) by mother liquor reflux to crystallizer.
Cobaltous sulfate stoste after being buffered through original fluid container (1) uses feed pump (2) to evaporation after feeding regulating valve (29) regulation
It is fed in separator (7).Feed liquid is in pumping procedure, first condensed water preheater (3) preheating, while making with higher temperature
Discharged after condensed water cooling through condensing the cold end of water preheater, then feed liquid enters further preheats in raw vapor preheater (4),
The feed liquid being preheating to close to boiling point is driven into the tube side of evaporation heater (6) continuously through evaporative recirculation pump (5), with pipe outer wall
The heating steam of shell side carries out heat exchange, is then re-circulated into evaporation in vapor seperator (7), so constantly sulphur is realized in circulation
The concentration of sour cobalt feed liquid.Due to the effect of vacuum, indirect steam is sucked by vapour compression machine (10), compressed by mechanical steam
After the compression of machine (10), temperature and pressure all gets a promotion, and the indirect steam after heating enters back into evaporation heater (6)
The feed liquid that shell side heating is evaporated, so realizes the circulation of indirect steam, and the high temperature concentrate after concentration passes through evaporation
Vacuum crystallization system is arrived in discharging pump (13) discharging.Indirect steam steam outlet pipe road and condenser at the top of OSLO vacuum crystallizers (17)
(33) steam inlet is connected, the steam (vapor) outlet connection vavuum pump (28) of condenser (33), after vavuum pump is opened, OSLO vacuum
Crystallizer (17) inside and secondary pipeline whole interior all maintain negative pressure state.Come from the high temperature concentrate after evaporation to enter
Flashed rapidly in OSLO vacuum crystallizers (17), indirect steam is extracted, while temperature is reduced, cobalt sulfate crystallization analysis
Go out, with the increase of crystal amount, when 20%-50% scope of the magma in system than reaching setting, then discharge is to centrifugation
Machine (20) is gone to carry out separation of solid and liquid, and solid and mother liquor are completely separated under the action of the centrifugal force, and the mother liquor isolated is flowed into
Mother liquor tank (21), mother liquor is driven into MVR evaporation concentration systems by mother liquor pump (22) again to be continued to evaporate.Such process is to realize
Cobaltous sulfate efficient concentration and efficient crystallization are continuously produced.
25 DEG C, 12% cobalt sulfate solution enter in stoste surge tank (1), condensed water preheating is squeezed into by feed pump (2)
In device (3), preheated rear temperature reaches 70 DEG C, while making the condensed water of 95 DEG C of high temperature cool to 50 DEG C.Preheated by one-level
Feed temperature can't reach 85 DEG C of evaporating temperature, then be heated up again by vapor preheater (4), and temperature enters after reaching 85 DEG C
Into the circulating pump feed pipe (30) of high-efficiency evaporating concentration systems circulating pump, feed liquid is squeezed into continuously through evaporative recirculation pump (5)
To the tube side of evaporation heater (6), heat exchange temperature rising is carried out with 100 DEG C of high-temperature steams of pipe outer wall shell side, is then followed again
Ring enters vapor seperator (7) devaporation, and evaporating temperature is 85 DEG C, and so constantly the concentration of cobaltous sulfate feed liquid is realized in circulation.By
In the effect of vacuum, 85 DEG C of indirect steams are sucked by vapour compression machine (10), by the compression of mechanical vapor compressor (10)
Afterwards, temperature is raised to 100 DEG C, and the indirect steam after heating enters back into the feed liquid that the shell side heating of evaporation heater (6) is evaporated,
So realize the circulation of indirect steam.High temperature concentrate concentration after concentration reaches 38%-42%, and temperature is on 90 DEG C of left sides
The right side, then arrives vacuum crystallization system by evaporating discharging pump (13) discharging, comes from the high temperature concentrate after evaporation and enters knot
Flashed rapidly in brilliant device, the pressure that OSLO vacuum crystallizers are set is -0.095Mpa, the indirect steam steam outlet pipe road at top
It is connected with the steam inlet of condenser (33), the steam (vapor) outlet connection vavuum pump (28) of condenser (33), after vavuum pump is opened,
30 DEG C or so of indirect steam is drawn into condenser (33) and goes condensation.After indirect steam is extracted, cobaltous sulfate feed temperature drop
Low, cobalt sulfate crystallization is separated out, and with the increase of crystal amount, treats 20%-50% model of the magma in system than reaching setting
When enclosing, then discharge carries out separation of solid and liquid to centrifuge (20), and then the mother liquor temperature isolated is flowed into mother at 75 DEG C or so
Flow container (21), the mother liquor of high temperature is driven into MVR evaporation concentration systems by mother liquor pump (22) again continues dehydration by evaporation.
Claims (12)
1. it is a kind of for cobaltous sulfate efficient concentration and the apparatus system of continuous crystallisation, including continuous evaporation unit and continuous vacuum knot
Brilliant unit, it is characterised in that stoste surge tank (1) bottom discharge mouthful is connected with feed pump (2), charging pump discharge and condensed water are pre-
The cold side import of hot device (3) is connected, and the cold side outlet port of condensation water preheater (3) is connected with the cold side import of vapor preheater (4),
The cold side outlet port of vapor preheater (4) is connected to evaporation element, the vapor seperator (7) of the evaporation element by feed pipe
Discharging opening is arranged at bottom, is connected with circulating pump feed pipe (30), the other end and evaporative recirculation pump of the circulating pump feed pipe (30)
(5) entrance is connected, and evaporative recirculation pump (5) outlet is connected with circulating pump discharge nozzle (31), the other end of circulating pump discharge nozzle (31)
It is connected with evaporation heater (6), evaporation heater (6) outlet is connected with evaporation feed liquor circulation pipe (32), circulating pump discharge nozzle
(31) import of other end connection vapor seperator (7)；There is indirect steam outlet at the top of the vapor seperator, by secondary
Jet chimney is connected with the import of vapour compression machine (10), and the outlet of vapour compression machine (10) is heated by jet chimney with evaporation
Device (6) import is connected；OSLO vacuum crystallizers (17) are configured with fine crystal elimination heater (16) and crystallisation cycle pump (15), OSLO
Indirect steam outlet at the top of vacuum crystallizer (17) is connected by pipeline with condenser (33) steam inlet, condenser
(33) steam (vapor) outlet pipeline is connected with vavuum pump (28), OSLO vacuum crystallizers (17) drain hole connection centrifuge (20), centrifugation
Machine (20) mother liquor outlet connection mother liquor tank (21), mother liquor tank (21) connection mother liquor pump (22) import, mother liquor pump (22) returns mother liquor
Flow to crystallizer.
2. it is according to claim 1 for cobaltous sulfate efficient concentration and the apparatus system of continuous crystallisation, it is characterised in that institute
The continuous high-efficient concentration process stated uses the evaporator with mechanical vapor compressor, the secondary steaming that inspissator is evaporated
Vapour is all circulated after heat pump heats up to be reheated for evaporator, can improve the thermal efficiency more than 85%.
3. it is according to claim 1 for cobaltous sulfate efficient concentration and the apparatus system of continuous crystallisation, it is characterised in that institute
The fixed gas equalizing main for the evaporation heater (6) stated is docked with the indirect steam inlet pipeline of condenser (33).
4. it is according to claim 1 for cobaltous sulfate efficient concentration and the apparatus system of continuous crystallisation, it is characterised in that institute
The evaporation heater (6) stated can use tubular heat exchanger or plate type heat exchanger according to the change of input concentration.
5. it is according to claim 2 for cobaltous sulfate efficient concentration and the apparatus system of continuous crystallisation, it is characterised in that
Described mechanical vapor compressor includes high speed centrifugation vapour compression machine, low-speed centrifugal vapour compression machine, Roots's vapour pressure
Contracting machine or screw rod vapour compression machine.
6. it is according to claim 1 for cobaltous sulfate efficient concentration and the apparatus system of continuous crystallisation, it is characterised in that institute
The liquid level for stating vapor seperator (7) is indicated by fluid level controller (9), fluid level controller (9) control charging regulating valve
(29) come to meet the level stability of separator be setting liquid level.
7. it is according to claim 1 for cobaltous sulfate efficient concentration and the apparatus system of continuous crystallisation, it is characterised in that institute
The form for the condensation water preheater (3) stated includes plate type heat exchanger, tubular heat exchanger, spiral tube exchanger.
8. it is according to claim 1 for cobaltous sulfate efficient concentration and the apparatus system of continuous crystallisation, it is characterised in that institute
The OSLO vacuum crystallizers (17) stated are internally provided with circulation pipe and guide shell, and top is provided with vapor-liquid separation chamber.
9. it is according to claim 1 for cobaltous sulfate efficient concentration and the apparatus system of continuous crystallisation, it is characterised in that institute
The evaporative recirculation pump (5) stated need to crystallize supporting special axial-flow pump using salt chemical engineering and salt.
10. it is according to claim 1 for cobaltous sulfate efficient concentration and the apparatus system of continuous crystallisation, it is characterised in that
Described centrifuge (20) uses Horizontal Centrifuge.
11. it is according to claim 5 for cobaltous sulfate efficient concentration and the apparatus system of continuous crystallisation, it is characterised in that
The compression temperature rise of the vapour compression machine is 13-19 DEG C.
12. it is according to claim 1 for cobaltous sulfate efficient concentration and the apparatus system of continuous crystallisation, it is characterised in that
The liquid level of described mother liquor tank (21) is to realize constant liquis position control by the mother liquor regulating valve (23) that discharges, it is ensured that mother liquor pump it is steady
Fixed operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620869650.4U CN206553207U (en) | 2016-08-12 | 2016-08-12 | It is a kind of to be used for the apparatus system of cobaltous sulfate efficient concentration and continuous crystallisation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620869650.4U CN206553207U (en) | 2016-08-12 | 2016-08-12 | It is a kind of to be used for the apparatus system of cobaltous sulfate efficient concentration and continuous crystallisation |
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| Publication Number | Publication Date |
|---|---|
| CN206553207U true CN206553207U (en) | 2017-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620869650.4U Withdrawn - After Issue CN206553207U (en) | 2016-08-12 | 2016-08-12 | It is a kind of to be used for the apparatus system of cobaltous sulfate efficient concentration and continuous crystallisation |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115804A (en) * | 2016-08-12 | 2016-11-16 | 湖州惠鹏达节能环保科技有限公司 | A kind of for cobaltous sulfate efficient concentration with the apparatus system of continuous crystallisation |
| CN108006607A (en) * | 2017-12-28 | 2018-05-08 | 天津普恒康泰科技有限公司 | A kind of steam mechanical of indirect heat exchange recompresses energy-efficient vaporising device |
| CN108211394A (en) * | 2018-04-06 | 2018-06-29 | 无锡诚尔鑫环保装备科技有限公司 | It is a kind of to utilize waste heat steaming separator |
| CN108245921A (en) * | 2018-03-20 | 2018-07-06 | 河北鑫淘源环保科技有限公司 | The evaporation and crystallization system and process of one kind 5,5- Dimethyl Hydan mother liquors |
| CN108939601A (en) * | 2018-08-14 | 2018-12-07 | 徐晨 | A method of cobalt chloride is prepared by cobalt chloride solution evaporative crystallization |
| CN112516619A (en) * | 2021-02-18 | 2021-03-19 | 湖南永杉锂业有限公司 | Forced circulation evaporation device and method for slurry with crystals |
| CN114130055A (en) * | 2021-12-01 | 2022-03-04 | 江阴市江中设备制造有限公司 | Double-heat-pump evaporation crystallizer |
-
2016
- 2016-08-12 CN CN201620869650.4U patent/CN206553207U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115804A (en) * | 2016-08-12 | 2016-11-16 | 湖州惠鹏达节能环保科技有限公司 | A kind of for cobaltous sulfate efficient concentration with the apparatus system of continuous crystallisation |
| CN108006607A (en) * | 2017-12-28 | 2018-05-08 | 天津普恒康泰科技有限公司 | A kind of steam mechanical of indirect heat exchange recompresses energy-efficient vaporising device |
| CN108245921A (en) * | 2018-03-20 | 2018-07-06 | 河北鑫淘源环保科技有限公司 | The evaporation and crystallization system and process of one kind 5,5- Dimethyl Hydan mother liquors |
| CN108245921B (en) * | 2018-03-20 | 2024-03-12 | 河北鑫淘沅医药科技有限公司 | Evaporation crystallization system and process method of 5, 5-dimethyl hydantoin mother liquor |
| CN108211394A (en) * | 2018-04-06 | 2018-06-29 | 无锡诚尔鑫环保装备科技有限公司 | It is a kind of to utilize waste heat steaming separator |
| CN108939601A (en) * | 2018-08-14 | 2018-12-07 | 徐晨 | A method of cobalt chloride is prepared by cobalt chloride solution evaporative crystallization |
| CN112516619A (en) * | 2021-02-18 | 2021-03-19 | 湖南永杉锂业有限公司 | Forced circulation evaporation device and method for slurry with crystals |
| CN112516619B (en) * | 2021-02-18 | 2021-05-18 | 湖南永杉锂业有限公司 | Forced circulation evaporation device and method for slurry with crystals |
| CN114130055A (en) * | 2021-12-01 | 2022-03-04 | 江阴市江中设备制造有限公司 | Double-heat-pump evaporation crystallizer |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171013 Effective date of abandoning: 20180717 |