CN106861225B - A kind of continuous evaporating crystallizer and vapo(u)rization system of lightweight solid - Google Patents
A kind of continuous evaporating crystallizer and vapo(u)rization system of lightweight solid Download PDFInfo
- Publication number
- CN106861225B CN106861225B CN201710116274.0A CN201710116274A CN106861225B CN 106861225 B CN106861225 B CN 106861225B CN 201710116274 A CN201710116274 A CN 201710116274A CN 106861225 B CN106861225 B CN 106861225B
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- Prior art keywords
- cylinder
- continuous evaporating
- flare
- evaporating crystallizer
- tank body
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- 238000001704 evaporation Methods 0.000 title claims abstract description 50
- 239000007787 solid Substances 0.000 title claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 238000000605 extraction Methods 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 239000012452 mother liquor Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 3
- 239000003595 mist Substances 0.000 claims description 3
- 238000010025 steaming Methods 0.000 claims 1
- BCZXFFBUYPCTSJ-UHFFFAOYSA-L Calcium propionate Chemical compound [Ca+2].CCC([O-])=O.CCC([O-])=O BCZXFFBUYPCTSJ-UHFFFAOYSA-L 0.000 abstract description 11
- 238000002425 crystallisation Methods 0.000 abstract description 9
- 235000010331 calcium propionate Nutrition 0.000 abstract description 8
- 239000004330 calcium propionate Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 230000008025 crystallization Effects 0.000 abstract description 7
- 230000008020 evaporation Effects 0.000 abstract description 5
- 239000000243 solution Substances 0.000 description 13
- 239000000126 substance Substances 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000012265 solid product Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000011552 falling film Substances 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The present invention relates to the continuous evaporating crystallizers and vapo(u)rization system of a kind of lightweight solid, continuous evaporating crystallizer of the invention includes tank body, feed inlet, venthole, liquid outlet and magma extraction pipe, the middle part of tank body is arranged in the feed inlet, the upper end of tank body is arranged in the venthole, the lower end of tank body is arranged in the liquid outlet, middle part is provided with flare in the tank body, the flare big opening is downward, small opening up, the magma extraction pipe is located at the intracorporal one end of tank and is connected with the small opening of flare.Compared with prior art, continuous evaporating crystallizer provided by the invention produces magma from superjacent, and industrial evaporation crystallization is stablized in the serialization that continuous evaporating crystallizer of the invention is suitable for the lightweight solid that calcium propionate isodensity is less than liquid.Continuous evaporating crystallizer provided by the invention can ensure that solution heating evaporates two processes in the separation of spatial position with moisture.
Description
Technical field
The present invention relates to a kind of evaporated crystallization devices, are less than the continuous of the lightweight solid of liquid more particularly, to a kind of density
Crystallizing evaporator and vapo(u)rization system.
Background technique
Crystallization process is an important operation unit in chemical process, is an important ring for completing chemical products production
Section, also applies very extensive in other industrial departments.The density of solid product is typically larger than solution density, therefore industry at present
Upper general continuous crystallisation device such as Oslo crystallizer, DTB crystallizer are all to produce magma from the bottom of crystallisation vessel, using
Filter and/or drying process obtain solid product (Ye Tielin, " chemical crystallization Principle of Process and application ", Chemical Industry Press,
2006)。
Calcium propionate is a kind of important food additives, in the food industry using quite extensively.Propionic acid and calcium carbonate or
Calcium hydroxide react in water phase the aqueous solution of available calcium propionate, since the density of calcium propionate is less than solution density, because
This, generally takes the partition heating process of interval to evaporate most of moisture after reaction produces calcium propionate and obtains concentration magma
(US P4700000,1987；The Guangdong such as Jia Zhenyu chemical industry the 2nd phase page 93 in 1999), it can not achieve large-scale continuous stabilization
Production.Propionic acid calcium solution is passed through falling film evaporation device concentration (packaging with mechanical 3rd phase page 97 in 2015) by Chen Guangyu etc. can be with
The serialization of realization process, but solution heating carries out simultaneously with moisture evaporation, and it is a large amount of on heating surface to will lead to solid calcium propionate
Deposition.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of companies of lightweight solid
Continuous crystallizing evaporator and vapo(u)rization system, continuous evaporating crystallizer provided by the invention produces magma from superjacent, of the invention
Industrial evaporation crystallization is stablized in the serialization that continuous evaporating crystallizer is suitable for the lightweight solid that calcium propionate isodensity is less than liquid.This
The continuous evaporating crystallizer that invention provides can ensure that solution heating evaporates two processes in the separation of spatial position with moisture.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of continuous evaporating crystallizer of lightweight solid including tank body, the feed inlet being arranged on tank body, venthole, goes out
Liquid mouth, magma extraction pipe, and be arranged in the intracorporal demister of tank, the middle part of tank body is arranged in the feed inlet, and described goes out
The upper end of tank body is arranged in steam ports, and the lower end of tank body is arranged in the liquid outlet, and middle part is provided with loudspeaker in the tank body
Shape flaring, the flare big opening is downward, small opening up, and the magma extraction pipe is located at the intracorporal one end of tank
It is connected with the small opening of flare.The flare space above is gas-liquid separation zone, and described is tubaeform
Being flared following space is liquid-solid separating region.
The flare includes two parts connected up and down, and top is divided into the baffle of circular cone or polygonal pyramid shape,
Lower part is divided into cylinder or multi-panel cylinder, and the baffle upper end of circular cone or polygonal pyramid shape is the vertex of a cone, and lower end is cone bottom, and the vertex of a cone is formed
The cone bottom of the small opening of flare, cylinder or multi-panel cylinder and circular cone or the baffle of polygonal pyramid shape is welded on one,
The big opening of the lower ending opening of cylinder or multi-panel cylinder formation flare.
Preferably, the cone-apex angle for the vertex of a cone that the baffle upper end of circular cone or polygonal pyramid shape is formed is 100-160 °.
Preferably, the height of cylinder or multi-panel cylinder is 200-1000mm.
Preferably, the diameter of the big opening of the flare is 3-15 times of small opening diameter, wherein tubaeform
The small opening of flaring is equal with the magma extraction internal diameter of pipe.
The position of the feed inlet is higher than the upper end of cylinder or multi-panel cylinder.
The flare is fixed on tank interior by fixed thick stick.
The tank body includes a cylinder and the end socket for being connected to cylinder upper and lower ends, and the venthole is provided with upper end
End socket on, the liquid outlet is provided on the end socket of lower end, the feed inlet along cylinder side wall tangential direction be arranged,
The demister is arranged in the top of cylinder or in the end socket of cylinder upper end.Preferably, the cylinder is cylindrical tube
The end socket of body, cylinder both ends uses semielliptical shape structure or pyramidal structure.
Based on the vapo(u)rization system of continuous evaporating crystallizer of the present invention, including heater, continuous evaporating crystallizer, mistake
Filter and mixer set feed conduit and heat exchange pipeline, the external heat exchange cycle water of heat exchanger channels, mother tube in the heater
The outlet in road and the feed inlet of continuous evaporating crystallizer connect, and the entrance of filter and the magma of continuous evaporating crystallizer are produced and managed
Connection, the mother liquor outlet of filter, the liquid outlet of continuous evaporating crystallizer are connect with mixer, the outlet and heating of mixer
The entrance connection of feed conduit in device；
As common crystallizing evaporator, continuous evaporating crystallizer of the invention is used cooperatively with external heater,
Solution after heated device heating enters continuous evaporating crystallizer from feed inlet, and part steam turns to steam and removes folder through demister
It is discharged after the mist of band from venthole, the circular passage of liquid and crystal between tank body and flare flows downward, residual
It stays bubble to rise and enters the gas-liquid separation zone on flare；Liquid-solid separating region under flare, density
Small solid slowly floats and enters magma extraction pipe through flare, is flowed into filter in the form of magma, magma warp
After filter filtering, crystalline solids are collected, and the filtered mother liquor of magma flows into mixer, with the solution flowed out from liquid outlet and plus
The raw material entered is recycled into the entrance of feed conduit in heater after mixing in mixer.
Compared with prior art, continuous evaporating crystallizer provided by the invention produces magma from superjacent, of the invention
Industrial evaporation crystallization is stablized in the serialization that continuous evaporating crystallizer is suitable for the lightweight solid that calcium propionate isodensity is less than liquid.This
The continuous evaporating crystallizer that invention provides can ensure that solution heating evaporates two processes in the separation of spatial position with moisture.Together
When, structure of the invention form is simple, produce trumpet flared structure, magma along flare flow up during density it is small
In the solid particle of liquid, there are the concentration that inverse sedimentation helps to improve magma.
In addition, structure of the invention form is not suitable for crystallizer in negative-pressure operation, due to producing trumpet flared structure, in loudspeaker
Flowing pressure further decreases upwards in the flaring of shape, and siphon extraction is difficult, and mechanical pump extraction magma is then easy to that cavitation occurs.
Detailed description of the invention
Fig. 1 is continuous evaporating crystallizer structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of the vapo(u)rization system based on continuous evaporating crystallizer of the present invention.
Figure label, 1 feed inlet, 2 ventholes, 3 end sockets, 4 demisters, 5 cylinders, 6 fixed thick sticks, 7 flares, 8 is brilliant
Slurry extraction pipe, 9 liquid outlets, 11 heaters, 12 continuous evaporating crystallizers, 13 filters, 14 mixers.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
A kind of continuous evaporating crystallizer of lightweight solid, as shown in Figure 1, including tank body, the feed inlet being arranged on tank body
1, venthole 2, liquid outlet 9, magma produce pipe 8, and are arranged in the intracorporal demister 4 of tank, and feed inlet 1 is arranged in tank body
The upper end of tank body 1 is arranged in portion, venthole 2, and the lower end of tank body 1 is arranged in liquid outlet 9, and middle part is provided with tubaeform expansion in tank body
Mouth 7,7 big opening of flare is downward, small opening up, and magma extraction pipe 8 is located at the intracorporal one end of tank and flare 7
Small opening be connected.7 space above of flare is gas-liquid separation zone, and the space below flare 7 is that liquid divides admittedly
From area.
Wherein, tank body includes a cylinder 5 and the end socket 3 for being connected to 5 upper and lower ends of cylinder, and venthole 2 is provided with upper end
On end socket 3, liquid outlet 9 is provided on the end socket 3 of lower end, and feed inlet 1 is arranged along the side wall tangential direction of cylinder 5, and demister 4 is set
It sets in the top of cylinder 5 or in the end socket 3 of 5 upper end of cylinder.Cylinder 5 is cylindrical tube, and the end socket 3 at 5 both ends of cylinder uses
Semielliptical shape structure or pyramidal structure.
Flare 7 includes two parts connected up and down, and top is divided into the baffle of circular cone or polygonal pyramid shape, lower part
For cylinder or multi-panel cylinder, the baffle upper end of circular cone or polygonal pyramid shape is the vertex of a cone, and lower end is cone bottom, and the vertex of a cone forms tubaeform
The cone bottom of the small opening of flaring 7, cylinder or multi-panel cylinder and circular cone or the baffle of polygonal pyramid shape is welded on one, cylinder
Or the lower ending opening of multi-panel cylinder forms the big opening of flare 7.What the baffle upper end of circular cone or polygonal pyramid shape was formed
Preferably for 100-160 °, the height of cylinder or multi-panel cylinder is 200-1000mm to the cone-apex angle of the vertex of a cone.Flare 7
The diameter of big opening is 3-15 times of small opening diameter, wherein the internal diameter phase of the small opening of flare 7 and magma extraction pipe 8
Deng.The position of feed inlet 1 is higher than the upper end of cylinder or multi-panel cylinder.Flare 7 passes through fixed thick stick 6 and is fixed in tank body
Portion.
Based on the vapo(u)rization system of continuous evaporating crystallizer of the present invention, as shown in Fig. 2, H-IN and H-OUT indicates to heat in Fig. 2
The entrance of heat exchange pipeline and outlet in device 11, SOLID indicate magma gained crystalline solids after the filtering of filter 13, and M indicates brilliant
Slurry is mother liquid obtained after the filtering of filter 13, and FEED indicates the raw material that mixer 14 is added.The vapo(u)rization system include heater 11,
Continuous evaporating crystallizer 12, filter 13 and mixer 14, set feed conduit and heat exchange pipeline in heater 11, outside heat exchanger channels
Heat exchange cycle water is connect, the outlet of feed conduit is connect with the feed inlet 1 of continuous evaporating crystallizer 12, the entrance of filter 13 and company
The magma extraction pipe 8 of continuous crystallizing evaporator 12 connects, the liquid outlet 9 of the mother liquor outlet of filter 13, continuous evaporating crystallizer 12
It is connect with mixer 14, the outlet of mixer 14 is connect with the entrance of feed conduit in heater 11.
As common crystallizing evaporator, continuous evaporating crystallizer of the invention is used cooperatively with external heater,
Solution after heated device 11 heats enters continuous evaporating crystallizer 12 from feed inlet 1, and part steam turns to steam through demister 4
Remove entrainment mist after from venthole 2 be discharged, the circular passage of liquid and crystal between cylinder 5 and flare 7 to
Lower flowing, residual bubble rise and enter the gas-liquid separation zone on flare 7；Liquid under flare 7 is solid
Disengagement zone, the small solid of density, which slowly floats and enters magma through flare 7, produces pipe 8, is flowed into the form of magma
In filter 13, magma after the filtering of filter 13, collect by crystalline solids, and the filtered mother liquor of magma flows into mixer 14, with from
The raw material of solution and addition that liquid outlet 9 flows out is recycled into entering for feed conduit in heater 11 after mixing in mixer 14
Mouthful.
The continuous of propionic acid calcium solution is carried out using the crystallizing evaporator of the present embodiment, and using vapo(u)rization system shown in Fig. 2
Evaporative crystallization handles the propionic acid calcium solution of 15 cubic metre 20% (mass fraction) per hour, and top operating pressure 1.0bar is (often
Pressure), it is 3 meters of barrel diameter 8 meters high, top be hemispheric end socket, bottom be pyramidal structure end socket, feed inlet, liquid outlet and
0.4 meter of venthole diameter, magma produces 0.3 meter of pipe diameter, and magma produces outside the flare of pipe connection diametrically 2.5 meters,
2.5 meters of lower cylinder diameter, 0.4 meter of the height of flare, top use cone shape, and 140 degree of cone-apex angle, feed inlet exists
The middle position of crystallizer cylinder, feed inlet lower edge are higher by the cylinder of flare along 0.1 meter, and magma produces outside pipe
Outlet port is remained basically stable with crystallizer cylinder lower edge, and extraction magma enters filter centrifugal.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability
Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be of the invention
Within protection scope.
Claims (9)
1. a kind of continuous evaporating crystallizer of lightweight solid, including tank body, the feed inlet being arranged on tank body (1), venthole
(2), liquid outlet (9), magma extraction pipe (8), and be arranged in the intracorporal demister of tank (4), which is characterized in that the feed inlet
(1) middle part of tank body is set, and the venthole (2) setting exists in the upper end of tank body (1), the liquid outlet (9) setting
The lower end of tank body (1), the interior middle part of the tank body are provided with flare (7), the flare (7) big opening court
Under, small opening up, the magma extraction pipe (8) is located at the intracorporal one end of tank and is connected with the small opening of flare (7).
2. a kind of continuous evaporating crystallizer of lightweight solid according to claim 1, which is characterized in that described is tubaeform
Being flared (7) includes two parts connected up and down, and top is divided into the baffle of circular cone or polygonal pyramid shape, and lower part is divided into cylinder or more
The baffle upper end of face cylinder, circular cone or polygonal pyramid shape is the vertex of a cone, and lower end is cone bottom, and the vertex of a cone forms the small of flare (7)
The cone bottom of opening, cylinder or multi-panel cylinder and circular cone or the baffle of polygonal pyramid shape is welded on one, cylinder or multi-panel cylinder
The lower ending opening of body forms the big opening of flare (7).
3. a kind of continuous evaporating crystallizer of lightweight solid according to claim 2, which is characterized in that circular cone or polygonal pyramid
The cone-apex angle for the vertex of a cone that the baffle upper end of shape is formed is 100-160 °.
4. a kind of continuous evaporating crystallizer of lightweight solid according to claim 2, which is characterized in that cylinder or multi-panel
The height of cylinder is 200-1000mm.
5. a kind of continuous evaporating crystallizer of lightweight solid according to claim 2, which is characterized in that described is tubaeform
The diameter for being flared the big opening of (7) is 3-15 times of small opening diameter.
6. a kind of continuous evaporating crystallizer of lightweight solid according to claim 2, which is characterized in that the feed inlet
(1) position is higher than the upper end of cylinder or multi-panel cylinder.
7. a kind of continuous evaporating crystallizer of lightweight solid according to claim 2, which is characterized in that described is tubaeform
Flaring (7) passes through fixed thick stick (6) and is fixed on tank interior.
8. a kind of continuous evaporating crystallizer of lightweight solid according to claim 1, which is characterized in that the tank body packet
It includes a cylinder (5) and is connected to the end socket (3) of cylinder (5) upper and lower ends, the venthole (2) is provided with the end socket of upper end
(3) on, the liquid outlet (9) is provided on the end socket (3) of lower end, side wall tangent line of the feed inlet (1) along cylinder (5)
Direction setting, the demister (4) are arranged in the top in cylinder (5) or the end socket (3) in cylinder (5) upper end.
9. a kind of vapo(u)rization system based on continuous evaporating crystallizer described in claim 1, which is characterized in that including heater
(11), continuous evaporating crystallizer (12), filter (13) and mixer (14), set in the heater (11) feed conduit with
Heat exchange pipeline, the external heat exchange cycle water of heat exchanger channels, the outlet of feed conduit and the feed inlet (1) of continuous evaporating crystallizer (12)
The entrance of connection, filter (13) is connect with the magma of continuous evaporating crystallizer (12) extraction pipe (8), the mother liquor of filter (13)
It exports, the liquid outlet (9) of continuous evaporating crystallizer (12) is connect with mixer (14), the outlet of mixer (14) and heater
(11) the entrance connection of interior feed conduit；
Solution after heated device (11) heating enters continuous evaporating crystallizer (12) from feed inlet (1), and part steam turns to steaming
Vapour is discharged after the mist of demister (4) removing entrainment from venthole (2), and liquid and crystal are along tank body and flare (7)
Between circular passage flow downward, residual bubble rise and enter the gas-liquid separation zone on flare (7)；In loudspeaker
Shape is flared the liquid-solid separating region under (7), and the small solid of density slowly floats and enters magma extraction pipe through flare (7)
(8), it is flowed into filter (13) in the form of magma, magma after filter (13) are filtered, collect by crystalline solids, magma filtering
Mother liquor afterwards flows into mixer (14), mixes in mixer (14) with the solution flowed out from liquid outlet (9) and the raw material of addition
It is recycled into the entrance of heater (11) interior feed conduit afterwards.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710116274.0A CN106861225B (en) | 2017-03-01 | 2017-03-01 | A kind of continuous evaporating crystallizer and vapo(u)rization system of lightweight solid |
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| CN201710116274.0A CN106861225B (en) | 2017-03-01 | 2017-03-01 | A kind of continuous evaporating crystallizer and vapo(u)rization system of lightweight solid |
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| CN106861225B true CN106861225B (en) | 2019-02-01 |
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| CN107261544A (en) * | 2017-08-10 | 2017-10-20 | 合肥宁垣工程技术有限责任公司 | A kind of high-efficiency mould |
| CN107376401A (en) * | 2017-08-31 | 2017-11-24 | 北京金隅琉水环保科技有限公司 | A kind of lengthening formula crystallization cylinder and crystal system |
| CN107601747B (en) * | 2017-11-07 | 2019-12-06 | 青岛哈工资源环境技术有限公司 | oil-removing evaporative crystallizer for salt-containing oily wastewater |
| CN110732155B (en) * | 2019-11-14 | 2022-03-29 | 江苏润普食品科技股份有限公司 | Particle size controllable calcium propionate continuous evaporation crystallization process and device |
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| US6887452B1 (en) * | 2000-10-31 | 2005-05-03 | United States Filter Corporation | System and method for precipitating salts |
| CN102284189A (en) * | 2010-06-18 | 2011-12-21 | 大连化工研究设计院 | Novel slurry circular-type crystallizer and application thereof |
| CN102294135A (en) * | 2011-07-21 | 2011-12-28 | 无锡荣丰生物工程有限公司 | Crystal-magma separator device |
| CN204543621U (en) * | 2015-04-26 | 2015-08-12 | 宁波大学 | A kind of safe evaporation crystallization equipment |
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- 2017-03-01 CN CN201710116274.0A patent/CN106861225B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6887452B1 (en) * | 2000-10-31 | 2005-05-03 | United States Filter Corporation | System and method for precipitating salts |
| CN102284189A (en) * | 2010-06-18 | 2011-12-21 | 大连化工研究设计院 | Novel slurry circular-type crystallizer and application thereof |
| CN102294135A (en) * | 2011-07-21 | 2011-12-28 | 无锡荣丰生物工程有限公司 | Crystal-magma separator device |
| CN204543621U (en) * | 2015-04-26 | 2015-08-12 | 宁波大学 | A kind of safe evaporation crystallization equipment |
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