CN107970638A - The method for crystallising of crystal separator and solid-liquid fluid-mixing - Google Patents
The method for crystallising of crystal separator and solid-liquid fluid-mixing Download PDFInfo
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- CN107970638A CN107970638A CN201610921941.8A CN201610921941A CN107970638A CN 107970638 A CN107970638 A CN 107970638A CN 201610921941 A CN201610921941 A CN 201610921941A CN 107970638 A CN107970638 A CN 107970638A
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- 239000013078 crystal Substances 0.000 title claims abstract description 81
- 239000007788 liquid Substances 0.000 title claims abstract description 57
- 238000002156 mixing Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 56
- 239000002245 particle Substances 0.000 claims abstract description 40
- 238000005192 partition Methods 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000012535 impurity Substances 0.000 claims abstract description 20
- 238000002425 crystallisation Methods 0.000 claims abstract description 15
- 230000008025 crystallization Effects 0.000 claims abstract description 15
- 238000004062 sedimentation Methods 0.000 claims description 25
- 239000012530 fluid Substances 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000011229 interlayer Substances 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical class [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 7
- 239000000243 solution Substances 0.000 description 5
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 238000005660 chlorination reaction Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 235000011132 calcium sulphate Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001640 fractional crystallisation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000009938 salting Methods 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D2009/0086—Processes or apparatus therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of crystal separator and the method for crystallising of solid-liquid fluid-mixing, cylinder (1) bottom of crystal separator is equipped with water inlet (11) and crystal region (C), the Multistage settling area to arrange along short transverse is equipped with barrel chamber, solid-liquid fluid-mixing goes out solid particle followed by decanting zones at different levels and class settling from the bottom to top.Partition plate (5) is equipped with barrel chamber to be separated out underlying level-one decanting zone (A) and two level decanting zone (B) above, solid-liquid fluid-mixing initially enters growth crystallization in crystal region, the relatively large a part of flows downward of proportion separates out the first crystalline solid into level-one decanting zone, and the relatively small another part of proportion travels up to two level decanting zone to continue to settle.The present invention can go out the solid particle that granularity and weight are successively decreased, especially impurity particle by class settling in decanting zones at different levels, obtain the different different stage crystalline solid of granularity, quality so as to separate, and the purity higher of crystalline solid, impurity content are low.
Description
Technical field
The invention belongs to technical field of chemical.
Background technology
The common equipment for being useful for crystallization operation, i.e. crystal separator in chemical industry equipment, it is generally divided into crystallizing evaporator
And cooler crystallizer, supersaturation crystallization is realized by evaporation or the type of cooling respectively.However, solution to be crystallized is in existing crystallization
Separated mostly merely through single crystallization in separator, this is applicable for the only pure solution containing single crystalline solid, but has been served as
In saturated solution during foreign particle containing other small particles, then crystalliser feet aggregation can be unified in, so as to influence crystalline solid
Quality, this is particularly obvious in salting liquid is crystallized.
The content of the invention
For the drawbacks described above or deficiency of the prior art, the present invention provides a kind of efficient crystal separator and utilizes and is somebody's turn to do
Crystal separator realizes the method for crystallising of solid-liquid fluid-mixing, can effectively be divided the foreign particle of the small particle in fluid
From ensureing the high-purity and quality of crystalline solid.
To achieve the above object, according to an aspect of the invention, there is provided a kind of crystal separator, the Crystallization Separation
The cylinder body bottom of device is equipped with water inlet and crystal region, and the solid-liquid fluid-mixing entered by the water inlet is circulated in the crystal region
Flowing crystallization, wherein, the Multistage settling area to arrange along short transverse, the solid-liquid mixed flow are additionally provided with the barrel chamber of the cylinder
Body can go out solid particle followed by decanting zones at different levels and class settling from the bottom to top.
For example, can be equipped with partition plate in the barrel chamber, which is separated out underlying level-one decanting zone and above
Two level decanting zone, the partition plate is equipped with water stream channel to connect the level-one decanting zone and the two level decanting zone, the knot
Crystalline region is arranged on the lower section of the partition plate, and the level-one decanting zone is located at the bottom of the crystal region.
Preferably, the partition plate is circular cone plate open upwards, the solid particles sediment in the two level decanting zone to institute
State on partition plate and collect downwards along the inner cone of the partition plate.
Preferably, the crystal separator further include for discharge sedimentation solid particle suction tube, the suction tube from
The center collection region of the inner conical surface of the partition plate extends outside towards the cylinder.
Preferably, the crystal separator further includes the sedimentation inclined plate for crystallizing sedimentation, which is arranged on institute
State in two level decanting zone and positioned at the top of the partition plate.
Preferably, the solid particle includes crystalline solid and/or impurity particle, the solid of the two level decanting zone sedimentation
The average grain diameter of grain and average particle specific gravity are respectively less than the solid particle of the level-one decanting zone sedimentation.
Preferably, the crystal separator further includes axial flow stirrer, the axial flow stirrer drive solid-liquid fluid-mixing to
Upper flowing.
Preferably, the crystal region is equipped with inner draft tube, external flow guiding cylinder and the axial flow stirrer, the inner draft tube and
External flow guiding cylinder is coaxial and spaced radial is arranged, the level-one decanting zone is located at below the bottom of the external flow guiding cylinder, described to lead outside
The top of flow cartridge extends towards the partition plate, and the inner draft tube extends upwardly into the external flow guiding cylinder from the bottom of the barrel chamber
Interior, the axial flow stirrer is stretched into the inner draft tube from the bottom of the cylinder；
Wherein, from the water inlet enter solid-liquid fluid-mixing under the stirring action of the axial flow stirrer from described
The bottom of inner draft tube enters in the inner draft tube and is flowed out from top, a part for the solid-liquid fluid-mixing of top outflow
Be formed as the relatively small suspension of proportion, the suspension on the water stream channel by wearing to the two level decanting zone, top stream
Footpath of the relatively large another part of the proportion of the solid-liquid fluid-mixing gone out between the inner draft tube and external flow guiding cylinder
The level-one decanting zone is downwardly into interlayer barrel chamber and settles out crystalline solid, separates out the solid-liquid fluid-mixing after crystalline solid
Circulation flows back into the bottom of the inner draft tube.
Preferably, the cylinder includes conical lower section, which is equipped with crystalline solid outlet, and the level-one is sunk
The inner cone of crystalline solid along the conical lower section that drop area separates out is collected to the crystalline solid outlet downwards.
Preferably, the top of the external flow guiding cylinder is in the cone tube shape of upward necking and abuts the bottom surface of the partition plate, institute
State the join domain abutted with the top of the external flow guiding cylinder that water stream channel is penetratingly formed at the partition plate.
According to another aspect of the present invention, a kind of method for crystallising of solid-liquid fluid-mixing is additionally provided, including：
Step 1：Solid-liquid fluid-mixing is passed through to the cylinder body bottom of crystal separator；
Step 2：Crystal region is set in the cylinder body bottom of the crystal separator, and interior circulation is formed in the crystal region
Runner, the solid-liquid fluid-mixing circulate in the inner recirculation flow road；And
Step 3：Level-one decanting zone is set in the lower section of the crystal region, sets two level to sink in the top of the crystal region
Area drops, and the relatively large part of the proportion in the solid-liquid fluid-mixing of the crystal region flows downward to the level-one sedimentation
The first crystalline solid is separated out in area, the relatively small another part of proportion travels up to the two level decanting zone to continue to settle.
Preferably, the method for crystallising of the solid-liquid fluid-mixing further includes：
Step 4：Continue to go upward in the relatively small part of proportion in the solid-liquid fluid-mixing of the two level decanting zone
To settle step by step in higher level decanting zone.
Preferably, the solid-liquid fluid-mixing is the supersaturated fluid with impurity.
Through the above technical solutions, Multistage settling area is provided with due to separating in the crystal separator of the present invention, to upstream
Dynamic solid-liquid fluid-mixing passes through decanting zones at different levels successively, so as in decanting zones at different levels class settling go out granularity and weight
The solid particle to successively decrease, especially impurity particle, so as to separate the crystallization for obtaining the different different stage of granularity, quality
Body, and the purity higher of crystalline solid, impurity content are low.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Attached drawing is for providing a further understanding of the present invention, and a part for constitution instruction, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the structure principle chart according to a kind of crystal separator of preferred embodiment of the present invention；
Fig. 2 is the structure principle chart according to the crystal separator of another preferred embodiment of the present invention.
The description of reference numerals of the present invention
1 cylinder, 2 external flow guiding cylinder
3 inner draft tube, 4 axial flow stirrer
5 partition plate, 6 suction tube
7 sedimentation 11 water inlets of inclined plate
12 water outlet, 13 crystalline solid outlet
A level-ones decanting zone B two levels decanting zone
C crystal regions
Embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
In the present invention, in the case where not making conversely explanation, the noun of locality such as " upper and lower, top, bottom " used is typically pin
For direction shown in the drawings either for each component mutual alignment relation on vertical, vertical or gravity direction
Word is described；" inside and outside " is commonly referred to as inside and outside the chamber for chamber.The above-mentioned noun of locality is for the ease of understanding this
Invent and define, because without forming limiting the scope of the invention.
As shown in Figure 1 or 2, the present invention provides a kind of new efficient crystallization separator, the cylinder of the crystal separator
1 bottom of body is equipped with water inlet 11, is equipped with the Multistage settling area to arrange along short transverse in the barrel chamber of cylinder 1, water inlet 11 enters
Solid-liquid fluid-mixing (solution i.e. to be crystallized) go out solid particle from the bottom to top followed by decanting zones at different levels and class settling.
Idea of the invention is that the class settling of solid-liquid fluid-mixing is realized, especially with the to be crystallized molten of impurity
Liquid, at least can respectively precipitate and isolate impurity and purer crystalline solid.
According to the property of solution to be crystallized and crystallization process needs, some grades of decanting zone can be accordingly set.As an example,
In the embodiment shown in Fig. 1 and Fig. 2, two-stage decanting zone is equipped with the cylinder 1 of crystal separator.By being separated out between partition plate 5
Underlying level-one decanting zone A and two level decanting zone B above, partition plate 5 are equipped with water stream channel, level-one decanting zone A's
Suspension (such as the lighter liquid containing impurity of proportion) is raised up to two level decanting zone B, level-one decanting zone A by water stream channel
The crystalline solid of precipitation is then deposited in bottom, can be discharged by crystalline solid outlet 13.
Wherein, partition plate 5 is preferably circular cone plate open upwards, so that the solid particle in the B of two level decanting zone can be settled down to
Collect downwards on partition plate 5 and along the inner cone of partition plate 5.At this time, impurity or the lighter little particle crystalline solid of proportion can sink in two level
Area's B natural subsidences are dropped, and are collected in 5 bottom of partition plate.Further, by set diagram suction tube 6, the suction tube 6 from every
The center collection region of the inner conical surface of plate 5 extends towards outside cylinder 1, so as to discharge consolidating of being settled in the B of two level decanting zone
Body particle, such as impurity or brief summary crystal.
Certainly, two level decanting zone B can be above-mentioned natural subsidence, can also use other separate modes, such as ability
Inclined plate sedimentation well known to field technique personnel.I.e. as shown in Fig. 2, crystal separator further includes the sedimentation inclined plate for crystallizing sedimentation
7, which is arranged in the B of two level decanting zone and positioned at the top of partition plate 5.Fluid in the B of two level decanting zone is by sedimentation
During inclined plate 7, it is easier to separate out crystalline solid and impurity.Since inclined plate sedimentation and its principle, sedimentation 7 structure of inclined plate etc. are this area
It is not described in detail herein known to technical staff.
Since water inlet 11 is located at the lower section of water outlet 12, solid-liquid fluid-mixing flows from bottom to top, with realize fractional crystallization,
Sedimentation, thus the average grain diameter of the solid particle of two level decanting zone B sedimentations and average particle specific gravity should be less than level-one decanting zone A
The solid particle of sedimentation.When solid particle includes crystalline solid and impurity particle, impurity particle can fall to two level decanting zone B,
Level-one decanting zone A then settles high-purity, large particle crystal body.Wherein, the stream of solid-liquid fluid-mixing from bottom to top is realized for driving
It is dynamic, axial flow stirrer 4 (or upper pushing-type blender) is additionally provided with crystal separator, to drive solid-liquid fluid-mixing in interior water conservancy diversion
Flowed up in cylinder 3.
Preferably, crystal region C is additionally provided with the barrel chamber of cylinder 1, crystal region C is equipped with inner draft tube 3, external flow guiding cylinder 2 and axis
Stream blender 4, inner draft tube 3 and external flow guiding cylinder 2 are coaxially and spaced radial is arranged, level-one decanting zone A is located at the bottom of external flow guiding cylinder 2
End lower section, the top of external flow guiding cylinder 2 extend towards partition plate 5, and inner draft tube 3 is extended upwardly into external flow guiding cylinder 2 from the bottom of barrel chamber,
Axial flow stirrer 4 is stretched into inner draft tube 3 from the bottom of cylinder 1.
The solid-liquid fluid-mixing entered from water inlet 11 is under the stirring action of axial flow stirrer 4 from the bottom of inner draft tube 3
End enters in the inner draft tube 3 and is flowed out from top, and a part for the solid-liquid fluid-mixing of top outflow is formed as suspension, should
Suspension is led by being worn on water stream channel to two level decanting zone B, another part of the solid-liquid fluid-mixing of top outflow via interior
Radial direction interlayer barrel chamber between flow cartridge 3 and external flow guiding cylinder 2 is downwardly into level-one decanting zone A and settles out crystalline solid, separates out crystallization
Solid-liquid fluid-mixing circulation after body flows back into the bottom of inner draft tube 3.
As it can be seen that solid-liquid fluid-mixing forms inner cycle channel in crystal region C, crystalline solid is constantly long in inner cycle channel
Greatly.The proportion of fluid containing crystalline solid is relatively large, it certainly will flow downward to level-one decanting zone A on the top of inner draft tube 3
In to separate out the first crystalline solid, the proportion of the fluid containing impurity is relatively small, then can travel up to two level decanting zone B to separate out
Second crystalline solid settles out impurity solid particle etc..
In the A of level-one decanting zone, the conical lower section of cylinder 1 is equipped with crystalline solid outlet 13, what level-one decanting zone A was separated out
Crystalline solid can be collected to crystalline solid outlet 13 downwards along the inner cone of conical lower section, can periodically discharge.Meanwhile external flow guiding cylinder
2 top is in the cone tube shape of upward necking and abuts the bottom surface of partition plate 5, and water stream channel (not shown) is penetratingly formed at partition plate 5
The join domain abutted with the top of external flow guiding cylinder 2.Water stream channel can be any structure type such as pore, annular groove, also not
It is limited to be arranged on above-mentioned join domain, as long as can realize that two-stage decanting zone current lead to and without prejudice to the sedimentation of two level decanting zone B
Movement of the particle on 5 wall of partition plate.In addition, inner draft tube 3, external flow guiding cylinder 2 and axial flow stirrer 4 etc. can connect installation
To the inner wall of cylinder 1.
To sum up, crystal separator of the invention is divided into crystal region C and two-stage decanting zone.By taking supersaturated strong brine as an example, its
In crystal region, C carries out sufficient circulation crystallization, and crystal salt carries out sedimentation separation in level-one decanting zone A, and the particle that proportion is lighter
Then enter two level decanting zone B, in two level decanting zone, B is settled, and isolates the foreign particle of small particle, is come together on partition plate 5,
Periodically discharged by suction tube 6.The purity higher for the crystal salt that the slave level-one decanting zone A being achieved in that is settled out.
On the basis of above-mentioned crystal separator, the present invention further correspondingly provides a kind of crystallization side of solid-liquid fluid-mixing
Method, including：
Step 1：Solid-liquid fluid-mixing is passed through to 1 bottom of cylinder of crystal separator；
Step 2：Crystal region C is set in 1 bottom of cylinder of crystal separator, and inner recirculation flow is formed in the C of the crystal region
Road, solid-liquid fluid-mixing circulate in interior circulatory flow；And
Step 3：In crystal region, the lower section of C sets level-one decanting zone A, and in crystal region, the top of C sets two level decanting zone B,
The relatively large part of proportion in the solid-liquid fluid-mixing of crystal region C, which is flowed downward in the A of level-one decanting zone, separates out the first knot
Crystal, the relatively small another part of proportion travel up to two level decanting zone B to separate out the second crystalline solid or settle out impurity
Grain.
Certainly, the invention is not restricted to carry out two-stage sedimentation, it can also realize that more stages settles.I.e. above-mentioned solid-liquid fluid-mixing
Method for crystallising may also include：
Step 4：Continue to go upward to higher level in the relatively small part of proportion in the solid-liquid fluid-mixing of two level decanting zone B
To settle step by step in decanting zone.
It should be noted that above-mentioned solid-liquid fluid-mixing is the supersaturated fluid with impurity.It is molten with supersaturated calcium sulfate
Exemplified by liquid, the chlorination ferric flocculant of 50ppm is added in the supersaturated calcium sulphate soln for entering crystal separator, is tied entering
After brilliant separator, calcium sulfate salt is sufficiently crystallized by the inner cycle channel of crystal region C, and is obtained in level-one decanting zone A
Separation, obtains the calcium sulfate salt crystal of bulky grain.And molysite is formed outstanding since density is smaller under the action of axial flow stirrer 4
Turbid enters two level decanting zone B, and the molysite crystal grain of proportion smaller is finally settled out on partition plate 5.Settled compared to level-one
The prior art, with chlorination ferric flocculant introduce molysite due to long-time flocculate and sedimentation, be most deposited at last with calcium sulfate
The bottom of crystallizer, and the present invention is used, more than 65% molysite is separated in the B of two level decanting zone, the product of calcium sulfate salt
Matter significantly improves.
The preferred embodiment of the present invention is described in detail above in association with attached drawing, still, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the present invention, a variety of letters can be carried out to technical scheme
Monotropic type, for example, cylinder 1 bottom be not limited to cone or polygon prism cone etc., these simple variants belong to
Displacement that those skilled in the art can readily occur in or conventional, thus belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (13)
1. a kind of crystal separator, cylinder (1) bottom of the crystal separator is equipped with water inlet (11) and crystal region (C), by
The solid-liquid fluid-mixing that the water inlet (11) enters circulates crystallization at the crystal region (C), wherein, the cylinder (1)
Barrel chamber in be additionally provided with along short transverse arrange Multistage settling area, the solid-liquid fluid-mixing can from the bottom to top followed by
Simultaneously class settling goes out solid particle for decanting zones at different levels.
2. crystal separator according to claim 1, wherein, partition plate (5), the partition plate (5) interval are equipped with the barrel chamber
Go out underlying level-one decanting zone (A) and two level decanting zone (B) above, the partition plate (5) be equipped with water stream channel with
The level-one decanting zone (A) and the two level decanting zone (B) are connected, the crystal region (C) is arranged under the partition plate (5)
Side, the level-one decanting zone (A) are located at the bottom of the crystal region (C).
3. crystal separator according to claim 2, wherein, the partition plate (5) is circular cone plate open upwards, described two
Collect downwards on solid particles sediment to the partition plate (5) in level decanting zone (B) and along the inner cone of the partition plate (5).
4. crystal separator according to claim 2, wherein, the crystal separator is further included for discharging consolidating for sedimentation
The suction tube (6) of body particle, the suction tube (6) is from the center collection region of the inner conical surface of the partition plate (5) towards the cylinder
(1) extend outside.
5. crystal separator according to claim 2, wherein, the crystal separator is further included for crystallizing the heavy of sedimentation
Drop angle plate (7), the sedimentation inclined plate (7) are arranged in the two level decanting zone (B) and positioned at the top of the partition plate (5).
6. crystal separator according to claim 2, wherein, the solid particle includes crystalline solid and/or impurity particle,
The average grain diameter of the solid particle of two level decanting zone (B) sedimentation and average particle specific gravity are respectively less than the level-one decanting zone
(A) solid particle of sedimentation.
7. the crystal separator according to any one in claim 2~6, wherein, the crystal separator further includes axis
Blender (4) is flowed, the axial flow stirrer (4) driving solid-liquid fluid-mixing flows up.
8. crystal separator according to claim 7, wherein, the crystal region (C) is equipped with inner draft tube (3), outer water conservancy diversion
Cylinder (2) and the axial flow stirrer (4), the inner draft tube (3) and external flow guiding cylinder (2) are coaxial and spaced radial is arranged, described
Level-one decanting zone (A) is located at below the bottom of the external flow guiding cylinder (2), and the top of the external flow guiding cylinder (2) is towards the partition plate
(5) extend, the inner draft tube (3) is extended upwardly into the external flow guiding cylinder (2) from the bottom of the barrel chamber, the axis stream stirring
Device (4) is stretched into the inner draft tube (3) from the bottom of the cylinder (1)；
Wherein, from the water inlet (11) enter solid-liquid fluid-mixing under the stirring action of the axial flow stirrer (4) from
The bottom of the inner draft tube (3) enters in the inner draft tube (3) and is flowed out from top, the solid-liquid mixed flow of top outflow
A part for body is formed as the relatively small suspension of proportion, which is settled by being worn on the water stream channel to the two level
Area (B), relatively large another part of proportion in the solid-liquid fluid-mixing of top outflow via the inner draft tube (3) with
Radial direction interlayer barrel chamber between external flow guiding cylinder (2) is downwardly into the level-one decanting zone (A) and settles out crystalline solid, separates out crystallization
Solid-liquid fluid-mixing circulation after body flows back into the bottom of the inner draft tube (3).
9. crystal separator according to claim 8, wherein, the cylinder (1) includes conical lower section, the conical bottom
Portion is equipped with crystalline solid outlet (13), inner conical surface of the crystalline solid that the level-one decanting zone (A) separates out along the conical lower section
The crystalline solid outlet (13) is collected to downwards.
10. crystal separator according to claim 8, wherein, the top of the external flow guiding cylinder (2) is in the circle of upward necking
Cone cylinder shape and the bottom surface for abutting the partition plate (5), the water stream channel are being penetratingly formed at the partition plate (5) with the outer water conservancy diversion
The join domain that the top of cylinder (2) abuts.
11. a kind of method for crystallising of solid-liquid fluid-mixing, including：
Step 1：Solid-liquid fluid-mixing is passed through to cylinder (1) bottom of crystal separator；
Step 2：In cylinder (1) bottom of the crystal separator, crystal region (C) is set, and in the crystal region (C) in formation
Circulatory flow, the solid-liquid fluid-mixing circulate in the inner recirculation flow road；And
Step 3：Level-one decanting zone (A) is set in the lower section of the crystal region (C), two are set in the top of the crystal region (C)
Level decanting zone (B), the relatively large part of proportion in the solid-liquid fluid-mixing of the crystal region (C) flow downward to institute
State and the first crystalline solid is separated out in level-one decanting zone (A), the relatively small another part of proportion travels up to the two level decanting zone
(B) to continue to settle.
12. the method for crystallising of solid-liquid fluid-mixing according to claim 11, wherein, the method for crystallising further includes：
Step 4：Continue to go upward in the relatively small part of proportion in the solid-liquid fluid-mixing of the two level decanting zone (B)
To settle step by step in higher level decanting zone.
13. the method for crystallising of solid-liquid fluid-mixing according to claim 11, wherein, the solid-liquid fluid-mixing be with
The supersaturated fluid of impurity.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109574307A (en) * | 2018-12-16 | 2019-04-05 | 金科环境股份有限公司 | Remove the device of whole hardness in reverse osmosis concentrated water |
| CN111392956A (en) * | 2020-05-15 | 2020-07-10 | 北京朗新明环保科技有限公司 | Induced crystallization chemical softening device |
| CN115253361A (en) * | 2022-08-01 | 2022-11-01 | 森松（江苏）重工有限公司 | Crystallization system and crystallization method of lithium hexafluorophosphate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000072436A (en) * | 1998-09-04 | 2000-03-07 | Mitsubishi Chemicals Corp | Production of coarse ammonium sulfate crystal |
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| JP2000072436A (en) * | 1998-09-04 | 2000-03-07 | Mitsubishi Chemicals Corp | Production of coarse ammonium sulfate crystal |
| WO2002062705A2 (en) * | 2000-10-31 | 2002-08-15 | United States Filter Corporation | System and method for precipitating salts |
| CN2587488Y (en) * | 2002-12-09 | 2003-11-26 | 上海源脉工贸发展有限公司 | Reaction and separation integrated apparatus for seed crystal method |
| CN1747770A (en) * | 2002-12-16 | 2006-03-15 | 纳幕尔杜邦公司 | Form the device and method of crystalline thing/particulate |
| CN102210940A (en) * | 2010-04-07 | 2011-10-12 | 中川工程顾问(上海)有限公司 | Crystallizing device and crystallizing method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109574307A (en) * | 2018-12-16 | 2019-04-05 | 金科环境股份有限公司 | Remove the device of whole hardness in reverse osmosis concentrated water |
| CN111392956A (en) * | 2020-05-15 | 2020-07-10 | 北京朗新明环保科技有限公司 | Induced crystallization chemical softening device |
| CN111392956B (en) * | 2020-05-15 | 2022-11-08 | 国能朗新明环保科技有限公司 | Induced crystallization chemical softening device |
| CN115253361A (en) * | 2022-08-01 | 2022-11-01 | 森松（江苏）重工有限公司 | Crystallization system and crystallization method of lithium hexafluorophosphate |
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