CN206167977U

CN206167977U - Crystallizer

Info

Publication number: CN206167977U
Application number: CN201621133330.9U
Authority: CN
Inventors: 陈思伟
Original assignee: ABA High Lithium Material Co Ltd
Current assignee: Sichuan Siteri Lithium Industry Co.,Ltd.
Priority date: 2016-10-18
Filing date: 2016-10-18
Publication date: 2017-05-17
Anticipated expiration: 2026-10-18

Abstract

The utility model discloses a crystallizer belongs to crystallization equipment field, and one kind is provided and the interior liquid circulation speed of crystallization equipment can be improved effectively, and then the crystallizer in order to improve crystallization efficiency, include from last consecutive last cavity, heat transfer room and crystallization chamber extremely down, still include honeycomb duct and swash plate, the honeycomb duct passes the heat transfer room, the swash plate is split into the circulation cavity that lies in the top with crystallization chamber and is lain in the crystallization cavity of below, at the lower of circulation cavity be provided with and the circulate circulation fluid entry of cavity intercommunication, the highest point of crystallization cavity be provided with with the outlet of circulation hydraulic of crystallization cavity intercommunication, circulation fluid entry and outlet of circulation hydraulic pass through the circulation pipeline intercommunication to be provided with the circulating pump on circulation pipeline. The utility model discloses a circulating pump provides compulsory circulation power for whole crystallizer, can guarantee consequently that the interior liquid circulation speed of crystallizer is very fast and circulation flow rate is great, and then guarantee whole crystallizer's crystallization efficiency.

Description

A kind of crystallizer

Technical field

This utility model is related to crystallizer field, more particularly to a kind of crystallizer that can carry out continuous crystallisation.

Background technology

Crystallizer is a kind of equipment for product crystallization operation, is generally divided into crystallizing evaporator and cooler crystallizer two Kind.A kind of " interior circulation evaporative crystallization is disclosed in the patent documentation (hereinafter referred to as document 1) of Publication No. CN202155069U Device " (the application is quoted in full in this).Crystallizer disclosed in the document 1, it is crystallized relative to traditional outer circulation For device, device structure can be simplified, while the power consumption of equipment operation can be reduced greatly, and can be efficiently solved using tradition Outer circulation crystallizer when easily there is crystallization deposition in corresponding pipeline, equipment due to shutdown and cause whole crystallization The problem that equipment cannot be turned back on.But, the crystallizer in above-mentioned document 1 yet suffers from following problem：

1st, the interior circulation power in crystallizer is less, even if adopting in the document 1 has propeller agitator also to be difficult to Produce the fluid flow of enough speed in guide shell, and then have influence on the cycle rate of whole crystallizer, cause crystallization effect Rate is relatively low；

2nd, the separating effect of the fine crystalline granule to being mingled with the solution Jing after heat exchanger tube heat exchange is poor, causes big portion Crystalline particle is divided to flow in the cylinder of top；

3rd, drive the mechanism stirred to be arranged on the bottom of lower shell, cause the draw operation for crystallizing inconvenient；

4th, the lower end of guide shell directly rushes at lower shell bottom, and the crystal region for being easily pointed to lower shell bottom causes punching Hit, the crystallization for making deposition is broken up, cause the deposition effect for crystallizing poor, and then affect the crystallized stock quality discharged.

Utility model content

The technical problem that this utility model is solved is to provide one kind and can effectively improve liquid circulation speed in crystallizer Rate, and then to improve the crystallizer of crystalline rate.

This utility model solves the technical scheme that its technical problem adopted：A kind of crystallizer, including from top to bottom according to Secondary connected upper chamber, Heat Room and crystallisation chamber；Upper perforated plate is provided between upper chamber and Heat Room, in crystallisation chamber and heat exchange Lower perforated plate is provided between room；Heat exchange interior is provided with heat exchanger tube, and the lower end of heat exchanger tube through after lower perforated plate with crystallization Room connects, and the upper end of heat exchanger tube connects through after upper perforated plate with upper chamber；Also include mozzle, the mozzle is through heat exchange Room, and the upper end of mozzle with upper chamber through connect after upper perforated plate, the lower end of mozzle pass through after lower perforated plate with crystallisation chamber Connection, also including swash plate, the swash plate is obliquely arranged on crystallization interior, and the swash plate is divided into crystallisation chamber positioned at upper The circulation chamber and underlying crystallization chamber of side；The lower end of the heat exchanger tube through after lower perforated plate with circulation chamber, The lower end of the mozzle connects through after swash plate with crystallization chamber；It is provided with the lowest point of circulation chamber and connects with circulation chamber Logical circulation fluid entrance, the circulation fluid outlet connected with crystallization chamber is provided with the highest point of crystallization chamber；The circulation fluid Entrance is connected with circulation fluid outlet by circulation line, and is provided with circulation line for liquid in driving cycle pipeline The circulating pump of flowing.

It is further：Also include demarcation strip, the demarcation strip is arranged in epicoele room, and the demarcation strip is by epicoele Room is divided into top chamber above and underlying split cavity, the upper end of the heat exchanger tube through after upper perforated plate with Split cavity is connected, and the upper end of the mozzle connects through after demarcation strip with top chamber；In leading in split cavity The oblique through hole of tube wall, and the trend of the oblique through hole are provided through on the tube wall of flow tube relative to the tube wall of corresponding position Wall thickness direction inclines.

It is further：The oblique through hole be provided with it is multiple, and multiple oblique through holes along mozzle it is circumferential Even distribution, the trend of the plurality of oblique through hole is consistent relative to the incline direction in the pipe wall thickness direction of corresponding position.

It is further：It is corresponding with each oblique through hole to be provided with an extension tube on the outside of the tube wall of mozzle, it is described Extension tube is connected with corresponding oblique through hole, and the trend of extension tube is consistent with the trend of corresponding oblique through hole.

It is further：The trend of the oblique through hole from the outside wall surface of mozzle between internal face to incline obliquely Arrange, and its angle of inclination is θ, there is 0 ＜ θ≤30 °；Wherein preferred θ=10 °.

It is further：The demarcation strip is in the recessed funnel-form in middle part, and the upper end of the mozzle is from demarcation strip The lowest point at center passes.

It is further：The lower end of the mozzle extends downwardly certain distance L after through swash plate；And in mozzle Lower end outlet underface certain distance P at be provided with baffle plate；Wherein L ＞ 0, P ＞ 0.

It is further：First outlet is provided with the top of top chamber, the bottom of crystallisation chamber is provided with second and is gone out Mouthful, the side of Heat Room is provided with heat exchange media input, the side relative with heat exchange media input is provided with Heat Room Heat exchange media outlet；Also include charging aperture, the charging aperture is connected with crystallisation chamber.

It is further：The crystallizer is used for condensation-crystallization operation, and the charging aperture is connected to by feed pipe leads The medium position of flow tube, and connect with mozzle.

It is further：Also include the rotating shaft being arranged in crystallizer and the drive mechanism being arranged on above upper chamber, institute State drive mechanism to be connected with rotating shaft transmission；Also include that be arranged in rotating shaft can be with the paddle of axis of rotation, the paddle position Bottom in crystallization chamber；When baffle plate is provided with, the baffle plate is arranged in rotating shaft.

The beneficial effects of the utility model are：This utility model passes through to arrange swash plate and corresponding circulating pump, by following Ring pump provides compulsory circulation power for whole crystallizer, therefore can ensure that the liquid circulation rate in crystallizer is very fast and follows Circulation is larger, and then ensures the crystalline rate of whole crystallizer；Simultaneously as the structure such as Heat Room, mozzle is directly arranged Between upper chamber and crystallisation chamber, therefore can to greatest extent simplify device structure, reduce the flow resistance of equipment room, shorten liquid The path of body circulation, and crystallizer described in the utility model, can be effectively reduced the pipeline blockage caused due to shutdown The situation that the equipment of even resulting in cannot start occurs, and because circulation line is relative to traditional setting using outer circulation completely Effectively shortening is obtained for putting, therefore can also greatly reduce energy consumption needed for equipment operation, reach the effect of energy-saving and emission-reduction.

In addition, can also make solution that rotation is formed in mozzle by arranging demarcation strip and corresponding oblique through-hole structure Stream mode, and passing through eddy flow can be efficiently separated crystalline particle entrained in the part solution so that major part knot Brilliant granule is settled downwards along mozzle, while so that the stillness of night after separating travel up in top chamber, therefore can be effectively Realize the separation to crystalline particle.In addition, by arranging second outlet in the bottom of crystallisation chamber, can be more convenient for crystalline portion Material is discharged.In addition, also by arranging baffle plate the liquid discharged from mozzle lower end can be avoided from being directly impinging positioned at crystallisation chamber The crystallizing field of bottom, can improve the crystallization effect of crystallized stock.

Description of the drawings

Fig. 1 is a kind of structural representation of crystallizer specific example described in the utility model；

Fig. 2 is the enlarged diagram of regional area A in Fig. 1；

Fig. 3 is three dimensional structure diagram when mozzle is connected with demarcation strip；

Fig. 4 is the front view of Fig. 3；

Fig. 5 is the sectional view of section B-B in Fig. 4, is provided with extending tubular construction；

Fig. 6 is the sectional view of section B-B in Fig. 4, wherein being not provided with extending tubular construction；

Fig. 7 is the sectional view in C-C sections in Fig. 5；

It is labeled as in figure：Upper chamber 1, Heat Room 2, crystallisation chamber 3, upper perforated plate 4, lower perforated plate 5, heat exchanger tube 6, water conservancy diversion Pipe 7, demarcation strip 8, top chamber 9, split cavity 10, oblique through hole 11, extension tube 12, baffle plate 13, first outlet 14th, second outlet 15, heat exchange media input 16, heat exchange media outlet 17, charging aperture 18, feed pipe 19, circulating pump 20th, rotating shaft 21, drive mechanism 22, paddle 23, the outlet 25, circulation fluid entrance 26 of circulation line 24, circulation fluid, crystallization Chamber 27, circulation chamber 28, swash plate 29.

Specific embodiment

This utility model is further illustrated with reference to the accompanying drawings and detailed description.

As shown in fig. 1, a kind of crystallizer described in the utility model, including the upper chamber 1 being sequentially connected from top to bottom, Heat Room 2 and crystallisation chamber 3；Upper perforated plate 4 is provided between upper chamber 1 and Heat Room 2, is set between crystallisation chamber 3 and Heat Room 2 It is equipped with lower perforated plate 5；Be provided with heat exchanger tube 6 in the Heat Room 2, and the lower end of heat exchanger tube 6 through after lower perforated plate 5 with crystallisation chamber 3 Connection, the upper end of heat exchanger tube 6 connects through after upper perforated plate 4 with upper chamber 1；Also include mozzle 7, the mozzle 7 is passed through and changed Hot cell 2, and the upper end of mozzle 7, through connecting with upper chamber 1 after upper perforated plate 4, the lower end of mozzle 7 is through after lower perforated plate 5 Connect with crystallisation chamber 3, also including swash plate 29, the swash plate 29 is obliquely arranged in crystallisation chamber 3, and the swash plate 29 will be tied Brilliant room 3 is divided into circulation chamber 28 above and underlying crystallization chamber 27；The lower end of the heat exchanger tube 6 passes through down Connect with circulation chamber 28 after tube sheet 5, the lower end of the mozzle 7 connects through after swash plate 29 with crystallization chamber 27；In circulation The lowest point of chamber 28 is provided with the circulation fluid entrance 26 connected with circulation chamber 28, is provided with the highest point of crystallization chamber 27 The circulation fluid outlet 25 connected with crystallization chamber 27；The circulation fluid entrance 26 and circulation fluid outlet 25 are connected by circulation line 24 It is logical, and the circulating pump 20 for liquid flowing in driving cycle pipeline 24 is provided with circulation line 24.

More specifically, carry out effectively to realize the crystalline particle to being mingled with the solution Jing after heat exchanger tube 6 exchanges heat Separate, demarcation strip 8 is also provided with the basis of the crystallizer of said structure, the demarcation strip 8 is arranged in upper chamber 1, and It is described to change and upper chamber 1 is divided into top chamber 9 above and underlying split cavity 10 by the demarcation strip 8 The upper end of heat pipe 6 through connecting with split cavity 10 after upper perforated plate 4, the upper end of the mozzle 7 through after demarcation strip 8 with top Chamber 9 is connected；The oblique through hole 11 of tube wall is provided through on the tube wall of the mozzle 7 in split cavity 10, and The trend of the oblique through hole 11 is inclined relative to the pipe wall thickness direction of corresponding position.

Wherein, the liquid circulation process inside crystallizer described in the utility model is as follows：Circulating pump 20 will be positioned at crystallization cavity Solution in room 27 is pumped in circulation chamber 28 by the way that circulation line 24 is compulsory, then promotes solution to pass upward through heat exchanger tube 6, will be heated or cooled through the solution of heat exchanger tube 6；Solvent portions after being exchanged heat again by mozzle 7 back downward into In crystallization chamber 27, circulation is realized with this；Certainly, the solution after being exchanged heat has partly can be by being arranged on the top of top chamber 9 First outlet 14 discharge, and be not re-circulated.Therefore, this utility model is realized to crystallizer inside by circulating pump 20 The forced circulation of solution, so can easily improve the flow velocity and flow of crystallizer interior circulation liquid, and then to carry The crystalline rate of high whole crystallizer.Certainly, circulating pump 20 can adopt common pump, as long as it can provide satisfaction actual need The flow velocity asked and flow.

In addition, the effect of swash plate 29 is that crystallisation chamber 3 is divided into into two crystallization chambers independent of each other 27 and circulation chamber 28；And institute using the swash plate 29 that is obliquely installed, its effect mainly has two：First allows for the possibility in circulation chamber 28 Certain crystalline particle can be deposited, and is adopted after the structure of swash plate 29, the crystallization of deposition can be collected in the minimum of swash plate 29 as far as possible Place, so by the circulation fluid entrance 26 for arranging in this place, can break up the crystallization of deposition, and then avoid the partially crystallizable oblique Deposit in a large number on plate 29；Second be by arranging swash plate 29, can in the crystallization chamber 27 positioned at the highest point of swash plate 29 formed compared with High region, can so make the crystallization that the solution for being located at the highest point is mingled with through the sedimentation of enough time, and then cause The crystallization content being mingled with solution at this is reduced as far as possible；So by arranging circulation fluid outlet 25 in this place, can as far as possible reduce logical The crystalline particle of the solution entrained with crossed in circulation line 24.Certainly, more specifically swash plate 29 can adopt the plane being obliquely installed Plate, may also be employed the curved slab with certain radian or the structure of other achievable the effect above may also be employed.

In addition, it is necessary to illustrate, the circulation line 24 in accompanying drawing is plotted as the form bypassed from the bottom of crystallisation chamber 3, It is intended merely to the schematic diagram of the annexation for avoiding the intersection for producing figure in the accompanying drawings and drawing；Connected in actual installation Cheng Zhong, circulation line 24 can lead to circulation fluid entrance 26 and circulation fluid outlet 25 around direct later from the outside of the circumference of crystallisation chamber 3 Cross, the length of the shortening circulation line 24 to try one's best, and then the flow resistance of pipeline can be reduced, reduce the operation work(of circulating pump Consumption, while also can as far as possible avoid the stopping state caused due to crystallization deposition in pipeline when shutting down from occurring.

Above-mentioned crystallizer described in the utility model, is capable of achieving continuous crystallisation operation, it is corresponding need continuously to Stock solution is filled in crystallizer, while also can continuously or discontinuously discharge crystallization or crystallize dope and continuously discharge clear Night discharges steam.And crystallizer described in the utility model can be not only used for vaporation-type crystallization operation, can be used to condense again Formula crystallizes operation；Wherein, according to the difference of crystallizer operating type, the effect of upper chamber 1 also can change therewith, when this practicality it is new When crystallizer described in type is used for vaporation-type crystallization operation, upper chamber 1 will be used as evaporation chamber, the solution inside whole crystallizer Liquid level will be in upper chamber 1, and solution should be full by the filling such as Heat Room 2, crystallisation chamber 3 and separation chamber 10；It is now molten From in crystallisation chamber 2 by being heated after heat exchanger tube 6, the solution after heating is most entered partly at last in upper chamber 1 liquid In top chamber 9, by evaporation and concentration in top chamber 9, the steam after evaporation is by from first be arranged at the top of top chamber 9 Outlet 14 is discharged and can be collected.And when described crystallizer is used for condensing crystallization operation, upper chamber 1 is using as clear liquid Clarifying chamber, will be completely filled with inside whole crystallizer by solution；Now solution in the crystallisation chamber 2 by will be cold after heat exchanger tube 6 But lower the temperature, the solution after cooling will have in the top chamber 9 for entering partly in upper chamber 1, solution is located in top chamber 9 Interior crystalline particle will be settled gradually, and be located at the clear liquid of top by from the row of first outlet 14 for being arranged on the top of upper chamber 1 Go out and can be collected.

Certainly, crystallizer without loss of generality, in this utility model is needed in upper chamber in order that it can normally run 1 top is provided with corresponding first outlet 14, and the bottom of crystallization chamber 27 is provided with second outlet 15, in Heat Room 2 Side is provided with heat exchange media input 16, and the side relative with heat exchange media input 16 is provided with heat exchange medium on Heat Room 2 Outlet 17；Also need to be provided with charging aperture 18；So, stock solution can continuously be added into crystallizer by charging aperture 18； By first outlet 14, corresponding clear liquid or steam can be discharged；By second outlet 15, crystalline solid can be discharged or crystallized dense Liquid；By exchange heat media input 16 and heat exchange media outlet 17 can be passed through heat exchange medium into Heat Room 2, with from heat exchanger tube 6 The solution for inside flowing through is exchanged heat.

In addition, according to the difference of crystallizer operating type, when crystallizer is used for condensation-crystallization operation, preferably will be described Charging aperture 18 is connected by being connected to the medium position of mozzle 7 after feed pipe 19 with mozzle 7.Referring for example to accompanying drawing 1 Shown in, charging aperture 18 is connected by feed pipe 19 with the mozzle 7 after lower perforated plate 5 is passed through.So arrange benefit be： So that the stock solution being added in crystallizer by first with it is cooled after the part flow back into from mozzle 7 in crystallization chamber 27 it is molten Liquid mixes, and stock solution can so drained into again in crystallization chamber 27 after being cooled rapidly to separate out certain crystallization in time carries out one Fixed is settlement separate.And when crystallizer is used for evaporative crystallization operation, directly charging aperture 18 can be arranged on into the top of crystallisation chamber 3 On the wall of side, stock solution is added directly in crystallisation chamber 3, such as directly charging aperture 18 can be arranged on into circulation chamber 28 top Side wall on, and make charging aperture 18 with circulation chamber 28 connect, such stock solution will be added directly into circulation chamber 28 in.

In addition, the effect that oblique through hole 11 is arranged in this utility model is so that solution by oblique through hole 11 from mozzle Split cavity 10 outside 7 is flowed in mozzle 7, while forming eddy flow in mozzle 7.Referring to the drawings in 5 or accompanying drawing 6 Shown, the curve with arrow substantially represents the flow line of fluid in figure；Due to the trend of oblique through hole 11 being set to relatively Incline in the pipe wall thickness direction of corresponding position, i.e., trend and the pipe wall thickness direction shape δ at a certain angle of oblique through hole 11, ginseng Shown in accompanying drawing 5, with this so that the trend along oblique through hole 11 is flowed into the liquid of mozzle 7 and will form eddy flow.Certainly, Theoretically for realizing eddy flow effect in the mozzle 7, the value of δ should be between：0 ＜ δ≤90 ° scope, and when the value of δ During the closer to 90 °, then the eddy flow effect for producing under the same terms is better.As being provided with four oblique through holes 11 in Fig. 5, four tiltedly To through hole 11 be located at same cross section on, and four oblique through holes 11 along mozzle 7 circumference it is equal angular be uniformly distributed, The eddy flow for rotating counterclockwise now will be formed in mozzle 7.It is consistent by arranging five incline directions in figure 6 in the same manner Oblique through hole 11, also can form the eddy flow for rotating counterclockwise in mozzle 7.And by forming eddy flow in mozzle 7, then may be used Get rid of what crystalline particle contained in solution was centrifuged near the inwall side of mozzle 7, be then gradually deposited to the knot of bottom In brilliant chamber 27；And the clear liquid after crystallization is isolated, part is flowed up in top chamber 9 along mozzle 7, another portion Divide then to pass back into downwards and circulate again in crystallization chamber 27.Why having the clear liquid of part will flow up along mozzle 7, be Because whole crystallizer continuously feeds stock solution by charging aperture 18 to the inside of it, and also the addition of stock solution should be controlled Amount is substantially equal to the inventory sum discharged from first outlet 14 and second outlet 15, so that molten inside whole crystallizer Liquid measure keeps stable.

Furthermore, it is contemplated that the wall thickness of mozzle 7 may be relatively thin, therefore only can by eddy flow effect produced by oblique through hole 11 Can not be good, for this purpose, referring to the drawings shown in 5, can be further on the outside of the tube wall of mozzle 7 corresponding with each oblique through hole 11 Be provided with an extension tube 12, the extension tube 12 is connected with corresponding oblique through hole 11, and the trend of extension tube 12 with it is right The trend of the oblique through hole 11 answered is consistent.By arranging extension tube 12, the effect for producing eddy flow can be strengthened, and then improve crystallization Separating effect.The shape of extension tube 12 should be substantially consistent with oblique through hole 11, such as shown in accompanying drawing is both to arrange oblique The cross section of through hole 11 is the gap structure of rectangle, and the cross section of corresponding extension tube 12 is also configured as the rectangle of formed objects Pipe.Certainly, without loss of generality, also extension tube 12 can be arranged on the inside of the tube wall of mozzle 7 or by the entirety of extension tube 12 and be worn Cross the tube wall of mozzle 7.In addition, extension tube 12 also can move towards mode along it is provided with certain crooked radian, as long as ensureing it The final eddy flow effect produced in mozzle 7 can be improved.

In addition, in order to realize that crystalline particle is centrifuged into the effect of " throwing is got rid of " to the lower end of mozzle 7 during eddy flow, so that crystallization Granule can be deposited to preferably downwards in crystallization chamber 27, referring to the drawings shown in 7, further can be by the oblique through hole 11 Move towards from the outside wall surface of mozzle 7 between internal face to be obliquely installed obliquely, and when its angle of inclination is θ, typically 0 ＜ θ≤30 ° are provided with, for example, tilt angle theta=10 ° can be set.In addition, in these cases, when being provided with extension tube When 12, also the trend of extension tube 12 can be set to move towards consistent inclination conditions with oblique through hole 11.

In addition, in this utility model, the effect that demarcation strip 8 is set be by upper chamber 1 be divided into two it is independent of each other Split cavity 10 and top chamber 9；And consider to be likely to produce a certain amount of crystalline particle in top chamber 9, especially When for evaporative crystallization operation, will also more crystalline particle be separated out in top chamber 9.Therefore, in order that the part knot Brilliant granule can smoothly by being settled down in the crystallization chamber 27 of bottom after mozzle 7, shown in 3 and accompanying drawing 4, this Utility model can further be set to the demarcation strip 8 in the recessed funnel-form in middle part, and the upper end of the mozzle 7 from The lowest point at the center of demarcation strip 8 passes；Certainly the upper end end face of mozzle 7 should try one's best minimum with funnelform demarcation strip 8 Place seamlessly transits, to avoid crystalline particle from piling up in this place.

In addition, referring to the drawings shown in 2, the lower end that can further arrange mozzle 7 extends downwardly after through swash plate 29 Certain distance L, wherein L ＞ 0, the benefit for so arranging is the part that can avoid from mozzle 7 flowing in the crystallization chamber 27 of lower section Solution exports 25 and is circulated upwardly through circulation fluid at once again, so that the solution from the outflow of mozzle 7 is first in crystallization chamber 25 are exported after the 27 interior infall processes for carrying out certain hour by circulation fluid again to be circulated, so can as far as possible reduce crystalline particle Situation about being circulated again occurs.In addition, also gear can be provided with the underface certain distance P that the lower end of mozzle 7 exports Plate 13；Wherein P ＞ 0, the effect for arranging baffle plate 13 is that the solution flowed out from mozzle 7 can be avoided to be pointed to the bottom of crystallization chamber 27 The crystalline particle or crystallization dope of deposition is impacted, and baffle plate 3 can install pole installed in crystallization chamber 27 by corresponding Internal face on or by installing pole to be mounted directly to the bottom of mozzle 7.

In addition, corresponding rotating shaft 21 can be also arranged in crystallizer and corresponding driving machine is arranged in the top of upper chamber 1 Structure 22, the drive mechanism 22 is connected with rotating shaft 21；Also include that be arranged in rotating shaft 21 can be with the paddle of axis of rotation 23, the paddle 23 is located at the bottom in crystallization chamber 27；And, when baffle plate 13 is provided with, the baffle plate 13 can be direct In rotating shaft 21.As for drive mechanism 22, common motor can be typically adopted, in addition can also be in drive mechanism 22 Outfan is provided with corresponding reducing gear, and by reducing gear subtracting between the outfan of drive mechanism 22 and rotating shaft 21 is realized Speed is connected.The paddle 23 of the stirring that the above-mentioned bottom in crystallization chamber 27 is arranged, as shown in Figure 1, will can stir Mix the top that leaf 23 is arranged on second outlet 15；The effect of paddle 23 is to play the crystalline particle to deposition in crystallization chamber 27 Or crystallization dope plays slow stirring action, to improve the uniformity of crystalline particle.

Claims

1. a kind of crystallizer, including the upper chamber (1), Heat Room (2) and crystallisation chamber (3) that are sequentially connected from top to bottom；In epicoele Upper perforated plate (4) is provided between room (1) and Heat Room (2), between crystallisation chamber (3) and Heat Room (2) lower perforated plate is provided with (5)；Heat exchanger tube (6) is provided with Heat Room (2), and the lower end of heat exchanger tube (6) passes through lower perforated plate (5) afterwards and crystallisation chamber (3) connect, the upper end of heat exchanger tube (6) connects afterwards through upper perforated plate (4) with upper chamber (1)；Also include mozzle (7), it is described to lead Flow tube (7) is connected afterwards through upper perforated plate (4) through Heat Room (2), and the upper end of mozzle (7) with upper chamber (1), mozzle (7) lower end connects afterwards through lower perforated plate (5) with crystallisation chamber (3), it is characterised in that：Also include swash plate (29), the swash plate (29) obliquely it is arranged in crystallisation chamber (3), and crystallisation chamber (3) is divided into torus above by the swash plate (29) Room (28) and underlying crystallization chamber (27)；The lower end of the heat exchanger tube (6) through lower perforated plate (5) afterwards with circulation chamber (28) connect, the lower end of the mozzle (7) connects afterwards through swash plate (29) with crystallization chamber (27)；In circulation chamber (28) Lowest point is provided with and circulates chamber (28) the circulation fluid entrance (26) that connects, the highest point of crystallization chamber (27) be provided with Circulation fluid outlet (25) of crystallization chamber (27) connection；The circulation fluid entrance (26) and circulation fluid outlet (25) are by circulation pipe Road (24) connects, and the circulating pump for the interior liquid flowing of driving cycle pipeline (24) is provided with circulation line (24) (20)。

2. crystallizer as claimed in claim 1, it is characterised in that：Also include demarcation strip (8), the demarcation strip (8) is arranged on In upper chamber (1), and upper chamber (1) is divided into top chamber (9) above and positioned at lower section by the demarcation strip (8) Split cavity (10), the upper end of the heat exchanger tube (6) connects afterwards through upper perforated plate (4) with split cavity (10), the water conservancy diversion The upper end of pipe (7) connects afterwards through demarcation strip (8) with top chamber (9)；In the mozzle (7) in split cavity (10) The oblique through hole (11) of tube wall, and the trend of the oblique through hole (11) are provided through on tube wall relative to the pipe of corresponding position Wall wall thickness direction inclines.

3. crystallizer as claimed in claim 2, it is characterised in that：The oblique through hole (11) is provided with multiple and multiple Oblique through hole (11) is uniformly distributed along the circumference of mozzle (7), and the trend of the plurality of oblique through hole (11) is relative to correspondence The incline direction in the pipe wall thickness direction at place is consistent.

4. crystallizer as claimed in claim 2, it is characterised in that：In the tube wall outside of mozzle (7), with each oblique through hole (11) corresponding to be provided with an extension tube (12), the extension tube (12) connects with corresponding oblique through hole (11), and extends The trend of pipe (12) is consistent with the trend of corresponding oblique through hole (11).

5. crystallizer as claimed in claim 2, it is characterised in that：The trend of the oblique through hole (11) is from mozzle (7) Outside wall surface to be obliquely installed obliquely, and its angle of inclination is θ, there is 0 ＜ θ≤30 ° between internal face, wherein it is preferred that θ= 10°。

6. crystallizer as claimed in claim 2, it is characterised in that：The demarcation strip (8) in the recessed funnel-form in middle part, and The upper end of the mozzle (7) passes from the lowest point at demarcation strip (8) center.

7. crystallizer as claimed in claim 1, it is characterised in that：The lower end of the mozzle (7) is after through swash plate (29) Extend downwardly certain distance L；And it is provided with baffle plate (13) at the underface certain distance P that the lower end of mozzle (7) exports； Wherein L ＞ 0, P ＞ 0.

8. crystallizer as claimed in claim 2, it is characterised in that：First outlet is provided with the top of top chamber (9) (14), the bottom of crystallisation chamber (3) is provided with second outlet (15), the side of Heat Room (2) is provided with heat exchange media input (16), side relative with heat exchange media input (16) on Heat Room (2) is provided with heat exchange media outlet (17)；Also include into Material mouth (18), the charging aperture (18) connects with crystallisation chamber (3).

9. crystallizer as claimed in claim 8, it is characterised in that：The crystallizer is used for condensation-crystallization operation, the charging Mouth (18) is connected to the medium position of mozzle (7) by feed pipe (19), and connects with mozzle (7).

10. crystallizer as in one of claimed in any of claims 1 to 9, it is characterised in that：Also include being arranged in crystallizer Rotating shaft (21) and the drive mechanism (22) being arranged on above upper chamber (1), the drive mechanism (22) connects with rotating shaft (21) transmission Connect；Also include that be arranged in rotating shaft (21) can be with the paddle (23) of axis of rotation, the paddle (23) is positioned at crystallization chamber (27) bottom in；When baffle plate (13) are provided with, the baffle plate (13) is in rotating shaft (21).