CN110180201A - A kind of vacuum flashing concentration crystallisation by cooling integral process - Google Patents
A kind of vacuum flashing concentration crystallisation by cooling integral process Download PDFInfo
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- CN110180201A CN110180201A CN201910538991.1A CN201910538991A CN110180201A CN 110180201 A CN110180201 A CN 110180201A CN 201910538991 A CN201910538991 A CN 201910538991A CN 110180201 A CN110180201 A CN 110180201A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/06—Flash distillation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0004—Crystallisation cooling by heat exchange
- B01D9/0013—Crystallisation cooling by heat exchange by indirect heat exchange
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Abstract
The invention discloses a kind of vacuum flashings, and crystallisation by cooling integral process is concentrated, and specific embodiment is as follows: material enters vacuum flashing condensing crystallizing tank, is evaporated concentration using flash distillation in high temperature section；Then the material that tank bottom is fallen to after being concentrated by evaporation with circulating pump from pot bottom suction, is then pumped into upper end forced circulation for material, and enhanced water evaporation makes material stop concentration after being concentrated into a certain concentration；Entered in tank in the disk that exchanges heat using refrigerant and cooled down, reaches crystallization temperature needed for material；Material after crystallisation by cooling is entered back into subsequent processing and is filtered separation, obtains qualified liquid and crystallized product.Upgrading unit operational sequence and crystalline element operating procedure process are combined together by the present invention, and two unit operating procedures are completed in an equipment, realize process it is simplified, substantially energy conservation, reduce artificial purpose.
Description
Technical field
The invention belongs to pharmacy, chemical field, are related to a kind of vacuum flashing concentration crystallisation by cooling integral process.
Background technique
In the industrial production, concentration and crystallization are two different unit operations.There are two types of forms for upgrading unit operation: one
Kind is to evaporate moisture content with steam (or other thermal mediums), achievees the purpose that concentration；Another kind is with MVR (function of mechanical steam recompression
Technique), moisture content is evaporated in vacuo by suction, achievees the purpose that concentration.Crystalline element operation is also there are two types of form: one is with true
Empty Flash Type is cooled by heat that the evaporation of moisture content is taken away, so that material is dropped to temperature required for crystallization, to reach
To the purpose of crystallization；Another kind is so that material is reached crystallization temperature by heat exchange cooling with cryogenic freezing medium, reach crystallization
Purpose.
MVR in upgrading unit operation compares traditional steam (or other heat sources) heat exchange evaporating and concentrating process energy consumption greatly
It saves, MVR has the tendency that gradually replacing conventional vapor heat exchange evaporating and concentrating process.
In crystalline element operation, vacuum flashing crystallization processes cool down efficiency under material high temperature (40 DEG C -100 DEG C) state
It is high；But under low-temperature condition (40 DEG C), since evaporation in vacuo degree requires very high, cooling effect is poor, low efficiency, energy consumption are high (generally
High vacuum is reached using steam jet pump).
Process for freezing and crystallizing is cooled down using cold medium heat-exchanging process.For that should crystallize, certain density life again
Production. art, now crystalline element operation and evaporation and concentration unit operating procedure are two independent operational sequences.
Summary of the invention
The purpose of the present invention is to provide a kind of vacuum flashings, and crystallisation by cooling integral process is concentrated, and upgrading unit is operated
Process and crystalline element operating procedure process are combined together, and two unit operating procedures are completed in an equipment, are realized
Process is simplified, substantially energy conservation, reduce artificial purpose.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of vacuum flashing concentration crystallisation by cooling integral process, specific embodiment are as follows:
The first step, material enter vacuum flashing condensing crystallizing tank, are evaporated concentration, while object using flash distillation in high temperature section
The steam generated in material evaporating concentration process is passed through in crystallizing tank after being compressed by pipeline flash compressor and recycles；
Second step, the material after concentration fall to tank bottom, fall after being then concentrated by evaporation with circulating pump from pot bottom suction
To the material of tank bottom, material is then pumped into upper end forced circulation, enhanced water evaporation stops material after being concentrated into a certain concentration
Only it is concentrated；
Then third step is entered in tank using refrigerant and is cooled down in heat exchange disk, reaches crystallization temperature needed for material
Degree, while remaining steam cools down after flash compressor compresses when by cooling medium to material evaporation, so that in tank
Temperature quickly sufficiently reduces；
Material after crystallisation by cooling is entered back into subsequent processing and is filtered separation by the 4th step after material is completely cooling,
The cooling water in tank is discharged by steam trap simultaneously, obtains qualified liquid and crystallized product.
Further, the detailed process being concentrated by evaporation in the first step are as follows: enter pressurization hot steam water by water inlet manifold
In several water inlet pipes, the inside of jacket type heat exchange plate is then entered by several water inlet pipes, while material is pumped into vacuum with pump
In flash concentration crystallizing tank, the steam of jacket type heat exchange intralamellar part adds the intracorporal material of cylinder by jacket type heat exchange plate
Heat, the hot water after heating are discharged into outfall sewer by outlet pipe, enter the discharge of carbonated drink delivery pipe spool by outfall sewer, together
When by material from feed inlet be added outer barrel inside, material is heated, wherein moisture is evaporated in material, after evaporation
Vapor is discharged by steam (vapor) outlet, and material concentration steps up at this time, and material is gradually concentrated.
Further, being concentrated by evaporation in the first step further includes following process: the steam formed in evaporating concentration process passes through
Steam (vapor) outlet enters in Low Temperature Steam pipeline, then carries out pressurization temperature raising by being sucked by vacuum pressure charging system, and by the steaming of temperature raising
Vapour is passed through water inlet manifold by high-temperature steam pipeline, and the high-temperature steam then passed in water inlet manifold enters collet by water inlet pipe
The steam of the inside of formula heat exchanger plates, jacket type heat exchange intralamellar part heats the intracorporal material of cylinder by jacket type heat exchange plate,
Concentration is evaporated to material, realizes the circulation and stress of heat.
Further, the detailed process that material crystallizes in third step are as follows: cold water is entered into several water inlets by water inlet manifold
Guan Zhong, then enters the inside of jacket type heat exchange plate by several water inlet pipes, and jacket type heat exchange plate is passed through by internal cold water
Jacket type heat exchange plate carries out crystallisation by cooling to the material after concentration, and material after cooling forms crystal and condenses in jacket type heat exchange plate
Surface and bottom surface；Rotation axis rotation is controlled by decelerating motor driving device, rotation axis drives upper blade and lower coating blade rotation
The crystal of jacket type heat exchange plate surface and bottom surface is scraped, while crystal is pushed into notch in upper blade and lower coating blade rotation process
Place, crystal slide to the discharge outlet of outer barrel bottom from notch, are then discharged from discharge outlet.
Further, material crystallization further includes following process in third step: in jacket type heat exchange plate during crystallisation by cooling
After outfall sewer is discharged, the recirculated water of discharge is passed through in coolant system water after middle circulation through supercooled water reflux pipeline, warp
Formation cooling water is passed through in water inlet manifold after crossing the cooling of coolant system, and cooling water enters jacket type heat exchange plate by water inlet manifold
Inside crystallisation by cooling continued to material, realize it is cooling after water recycle.
Further, compressed air purge system constantly blasts air into outer barrel and is purged, remove pipeline and
Remaining cold water in jacket type heat exchange plate.
Further, vacuum flashing condensing crystallizing tank includes outer barrel, and deceleration electricity is equipped at the top center of outer barrel
Machine actuating device, the power output end of decelerating motor driving device is fixedly connected with rotation axis, while being provided at the top of outer barrel
Feed inlet, detection interface and steam (vapor) outlet, material pass through throat-fed；The bottom center of outer barrel is provided with discharge port；
The inside of outer barrel is sequentially installed with several jacket type heat exchange plates, the side wall appearance of jacket type heat exchange plate from top to bottom
Face is fixed on the side wall inner surfaces of outer barrel by heat exchanger plates support, and jacket type heat exchange plate side wall is provided with water inlet pipe and goes out
Water pipe, while one end of several water inlet pipes is connected with water inlet manifold, one end of several outlet pipes is connected with outfall sewer；
The surface middle part of jacket type heat exchange plate is provided with through hole, and through hole is not connected to jacket type heat exchange intralamellar part, rotation
Axis sequentially passes through the through hole of several jacket type heat exchange plate surfaces, and several pairs of scraper groups, while jacket type are equipped in rotation axis
The surface side of heat exchanger plates is provided with connection through hole and extends to the notch of avris, and the notch of several jacket type heat exchange plates is opposite
It answers；
Scraper group includes the upper blade and lower coating blade of installation on the rotating shaft, the upper surface of upper blade and jacket type heat exchange plate
It compresses, the bottom surface of lower coating blade and jacket type heat exchange plate compresses.
Further, outer barrel includes being sequentially connected fixed upper cover, middle cylinder body and lower head, upper cover from top to bottom
Using ellipsoidal head, butterfly end socket or plane end socket, lower head is using conical end socket, square cone end socket, ellipsoidal head
Or butterfly end socket, flanged joint is used between upper cover and middle cylinder body；During upper cover diameter is more than or less than according to actual disposition
Cylinder size is connected between upper cover and middle cylinder body using tapering transition at this time；Feed inlet, detection interface and the equal position of steam (vapor) outlet
At the top of upper cover, while discharge port is located at the bottom of lower head.
Further, jacket type heat exchange plate horizontal distribution, and several jacket type heat exchange plates are equally distributed on outer barrel
Inside, jacket type heat exchange plate are plate disk ring type or taper disk ring type, and every piece of jacket type heat exchange plate surrounding is closed.
Further, jacket type heat exchange intralamellar part is welded with several stiffener plates, and several limbers are provided in stiffener plate.
Beneficial effects of the present invention:
1, upgrading unit operational sequence and crystalline element operating procedure process are combined together by the present invention, in an equipment
Two unit operating procedures of middle completion, realize process it is simplified, substantially energy conservation, reduce artificial purpose.
2, the present invention is flashed (MVR) using the high temperature heat for having just enter into material and is concentrated, and the material after concentration is due to dense
Degree increases, and the final crystallization temperature of material improves, and thus greatly reduces ice maker and provides the energy consumption of refrigerant.
3, the present invention can carry out the vapor generated in evaporating concentration process by setting vacuum suction pressure charging system
Pressurization temperature raising, and the vapor after temperature raising is passed through in jacket type heat exchange plate, realize the heating to jacket type heat exchange plate, Jin Ershi
Now to the recycling and reusing of vapor, cost and the energy are saved.
4, the present invention can cool down the recirculated water being discharged after cooling by setting coolant system, and will be after cooling
Water be passed through in jacket type heat exchange plate, realize cooling to jacket type heat exchange plate, and then realize and recycle to cooling water, save
Cost-saving and the energy.
5, the present invention, can be to having left solid in each pipeline and jacket type heat exchange plate by setting purging rinse-system
Particle and harmful substance are purged or are rinsed, and then can prevent the deposition of pipeline internal solids substance and harmful substance, are made
At pipeline blockage.
Detailed description of the invention
In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the drawings.
Fig. 1 is that crystallisation by cooling integral process structure chart is concentrated in vacuum flashing in embodiment 1；
Fig. 2 is internal circulation heat-exchanging vacuum evaporation jar structure schematic diagram of the present invention；
Fig. 3 is the partial enlarged view of Fig. 2；
Fig. 4 is plate disk ring type heat exchanger plates section and stiffener plate structural schematic diagram；
Fig. 5 is taper disk ring type heat exchanger plates section and stiffener plate structural schematic diagram；
Fig. 6 is jacket type heat exchange plate structural schematic diagram；
Fig. 7 is the partial enlarged view of Fig. 2.
Specific embodiment
Embodiment 1:
A kind of vacuum flashing concentration crystallisation by cooling integral process, as shown in Figure 1, specific embodiment is as follows:
The first step, material enter vacuum flashing condensing crystallizing tank, are evaporated concentration, while object using flash distillation in high temperature section
The steam generated in material evaporating concentration process, which flashes to be passed through in crystallizing tank after (MVR) compressor is compressed by pipeline, recycles benefit
With；
Second step, the material after concentration fall to tank bottom, fall after being then concentrated by evaporation with circulating pump from pot bottom suction
To the material of tank bottom, material is then pumped into upper end forced circulation, enhanced water evaporation stops material after being concentrated into a certain concentration
Only it is concentrated；
Then third step is entered in tank using refrigerant and is cooled down in heat exchange disk, reaches crystallization temperature needed for material
Degree, while remaining steam cools down after flashing (MVR) compressor compresses when by cooling medium to material evaporation, so that tank
Interior temperature quickly sufficiently reduces；
Material after crystallisation by cooling is entered back into subsequent processing and is filtered separation by the 4th step after material is completely cooling,
The cooling water in tank is discharged by steam trap simultaneously, obtains qualified liquid and crystallized product.
Embodiment 2:
It is as follows by as illustrated in figs. 2-7, being specifically described for step specific implementation details each in embodiment 1:
The first step, material enter vacuum flashing condensing crystallizing tank, are evaporated concentration using flash distillation (MVR) in high temperature section,
Pressurization hot steam water is entered in several water inlet pipes 31 by water inlet manifold, is then changed by several water inlet pipes 31 into jacket type
The inside of hot plate 3, while material being pumped into vacuum flashing condensing crystallizing tank with pump, the steam inside jacket type heat exchange plate 3 is logical
It crosses jacket type heat exchange plate 3 to heat the material in cylinder 1, the hot water after heating is discharged into outfall sewer 5 by outlet pipe 32
In, carbonated drink delivery pipe spool 92 is entered by outfall sewer 5 and is discharged, while material being added inside outer barrel 1 from feed inlet 11,
Material is heated, wherein moisture is evaporated in material, and the vapor after evaporation is discharged by steam (vapor) outlet 13, at this time object
Material concentration steps up, and material is gradually concentrated；The steam formed in evaporating concentration process simultaneously is entered low by steam (vapor) outlet 13
In warm steam pipe line 71, pressurization temperature raising then is carried out by being sucked by vacuum pressure charging system 7, and the steam of temperature raising is steamed by high temperature
Steam pipe line 72 is passed through water inlet manifold 4, and the high-temperature steam then passed in water inlet manifold 4 enters jacket type heat exchange by water inlet pipe 31
The inside of plate 3, the steam inside jacket type heat exchange plate 3 heats the material in cylinder 1 by jacket type heat exchange plate 3, right
Material is evaporated concentration, realizes the circulation and stress of heat；
Second step falls to the material of tank bottom, then by material after being then concentrated by evaporation with circulating pump from pot bottom suction
It is pumped into upper end forced circulation, enhanced water evaporation makes material stop concentration after being concentrated into a certain concentration；And by evaporating concentration process
The steam water interface of middle generation is discharged or is recycled by carbonated drink discharge pipe line 92；
Third step is entered in tank in the disk that exchanges heat using refrigerant and is cooled down, reaches crystallization temperature needed for material；It will
Cold water is entered in several water inlet pipes 31 by water inlet manifold 4, then enters the interior of jacket type heat exchange plate 3 by several water inlet pipes 31
Portion, jacket type heat exchange plate 3 carries out crystallisation by cooling by the material after 3 pairs of jacket type heat exchange plate concentrations by internal cold water, cold
But the material after forms surface and bottom surface that crystal condenses in jacket type heat exchange plate 3；Turned by the control of decelerating motor driving device
Moving axis 21 rotates, and rotation axis 21 drives the crystalline substance of upper blade 61 and the rotation scraping of lower coating blade 62 jacket type heat exchange plate 3 surface and bottom surface
Body, while crystal being pushed at notch 34 in 62 rotation process of upper blade 61 and lower coating blade, crystal is slid from notch 34 to outer
At the discharge port 15 of 1 bottom of cylinder, then it is discharged from discharge port 15；It is followed in jacket type heat exchange plate 3 during crystallisation by cooling
Water after ring is after the discharge of outfall sewer 5, and the recirculated water of discharge is passed through in coolant system 9 through supercooled water reflux pipeline 91, warp
Formation cooling water is passed through in water inlet manifold 4 after crossing the cooling of coolant system 9, and cooling water is changed by water inlet manifold 4 into jacket type
The inside of hot plate 3 continues crystallisation by cooling to material, and water recycles after realization is cooling；
Material after crystallisation by cooling is entered back into subsequent processing and is filtered separation by the 4th step, obtain qualified liquid and
Crystallized product, while air is constantly blasted into outer barrel 1 by compressed air purge system 8 and is purged, remove pipeline
With cold water remaining in jacket type heat exchange plate 3, it is ready for the heating concentration of next stage.
Embodiment 3:
Vacuum flashing condensing crystallizing tank is equipped at the top center of outer barrel 1 and subtracts as shown in Fig. 2, including outer barrel 1
Speed motor driving device 2, the power output end of decelerating motor driving device 2 are fixedly connected with rotation axis 21, while outer barrel 1
Top is provided with feed inlet 11, detection interface 12 and steam (vapor) outlet 13, and material is fed by feed inlet 11；In the bottom of outer barrel 1
Discharge port 15 is provided at the heart, the bottom avris of outer barrel 1 is provided with backwash interface 19, while the top of outer barrel 1, middle part or bottom
Portion's side wall is provided with installation and detects into hole 14, and 1 bottom of outer barrel is supported by supporting leg, and number of legs is 3-6；Tank
Body support also may be provided at outer wall in the middle part of tank body, using ear formula supporting form, quantity also according to calculate design need to select from 3 to
6 are differed；
As shown in figure 3, outer barrel 1 includes being sequentially connected fixed upper cover 16, middle cylinder body 17 and lower head from top to bottom
18, upper cover 16 is using ellipsoidal head, butterfly end socket or plane end socket, and lower head 18 is using conical end socket, square cone envelope
Head, ellipsoidal head or butterfly end socket, using the connection of flange 161, (design is so that collet between upper cover 16 and middle cylinder body 17
Formula heat exchanger plates are put into cylinder), it can will be opened between upper cover 16 and middle cylinder body 17 when installing jacket type heat exchanger plates, then
It is installed；Upper cover diameter is more than or less than middle cylinder body size according to actual disposition, adopts between upper cover 16 and middle cylinder body 17
It is connected with tapering transition；Feed inlet 11, detection interface 12 and steam (vapor) outlet 13 are respectively positioned on 16 top of upper cover, and discharge port 15 is located at
The bottom of lower head 18；
Specific 1 size of outer barrel is needed to configure according to technological design, and length dimension is 1.5 meters to 12 meters, barrel diameter from
1.0 meters to 5 meters；
The inside of outer barrel 1 is sequentially installed with several jacket type heat exchange plates 3 from top to bottom, and jacket type heat exchange plate 3 is horizontal to be divided
Cloth, and several jacket type heat exchange plates 3 are equally distributed on the inside of outer barrel 1, and jacket type heat exchange plate 3 is plate disk ring type or cone
Shape disk ring type, every piece of 3 surrounding of jacket type heat exchange plate be it is closed, the wall outer surface of jacket type heat exchange plate 3 passes through heat exchanger plates
Support 36 is fixed on the side wall inner surfaces of outer barrel 1, while the side wall of jacket type heat exchange plate 3 is provided with first through hole and second
Integrally connected is fixed with water inlet pipe 31 and outlet pipe 32 respectively for through-hole, first through hole and the second through hole, while outer barrel 1
Side wall is provided with third through-hole corresponding with water inlet pipe 31 and outlet pipe 32 and fourth hole, while one end of several water inlet pipes 31
It is connected with water inlet manifold 4, one end of several outlet pipes 32 is connected with outfall sewer 5；3 interior welds of jacket type heat exchange plate have
Several stiffener plates 35 are provided with several limbers 351 in stiffener plate 35, and as shown in Figure 4 and Figure 5, stiffener plate 35 is bar shaped
Or domes are prevented for that can be buffered to the water (or steam) entered inside jacket type heat exchange plate 3 by stiffener plate 35
Sealing stream (or steam) is too fast excessive；Water (or steam) is entered in several water inlet pipes 31 by water inlet manifold 4, then by several
Water inlet pipe 31 enters the inside of jacket type heat exchange plate 3, and water (or steam) successively passes through stiffener plate 35 in jacket type heat exchange plate 3
On limbers 351, water (or steam) is discharged into outfall sewer 5 after carrying out heat exchange by outlet pipe 32, then total from water outlet
Pipe 5 is discharged；
As shown in fig. 6, the surface middle part of jacket type heat exchange plate 3 is provided with through hole 33, through hole 33 and jacket type heat exchange plate 3
Inside is not connected to, and rotation axis 21 sequentially passes through the through hole 33 on several 3 surfaces of jacket type heat exchange plate, if being equipped in rotation axis 21
It does to scraper group 6, while the surface side of jacket type heat exchange plate 3 is provided with connection through hole 33 and extends to the notch 34 of avris,
The notch 34 of several jacket type heat exchange plates 3 is corresponding；Wherein notch 34 is trough type, V-type or semi-circular, when testing staff repairs
Hole 14 is detected by the installation of 1 bottom of outer barrel to enter in outer barrel 1, then enters jacket type heat exchange plate 3 by notch 34
Centre carries out installation and repairing；
As shown in fig. 7, scraper group 6 includes the upper blade 61 and lower coating blade 62 that are mounted in rotation axis 21, upper blade 61 with
The upper surface of jacket type heat exchange plate 3 compresses, and the bottom surface of lower coating blade 62 and jacket type heat exchange plate 3 compresses；It is evaporated when to material
When concentration, the steam inside jacket type heat exchange plate 3 heats the material in cylinder 1 by jacket type heat exchange plate 3, material from
Feed inlet 11 enters inside outer barrel 1, after contacting with jacket type heat exchange plate 3, heats to material, wherein moisture content obtains in material
With evaporation, material concentration is stepped up, and material is gradually concentrated；When carrying out crystallisation by cooling to material, jacket type heat exchange plate 3 passes through
The material that internal cold water contact 3 surface of jacket type heat exchange plate cools down so that material 3 surface of jacket type heat exchange plate with
Bottom surface crystallization drives upper blade 61 and the rotation of lower coating blade 62 scraping 3 surface of jacket type heat exchange plate and bottom by rotation axis 21 at this time
Concentrate or crystal are pushed at notch 34, concentrate or crystalline substance by the crystalline solid in face when then upper blade 61 and lower coating blade 62 rotate
Body is slid from notch 34 to the discharge port 15 of 1 bottom of outer barrel, is then discharged from discharge port 15；
Steam (vapor) outlet 13 is connected to vacuum suction pressure charging system 7 by Low Temperature Steam pipeline 71, is sucked by vacuum pressure charging system 7
It is connected to water inlet manifold 4 by high-temperature steam pipeline 72, is respectively equipped on Low Temperature Steam pipeline 71 and high-temperature steam pipeline 72
One valve 100 and the second valve 101, the steam that material evaporation generates when being concentrated enter Low Temperature Steam pipeline by steam (vapor) outlet 13
In 71, pressurization temperature raising then is carried out by being sucked by vacuum pressure charging system 7, and the steam of temperature raising is led to by high-temperature steam pipeline 72
Entering water inlet manifold 4, the high-temperature steam then passed in water inlet manifold 4 enters the inside of jacket type heat exchange plate 3 by water inlet pipe 31,
Jacket type heat exchange plate 3 is heated, realizes the evaporation and concentration of material, and can be realized the circulation and stress of heat；Vacuum is taken out
During suction, vacuum pressure control bit is 0.1MPa-400Pa in tank body；
Outfall sewer 5 is connected to coolant system 9 or outfall sewer 5 by directly connecting by cooling water reflux pipeline 91
Carbonated drink discharge pipe line 92 is connect, while coolant system 9 is connected to water inlet manifold 4, cooling water reflux pipeline by cooling water pipeline 93
91, third valve 102, the 4th valve 103 and the 5th valve are respectively arranged in carbonated drink discharge pipe line 92 and cold line 93
104；When carrying out crystallisation by cooling to material, the water after flowing back in jacket type heat exchange plate 3 is logical through supercooled water reflux pipeline 91
Enter in coolant system 9, forms cooling water after the cooling of coolant system 9 and be passed through in water inlet manifold 4, cooling water is total by water inlet
The inside that pipe 4 enters jacket type heat exchange plate 3 carries out crystallisation by cooling to material, and water recycles after realization is cooling；When material into
When row is concentrated by evaporation, the hot water and steam of reflux are discharged or recycle by carbonated drink discharge pipe line 92；
Water inlet manifold 4 enters pipeline 81 by compressed air or high pressure water and connects compressed air or high pressure water purge system 8,
Compressed air or high pressure water, which enter on pipeline 81, is provided with the 6th valve 105, after material evaporation concentration or cooling, due to each pipe
Solid particle and harmful substance, compressed air or high pressure water purge system 8 have been left in steam in line and jacket type heat exchange plate 3
Constantly compressed air or height are blasted into water inlet manifold 4, water inlet pipe 31, jacket type heat exchange plate 3, outlet pipe 32, outfall sewer 5
Pressure water is purged, and remaining solid particle and harmful substance in pipeline and jacket type heat exchange plate 3 are removed.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (10)
1. crystallisation by cooling integral process is concentrated in a kind of vacuum flashing, which is characterized in that specific embodiment is as follows:
The first step, material enter vacuum flashing condensing crystallizing tank, are evaporated concentration using flash distillation in high temperature section, while material steams
The steam generated in hair concentration process is passed through in crystallizing tank after being compressed by pipeline flash compressor and recycles；
Second step, the material after concentration fall to tank bottom, fall to tank after being then concentrated by evaporation with circulating pump from pot bottom suction
The material at bottom, is then pumped into upper end forced circulation for material, and enhanced water evaporation stops material after being concentrated into a certain concentration dense
Contracting；
Then third step is entered in tank using refrigerant and is cooled down in heat exchange disk, reaches crystallization temperature needed for material, together
When by cooling medium to material evaporation when flash compressor compression after remaining steam cool down so that the temperature in tank is fast
It is fast sufficiently to reduce；
Material after crystallisation by cooling is entered back into subsequent processing and is filtered separation, simultaneously by the 4th step after material is completely cooling
Cooling water in tank is discharged by steam trap, obtains qualified liquid and crystallized product.
2. crystallisation by cooling integral process is concentrated in a kind of vacuum flashing according to claim 1, which is characterized in that the first step
The detailed process of middle evaporation and concentration are as follows: pressurization hot steam water is entered in several water inlet pipes (31) by water inlet manifold, is then led to
The inside that several water inlet pipes (31) enter jacket type heat exchange plate (3) is crossed, while material is pumped into vacuum flashing condensing crystallizing with pump
In tank, the internal steam of jacket type heat exchange plate (3) heats the material in cylinder (1) by jacket type heat exchange plate (3), adds
Hot water after heat is discharged into outfall sewer (5) by outlet pipe (32), enters carbonated drink delivery pipe spool by outfall sewer (5)
(92) it is discharged, while outer barrel (1) inside is added from feed inlet (11) in material, material is heated, wherein water in material
Get the vapor to evaporate, after evaporation to be discharged by steam (vapor) outlet (13), material concentration steps up at this time, and material is gradually dense
Contracting.
3. crystallisation by cooling integral process is concentrated in a kind of vacuum flashing according to claim 1, which is characterized in that the first step
Middle evaporation and concentration further includes following process: the steam formed in evaporating concentration process enters Low Temperature Steam by steam (vapor) outlet (13)
In pipeline (71), pressurization temperature raising then is carried out by being sucked by vacuum pressure charging system (7), and the steam of temperature raising is passed through into high-temperature steam
Pipeline (72) is passed through water inlet manifold (4), and the high-temperature steam then passed in water inlet manifold (4) enters collet by water inlet pipe (31)
The inside of formula heat exchanger plates (3), the internal steam of jacket type heat exchange plate (3) is by jacket type heat exchange plate (3) to the object in cylinder (1)
Material is heated, and is evaporated concentration to material, is realized the circulation and stress of heat.
4. crystallisation by cooling integral process is concentrated in a kind of vacuum flashing according to claim 1, which is characterized in that third step
The detailed process of middle material crystallization are as follows: enter cold water in several water inlet pipes (31) by water inlet manifold (4), then by several
Water inlet pipe (31) enters the inside of jacket type heat exchange plate (3), and jacket type heat exchange plate (3) is changed by internal cold water by jacket type
Hot plate (3) carries out crystallisation by cooling to the material after concentration, and material after cooling forms crystal and condenses in jacket type heat exchange plate (3)
Surface and bottom surface；By decelerating motor driving device control rotation axis (21) rotation, rotation axis (21) drive upper blade (61) and
The crystal on lower coating blade (62) rotation scraping jacket type heat exchange plate (3) surface and bottom surface, while upper blade (61) and lower coating blade (62)
Crystal is pushed at notch (34) in rotation process, crystal is slid at notch (34) to the discharge port of outer barrel (1) bottom
(15) it at, is then discharged at discharge port (15).
5. crystallisation by cooling integral process is concentrated in a kind of vacuum flashing according to claim 1, which is characterized in that third step
Middle material crystallization further includes following process: the water during crystallisation by cooling in jacket type heat exchange plate (3) after circulation is total through being discharged
After managing (5) discharge, the recirculated water of discharge is passed through in coolant system (9) through supercooled water reflux pipeline (91), by coolant system
(9) it forms cooling water after cooling to be passed through in water inlet manifold (4), cooling water enters jacket type heat exchange plate by water inlet manifold (4)
(3) inside continues crystallisation by cooling to material, and water recycles after realization is cooling.
6. crystallisation by cooling integral process is concentrated in a kind of vacuum flashing according to claim 1, which is characterized in that compression is empty
Gas purge system (8) constantly blasts air in outer barrel (1) and is purged, and removes in pipeline and jacket type heat exchange plate (3)
Remaining cold water.
7. crystallisation by cooling integral process is concentrated in a kind of vacuum flashing according to claim 1, which is characterized in that vacuum is dodged
Steaming condensing crystallizing tank includes outer barrel (1), is equipped at the top center of outer barrel (1) decelerating motor driving device (2), is slowed down
The power output end of motor driver (2) is fixedly connected with rotation axis (21), while being provided with feed inlet at the top of outer barrel (1)
(11), interface (12) and steam (vapor) outlet (13) are detected, material is fed by feed inlet (11)；The bottom center of outer barrel (1)
It is provided with discharge port (15)；
The inside of outer barrel (1) is sequentially installed with several jacket type heat exchange plates (3), the side of jacket type heat exchange plate (3) from top to bottom
Wall outer surface is fixed on the side wall inner surfaces of outer barrel (1), jacket type heat exchange plate (3) side wall by heat exchanger plates support (36)
It is provided with water inlet pipe (31) and outlet pipe (32), while one end of several water inlet pipes (31) is connected with water inlet manifold (4), it is several
One end of outlet pipe (32) is connected with outfall sewer (5)；
The surface middle part of jacket type heat exchange plate (3) is provided with through hole (33), and through hole (33) and jacket type heat exchange plate (3) are internal not
Connection, rotation axis (21) sequentially pass through the through hole (33) on several jacket type heat exchange plate (3) surfaces, and rotation axis is equipped on (21)
Several pairs of scraper groups (6), while the surface side of jacket type heat exchange plate (3) is provided with connection through hole (33) and extends to avris
The notch (34) of notch (34), several jacket type heat exchange plates (3) is corresponding；
Scraper group (6) includes the upper blade (61) and lower coating blade (62) being mounted on rotation axis (21), upper blade (61) and collet
The upper surface of formula heat exchanger plates (3) compresses, and the bottom surface of lower coating blade (62) and jacket type heat exchange plate (3) compresses.
8. crystallisation by cooling integral process is concentrated in a kind of vacuum flashing according to claim 7, which is characterized in that outer barrel
It (1) from top to bottom include being sequentially connected fixed upper cover (16), middle cylinder body (17) and lower head (18), upper cover (16) uses
Ellipsoidal head, butterfly end socket or plane end socket, lower head (18) is using conical end socket, square cone end socket, ellipsoidal head
Or butterfly end socket, it is connect between upper cover (16) and middle cylinder body (17) using flange (161)；Upper cover diameter is according to actual disposition
More than or less than middle cylinder body size, connected between upper cover (16) and middle cylinder body (17) using tapering transition at this time；Feed inlet
(11), interface (12) are detected and steam (vapor) outlet (13) is respectively positioned at the top of upper cover (16), while discharge port (15) is located at lower head
(18) bottom.
9. crystallisation by cooling integral process is concentrated in a kind of vacuum flashing according to claim 7, which is characterized in that jacket type
Heat exchanger plates (3) horizontal distribution, and several jacket type heat exchange plates (3) are equally distributed on the inside of outer barrel (1), jacket type heat exchange
Plate (3) is plate disk ring type or taper disk ring type, and every piece of jacket type heat exchange plate (3) surrounding is closed.
10. crystallisation by cooling integral process is concentrated in a kind of vacuum flashing according to claim 7, which is characterized in that collet
Formula heat exchanger plates (3) interior welds have several stiffener plates (35), and several limbers (351) are provided in stiffener plate (35).
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| CN111647465A (en) * | 2020-06-15 | 2020-09-11 | 江西思派思香料化工有限公司 | Copper pipe cooling type eucalyptus oil purification tank |
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