CN114570056A - Multifunctional efficient liquid freeze concentration and ice crystal separation equipment - Google Patents
Multifunctional efficient liquid freeze concentration and ice crystal separation equipment Download PDFInfo
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- CN114570056A CN114570056A CN202210314870.0A CN202210314870A CN114570056A CN 114570056 A CN114570056 A CN 114570056A CN 202210314870 A CN202210314870 A CN 202210314870A CN 114570056 A CN114570056 A CN 114570056A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/02—Crystallisation from solutions
- B01D9/04—Crystallisation from solutions concentrating solutions by removing frozen solvent therefrom
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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
- B01D9/0009—Crystallisation cooling by heat exchange by direct heat exchange with added cooling fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0018—Evaporation of components of the mixture to be separated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/005—Selection of auxiliary, e.g. for control of crystallisation nuclei, of crystal growth, of adherence to walls; Arrangements for introduction thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0063—Control or regulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0077—Screening for crystallisation conditions or for crystal forms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a multifunctional high-efficiency liquid freezing concentration and ice crystal separation device, which comprises a barrel body, an ice scraping mechanism, an ice slurry discharging machine and a control system, wherein the axes of an ice scraping mechanism assembly, the barrel body and a main shaft are consistent, the ice scraping mechanism assembly scrapes ice crystals or ice water mixtures in the barrel body and conveys the ice crystals or the ice water mixtures out of the ice slurry discharging machine when the device is operated, the ice crystals are quickly generated on the inner wall of an annular evaporator, a filter screen type spiral sheet can scrape the ice crystals from the inner wall of the annular evaporator and can filter and push the ice crystals in a solution in an ice slurry mixed solution cabin upwards, a negative pressure liquid suction pipe sucks the water solution in the ice water mixtures in an ice liquid separation cabin into a liquid storage barrel through a net-shaped suction port under the negative pressure of a negative pressure air suction pipe, the content of the water in the ice slurry is effectively reduced, and the air jet pipe blows off the water on the surfaces of the ice crystals by high-speed air flow in an air pump and a fan when the ice is scraped, the working efficiency is improved by more than 5 times compared with similar products, time and labor are saved, and the cost is reduced.
Description
Technical Field
The invention relates to a multifunctional high-efficiency liquid freeze concentration and ice crystal separation device, which is a separation device for separating ice crystals from liquid in a mixed material of the ice crystals and the liquid, and can be widely applied to the ice crystal and liquid separation process in the processes of industrial wastewater treatment and freeze concentration of liquid food extract such as landfill leachate, traditional Chinese medicine fruit and vegetable juice and the like.
Background
Concentration is an important unit operation in liquid food processing, and mainly comprises three methods of evaporation, reverse osmosis and freezing concentration. Freeze concentration is a concentration method using the principle of solid-liquid phase equilibrium between ice and aqueous solution, and is carried out by cooling dilute solution to below freezing point (freezing point) of water to freeze part of water into ice crystal, separating out ice crystal and obtaining concentrated solution. Industrially, there are two forms of crystallization during freeze concentration: one is that the water in the dilute solution forms a thick ice layer on the cold surface, and the ice layer can be separated manually after partial melting ice makes the ice layer separated from the wall of the device, and the mode is called progressive lamellar crystallization; another way in which ice formation occurs in a stirred suspension is by the growth and separation of a large number of ice crystals dispersed in suspension in the mother liquor, known as suspension crystallization. The suspension crystallization method is to form a large amount of ice crystals in the mother liquor, the surface area of the ice crystals in unit volume is large, clean ice crystals can be quickly formed, and the concentration end point is large. The Thijssen, et al, Eindhoven university, the Netherlands, successfully utilized the Ostwald ripening effect in the 70 s to set up a recrystallization process to produce large ice crystals and to establish mathematical models of ice crystal growth and seed size and addition, from which a freeze concentration technique was applied to industrial production utilization: when concentrating, firstly pumping the concentrated material into a scraper heat exchanger, generating partial fine ice crystals, then sending the partial fine ice crystals into a recrystallization tank, melting small ice crystals and growing large ice crystals due to the Ostwald effect, then removing the ice crystals through a cleaning tower, simultaneously washing and recovering concentrated solution attached to the surfaces of the ice crystals by partial ice melting solution, refluxing the cleaning solution to a feeding end, circulating the concentrated solution to the required concentration and then discharging the concentrated solution from the bottom of the crystallization tank, the method is used for producing instant coffee, instant tea, concentrated orange juice and the like, the loss of effective components in the process of concentrating the coffee is less than 1%, and the vitamin protection is good in the process of concentrating the juice.
Disclosure of Invention
In order to solve the problems, the invention discloses a multifunctional high-efficiency liquid freezing concentration and ice crystal separation device which has the advantages of good concentration effect, high efficiency, consumption reduction, energy conservation, time and labor conservation and improvement on the working efficiency.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a multifunctional high-efficiency liquid freezing concentration and ice crystal separation device comprises a barrel body, a normal-temperature liquid state cabin, an ice slurry mixed liquid cabin, an ice liquid separation cabin, an ice scraping mechanism, an ice slurry discharging machine and a control system, wherein an ice scraping mechanism assembly is arranged at the upper end of the barrel body, heat insulation plates are arranged outside the barrel body, an annular evaporator, the ice scraping mechanism assembly and the ice slurry discharging machine, a bottom plate is arranged at the lower part of the barrel body, a bearing seat is arranged at the central position of the bottom plate, the lower end of a main shaft is connected with the upper end of a bearing on the bottom plate through a coupling and is connected with a variable-frequency speed reduction motor III, the barrel body and the ice scraping mechanism assembly are of a circular structure, the diameter of the ice scraping mechanism assembly is larger than that of the barrel body, the axes of the ice scraping mechanism assembly, the barrel body and the main shaft are consistent, a three-dimensional scraper support is arranged in the ice scraping mechanism assembly, an end cover is arranged at the upper part of the ice scraping mechanism assembly, and is arranged in the middle of the end cover, the shaft sleeve is internally provided with a main shaft upper bearing and a main shaft middle bearing, the inner wall of the shaft sleeve is provided with an electrified pile, sealing rings are arranged above the main shaft upper bearing and below the main shaft middle bearing, a scraper support upper bearing and a scraper support lower bearing are arranged above the central part of the three-dimensional scraper support, the outer wall of the shaft sleeve penetrates through the inner rings of the scraper support upper bearing and the scraper support lower bearing in the three-dimensional scraper support, the driven sprocket is arranged above the scraper support upper bearing which is arranged by taking the three-dimensional scraper support as the center, an air pump is arranged inside the three-dimensional scraper support, the other side of the air pump is provided with a fan, the bottom of the three-dimensional scraper support is provided with an ice scraper, an air jet pipe is arranged at a position parallel to the ice scraper, the air pump is connected with the fan and the air jet pipe, the lower ends of two sides of the three-dimensional scraper support are provided with high-pressure air jet ports, and two sides of the upper end of the three-dimensional scraper support are provided with limiting pulleys, an end cover is arranged at the upper end of the ice scraping mechanism assembly, a sliding contact conductive rail is arranged at the middle position of the end cover, an access hole is arranged at one side of the upper part of the end cover, a variable-frequency speed reduction motor II is arranged at the other side of the end cover, a driving sprocket is arranged on an output shaft of the variable-frequency speed reduction motor II, the driving sprocket is connected with a driven sprocket through a chain, a monitoring camera is arranged below the end cover, safety guardrails are arranged on the periphery above the end cover, an ice slurry discharging machine is arranged at one side of the ice scraping mechanism assembly, two sprockets are arranged in the ice slurry discharging machine, an external scraper chain is arranged on the two sprockets, a first variable-frequency speed reduction motor is arranged outside the ice slurry discharging machine, a camera and a high-pressure water spray nozzle are arranged above the ice slurry discharging machine, an ice slurry discharging port is arranged at one end of the ice slurry discharging machine, the upper part of the barrel body is an ice-liquid separation cabin, and a high-concentration liquid collection box is arranged on the barrel body outside the ice-liquid separation cabin, the ice slurry separation chamber is characterized in that ice slurry water filtering holes are formed in a barrel body on the inner side of the high concentrated liquid collection tank, a pipeline five is arranged on the lower portion of the high concentrated liquid collection tank, a mechanical touch switch I, a mechanical touch switch II and a mechanical touch switch III are sequentially arranged on the barrel body from top to bottom, a plurality of negative pressure liquid suction pipes are arranged in the ice slurry separation chamber and are perpendicular to the barrel body, a plurality of net-shaped suction ports are formed in each negative pressure liquid suction pipe, all the negative pressure liquid suction pipes are connected with a liquid storage barrel on the outer side of the barrel body, a negative pressure air suction pipe is arranged at the upper end of the liquid storage barrel, the lower portion of the ice slurry separation chamber is a low-temperature chamber, an annular evaporator is arranged on the periphery outside the low-temperature chamber, a plurality of cold-carrying liquid distributing pipes are arranged in the annular evaporator, all the cold-carrying liquid distributing pipes are communicated with a water separator, a low-temperature cold-carrying liquid main liquid inlet is formed in the water separator, a cold-carrying liquid collection tank is arranged at the other end of the annular evaporator, all the cold-carrying liquid distributing pipes are communicated with the cold-carrying liquid collection tank, a regulating valve is arranged on the cold-carrying liquid outlet branch pipe, a cold-carrying liquid main liquid outlet is arranged at the lower end of the cold-carrying liquid collecting tank, a filter screen type spiral sheet is arranged on a main shaft, the height position of the main shaft is symmetrical to the annular evaporator, a liquid spray pipe is arranged on the surface of the filter screen type rotary sheet, ice scrapers are arranged at the edges of two sides of the filter screen type rotary sheet, a liquid spray pipe is arranged on one side of each ice scraper, a plurality of liquid spray holes are formed in the liquid spray pipe, an ice slurry mixed liquid cabin is arranged at the lower part of the low-temperature cabin, a low-temperature liquid material liquid inlet pipe and a second access hole are arranged on the outer wall of the low-temperature cabin, a rotary water connector II is arranged on the main shaft, the height position of the main shaft corresponds to the ice slurry mixed liquid cabin, the rotary water connector II is communicated with a liquid outlet of the low-temperature resistant variable-frequency water pump through a pipeline I, a pipeline III arranged on a barrel body of the normal-temperature liquid cabin is communicated with a pipeline II arranged at the barrel body of the ice slurry mixed liquid cabin through a three-way valve, the inlet of the low-temperature-resistant variable-frequency water pump is connected with the other bore of the three-way valve, the lower part of the ice slurry mixed liquid cabin is a normal-temperature liquid cabin, a filter screen is arranged at the boundary of the ice slurry mixed liquid cabin and the normal-temperature liquid cabin, a filter screen scraper is arranged above the filter screen by taking the main shaft as the center, a liquid spraying pipe is arranged below the filter screen, a plurality of spraying holes are arranged on the liquid spraying pipe, a first rotary water connector is arranged on the main shaft below the filter screen and communicated with the liquid spraying pipe, two ends of a fourth pipeline are respectively connected with the first rotary water connector and the variable-frequency low-temperature-resistant high-pressure water pump, a one-way valve is arranged on the fourth pipeline, an access hole is arranged on the barrel body on one side of the normal-temperature liquid cabin, a liquid material outlet is arranged on the other side of the barrel body, a bearing is arranged in a bearing seat and connected with the lower part of the main shaft, the upper part of the ladder stand is connected with an end cover and vertically arranged along the barrel body, and a ladder guardrail is arranged around the ladder, the low-temperature-resistant variable-frequency water pump, the variable-frequency low-temperature-resistant high-pressure water pump, the fan, the air pump, the variable-frequency speed reducing motor I, the variable-frequency speed reducing motor II, the variable-frequency speed reducing motor III, the mechanical touch switch I, the mechanical touch switch II, the mechanical touch switch III and the camera are all connected with the control system.
As an improvement of the ice scraping machine, the barrel body and the ice scraping mechanism assembly are of a circular structure, the diameter of the ice scraping mechanism assembly is larger than that of the barrel body, the axes of the ice scraping mechanism assembly, the barrel body and the main shaft are consistent, the ice scraping mechanism assembly is arranged at the upper end of the barrel body, insulation boards are arranged outside the barrel body, the annular evaporator, the ice scraping mechanism assembly and the ice slurry discharging machine, a bottom plate is arranged at the lower part of the barrel body, a bearing seat is arranged at the central position of the bottom plate, and the lower end of the main shaft is connected with the upper end of a bearing on the bottom plate and is connected with a variable-frequency speed reduction motor III through a coupling.
As an improvement of the invention, a three-dimensional scraper support is arranged in the ice scraping mechanism assembly, an end cover is arranged at the upper part of the ice scraping mechanism assembly, a shaft sleeve is arranged in the middle of the end cover, a main shaft upper bearing and a main shaft middle bearing are arranged in the shaft sleeve, a power receiving pile is arranged on the inner wall of the shaft sleeve, sealing rings are arranged above the main shaft upper bearing and below the main shaft middle bearing, a scraper support lower bearing is arranged below the scraper support upper bearing above the center part of the three-dimensional scraper support, the outer wall of the shaft sleeve penetrates through the inner rings of the scraper support upper bearing and the scraper support lower bearing in the three-dimensional scraper support, and a driven sprocket is arranged above the scraper support upper bearing which is arranged by taking the three-dimensional scraper support as the center.
As an improvement of the invention, an air pump is arranged inside the three-dimensional scraper support, a fan is arranged on the other side of the air pump, an ice scraper is arranged at the bottom of the three-dimensional scraper support, an air jet pipe is arranged at a position parallel to the ice scraper, the air pump is connected with the fan and the air jet pipe, and high-pressure air nozzles are arranged at the lower ends of two sides of the three-dimensional scraper support.
As an improvement of the ice scraping mechanism assembly, limiting pulleys are arranged on two sides of the upper end of the three-dimensional scraper support, an end cover is arranged at the upper end of the ice scraping mechanism assembly, a sliding contact conductive rail is arranged at the middle position of the end cover, an access hole is formed in one side of the upper portion of the end cover, a second variable-frequency speed reduction motor is arranged at the other side of the end cover, a driving chain wheel is arranged on an output shaft of the second variable-frequency speed reduction motor and connected with a driven chain wheel through a chain, an ice slurry discharging machine is arranged on one side of the ice scraping mechanism assembly, two chain wheels are arranged in the ice slurry discharging machine, an external scraper chain is arranged on the two chain wheels, a first variable-frequency speed reduction motor is arranged outside the ice slurry discharging machine, a camera and a high-pressure water spraying port are arranged above the ice slurry discharging machine, and an ice slurry discharging port is arranged at one end of the ice slurry discharging machine.
As an improvement of the ice-water separation device, the upper portion of the barrel body is an ice-water separation chamber, a high-concentration liquid collecting tank is arranged on the barrel body on the outer side of the ice-water separation chamber, ice slurry water filtering holes are formed in the barrel body on the inner side of the high-concentration liquid collecting tank, a pipeline five is arranged on the lower portion of the high-concentration liquid collecting tank, a mechanical touch switch I, a mechanical touch switch II and a mechanical touch switch III are sequentially arranged on the barrel body from top to bottom, a plurality of negative pressure liquid suction pipes are arranged in the ice-water separation chamber and perpendicular to the barrel body, a plurality of net-shaped suction ports are formed in each negative pressure liquid suction pipe, all the negative pressure liquid suction pipes are connected with a liquid storage barrel on the outer side of the barrel body, and a negative pressure exhaust pipe is arranged at the upper end of the liquid storage barrel.
As an improvement of the invention, the lower part of the ice slurry separation cabin is a low-temperature cabin, an annular evaporator is arranged on the periphery outside the low-temperature cabin, a plurality of cold-carrying liquid distributing pipes are arranged in the annular evaporator, all the cold-carrying liquid distributing pipes are communicated with a water separator, a main low-temperature cold-carrying liquid inlet is arranged on the water separator, a cold-carrying liquid collecting tank is arranged at the other end of the annular evaporator, all cold-carrying liquid outlet branch pipes are communicated with the cold-carrying liquid collecting tank, an adjusting valve is arranged on each cold-carrying liquid outlet branch pipe, a main cold-carrying liquid outlet is arranged at the lower end of the cold-carrying liquid collecting tank, a filter screen type spiral sheet is arranged on a main shaft of which the height position of the main shaft is symmetrical to that of the annular evaporator, a liquid spraying pipe is arranged on the surface of the filter screen type spiral sheet, ice scraping knives are arranged at the edges of two sides of the filter screen type rotary sheet, a liquid spraying pipe is arranged at one side of the ice scraping knives, and a plurality of liquid spraying holes are arranged on the liquid spraying pipe.
As an improvement of the invention, the lower part of the low-temperature cabin is an ice slurry mixed liquid cabin, the outer wall of the low-temperature cabin is provided with a low-temperature liquid material liquid inlet pipe and a second access hole, the main shaft with the height position corresponding to the ice slurry mixed liquid cabin is provided with a second rotary water connector, the second rotary water connector is communicated with a liquid outlet of the low-temperature resistant variable frequency water pump through a first pipeline, a third pipeline arranged on a barrel body of the normal-temperature liquid cabin is communicated with a second pipeline arranged at the barrel body of the ice slurry mixed liquid cabin through a three-way valve, and a liquid inlet of the low-temperature resistant variable frequency water pump is connected with the other diameter port of the three-way valve.
As an improvement of the invention, the lower part of the ice slurry mixing liquid cabin is a normal-temperature liquid cabin, a filter screen is arranged at the boundary of the ice slurry mixing liquid cabin and the normal-temperature liquid cabin, a filter screen scraper is arranged above the filter screen by taking the main shaft as the center, a liquid spraying pipe is arranged below the filter screen, a plurality of spray holes are arranged on the liquid spraying pipe, a first rotary water connector is arranged on the main shaft below the filter screen and communicated with the liquid spraying pipe, two ends of a fourth pipeline are respectively connected with the first rotary water connector and a variable-frequency low-temperature-resistant high-pressure water pump, and a one-way valve is arranged on the fourth pipeline.
As an improvement of the invention, a manhole is arranged on a barrel body on one side of the normal-temperature liquid tank, a liquid material outlet is arranged on the other side of the normal-temperature liquid tank, a bearing is arranged in a bearing seat and is connected with the lower part of a main shaft, the upper part of a ladder stand is connected with an end cover and is vertically arranged along the barrel body, a ladder stand guardrail is arranged by wrapping the ladder stand, and a low-temperature-resistant variable-frequency water pump, a variable-frequency low-temperature-resistant high-pressure water pump, a fan, an air pump, a first variable-frequency speed motor, a second variable-frequency speed motor, a third variable-frequency speed motor, a first mechanical touch switch, a second mechanical touch switch, a third mechanical touch switch and a camera are all connected with a control system.
The invention has the beneficial effects that:
1. by a central/centripetal ice discharging method, namely the sum of the buoyancy of ice crystals and the centripetal force generated on the ice crystals when the liquid surface rotates is utilized, the ice crystals in the barrel can naturally move to the ice scraping mechanism assembly at the top and can be smoothly discharged under the operation of the ice scraping blade, and the separation efficiency of the ice crystals is greatly improved;
2. the main shaft is linked with the filter screen type spiral piece and the filter screen scraper to separate ice crystals in the liquid from the barrel wall and the filter screen upwards and concentrate, the ice crystal collecting effect is obvious, and the ice crystal separating speed is high;
3. the rotating speed of the ice scraping mechanism is adjusted according to the viscosity of the liquid and the size of the ice crystals, and the centripetal force applied to the ice crystals can be changed, so that the speed of the ice scraping mechanism is adjusted;
4. because the centripetal force borne by the ice crystals is related to the size of the ice crystals, the ice crystals with large particles have large centripetal force and high speed of moving to the center, so that the large ice crystals are preferentially discharged, the small ice crystals are finally discharged or not discharged due to insufficient centripetal force, and the small ice crystals remained in the liquid can continue to grow into the large ice crystals and then be discharged, thereby being beneficial to reducing the solute loss caused by surface entrainment;
5. because the ice crystal growth rate is related to the ice crystal surface area, and the small ice crystals left have large specific surface area, the ice crystal growth rate in the tank body is favorably improved, so that the production efficiency of concentrated solution is improved, the separation efficiency is high, and the concentration of the separated micro ice crystals in the total separated product can reach 75-95%;
6. when ice crystals in mixed materials formed in other containers are to be separated from liquid, the materials mixed with the ice crystals and the liquid are input or directly poured into the barrel, and the annular evaporator and the ice scraping mechanism assembly are started, so that the ice crystals can be separated from the liquid, and the applicability is strong;
7. the cabins in the barrel body and the devices in the barrel body cooperate with each other to lead the freezing concentration and separation processes of the liquid to form integral continuity, the ice crystal grows rapidly, and the ice slurry is discharged rapidly;
8. the Ostwald ripening effect is realized, small ice crystals carried in high concentration are melted, and small ice crystals carried in low concentration are grown into large ice crystals, so that solute carrying is reduced, the large ice crystals are stirred forcibly, and finally the formed large ice crystals are discharged from the barrel body through the centripetal force generated by the rotation of the ice scraping mechanism at the top;
9. after ice crystals formed on a heat exchange interface of the inner wall of the annular evaporator are separated by the ice scraping knives on two sides of the filter screen type spiral piece, the ice crystals can automatically float to the liquid level of the ice-liquid separation cabin by virtue of buoyancy due to low density of the ice crystals, and meanwhile, cold energy is transferred to the upper part from the annular evaporator, so that the exchange of energy and quality is spontaneously realized, and concentrated liquid automatically sinks to the bottom due to high density.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of a ring evaporator according to the present invention.
Fig. 3 is a sectional view of a ring-shaped evaporator according to the present invention.
Fig. 4 is a schematic view of the installation angle position of the ice scraping blade on the ice scraping mechanism according to the present invention.
Fig. 5 is a schematic view of a doctor blade according to the invention.
Fig. 6 is a schematic view of the spindle of the present invention.
Fig. 7 is a schematic cross-sectional view of a spindle according to the present invention.
Fig. 8 is a schematic view of the cold carrier liquid-distributing pipe according to the present invention.
Fig. 9 is a schematic view of a negative pressure pipette according to the invention.
List of reference numerals:
1. a barrel body, 2, a normal temperature liquid cabin, 3, an ice slurry mixed liquid cabin, 4, an ice liquid separating cabin, 5, an ice scraping mechanism, 6, an ice slurry discharging machine, 7, a low temperature cold liquid carrying main liquid inlet, 8, a low temperature cabin, 9, a pipeline I, 10, a ladder stand guardrail, 11, a low temperature resistant variable frequency water pump, 12, a three-way valve, 13, a pipeline II, 14, a filter screen, 15, a pipeline III, 16, a liquid material outlet, 17, a bearing seat, 18, a bearing, 19, a bottom plate, 20, a liquid spraying opening, 21, a rotary water connector I, 22, a pipeline IV, 23, an access hole, 24, a one-way valve, 25, a filter screen scraper, 26, an access hole II, 27, a rotary water connector II, 28, a low temperature liquid material inlet pipe, 29, a cold liquid carrying main liquid outlet, 30, a cold liquid carrying water collecting tank, 31, a regulating valve, 32, a cold liquid carrying liquid outlet branch pipe, 33, a liquid spraying pipe, 34, an ice scraper, 35 and a filter screen type spiral piece, 36. liquid spraying holes 37, a main shaft 38, an ice slurry water filtering hole 39, a main shaft intermediate bearing 40, a sealing ring 41, an ice slurry discharging hole 42, a chain wheel 43, an external scraper type chain 44, a fan 45, a variable frequency speed reducing motor I, 46, a high pressure water spraying hole 47, a scraper bracket upper bearing 48, a camera 49, a limiting pulley 50, a chain 51, a variable frequency speed reducing motor II, 52, a coupling 53, a variable frequency speed reducing motor III, 54, a safety guardrail 55, a sliding contact conductive rail 56, a main shaft upper bearing 57, an electric pile 58, an inspection hole 59, a driven chain wheel 60, a shaft sleeve 61, an ice scraping mechanism assembly 62, an air pump 63, a three-dimensional scraper bracket 64, a high pressure air spraying hole 65, an ice scraping knife 66, an air spraying pipe 67, a mechanical contact pressure switch I, 68, a scraper bracket lower bearing 69, a pipeline five, 70 and a mechanical contact pressure switch II, 71. the device comprises a mechanical touch switch III, a mechanical touch switch 72, a cold-carrying liquid distribution pipe 73, an annular evaporator 74, a water distributor 75, a ladder stand 76, spray holes 77, a high-concentration liquid collection tank 78, a driving sprocket 79, a variable-frequency low-temperature-resistant high-pressure water pump 80, a control system 81, an end cover 82, a negative pressure liquid suction pipe 83, a mesh suction hole 84, a liquid storage barrel 85, a negative pressure air suction pipe 86 and a heat insulation board.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in the figure, the multifunctional high-efficiency liquid freezing concentration and ice crystal separation equipment comprises a barrel body 1, a normal-temperature liquid tank 2, an ice slurry mixed liquid tank 3, an ice liquid separation tank 4, an ice scraping mechanism 5, an ice slurry discharging machine 6 and a control system, wherein the upper end of the barrel body 1 is provided with an ice scraping mechanism assembly 61, the barrel body 1, an annular evaporator 73, the ice scraping mechanism assembly 61 and the ice slurry discharging machine 6 are all provided with heat insulation plates 86 outside, the lower part of the barrel body 1 is provided with a bottom plate 19, a bearing seat 17 is arranged at the central position of the bottom plate 19, the lower end of a main shaft 37 is connected with the upper end of a bearing 17 on the bottom plate through a coupler 52 and is connected with a variable-frequency speed reduction motor III 53, the barrel body 1 and the ice scraping mechanism assembly 61 are of a circular structure, the diameter of the ice scraping mechanism assembly 61 is larger than that of the barrel body 1, and the axes of the ice scraping mechanism assembly 61, the barrel body 1 and the main shaft 37 are the same, a three-dimensional scraper bracket 63 is arranged in the ice scraping mechanism assembly 61, an end cover 81 is arranged at the upper part of the ice scraping mechanism assembly 61, a shaft sleeve 60 is arranged at the middle part of the end cover 81, an upper main shaft bearing 56 and a middle main shaft bearing 39 are arranged in the shaft sleeve 60, a charged pile 57 is arranged on the inner wall of the shaft sleeve 60, sealing rings 40 are arranged above the upper main shaft bearing 56 and below the middle main shaft bearing 39, a lower scraper bracket bearing 68 is arranged below an upper scraper bracket bearing 47 arranged above the central part of the three-dimensional scraper bracket 63, the outer wall of the shaft sleeve 60 penetrates through the inner rings of the upper scraper bracket bearing 47 and the lower scraper bracket bearing 68 in the three-dimensional scraper bracket 63, the driven sprocket 59 is arranged above the upper scraper bracket bearing 47 which is arranged by taking the three-dimensional scraper bracket 63 as the center, an air pump 62 is arranged in the three-dimensional scraper bracket 63, and a fan 44 is arranged at the other side of the air pump 62, an ice scraping knife 65 is arranged at the bottom of the three-dimensional scraper support 63, an air jet pipe 66 is arranged at a position parallel to the ice scraping knife 65, an air pump 62 is connected with the fan 44 and the air jet pipe 66, high-pressure air jet ports 64 are arranged at the lower ends of two sides of the three-dimensional scraper support 63, limiting pulleys 49 are arranged at two sides of the upper end of the three-dimensional scraper support 63, an end cover 81 is arranged at the upper end of the ice scraping mechanism assembly 61, a sliding contact conductive rail 55 is arranged at the middle position of the end cover 81, an access hole 58 is arranged at one side of the upper part of the end cover 81, a variable-frequency speed reducing motor II 53 is arranged at the other side of the end cover 81, a driving sprocket 78 is arranged on an output shaft of the variable-frequency speed reducing motor II 53, the driving sprocket 78 is connected with a driven sprocket 59 through a chain 50, a monitoring camera 48 is arranged below the end cover 81, safety guardrails 54 are arranged around the upper part of the end cover 81, an ice slurry discharging machine 6 is arranged at one side of the ice scraping mechanism assembly 61, two chain wheels 42 are arranged in the ice slurry discharging machine 6, external scraper type chains 43 are arranged on the two chain wheels 42, a first variable frequency speed reduction motor 45 is arranged outside the ice slurry discharging machine 6, a camera 48 and a high-pressure water spray nozzle 46 are arranged above the ice slurry discharging machine 6, an ice slurry discharge port 41 is arranged at one end of the ice slurry discharging machine 6, the upper part of the barrel body 1 is an ice-liquid separation chamber 4, a high-concentration liquid collecting tank 77 is arranged on a barrel body outside the ice-liquid separation chamber 4, an ice slurry water filtering hole 38 is arranged on the barrel body 1 inside the high-concentration liquid collecting tank 77, a fifth pipeline 69 is arranged at the lower part of the high-concentration liquid collecting tank 77, a first mechanical touch pressure switch 67, a second mechanical touch pressure switch 70 and a third mechanical touch pressure switch 71 are sequentially arranged from top to bottom in the barrel body 1, a plurality of negative pressure 82 are arranged in the ice slurry separation chamber 4 in a state vertical to the barrel body, and a plurality of net-shaped suction ports 83 are arranged on each negative pressure liquid suction pipe 82, all the negative pressure liquid suction pipes 82 are connected with a liquid storage barrel 84 outside the barrel body 1, the upper end of the liquid storage barrel 84 is provided with a negative pressure air suction pipe 85, the lower part of the ice slurry separation chamber 4 is a low-temperature chamber 8, an annular evaporator 73 is arranged on the periphery outside the low-temperature chamber 8, a plurality of cold-carrying liquid distribution pipes 72 are arranged in the annular evaporator 73, all the cold-carrying liquid distribution pipes 72 are communicated with a water separator 74, a low-temperature cold-carrying liquid main liquid inlet 72 is arranged on the water separator 74, a cold-carrying liquid collecting tank 30 is arranged at the other end of the annular evaporator 73, all cold-carrying liquid outlet branch pipes 32 are communicated with a cold-carrying liquid collecting tank 30, a regulating valve is arranged on each cold-carrying liquid outlet branch pipe 32, a cold-carrying liquid main liquid outlet 29 is arranged at the lower end of each cold-carrying liquid collecting tank 30, a filtering net type spiral sheet 35 is arranged on a main shaft 37 at the height position of the main shaft 37, which is symmetrical to the annular evaporator 73, the surface of the filtering net type rotary sheet 35 is provided with a liquid spraying pipe 33, the two side edges of the filter screen type spiral sheet 35 are provided with an ice scraping blade 34, one side of the ice scraping blade 34 is provided with a liquid spraying pipe 33, the liquid spraying pipe 33 is provided with a plurality of liquid spraying holes 36, the lower part of the low-temperature chamber 8 is an ice slurry mixed liquid chamber 3, the outer wall of the low-temperature chamber 8 is provided with a low-temperature liquid material liquid inlet pipe 28 and a second access hole 26, the height position of the main shaft 37 is provided with a rotary water connector 27 on the main shaft 37 corresponding to the ice slurry mixed liquid chamber 3, the rotary water connector 27 is communicated with a liquid outlet of the low-temperature resistant variable frequency water pump 11 through a pipeline I, a pipeline III 15 arranged on the barrel body 1 of the normal-temperature liquid chamber is communicated with a pipeline II 13 arranged at the barrel body 1 of the ice slurry mixed liquid chamber 3 through a three-way valve 12, a liquid inlet of the low-temperature resistant variable frequency water pump 11 is connected with the other diameter opening of the three-way valve 12, the lower part of the ice slurry mixed liquid chamber 3 is a normal-temperature liquid chamber 2, a filter screen 14 is arranged at the boundary of the normal-temperature liquid chamber 3 and the normal-temperature liquid chamber 2, a filter screen scraper 25 is arranged above the filter screen 14 by taking the main shaft 37 as a center, a liquid spraying pipe 33 is arranged below the filter screen 14, a plurality of spray holes 76 are arranged on the liquid spraying pipe 33, a first rotary water connector 21 is arranged on the main shaft 37 below the filter screen 14, a first rotary water connector 21 is communicated with the liquid spraying pipe 33, two ends of a pipeline four 22 are respectively connected with the first rotary water connector 21 and a variable-frequency low-temperature-resistant high-pressure water pump 79, a one-way valve 24 is arranged on the pipeline four 22, an access hole 58 is arranged on the barrel body 1 on one side of the normal-temperature liquid cabin 2, a liquid material outlet 16 is arranged on the other side of the normal-temperature liquid cabin 2, a bearing 18 is arranged in a bearing seat 17 and is connected with the lower part of the main shaft 37, an end cover 81 is connected to the upper part of the ladder 75 and is vertically arranged along the barrel body 1, a ladder guardrail 10 is arranged to wrap the ladder 75, the low-temperature-resistant variable-frequency water pump 11, the variable-temperature-resistant high-pressure water pump 79, a fan 44, an air pump 62, a variable-frequency speed motor 45, The second variable-frequency speed reducing motor 51, the third variable-frequency speed reducing motor 53, the first mechanical touch switch 67, the second mechanical touch switch 70, the third mechanical touch switch 71 and the camera 48 are all connected with the control system 80.
The normal liquid concentrate ice crystal separation machine principle is: a liquid passing through a cryocrystallizer is cooled by direct contact with cooling surfaces (ice crystal nuclei migrate from the inner surface of the entire volume of the tubular member). The crystallizer, which converts the initial feed stream into ice slurry and concentrate, includes an SSC that creates, pumps and removes ice slurry and uses a secondary cooling system. After SSC, a mixture of concentrate and ice crystals is separated and the ice crystals are continuously discharged from the ice separator. However, the method according to the above patent is inefficient because of the blockage of the entire tubular element volume. The scrapers rotate about their axes causing a large amount of liquid to be forced in all directions from the shaft to the cooling surface. The ice crystals themselves accelerate to the axis of the shell due to the difference existing between the ice and liquid densities. The newly grown portions of ice continuously press and wrap the rotating shaft. This phenomenon leads to a reduction in the cross section of the crystallizer and to a stop of the operating mode. In the case of a highly commingled liquid feed stream, the effectiveness of freezing and the ability to separate ice crystals from the mother liquor is significantly reduced because the ice crystals produced are relatively small and thus the centrifugation is low. Another serious drawback of the above process is that the known crystallizer efficiency is very low because of the low value of the heat transfer coefficient from the coolant (brine) to the feed stream (not more than 400W/(m2 · K)). This is why this method requires a larger heat transfer surface (by 50 ÷ 100%) compared to other feed technologies (i.e., pump-less overfeed refrigerant systems), frequent attention to feed stream stability, and compressor protection on the refrigerant side. Furthermore, the formation of ice on the inner surface of the crystallizer shell requires a considerable energy consumption, since each new layer of ice creates an additional thermal resistance to the next layer of ice. This makes it necessary to lower the evaporation temperature of the refrigerant. For example, for a partially crystallized slurry in which ice constitutes 50% of the treated liquid at a crystallization temperature of-3 ℃, the final maximum temperature needs to be minus 6 ℃ { [1- (-3 ℃/-6 ℃) ] × 100% } 50%. In the case of a stainless steel crystallizer housing and a stainless steel brine cooler body, the minimum temperature drop (temperature drop) between the liquid being treated and the boiling refrigerant will be about (15 ÷ 20 ℃). The growth of the ice layer on the cooling surfaces of the crystallizer causes a reduction of the refrigerant temperature by about 10 ℃. At the same time, each reduction in evaporation temperature of 1 ℃ corresponds to a 4% reduction in cold capacity. This means that a temperature drop of 10 c of the evaporation temperature results in a 40% reduction of the refrigeration capacity of the compressor and, correspondingly, in a 20 ÷ 30% increase in the compressor power consumption, and according to one aspect of the invention, a system for providing continuous three-dimensional crystallization of a liquid comprises a liquid supply circuit for providing the liquid, a mixer fed with the liquid and a predetermined gas for producing a liquid-gas mixture, and a crystallizer fed with the liquid-gas mixture for three-dimensional crystallization of the mixture to produce ice crystals. The liquid supply circuit may comprise a cooling device for pre-cooling the liquid before supplying it to the mixer. The present invention relates to a method and an apparatus for liquid continuous crystallization by freezing.
The multifunctional efficient liquid freezing concentration and ice crystal separation equipment disclosed by the invention has the same principle as a normal ice crystal concentration separator, and is different from the normal ice crystal concentration separator in that the internal structure of the equipment is greatly improved, the ice crystal manufacturing speed is high, the ice crystal separation is rapid, the concentration effect is good, the equipment is more environment-friendly, the labor cost is reduced, and the cost is saved.
Difference 1: the barrel body is provided with an ice scraping mechanism assembly, the barrel body and the ice scraping mechanism assembly are of a circular structure, the diameter of the ice scraping mechanism assembly is larger than that of the barrel body, the axes of the ice scraping mechanism assembly, the barrel body and the spindle are consistent, ice crystal making speed is high, and ice crystals can be conveniently discharged.
Difference 2: the inside of three-dimensional scraper support is equipped with the air pump, the opposite side of air pump is equipped with the fan, the bottom of three-dimensional scraper support is equipped with scrapes the skates, the position that scrapes skates parallel phase is equipped with jet-propelled pipe, air pump and fan are connected with jet-propelled pipe, the lower extreme of the both sides of three-dimensional scraper support is equipped with the high-pressure air jet, when scraping ice, the strong wind that blows out in the high-pressure gas of blowout and the fan in the jet-propelled pipe forms the air current, continuous moisture in the ice crystal is dispelled towards its below, the ice crystal purity of making out is high, it is low to contain solution content.
Difference 3: the upper portion of the barrel body is an ice-liquid separation cabin, a high-concentration liquid collecting tank is arranged on a barrel body on the outer side of the ice-liquid separation cabin, ice slurry water filtering holes are formed in the barrel body on the inner side of the high-concentration liquid collecting tank, a pipeline V is arranged on the lower portion of the high-concentration liquid collecting tank, a mechanical touch switch I, a mechanical touch switch II and a mechanical touch switch III are sequentially arranged on the barrel body from top to bottom, a plurality of negative pressure suction pipes are arranged in the ice slurry separation cabin and perpendicular to the barrel body, a plurality of net-shaped suction ports are formed in each negative pressure suction pipe, all the negative pressure suction pipes are connected with a liquid storage barrel on the outer side of the barrel body, a negative pressure exhaust pipe is arranged at the upper end of the liquid storage barrel, an air exhauster is connected with the negative pressure exhaust pipe during operation, a large amount of solution moisture contained in ice slurry is sucked into the liquid storage barrel, ice crystal manufacturing speed is high, and the solution separation effect is good.
Difference 4: the lower part of the ice slurry separation cabin is a low-temperature cabin, an annular evaporator is arranged on the periphery of the outside of the low-temperature cabin, a plurality of cold-carrying liquid distributing pipes are arranged in the annular evaporator, all the cold-carrying liquid distributing pipes are communicated with a water separator, a low-temperature cold-carrying liquid main liquid inlet is arranged on the water separator, cold-carrying liquid enters the interior of the annular evaporator through the cold-carrying liquid distributing pipes during working, energy is dissipated and transmitted to the interior of the low-temperature cabin, the auxiliary refrigerating effect is good, a cold-carrying liquid collecting tank is arranged at the other end of the annular evaporator, all cold-carrying liquid outlet branch pipes are communicated with a cold-carrying liquid collecting tank, a regulating valve is arranged on a cold-carrying liquid outlet branch pipe, a cold-carrying liquid main liquid outlet is arranged at the lower end of the cold-carrying liquid collecting tank, cold-carrying liquid after being dissipated by the annular evaporator is discharged and circulated to a refrigerating unit through the cold-carrying liquid collecting tank, a filter screen type spiral sheet is arranged on a main shaft at the height position of which is symmetrical to the annular evaporator, the surface of filter screen formula revolving fragment is equipped with the spray line, and the both sides edge of filter screen formula revolving fragment is equipped with the skates, and one side of skates is equipped with the spray line, is equipped with a plurality of hydrojet holes on the spray line, and the skates of filter screen formula revolving fragment both sides constantly scrapes the whole scrapes of ice crystal that generates on the annular evaporator inner wall after the during operation main shaft rotates, has the solution of spray line the inside again, and continuous blowout disturbance, solution cooling rate is fast, generates the efficient of ice crystal.
Difference 5: the lower part of the low-temperature chamber is an ice slurry mixed liquid chamber, a low-temperature liquid material liquid inlet pipe and a second access hole are arranged on the outer wall of the low-temperature chamber, a rotary water connector II is arranged on a main shaft at the height position of the main shaft corresponding to the ice slurry mixed liquid chamber, the rotary water connector II is communicated with a liquid outlet of a low-temperature resistant variable frequency water pump through a pipeline I, a pipeline III arranged on a barrel body of the normal-temperature liquid chamber is communicated with a pipeline II arranged at the barrel body of the ice slurry mixed liquid chamber through a three-way valve, a liquid inlet of the low-temperature resistant variable frequency water pump is connected with the other diameter opening of the three-way valve, the low-temperature resistant variable frequency water pump leads the solution in the ice slurry mixed liquid chamber and the normal-temperature liquid chamber into a liquid spraying pipe on a filter screen type spiral sheet through a water channel in the main shaft in the pipeline I, the cold quantity on the annular evaporator is effectively diffused into the solution, and the stirring effect and the cold quantity diffusion effect is achieved.
Difference 6: the lower part of the ice slurry mixed liquid cabin is a normal-temperature liquid cabin, a filter screen is arranged at the boundary of the ice slurry mixed liquid cabin and the normal-temperature liquid cabin, a filter screen scraper is arranged above the filter screen by taking a main shaft as a center, a liquid spraying pipe is arranged below the filter screen, a plurality of spray holes are formed in the liquid spraying pipe, a first rotary water connector is arranged on the main shaft below the filter screen, the first rotary water connector is communicated with the liquid spraying pipe, two ends of a fourth pipeline are respectively connected with a first rotary water connector and a variable-frequency low-temperature-resistant high-pressure water pump, a check valve is arranged on the fourth pipeline, when liquid material is discharged outwards, ice crystals on the upper part of the filter screen are all scraped by the operation of the filter screen scraper, the solution is effectively filtered, the ice crystals are upwards repelled, the surface of the filter screen is cleaned, and the filtering is more effectively and unblocked.
Difference 8: one side of scraping ice mechanism assembly is equipped with ice slurry discharging machine, is equipped with two sprockets in the ice slurry discharging machine, is equipped with external scraper chain on two sprockets, and the outside of ice slurry discharging machine is equipped with frequency conversion gear motor one, and the top of ice slurry discharging machine is equipped with camera and high-pressure water jet, and the one end of ice slurry discharging machine is equipped with the ice slurry discharge gate, and after the ice crystal preparation succeeded, the separation was swift, and output ice crystal is efficient, and the camera comes out the timely feedback of the operation situation of the inside, and is safe convenient.
Difference 9: the three-dimensional scraper support is arranged in the ice scraping mechanism assembly, the end cover is arranged at the upper portion of the ice scraping mechanism assembly, the shaft sleeve is arranged in the middle of the end cover, the upper main shaft bearing and the middle main shaft bearing are arranged in the shaft sleeve, the power receiving pile is arranged on the inner wall of the shaft sleeve, the sealing rings are arranged above the upper main shaft bearing and below the middle main shaft bearing, the lower scraper support bearing is arranged below the upper scraper support bearing and above the central portion of the three-dimensional scraper support, the outer wall of the shaft sleeve penetrates through inner rings of the upper scraper support bearing and the lower scraper support bearing in the three-dimensional scraper support, and the driven chain wheel is arranged above the upper scraper support bearing which is arranged by taking the three-dimensional scraper support as the center.
Difference 10: the second variable-frequency speed reduction motor is arranged at the other side of the end cover, a driving chain wheel is arranged on an output shaft of the second variable-frequency speed reduction motor and is connected with a driven chain wheel through a chain, a bottom plate is arranged at the lower part of the barrel body, a bearing seat is arranged at the central position of the bottom plate, the lower end of the main shaft is connected with the upper end of a bearing on the bottom plate and is connected with the third variable-frequency speed reduction motor through a coupling, and when the motor works, the motors respectively run without mutual interference.
The multifunctional efficient liquid freezing concentration and ice crystal separation equipment has the advantages of high liquid concentration, ice crystal preparation and ice crystal separation speed, high automation degree, workload reduction, improvement of daily working efficiency by more than 3 times, reduction of the number of workers compared with the original 1/5, cost saving and economic benefit improvement.
According to the multifunctional efficient liquid freezing concentration and ice crystal separation equipment, the barrel body and the ice scraper are made of aluminum alloy or stainless steel or other composite metals, the surface is smooth, the strength is high, the corrosion is resistant, and the friction coefficient is small.
The main shaft is a hollow transmission shaft made of stainless steel or other composite metals with high strength and corrosion resistance.
The filter screen is of a filter screen-shaped structure which is made of stainless steel or other composite materials and has smooth and flat round upper surface, high strength and corrosion resistance, and has good filtering effect, wear resistance and high strength.
The invention relates to a filter screen type spiral piece which is a spiral structure with a filtering effect and is made of stainless steel or other composite materials with smooth surface, high strength and corrosion resistance, the filter screen type spiral piece has a good ice slurry collecting effect and is effective in filtering, formed ice crystals are collected upwards and sent to filter water, a liquid spraying pipe arranged on the upper part of the filter screen type spiral piece is a tubular product with any shape and made of stainless steel or other composite materials with high corrosion resistance and strength, liquid spraying holes with inconsistent shapes and specifications are arranged on the liquid spraying pipe, one end of the liquid spraying pipe is connected to a pipeline in a main shaft, the other end of the liquid spraying pipe is sealed, when a low-temperature resistant variable frequency water pump runs, the solution in a normal-temperature liquid cabin or ice slurry mixed liquid cabin can be effectively conveyed to the liquid spraying pipe arranged on the filter screen type spiral piece through a hollow cavity chamber of the main shaft, the solution sprayed from the liquid spraying holes is continuously stirred with the solution in the low-temperature cabin, the solution and the inner surface of the annular evaporator are continuously subjected to cold exchange, ice crystals and ice water mixture attached to the spiral sheet and stirred by centripetal force can be effectively separated from the filter screen type spiral sheet under the action of water flow, the working efficiency of the filter screen type spiral sheet is greatly improved, the ice crystals are well collected, the ice water mixture is gathered, the ice scrapers arranged on two sides of the filter screen type spiral sheet are scrapers made of stainless steel with high strength and corrosion resistance or other composite materials with high corrosion resistance, the ice crystals and the ice water mixture on the inner wall of the annular evaporator can be effectively scraped off during operation, the inner wall of the annular evaporator is normally kept in an optimal state, the refrigeration is fast, the heat exchange coefficient is high, and the ice crystal manufacturing speed is high.
The negative pressure pipette is a tubular product made of stainless steel or other composite materials with high corrosion resistance, is vertically arranged in an ice-liquid separation cabin, the uppermost end of the negative pressure pipette is in a tip sealing shape, a plurality of net-shaped suction ports are arranged on the tube wall according to process requirements, when ice slurry and ice-water mixture gather to the upper part of the solution in a low-density and high-buoyancy state of ice, when a liquid storage barrel is pumped to negative pressure, water in the ice crystals or the ice-water mixture around the net-shaped suction ports can be sucked into the negative pressure pipette, and the net-shaped suction ports can block large-particle ice crystals and the ice-water mixture and only suck the liquid, so that the liquid solution in the ice crystals or the ice-water mixture is effectively reduced, and the separation effect is further improved.
The annular evaporator is an annular metal product which is made of stainless steel or other composite metal materials and is provided with a hollow inner cavity, a plurality of cold-carrying liquid distributing pipes are arranged in a hollow middle cavity, one end of each cold-carrying liquid distributing pipe is connected with a water separator, the other end of each cold-carrying liquid distributing pipe is in a closed state, a plurality of liquid outlet holes are formed in a pipe body of each cold-carrying liquid distributing pipe, a plurality of cold-carrying liquid outlet branch pipes are arranged at one end of the annular evaporator, all the cold-carrying liquid outlet branch pipes are communicated with a cold-carrying liquid collecting tank, a cold-carrying liquid main liquid outlet arranged at the lower part of the cold-carrying liquid collecting tank is used for carrying cold-carrying liquid at normal temperature after cold exchange of the annular evaporator, the cold-carrying liquid flows back to the refrigerating unit again and is refrigerated and circulated to a low-temperature cold-carrying liquid main liquid inlet, the cold-carrying liquid with low-temperature cold energy enters the water separator through the low-carrying liquid main liquid inlet during working, and is respectively dispersed into the cold-carrying liquid distributing pipes by the water separator, the liquid outlet holes on the cold-carrying liquid distributing pipe uniformly distribute cold-carrying liquid in the inner cavity of the annular evaporator, so that low-temperature energy is obtained. Carry cold liquid under radiation effect, go on the inner wall of transferring cold volume to cyclic annular evaporimeter, the solution of the inside of staving and the inner wall of the cyclic annular evaporimeter of low temperature cold volume carry out cold volume exchange, and the solution temperature of the inside of low temperature storehouse is adjusted to the inside temperature of adjustment cyclic annular evaporimeter that can be timely, makes things convenient for the ice crystal, the separation solution.
The ice scraper is arranged at the lower part of the three-dimensional scraper support, the air pump and the fan are arranged in the three-dimensional scraper support, when the three-dimensional scraper support operates, one side of the three-dimensional scraper support rotates, the air jet pipe continuously blows high-pressure air and strong air flow blown out by the air blower to ice slurry to pneumatically separate liquid in the ice slurry from ice crystals, the three-dimensional scraper support scrapes the ice slurry or the ice crystals at the upper part of the barrel body to an inlet of an ice slurry discharging machine under the driving of a second variable frequency speed reducer, the ice crystals are conveyed out by the ice slurry discharging machine, the ice crystals are thoroughly separated from the solution, and the water content is low.
The cameras are arranged on the upper part of the ice slurry discharging machine and the upper part of the three-dimensional scraper support, so that the running working condition of the equipment can be effectively monitored during running, the operation is convenient, and the operation safety of workers is greatly guaranteed.
The barrel body, the annular evaporator, the ice scraping mechanism assembly and the ice slurry discharging machine are all provided with heat insulation plates outside, so that cold air is sealed, the loss of cold energy is small, no leakage exists, energy is saved, consumption is reduced, and cost is saved.
The technical means disclosed in the invention scheme is not limited to the technical means disclosed in the above embodiments, but also includes the technical scheme formed by any combination of the above technical features.
Claims (10)
1. A multifunctional high-efficiency liquid freezing concentration and ice crystal separation device comprises a barrel body, a normal-temperature liquid state cabin, an ice slurry mixed liquid cabin, an ice liquid separation cabin, an ice scraping mechanism, an ice slurry discharging machine and a control system, wherein an ice scraping mechanism assembly is arranged at the upper end of the barrel body, heat insulation plates are arranged outside the barrel body, an annular evaporator, the ice scraping mechanism assembly and the ice slurry discharging machine, a bottom plate is arranged at the lower part of the barrel body, a bearing seat is arranged at the central position of the bottom plate, the lower end of a main shaft is connected with the upper end of a bearing on the bottom plate through a coupling and is connected with a variable-frequency speed reduction motor III, the barrel body and the ice scraping mechanism assembly are of a circular structure, the diameter of the ice scraping mechanism assembly is larger than that of the barrel body, the axes of the ice scraping mechanism assembly, the barrel body and the main shaft are consistent, a three-dimensional scraper support is arranged in the ice scraping mechanism assembly, an end cover is arranged at the upper part of the ice scraping mechanism assembly, and is arranged in the middle of the end cover, the shaft sleeve is internally provided with a main shaft upper bearing and a main shaft middle bearing, the inner wall of the shaft sleeve is provided with an electrified pile, sealing rings are arranged above the main shaft upper bearing and below the main shaft middle bearing, a scraper support upper bearing and a scraper support lower bearing are arranged above the central part of the three-dimensional scraper support, the outer wall of the shaft sleeve penetrates through the inner rings of the scraper support upper bearing and the scraper support lower bearing in the three-dimensional scraper support, the driven sprocket is arranged above the scraper support upper bearing which is arranged by taking the three-dimensional scraper support as the center, an air pump is arranged inside the three-dimensional scraper support, the other side of the air pump is provided with a fan, the bottom of the three-dimensional scraper support is provided with an ice scraper, an air jet pipe is arranged at a position parallel to the ice scraper, the air pump is connected with the fan and the air jet pipe, the lower ends of two sides of the three-dimensional scraper support are provided with high-pressure air jet ports, and two sides of the upper end of the three-dimensional scraper support are provided with limiting pulleys, an end cover is arranged at the upper end of the ice scraping mechanism assembly, a sliding contact conductive rail is arranged at the middle position of the end cover, an access hole is arranged at one side of the upper part of the end cover, a variable-frequency speed reduction motor II is arranged at the other side of the end cover, a driving sprocket is arranged on an output shaft of the variable-frequency speed reduction motor II, the driving sprocket is connected with a driven sprocket through a chain, a monitoring camera is arranged below the end cover, safety guardrails are arranged on the periphery above the end cover, an ice slurry discharging machine is arranged at one side of the ice scraping mechanism assembly, two sprockets are arranged in the ice slurry discharging machine, an external scraper chain is arranged on the two sprockets, a first variable-frequency speed reduction motor is arranged outside the ice slurry discharging machine, a camera and a high-pressure water spray nozzle are arranged above the ice slurry discharging machine, an ice slurry discharging port is arranged at one end of the ice slurry discharging machine, the upper part of the barrel body is an ice-liquid separation cabin, and a high-concentration liquid collection box is arranged on the barrel body outside the ice-liquid separation cabin, the ice slurry separation tank is characterized in that ice slurry water filtering holes are formed in a tank body on the inner side of the high concentrated liquid collection tank, a pipeline V is arranged on the lower portion of the high concentrated liquid collection tank, a mechanical touch pressure switch I, a mechanical touch pressure switch II and a mechanical touch pressure switch III are sequentially arranged on the tank body from top to bottom, a plurality of negative pressure liquid suction pipes are arranged in the ice slurry separation tank and perpendicular to the tank body, a plurality of net suction ports are formed in each negative pressure liquid suction pipe, all the negative pressure liquid suction pipes are connected with a liquid storage barrel on the outer side of the tank body, a negative pressure air suction pipe is arranged at the upper end of the liquid storage barrel, the lower portion of the ice slurry separation tank is a low-temperature tank, an annular evaporator is arranged on the periphery outside the low-temperature tank, a plurality of cold-carrying liquid distributing pipes are arranged in the annular evaporator, all the cold-carrying liquid distributing pipes are communicated with a water separator, a main low-temperature cold-carrying liquid inlet is formed in the water separator, a cold-carrying liquid collection tank is arranged at the other end of the annular evaporator, all the cold-carrying liquid distributing pipes are communicated with a cold-carrying liquid collection tank, a regulating valve is arranged on the cold-carrying liquid outlet branch pipe, a cold-carrying liquid main liquid outlet is arranged at the lower end of the cold-carrying liquid collecting tank, a filter screen type spiral sheet is arranged on a main shaft, the height position of the main shaft is symmetrical to the annular evaporator, a liquid spray pipe is arranged on the surface of the filter screen type rotary sheet, ice scrapers are arranged at the edges of two sides of the filter screen type rotary sheet, a liquid spray pipe is arranged on one side of each ice scraper, a plurality of liquid spray holes are formed in the liquid spray pipe, an ice slurry mixed liquid cabin is arranged at the lower part of the low-temperature cabin, a low-temperature liquid material liquid inlet pipe and a second access hole are arranged on the outer wall of the low-temperature cabin, a rotary water connector II is arranged on the main shaft, the height position of the main shaft corresponds to the ice slurry mixed liquid cabin, the rotary water connector II is communicated with a liquid outlet of the low-temperature resistant variable-frequency water pump through a pipeline I, a pipeline III arranged on a barrel body of the normal-temperature liquid cabin is communicated with a pipeline II arranged at the barrel body of the ice slurry mixed liquid cabin through a three-way valve, the inlet of the low-temperature resistant variable-frequency water pump is connected with the other diameter opening of the three-way valve, the lower part of the ice slurry mixed liquid cabin is a normal-temperature liquid cabin, a filter screen is arranged at the boundary of the ice slurry mixed liquid cabin and the normal-temperature liquid cabin, a filter screen scraper is arranged above the filter screen by taking the main shaft as the center, a liquid spraying pipe is arranged below the filter screen, a plurality of spray holes are arranged on the liquid spraying pipe, a first rotary water connector is arranged on the main shaft below the filter screen and communicated with the liquid spraying pipe, two ends of a fourth pipeline are respectively connected with the first rotary water connector and the variable-frequency low-temperature resistant high-pressure water pump, a one-way valve is arranged on the fourth pipeline, an access hole is arranged on the barrel body on one side of the normal-temperature liquid cabin, a liquid material outlet is arranged on the other side of the barrel body, a bearing is arranged in a bearing seat and is connected with the lower part of the main shaft, the upper part of the ladder stand is connected with an end cover and vertically arranged along the barrel body, and a ladder guardrail is wrapped by the ladder stand, the low-temperature-resistant variable-frequency water pump, the variable-frequency low-temperature-resistant high-pressure water pump, the fan, the air pump, the variable-frequency speed reducing motor I, the variable-frequency speed reducing motor II, the variable-frequency speed reducing motor III, the mechanical touch switch I, the mechanical touch switch II, the mechanical touch switch III and the camera are all connected with the control system.
2. The multifunctional efficient liquid freeze concentration and ice crystal separation equipment as claimed in claim 1, wherein: the barrel body and the ice scraping mechanism assembly are of a circular structure, the diameter of the ice scraping mechanism assembly is larger than that of the barrel body, the axes of the ice scraping mechanism assembly, the barrel body and the main shaft are consistent, the ice scraping mechanism assembly is arranged at the upper end of the barrel body, insulation boards are arranged outside the barrel body, the annular evaporator, the ice scraping mechanism assembly and the ice slurry discharging machine, a bottom plate is arranged at the lower part of the barrel body, a bearing seat is arranged at the central position of the bottom plate, and the lower end of the main shaft is connected with the upper end of a bearing on the bottom plate and is connected with a variable-frequency speed reduction motor III through a coupling.
3. The multifunctional efficient liquid freeze concentration and ice crystal separation equipment as claimed in claim 1, wherein: a three-dimensional scraper support is arranged in the ice scraping mechanism assembly, an end cover is arranged at the upper part of the ice scraping mechanism assembly, a shaft sleeve is arranged in the middle of the end cover, a main shaft upper bearing and a main shaft middle bearing are arranged in the shaft sleeve, a power receiving pile is arranged on the inner wall of the shaft sleeve, sealing rings are arranged above the main shaft upper bearing and below the main shaft middle bearing, a scraper support upper bearing and a scraper support lower bearing are arranged above the central part of the three-dimensional scraper support, the outer wall of the shaft sleeve penetrates through the inner rings of the scraper support upper bearing and the scraper support lower bearing in the three-dimensional scraper support, a driven sprocket is arranged above the scraper support upper bearing which is arranged by taking the three-dimensional scraper support as the center, an air pump is arranged in the three-dimensional scraper support, a fan is arranged at the other side of the air pump, an ice scraping knife is arranged at the bottom of the three-dimensional scraper support, and an air injection pipe is arranged at a position parallel to the ice scraping knife, the air pump and the fan are connected with the air jet pipe, and the lower ends of the two sides of the three-dimensional scraper support are provided with high-pressure air jet ports.
4. The multifunctional efficient liquid freeze concentration and ice crystal separation equipment as claimed in claim 1, wherein: the three-dimensional scraper mechanism assembly is characterized in that limiting pulleys are arranged on two sides of the upper end of the three-dimensional scraper support, an end cover is arranged at the upper end of the ice scraping mechanism assembly, a sliding contact conductor rail is arranged in the middle of the end cover, an access hole is formed in one side of the upper portion of the end cover, a second frequency reduction motor is arranged on the other side of the end cover, a driving sprocket is arranged on an output shaft of the second frequency reduction motor, and the driving sprocket is connected with a driven sprocket through a chain.
5. The multifunctional efficient liquid freeze concentration and ice crystal separation equipment as claimed in claim 1, wherein: one side of the ice scraping mechanism assembly is provided with an ice slurry discharging machine, two chain wheels are arranged in the ice slurry discharging machine, external scraper chain wheels are arranged on the two chain wheels, a first variable frequency speed reduction motor is arranged outside the ice slurry discharging machine, a camera and a high-pressure water spraying opening are arranged above the ice slurry discharging machine, and an ice slurry discharging opening is formed in one end of the ice slurry discharging machine.
6. The multifunctional efficient liquid freeze concentration and ice crystal separation equipment as claimed in claim 1, wherein: the upper portion of staving is the ice-liquid separation cabin, be equipped with high enriched liquid collecting tank on the barrel in the ice-liquid separation cabin outside, be equipped with ice slurry drainage hole on the staving of high enriched liquid collecting tank inboard, the lower part of high enriched liquid collecting tank is equipped with pipeline five, the staving is equipped with mechanical type according to the preface from top to bottom and touches pressure switch one, mechanical type touches pressure switch two, mechanical type touches pressure switch three, ice slurry separation under-deck and stack shell vertical state are equipped with a plurality of negative pressure pipettes, be equipped with a plurality of netted suctions mouths on the every negative pressure pipette, all negative pressure pipettes all are connected with the stock solution section of thick bamboo in the staving outside, the upper end of stock solution bucket is equipped with the negative pressure exhaust tube.
7. The multifunctional efficient liquid freeze concentration and ice crystal separation equipment as claimed in claim 1, wherein: the ice slurry separation cabin is characterized in that the lower portion of the ice slurry separation cabin is a low-temperature cabin, an annular evaporator is arranged on the periphery of the outside of the low-temperature cabin, a plurality of cold liquid carrying liquid separating pipes are arranged in the annular evaporator, all the cold liquid carrying liquid separating pipes are communicated with a water separator, a low-temperature cold liquid carrying main liquid inlet is arranged on the water separator, a cold liquid carrying liquid collecting tank is arranged at the other end of the annular evaporator, all cold liquid carrying liquid outlet branch pipes are communicated with the cold liquid carrying liquid collecting tank, an adjusting valve is arranged on the cold liquid carrying liquid outlet branch pipes, a cold liquid carrying main liquid outlet is arranged at the lower end of the cold liquid carrying liquid collecting tank, a filter screen type spiral sheet is arranged on a main shaft, the height position of the main shaft is symmetrical to that of the annular evaporator, liquid spraying pipes are arranged on the surface of the filter screen type rotary sheet, ice scraping knives are arranged at edges of two sides of the filter screen type rotary sheet, and a plurality of liquid spraying pipes are arranged on the liquid spraying pipes.
8. The multifunctional high-efficiency liquid freeze concentration and ice crystal separation device of claim 1: the lower part of the low-temperature cabin is an ice slurry mixed liquid cabin, a low-temperature liquid material liquid inlet pipe and a second access hole are arranged on the outer wall of the low-temperature cabin, a second rotary water connector is arranged on a main shaft at the height position of the main shaft corresponding to the ice slurry mixed liquid cabin and communicated with a liquid outlet of a low-temperature resistant variable frequency water pump through a first pipeline, a third pipeline arranged on a barrel body of the normal-temperature liquid cabin is communicated with a second pipeline arranged at the barrel body of the ice slurry mixed liquid cabin through a three-way valve, and a liquid inlet of the low-temperature resistant variable frequency water pump is connected with the other diameter opening of the three-way valve.
9. The multifunctional efficient liquid freeze concentration and ice crystal separation equipment as claimed in claim 1, wherein: the lower part of ice slurry mixing tank is normal atmospheric temperature liquid cabin, and the boundary department in ice slurry mixing tank and normal atmospheric temperature liquid cabin is equipped with the filter screen, the top of filter screen is equipped with the filter screen scraper as the center according to the main shaft, and the below of filter screen is equipped with the spray tube, is equipped with a plurality of orifices on the spray tube, and rotatory water joint one sets up on the main shaft of filter screen below, and rotatory water joint one is linked together with the spray tube, and rotatory water joint one and the resistant low temperature high pressure water pump of frequency conversion are connected respectively to the both ends of pipeline four, are equipped with the check valve on the pipeline four.
10. The multifunctional efficient liquid freeze concentration and ice crystal separation equipment as claimed in claim 1, wherein: the device comprises a bearing seat, a bearing, an end cover, a ladder stand guardrail, a low-temperature-resistant variable-frequency water pump, a variable-frequency low-temperature-resistant high-pressure water pump, a fan, an air pump, a variable-frequency speed reduction motor I, a variable-frequency speed reduction motor II, a variable-frequency speed reduction motor III, a mechanical touch switch I, a mechanical touch switch II, a mechanical touch switch III and a camera, wherein the bearing is arranged in the bearing seat and connected with the lower part of a main shaft, the upper part of the ladder stand is connected with the end cover and vertically arranged along the barrel body, the ladder stand guardrail wraps the ladder stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210314870.0A CN114570056A (en) | 2022-03-29 | 2022-03-29 | Multifunctional efficient liquid freeze concentration and ice crystal separation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210314870.0A CN114570056A (en) | 2022-03-29 | 2022-03-29 | Multifunctional efficient liquid freeze concentration and ice crystal separation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114570056A true CN114570056A (en) | 2022-06-03 |
Family
ID=81777146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210314870.0A Pending CN114570056A (en) | 2022-03-29 | 2022-03-29 | Multifunctional efficient liquid freeze concentration and ice crystal separation equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114570056A (en) |
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2022
- 2022-03-29 CN CN202210314870.0A patent/CN114570056A/en active Pending
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