CN208708631U - A kind of Moveable horizontal freeze concentration equipment - Google Patents
A kind of Moveable horizontal freeze concentration equipment Download PDFInfo
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- CN208708631U CN208708631U CN201820019080.9U CN201820019080U CN208708631U CN 208708631 U CN208708631 U CN 208708631U CN 201820019080 U CN201820019080 U CN 201820019080U CN 208708631 U CN208708631 U CN 208708631U
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Abstract
It mainly include that ice crystal forms transportation system, ice-crystal growth separation system and control system three parts the utility model discloses a kind of Moveable horizontal freeze concentration equipment；The ice crystal formation transportation system forms conveying mechanism by one or more ice crystals and constitutes；It includes helix tube type direct evaporator and refrigeration equipment that the ice crystal, which forms conveying mechanism,；The ice-crystal growth separation system includes ice-crystal growth separating tank and the ice crystal separating mechanism that is set in ice-crystal growth separating tank；The control system controls equipment overall operation.The freeze concentration equipment of the utility model can realize the purpose of production and processing in source area, by ice-crystal growth and disjoint set together in one, save the device space, compact-sized, and equipment entirety accumbency is arranged, and center of gravity is low, is moved easily and transports for long-distance；Used helix tube type direct evaporator, ice direction alternately changes out, ensure that in ice-crystal growth separating tank being uniformly distributed for ice crystal in material.
Description
Technical field
The utility model relates to fruit juice freezing concentrating process equipment and freezing and concentrating methods, specifically a kind of removable
Chest freezer concentrator.
Background technique
In inspissated juice manufacture field, it is concentrated by evaporation and heat sterilization is still to apply more technology in industry.Many institute's weeks
Know, the fruit juice of this heating power processing can make fruit juice nutrient be lost significantly, and be also required to expend mass energy guarantee steam confession
It answers.With the economic development and improvement of people's living standards, it to meet the needs of people are to high-quality fruit juice, freezes in recent years
The processing technology of concentration is increasingly by the attention in industry.
Freeze concentration is to pass through cooling under normal pressure and freeze, and the moisture in food is mutually become ice crystal, is then separated
Ice crystal is removed, to improve the method for concentration of the concentration of soluble solid in solution.Freeze concentration process is in low temperature environment
In (generally below 0 DEG C), thermal decomposition, the volatilization of heat-sensitive ingredients and aroma substance in food are avoided, it is suppressed that most of enzyme
Activity, while microorganism proliferation be suppressed, reduce pollution and corruption danger.At the same time, the energy of freeze concentration disappears
Consumption theoretically far below being concentrated by evaporation, has very wide industrial applications prospect.For this purpose, people is researched and developed in industry in recent years
Member actively has developed a variety of freeze concentration equipment.It is set as ZL201310385420.1 discloses a kind of Novel suspension type freeze concentration
It is standby, including scraper type heat exchanger, liquid distributing pan, ice scraping device, ice crystal undertaking tank, recrystallization tank, ice crystal delivery pipe, ice discharging
Tank, material supplement tank, and the lower end of the scraper type heat exchanger is connect with the upper end that ice crystal accepts tank, and ice crystal accepts the lower end of tank
It is connect with recrystallization tank upper end；It recrystallizes and is connected between the top and ice discharging tank of tank by guiding tube, the recrystallization tank
Bottom or side be connected with one end of pipeline I with pump a, the top phase of the other end and scraper type heat exchanger of pipeline I
Company forms material liquid systemic circulatory system.For another example 201520290115.9 a kind of freeze concentration equipment, including tank body are disclosed, it is described
Tank foot is welded with below tank body, the tank body is cylindrical stainless cylinder of steel, and the side wall of tank body is equipped with refrigerant collet, tank body
Bottom be it is arc-shaped, bottom is equipped with heating jacket, radial on tank inner sidewall vertical to be alternately welded with several pieces of thermally conductive width of stainless steel
Plate and thermally conductive narrow boards, cover are equipped with peep hole, feed opening, thermal detector, degassing orifice, decelerating motor, are connected with and stir under decelerating motor
Paddle is mixed, tank bottom center is equipped with fast-assembling blind plate slag notch, and upper part is equipped with strainer, fast-assembling blind plate center of tapping hole aperture is dense
Contracting liquid and ice-melt water out, tank body are externally provided with polyurethane insulation coating.For another example CN201710641415.0 discloses a kind of integral type
Solution freeze concentration equipment and freezing and concentrating method, structure include shaving heat exchanger, the shaft in heat exchanger, circular turn
Axial screw formula scraper, the crystallization-washing chamber for being connected to the heat-insulation and heat-preservation that shaving heat exchanger is open, the wall surface of shaving heat exchanger are
Wall surface is freezed, shaft is connected with driving motor, and the axis direction of the shaft is identical as crystallization-washing chamber axis direction, crystallization-
The top of washing chamber is equipped with the water tank of pre-cooling washing water and discharges the Freeing Pipe of the crystallization-washing room air, water tank and knot
Inlet valve is equipped between crystalline substance-washing chamber, crystallization-washing chamber cavity is equipped with the partition of barrier ice crystal, shaving heat exchanger and crystallization-
Outer circulation circuit is connected between washing chamber；Etc..But we can from the equipment for these freeze concentrations reported at present
It arrives, the common feature of existing freeze concentration equipment is vertical structure, center of gravity is higher, bulky, structure is complicated, cost and dimension
Shield higher cost, weight is big, is unfavorable for long distance transportation, so being only applied in the production of drug, high-grade fruit juice etc. at present.
And for common peasant household, because many-sided reason makes agricultural product especially fruit, it cannot achieve direct marketing
And processing, it causes a large amount of fruit rots at source, causes huge economic loss, it is estimated that global crop loss is more than
The 30% of yield；And for fruit juice production enterprise, it is produced and processed if transporting raw material from the place of production to destination,
This process be easy to cause fruits and vegetables mechanical damage, and transportation cost is higher so that most enterprise thinks at high cost and benefit is low, no
It can become interested and show so in one's facial expression.It, can be directly by equipment conveying although occurring the fruit juice production production line of some packaged types currently on the market
It is directly processed to rapid test paper, but its main feature is that non-concentrated reduction, all uses pasteurization technique, process equipment face substantially
Product is big, and transportation cost is still very high, and obtained fruit juice product weak flavor, nutrient composition content are very low.And current freezing is dense
There are no packaged types for contracting equipment, and structure is complex, bulky, center of gravity is high, not compact enough, weight is larger, fortune
It is defeated difficult, not easily shifted and take up a large area.If it is possible to develop a kind of structure it is relatively simple, it is small in size, light-weight,
Easy to use and operate, cost and maintenance cost is low, packaged type, the freeze concentration equipment being readily transported will be enterprise, orchard worker
The key point of multi-win is realized with consumer.
Utility model content
The utility model aim is to provide a kind of Moveable horizontal freeze concentration equipment, to solve existing cold dense concentrator
Structure is complicated, bulky, center of gravity is high, is not easy the problem transported, cost and maintenance cost are high, and especially solution fruits and vegetables source area adds
Work is difficult, is difficult to realize directly process the problem of obtaining high-quality inspissated juice in fruit source area.
Purpose of the utility model is realized as follows:
A kind of Moveable horizontal freeze concentration equipment mainly includes that ice crystal forms transportation system, ice-crystal growth segregative line
System and control system three parts；
It includes that one or more ice crystals form conveying mechanism that the ice crystal, which forms transportation system,；The ice crystal forms conveyer
Structure includes helix tube type direct evaporator and refrigeration equipment；The helix tube type direct evaporator is in the round tube of accumbency setting
The spiral pushing scraper that is driven by motor and can be switched direction of rotation is installed, the outer wall of the round tube is provided with interior logical refrigeration
The both ends of the coil pipe of agent, the coil pipe connect the refrigeration equipment, and are respectively provided in the tube wall both ends upper side of the round tube
One Matter Transfer inlet/outlet pipe being connected to round tube inner cavity；The ice crystal is formed in transportation system, is formed at least one ice crystal
Feed inlet and outlet is offered on the downside of the tube wall of conveying mechanism；
The ice-crystal growth separation system includes ice-crystal growth separating tank and the ice crystal that is set in ice-crystal growth separating tank
Separating mechanism；The bottom surface of the ice-crystal growth separating tank or side bottom offer formed with one or more of ice crystals it is defeated
The material import and export for sending the Matter Transfer inlet/outlet pipe of mechanism to be connected respectively；The ice crystal separating mechanism includes can be raw in ice crystal
The sieve tray that moves up and down in long separating tank and the sieve tray can be lifted out to the ice crystal sifted out after liquid level strikes off and level pushes away
The ice crystal to ice discharging mouth is sent to remove structure；
The control system can control the ice crystal formed the revolving speed of spiral pushing scraper of transportation system, direction of rotation and
The start and stop of the refrigeration equipment, and the moving up and down for sieve tray of the ice-crystal growth separation system can control to remove with ice crystal
The ice crystal Level Promoting scraper action of structure.
The Moveable horizontal freeze concentration equipment, the control system are automatic control system, the automation
Control system includes PLC, encoder, limit switch, frequency converter and temperature sensor, and the temperature sensor is set to described
Bottom in ice-crystal growth separating tank.
The Moveable horizontal freeze concentration equipment, the sieve tray that can be moved up and down in ice-crystal growth separating tank
It is to be equipped with down-feed screw in ice-crystal growth separating tank it is driven to move up and down, the down-feed screw is driven by first motor.
The Moveable horizontal freeze concentration equipment, the ice crystal remove the top that structure is located at the sieve tray, institute
Stating ice crystal and removing structure is to be equipped with the push for being driven by horizontal lead screw and being moved forward and backward in the ice-crystal growth separating tank to separate
Plate, the push separating plate strikes off the ice crystal of risen from liquid level after sieve tray lifting and level pushes at ice discharging mouth；
The horizontal lead screw is by the second motor driven.
The moving horizontal freeze concentration equipment, the limit switch include for determining that the sieve tray hangs down respectively
Second limit switch of the first limit switch of straight position origin and the push separating plate horizontal position origin；The encoder
For counting motor turnning circle, including the first encoder being located on first motor output shaft and it is located at the second motor output shaft
On second encoder；The PLC is calculated according to the data of the encoder transmission, and then controls institute according to calculated result
State the stroke distances of sieve tray and the push separating plate；The temperature sensor is for determining that temperature of charge changes, the PLC
It obtains material concentration indirectly according to temperature change to change and calculate to obtain ice crystal content, to control the starting ice-crystal growth point
From system.
A kind of freezing and concentrating method based on the equipment, includes the following steps:
(1) feed inlet and outlet through the equipment formed to ice crystal in the helix tube type direct evaporator of conveying mechanism be pumped into
Concentration material, while the refrigeration equipment that the ice crystal forms conveying mechanism is opened, so that material to be concentrated is straight by helix tube type
Temperature reduces after connecing evaporator；It is persistently pumped into material to be concentrated, material enters ice-crystal growth point through helix tube type direct evaporator
Stop being pumped into when material liquid surface in ice-crystal growth separating tank reaches certain altitude from slot；
(2) charging finishes, and starts ice crystal and forms transmission process: controlling the spiral pushing that the ice crystal is formed in conveying mechanism
Scraper rotates forward, and after a period of time, controls the spiral pushing scraper and rotates backward, and then controls again after a period of time described
Spiral pushing scraper rotates forward, and carries out repeatedly；The spiral pushing scraper rotate forward or counter rotation in, system
Cool equipment is kept it turned on；
(3) during step (2) carries out, at regular intervals, start ice crystal separating mechanism, start ice discharging process: first opening
Dynamic first motor, control down-feed screw drives sieve tray to be lifted out liquid level upwards, until the height flushed with ice discharging mouth, closes first
Then motor starts the second motor, the horizontal lead screw that control ice crystal removes structure drives push separating plate to move forward, by sieve pore
The ice crystal sifted out on plate pushes to forward at the ice discharging mouth on ice-crystal growth separating tank, and ice crystal is discharged from ice discharging mouth；After ice discharging,
Spacing place stops after controlled level screw rod drives push separating plate to be moved rearwardly into horizontal direction, closes the second motor, then weighs
New starting first motor, control down-feed screw drive sieve tray to be moved downward to stopping at vertical direction lower limit, are then shut off
First motor；
(4) when material concentration is concentrated into expectation concentration in ice-crystal growth separating tank, by the material after concentration again through passing in and out
It is discharged at material mouth, collects concentration material, pass hull closure.
The utility model eliminates the pump circulation system of refrigerant, changes the previous indirect evaporating heat exchanger of freeze concentration equipment,
And the pumping system that material recycles in heat exchanger is removed, so that the freeze concentration equipment is more compact.
The freeze concentration equipment of the utility model is packaged type, can realize and produce and process in source area, by ice crystal
Growth and separation process collection change the previous structure that works independently together in one, save the device space, compact-sized, and
Equipment entirety accumbency setting, center of gravity is low, is moved easily and transports for long-distance, and is more suitable for source area being produced and processed；It is used
Helix tube type direct evaporator, compare general freeze concentration equipment, realize material alternately flow, out ice direction alternately become
Change, ensure that in ice-crystal growth separating tank being uniformly distributed for ice crystal in material.
The equipment of the utility model not only realizes the purpose that fruit juice is directly processed in fruit source area, and equipment utilization
Rate is high and can farthest retain fruit color, smell and taste and nutriment, effectively increases the thickening efficiency of juice, may be used also
Applied to the concentration of various other thermal sensitivity liquid, such as milk, millet paste, original liquid concentration range can be 2% ~ 10%, dense
Concentration is up to 20% ~ 45% after contracting.
Detailed description of the invention
Fig. 1 is the utility model device overall structure diagram.
Fig. 2 is that the ice crystal of the utility model device forms transportation system and ice-crystal growth separation system opposed configuration is illustrated
Figure.
Fig. 3 is the ice-crystal growth separation system structural schematic diagram of the utility model device.
Fig. 4 is structural schematic diagram in the ice-crystal growth separating tank of the ice-crystal growth separation system of the utility model device.
Fig. 5 is that the ice crystal of the utility model device forms the ice crystal formation conveying mechanism structural schematic diagram of transportation system.
Fig. 6 is the temperature of freeze concentration process materials and the linear relationship chart of concentration.
In Fig. 1-5: 1, ice crystal forms conveying mechanism, 2, ice-crystal growth separation system, 3, automatic control system, 4, refrigeration
Equipment, 5, copper pipe, 6, Matter Transfer inlet/outlet pipe, 7, round tube, 8, spiral pushing scraper, 9, ice-crystal growth separating tank, 10, material into
Outlet, 11, sieve tray, the 12, first transmission chain, 13, ice discharging mouth, 14, down-feed screw, 15, horizontal lead screw, 16, horizontal guide rail,
17, first motor, the 18, second transmission chain, the 19, second motor, 20, push separating plate, 21, wheel, 22, pedestal, 23, third electricity
Machine, 24, feed inlet and outlet.
Specific embodiment
The utility model is further described below in conjunction with the drawings and specific embodiments.
Embodiment 1
The Moveable horizontal freeze concentration equipment of the utility model is the movable equipment of a kind of modular, centre of gravity,
Overall structure is as shown in Figure 1, it integrally mainly forms transportation system, ice-crystal growth separation system 2 and automation control by ice crystal
3 three parts of system are constituted, which is installed on the pedestal 22 with wheel 21.
Ice crystal, which forms transportation system, may be disposed at lower section or the side-lower of ice-crystal growth separation system 2, as shown in Fig. 2, root
According to the design and requirement to equipment scale, the ice crystal formation transportation system of every equipment can be formed defeated by one or more ice crystals
Mechanism 1 is sent to constitute.Ice crystal forms conveying mechanism 1(referring to Fig. 5) it is made of helix tube type direct evaporator and refrigeration equipment 4.Spiral shell
Coil formula direct evaporator is to be provided with spiral pushing scraper 8 in the round tube 7 of accumbency setting, spiral pushing scraper 8 by
The driving rotation of third motor 23 can carry out alternate rotation counterclockwise, clockwise according to system command；On the outer wall of round tube 7, spiral shell
Capstan is wound with the copper pipe 5 of interior logical refrigerant, and the both ends of copper pipe 5 connect refrigeration equipment 4, round tube 7 can also be embedded in by stainless steel sink
Refrigerant flow channel is formed on outer wall；A Matter Transfer inlet/outlet pipe 6, object are respectively provided in the tube wall both ends upper side of round tube 7
Material is cycling in and out pipe 6 and is connected to 7 inner cavity of round tube.Conveying mechanism 1 is formed as every equipment is only provided with an ice crystal, then in the ice
A feed inlet and outlet 24 is opened up in 7 one end lower wall of round tube of crystalline substance formation conveying mechanism 1；As every equipment is provided with multiple ice crystals
Formed conveying mechanism 1, then at least one of them ice crystal formed conveying mechanism 17 one end lower wall of round tube on open up one into
Discharge port 24.
The structure of ice-crystal growth separation system 2 is located away from one as shown in figure 3, it collects ice-crystal growth, by ice-crystal growth point
It is constituted from slot 9 and the ice crystal separating mechanism being set in ice-crystal growth separating tank 9.Ice-crystal growth separating tank 9 is a rectangle
It is corresponding that slot, the bottom surface of slot or side bottom offer the Matter Transfer inlet/outlet pipe 6 that one group forms with each ice crystal on conveying mechanism 1
And the material import and export 10 of connection, it is passed in and out for the liquid material in the round tube 7 of helix tube type direct evaporator；Material import and export 10
There is valve at place, can control mass flow；In addition, being equipped with upper cover on ice-crystal growth separating tank 9.In ice-crystal growth separating tank 9
Ice crystal separating mechanism by the sieve tray 11 that can be moved up and down in ice-crystal growth separating tank 9 and for will sieve tray 11 be lifted after sieve
The ice crystal that ice crystal out strikes off removes structure and constitutes.The sieve tray 11 that can be moved up and down in ice-crystal growth separating tank 9 is in ice
Four corners are provided with four down-feed screws 14 in crystals growth separating tank 9, and ice-crystal growth separation is stretched out in four 14 lower ends of down-feed screw
The bottom plate of slot 9 is driven by the first transmission chain 12 and is driven through first motor 17 and realizes synchronous rotation, and sieve tray 11 is whole in length
Rectangular, the quadrangle of sieve tray 11 is supported by the rectangular support frame being connected on down-feed screw 14, rectangular support frame by two root longs not
What rust steel square tube and five short stainless steel square tube were welded, four angles of the rectangular support frame are fixed on by four stainless steel ox horns
Down-feed screw 14 is on side angle nut；The lifting of sieve tray 11 or decline are driven by down-feed screw 14 to realize, sieve tray 11
Aperture is 3 ~ 5mm.It is equipped with the first limit switch in 14 vertical direction of down-feed screw and is mounted on 17 output shaft of first motor
The first encoder, to realize the fixed point location of 11 height of sieve tray.Ice crystal remove structure be in ice-crystal growth separating tank 9 on
Portion, for removing the ice crystal for rising from material liquid surface in the horizontal direction；It is to be equipped with horizontal silk in the horizontal direction that ice crystal, which removes structure,
Bar 15 and horizontal guide rail 16, as shown in figure 4, push separating plate 20 is set between two horizontal guide rails 16 disposed in parallel, and
It links with push separating plate 20, the second motor 19 provides power and drives horizontal lead screw 15 to rotate through the second transmission chain 18, Jin Ershi
Now push separating plate 20 is moved forward and backward along horizontal guide rail 16；Push 20 lower end of separating plate is pushing knife, for striking off and pushing ice
It is brilliant to being set at the ice discharging mouth 13 opened up on ice-crystal growth separating tank 9.The movement of horizontal lead screw 15 is accurate to calculate by encoder
Stroke, the second limit switch is equipped in 15 horizontal direction of horizontal lead screw and is mounted on 19 output shaft of the second motor second are compiled
Code device, to realize the fixed point location of push separating plate 20.
Ice crystal forms transportation system and the course of work of ice-crystal growth separation system 2 is all controlled by automatic control system 3
System；Automatic control system 3 (is set to ice-crystal growth point by PLC, encoder, limit switch, frequency converter and temperature sensor
From bottom in slot 9) composition, there is automatic control and manually controls two kinds of different operation modes.Automatic control system 3 uses
Modbus Communication Control, the lifting of sieve tray 11 can be freely set and push the back-and-forth motion speed of separating plate 20, position etc..It compiles
Code device (i.e. the first encoder and second encoder) measures stroke, and the bound of device travel can be set, and guarantees walking safety, sieve pore
Plate 11 and push separating plate 20 return origin, are controlled using multistage speed.Frequency converter adjusts screw rod (horizontal lead screw 15 and down-feed screw
14) move speed and sieve tray 11 and push separating plate 20 close to purpose apart from when, by gradually frequency conversion, make sieve pore
Plate 11 and push separating plate 20 slowly stop.Temperature sensor, which collects temperature of charge in ice-crystal growth separating tank 9, to be changed, according to
Following methods are calculated, and the different moments ice crystal quality in ice-crystal growth separating tank is obtained, and start ice crystal separating mechanism.
According to temperature sensor temperature collection, ice crystal quality in ice-crystal growth separating tank is calculated indirectly, illustrates
It is as follows:
During freeze concentration, there are such relationships for material system:
MT=ML+MS, formula is 1.
Formula 1. in, MTIndicate material gross mass, MLIndicate liquid quality, MSIndicate ice crystal quality；
Total dissoluble solid has following relationship in fruit juice:
MTCT =MLCL+MSCS, formula is 2.
Formula 2. in, CTIndicate fruit juice initial concentration；CLIndicate concentration of juices concentration；CSIndicate that soluble solid is dense in ice crystal
Degree.
1. formula is arranged after
ML = MT - MS, formula is 3.
3. formula is substituted into formula 2. obtain:
MTCT =(MT-MS)CL+MSCS=MTCL-MSCL+MSCS=MTCL-MS(CL-CS)
The transposition of above-mentioned equation is arranged:
MS=MT(CL-CT)/(CL-CS), formula is 4.
From formula 4. in can be seen that, if it is known that MT、CT、CL、CSNumerical value, ice crystal mass M can be calculatedS, wherein MTFor fruit juice
Initial gross mass can be calculated or be measured, CTRefractometer can be used and measure initial soluble solid content, CSIt is 1-1.5 °
Brix(experiment measures), it may be set to constant, and CLFor the concentration of concentration of juices, with the continuous progress of freeze concentration, concentration
Constantly increase.If C can be obtainedLValue, ice crystal mass M can be obtained indirectlyS。
In freeze concentration process, there are linear relationship, T=- 16.12*C with concentration for temperatureL+ 0.842, CL= 0.062*T-
0.0522, under data result is as shown in fig. 6, temperature constantly reduces, material concentration is constantly increased.
If measuring the temperature at fruit juice moment, it can be learnt that the initial concentration of fruit juice, so that fruit 4. be calculated according to formula
Ice crystal mass M in the presence of juiceS,
MS=MT(0.062*T-0.0522-CT)/( 0.062*T-0.0522-CS)
For example, fruit juice gross mass MTFor 2000Kg, C at a certain momentLFor 15 ° of Brix, temperature is -1.57 DEG C, when concentration carries out
To next moment, measuring temperature is -1.84 DEG C, according to formula MS=MT(0.062*T-0.0522-CT)/( 0.062*T-
0.0522-CS) it is found that there is the ice crystal of 200Kg in ice-crystal growth separating tank.
When ice crystal quality reaches respective value, the ice crystal separating mechanism in ice crystal separation system can be started, separate ice
It is brilliant.
Based on last time ice crystal separating resulting, initial value at the time of ice crystal is separated as next time, then again according to temperature
The temperature that degree sensor collects calculates the quality of next moment separation ice crystal, continuous loop iteration, until freeze concentration knot
Beam.
Embodiment 2
Using the equipment (in this example design capacity be 2 tons) of the utility model, to 10 tons of fresh watermelon raw materials, by squeezing
The fresh squeezing watermelon juice (concentration is with the densimeter of soluble solid) that 6 tons of initial concentrations are 7 ~ 9 ° of Brix is obtained after juice to be freezed
Concentration, specific implementation process are as follows:
(1) valve at the material import and export 10 of feed inlet and outlet 24 and ice-crystal growth separating tank 9 is opened, is 7 ~ 9 ° by concentration
The fresh watermelon juice of Brix is pumped into from the feed inlet and outlet 24 of helix tube type direct evaporator, and charging maximum stream flow can reach
1200kg/h while charging, opens the matched refrigeration equipment 4 of helix tube type direct evaporator, makes the fresh watermelon juice squeezed out
It is reduced by temperature after evaporator, watermelon juice is made to be in low temperature environment；Reach maximum receiving in ice-crystal growth separating tank 9 to material
Liquid level, i.e. capacity reach 2000Kg, close feed pump, terminate charging.
If equipment is provided with two or more ice crystals and forms conveying mechanism 1,9 slots flow direction is separated from ice-crystal growth to watermelon juice
When other helix tube type direct evaporator, the matched refrigeration refrigeration equipment 4 of other helix tube type direct evaporators is opened.
(2) charging finishes, and controls ice crystal by automatic control system 3 and forms transmission process: opening automatic running pattern, open
Dynamic third motor 23,7 inside spin of third motor driven round tube push scraper 8 and rotate, and spiral pushing scraper to have in round tube 7
The short grained material of ice crystal is discharged into ice-crystal growth separating tank 9 from one end Matter Transfer inlet/outlet pipe 6, while ice-crystal growth separating tank
Material in 9 returns to progress decrease temperature crystalline process in helix tube type direct evaporator from the Matter Transfer inlet/outlet pipe 6 of the other end；Fortune
After a certain period of time, automatic control rotates backward spiral pushing scraper 8 to row, accumulates to avoid ice crystal at Matter Transfer inlet/outlet pipe 6
Form blocking.
(3) during step (2) carries out, the small crystal ice granule in ice-crystal growth separating tank 9 is grown up, every 1 ~ 1.5
Hour, control starting ice discharging process by automatic control system 3: setting corresponding sports time or movement travel, moving distance can
The mobile maximum distance of setting push separating plate 20 is 1500 ~ 1520mm, 420 ~ 440mm of sieve plate move distance；Open automatic running
Mode starts first motor 17, drives down-feed screw 14 that sieve tray 11 is lifted out liquid level, until reaching ice discharging mouth 13, automatically
The first motor 17 for closing 14 operation of down-feed screw stops starting the second motor 19 of 15 operation of horizontal lead screw, band every 30s ~ 1min
Dynamic horizontal lead screw 15 makes push separating plate 20 travel forward, ice crystal is pushed to advance, until push separating plate 20 moves to setting
Stroke stops 2s；Then the second motor 19 drives 15 counter motion of horizontal lead screw, and push separating plate 20 moves backward, until arriving
Stop at Horizontal limiting afterwards；Then the first motor 17 for controlling down-feed screw 14 starts automatically, drives down-feed screw 14 to rotate, makes
Sieve tray 11 moves downward, until arriving vertical direction lower limit, completes an ice discharging process, ice discharging amount is every up to 150 ~ 200Kg
It is secondary.
The ice crystal of every discharge corrresponding quality will supplement the fresh original fruit juice of corresponding mass again.It operates, can obtain repeatedly
The melon fruitade for being 40 ~ 45 ° of Brix to concentration, gained melon fruitade is discharged by feed inlet and outlet 24, in the ice crystal being discharged
Entrainment concentration is 1-1.5 ° of Brix.The equipment and technique of the utility model remain the fresh flavor of watermelon juice to greatest extent,
Nutrition retention rate is 90% or more.
Claims (5)
1. a kind of Moveable horizontal freeze concentration equipment, characterized in that it mainly includes that ice crystal forms transportation system, ice-crystal growth
Separation system and control system three parts；
It includes that one or more ice crystals form conveying mechanism that the ice crystal, which forms transportation system,；The ice crystal forms conveying mechanism packet
Include helix tube type direct evaporator and refrigeration equipment；The helix tube type direct evaporator is installed in the round tube of accumbency setting
There is the spiral pushing scraper that is driven by motor and can be switched direction of rotation, the outer wall of the round tube is provided with interior logical refrigerant
The both ends of coil pipe, the coil pipe connect the refrigeration equipment, and are respectively provided with one in the tube wall both ends upper side of the round tube
The Matter Transfer inlet/outlet pipe being connected to round tube inner cavity；The ice crystal is formed in transportation system, forms the circle of conveying mechanism in ice crystal
Feed inlet and outlet is offered on the downside of tube wall；
The ice-crystal growth separation system includes that ice-crystal growth separating tank is separated with the ice crystal being set in ice-crystal growth separating tank
Mechanism；It is offered in the bottom surface of the ice-crystal growth separating tank or side bottom and forms conveyer with one or more of ice crystals
The material import and export that the Matter Transfer inlet/outlet pipe of structure is connected respectively；The ice crystal separating mechanism includes can be in ice-crystal growth point
From the sieve tray that moves up and down in slot and the sieve tray can be lifted out to the ice crystal sifted out after liquid level strikes off and level pushes to
The ice crystal of ice discharging mouth removes structure；
The control system can control the ice crystal to form the revolving speed of spiral pushing scraper of transportation system, direction of rotation and described
The start and stop of refrigeration equipment, and the moving up and down for sieve tray of the ice-crystal growth separation system can control to remove structure with ice crystal
Ice crystal Level Promoting scraper action.
2. Moveable horizontal freeze concentration equipment according to claim 1, characterized in that the control system is automation
Control system, the automatic control system include PLC, encoder, limit switch, frequency converter and temperature sensor, described
Temperature sensor is set to bottom in the ice-crystal growth separating tank.
3. Moveable horizontal freeze concentration equipment according to claim 1, characterized in that described to be separated in ice-crystal growth
The sieve tray moved up and down in slot is that the down-feed screw being equipped in ice-crystal growth separating tank drives it to move up and down, described vertical
Screw rod is driven by first motor.
4. Moveable horizontal freeze concentration equipment according to claim 1 or 3, characterized in that the ice crystal removes structure
Positioned at the top of the sieve tray, it is to be equipped in the ice-crystal growth separating tank by horizontal lead screw band that the ice crystal, which removes structure,
Dynamic and back-and-forth motion push separating plate, the push separating plate strike off the ice crystal of risen from liquid level after sieve tray lifting
And level pushes at ice discharging mouth；The horizontal lead screw is by the second motor driven.
5. Moveable horizontal freeze concentration equipment according to claim 2, characterized in that the limit switch includes using
In the first limit switch and the push separating plate horizontal position origin for determining sieve tray upright position origin respectively
Second limit switch；For counting motor turnning circle, first including being located on first motor output shaft compiles the encoder
Code device and the second encoder on the second motor output shaft；The PLC is counted according to the data of the encoder transmission
It calculates, and then controls the stroke distances of the sieve tray and the push separating plate according to calculated result；The temperature sensor is used
In determining temperature of charge variation, the PLC obtains material concentration according to temperature change indirectly to be changed and calculates to obtain ice crystal content,
To control the starting ice-crystal growth separation system.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107897602A (en) * | 2018-01-05 | 2018-04-13 | 陈锦权 | A kind of Moveable horizontal freeze concentration equipment and freezing and concentrating method |
| CN107897602B (en) * | 2018-01-05 | 2023-10-03 | 陈锦权 | Movable horizontal type freeze concentration equipment and freeze concentration method |
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