KR101754896B1 - indirect cooling freeze concentrator - Google Patents

indirect cooling freeze concentrator Download PDF

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Publication number
KR101754896B1
KR101754896B1 KR1020150097008A KR20150097008A KR101754896B1 KR 101754896 B1 KR101754896 B1 KR 101754896B1 KR 1020150097008 A KR1020150097008 A KR 1020150097008A KR 20150097008 A KR20150097008 A KR 20150097008A KR 101754896 B1 KR101754896 B1 KR 101754896B1
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South Korea
Prior art keywords
brine
cooling
stirring cylinder
stirring
raw material
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KR1020150097008A
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Korean (ko)
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KR20170006426A (en
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김민용
김종덕
황원용
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전남대학교산학협력단
(주)거성에너지
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Priority to KR1020150097008A priority Critical patent/KR101754896B1/en
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
    • A23L2/02—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation containing fruit or vegetable juices
    • A23L2/08—Concentrating or drying of juices
    • A23L2/12—Concentrating or drying of juices by freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)
  • Accessories For Mixers (AREA)

Abstract

INDUSTRIAL APPLICABILITY The indirect cooling type freeze-thaw concentrating apparatus according to the present invention is characterized in that some water in the raw material liquid is precipitated into ice crystals by using a brine (secondary refrigerant) system having a high thermal conductivity so as to increase the efficiency of refrigerant utilization and shorten the cooling time By separating and concentrating the solution, it is advantageous not only in terms of energy but also because it is operated at a low temperature. Therefore, microbial contamination, pigment destruction, browning reaction, nutrient destruction and volatilization loss can be suppressed and by stirring the raw material liquid to be frozen, It is possible to solve the problem that the frozen water particles which may be generated in the process are bundled together or adhered to the inner wall of the stirring cylinder in a cooled state so that the water can be selectively or entirely removed from the raw liquid without deterioration or loss of the component, There is an effect that a concentrated liquid can be obtained.

Description

Indirect cooling freeze concentrator < RTI ID = 0.0 >

The present invention relates to a freezing and concentrating apparatus, and more particularly, to a method of freezing and concentrating a liquid concentrate by separating a part of water in a raw liquid by ice crystals using a brine (secondary refrigerant) method, Freezing type freezing and condensing apparatus.

Fruits and vegetables contain high concentrations of minerals and vitamins, and their flavor and fresh taste are favored by many consumers. In recent years, fruit or vegetable juice extracts have come into the spotlight as functional foods that prevent adult diseases. However, it is desirable to partially or totally remove water from the juice, since storing the fruit or vegetable juice in a fully packaged state is costly. This concentration process increases the shelf life of the concentrated juice (liquid) by decreasing the juice volume and increasing the relative solids concentration.

In general, the concentration by heating has been widely used until recently. However, the heat concentration has many disadvantages, such as heat discoloration, browning reaction, nutrient destruction, volatilization loss due to distillation, high energy cost, and thus, the composition of the concentrated juice Resulting in degraded quality and efficacy.

Published Patent Application No. 2007-0110149 (Disclosure Date; November 16, 2007)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a method of cooling a raw material liquid by using a brine (secondary coolant) method having a high thermal conductivity, , It is possible not only to be advantageous in terms of energy but also to suppress microbial contamination, pigment destruction, browning reaction, nutrient destruction and volatile loss because it is operated at a low temperature .

In addition, by stirring the raw material liquid to be frozen, it is possible to solve the problem that the frozen water that may occur during the freezing process clumps together or sticks to the inner wall of the stirring cylinder in a cooled state. Therefore, To thereby obtain a concentrate having excellent quality and efficacy, and to provide an indirect cooling type freeze concentration apparatus.

In order to accomplish this object, an indirect cooling type freeze-thaw concentrating apparatus according to an embodiment of the present invention includes a refrigeration cycle-constituting device and a brine cooler to cool a brine, to circulate the brine through a freezer and a brine, And a cooling agitator for separating the concentrated liquid, wherein the refrigerator and the cooling agitator are connected to each other by a brine flow pipe, and the brine circulation pump further includes a brine circulation pump.

Further, the brine may be cooled to freeze the moisture contained in the raw material liquid to freeze the raw material liquid.

On the other hand, the cooling agitation unit includes a cylindrical stirring cylinder, a rotation shaft provided on the center axis of the stirring cylinder, rotatable by a bearing, and a stirring blade fixed to the lower portion of the rotation shaft to stir the raw material liquid, The raw material liquid is filled in the cylinder, and the brine flow tube is connected to one side of the stirring cylinder to inject the brine.

Here, an outlet having a diameter smaller than the diameter of the stirring cylinder is formed in the lower portion of the stirring cylinder, and the lower portion and the outlet of the stirring cylinder are connected to each other by an inclined surface so that water condensed with the concentrated liquid of the raw material liquid is discharged .

The cooling / stirring unit may further include a wing / lowering unit for moving the rotary shaft up / down, and the wing / lowering unit may be a pinion type, a chain type, or a ball screw type. have.

The discharge port may have a stepped portion having a diameter corresponding to the outer diameter of the rotary shaft at a portion where the rotary shaft of the cooling stirring portion is in contact with the outer peripheral surface of the rotary shaft. .

The cooling agitating part includes a cylindrical stirring cylinder, a stirring shaft provided on the central axis of the stirring cylinder, and having a rotatable rotating shaft and a stirring screw formed on the other side from one side of the rotating shaft, and the raw liquid is filled in the stirring cylinder And the brine flow tube is connected to one side of the stirring cylinder to inject the brine. By rotating the rotation shaft, the stirring screw having the spiral structure can stir the raw material liquid.

In this case, the stirring cylinder is provided with a raw-material solution injection port for injecting the raw-material solution into one side thereof, an outlet port through which water condensed with the concentrated liquid of the raw-material solution is discharged, and an opening / closing valve for controlling the opening / And the like.

Particularly, the stirring screw may be a multi-hole plate having a plurality of holes.

In addition, the indirect cooling type freeze concentration apparatus further includes a support plate, the cooling stirring section is disposed on the support plate, one side of the support plate is hinged to the refrigerator, and the other side And the lower part is connected to the cylinder and is raised / lowered to adjust the cooling / stirring part to be inclined.

The indirect cooling type freeze concentration apparatus further includes a concentrated liquid storage tank in which the raw liquid is stored, and the concentrated liquid storage tank may be provided with a screen for removing frozen moisture.

Further, the cooling agitator may further include a driving motor for rotating the rotary shaft, wherein the stirring cylinder is formed in a double jacket structure, and a brine introduced through the brine flow tube is connected to the double jacket structure of the stirring cylinder And is supplied to the inside of the apparatus.

On the other hand, a cooling pipe is provided on the outer circumferential surface of the stirring cylinder, and a brine flowing through the brine flow pipe can flow along the cooling pipe installed on the outer circumferential surface of the stirring cylinder.

The present invention relates to a method for cooling a raw material liquid by precipitating a part of water in raw material liquid into ice crystals by using a brine (secondary coolant) system having a high thermal conductivity so as to increase the efficiency of utilization of the coolant and shorten the cooling time, It is possible to suppress microbial contamination, pigment destruction, browning reaction, nutrient destruction and volatilization loss because it is not only advantageous in terms of energy but also operates at a low temperature. By stirring the raw material liquid to be frozen, It is possible to solve the problem that the granules are clumped together or adhered to the inner wall of the stirring cylinder in a cooled state so that it is possible to remove the water selectively or all from the raw material liquid without deterioration and loss of the ingredient to obtain a concentrate with excellent quality and efficacy .

FIG. 1 is a configuration diagram showing an indirect cooling type freeze concentration apparatus according to an embodiment of the present invention.
2 is a cross-sectional view schematically showing an outlet of a stirring cylinder according to an embodiment of the present invention.
3 is a schematic view schematically showing a cooling pipe according to an embodiment of the present invention.
4 is a state diagram showing a state in which the rotary shaft of the indirect cooling type freeze concentration apparatus according to the embodiment of the present invention is moved up and down.
FIG. 5 is a configuration diagram illustrating an indirect cooling type freeze concentration apparatus according to another embodiment of the present invention.
6 is a state diagram showing an angle-adjusted state of the indirect cooling type freeze-thaw concentrating apparatus shown in FIG.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in order to avoid unnecessarily obscuring the subject matter of the present invention.

2 is a cross-sectional view schematically showing an outlet of an agitating cylinder according to an embodiment of the present invention. FIG. 3 is a cross- 4 is a state diagram showing a state in which a rotary shaft of an indirect cooling type freeze concentration apparatus according to an embodiment of the present invention is lifted and lowered. FIG. 4 is a schematic view illustrating a cooling pipe according to an embodiment of the present invention.

1, the indirect cooling type freeze-thaw concentrating apparatus according to an embodiment of the present invention includes a refrigerator 300 for cooling and circulating a brine and a concentrate C by freezing the water (I) And a cooling agitator 100 for separating the cooling medium.

First, the refrigerator 300 includes a compressor 310 for compressing a working fluid, that is, a refrigerant, into a high-temperature and high-pressure state, a condenser 310 for condensing the refrigerant by cooling water as the refrigerant compressed at high temperature and high pressure is supplied from the compressor 310, An expansion valve 350 for expanding the refrigerant from the condenser 330, a brine cooler 360 for cooling the brine by the refrigerant passing through the expansion valve 350, A brine flow pipe 370 provided so as to be circulated by the object to be cooled, and a brine circulation pump 380 provided on the brine for circulating the brine.

That is, in order to achieve heat exchange, it is necessary to undergo a refrigeration cycle of compression-condensation-expansion-evaporation. In this cycle, the refrigerant is compressed to change to a high-temperature and high-pressure state, and the temperature of the refrigerant is changed by heat exchange with the outside air through the condenser 330 to change into a state of low temperature and high pressure. The condensed refrigerant is further expanded by the expansion valve 350 to a low-temperature and low-pressure state to achieve heat exchange in the brine cooler 360. In the brine cooler 360, the brine is cooled by the expansion of the refrigerant, and the brine is circulated to cool the object to be cooled (the object to be cooled). By repeating this cycle, the refrigeration cycle of the refrigerator 300 proceeds.

In addition, the oil separator 320, the receiver 340, the liquid separator 390, and the like may be provided.

Since the refrigerator 300 having such a configuration can be performed as a component of a conventional indirect cooling type refrigeration cycle, a detailed description thereof will be omitted here.

The cooling stirrer 100 includes a stirring cylinder 110 in which the raw material liquid M is filled, a rotating shaft 120 rotatably provided in the stirring cylinder 110, And a stirring vane 125 for stirring the molten metal M.

The cooling stirrer 100 may be installed at one side of the refrigerator 300 and may be installed at various positions as shown in FIG. 1, .

The cooling stirring unit 100 includes a cylindrical stirring cylinder 110 having an upper opening and a driving motor 140 installed outside the stirring cylinder 110 to generate rotational driving force, The driving motor 140 is connected to the rotation shaft 120 so that a rotational force is transmitted to the rotation shaft 120. The driving motor 140 is connected to the rotation shaft 120, A stirring blade 125 provided below the rotating shaft 120 for stirring the raw material liquid M injected into the stirring cylinder 110 and a stirring blade 125 for stirring the raw material liquid M injected into the stirring cylinder 110, Up / down means 150 for moving up and down.

First, the stirring cylinder 110 is cylindrical as shown in FIG. 1, and an upper portion of the stirring cylinder 110 is opened, and the rotation shaft 120 is installed on a central axis. Here, the stirring cylinder 110 may be provided with an upper portion as described above. However, the stirring cylinder 110 may be provided with an insertion hole (not shown) so that the rotating shaft 120 can be installed through the upper portion of the stirring cylinder 110, (Not shown) may be provided.

A brine flow pipe 370 of the refrigerator 300 is connected to one side of the stirring cylinder 110 to supply the brine.

The stirrer cylinder 110 is connected to the stirrer cylinder 110 so that the brine supplied from the brine flow tube 370 is supplied to the stirrer cylinder 110 so that the raw material liquid M injected into the stirrer cylinder 110 can be frozen The brine flow pipe 370 is formed so that the brine supplied from the refrigerator 300 is circulated along the cooling channel 113 so as to be circulated along the cooling channel 113. [ The cooling channel 113 may be connected to the cooling channel 113.

3, the cooling passage 113 may include a cooling pipe 114 that surrounds the outer circumferential surface of the stirring cylinder 110 to allow the brine to flow, The tube 114 may be connected to the brine flow tube 370 of the refrigerator 300 at one end and the other end, respectively.

It is preferable that the brine is cooled in the freezer 300 so that only the water I contained in the raw material liquid M can be frozen and flowed to the cooling channel 113 or the cooling pipe 114 .

The stirring cylinder 110 of the indirect cooling type freeze concentration apparatus according to an embodiment of the present invention is filled with water (I) frozen by the freezer 300 and a discharge port 115 may be provided at the lower portion.

The outlet 115 has a diameter smaller than the diameter of the cylindrical stirring cylinder 110 and is formed as a downwardly protruding shape. As shown in FIG. 2, the outlet 115 is connected to the lower portion of the stirring cylinder 110 by an inclined surface It is preferable that the frozen water (I) and the concentrated liquid (C) in the stirring cylinder (110) are discharged smoothly through the outlet (115).

Particularly, in the indirect cooling type freeze concentration apparatus according to an embodiment of the present invention, the discharge port 115 and the rotation axis 120 are preferably fitted to each other as shown in FIG. This is because the diameter of the discharge hole 115 and the diameter of the outer diameter of the rotating shaft 120 are mutually fitted so that when the rotating shaft 120 is positioned to be inserted into or contacted with the discharge hole 115, The discharge port 115 is provided with a step 117 on a portion where the rotating shaft 120 is inserted and abuts against the rotating shaft 120 so that the raw material liquid M filled in the discharging opening 115 is not discharged. So that the raw material liquid M can be prevented from being discharged.

The rotation shaft 120 may be provided as an insertion part 122 and a rotating part 121 that are fitted to the discharge port 115 to seal the discharge port 115, Can be inserted into the discharge port 115 to prevent the raw material liquid M from being discharged and can be rotated to stir the raw material liquid M. [

When the raw material liquid M is to be discharged, the raw material liquid M may be discharged by lifting the rotating shaft 120 through the lifting / lowering means 150 as shown in FIG.

The rotating shaft 120 may be installed in a direction perpendicular to the central axis of the stirring cylinder 110 as described above and the bearing 135 may be fixed to the inside of the rotating shaft 120 so that the rotating shaft 120 can rotate smoothly. May be inserted into the block 130 and installed in the stirring cylinder 110.

In addition, the bearing block 130 may be fixed to the up / down means 150 on both sides as shown in FIG.

 The rotation shaft 120 fixed to the bearing block 130 can be rotated by driving the drive motor 140 and can be moved up and down by the up / .

The up / down means 150 may be provided in any one of a pinion type, a chain type, and a ball screw type. A method of raising and lowering the apparatus by applying the above-described methods can be performed by a conventional method, so that a detailed description thereof will be omitted here.

1, the stirring shaft 120 is provided with at least one stirring vane 125 for stirring the raw material liquid M, and the stirring vane 125 is connected to the stirring cylinder 110 The rotating shaft 120 is in contact with the step 117 of the stirring cylinder 110 so as to seal the discharge port 115 of the stirring cylinder 110, So that the raw material liquid M injected into the stirring cylinder 110 can be stirred.

A motor controller 145 may be provided to control the rotational speed of the driving motor 140 to control the rotational speed of the rotating shaft 120.

As shown in FIG. 4, the indirect cooling type freeze-thaw concentrating apparatus according to an embodiment of the present invention is configured such that only the water (I) contained in the raw material liquid M which is filled and stirred in the cooling and stirring unit 100 is frozen And may be provided with a concentrated liquid storage tank 400 having a sieve 410 for storing only the concentrated liquid C by separating the frozen water I from the raw liquid M, have. In addition, a centrifugal separator (not shown) is provided to separate the frozen moisture (I) and the concentrated liquid (C).

FIG. 5 is a view illustrating an indirect cooling type freeze concentration apparatus according to another embodiment of the present invention, and FIG. 6 is a state view showing an angle-adjusted state of the indirect freeze type freeze concentration apparatus shown in FIG.

Referring to FIG. 5, the indirect cooling type freezing and condensing apparatus according to another embodiment of the present invention includes a refrigerator 300 for cooling and circulating a brine, a freezing device 300 for freezing water (I) (Not shown).

First, the refrigerator 300 includes a compressor 310 for compressing a working fluid, that is, a refrigerant, into a high-temperature and high-pressure state, a condenser 310 for condensing the refrigerant by cooling water as the refrigerant compressed at high temperature and high pressure is supplied from the compressor 310, An expansion valve 350 for expanding the refrigerant from the condenser 330, a brine cooler 360 for cooling the brine by the refrigerant passing through the expansion valve 350, A brine flow pipe 370 provided so as to be circulated by the object to be cooled, and a brine circulation pump 380 provided on the brine for circulating the brine.

That is, in order to achieve heat exchange, it is necessary to undergo a refrigeration cycle of compression-condensation-expansion-evaporation. In this cycle, the refrigerant is compressed to change to a high-temperature and high-pressure state, and the temperature of the refrigerant is changed by heat exchange with the outside air through the condenser 330 to change into a state of low temperature and high pressure. The condensed refrigerant is further expanded by the expansion valve 350 to a low-temperature and low-pressure state to achieve heat exchange in the brine cooler 360. In the brine cooler 360, the brine is cooled by the expansion of the refrigerant, and the brine is circulated to cool the object to be cooled (the object to be cooled). By repeating this cycle, the refrigeration cycle of the refrigerator 300 proceeds.

In addition, the oil separator 320, the receiver 340, the liquid separator 390, and the like may be provided.

Since the refrigerator 300 having such a configuration can be performed as a component of a conventional indirect cooling type refrigeration cycle, a detailed description thereof will be omitted here.

The cooling agitator 200 includes a stirring cylinder 210 in which the raw material liquid M is filled, a rotating shaft 220 rotatably provided in the stirring cylinder 210, And an agitating screw 225 for agitating the developer M.

5, the cooling stirrer 200 is installed at an upper portion of the refrigerator 300. However, the present invention is not limited thereto and may be installed at various positions as needed.

The cooling stirrer 200 includes a stirring cylinder 210 injected with a raw material liquid M and horizontally installed on the upper portion of the freezer 300 and a cooling fan 300 installed outside the stirring cylinder 210, A rotation shaft 220 installed on the central axis of the stirring cylinder 210 and rotated in accordance with rotation of the driving motor 240, And an agitating screw 225 for agitating the raw material liquid M injected into the agitating cylinder 210.

5, the stirring cylinder 210 has a cylindrical shape and includes a raw material liquid inlet 216 through which raw material liquid M is injected into one side and a discharge port 216 through which raw material liquid M is discharged to the other side 215 are formed, and the rotation axis 220 is installed in the longitudinal direction on the central axis. It is preferable that the discharge port 215 is provided with an opening and closing valve 217 for controlling opening and closing of the discharge port 215. The opening and closing valve 217 is provided with an electromagnetic solenoid valve ≪ / RTI >

The brine flow tube 370 of the refrigerator 300 is connected to one side of the stirring cylinder 210 to supply the brine.

The stirrer cylinder 210 is connected to the agitating cylinder 210 so that the brine supplied from the brine flow tube 370 can freeze the raw material liquid M injected into the stirring cylinder 210, The brine flow pipe 370 is formed in such a manner that a brine supplied from the freezer 300 is circulated along the cooling channel 213. The brine flow pipe 370 is provided in a double jacket structure to be heat- And the cooling channel 213 may be connected to the cooling channel 213.

As shown in FIG. 3, the cooling channel 213 is a cooling channel for cooling the brine while surrounding the outer circumferential surface of the stirring cylinder 210, And the cooling pipe 114 may be connected to the brine flow pipe 370 of the freezer 300 at one end and the other end, respectively.

It is preferable that the brine is cooled in the freezer 300 so that only the moisture I contained in the raw material liquid M can be frozen and flowed to the cooling channel 213 or the cooling pipe 114 .

The stirring screw 225 is formed radially along the longitudinal direction of the rotating shaft 220 of the stirring cylinder 210 and formed into a spiral curved shape centering on the rotating shaft 220, (Hereinafter, referred to as front) in which the discharge port 215 is provided (hereinafter, referred to as front).

At least one hole 227 is formed in the spiral surface of the stirring screw 225 to provide a space in which the concentrated liquid C can flow in the raw liquid M, It is possible to prevent the forward movement from being hindered.

The cooling stirrer 200 configured as described above moves the raw material liquid M filled in the stirring cylinder 210 forward through the stirring screw 225 rotating in the forward direction toward the discharge port 215 And at the same time, the water (I) can be cooled, and the concentrated liquid (C) can be continuously separated from the raw liquid (M).

A motor controller 245 may be provided to control the rotational speed of the driving motor 240 to control the rotational speed of the rotating shaft 220.

In addition, the indirect cooling type freeze concentration apparatus according to another embodiment of the present invention may further include a support plate 260 capable of adjusting the angle of the cooling stirring unit 200.

5 and 6, it is preferable that the support play is provided on the upper part of the refrigerator 300, and one side thereof is hinged to the refrigerator 300. That is, 260 can be lifted up and the cooling agitator 200 is positioned on the upper portion of the support plate 260 so that the angle of the cooling agitator 200 can be adjusted.

In addition, the support plate 260 may be provided with a cylinder 250 at a lower portion of the hinge-coupled opposite side. Here, the cylinder 250 may be either a hydraulic cylinder or a pneumatic cylinder. The cylinder 250 may be lifted up and down to support the cooling stirring unit 200 The angle can be adjusted.

Further, a compressor (not shown) or a hydraulic unit (not shown) for driving the cylinder 250 to move up and down may be additionally provided.

Meanwhile, the brine flow pipe 370 may be provided as a flexible hose so that the cylinder 250 can be easily lifted or lowered.

In addition, in the indirect cooling type freeze concentration apparatus according to another embodiment of the present invention, only the water (I) contained in the raw liquid M which is filled and stirred in the cooling agitation unit 200 can be frozen and discharged to the outside A concentrated liquid storage tank 400 having a sieve 410 may be provided to separate the frozen water I from the raw liquid M and store only the concentrated liquid C. In addition, a centrifugal separator (not shown) is provided to separate the frozen moisture (I) and the concentrated liquid (C).

Therefore, according to the present invention configured as described above, some water in the raw material liquid is precipitated into ice crystals by using a brine having a high thermal conductivity so as to increase the efficiency of utilization of the refrigerant and to shorten the cooling time, , It is not only advantageous in terms of energy but also can be operated at a low temperature, so that microbial contamination, pigment destruction, browning reaction, nutrient destruction and volatilization loss can be suppressed.

Further, by stirring the raw material liquid to be frozen, it is possible to solve the problem that the frozen water particles which may occur in the freezing process are not aggregated or cooled in the inner wall of the stirring cylinder, so that the raw material liquid The water may be selectively or completely removed to obtain concentrated juice having excellent quality and efficacy.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments. It should also be understood that many modifications and variations are possible without departing from the scope of the invention, as would be understood by one of ordinary skill in the art.

100, 200; Cooling stir parts 110 and 210; Stirring cylinder
113, 213; A cooling passage 114; Cooling pipe
115, 215; Outlet 117; Step
120, 220; A rotating shaft 121; reel
122; An insertion portion 125; Stirring wing
130; Bearing block 135; bearing
140, 240; A driving motor 143; Drive belt
145, 245; Motor controller 150; The w /
216; A raw solution inlet 217; Opening / closing valve
225; Stirring screw 227; hall
250; Cylinder 260; Support plate
300; A freezer 310; compressor
320; Oil separator 330; Condenser
340; Receiver 350; Expansion valve
360; Brine cooler 370; Brine flow tube
380; Brine circulation pump 390; Liquid separator
400; A concentrated liquid storage tank 410; Filter

Claims (15)

A refrigerator (300) provided with a refrigeration cycle device and a brine cooler (360) to cool the brine and circulate the brine; And
And a cooling agitator (100) for separating the concentrated liquid by freezing water in the raw liquid through a brine,
The refrigerator 300 and the cooling stirrer 100 are connected to each other by a brine flow pipe 370 to circulate the brine,
The cooling stirrer 100 is provided with a cylindrical stirring cylinder 110; A rotating shaft 120 installed on a center axis of the stirring cylinder 110 and rotatable by a bearing 135; And a stirring vane (125) fixed to a lower portion of the rotating shaft (120) to stir the raw material liquid,
The raw liquid is filled in the stirring cylinder 110. The brine flow tube 370 is connected to one side of the stirring cylinder 110 to inject brine,
A discharge port 115 having a diameter smaller than that of the stirring cylinder 110 is formed in the lower portion of the stirring cylinder 110,
The lower part of the stirring cylinder 110 and the discharge port 115 are connected by an inclined surface,
A step 117 having a diameter corresponding to the outer diameter of the rotation shaft 120 is formed in the discharge port 115 at a portion where the rotation shaft 120 of the cooling agitation unit 100 is in contact,
Wherein when the rotating shaft (120) is positioned so as to be in contact with the discharge port (115), discharge of the raw material liquid is prevented. The method according to claim 1,
Wherein the brine flow pipe (370) further comprises a brine circulation pump (380) for circulating the brine. The method according to claim 1,
Wherein the brine is cooled so as to freeze moisture contained in the raw material liquid to freeze the raw material liquid. delete delete The method according to claim 1,
The cooling stirrer 100 further includes a lifting / lowering means 150 for lifting or lowering the rotary shaft 120,
Wherein the lifting / lowering means (150) is one of a pinion type, a chain type, and a ball screw type. delete delete delete delete delete The method according to claim 1,
The indirect cooling type freeze concentration apparatus further includes a concentrated liquid storage tank (400) for storing the raw liquid,
Wherein the concentrated liquid storage tank (400) is provided with a filtering net (410) for removing frozen water. The method according to claim 1,
Wherein the cooling stirring unit (100) further includes a driving motor (140) for rotating the rotating shaft (120). The method according to claim 1,
Wherein the stirring cylinder 110 is formed in a double jacket structure and the brine flowing through the brine flow pipe 370 is supplied into the double jacket structure of the stirring cylinder 110. [ Device. The method according to claim 1,
A cooling pipe 114 is installed on the outer circumferential surface of the stirring cylinder 110 so that a brine flowing through the brine flow pipe 370 flows along the cooling pipe 114 installed on the outer peripheral surface of the stirring cylinder 110 The indirect cooling type freeze concentration device.
KR1020150097008A 2015-07-08 2015-07-08 indirect cooling freeze concentrator KR101754896B1 (en)

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JP2003265150A (en) * 2002-03-19 2003-09-24 Kagome Co Ltd Method of freeze concentration for vegetable/fruit juice and freeze concentrated product and equipment for the same
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