CN112262999A - Ultralow-temperature dehydration drying equipment for fresh products and working method thereof - Google Patents

Ultralow-temperature dehydration drying equipment for fresh products and working method thereof Download PDF

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Publication number
CN112262999A
CN112262999A CN202011161666.7A CN202011161666A CN112262999A CN 112262999 A CN112262999 A CN 112262999A CN 202011161666 A CN202011161666 A CN 202011161666A CN 112262999 A CN112262999 A CN 112262999A
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China
Prior art keywords
chassis
drying chamber
fresh
product
drying
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CN202011161666.7A
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Chinese (zh)
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郭诗林
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Individual
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Priority to CN202011161666.7A priority Critical patent/CN112262999A/en
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
    • A23N12/00—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts
    • A23N12/06—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts for washing or blanching, combined with subsequent drying
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C17/00—Other devices for processing meat or bones
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C25/00—Processing fish ; Curing of fish; Stunning of fish by electric current; Investigating fish by optical means
    • A22C25/02—Washing or descaling fish
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C29/00—Processing shellfish or bivalves, e.g. oysters, lobsters; Devices therefor, e.g. claw locks, claw crushers, grading devices; Processing lines
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/015—Preserving by irradiation or electric treatment without heating effect
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/03—Drying; Subsequent reconstitution
    • A23B4/037—Freeze-drying, i.e. cryodessication, lyophilisation; Apparatus therefor
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/02—Dehydrating; Subsequent reconstitution
    • A23B7/024—Freeze-drying, i.e. cryodessication or lyophilisation
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
    • A23B7/144—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A23B7/148—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The invention discloses an ultralow temperature dehydration drying device of fresh products and a working method thereof, the ultralow temperature dehydration drying device comprises a cleaning device, a feeding device, a conveying device, a drying chamber and a machine body, wherein the feeding device is arranged at the top end of the cleaning device, the drying chamber is arranged at the top end of the machine body, the cleaning device is arranged at the left side of the machine body, the conveying device is arranged between the cleaning device and the drying chamber, a human-computer interaction interface is arranged at the right side of the machine body, and a plurality of heat dissipation holes are arranged on the machine body. The utilization rate of energy is improved, and the waste of resources is reduced.

Description

Ultralow-temperature dehydration drying equipment for fresh products and working method thereof
Technical Field
The invention relates to ultralow-temperature dehydration drying equipment for fresh products and a working method thereof, belonging to the technical field of food processing.
Background
Fresh air-dried dehydrated food such as beef jerky, dried fish and shrimp, dried fruits and vegetables and the like is a favorite flavor food, and is popular with the public particularly as travel food. The air-dried and dehydrated fresh food is concentrated to a greater extent than other foods in any preservation form, and the processing equipment is simple, the production cost is low, and the food is easy to store and transport; by reducing the free water content and thereby increasing the osmotic pressure, the growth of microorganisms in the food product can be controlled.
Vacuum freeze drying is a process for removing moisture contained in materials under the environmental condition of lower than 1 standard atmospheric pressure, any drying process can not leave the heat and mass transfer characteristics of the materials to be dried, the materials and the surrounding environment and the environment, the vacuum drying is the same as the normal pressure drying, the basic principle is the heat and mass transfer theory, the difference is that in the vacuum drying process, the surrounding environment of the materials to be dried is a closed low-pressure space, but the existing vacuum freeze drying equipment has the defects of complex equipment structure, high manufacturing cost, low drying rate, long dehydration time of fresh products, difficult quality guarantee, no killing of harmful bacteria, mildew and rot in the subsequent storage process, and huge loss is caused.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide ultralow-temperature dehydration drying equipment for fresh products and a working method thereof, so as to solve the existing problems.
In order to achieve the purpose, the invention is realized by the following technical scheme: the ultra-low temperature dehydration drying equipment for fresh products structurally comprises a cleaning device, a feeding device, a conveying device, a drying chamber and a machine body, wherein the feeding device is arranged at the top end of the cleaning device, the drying chamber is arranged at the top end of the machine body, the cleaning device is arranged on the left side of the machine body, the conveying device is arranged between the cleaning device and the drying chamber, a human-computer interaction interface is arranged on the right side of the machine body, and a plurality of heat dissipation holes are formed in the machine body.
Further, the cleaning device comprises a cleaning box, a chassis, a support, a first motor and a plurality of hydraulic cylinders, wherein a down-swing type box door is arranged at the front end of the cleaning box, the chassis is arranged in the cleaning box, the support is positioned below the chassis, the hydraulic cylinders are arranged at the bottom of the cleaning box, piston rods of the hydraulic cylinders are connected with the bottom end of the support, a plurality of support columns are arranged on the outer side of the top end of the support, an annular sliding groove is formed in the outer side of the bottom end of the chassis, the top ends of the support columns are arranged in the sliding groove and are rotationally connected with the chassis, the first motor is arranged in the middle of the top end of the support, a gear is arranged on an output shaft of the first motor, an annular toothed plate is arranged on the inner side of the bottom end of the chassis, the gear is meshed with the toothed plate, a plurality of stirring, the piston rod of the hydraulic cylinder is in an extension state when not used at ordinary times.
Furthermore, the chassis is of a concave structure, a groove is formed in the middle of the top end of the chassis, the top surface around the groove is of an inward inclined structure, the feeding device is composed of a feeding bin, a spiral feeding rod and a second motor, the feeding bin is nested in the cleaning box, the bottom end of the feeding bin and the top surface of the chassis are located on the same horizontal line, the feeding bin is of a bottom end opening structure, the top end of the spiral feeding rod is connected with a bearing of the feeding bin, the bottom end of the spiral feeding rod extends out of the bottom end of the feeding bin and extends into the groove, the second motor is arranged at the top end of the feeding bin, and an output shaft of the second motor is connected with the top end of the spiral feeding rod.
Further, conveyor comprises conveying room, conveyer belt, fan, sterilamp, the conveying room both ends respectively with the feeding bin with the drying chamber intercommunication, the conveyer belt is located conveying room inner bottom, the fan with sterilamp locates in proper order conveying room inner top, conveying room right side top is equipped with first cylinder, be equipped with first sealing door on the first cylinder piston rod, first sealing door with conveying room right side top sliding connection, second sealing door left side is equipped with the sensor.
Furthermore, the drying chamber with be equipped with second cylinder and second sealing door on the delivery room intercommunication department, the second cylinder is located in the drying chamber, the second sealing door with second cylinder piston rod is connected, the drying chamber top is equipped with sealed door, and the fresh produce dehydration is after dry, takes out through sealed door.
Further, be equipped with vacuum pump and refrigerating plant in the organism, the vacuum pump output with the drying chamber intercommunication, the drying chamber bottom is equipped with the evaporimeter, refrigerating plant with the evaporimeter passes through the pipe connection, refrigerating plant comprises a plurality of condenser series connection, carries out cascaded refrigeration to the refrigerant through a plurality of condensers, makes the refrigerant get into the threshold value of ultra-low temperature fast to improve ultra-low temperature refrigeration effect.
Furthermore, the outer surface of the bottom of the feeding bin and the top side of the inner wall of the cleaning box are both provided with bristles, and the screw feeding rod propeller is provided with a plurality of water filtering holes.
Also discloses a working method of the ultralow temperature dehydration drying equipment for the fresh products, which comprises the following steps:
step one, pour into the washing incasement with giving birth to bright product from the chamber door mouth, then close the chamber door, the inlet tube water injection, first motor starts to drive the chassis rotatory after that, make wash the incasement and form rotatory rivers and advance and wash the washing to bright product, wash the residue on bright product surface clean, after washing, it is leading-in with sewage from the outlet pipe, then hydraulic cylinder piston rod contracts and drives the chassis and descend, thereby make pay-off storehouse and chassis separation, then give birth to in bright product can slide into the recess at chassis middle part, the second motor starts to drive the rotation of spiral pay-off pole this moment, give birth to bright product and upwards carry, water stain can be followed the drainage hole and dripped in the in-process water stain of carrying.
Step two, carry the bright product of giving birth to the feed bin top and can fall into the conveyer belt, give birth to bright product and carry on this conveyer belt can be weathered the remaining water stain in surface by the fan and then killed by the bacterium above the shining of sterilamp, can be detected by the sensor when giving birth to bright product and carry to the right side, then open first sealing door in proper order, let give birth to bright product and close first sealing door after getting into, reopen the second sealing door, design through two sealing doors can prevent that the air conditioning in the drying chamber from revealing, keep the state in the drying chamber.
Step three, after the fresh product enters the drying chamber, the pressure range in the vacuum box is controlled to be 1000-fold-over 1100Pa through the refrigerating device and the vacuum pump, the temperature is controlled to be below 18 ℃ below zero, and the drying chamber is in a vacuum state
The low temperature state can freeze a large amount of free water in the fresh product into ice crystals, and then the ice crystals are directly sublimated under the vacuum condition, thereby achieving the aim of drying; the freeze-dried product is operated at low temperature, water is in an ice crystal state in the drying process, other components are distributed extremely uniformly, and the original appearance and material structure of the freeze-dried product are hardly changed after the ice is sublimated, so that the stability of the freeze-dried product can be maintained, the taste and the grade of the freeze-dried product are improved, and the original flavor and the nutritional ingredients of the product are effectively maintained.
The invention has the beneficial effects that: according to the invention, the fresh products are automatically cleaned and sterilized before dehydration and drying, so that mildew and rot in the subsequent storage process are avoided, the temperature is gradually reduced in a stepped manner, the temperature reduction efficiency is improved, the ultralow temperature output is finally achieved in a multistage temperature reduction manner, the difficulty of completing the ultralow temperature output in one step is reduced, meanwhile, the utilization rate of energy is improved and the waste of resources is reduced by adopting a multilayer sealing design.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural diagram of an ultra-low temperature dehydration drying device for fresh products and a working method thereof according to the present invention;
FIG. 2 is a sectional view showing the structure of a cleaning device and a feeding device of the ultra-low temperature dehydration drying equipment for fresh products and the working method thereof.
FIG. 3 is a sectional view of the structure of a conveyor of the ultra-low temperature dehydration drying equipment for fresh products and the working method thereof.
Fig. 4 is a sectional view showing the structure of the drying chamber and the body of the ultra-low temperature dehydration drying apparatus for fresh products and the working method thereof according to the present invention.
In the figure: cleaning device-1, feeding device-2, conveying device-3, drying chamber-4, machine body-5, human-computer interaction interface-6, heat dissipation hole-7, cleaning box-101, chassis-102, support-103, first motor-104, hydraulic cylinder-105, box door-106, support column-107, chute-108, gear-109, toothed plate-110, stirring plate-111, feeding bin-201, spiral feeding rod-202, second motor-203, conveying chamber-301, conveying belt-302, fan-303, ultraviolet sterilizing lamp-304, first air cylinder-305, first sealing door-306, sensor-307, second air cylinder-401, second sealing door-402, sealing bin door-403, A vacuum pump-501, a refrigerating device-502, an evaporator-503, bristles-8 and a water filtering hole-9.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1-4, the present invention provides an ultra-low temperature dehydration drying apparatus for fresh products and a working method thereof, comprising: the structure of the device comprises a cleaning device 1, a feeding device 2, a conveying device 3, a drying chamber 4 and a machine body 5, wherein the feeding device 2 is arranged at the top end of the cleaning device 1, the cleaning device 1 comprises a cleaning box 101, a chassis 102, a support 103, a first motor 104 and a plurality of hydraulic cylinders 105, a down-swing type box door 106 is arranged at the front end of the cleaning box 101, the chassis 102 is arranged in the cleaning box 101, the support 103 is positioned below the chassis 102, the hydraulic cylinders 105 are arranged at the bottom of the cleaning box 101, piston rods of the hydraulic cylinders 105 are connected with the bottom end of the support 103, a plurality of support columns 107 are arranged on the outer side of the top end of the support 103, an annular sliding groove 108 is arranged on the outer side of the bottom end of the chassis 102, the top ends of the support columns 107 are arranged in the sliding groove 108 and are rotatably connected with the chassis 102, the first motor 104 is arranged in, an annular toothed plate 110 is arranged at the bottom end of the base plate 102 close to the inner side, the gear 109 is meshed with the toothed plate 110, a plurality of stirring plates 111 are arranged at the top end of the base plate 102, a water inlet pipe and a water outlet pipe are respectively arranged at the left side of the cleaning box 101, the base plate 102 is of a concave structure, a groove is formed in the middle of the top end of the base plate 102, the top surface around the groove is of an inward inclined structure, the feeding device 2 is composed of a feeding bin 201, a spiral feeding rod 202 and a second motor 203, the feeding bin 201 is nested in the cleaning box 101, the bottom end of the feeding bin 201 and the top surface of the base plate 102 are on the same horizontal line, the feeding bin 201 is of a bottom end opening structure, the top end of the spiral feeding rod 202 is connected with a bearing of the feeding bin 201, the bottom end of the spiral feeding rod 202 extends out of the bottom end of the feeding bin 201 and extends into the groove, the second motor 203 is, the outer surface of the bottom of the feeding bin 201 and the top side of the inner wall of the cleaning box 101 are both provided with bristles 8, a plurality of water filtering holes 9 are formed in a screw propeller of the spiral feeding rod 202, the drying chamber 4 is arranged at the top end of the machine body 5, a vacuum pump 501 and a refrigerating device 502 are arranged in the machine body 5, the output end of the vacuum pump 501 is communicated with the drying chamber 4, an evaporator 503 is arranged at the bottom of the drying chamber 4, the refrigerating device 502 is connected with the evaporator 503 through a pipe fitting, the refrigerating device 502 is formed by connecting a plurality of condensers in series, the cleaning device 1 is arranged at the left side of the machine body 5, the conveying device 3 is arranged between the cleaning device 1 and the drying chamber 4, the conveying device 3 is formed by a conveying chamber 301, a conveying belt 302, a fan 303 and an ultraviolet sterilizing lamp 304, and two ends of the conveying chamber 301 are respectively communicated, the conveyer belt 302 is arranged at the bottom in the conveying chamber 301, the fan 303 and the ultraviolet germicidal lamp 304 are sequentially arranged at the top in the conveying chamber 301, the top end of the right side of the conveying chamber 301 is provided with a first air cylinder 305, a piston rod of the first air cylinder 305 is provided with a first sealing door 306, the first sealing door 306 is in sliding connection with the top end of the right side of the conveying chamber 301, the left side of a second sealing door 306 is provided with a sensor 307, the drying chamber 4 is provided with a second air cylinder 401 and a second sealing door 402 at the communicating position of the conveying chamber 301, the second air cylinder 401 is arranged in the drying chamber 4, the second sealing door 402 is connected with the piston rod of the second air cylinder 401, the top end of the drying chamber 4 is provided with a sealing door 403, the right side of the machine body 5 is provided with a human-computer interaction interface 6, and the machine body 5.
Also discloses a working method of the ultralow temperature dehydration drying equipment for the fresh products, which comprises the following steps:
step one, pour into washing case 101 with the fresh product from the chamber door mouth in, then close chamber door 106, the inlet tube water injection, first motor 104 starts to drive chassis 102 rotatory after that, make and form rotatory rivers in the washing case 101 and then wash the washing to the fresh product, wash the residue on fresh product surface, after washing, it is leading-in with sewage from the outlet pipe, then hydraulic cylinder 105 piston rod retracts and drives chassis 102 and descend, thereby make pay-off storehouse 201 and chassis 102 separate, then fresh product can slide in the recess at chassis 102 middle part, second motor 203 starts to drive spiral feed rod 202 rotatory this moment, upwards carry fresh product, water stain can be followed the drainage hole 9 and dropped in the in-process of carrying.
Step two, carry the fresh product of giving feed bin 201 top and can fall into on the conveyer belt 302, fresh product carries on this conveyer belt 302 and can be weathered the remaining water stain in surface by fan 303 then receives the bacterium of shining above with sterilamp 304 and kill, fresh product carries and can be detected by sensor 307 when the right side, then open first sealing door 306 in proper order, let fresh product get into the back and close first sealing door 306, reopen second sealing door 402, design through two sealing door can prevent that the cold air in the drying chamber 4 from revealing, keep the state in the drying chamber 4.
Step three, after the fresh product enters the drying chamber 4, the pressure range in the vacuum box is controlled to be 1000-minus 1100Pa through the refrigerating device 502 and the vacuum pump 501, the temperature is controlled to be minus 18 ℃, because the drying chamber 4 is in a vacuum ultralow temperature state, a large amount of free water in the fresh product is firstly frozen into ice crystals, and then the ice crystals are directly sublimated under the vacuum condition, thereby achieving the purpose of drying; the freeze-dried product is operated at low temperature, water is in an ice crystal state in the drying process, other components are distributed extremely uniformly, and the original appearance and material structure of the freeze-dried product are hardly changed after the ice is sublimated, so that the stability of the freeze-dried product can be maintained, the taste and the grade of the freeze-dried product are improved, and the original flavor and the nutritional ingredients of the product are effectively maintained.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. The utility model provides an ultra-low temperature dehydration drying equipment of giving birth to bright product which characterized in that: the structure of the machine comprises a cleaning device (1), a feeding device (2), a conveying device (3), a drying chamber (4) and a machine body (5), wherein the feeding device (2) is arranged at the top end of the cleaning device (1), the drying chamber (4) is arranged at the top end of the machine body (5), the cleaning device (1) is arranged on the left side of the machine body (5), the conveying device (3) is arranged between the cleaning device (1) and the drying chamber (4), a human-computer interaction interface (6) is arranged on the right side of the machine body (5), and a plurality of heat dissipation holes (7) are formed in the machine body (5).
2. The ultra-low temperature dehydration drying apparatus for fresh produce of claim 1 characterized in that: the cleaning device (1) comprises a cleaning box (101), a chassis (102), a support (103), a first motor (104) and a plurality of hydraulic cylinders (105), wherein a down-swing type box door (106) is arranged at the front end of the cleaning box (101), the chassis (102) is arranged in the cleaning box (101), the support (103) is positioned below the chassis (102), the hydraulic cylinders (105) are arranged at the bottom of the cleaning box (101), piston rods of the hydraulic cylinders (105) are connected with the bottom end of the support (103), a plurality of support columns (107) are arranged on the outer side of the top end of the support (103), an annular sliding groove (108) is arranged on the outer side of the bottom end of the chassis (102), the top ends of the support columns (107) are arranged in the sliding groove (108) and are rotationally connected with the chassis (102), the first motor (104) is arranged in the middle of the top end of the support (103), a gear (109) is arranged on an output shaft of the, the bottom end of the base plate (102) is provided with an annular toothed plate (110) by the inner side, the gear (109) is meshed with the toothed plate (110), the top end of the base plate (102) is provided with a plurality of stirring plates (111), and the left side of the cleaning box (101) is provided with a water inlet pipe and a water outlet pipe respectively.
3. The ultra-low temperature dehydration drying apparatus for fresh produce of claim 2 characterized in that: the cleaning device is characterized in that the chassis (102) is of a concave structure, a groove is formed in the middle of the top end of the chassis (102), the top surface around the groove is of an inward inclined structure, the feeding device (2) is composed of a feeding bin (201), a spiral feeding rod (202) and a second motor (203), the feeding bin (201) is nested in the cleaning box (101), the bottom end of the feeding bin (201) and the top surface of the chassis (102) are in the same horizontal line, the feeding bin (201) is of a bottom end opening structure, the top end of the spiral feeding rod (202) is connected with a bearing of the feeding bin (201), the bottom end of the spiral feeding rod (202) extends out of the bottom end of the feeding bin (201) and extends into the groove, the second motor (203) is arranged at the top end of the feeding bin (201), and an output shaft is connected with the top end of the spiral feeding rod (202).
4. The ultra-low temperature dehydration drying apparatus for fresh produce of claim 3 characterized in that: conveyor (3) comprise conveying room (301), conveyer belt (302), fan (303), sterilamp (304), conveying room (301) both ends respectively with pay-off storehouse (201) with drying chamber (4) intercommunication, conveyer belt (302) are located bottom in conveying room (301), fan (303) with sterilamp (304) are located in proper order top in conveying room (301), conveying room (301) right side top is equipped with first cylinder (305), be equipped with first sealing door (306) on first cylinder (305) the piston rod, first sealing door (306) with conveying room (301) right side top sliding connection, second sealing door (306) left side is equipped with sensor (307).
5. The ultra-low temperature dehydration drying apparatus for fresh produce of claim 4 characterized in that: the drying chamber (4) with be equipped with second cylinder (401) and second sealing door (402) on transport chamber (301) intercommunication department, second cylinder (401) are located in drying chamber (4), second sealing door (402) with second cylinder (401) piston rod is connected, drying chamber (4) top is equipped with sealed door (403).
6. The ultra-low temperature dehydration drying apparatus for fresh produce of claim 1 characterized in that: be equipped with vacuum pump (501) and refrigerating plant (502) in organism (5), vacuum pump (501) output with drying chamber (4) intercommunication, drying chamber (4) bottom is equipped with evaporimeter (503), refrigerating plant (502) with evaporimeter (503) pass through the pipe connections, refrigerating plant (502) comprise a plurality of condenser series connection.
7. The ultra-low temperature dehydration drying apparatus for fresh produce of claim 3 characterized in that: the outer surface of the bottom of the feeding bin (201) and the top side of the inner wall of the cleaning box (101) are both provided with bristles (8), and a plurality of water filtering holes (9) are formed in a screw propeller of the spiral feeding rod (202).
8. The operating method of ultra-low temperature dehydration drying equipment of fresh produce according to claims 1-7 is characterized by that: the method comprises the following steps:
step one, pour into in wasing case (101) fresh product from the chamber door mouth, then close chamber door (106), the inlet tube water injection, first motor (104) start-up drives chassis (102) rotatory after that, make and form rotatory rivers in wasing case (101) and wash the washing to fresh product, wash the residue on fresh product surface, after washing, leading-in sewage from the outlet pipe, then hydraulic cylinder (105) piston rod retraction drive chassis (102) descend, thereby make pay-off storehouse (201) and chassis (102) separation, then fresh product can slide in the recess in chassis (102) middle part, second motor (203) start-up at this moment drives spiral feed rod (202) rotatory, upwards carry fresh product, water stain can drip from drainage hole (9) in the in-process of carrying.
Step two, carry the fresh product to pay-off storehouse (201) top and can fall into on conveyer belt (302), fresh product carries on this conveyer belt (302) and can be weathered the remaining water stain in surface by fan (303) then receives the bacterium of shining above with sterilamp (304) and kill, fresh product carries and can be detected by sensor (307) when the right side, then open first sealing door (306) in proper order, let fresh product close first sealing door (306) after getting into, reopen second sealing door (402), design through two sealing doors can prevent that the air conditioning in drying chamber (4) from revealing, keep the state in drying chamber (4).
Step three, after the fresh product enters the drying chamber (4), the pressure range in the vacuum box is controlled to be 1000-1100Pa through the refrigerating device (502) and the vacuum pump (501), the temperature is controlled to be below 18 ℃ below zero, and as the drying chamber (4) is in a vacuum ultralow temperature state, a large amount of free water in the fresh product is firstly frozen into ice crystals, and then the ice crystals are directly sublimated under the vacuum condition, so that the drying purpose is achieved; the freeze-dried product is operated at low temperature, water is in an ice crystal state in the drying process, other components are distributed extremely uniformly, and the original appearance and material structure of the freeze-dried product are hardly changed after the ice is sublimated, so that the stability of the freeze-dried product can be maintained, the taste and the grade of the freeze-dried product are improved, and the original flavor and the nutritional ingredients of the product are effectively maintained.
CN202011161666.7A 2020-10-27 2020-10-27 Ultralow-temperature dehydration drying equipment for fresh products and working method thereof Withdrawn CN112262999A (en)

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CN202011161666.7A CN112262999A (en) 2020-10-27 2020-10-27 Ultralow-temperature dehydration drying equipment for fresh products and working method thereof

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113970223A (en) * 2021-11-22 2022-01-25 高邮市健龙蜗牛养殖科技有限公司 Snail meat processing quick-freezing device convenient for cleaning frozen inner wall
CN117694395A (en) * 2024-02-05 2024-03-15 洛阳果鲜农网络科技有限公司 Freeze-drying device for fruit and vegetable dehydration preservation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113970223A (en) * 2021-11-22 2022-01-25 高邮市健龙蜗牛养殖科技有限公司 Snail meat processing quick-freezing device convenient for cleaning frozen inner wall
CN117694395A (en) * 2024-02-05 2024-03-15 洛阳果鲜农网络科技有限公司 Freeze-drying device for fruit and vegetable dehydration preservation
CN117694395B (en) * 2024-02-05 2024-04-26 洛阳果鲜农网络科技有限公司 Freeze-drying device for fruit and vegetable dehydration preservation

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