CN114633952A - Micro-freezing fresh-keeping device and control method thereof - Google Patents
Micro-freezing fresh-keeping device and control method thereof Download PDFInfo
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- CN114633952A CN114633952A CN202210265287.5A CN202210265287A CN114633952A CN 114633952 A CN114633952 A CN 114633952A CN 202210265287 A CN202210265287 A CN 202210265287A CN 114633952 A CN114633952 A CN 114633952A
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- 238000007710 freezing Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000003860 storage Methods 0.000 claims abstract description 67
- 238000004321 preservation Methods 0.000 claims abstract description 10
- 230000008014 freezing Effects 0.000 claims description 14
- 230000036961 partial effect Effects 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 8
- 230000000670 limiting effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 5
- 230000003028 elevating effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/24—Gearing between driving motor and belt- or chain-engaging elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/52—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Warehouses Or Storage Devices (AREA)
Abstract
The invention relates to the technical field of micro-freezing and fresh-keeping, in particular to a micro-freezing and fresh-keeping device and a control method thereof.A cold air cavity is arranged in a rotating rod, and the top end of the cold air cavity is connected with an air cooler; a plurality of groups of vent pipes are arranged on the rotating rod from top to bottom in the circumferential direction, and the outer sides of the vent pipes are communicated with a storage box; the storage box corresponds to a first conveying device, the bottom of the first conveying device is provided with a lifting device, and one side of the first conveying device is correspondingly provided with a second conveying device; a third conveying device is arranged inside the storage box, a box door is arranged at the opening of the storage box, the top end of the box door is connected with a driving rod, the driving rod is rotatably arranged at the top of the storage box, and the driving rod is driven by a first motor to rotate; a horizontal moving device is arranged below the lifting device, and the other side of the first conveying device can be extended above a third conveying device in the storage box by the horizontal movement of the horizontal moving device. The invention can automatically and stably convey the products into the independent storage boxes for micro-freezing preservation, and the temperature is easier to maintain.
Description
Technical Field
The invention relates to the technical field of micro-freezing preservation, in particular to a micro-freezing preservation device and a control method thereof.
Background
The micro-freezing preservation refers to the slightly freezing storage at the temperature between the freezing point of an organism and 1-2 ℃ below the freezing point, and the preservation effect for a long time is achieved by inhibiting the propagation of microorganisms and the activity of enzymes at low temperature.
In use, the existing micro-freezing preservation technology is often maintained to a preset temperature in a large space to preserve the freshness of products, such as a refrigerator. However, the space is too large, the temperature is difficult to maintain, and all products are influenced by each time of entering and exiting, so that the micro-freezing fresh-keeping effect of the products is poor. And the product is often required to be finished manually in a large space, which is very inconvenient.
Disclosure of Invention
The invention provides a micro-freezing fresh-keeping device and a control method thereof, which can overcome certain defects or some defects in the prior art.
The micro-freezing fresh-keeping device comprises a rotating rod, wherein a cold air cavity is arranged in the rotating rod, the top end of the cold air cavity is opened, and the top end of the cold air cavity is connected with an air cooler; a plurality of groups of vent pipes are arranged on the rotating rod from top to bottom in the circumferential direction, and the outer side of any vent pipe is communicated with a storage box; all the storage boxes correspond to a first conveying device, the bottom of the first conveying device is provided with a lifting device, and one side of the first conveying device is correspondingly provided with a second conveying device;
a third conveying device is arranged inside the storage box, the outer side of the storage box is provided with an opening, a box door is arranged at the opening, the top end of the box door is connected with a driving rod, the driving rod is rotatably arranged at the top of the storage box, and the driving rod is driven by a first motor to rotate;
a horizontal moving device is arranged below the lifting device, and the other side of the first conveying device can be extended above a third conveying device in the storage box by the horizontal movement of the horizontal moving device.
Preferably, the bottom end of the rotating rod is rotatably installed on a base, a second motor is arranged in the base, and the second motor drives the rotating rod to rotate.
Preferably, the lifting device comprises two vertical first linear actuators, a support rod capable of moving up and down is connected between the two first linear actuators, and the first conveying device is installed at the top of the support rod.
Preferably, the horizontal moving device support plate comprises two horizontal second linear actuators, a horizontally movable support plate is connected to the tops of the two horizontal second linear actuators, and the tops of the support plates are connected with the two first linear actuators.
Preferably, the first conveying device comprises a device body, a mounting groove is formed in the device body, a first rolling shaft is mounted in the mounting groove, an extension plate is arranged at one end of the device body, a second rolling shaft is mounted at the end of the extension plate, and a conveying belt is sleeved between the first rolling shaft and the second rolling shaft; the extension plate and the second roller can extend into the storage box; the first roller is connected with a third motor.
Preferably, the second roller has a smaller diameter than the first roller.
Preferably, the first linear actuator comprises a body, a cavity is arranged in the body, a screw rod is arranged in the cavity, a screw rod nut is sleeved on the screw rod, and one end of the screw rod nut is connected with a support rod; one end of the device body is provided with a limiting hole which can clamp the supporting rod to enable the supporting rod to move up and down; the screw rod is connected with a fourth motor.
Preferably, the vent pipe is provided with a control valve.
Preferably, all the storage boxes correspond to one lifting output device, and the lifting output device and the first conveying device are identical in structure.
The invention also provides a control method of the micro-freezing fresh-keeping device, which adopts the micro-freezing fresh-keeping device and comprises the following steps:
opening the air cooler, and continuously filling cold air into the cold air cavity to fill the corresponding storage boxes with the cold air;
rotating the rotating rod to enable the corresponding storage box to rotate to a preset position;
thirdly, adjusting the first conveying device through the lifting device and the horizontal moving device, enabling the first conveying device to horizontally correspond to the second conveying device, conveying the product from the second conveying device to the first conveying device, and stopping conveying by the first conveying device;
fourthly, the first motor drives the box door to open;
fifthly, adjusting the first conveying device through the lifting device to enable the first conveying device to be aligned with the corresponding storage box;
sixthly, the first conveying device extends above the third conveying device in the storage box through the horizontal moving device; after the first conveying device is started, conveying the products to a third conveying device, and after the third conveying device is started, conveying the products to the rear;
and seventhly, driving the box door to close by the first motor, so that the product is conveyed into the corresponding storage box for slight freezing and fresh keeping.
The invention can automatically and stably convey products into the independent storage boxes for slight freezing preservation, has small mutual influence, is easier to maintain temperature, has good effect, is more convenient to take and place, saves time and labor and has high automation degree.
Drawings
FIG. 1 is a schematic top view of a fresh keeping apparatus according to embodiment 1;
FIG. 2 is a schematic front view of a fresh-keeping apparatus according to embodiment 1;
FIG. 3 is a schematic view showing the structure of a storage box in embodiment 1;
fig. 4 is a schematic structural view of a first linear actuator in embodiment 1;
fig. 5 is a schematic structural view of the first conveying device in embodiment 1.
Detailed Description
For a further understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention and not limiting.
Example 1
As shown in fig. 1-5, the embodiment provides a micro-freezing fresh-keeping device, which includes a rotating rod 110, a cold air chamber 111 is arranged in the rotating rod 110, the top end of the cold air chamber 111 is open, and the top end is connected with an air cooler 112; a plurality of groups of breather pipes 120 are arranged on the rotating rod 110 from top to bottom in the circumferential direction, and the outer side of any breather pipe 120 is communicated with a storage box 130; all the storage boxes 130 correspond to a first conveying device 140, the bottom of the first conveying device 140 is provided with a lifting device 150, and one side of the first conveying device 140 is correspondingly provided with a second conveying device 160;
the third conveying device 131 is arranged inside the storage box 130, the opening is formed in the outer side of the storage box 130, the box door 132 is arranged at the opening, the top end of the box door 132 is connected with a driving rod 133, the driving rod 133 is rotatably arranged at the top of the storage box 130, and the driving rod 133 is driven to rotate by a first motor 134;
a horizontal moving device 170 is arranged below the lifting device 150, and the other side of the first conveying device 140 can be extended above the third conveying device 131 in the storage box 130 by the horizontal movement of the horizontal moving device 170.
The air cooler 112 continuously supplies cold air to the cold air chamber 111, and then the cold air flows into the plurality of storage boxes 130 arranged in order through the air duct 120 to keep the temperature in the storage boxes 130 at a temperature required for micro-freezing and refreshing, so that the products are stored in separate small spaces, the influence between the products is small, and the temperature maintenance is more favorable, for example, when the products in one storage box 130 need to be taken and placed, the influence on the temperature of the products in the other storage boxes 130 is small.
The rotating rod 111 can drive the storage box 130 to rotate, so that the storage box 130 can rotate to a proper position to be correspondingly matched with the first conveying device 140, and the first conveying device 140 can convey products into the storage box 130. The lifting device 150 at the bottom of the first conveyor 140 can drive the first conveyor 140 to lift, so that the first conveyor 140 can be adjusted up and down to correspond to the storage boxes 130 with different heights. The second conveying device 160 is a conveying device in a normal production line, and after the second conveying device 160 conveys the products to the first conveying device 140, the first conveying device 140 adjusts the height to convey the products to the corresponding storage boxes 130.
The third conveyor 131 in the storage box 130 can convey the products to the rear end so that the products are not stacked and the products are conveniently discharged from the storage box 130.
In this embodiment, the first conveyor 140, the second conveyor 160, and the third conveyor 131 are all conveyed by a motor-driven transmission belt.
The horizontal moving device 170 below the lifting device 150 can horizontally move the first conveyor 140 (closer to or farther from the storage box 130), so that the first conveyor 140 can be as close to the second conveyor 160 as possible, and the gap between the first conveyor 140 and the second conveyor 160 is small, so that the product is not easily caught by the gap; in addition, the corresponding end of the first conveying device 140 can be positioned below the corresponding end of the second conveying device 160 through the cooperation between the lifting device 150 and the horizontal moving device 170, so that the products on the second conveying device 160 fall onto the first conveying device 140, and the products cannot be clamped without gaps.
The horizontal movement of the horizontal moving device 170 can make the other side of the first conveyor 140 extend above the third conveyor 131 in the storage box 130, so that the product on the first conveyor 140 directly falls onto the third conveyor 131, and the product is more smoothly conveyed and cannot be jammed.
The bottom end of the rotating rod 110 is rotatably mounted on a base 200, a second motor 210 is arranged in the base 200, and the second motor 210 drives the rotating rod 110 to rotate.
The second motor 210 drives the rotating rod 110 to rotate, and the rotating rod 110 can rotate the corresponding storage box 130 to a predetermined position to be ready to correspond to the first conveying device 140.
The lifting device 150 includes two vertical first linear actuators 151, a support rod 152 capable of moving up and down is connected between the two first linear actuators 151, and the first conveying device 140 is installed on the top of the support rod 152.
The first linear actuator 151 drives the support rod 152 to move up and down, so as to adjust the height of the first conveying device 140.
The horizontal moving device support plate 170 includes two horizontal second linear actuators 171, a horizontally movable support plate 172 is coupled to the top of the two horizontal second linear actuators 171, and the top of the support plate 172 is coupled to the two first linear actuators 151.
The second linear actuator 171 drives the supporting plate 172 to move horizontally, so as to adjust the horizontal position of the first conveying device 140.
The first conveying device 140 comprises a device body 141, a mounting groove 142 is arranged in the device body 141, a first roller 143 is mounted in the mounting groove 142, an extension plate 144 is arranged at one end of the device body 141, a second roller 145 is mounted at the end of the extension plate 144, and a conveying belt 146 is sleeved between the first roller 143 and the second roller 145; the protruding plate 144 and the second roller 145 may protrude into the storage box 130; a third motor is connected to the first roller 143.
The third motor drives the first roller 143 to rotate, and the first roller 143 drives the belt 146 to move, so that the conveying function is realized, and the extension plate 144 is disposed to enable the belt 146 to extend into the storage box 130.
The first linear actuator 151 comprises a body 300, a cavity 310 is arranged in the body 300, a screw 320 is arranged in the cavity 310, a screw nut 330 is sleeved on the screw 320, and one end of the screw nut 330 is connected with a support rod 152; one end of the device body 300 is provided with a limiting hole 340, and the limiting hole 340 can clamp the supporting rod 152 to enable the supporting rod 152 to move up and down; the screw 320 is connected with a fourth motor.
The second linear actuator 171 has the same structure and distance as the first linear actuator 151 except that the second linear actuator 171 horizontally moves the support plate 172.
A control valve 121 is mounted on the breather pipe 120.
All the storage boxes 130 correspond to one elevating and lowering output device, and the elevating and lowering output device has the same structure as the first conveying device 140. The elevating and lowering output device can output the product in the storage box 130.
The embodiment provides a control method of a micro-freezing and fresh-keeping device, which adopts the micro-freezing and fresh-keeping device and comprises the following steps:
firstly, opening the air cooler 112, and continuously filling cold air into the cold air cavity 111 to make the corresponding storage box 130 full of cold air; maintaining the temperature at-1 to 1 ℃;
secondly, rotating the rotating rod 110 to rotate the corresponding storage box 130 to a predetermined position;
thirdly, the first conveying device 140 is adjusted through the lifting device 150 and the horizontal moving device 170, so that the first conveying device 140 horizontally corresponds to the second conveying device 160, the product is conveyed from the second conveying device 160 to the first conveying device 140, and the first conveying device 140 stops conveying;
fourthly, the first motor 134 drives the box door 132 to open; (opening the cassette door 132 first, preventing the first transporting device 140 from interfering with the opening of the cassette door 132)
Fifthly, adjusting the first conveying device 140 through the lifting device 150 to align the first conveying device 140 with the corresponding storage box 130;
sixthly, the first conveying device 140 is extended above the third conveying device 131 in the storage box 130 through the horizontal moving device 170; after the first conveying device 140 is started, the product is conveyed to the third conveying device 131, and after the third conveying device 131 is started, the product is conveyed to the rear;
seventh, the first motor 134 then drives the box door 132 to close, so that the product is transferred into the corresponding storage box 130 for the partial freezing.
The method can automatically and stably convey the products into the independent storage boxes 130 for slight freezing preservation, has small mutual influence, is easier to maintain the temperature, has good effect, saves time and labor and has high automation degree.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (10)
1. The utility model provides a fresh-keeping device freezes which characterized in that: comprises a rotating rod (110), a cold air cavity (111) is arranged in the rotating rod (110), the top end of the cold air cavity (111) is opened, and the top end is connected with an air cooler (112); a plurality of groups of breather pipes (120) are arranged on the rotating rod (110) from top to bottom in the circumferential direction, and the outer side of any breather pipe (120) is communicated with a storage box (130); all the storage boxes (130) correspond to a first conveying device (140), the bottom of the first conveying device (140) is provided with a lifting device (150), and one side of the first conveying device (140) is correspondingly provided with a second conveying device (160);
a third conveying device (131) is arranged in the storage box (130), a box door (132) is arranged at an opening at the outer side of the storage box (130), a driving rod (133) is connected to the top end of the box door (132), the driving rod (133) is rotatably installed at the top of the storage box (130), and the driving rod (133) is driven by a first motor (134) to rotate;
a horizontal moving device (170) is arranged below the lifting device (150), and the other side of the first conveying device (140) can be extended above the third conveying device (131) in the storage box (130) by the horizontal movement of the horizontal moving device (170).
2. The partial freezing and fresh-keeping apparatus according to claim 1, wherein: the bottom end of the rotating rod (110) is rotatably arranged on a base (200), a second motor (210) is arranged in the base (200), and the second motor (210) drives the rotating rod (110) to rotate.
3. The partial freezing and fresh-keeping device according to claim 2, characterized in that: the lifting device (150) comprises two vertical first linear actuators (151), a supporting rod (152) capable of moving up and down is connected between the two first linear actuators (151), and the first conveying device (140) is installed at the top of the supporting rod (152).
4. The partial freezing and fresh-keeping apparatus according to claim 3, wherein: the horizontal moving device supporting plate (170) comprises two horizontal second linear actuators (171), the top parts of the two horizontal second linear actuators (171) are connected with a supporting plate (172) capable of moving horizontally, and the top parts of the supporting plate (172) are connected with the two first linear actuators (151).
5. The partial freezing and fresh-keeping apparatus according to claim 4, wherein: the first conveying device (140) comprises a device body (141), a mounting groove (142) is formed in the device body (141), a first rolling shaft (143) is mounted in the mounting groove (142), an extending plate (144) is arranged at one end of the device body (141), a second rolling shaft (145) is mounted at the end of the extending plate (144), and a conveying belt (146) is sleeved between the first rolling shaft (143) and the second rolling shaft (145); the extension plate (144) and the second roller (145) can extend into the storage box (130); the first roller (143) is connected to a third motor.
6. The partial freezing and fresh-keeping apparatus according to claim 5, wherein: the second roller (145) is smaller in diameter than the first roller (143).
7. The partial freezing and fresh-keeping device according to claim 6, wherein: the first linear actuator (151) comprises a body (300), a cavity (310) is arranged in the body (300), a lead screw (320) is arranged in the cavity (310), a lead screw nut (330) is sleeved on the lead screw (320), and one end of the lead screw nut (330) is connected with a support rod (152); one end of the device body (300) is provided with a limiting hole (340), and the limiting hole (340) can clamp the supporting rod (152) to enable the supporting rod (152) to move up and down; the screw rod (320) is connected with a fourth motor.
8. The partial freezing and fresh-keeping apparatus according to claim 7, wherein: a control valve (121) is arranged on the breather pipe (120).
9. The partial freeze preservation apparatus of claim 8, wherein: all the storage boxes (130) correspond to a lifting output device, and the lifting output device and the first conveying device (140) have the same structure.
10. A control method of a micro-freezing fresh-keeping device is characterized in that: which employs a partial freeze preservation device as claimed in any one of claims 1 to 9 and comprises the following steps:
firstly, opening the air cooler (112), and continuously filling cold air into the cold air cavity (111) to fill the corresponding storage box (130) with the cold air;
rotating the rotating rod (110) to enable the corresponding storage box (130) to rotate to a preset position;
thirdly, the first conveying device (140) is adjusted through the lifting device (150) and the horizontal moving device (170), the first conveying device (140) horizontally corresponds to the second conveying device (160), products are conveyed from the second conveying device (160) to the first conveying device (140), and the first conveying device (140) stops conveying;
fourthly, the first motor (134) drives the box door (132) to be opened;
fifthly, adjusting the first conveying device (140) through the lifting device (150) to enable the first conveying device (140) to be aligned with the corresponding storage box (130);
sixthly, extending the first conveying device (140) to the upper part of the third conveying device (131) in the storage box (130) through the horizontal moving device (170); after the first conveying device (140) is started, conveying the products to a third conveying device (131), and after the third conveying device (131) is started, conveying the products to the rear;
seventh, the first motor (134) then drives the box door (132) to close, so that the product is transferred into the corresponding storage box (130) for micro-freezing and refreshing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210265287.5A CN114633952A (en) | 2022-03-17 | 2022-03-17 | Micro-freezing fresh-keeping device and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210265287.5A CN114633952A (en) | 2022-03-17 | 2022-03-17 | Micro-freezing fresh-keeping device and control method thereof |
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| CN114633952A true CN114633952A (en) | 2022-06-17 |
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| CN202210265287.5A Pending CN114633952A (en) | 2022-03-17 | 2022-03-17 | Micro-freezing fresh-keeping device and control method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115088755A (en) * | 2022-08-24 | 2022-09-23 | 合肥工业大学 | Micro-freezing preservation equipment and method for meat |
| CN115088756A (en) * | 2022-08-29 | 2022-09-23 | 合肥工业大学 | Meat preservation equipment and method capable of widening ice temperature zone |
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| WO2022048528A1 (en) * | 2020-09-02 | 2022-03-10 | 江苏中慧元通生物科技有限公司 | Refrigerated transport apparatus for genetic engineering vaccine |
| CN112875009A (en) * | 2021-01-11 | 2021-06-01 | 浙江树人学院（浙江树人大学） | Sample storage device for laboratory |
| CN214987874U (en) * | 2021-02-22 | 2021-12-03 | 广州极速制冷设备有限公司 | Automatic conveying device for refrigeration house |
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| CN115088755A (en) * | 2022-08-24 | 2022-09-23 | 合肥工业大学 | Micro-freezing preservation equipment and method for meat |
| CN115088755B (en) * | 2022-08-24 | 2022-11-18 | 合肥工业大学 | Micro-freezing preservation equipment and method for meat |
| CN115088756A (en) * | 2022-08-29 | 2022-09-23 | 合肥工业大学 | Meat preservation equipment and method capable of widening ice temperature zone |
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