CN106720233B - Mobile agricultural product precooling device and precooling method - Google Patents

Mobile agricultural product precooling device and precooling method Download PDF

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Publication number
CN106720233B
CN106720233B CN201710011506.6A CN201710011506A CN106720233B CN 106720233 B CN106720233 B CN 106720233B CN 201710011506 A CN201710011506 A CN 201710011506A CN 106720233 B CN106720233 B CN 106720233B
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cylinder body
ventilation
ventilation pipe
water
agricultural product
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CN106720233A (en
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汪峰
唐培安
宋伟
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Nanjing University of Finance and Economics
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Nanjing University of Finance and Economics
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00Preservation or chemical ripening of fruit or vegetables
    • A23B7/04Freezing; Subsequent thawing; Cooling
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B9/00Preservation of edible seeds, e.g. cereals
    • A23B9/10Freezing; Subsequent thawing; Cooling
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23NMACHINES 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
    • A23N12/00Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts
    • A23N12/02Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts for washing or blanching

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

Abstract

The invention discloses a mobile agricultural product precooling device and a precooling method, which belong to the technical field of agricultural product preservation and comprise a collecting cylinder body, a cart and a ventilation pipe, wherein the collecting cylinder body and the ventilation pipe are coaxially fixed on the cart, the ventilation pipe is arranged in the collecting cylinder body, the bottom of the ventilation pipe is communicated with a fan, the fan is fixed on the cart, the collecting cylinder body and the ventilation pipe are circumferentially provided with ventilation holes, the pipe body of the ventilation pipe is also provided with a water channel, the water channel is arranged between adjacent ventilation holes along the length direction of the ventilation pipe, the water channel is uniformly provided with water scattering holes along the length direction of the ventilation pipe, the water channel is communicated with a water supply pump, and the water pump is fixed on a mobile device. The device has the water spraying function, and after water spraying washing and cooling, the drum rotates and the middle pipe is transversely ventilated, so that the cooling and dehydration treatment are accelerated, the cooling is 1.5-2 times faster than the conventional bottom ventilation cooling, and the cooling or precipitation treatment of agricultural products can be completed in various places.

Description

Mobile agricultural product precooling device and precooling method
Technical Field
The invention belongs to the technical field of agricultural product preservation, and particularly relates to a mobile agricultural product precooling device and a precooling method.
Background
Low temperature is an important factor in ensuring freshness of agricultural products. The low temperature is beneficial to reducing the physiological metabolism process of the agricultural products, reducing the enzyme activity in tissues and inhibiting the infection of harmful organisms, thereby effectively prolonging the fresh-keeping period and the storage period of the agricultural products. Fresh agricultural products just harvested have a large amount of field heat, and if the agricultural products are not pre-cooled in time, condensation water is easily generated by air exhaled by the agricultural product tissue under the low-temperature condition and attached to the surface of the products, so that microorganisms grow or are infected. The fresh agricultural products in the tropics and subtropics have vigorous physiological metabolism activities, and are particularly prominent. If the cold-sensitive agricultural products are unsuitable for low-temperature storage and transportation, cold damage is easy to occur to the cold-sensitive agricultural products, physiological disorder is caused, tissue ulceration and quality spoilage occur, and commodity value of the agricultural products is affected. Therefore, the necessary pre-cooling treatment is carried out on the agricultural products before storage, the temperature of the agricultural products can be reduced, the physiological metabolic process is slowed down, the agricultural products are suitable for the low-temperature storage environment, the occurrence of cold damage and the production of condensed water can be prevented, and the shelf life and the storage period of the agricultural products are prolonged.
At present, the pre-cooling technology for agricultural products before storage mostly uses cold air or cold water as a cold source to ventilate, spray or soak the agricultural products, thereby achieving the effect of reducing the temperature of the agricultural products, and the whole treatment process is completed in a room or a large tank. At present, a simple and convenient mobile precooling technical device applied to a field land is not available for helping a grower to precool agricultural products. Most growers only place a large number of freshly harvested agricultural products in a shade place for cooling, the cooling speed is low and the pre-cooling temperature is difficult to control and master due to the influence of climate and geographical conditions, and potential hazards are brought to later low-temperature storage and transportation.
Disclosure of Invention
The invention aims to solve the technical problems that: aiming at the defects of the prior art, the utility model provides a mobile agricultural product precooling device and a precooling method, wherein the main body of the device is a mobile functional sieve mesh barrel, and a detachable ventilation pipe is arranged in the middle of the device, so that the agricultural products can be cooled or the water content can be treated in various places.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a first scheme for solving the technical problems: the utility model provides a portable agricultural product precooling apparatus, includes the cylinder body, still includes mobile device and ventilation pipe, the cylinder body is fixed on mobile device with the ventilation pipe is coaxial, and the ventilation pipe is located in the cylinder body, a ventilation pipe bottom intercommunication fan, the fan is fixed on mobile device, cylinder body and ventilation pipe all are equipped with the ventilation hole along circumference, the ventilation pipe body still is equipped with the water course, just the water course is arranged along ventilation pipe length direction between adjacent ventilation hole, and the water course evenly is provided with the hole that looses along ventilation pipe length direction, a water supply pump is located to the water course intercommunication, the water pump is fixed in on the mobile device. The device utilizes the fan to blow the wind into middle ventilation pipe to the ventilation hole air-out that establishes through ventilation pipe circumference, horizontal ventilation windage is little, and is quick and even to agricultural product surface air current exchange, and the cooling rate is fast, and the agricultural product surface temperature of each pile up layer can fall to unanimously, has overcome traditional bottom ventilation cooling inhomogeneous shortcoming, and has the water spray function, and after washing of water spray and cooling, rethread section of thick bamboo is rotatory with the horizontal ventilation of intermediate tube, and the acceleration cooling is handled with the dehydration, and cooling rate is 1.5-2 times faster than conventional bottom ventilation cooling. Meanwhile, the device can be suitable for various places, especially the fields, because the cart can be pushed and moved conveniently, and agricultural products can be stored at low temperature for the first time.
The invention also provides a second scheme for solving the technical problems: the utility model provides a portable agricultural product precooling apparatus, includes the cylinder body, still includes mobile device, fixing base, rotating base and ventilation pipe, the cylinder body install in rotating base is last, rotating base bottom center department is equipped with a section of thick bamboo, and rotating base pass through with a section of thick bamboo complex bearing is installed on the fixing base, the ventilation pipe passes a section of thick bamboo and is installed on the fixing base, and with cylinder body is coaxial, a ventilation pipe bottom intercommunication fan, the fan is fixed on mobile device, cylinder body and ventilation pipe all are equipped with the ventilation hole along the circumference, still be fixed with the drive on the mobile device rotating base's motor, the ventilation pipe body still is equipped with the water course, just the water course is arranged along ventilation pipe length direction between adjacent ventilation pipe length direction to the water course evenly is provided with the water scattering hole along ventilation pipe length direction, a water supply pump of water course intercommunication, the water pump is fixed in on the mobile device. The collecting cylinder body of the device can rotate under the action of the motor, the vent hole of the vent pipe radially vents air, the wind resistance is small, and meanwhile, under the action of the rotating centrifugal force, the convection speed of air is accelerated, so that the redundant moisture on the surface of wet air or agricultural products is thrown out of the cylinder, the collecting cylinder body has a water spraying function, and after water spraying washing and cooling, the water spraying washing and cooling effects are more obvious through the rotation of the cylinder and the transverse ventilation of the middle pipe, and the cooling and dewatering treatment is accelerated. The air quantity and the rotation speed can be adjusted to cope with different agricultural products.
As the preference for the two schemes, the height-diameter ratio of the collecting cylinder body is 1:0.6-0.8.
As a preference for both of the above solutions, the vent hole diameter is 10 mesh or 20 mesh or 40 mesh. The ventilation pipes with different ventilation hole diameters can be replaced according to different pre-cooling characteristics of agricultural products. If the ventilation cooling and dewatering are performed on grains, a ventilation pipe with the pore diameter of 40 meshes is selected. If the ventilation pipe is used for fruits and vegetables, 10-mesh ventilation pipes and 20-mesh ventilation pipes can be selected.
As the preference to the two schemes, the bottom of the collecting cylinder body is provided with a discharge opening. And the bottom of the collecting cylinder body is provided with a discharge opening, so that the agricultural product can be conveniently loaded and unloaded.
As preferable to the above two schemes, the collecting cylinder body is made of organic glass or stainless steel. The organic glass or stainless steel material is selected, so that the cleaning and sanitation are convenient, and the bearing capacity is good.
As a preference to the two solutions, the mobile device is a cart. The trolley is used, the operation is simple, the manufacturing cost is relatively low, and even the existing trolley is used for transformation.
As a preferable mode of the second aspect, the motor is externally connected with a driving shaft cylinder of the driving belt. The rotary base and the collecting cylinder body are driven to rotate in a belt transmission mode, so that the transmission is stable, and the damage to the surface of agricultural products is not easy to cause.
The invention also provides an agricultural product precooling method of the mobile agricultural product precooling device according to a second scheme, which comprises the following steps:
(1) Transporting the precooling device to the place where the agricultural products to be precooled are located, sequentially loading the agricultural products to be precooled into the collecting cylinder body, and keeping ventilation gaps among the agricultural products;
(2) Firstly, a water pump is started, water is sprayed to the agricultural products in the collecting cylinder body through a water channel and a water scattering hole for washing and cooling, then the water pump is turned off, a motor is started and drives a rotating base to rotate, meanwhile, a fan is started, and precooling is carried out for 3-5 hours through rotation of the collecting cylinder body and transverse ventilation of a ventilation pipe;
(3) And closing the motor and the fan, taking out the pre-cooled agricultural product, and reloading the agricultural product to be cooled.
Drawings
Fig. 1 is a schematic structural diagram of a mobile agricultural product precooling apparatus according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a mobile agricultural product precooling apparatus according to embodiment 2 of the present invention;
FIG. 3 is a schematic view of a vent tube according to the present invention;
the device comprises a 1-collecting cylinder body, a 2-cart, a 3-ventilation pipe, a 4-fan, a 5-ventilation hole, a 6-fixing seat, a 7-rotating base, an 8-shaft cylinder, a 9-bearing, a 10-motor, an 11-discharge opening, a 12-transmission belt, a 13-water pump, a 14-water channel and a 15-water scattering hole.
Description of the embodiments
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Examples
The utility model provides a portable agricultural product precooling apparatus as shown in fig. 1, includes collection tube body 1, still includes shallow 2 and ventilation tube 3, collection tube body 1 and ventilation tube 3 are coaxial to be fixed on shallow 2, and ventilation tube 3 locates in the collection tube body 1, ventilation tube 3 bottom intercommunication fan 4, fan 4 is fixed on shallow 2, collection tube body 1 and ventilation tube 3 all are equipped with ventilation hole 5 along the circumference, ventilation tube 3 pipe shaft still is equipped with water course 14, just water course 14 is arranged along ventilation tube 3 length direction between adjacent ventilation hole 5, and water course 14 evenly is provided with the hole 15 that looses along ventilation tube 3 length direction, water course 14 intercommunication water supply pump 13, water pump 13 is fixed in on shallow 2. The device utilizes fan 4 to blow the air into middle ventilation pipe to through ventilation pipe circumference ventilation hole air-out that establishes, horizontal ventilation windage is little, and is quick and even to agricultural product surface air current exchange, and the cooling rate is fast, and the temperature of each layer height can fall to unanimously, has overcome traditional bottom ventilation cooling inhomogeneous shortcoming, and the cooling rate is 1.5-2 times faster than conventional bottom ventilation cooling. Meanwhile, the device can be suitable for various places, especially the fields, because the cart can be pushed and moved conveniently, and agricultural products can be stored at low temperature for the first time. The height-to-diameter ratio of the collecting cylinder body 1 in this example is 1:0.8, and the vent hole diameters of the vent pipe and the collecting cylinder body can be 10 mesh, 20 mesh or 40 mesh. So as to be convenient for adapting to different types of agricultural products. In this example, the collecting cylinder body is made of stainless steel, and a discharge opening is formed in the bottom.
Examples
The utility model provides a portable agricultural product precooling apparatus as shown in fig. 2, includes collection tube body 1, still includes shallow 2, fixed seat 6, rotating base 7 and ventilation pipe 3, collection tube body 1 install in on the rotating base 7, rotating base 7 bottom center department is equipped with a section of thick bamboo 8, and rotating base 7 through with a section of thick bamboo 8 complex bearing 9 installs on fixing base 6, ventilation pipe 3 pass a section of thick bamboo 8 install on fixing base 6 and with collection tube body 1 is coaxial, ventilation pipe 3 bottom intercommunication fan 4, fan 4 is fixed on shallow 2, collection tube body 1 and ventilation pipe 3 all are equipped with ventilation hole 5 along the circumference, still be fixed with the drive on the shallow 2 rotating base 7's motor 10, ventilation pipe 3 pipe body still is equipped with water course 14, just water course 14 is arranged along ventilation pipe 3 length direction between adjacent ventilation hole 5, and water course 14 all is provided with water scattering hole 15 along ventilation pipe 3 length direction, water course 14 intercommunication water pump 13, water pump 13 is fixed in on the shallow 2. The motor 10 is externally connected with a transmission belt 12 to drive the shaft cylinder 8. The collection cylinder body 1 of the device can rotate under the action of the motor 10, radial air outlet is realized through the vent holes 5 of the ventilation pipe 3, the wind resistance is small, and meanwhile, under the action of the rotating centrifugal force, the air convection speed is accelerated, so that the redundant moisture on the surface of wet air or agricultural products is thrown out of the cylinder, and the cooling effect is more obvious. The air quantity and the rotation speed can also be adjusted to cope with different agricultural products.
The height-to-diameter ratio of the collecting cylinder body 1 in this example is 1:0.6, and the aperture of the ventilation pipe 3 and the ventilation hole 5 of the collecting cylinder body 1 can be 10 mesh, 20 mesh or 40 mesh. So as to be convenient for adapting to different types of agricultural products. The collecting vessel body 1 in this example is plexiglass and is provided with a discharge opening 11 at the bottom.
The agricultural product precooling method of the mobile agricultural product precooling device in the embodiment comprises the following steps:
(1) Transporting the precooling device to the place where the agricultural products to be precooled are located, sequentially loading the agricultural products to be precooled into the collecting cylinder body 1, and keeping ventilation gaps among the agricultural products;
(2) Firstly, a water pump 13 is started, water is sprayed to wash and cool agricultural products in the collecting cylinder body 1 through a water channel 14 and a water scattering hole 15, then the water pump 13 is turned off, a motor 10 is started and drives a rotating base 7 to rotate, meanwhile, a fan 4 is started, and precooling is carried out for 3-5 hours through rotation of the collecting cylinder body 1 and transverse ventilation of a ventilation pipe 3;
(3) And closing the motor 10 and the fan 4, taking out the pre-cooled agricultural products, and reloading the agricultural products to be cooled.
It will be appreciated by persons skilled in the art that the above embodiments are provided for illustration only and not for limitation of the invention, and that variations and modifications of the above described embodiments are within the scope of the claims of the invention as long as they are within the true spirit of the invention.

Claims (6)

1. The utility model provides a portable agricultural product precooling apparatus, includes the cylinder body, its characterized in that still includes mobile device, fixing base, rotating base and ventilation pipe, the cylinder body install in rotating base is last, rotating base bottom center department is equipped with a section of thick bamboo, and rotating base passes through with the bearing of a section of thick bamboo complex is installed on the fixing base, the ventilation pipe passes a section of thick bamboo and installs on the fixing base, and with cylinder body is coaxial, the ventilation pipe bottom intercommunication fan, the fan is fixed on mobile device, cylinder body and ventilation pipe all are equipped with the ventilation hole along circumference, still be fixed with on the mobile device the motor of drive rotating base, the ventilation pipe body still is equipped with the water course, just the water course is arranged along ventilation pipe length direction between adjacent ventilation hole to the water course evenly is provided with the louvre along ventilation pipe length direction, a water supply pump is linked to the water course, the water pump is fixed on the mobile device;
the height-diameter ratio of the collecting cylinder body is 1:0.6-0.8;
the pore diameter of the ventilation hole is 10 meshes or 20 meshes or 40 meshes.
2. The mobile agricultural product precooling apparatus according to claim 1, wherein a discharge opening is formed in the bottom of the collection cylinder body.
3. The mobile agricultural product precooling apparatus according to claim 1, wherein the collection cylinder body is made of organic glass or stainless steel.
4. The mobile agricultural product precooling apparatus as claimed in claim 1, wherein the mobile apparatus is a cart.
5. The mobile agricultural product precooling apparatus as claimed in claim 1, wherein the motor is externally connected with a driving belt driving shaft cylinder.
6. A method of pre-cooling agricultural products using the mobile agricultural product pre-cooling apparatus of claim 1, comprising the steps of:
(1) Transporting the precooling device to the place where the agricultural products to be precooled are located, sequentially loading the agricultural products to be precooled into the collecting cylinder body, and keeping ventilation gaps among the agricultural products;
(2) Firstly, a water pump is started, water is sprayed to wash and cool agricultural products in the collecting cylinder body through a water channel and a water scattering hole, then the water pump is turned off, a motor is started and drives a rotating base to rotate, meanwhile, a fan is started, and precooling is carried out for 3-5 hours through rotation of the collecting cylinder body and transverse ventilation of a ventilation pipe;
(3) And closing the motor and the fan, taking out the pre-cooled agricultural product, and reloading the agricultural product to be cooled.
CN201710011506.6A 2017-01-07 2017-01-07 Mobile agricultural product precooling device and precooling method Active CN106720233B (en)

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CN106720233B true CN106720233B (en) 2023-05-23

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR61863E (en) * 1951-07-18 1955-05-18 Method and devices for ventilating granular goods stored in stores, and particularly cereals
FR2302023A1 (en) * 1975-02-28 1976-09-24 Surier Albert Grain store air blower system - has inclined ducts in silo walls with free piston in common passage
CN1449975A (en) * 2002-04-11 2003-10-22 李长忠 Intelligent low-temp dried grain storage system
RU68479U1 (en) * 2007-06-15 2007-11-27 Федеральное государственное образовательное учреждение высшего профессионального образования "Костромская государственная сельскохозяйственная академия" VENTED GRAIN HOPPER
CN202068886U (en) * 2010-11-25 2011-12-14 浙江青风制冷设备制造有限公司 Grain ventilation cooling device and system
CN202232770U (en) * 2011-10-12 2012-05-30 广东石油化工学院 Fruit and vegetable pressure-difference precooling device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR61863E (en) * 1951-07-18 1955-05-18 Method and devices for ventilating granular goods stored in stores, and particularly cereals
FR2302023A1 (en) * 1975-02-28 1976-09-24 Surier Albert Grain store air blower system - has inclined ducts in silo walls with free piston in common passage
CN1449975A (en) * 2002-04-11 2003-10-22 李长忠 Intelligent low-temp dried grain storage system
RU68479U1 (en) * 2007-06-15 2007-11-27 Федеральное государственное образовательное учреждение высшего профессионального образования "Костромская государственная сельскохозяйственная академия" VENTED GRAIN HOPPER
CN202068886U (en) * 2010-11-25 2011-12-14 浙江青风制冷设备制造有限公司 Grain ventilation cooling device and system
CN202232770U (en) * 2011-10-12 2012-05-30 广东石油化工学院 Fruit and vegetable pressure-difference precooling device

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