Fruit and vegetable drying machine

Abstract

The utility model belongs to the field of fruit and vegetable processing and drying equipment, and relates to a fruit and vegetable dryer which comprises a hot air device, a drying device, a driving device, a control cabinet and a noise reduction device. Fruit and vegetables are loaded into the drying cylinder, the air energy host provides hot air, the hot air enters the hot air box, the drying cylinder is located above the hot air box, the drying cylinder rotates to dry the fruits and vegetables, hot strong wind low-temperature drying is achieved, more nutritional ingredients of the fruits and vegetables are kept, drying efficiency is high, and noise reduction and environmental protection are achieved; the device can be widely applied to the fruit and vegetable drying field.

Description

Technical Field

[0001] The utility model discloses a fruit and vegetable drying machine, which relates to the technical field of fruit and vegetable drying, in particular to low-temperature and strong-wind fruit and vegetable drying equipment. Background Art

[0002] Existing hot air drying technology for fruits and vegetables mainly uses hot air as a heat transfer medium to dehydrate fruits and vegetables in order to extend their shelf life or meet specific processing requirements.

[0003] The first disadvantage of existing hot air dryer technology: high energy consumption: traditional hot air dryers mostly use electric heating conveyor belt drying, which consumes relatively high energy. Especially in the case of long-term operation, the power consumption will become a considerable cost; it may also cause uneven drying, affect the drying effect, and even damage some temperature-sensitive fruits and vegetables.

[0004] Another technical shortcoming of the hot air dryer is that the noise is too loud: the hot air dryer will produce certain noise and vibration during operation, which will not only affect the working environment, but may also cause damage to the equipment itself.

[0005] There are also technical deficiencies of hot air dryers: Equipment maintenance cost: Hot air dryers need regular maintenance and upkeep during long-term operation, including cleaning, replacing filters, checking circuits, etc. These maintenance tasks require a certain amount of cost investment and may affect the normal operation of the equipment.

[0006] It is necessary to invent a drum dryer which has improved energy efficiency, reduced noise and vibration, uniform drying effect and reduced maintenance cost. Utility Model Content

[0007] In order to overcome the technical deficiencies of the existing hot air drying machines, a hot air drum type fruit and vegetable drying machine is invented.

[0008] A fruit and vegetable dryer comprises a hot air device, a drying drum device, a driving device, a control cabinet, a noise reduction device, and a bracket device; the hot air device comprises an air energy main unit and a fan, the air energy main unit provides hot air, and the fan blows the hot air into the bottom of the drying drum; the drying drum device comprises a drum net, a feed port, a discharge port, a cover, a spiral main blade, a closing blade, a circumferential reinforcement rib, and an axial reinforcement rib, the drum net is cylindrical, the feed port is located on the upper left side of the drum, and the fruits and vegetables are introduced into the drum net; the drum net is fixedly connected to the circumferential reinforcement rib, the drum net is fixedly connected to the axial reinforcement rib, and the circumferential reinforcement rib is fixedly connected to the axial reinforcement rib. The reinforcing ribs are fixedly connected with the axial reinforcing ribs, a conical closing transition connection is arranged between the drum net and the discharge port, the discharge port is located at the right end of the drum, the discharge port cooperates with the cover, the cover has a buckle, a spiral main blade is arranged in the drum net, and a closing blade is arranged in the conical closing; the driving device includes a motor, a reducer, a small gear, and a large gear, the motor is located in the lower middle part of the bracket, on one side of the drum net; the motor drives the reducer, the reducer drives the small gear, the small gear drives the large gear, and the large gear drives the drum net to rotate, the inner circle of the large gear is fixedly connected with the outer circle of the shaft ring, and the inner circle of the shaft ring is fixedly connected with the outer circle of the circumferential reinforcing ribs The control cabinet is connected with the motor, air energy main unit and fan respectively. The control cabinet is provided with an air energy button, a motor control button and a fan button to control the wind speed. The noise reduction device refers to a shaft ring, on which a through-ring hole is provided. The bracket device includes a bottom bracket of the drum, the bottom of the bracket is parallel to the ground, two sliding support wheels are provided at the left end of the bracket, two sliding support wheels are provided at the right end of the bracket, a small gear is provided in the middle of the bracket, the small gear is meshed and rotated with the large gear, two rolling support wheels are provided in the middle of the bracket, and the two rolling support wheels are connected with the large gear rolling support. The bottom and surrounding of the bracket are fully covered. The insulation wall comprises an insulation outer wall and an insulation inner wall, insulation material is filled between the insulation outer wall and the insulation inner wall, the bracket is fixedly connected to the insulation wall to form a hot air box, and the drying drum is located above the hot air box; the connection relationship of the fruit and vegetable dryer is: first install the bracket, set the air energy host on the left side of the bracket, the air outlet of the air energy host is connected with the air inlet of the fan, the air outlet of the fan is aligned with the hot air box at the bottom of the drum, and sliding support wheels are respectively arranged at the left and right ends of the bottom of the bracket to support the drum net, the motor drives the reducer, the reducer drives the small gear, the small gear drives the large gear, and the large gear drives the drum net to rotate.

[0009] The air energy host provides hot air in a temperature range of 20 to 62 degrees Celsius.

[0010] The fan is a low-noise fan, and the air volume range of the fan is 9600 to 14500 cubic meters per hour.

[0011] The spiral main blades arranged in the drying drum device are positive spiral blades or reverse spiral blades; the spiral main blades are arranged in equal parts according to the circumference of a circle, and each individual main spiral blade is spaced apart and not connected together.

[0012] The materials of the drum net, the feed port, the discharge port, the spiral main blades, the closing blades, the circumferential reinforcing ribs and the axial reinforcing ribs are food-grade stainless steel materials.

[0013] The mesh holes of the drum net are any one of circular holes, square holes, triangular holes, elliptical holes and diamond holes.

[0014] The closing blades arranged in the conical closing are positive spiral blades or reverse spiral blades.

[0015] The motor rotates forward or reverse.

[0016] The ring holes on the shaft collar are through holes, which are located on the left and right sides of the shaft collar and are evenly arranged along the shaft collar.

[0017] The collar is a hollow collar.

[0018] The drying process of the hot air drum fruit and vegetable dryer is:

[0019] Method step 1: Check the main power connection of the fruit and vegetable dryer, the hygienic requirements of the drying drum, and the buckle of the cover of the discharge port; after meeting the safety production requirements, start the air energy host and the fan motor; according to the different characteristics of fruits and vegetables, set different drying temperatures and times, and control the forward and reverse time of the motor;

[0020] Method step 2: put the fruits and vegetables to be dried into the feed port, and the motor rotates forward or reverse to ensure that the fruits and vegetables are evenly distributed and heated and dried;

[0021] Method step 3: Usually the total drying time is 72 hours, and the hot air temperature is 20 to 62 degrees Celsius; the drying temperature and time at different stages are controlled according to the specific fruits and vegetables;

[0022] It is usually divided into preheating drying stage, heating drying stage, and low temperature end drying stage;

[0023] Method step 4: After drying, turn off the air energy main unit, fan, motor, and release the buckle of the cover of the discharge port;

[0024] Method step 5: start the motor, the drum rotates, and the dried fruits and vegetables roll out from the discharge port;

[0025] Method step six: After the discharge is completed, check the main power connection of the fruit and vegetable dryer, clean the drying cylinder to meet the hygiene requirements, and fasten the cover of the discharge port for the next drying;

[0026] Definition of terms:

[0027] Horizontal: A plane parallel to the horizontal plane of the earth.

[0028] Left: For a horizontally placed fruit and vegetable dryer, the main viewing direction is facing the control cabinet. The left side of the fruit and vegetable dryer is defined as left.

[0029] Right: For a horizontally placed fruit and vegetable dryer, the main viewing direction is facing the control cabinet. The right side of the fruit and vegetable dryer is defined as right.

[0030] Front: For a horizontally placed fruit and vegetable dryer, the main viewing direction is facing the control cabinet and facing forward, which is defined as the front.

[0031] Rear: For a horizontally placed fruit and vegetable dryer, the main viewing direction is facing the control cabinet, which is at the back and is defined as the rear.

[0032] Working principle: The hot air dryer for fruits and vegetables transfers hot air to the drying box through the hot air system of the air energy host. The drum net is located above the drying box. The hot air dries the fruits and vegetables to evaporate the internal moisture, thereby achieving the purpose of drying.

[0033] The power principle is: using a "gear reduction mechanism" or "reduction gear set"; the driving wheel pinion drives the driven wheel large gear at a faster speed, the speed of the large gear is correspondingly low, and the rotational torque will increase at the same time.

[0034] According to the different fruits and vegetables to be dried, the technical parameters and gear ratio of the equipment should be selected. For example, chestnuts, walnuts and fruits with high moisture content require high temperature and relatively large gear transmission to ensure large torque and large gears to drive the roller net to rotate. At the same time, it is also necessary to consider adjusting the drying process parameters to meet the drying needs of different fruits and vegetables, with strong flexibility and adaptability.

[0035] Air energy main unit: The rated power of the existing air energy heating equipment on the market is selected according to the volume of the drum net. With the improvement of energy-saving and environmental protection awareness, more and more dryers begin to use heat pump technology, using low-temperature heat sources to generate high-temperature hot air, thereby improving energy efficiency.

[0036] Fan: The low-noise axial flow fan specially designed for baking available on the market.

[0037] Motor and reducer: The motor and reducer available on the market, the motor is a speed-regulating three-phase asynchronous motor, and the reducer is matched with the motor.

[0038] One of the functions of the motor's forward or reverse rotation is that when the dried fruits and vegetables in the drum net are unevenly piled, the motor can be turned on to rotate forward or reverse to achieve uniform dispersion of the dried and piled fruits and vegetables in the drum net under the action of the spiral main blades, thereby achieving uniform drying of the fruits and vegetables.

[0039] Pinion and gear: Both are spur gears, and the meshing ratio of the pinion to the gear is a large-proportion slow meshing ratio; when the driving wheel is a small gear and the driven wheel is a very large gear, this gear combination is usually called a "gear reduction mechanism".

[0040] Intermediate supporting wheels: Two intermediate supporting wheels are provided, located in the middle and lower part of the drum net, and are rollingly connected with the large gear.

[0041] Right end support wheel and left end support wheel: Two support wheels are respectively arranged below the right end and the left end of the drum net, and are respectively connected to the right end and the left end of the drum net in a rolling manner.

[0042] Spiral main blades: also called main impeller blades, spiral blades, fixed in the drum net, the spiral main blades are divided into six equal parts according to the circumference of a circle, each individual spiral main blade is spaced apart and not connected together, evenly and fully dispersed and stirred in the drum net to dry fruits and vegetables, the purpose is to make the fruit and vegetable drying efficiency high, without accumulation, drying uneven.

[0043] Closing blades: also called closing impeller blades and closing spiral blades, are fixedly set in the conical closing. The first function is to evenly and fully disperse and stir the dried fruits and vegetables in the conical closing. The second function is to start the motor again after the drying process is completed and the lid is opened. The motor drives the drum net to rotate, allowing the dried fruits and vegetables in the drum net to be discharged from the discharge port.

[0044] Shaft collar: It is a noise reduction shaft collar specially provided in this patent. The ring hole on the shaft collar is a through hole. The through holes are located on the left and right sides of the shaft collar and are evenly arranged along the shaft collar. The shaft collar is a hollow shaft collar. The hollow shaft collar and the through holes arranged on the left and right sides play a role in noise reduction. The connection relationship of the shaft collar is: the inner circle of the large gear is fixedly connected to the outer circle of the shaft collar, and the inner circle of the shaft collar is fixedly connected to the outer circle of the circumferential reinforcement rib.

[0045] Control cabinet: The control cabinet of this patent is specially used to control the air energy host, fan, and motor. It is located on the left side of the front of the fruit and vegetable dryer and is used to control and set the rotation, temperature, and hot air volume of the fruit and vegetable dryer.

[0046] Control cabinet: The control system equipped with the fruit and vegetable hot air dryer can monitor and adjust the hot air temperature, air volume, motor forward or reverse rotation and other parameters in real time to ensure the stability and uniformity of the drying process.

[0047] The remarkable features and technical progress of the utility model fruit and vegetable drying machine are:

[0048] The technical route is to use food-grade stainless steel mesh to design and manufacture the drum net, use environmentally friendly and energy-saving air energy host to provide hot air source, and low-noise baking special axial flow fan, and specially set the shaft ring between the large gear and the drum net, which has obvious noise reduction effect; real-time monitoring and adjustment of the drum net drying process can improve production efficiency and product quality.

[0049] The technical effects achieved are: energy saving and environmental protection, control of hot air flow, uniform drying of fruits and vegetables, retention of more nutrients, and original taste.

[0050] Realize the process flow: concise, intuitive and visual, simple to control, and safe to operate.

[0051] The purpose is to achieve: a large amount of drying at one time, low operation and maintenance costs, and significantly improve economic benefits.

[0052] Applicability and flexibility: The hot air dryer for fruits and vegetables is suitable for drying a variety of fruits and vegetables, such as pecans, ginkgo nuts, radish strips, nuts, etc. At the same time, by adjusting the drying process parameters, it can adapt to the drying needs of different fruits and vegetables, and has strong flexibility and adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 . Schematic diagram of the overall three-dimensional structure of the fruit and vegetable dryer without a front insulation wall.

[0054] Figure 2 .Schematic diagram of the three-dimensional structure of the feed port of the fruit and vegetable dryer.

[0055] Figure 3 . Schematic diagram of the three-dimensional structure of the spiral blades of the fruit and vegetable dryer drum.

[0056] Figure 4 .yes Figure 3 A partial enlarged view of the spiral blades of the middle BB drum.

[0057] Figure 5 .Schematic diagram of the three-dimensional structure of the hot air box of the fruit and vegetable dryer.

[0058] Figure 6 .yes Figure 5 Schematic diagram of the partial cross-sectional structure of the insulation wall of the medium AA hot air box.

[0059] In the figure: air energy main unit 1, feed inlet 2, fan 3, motor 4, reducer 5, small gear 6, large gear 7, rolling support wheel 8, bracket 9, insulation outer wall 9-1, insulation inner wall 9-2, insulation material 9-3, discharge port 10, drum net 11, circumferential reinforcement rib 11-1, axial reinforcement rib 11-2, spiral main blade 11-3, closing blade 11-4, tapered closing 11-5, hot air box 12, support wheel 13, right end front support wheel 13-1, right end rear support wheel 13-2, left end front support wheel 13-3, left end rear support wheel 13-4, shaft ring 14, ring hole 15, control cabinet 16. DETAILED DESCRIPTION

[0060] This patent is implemented in construction sites or workshops where a fruit and vegetable dryer is needed.

[0061] Embodiment 1

[0062] For fruits and vegetables with medium water content, the present invention implements a fruit and vegetable drying machine, including a hot air device, a drying drum device, a driving device, a control cabinet, a noise reduction device, and a bracket device; the hot air device includes an air energy host 1 and a fan 3, the air energy host 1 provides hot air, and the fan 3 blows the hot air into a hot air box 12 below the drying drum; the drying drum device includes a drum net 11, a feed port 2, a discharge port 10, a cover, a spiral main blade 11-3, a closing blade 11-4, a circumferential reinforcement rib 11-1, and an axial reinforcement rib 11-2, the drum net 11 is cylindrical, and the feed port 2 is located on the upper left side of the drum net 11 to guide fruits and vegetables into the drum net 11; the drum net 11 is fixedly connected to the circumferential reinforcement rib 11-1 The drum net 11 is fixedly connected with the axial reinforcing rib 11-2, the circumferential reinforcing rib 11-1 is fixedly connected with the axial reinforcing rib 11-2, a tapered closing opening 11-5 is set between the drum net 11 and the discharge port 10, the discharge port 10 is located at the right end of the drum net 11, the discharge port 10 cooperates with the cover, the cover has a buckle, a spiral main blade 11-3 is set in the drum net 11, and a closing blade 11-4 is set in the tapered closing opening; the driving device includes a motor 4, a reducer 5, a small gear 6, and a large gear 7. The motor 4 is located on the left side of the lower middle part of the bracket; the motor 4 drives the reducer 5, the reducer 5 drives the small gear 6, the small gear 6 drives the large gear 7, and the large gear 7 drives the drum net 11 to rotate, and the inner circle of the large gear 7 is connected to the large gear 7. The outer circle of the shaft ring 14 is fixedly connected, and the inner circle of the shaft ring 14 is fixedly connected to the outer circle of the circumferential reinforcement rib 11-1; the control cabinet 16 is respectively connected to the power lines of the motor 4, the air energy host 1 and the fan 3, and the control cabinet 16 is provided with an air energy control button, a motor control button, and a fan key to control the wind speed; the noise reduction device refers to the shaft ring 14, and the shaft ring 14 is provided with a ring hole 15; the bracket device includes a bottom bracket of the drum, the bottom of the bracket is parallel to the ground, two sliding support wheels 13 are provided at the left end of the bracket, two sliding support wheels 13 are provided at the right end of the bracket, a small gear 6 is provided in the middle of the bracket, the small gear 6 is meshed with the large gear 7 for rotation, and two rolling support wheels 8 are provided in the middle of the bracket, and the two rolling support wheels 8 are connected to the large gear 7 for rolling support. The bottom and surrounding of the bracket are provided with a full-coverage insulation wall, the insulation wall has an insulation outer wall 9-1 and an insulation inner wall 9-2, insulation material 9-3 is filled between the insulation outer wall and the insulation inner wall, the bracket is fixedly connected to the insulation wall to form a hot air box 12, and the drying drum is located above the hot air box 12; the connection relationship of the fruit and vegetable dryer is: first install the bracket, set the air energy host 1 on the left side of the bracket, the air outlet of the air energy host 1 is connected to the air inlet of the fan 3, the air outlet of the fan 3 is aligned with the hot air box 12 at the bottom of the drum, and the left and right ends of the bottom of the bracket are respectively provided with sliding support wheels 13 to support the drum net, the motor 4 drives the reducer 5, the reducer 5 drives the small gear 6, the small gear 6 drives the large gear 7, and the large gear 7 drives the drum net 11 to rotate.

[0063] The air energy host 1 provides hot air at a temperature of 42 degrees Celsius.

[0064] The fan 3 is a low-noise fan, and the air volume of the fan 3 is 12,500 cubic meters per hour.

[0065] The spiral main blades 11-3 arranged in the drying drum device are positive spiral blades or reverse spiral blades; the spiral main blades are arranged in equal parts according to the circumference of a circle, and each individual spiral main blade is spaced apart and not connected together.

[0066] The materials of the drum net 11, the feed port 2, the discharge port 10, the spiral main blades 11-3, the closing blades 11-4, the circumferential reinforcement ribs 11-1, and the axial reinforcement ribs 11-2 are food-grade stainless steel materials.

[0067] The mesh holes of the drum net 11 are any one of circular holes, square holes, triangular holes, elliptical holes and diamond holes.

[0068] The closing blade 11 - 4 arranged in the conical closing 11 - 5 is a positive spiral blade or a reverse spiral blade.

[0069] The motor 4 rotates forward or reversely.

[0070] The ring hole 15 on the shaft collar 14 is a through hole, which is located on the left and right sides of the shaft collar 14 and is evenly arranged along the shaft collar 14 .

[0071] The collar 14 is a hollow collar.

[0072] At the same time, the real-time monitoring and adjustment of the temperature, wind speed, and motor forward or reverse rotation of the drum net drying process can improve production efficiency and ensure drying quality.

[0073] Embodiment 2

[0074] For fruits and vegetables with high water content,

[0075] The air energy host 1 provides hot air at a temperature of 62 degrees Celsius.

[0076] The air volume of the fan 3 is 9600 cubic meters per hour.

[0077] The rest is the same as above.

[0078] Embodiment 3

[0079] For fruits and vegetables with low water content,

[0080] The air energy host 1 provides hot air at a temperature of 20 degrees Celsius.

[0081] The air volume of the fan 3 is 14,500 cubic meters per hour.

[0082] The rest is the same as above.

Claims

1. A fruit and vegetable drying machine, characterized in that: It includes a hot air device, a drying drum device, a driving device, a control cabinet, a noise reduction device, and a bracket device; the hot air device includes an air energy host and a fan. The air energy host provides hot air, and the fan blows the hot air into the hot air box under the drying drum; the drying drum device includes a drum net, a feed port, a discharge port, a cover, a spiral main blade, a closing blade, a circumferential reinforcement rib, and an axial reinforcement rib. The drum net is cylindrical, and the feed port is located on the upper left side of the drum to guide fruits and vegetables into the drum net; the drum net is fixedly connected to the circumferential reinforcement rib, the drum net is fixedly connected to the axial reinforcement rib, and the circumferential reinforcement rib is fixedly connected to the axial reinforcement rib. The axial reinforcement ribs are fixedly connected, a conical closing transition connection is set between the drum net and the discharge port, the discharge port is located at the right end of the drum, the discharge port cooperates with the cover, the cover has a buckle, a spiral main blade is set in the drum net, and a closing blade is set in the conical closing; the driving device includes a motor, a reducer, a small gear, and a large gear. The motor is located on the left side of the lower middle part of the bracket; the motor drives the reducer, the reducer drives the small gear, the small gear drives the large gear, and the large gear drives the drum net to rotate, the inner circle of the large gear is fixedly connected to the outer circle of the shaft ring, and the inner circle of the shaft ring is fixedly connected to the outer circle of the circumferential reinforcement rib; the control cabinet is divided into The control cabinet is provided with an air energy button, a motor control button, and a fan button to control the wind speed; the noise reduction device refers to a shaft ring, on which a ring hole is provided; the bracket device includes a drum bottom bracket, the bottom of the bracket is in parallel contact with the ground, two sliding support wheels are provided at the left end of the bracket, two sliding support wheels are provided at the right end of the bracket, a small gear is provided in the middle of the bracket, the small gear is meshed and rotated with the large gear, two rolling support wheels are provided in the middle of the bracket, and the two rolling support wheels are connected to the large gear rolling support; the bottom and surrounding of the bracket are fully covered with heat preservation The wall comprises an insulating outer wall and an insulating inner wall, insulating materials are filled between the insulating outer wall and the insulating inner wall, the bracket is fixedly connected to the insulating wall to form a hot air box, and the drying drum net is located above the hot air box; the connection relationship of the fruit and vegetable dryer is: first install the bracket, set an air energy host on the left side of the bracket, the air outlet of the air energy host is connected with the air inlet of the fan, the air outlet of the fan is aimed at the hot air box at the bottom of the drum net, and sliding support wheels are respectively arranged at the left and right ends of the bottom of the bracket to support the drum net, the motor drives the reducer, the reducer drives the small gear, the small gear drives the large gear, and the large gear drives the drum net to rotate.

2. A fruit and vegetable drying machine as claimed in claim 1, characterized in that: The air energy host provides hot air in a temperature range of 20 to 62 degrees Celsius.

3. A fruit and vegetable drying machine as claimed in claim 1, characterized in that: The fan is a low-noise fan, and the air volume range of the fan is 9600 to 14500 cubic meters per hour.

4. A fruit and vegetable drying machine as claimed in claim 1, characterized in that: The spiral main blades arranged in the drying drum net are positive spiral blades or reverse spiral blades; the spiral main blades are arranged in equal parts according to the circumference of a circle, and each individual spiral main blade is spaced apart and not connected together.

5. The fruit and vegetable drying machine according to claim 1, characterized in that: The materials of the drum net, the feed port, the discharge port, the cover, the spiral main blade, the closing blade, the circumferential reinforcement ribs and the axial reinforcement ribs are food-grade stainless steel materials.

6. A fruit and vegetable drying machine as claimed in claim 1, characterized in that: The mesh holes of the drum net are any one of circular holes, square holes, triangular holes, elliptical holes and diamond holes.

7. The fruit and vegetable drying machine according to claim 1, characterized in that: The closing blades arranged in the conical closing are positive spiral blades or reverse spiral blades.

8. The fruit and vegetable drying machine according to claim 1, characterized in that: The motor rotates forward or reverse.

9. The fruit and vegetable drying machine according to claim 1, characterized in that: The ring holes on the shaft collar are through holes, which are located on the left and right sides of the shaft collar and are evenly arranged along the shaft collar.

10. A fruit and vegetable drying machine as claimed in claim 9, characterized in that: The collar is a hollow collar.

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