Apple drying processing equipment

By designing an apple dry processing equipment that includes a low-temperature drying box, vacuum and hot air device, the problems of uneven drying and high cost in existing equipment are solved, and efficient, uniform drying and quality improvement of apple drying is achieved.

CN119679173AInactive Publication Date: 2025-03-25SHANDONG AGRI & ENG UNIV +1
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Patent Information

Application Number
CN202411896749.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2025-03-25
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the existing low-temperature freeze-drying equipment, the drying chamber is large, and the cost of providing a low-temperature and vacuum environment is relatively high, the efficiency is low, and the cooling of the apple slices is uneven during the drying process, which affects the quality of the apple drying.

Method used

An apple dry processing equipment is designed, including a low-temperature drying box, a vacuum device, a hot air device, a refrigeration device, a refrigeration tube, a metal mesh device and a box door. The equipment provides a uniform low temperature environment by setting up multiple refrigeration chambers and drying chambers in the drying chamber, using refrigeration tubes and refrigeration devices, and controlling the drying process through vacuum and hot air devices to ensure uniform cooling and drying of apple slices.

Benefits of technology

The uniform cooling and drying of apple slices is achieved, the drying efficiency and quality is improved, the cost and space of the equipment are reduced, and the shape and nutritional retention of the apple dry are ensured.

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Abstract

The invention discloses apple drying processing equipment, and belongs to the technical field of fruit processing.The apple drying processing equipment comprises a low-temperature drying box, a vacuum device, a hot air device, a refrigerating device, a refrigerating pipe, a metal net rack device and a box door, refrigerating chambers and drying chambers are alternately arranged in the low-temperature drying box, and the metal net rack device is slidably installed in the drying chambers; a vacuum bin and a hot air bin are arranged on the left side and the right side of the drying chamber, an air outlet is formed in the left side wall of the drying chamber, an air inlet is formed in the right side wall of the drying chamber, the vacuum bin and the hot air bin are communicated with the drying chamber, and one-way valves are arranged in the air outlet and the air inlet. The refrigerating pipe is installed in the refrigerating chamber and communicated with the refrigerating device. Each metal net is independently located in the drying chamber, the upper portion and the lower portion of each metal net are evenly cooled at the same time, hot dry air at the proper temperature blows the upper surfaces and the lower surfaces of apple slices at the same time for sublimation, the drying quality of the apple slices is improved, the cost is reduced, and the drying efficiency is improved.
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Description

Technical Field

[0001] The invention belongs to the technical field of fruit processing, and in particular relates to a device for processing dried apples. Background Art

[0002] Dried apples are a common snack. Fresh apples are washed, peeled and sliced, and then the water is evaporated to prepare dried apples. The drying process of dried apples can be done by natural air drying, artificial drying and hot air drying, but these methods remove water while causing great damage to the nutrients in the apples. Low-temperature freeze drying can be used to prepare dried apples in a shape closer to the original apple slices and nutrition. However, the drying chamber in the existing low-temperature freeze drying equipment is large, the cost of providing a low temperature and vacuum environment is high, and the efficiency is low; and the refrigeration end is on both sides of the dried apple shelf, and the degree of cooling of the apple slices on both sides and in the middle of the shelf is different. When the apple slices are subsequently properly heated in a vacuum and low-temperature environment, there are differences in the degree of low-temperature drying of the apple slices on both sides and in the middle, which ultimately affects the quality of the dried apples. Summary of the invention

[0003] In view of this, the present invention provides an apple drying processing device to solve the above-mentioned problem.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] An apple drying processing equipment comprises: a low-temperature drying box, a vacuum device, a hot air device, a refrigeration device, a refrigeration pipe, a metal grid device and a box door, wherein the low-temperature drying box is provided with a plurality of refrigeration chambers and drying chambers alternately arranged from top to bottom, a plurality of the metal grid devices are installed on the side walls of the box door, and a plurality of the metal grid devices are respectively slidably installed in the drying chambers, a vacuum chamber is provided on the left side of each drying chamber, and a hot air chamber is provided on the right side, a plurality of air outlets are provided on the left side wall of the drying chamber, a plurality of air inlets are provided on the right side wall, and the vacuum chamber is provided with a plurality of air outlets, and a plurality of air inlets are provided on the right side wall. The air outlet is communicated with the drying chamber, and the hot air bin is communicated with the drying chamber through the air inlet. Both the air outlet and the air inlet are provided with a one-way valve. The vacuum device and the hot air device are installed at the top of the low-temperature drying box. The vacuum device is communicated with a plurality of vacuum bin pipelines, and the hot air device is communicated with a plurality of hot air bin pipelines. A plurality of refrigeration pipes are installed in the refrigeration chamber, and the refrigeration device is installed on the rear side wall of the low-temperature drying box. The refrigeration pipes are all communicated with the refrigeration device. The box door is sealed and connected to the low-temperature drying box.

[0006] Furthermore, the metal mesh device includes a metal mesh and a sliding support frame, a pair of the sliding support frames are installed at the bottom of both ends of the metal mesh, the sliding support frame includes a first support bar, a support rod and a second support bar, the first support bar is installed at the bottom end of the metal mesh, and a plurality of the support rods are evenly installed between the first support bar and the second support bar, a slide groove is provided on the bottom wall of the drying chamber, the second support bar is slidably installed in the slide groove, and the first support bar and the second support bar are both vertically fixed on the box door.

[0007] Furthermore, the air inlets and the air outlets on both sides of the drying chamber are arranged in two layers, and the height of the metal mesh is located between the two layers of the air inlets and between the two layers of the air outlets.

[0008] Furthermore, the refrigeration pipes are distributed in the refrigeration chamber in a serpentine shape.

[0009] Furthermore, the top wall and the bottom wall of the refrigeration chamber are both provided with fins, and the refrigeration pipes are distributed between the fins on the top wall and the bottom wall of the refrigeration chamber.

[0010] Furthermore, it also includes a solenoid valve and a drying filter, wherein the solenoid valve and the drying filter are installed on the connecting pipeline between the vacuum device and the vacuum bin, and another solenoid valve and the drying filter are installed on the connecting pipeline between the hot air device and the hot air bin.

[0011] Furthermore, a plurality of sealing platforms are arranged on the inner side wall of the chamber door, and the sealing platforms extend into the inlet and outlet of the drying chamber, and the number of the sealing platforms is the same as the number of the drying chambers.

[0012] Furthermore, a sealing ring is provided around the circumference of the sealing platform.

[0013] Furthermore, a handle is provided on the outer wall of the door.

[0014] The beneficial effects of the present invention are:

[0015] According to the present invention, each metal mesh containing fresh apple slices is separately located in a drying chamber, and the top wall and the bottom wall of the drying chamber provide a low-temperature environment for the drying chamber, and the upper and lower surfaces of the apple slices are cooled simultaneously, so that the upper and lower surfaces of the apple slices can be cooled to the same degree; the vacuum device provides a vacuum environment for the drying chamber through a vacuum chamber on one side, and the hot air device introduces a hot air chamber of appropriate temperature into the drying chamber through a hot air chamber on the other side, and the water vapor in the drying chamber is sublimated, and dried apples with excellent shape and nutrition are prepared by low-temperature drying means; the metal mesh in the drying chamber is located at a height between two layers of air inlets and between two layers of air outlets, so that the upper and lower surfaces of the apple slices can be subjected to uniform hot dry air, thereby improving the drying efficiency and the drying quality; the refrigeration pipe is located in a separate refrigeration chamber, so as to prevent the generated condensed water or frost from affecting the dried apples in the drying chamber; the serpentine refrigeration pipe and the upper and lower fins specifically improve the refrigeration efficiency of the drying chamber; the drying filter connected to the vacuum chamber prevents the air with water vapor in the drying chamber from affecting the vacuum device, and the drying filter connected to the hot air chamber prevents the hot air blown out by the hot air device from carrying water vapor into the drying chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0017] Figure 1 The figure is a front view of an apple drying processing equipment.

[0018] Figure 2 The figure is a schematic diagram of the internal structure of an apple drying processing equipment in the front view direction.

[0019] Figure 3 for Figure 2 Sectional view of AA.

[0020] Figure 4 for Figure 2 Cross-sectional view of BB.

[0021] Figure 5 for Figure 2 A partial enlarged view of C in the middle.

[0022] Figure 6 The figure is a top view of an apple drying processing equipment.

[0023] Among them, in the figure:

[0024] 10- low temperature drying oven, 11- refrigeration chamber, 111- fins, 12- drying chamber, 121- air outlet, 122- air inlet, 123- slide, 13- vacuum chamber, 14- hot air chamber, 15- one-way valve, 20- vacuum device, 30- hot air device, 40- refrigeration device, 50- refrigeration pipe, 60- metal grid device, 61- metal mesh, 62- sliding support frame, 621- first support bar, 622- support rod, 623- second support bar, 70- box door, 71- sealing platform, 72- sealing ring, 73- handle, 80- solenoid valve, 90- drying filter. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Refer to the attached Figure 1-6 As shown, the present invention provides an apple drying processing equipment, including: a low-temperature drying box 10, a vacuum device 20, a hot air device 30, a refrigeration device 40, a refrigeration pipe 50, a metal grid device 60 and a box door 70, wherein a plurality of refrigeration chambers 11 and drying chambers 12 are alternately arranged in the low-temperature drying box 10 from top to bottom, and the interlayer between the refrigeration chamber 11 and the drying chamber 12 has good heat conduction performance; a plurality of metal grid devices 60 are installed on the side wall of the box door 70, and a plurality of metal grid devices 60 are respectively slidably installed in the drying chamber 12, a vacuum chamber 13 is arranged on the left side of each drying chamber 12, and a hot air chamber 14 is arranged on the right side, a plurality of air outlets 121 are arranged on the left side wall of the drying chamber 12, and a plurality of air inlets 122 are arranged on the right side wall, and the vacuum chamber 13 is connected to the drying chamber 12 through the air outlet 121. The hot air bin 14 is connected to the drying chamber 12 through the air inlet 122, and a one-way valve 15 is provided in the air outlet 121 and the air inlet 122. The one-way valve 15 in the air outlet 121 can only allow air to enter the vacuum bin 13 from the drying chamber 12, and the one-way valve 15 in the air inlet 122 can only allow air to enter the drying chamber 12 from the hot air bin 14; the vacuum device 20 and the hot air device 30 are installed at the top of the low-temperature drying box 10, the vacuum device 20 is connected to multiple vacuum bins 13 pipelines, and the hot air device 30 is connected to multiple hot air bins 14 pipelines; multiple refrigeration pipes 50 are installed in the refrigeration chamber 11, and the refrigeration device 40 is installed on the rear side wall of the low-temperature drying box 10, and the refrigeration pipes 50 are all connected to the refrigeration device 40; the box door 70 is sealed and connected to the low-temperature drying box 10.

[0027] After the apples are washed, peeled and sliced, apple slices are made. The box door 70 is opened to pull the metal grid device 60 out of the low-temperature drying box 10, and the apple slices are laid flat on each layer of the metal grid device 60, and then pushed into the drying chamber 12. Each layer of the metal grid device 60 is located in a separate drying chamber 12. The refrigeration device 40 is turned on, and the temperature of the refrigeration chamber 11 is lowered through the refrigeration pipe 50. Then, the heat conduction between the refrigeration chamber 11 and the drying chamber 12 provides a low-temperature environment for the drying chamber 12; the top wall and the bottom wall of the drying chamber 12 are cooled simultaneously above and below the apple slices, so that the upper and lower surfaces of the apple slices can be cooled to the same degree. The refrigeration pipe 50 is separately located in the refrigeration chamber 11 to prevent the generated condensed water or frost from affecting the dried apples in the drying chamber 12; then the vacuum device 20 is turned on, and the vacuum device 20 evacuates the drying chamber 12 through the one-way valve 15 between the vacuum chamber 13 and the drying chamber 12, providing a vacuum environment for the drying chamber 12, and further reducing the water content of the apple slices under the low-temperature vacuum environment; after a certain period of time, the hot air device 30 is turned on, and the hot air temperature is appropriate, and enters the drying chamber 12 through the hot air chamber 14 to sublime the ice crystals or frost in the drying chamber 12, and after a certain period of time, the dried apples with excellent shape and nutrition are obtained.

[0028] In a preferred embodiment, the metal mesh device 60 includes a metal mesh 61 and a sliding support frame 62, a pair of sliding support frames 62 are installed at the bottom of both ends of the metal mesh 61, the sliding support frame 62 includes a first support bar 621, a support rod 622 and a second support bar 623, the first support bar 621 is installed at the bottom end of the metal mesh 61, and a plurality of support rods 622 are evenly installed between the first support bar 621 and the second support bar 623, a slide groove 123 is provided on the bottom wall of the drying chamber 12, the second support bar 623 is slidably installed in the slide groove 123, and the first support bar 621 and the second support bar 623 are both vertically fixedly installed on the box door 70.

[0029] In a preferred embodiment, the air inlets 122 and the air outlets 121 on both sides of the drying chamber 12 are arranged in two layers, and the height of the metal mesh 61 is located between the two layers of air inlets 122 and between the two layers of air outlets 121. This structural arrangement enables the upper and lower surfaces of the apple slices to be subjected to uniform hot dry air, thereby improving the drying efficiency and drying quality.

[0030] In a preferred embodiment, the refrigeration pipe 50 is distributed in the refrigeration chamber 11 in a serpentine shape, thereby improving the refrigeration efficiency of the refrigeration pipe 50 .

[0031] In a preferred embodiment, the top and bottom walls of the refrigeration chamber 11 are both provided with fins 111 , and the refrigeration pipes 50 are distributed between the fins 111 on the top and bottom walls of the refrigeration chamber 11 , thereby improving the efficiency of the cold energy in the refrigeration chamber 11 entering the drying chamber 12 .

[0032] In a preferred embodiment, an apple drying processing device further includes a solenoid valve 80 and a drying filter 90, which are installed on the connecting pipeline between the vacuum device 20 and the vacuum bin 13, and another solenoid valve 80 and drying filter 90 are installed on the connecting pipeline between the hot air device 30 and the hot air bin 14. The drying filter 90 connected to the vacuum bin 13 prevents the air with water vapor in the drying chamber 12 from affecting the vacuum device 20, and the drying filter 90 connected to the hot air bin 14 prevents the hot air blown out by the hot air device 30 from carrying water vapor into the drying chamber 12.

[0033] In a preferred embodiment, a plurality of sealing platforms 71 are provided on the inner wall of the box door 70, and the sealing platforms 71 extend into the inlet and outlet of the drying chamber 12. The number of the sealing platforms 71 is the same as the number of the drying chambers 12, and the sealing platforms 71 extend into the inlet and outlet positions of the drying chamber 12 to improve the sealing effect.

[0034] In a preferred embodiment, a sealing ring 72 is provided around the sealing platform 71 , and the sealing ring 72 is made of elastic rubber material to further improve the sealing efficiency.

[0035] In a preferred embodiment, a handle 73 is provided on the outer wall of the box door 70 , and the box door 70 is opened by the handle 73 , and the metal grid device 60 is pulled out of the drying chamber 12 .

[0036] Example

[0037] After the apples are washed, peeled and sliced, they are made into apple slices. The door 70 is opened by the handle 73, and the metal grid device 60 is pulled out of the low-temperature drying box 10. The apple slices are laid flat on each layer of the metal mesh 61 and then pushed into the drying chamber 12. Each layer of the metal grid device 60 is located in a separate drying chamber 12. The refrigeration device 40 is turned on, and the temperature of the refrigeration chamber 11 is lowered through the refrigeration pipe 50. The fins 111 on the top and bottom walls of the refrigeration chamber 11 are used to further improve the refrigeration speed and effect of the drying chamber 12. The top and bottom walls of the drying chamber 12 are cooled simultaneously above and below the apple slices, which can make the apple slices The upper and lower surfaces are cooled to the same extent; the refrigeration pipe 50 is located separately in the refrigeration chamber 11 to prevent the generated condensed water or frost from affecting the dried apples in the drying chamber 12; then the vacuum device 20 is turned on, and the drying chamber 12 is evacuated through the one-way valve 15 between the vacuum chamber 13 and the drying chamber 12 to provide a vacuum environment for the drying chamber 12, and the water content of the apple slices is further reduced under the low-temperature vacuum environment; after a certain period of time, the hot air device 30 is turned on, and the hot air temperature is appropriate, and the hot air enters the drying chamber 12 through the hot air chamber 14 to sublime the ice crystals or frost in the drying chamber 12, and after a certain period of time, the dried apples with excellent shape and nutrition are obtained.

[0038] The above is only a specific embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

[0039] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0040] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An apple drying processing equipment, characterized in that: include: A low-temperature drying box (10), a vacuum device (20), a hot air device (30), a refrigeration device (40), a refrigeration pipe (50), a metal grid device (60) and a box door (70), wherein the low-temperature drying box (10) is provided with a plurality of refrigeration chambers (11) and drying chambers (12) alternately arranged from top to bottom, a plurality of the metal grid devices (60) are installed on the side walls of the box door (70), and a plurality of the metal grid devices (60) are respectively slidably installed in the drying chambers (12), a vacuum chamber (13) is provided on the left side of each drying chamber (12), and a hot air chamber (14) is provided on the right side, a plurality of air outlets (121) are provided on the left side wall of the drying chamber (12), and a plurality of air inlets (122) are provided on the right side wall, and the vacuum chamber (13) is connected to the drying chamber (12) through the air outlets (121). The low-temperature drying box (10) is connected to a plurality of vacuum bins (13) and a hot air bin (14). The hot air bin (14) is connected to the drying chamber (12) through the air inlet (122). Both the air outlet (121) and the air inlet (122) are provided with a one-way valve (15). The vacuum device (20) and the hot air device (30) are installed at the top of the low-temperature drying box (10). The vacuum device (20) is connected to a plurality of vacuum bins (13) through pipelines, and the hot air device (30) is connected to a plurality of hot air bins (14) through pipelines. A plurality of refrigeration pipes (50) are installed in the refrigeration chamber (11). The refrigeration device (40) is installed on the rear side wall of the low-temperature drying box (10). The refrigeration pipes (50) are all connected to the refrigeration device (40). The box door (70) is sealed and connected to the low-temperature drying box (10).

2. The dried apple processing equipment according to claim 1, characterized in that: The metal mesh device (60) includes a metal mesh (61) and a sliding support frame (62), a pair of the sliding support frames (62) are installed at the bottom of both ends of the metal mesh (61), the sliding support frame (62) includes a first support bar (621), a support rod (622) and a second support bar (623), the first support bar (621) is installed at the bottom end of the metal mesh (61), and a plurality of support rods (622) are evenly spaced and installed between the first support bar (621) and the second support bar (623), a slide groove (123) is provided on the bottom wall of the drying chamber (12), and the second support bar (623) is slidably installed in the slide groove (123), and the first support bar (621) and the second support bar (623) are both vertically fixedly installed on the box door (70).

3. The dried apple processing equipment according to claim 2, characterized in that: The air inlets (122) and the air outlets (121) on both sides of the drying chamber (12) are both arranged in two layers, and the height of the metal mesh (61) is located between the two layers of the air inlets (122) and between the two layers of the air outlets (121).

4. The dried apple processing equipment according to claim 1, characterized in that: The refrigeration pipe (50) is distributed in the refrigeration chamber (11) in a serpentine shape.

5. The dried apple processing equipment according to claim 1, characterized in that: The top wall and the bottom wall of the refrigeration chamber (11) are both provided with fins (111), and the refrigeration pipes (50) are distributed between the fins (111) on the top wall and the bottom wall of the refrigeration chamber (11).

6. The dried apple processing equipment according to claim 1, characterized in that: It also includes a solenoid valve (80) and a drying filter (90), wherein the solenoid valve (80) and the drying filter (90) are installed on the connecting pipeline between the vacuum device (20) and the vacuum bin (13), and another solenoid valve (80) and the drying filter (90) are installed on the connecting pipeline between the hot air device (30) and the hot air bin (14).

7. The dried apple processing equipment according to claim 1, characterized in that: A plurality of sealing platforms (71) are arranged on the inner side wall of the chamber door (70), and the sealing platforms (71) extend into the inlet and outlet of the drying chamber (12), and the number of the sealing platforms (71) is the same as the number of the drying chambers (12).

8. The dried apple processing equipment according to claim 7, characterized in that: A sealing ring (72) is arranged around the sealing platform (71).

9. The dried apple processing equipment according to claim 1, characterized in that: A handle (73) is provided on the outer wall of the box door (70).