A hot air drying machine for processing dried fruits

Abstract

The utility model relates to the technical field of dried fruit processing, especially to a van hot -air drying machine for dried fruit processing, including drying box, be provided with drying mechanism on drying box, drying mechanism includes the heater fixedly installed in the both sides of drying box symmetry, one side of heater is provided with air intake mechanism, the symmetrical setting of heater is provided with the conveying pipe extending to the inside of drying box, the inside of drying box is fixed with the fixing frame, the side of drying box is installed with motor, the movable mounting of fixed frame is connected with the output end of motor of rotating lever, both sides of rotating lever are equipped with the rack, the inside fixed mounting of rack has a plurality of limit frame. The application passes through drying mechanism and makes dried fruit be able to rotate in drying box and carry out drying, and the two sides of dried fruit can be heated, and a plurality of limit frames arranged in the rack can distinguish and place dried fruit, so that the heating of dried fruit is more uniform to improve the drying quality.

Description

Technical Field

[0001] This utility model relates to a box-type hot air dryer, and more particularly to a box-type hot air dryer for dried fruit processing, belonging to the field of dried fruit processing technology. Background Technology

[0002] Dried fruit is a ready-to-eat fruit product made from fresh fruit through dehydration. The processing of dried fruit removes most of the water from the fruit while retaining its flavor and some nutrients. It changes the original taste and texture of the fruit and helps extend its shelf life. It is a popular fruit processing product among consumers. Common examples include raisins, dried mangoes, and dried apples.

[0003] In the dried fruit processing, dehydration and drying are crucial steps, directly affecting the taste, color, and shelf life of the dried fruit. Common dehydration and drying methods include natural air drying and hot air drying. Natural air drying requires almost no energy, but it is inefficient, has poor quality control, takes a long time, and is greatly affected by environmental factors. Some fruits may even rot during natural air drying, so this method is not widely used in practice. Hot air drying is the mainstream method for dried fruit processing, with box-type hot air dryers being the most common.

[0004] In existing box-type hot air dryers, dried fruits are usually laid flat on the drying rack, which can only achieve drying on one side or in a fixed position, making it very easy to cause uneven drying. Furthermore, the squeezing of dried fruits can also lead to uneven heating, resulting in differences in the degree of drying and affecting the quality of the dried fruits. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a box-type hot air dryer for fruit drying with good drying uniformity.

[0006] The technical solution adopted by this application to solve the above-mentioned technical problems is as follows: A box-type hot air dryer for dried fruit processing includes a drying chamber with a drying mechanism. The drying mechanism includes heaters symmetrically fixedly installed on both sides of the drying chamber. An air inlet mechanism is provided on one side of each heater, preferably a blower commonly used in the art. Conveying pipes extending into the interior of the drying chamber are symmetrically arranged on the heaters. An exhaust fan is provided on the top of the drying chamber. A fixed frame is fixedly installed inside the drying chamber. A motor is installed on one side of the drying chamber. A rotating rod connected to the output end of the motor is movably installed on the fixed frame. Placement racks are provided on both sides of the rotating rod. A closing frame is movably installed on the placement rack via a hinge. Several limiting frames are fixedly installed inside the placement rack. A first bolt is provided on the closing frame. A fastening block is fixedly installed on the upper side of the placement rack.

[0007] Furthermore, a number of positioning rods are symmetrically arranged on the surface of the rotating rod, and a positioning plate is provided on the side of the placement frame corresponding to the position of the positioning rod. A first screw and a nut connected to the first screw are fixedly provided on the side of the rotating rod and the two sides of the placement frame that are close to each other, so that the rotating rod and the two sides of the placement frame are connected.

[0008] Furthermore, the upper part of the drying chamber is provided with two one-way valves located on top of the exhaust fan, and the one-way valves are threadedly connected to the drying chamber by several second bolts.

[0009] Furthermore, the bottom of the drying oven is provided with a perforated plate, and the bottom of the drying oven is provided with a collection frame. A discharge pipe is installed at the bottom of the collection frame, and a valve is provided on the discharge pipe.

[0010] Furthermore, the shape of the collection frame is set as a pyramid, and several push rods are evenly arranged around the periphery of the nut.

[0011] Furthermore, a filter screen is fixedly installed on one side of the air intake mechanism, and the filter screen is used to filter dust.

[0012] Furthermore, several support legs are provided on the periphery of the bottom of the drying oven, and rubber pads are provided on the bottom of the support legs.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This application utilizes a drying mechanism to allow the dried fruit to be dried to rotate within the drying chamber. After the dried fruit is placed in the rack, a closing frame is used to seal it by means of a first bolt and a fastening block. The heater and air intake mechanism are activated to deliver hot air into the drying chamber. Simultaneously, the drive motor rotates the two racks within the drying chamber via a rotating rod, ensuring that both sides of the dried fruit are heated. Furthermore, several limiting frames within the racks can separate the dried fruit for more even heating, thereby improving the drying quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the present invention from another perspective; Figure 3 This is a structural schematic diagram of the present invention from another perspective; Figure 4 This is a schematic diagram of the rotating rod structure of this utility model; Figure 5 This is a schematic diagram of the unfolded structure of the placement rack and closing rack of this utility model.

[0015] In the diagram: 1. Drying oven; 2. Drying mechanism; 3. Heater; 4. Air intake mechanism; 5. Conveying pipe; 6. Exhaust fan; 7. Fixing frame; 8. Motor; 9. Rotating rod; 10. Placement rack; 11. Closing frame; 12. Limiting frame; 13. First bolt; 14. Fastening block; 15. Positioning rod; 16. Positioning plate; 17. First screw; 18. Nut; 19. One-way valve; 20. Second bolt; 21. Orifice plate; 22. Collection frame; 23. Valve; 24. Discharge pipe; 25. Push rod; 26. Filter screen; 27. Support leg; 28. Rubber pad. Detailed Implementation

[0016] The technical solution of this utility model will be further described in a non-limiting manner below with reference to the accompanying drawings and specific embodiments.

[0017] like Figures 1-5 As shown, this embodiment provides a box-type hot air dryer for dried fruit processing, which includes a drying box 1. A drying mechanism 2 is provided on the drying box 1. The drying mechanism 2 includes heaters 3 symmetrically fixedly installed on both sides of the drying box 1. An air inlet mechanism 4 is provided on one side of the heaters 3. Two conveying pipes 5 extending into the interior of the drying box 1 are symmetrically installed on the heaters 3. An exhaust fan 6 is provided on the top of the drying box 1. A fixed frame 7 is fixedly installed inside the drying box 1. A motor 8 is fixedly installed on the back of the drying box 1. A rotating rod 9 connected to the output end of the motor 8 is movably installed on the fixed frame 7. Placement racks 10 are provided on both sides of the rotating rod 9. A closing frame 11 is movably installed on the placement rack 10 by a hinge. Several limiting frames 12 are fixedly installed inside the placement rack 10. A first bolt 13 is provided on the closing frame 11. A fastening block 14 is fixedly installed on the upper side of the placement rack 10.

[0018] The drying mechanism 2 allows the dried fruit to be dried to rotate within the drying chamber 1. After placing the dried fruit in the rack 10, the closing frame 11 is sealed over the rack 10 by the first bolt 13 and the fastening block 14. The heater 3 and the air intake mechanism 4 are activated to deliver hot air into the drying chamber 1. The drive motor 8 drives the two racks 10 to rotate inside the drying chamber 1 via the rotating rod 9, so that both sides of the dried fruit can be heated. At the same time, several limiting frames 12 set in the rack 10 separate the dried fruit to prevent them from squeezing each other, making the dried fruit heat more evenly and improving the drying quality.

[0019] like Figures 1-5As shown, a number of positioning rods 15 are symmetrically arranged on the surface of the rotating rod 9. Two positioning plates 16 are arranged on the side of the placement frame 10 corresponding to the positions of the positioning rods 15. The rotating rod 9 and the placement frame 10 are fixed with corresponding first screws 17 and nuts 18 on the sides that are close to each other. The upper part of the drying box 1 is provided with two one-way valves 19 located on the top of the exhaust fan 6. The one-way valves 19 are fixed to the drying box 1 by a number of second bolts 20. The bottom of the drying box 1 is provided with a perforated plate 21 and a collection frame 22. The bottom of the collection frame 22 is connected to and installed with a discharge pipe 24. A valve 23 is provided on the discharge pipe 24.

[0020] In this embodiment, the rotating rod 9 and the placement rack 10 are positioned by a connection of several positioning rods 15 and positioning plates 16. The placement rack 10 is fixed to the rotating rod 9 by fitting the nut 18 onto the connecting end of the two first screws 17. After rotating the nut 18 to detach it from the connecting end and move it onto one of the first screws 17, the fixation of the placement rack 10 can be removed so that it can be disassembled from the rotating rod 9. Under the action of the one-way valve 19, the exhaust fan 6 can only discharge the water vapor inside the drying chamber 1 from the inside to the outside, while preventing outside air from entering the interior of the drying chamber 1 through the exhaust fan 6. The perforated plate 21, the collection frame 22, the valve 23 and the discharge pipe 24 are set to facilitate the collection of water vapor, juice and other substances during the drying process, which fall through the perforated plate 21 into the collection frame 22. The collected liquid can be discharged through the discharge pipe 24 by opening the valve 23.

[0021] In this embodiment, as Figures 1-5 As shown, the shape of the collection frame 22 is preferably pyramidal. Several push rods 25 are evenly arranged around the nut 18. A filter screen 26 is fixedly installed on one side of the air intake mechanism 4. The filter screen 26 is used to filter dust. Several support legs 27 are arranged around the bottom of the drying box 1. Rubber pads 28 are installed at the bottom of the support legs 27.

[0022] By setting the shape of the collection frame 22 to a pyramidal shape, the liquid collected in the collection frame 22 converges towards the center so that it can be discharged from the valve 23; several push rods 25 are set on the nut 18 to facilitate the operation of the nut 18; the filter screen 26 is set to filter out dust and impurities from the outside; the stability of the drying oven 1 can be improved by setting the support legs 27 and the rubber pads 28.

[0023] like Figures 1-5 As shown, the working process of the box-type hot air dryer for dried fruit processing in this embodiment is as follows: The dried fruit to be dried is placed in several limiting frames 12 in the placement rack 10 and then the closing frame 11 is flipped over to cover the placement rack 10. After the first bolt 13 and the fastening block 14 are threaded together, the closing frame 11 is tightened. The air intake mechanism 4 is started to introduce air into the heater 3. The heater 3 is started to heat the air and deliver hot air into the drying box 1 through the conveying pipe 5. At the same time, the drive motor 8 drives the rotating rod 9 to rotate. The rotating rod 9 drives the two placement racks 10 to rotate in the drying box 1 so that both sides of the dried fruit can be heated.

[0024] The foregoing description illustrates and describes preferred embodiments of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. Modifications and variations made by those skilled in the art without departing from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A box-type hot air dryer for dried fruit processing, comprising a drying chamber (1), characterized in that: The drying box (1) is equipped with a drying mechanism (2); The drying mechanism (2) includes heaters (3) symmetrically fixedly installed on both sides of the drying box (1). An air inlet mechanism (4) is provided on one side of the heater (3). A conveying pipe (5) extending into the interior of the drying box (1) is symmetrically provided on the heater (3). An exhaust fan (6) is provided on the top of the drying box (1). The drying box (1) is fixedly equipped with a fixed frame (7). A motor (8) is installed on one side of the drying box (1). A rotating rod (9) connected to the output end of the motor (8) is movably installed on the fixed frame (7). Placement racks (10) are provided on both sides of the rotating rod (9). A closing frame (11) is movably installed on the placement rack (10). Several limiting frames (12) are fixedly installed inside the placement rack (10). A first bolt (13) is provided on the closing frame (11). A fastening block (14) is fixedly installed on the upper side of the placement rack (10).

2. The chamber-type hot air dryer for dried fruit processing according to claim 1, characterized in that: The rotating rod (9) has several positioning rods (15) symmetrically arranged on its surface. The side of the placement frame (10) is provided with a positioning plate (16) corresponding to the positioning rods (15). The rotating rod (9) and the placement frame (10) are both fixed with corresponding first screws (17) and nuts (18) on their sides that are close to each other.

3. The chamber-type hot air dryer for dried fruit processing according to claim 1, characterized in that: The upper part of the drying box (1) is provided with two one-way valves (19) located on top of the exhaust fan (6).

4. The chamber-type hot air dryer for dried fruit processing according to claim 2, characterized in that: The bottom of the drying box (1) is provided with a perforated plate (21) and a collection frame (22) is provided at the bottom of the drying box (1). The bottom of the collection frame (22) is connected to a discharge pipe (24) with a valve (23).

5. The chamber-type hot air dryer for dried fruit processing according to claim 4, characterized in that: The collecting frame (22) is pyramidal in shape, and several push rods (25) are evenly arranged on the periphery of the nut (18).

6. The chamber-type hot air dryer for dried fruit processing according to claim 1, characterized in that: A filter screen (26) is fixedly installed on one side of the air intake mechanism (4).

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