Dried fruit drying device

Abstract

The utility model discloses a dried fruit drying device which comprises a drying room body, a plurality of conveying mechanisms are installed in the drying room body, conveying paths of conveying belts are connected end to end, and a feeding hopper is installed above the feeding end of the conveying belt located on the uppermost layer. A rotatable feeding roller is installed on the side, close to the discharging end of the conveying belt located on the uppermost layer, of a discharging port of the feeding hopper and comprises a roller body, the axial direction of the roller body is parallel to the breadth direction of the conveying belt, a plurality of material blocking plates are arranged on the surface of the roller body in the circumferential direction of the roller body at intervals, and the length direction of the material blocking plates is parallel to the axial direction of the roller body. The length of the material blocking plate is not smaller than the breadth of the conveying belt, and the width of the material blocking plate is limited by the fact that when the material blocking plate rotates to the lowest point, a gap is formed between the material blocking plate and the surface of the conveying belt, and dried fruits cannot pass through the gap. The feeding roller structure enables the dried fruits to be sequentially laid on the surface of the transmission belt row by row, the dried fruits are arranged in order, obvious intervals exist between the rows, and even drying is facilitated.

Description

Technical Field

[0001] The utility model relates to dried fruit processing equipment, in particular to a dried fruit drying device. Background Art

[0002] Dried fruits are fruits whose peels are dried after ripening. There are many common dried fruits in life, such as chestnuts, castanea, pili nuts, hazelnuts, cashews, walnuts, pistachios, pecans, desert fruits, peanuts, almonds, macadamia nuts, etc. In order to extend the shelf life of dried fruits and improve their taste, dryers are widely used in the drying process of dried fruits.

[0003] The utility model patent of China Patent No. 202022528957.7 discloses a drying device for peanut selection, wherein a feed port is provided at the upper end of the machine body, and a hot air blower is installed on the right side of the feed port, a baffle is fixed at the upper end of the interior of the machine body, a support plate is fixed on the right side of the baffle, an air outlet is provided inside the support plate, a conveyor belt is installed below the air outlet, and an outlet is provided on the left side of the machine body. When using the drying device for peanut selection, two hot air blowers are turned on, and the hot air blowers send hot air from the ventilation duct to the air outlet, and the peanuts are poured into the feed port at the upper end of the machine body. The movement of the conveyor belt drives the driven wheel to move, and the peanuts gathered at the feed port are distributed on the conveyor belt in a layer through the baffle in turn, and the peanuts on the conveyor belt are dried through the air outlet, enter the second conveyor belt through the first conveyor belt, and are evenly distributed through the baffle on the second conveyor belt, and then dried, and finally come out from the outlet. The nuts in this device are densely laid on the conveyor belt, which is not conducive to uniform drying of the nuts. The baffle is a fixed structure. When the stack of nuts is stuck between the baffle and the conveyor belt, the baffle will fail and the feed will be blocked. On the other hand, the use of hot air drying also has the problems of high energy consumption and easy temperature contamination, and the drying efficiency still needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a dried fruit drying device.

[0005] The technical solution for achieving the object of the present utility model is as follows: A dried fruit drying device, which includes a drying chamber body. Inside the drying chamber body, several conveying mechanisms are sequentially installed from top to bottom. The conveying mechanism includes a conveyor belt. Each conveyor belt includes a feeding end and a discharging end. The conveying paths of each conveyor belt are connected end to end. Below the discharging end of the conveyor belt located at the lowermost layer, a receiving container is provided. Above the feeding end of the conveyor belt located at the uppermost layer, a feeding hopper is installed. The feeding hopper has a discharging opening; the discharging opening is close to the conveyor belt located at the uppermost layer. On one side of the discharging opening close to the discharging end of the conveyor belt located at the uppermost layer, a rotatable feeding roller is installed. The feeding roller includes a roller body. The axial direction of the roller body is parallel to the width direction of the conveyor belt. Along the circumferential direction of the roller body, several baffle plates are spaced apart on the surface of the roller body. The length direction of the baffle plate is parallel to the axial direction of the roller body. The length of the baffle plate is not less than the width of the conveyor belt. The width of the baffle plate is limited such that when the baffle plate rotates to the lowest point, there is a gap between the baffle plate and the surface of the conveyor belt, and dried fruits cannot pass through the gap.

[0006] Further, a heating device is installed in the middle of each conveyor belt. An air inlet and an air outlet are respectively provided inside the drying chamber body.

[0007] Further, the air inlet is located on the lower side of the drying chamber body, and the air inlet is close to the discharging end of the conveyor belt located at the lowermost layer. The air outlet is located on the upper side of the drying chamber body, and the air outlet is close to the feeding end of the conveyor belt located at the uppermost layer. Below each conveyor belt, an air duct partition is installed. The air duct partition is arranged parallel to the conveyor belt; one end of the air duct partition is installed on the drying chamber body on one side of the feeding end of the conveyor belt above the air duct partition, and the other end of the air duct partition is located on one side of the discharging end of the conveyor belt above the air duct partition and does not interfere with the falling of the dried fruits, so as to form different temperature zones inside the drying chamber body.

[0008] For the dried fruit drying device realized by the present utility model, dried fruits are put into the feeding hopper and fall onto the surface of the conveyor belt along the discharging opening by the action of gravity. The baffle plate blocks at the discharging opening, so that the dried fruits will not fall quickly and accumulate on the conveyor belt, and then scatter outside the conveyor belt or pile up together. Then, the feeding roller runs synchronously with the conveyor belt, so that the dried fruits are laid flat on the surface of the conveyor belt row by row. The dried fruits are arranged neatly, with the same interval, and there is an obvious interval between rows, which is convenient for uniform drying. Description of the Drawings

[0009] Figure 1 It is the front view structural schematic diagram of the dried fruit drying device described in the embodiment of the present utility model; among them, the arrow represents the conveying path;

[0010] Figure 2 For the feeding roller along Figure 1 The sectional structure schematic diagram in the A-A direction in Specific embodiments

[0011] The following describes the preferred embodiments of the present invention in detail with reference to the accompanying drawings.

[0012] As Figure 1 and Figure 2 shown, a dried fruit drying device includes a drying chamber body 1. Four conveying mechanisms 2 are sequentially installed in the drying chamber body 1 from top to bottom. The conveying mechanism 2 includes a conveyor belt 21. Each conveyor belt 21 includes a feeding end 211 and a discharging end 212. The conveying paths of each conveyor belt 21 are connected end to end. A receiving container 3 is arranged below the discharging end 212 of the conveyor belt 21 at the lowermost layer. An inlet hopper 4 is installed above the feeding end 211 of the conveyor belt 21 at the uppermost layer. The inlet hopper 4 has a discharging port 41. The discharging port 41 is close to the conveyor belt 21 at the uppermost layer. A rotatable feeding roller 5 is installed on one side of the discharging port 41 close to the discharging end 211 of the conveyor belt 21 at the uppermost layer. The feeding roller 5 includes a roller body 51. The axial direction of the roller body 51 is parallel to the width direction of the conveyor belt 21. A plurality of baffle plates 52 are arranged at intervals along the circumferential direction of the surface of the roller body 51. The length direction of the baffle plate 52 is parallel to the axial direction of the roller body 51. The length a of the baffle plate 52 is not less than the width of the conveyor belt 21. The width b of the baffle plate 52 is limited by the condition that when the baffle plate 52 rotates to the lowest point, there is a gap between the baffle plate 52 and the surface of the conveyor belt 21, and the dried fruit 100 cannot pass through the gap.

[0013] A heating device 6 is installed in the middle of each conveyor belt 21. An air inlet 11 and an air outlet 12 are respectively arranged in the drying chamber body 1. The air inlet 11 is located at the lower end side 13 of the drying chamber body 1, and the air inlet 11 is arranged close to the discharging end 211 of the conveyor belt 21 at the lowermost layer. The air outlet 12 is located at the upper end side 14 of the drying chamber body 1, and the air outlet 12 is arranged close to the feeding end 211 of the conveyor belt 21 at the uppermost layer. An air duct partition 7 is installed below each conveyor belt 21. The air duct partition 7 is arranged parallel to the conveyor belt 21. One end of the air duct partition 7 is installed on the drying chamber body 1 on one side of the feeding end 211 of the conveyor belt 21 above the air duct partition 7. The other end of the air duct partition 7 is located on one side of the discharging end 212 of the conveyor belt 21 above the air duct partition 7 and does not interfere with the falling of the dried fruit 100.

[0014] During operation, 100 dried fruits are put into the feed hopper 4. Due to gravity, they fall along the discharge port 41 onto the surface of the conveyor belt 21. The baffle plate 52 blocks at the discharge port 41, preventing the dried fruits 100 from falling rapidly and accumulating on the conveyor belt 21, and then scattering outside the conveyor belt 21 or piling up together. Then, the feeding roller 4 rotates counterclockwise and runs synchronously with the conveyor belt 21, making the dried fruits 100 lie flat on the surface of the conveyor belt 21 row by row in sequence. The dried fruits are arranged neatly with the same interval, and there is an obvious interval between rows, which is convenient for uniform drying.

[0015] Each layer of the conveying mechanism 2 conveys independently. The conveying paths of the conveyor belts 21 are connected end to end, enabling the dried fruits to fall naturally in sequence during the drying process until they reach the receiving container 3. A heating device 6 is arranged in the middle of each conveyor belt 21. The adjacent conveyor belts 21 are separated by an air duct partition 7, with the head and tail staggered, forming a drying duct from bottom to top in the drying chamber body 1. Air enters from the air inlet 11 and is discharged from the air outlet 12 along the drying duct, completing the drying process. Since the heating device 6 is directly installed in the middle, and the air moves from the bottom to the top, the air at the bottom is dry air and the air at the top is wet air (relative to the air at the bottom), while the dried fruits are at the bottom and the wet fruits are at the top. In this way, the relative humidity between the fruits and the air is closer, which is convenient for balanced drying, and the heat energy of the air moving from the bottom to the top is equivalent to being continuously used, making it more energy-efficient.

[0016] The number of the conveying mechanisms described in the present utility model is set according to production needs; the number of baffle plates on the feeding roller is set according to production needs. With fewer baffle plates, the interval between each column of dried fruits is relatively larger; the position of the heating device is not limited to inside the conveyor belt, but the heat energy utilization rate is high when installed inside the conveyor belt. The heating device is a conventional heating device in the drying chamber such as infrared heating; the positions of the air inlet and the air outlet are not limited to those shown in the embodiment, but the air inlet is at the bottom and the air outlet is at the top. Cooperating with the air duct partition, different temperature zones can be constructed, which is more energy-efficient.

[0017] The above are only the embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent process transformation made by using the content of the specification of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A dried fruit drying device, characterized in that: It comprises a drying room body, in which a plurality of conveying mechanisms are sequentially installed from top to bottom, the conveying mechanisms comprise conveyor belts, each of the conveyor belts comprises a feeding end and a discharging end, the conveying paths of the conveyor belts are connected end to end, a receiving container is arranged below the discharging end of the conveyor belt located at the bottom layer, a feeding hopper is arranged above the feeding end of the conveyor belt located at the top layer, and the feeding hopper has a discharging port; the discharging port is close to the conveyor belt located at the top layer, and the discharging port is close to the conveyor belt located at the top layer A rotatable feed roller is installed on one side of the discharge end of the conveyor belt, and the feed roller includes a roller body, the axial direction of the roller body is parallel to the width direction of the conveyor belt, and the surface of the roller body is provided with a plurality of baffle plates at intervals along its circumference, the length direction of the baffle plates is parallel to the axial direction of the roller body, the length of the baffle plates is not less than the width of the conveyor belt, and the width of the baffle plates is limited to the fact that when the baffle plates rotate to the lowest point, there is a gap between the baffle plates and the surface of the conveyor belt, and dried fruits cannot pass through the gap.

2. The dried fruit drying device according to claim 1, characterized in that: A heating device is installed in the middle of each conveyor belt, and an air inlet and an air outlet are respectively arranged in the drying room body.

3. The dried fruit drying device according to claim 2, characterized in that: The air inlet is located at the lower end side of the drying room body, and the air inlet is arranged close to the discharging end of the conveyor belt located at the lowest layer; the air exhaust port is located at the upper end side of the drying room body, and the air exhaust port is arranged close to the feeding end of the conveyor belt located at the uppermost layer; an air duct partition is installed under each of the conveyor belts, and the air duct partition is arranged parallel to the conveyor belt; one end of the air duct partition is installed on the drying room body on the side of the feeding end of the conveyor belt above the air duct partition, and the other end of the air duct partition is located on the side of the discharging end of the conveyor belt above the air duct partition and does not interfere with the falling of the dried fruits.

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