A fruit and vegetable drying machine

Abstract

The present invention discloses a fruit and vegetable dryer, comprising a drying box, and a partition, a hot air generating device and an air distribution device arranged in the drying box. The partition divides the drying box into at least two interconnected drying chambers, the hot air generating device is arranged in one of the at least two drying chambers, and the air distribution device is used to uniformly guide the hot air in the drying chamber provided with the hot air generating device to the other drying chamber. The fruit and vegetable dryer disclosed in the present invention introduces the hot air in one chamber into another chamber uniformly through the air distribution device, so that all chambers form a flowing circulating wind. The uniform hot air can form uniform and consistent drying conditions for the materials in all chambers, so that the material drying consistency is good and the drying quality is high. Moreover, there is no need for multiple hot air generating devices to work simultaneously, and the energy utilization rate is high.

Description

Technical Field

[0001] The present invention relates to the technical field of material drying, in particular to a fruit and vegetable drying machine. Background Art

[0002] A fruit and vegetable dryer is a device used to dry fruits and vegetables. It is suitable for dehydrating dried fruits, vegetables, and other flake, block, strip, and granular items, as well as Chinese herbal medicines. The fruit and vegetable dryer uses the air-drying principle to dry the material by delivering hot air generated by a hot air furnace into the drying chamber.

[0003] Existing fruit and vegetable dryers generally have the problem that the hot air generated after entering the drying chamber is uneven, resulting in serious inconsistency in the degree of drying of the materials and uneven drying.

[0004] In view of this, it is necessary to propose a fruit and vegetable drying machine to alleviate the above-mentioned defects. Summary of the Invention

[0005] The present invention provides a fruit and vegetable drying machine, which solves the technical problem of uneven and inconsistent material drying.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] A fruit and vegetable dryer comprises a drying box, and a partition, a hot air generating device and an air equalizing device arranged in the drying box, wherein the partition divides the drying box into at least two mutually connected drying chambers, the hot air generating device is arranged in at least one of the two drying chambers, and the air equalizing device is used to uniformly guide the hot air in the drying chamber where the hot air generating device is arranged to the other drying chamber.

[0008] Furthermore, the wind equalizing device includes a vertical plate, an end plate and an air guide structure, and the three form an air receiving cavity. The air guide structure is provided with a plurality of evenly distributed air outlet slots, and the air guide structure evenly guides the hot air collected by the air receiving cavity from the air outlet slots.

[0009] Furthermore, the air guide structure is a plurality of air guide strips connected to the end plate, and two adjacent air guide strips are spaced apart to form the air outlet slot.

[0010] Furthermore, the air guide structure also includes a driving device, and each of the air guide strips is driven to swing simultaneously by the driving device. The driving device includes a rotating gear arranged at both ends of each of the air guide strips and a movable rack arranged on the end plate. The rotating gear is engaged with the movable rack, and the movable rack drives the rotating gear to rotate and thereby drives each of the air guide strips to swing simultaneously.

[0011] Furthermore, the air equalizing device further includes a pull rod, the end plates are two pieces arranged opposite to each other, and the two ends of the pull rod are respectively connected to the two end plates.

[0012] Furthermore, the opening of the air receiving cavity faces the direction of the hot air blown out by the hot air generating device.

[0013] Furthermore, the partition divides the drying box into two drying chambers, namely a first drying chamber and a second drying chamber. The hot air generating device is arranged in the first drying chamber, the air equalizing device is arranged in the second drying chamber, and the air equalizing device is arranged at an end away from the hot air generating device.

[0014] Furthermore, the hot air generating device includes a hot air stove and a circulating fan, and the circulating fan blows the hot air generated by the hot air stove into the drying chamber.

[0015] Furthermore, it also includes an air distribution hole plate arranged at the air outlet of the hot air generating device, and the air distribution hole plate is used to disperse the hot air emitted by the hot air generating device.

[0016] Furthermore, the air balancing plate includes a plate body and ventilation holes evenly distributed in an array on the plate body.

[0017] The present invention has the following beneficial effects:

[0018] The fruit and vegetable dryer provided by the present invention uses the air distribution device to evenly introduce the hot air from one drying chamber into another chamber, so that all chambers form a flowing circulating air flow. The uniform hot air can create uniform and consistent drying conditions for the materials in all drying chambers, ensuring good drying consistency and high drying quality. Moreover, there is no need to install the hot air generating device in each drying chamber, which solves the problem of the prior art that a hot air generating device must be installed on the side of each chamber. The purpose can be achieved by simply installing the hot air generating device, thereby increasing the efficient use of energy, reducing equipment investment, and lowering production costs.

[0019] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 This is a structural diagram of the fruit and vegetable drying machine provided by the present invention;

[0022] Figure 2 for Figure 1 A schematic structural diagram of an embodiment of an air equalization device is shown;

[0023] Figure 3 for Figure 2 A structural schematic diagram of another embodiment of the air guide structure shown;

[0024] Figure 4 for Figure 1 The structural schematic diagram of the wind balancing plate is shown. DETAILED DESCRIPTION

[0025] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] See also Figure 1, is a structural diagram of the fruit and vegetable dryer provided by the present invention. The fruit and vegetable dryer includes a drying box 1, and a partition 3, a hot air generating device 5 and an air distribution device 7 arranged in the drying box 1. The partition 3 divides the drying box 1 into at least two mutually connected drying chambers. The hot air generating device 5 is arranged in at least one of the two drying chambers. The air distribution device 7 is used to uniformly guide the hot air in the drying chamber provided with the hot air generating device 5 to the other drying chamber. The hot air in one drying chamber is uniformly introduced into another drying chamber by the air distribution device 7, so that all drying chambers form a flowing circulating wind. The uniform hot air can form uniform and consistent drying conditions for the materials in all drying chambers, so that the drying consistency of the materials is good and the drying quality is high. Moreover, there is no need to set the hot air generating device 5 in each drying chamber, which solves the problem of the prior art that the hot air generating device 5 needs to be set on the side of each drying chamber, reduces the investment in equipment, and reduces the production cost.

[0030] Specifically, in this embodiment, the partition 3 is a single piece and is arranged along the length direction of the drying box 1. The partition 3 divides the drying space in the drying box 1 into two interconnected drying chambers, namely the first drying chamber 8 and the second drying chamber 9. The hot air generating device 5 is arranged in the first drying chamber 8, and the air equalizing device 7 is arranged in the second drying chamber 9, and is located at an end away from the hot air generating device 5. Figure 1 In the direction indicated by the arrow, the air balancing device 7 is arranged at the wind inlet of the second drying chamber 9. The hot air in the first drying chamber 8 forms a 90-degree turn and flows into the second drying chamber 9. The air balancing device 7 quickly guides the hot air at the corner to another direction and then evenly disperses it before flowing out.

[0031] It should be noted that, in other embodiments, the partitions 3 may be multiple, spaced side by side, to separate the space according to the size of the drying box 1. For example, if there are two partitions 3, the space within the drying box 1 can be divided into three drying chambers arranged side by side. Based on the direction of wind circulation, the air balancing device 7 is disposed at the air inlet of the second and third drying chambers to achieve the purpose of inducing air, so that flowing hot air is formed in each drying chamber. In this way, the hot air in all drying chambers can be evenly distributed simply by installing the air balancing device 7.

[0032] See also Figure 2 ,for Figure 1The following is a schematic diagram of the structure of the air distribution device. The air distribution device 7 comprises a vertical plate 71, an end plate 73, and an air guide structure 75, which enclose an air receiving chamber 77. The air guide structure 75 is provided with a plurality of evenly distributed air outlet slots 753. The air guide structure 75 evenly guides the hot air collected by the air receiving chamber 77 out of the air outlet slots 753 to achieve uniform wind distribution. Specifically, in this embodiment, the vertical plate 71 serves as the opening and closing door of the drying box 1, and the end plate 73 is directly fixed to the opening and closing door.

[0033] See also Figure 2 In one embodiment, the air guide structure 75 is a plurality of air guide strips 751 fixedly connected to the end plate 73, and two adjacent air guide strips 751 are spaced apart to form the air outlet slot 753. Preferably, in this embodiment, the air guide strips 751 are detachably connected to the end plate 73 by screws. The air guide strips 751 are L-shaped in cross-section and are specifically angle steels. Screws 5 fix one side plate of the angle steel to the end plate 73. In addition, in order to adjust the spacing between the air guide strips 751, a plurality of threaded holes are provided on the end plate 73, and the threaded holes required for installing the air guide strips 751 can be selected according to the spacing requirements.

[0034] See also Figure 3 ,for Figure 2 The structure of another embodiment of the air guide structure is shown in FIG. In another embodiment, the air guide structure 75 further includes a driving device 79, which drives each of the air guide bars 751 to swing simultaneously. The driving device 79 includes a rotating gear 791 disposed at each end of each air guide bar 751 and a movable rack 793 disposed on the end plate 73. The rotating gear 791 engages with the movable rack 793, which drives the rotating gear 791 to rotate, thereby driving each of the air guide bars 751 to swing simultaneously. The movable rack 793 is connected to a chain, and a motor drives the chain to move, thereby pulling the movable rack 793 back and forth. In this embodiment, the air guide bars 751 are elongated plates 101, and each end of the air guide bar 751 is provided with a rotating shaft, which is integrally assembled with the rotating gear 791. By adjusting the travel distance of the movable rack, the rotation angle of the rotating gear 791 is controlled, thereby controlling the deflection angle of the air guide bar 751 mounted on the rotating gear 791. Therefore, the drive device 79 allows the air guide bar 751 to automatically adjust its deflection angle according to user needs. For example, when the material rack 20 is positioned near the partition 3, the air guide bar 751 deflects toward the partition 3. However, when the material rack 20 is positioned near the outside of the drying box 1, the air guide bar 751 deflects away from the partition 3, optimizing the automation level of the equipment.

[0035] The wind equalizing device 7 further includes a tie rod 72. The end plates 73 are arranged in two opposite directions. The ends of the tie rod 72 are respectively connected to the two end plates 73. The tie rod 72 is used to fix the two end plates 73 to improve the structural stability of the two end plates 73.

[0036] The air receiving chamber 77 is a triangular structure. Enclosed by the vertical plate 71, the top plate, and the air guide structure 75, the air receiving chamber 77 has an opening. The opening of the air receiving chamber 77 faces the direction of the hot air blown out by the hot air generating device 5, that is, the opening of the air receiving chamber 77 faces the wind. During operation, hot air blows in through the opening and is sent out through the air guide structure 75 to form a hot air flow and circulation.

[0037] Specifically, in this embodiment, the end plates 73 are two vertically and equidistantly arranged triangular plates. Preferably, in other embodiments, the end plates 73 are arranged at an angle, and the openings of the two end plates 73 are in an expanded state. In this way, the air collection cavity 77 can better collect hot air to increase air flow.

[0038] like Figure 1 As shown, the hot air generating device 5 includes a hot air furnace 51 and a circulating fan 53. The circulating fan 53 blows the hot air generated by the hot air furnace 51 into the first drying chamber 8. The hot air furnace 51 and the circulating fan 53 generate hot air in the first drying chamber 8 and transfer it to the first drying chamber 9. The material rack 20 is placed in the first drying chamber 8 and the second drying chamber 9. The hot air dries the material placed on the material rack 20.

[0039] In other embodiments, the fruit and vegetable dryer further includes an air distribution plate 10 provided at the air outlet of the hot air generating device 5. The air distribution plate 10 is used to disperse the hot air emitted by the hot air generating device 5, thereby making the hot air in the first drying chamber 8 more uniform, so that the consistency of material drying is better.

[0040] The air distribution plate 10 includes a plate body 101 and an array of evenly distributed ventilation holes 103 formed on the plate body 101. Specifically, the ventilation holes 103 on the plate body 101 are arranged in a circular array with the center of the plate body 101 as the center. Hot air passes through the ventilation holes 103 into the first drying chamber 8, and the hot air is dispersed by the ventilation holes 103, so that the hot air entering the first drying chamber 8 is evenly diffused, the materials on the material rack are more evenly affected by the air, and the materials are dried more consistently.

[0041] See also Figure 4 ,for Figure 1The structure of the wind balancing plate is shown. It should be noted that in order to increase the wind force passing through the ventilation hole 103, the channel of the ventilation hole 103 is improved according to the Bernoulli principle. Specifically, the channel includes an expansion air collection section D0, a transition section D1, an extrusion section D2, and an emission section D3, which are arranged in sequence. The expansion air collection section D0 expands in a trumpet-like manner to collect more wind force. At the same time, the diameter of the extrusion section D2 is smaller than the diameters of the transition section D1 and the emission section D3. In this way, the wind enters from the expansion air collection section D0, transitions through the transition section D1, is extruded through the extrusion section D2, and is emitted from the emission section D3. The flow rate increases after passing through the extrusion section D2, so that the wind force in the emission section D3 is increased. The increase in the wind force of the ventilation hole 103 is achieved through the Bernoulli working principle. Therefore, on the basis of achieving the original wind force dispersion, the flow speed of the wind force is increased, effectively improving the speed of the hot air circulation in the drying chamber, and thus improving the material drying efficiency.

[0042] The fruit and vegetable dryer provided in the embodiment of the present invention introduces the hot air in one drying chamber into another drying chamber evenly by means of the air equalization device 7, so that all chambers form a flowing circulating air. The even hot air can form even and consistent drying conditions for the materials in all drying chambers, so that the materials are dried with good consistency and high drying quality. In addition, there is no need to install the hot air generating device 5 in each drying chamber, which solves the problem of the prior art that a hot air generating device 5 needs to be installed on the side of each drying chamber. The purpose can be achieved by simply arranging the hot air generating device 5, thereby increasing the efficient use of energy, reducing equipment investment, and lowering production costs.

[0043] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A fruit and vegetable drying machine, characterized in that: The invention comprises a drying box, a partition, a hot air generating device and an air distribution device arranged in the drying box, wherein the partition divides the drying box into at least two interconnected drying chambers, the hot air generating device is arranged in at least one of the two drying chambers, and the air distribution device is used to uniformly guide the hot air in the drying chamber where the hot air generating device is arranged to the other drying chamber. The wind distribution device includes a vertical plate, an end plate and an air guide structure, and the three enclose an air receiving cavity. The air guide structure is provided with a plurality of evenly distributed air outlet slots, and the air guide structure evenly guides the hot air collected by the air receiving cavity from the air outlet slots. The air guide structure is a plurality of air guide strips connected to the end plate, and two adjacent air guide strips are spaced apart to form the air outlet slot. The air guide structure further includes a driving device, and each of the air guide strips is driven to swing simultaneously by the driving device. The driving device includes a rotating gear provided at both ends of each of the air guide strips and a movable rack provided on the end plate. The rotating gear is engaged with the movable rack, and the movable rack drives the rotating gear to rotate and thereby drives each of the air guide strips to swing simultaneously. The wind equalizing device further includes a pull rod, the end plates are two oppositely arranged, and the two ends of the pull rod are respectively connected to the two end plates. The invention also includes an air distribution plate provided at the air outlet of the hot air generating device, wherein the air distribution plate is used to disperse the hot air emitted by the hot air generating device. The air balancing plate includes a plate body and ventilation holes evenly distributed in an array on the plate body. The ventilation holes on the plate are arranged in a circular array with the center of the plate as the center. The vent hole comprises an expansion and air collection section (D0), a transition section (D1), an extrusion section (D2) and an emission section (D3) which are arranged in sequence. The expansion and air collection section (D0) expands in a trumpet-like manner, and the diameter of the extrusion section (D2) is smaller than the diameters of the transition section (D1) and the emission section (D3).

2. The fruit and vegetable drying machine according to claim 1, characterized in that: The opening of the air receiving cavity faces the direction of the hot air blown out by the hot air generating device.

3. The fruit and vegetable drying machine according to claim 1, characterized in that: The partition divides the drying box into two drying chambers, namely a first drying chamber and a second drying chamber. The hot air generating device is arranged in the first drying chamber, and the air equalizing device is arranged in the second drying chamber and is arranged at an end away from the hot air generating device.

4. The fruit and vegetable drying machine according to claim 1, characterized in that: The hot air generating device includes a hot air stove and a circulating fan, and the circulating fan blows the hot air generated by the hot air stove into the drying chamber.

Images