Layered hot air circulation structure of dried dendrobium stem machine

Abstract

The utility model relates to the technical field of drying dendrobium, concretely to layered hot air circulation structure of dendrobium dryer, including dryer, support, support sieve plate, first fixed support, first fan, electric heating wire and communicating hole, the inside fixed setting of dryer has the support. Layered hot air circulation structure of this dendrobium dryer, first through the controller of one side of dryer trigger electric heating wire and first fan operation. Electric heating wire releases heat after electrification, rapidly promotes the air temperature of the inside top end of dryer, forms the heat source required by drying, and the first fan is fixed at the top end through the first fixed support, because it is set to be inclined downward, can accurately deliver the hot air generated by electric heating wire downward to the layered support sieve plate.

Description

Technical Field

[0001] This utility model relates to the field of Dendrobium drying technology, specifically to a layered hot air circulation structure for a Dendrobium dryer. Background Technology

[0002] Dendrobium, also known as golden hairpin dendrobium, golden hairpin flower, and thousand-year-old dendrobium, is a plant belonging to the genus Dendrobium in the family Orchidaceae. The stem of Dendrobium is erect, fleshy, thick, and slightly flattened cylindrical. The leaves are leathery and oblong. Racemes emerge from the upper part of the leafy or leafless old stem; the petals are somewhat obliquely broadly ovate, with a green column foot, and the anther cap is purplish-red and conical. The fruit of Dendrobium is a capsule, oblong or pear-shaped, containing numerous tiny seeds.

[0003] Traditionally, Dendrobium is dried by placing it in a single-layer dryer, which not only limits the amount that can be dried at one time, but also easily leads to poor drying results due to uneven distribution of hot air. To address this, we have proposed a layered hot air circulation structure for Dendrobium dryers. Utility Model Content

[0004] The purpose of this invention is to provide a layered hot air circulation structure for a Dendrobium officinale dryer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The tiered hot air circulation structure of the Dendrobium officinale dryer includes a dryer, a support frame, a supporting sieve plate, a first fixed frame, a first fan, an electric heating wire, and a connecting hole. The dryer has two supports fixedly installed inside, with a supporting sieve plate fixed between opposite sides of the two supports. The top of the supporting sieve plate has several sieve holes. Several first fixed frames are fixedly installed at the top of the dryer's interior, and a first fan is fixedly installed at the bottom of the first fixed frames. The first fan is inclined downwards. An electric heating wire is fixedly installed at the top of the dryer's interior, located between the first fans. A connecting hole is provided at the bottom of the support frame.

[0007] The connecting hole is equipped with a second fixing frame, and the middle part of the second fixing frame is equipped with a second fan.

[0008] The bottom of the dryer is fixedly provided with a guide slope, which gradually concaves from the edge to the middle.

[0009] The guide slope has a collection hole at its center, and the dryer has a collection box fixedly installed at its bottom.

[0010] The collection box and the collection hole are connected. A discharge pipe is provided on one side of the collection box, and an electromagnetic valve is fixedly installed inside the discharge pipe.

[0011] The dryer has ventilation holes on both sides, and a filter screen is fixedly installed inside the ventilation holes. A controller is fixedly installed on one side of the dryer.

[0012] The controller is electrically connected to the first fan, the electric heating wire, and the second fan. The front end of the dryer is rotatably connected to a movable door, and the four corners of the bottom of the dryer are rotatably connected to self-locking casters.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The tiered hot air circulation structure of this Dendrobium officinale dryer first triggers the operation of the electric heating wire and the first fan via a controller on one side of the dryer. After being energized, the electric heating wire releases heat, rapidly raising the air temperature at the top of the dryer and creating the heat source required for drying. The first fan, fixed to the top by a first mounting bracket and angled downwards, precisely delivers the hot air generated by the electric heating wire downwards to the tiered support sieve plates. At this point, the Dendrobium officinale spread flat on the support sieve plates directly contacts the hot air. The hot air passes through several sieve holes on the sieve plates, achieving uniform coverage of the upper and lower layers of Dendrobium officinale. Through heat transfer, it efficiently removes moisture from the Dendrobium officinale, completing the initial drying process. The angled first fan not only transfers hot air and promotes circulation but also directs the hot air towards the top sieve plates, improving the practicality of the device.

[0015] 2. The tiered hot air circulation structure of this Dendrobium dryer allows the temperature of the hot air passing through the material layer to gradually decrease as drying continues, while simultaneously absorbing moisture from the Dendrobium to form partially humid air. At this point, a second fan in the connecting hole at the bottom of the support frame starts working, drawing the lower layer of cold and humid air upwards, allowing it to flow back through the electric heating wire at the top for reheating, forming a complete closed-loop hot air circulation. During this process, the ventilation holes on both sides of the dryer balance the internal air pressure, expelling excess humid air and replenishing fresh air, while the filters in the ventilation holes prevent external impurities from entering and contaminating the Dendrobium. After drying is complete, the Dendrobium fragments mixed with water droplets will collect along the bottom guide slope to the central collection hole, enter the collection box for temporary storage, and be discharged as needed through the solenoid valve of the discharge pipe. This design improves the drying efficiency of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the dryer of this utility model;

[0018] Figure 3 This utility model Figure 2Enlarged view of point A in the middle;

[0019] Figure 4 This utility model Figure 2 Enlarged diagram of point B in the middle.

[0020] In the diagram: 1. Dryer; 2. Support frame; 3. Supporting sieve plate; 4. First fixed frame; 5. First fan; 6. Electric heating wire; 7. Connecting hole; 8. Second fixed frame; 9. Second fan; 10. Guide slope; 11. Collection hole; 12. Collection box; 13. Discharge pipe; 14. Ventilation hole; 15. Filter screen; 16. Controller; 17. Movable door; 18. Self-locking casters. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 - Figure 4 As shown, this utility model provides a technical solution:

[0023] The tiered hot air circulation structure of the Dendrobium officinale dryer includes a dryer 1, a support frame 2, a supporting sieve plate 3, a first fixed frame 4, a first fan 5, an electric heating wire 6, and a connecting hole 7. The dryer 1 is equipped with two supports 2, and a supporting sieve plate 3 is fixed between the opposite sides of the two supports 2. The top of the supporting sieve plate 3 has several sieve holes. The top of the dryer 1 is equipped with several first fixed frames 4, and the bottom of the first fixed frames 4 is equipped with a first fan 5, which is inclined downwards. The top of the dryer 1 is equipped with an electric heating wire 6, which is located between the first fans 5. The bottom of the support 2 has a connecting hole 7.

[0024] The support frame 2 is connected to the inner wall of the dryer 1 by full welding. After welding, the weld points are ground to remove burrs and prevent scratches on the support screen plate 3 or operators. The surface of the support frame 2 needs to be galvanized to enhance rust resistance and adapt to the humid and hot environment that may exist inside the dryer 1.

[0025] A second fixed frame 8 is fixedly installed inside the connecting hole 7. A second fan 9 is fixedly installed in the middle of the second fixed frame 8. A guide slope 10 is fixedly installed at the bottom of the dryer 1. The guide slope 10 gradually concaves from the edge to the middle. A collection hole 11 is opened at the center of the guide slope 10. A collection box 12 is fixedly installed at the bottom of the dryer 1. The collection box 12 is connected to the collection hole 11. A discharge pipe 13 is opened on one side of the collection box 12. An electromagnetic valve is fixedly installed inside the discharge pipe 13. Ventilation holes 14 are opened on both sides of the dryer 1. A filter screen 15 is fixedly installed inside the ventilation hole 14. A controller 16 is fixedly installed on one side of the dryer 1. The controller 16 is electrically connected to the first fan 5, the electric heating wire 6, and the second fan 9. A movable door 17 is rotatably connected to the front end of the dryer 1. Self-locking universal wheels 18 are rotatably connected to the four corners of the bottom of the dryer 1.

[0026] The controller 16 is connected to various components via wires, which is a mature existing technology. It connects to the fan, solenoid valve, etc., and also makes it easy for operators to clearly view parameters such as temperature and fan speed. An instruction label is affixed to the surface of the controller 16 to guide operators on proper use.

[0027] In this embodiment, the layered hot air circulation structure of the Dendrobium officinale dryer first triggers the operation of the electric heating wire 6 and the first fan 5 via the controller 16 on one side of the dryer 1. The electric heating wire 6 releases heat after being energized, rapidly raising the air temperature at the top of the dryer 1 to form the heat source required for drying. The first fan 5, fixed to the top by the first fixing frame 4 and inclined downwards, precisely delivers the hot air generated by the electric heating wire 6 downwards to the layered support sieve plate 3. At this time, the Dendrobium officinale spread flat on the support sieve plate 3 directly contacts the hot air. The hot air passes through several sieve holes on the sieve plate, achieving uniform coverage of the upper and lower layers of Dendrobium officinale. Through heat transfer, it efficiently removes the moisture inside the Dendrobium officinale, completing the initial drying process. The inclined first fan 5 not only transfers hot air and promotes circulation but also directs the hot air towards the top sieve plate, improving the practicality of the device. Then, as drying continues, the temperature of the hot air passing through the material layer gradually decreases, and it absorbs moisture from the Dendrobium officinale, forming partially humid hot air. At this time, the second fan 9 in the bottom connecting hole 7 of the support 2 starts to work, drawing the cold and humid air from the lower layer upwards, allowing it to flow back through the electric heating wire 6 at the top for heating, forming a complete hot air circulation closed loop. During this period, the ventilation holes 14 on both sides of the dryer 1 will balance the internal air pressure, expel excess humid air and replenish fresh air, while the filter screen 15 in the ventilation holes 14 can prevent external impurities from entering and contaminating the dendrobium. After drying, the dendrobium fragments mixed with water droplets will gather along the bottom guide slope 10 to the central collection hole 11, enter the collection box 12 for temporary storage, and be discharged as needed through the solenoid valve of the discharge pipe 13.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A layered hot air circulation structure for a Dendrobium officinale dryer, comprising a dryer (1), a support frame (2), a supporting sieve plate (3), a first fixed frame (4), a first fan (5), an electric heating wire (6), and a connecting hole (7), characterized in that: The dryer (1) is fixedly provided with a bracket (2), and there are two brackets (2). A support sieve plate (3) is fixedly provided between the opposite sides of the two brackets (2). The top of the support sieve plate (3) is provided with several sieve holes. The top of the dryer (1) is fixedly provided with several first fixed frames (4). The bottom of the several first fixed frames (4) is fixedly provided with a first fan (5). The first fan (5) is inclined downward. The top of the dryer (1) is fixedly provided with an electric heating wire (6). The electric heating wire (6) is located between the first fans (5). The bottom of the bracket (2) is provided with a connecting hole (7).

2. The layered hot air circulation structure of the Dendrobium officinale dryer according to claim 1, characterized in that: A second fixing frame (8) is fixedly installed inside the connecting hole (7), and a second fan (9) is fixedly installed in the middle of the second fixing frame (8).

3. The layered hot air circulation structure of the Dendrobium officinale dryer according to claim 2, characterized in that: The bottom of the dryer (1) is fixedly provided with a guide slope (10), which gradually concaves from the edge to the middle.

4. The layered hot air circulation structure of the Dendrobium officinale dryer according to claim 3, characterized in that: A collection hole (11) is provided at the center of the guide slope (10), and a collection box (12) is fixedly provided at the bottom of the dryer (1).

5. The layered hot air circulation structure of the Dendrobium officinale dryer according to claim 4, characterized in that: The collection box (12) and the collection hole (11) are connected. A discharge pipe (13) is provided on one side of the collection box (12). An electromagnetic valve is fixedly installed inside the discharge pipe (13).

6. The layered hot air circulation structure of the Dendrobium officinale dryer according to claim 5, characterized in that: The dryer (1) has ventilation holes (14) on both sides, and a filter screen (15) is fixedly installed inside the ventilation holes (14). A controller (16) is fixedly installed on one side of the dryer (1).

7. The layered hot air circulation structure of the Dendrobium officinale dryer according to claim 6, characterized in that: The controller (16) is electrically connected to the first fan (5), the electric heating wire (6), and the second fan (9). The front end of the dryer (1) is rotatably connected to a movable door (17), and the bottom four corners of the dryer (1) are rotatably connected to self-locking casters (18).

Images