A type of air dryer for processing bamboo leaves

Abstract

This utility model belongs to the field of bamboo leaf air drying technology and discloses a bamboo leaf processing air dryer, including an insulated box. The insulated box has four chambers arranged from top to bottom. Multiple inclined air outlets are located on the left side of each chamber. The angle between each inclined air outlet and the horizontal plane is 15 degrees, and the airflow direction is downwards from left to right. The air inlets of the multiple inclined air outlets are connected to a first conveying air duct. Due to the arrangement of the chambers, this utility model allows for the individual air drying of bamboo leaves on trays within multiple chambers, achieving uniform airflow across different trays. The air drying process between different chambers does not interfere with each other. Because the airflow from the air outlets of different chambers is the same, the bamboo leaves on different trays are dried to the same degree, enabling uniform drying of bamboo leaves on multiple trays and improving the quality of bamboo leaf drying.

Description

Technical Field

[0001] This utility model belongs to the field of bamboo leaf air drying technology, specifically a bamboo leaf processing air dryer. Background Technology

[0002] Reed leaves, the large leaves of plants such as bamboo, are prized for their size, resilience, and unique fragrance, making them the ideal material for wrapping zongzi (sticky rice dumplings). They carry significant cultural meaning in the food culture. Freshly picked reed leaves contain a large amount of moisture. If not dried promptly, this moisture can breed mold and bacteria during storage, leading to mold, rot, and foul odor, rendering the leaves unusable. However, air-drying the reed leaves during processing effectively reduces their moisture content, inhibits the growth and reproduction of microorganisms, and greatly extends their shelf life.

[0003] In industry, air dryers are commonly used to dry bamboo leaves. One type, the box-type hot air circulating air dryer, uses a fan to force heated air to circulate through layers of bamboo leaves. The hot air carries away moisture, and the humid air is either discharged or partially recycled. However, existing air dryers have a single-duct design, usually located at the top or bottom of the dryer. Because the dryer has a multi-tiered tray design, bamboo leaves on trays closer to the air outlet dry faster, while those further away dry slower. This can easily lead to uneven drying levels on different trays, affecting the drying quality. Furthermore, the air outlets in existing air dryers are usually vertical, blowing air only onto one surface of the bamboo leaves, leaving the other surface dry. This results in lower drying efficiency on the other surface, causing uneven drying on the top and bottom surfaces and impacting the overall drying quality. Therefore, improvements are needed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the problems mentioned in the background art, this utility model provides a bamboo leaf drying machine, which has the advantages of allowing bamboo leaves on multi-layer trays to receive air evenly and allowing bamboo leaves to receive air evenly on both sides.

[0006] In this system, multiple chambers are set up to individually air-dry the bamboo leaves on the trays, ensuring that the bamboo leaves on different trays are evenly exposed to air. The air drying between different chambers will not interfere with each other. Since the air volume of the air outlets of different chambers is the same, the bamboo leaves on different trays are dried to the same degree. This enables the bamboo leaves on multi-layer trays to be dried evenly, thus improving the quality of bamboo leaves dried by the air dryer.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a drying machine for processing bamboo leaves, including an insulated box, wherein the interior of the insulated box has four chambers from top to bottom;

[0009] Multiple inclined air outlets are provided on the left side of the chamber. The angle between the inclined air outlets and the horizontal plane is 15 degrees and the air outlet direction is downward from left to right. The air inlets of the multiple inclined air outlets are connected to the first conveying air duct. Return air outlets are provided on the right side of the four chambers. The air outlets of the four return air outlets are connected to the second conveying air duct.

[0010] Preferably, the chamber is in the shape of a right trapezoid, and the angle between the inclined surface of the chamber and the horizontal plane is 15 degrees.

[0011] Preferably, a support tray bracket is installed on both sides of the interior of the chamber, and a perforated tray adapted to the support tray bracket is placed on the upper surface of the two support tray brackets. The inclined air outlet is located above the corresponding perforated tray, and the return air outlet is located below the corresponding perforated tray.

[0012] Preferably, a centrifugal fan, an electric heating wire air heater, and a condenser dehumidifier are installed on the left side of the insulation box. A first conveying pipe is installed between the air outlet of the electric heating wire air heater and the air inlet of the first conveying air duct, and a second conveying pipe is installed between the air inlet of the condenser dehumidifier and the air outlet of the second conveying air duct.

[0013] Preferably, the air outlet of the centrifugal fan is connected to the air inlet of the electric heating wire air heater through a pipe, and the air inlet of the centrifugal fan is connected to the air outlet of the condenser dehumidifier through another pipe, and the water outlet of the condenser dehumidifier is equipped with a drain pipe.

[0014] Preferably, the front of the insulated box is rotatably connected to four rotating doors.

[0015] Preferably, mechanically braked casters are installed at all four corners of the bottom of the insulated box.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. Due to the design of the chambers, this utility model allows for the separate drying of bamboo leaves on different trays by multiple chambers, ensuring uniform airflow to the bamboo leaves on different trays. The drying process between different chambers does not interfere with each other. Since the airflow from the air outlets of different chambers is the same, the bamboo leaves on different trays are dried to the same degree, achieving uniform drying of bamboo leaves on multiple trays and improving the quality of bamboo leaves dried by the air dryer.

[0019] 2. Due to the inclined air outlet of this utility model, multiple inclined air outlets are used to air dry the bamboo leaves, so that both sides of the bamboo leaves can be evenly exposed to air. When blowing air onto the bamboo leaves, the shape of the bamboo leaves will generate two components of air: vertical air and horizontal air, which will blow on the upper and lower sides of the bamboo leaves respectively, so that both sides of the bamboo leaves can be evenly dried, thus improving the drying quality of bamboo leaves by the air dryer. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 for Figure 1 Schematic diagram of the internal structure of the insulation box;

[0022] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0023] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point B.

[0024] In the diagram: 1. Insulated box; 2. Chamber; 3. Inclined air outlet; 4. First conveying air duct; 5. Return air duct outlet; 6. Second conveying air duct; 7. Supporting tray bracket; 8. Perforated tray; 9. Centrifugal fan; 10. Electric heating wire air heater; 11. Condensation dehumidifier; 1101. Drain pipe; 12. First conveying pipe; 13. Second conveying pipe; 14. Revolving door; 15. Mechanically braked casters. Detailed Implementation

[0025] 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.

[0026] like Figures 1 to 4 As shown, this utility model provides a bamboo leaf drying machine, including an insulated box 1, with four chambers 2 arranged from top to bottom inside the insulated box 1. By setting multiple chambers 2 to dry the bamboo leaves on the trays individually, the bamboo leaves on different trays are evenly exposed to air, and the drying between different chambers 2 will not interfere with each other. Since the air volume of the air outlet of the air duct of different chambers 2 is the same, the bamboo leaves on different trays are dried to the same degree, so the bamboo leaves on multi-layer trays can be dried evenly, thus improving the quality of bamboo leaves dried by the drying machine.

[0027] Multiple inclined air outlets 3 are provided on the left side of chamber 2. The angle between the inclined air outlets 3 and the horizontal plane is 15 degrees, and the air outlet direction is downward from left to right. The air inlets of the multiple inclined air outlets 3 are connected to the first conveying air duct 4. Return air outlets 5 are provided on the right side of each of the four chambers 2. The air outlets of the four return air outlets 5 are connected to the second conveying air duct 6. The bamboo leaves are dried by setting up multiple inclined air outlets 3. This design ensures that both sides of the bamboo leaves are evenly exposed to air. When the bamboo leaves are blown, the shape of the leaves generates two components of airflow: vertical and horizontal. These components blow air onto the upper and lower sides of the leaves respectively, ensuring even drying on both sides and improving the quality of the dried bamboo leaves. The inclined air outlet 3, being relatively narrow, generates a high flow velocity under air pressure, which quickly removes moisture from the surface of the bamboo leaves, further improving the drying efficiency.

[0028] like Figure 2 As shown, the shape of chamber 2 is a right trapezoid, and the angle between the inclined surface of chamber 2 and the horizontal plane is 15 degrees. By setting the special spatial structure of chamber 2, the resistance generated by the air flow inside chamber 2 can be reduced, the airflow speed during air circulation can be increased, and the drying efficiency of bamboo leaves can be further improved.

[0029] like Figure 2 As shown, support tray brackets 7 are installed on both sides of the interior of chamber 2. Perforated trays 8 that are adapted to support tray brackets 7 are placed on the upper surface of the two support tray brackets 7. The inclined air outlet 3 is located above the corresponding perforated tray 8, and the return air outlet 5 is located below the corresponding perforated tray 8. By setting the support tray brackets 7 to support the perforated tray 8, the perforated tray 8 can be moved quickly, making it convenient to replace the bamboo leaves on the tray.

[0030] like Figure 1 As shown, a centrifugal fan 9, an electric heating wire air heater 10, and a condenser dehumidifier 11 are installed on the left side of the insulated box 1. A first conveying pipe 12 is installed between the air outlet of the electric heating wire air heater 10 and the air inlet of the first conveying air duct 4. A second conveying pipe 13 is installed between the air inlet of the condenser dehumidifier 11 and the air outlet of the second conveying air duct 6. The air outlet of the centrifugal fan 9 is connected to the air inlet of the electric heating wire air heater 10 through a pipe. The air inlet of the centrifugal fan 9 is connected to the air outlet of the condenser dehumidifier 11 through another pipe. A drain pipe 1101 is installed at the water outlet of the condenser dehumidifier 11. By setting the electric heating wire air heater 10 and the condenser dehumidifier 11, the functions of heating and dehumidifying the air inside the dryer are realized respectively. Under the operation of the centrifugal fan 9, the circulation of air inside the dryer can be guaranteed. Its closed environment can reduce heat loss, improve energy utilization efficiency, and help save resources and protect the environment.

[0031] like Figure 1 As shown, the front of the insulated box 1 is rotatably connected to four rotating doors 14. The rotating doors 14 facilitate the opening of the air dryer and the operation of the internal trays.

[0032] like Figure 1 As shown, mechanically braked casters 15 are installed at the four corners of the bottom of the insulated box 1. The mechanically braked casters 15 enable the dryer to move freely on the ground, improving the convenience of moving and carrying the dryer. The mechanically braked casters 15 themselves are mechanically braked. By operating the pedals installed on the mechanically braked casters 15, the rollers and shafts of the mechanically braked casters 15 are fixed, preventing movement when the dryer is working and improving stability.

[0033] Working principle and usage process of this utility model:

[0034] During the circulating air drying of bamboo leaves, the hot and humid air is first dehumidified by the condenser dehumidifier 11. The water generated from the air separation is discharged from the dryer through the drain pipe 1101. Then, under the operation of the centrifugal fan 9, the dry air enters the interior of the electric heating wire air heater 10. After being heated by the electric heating wire air heater 10, the air temperature reaches a suitable drying temperature. Then, the high-temperature dry air enters the interior of the first conveying duct 4 through the first conveying pipe 12, and then exits from multiple inclined air outlets 3, entering different chambers 2. Since the drying between different chambers 2 does not interfere with each other, the bamboo leaves on different trays are dried to the same degree, achieving multi-layer tray drying of bamboo leaves. The leaves can be dried evenly, improving the quality of drying the bamboo leaves in the air dryer. The air coming out of the inclined air outlet 3 will generate high-speed, high-temperature dry air at an angle of 15 degrees to the horizontal plane. When the air comes into contact with the edge of the bamboo leaves on the perforated tray 8, it will generate two components of air: vertical air and horizontal air. These components blow on the upper and lower surfaces of the bamboo leaves, ensuring that both sides of the bamboo leaves are evenly exposed to air, thus improving the quality of drying the bamboo leaves in the air dryer. During the blowing, the air will carry away the moisture on the surface of the bamboo leaves, achieving the drying of the bamboo leaves. The air will become humid and hot air, and then enter the interior of the second conveying air duct 6 through the four return air outlets 5. After passing through the second conveying pipe 13, it will return to the interior of the condenser dehumidifier 11, and so on, realizing the cyclic drying of the bamboo leaves by the air dryer.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drying machine for processing bamboo leaves, comprising an insulated box (1), characterized in that: The interior of the insulated box (1) has four chambers (2) from top to bottom; Multiple inclined air outlets (3) are provided on the left side of the chamber (2). The angle between the inclined air outlets (3) and the horizontal plane is 15 degrees and the air outlet direction is downward from left to right. The air inlets of the multiple inclined air outlets (3) are connected to the first conveying air duct (4). Return air outlets (5) are provided on the right side of the four chambers (2). The air outlets of the four return air outlets (5) are connected to the second conveying air duct (6).

2. The air dryer for processing bamboo leaves according to claim 1, characterized in that: The chamber (2) is in the shape of a right trapezoid, and the angle between the inclined surface of the chamber (2) and the horizontal plane is 15 degrees.

3. The air dryer for processing bamboo leaves according to claim 1, characterized in that: Both sides of the interior of the chamber (2) are equipped with support tray brackets (7). The upper surfaces of the two support tray brackets (7) are jointly placed with perforated trays (8) that are compatible with the support tray brackets (7). The inclined air outlet (3) is located above the corresponding perforated tray (8), and the return air outlet (5) is located below the corresponding perforated tray (8).

4. The air dryer for processing bamboo leaves according to claim 1, characterized in that: A centrifugal fan (9), an electric heating wire air heater (10), and a condenser dehumidifier (11) are installed on the left side of the insulated box (1). A first conveying pipe (12) is installed between the air outlet of the electric heating wire air heater (10) and the air inlet of the first conveying air duct (4). A second conveying pipe (13) is installed between the air inlet of the condenser dehumidifier (11) and the air outlet of the second conveying air duct (6).

5. A bamboo leaf drying machine according to claim 4, characterized in that: The air outlet of the centrifugal fan (9) is connected to the air inlet of the electric heating wire air heater (10) through a pipe, and the air inlet of the centrifugal fan (9) is connected to the air outlet of the condenser dehumidifier (11) through another pipe. The water outlet of the condenser dehumidifier (11) is equipped with a drain pipe (1101).

6. A bamboo leaf drying machine according to claim 1, characterized in that: The front of the insulated box (1) is rotatably connected to four rotating doors (14).

7. A drying machine for processing bamboo leaves according to claim 1, characterized in that: Mechanically braked casters (15) are installed at the four corners of the bottom of the insulated box (1).

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