Artemisia drying equipment

Abstract

The utility model discloses an artemisia vulgaris drying equipment belongs to artemisia vulgaris drying technical field. A kind of artemisia vulgaris drying equipment, including drying cabinet and the circulation passage and drying area being arranged in drying cabinet, further include: staggered installation is arranged in drying area exhaust plate, and multiple exhaust plate forms "S" shape drying passage, and exhaust hole is equidistantly arranged on exhaust plate, and exhaust hole is communicated with circulation passage, and fixedly installed with guide plate on exhaust plate, guide plate has wave crest and wave trough, and shunt area is formed between guide plate and exhaust plate, and wave crest of guide plate is perpendicular to the exhaust direction of exhaust hole, and guide lug is provided at the bottom of exhaust plate;The utility model uses exhaust plate to cooperate with exhaust hole, on the one hand, improve the utilization rate of hot gas, on the other hand, make artemisia vulgaris dry in the small area that exhaust plate divides, further improve the drying effect of artemisia vulgaris.

Description

Technical Field

[0001] This utility model relates to the field of mugwort drying technology, and in particular to a mugwort drying device. Background Technology

[0002] Fresh mugwort usually needs to be dried using a drying device, mainly for long-term preservation, to prevent mold growth, and to stabilize its active ingredients, thereby better exerting its medicinal, moxibustion, and insect-repelling effects.

[0003] Drying equipment is mainly divided into chain conveyor dryers and box dryers. When using a box dryer, spread the mugwort flat on a drying tray or screen, put it in the drying box, set the temperature and time, start the hot air circulation system, and take it out after drying to avoid high temperature damaging the effective ingredients.

[0004] In existing box-type dryers, mugwort is typically laid flat on multiple parallel drying trays for drying. Its hot air circulation system uses an airflow pattern from top to bottom or bottom to top. However, the stacked structure of the multiple drying trays hinders the uniform flow of hot air, resulting in significant differences in the effect of hot air on mugwort at different heights. Mugwort near the air inlet or outlet can be preferentially and fully contacted by the hot airflow and quickly dehydrated and dried, while mugwort far from the air outlet suffers from poor drying effect due to insufficient penetration and uneven distribution of hot air. This causes the problem of inconsistent drying degree of the overall material. At the same time, the hot air in the outlet area is concentrated and blown directly onto local mugwort for a long time, causing that part of the material to be subjected to high-intensity heat load continuously. It is very easy for the material to become brittle or even charred due to over-dehydration, which further affects the uniformity of drying quality and the effectiveness of the material. Utility Model Content

[0005] The purpose of this invention is to solve the problem of poor drying effect and inconsistent overall material drying degree when using box-type dryers in the prior art, and to propose a mugwort drying device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A mugwort drying device includes a drying box, a circulation channel and a drying zone disposed within the drying box, and further includes: exhaust plates staggered in the drying zone, with multiple sets of exhaust plates forming an "S"-shaped drying channel. The exhaust plates have exhaust holes evenly spaced and connected to the circulation channel. A guide plate is fixedly installed on the exhaust plate, the guide plate having crests and troughs, forming a flow diversion zone between the guide plate and the exhaust plate, and the crests of the guide plate being perpendicular to the exhaust direction of the exhaust holes. A guide protrusion is provided at the bottom of the exhaust plate.

[0008] In order to direct the airflow in the circulation channel toward the upper surface of the mugwort, preferably, the guide protrusion is set in a wave shape, and the guide protrusion has a crest and a trough, with a backflow zone formed at the crest.

[0009] To facilitate heat recovery, preferably, a fan is rotatably installed inside the circulation channel, with the fan's inlet and outlet facing the drying zone and the circulation channel, respectively.

[0010] To provide a heat source for heating the gas, heating wires are symmetrically installed in the circulation channel, and the heating wires are fixedly installed on both sides of the fan.

[0011] To facilitate the placement of mugwort, preferably, a positioning strip is fixedly installed inside the drying channel, and a tray is movably installed on the positioning strip.

[0012] To facilitate the discharge of hot air into the drying zone, preferably, the ratio of the area of ​​the exhaust plate to the total area of ​​the exhaust holes is 2:1.

[0013] Compared with the prior art, this utility model provides a mugwort drying device, which has the following beneficial effects:

[0014] 1. This mugwort drying equipment, through the staggered arrangement of exhaust plates and exhaust holes, creates an "S"-shaped drying channel within the drying zone, effectively improving the utilization rate of hot air. On the other hand, the exhaust plates divide the drying zone into multiple interconnected small areas, and the hot air emitted from the exhaust holes ensures that both the upper and lower areas of the mugwort are dried by hot air, thereby improving the drying effect of the mugwort. This avoids the problem of differential pressure caused by stacked trays obstructing the flow of hot air, as well as the problem of insufficient hot air penetration leading to poor drying effect.

[0015] 2. This mugwort drying equipment uses a guide plate in conjunction with an exhaust port to prevent the gas discharged from the exhaust port from concentrating on a certain area of ​​the mugwort. The guide plate diverts the hot air, thus avoiding the strong impact of the hot gas on the surface of the mugwort when it is discharged. At the same time, the contact area between the diverted hot air and the mugwort is increased, preventing the formation of an air column from directly venting the gas from the exhaust port and contacting the surface of the mugwort. This effectively avoids the problem of hot air being concentrated on a local area of ​​mugwort for a long time, which can lead to excessive dehydration, embrittlement, or even charring.

[0016] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model utilizes an exhaust plate in conjunction with an exhaust hole to improve the utilization rate of hot air and to dry the mugwort in the small area divided by the exhaust plate, thereby further improving the drying effect of the mugwort. Attached Figure Description

[0017] Figure 1This is an isometric structural diagram of an artemisia drying device proposed in this utility model;

[0018] Figure 2 This is a partial structural diagram of an artemisia drying device proposed in this utility model. Figure 1 ;

[0019] Figure 3 This utility model proposes a mugwort drying device. Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a partial structural diagram of an artemisia drying device proposed in this utility model. Figure 2 ;

[0021] Figure 5 This utility model proposes a mugwort drying device. Figure 4 Enlarged structural diagram at point B.

[0022] In the diagram: 1. Drying oven; 2. Circulation channel; 3. Heating wire; 4. Fan; 5. Exhaust plate; 6. Exhaust hole; 7. Guide plate; 8. Guide protrusion; 9. Positioning strip; 10. Tray. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Example:

[0026] Reference Figures 1-5A mugwort drying device includes a drying chamber 1, a circulation channel 2 and a drying zone disposed within the drying chamber 1. A fan 4 is rotatably installed within the circulation channel 2, with the air inlet and outlet of the fan 4 facing the drying zone and the circulation channel 2, respectively. Heating wires 3 are symmetrically installed within the circulation channel 2, and the heating wires 3 are fixedly installed on both sides of the fan 4. A positioning strip 9 is fixedly installed within the drying channel, and a tray 10 is movably installed on the positioning strip 9. The tray 10 has equidistantly arranged mesh holes. Exhaust plates 5 are staggered within the drying zone, forming an "S"-shaped drying channel to extend the residence time of hot air in the drying zone, effectively improving the utilization rate of hot air. At the same time, the "S"-shaped drying channel ensures that the gas flow direction is consistent, resulting in a longer contact time between the hot air and the mugwort. The exhaust plates 5 divide the drying zone into multiple interconnected small areas, further... To improve the drying effect of mugwort and avoid the stacked trays 10 from obstructing gas flow and reducing the penetration effect of hot air, which would lead to poor drying effect, exhaust plates 5 are equipped with equally spaced exhaust holes 6, which are connected to the circulation channel 2. A guide plate 7 is fixedly installed on the exhaust plate 5. The guide plate 7 has crests and troughs, and a diversion zone is formed between the guide plate 7 and the exhaust plate 5. The crests of the guide plate 7 are perpendicular to the exhaust direction of the exhaust holes 6. Through the set guide plate, the hot air is discharged from the exhaust pipe and enters the diversion zone. After contacting the crests of the guide plate 7, the hot air is diverted and flows out from the edge of the guide plate 7. This can prevent the hot air with strong penetrating power from blowing directly onto the mugwort, causing local areas of the mugwort to be in contact with the hot air for a long time, resulting in severe dehydration and problems such as brittleness or even charring. The bottom of the exhaust plate 5 is provided with guide protrusions 8.

[0027] Specifically, by using staggered exhaust plates 5 and exhaust holes 6, an "S"-shaped drying channel is formed in the drying zone, which effectively improves the utilization rate of hot air. On the other hand, the exhaust plates 5 divide the drying zone into multiple interconnected small areas. With the hot air sprayed from the exhaust holes 6, the upper and lower areas of the mugwort can be dried by hot air, thereby improving the drying effect of the mugwort. This avoids the problem of differential pressure on the mugwort at different heights due to the stacking of trays 10, which obstructs the flow of hot air, and the problem of poor drying effect due to insufficient hot air penetration.

[0028] Specifically, the guide plate 7 is used in conjunction with the exhaust hole 6 to prevent the gas discharged from the exhaust hole 6 from concentrating on a certain area of ​​the mugwort. The guide plate 7 diverts the hot air, thereby avoiding the strong impact of the hot gas on the surface of the mugwort when it is discharged. At the same time, the contact area between the diverted hot air and the mugwort is increased, preventing the formation of an air column from directly discharging gas from the exhaust hole 6 and contacting the surface of the mugwort. This effectively prevents the hot air from being concentrated on a local area of ​​the mugwort for a long time, which can lead to excessive dehydration, brittleness, or even charring.

[0029] The guide protrusion 8 is designed in a wave shape, with crests and troughs. A backflow zone is formed at the crest. When the hot air from the exhaust port 6 flows upward and is combined with the hot air flowing along the side of the drying channel, the upward-flowing hot air enters the crest of the guide protrusion 8. At this time, the hot air flowing along the side causes the air in the crest to flow out along the tangent of the trough and blow downward to the surface of the mugwort. This ensures that both the upper and lower layers of the mugwort are fully in contact with the hot air to achieve drying, effectively improving the drying effect of the mugwort.

[0030] The ratio of the area of ​​the exhaust plate 5 to the total area of ​​the exhaust holes 6 is 2:1. The exhaust pipe occupies half of the area of ​​the exhaust plate 5, thereby ensuring the amount of hot air in the drying channel and avoiding the problem of insufficient hot air discharged from the exhaust pipe, which would prolong the drying time and ensure the normal use effect of this application.

[0031] In this invention, the mugwort is first laid flat on top of the tray 10, and the tray 10 is installed in the drying area. Then, the drive motor and heating wire 3 are started, and the fan 4 is activated by the drive motor. At this time, gas enters the circulation channel 2. When the gas passes through the heating wire 3, the flowing gas is heated and converted into hot gas. The hot gas then enters the exhaust plate 5 and is discharged through the exhaust hole 6. The discharged hot gas enters the diversion zone and comes into contact with the guide plate 7. The hot gas enters the crest area of ​​the guide plate 7 and is blocked by the crest. The gas then flows towards the trough, achieving diversion and preventing the highly penetrating hot gas from directly contacting the mugwort on the tray 10, effectively preventing localized contact between the mugwort and the drying area. Prolonged contact with hot air in certain areas leads to excessive dehydration, resulting in localized charring or brittleness of the mugwort. Subsequently, the gas flows upward through the mugwort and enters the crest area of ​​the guide protrusion 8. At this time, the airflow in the drying channel flows towards the opening of the exhaust plate 5. The gas in the crest area is affected by the flowing gas in the drying channel and the increased pressure from the exhaust port 6, causing the hot airflow to flow towards the trough of the guide protrusion 8 and be blown out along the tangent of the trough, so that it contacts the upper layer of the mugwort. This improves the utilization rate of the hot air and avoids the problem of inconsistent drying effects of mugwort at different heights due to the stacking of trays 10 obstructing the flow of hot air, thereby improving the drying effect of the mugwort.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mugwort drying device, comprising a drying chamber (1) and a circulation channel (2) and a drying zone disposed within the drying chamber (1), characterized in that, Also includes: The exhaust plates (5) are staggered and installed in the drying zone, and multiple sets of exhaust plates (5) form an "S" shaped drying channel. Among them, exhaust holes (6) are arranged at equal intervals on the exhaust plate (5), the exhaust holes (6) are connected to the circulation channel (2), a guide plate (7) is fixedly installed on the exhaust plate (5), the guide plate (7) has crests and troughs, a diversion area is formed between the guide plate (7) and the exhaust plate (5), and the crest of the guide plate (7) is perpendicular to the exhaust direction of the exhaust hole (6), and a guide protrusion (8) is provided at the bottom of the exhaust plate (5).

2. The artemisia drying equipment according to claim 1, characterized in that, The guide bump (8) is set in a wave shape, and the guide bump (8) has a peak and a trough, with a backflow zone formed at the peak.

3. The artemisia drying equipment according to claim 1, characterized in that, A fan (4) is rotatably installed in the circulation channel (2), and the air inlet and air outlet of the fan (4) face the drying area and the circulation channel (2) respectively.

4. The artemisia drying equipment according to claim 3, characterized in that, Heating wires (3) are symmetrically installed in the circulation channel (2), and the heating wires (3) are fixedly installed on both sides of the fan (4).

5. The artemisia drying equipment according to claim 1, characterized in that, A positioning strip (9) is fixedly installed inside the drying channel, and a tray (10) is movably installed on the positioning strip (9).

6. The artemisia drying equipment according to claim 1, characterized in that, The ratio of the area of ​​the exhaust plate (5) to the total area of ​​the exhaust hole (6) is 2:1.

Images