Tobacco moisture removing and drying machine
By designing a tobacco dehumidification dryer, and utilizing a rotating clamping structure and hot air blowing, the problem of uneven heating at the bottom of tobacco during flat drying was solved, resulting in a more efficient tobacco drying effect.
Patent Information
- Application Number
- CN202520136633.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-01-20
AI Technical Summary
In the current tobacco drying process, the tobacco is laid flat to dry, which results in uneven heating at the bottom, creating drying dead spots and reducing drying efficiency.
Design a tobacco dehumidification and drying machine, which adopts components such as casters, ventilation hood, electric fan, heating tube, and drying box. It achieves all-round drying of tobacco through a rotating clamping structure, and uses electric fan and heating tube to blow hot air. Combined with the rotation of mesh bottom and top mesh plates, it achieves uniform heating.
It improves the uniformity and efficiency of tobacco drying, avoids drying dead spots, and enhances the overall drying effect.
Smart Images
Figure CN223958314U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dryers, and more particularly to a tobacco dehumidification dryer. Background Technology
[0002] Tobacco is an annual or short-lived perennial herb with stems 0.7-2 meters tall, slightly woody at the base, and covered with glandular hairs throughout. Tobacco processing requires dehumidification and drying.
[0003] Currently, when drying tobacco, most methods involve laying it flat to air dry. While air drying has a certain drying effect, keeping the tobacco in place during the drying process prevents the bottom tobacco from being heated evenly, creating drying dead spots and reducing drying efficiency.
[0004] Therefore, in response to the existing method of directly laying tobacco flat for sun drying, which results in uneven heating of the tobacco at the bottom and the presence of drying dead zones, a tobacco dehumidification and drying machine can be designed to solve the above problems. Utility Model Content
[0005] To overcome the shortcomings of the current method of directly laying tobacco flat for drying, which has certain drying effects, the tobacco is kept in place during the drying process, the tobacco at the bottom cannot be heated evenly, there are drying dead spots, and the drying efficiency is reduced.
[0006] The technical solution of this utility model is as follows: a tobacco dehumidification and drying machine, comprising casters, a ventilation hood, an electric fan, a heating tube, a drying chamber, a connecting plate, handles, a water tank, a fixed frame, a rotating motor, a rotating shaft, a track, a connecting strip, a fixed bottom mesh plate, a wedge groove, a rotating top mesh plate, and a wedge insert. A ventilation hood is provided at the upper end of the casters, an electric fan is installed inside the ventilation hood, a heating tube is installed on one side of the electric fan, and a drying chamber is installed on one side of the heating tube. A connecting plate is provided at the front end of the drying chamber, handles are provided on both sides of the connecting plate, a water tank is provided at the rear end of the connecting plate, a fixed frame is provided between the handles, a rotating motor is installed on the fixed frame, a rotating shaft is driven to the rear end of the rotating motor, a track is provided outside the rotating shaft, a connecting strip is provided on the rotating shaft, a fixed bottom mesh plate is provided at the rear end of the connecting strip, a wedge groove is provided on the fixed bottom mesh plate, a rotating top mesh plate is rotatably connected to the upper end of the fixed bottom mesh plate, and a wedge insert is provided at the lower end of the rotating top mesh plate.
[0007] Preferably, a rotatable clamping drying structure is used to dry the tobacco in all directions.
[0008] Preferably, four casters are provided, with two casters on the same side located at the lower end of the same ventilation hood.
[0009] Preferably, the ventilation hood is provided with ventilation slots, and there are two ventilation hoods arranged symmetrically. One ventilation hood is equipped with three electric fans and one heating pipe, and the other ventilation hood is equipped with three electric fans. The electric fans on both sides are arranged in the same direction.
[0010] Preferably, the drying box is designed as a hollow rectangle, and ventilation slots are provided on both sides of the drying box.
[0011] Preferably, the connecting plate, handle, water tank, fixing frame, rotating motor, rotating shaft, track, connecting strip, fixed bottom mesh plate, wedge groove, rotating top mesh plate and wedge insert are set as a whole and are slidably connected to the drying box.
[0012] Preferably, the wedge groove and the wedge insert are configured as a wedge connection.
[0013] Preferably, the fixed frame, rotating motor, rotating shaft, connecting strip, fixed bottom mesh plate, wedge groove, rotating top mesh plate and wedge insert are set as one group, and the rotating shaft, connecting strip, fixed bottom mesh plate, wedge groove, rotating top mesh plate and wedge insert are set as another group. There are three groups in this arrangement. The two rotating shafts on the same side are connected by the upper and lower tracks through the track connecting shafts, and the two rotating shafts at the lower end are connected by the track parallel connecting shafts.
[0014] The beneficial effects of this utility model are:
[0015] 1. The installation of casters facilitates the movement of the entire device. The drying chamber provides the drying space, while the ventilation hood protects the electric fan. When the fan starts, it blows the air heated by the heating elements to remove moisture and achieve drying. Water from the tobacco falls into a water tank for storage. A connecting plate is fixed to a handle, which facilitates the movement of the connecting plate and water tank within the drying chamber. A connecting strip is fixed to the bottom mesh plate and rotatably connects to the top mesh plate. Tobacco is laid flat between the bottom and top mesh plates. Since both the bottom and top mesh plates are mesh-like, ventilation is achieved. Wedge-shaped grooves and wedge-shaped inserts facilitate quick opening and closing. A fixed frame secures the rotating motor. When the motor starts, it drives the rotating shaft to rotate. The track is connected to the shaft, thereby driving the four sets of fixed bottom and top mesh plates to rotate, achieving uniform heating and improving drying efficiency. It overcomes the shortcomings of existing methods that mostly involve directly laying tobacco flat for sun drying and dehumidification. While sun drying has a certain drying effect, the tobacco remains fixed during the drying process, and the tobacco at the bottom cannot be heated evenly, resulting in drying dead spots and reduced drying efficiency. Attached Figure Description
[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the tobacco dehumidification and drying machine of this utility model;
[0017] Figure 2 The diagram shown is of the drying box of the tobacco dehumidification and drying machine of this utility model;
[0018] Figure 3 The diagram shown is of the water tank of the tobacco dehumidification and drying machine of this utility model;
[0019] Figure 4 The diagram shown is a fixed bottom mesh plate of the tobacco dehumidification and drying machine of this utility model;
[0020] Explanation of reference numerals in the attached drawings: 1. Caster wheel; 2. Ventilation hood; 3. Electric fan; 4. Heating element; 5. Drying oven; 6. Connecting plate; 7. Handle; 8. Water tank; 9. Fixing frame; 10. Rotating motor; 11. Rotating shaft; 12. Track; 13. Connecting strip; 14. Fixed bottom mesh plate; 15. Wedge groove; 16. Rotating top mesh plate; 17. Wedge insert. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Among the currently discovered and implementable techniques, the botanical morphological characteristics are as follows: Tobacco is an annual or short-lived perennial herb with stems 0.7-2 meters tall, slightly woody at the base, and covered with glandular hairs throughout. Leaves are oblong-lanceolate, lanceolate, oblong, or ovate, with an acuminate apex and a gradually narrowed base that forms an auricle and semi-amplexicaul shape, 10-3 (~70) cm long and 8-15 (~30) cm wide, with inconspicuous or winged petioles. Inflorescences are terminal, paniculate, and multiflora, with pedicels 5-20 mm long. The calyx is tubular or tubular-campanulate, with triangular-lanceolate lobes. The corolla is pale red, funnel-shaped, with a paler tube, 3.5-5 cm long. Of the stamens, one is significantly shorter than the other four, not protruding from the throat of the corolla, and the filaments are hairy at the base. The fruit is a capsule, ovoid or oblong, with round or broadly oblong seeds, brown in color.
[0023] Growth Habits: Tobacco is a light-loving and warm-loving crop, suitable for planting in light loam and sandy loam. It prefers a warm environment, with an optimal growth temperature of 25℃-28℃. It needs sufficient light, with 8-10 hours of light per day being ideal. It grows best in areas with sufficient but not too intense sunlight. Excessive sunlight will scorch the leaves.
[0024] Cultivation techniques
[0025] Variety selection: Based on the actual geographical environment, select superior varieties that have good resistance and excellent quality, which will help improve the yield and quality of tobacco.
[0026] Site selection and land preparation: Light loam and sandy loam are ideal soils for tobacco cultivation, with a pH value of 5.5-6.5, rich in organic matter, and able to meet the growth requirements of tobacco. Before transplanting, the planting site needs to be prepared by deep plowing, breaking up clods, leveling the land, and ridging, etc., to loosen the topsoil, remove weeds, and improve the soil's water, fertilizer, air, and heat conditions, and combine this with the application of base fertilizer to ensure the soil and fertilizer are well integrated.
[0027] Intertillage and hilling: Intertillage is mainly carried out before the tobacco plants are in vigorous growth. After the vigorous growth period, it should be carried out after rain, irrigation, or when there are weeds. The depth of intertillage should follow the principle of shallow at first and then deep, and deep in the middle and shallow on both sides. Generally, intertillage is carried out three times. Hilling is often carried out in conjunction with intertillage. The requirements are different in tobacco-growing areas in the north and south. It mainly involves piling the soil from the furrows between the rows of tobacco plants onto the base of the tobacco plants and the ridges during the field growth period to form ridges or raised beds.
[0028] Water and fertilizer management: Water supply should be reduced in the early and late stages of tobacco cultivation, while sufficient water should be maintained in the middle stage. If the maximum water holding capacity of the topsoil drops to less than 60%, irrigation is necessary. Scientific fertilization is also crucial. Nitrogen fertilizer should be used scientifically, and phosphorus and potassium fertilizers should be rationally proportioned to achieve balanced fertilization. At the same time, attention should be paid to increasing the application of trace elements such as zinc, boron, and copper to coordinate soil nutrients and ensure healthy tobacco growth.
[0029] Pest and disease control: Major tobacco diseases include mosaic virus, black shank, leaf spot, anthracnose, damping-off, and seedling blight. Agricultural control methods include seed disinfection, soil disinfection, and removal of diseased plants. Chemical control can also be achieved using Bordeaux mixture, captan, mancozeb, metalaxyl, and thiophanate-methyl wettable powder. Common pests include snails, cutworms, leaf worms, small cutworms, mole crickets, and yellow ants. Control can be achieved using chemical agents such as trichlorfon, imidacloprid, and pirimicarb wettable powder, or physical control methods such as yellow sticky traps, pheromone traps, food traps, and light traps. Biological control can also be achieved by utilizing natural enemies of pests such as tobacco aphid wasps, pine caterpillar wasps, and ladybugs.
[0030] Functional value
[0031] Medicinal value: Tobacco contains a variety of alkaloids, proteins, lipids and other substances, which have the effects of promoting qi circulation and relieving pain, drying dampness and killing insects, reducing swelling and detoxifying. It can be used to treat indigestion and bloating, qi stagnation and pain, joint pain, carbuncles and boils, scabies and eczema, insect bites, sprains and contusions, etc.
[0032] Economic Value: Tobacco is an important economic crop. China ranks first in the world in terms of tobacco acreage and total output, making a significant contribution to national development. As a model plant, it is also an important tool in biological science research, playing a significant role in genetics, breeding, physiology, biochemistry, and post-harvest metabolism.
[0033] Tobacco Products and Harms
[0034] Tobacco products: Internationally, commercial tobacco leaves are classified into seven categories based on variety and processing methods: flue-cured tobacco, burley tobacco, aromatic tobacco, light-cured tobacco, dark-cured tobacco, dark-cured tobacco, and cigar wrapper tobacco. In China, cultivated tobacco is mainly divided into six types: flue-cured tobacco, sun-cured tobacco, air-cured tobacco, burley tobacco, aromatic tobacco, and yellow jasmine tobacco. Chinese tobacco products mainly include six types: cigarettes (i.e., paper cigarettes), cigars, tobacco wrappers, pipe tobacco, chewing tobacco, and snuff, with cigarettes being the most important type.
[0035] Health hazards: The combustion of tobacco products during smoking produces smoke containing harmful components such as nicotine, tar, polycyclic aromatic hydrocarbons, carbon monoxide, hydrogen cyanide, nitrogen oxides, formaldehyde, ammonia, and acrolein. These can cause various cancers, including lung cancer, laryngeal cancer, oral cancer, pharyngeal cancer, esophageal cancer, pancreatic cancer, kidney cancer, and bladder cancer. Tobacco is also closely related to diseases and health problems such as lung cancer (e.g., chronic bronchitis, pulmonary heart disease, respiratory tuberculosis), cardiovascular and cerebrovascular diseases, digestive system diseases, osteoporosis, and decreased fertility.
[0036] Tobacco dehumidifying dryer
[0037] Working principle
[0038] Tobacco dehumidification dryers primarily remove moisture from tobacco by heating air and using a ventilation system. They utilize the energy of hot air to evaporate the moisture in the tobacco, and then the dehumidification system removes the water vapor-containing air from the equipment. The temperature of the hot air is generally adjusted based on factors such as the type of tobacco and its initial moisture content, typically ranging from 40-60℃. This temperature range ensures effective moisture evaporation without damaging the quality of the tobacco.
[0039] The ventilation system plays a crucial role. It includes air inlets and outlets. The inlets evenly distribute dry, hot air to the drying area where the tobacco is located, while the outlets expel humid air. Airflow speed is also important during the drying process; a suitable airflow velocity keeps the humidity around the tobacco at a low level, accelerating moisture evaporation. Generally, the airflow velocity is controlled at around 1-3 m / s to ensure that water vapor on the tobacco surface is promptly removed.
[0040] Structural composition
[0041] Heating systems typically consist of electric heaters, gas heaters, or steam heaters. Electric heaters offer rapid heating and precise temperature control, but their operating costs can be high. Gas heaters are highly efficient and suitable for large-scale tobacco drying operations, but require good ventilation to ensure safety. Steam heaters are relatively stable and are usually used in plants that are integrated with a steam supply system. For example, in some large tobacco processing plants, the plant's steam supply system is used to provide heat to the dryers via steam heaters.
[0042] Drying Chamber: This is the space where tobacco is placed for drying. Its internal structure is designed to ensure that hot air is evenly distributed around the tobacco. The walls of the drying chamber usually have good insulation properties to reduce heat loss. Some drying chambers also have multi-tiered shelves or trays for placing tobacco, which increases the drying area.
[0043] Ventilation system: This includes components such as fans, ducts, and air outlets. The fan provides the power for airflow; its power is selected based on the size of the drying equipment and the drying requirements. The duct design must ensure smooth airflow and avoid dead zones. Air outlets should be rationally distributed to ensure hot air is evenly distributed towards the tobacco and to effectively remove humid air.
[0044] Dehumidification system: This system primarily removes the air containing a large amount of water vapor generated during the drying process from the equipment. It generally includes dehumidification pipes and dehumidification fans. The dehumidification pipes must have good sealing properties to prevent water vapor from leaking back into the drying chamber, and the airflow of the dehumidification fans must be adjusted according to the drying speed and the moisture content of the tobacco.
[0045] Control system: This system allows for precise control of parameters such as temperature, humidity, and airflow. It monitors environmental parameters inside the drying chamber in real time using temperature and humidity sensors, and then adjusts the operating status of the heating, ventilation, and dehumidification systems according to a pre-set program. For example, when the humidity inside the drying chamber reaches a certain threshold, the control system automatically increases the speed of the dehumidification fan to accelerate the dehumidification process.
[0046] Importance in tobacco processing
[0047] Ensuring tobacco quality: By precisely controlling parameters such as temperature, humidity, and airflow during the drying process, tobacco can retain its color, aroma, and taste while removing moisture. If the drying temperature is too high or moisture removal is not timely, the tobacco may scorch, affecting its quality; while improper humidity control may lead to mold growth or uneven drying.
[0048] Improving the stability and shelf life of tobacco: After dehumidification and drying, the moisture content of tobacco is reduced to a suitable range (generally around 12%-14%). This reduces the growth of microorganisms and the occurrence of chemical reactions, thereby improving the stability of tobacco, extending its shelf life, and facilitating subsequent processing and sales.
[0049] Improving production efficiency: Tobacco dehumidification dryers can quickly and effectively remove moisture from tobacco, significantly shortening the drying time compared to traditional methods such as natural air drying. In large-scale tobacco production, this helps improve the efficiency of the entire production process and meet market demands.
[0050] Please see Figures 1-4This utility model provides an embodiment of a tobacco dehumidification and drying machine, including casters 1, a ventilation hood 2, an electric fan 3, a heating element 4, a drying chamber 5, a connecting plate 6, a handle 7, a water tank 8, a fixing frame 9, a rotating motor 10, a rotating shaft 11, a track 12, a connecting strip 13, a fixed bottom mesh plate 14, a wedge-shaped groove 15, a rotating top mesh plate 16, and a wedge-shaped insert 17. The upper end of the casters 1 is provided with the ventilation hood 2, the electric fan 3 is installed inside the ventilation hood 2, a heating element 4 is installed on one side of the electric fan 3, and a drying chamber 5 is installed on one side of the heating element 4. The front end of the drying chamber 5 is provided with a connecting plate 6. The connecting plate 6 has handles 7 on both sides and a water tank 8 at its rear end. A fixing frame 9 is located between the handles 7, and a rotating motor 10 is mounted on the fixing frame 9. A rotating shaft 11 is connected to the rear end of the rotating motor 10. A track 12 is mounted on the outside of the rotating shaft 11, and a connecting strip 13 is mounted on the rotating shaft 11. A fixed bottom mesh plate 14 is mounted at the rear end of the connecting strip 13. A wedge-shaped groove 15 is mounted on the fixed bottom mesh plate 14, and a rotating top mesh plate 16 is rotatably connected to the upper end of the fixed bottom mesh plate 14. A wedge-shaped insert 17 is mounted at the lower end of the rotating top mesh plate 16. The casters 1 facilitate the movement of the entire device. The drying chamber 5 provides the drying space. The ventilation hood 2 protects the electric fan 3. When the electric fan 3 is started, it blows the air heated by the heating tube 4 to achieve dehumidification and drying. The water on the tobacco falls into the water tank 8 for storage. The connecting plate 6 is fixedly connected to the handles 7, which facilitate the movement of the connecting plate 6 and the water tank 8 on the drying chamber 5. Four casters 1 are provided, with two casters 1 on the same side located at the lower end of the same ventilation hood 2. Ventilation hood 2 has ventilation slots, and there are two ventilation hoods 2 arranged symmetrically. One ventilation hood 2 contains three electric fans 3 and one heating element 4, while the other ventilation hood 2 contains three electric fans 3, with the fans 3 on both sides facing the same direction. The drying chamber 5 is a hollow rectangle, with ventilation slots on both sides. The connecting plate 6, handle 7, water tank 8, fixing frame 9, rotating motor 10, rotating shaft 11, track 12, connecting strip 13, fixed bottom mesh plate 14, wedge groove 15, rotating top mesh plate 16, and wedge insert 17 are integrated as a single unit and are slidably connected to the drying chamber 5. The wedge groove 15 and wedge insert 17 are connected in a wedge shape. The fixed frame 9, rotating motor 10, rotating shaft 11, connecting strip 13, fixed bottom mesh plate 14, wedge groove 15, rotating top mesh plate 16 and wedge insert 17 are set as one group, and the rotating shaft 11, connecting strip 13, fixed bottom mesh plate 14, wedge groove 15, rotating top mesh plate 16 and wedge insert 17 are set as another group. There are three groups in this arrangement. The two rotating shafts 11 on the same side are connected by the upper and lower shafts of the track 12, and the two rotating shafts 11 at the lower end are connected by the parallel shafts of the track 12.Connecting strip 13 is fixedly connected to fixed bottom mesh plate 14 and rotatably connected to rotating top mesh plate 16. Tobacco is laid flat between fixed bottom mesh plate 14 and rotating top mesh plate 16. Since both fixed bottom mesh plate 14 and rotating top mesh plate 16 are mesh, ventilation can be achieved. Wedge groove 15 and wedge insert 17 are wedge-shaped connected to facilitate quick opening and closing and fixing. Fixed frame 9 fixes rotating motor 10. When rotating motor 10 is started, it drives rotating shaft 11 to rotate. Track 12 is connected to the shaft, thereby driving the four sets of fixed bottom mesh plates 14 and rotating top mesh plates 16 to rotate, achieving uniform heating and improving drying efficiency.
[0051] During operation, the casters 1 facilitate the movement of the entire device, the drying chamber 5 provides a drying space, the ventilation hood 2 secures and protects the electric fan 3, the electric fan 3 starts and blows the air heated by the heating tube 4 to achieve dehumidification and drying, the water on the tobacco falls into the water tank 8 for storage, the connecting plate 6 secures the handle 7, and the handle 7 facilitates the movement of the connecting plate 6 and the water tank 8 on the drying chamber 5. Connecting strip 13 is fixedly connected to fixed bottom mesh plate 14 and rotatably connected to rotating top mesh plate 16. Tobacco is laid flat between fixed bottom mesh plate 14 and rotating top mesh plate 16. Since both fixed bottom mesh plate 14 and rotating top mesh plate 16 are mesh, ventilation can be achieved. Wedge groove 15 and wedge insert 17 are wedge-shaped connected to facilitate quick opening and closing and fixing. Fixed frame 9 fixes rotating motor 10. Rotating motor 10 is started, driving rotating shaft 11 to rotate. Track 12 is connected to the shaft, thereby driving the four sets of fixed bottom mesh plates 14 and rotating top mesh plates 16 to rotate, achieving uniform heating, improving drying efficiency, and completing all work.
[0052] Through the above steps, the universal wheels 1 are set to facilitate the movement of the entire device. The drying box 5 provides a drying space. The ventilation hood 2 is fixed to protect the electric fan 3. When the electric fan 3 is started, it blows the air heated by the heating tube 4 to achieve dehumidification and drying. The water on the tobacco falls into the water tank 8 for storage. The connecting plate 6 is fixed to the handle 7. The handle 7 facilitates the movement of the connecting plate 6 and the water tank 8 on the drying box 5. Connecting strip 13 is fixedly connected to the fixed bottom mesh plate 14 and rotatably connected to the rotating top mesh plate 16. Tobacco is laid flat between the fixed bottom mesh plate 14 and the rotating top mesh plate 16. Since both the fixed bottom mesh plate 14 and the rotating top mesh plate 16 are mesh, ventilation can be achieved. The wedge-shaped groove 15 and the wedge-shaped insert 17 facilitate quick opening and closing and fixation. The fixing frame 9 fixes the rotating motor 10. When the rotating motor 10 is started, it drives the rotating shaft 11 to rotate. The track 12 is connected to the shaft, thereby driving the four sets of fixed bottom mesh plates 14 and rotating top mesh plates 16 to rotate, achieving uniform heating and improving drying efficiency. This overcomes the shortcomings of existing methods that mostly involve directly laying tobacco flat for sun drying and dehumidification. Although sun drying has a certain drying effect, the tobacco remains fixed during the drying process, and the tobacco at the bottom cannot be heated evenly, resulting in drying dead corners and reduced drying efficiency.
[0053] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A tobacco dehumidification and drying machine, comprising casters (1), characterized in that: It also includes a ventilation hood (2), an electric fan (3), a heating pipe (4), a drying box (5), a connecting plate (6), a handle (7), a water tank (8), a fixing frame (9), a rotating motor (10), a rotating shaft (11), a track (12), a connecting strip (13), a fixed bottom mesh plate (14), a wedge groove (15), a rotating top mesh plate (16), and a wedge insert (17). The upper end of the universal wheel (1) is equipped with a ventilation hood (2), the inside of the ventilation hood (2) is equipped with an electric fan (3), a heating pipe (4) is equipped on one side of the electric fan (3), a drying box (5) is equipped on one side of the heating pipe (4), and a connecting plate (6) is equipped at the front end of the drying box (5). Handles (7) are provided on both sides of the connecting plate (6), a water tank (8) is provided at the rear end of the connecting plate (6), a fixing frame (9) is provided between the handles (7), a rotating motor (10) is provided on the fixing frame (9), a rotating shaft (11) is connected to the rear end of the rotating motor (10), a track (12) is provided on the outside of the rotating shaft (11), a connecting strip (13) is provided on the rotating shaft (11), a fixed bottom mesh plate (14) is provided at the rear end of the connecting strip (13), a wedge groove (15) is provided on the fixed bottom mesh plate (14), a rotating top mesh plate (16) is rotatably connected to the upper end of the fixed bottom mesh plate (14), and a wedge insert (17) is provided at the lower end of the rotating top mesh plate (16).
2. The tobacco dehumidification and drying machine according to claim 1, characterized in that: There are four casters (1), and two casters (1) on the same side are located at the lower end of the same ventilation hood (2).
3. The tobacco dehumidification and drying machine according to claim 1, characterized in that: Ventilation slots are provided on the ventilation hood (2), and there are two ventilation hoods (2). The two ventilation hoods (2) are arranged symmetrically. Three electric fans (3) and one heating pipe (4) are installed inside one ventilation hood (2), and three electric fans (3) are installed inside the other ventilation hood (2). The electric fans (3) on both sides are arranged in the same direction.
4. The tobacco dehumidification and drying machine according to claim 1, characterized in that: The drying box (5) is set as a hollow rectangle, and ventilation slots are provided on both sides of the drying box (5).
5. The tobacco dehumidification and drying machine according to claim 1, characterized in that: The connecting plate (6), handle (7), water tank (8), fixing frame (9), rotating motor (10), rotating shaft (11), track (12), connecting strip (13), fixed bottom mesh plate (14), wedge groove (15), rotating top mesh plate (16) and wedge insert (17) are set as a whole and are slidably connected to the drying box (5).
6. The tobacco dehumidification and drying machine according to claim 1, characterized in that: The wedge groove (15) and the wedge insert (17) are configured as a wedge connection.
7. The tobacco dehumidification and drying machine according to claim 1, characterized in that: The fixed frame (9), rotating motor (10), rotating shaft (11), connecting strip (13), fixed bottom mesh plate (14), wedge groove (15), rotating top mesh plate (16) and wedge insert (17) are set as one group, and the rotating shaft (11), connecting strip (13), fixed bottom mesh plate (14), wedge groove (15), rotating top mesh plate (16) and wedge insert (17) are set as another group. There are three groups in this arrangement. The two rotating shafts (11) on the same side are connected vertically by the track (12), and the two rotating shafts (11) at the lower end are connected in parallel by the track (12).