A tobacco leaf intensive curing room with adjustable circulating fan blades

Abstract

The invention relates to the technical field of tobacco leaf baking, and in particular to an intensive tobacco leaf baking room with adjustable circulating fan blades, comprising a tobacco loading chamber and a heating chamber, wherein a circulating fan unit is arranged in the heating chamber, a fan blade adjusting mechanism is arranged in the circulating fan unit, and a heating unit is arranged below the circulating fan unit. The fan blades of the circulating fan can be rotated 180 degrees through the fan blade adjusting structure, so that the wind direction of the circulating fan is reversed, and the alternating operation of the airflow rising mode and the airflow falling mode in the tobacco loading chamber is realized. The cyclic alternating baking can prevent water droplets from condensing on the top of the tobacco loading chamber, and also avoid tobacco leaves at the same position being in the upstream or downstream of the airflow during the entire baking event, so that the dehydration speed and yellowing degree of tobacco leaves in the upper and lower sheds are kept relatively consistent, effectively solving the problem that the yellowing and dehydration speeds of existing tobacco leaves are different, and the baking quality of tobacco leaves in the upper and lower sheds is difficult to take into account, thereby ensuring the baking quality of tobacco leaves.

Description

Technical field:

[0001] The invention relates to the technical field of tobacco leaf baking, and in particular to a tobacco leaf intensive baking room with adjustable circulating fan blades. Background technology:

[0002] Tobacco leaf baking is a key link in tobacco production. The baking quality of tobacco leaves is directly related to the flavor and grade of cigarettes. The intensive tobacco leaf baking room is the carrier of tobacco leaf baking technology, which is very important to ensure the baking quality of tobacco leaves. There are two types of intensive tobacco leaf baking rooms in my country: rising airflow and falling airflow. Both use circulating fans to force ventilation in the baking room, suck dry and cold air in the environment into the heating chamber, send it into the loading chamber after heating, and bring the water vapor evaporated from the tobacco leaves into the environment, so as to complete the baking of tobacco leaves in this cycle. During the baking process, the tobacco leaves gradually turn yellow and dehydrate. It has the advantages of large tobacco loading capacity and energy saving. However, the flow direction of the airflow in the existing baking room relative to the tobacco leaves is ascending or descending, which is not conducive to the airflow. In a descending curing room, the temperature decreases and the humidity increases as the air flows through the tobacco layer from top to bottom. In an ascending curing room, there is also the phenomenon of uneven temperature and humidity in the upper and lower sheds, and the gradient of change is opposite to that of the descending type. The unidirectional circulation of the airflow causes the dehydration rate and yellowing degree of the tobacco leaves upstream of the airflow to be greater than that of the downstream tobacco leaves, resulting in inconsistent grades of the baked tobacco leaves in the upper and lower sheds, and it is easy for the upstream tobacco leaves to turn brown or the downstream tobacco leaves to turn yellow insufficiently. Some companies use two-way circulation fans to dry the tobacco leaves with alternating airflow, but the two-way circulation fans are not only complex in structure, but also expensive, which increases the baking cost of tobacco leaves, has certain usage restrictions, and also reduces the economic benefits of the company. Summary of the invention:

[0003] In view of the above-mentioned defects and problems, the present invention provides a tobacco intensive curing room with adjustable circulating fan blades. An axial flow fan is used to control the airflow direction, which is easy to implement and reduces the baking cost of tobacco leaves. The blades of the axial flow fan can be rotated 180° through the blade adjustment structure to reverse the wind direction of the axial flow fan, thereby realizing alternating operation of the airflow rising mode and the airflow descending mode in the tobacco loading chamber. The cyclic alternating baking can prevent water droplets from condensing on the top of the tobacco loading chamber, and also avoid tobacco leaves in the same position from being in the upstream or downstream of the airflow during the entire baking process, so that the dehydration speed and yellowing degree of the tobacco leaves in the upper and lower sheds remain relatively consistent, effectively solving the problem that the yellowing and dehydration speeds of the existing tobacco leaves are different, and the baking quality of the tobacco leaves in the upper and lower sheds is difficult to take into account, thereby ensuring the baking quality of the tobacco leaves.

[0004] The solution adopted by the present invention to solve its technical problem is: a tobacco intensive curing room with adjustable circulating fan blades, comprising a drying room, a smoking chamber and a heating chamber are arranged in the drying room, and also comprising a fan blade adjustment mechanism, a heating unit, a circulating fan unit, a rotating frame and an electric push rod. A partition is arranged between the smoking chamber and the heating chamber, and an upper air inlet and a lower air inlet are respectively opened at the top and the bottom of the partition, and an upper dehumidification window and a lower dehumidification window are respectively arranged on the top and the bottom sides of the drying chamber, and a fresh air valve is arranged on one side of the heating chamber; the circulating fan unit is arranged in the heating chamber, the circulating fan unit comprises a fan outer cylinder, a fan blade base is arranged in the fan outer cylinder, fan blades are symmetrically arranged on the outer peripheral side of the fan blade base, a rotating shaft is axially arranged on the top of the fan blade base, the rotating shaft is a hollow structure, a second rotating bearing is mounted on the outer peripheral side of the rotating shaft, the second rotating bearing is fixed on the rotating frame, the rotating frame is fixedly connected to the inner side wall of the fan outer cylinder, a driven gear is fixedly mounted on the rotating shaft, and a A driving motor is provided, and a driving gear is fixedly sleeved on the output shaft of the driving motor, and the driving gear is meshed with the driven gear; the fan blade adjustment mechanism includes an adjusting wheel arranged in the fan blade base, and the two ends of the adjusting wheel are respectively provided with Z-shaped rotating parts, one end of the Z-shaped rotating part is fixedly connected to the adjusting wheel, and the other end is fixedly connected to the inner end of the fan blade; a fixed disc is provided in the inner cavity of the rotating shaft, and a spline sleeve is sleeved on the axis of the fixed disc, and a pull rod is sleeved in the spline sleeve, the inner end of the pull rod is fixedly connected to the outer side of the adjusting wheel, and the outer end of the pull rod extends out of the spline sleeve and is rotatably sleeved in the first rotating bearing, and a fixed seat is provided on the outer side of the first rotating bearing, and the first rotating bearing is fixedly sleeved in the fixed seat, and the electric push rod is arranged above the outer cylinder of the fan, and the output end of the electric push rod extends to the inner cavity of the rotating shaft and is fixedly connected to the fixed seat; the heating unit includes a condenser arranged below the outer cylinder of the fan, the condenser is connected to the external air source heat pump, and an electric heating wire is provided below the condenser.

[0005] Furthermore, it also includes a controller, which is arranged outside the heating chamber, and the driving motor, the electric push rod, the air source heat pump and the heating wire are respectively connected to the controller for control.

[0006] Furthermore, the air source heat pump is arranged outside the heating chamber, and the output end of the air source heat pump is sealedly connected to the input end of the condenser.

[0007] Furthermore, the inner end of the pull rod is fixedly connected to the middle part of the outer side of the adjusting wheel.

[0008] Furthermore, the driven gear is arranged below the second rotating bearing.

[0009] Furthermore, a glass window is provided on the left side of the drying room.

[0010] Furthermore, the fan blades are symmetrical S-shaped blades.

[0011] Furthermore, the interval time between alternating upward and downward airflow is: during the low-temperature humidity control and yellowing period, the two airflow operation modes, the circulating fan blades are flipped once every 1 hour; during the stable temperature, dehumidification and color fixing period, the two airflow operation modes, the circulating fan blades are flipped once every 2 hours; during the temperature control, humidity control and drying period: the two airflow operation modes, the circulating fan blades are flipped once every 4 hours.

[0012] Furthermore, it also includes a dehumidification channel, which is arranged on both sides of the bottom of the drying room, the input end of the dehumidification channel is connected to the smoke loading chamber, and the lower dehumidification window is arranged at the output end of the dehumidification channel.

[0013] The beneficial effects of the present invention are as follows: the hot air generated in the heating chamber can enter the smoke loading chamber through the upper air port and the lower air port for air circulation, and the waste heat in the hot air can also return to the heating chamber through the upper air port and the lower air port for utilization. The dehumidification windows on both sides of the top and bottom of the drying chamber can discharge the humid air in the smoke loading chamber, and the fresh air valve can also be used to replenish air to the drying chamber, thereby realizing a virtuous circulation of the airflow between the heating chamber and the smoke loading chamber, and baking the tobacco leaves. The blades of the axial flow fan are symmetrical S-shaped blades, and the electric push rod can be used to pull the adjusting wheel, so that the adjusting wheel drives the Z-shaped rotating part to rotate the blades. The rotation range of the blades is 0-180°. After the blades are rotated 180°, the wind direction of the axial flow fan is reversed, thereby realizing alternating operation of the airflow rising mode and the airflow descending mode in the smoke loading chamber.

[0014] When the axial flow fan performs air flow rising baking on the tobacco leaves in the smoking chamber, the fan blades of the axial flow fan are directed downward to blow air downward, and the outside air enters the heating chamber through the fresh air valve, moves downward under the action of the axial flow fan, and is heated by the condenser, and the electric heating wire performs auxiliary heating, and the air flow in the heating chamber is transported to the smoking chamber through the downwind port, and the hot air bakes the tobacco leaves, taking away the moisture on the tobacco leaves, and a part of the humid air in the smoking chamber is discharged through the upper dehumidification window, and the rest returns to the heating chamber through the upwind port, thereby realizing air flow rising baking on the tobacco leaves. After baking the tobacco leaves in the smoking chamber for a period of time by air flow rising baking, the staff controls the electric push rod to retract through the controller, and the push-pull rod of the electric push rod can drive the pull rod when it retracts, and then pulls the adjusting wheel, and when the adjusting wheel is pulled, it drives the Z-shaped rotating part, and the Z-shaped rotating part The moving part drives the fan blades so that the fan blades rotate along with the Z-shaped rotating part. The staff can control the rotation range of the fan blades through the electric push rod. The rotation range of the fan blades is 0-180°. After the staff rotates the fan blades 180°, the direction of the fan blades is upward, and the wind direction of the axial flow fan is reversed. At this time, the axial flow fan can blow air upward to bake the tobacco leaves in the tobacco loading chamber in a downward airflow manner. The outside air enters the heating chamber through the fresh air valve and moves upward under the action of the axial flow fan. The upward moving air is heated by the condenser and the electric heating wire is used for auxiliary heating. The airflow in the heating chamber is transported to the tobacco loading chamber through the upper air outlet, and the hot air bakes the tobacco leaves and takes away the moisture on the tobacco leaves. Part of the humid air in the tobacco loading chamber is discharged through the lower dehumidification window, and the rest returns to the heating chamber through the lower air outlet, thereby realizing the downward airflow baking of the tobacco leaves.

[0015] The fan blade adjustment structure can rotate the fan blades 180° to reverse the wind direction of the axial flow fan, thereby realizing alternating operation of the upward airflow mode and the downward airflow mode in the smoke loading chamber. It also avoids the tobacco leaves in the same position being in the upstream or downstream of the airflow throughout the entire baking process, so that the dehydration speed and yellowing degree of the tobacco leaves in the upper and lower sheds remain relatively consistent, effectively solving the problem of different yellowing and dehydration speeds of the existing tobacco leaves, and the difficulty in balancing the baking quality of the tobacco leaves in the upper and lower sheds, thereby ensuring the baking quality of the tobacco leaves. Description of the drawings:

[0016] Figure 1 This is one of the structural schematic diagrams of the present invention.

[0017] Figure 2 This is the second structural schematic diagram of the present invention.

[0018] Figure 3 This is one of the schematic diagrams of the circulation fan unit structure.

[0019] Figure 4 This is the second schematic diagram of the circulation fan unit structure.

[0020] Figure 5It is a schematic diagram of the structure of another fan blade adjustment mechanism.

[0021] Figure 6 for Figure 4 A magnified schematic diagram of part A in FIG.

[0022] Figure 7 This is a schematic diagram of the structure of another circulation fan unit.

[0023] In the figure: 1-baking room, 2-controller, 3-axial flow fan, 301-fan blade, 302-Z-shaped rotating member, 303-adjusting wheel, 304-pull rod, 305-spline sleeve, 306-fixed disc, 307-fixed seat, 308-first rotating bearing, 309-second rotating bearing, 310-fixed frame, 311-rotating shaft, 312-driven gear, 313-driving motor, 314-driving gear, 315-electric push rod, 316-fixed frame, 317-fixed frame, 318-fixed frame, 319-fixed frame, 320-fixed frame, 321-fixed frame, 322-driven gear, 323-driving motor, 324-driving gear, 325-electric push rod, 326-fixed frame, 327-fixed frame, 328-fixed frame, 329-fixed frame, 330-fixed frame, 331-fixed frame, 332-fixed frame, 333-fixed frame, 334-fixed frame, 335-fixed frame, 336-fixed frame, 337-fixed frame, 338-fixed frame, 339-fixed frame, 340-fixed frame, 341-fixed frame, 342-fixed frame, 343-fixed frame, 344-fixed frame, 345-fixed frame, 346-fixed frame, 347-fixed frame, 348-fixed frame, 349-fixed frame, 350-fixed frame, 351-fixed frame, 352-fixed frame, 353-fixed frame, 354-fixed frame, 16-fan outer cylinder, 317-blade base, 4-upper air outlet, 5-upper dehumidification window, 6-glass window, 7-fresh air valve, 8-lower dehumidification window, 9-lower air outlet, 10-condenser, 11-electric heating wire, 12-heating chamber, 13-smoke chamber, 14-partition, 15-air source heat pump, 16-dehumidification channel, 17-fixed outer ring, 18-reinforced card plate, 19-rotating shaft, 20-driving pulley, 21-driven pulley, 22-transmission belt. Specific implementation method:

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Embodiment 1, however, the flow direction of the existing curing room airflow relative to the tobacco leaves is ascending or descending, and the unidirectional circulation of the airflow causes the dehydration speed and yellowing degree of the tobacco leaves upstream of the airflow to be greater than that of the downstream tobacco leaves, resulting in inconsistent grades of the tobacco leaves baked in the upper and lower sheds, and it is easy for the tobacco leaves upstream of the airflow to turn brown or the tobacco leaves downstream of the airflow to turn yellow insufficiently; some companies use two-way circulation fans to perform alternating airflow drying on the tobacco leaves, but the two-way circulation fans are not only complex in structure, but also expensive, which increases the baking cost of tobacco leaves and has certain usage restrictions.

[0026] In view of the above problems, this embodiment provides a tobacco leaf intensive curing room with adjustable circulating fan blades, such as Figure 1-2As shown, the drying room 1 is divided into a heating chamber 12 and a smoke loading chamber 13, a partition 14 is arranged between the heating chamber 12 and the smoke loading chamber 13, an upper air port 4 is opened on the top of the partition 14, and a lower air port 9 is opened on the bottom of the partition, and the hot air generated in the heating chamber 12 can enter the smoke loading chamber 13 through the upper air port 4 and the lower air port 9 for air circulation, upper dehumidification windows 5 are fixedly installed on both sides of the top of the drying room 1, and dehumidification channels 16 are arranged on both sides of the bottom of the drying room 1, the input end of the dehumidification channel 16 is connected with the smoke loading chamber 13, and the output end of the dehumidification channel 16 is arranged with a lower dehumidification window 8, and a glass window 6 is arranged on the left side of the drying room 1, through which the baking state of the tobacco leaves in the smoke loading chamber 13 can be observed.

[0027] The axial flow fan 3 is arranged in the heating chamber 12. Figure 3-4 As shown, a fan outer cylinder 316 of the axial flow fan 3 is provided with a blade base 318, and the outer peripheral side of the blade base 318 is symmetrically provided with blades 301, and the blades 301 are S-shaped blades. A rotating shaft 311 is axially fixed on the top of the blade base 318, and the rotating shaft 311 is a hollow structure. The second rotating bearing 309 is sleeved on the outer peripheral side of the rotating shaft 311, and a rotating frame 310 is provided on the outer side of the second rotating bearing 309. One end of the rotating frame 310 is fixed on the outer peripheral side of the second rotating bearing 309, and the other end is fixedly connected to the inner side wall of the fan outer cylinder 316 to fix the second rotating bearing 309. A driven gear 312 is fixedly sleeved on the rotating shaft 311 The driven gear 312 is arranged below the second rotating bearing 309, and a driving motor 313 is fixedly installed above the fan outer cylinder 316. The output shaft of the driving motor 313 extends into the fan outer cylinder 316, and a driving gear 314 is fixedly sleeved on the end of the output shaft of the driving motor 313. The driving gear 314 is meshed with the driven gear 312. After the driving motor 313 is started, the driving gear 314 is meshed with the driven gear 312 to drive the rotating shaft 311 to rotate in the second rotating bearing 309, so that the fan blade base 318 rotates in the fan outer cylinder 316, and the rotation of the fan blade base 318 drives the fan blades 301 to rotate together, so as to realize the blowing of airflow.

[0028] An adjusting wheel 303 is horizontally arranged in the inner cavity of the fan blade base 318, and Z-shaped rotating parts 302 are respectively arranged at the two ends of the adjusting wheel 303, one end of the Z-shaped rotating part 302 is fixedly connected to the adjusting wheel 303, and the other end is fixedly connected to the inner end of the fan blade 301. When the adjusting wheel 303 is pulled, it can drive the Z-shaped rotating part 302, and the Z-shaped rotating part 302 controls the rotation of the fan blade 301, rotates the fan blade 301 108°, and reverses the direction of the fan blade 301, thereby reversing the wind direction of the axial flow fan 3; a fixed disc 306 is arranged in the inner cavity of the rotating shaft 311, and the outer peripheral side of the fixed disc 306 is fixedly connected to the inner side wall of the rotating shaft 311, and a through hole is opened through the axis of the fixed disc 306, and a spline sleeve 305 is fixedly sleeved in the through hole, and a pull rod 304 is sleeved in the spline sleeve 305, and the pull rod 304 can be 5 rotates and slides inside, the inner end of the pull rod 304 is fixedly connected to the middle part of the outer circumference of the adjusting wheel 303, and the outer end of the pull rod 304 extends out of the spline sleeve 305, the outer end of the pull rod 304 is provided with a first rotating bearing 308, and the outer end of the pull rod 304 is rotatably sleeved in the first rotating bearing 308, and a fixing seat 307 is provided on the outer circumference of the first rotating bearing 308, and the outer circumference of the first rotating bearing 308 is fixedly sleeved in the fixing seat 307, and an electric push rod 315 is fixedly installed above the fan outer cylinder 316, and the push-pull rod of the electric push rod 315 extends to the inner cavity of the rotating shaft 311 and is fixedly connected to the fixing seat 307. After the electric push rod 315 is started, the contraction of the push-pull rod can drive the pull rod 304 to slide in the spline sleeve 305, pull the adjusting wheel 303, drive the Z-shaped rotating member 302, and then drive the fan blades 301 to rotate, so as to change the wind direction of the axial flow fan 3.

[0029] A condenser 10 is arranged below the axial flow fan 3, and an air source heat pump 15 is arranged outside the heating chamber 12. The output end of the air source heat pump 15 is connected to the input end of the condenser 10. The condenser 10 can release high-temperature heat in the heating chamber 12 to heat the airflow in the heating chamber 12 to form hot air. An electric heating wire 11 is arranged below the condenser 10 to auxiliary heat the airflow in the heating chamber 12. A controller 2 is arranged outside the heating chamber 12, and the air source heat pump 15, the electric heating wire 11, the drive motor 305 and the electric push rod 315 are controlled and connected to the controller.

[0030] A tobacco leaf placement rack is provided in the tobacco loading chamber 13. After the tobacco leaves are evenly placed on the tobacco leaf placement rack, the controller 2 starts the air source heat pump 15 and the electric heating wire 11. The air source heat pump 15 enables the condenser 10 to release high-temperature heat in the heating chamber 12 to heat the airflow. The electric heating wire 11 performs auxiliary heating on the airflow. The refrigerant completes the gaseous pressure-raising and temperature-raising process in the air source heat pump, and releases high-temperature heat after entering the condenser 10. At the same time, it is cooled and converted into a liquid state. After circulating to the air source heat pump, the liquid absorbs heat and evaporates and is converted into a gaseous state again, and is transported to the condenser 10 for circulation; the controller 2 starts the drive motor 305, and the driving gear 314 on the output shaft of the drive motor 2 meshes with the driven gear 312 on the rotating shaft 311 for transmission, driving the rotating shaft 311 to rotate at the second rotating shaft The bearing 309 rotates, thereby causing the fan blade base 318 to rotate in the fan outer cylinder 316. The rotation of the fan blade base 318 drives the fan blade 301 to rotate together, thereby realizing the blowing of airflow; when the axial flow fan 3 performs airflow ascending baking on the tobacco leaves in the smoking chamber, the direction of the fan blade 301 is downward, and the air is blown downward. The outside air enters the heating chamber 12 through the fresh air valve 7, and moves downward under the action of the axial flow fan 3. It is heated by the condenser 10 and the heating wire 11 performs auxiliary heating. The airflow in the heating chamber 12 is transported to the smoking chamber 13 through the downwind port 9. The hot air bakes the tobacco leaves and takes away the moisture on the tobacco leaves. A part of the humid hot air in the smoking chamber 13 is discharged through the upper dehumidification window 5, and the rest returns to the heating chamber 12 through the upper wind port 4, thereby realizing the airflow ascending baking of the tobacco leaves.

[0031] After the tobacco leaves in the smoke chamber 12 are baked by airflow rising baking for a period of time, the staff controls the electric push rod 315 to retract through the controller 2. The push-pull rod of the electric push rod 315 drives the pull rod 304 when it retracts, and then pulls the adjusting wheel 303. When the adjusting wheel 303 is pulled, it drives the Z-shaped rotating part 302, and the Z-shaped rotating part 302 drives the fan blade 301, so that the fan blade 301 rotates with the Z-shaped rotating part 302. The staff can control the rotation range of the fan blade 301 through the electric push rod 315, and the fan blade rotation range is 0-180°. After the staff rotates the fan blade 301 180°, the direction of the fan blade 301 is upward, and the wind direction of the axial flow fan 3 is reversed. At this time, the axial flow fan 3 can blow air upward to bake the tobacco leaves in the smoke chamber 12 by airflow falling, and the outside air enters through the fresh air valve 7. In the heating chamber, the air moves upward under the action of the axial flow fan 3, the upward moving air is heated by the condenser 10, and the electric heating wire 11 performs auxiliary heating, the air flow in the heating chamber 12 is transported to the tobacco loading chamber 12 through the upper air port 4, the hot air bakes the tobacco leaves, and takes away the moisture on the tobacco leaves, a part of the humid hot air in the tobacco loading chamber 12 is discharged by the lower dehumidification window 8 at the output end of the dehumidification channel 16, and the rest returns to the heating chamber 12 through the lower air port 9, so as to realize the airflow descending baking of the tobacco leaves; the interval time of alternating operation of the upward air flow and the downward air flow is: during the low temperature humidity adjustment and yellowing period, there are two airflow operation modes, and the fan blade 301 is turned over once every 1 hour; during the stable temperature dehumidification and color fixing period, there are two airflow operation modes, and the fan blade 301 is turned over once every 2 hours; during the temperature control, humidity control and drying period: there are two airflow operation modes, and the fan blade 301 is turned over once every 4 hours.

[0032] Example 2, a tobacco leaf intensive curing barn with adjustable circulating fan blades in this embodiment is described centering on the differences from Example 1.

[0033] In this embodiment, Figure 5-6 As shown, a fixed outer ring 17 is provided on the inner side of the fan outer cylinder 316, and a rotating shaft 19 corresponding to the outer end of the fan blade 301 is fixedly mounted on the fixed outer ring 17, and a reinforcing clamp 18 is fixed to the outer end of the fan blade 301, and the reinforcing clamp 18 is rotatably mounted in the rotating shaft 19. When the fan blade 301 is reversed, the outer end of the fan blade 301 can rotate on the fixed outer ring 17 under the action of the rotating shaft 19, and the fixed outer ring 17 can rotate together with the fan blade 301. The fixed outer ring 17 can support the fan blade 301, reinforce the fan blade 301, and ensure the stability of the fan blade 301 when working.

[0034] Example 3, a tobacco leaf intensive curing barn with adjustable circulating fan blades in this embodiment is described centering on the differences from Example 1.

[0035] In this embodiment, Figure 7As shown, a driving pulley 20 is fixedly installed on the output shaft end of the driving motor 313, and a driven pulley 21 is fixedly mounted on the rotating shaft 311. The driving pulley 20 and the driven pulley 21 are connected by a transmission belt 22. The mutual cooperation between the driving pulley 20 and the driven pulley 21 improves the working efficiency of the axial flow fan 3 and reduces the noise generation.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tobacco leaf intensive curing room with adjustable circulating fan blades, comprising a drying room, a tobacco loading room and a heating room, wherein: The fan unit is a fan unit with a plurality of fans, each of which has a plurality of fans, and the plurality of fans have fans that are connected to the fan shaft. The fans are connected to the plurality of fans' respective motor vehicles. The fans are connected to the plurality of fans' respective motor vehicles. A Z-shaped rotating part is provided, one end of the Z-shaped rotating part is fixedly connected to the adjusting wheel, and the other end is fixedly connected to the inner end of the fan blade; a fixed disc is provided in the inner cavity of the rotating shaft, and a spline sleeve is provided on the axis of the fixed disc, and a pull rod is provided in the spline sleeve, and the inner end of the pull rod is fixedly connected to the outer side of the adjusting wheel, and the outer end of the pull rod extends out of the spline sleeve and is rotatably sleeved in the first rotating bearing, and a fixed seat is provided on the outer side of the first rotating bearing, and the first rotating bearing is fixedly sleeved in the fixed seat, and the electric push rod is arranged above the outer cylinder of the fan, and the output end of the electric push rod extends to the inner cavity of the rotating shaft and is fixedly connected to the fixed seat; the heating unit includes a condenser arranged below the outer cylinder of the fan, the condenser is connected to the external air source heat pump, and an electric heating wire is arranged below the condenser; the air source heat pump is arranged outside the heating chamber, and the output end of the air source heat pump is sealed and connected to the input end of the condenser; it also includes a controller, the controller is arranged outside the heating chamber, and the driving motor, the electric push rod, the air source heat pump and the electric heating wire are respectively controlled and connected to the controller.

2. The tobacco leaf intensive curing barn with adjustable circulating fan blades according to claim 1, characterized in that: The inner end of the pull rod is fixedly connected to the middle part of the outer side of the adjusting wheel.

3. The tobacco leaf intensive curing barn with adjustable circulating fan blades according to claim 1, characterized in that: The driven gear is arranged below the second rotary bearing.

4. The tobacco leaf intensive curing barn with adjustable circulating fan blades according to claim 1, characterized in that: There is a glass window on the left side of the drying room.

5. The tobacco leaf intensive curing barn with adjustable circulating fan blades according to claim 1, characterized in that: The fan blades are symmetrical S-shaped blades.

6. The tobacco leaf intensive curing barn with adjustable circulating fan blades according to claim 1, characterized in that: The interval time between alternating upward and downward airflow is: during the low-temperature humidity control and yellowing period, there are two airflow operation modes, and the circulating fan blades are flipped once every 1 hour; during the stable temperature, dehumidification and color fixing period, there are two airflow operation modes, and the circulating fan blades are flipped once every 2 hours; during the temperature control, humidity control and drying period: there are two airflow operation modes, and the circulating fan blades are flipped once every 4 hours.

7. The tobacco leaf intensive curing barn with adjustable circulating fan blades according to claim 1, characterized in that: It also includes a dehumidification channel, which is arranged on both sides of the bottom of the drying room. The input end of the dehumidification channel is connected to the smoke loading chamber, and the lower dehumidification window is arranged at the output end of the dehumidification channel.

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