A drying apparatus for tobacco

Abstract

The present application relates to a kind of drying equipment for tobacco processing, comprising: feeding assembly, containing hopper and lifting conveyor, the blanking port of the hopper can be swinged installation guide plate, guide plate contains shielding part and guide part, the bottom side of the guide part is fixedly installed with magnet block, and the lifting conveyor is respectively pre-embedded installation with magnetic metal sheet;Vibration dispersion component, containing over material guide groove and ultrasonic vibration source, the upper portion of over material guide groove is provided with cover, the top of cover is fixedly connected with a group of guide plate downwards, the back side of the guide plate is eccentrically rotatably installed with rotating member, and the guide plate is installed with air outlet end of air guide pipe opposite the rotating member;Drying device, the drying device is provided with waste heat recovery component, and the hot air outlet end of the waste heat recovery component is connected to the air inlet end of the air guide pipe.The present application can effectively realize material loose feeding and effectively improve the vibration dispersion effect of material, and can effectively improve the heat source utilization rate of drying device.

Description

Technical Field

[0001] This invention relates to the field of drying equipment technology, specifically to a drying equipment for tobacco processing. Background Technology

[0002] Tobacco drying equipment, as the name suggests, is used to dry tobacco shreds. Existing tobacco drying equipment mainly includes a feeding mechanism for feeding tobacco shreds into the corresponding drying drum. To improve the drying effect of tobacco shreds, some manufacturers have begun to try adding corresponding vibration and dispersion components between the feeding mechanism and the drying device. The vibration and dispersion components are used to disperse the tobacco shreds that are about to enter the drying device, thereby improving the drying effect of the tobacco shreds.

[0003] Existing tobacco drying equipment has the following defects in actual use: 1) When the feeding mechanism lifts and conveys the tobacco material, the material is prone to clumping, resulting in insufficient loosening effect even after passing through the vibration dispersion component, thus affecting the drying effect and efficiency; 2) The vibration dispersion component has a single function, and its vibration dispersion effect on tobacco material is difficult to effectively achieve; 3) The heat source utilization rate of the drying device is low, and its drying temperature should not be too high, so the drying effect can only be ensured by the drying time, which is very troublesome.

[0004] Therefore, the research objective of this invention is to design a drying equipment for tobacco processing that can effectively achieve loose feeding of materials and effectively improve the material dispersion effect, and can utilize waste heat to perform preliminary drying of materials during the material dispersion process, and can effectively improve the heat source utilization rate of the drying device, thereby effectively ensuring the overall drying effect and drying efficiency. Summary of the Invention

[0005] In view of the technical problems existing in the prior art, the present invention provides a drying device for tobacco processing, which can effectively solve the technical problems existing in the prior art.

[0006] The technical solution of this invention is:

[0007] A drying device for tobacco processing, comprising:

[0008] The feeding assembly includes a hopper and a lifting conveyor belt for conveying tobacco material in the hopper. The discharge end of the hopper is inclined and has a corresponding discharge port at its bottom. A guide plate supported by a corresponding elastic element is oscillatingly installed at the discharge port. The guide plate is made of engineering plastic and includes a shielding part that closes the discharge port and a guide part connected to the lower side of the shielding part. A magnet is fixedly installed on the bottom side of the guide part. Multiple lifting protrusions made of engineering plastic are fixedly connected to the outer surface of the lifting conveyor belt at intervals. Magnetic metal sheets corresponding to the positions of the magnets are pre-embedded on the lifting conveyor belt in front of the lifting protrusions.

[0009] The vibration dispersion assembly includes a material guide chute with its feed end connected to the discharge end of the lifting conveyor belt, and an ultrasonic vibration source disposed at the bottom of the material guide chute. The upper part of the material guide chute is provided with a corresponding cover. A set of pointed guide plates is fixedly connected to the top of the cover with its top facing downward. A rotating component with a protrusion at its circumference is eccentrically mounted on the back side of the set of guide plates, and an air duct with its air outlet facing the rotating component is mounted on the set of guide plates.

[0010] A drying device is used to dry the tobacco material output from the feed chute. The drying device is equipped with a waste heat recovery component, and the hot air outlet of the waste heat recovery component is connected to the air inlet of the air duct through a corresponding exhaust fan.

[0011] The drying device includes a drying drum driven by a corresponding rotary drive mechanism. The feed end of the drying drum is connected to the discharge end of the material guide chute. The inner side wall of the drying drum is provided with a turning feed plate. At least one corresponding electric heater is provided on the outer side of the drying drum. The waste heat recovery assembly includes an isolation sleeve rotatably sleeved on the outer side of the drying drum. The electric heater is fixedly installed on the bottom side of the isolation sleeve. One side of the isolation sleeve is provided with a corresponding air inlet. The other side of the isolation sleeve is connected to an exhaust pipe. The exhaust pipe is connected to the air inlet of the air guide pipe through the exhaust fan.

[0012] The rotation drive mechanism includes a transmission gear ring fixed to the drying drum, which is meshed with a drive gear at the output shaft end of a corresponding drive motor.

[0013] The drying drum is evenly distributed with multiple corresponding fixed tubes. Each fixed tube has an inwardly mounted arc-shaped cover plate with several corresponding air vents. A piston is movably mounted inside each fixed tube. Several guide shafts with end-connected limit components are movably mounted longitudinally on each piston. A corresponding annular cover plate is fixed to each guide shaft. A guide hole is provided on each piston between two adjacent guide shafts. The piston is driven by a corresponding piston drive mechanism. When the arc-shaped cover plate passes the bottom of the isolation sleeve as the drying drum rotates, the piston drive mechanism drives the piston to move inward to blow hot air out through the air vents of the arc-shaped cover plate. When the arc-shaped cover plate leaves the bottom of the isolation sleeve, the piston drive mechanism drives the piston to move outward and reset, so that the annular cover plate and the piston are spaced apart, allowing hot air to enter the fixed tube above the piston through the guide hole.

[0014] The piston drive mechanism includes a fixed rod fixed to the outside of the piston, a limiting plate fixed to the fixed rod, a corresponding compression spring connected between the limiting plate and the outer side wall of the drying drum, and a corresponding support roller rolled on the outer side of the limiting plate. A diagonal brace for guiding the support roller is fixed to the isolation sleeve, and the electric heater is fixedly installed inside the isolation sleeve on the bottom side of the diagonal brace.

[0015] The arc-shaped cover plate can be detachably installed onto the fixed pipe via a threaded connection.

[0016] The feeding assembly, the vibration dispersion assembly, and the drying device are respectively fixedly installed on their respective workbenches, and the workbenches are fixedly equipped with isolation covers for isolating the feeding assembly, the vibration dispersion assembly, and the drying device.

[0017] The workbench is equipped with a material guide conveyor belt located at the discharge end of the drying device, and the discharge end of the material guide conveyor belt is equipped with a discharge conveyor belt for outputting the dried extended material.

[0018] A corresponding support is fixedly installed between the discharge end of the discharge conveyor belt and the hopper, and a corresponding online moisture detector is movably installed between the supports.

[0019] The online moisture analyzer is driven by a corresponding lead screw drive mechanism.

[0020] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0021] 1) The feeding assembly of the present invention includes a hopper and a lifting conveyor belt. The discharge end of the hopper is inclined and has a corresponding discharge port at its bottom end. A guide plate supported by a corresponding elastic element is oscillatingly installed at the discharge port. The guide plate is made of engineering plastic and includes a shielding part that closes the discharge port and a guide part connected to the lower side of the shielding part. A magnet is fixedly installed on the bottom side of the guide part. In addition, the present invention further includes a plurality of engineering plastic lifting flanges fixedly attached at intervals on the outer surface of the lifting conveyor belt. Magnetic metal sheets corresponding to the positions of the magnets are pre-embedded on the lifting conveyor belt in front of the lifting flanges.

[0022] During the feeding process, the lifting conveyor belt circulates over the location of the hopper. As the lifting conveyor belt moves, the magnetic metal sheet circulates over the bottom side of the guide section and generates magnetic attraction with the magnet block fixedly embedded in the bottom side of the guide section. This drives the guide plate to swing downwards intermittently, thereby intermittently loosely feeding the material to the area of ​​each lifting protrusion, so as to effectively achieve loose feeding of the material.

[0023] 2) The vibration dispersion component of the present invention includes a material guide chute whose feed end is connected to the discharge end of the lifting conveyor belt, and an ultrasonic vibration source disposed at the bottom of the material guide chute. The upper part of the material guide chute is provided with a corresponding cover. A set of pointed guide plates is fixedly connected to the top of the cover facing downward. A rotating component with a protrusion on the circumference is eccentrically mounted on the back side of the set of guide plates. An air duct with its air outlet facing the rotating component is mounted on the set of guide plates. Most importantly, the drying device of the present invention is also provided with a waste heat recovery component. The hot air outlet of the waste heat recovery component is connected to the air inlet of the air duct through a corresponding exhaust fan.

[0024] After the tobacco shreds loosely enter the feeding guide chute, the ultrasonic vibration source effectively generates ultrasonic vibration on the feeding guide chute, thereby improving the loosening effect of the tobacco shreds. The hot air collected by the waste heat recovery component is blown towards the protrusion of the rotating part through the air inlet of the air duct, thereby effectively driving the rotating part to generate eccentric rotation. This causes a set of guide plates to generate vibration at a frequency different from that of the feeding guide chute, thereby enhancing the dispersing effect of the tobacco shreds passing through the set of guide plates. During the dispersing process, the waste heat can be used to achieve preliminary drying of the material, effectively improving the heat source utilization rate of the drying device, and thus effectively ensuring the overall drying effect and drying efficiency.

[0025] 3) The drying drum of the present invention has a plurality of fixed tubes evenly distributed on it. Each fixed tube is fitted with a corresponding arc-shaped cover plate facing inward. Each arc-shaped cover plate is provided with a plurality of corresponding air vents. A piston is movably installed inside each fixed tube. Each piston is longitudinally movably fitted with a plurality of guide shafts with end-connected limit members. A corresponding annular cover plate is fixedly connected to the guide shaft. A corresponding guide hole is provided on each piston between two adjacent guide shafts. The piston is driven by a corresponding piston driving mechanism. When the arc-shaped cover plate passes the bottom end of the isolation sleeve as the drying drum rotates, the piston driving mechanism drives the piston to move inward to blow hot air out through the air vents of the arc-shaped cover plate. When the arc-shaped cover plate leaves the bottom end of the isolation sleeve, the piston driving mechanism drives the piston to move outward to reset, so that the annular cover plate and the piston are spaced apart, thereby allowing hot air to enter the fixed tube above the piston through the guide hole. In this way, hot air can be effectively injected into the drying drum through the air vents of the arc-shaped cover plate, thereby further improving the utilization rate of the heat source and, to a certain extent, dispersing the material inside the drying drum, thus further assisting in improving the drying effect and efficiency of the tobacco material.

[0026] 4) The piston drive mechanism of the present invention includes a fixed rod fixed to the outside of the piston, a limiting plate fixed to the fixed rod, and corresponding compression springs connected between the limiting plate and the outer side wall of the drying drum. Corresponding support rollers are rotatably mounted on the outer side of the limiting plate. A diagonal brace plate for guiding the support rollers is fixed to the isolation sleeve. An electric heater is fixedly installed inside the isolation sleeve on the bottom side of the diagonal brace plate. In this way, when the arc-shaped cover plate passes the bottom of the isolation sleeve as the drying drum rotates, the diagonal brace plate drives the support rollers and the limiting plate upwards, thereby pushing the piston to force the hot air stored on the upper side of the piston into the drying drum, ensuring the practical effect of the present invention.

[0027] 5) The arc-shaped cover plate of the present invention can be detachably installed on the fixed tube by means of threaded connection. As the drying process proceeds, the user only needs to remove the arc-shaped cover plate periodically when the equipment is stopped to clean up the small amount of tobacco material that has fallen into the fixed tube, thereby further ensuring the practical effect of the present invention.

[0028] 6) A corresponding support is fixedly installed between the discharge end of the discharge conveyor belt and the hopper of the present invention, and a corresponding online moisture detector is movably installed between the support. When the tobacco material is fed into the hopper, the moisture content of the batch of material can be detected in a timely manner by the online moisture detector. As the drying process progresses, the online moisture detector is moved to the discharge end of the discharge conveyor belt to detect the moisture content of the dried material. Thus, with the use of one set of online moisture detectors, the moisture content detection of the incoming and outgoing materials can be effectively completed, thereby effectively reducing equipment costs. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the present invention.

[0030] Figure 2 A schematic diagram of the structure in which the feeding assembly, vibration dispersion assembly, and drying device are installed on the workbench.

[0031] Figure 3 A schematic diagram of the structure on the other side of the workbench, showing the feeding assembly, vibration dispersion assembly, and drying device installed.

[0032] Figure 4 A top view of the feeding assembly, vibrating dispersion assembly, and drying device mounted on the workbench.

[0033] Figure 5 A cross-sectional view of the feeding assembly, vibrating dispersion assembly, and drying device mounted on the workbench.

[0034] Figure 6 This is a schematic diagram of the feeding assembly.

[0035] Figure 7 This is a schematic diagram of the vibration dispersion component.

[0036] Figure 8 This is a schematic diagram of the drying device and waste heat recovery components.

[0037] Figure 9 This is an assembly diagram of the piston drive mechanism.

[0038] In the attached diagram: 1. Feeding assembly; 101. Hopper; 102. Lifting conveyor belt; 103. Elastic element; 104. Guide plate; 1041. Blocking part; 1042. Guide part; 105. Magnet block; 106. Lifting flange; 107. Magnetic metal sheet; 2. Vibration dispersion assembly; 201. Material guide chute; 202. Ultrasonic vibration source; 203. Cover; 204. Guide plate; 205. Rotating part; 206. Air duct; 3. Drying device; 301. Drying drum; 302. Turning and feeding plate; 303. Electric heater; 4. Waste heat recovery assembly; 401. Isolation sleeve; 402. Air inlet. 11. Exhaust duct 402. Exhaust fan 5. Rotary drive mechanism 6. Transmission gear ring 601. Drive motor 602. Drive gear 603. Arc-shaped cover plate 7. Ventilation hole 701. Fixed pipe 8. Piston 9. Corresponding guide shaft 10. Annular cover plate 11. Guide hole 12. Fixed rod 1301. Limiting plate 1302. Compression spring 1303. Support roller 1304. Diagonal brace plate 1305. Workbench 14. Isolation cover 15. Material guide conveyor belt 16. Discharge conveyor belt 17. Support 18. Online moisture detector 19. Screw drive mechanism 20. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0040] refer to Figure 1-9 A drying device for tobacco processing, comprising:

[0041] The feeding assembly 1 includes a hopper 101 and a lifting conveyor belt 102 for conveying tobacco material in the hopper 101. The discharge end of the hopper 101 is inclined and has a corresponding discharge port at its bottom. A guide plate 104 supported by a corresponding elastic element 103 is swayably installed at the discharge port. The guide plate 104 is made of engineering plastic and includes a blocking part 1041 that closes the discharge port and a guide part 1042 connected to the lower side of the blocking part 1041. A magnet block 105 is fixedly installed on the bottom side of the guide part 1042. A plurality of engineering plastic lifting flanges 106 are fixedly connected to the outer surface of the lifting conveyor belt 102 at intervals. Magnetic metal pieces 107 corresponding to the positions of the magnet blocks 105 are pre-embedded on the lifting conveyor belt 102 in front of the lifting flanges 106.

[0042] The vibration dispersion component 2 includes a material guide 201 with its feed end connected to the discharge end of the lifting conveyor belt 102, and an ultrasonic vibration source 202 disposed at the bottom of the material guide 201. A corresponding cover 203 is disposed on the upper part of the material guide 201. A set of pointed guide plates 204 are fixedly connected to the top of the cover 203 facing downward. A rotating component 205 with a protrusion at one circumference is eccentrically mounted on the back side of the set of guide plates 204. An air duct 206 with its air outlet facing the rotating component 205 is also mounted on the set of guide plates 204.

[0043] The drying device 3 is used to dry the tobacco material output from the feed chute 201. The drying device 3 is equipped with a waste heat recovery component 4. The hot air outlet of the waste heat recovery component 4 is connected to the air inlet of the air duct 206 through a corresponding exhaust fan 5.

[0044] During the feeding process of this invention, the lifting conveyor belt 102 circulates past the location of the hopper 101. As the lifting conveyor belt 102 moves, the magnetic metal sheet 107 circulates past the bottom side of the guide section 1042 and generates magnetic attraction with the magnet block 105 fixedly embedded in the bottom side of the guide section 1042, thereby driving the guide plate 104 to swing downward intermittently, thereby intermittently loosely feeding the material to the area of ​​each lifting protrusion 106, so as to effectively realize the loose feeding of the material. After the tobacco shreds loosely enter the feeding guide 201, the ultrasonic vibration source 202 effectively generates ultrasonic vibration on the feeding guide 201, thereby improving the loosening effect of the tobacco shreds. The hot air collected by the waste heat recovery component 4 is blown towards the protrusion of the rotating component 205 through the air inlet end of the air duct 206, thereby effectively driving the rotating component 205 to generate eccentric rotation, so that the entire set of guide plates 204 generates vibration at a frequency different from that of the feeding guide 201, so as to enhance the shaking and dispersing effect of the tobacco shreds passing through the set of guide plates 204. In addition, during the shaking and dispersing process of the material, the waste heat can be used to achieve the initial drying operation of the material, and the heat source utilization rate of the drying device 3 can be effectively improved, thereby effectively ensuring the overall drying effect and drying efficiency.

[0045] The drying device 3 includes a drying drum 301 driven by a corresponding rotation drive mechanism 6. The feed end of the drying drum 301 is connected to the discharge end of the material guide trough 201. The inner side wall of the drying drum 301 is provided with a turning feed plate 302. At least one corresponding electric heater 303 is provided on the outer side of the drying drum 301. The waste heat recovery assembly 4 includes an isolation sleeve 401 rotatably sleeved on the outer side of the drying drum 301. The electric heater 303 is fixedly installed on the bottom side of the isolation sleeve 401. One side of the isolation sleeve 401 is provided with a corresponding air inlet 4011. The other side of the isolation sleeve 401 is connected to an exhaust pipe 402. The exhaust pipe 402 is connected to the air inlet of the air guide pipe 206 through the exhaust fan 5.

[0046] The rotation drive mechanism 6 includes a transmission gear ring 601 fixed to the drying drum 301, and the transmission gear ring 601 is meshed with the drive gear 603 at the output shaft end of the corresponding drive motor 602.

[0047] The drying drum 301 is evenly provided with multiple corresponding fixed tubes 8. Each fixed tube 8 is fitted with an arc-shaped cover plate 7 facing inward. Each arc-shaped cover plate 7 is provided with a number of corresponding air vents 701. A piston 9 is movably installed inside each fixed tube 8. Each piston 9 is longitudinally movably mounted with a number of guide shafts 10 whose ends are connected to limit members. A corresponding annular cover plate 11 is fixed to each guide shaft 10. Each piston 9 between two adjacent guide shafts 10 is provided with a corresponding guide hole 12. The piston is driven by a corresponding piston motor. The piston 9 is driven by the piston drive mechanism. When the arc-shaped cover plate 7 passes the bottom end of the isolation sleeve 401 as the drying drum 301 rotates, the piston drive mechanism drives the piston 9 to move inward to blow hot air out through the vent hole 701 of the arc-shaped cover plate 7. When the arc-shaped cover plate 7 leaves the bottom end of the isolation sleeve 401, the piston drive mechanism drives the piston 9 to move outward and reset, so that the annular cover plate 11 and the piston 9 are spaced apart, thereby allowing hot air to enter the fixed tube 8 on the upper side of the piston 9 through the guide hole 12. In this way, hot air can be effectively and timely injected into the drying drum 301 through the vent hole 701 of the arc-shaped cover plate 7, so as to further improve the utilization rate of the heat source and to a certain extent disperse the material in the drying drum 301, thereby further assisting in improving the drying effect and drying efficiency of tobacco materials.

[0048] The piston drive mechanism includes a fixed rod 1301 fixed to the outside of the piston 9. A limiting plate 1302 is fixed to the fixed rod 1301. A corresponding compression spring 1303 is connected between the limiting plate 1302 and the outer wall of the drying drum 301. A corresponding support roller 1304 is rotatably mounted on the outer side of the limiting plate 1302. A diagonal brace 1305 for guiding the support roller 1304 is fixed to the isolation sleeve 401. The electric heater 303 is fixedly installed inside the isolation sleeve 401 on the bottom side of the diagonal brace 1305. In this way, when the arc-shaped cover plate 7 passes the bottom end of the isolation sleeve 401 as the drying drum 301 rotates, the diagonal brace 1305 can drive the support roller 1304 and the limiting plate 1302 upward, thereby pushing the piston 9 to force the hot air stored on the upper side of the piston 9 into the drying drum 301, ensuring the practical effect of the present invention.

[0049] The arc-shaped cover plate 7 can be detachably installed onto the fixed tube 8 via a threaded connection. As the drying process progresses, the user only needs to periodically remove the arc-shaped cover plate 7 when the equipment is stopped to clean up the small amount of tobacco material that has fallen into the fixed tube 8, thereby further ensuring the practical effect of the present invention.

[0050] The feeding assembly 1, the vibration dispersion assembly 2, and the drying device 3 are respectively fixedly installed on the corresponding workbench 14. An isolation cover 15 for isolating the feeding assembly 1, the vibration dispersion assembly 2, and the drying device 3 is fixedly installed on the workbench 14.

[0051] The workbench 14 is provided with a material guide conveyor belt 16 located at the discharge end of the drying device 3, and the discharge end of the material guide conveyor belt 16 is provided with a discharge conveyor belt 17 for outputting the dried extended material.

[0052] A corresponding support frame 18 is fixedly installed between the discharge end of the discharge conveyor belt 17 and the hopper 101, and a corresponding online moisture analyzer 19 is movably installed between the support frames 18. The online moisture analyzer 19 is driven by a corresponding screw drive mechanism 20.

[0053] When the tobacco material is fed into the hopper 101, the moisture content of the batch of material can be detected in a timely manner by the online moisture detector 19. As the drying process progresses, the online moisture detector 19 is moved to the discharge end of the discharge conveyor belt 17 to detect the moisture content of the dried material. Thus, with the use of one set of online moisture detector 19, the moisture content detection of the incoming and outgoing materials can be effectively completed, thereby effectively reducing equipment costs.

[0054] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A drying device for processing tobacco shreds, characterized in that, include: The feeding assembly (1) includes a hopper (101) and a lifting conveyor belt (102) for conveying the tobacco material in the hopper (101); the discharge end of the hopper (101) is inclined and has a corresponding discharge port at its bottom end. A guide plate (104) supported by a corresponding elastic element (103) is swayably installed at the discharge port. The guide plate (104) is made of engineering plastic and includes a guide for the discharge port. A closed shielding part (1041) and a material guide part (1042) connected to the lower side of the shielding part (1041) are formed. A magnet block (105) is fixedly installed on the bottom side of the material guide part (1042). A plurality of engineering plastic lifting flanges (106) are fixedly connected to the outer surface of the lifting conveyor belt (102) at intervals. Magnetic metal pieces (107) corresponding to the positions of the magnet blocks (105) are pre-embedded on the lifting conveyor belt (102) in front of the lifting flanges (106). The vibration dispersion assembly (2) includes a feed guide chute (201) with its feed end connected to the discharge end of the lifting conveyor belt (102) and an ultrasonic vibration source (202) disposed at the bottom of the feed guide chute (201). The upper part of the feed guide chute (201) is provided with a corresponding cover (203). A set of pointed guide plates (204) is fixedly connected to the top of the cover (203) with its top facing downward. A rotating component (205) with a protrusion at one circumference is eccentrically mounted on the back side of the set of guide plates (204). An air duct (206) with its air outlet facing the rotating component (205) is installed on the set of guide plates (204). The drying device (3) is used to dry the tobacco material output from the feed chute (201). The drying device (3) is equipped with a waste heat recovery component (4). The hot air outlet of the waste heat recovery component (4) is connected to the air inlet of the air duct (206) through a corresponding exhaust fan (5).

2. The drying equipment for tobacco processing according to claim 1, characterized in that, The drying device (3) includes a drying drum (301) driven by a corresponding rotation drive mechanism (6). The feed end of the drying drum (301) is connected to the discharge end of the material guide chute (201). The inner wall of the drying drum (301) is provided with a turning feed plate (302). At least one corresponding electric heater (303) is provided on the outer side of the drying drum (301). The waste heat recovery assembly (4) includes an isolation sleeve (401) rotatably sleeved on the outer side of the drying drum (301). The electric heater (303) is fixedly installed on the bottom side of the isolation sleeve (401). One side of the isolation sleeve (401) is provided with a corresponding air inlet (4011). The other side of the isolation sleeve (401) is connected to an exhaust pipe (402). The exhaust pipe (402) is connected to the air inlet of the air guide pipe (206) through the exhaust fan (5).

3. The drying equipment for tobacco processing according to claim 2, characterized in that, The rotation drive mechanism (6) includes a transmission gear ring (601) fixed to the drying drum (301), which is meshed with a drive gear (603) at the output shaft end of the corresponding drive motor (602).

4. The drying equipment for tobacco processing according to claim 2, characterized in that, The drying drum (301) is evenly provided with a plurality of corresponding fixed tubes (8), and each fixed tube (8) is respectively installed with a corresponding arc-shaped cover plate (7) facing inward. Each arc-shaped cover plate (7) is provided with a plurality of corresponding air vents (701). Each fixed tube (8) is movably installed with a piston (9), and each piston (9) is longitudinally movably installed with a plurality of guide shafts (10) with end-connected limit components. Each guide shaft (10) is fixed with a corresponding annular cover plate (11), and each piston (9) between two adjacent guide shafts (10) is provided with a corresponding guide hole (12). The piston is driven by a corresponding piston motor. The piston (9) is driven by the mechanism. When the arc-shaped cover plate (7) passes the bottom end of the isolation sleeve (401) as the drying drum (301) rotates, the piston driving mechanism drives the piston (9) to move inward so that hot air is blown out through the vent hole (701) of the arc-shaped cover plate (7). When the arc-shaped cover plate (7) leaves the bottom end of the isolation sleeve (401), the piston driving mechanism drives the piston (9) to move outward and reset, so that the annular cover plate (11) and the piston (9) are spaced apart, so that hot air enters the fixed tube (8) on the upper side of the piston (9) through the guide hole (12).

5. The drying equipment for tobacco processing according to claim 4, characterized in that, The piston drive mechanism includes a fixed rod (1301) fixed to the outside of the piston (9), a limiting plate (1302) fixed to the fixed rod (1301), a corresponding compression spring (1303) connected between the limiting plate (1302) and the outer side wall of the drying drum (301), and a corresponding support roller (1304) rotatably mounted on the outer side of the limiting plate (1302). A diagonal brace (1305) for guiding the support roller (1304) is fixed to the isolation sleeve (401), and the electric heater (303) is fixedly installed in the isolation sleeve (401) on the bottom side of the diagonal brace (1305).

6. The drying equipment for tobacco processing according to claim 5, characterized in that, The arc-shaped cover plate (7) can be detachably installed onto the fixed pipe (8) via a threaded connection.

7. The drying equipment for tobacco processing according to claim 1, characterized in that, The feeding assembly (1), the vibration dispersion assembly (2) and the drying device (3) are respectively fixedly installed on the corresponding workbench (14), and the workbench (14) is fixedly installed with an isolation cover (15) for isolating the feeding assembly (1), the vibration dispersion assembly (2) and the drying device (3).

8. The drying equipment for tobacco processing according to claim 7, characterized in that, The workbench (14) is provided with a material guide conveyor belt (16) located at the discharge end of the drying device (3), and the discharge end of the material guide conveyor belt (16) is provided with a discharge conveyor belt (17) for outputting the dried extended material.

9. A drying device for tobacco processing according to claim 8, characterized in that, A corresponding support (18) is fixedly installed between the discharge end of the discharge conveyor belt (17) and the hopper (101), and a corresponding online moisture detector (19) is movably installed between the supports (18).

10. A drying device for tobacco processing according to claim 9, characterized in that, The online moisture analyzer (19) is driven by a corresponding lead screw drive mechanism (20).

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