Tobacco leaf energy-saving winnowing equipment and method

Abstract

The invention relates to the technical field of tobacco threshing and redrying, in particular to energy-saving tobacco winnowing equipment and method.The energy-saving tobacco winnowing equipment comprises a shell, an air separator is arranged in the shell and comprises a discharging cover, an air outlet A is formed in the top of the discharging cover, a separating bin is arranged at the bottom of the discharging cover, and a lower bin body is arranged at the bottom of the separating bin; supporting legs are arranged at the bottom of the lower bin body, and an air outlet B is formed in the bottom of the lower bin body. According to the energy-saving winnowing technology and equipment for the tobacco leaves, the hole mesh belt assembly is additionally arranged, the through hole rate can reach 45%, a polyester mesh belt is used for replacing a metal mesh plate with holes, wind resistance can be effectively reduced, holes of the polyester mesh belt are more uniform, the wind field in the separation bin is more uniform, and therefore the wind separation efficiency can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco leaf threshing and redrying, and in particular to energy-saving tobacco leaf air selection equipment and method. Background Art

[0002] In tobacco threshing and redrying enterprises, the threshing and air separator unit is a key link in tobacco processing. The dropper and air separator are the main equipment of the threshing and air separator unit, and are configured in large quantities on the production line. The main function of the air separator is to separate the leaves and stems entering the equipment under the action of the wind field, and the separated leaves enter the dropper with the gas; the main function of the dropper is to separate the leaves and gas entering the equipment.

[0003] The existing tobacco leaf energy-saving air sorting technology and equipment still have the following disadvantages: the air separation efficiency of the air separator is low, and the wind resistance of the dropper is reduced, and the sealing between the dropper and the suction drum is poor. Therefore, there is an urgent need for a tobacco leaf energy-saving air sorting equipment and method to improve the above problems. Summary of the invention

[0004] The object of the present invention is to solve at least one of the technical drawbacks.

[0005] To this end, an object of the present invention is to propose an energy-saving air selection device and method for tobacco leaves to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0006] In order to achieve the above-mentioned objectives, an embodiment of one aspect of the present invention provides an energy-saving air selection device and method for tobacco leaves, comprising a shell, an air separator is arranged inside the shell, the air separator comprises a discharge hood, an air outlet A is arranged at the top of the discharge hood, a separation bin is arranged at the bottom of the discharge hood, a lower bin body is arranged at the bottom of the separation bin, support legs are arranged at the bottom of the lower bin body, an air outlet B is opened at the bottom of the lower bin body, an auxiliary roller and a mesh belt assembly are arranged inside the lower bin body, an active roller is arranged at the top of the mesh belt assembly, and a guide plate A and a guide plate B are arranged at the bottom of the mesh belt assembly.

[0007] The present invention is further configured as follows: the perforated mesh belt assembly includes a side chain, a polyester mesh belt and a connecting plate are arranged at the bottom of the side chain, a pressure plate is arranged on one side of the polyester mesh belt, the polyester mesh belt is clamped inside the pressure plate, and the pressure plate is fixedly connected to one side of the connecting plate.

[0008] By adopting the above technical solution, a polyester mesh belt and a connecting plate are arranged at the bottom of the side chain to carry and transport the blades.

[0009] The present invention is further configured as follows: the separation bin is clamped on the top of the lower bin body, the discharge cover is fixedly connected to the top of the separation bin, and the guide plate A and the guide plate B are both fixedly connected to the inside of the lower shell body.

[0010] By adopting the above technical solution, the guide plate A and the guide plate B are both fixedly connected to the inside of the lower shell, playing the role of guiding the airflow and optimizing the wind path.

[0011] The present invention is further configured as follows: the active roller and the auxiliary roller are both rotatably connected to the inside of the lower warehouse body, and the side chain is rotatably connected to the outside of the active roller and the auxiliary roller.

[0012] The present invention is further configured as follows: a dropper is arranged on the outside of the shell, the dropper includes a shell, one side of the shell is provided with an inlet, the inside of the shell is provided with a suction drum, the other side of the shell is provided with a reducer, the bottom of the shell is provided with a discharge port, and both sides of the shell are provided with air outlets C.

[0013] By adopting the above technical solution, a suction drum is arranged inside the shell to help the blades separate impurities.

[0014] The present invention is further configured as follows: the suction drum comprises a perforated plate, a fixing ring is arranged on the top of the perforated plate, a bracket is arranged on the top of the fixing ring, a sealing cover is arranged on one side of the bracket, and a supporting ring is arranged on the bottom of the sealing cover.

[0015] By adopting the above technical solution, the suction drum includes a perforated plate, which plays a role in improving the separation accuracy of the blades.

[0016] The present invention is further configured as follows: the suction drum is fixedly connected to the inside of the shell, the shell is fixedly connected to both sides of the outer shell, and the reducer is fixedly connected to one side of the shell.

[0017] By adopting the above technical solution, the reducer is fixedly connected to one side of the housing, thereby playing a role in adjusting the operating speed of the equipment.

[0018] The present invention is further configured as follows: the fixing ring is fixedly connected to the top of the orifice plate, the orifice plate is fixedly connected to the support ring, and the sealing cover is fixedly connected to the inside of the bracket.

[0019] By adopting the above technical solution, the sealing cover is fixedly connected to the inside of the bracket, which plays a role in improving the sealing performance.

[0020] The present invention is further configured as follows: an internal circulation pipeline is arranged inside the shell, a feed port is arranged on one side of the outer shell, a feed port is arranged on one side of the lower warehouse body, and a fan is arranged on the top of the internal circulation pipeline.

[0021] By adopting the above technical solution, a fan is arranged on the top of the inner circulation pipeline, which plays a role in improving the air selection efficiency.

[0022] In summary, the beneficial technical effects of the present invention are:

[0023] 1. The energy-saving air selection technology and equipment for tobacco leaves can achieve a porosity of 45% by adding a mesh belt assembly. The polyester mesh belt is used to replace the metal mesh plate with holes, which can effectively reduce wind resistance. The openings of the polyester mesh belt are more uniform, making the wind field inside the separation bin more uniform, and the wind separation efficiency will be improved. The air volume required to separate the same amount of leaves will also be reduced, which can reduce the power of the fan and save energy. At the same time, the replacement of the polyester mesh belt is more convenient than that of the metal mesh plate with holes.

[0024] 2. The energy-saving air selection technology and equipment for tobacco leaves sets the sealing cover of the suction drum as a metal plate and connects it by welding, which can effectively prevent external air from entering the interior of the dropper. The above changes can effectively improve the sealing of the dropper.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the front view of the air divider of the present invention;

[0029] Figure 3 It is a structural schematic diagram of the lower bin body of the present invention;

[0030] Figure 4 It is a structural schematic diagram of a mesh belt assembly with holes of the present invention;

[0031] Figure 5 It is a structural schematic diagram of the left side of the housing of the present invention;

[0032] Figure 6 It is a structural schematic diagram of the front view of the blanking device of the present invention;

[0033] Figure 7 It is a structural schematic diagram of the left side of the suction drum of the present invention;

[0034] Figure 8 It is a structural schematic diagram of the left side of the material dropper of the present invention;

[0035] Fig. 9 It is a structural schematic diagram of the front view of the suction drum of the present invention.

[0036] In the figure: 1. outer shell; 2. air separator; 3. discharge hood; 4. air outlet A; 5. separation bin; 6. lower bin body; 7. support leg; 8. air outlet B; 9. auxiliary roller; 10. mesh belt assembly; 11. active roller; 12. guide plate A; 13. guide plate B; 14. side chain; 15. polyester mesh belt; 16. connecting plate; 17. pressure plate; 18. dropper; 19. shell; 20. inlet; 21. suction drum; 22. reducer; 23. discharge port; 24. air outlet C; 25. orifice plate; 26. fixing ring; 27. bracket; 28. sealing cover; 29. ​​support ring; 30. internal circulation pipeline; 31. feed port; 32. fan. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] Embodiment 1

[0039] Reference Figure 1 , Figure 2 and Figure 3 , is a tobacco leaf energy-saving air selection device and method disclosed in the present invention, comprising a shell 1, an air separator 2 is arranged inside the shell 1, the air separator 2 comprises a discharge hood 3, an air outlet A4 is arranged on the top of the discharge hood 3, a separation bin 5 is arranged at the bottom of the discharge hood 3, a lower bin body 6 is arranged at the bottom of the separation bin 5, a supporting leg 7 is arranged at the bottom of the lower bin body 6, an air outlet B8 is opened at the bottom of the lower bin body 6, an auxiliary roller 9 and a mesh belt assembly 10 are arranged inside the lower bin body 6, an active roller 11 is arranged on the top of the mesh belt assembly 10, and a guide plate A12 and a guide plate B13 are arranged at the bottom of the mesh belt assembly 10. In this embodiment, the shell 1 plays a role in protecting the internal structure of the equipment and preventing external interference, the air separator 2 plays a role in evenly distributing the airflow and ensuring uniform air selection effect, and the discharge hood 3 plays a role in collecting and discharging the airflow and impurities after air selection.

[0040] Reference Figure 3 and Figure 4The mesh belt assembly 10 includes a side chain 14, a polyester mesh belt 15 and a connecting plate 16 are arranged at the bottom of the side chain 14, a pressing plate 17 is arranged on one side of the polyester mesh belt 15, the polyester mesh belt 15 is clamped in the inside of the pressing plate 17, the pressing plate 17 is fixedly connected to one side of the connecting plate 16, the polyester mesh belt 15 is provided with a square hole, the size of which is 2mm×2mm, the wire diameter is 1mm, and the through-hole rate is 45%. In this embodiment, the side chain 14 plays a role of transmission and coordination, the polyester mesh belt 15 plays a role of facilitating air washing of the blades, and the pressing plate 17 plays a role of fixing the polyester mesh belt 15.

[0041] Reference Figures 2 to 6 The separation bin 5 is clamped on the top of the lower bin body 6, the discharge hood 3 is fixedly connected to the top of the separation bin 5, the guide plate A12 and the guide plate B13 are both fixedly connected to the inside of the lower shell body 19. In this embodiment, the separation bin 5 is used to separate tobacco leaves from impurities, and the guide plate A12 and the guide plate B13 both play the role of guiding the airflow to optimize the air selection path and improve the separation efficiency.

[0042] Reference Figure 2 , Figure 3 and Figure 4 The active roller 11 and the auxiliary roller 9 are both rotatably connected to the inside of the lower bin body 6, and the side chain 14 is rotatably connected to the outside of the active roller 11 and the auxiliary roller 9. In this embodiment, the active roller 11 and the auxiliary roller 9 drive the polyester mesh belt to move and transport tobacco leaves.

[0043] Reference Figure 1 , Figures 5 to 8 A dropper 18 is arranged on the outside of the outer shell 1, and the dropper 18 includes a shell 19, one side of the shell 19 is provided with an inlet 20, the inside of the shell 19 is provided with a suction drum 21, the other side of the shell 19 is provided with a reducer 22, the bottom of the shell 19 is provided with a discharge port 23, and both sides of the shell 19 are provided with air outlets C24. In this embodiment, the dropper 18 serves to discharge the separated tobacco leaves and impurities from the equipment, and the suction drum 21 serves to generate suction to help separate the tobacco leaves from the impurities.

[0044] Reference Figure 8 and Fig. 9 The suction drum 21 includes a perforated plate 25, a fixing ring 26 is provided on the top of the perforated plate 25, a bracket 27 is provided on the top of the fixing ring 26, a sealing cover 28 is provided on one side of the bracket 27, and a supporting ring 29 is provided on the bottom of the sealing cover 28. In this embodiment, the perforated plate 25 serves to further refine the airflow and improve the separation accuracy, and the sealing cover 28 serves to ensure the internal sealing of the equipment and prevent airflow leakage.

[0045] Reference Figure 1 and Figure 6The suction drum 21 is fixedly connected to the inside of the shell 19, the shell 19 is fixedly connected to both sides of the outer shell 1, and the reducer 22 is fixedly connected to one side of the shell 19. In this embodiment, the shell 19 plays a role in protecting the internal structure of the equipment, and the reducer 22 plays a role in adjusting the operating speed of the equipment to ensure a stable air selection effect.

[0046] Reference Fig. 9 The fixing ring 26 is fixedly connected to the top of the orifice plate 25, the orifice plate 25 is fixedly connected to the support ring 29, the sealing cover 28 is fixedly connected to the inside of the bracket 27, the orifice plate 25 is provided with a circular hole with a diameter of 2.5 mm, a hole pitch of 3.5 mm, and a staggered angle of the circular holes of 60 degrees. In this embodiment, the support ring 29 plays the role of fixing the orifice plate 25.

[0047] Reference Figure 1 , Figure 2 and Figure 6 An internal circulation pipeline 30 is arranged inside the shell 19, a feed port 31 is arranged on one side of the outer shell 1, a feed port 31 is arranged on one side of the lower bin body 6, and a fan 32 is arranged on the top of the internal circulation pipeline 30. In this embodiment, the internal circulation pipeline 30 serves to realize the internal circulation of the airflow and improve the air selection efficiency, and the fan 32 serves to provide the airflow power required for air selection.

[0048] The implementation principle of this embodiment is:

[0049] The mixture of blades and tobacco stems enters the interior of the feed port 31, passes through the air separator 2, and is thrown into the interior of the separation bin 5. The gas enters the lower bin body 6 from the air inlet. Under the action of the guide plate A12, the guide plate B13 and the perforated mesh belt assembly 10, the gas evenly enters the interior of the separation bin 5. Since the perforated mesh belt assembly 10 has a high porosity and a more uniform distribution of holes, the wind field distribution in the separation bin 5 is more uniform, which effectively improves the wind separation efficiency and increases the wind separation cross-section. In the separation bin 5, the blades will follow the rising airflow into the interior of the discharge hood 3, and then use the outlet corresponding to the dropper 18 to make the blades be discharged from the interior of the discharge hood 3 into the interior of the shell 19. Under the action of the eccentricity, the blades are separated from the discharge port 23, and the gas enters the interior of the fan 32 through the air outlet C24.

[0050] Compared with the prior art, the present invention has the following beneficial effects:

[0051] By adding the perforated mesh belt assembly 10, the porosity can reach 45%. Using the polyester mesh belt 15 to replace the metal perforated mesh plate can effectively reduce wind resistance, and the openings of the polyester mesh belt 15 are more uniform, so that the wind field inside the separation bin 5 is also more uniform, and the wind separation efficiency will also be improved. The amount of air required to separate the same amount of blades will also be reduced, which can reduce the power of the fan 32 and save energy. At the same time, the replacement of the polyester mesh belt 15 is more convenient than the metal perforated mesh plate. The sealing cover 28 of the suction drum 21 is set to a metal plate and connected by welding, which can effectively prevent external air from entering the interior of the dropper 18. The above changes can effectively improve the sealing of the dropper 18.

[0052] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tobacco leaf energy-saving air selection device and method, characterized in that: The invention comprises a shell (1), wherein an air separator (2) is arranged inside the shell (1), wherein the air separator (2) comprises a discharge hood (3), wherein an air outlet A (4) is arranged at the top of the discharge hood (3), wherein a separation bin (5) is arranged at the bottom of the discharge hood (3), wherein a lower bin body (6) is arranged at the bottom of the separation bin (5), wherein supporting legs (7) are arranged at the bottom of the lower bin body (6), wherein an air outlet B (8) is opened at the bottom of the lower bin body (6), wherein an auxiliary driving roller (9) and a mesh belt assembly (10) are arranged inside the lower bin body (6), wherein an active roller (11) is arranged at the top of the mesh belt assembly (10), and wherein a guide plate A (12) and a guide plate B (13) are arranged at the bottom of the mesh belt assembly (10).

2. The energy-saving tobacco leaf air selection device and method according to claim 1, characterized in that: The mesh belt assembly (10) comprises a side chain (14), a polyester mesh belt (15) and a connecting plate (16) are arranged at the bottom of the side chain (14), a pressing plate (17) is arranged on one side of the polyester mesh belt (15), the polyester mesh belt (15) is clamped inside the pressing plate (17), the pressing plate (17) is fixedly connected to one side of the connecting plate (16), and the polyester mesh belt (15) is provided with square holes with a size of 2 mm×2 mm, a wire diameter of 1 mm, and a through-hole rate of 45%.

3. The energy-saving tobacco leaf air selection device and method according to claim 1, characterized in that: The separation bin (5) is snap-connected to the top of the lower bin body (6), the discharge cover (3) is fixedly connected to the top of the separation bin (5), and the guide plate A (12) and the guide plate B (13) are both fixedly connected to the inside of the lower shell body (19).

4. The energy-saving tobacco leaf air selection device and method according to claim 1, characterized in that: The active roller (11) and the auxiliary roller (9) are both rotatably connected to the interior of the lower bin body (6), and the side chain (14) is rotatably connected to the outside of the active roller (11) and the auxiliary roller (9).

5. The energy-saving tobacco leaf air selection device and method according to claim 1, characterized in that: A material dropper (18) is arranged on the outside of the housing (1), and the material dropper (18) comprises a shell (19), an inlet (20) is arranged on one side of the shell (19), a suction drum (21) is arranged inside the shell (19), a reducer (22) is arranged on the other side of the shell (19), a material discharge port (23) is opened at the bottom of the shell (19), and air outlets C (24) are arranged on both sides of the shell (19).

6. The energy-saving tobacco leaf air selection device and method according to claim 5, characterized in that: The suction drum (21) comprises a perforated plate (25), a fixing ring (26) is arranged on the top of the perforated plate (25), a bracket (27) is arranged on the top of the fixing ring (26), a sealing cover (28) is arranged on one side of the bracket (27), and a supporting ring (29) is arranged on the bottom of the sealing cover (28).

7. The energy-saving tobacco leaf air selection device and method according to claim 5, characterized in that: The suction drum (21) is fixedly connected to the inside of the shell (19), the shell (19) is fixedly connected to both sides of the outer shell (1), the reducer (22) is fixedly connected to one side of the shell (19), and the sealing cover (28) is made of a metal plate.

8. The energy-saving tobacco leaf air selection device and method according to claim 6, characterized in that: The fixing ring (26) is fixedly connected to the top of the orifice plate (25), the orifice plate (25) is fixedly connected to the support ring (29), the sealing cover (28) is fixedly connected to the inside of the bracket (27), the orifice plate (25) is provided with circular holes with a diameter of 2.5 mm, a hole pitch of 3.5 mm, and a staggered angle of 60 degrees.

9. The tobacco leaf energy-saving air selection device and method according to claim 1, characterized in that: An internal circulation pipeline (30) is arranged inside the shell (19), a feed port (31) is arranged on one side of the outer shell (1), a feed port (31) is arranged on one side of the lower bin body (6), and a fan (32) is arranged on the top of the internal circulation pipeline (30).

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