A sectional drum type cylinder dryer

Abstract

The utility model discloses a sectional type cylinder cut tobacco dryer relates to tobacco drying equipment technical field, and its technical main points include shell, front roller, rear roller and hot -blast dispersion mechanism, and the front roller and rear roller are installed respectively in the both sides inside the shell rotation, all be provided with hot -blast dispersion mechanism in the front roller and rear roller, the hot -blast dispersion mechanism includes the fixed seat of fixed mounting at the end of shell, the hot -blast pipe of rotation mounting on fixed seat and be used for driving the drive part of hot -blast pipe rotation, the surface fixed connection of hot -blast pipe has several even distribution's dispersion rod, the surface of hot -blast pipe and dispersion rod all are provided with the air outlet hole. Technical effect is through setting up hot -blast dispersion mechanism, can increase the contact area of cut tobacco inside and hot -blast, accelerate the drying speed of cut tobacco inside, and reduce cut tobacco knotting phenomenon, make the drying consistency of cut tobacco improve.

Description

Technical Field

[0001] This utility model relates to the technical field of tobacco drying equipment, specifically a segmented drum drying machine. Background Technology

[0002] Tobacco drying is a crucial step in the tobacco processing industry. The goal of tobacco leaf drying is to remove some of the moisture from the tobacco leaves to achieve specified moisture requirements and precision, while simultaneously increasing the filling value, reducing harshness and off-flavors, and improving the overall taste. The drying process typically employs heat conduction and convection to heat the damp tobacco leaves, causing the moisture to evaporate into the drying cylinder. This moisture is then carried out of the cylinder by airflow, continuously reducing the moisture content of the tobacco leaves until the desired dryness is achieved.

[0003] Currently, the drum dryers commonly used by tobacco processing enterprises both domestically and internationally for drying tobacco shreds primarily utilize a combination of heat conduction through the drum wall and hot air convection to simultaneously heat and dry the moist tobacco shreds. These dryers have reached a high level in terms of structure, performance, and reliability, and can basically meet the requirements of the drying process. However, current drying processes place certain demands on drum dryers, resulting in material clumping. The clumped material exhibits a large difference in moisture content between its internal and external parts. This is because the tobacco shreds are continuously turned up by the frying plate and then fall, forming clumps during this process. The internal moisture content differs from the external moisture content, leading to a large moisture deviation.

[0004] The segmented drum drying machine disclosed in announcement number CN201758752U is divided into two sections, the feeding section and the discharging section, based on temperature differences. The temperature is controlled separately for each section, and hot oil temperature control is used. The temperature is precise, which reduces the moisture deviation of the tobacco shreds. However, since it is a whole drying drum, the tobacco shreds are still turned over by the stir-frying plate, and the tobacco shreds clump together. The problem of clumping and moisture deviation within the clumps cannot be solved, resulting in low drying uniformity of the tobacco shreds.

[0005] Therefore, we propose a segmented drum drying machine. Utility Model Content

[0006] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a segmented drum drying machine, which solves the problem that in existing technologies, because the drying drum is a whole, the tobacco shreds are still turned over by the stir-frying plate, causing the tobacco shreds to clump together, and the clumping and moisture deviation within the clumps still cannot be solved, resulting in low drying uniformity of the tobacco shreds.

[0007] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a segmented drum drying machine, comprising a shell, a front drum, a rear drum, and a hot air dispersion mechanism, wherein the front drum and the rear drum are respectively rotatably installed on both sides inside the shell, and a hot air dispersion mechanism is provided inside both the front drum and the rear drum; The hot air dispersion mechanism includes a fixed base fixedly installed at the end of the outer shell, a hot air pipe rotatably installed on the fixed base, and a driving component for driving the hot air pipe to rotate. Several evenly distributed dispersion rods are fixedly connected to the surface of the hot air pipe, and air outlet holes are opened on the surface of the hot air pipe and the dispersion rods.

[0008] As a preferred technical solution, the interior of the housing is provided with a first driving mechanism and a second driving structure for driving the front roller and the rear roller to rotate, respectively.

[0009] As a preferred technical solution, a sealing structure is provided at the connection between the front roller and the rear roller.

[0010] As a preferred technical solution, a first stir-fry plate and a second stir-fry plate are fixedly connected to the inner walls of the front roller and the rear roller, respectively.

[0011] As a preferred technical solution, the fixing base is a hollow structure, and the driving component is disposed inside the fixing base.

[0012] As a preferred technical solution, the driving component includes a motor fixedly installed in a fixed base, a main gear fixedly connected to the output end of the motor, and a driven gear fixedly connected to the hot air pipe, wherein the main gear meshes with the driven gear.

[0013] As a preferred technical solution, a filter screen is fixedly connected inside the air outlet.

[0014] As a preferred technical solution, a rotary joint is provided at one end of the hot air duct.

[0015] As a preferred technical solution, the inner walls of both the front and rear rollers are fixedly connected to brackets, and the end of the hot air pipe away from the fixed seat rotates on the bracket.

[0016] As a preferred technical solution, a controller is provided on the outer wall of the housing.

[0017] (III) Beneficial Effects Compared with the prior art, this utility model provides a segmented drum drying machine for filaments, which has the following advantages: 1. This utility model, by setting up a front roller and a rear roller, allows the tobacco shreds to be conveyed into the front roller via a vibrating conveyor during the drying process. The first drive mechanism and the second drive structure are then activated to drive the front roller and the rear roller to rotate in opposite directions. The first stir-frying plate in the front roller tumbles the tobacco shreds. After rolling in the front roller, the tobacco shreds gradually enter the rear roller, where the first stir-frying plate tumbles the tobacco shreds in the opposite direction, causing the tobacco shreds to disperse and initially reducing the phenomenon of tobacco shreds clumping.

[0018] 2. This utility model, by setting up a hot air dispersion mechanism, allows for the connection of a hot air pipe to a hot air supply pipeline via a rotary joint during the drying of tobacco shreds. After the hot air enters the hot air pipe, a portion of the hot air is directly blown out from the air outlet on the surface of the hot air pipe, while the other portion enters the dispersion rod and is blown out from the air outlet on the surface of the dispersion rod. This directly applies the hot air to the interior of the tobacco shreds, increasing the contact area between the interior of the tobacco shreds and the hot air, thus accelerating the drying speed of the tobacco shreds. Simultaneously, a motor can be started to drive the main gear to rotate, which in turn drives the driven gear to rotate, which in turn drives the hot air pipe to rotate, which in turn drives the dispersion rod to rotate. The dispersion rod disperses the tobacco shreds, thereby further reducing the clumping of the tobacco shreds and improving the uniformity of tobacco drying. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the hot air dispersion mechanism of this utility model; Figure 4 This is a schematic diagram of the support structure of this utility model; Figure 5 This is a schematic diagram of the overall structure of another design proposed in this utility model.

[0020] In the picture: 1. Casing; 11. Controller; 2. Front roller; 21. First drive mechanism; 22. First stir-fry plate; 3. Rear roller; 31. Second drive structure; 32. Second stir-fry plate; 4. Hot air dispersion mechanism; 41. Fixed base; 42. Hot air duct; 43. Driving component; 431. Motor; 432. Main gear; 433. Driven gear; 44. Dispersion rod; 45. Air outlet; 46. Filter screen; 47. Rotary joint; 48. Bracket; 49. Hot air outlet; 5. Sealed structure; 6. Steam-heated rotary joint. Detailed Implementation

[0021] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0022] Example This utility model provides a technical solution: Please see Figures 1-4 A segmented drum drying machine is proposed, comprising a shell 1, a front drum 2, a rear drum 3, and a hot air dispersing mechanism 4. A controller 11 is installed on the outer wall of the shell 1. The front drum 2 and the rear drum 3 are respectively rotatably installed on both sides inside the shell 1. The interior of the shell 1 is provided with a first drive mechanism 21 and a second drive structure 31 for driving the rotation of the front drum 2 and the rear drum 3, respectively. A first stir-frying plate 22 and a second stir-frying plate 32 are respectively fixedly connected to the inner walls of the front drum 2 and the rear drum 3. By setting the front drum 2 and the rear drum 3, when drying tobacco, the tobacco is conveyed into the front drum 2 by a vibrating conveyor. The first drive mechanism 21 and the second drive structure 31 are started to drive the front drum 2 and the rear drum 3 to rotate, respectively. The rotation of the front drum 2 and the rear drum 3 is opposite. The first stir-frying plate 22 in the front drum 2 tumbles the tobacco. After rolling in the front drum 2, the tobacco gradually enters the rear drum 3. The second stir-frying plate 32 in the rear drum 3 tumbles the tobacco in the opposite direction, causing the tobacco clumps to disperse and the phenomenon of tobacco clumping to be initially reduced.

[0023] The above-mentioned segmented design of the front roller 2 and rear roller 3 allows for personalized settings of parameters such as temperature and rotation speed within each roller, thus adapting to the requirements of more products.

[0024] A sealing structure 5 is provided at the connection between the front roller 2 and the rear roller 3. By providing the sealing structure 5, a sealing effect can be achieved at the connection between the front roller 2 and the rear roller 3.

[0025] Specifically, both the front roller 2 and the rear roller 3 are equipped with a hot air dispersion mechanism 4. The hot air dispersion mechanism 4 includes a fixed base 41 fixedly installed at the end of the outer shell 1, a hot air pipe 42 rotatably installed on the fixed base 41, and a driving component 43 for driving the hot air pipe 42 to rotate. The fixed base 41 is a hollow structure, and the driving component 43 is installed inside the fixed base 41. Several evenly distributed dispersion rods 44 are fixedly connected to the surface of the hot air pipe 42. The dispersion rods 44 are hollow structures. Air outlet holes 45 are opened on the surface of the hot air pipe 42 and the dispersion rods 44. A filter screen 46 is fixedly connected inside the air outlet hole 45. A rotary joint 47 is provided at one end of the hot air pipe 42. By setting up a hot air dispersion mechanism 4, when drying tobacco shreds, the hot air pipe 42 can be connected to the hot air supply pipeline through the rotary joint 47. After the hot air enters the hot air pipe 42, part of the hot air will be blown out directly from the air outlet 45 on the surface of the hot air pipe 42, and the other part of the hot air will enter the dispersion rod 44 and be blown out from the air outlet 45 on the surface of the dispersion rod 44. The hot air is directly applied to the inside of the tobacco shreds, increasing the contact area between the inside of the tobacco shreds and the hot air, and accelerating the drying speed of the inside of the tobacco shreds. At the same time, the drive component 43 can be activated to drive the hot air pipe 42 to rotate, so that the hot air pipe 42 drives the dispersion rod 44 to rotate. The dispersion rod 44 disperses the tobacco shreds, thereby further reducing the phenomenon of tobacco shreds clumping and improving the drying uniformity of the tobacco shreds.

[0026] Specifically, the driving component 43 includes a motor 431 fixedly installed in the fixed base 41, a main gear 432 fixedly connected to the output end of the motor 431, and a driven gear 433 fixedly connected to the hot air pipe 42. The main gear 432 and the driven gear 433 mesh. By setting the driving component 43, the motor 431 can be started to drive the main gear 432 to rotate, which in turn drives the driven gear 433 to rotate, and the driven gear 433 drives the hot air pipe 42 to rotate.

[0027] By setting up a filter screen 46, tobacco shreds can be prevented from entering the air outlet 45, thus preventing the air outlet 45 from becoming clogged.

[0028] The inner walls of the front roller 2 and the rear roller 3 are both fixedly connected with brackets 48. The end of the hot air pipe 42 away from the fixed seat 41 rotates on the bracket 48. By setting the bracket 48, the end of the hot air pipe 42 away from the fixed seat 41 can be supported, thereby improving the stability of the hot air pipe 42.

[0029] like Figure 5As shown, this embodiment also proposes another solution: after the hot air is connected to the hot air supply pipeline via the rotary joint 47, it enters from the front drum 2, a small portion is discharged from the hot air outlet 49 of the rear drum 3, and the remaining portion is circulated back to the inlet. The specific circulation pipeline and design should be conceived by those skilled in the art and will not be detailed here. Furthermore, each drum is independently equipped with drum wall heating and heating of the first stir-frying plate 22 and the second stir-frying plate 32. Specifically, the steam pipeline connects to the drum wall heating plate and the stir-frying plate via the steam heating rotary joint 6 for heating. During the drying process, heat conduction (steam heating of the drum wall and stir-frying plate) and heat convection (hot air) are used to heat the damp tobacco, causing the moisture in the damp tobacco to evaporate into the drum body and be carried out of the drum environment by the airflow inside the drum. The drying process continuously reduces the moisture content of the tobacco to achieve the drying purpose.

[0030] In practical use, the working principle of this utility model is as follows: First, when drying the tobacco, the hot air pipe 42 can be connected to the hot air supply pipe through the rotary joint 47. The tobacco is conveyed to the front roller 2 by the vibrating conveyor. The first drive mechanism 21 and the second drive structure 31 are started to drive the front roller 2 and the rear roller 3 to rotate respectively. The rotation of the front roller 2 and the rear roller 3 are opposite. The tobacco is tumbled by the first stir-fry plate 22 in the front roller 2. After rolling in the front roller 2, the tobacco gradually enters the rear roller 3. The second stir-fry plate 32 in the rear roller 3 tumbles the tobacco in the opposite direction, so that the tobacco clumps are dispersed and the phenomenon of tobacco clumping is initially reduced.

[0031] During the tobacco drying process, after hot air enters the hot air pipe 42, part of the hot air will be blown out directly from the air outlet 45 on the surface of the hot air pipe 42, and the other part of the hot air will enter the dispersing rod 44 and be blown out from the air outlet 45 on the surface of the dispersing rod 44. The hot air will directly act on the inside of the tobacco, increasing the contact area between the inside of the tobacco and the hot air, and accelerating the drying speed of the inside of the tobacco. At the same time, the motor 431 can be started to drive the main gear 432 to rotate, which in turn drives the driven gear 433 to rotate, which in turn drives the hot air pipe 42 to rotate, which in turn drives the dispersing rod 44 to rotate. The dispersing rod 44 disperses the tobacco, thereby further reducing the phenomenon of tobacco clumping.

[0032] In order to prevent tobacco from entering the air outlet 45, a filter screen 46 is installed to intercept the tobacco and prevent it from entering the air outlet 45 and causing blockage.

[0033] The dried tobacco is gradually discharged from the rear end of the rear drum 3.

[0034] In summary, this segmented drum drying machine, by setting up a hot air dispersion mechanism 4, allows the hot air pipe 42 to be connected to the hot air supply pipeline via a rotary joint 47 during the drying of tobacco shreds. After the hot air enters the hot air pipe 42, part of the hot air will be blown out directly from the air outlet 45 on the surface of the hot air pipe 42, while the other part of the hot air will enter the dispersion rod 44 and be blown out from the air outlet 45 on the surface of the dispersion rod 44. This directly applies the hot air to the inside of the tobacco shreds, increasing the contact area between the inside of the tobacco shreds and the hot air, and accelerating the drying speed of the inside of the tobacco shreds. At the same time, the motor 431 can be started to drive the main gear 432 to rotate, which in turn drives the driven gear 433 to rotate, which in turn drives the hot air pipe 42 to rotate, which in turn drives the dispersion rod 44 to rotate. The dispersion rod 44 disperses the tobacco shreds, thereby further reducing the phenomenon of tobacco shreds clumping and improving the drying uniformity of the tobacco shreds.

[0035] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A segmented drum drying machine, comprising a shell (1), a front drum (2), a rear drum (3), and a hot air dispersing mechanism (4), characterized in that: The front roller (2) and the rear roller (3) are respectively rotatably installed on both sides inside the outer shell (1), and a hot air dispersion mechanism (4) is provided inside both the front roller (2) and the rear roller (3). The hot air dispersion mechanism (4) includes a fixed seat (41) fixedly installed at the end of the outer shell (1), a hot air pipe (42) rotatably installed on the fixed seat (41), and a driving component (43) for driving the hot air pipe (42) to rotate. Several evenly distributed dispersion rods (44) are fixedly connected to the surface of the hot air pipe (42), and air outlet holes (45) are opened on the surface of both the hot air pipe (42) and the dispersion rods (44).

2. A sectionalised drum dryer according to claim 1 characterised in that: The housing (1) is provided with a first drive mechanism (21) and a second drive structure (31) for driving the front roller (2) and the rear roller (3) to rotate.

3. A sectionalised drum dryer according to claim 1 characterised in that: A sealing structure (5) is provided at the connection between the front roller (2) and the rear roller (3).

4. A sectionalised drum dryer according to claim 1 characterised in that: The first stir-fry plate (22) and the second stir-fry plate (32) are fixedly connected to the inner walls of the front roller (2) and the rear roller (3), respectively.

5. A sectionalised drum dryer according to claim 1 characterised in that: The fixed base (41) is a hollow structure, and the driving component (43) is disposed inside the fixed base (41).

6. A sectionalised drum dryer according to claim 5, characterised in that: The drive unit (43) includes a motor (431) fixedly installed in a fixed base (41), a main gear (432) fixedly connected to the output end of the motor (431), and a driven gear (433) fixedly connected to the hot air pipe (42), wherein the main gear (432) meshes with the driven gear (433).

7. A sectionalised drum dryer according to claim 1 characterised in that: A filter screen (46) is fixedly connected inside the air outlet (45).

8. A sectionalised drum dryer according to claim 1 characterised in that: A rotary joint (47) is provided at one end of the hot air duct (42).

9. A sectionalised drum dryer according to claim 1 characterised in that: The inner walls of the front roller (2) and the rear roller (3) are both fixedly connected to brackets (48), and the end of the hot air pipe (42) away from the fixed seat (41) rotates on the bracket (48).

10. A sectionalised drum dryer according to claim 1 characterised in that: A controller (11) is provided on the outer wall of the outer casing (1).

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