Device for improving steam fluidity of tobacco vacuum moisture regaining turnover box and turnover box
By incorporating a breathable pad body and support plate structure within the turnover box, the problem of low center temperature caused by mesh blockage was solved, steam permeability and production stability were improved, cleaning difficulty was reduced, and higher production continuity and product quality were achieved.
Patent Information
- Application Number
- CN202520650565.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-08
AI Technical Summary
The existing tobacco vacuum rehumidification turnover box is prone to clogging, which makes it difficult for steam to pass through the inside of the tobacco stack, resulting in a low center temperature, which affects production stability and product quality.
A breathable pad body is installed inside the turnover box. The breathable pad body has bends and mounting holes on both sides, ventilation holes on the surface, and is wrapped with a mesh on the outside. The support plate is welded to the breathable pad body and has through holes. The breathable pad body is 50-70mm high and is installed on the inside of the bottom beam and side beam of the turnover box to enhance breathability and support stability.
It improves steam permeability, solves the problem of low center temperature, enhances production stability and equipment continuity, and reduces cleaning difficulty and manual labor intensity.
Smart Images
Figure CN223919865U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of tobacco production turnover equipment, specifically relating to a device for improving the steam flow of a tobacco vacuum rehumidification turnover box and the turnover box itself. Background Technology
[0002] The vacuum rehumidifier heats and humidifies the cut tobacco stacks to improve their softness and resistance to breakage, loosen them (for easier uniform mixing), kill insect eggs, and reduce the green and impurity odors in the tobacco to meet the processing needs of subsequent processes. Its core process indicator is the center temperature of the tobacco stack after processing.
[0003] The turnover box, as an auxiliary device to the vacuum rehumidifier, is used to load tobacco stacks. The box body uses a perforated plate as a support surface to ensure air permeability of the box walls, and a wire mesh lining (not shown in the figure) is installed inside the perforated plate to prevent tobacco leaves from sticking and to facilitate cleaning of the turnover box. Figures 1 to 3 As shown, the container includes an outer frame 1. Five surfaces of the outer frame 1 come into contact with the tobacco stack inside the container. These five surfaces are divided into a front surface 2, a rear surface 3, a left side surface 4, a right side surface 5, and a bottom surface 7. Ventilation holes 6 are provided on the perforated plate. In actual production, it was found that the anti-adhesion properties of the lining mesh were poor, with large areas of lining mesh blockage on the BDE surfaces, resulting in the center temperature of the tobacco stack not meeting the standard after processing. The main reason is that the adhesion of the tobacco leaves increases after heating and humidifying. Under the influence of the weight of the tobacco stack itself (200 kg / stack), the tobacco leaves on the bottom and side surfaces of the stack are squeezed and block the lining mesh, thus hindering steam penetration. This makes it difficult for steam to penetrate the interior of the stack, resulting in a cold core phenomenon and the tobacco leaves clumping together. Large-area clumping of tobacco leaves leads to problems in subsequent production processes, such as the easy jamming and shutdown of rake rollers, the appearance of clumps of tobacco leaves at the outlet of the rear loosening and rehumidifying machine, and easy blockage of the metering tube, affecting production stability and continuity, and adversely impacting product quality.
[0004] To address the issue of low core temperature caused by extensive blockage of the lining mesh, the main considerations are the lining mesh material, mesh count, increasing the vacuum rehydration steam flow rate, and extending the vacuum rehydration processing time. However, currently, stainless steel is commonly used for lining meshes, and changing the material has extremely limited effect on improving the problem. The choice of mesh count is also limited; existing mesh counts are already quite large. Increasing the mesh count, given a fixed lining area, would require reducing the wire diameter to ensure sufficient air permeability, but this would reduce wear resistance and increase the likelihood of lining breakage. Changing the steam flow rate and processing time would affect the final processing results of the tobacco leaves; deviations from the process requirements would lead to quality defects. Utility Model Content
[0005] The purpose of this invention is to provide a device and container for improving the steam flow of a tobacco vacuum rehumidification container, so as to solve the problems existing in the background art.
[0006] To achieve the above object, the application is realized by the following technical scheme:
[0007] The device for improving steam flowability of a tobacco vacuum conditioning turnover box comprises a ventilation pad body, a bending part is arranged on both sides of the ventilation pad body, and a mounting hole is arranged on the bending part.
[0008] Support plates are uniformly arranged at both ends and inside of the ventilation pad body, and through holes are arranged on the support plates at both ends of the ventilation pad body.
[0009] Ventilation holes are uniformly arranged on the ventilation pad body, and a lining net is wrapped outside the ventilation pad body.
[0010] Further, the ventilation pad body is in an inverted V shape or a trapezoidal shape.
[0011] Further, the height of the ventilation pad body is 50-70 mm, and the width between the two bending parts is less than or equal to the width of the bottom beam of the turnover box.
[0012] Further, the ventilation holes are round holes with a diameter of 2 mm.
[0013] A turnover box comprises a turnover box body and the device for improving steam flowability of a tobacco vacuum conditioning turnover box as described in any one of the above.
[0014] Further, the turnover box body comprises a bottom outer beam and a side wall outer beam, and the device for improving steam flowability of a tobacco vacuum conditioning turnover box is arranged directly above each bottom outer beam and on the inner side of each side wall outer beam.
[0015] Further, the upper end of the device for improving steam flowability of a tobacco vacuum conditioning turnover box is higher than the bottom surface hole plate of the turnover box by 5-10 mm.
[0016] Further, a lining net is arranged inside the hole plate of the turnover box.
[0017] The device for improving steam flowability of a tobacco vacuum conditioning turnover box has the following beneficial effects:
[0018] The device for improving steam flowability of a tobacco vacuum conditioning turnover box is arranged uniformly in the turnover box, the tobacco stack is lifted by 70 mm, a small support surface is used to stably support the tobacco stack, the contact area of the tobacco stack and the lining net of the turnover box is reduced, the ventilation area of the lining net of the turnover box as a whole is increased, the adhesion is reduced and the steam permeability is increased, the problem of low central temperature caused by large-area blockage of the lining net is solved, the process quality stability and the equipment operation continuity are improved, the manual labor intensity for cleaning the turnover box is reduced, and the cleaning efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a schematic view of the present turnover box structure.
[0020] Figure 2 It is a bottom view of the present turnover box.
[0021] Figure 3 It is a front view of the present turnover box.
[0022] Figure 4 It is a schematic view of the steam flowability device for improving the tobacco vacuum conditioning turnover box.
[0023] Figure 5 It is a front view of the steam flowability device for improving the tobacco vacuum conditioning turnover box.
[0024] Figure 6 It is a bottom view of the steam flowability device for improving the tobacco vacuum conditioning turnover box.
[0025] Figure 7 It is a side view of the steam flowability device for improving the tobacco vacuum conditioning turnover box.
[0026] Figure 8 It is a schematic view of the turnover box after removing the hole plate.
[0027] Explanation of reference signs:
[0028] 1, outer frame of the turnover box; 2, front end face; 3, rear end face; 4, left side face; 5, right side face; 6, air hole; 7, bottom face; 8, bottom outer beam; 91, horizontal outer beam; 92, vertical outer beam; 10, air-permeable pad body; 11, bending part; 12, support plate; 13, mounting hole; 14, through hole; 15, air hole. DETAILED DESCRIPTION
[0029] The technical scheme of the present application will be described in detail below in combination with the drawings, and the following examples are only exemplary and can only be used to explain and illustrate the technical scheme of the present application, but cannot be interpreted as a limitation of the technical scheme of the present application.
[0030] As shown in Figures 4 to 7 the present application relates to a steam flowability device for improving the tobacco vacuum conditioning turnover box, which comprises an air-permeable pad body 10, in the present application, the air-permeable pad body 10 is an integral structure formed by bending a metal plate, in other embodiments of the present application, two or more metal plates are also welded to achieve the technical scheme of the present application. Specifically, the metal plate is punched or bent into an inverted V-shaped or trapezoidal shape, in the present embodiment, if the air-permeable pad body is a trapezoidal shape, it is an isosceles trapezoidal shape, and the width of the upper base is less than the width of the bottom opening.
[0031] When bending, the lower part of the two sides of the air permeable pad body is bent or punched outward to form a bending part 11, and the lower bottom surface of the two bending parts is in the same plane to facilitate installation in the turnover box. A plurality of mounting holes 13 are equidistantly arranged on each bending part for mounting the tobacco lifting vacuum conditioning turnover box steam flowability device in the turnover box.
[0032] In order to ensure the air permeability of the air permeable pad body, the air holes 15 are punched by the same laser array type punching process as the wall of the turnover box. The diameter of the air holes 15 is 2 mm. In other embodiments of the present application, in order to reduce the tobacco passing through the air holes, the axial section of the air holes is designed as an isosceles trapezoid, that is, the opening diameter of the air holes on the outer surface of the air permeable pad body is smaller than the opening diameter of the air holes on the inner surface of the air permeable pad body. Such a structure can effectively prevent tobacco from passing through the air holes and also does not affect the air permeability.
[0033] In order to ensure the structural strength of the air permeable pad body, support plates 12 that match the inner side are uniformly welded on the inner side and both ends of the air permeable pad body. In the present embodiment, five support plates are welded on each air permeable pad body, and the two support plates at both ends of the air permeable pad body are coplanar with the end faces of the air permeable pad body, thereby closing the internal space of the air permeable pad body (here, it refers to the internal space formed after being installed on the bottom beam or side beam of the turnover box. When not installed in the turnover box, the lower part of the air permeable pad body is an open structure), preventing tobacco from entering the inside of the air permeable pad body, and a through hole 14 is provided on the outermost two support plates, which is located at the center of the support plate body and wrapped with the same type of liner net as the turnover box (not shown in the figure) on the outside of the air permeable pad body to reduce tobacco adhesion.
[0034] In the present application, considering the distance between the cutting tool tip and the bottom of the turnover box during the previous cutting process, the height of the air permeable pad body 10 is designed to be 50-70 mm, preferably 70 mm, and the length of the air permeable pad body is 1000 mm according to the width of the bottom surface of the matched turnover box body. In the present application, the width of the air permeable pad body including the bending parts on both sides is consistent with the width of the outer beam of the turnover box bottom.
[0035] As shown in Figure 8 and referring to Figures 1 to 7 , the present application also relates to a turnover box comprising a turnover box body and the tobacco lifting vacuum conditioning turnover box steam flowability device of any one of the above.
[0036] In the present application, the turnover box body is a prior art, that is, a turnover box that is already in use. For details, please refer to Figures 1 to 3As shown, the turnover box outer frame 1 is provided with hole plates as support surfaces on the bottom surface, the front end surface, the rear end surface, the left side surface and the right side surface of the six surfaces formed by the turnover box outer frame 1, and the air holes 6 on the hole plates are punched by using a laser array type punching process to ensure the air permeability of the side wall of the turnover box, and a wire prepared lining net (not shown in the figure) is installed on the inner side of each hole plate to prevent the tobacco from adhering and facilitate the cleaning of the turnover box. A bottom outer beam 8 is arranged below the bottom plate of the lower bottom surface, a side wall outer beam is arranged on the outer side of the hole plate of the front end surface, the rear end surface, the left side surface and the right side surface, and the side wall outer beam comprises a horizontal side outer beam 91 and a vertical side outer beam 92. The above are the structures of the existing turnover box, and the skilled in the art is very clear about the structure of the existing turnover box, therefore, the applicant will not make more detailed description and description.
[0037] In the present application, the tobacco lifting vacuum moisture conditioning turnover box steam flow device is installed directly above the bottom outer beam, and since the bottom surface of the existing turnover box has four bottom outer beams, four tobacco lifting vacuum moisture conditioning turnover box steam flow devices are installed. At the same time, considering that the pressure bearing capacity of the side surface of the existing turnover box is less than that of the bottom surface, only one tobacco lifting vacuum moisture conditioning turnover box steam flow device is installed on the inner side surface of the horizontal outer beam at the middle position of the side wall outer beam of each side of the turnover box to prevent the tobacco pile from toppling over.
[0038] In the present application, the upper end of the tobacco lifting vacuum moisture conditioning turnover box steam flow device is 5-10 mm higher than the bottom surface hole plate of the turnover box, preferably 10 mm higher, to facilitate the support of the tobacco pile.
[0039] The above is only a preferred embodiment of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A device for improving the steam flowability of a tobacco vacuum rehumidification turnover box, characterized in that, It includes a breathable pad body, with bending portions on both sides of the breathable pad body, and mounting holes on the bending portions; Support plates are evenly arranged at both ends and inside the breathable pad body, and through holes are provided on the support plates at both ends of the breathable pad body. Ventilation holes are evenly distributed on the breathable pad body; a lining mesh is wrapped around the outside of the breathable pad body.
2. The device for improving the steam flowability of a tobacco vacuum rehumidification turnover box according to claim 1, characterized in that, The breathable pad body is in the shape of an inverted V or trapezoid.
3. The device for improving the steam flowability of a tobacco vacuum rehumidification turnover box according to claim 1, characterized in that, The height of the breathable pad body is 50-70mm, and the width between the two bends is less than or equal to the width of the bottom beam of the turnover box.
4. The device for improving the steam flowability of a tobacco vacuum rehumidification turnover box according to claim 1, characterized in that, The vent is a round hole with a diameter of 2mm.
5. A turnover box, characterized in that, The device for improving the steam flow of a tobacco vacuum rehumidification turnover box, comprising a turnover box body and a device disposed within the turnover box body according to any one of claims 1 to 3.
6. The turnover box according to claim 5, characterized in that, The turnover box body includes a bottom outer beam and a side wall outer beam, and a device for improving the steam flow of the tobacco vacuum rehumidification turnover box is set directly above each bottom outer beam and on the inner side of each side wall outer beam.
7. The turnover box according to claim 6, characterized in that, The upper end of the device for improving the steam flow of the tobacco vacuum rehumidification turnover box is 5-10mm higher than the bottom hole plate of the turnover box.
8. The turnover box according to claim 5, characterized in that, A liner is installed inside the perforated plate of the turnover box.