Spraying assembly and tobacco moisture regaining mechanism

Abstract

The utility model provides a spraying assembly and a tobacco moisture regaining mechanism, and relates to the technical field of tobacco processing. The spraying assembly is arranged in the moisture regaining roller and comprises a spraying pipe and an air inlet assembly, the spraying pipe is arranged in the moisture regaining roller and annularly extends in the circumferential direction of the moisture regaining roller, a plurality of spraying holes are formed in the spraying pipe at intervals, and the center lines of the spraying holes are parallel to the axis of the moisture regaining roller; the air inlet assembly comprises an air inlet pipe, the first end of the air inlet pipe communicates with the injection pipe, and the second end communicates with an air outlet of external steam equipment. The spraying assembly and the tobacco moisture regaining mechanism can reduce the processing strength of tobacco materials and prevent saturated steam in the moisture regaining roller from being excessively concentrated so as to guarantee the moisture regaining effect.

Description

Injection components and tobacco rehumidification mechanism Technical Field

[0001] This utility model relates to the field of tobacco processing technology, and in particular to a spraying component and a tobacco rehumidification mechanism. Background Technology

[0002] In tobacco production, rehydration of tobacco materials is a crucial step, primarily aimed at controlling their moisture content. A common rehydration method involves using a rehydration device. Steam is introduced into the rehydration drum, and a steam circulation system controls the temperature to rehydrate the tobacco material within the drum.

[0003] Existing rehumidification devices either inject all the saturated steam directly onto the tobacco material when introducing it into the rehumidification drum, causing the material to heat up rapidly upon entering the drum and resulting in excessive processing intensity, or they introduce the saturated steam directly into the drum through pipes. While this avoids rapid heating of the tobacco material upon entering the drum and reduces processing intensity, the concentrated saturated steam hinders the material's absorption of heat and moisture, thus compromising the rehumidification effect. Summary of the Invention

[0004] The purpose of this invention is to provide a spraying component and a tobacco rehumidification mechanism, which can reduce the processing intensity of tobacco materials and prevent excessive concentration of saturated steam in the rehumidification drum, thereby ensuring the rehumidification effect.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] The spraying assembly, disposed within the re-wetting drum, includes:

[0007] A spray pipe is disposed inside the rehydration drum and extends in a ring shape along the circumference of the rehydration drum. Multiple spray holes are provided on the spray pipe at intervals, and the center lines of the multiple spray holes are parallel to the axis of the rehydration drum.

[0008] An air intake assembly includes an air intake pipe, the first end of which is connected to the injection pipe and the second end of which is connected to the air outlet of an external steam device.

[0009] As a further technical solution, along the axial direction of the rehydration drum, the outer diameter of the spray pipe is the same as the inner diameter of the rehydration drum.

[0010] As a further technical solution, a plurality of the spray holes are evenly spaced along the circumference of the rehydration roller on the spray pipe.

[0011] As a further technical solution, the cross-sectional shape of the injection pipe along its extension direction is set to be circular or elliptical.

[0012] As a further technical solution, the intake assembly also includes a control valve, which is located in the middle of the intake pipe.

[0013] As a further technical solution, the air intake assembly also includes two flow meters for monitoring the saturated steam flow rate in the air intake pipe. Both flow meters are installed in the air intake pipe and are located on both sides of the control valve, respectively.

[0014] As a further technical solution, multiple air intake pipes are provided, and the first ends of the multiple air intake pipes are evenly spaced along the circumference of the rehydration roller on the spray pipe.

[0015] As a further technical solution, the spraying assembly also includes multiple anti-backflow components, which are disposed on the spraying pipe in a one-to-one correspondence with the multiple spraying holes, to prevent the tobacco in the rehydration roller from entering the spraying pipe.

[0016] As a further technical solution, the anti-return component is configured as an anti-return net;

[0017] Alternatively, the anti-backflow component may be configured as an anti-backflow rubber plate, wherein the anti-backflow rubber plate has an auxiliary opening in the middle that can divide the anti-backflow rubber plate into at least three equal parts along its circumference.

[0018] The tobacco rehumidification mechanism includes a rehumidification roller and an injection assembly. The injection pipe of the injection assembly is disposed inside the rehumidification roller, and the second end of the air inlet pipe of the injection assembly passes through the mounting through hole on the mounting side plate of the rehumidification roller and extends to the outside of the rehumidification roller.

[0019] Compared with the prior art, the spray assembly provided by this utility model has the following technical advantages:

[0020] Because the injection pipe is annular and located inside the rehydration drum, and has multiple injection holes spaced apart, with the centerlines of these holes parallel to the axis of the rehydration drum, and the injection pipe connected to the outlet of an external steam device via an inlet pipe, saturated steam is injected into the rehydration drum when the tobacco material is placed inside for rehydration. During this process, firstly, the saturated steam is injected into the rehydration drum through multiple injection holes, preventing excessive concentration of saturated steam and ensuring the tobacco material's absorption of heat and moisture, thus improving the rehydration effect. Secondly, because the centerlines of the multiple injection holes are parallel to the axis of the rehydration drum, the saturated steam diffuses along the axis after entering the drum, preventing direct spraying of steam onto the tobacco material. This avoids rapid heating of the tobacco material upon entry, thus reducing the processing intensity.

[0021] Compared with the prior art, the tobacco rehumidification mechanism provided by this utility model has the following technical advantages:

[0022] Because the rehumidification drum is equipped with a spray component, on the one hand, it can prevent the saturated steam entering the rehumidification drum from being too concentrated, thereby ensuring the absorption effect of heat and moisture by the tobacco material and improving the rehumidification effect; on the other hand, it can prevent the saturated steam from being directly sprayed onto the tobacco material in the rehumidification drum, thereby preventing the tobacco material from heating up rapidly as soon as it enters the rehumidification drum, thus reducing the processing intensity of the tobacco material. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0024] Figure 1 is a schematic diagram of the spray assembly provided in an embodiment of the present invention;

[0025] Figure 2 is a partial structural schematic diagram of the first embodiment of the anti-return component in the spray assembly provided by this utility model;

[0026] Figure 3 is a partial structural schematic diagram of a second embodiment of the anti-return component in the spray assembly provided by this utility model;

[0027] Figure 4 is a partial structural schematic diagram of the rehumidification mechanism provided in an embodiment of this utility model.

[0028] In the picture:

[0029] 10. Rehydration roller; 11. Install side plates;

[0030] 100. Injection pipe; 110. Injection hole;

[0031] 200. Intake assembly; 210. Intake pipe; 220. Control valve; 230. Flow meter;

[0032] 310. Anti-backflow net; 320. Anti-backflow rubber sheet; 321. Auxiliary opening. Detailed Implementation

[0033] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0034] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0035] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0036] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0037] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0038] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0039] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0040] Referring to Figures 1 to 4, the spraying assembly provided in this embodiment is disposed inside the rehydration drum 10 to reduce the processing intensity of the tobacco material and prevent excessive concentration of saturated steam inside the rehydration drum 10, thereby ensuring the rehydration effect. Specifically, the spraying assembly includes a spraying pipe 100 and an air intake assembly 200: the spraying pipe 100 is disposed inside the rehydration drum 10 and extends circumferentially around the rehydration drum 10 in a ring shape, and a plurality of spraying holes 110 are provided at intervals on the spraying pipe 100, the center lines of the plurality of spraying holes 110 being parallel to the axis of the rehydration drum 10; the air intake assembly 200 includes an air intake pipe 210, the first end of the air intake pipe 210 being connected to the spraying pipe 100, and the second end being connected to the air outlet of an external steam device.

[0041] Since the injection pipe 100 is annular and located inside the rehydration drum 10, and multiple injection holes 110 are spaced apart on the injection pipe 100, with the center lines of the multiple injection holes 110 all parallel to the axis of the rehydration drum 10, and the injection pipe 100 is connected to the outlet of an external steam device through the air inlet pipe 210, saturated steam is injected into the rehydration drum 10 when the tobacco material is placed inside the rehydration drum 10 for rehydration. During this process, on the one hand, saturated steam is injected into the rehumidification drum 10 through multiple injection holes 110, which can prevent the saturated steam entering the rehumidification drum 10 from being too concentrated, thereby ensuring the absorption effect of heat and moisture by the tobacco material and improving the rehumidification effect. On the other hand, since the center lines of the multiple injection holes 110 are all parallel to the axis of the rehumidification drum 10, after the saturated steam enters the rehumidification drum 10 through the multiple injection holes 110, it diffuses along the direction of the axis of the rehumidification drum 10, so as to avoid the saturated steam being directly sprayed onto the tobacco material inside the rehumidification drum 10, thereby avoiding the situation where the tobacco material heats up rapidly as soon as it enters the rehumidification drum 10, thus reducing the processing intensity of the tobacco material.

[0042] Preferably, along the axial direction of the rehydration drum 10, the outer diameter of the injection pipe 100 is the same as the inner diameter of the rehydration drum 10. That is, the injection pipe 100 is located after the rehydration drum 10, and the injection pipe 100 abuts against the inner wall of the rehydration drum 10. This arrangement ensures that after the saturated steam enters the rehydration drum 10 through multiple injection holes 110, the saturated steam diffuses along the inner wall of the rehydration drum 10, further preventing the saturated steam from being directly sprayed onto the tobacco material inside the rehydration drum 10, thereby reducing the processing intensity of the tobacco material; on the other hand, it reduces the probability of direct contact between the injection pipe 100 and the tobacco material inside the rehydration drum 10, thereby reducing the possibility of the injection holes 110 being blocked by the tobacco material.

[0043] Preferably, multiple injection holes 110 are evenly spaced along the circumference of the rehydration roller 10 in the injection pipe 100. This further improves the uniformity of saturated steam after it is injected into the rehydration roller 10, thereby ensuring that the amount of saturated steam that comes into contact with the tobacco material in all parts of the rehydration roller 10 is the same, thus improving the rehydration effect.

[0044] Preferably, the cross-sectional shape of the injection pipe 100 along its extension direction is set to circular or elliptical. This avoids dead zones in the flow within the injection pipe 100, thereby reducing the probability of eddies forming in the saturated steam within the injection pipe 100, thus reducing noise generated during the use of the injection assembly and improving the user experience.

[0045] Preferably, the air intake assembly 200 further includes a control valve 220, which is located in the middle of the air intake pipe 210. By providing the control valve 220, the opening degree of the control valve 220 can be adjusted according to the actual demand of saturated steam, thereby adjusting the amount and speed of saturated steam entering the rehydration drum 10.

[0046] Preferably, the air intake assembly 200 further includes two flow meters 230 for monitoring the saturated steam flow rate in the air intake pipe 210. Both flow meters 230 are installed in the air intake pipe 210 and are located on either side of the control valve 220. This arrangement allows the two flow meters 230 to monitor the amount of saturated steam entering the injection pipe 100. Therefore, during the rehumidification process, based on the amount and type of tobacco material in the rehumidification roller 10, the two flow meters 230 can be used to inject a corresponding flow rate of saturated steam into the rehumidification roller 10, ensuring the rehumidification effect. Furthermore, the two flow meters 230 work together. By comparing the amount of saturated steam detected by the two flow meters 230 passing through the air intake pipe 210, the operating status of the control valve 220 can be determined. When the detection results of the two flow meters 230 differ significantly, and this difference is also significant compared to the actual flow rate at the current opening of the control valve 220, the control valve 220 may be blocked, allowing the operator to repair or replace it promptly. In some other embodiments, only one flow meter 230 may be used.

[0047] Preferably, multiple air inlet pipes 210 are provided, with the first ends of the multiple air inlet pipes 210 evenly spaced along the circumference of the rehydration roller 10 and the injection pipe 100. This arrangement, on the one hand, increases the speed of saturated steam injected into the rehydration roller 10, so as to quickly meet the amount of saturated steam required for the rehydration of tobacco materials in the rehydration roller 10, thereby improving processing efficiency; on the other hand, by introducing saturated steam into the injection pipe 100 through multiple evenly spaced air inlet pipes 210, it can be ensured that the amount of saturated steam is the same at all points in the injection pipe 100, thereby ensuring that the amount of saturated steam ejected from each injection hole 110 is the same, and thus ensuring that the amount of saturated steam contacted by tobacco materials at all points in the rehydration roller 10 is the same, ensuring the absorption effect of heat and moisture by tobacco materials at all points, thereby improving the rehydration effect.

[0048] Preferably, the spraying assembly further includes multiple anti-backflow components, which are disposed in the spraying pipe 100 in a one-to-one correspondence with multiple spray holes 110, to prevent tobacco shreds in the rehydration roller 10 from entering the spraying pipe 100, thereby further ensuring the performance of the spraying pipe 100 and extending its service life.

[0049] Specifically, the anti-backflow component is set as an anti-backflow net 310, which can be set on the inner or outer wall of the injection pipe 100 according to actual needs. As shown in Figure 2, the mesh structure blocks the tobacco shreds in the rehydration roller 10, thereby preventing the tobacco shreds in the rehydration roller 10 from entering the injection pipe 100 or external steam equipment when not in operation.

[0050] Alternatively, the anti-backflow component can be configured as an anti-backflow rubber plate 320, with an auxiliary opening 321 in the middle that divides the anti-backflow rubber plate 320 into at least three equal parts along its circumference. When the injection pipe 100 injects saturated steam into the rehydration drum 10, the middle part of the anti-backflow rubber plate 320 is blown up along the auxiliary opening 321 in the direction of saturated steam flow due to the impact force of the saturated steam, so that the injection pipe 100 can inject saturated steam into the rehydration drum 10; when the injection pipe 100 stops injecting saturated steam into the rehydration drum 10, the middle part of the anti-backflow rubber plate 320 no longer bears the impact force of the saturated steam, and at this time, the middle part of the anti-backflow rubber plate 320 returns to its original state to prevent the tobacco in the rehydration drum 10 from entering the injection pipe 100 or external steam equipment.

[0051] The tobacco rehumidification mechanism includes a rehumidification roller 10 and an injection assembly. The injection pipe 100 in the injection assembly is disposed inside the rehumidification roller 10. The second end of the air inlet pipe 210 in the injection assembly passes through the mounting through hole on the mounting side plate 11 in the rehumidification roller 10 and extends out of the rehumidification roller 10.

[0052] Because the rehumidification roller 10 is equipped with a spray assembly, it can prevent the saturated steam entering the rehumidification roller 10 from becoming too concentrated, thus ensuring the absorption of heat and moisture by the tobacco material and improving the rehumidification effect. On the other hand, it can prevent saturated steam from being directly sprayed onto the tobacco material inside the rehumidification roller 10, thus preventing the tobacco material from rapidly heating up upon entering the rehumidification roller 10 and reducing the processing intensity of the tobacco material. Furthermore, since the second end of the air inlet pipe 210 extends out of the rehumidification roller 10 through the mounting through hole on the mounting side plate 11, the air inlet pipe 210 cooperates with the mounting side plate 11 to improve the installation strength and stability of the spray assembly inside the rehumidification roller 10, further ensuring the rehumidification effect.

[0053] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A spraying assembly, disposed within a rehydration drum (10), characterized in that, include: A jet pipe (100) is disposed inside the rehydration drum (10) and extends in a ring shape along the circumference of the rehydration drum (10). A plurality of jet holes (110) are provided on the jet pipe (100) at intervals, and the center lines of the plurality of jet holes (110) are parallel to the axis of the rehydration drum (10). An air intake assembly (200) includes an air intake pipe (210), the first end of which is connected to the jet pipe (100) and the second end of which is connected to the air outlet of an external steam device.

2. The spraying assembly according to claim 1, characterized in that, Along the axial direction of the rehydration drum (10), the outer diameter of the spray pipe (100) is the same as the inner diameter of the rehydration drum (10).

3. The spraying assembly according to claim 1, characterized in that, Multiple spray holes (110) are evenly spaced along the circumference of the rehydration roller (10) on the spray pipe (100).

4. The spraying assembly according to claim 1, characterized in that, The cross-sectional shape of the injection pipe (100) along its extension direction is set to be circular or elliptical.

5. The spraying assembly according to claim 1, characterized in that, The intake assembly (200) also includes a control valve (220) located in the middle of the intake pipe (210).

6. The spraying assembly according to claim 5, characterized in that, The intake assembly (200) also includes two flow meters (230) for monitoring the saturated steam flow rate in the intake pipe (210). Both flow meters (230) are disposed in the intake pipe (210) and are located on both sides of the control valve (220).

7. The spraying assembly according to claim 1, characterized in that, Multiple air intake pipes (210) are provided, and the first ends of the multiple air intake pipes (210) are evenly spaced along the circumference of the rehydration roller (10) on the spray pipe (100).

8. The spraying assembly according to any one of claims 1-7, characterized in that, The spraying assembly also includes multiple anti-backflow components, which are disposed in the spraying pipe (100) in a one-to-one correspondence with the multiple spraying holes (110) to prevent the tobacco in the rehydration roller (10) from entering the spraying pipe (100).

9. The spraying assembly according to claim 8, characterized in that, The anti-backflow component is configured as an anti-backflow net (310); or, the anti-backflow component is configured as an anti-backflow rubber plate (320), and the anti-backflow rubber plate (320) is provided with an auxiliary opening (321) in the middle of the anti-backflow rubber plate (320) that can divide the anti-backflow rubber plate (320) into at least three equal parts along its circumference.

10. A tobacco rehumidification mechanism, characterized in that, The device includes a rehydration roller (10) and a spray assembly as described in any one of claims 1-9, wherein a spray pipe (100) in the spray assembly is disposed inside the rehydration roller (10), and the second end of an air inlet pipe (210) in the spray assembly passes through a mounting through hole on a mounting side plate (11) in the rehydration roller (10) and extends out of the rehydration roller (10).

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