A steam control device for a hot air leaf moistening machine and a hot air leaf moistening machine

Abstract

The utility model discloses a kind of hot air leaf moistening machine steam control device and hot air leaf moistening machine, it is related to tobacco equipment technical field.The utility model proposes a kind of hot air leaf moistening machine steam control device, central controller can receive the inlet tobacco flow detected by first electronic belt scale, and receive the water content numerical value of first moisture meter and second moisture meter, according to standard tobacco water content, judge out theoretical steam flow value and theoretical water mist value, central controller controls steam valve, water supply valve and water mist valve opening, so that the detected numerical value of steam flowmeter and water mist flowmeter reaches theoretical steam flow value and theoretical water mist value, to accurately control steam flow, prevent outlet tobacco water content too high, improve the stability of tobacco moisture control, improve tobacco processing quality and product suction sensory quality.The utility model proposes a kind of hot air leaf moistening machine, by setting hot air leaf moistening machine steam control device, improve tobacco processing quality and product suction sensory quality.

Description

Technical Field

[0001] This utility model relates to the field of tobacco equipment, and in particular to a steam control device for a hot air leaf humidifier and a hot air leaf humidifier. Background Technology

[0002] Hot air leaf conditioning is a crucial processing step in the tobacco leaf re-drying process. This step primarily improves the moisture content of the tobacco leaves, enhances their mechanical processing resistance, and improves their sensory quality, preparing them for subsequent processing steps. The hot air leaf conditioning process is generally completed using a hot air leaf conditioning machine.

[0003] In existing technologies, the tobacco leaf re-drying process usually adopts a return air control mode. Due to the influence of ambient temperature, the return air temperature drops rapidly when the air temperature is cold. It is necessary to control the heating steam valve to increase the steam flow to maintain a stable return air temperature. However, the increase in steam flow will lead to an increase in the moisture content of the tobacco leaves, which can easily result in the problem of excessively high moisture content of the exported tobacco leaves.

[0004] Therefore, there is an urgent need to propose a solution to more precisely control the steam flow rate and prevent the moisture content of the exported tobacco leaves from being too high. Utility Model Content

[0005] The first objective of this invention is to provide a steam control device for a hot air leaf humidifier to solve the problem of excessively high moisture content in tobacco leaves at the outlet of the hot air leaf humidifier.

[0006] The second objective of this utility model is to provide a hot air leaf humidifier to solve the problem that the moisture content of tobacco leaves at the outlet of the hot air leaf humidifier is easily too high.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A steam control device for a hot air leaf humidifier includes a first electronic belt scale and a leaf humidifier drum. The discharge end of the first electronic belt scale is connected to the inlet end of the leaf humidifier drum. The first electronic belt scale is used to detect the inlet tobacco leaf flow rate and is equipped with a first moisture meter above it for detecting the moisture content of the inlet tobacco leaves. A second moisture meter is installed at the discharge end of the leaf humidifier drum for detecting the moisture content of the outlet tobacco leaves. The leaf humidifier drum is equipped with an atomizing steam nozzle and a direct injection steam nozzle. The direct injection steam nozzle is located on the side of the atomizing steam nozzle away from the first electronic belt scale. The steam control device for the hot air leaf humidifier also includes a steam pipeline, a water supply pipeline, and branch pipes. The steam pipeline is connected to a steam source at one end and to a direct-injection steam nozzle at the other end. The water supply pipeline is connected to a water source at one end and to an atomizing steam nozzle at the other end. A branch pipeline connects the steam pipeline and the water supply pipeline. A steam valve and a steam flow meter are installed on the steam pipeline. A water supply valve and a water mist flow meter are installed on the water supply pipeline. A water mist valve is installed on the branch pipeline. The steam control device of the hot air leaf humidifier also includes a central controller. The first electronic belt scale, the first moisture meter, the second moisture meter, the steam valve, the steam flow meter, the water supply valve, the water mist flow meter, and the water mist valve are all connected to the central controller.

[0009] In some embodiments, the steam control device of the hot air leaf humidifier further includes a second electronic belt scale, the inlet end of which is connected to the outlet end of the leaf humidifier drum, and the second electronic belt scale is used to detect the outlet tobacco leaf flow rate.

[0010] In some embodiments, the branch pipes are Z-shaped.

[0011] In some embodiments, the steam valve is located downstream of the connection between the steam pipeline and the branch pipeline;

[0012] And / or, the water supply valve is located upstream of the connection between the water supply pipeline and the branch pipeline.

[0013] In some embodiments, the steam flow meter is located downstream of the connection between the steam line and the branch line.

[0014] In some embodiments, the steam control device for the hot air leaf humidifier further includes a touch screen, which is electrically connected to the central controller.

[0015] In some embodiments, the leaf-moistening roller is tilted downward at a predetermined angle along the tobacco leaf transport direction.

[0016] In some embodiments, the water mist flow meter is located downstream of the connection between the water supply pipeline and the branch pipeline.

[0017] In some embodiments, the central controller is a PLC controller.

[0018] A hot air leaf humidifier includes a steam control device for the hot air leaf humidifier.

[0019] The beneficial effects of this utility model are:

[0020] This utility model discloses a steam control device for a hot air leaf humidifier, comprising a first electronic belt scale and a leaf humidifier drum. The discharge end of the first electronic belt scale is connected to the inlet end of the leaf humidifier drum. The first electronic belt scale is used to detect the inlet tobacco leaf flow rate and is equipped with a first moisture meter above it for detecting the moisture content of the inlet tobacco leaves. A second moisture meter is installed at the discharge end of the leaf humidifier drum for detecting the moisture content of the outlet tobacco leaves. The leaf humidifier drum is equipped with an atomizing steam nozzle and a direct injection steam nozzle. The direct injection steam nozzle is located on the side of the atomizing steam nozzle away from the first electronic belt scale. The steam control device for the hot air leaf humidifier also includes a steam pipe. The system includes a steam pipeline, a water supply pipeline, and branch pipelines. One end of the steam pipeline is connected to the steam source, and the other end is connected to the direct injection steam nozzle. One end of the water supply pipeline is connected to the water source, and the other end is connected to the atomizing steam nozzle. The branch pipeline connects the steam pipeline and the water supply pipeline. The steam pipeline is equipped with a steam valve and a steam flow meter. The water supply pipeline is equipped with a water supply valve and a water mist flow meter. The branch pipeline is equipped with a water mist valve. The steam control device of the hot air leaf humidifier also includes a central controller. The first electronic belt scale, the first moisture meter, the second moisture meter, the steam valve, the steam flow meter, the water supply valve, the water mist flow meter, and the water mist valve are all connected to the central controller. With the above setup, the first electronic belt scale transports the tobacco leaves to the humidifying drum, and the direct-injection steam nozzles spray water vapor into the humidifying drum. Since the steam pipeline is connected to the water supply pipeline via branch pipelines, the atomizing steam nozzles can spray a mixture of water and water vapor into the humidifying drum. The steam flow meter and water supply flow meter can monitor the steam flow rate and water vapor moisture content. Furthermore, the first electronic belt scale can detect the flow rate of the inlet tobacco leaves, the first moisture meter can obtain the moisture content of the inlet tobacco leaves, the second moisture meter can obtain the moisture content of the outlet tobacco leaves, and the central controller can receive the first electrical signal. The sub-belt scale detects the inlet tobacco leaf flow rate and receives moisture content values ​​from the first and second moisture meters. Based on the standard tobacco leaf moisture content, it determines the theoretical steam flow rate and theoretical water mist value. Simultaneously, the central controller acquires the values ​​detected by the steam flow meter and water mist flow meter and controls the opening of the steam valve, water supply valve, and water mist valve to ensure that the values ​​detected by the steam flow meter and water mist flow meter reach the theoretical steam flow rate and theoretical water mist value. This precisely controls the steam flow rate, prevents excessive moisture content in the outlet tobacco leaves, improves the stability of tobacco leaf moisture control, and enhances the processing quality and sensory quality of the tobacco leaves.

[0021] This utility model proposes a hot air leaf humidifier. By setting up a steam control device for the hot air leaf humidifier, the central controller can receive the inlet tobacco leaf flow rate detected by the first electronic belt scale, and receive the moisture content values ​​from the first and second moisture meters. Based on the standard tobacco leaf moisture content, it determines the theoretical steam flow rate and theoretical water mist value. At the same time, the central controller acquires the values ​​detected by the steam flow meter and the water mist flow meter, and controls the opening of the steam valve, water supply valve, and water mist valve to ensure that the values ​​detected by the steam flow meter and the water mist flow meter reach the theoretical steam flow rate and theoretical water mist value. This accurately controls the steam flow rate, prevents the outlet tobacco leaf moisture content from being too high, improves the stability of tobacco leaf moisture control, and improves the tobacco leaf processing quality and sensory quality. Attached Figure Description

[0022] 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.

[0023] Figure 1 This is a schematic diagram of the structure of a steam control device for a hot air leaf humidifier provided in an embodiment of this utility model;

[0024] Figure 2 This is a circuit diagram of a steam control device for a hot air leaf humidifier provided in an embodiment of this utility model.

[0025] In the picture:

[0026] 1. First electronic belt scale; 2. Wetting drum; 3. First moisture meter; 4. Second moisture meter; 5. Atomizing steam nozzle; 6. Direct injection steam nozzle; 7. Steam pipeline; 8. Water supply pipeline; 9. Branch pipeline; 10. Steam flow meter; 20. Steam valve; 30. Water supply valve; 40. Water mist flow meter; 50. Water mist valve; 60. Second electronic belt scale; 70. Central controller; 80. Touch screen. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0031] This embodiment proposes a steam control device for a hot air leaf humidifier to solve the problem of excessively high moisture content of tobacco leaves at the outlet of the hot air leaf humidifier in the prior art.

[0032] like Figures 1-2As shown, a steam control device for a hot air leaf humidifier includes a first electronic belt scale 1 and a leaf humidifier drum 2. The discharge end of the first electronic belt scale 1 is connected to the inlet end of the leaf humidifier drum 2. The first electronic belt scale 1 is used to detect the inlet tobacco leaf flow rate, and a first moisture meter 3 is installed above it to detect the moisture content of the inlet tobacco leaves. A second moisture meter 4 is installed at the discharge end of the leaf humidifier drum 2 to detect the outlet tobacco leaf moisture content. An atomizing steam nozzle 5 and a direct injection steam nozzle 6 are installed in the leaf humidifier drum 2. The direct injection steam nozzle 6 is located on the side of the atomizing steam nozzle 5 away from the first electronic belt scale 1. The steam control device for the hot air leaf humidifier also includes a steam pipeline 7, a water supply pipeline 8, and a branch pipeline 9. One end of the steam pipe 7 is connected to the steam source, and the other end is connected to the direct injection steam nozzle 6. One end of the water supply pipe 8 is connected to the water source, and the other end is connected to the atomizing steam nozzle 5. The branch pipe 9 is connected between the steam pipe 7 and the water supply pipe 8. The steam pipe 7 is equipped with a steam valve 20 and a steam flow meter 10. The water supply pipe 8 is equipped with a water supply valve 30 and a water mist flow meter 40. The branch pipe 9 is equipped with a water mist valve 50. The steam control device of the hot air leaf humidifier also includes a central controller 70. The first electronic belt scale 1, the first moisture meter 3, the second moisture meter 4, the steam valve 20, the steam flow meter 10, the water supply valve 30, the water mist flow meter 40, and the water mist valve 50 are all connected to the central controller 70.

[0033] Understandably, the first electronic belt scale 1 transports tobacco leaves to the humidifying drum 2, and the direct-injection steam nozzle 6 sprays water vapor into the humidifying drum 2. Since the steam pipeline 7 is connected to the water supply pipeline 8 via the branch pipeline 9, the atomizing steam nozzle 5 can spray a mixture of water and water vapor into the humidifying drum 2. The steam flow meter 10 and the water supply flow meter can monitor the flow rate of the water vapor and the moisture content of the water vapor. In addition, the first electronic belt scale 1 can detect the flow rate of the inlet tobacco leaves, the first moisture meter 3 can obtain the moisture content of the inlet tobacco leaves, the second moisture meter 4 can obtain the moisture content of the outlet tobacco leaves, and the central controller 70 can receive the first electronic belt scale 1. The scale 1 detects the inlet tobacco leaf flow rate and receives the moisture content values ​​from the first moisture meter 3 and the second moisture meter 4. Based on the standard tobacco leaf moisture content, it determines the theoretical steam flow rate and theoretical water mist value. At the same time, the central controller 70 acquires the values ​​detected by the steam flow meter 10 and the water mist flow meter 40, and controls the opening of the steam valve 20, the water supply valve 30, and the water mist valve 50 to ensure that the values ​​detected by the steam flow meter 10 and the water mist flow meter 40 reach the theoretical steam flow rate and theoretical water mist value. This accurately controls the steam flow rate, prevents the outlet tobacco leaf moisture content from being too high, improves the stability of tobacco leaf moisture control, and enhances the tobacco leaf processing quality and sensory quality.

[0034] Furthermore, the direct-injection steam nozzle 6 is located on the side of the atomizing steam nozzle 5 away from the first electronic belt scale 1. This arrangement allows the tobacco leaves to first pass through the atomizing steam nozzle 5 and then through the direct-injection steam nozzle 6, that is, first come into contact with water mist with a higher moisture content, and then come into contact with water vapor with a lower moisture content. This allows the tobacco leaves to be moistened from the surface first, and then deeply penetrated by water vapor. This can improve the leaf moistening effect while saving water and enhance the user experience.

[0035] In some optional embodiments, the steam control device of the hot air leaf humidifier further includes a second electronic belt scale 60, the inlet end of which is connected to the outlet end of the leaf humidifier drum 2. The second electronic belt scale 60 is used to detect the outlet tobacco leaf flow rate. This setting enables monitoring of the outlet tobacco leaf flow rate, facilitating parameter setting when the tobacco leaves enter the next process, and improving the structural rationality of the steam control device of the hot air leaf humidifier.

[0036] It is worth noting that the first electronic belt scale 1, the second electronic belt scale 60, the first moisture meter 3, the second moisture meter 4, the steam flow meter 10, and the water mist flow meter 40 can all be mature products available on the market. This embodiment does not impose too many restrictions on their specific structures.

[0037] In some alternative embodiments, the branch pipe 9 is Z-shaped. This arrangement allows the branch pipe 9 to have a more regular shape, thereby avoiding interference with other components and improving the structural rationality of the steam control device for the hot air leaf humidifier.

[0038] In some alternative embodiments, the steam valve 20 is located downstream of the connection between the steam line 7 and the branch line 9. This arrangement prevents the steam valve 20 from simultaneously adjusting the flow rates of the branch line 9 and the direct injection steam nozzle 6, improving the controllability of the steam flow rate and thus enhancing the accuracy of controlling the moisture content of the tobacco leaves.

[0039] In some alternative embodiments, the water supply valve 30 is located upstream of the connection between the water supply line 8 and the branch line 9. This arrangement prevents the water supply valve 30 from interfering with the steam flow of the branch line 9, improves the controllability of the steam flow, and thus improves the accuracy of controlling the moisture content of the tobacco leaves.

[0040] In some alternative embodiments, the steam flow meter 10 is located downstream of the connection between the steam line 7 and the branch line 9. This arrangement allows the steam flow meter 10 to more accurately reflect the steam flow rate of the direct injection steam nozzle 6, thereby improving the control accuracy of the central controller 70 over the steam flow rate.

[0041] In some alternative embodiments, the water mist flow meter 40 is located downstream of the connection between the water supply line 8 and the branch line 9. This arrangement allows the water mist flow meter 40 to more accurately reflect the water mist flow rate of the water mist steam nozzle, thereby improving the control accuracy of the central controller 70 over the water mist flow rate.

[0042] In some optional embodiments, the steam control device for the hot air leaf humidifier also includes a touch screen 80, which is electrically connected to the central controller 70. This setting allows the standard moisture content of the exit tobacco leaves to be set via the touch screen 80, thereby improving the operability and functional versatility of the steam control device for the hot air leaf humidifier and increasing user satisfaction.

[0043] In some optional embodiments, the moistening roller 2 is tilted downward at a predetermined angle along the tobacco leaf transport direction. This arrangement facilitates a smoother flow of tobacco leaves to the discharge end of the moistening roller 2, thereby improving the smoothness of tobacco leaf transport.

[0044] In some optional embodiments, the central controller 70 is a PLC controller. PLC controllers offer advantages such as high reliability, ease of programming, flexibility, and strong compatibility, improving the reliability of the steam control device for hot air leaf conditioners.

[0045] This embodiment also proposes a hot air leaf humidifier to solve the problem of excessively high moisture content of tobacco leaves at the outlet of existing hot air leaf humidifiers. The hot air leaf humidifier includes a steam control device. By setting up the steam control device, the central controller 70 can receive the inlet tobacco leaf flow rate detected by the first electronic belt scale 1, and receive the moisture content values ​​from the first moisture meter 3 and the second moisture meter 4. Based on the standard tobacco leaf moisture content, it determines the theoretical steam flow rate and theoretical water mist value. At the same time, the central controller 70 acquires the values ​​detected by the steam flow meter 10 and the water mist flow meter 40, and controls the opening of the steam valve 20, the water supply valve 30, and the water mist valve 50, so that the values ​​detected by the steam flow meter 10 and the water mist flow meter 40 reach the theoretical steam flow rate and theoretical water mist value, thereby accurately controlling the steam flow rate, preventing excessively high moisture content of the outlet tobacco leaves, improving the stability of tobacco leaf moisture control, and improving the tobacco leaf processing quality and sensory quality.

[0046] 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 steam control device for a hot air leaf humidifier, characterized in that, The device includes a first electronic belt scale (1) and a leaf-humidifying drum (2). The discharge end of the first electronic belt scale (1) is connected to the inlet end of the leaf-humidifying drum (2). The first electronic belt scale (1) is used to detect the inlet tobacco leaf flow rate and is equipped with a first moisture meter (3) above it. The first moisture meter (3) is used to detect the moisture content of the inlet tobacco leaf. The discharge end of the leaf-humidifying drum (2) is equipped with a second moisture meter (4). The second moisture meter (4) is used to detect the moisture content of the outlet tobacco leaf. The leaf-humidifying drum (2) is equipped with an atomizing steam nozzle (5) and a direct injection steam nozzle (6). The direct injection steam nozzle (6) is located on the side of the atomizing steam nozzle (5) away from the first electronic belt scale (1). The steam control device of the hot air leaf-humidifying machine also includes a steam pipeline (7), a water supply pipeline (8), and a branch pipeline (9). One end of the steam pipeline (7) is used to connect to a steam source. The other end is connected to the direct injection steam nozzle (6). One end of the water supply pipeline (8) is connected to the water source, and the other end is connected to the atomizing steam nozzle (5). The branch pipeline (9) is connected between the steam pipeline (7) and the water supply pipeline (8). The steam pipeline (7) is equipped with a steam valve (20) and a steam flow meter (10). The water supply pipeline (8) is equipped with a water supply valve (30) and a water mist flow meter (40). The branch pipeline (9) is equipped with a water mist valve (50). The hot air leaf humidifier steam control device also includes a central controller (70). The first electronic belt scale (1), the first moisture meter (3), the second moisture meter (4), the steam valve (20), the steam flow meter (10), the water supply valve (30), the water mist flow meter (40), and the water mist valve (50) are all connected to the central controller (70).

2. The steam control device for the hot air leaf humidifier according to claim 1, characterized in that, The steam control device of the hot air leaf humidifier also includes a second electronic belt scale (60), the feed end of the second electronic belt scale (60) is connected to the discharge end of the leaf humidifier drum (2), and the second electronic belt scale (60) is used to detect the outlet tobacco leaf flow rate.

3. The steam control device for the hot air leaf humidifier according to claim 1, characterized in that, The branch pipe (9) is Z-shaped.

4. The steam control device for the hot air leaf humidifier according to claim 1, characterized in that, The steam valve (20) is located downstream of the connection between the steam pipeline (7) and the branch pipeline (9); And / or, the water supply valve (30) is located upstream of the connection between the water supply pipeline (8) and the branch pipeline (9).

5. The steam control device for the hot air leaf humidifier according to claim 1, characterized in that, The steam flow meter (10) is located downstream of the connection between the steam pipeline (7) and the branch pipeline (9).

6. The steam control device for the hot air leaf humidifier according to claim 1, characterized in that, The steam control device of the hot air leaf humidifier also includes a touch screen (80), which is electrically connected to the central controller (70).

7. The steam control device for the hot air leaf humidifier according to claim 1, characterized in that, Along the tobacco leaf transport direction, the leaf-moistening roller (2) is tilted downward at a preset angle.

8. The steam control device for the hot air leaf humidifier according to claim 1, characterized in that, The water mist flow meter (40) is located downstream of the connection between the water supply pipeline (8) and the branch pipeline (9).

9. The steam control device for a hot air leaf humidifier according to any one of claims 1-8, characterized in that, The central controller (70) is a PLC controller.

10. A hot air leaf humidifier, characterized in that, Includes the steam control device for the hot air leaf humidifier as described in any one of claims 1-9.

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