Tobacco shred drying steam system

Abstract

The utility model discloses a tobacco shred drying steam system which comprises a steam inlet pipe, a shred dryer communicated with the steam inlet pipe and a control unit, the steam inlet pipe is connected with a steam lifting device towards the direction of the shred dryer, and a first dryness detection device and a second dryness detection device are installed on the two sides of the steam lifting device respectively. A water outlet of the steam lifting device and a condensate pipe located behind the cut-tobacco drier are converged to a condensate header pipe through a pipeline, and the steam lifting device, the first dryness detection device and the second dryness detection device are all electrically connected with the control unit. The tobacco shred drying steam system provided by the utility model can effectively improve the uniformity and quality of tobacco shred drying.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco drying equipment, in particular to a tobacco shred drying steam system. Background Art

[0002] The tobacco cut-drying steam system is a crucial step in the cigarette production process. The quality of the cut tobacco directly impacts the physical and sensory qualities of the cigarettes. Fluctuations in steam quality are also a key factor affecting the quality of the cut tobacco. Existing steam systems in tobacco cut dryers experience heat loss during steam transmission, reducing heat exchange efficiency and leading to inaccurate steam dryness control. Existing steam systems often utilize rigid connecting pipes, requiring destructive disassembly for maintenance, increasing the difficulty and cost of repairs. All of these factors impact the uniformity and quality of the cut tobacco. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a tobacco cut-drying steam system, which can effectively improve the uniformity and quality of the dried cut-drying.

[0004] The technical solutions provided by this utility model are as follows:

[0005] A tobacco cut-drying steam system comprises a steam inlet pipe, a cut-drying machine connected to the steam inlet pipe, and a control unit. The steam inlet pipe is connected to a steam lifting device toward the cut-drying machine. A first dryness detection device and a second dryness detection device are respectively installed on both sides of the steam lifting device. The water outlet of the steam lifting device and a condensate pipe located behind the cut-drying machine are converged to a condensate main pipe through a pipeline. The steam lifting device, the first dryness detection device, and the second dryness detection device are all electrically connected to the control unit.

[0006] Preferably, an insulation layer and a temperature sensor are respectively installed on the outer wall of the steam inlet pipe, and the temperature sensor is electrically connected to the control unit.

[0007] Preferably, the control unit includes a real-time data comparison module and a sensor calibration module.

[0008] Preferably, the steam lifting device comprises two steam lifting units connected in series.

[0009] Preferably, the connecting pipes between the steam inlet pipe and the first dryness detection device, the first dryness detection device and the steam lifting device, the steam lifting device and the second dryness detection device, and the second dryness detection device and the tow dryer are all connected by elastic joints.

[0010] Preferably, a mass flow sensor is provided at the air inlet end of the tofu drying machine.

[0011] The utility model has the following advantages over the prior art:

[0012] The tobacco cut-drying steam system of the present invention is connected to a steam lifting device in the direction of the steam inlet pipe toward the cut-drying machine, and a first dryness detection device and a second dryness detection device are respectively installed on both sides of the steam lifting device. The use of accurate dryness detection devices can ensure accurate control and real-time monitoring of steam dryness. Through real-time monitoring and automatic adjustment by the control unit, the steam supply is optimized, the quality of the cut-drying is guaranteed, and the uniformity and quality of the cut-drying can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is a schematic structural diagram of the tobacco cutting steam system in an embodiment of the present utility model.

[0015] Reference numerals:

[0016] 1. Steam inlet pipe; 2. Tofu drying machine; 3. Steam lifting device; 4. First dryness detection device; 5. Second dryness detection device; 6. Condensate main pipe. DETAILED DESCRIPTION

[0017] In order to help those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention are clearly and completely described below. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0018] like Figure 1 As shown, an embodiment of the present invention provides a tobacco cut-drying steam system, comprising a steam inlet pipe 1, a cut-drying machine 2 connected to the steam inlet pipe 1, and a control unit. The steam inlet pipe 1 is connected to a steam lifting device 3 toward the cut-drying machine 2. The steam lifting device 3 can be a lifting device disclosed in the prior art (such as the lifting device disclosed in patent document CN 217511485 U), which improves the steam quality of the entire system. A first dryness detection device 4 and a second dryness detection device 5 are respectively installed on both sides of the steam lifting device 3. The water outlet of the steam lifting device 3 and the condensate pipe located behind the cut-drying machine 2 are converged to a condensate main pipe 6 through a pipeline. The steam lifting device 3, the first dryness detection device 4, and the second dryness detection device 5 are all electrically connected to the control unit.

[0019] In this embodiment, an insulation layer and a temperature sensor are installed on the outer wall of the steam inlet pipe 1. The temperature sensor is electrically connected to a control unit to monitor and adjust the steam temperature in real time. This allows accurate measurement of steam temperature at different locations, improving system stability. A platinum resistance temperature sensor is used as the temperature sensor. The insulation layer reduces heat loss and improves heat exchange efficiency. The insulation layer can be made of an aluminum silicate fiber blanket, manually or mechanically wrapped around the pipe wall and then secured with high-temperature-resistant glue or metal tape to form a thermal insulation layer. A location for the temperature sensor is reserved on the insulation layer.

[0020] In this embodiment, the control unit includes a real-time data comparison module and a sensor calibration module. The real-time data comparison module can be a module disclosed in the prior art that can perform data comparison functions, and the sensor calibration module can be a module disclosed in the prior art that can perform data calibration functions. Data comparison and sensor calibration can be performed through corresponding data input. The control unit is provided to assist in achieving the objectives of the present invention and is not a software improvement. The control unit stores a historical steam supply curve to facilitate comparison with real-time data and provide a better steam supply curve.

[0021] In this embodiment, the steam lifting device 3 includes two steam lifting units connected in series, which increases the steam quality control.

[0022] In this embodiment, the first dryness detection device 4 and the second dryness detection device 5 can be dryness detection devices disclosed in the prior art, and are used to detect the dryness value of steam.

[0023] In this embodiment, the connecting pipes between the steam inlet pipe 1 and the first dryness detection device 4, the first dryness detection device 4 and the steam lifting device 3, the steam lifting device 3 and the second dryness detection device 5, and the second dryness detection device 5 and the tofu drying machine 2 are all connected using elastic joints, thereby reducing the problems caused by rigid pipe connections and facilitating maintenance. The elastic joints can be elastic rubber hoses with metal joints at both ends, fixed by threads or clamps to achieve flexible and sealed connections between pipes; the inner layer of the hose can be made of high-temperature resistant rubber or plastic material, and the outer layer can be braided with stainless steel wire to form a durable and elastic pipe connector, and the two ends can also be fixed with suitable joints; or joints made of polymer elastomer materials, such as polyurethane or fluoroplastics, can be used, which have good corrosion resistance and sealing properties and are connected to the pipe by ferrules, threads, or bonding.

[0024] In this embodiment, a mass flow sensor is provided at the air inlet end of the tofu drying machine 2 .

[0025] The tobacco-cut steam drying system of this embodiment is equipped with a first dryness detection device 4 and a second dryness detection device 5 on either side of the steam lifting device to ensure accurate measurement of steam dryness. The control unit has a built-in real-time data comparison module and a sensor calibration module to precisely control the steam lifting device 3 and monitor system status. All key pipelines and devices are connected using elastic joints to accommodate thermal expansion and simplify maintenance. The tobacco-cut steam drying system of this embodiment improves the accuracy of steam dryness detection, optimizes heat exchange efficiency, and is easy to maintain, which is of great significance for improving tobacco quality and production efficiency.

[0026] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tobacco cut-drying steam system, comprising a steam inlet pipe (1), a cut-drying machine (2) connected to the steam inlet pipe (1), and a control unit, characterized in that: The steam inlet pipe (1) is connected to a steam lifting device (3) in the direction of the wire drying machine (2), and a first dryness detection device (4) and a second dryness detection device (5) are respectively installed on both sides of the steam lifting device (3). The water outlet of the steam lifting device (3) and the condensation water pipe located behind the wire drying machine (2) are converged to the condensation water main pipe (6) through a pipeline. The steam lifting device (3), the first dryness detection device (4) and the second dryness detection device (5) are all electrically connected to the control unit.

2. The tobacco cut drying steam system according to claim 1, characterized in that: An insulation layer and a temperature sensor are respectively installed on the outer wall of the steam inlet pipe (1), and the temperature sensor is electrically connected to the control unit.

3. The tobacco cut drying steam system according to claim 1, characterized in that: The control unit includes a real-time data comparison module and a sensor calibration module.

4. The tobacco cut-drying steam system according to claim 1, 2 or 3, characterized in that: The steam lifting device (3) comprises two steam lifting units connected in series.

5. The tobacco cut-drying steam system according to claim 1, 2 or 3, characterized in that: The connecting pipes between the steam inlet pipe (1) and the first dryness detection device (4), the first dryness detection device (4) and the steam lifting device (3), the steam lifting device (3) and the second dryness detection device (5), and the second dryness detection device (5) and the tofu drying machine (2) are all connected by elastic joints.

6. The tobacco cut-drying steam system according to claim 1, 2 or 3, characterized in that: A mass flow sensor is provided at the air inlet end of the tofu drying machine (2).

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