A jet-tube type heating and humidifying machine
By installing an anti-sticking mesh on the inner wall of the cavity of the jet tube heating and humidifying machine and equipping it with an automatic spraying and cleaning device, the problem of material adhesion is solved, automatic cleaning is achieved, the cleanliness of the equipment and production efficiency are improved, and the maintenance difficulty and cost are reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA TOBACCO HUNAN IND CORP
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-03
AI Technical Summary
During the expansion process of materials in jet-type heating and humidifying machines, the materials tend to adhere to the inner wall of the discharge hopper, forming wet clumps, which leads to difficult equipment maintenance, low production efficiency, and increased costs.
An anti-sticking mesh is installed on the inner wall of the cavity, and an automatic blowing and cleaning device is provided to prevent material adhesion by using compressed air and cleaning water, thereby achieving automatic cleaning.
It effectively reduces material adhesion, lowers labor intensity, improves equipment cleanliness and production efficiency, and reduces maintenance costs.
Smart Images
Figure CN224440379U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a jet tube type heating and humidifying machine, belonging to the technical field of tobacco production equipment. Background Technology
[0002] In the tobacco processing industry, especially on the tobacco processing production line, the jet tube heating and humidifying machine is an expansion device for tobacco stems or tobacco. It is used to heat and humidify the tobacco stems or tobacco online to achieve their expansion, providing materials with higher moisture and temperature for subsequent drying processes. This ensures the drying and shaping of the tobacco, improves the curl and elasticity of the tobacco, and thus improves the quality and filling value of the tobacco, making it more suitable for the requirements of subsequent cigarette manufacturing processes.
[0003] However, in actual production, jet-type heating and humidifying machines face a common problem: Because the material acquires high moisture and temperature within the expansion chamber, it is propelled into the chamber by the steam jet. The exhaust pipe inside the discharge hopper is responsible for removing excess moisture. Under the influence of the airflow, some material is easily blown towards and adheres to the inner wall of the chamber, forming material accumulation. If the air supply from the air inlet is ineffective, negative pressure can easily form inside the chamber, increasing the amount of material adhering. Once a certain amount of material accumulates and adheres, it naturally falls to the discharge chute at the bottom of the discharge hopper, forming wet clumps, which pose quality risks such as water stains and yellow spots on the smoke. Simultaneously, material accumulation leads to additional material consumption, increasing production costs, and also makes equipment maintenance more difficult, requiring operators to spend more time cleaning the equipment, thus reducing production efficiency.
[0004] Therefore, how to provide a device for reducing material clumps in a jet-type heating and humidifying machine in the tobacco industry, and timely remove material adhering to the inner wall of the discharge hopper to reduce the generation of wet clumps, is a technical problem that needs to be solved by those skilled in the art. Utility Model Content
[0005] The purpose of this invention is to overcome the problem that materials adhere to the inner wall of the discharge hopper when heating and humidifying materials using traditional jet pipe heating and humidifying machines.
[0006] To solve the above-mentioned technical problems, this utility model is implemented using the following technical solution:
[0007] A jet-tube type heating and humidifying machine is provided, including a cavity; a discharge hopper is installed in the cavity, and the side wall of the discharge hopper is connected to the feed pipe; the discharge port of the discharge hopper is located at the lower end, and the discharge vibration groove is installed directly below the discharge port and is connected to the drying tower through a transfer device;
[0008] The anti-stick mesh is installed on the inner wall of the cavity, and a skeleton is provided inside the anti-stick mesh. The anti-stick mesh is welded to the inner wall of the cavity through the skeleton.
[0009] An automatic blowing and cleaning device is also installed at the upper vertical end of the cavity. The automatic blowing and cleaning device includes a nozzle connected to a stainless steel pipeline for blowing compressed air or spraying cleaning water into the cavity.
[0010] Furthermore, the side wall of the cavity is provided with a discharge hood, the feed pipe is a venturi tube, and the feed pipe passes through the discharge hood and communicates with the inside of the discharge hopper.
[0011] Furthermore, the upper end of the inner wall of the discharge hopper has a tapered structure.
[0012] Furthermore, the skeleton of the anti-stick mesh is made of double-sided 304 stainless steel strips with a thickness of 2mm;
[0013] The frame is welded by fully welding both sides of the pressure strip, and a weld point is provided every 100mm in the middle.
[0014] Furthermore, the nozzle is a dual-medium rotating nozzle;
[0015] The automatic spraying and cleaning device also includes a compressed air regulating solenoid valve and a cleaning water regulating solenoid valve, both of which are connected to the nozzle.
[0016] Furthermore, a moisture-venting pipe is also installed at the upper end of the cavity.
[0017] Furthermore, the lower part of the cavity is provided with an air inlet, and an inner mesh is provided at the air inlet. The inner mesh is made of a non-stick material with a mesh count of 40.
[0018] Furthermore, the air supply vent is connected to the inner mesh via a stainless steel hinge.
[0019] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:
[0020] This invention effectively solves the technical problem that when processing stem materials, the material easily adheres to the inner wall of the discharge hopper cavity and forms wet clumps by setting an anti-sticking mesh on the inner wall of the cavity and setting an automatic spraying and cleaning device at the upper end of the cavity. At the same time, it achieves the technical effect of automatically cleaning the material in the discharge hopper cavity, reducing the labor intensity of personnel and improving the quality assurance capability. Attached Figure Description
[0021] Figure 1 The image shown is an overall schematic diagram of the jet pipe type heating and humidifying machine provided by this utility model.
[0022] Figure label:
[0023] 1. Anti-sticking mesh; 2. Air inlet; 3. Inner mesh; 4. Automatic spraying and cleaning device; 5. Discharge hood; 6. Feed pipe; 7. Dehumidification pipe; 8. Discharge vibrating trough; 9. Drying tower; 10. Discharge hopper. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.
[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.
[0026] like Figure 1 As shown, this embodiment provides a jet-tube type heating and humidifying machine, including:
[0027] Anti-sticking mesh 1, the anti-sticking mesh 1 of the discharge hopper 10 is located on the inner wall of the cavity and is fixed by welding with stainless steel pressure strips;
[0028] Air inlet 2 and inner mesh 3 are located on the lower side of the cavity and are fixed by a pull-in method. They are made of non-stick material.
[0029] Automatic blowing and cleaning device 4, the output end of which is located at the upper part of the cavity, adopts a dual-media nozzle, which can blow compressed air to reduce material adhesion and spray tap water to clean the material. The pipeline material is 304 stainless steel. The input end is equipped with a steam regulating solenoid valve and a cleaning water regulating solenoid valve to control the output end to spray steam or cleaning water.
[0030] The control unit establishes a signal connection with the compressed air regulating solenoid valve and the cleaning water regulating solenoid valve, and includes a manual operation module and an automatic operation module. The automatic operation module can automatically control the opening and closing of the compressed air regulating solenoid valve and the cleaning water regulating solenoid valve according to preset parameters.
[0031] The anti-stick mesh 1 of the discharge hopper 10 is fixed to the inner wall of the cavity by welding with stainless steel pressure strips, which can effectively reduce the material accumulation area of the cavity.
[0032] The air inlet 2 and inner mesh 3 are located on the lower side of the cavity and are fixed by a pull-in method for easy and timely cleaning. The use of non-stick material reduces material accumulation and achieves the desired air supply effect.
[0033] The automatic blowing and cleaning device 4 is located on the upper side of the cavity, and the blowing and cleaning area can effectively cover the inside of the cavity.
[0034] The output end of the automatic blowing and cleaning device 4 adopts a dual-medium nozzle, which is connected to a 304 stainless steel pipeline through a threaded connection, and the nozzle direction can be adjusted.
[0035] The input end of the automatic spraying and cleaning device 4 includes a compressed air regulating solenoid valve and a cleaning water regulating solenoid valve, which controls the output end to spray compressed air or cleaning water.
[0036] The control unit is a PLC, which establishes a signal connection with the steam regulating solenoid valve and the cleaning water regulating solenoid valve at the input end of the automatic blowing and cleaning device 4.
[0037] Specifically, the jet-tube type heating and humidifying machine provided in this embodiment, during normal operation, the automatic operation module of the control unit will start the jet-blowing cycle according to the preset jet-blowing program. The jet-blowing process starts every 10 minutes, with each jet-blowing lasting 5 seconds. At this time, the control unit will send an opening signal to the compressed air regulating solenoid valve at the input end of the automatic jet-blowing and cleaning device 4, causing the airflow in the pipeline to be released and compressed air to be evenly sprayed out through the dual-media nozzle at the output end. The jet-blowing airflow effectively covers the inside of the cavity from top to bottom, effectively preventing and promptly cleaning material adhesion and accumulation. After the jet-blowing is completed, the control unit will send a closing signal to the compressed air regulating solenoid valve to stop the airflow supply.
[0038] When production is completed or special cleaning is required, the operator can switch to manual operation mode via the control panel on the control unit. In manual mode, the operator can directly control the opening and closing of the compressed air regulating solenoid valve, and adjust the frequency and duration of the blowing as needed. Through manual blowing, the operator can more thoroughly clean the adhering and accumulated materials inside the cavity, ensuring the cleanliness of the equipment and the smooth operation of the next production run.
[0039] When cleaning after production, the operator can switch the cleaning mode via the control panel on the control unit. At this time, the control unit will send an opening signal to the cleaning water regulating solenoid valve at the input end of the automatic spray and cleaning device 4, causing the cleaning water in the pipeline to be released and evenly sprayed out through the dual-media nozzle at the output end. The cleaning water effectively covers the inside of the cavity from top to bottom, effectively cleaning the material adhesion and accumulation. After cleaning, the control unit will send a closing signal to the cleaning water regulating solenoid valve to stop the cleaning water supply.
[0040] It is important to note that the output end of the automatic blowing and cleaning device 4 uses a three-dimensional rotating nozzle to ensure that both blowing and cleaning can effectively cover the inside of the cavity, improving the cleaning and blowing effect. At the same time, the compressed air regulating valve and the cleaning water regulating valve are set on the input pipeline. Their function is to regulate the opening, closing and flow rate of the compressed air and cleaning water entering the pipeline. The regulating valve establishes a signal connection with the control unit. The control unit sends the control command to the regulating valve according to the flow rate required by the user, so as to adjust the blowing and cleaning intensity to meet the needs of different working effects.
[0041] The control unit is a PLC. The PLC's operation panel includes a manual operation module and an automatic operation module, which users can switch between. The PLC is also equipped with a remote display terminal and a remote control terminal integrated into the same terminal device. The remote control terminal allows operators to remotely operate the PLC via touch screen or buttons to control the on / off status of the compressed air regulating solenoid valve and the cleaning water regulating solenoid valve, as well as adjust relevant parameters (such as blowing time and flow rate). The remote display terminal can display relevant data and information processed by the PLC in real time, providing operators with an intuitive monitoring interface.
[0042] Specifically, the anti-sticking mesh 1 of the discharge hood 5 is located on the inner wall of the discharge hood 5 cavity. The fixing frame is made of double-sided 304 stainless steel, 2mm thick, and fixed by pressure strip welding. The pressure strips are fully welded on both sides and have a weld point every 100mm in the middle. The welded parts are polished smooth to ensure that the anti-sticking mesh 1 is completely attached to the inner wall of the discharge hood 5. Before welding, the stainless steel frame is cold-worked to make it weakly magnetic. A magnetic attraction device is added to the outside of the discharge hood 5 to effectively attract and fix the frame, which not only facilitates the disassembly and assembly of the inner mesh 3, but also effectively reduces the area on the inner wall of the discharge hood 5 where material may accumulate.
[0043] The air inlet 2 and the inner mesh 3 are located on the lower side of the discharge hood 5 cavity. The inner mesh 3 is made of 40 mesh non-stick material. The frame is made of stainless steel double-sided pressure strips spot welded together. The frame and the air inlet 2 are fixed with stainless steel hinges at the top and with a pull-out method at the bottom, which is convenient for opening and closing, easy to replace and to observe the material status inside the discharge hood 5 at any time.
[0044] The output end of the automatic blowing and cleaning device 4 is located at the upper part of the cavity. It adopts a dual-media nozzle, which can blow compressed air to reduce material adhesion and spray tap water to clean the material. The pipeline material is 304 stainless steel. The input end is equipped with a compressed air regulating solenoid valve and a cleaning water regulating solenoid valve to control the output end to spray steam or cleaning water.
[0045] The specific usage process is as follows:
[0046] The filaments enter the expansion chamber pipe, i.e., the feed pipe 6, below the rotating air lock through the feed hood of the heating and humidifying equipment. The expansion chamber pipe connects the discharge hopper 10 and the discharge hood 5. The mixture of filaments and steam enters the discharge hopper 10 tangentially from the rear expansion chamber through the pipe. Under the action of inertia and gravity, the filaments rotate and fall along the inner wall of the chamber to the discharge vibrating trough 8 below the discharge hood 5. During this process, the filaments and steam separate in the discharge hopper 10. The filaments are sent to the drying tower 9 through the discharge vibrating trough 8, and the steam is discharged through the dehumidification pipe 7 at the top of the discharge hood 5. The top of the discharge hopper 10 adopts a tapered cone shape to prevent material accumulation and reduce material spillage.
[0047] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A jet tube type heating and humidifying machine comprising a cavity; characterized in that, The cavity is equipped with a discharge hopper (10), the side wall of the discharge hopper (10) is connected to the feed pipe (6); the discharge port of the discharge hopper (10) is located at the lower end, the discharge vibration groove (8) is installed directly below the discharge port, and is connected to the drying tower (9) through a transfer device; An anti-stick mesh (1) is installed on the inner wall of the cavity. The anti-stick mesh (1) is provided with a skeleton. The anti-stick mesh (1) is welded to the inner wall of the cavity through the skeleton. An automatic blowing and cleaning device (4) is also installed at the upper vertical end of the cavity. The automatic blowing and cleaning device (4) includes a nozzle connected to a stainless steel pipeline for blowing compressed air or spraying cleaning water into the cavity.
2. The jet tube type warming and humidifying apparatus according to claim 1, wherein The side wall of the cavity is provided with a discharge hood (5), the feed pipe (6) is a venturi tube, and the feed pipe (6) passes through the discharge hood (5) and communicates with the inside of the discharge hopper (10).
3. The jet tube type warming and humidifying apparatus according to claim 1, wherein The upper end of the inner wall of the discharge hopper (10) is a tapered structure.
4. The jet tube type warming and humidifying apparatus according to claim 1, wherein The skeleton of the anti-sticking mesh (1) is made of double-sided 304 stainless steel strips with a thickness of 2mm; The frame is welded by fully welding both sides of the pressure strip, and a weld point is provided every 100mm in the middle.
5. The jet tube type warming and humidifying apparatus according to claim 1, wherein The nozzle is a dual-media rotary nozzle; The automatic spraying and cleaning device (4) also includes a compressed air regulating solenoid valve and a cleaning water regulating solenoid valve, both of which are connected to the nozzle.
6. The jet tube type warming and humidifying apparatus according to claim 1, wherein The upper end of the cavity is also equipped with a moisture exhaust pipe (7).
7. The jet tube type warming and humidifying apparatus according to claim 1, wherein The lower part of the cavity is provided with an air inlet (2), and an inner mesh (3) is provided at the air inlet (2). The inner mesh (3) is made of non-stick material with a mesh count of 40.
8. The jet tube type warming and humidifying apparatus according to claim 7, wherein The air supply vent (2) is connected to the inner mesh (3) via a stainless steel hinge.