A temperature and humidity conditioning system for a vibratory conveying apparatus

Abstract

The application discloses a temperature and humidity adjusting system of a vibrating conveying device, and relates to the technical field of tobacco machines. The vibrating conveying device comprises a conveying channel and a temperature and humidity adjusting system. The temperature and humidity adjusting system comprises: a gas supply device with adjustable output power; a gas injection mechanism with multiple nozzles, wherein the nozzles are suspended above the conveying channel and their output directions are all towards the conveying surface of the conveying channel and away from the conveying direction; a temperature and humidity detector arranged downstream of the conveying channel; and a controller electrically connected with the gas supply device, the electric valve in the gas injection mechanism and the temperature and humidity detector. During use, the controller dynamically and cooperatively adjusts the output power of the gas supply device and the opening degree of the electric valve based on the feedback signal of the temperature and humidity detector, so as to form a controllable air flow field for reverse flushing of the material, significantly prolong the air flow contact time, realize synchronous and efficient adjustment of the temperature and humidity of the material, ensure uniform and stable temperature and humidity of the cut tobacco entering the next process, and thus guarantee the consistency of the quality of the final product.

Description

Technical Field

[0001] This application relates to the field of tobacco machinery technology, specifically a temperature and humidity control system for a vibrating conveyor. Background Technology

[0002] Vibrating conveyors are widely used material conveying equipment in tobacco production lines, especially in the tobacco processing and re-drying stages. They are responsible for the continuous conveying of various tobacco materials such as tobacco sheets, shredded tobacco, tobacco stems, shredded stems, and expanded tobacco. After high-temperature processes such as tobacco drying, the high-temperature tobacco materials are often directly transferred to subsequent processing or storage stages via vibrating conveyors.

[0003] However, when the vibrating conveyor is installed after the tobacco drying process, the temperature of the tobacco material it conveys is significantly higher. This high-temperature material fails to receive effective cooling during transport and flows directly into the next process without temperature and humidity control. This situation results in significant fluctuations in the moisture content and temperature of the tobacco material as it enters subsequent stages, severely impacting the internal quality stability of the final tobacco product.

[0004] Therefore, this application proposes a cooling device for a vibrating conveyor, which can uniformly and efficiently cool and control the moisture of high-temperature tobacco shreds during the vibrating conveying process, thereby stabilizing product quality. Utility Model Content

[0005] The main objective of this application is to provide a temperature and humidity control system for a vibrating conveyor, which aims to solve the technical problem that the high-temperature tobacco shreds conveyed after the drying process are not effectively cooled, resulting in fluctuations in their moisture and temperature, which in turn affects the internal quality stability of the tobacco shreds.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A temperature and humidity control system for a vibrating conveyor, the vibrating conveyor having a conveying channel, the temperature and humidity control system comprising:

[0008] The gas supply equipment has an adjustable output power.

[0009] The jetting mechanism includes multiple nozzles suspended above the conveying channel, an air supply pipeline connecting the output end of the air supply equipment to each nozzle, and an electric valve provided on the air supply pipeline; the opening degree of the electric valve is adjustable; the output direction of each nozzle is towards the conveying surface of the conveying channel and away from the conveying direction of the conveying channel.

[0010] A temperature and humidity detector is located downstream of the conveying channel in the conveying direction to detect the temperature and humidity of the conveyed material;

[0011] The controller is electrically connected to the gas supply equipment, the electric valve, and the temperature and humidity detector, respectively.

[0012] As a further improvement of this application, the gas supply pipeline includes: at least three branch pipes equidistantly arranged along the width direction of the conveying channel, the axial direction of each branch pipe being parallel to the conveying direction of the conveying channel; on the inner sides of the two outermost branch pipes close to each other, a plurality of nozzles are equidistantly arranged along the axial direction; one or more branch pipes in the middle have a plurality of nozzles equidistantly arranged along the axial direction on both sides along the width direction of the conveying channel.

[0013] As a further improvement of this application, the output direction of the nozzle forms a first preset angle of less than 90° with the conveying direction of the conveying channel, and forms a second preset angle of less than 90° with the width direction of the conveying channel.

[0014] As a further improvement of this application, the gas supply pipeline also includes a main pipe, the input end of which is connected to the output end of the gas supply equipment, the output end of which is connected to each branch pipe respectively, and the electric valve is provided on the main pipe.

[0015] The technical solution provided in this application may include the following beneficial effects:

[0016] During use, this application utilizes an air supply device combined with a group of nozzles positioned facing the conveying surface of the conveying channel and opposite to the material conveying direction to precisely cover the surface of the high-temperature tobacco shreds with controllable airflow. This significantly extends the contact time between the airflow and the material and enhances the efficiency of heat and moisture exchange. Simultaneously, by dynamically adjusting the air supply power and the opening of the electric valve based on real-time temperature and humidity monitoring data downstream of the conveying process, a closed-loop control is formed. This effectively overcomes the shortcomings of insufficient cooling of high-temperature tobacco shreds during traditional conveying processes, ensuring that the temperature and humidity of the material tend to be uniform and stable before entering the next process, fundamentally guaranteeing the consistency of the internal quality of the final tobacco shred product. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of a temperature and humidity control system for a vibrating conveyor.

[0019] Figure label:

[0020] 100. Conveying channel;

[0021] 1. Gas supply equipment; 2. Jet mechanism; 21. Nozzle; 22. Gas supply pipeline; 221. Branch pipe; 222. Main pipe; 23. Electric valve; 3. Temperature and humidity detector. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this application. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] Figure 1 An embodiment of a temperature and humidity control system for a vibrating conveyor according to this application is shown. See [link to relevant documentation]. Figure 1 In this embodiment, the vibrating conveyor is provided with a conveying channel, and the temperature and humidity control system includes: an air supply device 1, an air jet mechanism 2, a temperature and humidity detector 3, and a controller.

[0024] Among them, see Figure 1 The jetting mechanism 2 includes multiple nozzles 21 suspended above the conveying channel 100, an air supply pipeline 22 connecting the output end of the air supply device 1 to each nozzle 21, and an electric valve 23 installed on the air supply pipeline 22; the opening degree of the electric valve 23 is adjustable; the output direction of each nozzle 21 is towards the conveying surface of the conveying channel 100 and away from the conveying direction of the conveying channel 100; the temperature and humidity detector 3 is installed downstream of the conveying direction of the conveying channel 100 and is used to detect the temperature and humidity of the conveyed material; the controller is electrically connected to the air supply device 1, the electric valve 23 and the temperature and humidity detector 3 respectively. During use, the air supply device 1, combined with a group of nozzles 21 facing the conveying surface of the conveying channel 100 and arranged against the material conveying direction, precisely covers the surface of the high-temperature tobacco with controllable airflow, significantly extending the contact time between the airflow and the material and enhancing the heat and moisture exchange efficiency. At the same time, by using real-time temperature and humidity detection data from the downstream of the conveying process, the air supply power and the opening of the electric valve 23 are dynamically adjusted to form a closed-loop control, effectively overcoming the defect of insufficient cooling of high-temperature tobacco in the traditional conveying process. This ensures that the temperature and humidity of the material tend to be uniform and stable before entering the next process, fundamentally guaranteeing the consistency of the internal quality of the final tobacco product.

[0025] Optionally, the air supply device 1 may be selected from, but is not limited to, a variable frequency centrifugal fan, an axial flow fan, or a Roots blower, and equipped with a corresponding frequency converter to achieve stepless adjustment of the output power; or, the air supply device 1 may also be composed of a combination of compressed air pipeline network, pressure regulating valve, and flow meter, and the output power is controlled by adjusting the air supply pressure and flow rate; in addition, the air supply device 1 may also integrate temperature and humidity control modules such as heaters, coolers, humidifiers or dehumidifiers, as well as air filters, so as to provide regulated airflow with specific temperature, humidity and cleanliness as needed.

[0026] Further, see Figure 1 The air supply line 22 includes at least three branch pipes 221 equidistantly arranged along the width of the conveying channel 100, with the axial direction of each branch pipe 221 parallel to the conveying direction of the conveying channel 100. On the inner sides of the two outermost branch pipes 221, which are close to each other, multiple nozzles 21 are equidistantly arranged along the axial direction. On one or more branch pipes 221 in the middle, multiple nozzles 21 are equidistantly arranged along the axial direction on both sides of the conveying channel 100. This arrangement ensures that the regulating airflow can uniformly cover the material surface across the entire width of the conveying channel 100, effectively eliminating cooling blind spots and significantly improving the uniformity of temperature and humidity regulation of the material in the width direction.

[0027] Further, see Figure 1 The output direction of nozzle 21 forms a first preset angle of less than 90° with the conveying direction of conveying channel 100, and a second preset angle of less than 90° with the width direction of conveying channel 100. This allows the airflow output from nozzle 21 to penetrate the material layer in the opposite direction, which can significantly prolong the contact time and increase the penetration depth. At the same time, the centripetal convergence of airflows on both sides enhances the turbulence effect, achieving efficient and dynamic temperature and humidity control of the material surface and interior.

[0028] Optionally, the first preset included angle is [45°, 60°], and the second preset included angle is [20°, 40°].

[0029] Further, see Figure 1 The gas supply pipeline 22 also includes a main pipe 222, the input end of which is connected to the output end of the gas supply device 1, and the output end of the main pipe 222 is connected to each branch pipe 221 respectively. An electric valve 23 is provided on the main pipe 222 to enable efficient and unified adjustment of the gas supply volume, ensuring that the gas supply can quickly respond to control commands and be evenly distributed to each branch pipe 221.

[0030] Optionally, the controller can be a dedicated integrated circuit board or microcontroller module with a microprocessor, memory and input / output interface. Through the built-in PID control algorithm or fuzzy control logic, it can collect the signal of the temperature and humidity detector 3 in real time, dynamically calculate the required power level of the air supply equipment 1 and the opening value of the electric valve 23, and output the corresponding control signals to the frequency converter or drive unit of the air supply equipment 1 and the actuator of the electric valve 23 to achieve precise closed-loop regulation of the cooling air flow rate and velocity.

[0031] For example, the working principle of a temperature and humidity control system:

[0032] The controller receives the actual temperature and humidity signal of the material collected by the temperature and humidity detector 3 downstream of the conveying channel 100 in real time, compares it with the preset target temperature and humidity value, and calculates the deviation. Based on this deviation value (such as using PID algorithm or fuzzy control logic), the controller dynamically calculates the required airflow intensity (corresponding to the output power level of the air supply device 1) and airflow rate (corresponding to the opening value of the electric valve 23 on the main pipe 222), and outputs the corresponding control signal. The air supply device 1 adjusts its speed or pressure accordingly to change the wind speed and wind pressure of the output airflow, while the electric valve 23 adjusts its opening to control the total air supply. Finally, a reverse cooling airflow field with controlled flow rate, velocity, and coverage is formed in the conveying channel 100. This airflow field fully exchanges heat (cooling) and moisture (evaporation or inhibition of evaporation) with the surface of the high-temperature tobacco, so that the material is continuously and uniformly adjusted to the target temperature and humidity state during the conveying process. The downstream detection value is fed back to the controller to form a closed-loop control to ensure the adjustment accuracy and stability.

[0033] In this embodiment, by using the adjustable air supply device 1, a group of nozzles 21 with a specific layout and angle, and real-time detection of temperature and humidity downstream, combined with the controller's closed-loop coordinated control of the air supply power and the electric valve 23 of the main pipe 222, a reverse dynamic cooling airflow field with controlled flow rate, velocity, and coverage is constructed during the material conveying process. This airflow field not only penetrates the material layer uniformly and significantly prolongs the heat and moisture exchange time, effectively eliminating cooling blind spots, but also efficiently and accurately regulates the temperature and moisture of the high-temperature tobacco shreds synchronously, ensuring that the temperature and humidity are highly uniform and stable before entering the next process. This fundamentally solves the problem of temperature and humidity fluctuations in the material after drying, significantly improving the internal quality consistency and stability of the final tobacco product.

[0034] It should be noted that the core innovation of this application lies in the collaborative working principle and control logic of the air supply device 1, temperature and humidity detector 3, electric valve 23, and controller in the cooling system of the vibrating conveyor. The structure and basic functions of each of the above components are existing technologies in the field. Those skilled in the art can select appropriate existing equipment to implement the corresponding functions according to actual needs. Therefore, this application will not elaborate on their specific structures.

[0035] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A temperature and humidity control system for a vibrating conveyor, wherein the vibrating conveyor is provided with a conveying channel, characterized in that, The temperature and humidity control system includes: The gas supply equipment has an adjustable output power. The jetting mechanism includes multiple nozzles suspended above the conveying channel, an air supply pipeline connecting the output end of the air supply equipment to each nozzle, and an electric valve provided on the air supply pipeline; the opening degree of the electric valve is adjustable; the output direction of each nozzle is towards the conveying surface of the conveying channel and away from the conveying direction of the conveying channel. A temperature and humidity detector is located downstream of the conveying channel in the conveying direction to detect the temperature and humidity of the conveyed material; The controller is electrically connected to the gas supply equipment, the electric valve, and the temperature and humidity detector, respectively.

2. The temperature and humidity control system according to claim 1, characterized in that, The gas supply pipeline includes: at least three branch pipes equidistantly arranged along the width of the conveying channel, the axis of each branch pipe being parallel to the conveying direction of the conveying channel; on the inner sides of the two outermost branch pipes close to each other, a plurality of nozzles are equidistantly arranged along the axial direction; one or more branch pipes in the middle have a plurality of nozzles equidistantly arranged along the axial direction on both sides of the conveying channel width direction.

3. The temperature and humidity control system according to claim 2, characterized in that, The output direction of the nozzle forms a first preset angle of less than 90° with the conveying direction of the conveying channel, and forms a second preset angle of less than 90° with the width direction of the conveying channel.

4. The temperature and humidity control system according to claim 3, characterized in that, The gas supply pipeline also includes a main pipe, the input end of which is connected to the output end of the gas supply equipment, and the output end of the main pipe is connected to each branch pipe respectively. The electric valve is located on the main pipe.

Images