A laser monitoring device for tobacco material distribution in a fluidized bed and pressure fluctuations and a method of using the same

Abstract

The present application relates to the tobacco conveying technical field, particularly to a kind of laser monitoring device of tobacco material distribution and air pressure fluctuation in fluidized bed, including laser transmitter upper monitor and alarm;Laser transmitter and laser receiver are respectively set on the two inner side walls of conveying area in fluidized bed, laser transmitter and laser receiver are symmetrically arranged, the conveying area between laser transmitter and laser receiver is tobacco material conveying area, laser receiver is electrically connected with tobacco material form distribution / air pressure fluctuation processor by A / D analog converter, upper monitor is electrically connected with tobacco material distribution / air pressure fluctuation identifier, alarm is electrically connected with upper monitor, solve the problem that the existing air pressure fluctuation monitoring equipment in fluidized bed is greatly influenced by environmental factors, indirectly lead to the accuracy of the monitored result is low and the existing tobacco material distribution form in fluidized bed is not monitored, indirectly lead to the problem that real-time distribution form of tobacco material in fluidized bed cannot be grasped.

Description

Technical Field

[0001] This invention relates to the field of tobacco material conveying technology, and in particular to a laser monitoring device for the distribution of tobacco material and air pressure fluctuations in a fluidized bed. Background Technology

[0002] In the cigarette manufacturing process, the fluidized bed is a key piece of equipment for conveying tobacco shreds, and the stability of the tobacco shreds within the fluidized bed directly affects production efficiency and product quality. Currently, during cigarette manufacturing, under the coordination of positive and negative pressure gases within the fluidized bed, the tobacco shreds are flexibly conveyed upwards along the arc-shaped body of the fluidized bed. For the specific conveying process, please refer to the attached diagram in the instruction manual. Figure 5 .like Figure 5 In the fluidized bed A feed inlet of the cigarette making unit, the needle roller picks up the tobacco material H. Under the action of gravity, the tobacco material enters the fluidized bed A and moves in the direction shown by arrow 3. When the tobacco material moves to the position where airflow B is set on the fluidized bed A, the gas blown out by airflow B will carry the tobacco material in the fluidized bed A forward (the air pressure of airflow B is measured by pressure gauge P1). The heavier stems in the tobacco material fall downwards along the direction shown by position C on the fluidized bed, realizing the first stem separation of the tobacco material in the fluidized bed A. Then, when the tobacco material conveyed forward in the fluidized bed A reaches the middle position of the fluidized bed A, the tobacco material is subjected to the force of airflow B conveying the tobacco material forward and the airflow D blown out from the bottom of the fluidized bed A (airflow D is measured by pressure gauge P4) to the tobacco material. The upward force and the negative pressure airflow F directly above fluidized bed A exert an upward force on the tobacco material (the air pressure of airflow F is measured by pressure P2). These three forces prevent the tobacco material in fluidized bed A from contacting the bottom of the fluidized bed and continue to be conveyed forward. Then, when the forward-conveyed tobacco material is conveyed to the vertical part of fluidized bed A, that is, the position on the suction belt connected to the outlet of fluidized bed A, the negative pressure airflow E (airflow E is measured by pressure gauge P3) at the suction belt will adsorb the tobacco onto the suction belt. Then, the suction belt will be conveyed to the cigarette rolling station of the cigarette rolling group for cigarette rolling. It can be seen that the four airflows B, D, F and E in the fluidized bed affect the air pressure in the fluidized bed. The air pressure in the fluidized bed is an important factor for the stable conveying of tobacco material in the fluidized bed. Therefore, monitoring the air pressure fluctuation in the fluidized bed is very important.

[0003] The current method for detecting the gas pressure inside a fluidized bed is mainly based on conventional pressure sensors such as P1, P2, P3, and P4. Although this method can achieve real-time monitoring of the gas pressure inside the fluidized bed, it still has the following drawbacks in actual use: (1) Since conventional pressure sensors such as P1, P2, P3, and P4 are installed on pipes that are used to deliver gas into the fluidized bed or to discharge gas from the fluidized bed, the pressure sensors detect a certain error between the gas pressure on the pipes and the actual gas pressure inside the fluidized bed; (2) Using conventional pressure sensors such as P1, P2, P3, and P4 When the device monitors the air pressure inside the fluidized bed, conventional pressure sensors such as P1, P2, P3 and P4 are easily affected by environmental factors such as high temperature, high pressure and tobacco material, which affects the accuracy of the monitoring results. That is, the accuracy of the monitoring structure is low. (3) In addition to the above-mentioned defects, when the tobacco material is transported along the fluidized bed, the pressure fluctuations of positive and negative airflows in the fluidized bed can easily lead to uneven transport of the tobacco material and changes in the shape of the tobacco material. This situation can easily lead to tobacco blockage at the air chamber at the fluidized bed outlet, which indirectly leads to unstable cigarette rolling quality. If this situation occurs, it is necessary to stop the machine to clean the tobacco at the air chamber or frequently adjust the cigarette weight. Both of these methods will lead to many problems such as reduced equipment efficiency and waste of tobacco material. For monitoring the distribution shape of the tobacco material transported in the fluidized bed, no suitable tobacco material distribution shape monitoring device has been found yet.

[0004] Therefore, it is necessary to improve and design the monitoring equipment for monitoring air pressure fluctuations and the distribution morphology of tobacco materials in fluidized beds. This is to address the problems that existing monitoring equipment for air pressure fluctuations in fluidized beds is greatly affected by environmental factors, indirectly leading to low accuracy of the monitored results. Additionally, the lack of existing equipment for monitoring the distribution morphology of tobacco materials in fluidized beds indirectly results in the inability to accurately determine the real-time distribution morphology of tobacco materials within the fluidized bed. Summary of the Invention

[0005] The purpose of this invention is to propose a laser monitoring device for the distribution of tobacco materials and pressure fluctuations in a fluidized bed. This device addresses the problems of low accuracy in monitoring pressure fluctuations and the distribution of tobacco materials in a fluidized bed due to the significant influence of environmental factors on existing monitoring equipment, and the inability to accurately determine the real-time distribution of tobacco materials in the fluidized bed due to the lack of existing equipment for monitoring the distribution of tobacco materials.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This application proposes, in its first aspect, a laser monitoring device for the distribution of tobacco materials and pressure fluctuations in a fluidized bed, comprising:

[0008] Laser emitter;

[0009] The laser receiver, laser emitter, and laser receiver are respectively set on the two inner side walls of the conveying zone in the fluidized bed. The laser emitter and laser receiver are symmetrically arranged. The conveying zone between the laser emitter and laser receiver is the conveying zone for tobacco materials.

[0010] The tobacco material morphology distribution / pressure fluctuation processor and the laser receiver are electrically connected to the tobacco material morphology distribution / pressure fluctuation processor via an A / D analog-to-digital converter;

[0011] The upper-level monitor is electrically connected to the tobacco material distribution / pressure fluctuation identifier;

[0012] The alarm is electrically connected to the upper-level monitoring unit.

[0013] Preferably, the laser monitoring device for the distribution of tobacco material and pressure fluctuations in a fluidized bed also includes a remote monitoring computer, which is electrically connected to the tobacco material morphology distribution / pressure fluctuation processor via a first data transmission line.

[0014] Preferably, the laser monitoring device for the distribution of tobacco material and air pressure fluctuations in a fluidized bed also includes an industrial control computer. The industrial control computer is electrically connected to the host monitor via a second data transmission line. The industrial control computer is electrically connected to the motor in the feeding component that feeds the tobacco material into the fluidized bed, to the solenoid valve on the air pipe for inputting air into the fluidized bed, and to another solenoid valve on another air pipe for outputting air from the fluidized bed via a third data transmission line.

[0015] Preferably, the laser receiver is electrically connected to the A / D converter via a fourth data transmission line.

[0016] Preferably, the A / D converter is electrically connected to the tobacco material morphology distribution / pressure fluctuation processor via the fifth data transmission line.

[0017] Preferably, the tobacco material morphology distribution / pressure fluctuation processor is electrically connected to the host monitor via a sixth data transmission line.

[0018] Preferably, the host monitor is electrically connected to the alarm via a seventh data transmission line.

[0019] Preferably, the laser emitter and laser receiver are electrically connected to the controller via a third data transmission line.

[0020] In its second aspect, this application discloses a method for using a laser monitoring device for the distribution of tobacco materials and pressure fluctuations in a fluidized bed, comprising the following steps:

[0021] When conveying tobacco shreds in the conveying zone of the fluidized bed, the controller first controls the laser emitter and laser receiver located on both sides of the conveying zone in the fluidized bed to be in the start state, and then controls the laser emitter on one side of the conveying zone in the fluidized bed to emit laser to the laser receiver on the other side of the conveying zone in the fluidized bed.

[0022] During the process of the laser emitted by the laser emitter being transmitted to the laser receiver, the laser emitted by the laser emitter first passes through the tobacco being transported in the fluidized bed conveying zone, and is then received by the laser receiver on the other side of the fluidized bed conveying zone.

[0023] After the laser receiver receives the laser signal, the control controller first transmits the laser signal received by the laser receiver to the A / D analog-to-digital converter to convert the received laser signal into a digital signal. Then, the converted digital signal is transmitted to the tobacco material morphology distribution / pressure fluctuation processor. The tobacco material morphology distribution / pressure fluctuation processor then analyzes and processes the converted digital signal to analyze the real-time numerical information of pressure fluctuation in the fluidized bed and the real-time distribution morphology information of tobacco material.

[0024] After the tobacco material morphology distribution / pressure fluctuation processor analyzes the real-time numerical information of pressure fluctuation in the fluidized bed and the real-time distribution morphology information of tobacco material, the tobacco material morphology distribution / pressure fluctuation processor sends the real-time numerical information of pressure fluctuation in the fluidized bed and the real-time distribution morphology information of tobacco material to the remote monitoring computer for remote monitoring and analysis. On the other hand, it sends the real-time numerical information of pressure fluctuation in the fluidized bed and the real-time distribution morphology information of tobacco material to the upper monitoring device for real-time display and comparison with the preset pressure range and the preset range of tobacco material distribution morphology in the upper monitoring device.

[0025] If the real-time value of the air pressure fluctuation in the fluidized bed is not within the preset air pressure range of the upper monitoring device, or if the real-time distribution pattern of the tobacco material in the fluidized bed is not within the preset range of the tobacco material distribution pattern of the upper monitoring device, the upper monitoring device will trigger the alarm to issue a warning and send the corresponding abnormal information to the industrial control computer that controls the tobacco conveying on the fluidized bed.

[0026] After receiving the corresponding abnormal information, the industrial control computer controls the motor in the feeding component that feeds the tobacco material into the fluidized bed, the solenoid valve on the air pipe that feeds air into the fluidized bed, and another solenoid valve on another air pipe that feeds air into the fluidized bed to make timely adjustments so that the air pressure in the fluidized bed and the distribution pattern of the tobacco material in the conveying zone of the fluidized bed are within the normal range.

[0027] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0028] 1. In this invention, a laser emitter and a laser receiver are respectively disposed on the two inner sidewalls of the conveying zone within a fluidized bed, with the laser emitter and laser receiver arranged symmetrically. The conveying zone between the laser emitter and laser receiver is the zone for conveying tobacco materials.

[0029] The laser receiver is electrically connected to the tobacco material morphology distribution / pressure fluctuation processor via an A / D converter. The host monitor is electrically connected to the tobacco material distribution / pressure fluctuation identifier, and the alarm is electrically connected to the host monitor. When monitoring the pressure fluctuations and tobacco material morphology distribution within the fluidized bed, the laser emitted by the laser transmitter first passes through the tobacco material being conveyed in the fluidized bed conveying zone. The laser signal after passing through the tobacco material is received by the laser receiver. Then, the laser signal received by the laser receiver is sent to the A / D converter for digital signal conversion. The laser signal, converted into a digital signal, is sent to a tobacco material distribution / pressure fluctuation identifier for processing. This identifier obtains real-time pressure fluctuation information and tobacco material morphology distribution information within the fluidized bed. Finally, this information is transmitted to a higher-level monitor. The monitor displays this information, allowing operators to intuitively and in real-time understand the pressure fluctuations within the fluidized bed. It also performs anomaly checks on these indicators. If the fluidized bed... When the real-time air pressure fluctuations or the distribution of tobacco shreds within the fluidized bed are abnormal, the upper-level monitor will trigger an alarm, promptly reminding relevant personnel to adjust the equipment parameters on the fluidized bed accordingly. This indirectly controls the input of tobacco shreds into the fluidized bed or controls air pressure fluctuations within the fluidized bed, ensuring that the air pressure and the distribution of tobacco shreds in the conveying zone are within normal ranges. In this way, not only can the distribution of tobacco shreds and the air pressure fluctuations within the fluidized bed be monitored and controlled in real time, but also when the distribution of tobacco shreds within the fluidized bed is abnormal or when air pressure fluctuations are abnormal, the upper-level monitor will trigger an alarm, promptly reminding relevant personnel to adjust the equipment parameters on the fluidized bed accordingly. In case of abnormalities, timely warnings, reminders, and adjustments are provided to ensure efficient and flexible conveying of tobacco materials within the fluidized bed. Furthermore, this real-time monitoring process is unaffected by environmental factors such as high temperature, high pressure, and the nature of the tobacco materials themselves. The monitoring results are also highly accurate. This addresses the problems of low accuracy in monitoring air pressure fluctuations and the lack of equipment specifically designed to monitor the distribution of tobacco materials within the fluidized bed. Existing equipment for monitoring air pressure fluctuations is highly susceptible to environmental factors, indirectly leading to inaccurate results. Additionally, the absence of equipment specifically designed to monitor the distribution of tobacco materials within the fluidized bed also indirectly results in the inability to accurately determine their real-time distribution.

[0030] 2. The remote monitoring computer in this invention is electrically connected to the tobacco material morphology distribution / pressure fluctuation processor via the first data transmission line. When it is necessary to remotely understand the real-time numerical information of the air pressure and the real-time distribution morphology of the tobacco material in the fluidized bed, the tobacco material morphology distribution / pressure fluctuation processor will transmit the real-time numerical information of the air pressure and the real-time distribution morphology of the tobacco material in the fluidized bed to the remote monitoring computer via the first data transmission line. In this way, it is not only convenient for relevant personnel to remotely monitor the working conditions in the fluidized bed in real time, but also convenient for relevant personnel to remotely perform corresponding analysis based on the working conditions in the fluidized bed, thereby improving the control level of the fluidized bed.

[0031] 3. The laser monitoring device for the distribution of tobacco materials and pressure fluctuations in a fluidized bed in this invention can be applied to the monitoring of tobacco materials and pressure fluctuations in fluidized beds of different types and sizes. It has wide applicability and is suitable for widespread use in tobacco factories. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of part of the circuit connection in a laser monitoring device for the distribution of tobacco materials and pressure fluctuations in a fluidized bed according to the present invention. Figure 1 .

[0033] Figure 2 This is a schematic diagram of part of the circuit connection in a laser monitoring device for the distribution of tobacco materials and pressure fluctuations in a fluidized bed according to the present invention. Figure 2 .

[0034] Figure 3 This is a schematic diagram of part of the circuit connection in a laser monitoring device for the distribution of tobacco materials and pressure fluctuations in a fluidized bed according to the present invention. Figure 3 .

[0035] Figure 4 This is a schematic diagram illustrating the usage method of a laser monitoring device for tobacco material distribution and air pressure fluctuation in a fluidized bed, as described in this invention. Figure 1 .

[0036] Figure 5 This is a schematic diagram showing the installation of the fluidized bed and the device for monitoring air pressure fluctuations within the fluidized bed in this invention.

[0037] Figure 6 This is a schematic diagram of the installation of the laser emitter, laser receiver, and fluidized bed in this invention.

[0038] In the diagram, 1- Laser emitter, 2- Laser receiver, 3- Fluidized bed, 4- Conveying zone, 5- Tobacco material morphology distribution / pressure fluctuation processor, 6- A / D analog-to-digital converter, 7- Upper-level monitor, 8- Alarm, 9- Controller, 10- Remote monitoring computer, 11- First data transmission line, 12- Second data transmission line, 13- Third data transmission line, 14- Fourth data transmission line, 15- Fifth data transmission line, 16- Sixth data transmission line, 18- Industrial control computer, 19- Seventh data transmission line. Detailed Implementation

[0039] like Figure 1-6 As shown, to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below 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 are not intended to limit the present invention.

[0040] Example

[0041] The current method for detecting the air pressure inside a fluidized bed is mainly carried out by conventional pressure sensors such as P1, P2, P3 and P4. Although this method can achieve real-time monitoring of the air pressure inside the fluidized bed, there are still the following defects in actual use: (1) Since conventional pressure sensors such as P1, P2, P3 and P4 are installed on equipment pipelines far away from the fluidized bed, there is a certain error between the pressure sensor's detection of the air pressure on the pipeline and the actual air pressure inside the fluidized bed; (2) When using conventional pressure sensors such as P1, P2, P3 and P4 to monitor the air pressure inside the fluidized bed, the conventional pressure sensors such as P1, P2, P3 and P4 are easily affected by environmental factors such as high temperature, high pressure and tobacco materials, which affects the accuracy of the monitoring results to a certain extent, that is, the accuracy of the monitoring structure is low. (3) In addition to the existing defects mentioned above, when the tobacco material is conveyed along the fluidized bed, the pressure fluctuations caused by the positive and negative airflows within the fluidized bed can easily lead to uneven conveying and changes in the morphology of the tobacco material. This can easily cause tobacco blockage at the air chamber at the fluidized bed outlet, indirectly resulting in unstable cigarette rolling quality. If this occurs, it is necessary to stop the machine to clean the tobacco in the air chamber or frequently adjust the cigarette weight. Both of these methods will lead to reduced equipment efficiency and waste of tobacco material. Currently, no suitable equipment has been found to monitor the distribution morphology of the tobacco material conveyed in the fluidized bed.

[0042] Therefore, this application proposes a laser monitoring device and its method for monitoring the distribution of tobacco materials and pressure fluctuations in a fluidized bed, in order to solve the problems of low accuracy of existing monitoring equipment for pressure fluctuations in fluidized beds due to the large influence of environmental factors, and the inability to grasp the real-time distribution of tobacco materials in fluidized beds due to the lack of existing equipment for monitoring the distribution of tobacco materials in fluidized beds.

[0043] For details, please refer to Figure 1 and Figure 6 This application proposes a laser monitoring device for the distribution of tobacco materials and pressure fluctuations in a fluidized bed in its first aspect. The laser monitoring device for the distribution of tobacco materials and pressure fluctuations in a fluidized bed includes a laser emitter 1, a laser receiver 2, a tobacco material morphology distribution / pressure fluctuation processor 5, a host monitor 7, and an alarm 8. The laser emitter 1 and the laser receiver 2 are respectively disposed on the two inner side walls of the conveying zone 4 in the fluidized bed 3. The laser emitter 1 and the laser receiver 2 are symmetrically arranged. The conveying zone 4 between the laser emitter 1 and the laser receiver 2 is the tobacco material conveying zone. The laser receiver 2 is electrically connected to the tobacco material morphology distribution / pressure fluctuation processor 5 through an A / D analog-to-digital converter 6. The host monitor 7 is electrically connected to the tobacco material distribution / pressure fluctuation identifier 5. The alarm 8 is electrically connected to the host monitor 7.

[0044] In practical applications, when monitoring the pressure fluctuations and tobacco material distribution within the fluidized bed 1, the laser emitted by the laser emitter 1 first passes through the tobacco material being transported in the conveying zone 4 of the fluidized bed 1. The laser signal after passing through the tobacco material is received by the laser receiver 2. Then, the laser signal received by the laser receiver 2 is sent to the A / D analog-to-digital converter 6 for digital signal conversion. Next, the converted digital laser signal is sent to the tobacco material distribution / pressure fluctuation identifier 5 for processing to obtain real-time pressure fluctuation information and tobacco material distribution information within the fluidized bed. The information on the distribution of material morphology is then transmitted to the upper-level monitor 7, which displays the real-time air pressure fluctuations and tobacco morphology distribution within the fluidized bed for operators to understand the air pressure fluctuations more intuitively and in real time. Simultaneously, the upper-level monitor assesses whether these information is abnormal. If the real-time air pressure fluctuations or tobacco morphology distribution are within an abnormal range, the upper-level monitor will detect and process the abnormal information. When the monitor 7 is activated, an alarm is triggered, promptly reminding relevant personnel to adjust the equipment parameters on fluidized bed 1 accordingly. This indirectly controls the input amount of tobacco material entering fluidized bed 1 or controls the air pressure fluctuations within the fluidized bed, ensuring that the air pressure and the distribution of tobacco material in the conveying zone of fluidized bed 1 are within normal ranges. In this way, not only can the distribution of tobacco material and air pressure fluctuations within fluidized bed 1 be monitored and controlled in real time, but timely warnings, reminders, and adjustments can also be made when the distribution of tobacco material or the air pressure fluctuations within fluidized bed 1 are abnormal. This method ensures efficient and flexible conveying of tobacco materials within a fluidized bed, and the real-time monitoring process is unaffected by environmental factors such as high temperature, high pressure, and the nature of the tobacco materials. Furthermore, the monitoring results are highly accurate. This addresses the problems of low accuracy in monitoring air pressure fluctuations and the distribution of tobacco materials within a fluidized bed, which are often influenced by environmental factors. Additionally, the lack of existing equipment for monitoring the distribution of tobacco materials within the fluidized bed prevents the accurate determination of their real-time distribution.

[0045] It should be noted that the tobacco material morphology distribution / pressure fluctuation processor 5 includes a signal receiving module, a tobacco material morphology distribution calculation module, a pressure fluctuation calculation module, and a signal transmitting module; wherein, the signal receiving module is used to receive the laser digital signal transmitted by the A / D analog-to-digital converter 6, and the tobacco material morphology distribution calculation module is used to calculate the morphology distribution of tobacco material in the fluidized bed based on the laser digital signal and the calculation model. (Where, Q represents the flow distribution pattern of tobacco material in the fluidized bed; A represents the cross-sectional area of ​​the fluidized bed; V represents the average velocity of the tobacco material; ρ represents the average concentration of the tobacco material; L represents the propagation path length of the laser in the fluidized bed, which is generally the width of the fluidized bed; α(ρ) represents the absorption coefficient related to the concentration ρ of the tobacco material; β(ρ) represents the scattering coefficient of the laser passing through the tobacco material in the fluidized bed; γ(ρ) represents the scattering coefficient of the laser passing through the tobacco material in the fluidized bed), calculate and reconstruct the morphological distribution of the tobacco material; the pressure fluctuation calculation module is used to calculate the pressure fluctuation based on the laser digital signal and the pressure fluctuation model in the fluidized bed. (Where, I is the laser digital signal intensity after the laser signal passes through the fluidized bed tobacco material; I0 is the initial laser digital signal intensity, i.e., the initial intensity before the laser passes through the tobacco material; σ is the extinction coefficient; P is the air pressure in the fluidized bed; P0 is the air pressure at room temperature; ρ0 is the density of the tobacco material at room temperature; L is the propagation path length of the laser in the fluidized bed, generally the width of the fluidized bed.), calculate the air pressure fluctuation value in the fluidized bed; the transmitting module is used to send the calculated air pressure fluctuation value in the fluidized bed and the morphological distribution of the tobacco material to the upper monitoring unit; the upper monitoring unit includes an information receiving module, a fluidized bed air pressure fluctuation anomaly judgment module, a fluidized bed tobacco material distribution morphological anomaly judgment module, and an information display and transmitting module; among which, the information receiving module, This module is used to receive information on air pressure fluctuations and the morphological distribution of tobacco materials within the fluidized bed. The fluidized bed air pressure fluctuation anomaly determination module compares the distribution pattern of the tobacco materials in the fluidized bed with that of normal tobacco materials. If the distribution pattern matches that of normal tobacco materials, the distribution pattern is considered normal. If the distribution pattern is denser or more sparser than that of normal tobacco materials, the distribution pattern is considered abnormal. The fluidized bed tobacco material distribution anomaly determination module compares the air pressure fluctuation values ​​within the fluidized bed with a preset air pressure fluctuation range threshold. If the air pressure fluctuation values ​​are within the preset air pressure fluctuation range threshold, the air pressure fluctuations are considered normal. If the air pressure fluctuation value in the fluidized bed is not within the preset air pressure fluctuation range threshold, the air pressure fluctuation in the fluidized bed is abnormal. The information display and sending module is used to display the abnormal air pressure fluctuation information, the normal air pressure fluctuation information, the normal distribution pattern of the tobacco material in the fluidized bed, and the abnormal distribution pattern of the tobacco material in the fluidized bed, and send the abnormal air pressure fluctuation information and the abnormal distribution pattern of the tobacco material in the fluidized bed to the alarm 8 to trigger the alarm for early warning.

[0046] Please see Figure 2 and Figure 3In order to remotely acquire real-time numerical information of air pressure and real-time distribution morphology information of tobacco material in fluidized bed 1, a laser monitoring device for tobacco material distribution and air pressure fluctuation in fluidized bed also includes a remote monitoring computer 10. The remote monitoring computer 10 is electrically connected to the tobacco material morphology distribution / air pressure fluctuation processor 5 through the first data transmission line 11.

[0047] In practical applications, when it is necessary to remotely obtain real-time information on the air pressure and the real-time distribution of tobacco materials within the fluidized bed 1, the tobacco material distribution / air pressure fluctuation processor 5 will transmit the analyzed real-time air pressure and tobacco material distribution information within the fluidized bed 1 to the remote monitoring computer 10 via the first data transmission line 11. This not only facilitates the remote real-time monitoring of the working conditions within the fluidized bed 1 by relevant personnel, but also facilitates the remote analysis of the working conditions within the fluidized bed 1 by relevant personnel.

[0048] It should be noted that the remote monitoring computer 10 is existing technology, and no improvements or designs have been made to it; therefore, its structure will not be described in detail.

[0049] Please see Figure 2 and Figure 3 To enable the adjustment of the corresponding equipment on the fluidized bed 1 based on the real-time abnormal information of air pressure fluctuations and the real-time abnormal information of tobacco material distribution, a laser monitoring device for tobacco material distribution and air pressure fluctuations in the fluidized bed further includes an industrial control computer 18. The industrial control computer 18 is electrically connected to the upper monitoring device 7 through the second data transmission line 12. The industrial control computer 18 is electrically connected to the motor in the feeding component that feeds tobacco material into the fluidized bed, the solenoid valve on the air pipe for inputting air into the fluidized bed 1, and another solenoid valve on another air pipe for outputting air from the fluidized bed through the third data transmission line 13.

[0050] In practical applications, after the host monitor 8 detects abnormal real-time values ​​of air pressure fluctuations and tobacco material distribution in the fluidized bed, it transmits these information to the industrial control computer 18 via the second data transmission line 12. Based on the received information, the industrial control computer 18 then uses the third data transmission line 13 to adjust the motor in the feeding component that feeds the tobacco material into the fluidized bed, the solenoid valve on the air pipe that inputs air into the fluidized bed 1, and another solenoid valve on another air pipe that outputs air into the fluidized bed. This adjustment brings the air pressure and tobacco material distribution in the fluidized bed 1 within a suitable range.

[0051] It should be noted that the industrial control computer 18, the solenoid valve, and another solenoid valve are all existing technologies, and no improvements or designs have been made to them. Therefore, their structures will not be described in detail.

[0052] It should be noted that the feeding component is located at the feed inlet of the fluidized bed and is mainly used to feed the tobacco stored in the tobacco storage box into the fluidized bed to control the amount of tobacco entering the fluidized bed 1. The feeding component includes a feeding shaft, feeding columns, and a motor. The feeding shaft is located at the outlet of the tobacco storage box and the feed inlet of the fluidized bed. Both ends of the feeding shaft are rotatably connected to the side walls of the feed inlet of the fluidized bed. Feeding columns are arranged at intervals on the outer wall of the feeding shaft. One end of the feeding shaft extends out of the side wall of the feed inlet of the fluidized bed and is connected to the motor.

[0053] It should be noted that both the air pipe for inputting air into the fluidized bed 1 and the other air pipe for inputting air into the fluidized bed 1 are embedded in the fluidized bed 1, and the outlet ends of the air pipe for inputting air into the fluidized bed 1 and the other air pipe for outputting air into the fluidized bed 1 are located inside the fluidized bed 1; wherein, the air pipe for inputting air into the fluidized bed 1 is connected to the air supply end of the air compressor; and the other air pipe for inputting air into the fluidized bed 1 is connected to the output end of the air compressor.

[0054] Please see Figure 2 and Figure 3 To facilitate smoother information transmission between the laser receiver 2 and the A / D converter 6, the laser receiver 2 is electrically connected to the A / D converter 6 via the fourth data transmission line 14.

[0055] In practical applications, during the process of laser receiver 2 transmitting the laser signal received and passing through the tobacco material to A / D converter 6, laser receiver 2 will smoothly and efficiently transmit the laser signal received and passing through the tobacco material to A / D converter 6 through the fourth data transmission line, so that A / D converter 6 can perform digital conversion processing on the input laser signal.

[0056] It should be noted that the laser receiver 2 is existing technology and has not been improved or redesigned, so its structure will not be described in detail.

[0057] Please see Figure 2 and Figure 3 In order to ensure that the laser digital signal information converted by the A / D converter 6 can be transmitted smoothly and efficiently to the tobacco material morphology distribution / pressure fluctuation processor 5, the A / D converter 6 is electrically connected to the tobacco material morphology distribution / pressure fluctuation processor 5 through the fifth data transmission line 15.

[0058] In practical applications, during the process of the A / D converter 6 transmitting the converted laser digital signal information to the tobacco material morphology distribution / pressure fluctuation processor 5, the A / D converter 6 will smoothly and efficiently transmit the converted laser digital signal information to the tobacco material morphology distribution / pressure fluctuation processor 5 through the fifth data transmission line 15, so that the tobacco material morphology distribution / pressure fluctuation processor 5 can subsequently analyze and process the converted laser digital signal information.

[0059] It should be noted that the A / D analog-to-digital converter 6 is existing technology, and no improvements or designs have been made to it; therefore, its structure will not be described in detail.

[0060] Please see Figure 2 and Figure 3 To facilitate smoother information transmission between the tobacco material morphology distribution / pressure fluctuation processor 5 and the host monitor 7, the tobacco material morphology distribution / pressure fluctuation processor 5 is electrically connected to the host monitor 7 via the sixth data transmission line 16.

[0061] In practical applications, during the process of the tobacco material morphology distribution / pressure fluctuation processor 5 transmitting the analyzed real-time numerical information of pressure fluctuation in the fluidized bed and the real-time distribution morphology information of tobacco material to the host monitor 7, the tobacco material morphology distribution / pressure fluctuation processor 5 will transmit the information to the host monitor 7 more smoothly and efficiently through the sixth data transmission line 16.

[0062] Please see Figure 2 and Figure 3 When the upper-level monitor 7 detects abnormal distribution of tobacco material morphology or abnormal air pressure fluctuation in the fluidized bed 1, in order to ensure that the upper-level monitor 7 can successfully transmit the abnormal distribution of tobacco material morphology or abnormal air pressure fluctuation information to the alarm 9, the upper-level monitor 7 is electrically connected to the alarm 8 through the seventh data transmission line 19.

[0063] In practical applications, if the real-time value of the air pressure fluctuation in the fluidized bed is not within the preset air pressure range of the upper monitoring device 7, or if the real-time distribution pattern of the tobacco material in the fluidized bed is not within the preset range of the tobacco material distribution pattern of the upper monitoring device 7, the upper monitoring device 7 will efficiently trigger the alarm device 8 through the seventh data transmission line 19 to provide timely warnings so that relevant operators can understand whether the working conditions in the fluidized bed 1 are abnormal.

[0064] It should be noted that alarm 8 is existing technology and has not been improved or redesigned, therefore its structure will not be described in detail.

[0065] Please see Figure 3 To facilitate the control of laser transmitter 1 and laser receiver 2, laser transmitter 1 and laser receiver 2 are electrically connected to controller 9 via third data transmission line 13.

[0066] In practical applications, during the process of laser transmitter 1 emitting laser towards laser receiver 2, the controller first controls both laser transmitter 1 and laser receiver 2 to be in working state. Then, the controller controls laser transmitter 1 to emit laser towards laser receiver 2. The emitted laser passes through the tobacco material in the conveying zone 4 of fluidized bed 1. The laser passing through the tobacco material in the conveying zone 4 of fluidized bed 1 then reaches laser receiver 2, where it is received and stored. In this way, the controller can better control laser transmitter 1 and laser receiver 2.

[0067] It should be noted that the laser transmitter 1, laser receiver 2 and controller are existing technologies, and no improvements or designs have been made to them, so their structures will not be described in detail; among them, the controller is a PLC programmable logic controller.

[0068] This application discloses a method for using a laser monitoring device for the distribution of tobacco materials and pressure fluctuations in a fluidized bed in its second aspect. Please refer to [link to relevant documentation]. Figure 4 A method for using a laser monitoring device for the distribution of tobacco materials and pressure fluctuations in a fluidized bed includes the following steps:

[0069] S1. When conveying tobacco in the conveying zone 4 of the fluidized bed, the controller first controls the laser emitter 1 and laser receiver 2 located on both sides of the conveying zone 4 in the fluidized bed to be in the start state, and then the controller 9 controls the laser emitter 1 on one side of the conveying zone 4 in the fluidized bed to emit laser to the laser receiver 2 on the other side of the conveying zone 4 in the fluidized bed.

[0070] S2. During the process of the laser emitted by the laser emitter 1 being emitted to the laser receiver 2, the laser emitted by the laser emitter 1 first passes through the tobacco being transported in the fluidized bed conveying zone 4, and is then received by the laser receiver 2 on the other side of the fluidized bed conveying zone 4.

[0071] S3. After the laser receiver 2 receives the laser signal, the control controller 9 first transmits the laser signal received by the laser receiver 2 to the A / D analog-to-digital converter 6 to convert the received laser signal into a digital signal. Then, the converted digital signal is transmitted to the tobacco material morphology distribution / pressure fluctuation processor 5. The tobacco material morphology distribution / pressure fluctuation processor 5 analyzes and processes the converted digital signal to analyze the real-time numerical information of pressure fluctuation in the fluidized bed and the real-time distribution morphology information of tobacco material.

[0072] S4. After the tobacco material morphology distribution / pressure fluctuation processor 5 analyzes the real-time numerical information of pressure fluctuation in the fluidized bed and the real-time distribution morphology information of tobacco material, the tobacco material morphology distribution / pressure fluctuation processor 5 sends the real-time numerical information of pressure fluctuation in the fluidized bed and the real-time distribution morphology information of tobacco material to the remote monitoring computer 10 for remote monitoring and analysis. On the other hand, it sends the real-time numerical information of pressure fluctuation in the fluidized bed and the real-time distribution morphology information of tobacco material to the upper monitoring device 7 for real-time display and comparison with the preset pressure range and the preset range of tobacco material distribution morphology in the upper monitoring device 7.

[0073] S5. If the real-time value of the air pressure fluctuation in the fluidized bed is not within the preset air pressure range of the upper monitoring device 7 or the real-time distribution pattern of the tobacco material in the fluidized bed is not within the preset range of the distribution pattern of the tobacco material in the upper monitoring device 7, the upper monitoring device 7 will trigger the alarm to provide a warning and send the corresponding abnormal information to the industrial control computer 18 that controls the tobacco conveying on the fluidized bed.

[0074] S6. After receiving the corresponding abnormal information, the industrial control computer 18 controls the motor in the feeding component that feeds the tobacco material into the fluidized bed, the solenoid valve on the air pipe for inputting air into the fluidized bed, and another solenoid valve on another air pipe for inputting air into the fluidized bed to adjust in a timely manner so that the air pressure in the fluidized bed and the distribution pattern of the tobacco material in the conveying zone 4 of the fluidized bed are within the normal range.

[0075] Although the invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter arrangement within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A laser monitoring device for the distribution of tobacco materials and pressure fluctuations in a fluidized bed, characterized in that: include Laser emitter (1); The laser receiver (2), laser emitter (1) and laser receiver (2) are respectively set on the two inner side walls of the conveying area (4) in the fluidized bed (3). The laser emitter (1) and laser receiver (2) are symmetrically arranged. The conveying area (4) between the laser emitter (1) and laser receiver (2) is the conveying area for tobacco materials. The tobacco material morphology distribution / pressure fluctuation processor (5) and the laser receiver (2) are electrically connected to the tobacco material morphology distribution / pressure fluctuation processor (5) through the A / D analog-to-digital converter (6); The upper-level monitor (7) is electrically connected to the tobacco material distribution / pressure fluctuation identifier (5); Alarm (8) is electrically connected to the upper-level monitor (7).

2. The laser monitoring device for the distribution of tobacco materials and pressure fluctuations in a fluidized bed according to claim 1, characterized in that: It also includes a remote monitoring computer (10), which is electrically connected to the tobacco material morphology distribution / pressure fluctuation processor (5) via a first data transmission line (11).

3. The laser monitoring device for the distribution of tobacco materials and pressure fluctuations in a fluidized bed according to claim 1, characterized in that: It also includes an industrial control computer (18), which is electrically connected to the upper monitoring device (7) via the second data transmission line (12). The industrial control computer (18) is electrically connected to the motor in the feeding component that feeds the tobacco material into the fluidized bed, the solenoid valve on the air pipe that feeds the air into the fluidized bed, and another solenoid valve on another air pipe that feeds the air out of the fluidized bed via the third data transmission line (13).

4. The laser monitoring device for the distribution of tobacco materials and pressure fluctuations in a fluidized bed according to claim 1, characterized in that: The laser receiver (2) is electrically connected to the A / D converter (6) via the fourth data transmission line (14).

5. The laser monitoring device for the distribution of tobacco materials and pressure fluctuations in a fluidized bed according to claim 1, characterized in that: The A / D converter (6) is electrically connected to the tobacco material morphology distribution / pressure fluctuation processor (5) via the fifth data transmission line (15).

6. The laser monitoring device for the distribution of tobacco materials and pressure fluctuations in a fluidized bed according to claim 1, characterized in that: The tobacco material morphology distribution / pressure fluctuation processor (5) is electrically connected to the host monitor (7) via the sixth data transmission line (16).

7. The laser monitoring device for the distribution of tobacco materials and pressure fluctuations in a fluidized bed according to claim 1, characterized in that: The upper-level monitor (7) is electrically connected to the alarm (8) via the seventh data transmission line (19).

8. The laser monitoring device for the distribution of tobacco materials and pressure fluctuations in a fluidized bed according to claim 1, characterized in that: The laser transmitter (1) and the laser receiver (2) are electrically connected to the controller (9) via the third data transmission line (13).

9. The method of using the laser monitoring device for the distribution of tobacco materials and pressure fluctuations in a fluidized bed as described in claim 1, comprising the following steps: When tobacco is being transported in the conveying zone (4) of the fluidized bed, the controller first controls the laser emitter (1) and laser receiver (2) located on both sides of the conveying zone (4) in the fluidized bed to be in the start-up state. Then, the controller (9) controls the laser emitter (1) on one side of the conveying zone (4) in the fluidized bed to emit laser to the laser receiver (2) on the other side of the conveying zone (4) in the fluidized bed. During the process of the laser emitted by the laser emitter (1) being emitted to the laser receiver (2), the laser emitted by the laser emitter (1) first passes through the tobacco being transported in the fluidized bed conveying zone (4), and is then received by the laser receiver (2) on the other side of the fluidized bed conveying zone (4). After the laser receiver (2) receives the laser signal, the laser signal received by the laser receiver (2) is first transmitted to the A / D analog-to-digital converter (6) through the control controller (9) to convert the received laser signal into a digital signal. Then, the converted digital signal is transmitted to the tobacco material morphology distribution / pressure fluctuation processor (5). The tobacco material morphology distribution / pressure fluctuation processor (5) analyzes and processes the converted digital signal to analyze the real-time numerical information of pressure fluctuation in the fluidized bed and the real-time distribution morphology information of tobacco material. After the tobacco material morphology distribution / pressure fluctuation processor (5) analyzes the real-time numerical information of pressure fluctuation in the fluidized bed and the real-time distribution morphology information of tobacco material, the tobacco material morphology distribution / pressure fluctuation processor (5) sends the real-time numerical information of pressure fluctuation in the fluidized bed and the real-time distribution morphology information of tobacco material to the remote monitoring computer (10) for remote monitoring and analysis. On the other hand, it sends the real-time numerical information of pressure fluctuation in the fluidized bed and the real-time distribution morphology information of tobacco material to the upper monitoring device (7) for real-time display and comparison with the preset pressure range and the preset range of tobacco material distribution morphology in the upper monitoring device (7). If the real-time value of the air pressure fluctuation in the fluidized bed is not within the preset air pressure range of the upper monitoring device (7) or the real-time distribution pattern of the tobacco material in the fluidized bed is not within the preset range of the distribution pattern of the tobacco material in the upper monitoring device (7), the upper monitoring device (7) will trigger the alarm to warn and send the corresponding abnormal information to the industrial control computer (18) that controls the tobacco conveying on the fluidized bed. After receiving the corresponding abnormal information, the industrial control computer (18) controls the motor in the feeding component that feeds the tobacco material into the fluidized bed, the solenoid valve on the air pipe for inputting air into the fluidized bed, and another solenoid valve on another air pipe for inputting air into the fluidized bed to make corresponding adjustments so that the air pressure in the fluidized bed and the distribution pattern of the tobacco material in the conveying zone (4) of the fluidized bed are within the normal range.

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