Control method and system for stem sign removal of winnower air door-baffle collaborative control

Abstract

The application discloses a kind of baffle of air door-baffle collaborative control's stem signature rejection control method and system, the method includes: determining the target stable interval of air door opening degree;Threshold condition for triggering baffle height adjustment is set;Real-time monitoring air door opening degree, according to the size relationship between current air door opening degree value and the threshold condition, the height of baffle is adjusted, to make the opening degree of air door return and stabilize in the target stable interval.A kind of baffle of air door-baffle collaborative control's stem signature rejection control method and system of the application, by introducing baffle height as a new control variable, with air door opening degree collaborative adjustment, can effectively expand the stable control range of system, improve the adaptability to different raw materials and flow fluctuation, ensure that air selection machine is always worked in efficient, stable state, solve the problem that traditional single air door regulating system is poor in stability when responding to incoming material fluctuation, prone to failure, improve stem signature rejection efficiency and production stability.

Description

Technical Field

[0001] This invention relates to the field of automatic control technology for tobacco processing production lines, and more specifically, to a stem and twig removal control method and system for coordinated control of the air damper and baffle of an air classifier. Background Technology

[0002] In the tobacco processing industry, the air classifier is the core equipment for separating tobacco shreds from impurities such as stems and wet clumps. Its working principle is as follows: Tobacco material is thrown into the air classifier chamber via a high-speed conveyor belt. The upward airflow inside the chamber causes the tobacco shreds and stems to form different trajectories due to their different physical properties—the tobacco shreds, due to their high air resistance and slow descent, form a long parabola and can pass over the baffle to enter the discharge belt; the stems, due to their greater weight and faster descent, form a short parabola and are blocked by the baffle, falling into the impurity removal port, thus achieving impurity removal.

[0003] However, existing air separation control systems only control airflow by adjusting the damper opening, which has significant limitations in actual production: the stem content of different tobacco brands varies greatly, and the inlet tobacco flow rate fluctuates frequently during production, easily causing the damper opening to frequently reach its fully open or fully closed limit, leading to decreased control system stability, fluctuations in rejection efficiency, and even automatic control failure. Practice shows that the control stability and stem rejection efficiency of the air separation system are optimal when the damper opening fluctuates slowly within the range of 20% to 80%. Therefore, it is urgent to introduce new control variables to expand the system's stable control range.

[0004] Therefore, there is an urgent need for a stem removal control method and system based on the coordinated control of the damper and baffle in an air separator. Summary of the Invention

[0005] The purpose of this invention is to provide a stem and stalk removal control method and system for air classifier damper-baffle coordinated control, in order to solve the problems in the prior art. By using dual-variable coordinated adjustment, the system's adaptability to fluctuations in incoming materials and changes in grade is improved, ensuring that the air classifier always works in a highly efficient and stable state.

[0006] This invention provides a stem removal control method based on the coordinated control of the damper and baffle in an air separator, comprising:

[0007] Determine the target stable range for the damper opening;

[0008] Set the threshold conditions for triggering baffle height adjustment;

[0009] The damper opening is monitored in real time. Based on the relationship between the current damper opening value and the threshold condition, the height of the baffle is adjusted so that the damper opening returns to and stabilizes within the target stable range.

[0010] The stem removal control method of the air separator damper-baffle coordinated control described above is preferably wherein the target stable interval is [L,H], where L represents the lower limit of the stable interval and H represents the upper limit of the stable interval.

[0011] The threshold conditions include a first threshold T_high and a second threshold T_low, wherein the first threshold T_high is greater than the second threshold T_low, T_high = H + Δ1, where Δ1 is a first preset empirical value, and T_low = L - Δ2, where Δ2 is a second preset empirical value, and both Δ1 and Δ2 are positive values.

[0012] The stem removal control method for a damper-baffle coordinated control of an air separator, as described above, preferably includes the following: real-time monitoring of the damper opening, and adjusting the baffle height based on the relationship between the current damper opening value and the threshold condition, so that the damper opening returns to and stabilizes within the target stable range.

[0013] The current damper opening value P is monitored in real time during the operation of the air separator, and the current damper opening value P is compared with the first threshold T_high and the second threshold T_low.

[0014] If the current damper opening value P > the first threshold T_high, then reduce the baffle height so that the current damper opening value P falls back to the stable range [L,H].

[0015] If the current damper opening value P < the second threshold T_low, then increase the height of the baffle so that the current damper opening value P returns to the stable range [L,H].

[0016] If the lower limit of the stable interval L ≤ the current damper opening value P ≤ the upper limit of the stable interval H, then the baffle height remains unchanged.

[0017] In the above-described method for stem removal control of a wind separator with coordinated damper-baffle control, preferably, the height of the baffle is precisely adjusted by a servo motor drive.

[0018] The stem removal control method of the air separator damper-baffle coordinated control described above is preferably wherein the upper edge of the baffle is an arc-shaped structure that bends toward the outlet direction.

[0019] The stem and twig removal control method for the air classifier damper-baffle coordinated control described above, preferably, further includes:

[0020] Material head and tail control strategy: When the inlet material flow rate is detected to be lower than the preset flow rate threshold, the baffle height is adjusted to the preset maximum position.

[0021] The present invention also provides a stem removal control system for a wind separator with coordinated control of damper and baffle using the above method, comprising:

[0022] The damper opening adjustment module is used to adjust the airflow of the air separator;

[0023] The baffle height adjustment module is used to adjust the vertical position of the baffle.

[0024] The parameter acquisition module is used to collect the current damper opening value in real time;

[0025] The intelligent control module is connected to the damper opening adjustment module, the baffle height adjustment module, and the parameter acquisition module, respectively. The intelligent control module is used for:

[0026] Determine the target stable range of damper opening and the corresponding threshold conditions;

[0027] Based on the current damper opening value collected by the parameter acquisition module, and according to the relationship between the current damper opening value and the threshold condition, a control command is sent to the baffle height adjustment module to adjust the height of the baffle so that the damper opening returns to and stabilizes within the target stable range.

[0028] In the aforementioned air separator damper-baffle coordinated control system for stem and stalk removal, preferably, the parameter acquisition module is also used to acquire the inlet material flow rate value in real time.

[0029] The intelligent control module is also used to: control the baffle height adjustment module to adjust the height of the baffle to the highest position during the material head and tail stages, based on the inlet material flow rate collected by the parameter acquisition module.

[0030] As described above, in a stalk removal control system for a wind separator with coordinated control of the damper and baffle, preferably, the baffle height adjustment module includes a servo motor and a baffle that is drivenly connected to the servo motor; the upper edge of the baffle is an arc-shaped structure that curves towards the outlet direction.

[0031] In the above-described air separator damper-baffle coordinated control system for stem removal, preferably, the intelligent control module is a programmable logic controller or an industrial control computer.

[0032] This invention provides a method and system for stem removal control using a damper-baffle coordinated control of an air classifier. By introducing baffle height as a new control variable, which is adjusted in conjunction with damper opening, the system's stable control range can be effectively expanded, its adaptability to different raw materials and flow fluctuations can be improved, and the air classifier can be ensured to always operate in a highly efficient and stable state. By determining the target stable range of damper opening and setting a baffle height adjustment threshold, damper opening and baffle height are used as coordinated control variables. The damper opening is monitored in real time, and the baffle height is dynamically adjusted according to its relationship with the threshold, so that the damper opening is stabilized within the target range, thus reducing the impact of single damper adjustment. The system has been expanded to a dual-variable collaborative control system of damper and baffle, which greatly improves the system's adaptability to fluctuations in incoming materials and changes in grade, and avoids control failures caused by sudden changes in operating conditions. When the damper opening exceeds the ideal range, the baffle height is adjusted to pull it back to the stable range, enabling the air separator to maintain a highly efficient and stable rejection effect over a wider range of operating conditions. The baffle height is driven by a servo motor, which has high adjustment precision and fast response speed, and can quickly respond to abnormal changes in damper opening, accurately controlling the stem rejection rate and tobacco recovery rate. The special control strategy for the beginning and end stages of material processing effectively improves the product quality in the thin material stage and reduces the generation of defective products. Attached Figure Description

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described below with reference to the accompanying drawings, wherein:

[0034] Figure 1 A flowchart illustrating an embodiment of the stem removal control method for coordinated control of the damper and baffle in an air separator provided by the present invention;

[0035] Figure 2 A logic diagram of an embodiment of a stem removal control method for coordinated control of damper and baffle in an air separator provided by the present invention;

[0036] Figure 3 This is a schematic diagram of an embodiment of a stem removal control system for a wind separator with coordinated control of the damper and baffle, provided by the present invention.

[0037] Explanation of reference numerals in the attached diagram: 1-Intelligent control module, 2-Parameter acquisition module, 3-Damper opening adjustment module, 4-Baffle height adjustment module, 5-Air classifier, 6-Electronic belt scale, 7-Damper, 8-Baffle, 9-High-speed throwing belt. Detailed Implementation

[0038] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present disclosure or its application or use. The present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that the present disclosure will be thorough and complete, and will fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless specifically stated otherwise, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0039] The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Terms such as “including” or “contains” mean that the element preceding the term encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as “above” and “below” are used only to indicate relative positional relationships; when the absolute position of the described object changes, this relative positional relationship may also change accordingly.

[0040] In this disclosure, when a specific component is described as being located between a first component and a second component, an intermediary component may or may not be present between the specific component and the first or second component. When a specific component is described as connecting to other components, the specific component may be directly connected to the other components without having an intermediary component, or it may not be directly connected to the other components but may have an intermediary component.

[0041] All terms used in this disclosure (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as a dictionary, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0042] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0043] The present invention relates to a stem and twig removal control method and system for coordinated control of air damper and baffle in an air classifier, which is applied to the air classifier equipment in the cigarette manufacturing line.

[0044] like Figure 1 and Figure 2 As shown in the figure, the stem removal control method of the air classifier damper-baffle coordinated control provided in this embodiment includes the following steps in actual execution:

[0045] Step S1: Determine the target stable range of damper opening.

[0046] The target stability interval is [L, H], where L represents the lower limit of the stability interval and H represents the upper limit of the stability interval. In specific implementation, the target stability interval [L, H] of the damper opening that meets the process index of stem content in the exported tobacco is determined through process testing or statistical analysis of historical production data. In one embodiment of the present invention, it is determined through process experiments that when the damper opening fluctuates within the range of 35% to 65%, the stem content index (average value and standard deviation) of the exported tobacco meets the process requirements. Therefore, the target stability interval [L, H] is set as [35%, 65%].

[0047] Step S2: Set the threshold conditions for triggering baffle height adjustment.

[0048] The threshold conditions include a first threshold T_high and a second threshold T_low, wherein the first threshold T_high is greater than the second threshold T_low. T_high = H + Δ1, where Δ1 is a first preset empirical value, and T_low = L - Δ2, where Δ2 is a second preset empirical value. Both Δ1 and Δ2 are positive values, determined experimentally to ensure that after the damper opening exceeds the threshold, it returns to the target stable range within a preset time. In one embodiment of the invention, the first preset empirical value Δ1 is set to 5%, and the second preset empirical value Δ2 is set to 5%. The calculated first threshold T_high = 65% + 5% = 70%, and the second threshold T_low = 35% - 5% = 30%.

[0049] Step S3: Monitor the damper opening in real time, and adjust the height of the baffle according to the relationship between the current damper opening value and the threshold condition, so that the damper opening returns to and stabilizes within the target stable range.

[0050] The height of the baffle is precisely adjusted by a servo motor, and the upper edge of the baffle has an arc-shaped structure that curves towards the outlet to prevent tobacco from getting stuck.

[0051] In step S3, the current damper opening value P during the operation of the air separator is monitored in real time. After comparing it with a threshold condition, a corresponding operation is performed to coordinately adjust the damper opening and baffle height in real time, so that the damper opening returns to and stabilizes within the target stable range. In one embodiment of the stem removal control method for damper-baffle coordinated control of an air separator according to the present invention, step S3 may specifically include:

[0052] Step S31: Monitor the current damper opening value P during the operation of the air separator in real time, and compare the current damper opening value P with the first threshold T_high and the second threshold T_low.

[0053] Step S32: If the current damper opening value P > the first threshold T_high, then reduce the baffle height so that the current damper opening value P falls back to the stable range [L,H].

[0054] If the current damper opening value P > the first threshold T_high, it means that the damper opening is too large. In this case, reducing the height of the baffle can increase the amount of sluice blockage, reduce the required wind force, and thus make the damper opening fall back to the stable range.

[0055] Step S33: If the current damper opening value P < the second threshold T_low, then increase the height of the baffle so that the current damper opening value P returns to the stable range [L,H].

[0056] If the current damper opening value P < the second threshold T_low, it means that the damper opening is too small. In this case, raising the height of the baffle can reduce the amount of sluice blockage and increase the required wind force so that the damper opening can return to the stable range.

[0057] Step S34: If the lower limit of the stable interval L ≤ the current damper opening value P ≤ the upper limit of the stable interval H, then keep the baffle height unchanged and maintain the stable operation of the system.

[0058] Furthermore, in one embodiment of the stem removal control method of the wind separator damper-baffle coordinated control of the present invention, step S3 further includes:

[0059] Step S35, Material Head and Tail Control Strategy: When the inlet material flow rate is detected to be lower than the preset flow rate threshold, the baffle height is adjusted to the preset maximum position.

[0060] In one embodiment of the present invention, when the inlet material flow rate is detected to be lower than the preset flow rate threshold, it is determined that the material has entered the head or tail stage. At this time, the height of the baffle is automatically adjusted to the preset highest position to maximize the removal rate of stems and wet clumps of impurities and prevent stems from being mixed into qualified tobacco shreds in thin material.

[0061] Correspondingly, such as Figure 3 As shown, the present invention also provides a stem removal control system for a wind separator damper-baffle coordinated control using the above method, comprising:

[0062] The damper opening adjustment module 3 is used to adjust the airflow of the air separator;

[0063] The baffle height adjustment module 4 is used to adjust the vertical position of the baffle;

[0064] Parameter acquisition module 2 is used to acquire the current damper opening value in real time;

[0065] The intelligent control module 1 is connected to the damper opening adjustment module 3, the baffle height adjustment module 4, and the parameter acquisition module 2, respectively. The intelligent control module 1 is used for:

[0066] Determine the target stable range of damper opening and the corresponding threshold conditions;

[0067] Based on the current damper opening value collected by the parameter acquisition module 2, and according to the relationship between the current damper opening value and the threshold condition, a control command is sent to the baffle height adjustment module 4 to adjust the height of the baffle 8 so that the opening of the damper 7 returns to and stabilizes within the target stable range.

[0068] Among them, the air separator 5 is the main body of the equipment, which forms a separation space between tobacco and stems. The high-speed throwing belt 9 throws the material into the box, and the airflow introduced by the air door 7 causes the material to form different movement trajectories. The baffle 8 completes the interception of stems, and finally realizes the separation of tobacco and impurities.

[0069] The intelligent control module 1, as the core control unit of the system, adopts a programmable logic controller (PLC) or an industrial control computer and is installed in the control cabinet of the air separator 5.

[0070] Furthermore, the damper opening adjustment module 3 is installed at the air inlet of the air separator 5 and is connected to the damper 7 for transmission. According to the instructions of the intelligent control module 1, the opening and closing angle of the damper 7 is adjusted to control the wind force in the air separator box and achieve precise control of the airflow separating tobacco and stems.

[0071] Furthermore, the baffle height adjustment module 4 is installed inside the housing of the air separator 5 in the area where the tobacco shreds and stems are separated. Specifically, the baffle height adjustment module 4 includes a servo motor and a baffle 8 connected to the servo motor. The baffle height adjustment module 4 also includes a screw lifting mechanism and a baffle mounting bracket. The servo motor drives the baffle mounting bracket and the baffle 8 to achieve precise vertical lifting and lowering through the screw lifting mechanism. Furthermore, the upper edge of the baffle 8 has an arc-shaped structure that curves towards the outlet direction, which can prevent tobacco shreds from sticking to the wall. In this invention, the baffle height adjustment module 4 precisely adjusts the height of the baffle 8 according to the instructions of the intelligent control module 1, and coordinates with the opening degree of the damper 7 to achieve coordinated control.

[0072] Furthermore, the parameter acquisition module 2 is also used to acquire the inlet material flow rate value in real time.

[0073] The intelligent control module 1 is also used to: control the baffle height adjustment module 4 to adjust the height of the baffle to the highest position during the material head and tail stages, based on the inlet material flow rate collected by the parameter acquisition module 2.

[0074] In one embodiment of the present invention, the parameter acquisition module 2 includes a damper opening sensor and an electronic belt scale 6. The damper opening sensor is mounted on the actuator of the damper 7 and is used to acquire the opening value of the damper in real time. The electronic belt scale 6 is installed on the front conveying path of the high-speed material throwing belt 9 and is used to acquire the flow rate data of the inlet material in real time. Furthermore, the parameter acquisition module 2 transmits all acquired data to the intelligent control module 1 for analysis and processing.

[0075] In one embodiment of the present invention, after the air separator is started, the parameter acquisition module 2 collects the damper opening and material flow data in real time:

[0076] When the inlet material's slag content suddenly increases and the damper opening rises to 72% (exceeding T_high), the intelligent control module 1 sends a downward damper control command to the damper height adjustment module 4. In response to the downward damper control command, the damper height adjustment module 4 moves the damper 8 downward by 5mm. After the damper is lowered, more slag is intercepted. At this time, the system's required airflow decreases slightly, and the damper opening P begins to fall back. After several control cycles, the damper opening gradually falls back to 55% and stabilizes within the target range.

[0077] When the incoming material flow rate suddenly decreases and the damper opening drops to 28% (below T_low), the intelligent control module 1 sends an upward damper control command to the damper height adjustment module 4. In response to the upward damper command, the damper height adjustment module 4 moves the damper 8 upward by 5mm. After the damper is raised, the amount of tobacco sticks intercepted is reduced, and more tobacco can pass through smoothly. The wind force required by the system increases accordingly, and the damper opening P begins to rise. Finally, the damper opening rises to 45% and stabilizes in the target range.

[0078] When the electronic belt scale 6 detects that the material flow rate is less than 30% of the normal flow rate, it determines that the material tail stage has begun. The intelligent control module 1 sends a maximum baffle position control command to the baffle height adjustment module 4. In response to the maximum baffle position control command, the baffle height adjustment module 4 adjusts the baffle 8 to the highest position (e.g., 15mm higher than the initial position) to ensure that any stems or wet clumps can be effectively intercepted during the material thinning stage, preventing them from mixing into the qualified tobacco.

[0079] This invention provides a method and system for stem removal control using a damper-baffle coordinated control system in an air classifier. By introducing baffle height as a new control variable and coordinating it with damper opening, the system's stable control range can be effectively expanded, its adaptability to different raw materials and flow fluctuations can be improved, and the air classifier can be ensured to always operate in a highly efficient and stable state. By determining the target stable range of damper opening and setting a baffle height adjustment threshold, damper opening and baffle height are used as coordinated control variables. The damper opening is monitored in real time, and the baffle height is dynamically adjusted according to its relationship with the threshold, so that the damper opening is stabilized within the target range, thus controlling the single damper... The adjustment has been expanded to a dual-variable coordinated control of the damper and baffle, which greatly improves the system's adaptability to fluctuations in incoming materials and changes in grade, avoiding control failures caused by sudden changes in operating conditions. When the damper opening exceeds the ideal range, the height of the baffle is adjusted to pull it back to the stable range, enabling the air separator to maintain a highly efficient and stable rejection effect over a wider range of operating conditions. The baffle height is driven by a servo motor, which has high adjustment precision and fast response speed, and can quickly respond to abnormal changes in damper opening, accurately controlling the stem rejection rate and tobacco recovery rate. The special control strategy for the beginning and end stages of material processing effectively improves the product quality in the thin material stage and reduces the generation of defective products.

[0080] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0081] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. The scope of this disclosure is defined by the appended claims.

Claims

1. A method for stem and twig removal control based on coordinated control of damper and baffle in an air separator, characterized in that, include: Determine the target stable range for the damper opening; Set the threshold conditions for triggering baffle height adjustment; The damper opening is monitored in real time. Based on the relationship between the current damper opening value and the threshold condition, the height of the baffle is adjusted so that the damper opening returns to and stabilizes within the target stable range.

2. The stem removal control method of the air separator damper-baffle coordinated control according to claim 1, characterized in that, The target stable interval is [L, H], where L represents the lower limit of the stable interval and H represents the upper limit of the stable interval. The threshold conditions include a first threshold T_high and a second threshold T_low, wherein the first threshold T_high is greater than the second threshold T_low, T_high = H + Δ1, where Δ1 is a first preset empirical value, and T_low = L - Δ2, where Δ2 is a second preset empirical value, and both Δ1 and Δ2 are positive values.

3. The stem removal control method of the air separator damper-baffle coordinated control according to claim 2, characterized in that, The real-time monitoring of the damper opening, based on the relationship between the current damper opening value and the threshold condition, adjusts the height of the baffle to ensure that the damper opening returns to and stabilizes within the target stable range, including: The current damper opening value P is monitored in real time during the operation of the air separator, and the current damper opening value P is compared with the first threshold T_high and the second threshold T_low. If the current damper opening value P > the first threshold T_high, then reduce the baffle height so that the current damper opening value P falls back to the stable range [L,H]. If the current damper opening value P < the second threshold T_low, then increase the height of the baffle so that the current damper opening value P returns to the stable range [L,H]. If the lower limit of the stable interval L ≤ the current damper opening value P ≤ the upper limit of the stable interval H, then the baffle height remains unchanged.

4. The stem removal control method of the air separator damper-baffle coordinated control according to claim 1, characterized in that, The height of the baffle is precisely adjusted by a servo motor.

5. The stem removal control method of the air separator damper-baffle coordinated control according to claim 1, characterized in that, The upper edge of the baffle is an arc-shaped structure that curves towards the outlet.

6. The stem removal control method of the air separator damper-baffle coordinated control according to claim 1, characterized in that, The stem removal control method of the air separator damper-baffle coordinated control also includes: Material head and tail control strategy: When the inlet material flow rate is detected to be lower than the preset flow rate threshold, the baffle height is adjusted to the preset maximum position.

7. A stem removal control system for a wind separator with damper-baffle coordinated control using the method described in any one of claims 1-6, characterized in that, include: The damper opening adjustment module is used to adjust the airflow of the air separator; The baffle height adjustment module is used to adjust the vertical position of the baffle. The parameter acquisition module is used to collect the current damper opening value in real time; The intelligent control module is connected to the damper opening adjustment module, the baffle height adjustment module, and the parameter acquisition module, respectively. The intelligent control module is used for: Determine the target stable range of damper opening and the corresponding threshold conditions; Based on the current damper opening value collected by the parameter acquisition module, and according to the relationship between the current damper opening value and the threshold condition, a control command is sent to the baffle height adjustment module to adjust the height of the baffle so that the damper opening returns to and stabilizes within the target stable range.

8. The stem removal control system for a wind separator with coordinated control of the damper and baffle as described in claim 7, characterized in that, The parameter acquisition module is also used to collect the inlet material flow rate value in real time. The intelligent control module is also used to: control the baffle height adjustment module to adjust the height of the baffle to the highest position during the material head and tail stages, based on the inlet material flow rate collected by the parameter acquisition module.

9. A stem removal control system for a wind separator with coordinated control of damper and baffle as described in claim 7, characterized in that, The baffle height adjustment module includes a servo motor and a baffle that is driven by the servo motor; the upper edge of the baffle is an arc-shaped structure that bends toward the outlet direction.

10. A stem removal control system for a wind separator with coordinated control of damper and baffle as described in claim 7, characterized in that, The intelligent control module is a programmable logic controller or an industrial control computer.

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