A cyclone dust collector with self-adaptive adjustment of blade angle and a dust removal method

Abstract

The application provides a cyclone dust collector with self-adaptive adjustment of blade angle and a dust removal method, which comprises a cyclone dust collector body and a control system; the control system is used for monitoring the data change of dust in airflow entering the cyclone dust collector body in real time, and the angle of the cyclone blade of the cyclone dust collector body is adjusted according to the monitoring data to complete dynamic adjustment of the ventilation volume; the application adjusts the angle of the cyclone blade to realize dynamic adjustment of the ventilation volume; the airflow entering the cyclone dust collector body moves along the axis direction of the inner wall of the shell in a spiral track closely to the inner wall of the shell through the cyclone blade, and enters the dust collecting cylinder, so that the dust is collected and treated; the arc-shaped guide plate arranged outside the extension pipe is used for moving the dust to the inner wall position of the dust collecting cylinder under the action of centrifugal force, and discharging the dust from the discharge port of the dust collecting cylinder, thereby improving the dust separation effect.

Description

Technical Field

[0001] This invention relates to the field of cyclone dust collector technology, specifically to a cyclone dust collector and dust removal method with adaptively adjustable blade angle. Background Technology

[0002] Cyclone dust collectors are a type of dust removal device. The dust removal mechanism involves rotating the dust-laden airflow, using centrifugal force to separate dust particles from the airflow and collect them on the device wall, and then using gravity to make the dust particles fall into the ash hopper.

[0003] In existing technologies, the performance of DC cyclone dust collectors is greatly affected by blade parameters. The blades inside traditional DC cyclone dust collectors are usually welded inside the shell, and the blades cannot be dynamically adjusted in real time according to the specific parameters of the dust-laden airflow, resulting in low dust removal efficiency. How to improve the dust removal efficiency of DC cyclone dust collectors is an urgent problem to be solved in this industry.

[0004] Publication No. CN104741253B discloses a DC guide vane cyclone dust collector, comprising an air inlet, an outer cylinder, guide vanes, a guide body, an air outlet, and a dust removal device. The guide body is fixed inside the outer cylinder and is coaxial with it. Specifically, the guide vanes are located near the air inlet, and the guide vanes, outer cylinder, and guide body are connected as a single unit; the outer cylinder, guide body, and air outlet share the same axis, with the guide vanes in perpendicular contact to the axis, forming an annular region between the outer surface of the guide body and the interior of the outer cylinder. Dust-laden airflow enters the outer cylinder through the air inlet, rotates within the annular region under the action of the guide vanes, and flows along the axial direction. Particulate matter in the dust-laden airflow enters the dust removal device under centrifugal force, and the dust-removed airflow is discharged through the air outlet. In this DC guide vane cyclone dust collector, the guide vanes are rigidly connected to the guide body, and the annular flow field formed between the outer surface of the guide body and the interior of the outer cylinder has a constant size. This prevents dynamic adjustment of the ventilation volume based on the dust content in the airflow, resulting in low dust removal efficiency and poor performance. Summary of the Invention

[0005] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a cyclone dust collector and dust removal method with adaptively adjustable blade angle, thereby achieving dynamic adjustment of the airflow velocity inside the cyclone dust collector and improving the dust removal efficiency of the DC cyclone dust collector.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cyclone dust collector with adaptively adjustable blade angle includes a cyclone dust collector body and a control system; the cyclone dust collector body includes a shell and blade units; the shell is provided with an air inlet and an air outlet, and the blade units are disposed inside the shell;

[0008] The blade unit includes swirl blades, a fixed assembly, a rotating assembly, and a servo motor;

[0009] The fixing assembly includes a terminal, a support rod, a guide cone, a fixing inner ring, a fixing outer ring, and a first connecting rod. The axis of the guide cone coincides with the axis of the housing, and the tip of the guide cone faces the air inlet. The support rod is fixed inside the guide cone, with one end of the support rod near the air inlet passing through the tip of the guide cone and extending outward. The terminal is located outside the guide cone and is fixedly connected to the support rod. One end of the first connecting rod is fixed to the support rod near the air outlet, and the other end passes through the guide cone and extends outward. The axis of the support rod is perpendicular to the axis of the first connecting rod. The fixing inner ring is fitted outside the guide cone, and the fixing outer ring is fitted outside the fixing inner ring. The fixing outer ring and the fixing inner ring are fixedly connected to the first connecting rod. The upper end face of the fixing outer ring is provided with multiple first oblique holes, and the lower end face of the terminal is provided with multiple second oblique holes corresponding to the first oblique holes.

[0010] The rotating assembly includes a rotating ring, a second connecting rod, a ring sleeve, and a first gear; the ring sleeve and the first gear are rotatably fitted onto the support rod; the lower end face of the first gear is fixedly connected to the upper end face of the ring sleeve; one end of the second connecting rod is fixed to the outside of the ring sleeve, and the other end passes through the guide cone and extends outward; the rotating ring is fitted onto the outside of the guide cone, and the lower end face of the rotating ring is in frictional contact with the upper end face of the fixed inner ring; the upper end face of the fixed outer ring is flush with the upper end face of the rotating ring; the upper end face of the rotating ring is provided with multiple guide grooves; the number of the first oblique hole, the second oblique hole, and the guide grooves are the same, and they are distributed in a circular array centered on the axis of the guide cone;

[0011] A shaft is fixedly installed inside the swirl blade; the upper end of the shaft is rotatably installed in the second inclined hole, and the lower end is rotatably installed in the first inclined hole; a guide ball is fixedly installed on the lower end face of the swirl blade, and the guide ball is slidably installed in the guide groove.

[0012] The servo motor is fixed inside the guide cone, and a second gear is connected to the output shaft of the servo motor. The second gear meshes with the first gear and rotates.

[0013] The control system includes: a dust-laden airflow monitoring unit, used to monitor in real time the dust mass concentration, particle size distribution, and air volume of the dust-laden airflow at the inlet and outlet of the cyclone dust collector; and a central processing unit, connected to the dust-laden airflow monitoring unit and the servo motor, used to process the data monitored by the dust-laden airflow monitoring unit, obtain the dust mass concentration, particle size distribution, and air volume, determine the appropriate cyclone blade angle setting and generate cyclone blade adjustment control data, and control the operation of the servo motor and adjust the cyclone blade angle setting according to the cyclone blade adjustment control data.

[0014] Preferably, the guide cone is provided with a strip-shaped guide hole, and one end of the second connecting rod passes through the strip-shaped guide hole from the inside of the guide cone and extends outward.

[0015] Preferably, the fixing assembly further includes an extension tube; one end of the extension tube is fixedly connected to the lower end face of the guide cone, and the other end extends toward the side away from the guide cone.

[0016] Preferably, the housing includes a tube, a dust collection cylinder, and a tailpipe; the outer ring of the fixing outer ring is fixedly connected to the inside of the tube, and the axes of the fixing outer ring, the tube, the dust collection cylinder, and the tailpipe coincide; the air inlet is located at the front end of the tube, the rear end of the tube is connected to one end of the dust collection cylinder, and the tailpipe is connected to the other end of the dust collection cylinder; the inner diameter of the dust collection cylinder is larger than the inner diameter of the tube, and the inner diameter of the tailpipe is smaller than the inner diameter of the tube; a discharge port is provided at the bottom side of the dust collection cylinder.

[0017] Preferably, an extension tube is fixedly installed inside the dust collection cylinder on the side near the tail pipe, and the extension tube is connected to the tail pipe; multiple arc-shaped diversion plates are provided on the outer wall of the extension tube, and the multiple arc-shaped diversion plates are arranged in a circular array with the axis of the extension tube as the center.

[0018] Preferably, the inner wall of the dust collection cylinder is coated with polytetrafluoroethylene.

[0019] Preferably, the dust-laden airflow monitoring unit includes a first monitoring group disposed at the air inlet and a second monitoring group disposed at the air outlet; the first monitoring group includes a multi-channel particle size distribution sensor I and an airflow sensor; the second monitoring group includes a multi-channel particle size distribution sensor II; the central processing unit includes a receiving unit, an information processing unit, a judgment unit, and a drive control unit; the receiving unit is electrically connected to the dust-laden airflow monitoring unit and transmits the monitoring data to the information processing unit; the information processing unit processes the dust mass concentration, particle size distribution, and airflow data and transmits the dust mass concentration, particle size distribution, and airflow data to the judgment unit; the judgment unit matches an appropriate swirl vane angle setting based on the dust mass concentration, particle size distribution, and airflow data in the dust-laden airflow at the air inlet and air outlet, and the drive control unit sends a command to the servo motor to control the motor's operation.

[0020] A dust removal method for a cyclone dust collector with adaptively adjustable blade angle includes the following steps:

[0021] S1: Dust-laden airflow enters the cyclone dust collector body. The first monitoring group monitors and obtains data on dust mass concentration, particle size distribution, and air volume at the air inlet. The central processing unit obtains the gear corresponding to the dust mass concentration and particle size distribution at the air inlet from the preset adjustment strategy.

[0022] S2: The central processing unit determines the relationship between the air intake air volume and the preset range limit. If the air intake air volume is less than the minimum limit of the preset range, it sends a signal to the drive control unit to increase the speed; if the air intake air volume is greater than the maximum limit of the preset range, it sends a signal to the drive control unit to decrease the speed; if the air intake air volume is within the preset range, the original speed remains unchanged.

[0023] S3: The dust mass concentration data at the air outlet is obtained by monitoring the second monitoring group. It is determined whether the dust mass concentration at the air outlet is greater than the maximum limit of the filtered dust mass concentration of the set setting. If so, a signal is sent to the drive control unit to adjust the setting; otherwise, the original setting remains unchanged.

[0024] S4: Through the adjustments in steps S1-S3, the dust mass concentration, particle size distribution, and air volume are matched with the set gear.

[0025] Preferably, when the first monitoring group detects that the flow rate and wind speed data of the dust-laden airflow are within the low airflow range set in the central processing unit, the drive control unit controls the swirl blades to increase the unfolding angle. After the dust-laden airflow moves in a spiral motion along the swirl blades, it moves to the inner wall of the pipe and moves along the axial direction of the pipe into the dust collection cylinder.

[0026] Preferably, when the first monitoring group detects that the flow rate and wind speed data of the dust-laden airflow are in the high air volume range set in the central processing unit, the drive control unit controls the swirl blades to reduce the unfolding angle. After the dust-laden airflow moves in a spiral motion along the swirl blades, it moves to the inner wall of the pipe and moves into the dust collection cylinder along the axial direction of the pipe.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] 1. In this invention, a first monitoring group is set at the air inlet and a second monitoring group is set at the air outlet to monitor the dust mass concentration, particle size distribution and air volume data of the dust-laden airflow at the air inlet and air outlet in real time. Based on the monitored data, the operation of the servo motor is controlled to dynamically adjust the angle of the cyclone blades, change the flow field inside the cyclone dust collector body, and realize the dynamic adjustment of ventilation volume.

[0029] 2. In this invention, the airflow entering the cyclone dust collector body is guided by the swirl blades to move along the inner wall of the shell in a spiral trajectory and along its axial direction, and then enters the dust collection cylinder, which facilitates the collection and centralized treatment of dust.

[0030] 3. In this invention, by using an arc-shaped guide plate on the outside of the extended pipe, the dust moves to the inner wall of the dust collection cylinder under the action of centrifugal force and is discharged from the discharge port of the dust collection cylinder, thereby improving the dust separation effect. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the cyclone dust collector body of the present invention;

[0032] Figure 2 for Figure 1 Cross-sectional view;

[0033] Figure 3 This is a schematic diagram showing the connection between the blade unit and the housing of the present invention;

[0034] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0035] Figure 5 This is a schematic diagram of the blade unit in this invention;

[0036] Figure 6 This is a structural breakdown diagram of the blade unit in this invention;

[0037] Figure 7 This is a schematic diagram of the swirl blade in the present invention;

[0038] Figure 8 This is a schematic diagram of the rotating component in this invention;

[0039] Figure 9 This is a structural schematic diagram of the fixed component from a downward viewing angle in this invention;

[0040] Figure 10 This is a top-view structural diagram of the fixed component in this invention;

[0041] Figure 11 This is a block diagram of the control system in this invention.

[0042] in:

[0043] 1. Cyclone dust collector body; 101. Tube body; 102. Dust collection cylinder; 103. Arc-shaped guide plate; 104. Air outlet; 105. Tail pipe; 106. Discharge port; 107. Extension pipe; 108. Air inlet; 2. Blade unit; 201. First gear; 202. Rotating ring; 203. Fixed inner ring; 204. Strip guide hole; 205. Second connecting rod; 206. Extension cylinder; 207. Second gear; 208. Servo motor; 209. Cyclone blade; 210. Support rod; 211. Terminal; 212. First connecting rod; 213. Fixed outer ring; 214. Guide cone; 215. Ring sleeve; 216. Guide ball; 217. Shaft; 218. Guide groove; 219. Second inclined hole; 220. First inclined hole. Detailed Implementation

[0044] The invention will be further described below with reference to the accompanying drawings. For ease of description, the terms "upper" and "lower" will be used in the following description. Figure 10 The position of the middle terminal 211 is "up".

[0045] like Figures 1 to 3 As shown, a cyclone dust collector with adaptively adjustable blade angle includes a cyclone dust collector body 1 and a control system; the cyclone dust collector body 1 includes a shell and blade units 2; the shell is provided with an air inlet 108 and an air outlet 104, and the blade units 2 are disposed inside the shell.

[0046] like Figures 4 to 6 As shown, the blade unit 2 includes a swirl blade 209, a fixed assembly, a rotating assembly, and a servo motor 208;

[0047] like Figure 9 , Figure 10 As shown, the fixing assembly includes a terminal 211, a support rod 210, a guide cone 214, a fixing inner ring 203, a fixing outer ring 213, and a first connecting rod 212. The axis of the guide cone 214 coincides with the axis of the housing, and the tip of the guide cone 214 faces the air inlet 108. The support rod 210 is fixed inside the guide cone 214, and the axis of the support rod 210 coincides with the axis of the guide cone 214. One end of the support rod 210 near the air inlet 108 passes through the tip of the guide cone 214 and extends outward. The terminal 211 is disposed outside the guide cone 214 and fixedly connected to the support rod 210. One end of the first connecting rod 212 is fixed to the side of the support rod 210 near the air outlet 104, and the other end passes through the guide cone 214 and extends outward. The axis of the support rod 210 coincides with the axis of the housing. The axes of the first connecting rod 212 are perpendicular to each other; three first connecting rods 212 are arranged in a circular array with the axis of the support rod 210 as the center; the fixed inner ring 203 is sleeved on the outside of the guide cone 214, and there is a gap between the outer ring of the fixed inner ring 203 and the inner ring of the fixed outer ring 213; the fixed outer ring 213 is sleeved on the outside of the fixed inner ring 203, and there is a gap between the outer ring of the fixed inner ring 203 and the inner ring of the fixed outer ring 213; the fixed outer ring 213 and the fixed inner ring 203 are fixedly connected to the first connecting rod 212 respectively; the upper end face of the fixed outer ring 213 is provided with a plurality of first oblique holes 220, and the lower end face of the terminal 211 is provided with a plurality of second oblique holes 219 corresponding to the first oblique holes 220, and the axes of the first oblique holes 220 and the axes of the second oblique holes 219 are coincident;

[0048] like Figure 5 , Figure 6 , Figure 8As shown, the rotating assembly includes a rotating ring 202, a second connecting rod 205, a ring sleeve 215, and a first gear 201; the ring sleeve 215 and the first gear 201 are rotatably sleeved on the support rod 210; the lower end face of the first gear 201 is fixedly connected to the upper end face of the ring sleeve 215; one end of the second connecting rod 205 is fixed to the outside of the ring sleeve 215, and the other end passes through the guide cone 214 and extends outward; the rotating ring 202 is sleeved on the outside of the guide cone 214, and the lower end face of the rotating ring 202 is in frictional contact with the upper end face of the fixed inner ring 203; the upper end face of the fixed outer ring 213 is flush with the upper end face of the rotating ring 202; the upper end face of the rotating ring 202 is provided with a plurality of guide grooves 218; the number of the first oblique hole 220, the second oblique hole 219, and the guide grooves 218 are the same, matching the corresponding swirl blades 209, and are respectively distributed in a circular array with the axis of the guide cone 214 as the center;

[0049] like Figure 6 , Figure 7 , Figure 10 As shown, multiple swirl blades 209 are arranged in a circular array around the axis of the guide cone 214. A shaft 217 is fixedly installed inside each swirl blade 209. The upper end of the shaft 217 is rotatably installed in the second inclined hole 219, and the lower end is rotatably installed in the corresponding first inclined hole 220. A guide ball 216 is fixedly installed on the lower end face of the swirl blade 209, and the guide ball 216 is slidably installed in the guide groove 218. The swirl blade 209 can rotate around the axis of the shaft 217. The guide ball 216 always slides in the guide groove 218. When the rotating ring 202 rotates, it pulls the guide ball 216 to move in the guide groove 218, thereby causing the swirl blade 209 to rotate. Multiple swirl blades 209 move synchronously under the drive of the rotating ring 202, realizing the expansion and closure of the swirl blades 209.

[0050] like Figure 4 , Figure 8 As shown, the servo motor 208 is fixed inside the guide cone 214, and the output shaft of the servo motor 208 is connected to the second gear 207, which meshes with the first gear 201 and rotates.

[0051] The swirl vane 209 can rotate around the axis of the guide cone 214 as the rotation center, driven by the servo motor 208 to rotate a certain angle. The specific transmission relationship is as follows: after the servo motor 208 starts, it drives the second gear 207 to rotate. Through the meshing of the second gear 207 and the first gear 201, the first gear 201 and the rotating ring 202 are driven to rotate. When the rotating ring 202 rotates, the guide groove 218 on its upper part rotates together with the rotating ring 202. The guide groove 218 pulls the guide ball 216 inside it to slide inside the guide groove 218. At the same time, when the guide ball 216 moves, it will drive the swirl vane 209 to rotate around the shaft 217 of the swirl vane 209, so as to realize the expansion or closure of multiple swirl vanes 209. The larger the rotation angle of the second gear 207, the larger the expansion angle of the swirl vane 209, and the better the spiral effect of the dust-laden airflow. The output shaft of the servo motor 208 rotates in the opposite direction, driving the swirl vane 209 to rotate in the opposite direction, reducing the expansion angle of the swirl vane 209.

[0052] like Figure 11 As shown, the control system includes: a dust-laden airflow monitoring unit, used to monitor in real time the dust mass concentration, particle size distribution, and airflow of the dust-laden airflow at the air inlet 108 and air outlet 104 of the cyclone dust collector body 1; and a central processing unit, connected to the dust-laden airflow monitoring unit and the servo motor 208, used to process the data monitored by the dust-laden airflow monitoring unit, obtain the dust mass concentration, particle size distribution, and airflow, determine the appropriate angle setting of the cyclone blades 209 and generate cyclone blade 209 adjustment control data, and control the servo motor 208 to run and adjust the angle setting of the cyclone blades 209 according to the cyclone blade 209 adjustment control data.

[0053] Furthermore, such as Figure 5 As shown, a strip-shaped guide hole 204 is provided on the guide cone 214. One end of the second connecting rod 205 passes through the strip-shaped guide hole 204 from the inside of the guide cone 214 and extends outward. The strip-shaped guide hole 204 facilitates the first gear 201 to drive the rotating ring 202 to rotate through the second connecting rod 205.

[0054] Furthermore, the fixing assembly also includes an extension tube 206; one end of the extension tube 206 is fixedly connected to the lower end face of the guide cone 214, and the other end extends toward the side away from the guide cone 214. The extension tube 206 is used to fill the low-pressure area that appears near the axis of the fixed outer ring 213 when the cyclone dust collector is running, so that the dust adheres to the inner wall of the shell along the spiral trajectory of the cyclone blades 209 and moves along its axial direction.

[0055] Furthermore, such as Figure 2 , Figure 3As shown, the housing includes a tube body 101, a dust collection cylinder 102, and a tailpipe 105; the outer ring of the fixing outer ring 213 is fixedly connected to the inside of the tube body 101, and the axes of the fixing outer ring 213, the tube body 101, the dust collection cylinder 102, and the tailpipe 105 coincide; the air inlet 108 is located at the front end of the tube body 101, the rear end of the tube body 101 is connected to one end of the dust collection cylinder 102, and the tailpipe 105 is connected to the other end of the dust collection cylinder 102; the inner diameter of the dust collection cylinder 102 is larger than the inner diameter of the tube body 101, and the inner diameter of the tailpipe 105 is smaller than the inner diameter of the tube body 101; a discharge port 106 is provided at the bottom side of the dust collection cylinder 102, which is used to discharge the separated dust, and the airflow that has separated the dust is discharged from the tailpipe 105.

[0056] Furthermore, such as Figure 2 , Figure 3 As shown, an extension pipe 107 is fixedly installed inside the dust collection cylinder 102 near the tail pipe 105, and the extension pipe 107 is connected to the tail pipe 105. Multiple arc-shaped guide plates 103 are provided on the outer wall of the extension pipe 107. The multiple arc-shaped guide plates 103 are arranged in a circular array with the axis of the extension pipe 107 as the center. When the dust moves to the outer wall of the extension pipe 107, the airflow moves in a spiral trajectory along the arc-shaped guide plates 103, so that the dust moves to the inner wall of the dust collection cylinder 102 under the action of centrifugal force and is discharged from the discharge port 106 of the dust collection cylinder 102.

[0057] Furthermore, the inner wall of the dust collection cylinder 102 is coated with polytetrafluoroethylene, making the inner wall of the dust collection cylinder 102 smoother and facilitating the smooth discharge of dust.

[0058] Furthermore, the dust-laden airflow monitoring unit includes a first monitoring group installed at the air inlet 108 and a second monitoring group installed at the air outlet 104; the first monitoring group includes a multi-channel particle size distribution sensor I and an airflow sensor; the second monitoring group includes a multi-channel particle size distribution sensor II; the central processing unit includes a receiving unit, an information processing unit, a judgment unit, and a drive control unit; the receiving unit is electrically connected to the dust-laden airflow monitoring unit and transmits the monitoring data to the information processing unit; the information processing unit processes the dust mass concentration, particle size distribution, and airflow data to obtain the data, and transmits the dust mass concentration, particle size distribution, and airflow data to the judgment unit. The unit determines the appropriate angle setting for the swirl vanes 209 based on the dust concentration, particle size distribution, and airflow data in the dust-laden airflow at the inlet 108 and outlet 104. The drive control unit sends commands to the servo motor 208 for motor operation control. The swirl vane 209 angle settings include low, medium, medium-high, and high. Higher settings result in a larger rotation angle for the swirl vanes 209, leading to a better spiral effect in the dust-laden airflow. Multi-channel particle size distribution sensors I and II are used to monitor the dust concentration and particle size distribution data in the dust-laden airflow. An airflow sensor... Used to monitor the flow rate and wind speed data of dust-laden airflow; when the airflow sensor detects that the flow rate and wind speed data of dust-laden airflow are in the low airflow range set in the central processing unit, the drive control unit controls the swirl vane 209 to increase the unfolding angle, the resistance of the dust-laden airflow increases, the flow time of the dust-laden airflow between the swirl vane 209 and the inner wall of the tube 101 is extended, and the spiral effect of the dust-laden airflow after passing through the swirl vane 209 is improved. After the dust-laden airflow moves in a spiral motion along the swirl vane 209, it moves to the inner wall of the tube 101 and moves along the axial direction of the tube 101 into the dust collection cylinder 102; When the flow rate and wind speed of the dust-laden airflow are within the high-volume range set by the central processing unit, the drive control unit controls the swirl vanes 209 to reduce their unfolding angle. This reduces the resistance to the dust-laden airflow and shortens the flow time between the swirl vanes 209 and the inner wall of the tube 101, facilitating the rapid passage of the dust-laden airflow. Simultaneously, due to the high velocity of the dust-laden airflow, after spiraling along the swirl vanes 209, the airflow moves to the inner wall of the tube 101 and then along the axial direction of the tube 101 into the dust collection cylinder 102, ensuring effective dust separation under the premise of smooth airflow.

[0059] A dust removal method for a cyclone dust collector with adaptively adjustable blade angle includes the following steps:

[0060] S1: The dust-laden airflow enters the cyclone dust collector body 1. The first monitoring group monitors and obtains the dust mass concentration, particle size distribution and air volume data at the air inlet 108. The central processing unit obtains the gear corresponding to the dust mass concentration and particle size distribution at the air inlet 108 from the preset adjustment strategy.

[0061] S2: The central processing unit determines the relationship between the air volume of the air inlet 108 and the preset range limit. If the air volume of the air inlet 108 is less than the minimum limit of the preset range, it sends a signal to the drive control unit to increase the speed; if the air volume of the air inlet 108 is greater than the maximum limit of the preset range, it sends a signal to the drive control unit to decrease the speed; if the air volume of the air inlet 108 is within the preset range, the original speed remains unchanged.

[0062] S3: The dust mass concentration data at the air outlet 104 is obtained by monitoring the second monitoring group. It is determined whether the dust mass concentration at the air outlet 104 is greater than the maximum limit of the filtered dust mass concentration of the set gear. If so, a signal is sent to the drive control unit to adjust the gear level; otherwise, the original gear level remains unchanged.

[0063] S4: Through the adjustments in steps S1-S3, the dust mass concentration, particle size distribution, and air volume are matched with the set gear.

[0064] Dust removal principle: The dust-laden airflow enters the pipe body 101 and is induced by the swirl vanes 209. It rotates in a spiral trajectory in the area enclosed by the swirl vanes 209 and the shell and flows along the axis of the pipe body 101 toward the dust collection cylinder 102. Under the action of centrifugal force, the dust moves along the inner wall of the pipe body 101. Finally, the dust is separated from the dust-laden airflow and discharged through the dust collection cylinder 102. The treated airflow is discharged from the tailpipe 105.

Claims

1. A cyclone dust collector with adaptively adjustable blade angle, characterized in that, It includes a cyclone dust collector body (1) and a control system; the cyclone dust collector body (1) includes a shell and blade units (2); the shell is provided with an air inlet (108) and an air outlet (104), and the blade units (2) are arranged inside the shell; The blade unit (2) includes a swirl blade (209), a fixed assembly, a rotating assembly, and a servo motor (208); The fixing assembly includes a terminal (211), a support rod (210), a guide cone (214), a fixing inner ring (203), a fixing outer ring (213), and a first connecting rod (212). The axis of the guide cone (214) coincides with the axis of the housing, and the tip of the guide cone (214) faces the air inlet (108). The support rod (210) is fixed inside the guide cone (214), and one end of the support rod (210) near the air inlet (108) passes through the tip of the guide cone (214) and extends outward. The terminal (211) is located outside the guide cone (214) and is fixedly connected to the support rod (210). One end of the first connecting rod (212) is fixed to the support rod (210) on the side near the air outlet (104), and the other end passes through the guide cone (214) and extends outward. The axis of the support rod (210) is perpendicular to the axis of the first connecting rod (212); the inner fixed ring (203) is fitted outside the guide cone (214), and the outer fixed ring (213) is fitted outside the inner fixed ring (203); the outer fixed ring (213) and the inner fixed ring (203) are respectively fixedly connected to the first connecting rod (212); the upper end face of the outer fixed ring (213) is provided with a plurality of first oblique holes (220), and the lower end face of the terminal (211) is provided with a plurality of second oblique holes (219) corresponding to the first oblique holes (220); the guide cone (214) is provided with a strip-shaped guide hole (204); the fixing assembly also includes an extension tube (206); one end of the extension tube (206) is fixedly connected to the lower end face of the guide cone (214), and the other end extends toward the side away from the guide cone (214); The rotating assembly includes a rotating ring (202), a second connecting rod (205), a ring sleeve (215), and a first gear (201); the ring sleeve (215) and the first gear (201) are rotatably sleeved on the support rod (210); the lower end face of the first gear (201) is fixedly connected to the upper end face of the ring sleeve (215); one end of the second connecting rod (205) is fixed to the outside of the ring sleeve (215), and the other end passes through the guide cone (214) and extends outward; the rotating ring (202) The outer ring (213) is fitted outside the guide cone (214), and the lower end face of the rotating ring (202) is in frictional contact with the upper end face of the fixed inner ring (203); the upper end face of the fixed outer ring (213) is flush with the upper end face of the rotating ring (202); the upper end face of the rotating ring (202) is provided with multiple guide grooves (218); the number of the first oblique hole (220), the second oblique hole (219), and the guide grooves (218) are the same, and they are arranged in a circular array with the axis of the guide cone (214) as the center; A shaft (217) is fixedly installed inside the swirl blade (209); the upper end of the shaft (217) is rotatably installed in the second inclined hole (219), and the lower end is rotatably installed in the first inclined hole (220); a guide ball (216) is fixedly installed on the lower end face of the swirl blade (209), and the guide ball (216) is slidably installed in the guide groove (218); The servo motor (208) is fixed inside the guide cone (214), and a second gear (207) is connected to the output shaft of the servo motor (208). The second gear (207) meshes with the first gear (201) and rotates. The housing includes a tube body (101), a dust collection cylinder (102), and a tailpipe (105); the outer ring of the fixing outer ring (213) is fixedly connected to the inside of the tube body (101), and the axes of the fixing outer ring (213), the tube body (101), the dust collection cylinder (102), and the tailpipe (105) coincide; the air inlet (108) is located at the front end of the tube body (101), the rear end of the tube body (101) is connected to one end of the dust collection cylinder (102), and the tailpipe (105) is connected to the dust collection cylinder (102). The other end of the dust collection cylinder (102) is connected; the inner diameter of the dust collection cylinder (102) is larger than the inner diameter of the pipe body (101), and the inner diameter of the tail pipe (105) is smaller than the inner diameter of the pipe body (101); a discharge port (106) is provided at the bottom side of the dust collection cylinder (102); an extension pipe (107) is fixedly provided inside the dust collection cylinder (102) on the side near the tail pipe (105), and the extension pipe (107) is connected to the tail pipe (105); multiple arc-shaped diversion plates (103) are provided on the outer wall of the extension pipe (107); The control system includes: A dust-laden airflow monitoring unit is used to monitor in real time the dust mass concentration, particle size distribution, and airflow of the dust-laden airflow at the air inlet (108) and air outlet (104) of the cyclone dust collector body (1). The dust-laden airflow monitoring unit includes a first monitoring group set at the air inlet (108) and a second monitoring group set at the air outlet (104). The first monitoring group includes a multi-channel particle size distribution sensor I and an airflow sensor. The second monitoring group includes a multi-channel particle size distribution sensor II. The central processing unit is connected to the dust-laden airflow monitoring unit and the servo motor (208). It is used to process the data monitored by the dust-laden airflow monitoring unit, obtain the dust mass concentration, particle size distribution and air volume, determine the appropriate swirl blade (209) angle setting and generate swirl blade (209) adjustment control data, and control the servo motor (208) to run and adjust the swirl blade (209) angle setting according to the swirl blade (209) adjustment control data. The central processing unit includes a receiving unit, an information processing unit, a judgment unit and a drive control unit.

2. The cyclone dust collector with adaptively adjustable blade angle as described in claim 1, characterized in that, One end of the second connecting rod (205) passes through the strip guide hole (204) from the inside of the guide cone (214) and extends outward.

3. A cyclone dust collector with adaptively adjustable blade angle as described in claim 1, characterized in that, Multiple of the arc-shaped drainage plates (103) are arranged in a circular array with the axis of the extension tube (107) as the center.

4. A cyclone dust collector with adaptively adjustable blade angle as described in claim 1, characterized in that, The inner wall of the dust collection cylinder (102) is coated with polytetrafluoroethylene.

5. A cyclone dust collector with adaptively adjustable blade angle as described in claim 1, characterized in that, The receiving unit is electrically connected to the dust-laden airflow monitoring unit and transmits the monitoring data to the information processing unit. The information processing unit processes the dust mass concentration, particle size distribution and airflow data and transmits the dust mass concentration, particle size distribution and airflow data to the judgment unit. The judgment unit matches the appropriate swirl vane (209) angle setting according to the dust mass concentration, particle size distribution and airflow data in the dust-laden airflow at the air inlet (108) and air outlet (104), and sends a command to the servo motor (208) by the drive control unit to control the operation of the motor.

6. A dust removal method for a cyclone dust collector with adaptively adjustable blade angle, implemented based on the cyclone dust collector with adaptively adjustable blade angle as described in claim 1, characterized in that... Includes the following steps: S1: Dust-laden airflow enters the cyclone dust collector body (1), and the dust mass concentration, particle size distribution and air volume data at the air inlet (108) are obtained by the first monitoring group. The central processing unit obtains the gear corresponding to the dust mass concentration and particle size distribution at the air inlet (108) from the preset adjustment strategy. S2: The central processing unit determines the relationship between the air volume of the air inlet (108) and the preset range limit. If the air volume of the air inlet (108) is less than the minimum limit of the preset range, it sends a signal to the drive control unit to adjust the gear level; if the air volume of the air inlet (108) is greater than the maximum limit of the preset range, it sends a signal to the drive control unit to adjust the gear level; if the air volume of the air inlet (108) is within the preset range, the original gear level remains unchanged. S3: The dust mass concentration data at the air outlet (104) is obtained by monitoring the second monitoring group. It is determined whether the dust mass concentration at the air outlet (104) is greater than the maximum limit of the filtered dust mass concentration of the set gear. If it is, a signal is sent to the drive control unit to adjust the gear level; if not, the original gear level remains unchanged. S4: Through the adjustments in steps S1-S3, the dust mass concentration, particle size distribution, and air volume are matched with the set gear.

7. The dust removal method for a cyclone dust collector with adaptively adjustable blade angle as described in claim 6, characterized in that, When the first monitoring group detects that the flow rate and wind speed of the dust-laden airflow are within the low airflow range set in the central processing unit, the drive control unit controls the swirl vanes (209) to increase the unfolding angle. The dust-laden airflow moves in a spiral motion along the swirl vanes (209) and then moves to the inner wall of the tube (101) and moves along the axial direction of the tube (101) into the dust collection cylinder (102).

8. The dust removal method for a cyclone dust collector with adaptively adjustable blade angle as described in claim 7, characterized in that, When the first monitoring group detects that the flow rate and wind speed of the dust-laden airflow are within the high airflow range set in the central processing unit, the drive control unit controls the swirl vanes (209) to reduce the unfolding angle. The dust-laden airflow moves in a spiral motion along the swirl vanes (209) and then moves to the inner wall of the tube (101) and moves along the axial direction of the tube (101) into the dust collection cylinder (102).

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