Search

CN-116174177-B - Cyclone dust collector with adaptively adjustable blade angle and dust collection method

CN116174177BCN 116174177 BCN116174177 BCN 116174177BCN-116174177-B

Abstract

The invention provides a cyclone dust collector with a blade angle capable of being adaptively adjusted and a dust collection method, comprising a cyclone dust collector body and a control system; the data change of dust in the air flow entering the cyclone body is monitored in real time through a control system, and the angle adjustment of the cyclone blades of the cyclone body is controlled according to the monitored data, so that the dynamic adjustment of the ventilation quantity is completed; the invention designs the angle of the dynamic adjustment cyclone blade to realize the dynamic adjustment of the ventilation quantity; the airflow entering the cyclone dust collector body clings to the inner wall of the shell in a spiral track and moves along the axial direction of the airflow through the cyclone blades, and the airflow enters the dust collection barrel, so that dust collection and centralized treatment are facilitated; through the arc drainage plate that the extension pipe outside set up, make the dust move to the inner wall position of a dust collection section of thick bamboo under centrifugal force effect, discharge from the discharge port position of a dust collection section of thick bamboo, improve the dust separation effect.

Inventors

  • XIN HAIHUI
  • FAN JIAQI
  • TAN HANYUE
  • ZHANG PENGCHENG
  • ZHOU QUN
  • ZHOU BANGHAO
  • Tang zuo
  • TIAN WENJIANG

Assignees

  • 中国矿业大学

Dates

Publication Date
20260512
Application Date
20221116

Claims (8)

  1. 1. The cyclone dust collector with the self-adaptive blade angle adjustment function is characterized by comprising a cyclone dust collector body (1) and a control system, wherein the cyclone dust collector body (1) comprises a shell and a blade unit (2), an air inlet (108) and an air outlet (104) are arranged on the shell, and the blade unit (2) is arranged in the shell; the blade unit (2) comprises a swirl blade (209), a fixed assembly, a rotating assembly and a servo motor (208); the fixing assembly comprises a terminal (211), a support rod (210), a guide cone (214), a fixed inner ring (203), a fixed outer ring (213) and a first connecting rod (212), wherein the axis of the guide cone (214) coincides with the axis of the shell, the tip of the guide cone (214) is arranged towards the air inlet (108), the support rod (210) is fixed inside the guide cone (214), one end, close to the air inlet (108), of the support rod (210) passes through the tip of the guide cone (214) and extends outwards, the terminal (211) is arranged outside the guide cone (214) and is fixedly connected with the support rod (210), one end of the first connecting rod (212) is fixed on one side, close to the air outlet (104), of the support rod (210), the other side passes through the guide cone (214) and extends towards the outside of the guide cone (214), the axis of the support rod (210) is perpendicular to the axis of the first connecting rod (212), the fixed inner ring (203) is sleeved outside the guide cone (214), the fixed outer ring (213) is sleeved outside the guide cone (213), the fixed outer ring (213) is sleeved outside the fixed inner ring (203), one end face (213) is fixedly connected with the first connecting rod (213) respectively, the fixing assembly further comprises an extension cylinder (206), wherein one end of the extension cylinder (206) is fixedly connected with the lower end face of the guide cone (214), and the other end of the extension cylinder extends towards one side far away from the guide cone (214); The rotating assembly comprises a rotating ring body (202), a second connecting rod (205), a ring sleeve (215) and a first gear (201), wherein the ring sleeve (215) and the first gear (201) are rotatably sleeved on a supporting rod (210), the lower end face of the first gear (201) is fixedly connected with the upper end face of the ring sleeve (215), one end of the second connecting rod (205) is fixed outside the ring sleeve (215), the other end of the second connecting rod passes through a guide cone (214) and extends outwards, the rotating ring body (202) is sleeved outside the guide cone (214), the lower end face of the rotating ring body (202) is in friction contact with the upper end face of a fixed inner ring (203), the upper end face of a fixed outer ring (213) is flush with the upper end face of the rotating ring body (202), a plurality of guide grooves (218) are formed in the upper end face of the rotating ring body (202), the number of the first inclined holes (220), the second inclined holes (219) and the guide grooves (218) are identical, and the axes of the guide cones (214) are distributed in a circumferential array respectively by taking the axes of the guide cone (214) as the centers; The cyclone vane (209) is internally and fixedly provided with a shaft lever (217), the upper end of the shaft lever (217) is rotatably arranged in the second inclined hole (219), the lower end of the shaft lever is rotatably arranged in the first inclined hole (220), the lower end surface of the cyclone vane (209) is fixedly provided with a guide ball (216), and the guide ball (216) is slidably arranged in the guide groove (218); the servo motor (208) is fixed in the diversion cone (214), a second gear (207) is connected to the output shaft of the servo motor (208), and the second gear (207) is meshed with the first gear (201) for rotation; the dust collecting device comprises a shell body (101), a dust collecting barrel (102) and a tail pipe (105), wherein the outer ring of a fixed outer ring (213) is fixedly connected with the inside of the shell body (101), the axes of the fixed outer ring (213), the shell body (101), the dust collecting barrel (102) and the tail pipe (105) are overlapped, an air inlet (108) is formed in the front end of the shell body (101), the rear end of the shell body (101) is communicated with one end of the dust collecting barrel (102), the tail pipe (105) is communicated with the other end of the dust collecting barrel (102), the inner diameter of the dust collecting barrel (102) is larger than the inner diameter of the shell body (101), the inner diameter of the tail pipe (105) is smaller than the inner diameter of the shell body (101), an exhaust port (106) is formed in the bottom of the side face of the dust collecting barrel (102), one side, close to the tail pipe (105), of the inside of the dust collecting barrel (102) is fixedly provided with an extension pipe (107), the extension pipe (107) is communicated with the tail pipe (105), and a plurality of arc-shaped drainage plates (103) are arranged on the outer wall of the extension pipe (107). The control system includes: the dust-containing airflow monitoring unit is used for monitoring dust mass concentration, particle size distribution and air quantity of dust-containing airflow at an air inlet (108) and an air outlet (104) of the cyclone dust collector body (1) in real time, and comprises a first monitoring group arranged at the air inlet (108) and a second monitoring group arranged at the air outlet (104); The central processing unit is connected with the dust-containing airflow monitoring unit and the servo motor (208) and is used for processing data monitored by the dust-containing airflow monitoring unit, acquiring dust mass concentration, particle size distribution and air quantity, judging proper rotational flow blade (209) angle gear and generating rotational flow blade (209) adjusting control data, controlling the servo motor (208) to operate according to the rotational flow blade (209) adjusting control data and adjusting the rotational flow blade (209) angle gear, and the central processing unit comprises a receiving unit, an information processing unit, a judging unit and a driving control unit.
  2. 2. A cyclone dust collector with an adaptively adjustable blade angle according to claim 1, wherein 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 outwards.
  3. 3. A cyclone dust collector with adaptively adjustable blade angle according to claim 1, wherein a plurality of the arc-shaped flow guiding plates (103) are distributed in a circumferential array centering on the axis of the extension pipe (107).
  4. 4. A cyclone dust collector with an adaptively adjustable blade angle according to claim 1, wherein the inner wall of the dust collection tube (102) is provided with a polytetrafluoroethylene coating.
  5. 5. The cyclone dust collector with the self-adaptive blade angle adjustment function according to claim 1, wherein the receiving unit is electrically connected with the dust-containing airflow monitoring unit and transmits monitoring data to the information processing unit, the information processing unit processes the dust mass concentration, the particle size distribution and the wind volume data to obtain the dust mass concentration, the particle size distribution and the wind volume data and transmits the dust mass concentration, the particle size distribution and the wind volume data to the judging unit, and the judging unit matches the proper rotational flow blade (209) angle gear according to the dust mass concentration, the particle size distribution and the wind volume data in the dust-containing airflow at the air inlet (108) and the air outlet (104), and the driving control unit sends an instruction to the servo motor (208) to control the operation of the motor.
  6. 6. A cyclone dust removal method with adaptively adjustable blade angle, which is realized based on the cyclone dust remover with adaptively adjustable blade angle according to claim 1, and is characterized by comprising the following steps: S1, enabling dust-containing air flow to enter a cyclone dust collector body (1), monitoring and acquiring dust mass concentration, particle size distribution and air quantity data at an air inlet (108) through a first monitoring group, and acquiring gears corresponding to the dust mass concentration and the particle size distribution at the air inlet (108) from a preset adjustment strategy by a central processor; S2, judging the relation between the air volume of the air inlet (108) and the limit value of the preset range by the central processing unit, if the air volume of the air inlet (108) is smaller than the minimum limit value of the preset range, sending a signal to the drive control unit to adjust up the gear; s3, monitoring and obtaining dust mass concentration data of the air outlet (104) through a second monitoring group, judging whether the dust mass concentration of the air outlet (104) is larger than the maximum limit value of the dust mass concentration after filtering of the set gear, if so, sending a signal to a drive control unit to adjust the gear up, otherwise, keeping the original gear unchanged; And S4, matching the dust mass concentration, the particle size distribution and the air quantity with the set gear through the adjustment in the steps S1-S3.
  7. 7. The cyclone dust removal method with the self-adaptive blade angle adjustment according to claim 6, wherein when the first monitoring group monitors that the flow rate and the wind speed data of the dust-containing air flow are in a small wind volume gear range set in the central processing unit, the driving control unit controls the cyclone blade (209) to increase the unfolding angle, and the dust-containing air flow moves to the inner wall of the pipe body (101) and moves into the dust collection barrel (102) along the axis direction of the pipe body (101) after the cyclone blade (209) performs spiral movement.
  8. 8. The cyclone dust removal method with the self-adaptive blade angle adjustment according to claim 7, wherein when the first monitoring group monitors that the flow rate and the wind speed data of the dust-containing air flow are in a large wind volume gear range set in the central processing unit, the driving control unit controls the cyclone blade (209) to reduce the unfolding angle, and the dust-containing air flow moves to the inner wall of the pipe body (101) and moves into the dust collection barrel (102) along the axial direction of the pipe body (101) after the cyclone blade (209) performs spiral movement.

Description

Cyclone dust collector with adaptively adjustable blade angle and dust collection method Technical Field The invention relates to the technical field of cyclone dust collectors, in particular to a cyclone dust collector with a blade angle capable of being adaptively adjusted and a dust collection method. Background Cyclone dust collectors are a type of dust collector. The dust removing mechanism is to make the dust-containing air flow make rotary motion, separate dust particles from the air flow by means of centrifugal force and trap them on the wall of the air flow, then make the dust particles fall into the dust hopper by means of gravity. In the prior art, the performance of the direct-current cyclone dust collector is greatly affected by the parameters of the blades, the blades inside the traditional direct-current cyclone dust collector are usually welded inside a shell, the blades cannot be dynamically adjusted in real time according to the specific parameters of dust-containing air flow, the dust collection efficiency is low, and how to improve the dust collection efficiency of the direct-current cyclone dust collector is a problem to be solved in the industry. Publication number CN104741253B discloses a direct current guide vane type cyclone dust collector, which comprises an air inlet, an outer cylinder, guide vanes, a guide body, an air outlet and a dust exhausting device. The guide body is fixed in the outer cylinder and is coaxial with the outer cylinder. In particular, the guide vane is close to the air inlet, and the guide vane, the outer cylinder and the guide body are connected into a whole; the outer cylinder, the guide body and the air outlet have the same axis, the guide vane is in vertical contact with the axis, and an annular area is formed between the outer part of the guide body and the inner part of the outer cylinder. The dust-containing air flow enters the outer cylinder through the air inlet, rotates in the annular area under the action of the guide vane and flows along the axial direction, particles in the dust-containing air flow enter the dust exhausting device under the action of centrifugal force, and the air flow after dust removal is sent out through the air outlet. The guide vane in the direct current guide vane type cyclone dust collector is rigidly connected to the guide body, the annular flow field formed between the outer part of the guide body and the inner part of the outer cylinder is constant in size, the dynamic adjustment of ventilation quantity can not be realized according to the dust content in dust-containing airflow, and the dust collection efficiency is low and the effect is poor. Disclosure of Invention Aiming at the technical defects, the invention aims to provide the cyclone dust collector with the blade angle capable of being adaptively adjusted and the dust collection method, so that the dynamic adjustment of the flow velocity of air flow in the cyclone dust collector is realized, and the dust collection efficiency and efficiency of the direct-current cyclone dust collector are improved. In order to achieve the above purpose, the invention adopts the following technical scheme: the cyclone dust collector with the self-adaptive blade angle adjustment comprises a cyclone dust collector body and a control system, wherein the cyclone dust collector body comprises a shell and a blade unit, an air inlet and an air outlet are arranged on the shell, and the blade unit is arranged in the shell; The blade unit comprises a rotational flow blade, a fixed component, a rotating component and a servo motor; The fixing assembly comprises a terminal, a supporting rod, a flow guiding cone, a fixing inner ring, a fixing outer ring and a first connecting rod; the axial line of the guide cone coincides with the axial line of the shell, the tip part of the guide cone faces the air inlet, the supporting rod is fixed in the guide cone, one end of the supporting rod, which is close to the air inlet, passes through the tip part of the guide cone and extends outwards, the terminal is arranged outside the guide cone and is fixedly connected with the supporting rod, one end of the first connecting rod is fixed on one side of the supporting rod, which is close to the air outlet, and the other side of the first connecting rod passes through the guide cone and extends outside the guide cone; The rotating assembly comprises a rotating ring body, a second connecting rod, a ring sleeve and a first gear, wherein the ring sleeve and the first gear are rotatably sleeved on a supporting rod, the lower end face of the first gear is fixedly connected with the upper end face of the ring sleeve, one end of the second connecting rod is fixed outside the ring sleeve, the other end of the second connecting rod penetrates through a guide cone and extends outwards, the rotating ring body is sleeved outside the guide cone, the lower end face of the rotating ring body is in friction contact with the u