Feeding mechanism of superfine rotor powder concentrator

Abstract

The invention relates to the technical field of powder concentrator feeding, and discloses a feeding mechanism of a superfine rotor powder concentrator, which comprises a powder concentrator main body, the outer wall of the powder concentrator main body is connected with a main air inlet, the bottom of the powder concentrator main body is connected with a powder concentrator lower cone, the bottom of the powder concentrator lower cone is provided with a coarse powder port, and the bottom of the powder concentrator lower cone is provided with a fine powder port. The top of the powder concentrator body is fixedly connected with a fixing frame, the top of the fixing frame is provided with a rotating motor, the bottom of the rotating motor is movably connected with a small rotating wheel, the outer wall of the small rotating wheel is sleeved with a belt, the inner wall of the belt is sleeved with a large rotating wheel, and the top of the powder concentrator body is connected with a fixing cylinder. According to the feeding mechanism of the superfine rotor powder concentrator, by arranging the flow discharge cover, the flow discharge cavity, the lower conical cover, the main exhaust port and other structures, air is prevented from flowing downwards along with fine powder, then when the fine powder is discharged out of the device, the fine powder is raised again through the air, and follow-up collection and conveying of the fine powder are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of powder classifier feeding, in particular to a feeding mechanism of an ultrafine rotor powder classifier. Background Art

[0002] The existing device uses a high-speed rotating rotor to rotate in the powder classifier, and uses a strong airflow to enter the device, spirally rise from bottom to top and carry the fine powder to flow, and uses rotor blades or grading plates for screening, so that the material is subdivided into coarse powder and fine powder, thereby preventing the coarse powder from entering the fine powder area at the same time. In this process, the airflow enters the fine powder conveying area synchronously with the fine powder, but when the fine powder is output downward, the airflow will cause airflow impact on the fine powder again, causing the fine powder to be passively lifted. For this reason, it is necessary to avoid the situation where the fine powder is lifted again when it is output to the outside of the device, and when the device discharges the fine powder, it is necessary to avoid the agglomeration and accumulation of the fine powder, and avoid the problem of powder discharge. In the process of powder selection of the device, it is necessary to further observe the screened fine powder to avoid the situation where the fine powder is unqualified, resulting in an unsatisfactory fine powder product. Therefore, a feeding mechanism of an ultrafine rotor powder classifier that solves the above problems is needed. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a feeding mechanism for an ultrafine rotor powder classifier, which solves the problems mentioned in the above background.

[0004] The present invention provides the following technical solution: a feeding mechanism of an ultrafine rotor powder classifier, comprising: a powder classifier body, the outer wall of the powder classifier body is connected to a total air inlet, the bottom of the powder classifier body is connected to a powder classifier lower cone, the bottom of the powder classifier lower cone is provided with a coarse powder outlet, the top of the powder classifier body is fixedly connected to a fixing frame, the top of the fixing frame is equipped with a rotating motor, the bottom of the rotating motor is movably connected to a small rotating wheel, the outer wall of the small rotating wheel is sleeved with a belt, the inner wall of the belt A large rotating wheel is sleeved, the top of the powder classifier body is connected to a fixed cylinder, the top of the fixed cylinder is provided with a rubber ring, the inner wall of the fixed cylinder is sleeved with a rotating discharge cylinder, the top of the rotating discharge cylinder is provided with a feeding pipe, the inner wall of the powder classifier body is provided with a movable groove, the inner wall of the movable groove is sleeved with a large disc, the bottom of the large disc is connected with a large rotating blade, the bottom of the large rotating blade is connected with a middle disc, the bottom of the middle disc is connected with an upper connecting rod, and the end of the upper connecting rod away from the middle disc is connected with The outer wall of the partition plate is connected with a grading plate, the bottom of the partition plate is connected with a lower connecting rod, the bottom of the lower connecting rod is connected with a small disc, the bottom of the small disc is connected with a small rotating blade, the bottom of the small rotating blade is connected with a blocking head, the outer wall of the fixed cylinder is provided with an air flow slot, the top of the powder classifier body is provided with a drainage pipe, the inner cavity of the drainage pipe is provided with a drainage cavity, the end of the drainage pipe away from the powder classifier body is connected with a round cover, the bottom of the round cover is fixedly connected with a discharge cover, and the discharge cover is provided with a discharge cavity. The inner cavity of the cover is provided with a flow discharge cavity, the bottom of the flow discharge cover is fixedly connected with a lower cone cover, the inner cavity of the lower cone cover is provided with a fine powder pile, the outer wall of the lower cone cover is fixedly connected with a taking pipe, the outer wall of the taking pipe is movably sleeved with a sealing cover, the bottom of the lower cone cover is connected with a fixed cover, the outer wall of the fixed cover is provided with a fine powder feeding trough, the bottom of the lower cone cover is installed with a fine powder port, the outer wall of the fine powder port is provided with a circular cavity, the inner wall of the fine powder port is sleeved with a movable cover, and the outer wall of the movable cover is connected with a hand rod.

[0005] Preferably, the main air inlet is connected to an external fan, and the fan conveys wind power into the inner cavity of the powder selection machine body through the main air inlet.

[0006] Preferably, the large rotor blade is arranged above the small rotor blade, and the circumferential angle of the large rotor blade is larger.

[0007] Preferably, the inner wall of the rubber ring is adapted to the outer wall of the rotating discharge barrel in size, and the rubber ring is arranged between the large rotating wheel and the fixed barrel.

[0008] Preferably, the inner cavity of the drainage cavity is communicated with the inner cavity of the fixed cylinder, and the drainage cavity is communicated with the inner cavity of the powder selection machine body through the fixed cylinder.

[0009] Preferably, the unloading chamber is communicated with the inner cavity of the fine powder pile, and the fine powder is precipitated in the inner cavity of the fine powder pile.

[0010] Preferably, the taking pipe is communicated with the inner cavity of the fine powder pile, and the taking pipe is opened on the side of the outer wall of the lower cone cover away from the powder classifier body.

[0011] Preferably, the fine powder discharge chute passes through the outer wall of the fixed cover and the outer wall of the movable cover, and the flow rate is maximum when the upper and lower notches of the fixed cover and the movable cover are aligned.

[0012] Preferably, the inner wall of the circular cavity is movably connected to the outer wall of the movable cover, and the notch of the circular cavity on the outer wall of the fine powder port is 15° to the left and right.

[0013] Preferably, the top of the circular cover is connected to a main exhaust port, and the two circular covers are connected to the same main exhaust port.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention, by providing a discharge hood, a discharge cavity, a lower cone hood, a main exhaust port and other structures, enables when the spiral rising airflow in the device carries fine powder into the inner cavity of the discharge hood, the discharge hood is used to eliminate the spiral force of the spiral airflow, and the fine powder is accumulated to form a fine powder pile, and the fine powder pile is blocked between the lower cone hood and the fine powder port, and then the air is discharged from the top of the device through the main exhaust port, so as to prevent the air from flowing downwards with the fine powder, and then when the fine powder is discharged from the device, the air will cause the fine powder to be lifted again, so as to prevent the subsequent collection and transportation of the fine powder.

[0016] 2. The present invention provides a hand lever, a movable cover, a fixed cover, a fine powder discharge trough and other structures, so that when the movable cover on the device is manually controlled to rotate 15° to the left or right, the fine powder discharge troughs penetrating the inner and outer walls of the movable cover and the fixed cover are gradually misaligned and overlapped, so that the accumulated fine powder is gradually transported downward through the fine powder discharge trough. In the process of the fine powder being transported downward through the fine powder discharge trough, the vibration force generated by the high-speed rotating rotor of the device is used to prevent the fine powder from agglomerating and clogging at the fine powder discharge trough.

[0017] 3. The present invention provides structures such as a taking pipe, a cover, a fine powder pile, and a fine powder discharge chute, so that when the fine powder discharge chute on the device is closed or opened slightly with an upper and lower misalignment, the fine powder pile formed by the accumulation is used to submerge the connection between the taking pipe and the lower cone cover, and after the cover is manually opened, the staff can manually take a portion of the fine powder in the inner cavity of the taking pipe for observation, thereby understanding the discharge status of the fine powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional cross-sectional structure of the present invention;

[0019] Figure 2It is a schematic diagram of the three-dimensional structure of the present invention from another viewing angle;

[0020] Figure 3 It is a schematic diagram of a three-dimensional cross-sectional structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the rotor blade structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the flow discharge cover of the present invention;

[0023] Figure 6 This is a schematic diagram of the fine powder pile structure of the present invention;

[0024] Figure 7 It is a schematic diagram of the structure of the fine powder feeding trough of the present invention.

[0025] In the figure: 1. Main body of powder selector; 2. Main air inlet; 3. Lower cone of powder selector; 4. Coarse powder outlet; 5. Fixed frame; 6. Rotating motor; 7. Small rotating wheel; 8. Belt; 9. Large rotating wheel; 10. Fixed cylinder; 11. Rubber ring; 12. Rotating discharge cylinder; 13. Feeding pipe; 14. Movable groove; 15. Large disc; 16. Large rotating blade; 17. Middle disc; 18. Upper connecting rod; 19. Spacer; 20. Classifying sheet; 21. Lower connecting rod; 22, small disc; 23, small rotating blade; 24, blocking head; 25, air flow slot; 26, drainage tube; 27, drainage chamber; 28, round cover; 29, flow discharge cover; 30, flow discharge chamber; 31, lower cone cover; 32, fine powder pile; 33, access pipeline; 34, sealing cover; 35, fixed cover; 36, fine powder discharge trough; 37, fine powder port; 38, round chamber; 39, movable cover; 40, hand lever; 41, main exhaust port. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-7A feeding mechanism of an ultrafine rotor powder classifier comprises: a powder classifier body 1, the outer wall of the powder classifier body 1 is connected with a total air inlet 2, the bottom of the powder classifier body 1 is connected with a powder classifier lower cone 3, the bottom of the powder classifier lower cone 3 is provided with a coarse powder port 4, the top of the powder classifier body 1 is fixedly connected with a fixing frame 5, the top of the fixing frame 5 is installed with a rotating motor 6, the bottom of the rotating motor 6 is movably connected with a small rotating wheel 7, the outer wall of the small rotating wheel 7 is sleeved with a belt 8, the inner wall of the belt 8 is sleeved with a large rotating wheel 9, the top of the powder classifier body 1 is connected with a fixed drum 10, a rubber ring 11 is provided on the top of the fixed cylinder 10, a rotating discharge cylinder 12 is sleeved on the inner wall of the fixed cylinder 10, a feeding pipe 13 is provided on the top of the rotating discharge cylinder 12, a movable groove 14 is provided on the inner wall of the powder classifier body 1, a large disc 15 is sleeved on the inner wall of the movable groove 14, a large rotating blade 16 is connected to the bottom of the large disc 15, a middle disc 17 is connected to the bottom of the large rotating blade 16, an upper connecting rod 18 is connected to the bottom of the middle disc 17, a partition disc 19 is connected to the end of the upper connecting rod 18 away from the middle disc 17, and a grading sheet is connected to the outer wall of the partition disc 19 20, the bottom of the partition plate 19 is connected to a lower connecting rod 21, the bottom of the lower connecting rod 21 is connected to a small disc 22, the bottom of the small disc 22 is connected to a small rotating blade 23, the bottom of the small rotating blade 23 is connected to a blocking head 24, the outer wall of the fixed cylinder 10 is provided with an air flow slot 25, the top of the powder selection machine body 1 is provided with a drainage pipe 26, the inner cavity of the drainage pipe 26 is provided with a drainage cavity 27, the end of the drainage pipe 26 away from the powder selection machine body 1 is connected to a round cover 28, the bottom of the round cover 28 is fixedly connected to a discharge cover 29, and the inner cavity of the discharge cover 29 is provided with a discharge cavity 30, the bottom of the discharge cover 29 is fixedly connected with a lower cone cover 31, the inner cavity of the lower cone cover 31 is provided with a fine powder pile 32, the outer wall of the lower cone cover 31 is fixedly connected with a taking pipe 33, the outer wall of the taking pipe 33 is movably sleeved with a sealing cover 34, the bottom of the lower cone cover 31 is connected with a fixed cover 35, the outer wall of the fixed cover 35 is provided with a fine powder discharge trough 36, the bottom of the lower cone cover 31 is installed with a fine powder port 37, the outer wall of the fine powder port 37 is provided with a circular cavity 38, the inner wall of the fine powder port 37 is sleeved with a movable cover 39, and the outer wall of the movable cover 39 is connected with a hand lever 40.

[0028] Among them; the main air inlet 2 is connected to the external fan, and the fan conveys wind into the inner cavity of the powder classifier body 1 through the main air inlet 2, and is connected to the external fan through the main air inlet 2 on the device, so that when the fan outside the device conveys wind into the inner cavity of the powder classifier body 1, the main air inlet 2 is set on one side of the powder classifier body 1 to make the wind spirally rotate in the inner cavity of the powder classifier body 1, and the main exhaust port 41 is used at the top of the device to guide the wind to spiral upward and blow the powder material while spiraling.

[0029] Among them; the large rotor blade 16 is arranged above the small rotor blade 23, and the circumferential angle of the large rotor blade 16 is larger. The large rotor blade 16 on the device is arranged above the small rotor blade 23, so that the middle disc 17 on the device is fixedly connected with the rotating discharge barrel 12, and the small rotating wheel 7, belt 8, large rotating wheel 9 are used to cooperate with the rotating motor 6 to drive the rotating discharge barrel 12, so that the middle disc 17 and the large rotor blade 16, small rotor blade 23 and other structures on the device rotate synchronously, and then during high-speed rotation, the large rotor blade 16 and the small rotor blade 23 are used to spirally repel particulate materials in the air, so that larger particles are blocked outside, and fine powder materials enter the inner cavity of the large rotor blade 16 with the gas and are transported upward.

[0030] Among them; the inner wall of the rubber ring 11 is adapted to the outer wall of the rotating discharge barrel 12, and the rubber ring 11 is arranged between the large rotating wheel 9 and the fixed barrel 10. The inner wall of the rubber ring 11 on the device is adapted to the outer wall of the rotating discharge barrel 12, so that the rubber ring 11 on the device is sleeved on the rotating discharge barrel 12 synchronously without interfering with the rotation of the rotating discharge barrel 12, and the rubber ring 11 is used between the large rotating wheel 9 and the fixed barrel 10, so that when the large rotating wheel 9 on the device enters the rotating state, it does not affect the fixed state of the fixed barrel 10, and does not generate friction on the outer wall of the fixed barrel 10;

[0031] The rotary discharge barrel 12 and the feed pipe 13 are in a disconnected state, and the feed pipe 13 is disposed above the rotary discharge barrel 12 , and the feed pipe 13 and the rotary discharge barrel 12 have the same caliber.

[0032] Among them, the inner cavity of the drainage chamber 27 is connected with the inner cavity of the fixed cylinder 10, and the drainage chamber 27 is connected with the inner cavity of the powder selector body 1 through the fixed cylinder 10. The inner cavity of the drainage chamber 27 on the device is connected with the inner cavity of the fixed cylinder 10, so that when the inner cavity of the fixed cylinder 10 on the device receives the fine powder carried in the air at the inner cavity of the large rotor blade 16, the fine powder passes through the inner cavity of the powder selector body 1, the large rotor blade 16 and the fixed cylinder 10 into the inner cavity of the drainage chamber 27, so that the fine powder is guided and transported by the airflow and the device structure.

[0033] Among them, the unloading chamber 30 is connected with the inner cavity of the fine powder pile 32, and the fine powder is precipitated in the inner cavity of the fine powder pile 32. The unloading chamber 30 on the device is connected with the inner cavity of the fine powder pile 32, so that the air delivered by the drainage chamber 27 on the device is spirally unloaded in the inner cavity of the unloading chamber 30, and the fine powder is gradually accumulated into the fine powder pile 32, so that the fine powder in the device is precipitated in the inner cavity of the lower cone cover 31, and the space between the lower cone cover 31 and the fine powder port 37 is blocked.

[0034] Among them; the access pipe 33 is connected with the inner cavity of the fine powder pile 32, and the access pipe 33 is opened on the side of the outer wall of the lower cone cover 31 away from the powder classifier body 1. The access pipe 33 on the device is connected with the inner cavity of the fine powder pile 32, so that when the staff checks the state of the fine powder, the arm extends into the inner cavity of the access pipe 33 and takes the fine powder at the fine powder pile 32, so that the staff can observe the fine powder, and the access pipe 33 is set on both sides of the device, which does not affect the staff's taking.

[0035] Among them; the fine powder discharge chute 36 penetrates the outer wall of the fixed cover 35 and the outer wall of the movable cover 39, and the flow rate is maximum when the upper and lower notches of the fixed cover 35 and the movable cover 39 are aligned. The fine powder discharge chute 36 on the device penetrates the outer wall of the fixed cover 35 and the outer wall of the movable cover 39, so that the fixed cover 35 on the device remains stationary, and when the movable cover 39 is rotated, the fine powder discharge chute 36 started by the fixed cover 35 and the movable cover 39 is misaligned, thereby preventing fine powder from being discharged from the fine powder discharge chute 36, and when the movable cover 39 is manually rotated, the notch gradually overlaps with the fixed cover 35, so that the fine powder can be discharged downward from the fine powder discharge chute 36.

[0036] Among them, the inner wall of the circular cavity 38 is movably connected with the outer wall of the movable cover 39, and the notch of the circular cavity 38 on the outer wall of the fine powder opening 37 is 15° to the left and right. By movably connecting the inner wall of the circular cavity 38 on the device with the outer wall of the movable cover 39, the movable cover 39 on the device is rotated 15° to the left or right under the action of the hand lever 40, so that the fine powder discharge trough 36 on the outer wall of the movable cover 39 and the fixed cover 35 can be dislocated, and the circular cavity 38 is provided with a circular accommodating notch and a rotating notch of a certain angle for the movable cover 39.

[0037] Among them, the top of the circular cover 28 is connected to a main exhaust port 41, and the two circular covers 28 are connected to the same main exhaust port 41. By connecting the two circular covers 28 to the same main exhaust port 41, the fine powder in the inner cavity of the circular cover 28 and the discharge cover 29 on the device is precipitated, and the air is discharged upward through the circular cover 28, and the two circular covers 28 are connected to the main exhaust port 41 for exhaust at the same time, so that the circular covers 28 on both sides can perform exhaust work at the same time.

[0038] The working principle is as follows: first, the material is conveyed into the device through the feed pipe 13 on the device through the rotating discharge barrel 12, and at the same time, the airflow is conveyed into the device from the main air inlet 2, and the airflow is spirally ascended upward. When ascending, the airflow carries fine powder and passes through the screening of the large rotor blade 16 and the small rotor blade 23, and then continues to rise, and finally the airflow carries fine powder into the inner cavity of the discharge cover 29, and the discharge cover 29 is used to eliminate the rotational force of the airflow, and the fine powder is deposited downward to form a fine powder pile 32, so that the staff can grab the fine powder at the access pipe 33 for observation and understand the powder discharge state, and then the air circulation at the upper and lower parts of the fixed cover 35 is isolated through the fine powder pile 32, so that the air is finally discharged through the main exhaust port 41, and the fine powder pile 32 is conveyed downward to the outside of the device through the fine powder discharge chute 36 through the rotating opening and closing effect of the movable cover 39, and at the same time, the vibration force of the high-speed rotation of the rotor in the device is used to prevent the fine powder from agglomerating or clogging during transportation, so that the fine powder will not be passively lifted up by the airflow when it is discharged downward from the fine powder port 37.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding mechanism of an ultrafine rotor powder concentrator, characterized in that: include: A powder classifier body (1), wherein the outer wall of the powder classifier body (1) is connected to a total air inlet (2), the bottom of the powder classifier body (1) is connected to a powder classifier lower cone (3), the bottom of the powder classifier lower cone (3) is provided with a coarse powder outlet (4), the top of the powder classifier body (1) is fixedly connected to a fixing frame (5), a rotating motor (6) is installed on the top of the fixing frame (5), a small rotating wheel (7) is movably connected to the bottom of the rotating motor (6), a belt (8) is sleeved on the outer wall of the small rotating wheel (7), a large rotating wheel (9) is sleeved on the inner wall of the belt (8), a fixing cylinder (10) is connected to the top of the powder classifier body (1), and a rubber The fixing cylinder (10) is provided with a rubber ring (11), the inner wall of the fixing cylinder (10) is sleeved with a rotating discharge cylinder (12), the top of the rotating discharge cylinder (12) is provided with a feeding pipe (13), the inner wall of the powder classifier body (1) is provided with a movable groove (14), the inner wall of the movable groove (14) is sleeved with a large disc (15), the bottom of the large disc (15) is connected with a large rotating blade (16), the bottom of the large rotating blade (16) is connected with a middle disc (17), the bottom of the middle disc (17) is connected with an upper connecting rod (18), the end of the upper connecting rod (18) away from the middle disc (17) is connected with a partition disc (19), the outer wall of the partition disc (19) is connected with a grading sheet (20), the partition disc (19) The bottom of the fixed cylinder (10) is connected to a lower connecting rod (21), the bottom of the lower connecting rod (21) is connected to a small disc (22), the bottom of the small disc (22) is connected to a small rotating blade (23), the bottom of the small rotating blade (23) is connected to a blocking head (24), the outer wall of the fixed cylinder (10) is provided with an air flow slot (25), the top of the powder classifier body (1) is provided with a drainage pipe (26), the inner cavity of the drainage pipe (26) is provided with a drainage cavity (27), the end of the drainage pipe (26) away from the powder classifier body (1) is connected to a round cover (28), the bottom of the round cover (28) is fixedly connected to a discharge cover (29), the inner cavity of the discharge cover (29) is provided with a discharge cavity (30), The bottom of the discharge cover (29) is fixedly connected to a lower cone cover (31), the inner cavity of the lower cone cover (31) is provided with a fine powder pile (32), the outer wall of the lower cone cover (31) is fixedly connected to a taking pipe (33), the outer wall of the taking pipe (33) is movably sleeved with a sealing cover (34), the bottom of the lower cone cover (31) is connected to a fixed cover (35), the outer wall of the fixed cover (35) is provided with a fine powder discharge trough (36), the bottom of the lower cone cover (31) is installed with a fine powder port (37), the outer wall of the fine powder port (37) is provided with a circular cavity (38), the inner wall of the fine powder port (37) is sleeved with a movable cover (39), and the outer wall of the movable cover (39) is connected with a hand lever (40).

2. The feeding mechanism of the ultrafine rotor powder concentrator according to claim 1 is characterized in that: The main air inlet (2) is connected to an external fan, and the fan conveys wind power into the inner cavity of the powder selection machine body (1) through the main air inlet (2).

3. The feeding mechanism of the ultrafine rotor powder concentrator according to claim 1 is characterized in that: The large rotating blade (16) is arranged above the small rotating blade (23), and the circumferential angle of the large rotating blade (16) is larger.

4. The feeding mechanism of the ultrafine rotor powder concentrator according to claim 1 is characterized in that: The inner wall of the rubber ring (11) is adapted in size to the outer wall of the rotating discharge barrel (12), and the rubber ring (11) is arranged between the large rotating wheel (9) and the fixed barrel (10).

5. The feeding mechanism of the ultrafine rotor powder concentrator according to claim 1, characterized in that: The inner cavity of the drainage cavity (27) is in communication with the inner cavity of the fixed cylinder (10), and the drainage cavity (27) is in communication with the inner cavity of the powder selection machine body (1) through the fixed cylinder (10).

6. The feeding mechanism of the ultrafine rotor powder concentrator according to claim 1, characterized in that: The unloading chamber (30) is communicated with the inner chamber of the fine powder pile (32), and the fine powder is deposited in the inner chamber of the fine powder pile (32).

7. The feeding mechanism of the ultrafine rotor powder concentrator according to claim 1, characterized in that: The taking pipe (33) is communicated with the inner cavity of the fine powder pile (32), and the taking pipe (33) is arranged on a side of the outer wall of the lower cone cover (31) away from the powder classifier body (1).

8. The feeding mechanism of the ultrafine rotor powder concentrator according to claim 1, characterized in that: The fine powder discharge chute (36) penetrates the outer wall of the fixed cover (35) and the outer wall of the movable cover (39), and the flow rate is at a maximum value when the upper and lower notches of the fixed cover (35) and the movable cover (39) are aligned.

9. The feeding mechanism of the ultrafine rotor powder concentrator according to claim 1, characterized in that: The inner wall of the circular cavity (38) is movably sleeved with the outer wall of the movable cover (39), and the notch of the circular cavity (38) on the outer wall of the fine powder opening (37) is 15° to the left and right.

10. The feeding mechanism of the ultrafine rotor powder concentrator according to claim 1, characterized in that: The top of the circular cover (28) is connected to a main exhaust port (41), and the two circular covers (28) are connected to the same main exhaust port (41).

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