An airflow compound powder classifier

Abstract

The present invention relates to the technical field of powder selection machines, and specifically to an airflow compound powder selection machine, which mainly improves the quality of powder selection work through the coordinated use of a first auxiliary mechanism and a second auxiliary mechanism for powder selection, and has a positive effect on improving the efficiency of powder selection work; in the first auxiliary mechanism for powder selection, an auxiliary baffle is arranged at the bottom end of the inner cavity of a separation cylinder, and a material separation slot is arranged at the side position of the cone bottom, so as to avoid direct discharge of powder from the separation cylinder as much as possible, so that the powder is discharged after being separated by blowing; further, the powder can be further dispersed by the breaking-up auxiliary strip in the second auxiliary mechanism for powder selection to avoid material condensation, which is helpful to improve the quality of powder separation work; by arranging a movable carrier and arranging a cleaning cotton cone on one side of the movable carrier, a cleaning effect is performed on the screening net on the separation cylinder to avoid blockage, thereby ensuring the stable progress of the powder selection work and ensuring the overall separation work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of powder classifiers, in particular to an airflow compound powder classifier. Background Art

[0002] Powder classifier is one of the key equipment in the powder making system. It uses the different stress conditions of particles with different particle sizes in the air medium to classify powder particles. Its performance directly affects the safety and economic operation of the entire system. The function of powder classifier is suitable for the grinding and ultrafine grinding of materials in cement, metallurgical slag, materials, chemical industry and other industries. Most fields need to classify the particle size of materials after grinding, that is, powder selection, to separate materials that meet the particle size requirements. The material particle size classification is completed by the powder classifier.

[0003] The existing patent document with announcement number CN217165339U discloses a multi-stage airflow composite powder classifier, which is convenient for blowing up the raw materials poured into the box body through the first air inlet pipe by setting a first air inlet pipe, a second air inlet pipe, a filter plate, a collecting pipe, a material pipe and a collecting box, so as to screen the large particles of impurities in the raw materials; in the scheme, multiple layers of filter plates are set, and after sorting, the materials or impurities remaining on the filter plates cannot be properly cleaned, and the filter plates are easily blocked during long-term operation, which has a negative impact on the sorting process.

[0004] Furthermore, the patent document with announcement number CN217313944U discloses a high-speed and high-fine composite powder classifier, in which raw materials enter the interior of the separation cylinder through a feed pipe, and the fan and transmission assembly are started. When the transmission assembly is working, it will drive the separation cylinder to rotate, and centrifugal force will be generated when the separation cylinder rotates. Under the action of centrifugal force, the fine powder will pass through the screening net, and the airflow generated by the fan when working will be input into the air duct, and then the airflow will enter the separation cylinder through the ventilation holes. The gravity of the coarse powder is greater than the rising force of the airflow, and the coarse powder will be discharged through the discharge pipe, and the fine powder will enter the cyclone under the joint action of centrifugal force and airflow; the feed pipe and the discharge pipe in the scheme are arranged opposite to each other, and the coarse powder is not affected by the airflow and is directly discharged from the discharge pipe. In this process, the coarse powder will be directly discharged from the discharge pipe with the fine powder, which affects the quality of its powder selection work.

[0005] The composite powder classifier in the prior art lacks a suitable sorting auxiliary mechanism to meet its actual working requirements when performing powder selection work, and needs to be improved and optimized.

[0006] To this end, the present invention proposes an airflow compound powder classifier for solving the above problems. Summary of the invention

[0007] The object of the present invention is to provide an airflow compound powder classifier to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an airflow compound powder classifier, comprising a powder classifier body, a feed pipe, a bucket-shaped bottom, a discharge port, a cyclone barrel, a separation barrel, a first powder selection auxiliary mechanism and a second powder selection auxiliary mechanism; a feed pipe is arranged on the top of the powder classifier body, the bottom end of the powder classifier body is arranged as a bucket-shaped bottom, and the bottom end of the bucket-shaped bottom is arranged with a discharge port, the feed pipe and the powder classifier body are connected by a first rotating joint, the cyclone barrel is symmetrically arranged at the side position of the powder classifier body, and the cyclone barrel is connected with the powder classifier body, one end of the air supply pipe is arranged in the powder classifier body, and the end of the air supply pipe is connected with the separation barrel, the feed pipe is connected with the gear driving mechanism, a screening net is arranged at the top side position of the separation barrel, the separation barrel is connected with the first powder selection auxiliary mechanism, and the second powder selection auxiliary mechanism is arranged in the separation barrel.

[0009] Preferably, the first auxiliary mechanism for powder selection includes a cone bottom, a material distribution slot, a support bar, a second rotating joint, an auxiliary baffle body, an auxiliary through hole, a support rod, an air supply branch pipe, an annular conveying pipe, and a blowing pipe; the cone bottom is arranged at the side position of the material distribution slot at the cone bottom, and the cone bottom is fixedly connected to the inner wall of the separation cylinder through the support bar, the second rotating joint is arranged in the cone bottom, and the second rotating joint is connected to the end of the air supply pipe, a sleeve through groove is arranged in the auxiliary baffle body, the auxiliary through holes are equidistantly arranged in the auxiliary baffle body, and support rods are equidistantly fixed on the bottom side of the auxiliary baffle body, the support rods are fixedly connected to the side wall of the cone bottom by screws, one end of the air supply branch pipe is connected to the air supply pipe, the other end of the air supply branch pipe is connected to the annular conveying pipe, the inner wall of the annular conveying pipe is equidistantly connected to the blowing pipe, and one end of the blowing pipe is connected to the bucket-shaped bottom.

[0010] Preferably, the two sides of the auxiliary baffle are set to be conical, and the auxiliary baffle corresponds to the setting position of the pipe mouth of the air duct and is set in the same number of groups; the auxiliary baffle corresponds to the setting position of the pipe mouth of the feed pipe and is set in the same number of groups.

[0011] Preferably, the air supply branch pipes are equidistantly arranged in a ring shape on the side wall of the bucket-shaped bottom.

[0012] Preferably, the second auxiliary mechanism for powder selection includes a connecting rod, a supporting leg, a docking block, a positioning slot, a connecting head, a docking slot, a threaded hole, a fastening screw, a load-bearing rod, a scattering auxiliary strip, a load-bearing strip, a connecting body, a movable carrier, a placement cavity, an auxiliary spring, a cleaning cotton cone, a fixed ring sheet, a movable ring, a connecting spring, and cleaning auxiliary soft hair; the supporting legs are equidistantly fixed at the side positions of the bottom end of the connecting rod, the supporting legs are fixedly connected to the side walls of the cone bottom by screws, the connecting rod is adapted to be plugged in with the sleeve groove in the auxiliary block body, the top of the connecting rod is fixedly provided with a docking block, both sides of the docking block are provided with positioning slots, the connecting head is fixedly provided at one end of the load-bearing rod, and a docking slot is provided in the connecting head, threaded holes are symmetrically provided in the connecting head, and the connecting head and the docking block are fastened by fastening screws The connection is fixed, one end of the fastening screw is adapted to be engaged with the positioning slot, the outer side wall of the load-bearing rod is equidistantly fixed with a breaking up auxiliary strip, the top side of the load-bearing rod is symmetrically fixed with a load-bearing strip, the other end of the load-bearing strip is fixed with a connector, one side of the connector is provided with a placement cavity, a movable carrier is provided in the placement cavity, one side is equidistantly fixed with an auxiliary spring, the other end of the auxiliary spring is fixed in the placement cavity, a cleaning cotton cone is equidistantly provided on the other side of the movable carrier, the outer side wall of the cleaning cotton cone is fixed with a fixed ring piece, the movable ring is movably sleeved on the cleaning cotton cone, one side of the fixed ring piece is symmetrically fixed with a connecting spring, the other end of the connecting spring is fixed on the side wall of the movable ring, and the cone tip side of the cleaning cotton cone is provided with cleaning auxiliary soft bristles.

[0013] Preferably, the docking slot and the docking plug block have corresponding setting positions and the same number of setting groups, and the two are adaptably plugged in.

[0014] Preferably, the number of groups of the connectors and the supporting bars is the same, with two groups in total, and the connectors and the screening nets are arranged at corresponding positions.

[0015] Preferably, the cleaning cotton cone corresponds to the setting position of the mesh holes on the screening net.

[0016] Preferably, the movable carrier and the connector have corresponding arrangement positions and the same number of arrangement groups, and the movable carrier is movably arranged in a placement cavity on the connector.

[0017] Preferably, the cone tip diameter of the cleaning cotton cone is smaller than the mesh diameter of the screening net, and the ring diameter of the movable ring is larger than the mesh diameter of the screening net.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The airflow compound powder classifier designed by the present invention mainly improves the quality of its powder selection work through the coordinated use of the first auxiliary mechanism and the second auxiliary mechanism for powder selection, which has a positive effect on improving the efficiency of its powder selection work; in the first auxiliary mechanism for powder selection, an auxiliary baffle is set at the bottom end of the inner cavity of the separation cylinder, and a material separation groove is set at the side position of the cone bottom, so as to avoid the powder from being discharged directly from the separation cylinder as much as possible, so that the powder is discharged after being separated by blowing; further, the powder can be further dispersed by the breaking up auxiliary strip in the second auxiliary mechanism for powder selection to avoid material condensation, which is helpful to improve the quality of its powder separation work; by setting a movable carrier and a cleaning cotton cone on one side of the movable carrier, a cleaning effect is performed on the screening net on the separation cylinder to avoid blockage, thereby ensuring the stable progress of its powder selection work and ensuring the overall efficiency of the separation work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure connection of the powder selection machine device of the present invention;

[0021] Figure 2 It is a partial top view of the internal structure connection of the powder selector device of the present invention;

[0022] Figure 3 For the present invention Figure 2 A partial enlarged schematic diagram of the structure connection;

[0023] Figure 4 It is a bottom view of the internal structure connection part of the powder selector device of the present invention;

[0024] Figure 5 For the present invention Figure 4 A partial enlarged schematic diagram of the structure connection;

[0025] Figure 6 This is a schematic diagram of the connection of the auxiliary baffle structure in the first auxiliary mechanism for powder selection of the present invention;

[0026] Figure 7 This is a schematic diagram of the connection of the bearing rod structure in the second auxiliary mechanism for powder selection of the present invention;

[0027] Figure 8 For the present invention Figure 7 A partial enlarged schematic diagram of the structure connection;

[0028] Fig. 9 It is a schematic diagram of the connection between the connector and the movable carrier structure of the present invention;

[0029] Fig.10 It is a schematic diagram of the connection structure of the cleaning cotton cone of the present invention.

[0030] In the figure: powder selector body 1, feed pipe 2, bucket bottom 3, discharge port 4, cyclone 5, first rotary joint 6, air pipe 7, gear drive mechanism 8, separation cylinder 9, screening net 10, cone bottom 1101, material distribution slot 1102, support bar 1103, second rotary joint 1104, auxiliary block 1105, auxiliary through hole 1106, support rod 1107, air branch pipe 1108, annular conveying pipe 1109, blowing pipe 1110, connecting rod 1201, support leg 1 202, docking block 1203, positioning slot 1204, connector 1205, docking slot 1206, threaded hole 1207, fastening screw 1208, load-bearing rod 1209, breaking up auxiliary strip 1210, load-bearing strip 1211, connector 1212, movable carrier 1213, placement cavity 1214, auxiliary spring 1215, cleaning cotton cone 1216, fixed ring 1217, movable ferrule 1218, connecting spring 1219, cleaning auxiliary soft bristles 1220. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention are described clearly and completely below. The embodiments of the present invention and all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0032] Example 1: Please refer to Figure 1-Figure 10, an airflow composite powder classifier, comprising a powder classifier body 1, a feed pipe 2, a bucket-shaped bottom 3, a discharge port 4, a cyclone 5, a separation barrel 9, a first powder selection auxiliary mechanism and a second powder selection auxiliary mechanism; a feed pipe 2 is arranged on the top of the powder classifier body 1, the bottom end of the powder classifier body 1 is arranged as a bucket-shaped bottom 3, the bottom end of the bucket-shaped bottom 3 is arranged with a discharge port 4, the feed pipe 2 is connected to the powder classifier body 1 through a first rotary joint 6, the cyclone 5 is symmetrically arranged at the side position of the powder classifier body 1, and the cyclone 5 is connected to the powder classifier body 1, one end of the air delivery pipe 7 is arranged in the powder classifier body 1, and the end of the air delivery pipe 7 is connected to the separation barrel 9, the feed pipe 2 is connected to the gear drive mechanism 8, a screening net 10 is arranged on the top side position of the separation barrel 9, the separation barrel 9 is connected to the first powder selection auxiliary mechanism, and the second powder selection auxiliary mechanism is arranged in the separation barrel 9; the present invention relates to a powder classifier comprising a powder separator, ... The invention mainly improves the quality of powder selection work through the coordinated use of the first auxiliary mechanism and the second auxiliary mechanism for powder selection, which has a positive effect on improving the efficiency of powder selection work; in the first auxiliary mechanism for powder selection, an auxiliary baffle 1105 is set at the bottom end of the inner cavity of the separation cylinder 9, and a material separation groove 1102 is set at the side position of the cone bottom 1101, so as to avoid the powder from being discharged directly from the separation cylinder 9 as much as possible, so that the powder is discharged after being separated by air blowing; further, the powder can be further dispersed by the breaking up auxiliary strip 1210 in the second auxiliary mechanism for powder selection to avoid material condensation, which is helpful for the powder sorting work; by setting a movable carrier 1213 and a cleaning cotton cone 1216 on one side of the movable carrier 1213, a cleaning effect is performed on the screening net 10 on the separation cylinder 9 to avoid blockage, thereby ensuring the stable progress of the powder selection work.

[0033] Example 2: Based on Example 1, please refer to Figure 2-Figure 4 and Figure 6; The first auxiliary mechanism for powder selection here includes a cone bottom 1101, a material distribution slot 1102, a support bar 1103, a second rotary joint 1104, an auxiliary baffle 1105, an auxiliary through hole 1106, a support rod 1107, an air supply branch pipe 1108, an annular conveying pipe 1109, and an air blowing pipe 1110; the cone bottom 1101 is arranged at the side of the material distribution slot 1102, and the cone bottom 1101 is fixedly connected to the inner side wall of the separation cylinder 9 through the support bar 1103, the second rotary joint 1104 is arranged in the cone bottom 1101, and the second rotary joint 1104 is connected to the end of the air supply pipe 7, a sleeve groove is arranged in the auxiliary baffle 1105, and the auxiliary through holes 1106 are equidistantly arranged in the auxiliary baffle 1105, and the auxiliary baffle Support rods 1107 are fixedly arranged at equal intervals on the bottom side of 1105, and the support rods 1107 are fixedly connected to the side wall of the cone bottom 1101 by screws, one end of the air supply branch pipe 1108 is connected to the air supply pipe 7, and the other end of the air supply branch pipe 1108 is connected to the annular conveying pipe 1109, and the inner wall of the annular conveying pipe 1109 is connected to the blowing pipe 1110 at equal intervals, and one end of the blowing pipe 1110 is connected to the bucket-shaped bottom 3; the two sides of the auxiliary baffle 1105 here are arranged in a cone shape, and the auxiliary baffle 1105 corresponds to the pipe opening setting position of the air supply pipe 7 and the number of setting groups is the same; the auxiliary baffle 1105 corresponds to the pipe opening setting position of the feed pipe 2 and the number of setting groups is the same; the air supply branch pipe 1108 here is arranged in a ring shape on the side wall of the bucket-shaped bottom 3 at equal intervals.

[0034] In this embodiment, the powder enters the separation cylinder 9 from the feed pipe 2 and is transported by air through the air supply pipe 7. An auxiliary baffle 1105 is provided at the bottom end of the inner cavity of the separation cylinder 9, and a dividing slot 1102 is provided on the side of the conical bottom 1101 to avoid the powder being discharged directly from the separation cylinder 9 as much as possible, so that the powder is discharged after being separated by air. The coarse powder discharged from the dividing slot 1102 is sorted again by air output from the air supply branch pipe 1108, and the fine powder in the coarse powder is raised by air blowing, and then enters the cyclone 5.

[0035] Example 3: Based on Example 2, please refer to Figure 2-Figure 5 and Figure 7-10; The second auxiliary mechanism for powder selection here includes a connecting rod 1201, a supporting leg 1202, a docking block 1203, a positioning slot 1204, a connecting head 1205, a docking slot 1206, a threaded hole 1207, a fastening screw 1208, a bearing rod 1209, a scattering auxiliary strip 1210, a bearing strip 1211, a connecting body 1212, a movable carrier 1213, a placement cavity 1214, an auxiliary spring 1215, a cleaning cotton cone 1216, a fixed ring sheet 1217, a movable ring 1218, a connecting spring 1219, and cleaning auxiliary soft hair 1220; the supporting legs 1202 are equidistantly fixedly arranged at the bottom side of the connecting rod 1201, and the supporting legs 12 02 is fixedly connected to the side wall of the cone bottom 1101 by screws, the connecting rod 1201 is adapted to be plugged into the sleeve groove in the auxiliary blocking body 1105, a docking block 1203 is fixedly provided on the top of the connecting rod 1201, and positioning slots 1204 are provided on both sides of the docking block 1203, a connecting head 1205 is fixedly provided at one end of the load-bearing rod 1209, and a docking slot 1206 is provided in the connecting head 1205, threaded holes 1207 are symmetrically provided in the connecting head 1205, and the connecting head 1205 and the docking block 1203 are connected and fixed by a fastening screw 1208, one end of the fastening screw 1208 is adapted to be plugged into the positioning slot 1204, and the load-bearing rod The outer wall of 1209 is equidistantly fixed with a breaking auxiliary strip 1210, the top side of the bearing rod 1209 is symmetrically fixed with a bearing strip 1211, the other end of the bearing strip 1211 is fixed with a connector 1212, one side of the connector 1212 is provided with a placement cavity 1214, a movable carrier 1213 is arranged in the placement cavity 1214, an auxiliary spring 1215 is equidistantly fixed on one side, the other end of the auxiliary spring 1215 is fixedly arranged in the placement cavity 1214, a cleaning cotton cone 1216 is equidistantly arranged on the other side of the movable carrier 1213, the outer wall of the cleaning cotton cone 1216 is fixed with a fixed ring piece 1217, and a movable ring 1218 is provided on the movable sleeve A connecting spring 1219 is symmetrically fixed on one side of the fixed ring piece 1217 on the cleaning cotton cone 1216, and the other end of the connecting spring 1219 is fixed on the side wall of the movable ring 1218. A cleaning auxiliary soft bristle 1220 is arranged on the cone tip side of the cleaning cotton cone 1216; the docking slot 1206 here corresponds to the setting position of the docking plug block 1203, and the setting number of groups is the same, and the two are adapted to be plugged in; the connecting body 1212 here has the same setting number of groups as the supporting bar 1211, and there are two groups in total, and the connecting body 1212 corresponds to the setting position of the screening net 10; the cleaning cotton cone 1216 here corresponds to the setting position of the mesh on the screening net 10.

[0036] In this embodiment, a connector 1212 is provided at the end of the bearing bar 1211 and a movable carrier 1213 is provided in the connector 1212, and a cleaning cotton cone 1216 is provided on one side of the movable carrier 1213. The movable carrier 1213 and the connector 1212 are provided at corresponding positions and have the same number of groups, and the movable carrier 1213 is movably provided in a placement cavity 1214 on the connector 1212; the cone tip diameter of the cleaning cotton cone 1216 is smaller than the mesh diameter of the screening net 10, and the ring diameter of the movable ring 1218 is larger than the mesh diameter of the screening net 10. When the separation cylinder 9 rotates, the cleaning cotton cone 1216 can clean the screening net 10, and can also clean the material in the mesh on the screening net 10, so as to avoid the problem of material blocking the screening net 10 as much as possible; at the same time, a breaking up auxiliary strip 1210 is provided on the side of the bearing rod 1209, which can further break up the powder material to avoid material condensation, thereby facilitating the powder material sorting work.

[0037] Here, cleaning auxiliary soft bristles 1220 are arranged on the side of the cone tip of the cleaning cotton cone 1216 to further improve its cleaning effect. When the cleaning cotton cone 1216 enters into the mesh of the screening net 10, the opening of the mesh contacts with the movable ring 1218. The movable ring 1218 is arranged on the cleaning cotton cone 1216. At this time, the movable ring 1218 has an squeezing effect. The movable ring 1218 has an squeezing effect on the cleaning cotton cone 1216 to remove the material adhering to the cleaning cotton cone 1216 as much as possible.

[0038] 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. An airflow compound powder classifier, characterized in that: The invention comprises a powder selector body (1), a feed pipe (2), a bucket-shaped bottom (3), a discharge port (4), a cyclone (5), a separation cylinder (9), a first powder selection auxiliary mechanism and a second powder selection auxiliary mechanism; the top of the powder selector body (1) is provided with a feed pipe (2); the bottom end of the powder selector body (1) is provided with a bucket-shaped bottom (3); the bottom end of the bucket-shaped bottom (3) is provided with a discharge port (4); the feed pipe (2) is connected to the powder selector body (1) via a first rotating joint (6); the cyclone (5) is symmetrically arranged At the side of the powder selector body (1), the cyclone barrel (5) is connected to the powder selector body (1), one end of the air supply pipe (7) is arranged in the powder selector body (1), and the end of the air supply pipe (7) is connected to the separation barrel (9), the feed pipe (2) is connected to the gear drive mechanism (8), a screening net (10) is arranged at the top side of the separation barrel (9), the separation barrel (9) is connected to the first powder selection auxiliary mechanism, and the separation barrel (9) is provided with a second powder selection auxiliary mechanism; The first auxiliary mechanism for powder selection comprises a cone bottom (1101), a material distribution slot (1102), a support bar (1103), a second rotary joint (1104), an auxiliary blocking body (1105), an auxiliary through hole (1106), a support rod (1107), an air supply branch pipe (1108), an annular conveying pipe (1109), and an air blowing pipe (1110); the cone bottom (1101) is arranged at a side position of the cone bottom (1101), and the cone bottom (1101) is fixedly connected to the inner side wall of the separation cylinder (9) through the support bar (1103); the second rotary joint (1104) is arranged in the cone bottom (1101), and the second rotary joint (1104) is connected to the air supply pipe (1110). 7), the auxiliary blocking body (1105) is provided with a sleeve-connecting groove, the auxiliary through holes (1106) are equidistantly arranged in the auxiliary blocking body (1105), and the bottom side of the auxiliary blocking body (1105) is equidistantly fixed with support rods (1107), the support rods (1107) are fixedly connected to the side wall of the cone bottom (1101) by screws, one end of the air supply branch pipe (1108) is connected to the air supply pipe (7), the other end of the air supply branch pipe (1108) is connected to the annular conveying pipe (1109), the inner side wall of the annular conveying pipe (1109) is equidistantly connected with a blowing pipe (1110), and one end of the blowing pipe (1110) is connected to the bucket-shaped bottom (3); Both sides of the auxiliary baffle (1105) are arranged in a conical shape; the auxiliary baffle (1105) corresponds to the pipe opening of the air delivery pipe (7) at the same position and has the same number of sets; the auxiliary baffle (1105) corresponds to the pipe opening of the feed pipe (2) at the same position and has the same number of sets; The air delivery branch pipes (1108) are arranged in an annular shape at equal intervals on the side wall of the bucket-shaped bottom (3); The second auxiliary mechanism for powder selection comprises a connecting rod (1201), a supporting leg (1202), a docking plug block (1203), a positioning slot (1204), a connecting head (1205), a docking slot (1206), a threaded hole (1207), a fastening screw (1208), a bearing rod (1209), a scattering auxiliary strip (1210), a bearing strip (1211), a connecting body (1212), a movable carrier (1213), a placement cavity (1214), an auxiliary spring (1215), a cleaning cotton cone (1216), a fixed ring sheet (1217), a movable ferrule (1218), a connecting spring (1219), and cleaning auxiliary soft hair (1220); the supporting leg (1201), a connecting rod (1202), a supporting leg (1203), a docking plug block (1203), a positioning slot (1204), a connecting head (1205), a docking slot (1206), a threaded hole (1207), a fastening screw (1208), a bearing rod (1209), a scattering auxiliary strip (1210), a bearing strip (1211), a connecting body (1212), a movable carrier (1213), a placement cavity (1214), an auxiliary spring (1215), a cleaning cotton cone (1216), a fixed ring sheet (1217), a movable ferrule (1218), a connecting spring (1219), and cleaning auxiliary soft hair (1220); 1202) are fixedly arranged at the side position of the bottom end of the connecting rod (1201) at equal distances, the supporting leg (1202) is fixedly connected to the side wall of the cone bottom (1101) by screws, the connecting rod (1201) is adapted to be plugged into the sleeve groove in the auxiliary blocking body (1105), a docking block (1203) is fixedly arranged at the top of the connecting rod (1201), and positioning slots (1204) are arranged on both sides of the docking block (1203), the connecting head (1205) is fixedly arranged at one end of the bearing rod (1209), and a docking slot (1206) is arranged in the connecting head (1205), and threaded holes (1207) are symmetrically arranged in the connecting head (1205), and The connector (1205) and the docking plug block (1203) are connected and fixed by a fastening screw (1208), one end of the fastening screw (1208) is adapted to be snapped into the positioning slot (1204), the outer wall of the bearing rod (1209) is equidistantly fixed with a scattering auxiliary strip (1210), the top side of the bearing rod (1209) is symmetrically fixed with a bearing strip (1211), the other end of the bearing strip (1211) is fixed with a connector (1212), one side of the connector (1212) is provided with a placement cavity (1214), the placement cavity (1214) is provided with a movable carrier (1213), and one side of the auxiliary strip (1210) is equidistantly fixed with a placement cavity (1214), and the movable carrier (1213) is provided in the placement cavity (1214). A spring (1215) is provided, and the other end of the auxiliary spring (1215) is fixedly arranged in the placement cavity (1214); a cleaning cotton cone (1216) is equidistantly arranged on the other side of the movable carrier (1213); a fixed ring piece (1217) is fixedly arranged on the outer wall of the cleaning cotton cone (1216); the movable ring (1218) is movably sleeved on the cleaning cotton cone (1216); a connecting spring (1219) is symmetrically fixedly arranged on one side of the fixed ring piece (1217); the other end of the connecting spring (1219) is fixedly arranged on the side wall of the movable ring (1218); and cleaning auxiliary soft bristles (1220) are arranged on the side of the cone tip of the cleaning cotton cone (1216).

2. The airflow compound powder classifier according to claim 1, characterized in that: The docking slot (1206) and the docking plug block (1203) are arranged at corresponding positions and have the same number of groups, and the two are adapted to be plugged in.

3. The airflow compound powder classifier according to claim 1, characterized in that: The connecting bodies (1212) and the supporting bars (1211) are provided in the same number of groups, with two groups in total, and the connecting bodies (1212) and the screening net (10) are provided at corresponding positions.

4. The airflow compound powder classifier according to claim 1, characterized in that: The cleaning cotton cone (1216) is arranged at a position corresponding to the mesh holes on the screening net (10).

5. The airflow compound powder classifier according to claim 1, characterized in that: The movable carrier (1213) and the connector (1212) are arranged at corresponding positions and have the same number of groups, and the movable carrier (1213) is arranged movably in the placement cavity (1214) on the connector (1212).

6. The airflow compound powder classifier according to claim 1, characterized in that: The cone tip diameter of the cleaning cotton cone (1216) is smaller than the mesh diameter of the screening net (10), and the ring diameter of the movable ring (1218) is larger than the mesh diameter of the screening net (10).

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