Superfine powder concentrator with secondary sorting function

Abstract

The utility model relates to the technical field of powder separation equipment, and discloses a superfine powder concentrator with a secondary separation function, which comprises a shell, a motor is fixedly connected to the top end face of the shell, the output end of the motor is fixedly connected with the input end of a gear box, and the output end of the gear box is fixedly connected with the output end of the shell. And a cluster breaking assembly is arranged in the shell. According to the superfine powder concentrator with the secondary separation function, powder in the discharging hopper is rolled through the crushing block, the caked powder is separated again and recovered into single particles, the powder particles obtained after crushing and vibration treatment are looser and more evenly distributed after falling onto the scattering disc, a uniform and fine scattering layer can be formed easily, and the powder separation efficiency is improved. When the powder is thrown into the discharging cone, the powder impacts the stop block, the powder impacts the stop block in the flying process, small particle clusters or bonding blocks which still possibly exist are further broken and scattered, and meanwhile equipment abrasion caused by direct impact of the materials is prevented.

Description

Technical Field

[0001] This utility model relates to the field of powder sorting equipment technology, specifically to an ultrafine powder sorter with secondary sorting function. Background Technology

[0002] The ultrafine classifier is specially designed for processing various non-metallic mineral materials such as slag, fly ash, and quartz sand. This equipment adopts advanced classification technology and optimized airflow control system, which can perform high-precision sorting of materials with fine particle size and complex composition, significantly improving the fineness and uniformity of the finished powder.

[0003] However, in the process of processing non-metallic fine powder materials such as slag, fly ash, and quartz sand, due to the small particle size and large specific surface area of ​​the materials, they are prone to agglomeration due to factors such as electrostatic effects, moisture adsorption, or van der Waals forces between particles. This agglomeration or adhesion between particles not only leads to a decrease in material flowability but also seriously affects the screening effect and classification accuracy of the air classifier, reducing the quality stability of the finished powder. In view of this, we propose an ultrafine air classifier with secondary separation function. Utility Model Content

[0004] The purpose of this invention is to provide an ultrafine powder classifier with secondary sorting function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an ultrafine powder separator with secondary sorting function, comprising a housing, a motor fixedly connected to the top end face of the housing, the output end of the motor fixedly connected to the input end of a gearbox, and an agglomeration breaking assembly disposed inside the housing, the agglomeration breaking assembly comprising:

[0006] A feeding hopper, wherein an ultrasonic vibration generator is fixedly connected to the outer wall of the feeding hopper;

[0007] A rotating shaft, with a material spreading disc fixedly connected to its bottom end, a stop block fixedly connected to the top end face of the material spreading disc, and a crushing block fixedly connected to the side wall of the rotating shaft;

[0008] A connecting rod, wherein a shielding ring is fixedly connected to the end face of the connecting rod, and a main blade is fixedly connected to the top end face of the shielding ring.

[0009] Preferably, the top end face of the spreading disc is fixedly connected with a secondary blade, and the secondary blade is staggered with the stop block.

[0010] Preferably, the hopper is fixedly connected to the inner top surface of the housing, the top end face of the housing is fixedly connected to the feed pipe, and the bottom of the housing is fixedly connected to the fine material discharge pipe.

[0011] Preferably, the rotating shaft is fixedly connected to the output end of the gearbox, and the crushing block is arranged in an inverted cone shape. The crushing block crushes the powder inside the hopper, causing the agglomerated powder to separate again.

[0012] Preferably, a coarse material discharge pipe is fixedly connected to the side wall of the housing, and a discharge cone is fixedly connected to the top end face of the coarse material discharge pipe. A return air port is opened on the side wall of the discharge cone. The airflow re-enters the discharge cone through the return air port, and then the airflow rises and enters the annular space between the housing and the discharge cone through the top of the discharge cone.

[0013] Preferably, there are two sets of ultrafine classifiers. The coarse material discharge pipe of the upper set of ultrafine classifiers is fixedly connected to a connecting pipe, and the other end of the connecting pipe is fixedly connected to the feed pipe of the lower set of ultrafine classifiers.

[0014] Preferably, the material spreading disc is located inside the material feeding cone, and the bottom of the shielding ring is movably connected to the bottom end face of the material feeding cone.

[0015] Compared with the prior art, this utility model provides an ultrafine powder classifier with secondary sorting function, which has the following beneficial effects:

[0016] 1. This ultrafine powder classifier with secondary sorting function uses a set of agglomeration breaking components to crush the powder inside the hopper, causing the agglomerated powder to be separated back into individual particles. This is beneficial for subsequent uniform distribution and powder classification operations. The powder particles after crushing and vibration are more loose and are more evenly distributed after falling onto the spreading plate, which helps to form a uniform and fine spreading layer. As the powder is thrown into the feeding cone, it will hit the baffle. During the flight, the powder will hit the baffle and further break up and disperse any small agglomerates or clumps that may still exist, making the material more uniform and loose, which is beneficial for subsequent classification. At the same time, it prevents the material from directly impacting the equipment and causing wear.

[0017] 2. This ultrafine powder separator with secondary sorting function enhances the centrifugal throwing effect of powder in the edge area of ​​the feeding disc by setting secondary blades, increasing the speed and kinetic energy of the powder being thrown out, so that the powder has greater kinetic energy before entering the feeding cone. At the same time, it enhances the airflow velocity, which can more effectively carry the fine powder particles with smaller particle size and lighter weight upward with the airflow. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the main body of this utility model;

[0020] Figure 3 This is a schematic diagram of the feeding cone structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the shell of this utility model;

[0022] Figure 5 This is a schematic diagram of the rotating shaft structure of this utility model;

[0023] Figure 6 This utility model Figure 6 Schematic diagram of the structure of region A in the middle.

[0024] In the diagram: 1. Shell; 2. Motor; 3. Gearbox; 4. Agglomeration assembly; 401. Feed hopper; 402. Ultrasonic vibration generator; 403. Rotating shaft; 404. Feeding disc; 405. Agglomerate; 406. Connecting rod; 407. Baffle ring; 408. Main blade; 409. Stop block; 5. Secondary blade; 6. Feed pipe; 7. Fine material discharge pipe; 8. Feed cone; 9. Coarse material discharge pipe; 10. Return air vent; 11. Connecting pipe. Detailed Implementation

[0025] like Figures 1-6 As shown, this utility model provides a technical solution: an ultrafine powder classifier with secondary sorting function, including a housing 1, a motor 2 fixedly connected to the top end face of the housing 1, the output end of the motor 2 fixedly connected to the input end of the gearbox 3, and a clump breaking assembly 4 provided inside the housing 1, the clump breaking assembly 4 including a feeding hopper 401, an ultrasonic vibration generator 402, a rotating shaft 403, a feeding disc 404, crushed blocks 405, a connecting rod 406, a shielding ring 407, a main blade 408, and a stop block 409.

[0026] In one embodiment of this utility model, the feeding hopper 401 is fixedly connected to the inner top surface of the housing 1, the outer wall of the feeding hopper 401 is fixedly connected to an ultrasonic vibration generator 402, the top end face of the housing 1 is fixedly connected to a feeding pipe 6, and the bottom of the housing 1 is fixedly connected to a fine material discharge pipe 7.

[0027] The rotating shaft 403 is fixedly connected to the output end of the gearbox 3. The bottom end of the rotating shaft 403 is fixedly connected to the spreading disc 404. The top end face of the spreading disc 404 is fixedly connected to the stop block 409. The side wall of the rotating shaft 403 is fixedly connected to the crushing block 405, which is arranged in an inverted cone shape. The crushing block 405 crushes the powder inside the hopper 401, causing the agglomerated powder to separate again. The connecting rod 406 is fixedly connected to the side wall of the rotating shaft 403. The end face of the connecting rod 406 is fixedly connected to the shielding ring 407. The top end face of the shielding ring 407 is fixedly connected to the main blade 408. The shielding ring 407 is located above the spreading disc 404 and near the airflow rising channel. When the powder is thrown out by centrifugal force, some particles will try to rise with the airflow. The function of the shielding ring 407 is to physically block larger or heavier particles from approaching the main airflow channel, preventing them from being mistakenly judged as fine powder and carried out with the airflow, thereby improving the clarity of particle size boundaries and the accuracy of classification during screening.

[0028] A coarse material discharge pipe 9 is fixedly connected to the side wall of the housing 1. A discharge cone 8 is fixedly connected to the top end face of the coarse material discharge pipe 9. A return air port 10 is opened on the side wall of the discharge cone 8. The airflow re-enters the discharge cone 8 through the return air port 10. Then the airflow rises and enters the annular space between the housing 1 and the discharge cone 8 through the top of the discharge cone 8. The material spreading plate 404 is located inside the discharge cone 8. The bottom of the shielding ring 407 is movably connected to the bottom end face of the discharge cone 8.

[0029] There are two sets of ultrafine classifiers. The coarse material discharge pipe 9 of the upper ultrafine classifier is fixedly connected to the end face of the connecting pipe 11, and the other end of the connecting pipe 11 is fixedly connected to the feed pipe 6 of the lower ultrafine classifier.

[0030] The powder is fed into the hopper 401 through the feed pipe 6. The powder falls onto the spreading disc 404 along the hopper 401. The motor 2 starts and drives the rotating shaft 403 to rotate through the gearbox 3. The rotating shaft 403 drives the crushing block 405 to rotate. The crushing block 405 crushes the powder inside the hopper 401, separating the clumps of powder and restoring them to individual particles. This is beneficial for subsequent uniform distribution and powder selection. The vibration of the ultrasonic vibration generator 402 is transmitted to the powder inside the hopper 401. The combined action of mechanical crushing and ultrasonic vibration helps prevent the powder from bridging in the hopper 401, ensuring the continuity and stability of the feeding process and improving the overall operating efficiency of the machine. The powder particles after crushing and vibration are looser and more evenly distributed after falling onto the spreading disc 404, which helps to form a uniform and fine spreading layer, providing an ideal material state for subsequent air separation or grading processes.

[0031] The rotation of the rotating shaft 403 drives the spreading disc 404 to rotate. Under the action of centrifugal force, the powder is thrown into the feeding cone 8. During the process of being thrown into the feeding cone 8, the powder will hit the baffle 409. The powder hits the baffle 409 during the flight, which is equivalent to experiencing a high-speed impact. This helps to further break up and disperse any small particles or clumps that may still exist, making the material more uniform and loose, which is beneficial for subsequent classification. At the same time, it prevents the material from rushing directly and causing wear on the equipment, so that the material enters the feeding cone 8 at a more reasonable speed and direction.

[0032] The rotation of the rotating shaft 403 drives the shielding ring 407 and the main blade 408 to rotate, causing the airflow to rise. This causes the fine particles falling into the discharge cone 8 to be carried upward by the airflow. Then, with the airflow, they enter the annular space between the housing 1 and the discharge cone 8. The airflow re-enters the discharge cone 8 through the return air port 10, while the fine particles are collected through the fine material discharge pipe 7. The larger particles cannot be carried up by the airflow and enter the coarse material discharge pipe 9 through the discharge cone 8. Then, they enter the next stage ultrafine powder classifier again through the connecting pipe 11, improving the fine powder separation accuracy, avoiding fine powder loss, and increasing the recovery rate.

[0033] In addition, a secondary blade 5 is fixedly connected to the top end face of the spreading disc 404. The secondary blade 5 is staggered with the stop block 409. The secondary blade 5 participates in the rotation of the spreading disc 404. Its inclined structure and angle design can enhance the centrifugal throwing effect of the powder in the edge area of ​​the spreading disc 404, increase the speed and kinetic energy of the powder being thrown out, and give the powder greater kinetic energy before entering the feeding cone 8. This is conducive to forming a larger distribution radius, increasing the spreading range and particle classification gradient, and at the same time enhancing the airflow velocity. It can more effectively carry the fine powder particles with smaller particle size and lighter weight upward with the airflow, and quickly leave the coarse powder area and enter the annular classification space.

[0034] In this invention, during use, powder is fed into the hopper 401 through the feed pipe 6. The powder falls onto the spreading disc 404 along the hopper 401. The motor 2 starts, and through the rotation of the gearbox 3, it drives the rotating shaft 403 to rotate. The rotating shaft 403 drives the crushing block 405 to rotate. The crushing block 405 crushes the powder inside the hopper 401, causing the clumps of powder to separate and return to individual particles. The combined action of mechanical crushing and ultrasonic vibration prevents the powder from bridging in the hopper 401, ensuring the continuity and stability of the feeding process and improving the overall operating efficiency of the machine. After crushing and vibration, the powder particles are looser and more evenly distributed after falling onto the spreading disc 404. The rotation of the rotating shaft 403 drives the spreading disc 404 to rotate, and the powder is centrifuged... Under the action of force, the powder is thrown into the feeding cone 8. During the process of being thrown into the feeding cone 8, the powder will hit the baffle 409. The impact of the powder on the baffle 409 during the flight will further break up and disperse any small particles or clumps that may still exist. The rotating shaft 403 rotates, driving the shielding ring 407 and the main blade 408 to rotate, which drives the airflow to rise. This causes the fine particles that fall into the feeding cone 8 to be carried up by the airflow. Then, with the airflow, they enter the annular space between the shell 1 and the feeding cone 8. The airflow re-enters the feeding cone 8 through the return air port 10, and the fine particles are collected through the fine material discharge pipe 7. The larger particles cannot be carried up by the airflow and enter the coarse material discharge pipe 9 through the feeding cone 8. Then, they enter the next stage ultrafine powder separator again through the connecting pipe 11, improving the fine powder separation accuracy.

[0035] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An ultrafine powder separator with secondary sorting function, comprising a housing (1), wherein a motor (2) is fixedly connected to the top end face of the housing (1), and the output end of the motor (2) is fixedly connected to the input end of a gearbox (3), characterized in that: The shell (1) is provided with a floc-breaking component (4) inside, the floc-breaking component (4) including: A feeding hopper (401) is provided with an ultrasonic vibration generator (402) fixedly connected to its outer wall. A rotating shaft (403) is fixedly connected to a material spreading disc (404) at its bottom end. A stop block (409) is fixedly connected to the top end face of the material spreading disc (404). A crushing block (405) is fixedly connected to the side wall of the rotating shaft (403). A connecting rod (406) is fixedly connected to a shielding ring (407) at its end face, and a main blade (408) is fixedly connected to the top end face of the shielding ring (407).

2. The ultrafine powder separator with secondary sorting function according to claim 1, characterized in that: The top end face of the spreading disc (404) is fixedly connected with a secondary blade (5), and the secondary blade (5) and the stop block (409) are arranged alternately.

3. The ultrafine powder separator with secondary sorting function according to claim 1, characterized in that: The hopper (401) is fixedly connected to the inner top surface of the housing (1), the top end face of the housing (1) is fixedly connected to the feed pipe (6), and the bottom of the housing (1) is fixedly connected to the fine material discharge pipe (7).

4. The ultrafine powder separator with secondary sorting function according to claim 1, characterized in that: The rotating shaft (403) is fixedly connected to the output end of the gearbox (3), and the crushing block (405) is arranged in an inverted cone shape.

5. The ultrafine powder separator with secondary sorting function according to claim 1, characterized in that: The side wall of the housing (1) is fixedly connected to a coarse material discharge pipe (9), and the top end face of the coarse material discharge pipe (9) is fixedly connected to a discharge cone (8). The side wall of the discharge cone (8) is provided with a return air port (10).

6. The ultrafine powder separator with secondary sorting function according to claim 3, characterized in that: The ultrafine classifiers are configured in two sets. The coarse material discharge pipe (9) of the upper set of ultrafine classifiers is fixedly connected to a connecting pipe (11), and the other end of the connecting pipe (11) is fixedly connected to the feed pipe (6) of the lower set of ultrafine classifiers.

7. The ultrafine powder separator with secondary sorting function according to claim 5, characterized in that: The material spreading disc (404) is located inside the material feeding cone (8), and the bottom of the shielding ring (407) is movably connected to the bottom end face of the material feeding cone (8).

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