Low-energy-consumption high-efficiency vortex powder classifier for sand and gravel aggregate production

Abstract

The utility model relates to the technical field of powder concentrator, disclose low energy consumption high -efficient scroll type powder concentrator for sandstone aggregate production, including the chassis, fixed mounting has the scroll powder concentrator main part and fan mounting plate on the chassis, install a plurality of shock absorbing rubber seat on the fan mounting plate, install the fan on the shock absorbing rubber seat, the periphery fixed mounting of scroll powder concentrator main part has the cyclone, the top fixed connection of cyclone has the exhaust branch pipe, the exhaust end fixed connection of exhaust branch pipe has the return air pipe, the air inlet of fan is connected with telescopic pipe no.

Description

Technical Field

[0001] This utility model belongs to the field of air classifier technology, specifically a low-energy-consumption and high-efficiency vortex air classifier used in sand and gravel aggregate production. Background Technology

[0002] A vortex classifier for sand and gravel aggregates is a specialized piece of equipment used in sand and gravel aggregate processing. It primarily separates and classifies fine powder and coarse particles in materials to obtain finished sand and gravel aggregates that meet requirements. Vortex classifiers play a vital role in the sand and gravel processing industry due to their unique classification principle and high efficiency. Their working principle is based on vortex airflow and gravity separation. After the material enters the classifier, under the action of a high-speed rotating feed disc, finer particles are carried up by the airflow, while coarser particles fall along the cylinder wall. The lower cage rotor further disperses the coarse particles, and the fine powder is further classified. Finally, the fine powder is collected through a cyclone separator, and the coarse powder is discharged from the outlet. By adjusting the rotation speed, the fineness of the product can be controlled to adapt to different process requirements.

[0003] In practical use, the applicant has found that existing vortex air classifiers for sand and gravel aggregates utilize fans to drive the internal air circulation, thereby achieving continuous airflow for sand and gravel aggregate separation. However, the fans vibrate significantly during operation, easily causing the frame to sway, make abnormal noises, or even loosen connections. At the same time, the inlet and outlet air ducts connected to the fans are also prone to loosening under vibration, indicating that structural stability needs to be improved. To address the aforementioned issues, a low-energy-consumption and high-efficiency vortex air classifier for sand and gravel aggregate production is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a low-energy-consumption and high-efficiency vortex classifier for sand and gravel aggregate production in order to solve the problems mentioned above.

[0005] The technical solution adopted by this utility model is as follows: a low-energy-consumption and high-efficiency vortex classifier for sand and gravel aggregate production, including a base frame, on which the main body of the vortex classifier and a fan mounting plate are fixedly installed. Multiple shock-absorbing rubber seats are installed on the fan mounting plate, and a fan is installed on each shock-absorbing rubber seat. Cyclone tubes communicating with the main body of the vortex classifier are fixedly installed around its perimeter. An exhaust branch pipe is fixedly connected to the top of the cyclone tube, and a return air pipe is fixedly connected to the outlet end of the exhaust branch pipe. A telescopic pipe is bolted to the inlet of the fan, and the inlet end of the telescopic pipe is bolted to the outlet end of the return air pipe. An inlet pipe communicating with the main body of the vortex classifier is fixedly installed at the lower part of the main body. A second telescopic pipe is bolted to the outlet of the fan, and the outlet end of the second telescopic pipe is bolted to the inlet end of the inlet pipe.

[0006] In a preferred embodiment, the shock-absorbing rubber seat includes a metal base plate, which is fixedly mounted on the fan mounting plate. A screw is welded to the metal base plate, and a rubber block is fitted onto the screw. The screw is connected to the fan mounting feet via a nut.

[0007] In a preferred embodiment, a bracket is installed on the air outlet side of the return air duct, and the bracket is mounted on the base frame.

[0008] In a preferred embodiment, the support frame includes a horizontal plate, which is fixedly mounted on the base frame by bolts. Two vertical plates are fixedly connected to the horizontal plate, and an arc-shaped support plate adapted to the return air duct is fixedly connected to the top of the vertical plate. The return air duct is supported on the arc-shaped support plate, and an arc-shaped pressure plate is fixedly mounted on the arc-shaped support plate by bolts.

[0009] In a preferred embodiment, a second bracket is installed on the air inlet side of the air inlet pipe, and the second bracket is mounted on the base frame.

[0010] In a preferred embodiment, the second support includes a second horizontal plate, which is fixedly mounted on the base frame by bolts. Two vertical plates are fixedly connected to the second horizontal plate, and a horizontal support plate is fixedly connected to the top of the vertical plates. The air inlet pipe is supported on the horizontal support plate, and lead screws are fixedly connected to both sides of the horizontal support plate by nuts. A concave pressure plate is connected to the upper part of the lead screws by nuts.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0012] 1. In this utility model, the fan is connected to the base frame through a shock-absorbing rubber seat, thereby reducing the impact of fan vibration on the base frame, thus minimizing the impact of fan operation vibration on the base frame swaying or even loosening of the connection, and also minimizing the abnormal noise generated by the base frame due to vibration.

[0013] 2. In this utility model, the blower is connected to the return air pipe through a telescopic pipe, thereby reducing the impact of blower operation vibration on the return air pipe and minimizing the possibility of loose connections and abnormal noises in the return air pipe. Similarly, the blower is connected to the inlet air pipe through a telescopic pipe, thereby reducing the impact of blower operation vibration on the inlet air pipe and minimizing the possibility of loose connections and abnormal noises in the inlet air pipe. The entire structure can effectively reduce the impact of blower operation vibration on the entire powder classifier and improve the stability of the structural connection. Attached Figure Description

[0014] Figure 1 This is a simplified schematic diagram of the internal structure of this utility model from the front view;

[0015] Figure 2 This is a simplified three-dimensional schematic diagram of the fan connection structure of this utility model;

[0016] Figure 3 This is a simplified three-dimensional structural diagram of the shock-absorbing rubber seat in this utility model.

[0017] The markings in the diagram are: 1-base frame, 2-fan mounting plate, 3-shock-absorbing rubber seat, 4-fan, 5-cyclone, 6-exhaust branch pipe, 7-return air pipe, 8-telescopic pipe one, 9-inlet pipe, 10-telescopic pipe two, 11-metal base plate, 12-screw, 13-bracket one, 14-horizontal plate one, 15-vertical plate one, 16-arc-shaped support plate, 17-arc-shaped pressure plate, 18-bracket two, 19-horizontal plate two, 20-vertical plate two, 21-horizontal support plate, 22-screw rod, 23-concave pressure plate, 24-rubber block, 25-vortex classifier body. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] The following will combine Figures 1-3 This invention provides a detailed description of a low-energy-consumption, high-efficiency vortex air classifier for sand and gravel aggregate production according to an embodiment of the present invention.

[0020] Example:

[0021] This utility model provides a low-energy-consumption, high-efficiency vortex air classifier for sand and gravel aggregate production, referencing... Figures 1 to 3As shown, the system includes a base frame 1, on which a vortex classifier body 25 and a fan mounting plate 2 are fixedly mounted. Multiple shock-absorbing rubber seats 3 are mounted on the fan mounting plate 2, and a fan 4 is mounted on each of the shock-absorbing rubber seats 3. Cyclone tubes 5, communicating with the vortex classifier body 25, are fixedly mounted around the vortex classifier body 25. An exhaust branch pipe 6 is fixedly connected to the top of the cyclone tube 5, and a return air pipe 7 is fixedly connected to the outlet of the exhaust branch pipe 6. A telescopic pipe 8 is bolted to the inlet of the fan 4, and the inlet of the telescopic pipe 8 is bolted to the outlet of the return air pipe 7. A device communicating with the vortex classifier body 25 is fixedly mounted at the bottom of the vortex classifier body 25. The air inlet pipe 9 and the air outlet of the blower 4 are connected by bolts to the telescopic pipe 2 10. The air outlet end of the telescopic pipe 2 10 is connected to the air inlet end of the air inlet pipe 9 by bolts. In this structure, the blower 4 provides circulating air power, which transports the sorting air from the air inlet pipe 9 to the inside of the vortex classifier body 25. The air power is used to sort the sand and gravel aggregate. The fine powder in the sorting will enter the cyclone 5 and be discharged from the cyclone 5. At the same time, the airflow of the vortex classifier body 25 will enter the exhaust branch pipe 6 with the suction force of the blower, and then flow back to the blower 4 through the return air pipe 7. The airflow will then be discharged into the vortex classifier body 25 by the blower 4 for sorting, thereby realizing internal circulation air classification.

[0022] The fan 4 is connected to the base frame 1 via a shock-absorbing rubber seat 3, thereby reducing the impact of fan 4 vibration on the base frame 1. This minimizes the impact of fan 4 vibration on the base frame 1, preventing it from swaying or even loosening. It also minimizes the noise generated by the vibration of the base frame 1. Furthermore, the fan 4 is connected to the return air pipe 7 via a telescopic pipe 8, further reducing the impact of fan 4 vibration on the return air pipe and minimizing the possibility of loose connections or noise in the return air pipe. Similarly, the fan 4 is connected to the inlet air pipe 9 via a telescopic pipe 10, further reducing the impact of fan 4 vibration on the inlet air pipe and minimizing the possibility of loose connections or noise in the inlet air pipe. The entire structure effectively reduces the impact of fan 4 vibration on the entire powder classifier and improves the stability of the structural connections.

[0023] It should be noted that the materials of telescopic tube 8 and telescopic tube 10 are preferably rubber, and sealing gaskets are provided at the joints of the above-mentioned pipe fittings for connection and sealing.

[0024] refer to Figure 1 As shown, the shock-absorbing rubber seat 3 includes a metal base plate 11, which is fixedly installed on the fan mounting plate 2. A screw 12 is welded onto the metal base plate 11, and a rubber block 24 is fitted onto the screw 12. The screw 12 is connected to the mounting feet of the fan 4 through a nut. The above structure constitutes the shock-absorbing rubber seat 3, wherein the fan 4 is installed on the screw 12, and the rubber block 24 is used to absorb the vibration of the fan 4.

[0025] refer to Figures 1 to 3As shown, a bracket 13 is installed on the air outlet side of the return air duct 7. The bracket 13 is installed on the base frame 1. In this structure, the lower part of the return air duct 7 is supported by the bracket 13, so that the return air duct 7 has independent support. When the fan 4 is disassembled later, the return air duct 7 will not be affected, which facilitates the disassembly and maintenance of the fan 4.

[0026] refer to Figures 1 to 3 As shown, the support frame 13 includes a horizontal plate 14, which is fixedly installed on the base frame 1 by bolts. Two vertical plates 15 are fixedly connected to the horizontal plate 14. An arc-shaped support plate 16 adapted to the return air duct 7 is fixedly connected to the top of the vertical plate 15. The return air duct 7 is supported on the arc-shaped support plate 16. An arc-shaped pressure plate 17 is fixedly installed on the arc-shaped support plate 16 by bolts. The above structure constitutes the support frame 13. The horizontal plate 14, vertical plate 15 and arc-shaped support plate 16 combine to form the lower support structure of the return air duct 7. Then, the arc-shaped pressure plate 17 is fixed to the arc-shaped support plate 16 by bolts, thereby locking and fixing the return air duct 7 to the arc-shaped pressure plate 17, thus achieving support for the return air duct 7.

[0027] refer to Figures 1 to 3 As shown, a bracket 18 is installed on the air inlet side of the air inlet duct 9. The bracket 18 is installed on the base frame 1. In this structure, the bracket 18 supports the air inlet side of the return air duct 7, so that the air inlet duct 9 has independent support. When the fan 4 is disassembled later, the air inlet duct 9 will not be affected, which facilitates the disassembly and maintenance of the fan 4 later.

[0028] refer to Figure 1 As shown, the second bracket 18 includes a horizontal plate 19, which is fixedly installed on the base frame 1 by bolts. Two vertical plates 20 are fixedly connected to the horizontal plate 19. A horizontal support plate 21 is fixedly connected to the top of the vertical plates 20. The air inlet pipe 9 is supported on the horizontal support plate 21. The two sides of the horizontal support plate 21 are fixedly connected to the screw rods 22 by nuts. The upper part of the screw rods 22 is connected to the concave pressure plate 23 by nuts. The above structure constitutes the structure of the second bracket 18. The horizontal plate 19, the vertical plates 20 and the horizontal support plate 21 form the lower support structure. Then, the concave pressure plate 23 is fixed to the horizontal support plate 21 by the screw rods 22, thereby locking and fixing the air inlet pipe to the horizontal support plate 21.

[0029] It should be noted that the above-mentioned vortex classifier body 25 is a well-known technical device in the art, and its specific structure has been disclosed. The vortex classifier body 25 also includes a top feed pipe and a drive motor. The output shaft of the drive motor is connected to a rotating shaft, on which an impeller and a feeding disc assembly are installed. The lower part of the vortex classifier body 25 is also provided with a medium and coarse material discharge pipe and a group material discharge pipe. For the specific structure, please refer to patent CN2220327Y. This application does not improve the internal separation structure of the vortex classifier body 25, so it will not be described in detail here.

[0030] The implementation principle of the low-energy-consumption and high-efficiency vortex air classifier for sand and gravel aggregate production in this application embodiment is as follows: During use, the blower 4 is connected to the base frame 1 through the shock-absorbing rubber seat 3, thereby reducing the impact of the blower 4 vibration on the base frame 1, thus minimizing the impact of the blower 4's vibration on the base frame 1's swaying or even loosening of the connection, and also minimizing the abnormal noise generated by the base frame 1 due to vibration. In addition, the blower 4 is connected to the return air pipe 7 through the first telescopic pipe 8, thereby reducing the impact of the blower 4's vibration on the return air pipe, and minimizing the occurrence of loosening of the return air pipe connection and abnormal noise. Similarly, the blower 4 is connected to the inlet air pipe 9 through the second telescopic pipe 10, thereby reducing the impact of the blower 4's vibration on the inlet air pipe, thus preventing the occurrence of loosening of the inlet air pipe connection and abnormal noise. The entire structure can effectively reduce the impact of the blower 4's vibration on the entire air classifier and improve the stability of the structural connection.

[0031] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A low-energy-consumption, high-efficiency vortex classifier for sand and gravel aggregate production, comprising a base frame (1), characterized in that: The base frame (1) is fixedly mounted with a vortex classifier body (25) and a fan mounting plate (2). Multiple shock-absorbing rubber seats (3) are mounted on the fan mounting plate (2), and a fan (4) is mounted on the shock-absorbing rubber seats (3). Cyclone tubes (5) communicating with the vortex classifier body (25) are fixedly mounted around the vortex classifier body (25). An exhaust branch pipe (6) is fixedly connected to the top of the vortex tube (5), and a return air pipe is fixedly connected to the outlet end of the exhaust branch pipe (6). (7) The air inlet of the blower (4) is connected to a telescopic pipe (8) by bolts. The air inlet end of the telescopic pipe (8) is connected to the air outlet end of the return air pipe (7) by bolts. The lower part of the vortex classifier body (25) is fixedly installed with an air inlet pipe (9) that communicates with the vortex classifier body (25). The air outlet of the blower (4) is connected to a telescopic pipe (10) by bolts. The air outlet end of the telescopic pipe (10) is connected to the air inlet end of the air inlet pipe (9) by bolts.

2. The low-energy-consumption, high-efficiency vortex air classifier for sand and gravel aggregate production as described in claim 1, characterized in that: The shock-absorbing rubber seat (3) includes a metal base plate (11), which is fixedly installed on the fan mounting plate (2). A screw (12) is welded on the metal base plate (11), and a rubber block (24) is fitted on the screw (12). The screw (12) is connected to the mounting feet of the fan (4) by a nut.

3. The low-energy-consumption, high-efficiency vortex air classifier for sand and gravel aggregate production as described in claim 1, characterized in that: A bracket (13) is installed on the air outlet side of the return air duct (7), and the bracket (13) is installed on the base frame (1).

4. The low-energy-consumption, high-efficiency vortex air classifier for sand and gravel aggregate production as described in claim 3, characterized in that: The bracket (13) includes a horizontal plate (14), which is fixedly installed on the base frame (1) by bolts. Two vertical plates (15) are fixedly connected to the horizontal plate (14). An arc-shaped support plate (16) adapted to the return air duct (7) is fixedly connected to the top of the vertical plate (15). The return air duct (7) is supported on the arc-shaped support plate (16). An arc-shaped pressure plate (17) is fixedly installed on the arc-shaped support plate (16) by bolts.

5. The low-energy-consumption, high-efficiency vortex air classifier for sand and gravel aggregate production as described in claim 1, characterized in that: A bracket (18) is installed on the air inlet side of the air inlet pipe (9), and the bracket (18) is installed on the base frame (1).

6. The low-energy-consumption, high-efficiency vortex air classifier for sand and gravel aggregate production as described in claim 5, characterized in that: The second bracket (18) includes a second horizontal plate (19), which is fixedly installed on the base frame (1) by bolts. Two second vertical plates (20) are fixedly connected to the second horizontal plate (19). A horizontal support plate (21) is fixedly connected to the top of the second vertical plate (20). The air inlet pipe (9) is supported on the horizontal support plate (21). A screw rod (22) is fixedly connected to both sides of the horizontal support plate (21) by nuts. A concave pressure plate (23) is connected to the upper part of the screw rod (22) by nuts.

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