Vertical airflow classifier
By introducing an adjustable movable plate and bolt structure into the vertical air classifier, the problem of widened particle size distribution caused by the fixed impeller clearance of existing classifiers has been solved, achieving precise control and efficient classification.
Patent Information
- Application Number
- CN202520092501.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-15
AI Technical Summary
The impeller clearance of existing classifiers is fixed and cannot be precisely adjusted according to different materials and production process requirements, resulting in a wider particle size distribution and affecting the classification effect.
A vertical air classifier was designed. By introducing an adjustable movable plate and bolt structure into the classifier wheel mechanism, the user can adjust the impeller clearance according to the material characteristics. Combined with the setting of filter plates and feed pipes, precise control of the classification particle size can be achieved.
It improves the accuracy and uniformity of material classification, ensures a narrower particle size distribution, and enhances the classification effect.
Smart Images
Figure CN223819131U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material classification equipment technology, and in particular to a vertical airflow classifier. Background Technology
[0002] An air classifier is a device used to precisely classify mixed materials according to particle size. It can accurately separate materials into different grades based on particle size, producing products with a narrow particle size distribution. It can meet various high-precision classification requirements and can process various powdery and granular materials, including metals, non-metals, organic matter, and inorganic matter. It also has good adaptability to materials of different shapes, densities, and hardnesses, and can be widely used in chemical, mineral processing, metallurgy, building materials, pharmaceutical, and food industries.
[0003] Currently, air classifiers require high-speed rotating classifying wheels to create a strong centrifugal force field during material separation. However, the impeller gap of existing classifiers is fixed. Different materials and production processes have different requirements for product particle size, and the impeller gap cannot be adjusted. It is difficult to accurately control the classification particle size according to actual needs, resulting in a wider particle size distribution of the product and affecting the classification effect. Utility Model Content
[0004] The purpose of this invention is to solve the problem that the impeller gap of the classifying wheel in existing classifiers is fixed, which makes it impossible to adjust the impeller gap for different materials and production processes with different particle size requirements. This makes it difficult to accurately control the classification particle size according to actual needs, resulting in a wider particle size distribution of the product and affecting the classification effect. Therefore, a vertical airflow classifier is proposed.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a vertical air classifier, comprising a separation chamber, an air inlet pipe fixedly connected to the outer wall of the separation chamber, a guide box installed on the top surface of the separation chamber, an outlet pipe fixedly connected to the outer wall of the guide box, an inlet pipe fixedly connected to the top surface of the guide box, a coarse material outlet fixedly connected to the bottom surface of the separation chamber, a classifying wheel mechanism provided inside the separation chamber, a filter plate installed on the top surface of the classifying wheel mechanism, the filter plate being rotatably connected to the bottom surface of the guide box, and a motor installed on the outer wall of the guide box;
[0006] The grading wheel mechanism includes an impeller, a drive shaft, a fixed plate, a movable plate, a ring plate, and an adjusting groove. The bottom end of the drive shaft is fixedly connected to the center of the inner bottom surface of the impeller, and the top end of the drive shaft passes through the top surface of the guide box and is connected to the motor for transmission. The fixed plate is fixedly connected to the inner wall of the impeller, and the movable plate is located inside the fixed plate. The adjusting groove is opened on the top surface of the impeller, and the ring plate is fixedly connected to the inner wall of the adjusting groove. A connecting shaft is rotatably connected through the inner wall of the adjusting groove. The bottom end of the connecting shaft is rotatably connected to the inner wall of the grading wheel mechanism. The movable plate is fixedly sleeved on the outer wall of the connecting shaft. A traction plate is fixedly connected to the upper outer wall of the connecting shaft. One end of the traction plate is rotatably connected to a bolt two. One end of the bolt two has an internally threaded sleeve plate threaded onto its outer wall. One end of the internally threaded sleeve plate is threadedly connected to a bolt one. One end of the bolt one is rotatably connected to the top surface of the ring plate.
[0007] Preferably, the bottom surface of the filter plate is fixedly connected to a base, and the bottom end of the base is snapped into the inner wall of the adjustment groove.
[0008] Preferably, a guide tube is sleeved on the outside of the drive shaft, a material inlet is opened through the center of the top surface of the impeller, and the bottom end of the guide tube is movably connected to the inner wall of the material inlet.
[0009] Preferably, the top end of the feed tube is fixedly connected to the inner top surface of the feed box, and the interior of the feed pipe is in communication with the interior of the feed tube.
[0010] Preferably, the inner wall of the feed box is provided with a fine material passage, and the interior of the feed box is connected to the inner side of the filter plate through the fine material passage.
[0011] Preferably, a synchronous pulley assembly is connected between the output shaft end of the motor and the transmission shaft, and a housing is fitted around the synchronous pulley assembly, which is fixedly connected to the top surface of the guide box.
[0012] Preferably, a guide plate is fixedly connected to the inner bottom surface of the separation box, the interior of the guide plate is connected to the interior of the coarse material outlet, and a fixing frame is fixedly connected to the lower outer wall of the separation box.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. In this utility model, before use, the user can rotate the internal threaded sleeve plate to adjust the distance between bolt one and bolt two, thereby controlling the traction plate to deflect and drive the connecting shaft to rotate and adjust the movable plate. This allows the user to easily adjust the gap between adjacent movable plates according to the actual material characteristics, facilitating better material passage and improving the material grading effect.
[0015] 2. In this utility model, by setting up the base and filter plate, the fine particles after the initial classification by the classifying wheel move with the airflow and are further screened by the filter plate to intercept slightly larger particles that do not meet the particle size requirements, so that the passing particles are more uniform and fine, and the classification accuracy is improved. The material is continuously transported to the inside of the classifying wheel mechanism for classification processing by setting up the feed pipe and guide pipe. Attached Figure Description
[0016] Figure 1 A three-dimensional structural diagram of a vertical air classifier is provided for this utility model;
[0017] Figure 2 This utility model provides a schematic diagram of the internal structure of the separator box of a vertical airflow classifier;
[0018] Figure 3 This utility model provides a schematic diagram of the internal structure of a vertical air classifier;
[0019] Figure 4 This utility model provides a structural schematic diagram of the classifying wheel mechanism of a vertical airflow classifier;
[0020] Figure 5 This utility model proposes a vertical air classifier. Figure 4 Enlarged view of the structure at point A in the middle.
[0021] Legend: 1. Separation box; 11. Guide plate; 2. Air inlet pipe; 3. Fixing frame; 4. Coarse material outlet; 5. Guide box; 51. Outlet pipe; 52. Feed pipe; 53. Guide pipe; 54. Fine material inlet; 6. Motor; 61. Housing; 62. Synchronous belt pulley assembly; 7. Filter plate; 71. Base; 8. Grading wheel mechanism; 81. Impeller; 82. Drive shaft; 83. Fixing plate; 84. Movable plate; 841. Connecting shaft; 842. Internal threaded sleeve plate; 843. Traction plate; 844. Bolt 1; 845. Bolt 2; 85. Ring plate; 86. Adjustment groove; 87. Material inlet. Detailed Implementation
[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0024] Example 1: As Figure 1 - Figure 5 As shown, this utility model provides a vertical air classifier, including a separation box 1. An air inlet pipe 2 is fixedly connected to the outer wall of the separation box 1. A guide box 5 is installed on the top surface of the separation box 1. An outlet pipe 51 is fixedly connected to the outer wall of the guide box 5. A feed pipe 52 is fixedly connected to the top surface of the guide box 5. A coarse material outlet 4 is fixedly connected to the bottom surface of the separation box 1. A classifying wheel mechanism 8 is provided inside the separation box 1. A filter plate 7 is installed on the top surface of the classifying wheel mechanism 8 and rotatably connected to the bottom surface of the guide box 5. A motor 6 is installed on the outer wall of the guide box 5. The classifying wheel mechanism 8 includes an impeller 81, a drive shaft 82, a fixed plate 83, a movable plate 84, a ring plate 85, and an adjusting groove 86. The bottom end of the drive shaft 82 is fixedly connected to the center of the inner bottom surface of the impeller 81, and the top end of the drive shaft 82 passes through the guide box 5. The top surface of the impeller is connected to the motor 6 for transmission. The fixed plate 83 is fixedly connected to the inner wall of the impeller 81. The movable plate 84 is set inside the fixed plate 83. The adjusting groove 86 is opened on the top surface of the impeller 81. The ring plate 85 is fixedly connected to the inner wall of the adjusting groove 86. The inner wall of the adjusting groove 86 is rotatably connected to the connecting shaft 841. The bottom end of the connecting shaft 841 is rotatably connected to the inner wall of the classifying wheel mechanism 8. The movable plate 84 is fixedly sleeved on the outer wall of the connecting shaft 841. The upper outer wall of the connecting shaft 841 is fixedly connected to the traction plate 843. One end of the traction plate 843 is rotatably connected to the bolt 2 845. One end of the bolt 2 845 is threadedly sleeved with the inner threaded sleeve plate 842. One end of the inner threaded sleeve plate 842 is threadedly connected to the bolt 1 844. One end of the bolt 1 844 is rotatably connected to the top surface of the ring plate 85.
[0025] The specific settings and functions of this embodiment are described in detail below. By starting the motor 6 to drive the grading wheel mechanism 8 to rotate, centrifugal force is applied to the falling material and it is thrown out. In conjunction with the air inlet pipe 2, gas is delivered to the separation box 1, and the fine material is transported to the filter plate 7 for sorting, thereby realizing material grading. Before use, the user can adjust the distance between bolt 844 and bolt 845 by rotating the internal threaded sleeve plate 842, thereby controlling the traction plate 843 to deflect and drive the connecting shaft 841 to rotate and adjust the movable plate 84. This allows the user to adjust the gap between adjacent movable plates 84 according to the actual material characteristics, so that the material can pass through better and improve the material grading effect.
[0026] Example 2: Figure 1 - Figure 5As shown, a base 71 is fixedly connected to the bottom surface of the filter plate 7. The bottom end of the base 71 is snapped into the inner wall of the adjusting groove 86. A guide pipe 53 is sleeved on the outside of the drive shaft 82. A feed port 87 is opened through the center of the top surface of the impeller 81. The bottom end of the guide pipe 53 is movably connected to the inner wall of the feed port 87. The top end of the guide pipe 53 is fixedly connected to the inner top surface of the guide box 5. The inside of the feed pipe 52 is connected to the inside of the guide pipe 53. A fine material outlet 54 is opened on the inner wall of the guide box 5. The inside of the guide box 5 is connected to the inside of the filter plate 7 through the fine material outlet 54. A synchronous belt pulley assembly 62 is connected between the output shaft end of the motor 6 and the drive shaft 82. A housing 61 is sleeved on the outside of the synchronous belt pulley assembly 62. The housing 61 is fixedly connected to the top surface of the guide box 5. A guide plate 11 is fixedly connected to the inner bottom surface of the separation box 1. The inside of the guide plate 11 is connected to the inside of the coarse material outlet 4. A fixing frame 3 is fixedly connected to the lower outer wall of the separation box 1.
[0027] The overall effect of this embodiment is that, through the arrangement of the base 71 and the filter plate 7, the fine particles after initial classification by the classifying wheel move with the airflow and are further screened by the filter plate 7, intercepting slightly larger particles that do not meet the particle size requirements, making the passing particles more uniform and fine, and improving the classification accuracy. Through the arrangement of the feed pipe 52 and the guide pipe 53, the material is continuously transported to the inside of the classifying wheel mechanism 8 for classification processing. The start motor 6 drives the classifying wheel mechanism 8 to rotate through the synchronous belt pulley assembly 62 to apply centrifugal force to the falling material. Through the arrangement of the guide plate 11, the falling coarse material is received and guided, so that the material can be better discharged through the coarse material outlet 4. The guide plate 11 also guides the airflow input by the air inlet pipe 2 to the inner edge of the separation box 1, improving the airflow classification effect.
[0028] The device is used as follows: During use, the material is conveyed to the grading wheel mechanism 8 through the feed pipe 52 and the guide pipe 53. At the same time, the motor 6 is started to drive the grading wheel mechanism 8 to rotate, applying centrifugal force to the falling material. The material is discharged through the movable plate 84 and the fixed plate 83 and collides with the inner wall of the separation box 1. Gas is delivered to the separation box 1 through the air inlet pipe 2, which conveys the fine material to the filter plate 7. The material then enters the guide box 5 through the filter plate 7 and is discharged through the outlet pipe 51, thereby achieving material grading. Before use, the user can adjust the distance between bolt 1 844 and bolt 2 845 by rotating the internal threaded sleeve plate 842, thereby controlling the traction plate 843 to deflect and drive the connecting shaft 841 to rotate and adjust the movable plate 84. This allows the user to adjust the gap between adjacent movable plates 84 according to the actual material characteristics.
[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A vertical air classifier, comprising a separation chamber (1), characterized in that: An air inlet pipe (2) is fixedly connected to the outer wall of the separation box (1). A guide box (5) is installed on the top surface of the separation box (1). An outlet pipe (51) is fixedly connected to the outer wall of the guide box (5). An inlet pipe (52) is fixedly connected to the top surface of the guide box (5). A coarse material outlet (4) is fixedly connected to the bottom surface of the separation box (1). A grading wheel mechanism (8) is provided inside the separation box (1). A filter plate (7) is installed on the top surface of the grading wheel mechanism (8). The filter plate (7) is rotatably connected to the bottom surface of the guide box (5). A motor (6) is installed on the outer wall of the guide box (5). The grading wheel mechanism (8) includes an impeller (81), a drive shaft (82), a fixed plate (83), a movable plate (84), an annular plate (85), and an adjusting groove (86). The bottom end of the drive shaft (82) is fixedly connected to the center of the inner bottom surface of the impeller (81), and the top end of the drive shaft (82) penetrates the top surface of the guide box (5) and is connected to the motor (6) for transmission. The fixed plate (83) is fixedly connected to the inner wall of the impeller (81), and the movable plate (84) is located inside the fixed plate (83). The adjusting groove (86) is opened on the top surface of the impeller (81), and the annular plate (85) is fixedly connected to the inner wall of the adjusting groove (86). A connecting shaft (841) is rotatably connected through the inner wall of the groove (86). The bottom end of the connecting shaft (841) is rotatably connected to the inner wall of the grading wheel mechanism (8). The movable plate (84) is fixedly sleeved on the outer wall of the connecting shaft (841). A traction plate (843) is fixedly connected to the upper outer wall of the connecting shaft (841). A bolt two (845) is rotatably connected to one end of the traction plate (843). An internal threaded sleeve plate (842) is threaded onto the outer wall of one end of the bolt two (845). A bolt one (844) is threaded onto one end of the internal threaded sleeve plate (842). One end of the bolt one (844) is rotatably connected to the top surface of the ring plate (85).
2. A vertical air classifier according to claim 1, characterized in that: The bottom surface of the filter plate (7) is fixedly connected to a base (71), and the bottom end of the base (71) is snapped into the inner wall of the adjustment groove (86).
3. A vertical air classifier according to claim 1, characterized in that: The drive shaft (82) is fitted with a guide tube (53), and the top surface of the impeller (81) is provided with a through-hole (87). The bottom end of the guide tube (53) is movably connected to the inner wall of the through-hole (87).
4. A vertical air classifier according to claim 3, characterized in that: The top end of the feed tube (53) is fixedly connected to the inner top surface of the feed box (5), and the inside of the feed tube (52) is connected to the inside of the feed tube (53).
5. A vertical air classifier according to claim 1, characterized in that: The inner wall of the feed box (5) is provided with a fine material inlet (54), and the interior of the feed box (5) is connected to the inner side of the filter plate (7) through the fine material inlet (54).
6. A vertical air classifier according to claim 1, characterized in that: The output shaft of the motor (6) is connected to the transmission shaft (82) by a synchronous pulley assembly (62). The synchronous pulley assembly (62) is fitted with a housing (61), which is fixedly connected to the top surface of the guide box (5).
7. A vertical air classifier according to claim 1, characterized in that: The bottom surface of the separation box (1) is fixedly connected to a guide plate (11), the interior of the guide plate (11) is connected to the interior of the coarse material outlet (4), and the lower outer wall of the separation box (1) is fixedly connected to a fixing frame (3).