Powder concentrator with side feeding function
By setting up a side feeding channel and an independent sorting area in the air classifier, and using a spreading disc and impeller module to separate the material sorting process, the problems of material interference and high energy consumption in top-feed air classifiers are solved, and an air classifier design with high efficiency and low cost is achieved.
Patent Information
- Application Number
- CN202520288767.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-21
AI Technical Summary
The material dispersion and grading processes of existing top-feed classifiers interfere with each other, and the top feeding method is limited by the height of the plant, has high energy consumption, complex equipment, and high maintenance costs.
The side-feed air classifier is designed by setting up an independent material dispersion and sorting area inside the shell, using a side feeding channel, and using a spreading disc and impeller module to separate the material sorting process. It also achieves material grading through negative pressure airflow and centrifugal force, simplifying the feeding method.
It improves material sorting accuracy, reduces energy consumption and equipment complexity during feeding, simplifies the structure, and reduces manufacturing and maintenance costs.
Smart Images

Figure CN223888483U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a side-feeding air classifier, belonging to the field of air classifier technology. Background Technology
[0002] Commonly, top-feed classifiers often employ a structure with a spreading disc located above the impeller sorting section. In this structure, the material dispersion and grading processes occur within the same area inside the casing, which can easily interfere with each other and affect the sorting effect. Furthermore, these classifiers typically use a top-feeding elevator, which presents several inconveniences in practical use. Firstly, due to plant height limitations, the elevator cannot reach the top of the classifier for feeding. Secondly, the higher lifting height during top feeding increases the elevator's energy consumption. Thirdly, top feeding requires a separate feeding channel, increasing equipment complexity and manufacturing costs. Moreover, this feeding method is prone to wear between the material and the impeller's drive shaft, leading to increased maintenance costs. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a side-feeding air classifier with independent material dispersion and sorting areas to avoid mutual interference between the material dispersion and sorting processes. At the same time, the feeding method is optimized to realize side feeding, reduce the feeding height, and improve the ease of use of the air classifier.
[0004] The present invention relates to a side-feed powder classifier, comprising: an impeller module and a feeding disc for sorting materials are provided inside a shell module, the impeller module being disposed above the feeding disc; a first power module and a second power module are respectively disposed at the top and bottom of the shell module;
[0005] The output end of the first power module is connected to the moving part of the impeller module; the material spreading disc is connected to the output end of the second power module.
[0006] The housing module is equipped with a material cone and a middle material channel for receiving the materials sorted by the impeller module; the material discharged from the output end of the material cone can pass through the spreading disc and be discharged into the middle material channel;
[0007] The side of the housing module is provided with several feeding channels, through which the materials to be sorted can be transported to the spreading plate.
[0008] Furthermore, the housing module includes, from top to bottom, an air outlet housing, a sorting upper housing, a sorting lower housing, an air inlet housing, and a material outlet housing;
[0009] An air outlet is provided on the side of the air outlet housing; an air inlet is provided on the side of the air inlet housing; and a louvered valve for adjusting the air intake is provided on the air inlet.
[0010] Furthermore, the first power module includes a first motor, and a first drive shaft is connected to the output end of the first motor;
[0011] The first motor is fixedly connected to the top of the air outlet housing; the first drive shaft passes through the inside of the housing module.
[0012] Furthermore, the impeller module includes: a rotating impeller and a stationary impeller arranged coaxially;
[0013] The fixed wheel is fixedly connected to the upper shell of the sorting, and the rotating wheel is connected to the first drive shaft; the first power module can drive the rotating wheel to rotate relative to the fixed wheel.
[0014] Furthermore, the cone is fixedly connected to the bottom end of the fixed wheel;
[0015] The material spreading disc has an opening, the discharge port of the material cone is attached above the opening of the material spreading disc, and the middle material channel is connected below the opening of the material spreading disc.
[0016] Furthermore, the second power module includes a second motor, and a second drive shaft is connected to the output end of the second motor;
[0017] The second motor is fixedly connected to the discharge housing; the second drive shaft passes through the housing module; the second drive shaft passes through the material channel and is connected to the spreading disc.
[0018] Furthermore, the spreading disc is also equipped with several material-dispersing blades;
[0019] The feeding channel includes a discharge port, which is located above the spreading disc. The material to be sorted can fall onto the spreading blades along the discharge port.
[0020] The advantages of this utility model compared with the prior art are:
[0021] The material spreading disc and impeller module are set in different areas of the shell module to ensure that the material dispersion and sorting processes are carried out independently without interference, thus ensuring the sorting accuracy of the material. At the same time, the classifier is fed through the feeding channel set on the side of the shell module, which avoids the disadvantage of traditional classifiers that cannot be fed from the top due to the height limitation of the plant. Side feeding also reduces the feeding height of the elevator, saving the feeding energy consumption of the elevator. The structure of the classifier is also simplified, and the subsequent manufacturing and maintenance costs are reduced. Attached Figure Description
[0022] Figure 1 This is a longitudinal sectional view of a side-feed air classifier according to the present invention.
[0023] Figure 2 yes Figure 1 A magnified schematic diagram of the structure at point A in the middle.
[0024] In the picture:
[0025] 1. First power module; 101. First motor; 102. First drive shaft;
[0026] 2. Air outlet housing; 201. Air outlet;
[0027] 3. Sorting the upper shell;
[0028] 4. Sorting the lower shell;
[0029] 5. Air inlet housing; 501. Air inlet; 502. Louver valve;
[0030] 6. Discharge shell;
[0031] 7. Rotary wheel;
[0032] 8. Fixed wheel;
[0033] 9. Feeding channel; 901. Discharge port;
[0034] 10. Cone;
[0035] 11. Spreading disc; 1101. Distributing blades;
[0036] 12. Material handling channel;
[0037] 13. Second power module; 1301. Second motor; 1302. Second drive shaft. Detailed Implementation
[0038] like Figures 1-2 As shown, this embodiment is achieved through the following technical solution: the interior of the shell module is provided with an impeller module and a material spreading disc 11 for sorting materials, and the impeller module is located above the material spreading disc 11; the top and bottom of the shell module are respectively provided with a first power module 1 and a second power module 13.
[0039] The output end of the first power module 1 is connected to the moving part of the impeller module; the feeding disc 11 is connected to the output end of the second power module 13.
[0040] The housing module is equipped with a material cone 10 and a middle material channel 12 for receiving the materials sorted by the impeller module; the material discharged from the output end of the material cone 10 can pass through the spreading disc 11 and be discharged into the middle material channel 12.
[0041] The side of the housing module is provided with several feeding channels 9, through which the materials to be sorted can be conveyed to the spreading plate 11.
[0042] Specifically, the housing module includes: an air outlet housing 2, a sorting upper housing 3, a sorting lower housing 4, an air inlet housing 5, and a material outlet housing 6, connected sequentially from top to bottom.
[0043] An air outlet 201 is provided on the side of the air outlet housing 2; the air outlet housing 2 can be connected to an external fan through the air outlet 201. When the fan is working, the airflow enters the housing module from the air inlet 501 and is discharged from the air outlet 201. At this time, the inside of the housing module is a negative pressure environment.
[0044] An air inlet 501 is provided on the side of the air inlet housing 5, and a louvered valve 502 for adjusting the air intake is provided on the air inlet 501.
[0045] Specifically, the first power module 1 includes a first motor 101, and a first drive shaft 102 is connected to the output end of the first motor 101.
[0046] The first motor 101 is fixedly connected to the top of the air outlet housing 2; the first drive shaft 102 passes through the inside of the housing module.
[0047] Specifically, the impeller module includes: a rotating impeller 7 and a fixed impeller 8 coaxially nested; the rotating impeller 7 and the fixed impeller 8 are each uniformly provided with a plurality of blades distributed in a grid pattern; in this embodiment, the rotating impeller 7 is disposed inside the fixed impeller 8, such as... Figure 1 As shown.
[0048] The fixed wheel 8 is fixedly connected to the sorting upper shell 3, and the rotating wheel 7 is connected to the first drive shaft 102; the first power module 1 can drive the rotating wheel 7 to rotate relative to the fixed wheel 8.
[0049] Specifically, the cone 10 is fixedly connected to the bottom end of the fixed wheel 8.
[0050] The material spreading disc 11 has an opening, the discharge port of the material cone 10 is attached above the opening of the material spreading disc 11, and the middle material channel 12 is connected below the opening of the material spreading disc 11.
[0051] Specifically, the second power module 13 includes a second motor 1301, and a second drive shaft 1302 is connected to the output end of the second motor 1301.
[0052] The second motor 1301 is fixedly connected to the discharge housing 6; the second drive shaft 1302 passes through the housing module; the second drive shaft 1302 passes through the material channel 12 and is connected to the spreading disc 11.
[0053] Specifically, the spreading disc 11 is also equipped with several material dispersing blades 1101. When the spreading disc 11 rotates, the material dispersing blades 1101 can disperse the material and enhance the dispersion effect on the material.
[0054] The feeding channel 9 includes a discharge port 901, which is located above the spreading disc 11. The material to be sorted can fall onto the material spreading blades 1101 along the discharge port 901.
[0055] The specific working principle of this utility model is as follows:
[0056] When the classifier is working, the induced draft fan starts synchronously. Furthermore, the first motor 101 drives the rotating wheel 7 to rotate, and the second motor 1301 drives the spreading disc 11 to rotate. During feeding, the elevator throws the material to be sorted into the feeding channel 9, and then the material falls along the feeding channel 9 onto the rotating spreading disc 11. The spreading disc 11 evenly disperses the material. Heavier coarse materials fall directly into the discharge shell 6 for collection under gravity, while lighter materials are carried upwards by the negative pressure airflow within the shell module into the rotating wheel module for secondary sorting. The rotating wheel module contains the rotating wheel 7 and the fixed wheel 8... An annular grading zone is formed. The material passes through the blades of the fixed wheel 8 and enters the annular grading zone. It is subjected to the combined effects of the centrifugal force of the rotating wheel 7, the pulling force of the negative pressure airflow, and its own gravity. The lighter fine material passes through the blades of the rotating wheel 7 under the main action of the negative pressure airflow and is discharged to the outside for collection through the air outlet 201. The medium and coarse material is moved towards the fixed wheel 8 under the main action of the centrifugal force of the rotating wheel 7 and is finally blocked on the blades of the fixed wheel 8. The medium and coarse material is left in the annular grading zone and falls into the material cone 10 under the action of gravity. Then it is discharged and collected along the medium material channel 12.
[0057] Of course, the above description is only a preferred embodiment of this utility model and should not be considered as limiting the scope of the embodiments of this utility model. This utility model is not limited to the above examples, and all equivalent changes and improvements made by those skilled in the art within the scope of this utility model should be included in the patent coverage of this utility model.
Claims
1. A side-feed air classifier, characterized in that, include: The housing module has an impeller module and a material spreading disc (11) for sorting materials inside. The impeller module is located above the material spreading disc (11). The top and bottom of the housing module are respectively provided with a first power module (1) and a second power module (13). The output end of the first power module (1) is connected to the moving part of the impeller module; the feeding disc (11) is connected to the output end of the second power module (13); The housing module is equipped with a material cone (10) and a middle material channel (12) for receiving the material sorted by the impeller module; the material discharged from the output end of the material cone (10) can pass through the spreading plate (11) and be discharged into the middle material channel (12); The side of the housing module is provided with several feeding channels (9), and the materials to be sorted can be transported to the spreading plate (11) through the feeding channels (9).
2. The side-feed classifier according to claim 1, characterized in that, The housing module includes, from top to bottom, an air outlet housing (2), a sorting upper housing (3), a sorting lower housing (4), an air inlet housing (5), and a material outlet housing (6); An air outlet (201) is provided on the side of the air outlet housing (2); an air inlet (501) is provided on the side of the air inlet housing (5); and a louvered valve (502) for adjusting the air intake is provided on the air inlet (501).
3. A side-feed air classifier according to claim 2, characterized in that, The first power module (1) includes a first motor (101), and a first drive shaft (102) is connected to the output end of the first motor (101); The first motor (101) is fixedly connected to the top of the air outlet housing (2); the first drive shaft (102) passes through the inside of the housing module.
4. A side-feed classifier according to claim 3, characterized in that, The impeller module includes a rotating impeller (7) and a fixed impeller (8) arranged coaxially. The fixed wheel (8) is fixedly connected to the sorting upper shell (3), and the rotating wheel (7) is connected to the first drive shaft (102); the first power module (1) can drive the rotating wheel (7) to rotate relative to the fixed wheel (8).
5. A side-feed classifier according to claim 3, characterized in that, The cone (10) is fixedly connected to the bottom end of the fixed wheel (8); The material spreading disc (11) has an opening, the discharge port of the material cone (10) is attached above the opening of the material spreading disc (11), and the middle material channel (12) is connected below the opening of the material spreading disc (11).
6. A side-feed classifier according to claim 3, characterized in that, The second power module (13) includes a second motor (1301), and a second drive shaft (1302) is connected to the output end of the second motor (1301); The second motor (1301) is fixedly connected to the discharge housing (6); the second drive shaft (1302) passes through the housing module; the second drive shaft (1302) passes through the material channel (12) and is connected to the spreading disc (11).
7. A side-feed classifier according to claim 6, characterized in that, The material spreading disc (11) is also equipped with several material spreading blades (1101); The feeding channel (9) includes a discharge port (901), which is located above the spreading disc (11). The material to be sorted can fall onto the material spreading blade (1101) along the discharge port (901).