Multi-stage screening mechanism
By designing a multi-stage screening mechanism, the material is diverted to different discharge ports using guide plates and feed pipes, which solves the problem of waste of qualified particles caused by single-layer screens and achieves a more efficient screening effect.
Patent Information
- Application Number
- CN202511312097.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-15
- Publication Date
- 2025-11-07
AI Technical Summary
Existing screening equipment uses a single-layer screen, which causes a large number of qualified particles to be discharged from the side outlet along with coarse particles, resulting in material waste.
A multi-stage screening mechanism is adopted, including a vibration mechanism, first and second screening units, a guide plate and a guide pipe. Through multi-stage screening, qualified materials are prevented from being discharged with coarse particles. The guide plate and the guide pipe are used to divert the material to different discharge ports to achieve multiple screenings.
It effectively improves screening efficiency, avoids waste of qualified materials, and enhances screening accuracy and efficiency.
Smart Images
Figure CN120900938A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of screening devices, in particular to a multi-stage screening mechanism. BACKGROUND
[0002] Lithium battery positive electrode materials (such as ternary materials, lithium cobaltate, etc.) need to be screened after being broken and powdered to remove coarse particles with a diameter greater than 50pm. The commonly used screening equipment is an ultrasonic rotary screen, and the principle is that when the material makes three-dimensional motion on the screen surface, fine particles pass through the screen, and coarse particles are discharged from the lateral outlet.
[0003] However, since the existing screening equipment uses a single layer of screen for screening, a large number of qualified particles are easily discharged from the lateral outlet along with the coarse particles, causing a large amount of material to be wasted. SUMMARY
[0004] Therefore, the embodiments of the present application provide a multi-stage screening mechanism to solve the problem that the existing screening equipment easily causes a large number of qualified particles to be discharged from the lateral outlet along with the coarse particles and wasted.
[0005] To achieve the above object, the embodiments of the present application provide the following technical solutions:
[0006] A multi-stage screening mechanism comprises a vibrating mechanism, a first screening unit, a second screening unit, a first baffle, a first material guide pipe, a second material guide pipe and a discharge pipe.
[0007] The first screening unit and the second screening unit are arranged from top to bottom on the vibrating mechanism, and the vibrating mechanism is used to drive the first screening unit and the second screening unit to vibrate.
[0008] The first screening unit comprises a first outer frame and a first screen arranged in the first outer frame.
[0009] The first outer frame is provided with a first discharge port, and the first discharge port is located on one side of the first screen.
[0010] The second screening unit comprises a second outer frame and a second screen arranged in the second outer frame.
[0011] The second outer frame is provided with a first inlet, a second discharge port, a third discharge port and a fourth discharge port on both sides, wherein the second discharge port is located on one side of the second screen, the third discharge port is located above the second screen, and the fourth discharge port is located below the second screen.
[0012] The discharge pipe is arranged at the fourth discharge port.
[0013] The first baffle is arranged at a preset angle between the first screen and the second screen, and is used to transport the material passing through the first screen to the third discharge port.
[0014] One end of the first material guide pipe is connected with the first discharge port, and the other end is connected with the first feeding port;
[0015] One end of the second material guide pipe is connected with the third discharge port, and the other end is communicated with the discharge pipe.
[0016] Preferably, the second outer frame is provided with a plurality of first observation windows.
[0017] Preferably, the first screen and the second screen are the same;
[0018] The first screen comprises a functional screen and a supporting screen;
[0019] The functional screen is arranged above the supporting screen, and the supporting screen is used for supporting the functional screen.
[0020] Preferably, the first screening unit further comprises an upper cover.
[0021] The upper cover is provided with a second feeding port for communicating with an external material pipe.
[0022] Preferably, the second feeding port is located at the center of the upper cover.
[0023] Preferably, the upper cover is further provided with a plurality of second observation windows.
[0024] Preferably, it further comprises a third material guide pipe;
[0025] The third material guide pipe is arranged below the first flow guide plate at a preset angle, one end of the third material guide pipe is connected with the first feeding port, and the other end of the third material guide pipe is located above the axis of the second screen.
[0026] Preferably, the three material guide pipes are arranged in parallel with the first flow guide plate.
[0027] Preferably, the third material guide pipe is fixed to the first flow guide plate.
[0028] Preferably, it further comprises a second flow guide plate;
[0029] The second flow guide plate is arranged below the second screen at a preset angle, and the second flow guide plate is used for conveying the material passing through the second screen to the fourth discharge port.
[0030] Based on the above-mentioned multi-stage screening mechanism of the present application, the first screening unit and the second screening unit are arranged from top to bottom on the vibration mechanism, and are driven to vibrate by the vibration mechanism, the first screen is arranged in the first outer frame, the first outer frame is provided with the first discharge port, and the first discharge port is located on one side of the first screen, the second screen is arranged in the second outer frame, and the second outer frame is provided with the first feeding port, the second discharge port, the third discharge port and the fourth discharge port on both sides, the second discharge port is located on one side of the second screen, the third discharge port is located above the second screen, the fourth discharge port is located below the second screen, the discharge pipe is arranged at the fourth discharge port, the first flow guide plate is arranged at a preset angle between the first screen and the second screen to convey the material passing through the first screen to the third discharge port, one end of the first material guide pipe is connected with the first discharge port, and the other end is connected with the first feeding port, one end of the second material guide pipe is connected with the third discharge port, and the other end is in communication with the discharge pipe. Through the above-mentioned multi-stage screening mechanism, after the material is screened through the first screen, the material that does not pass through the first screen enters the second screen again through the first material guide pipe for re-screening, so as to avoid qualified materials from being discharged with coarse particle materials. Compared with the existing single-layer screen screening device, the screening efficiency can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS
[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.
[0032] Figure 1 A structural schematic view of a multi-stage screening mechanism provided by the embodiment of the present application;
[0033] Figure 2 A sectional view of the multi-stage screening mechanism provided by the embodiment of the present application;
[0034] Figure 3 A structural schematic view of the first screen provided by the embodiment of the present application.
[0035] Among them, the vibration mechanism 1; the first outer frame 21, the first discharge port 211, the first screen 22, the functional screen 221, the support screen 222, the upper cover 23, the second feeding port 231, the second observation window 232; the second outer frame 31, the first feeding port 311, the second discharge port 312, the third discharge port 313, the fourth discharge port 314, the second screen 32; the first flow guide plate 4; the first material guide pipe 5; the second material guide pipe 6; the discharge pipe 7; the third material guide pipe 8; the second flow guide plate 9. DETAILED DESCRIPTION
[0036] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present application.
[0037] In the present application, the term "comprising", "containing" or any other variant thereof is intended to cover the non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes the elements inherent to such process, method, article or equipment. Without more limitations, the element defined by the sentence "including a" does not exclude the existence of other same elements in the process, method, article or equipment including the element.
[0038] The embodiment of the present application provides a multi-stage screening mechanism, referring to Figure 1 , and combining Figure 2 , Figure 1 is a structural schematic diagram of the multi-stage screening mechanism, the multi-stage screening mechanism comprises a vibrating mechanism 1, a first screening unit, a second screening unit, a first guide plate 4, a first material guide pipe 5, a second material guide pipe 6 and a discharge pipe 7;
[0039] The first screening unit and the second screening unit are arranged from top to bottom on the vibrating mechanism 1, and the vibrating mechanism 1 is used for driving the first screening unit and the second screening unit to vibrate;
[0040] The first screening unit comprises a first outer frame 21 and a first screen 22 arranged in the first outer frame 21;
[0041] The first outer frame 21 is provided with a first discharge port 211, and the first discharge port 211 is located on one side of the first screen 22;
[0042] The second screening unit comprises a second outer frame 31 and a second screen 32 arranged in the second outer frame 31;
[0043] The second outer frame 31 is provided with a first feeding port 311, a second discharge port 312, a third discharge port 313 and a fourth discharge port 314 on both sides, wherein the second discharge port 312 is located on one side of the second screen 32, the third discharge port 313 is located above the second screen 32, and the fourth discharge port 314 is located below the second screen 32;
[0044] The discharge pipe 7 is arranged at the fourth discharge port 314;
[0045] The first guide plate 4 is arranged at a preset angle between the first screen 22 and the second screen 32, and is used for conveying the material passing through the first screen 22 to the third discharge port 313.
[0046] One end of the first material guide pipe 5 is connected with the first discharge port 211, and the other end is connected with the first feeding port 311.
[0047] One end of the second material guide pipe 6 is connected with the third discharge port 313, and the other end is communicated with the discharge pipe 7.
[0048] It should be noted that the first guide plate 4 is arranged at a preset angle between the first screen 22 and the second screen 32, and the lower end of the first guide plate 4 is connected with the third discharge port 313, so that the material passing through the first screen 22 will directly fall on the first guide plate 4. Since the first guide plate 4 is arranged at a certain angle, the material will move along the inclined direction of the first guide plate 4 under the action of the vibration mechanism 1 and its own gravity, until it enters the third discharge port 313. The material that does not pass through the first screen 22 enters the upper side of the second screen 32 through the first discharge port 211, the first material guide pipe 5 and the first feeding port 311. The second screen 32 is vibrated under the driving of the vibration mechanism 1. At this time, the qualified material passes through the second screen 32, and then enters the discharge pipe 7 from the fourth discharge port 314 to be discharged. The material that does not pass through the second screen 32 is discharged from the second discharge port 312.
[0049] Since one end of the second material guide pipe 6 is connected with the third discharge port 313, and the other end is communicated with the discharge pipe 7, the material passing through the first screen 22 is conveyed to the discharge pipe 7 through the second material guide pipe 6 to be discharged.
[0050] The first screening unit and the second screening unit are arranged from top to bottom on the vibration mechanism 1, and are driven to vibrate by the vibration mechanism 1, the first screen 22 is arranged in the first outer frame 21, the first outer frame 21 is provided with a first discharge port 211, and the first discharge port 211 is located on one side of the first screen 22, the second screen 32 is arranged in the second outer frame 31, and the second outer frame 31 is provided with a first feeding port 311, a second discharge port 312, a third discharge port 313 and a fourth discharge port 314 on two sides, the second discharge port 312 is located on one side of the second screen 32, the third discharge port 313 is located above the second screen 32, the fourth discharge port 314 is located below the second screen 32, the discharge pipe 7 is arranged at the fourth discharge port 314, the first guide plate 4 is arranged between the first screen 22 and the second screen 32 at a preset angle, so as to convey the material passing through the first screen 22 to the third discharge port 313, one end of the first guide pipe 5 is connected with the first discharge port 211, and the other end is connected with the first feeding port 311, one end of the second guide pipe 6 is connected with the third discharge port 313, and the other end is connected with the discharge pipe 7. Through the above-mentioned multi-stage screening mechanism, after the material is screened through the first screen 22, the material that does not pass through the first screen 22 enters the second screen 32 through the first guide pipe 5 for re-screening, so as to avoid qualified materials from being discharged with coarse particle materials, and compared with the existing single-layer screen screening equipment, the screening efficiency can be effectively improved.
[0051] Preferably, the inclination angle of the first guide plate 4 is 25° to 35°.
[0052] Specifically, the second outer frame 31 is provided with a plurality of first observation windows.
[0053] It should be noted that by arranging a plurality of first observation windows on the second outer frame 31, the screening situation of the second screen 32 can be conveniently observed by the staff.
[0054] Preferably, the plurality of first observation windows are evenly arranged along the circumference of the second outer frame 31.
[0055] It should be noted that by arranging a plurality of first observation windows along the circumference of the second outer frame 31, the staff can observe the screening situation of the second screen 32 from different angles.
[0056] Specifically, referring to Figure 3 , the first screen 22 and the second screen 32 are the same;
[0057] The first screen 22 comprises a functional screen 221 and a support screen 222;
[0058] The functional screen 221 is arranged above the support screen 222, and the support screen 222 is used for supporting the functional screen 221.
[0059] It should be noted that the functional net 221 of the present application is mainly for screening materials, and the supporting net 222 is mainly for supporting the functional net 221 to avoid deformation and failure of the functional net 221, thereby effectively prolonging the service life of the functional net 221.
[0060] Preferably, the functional net 221 is a fine screen mesh with more than 200 meshes, and the supporting net 222 is a 30-mesh stainless steel mesh, which is made of 0.3 mm wire diameter.
[0061] Preferably, the fine screen mesh is a stainless steel screen mesh or a non-metal screen mesh.
[0062] Specifically, the first screening unit further comprises an upper cover 23.
[0063] The upper cover 23 is provided with a second feeding port 231 for communicating with an external feeding pipe.
[0064] It should be noted that by providing the second feeding port 231 in the upper cover 23 for communicating with the external feeding pipe, materials can be continuously fed to the first screening unit through the external feeding pipe.
[0065] Specifically, the second feeding port 231 is located at the center of the upper cover 23.
[0066] It should be noted that the second feeding port 231 is provided at the center of the upper cover 23, so that the materials entering through the external feeding pipe can fall exactly at the center position of the first screen mesh 22, thereby improving the screening efficiency of the first screen mesh 22.
[0067] Specifically, the upper cover 23 is further provided with a plurality of second observation windows 232.
[0068] It should be noted that by providing the plurality of second observation windows 232 in the upper cover 23, the staff can conveniently observe the screening condition of the first screen mesh 22.
[0069] Preferably, the plurality of second observation windows 232 are uniformly arranged circumferentially along the second feeding port 231.
[0070] It should be noted that the plurality of first observation windows are uniformly arranged circumferentially along the second feeding port 231, so that the staff can observe the screening condition of the first screen mesh 22 from different angles.
[0071] Further, the multi-stage screening mechanism further comprises a third guide pipe 8.
[0072] The third guide pipe 8 is arranged below the first guide plate 4 at a preset angle, one end of the third guide pipe 8 is connected with the first feeding port 311, and the other end of the third guide pipe 8 is located above the axis of the second screen mesh 32.
[0073] It should be noted that the third material guide pipe 8 is arranged below the first flow guide plate 4 at a preset angle, one end of the third material guide pipe 8 is connected with the first feeding port 311, and the other end of the third material guide pipe 8 is located above the axis of the second screen 32. The third material guide pipe 8 can transport the material that does not pass through the first screen 22 to the center position of the second screen 32, so as to improve the screening efficiency of the second screen 32.
[0074] Specifically, the third material guide pipe 8 is arranged parallel to the first flow guide plate 4.
[0075] It should be noted that the third material guide pipe 8 can be arranged parallel to the first flow guide plate 4, or can not be arranged parallel to the first flow guide plate 4. Those skilled in the art can choose according to the needs.
[0076] Specifically, the third material guide pipe 8 is fixed to the first flow guide plate 4.
[0077] It should be noted that fixing the third material guide pipe 8 to the first flow guide plate 4 can effectively fix the third material guide pipe 8 and avoid shaking of the third material guide pipe 8.
[0078] It should be further noted that the third material guide pipe 8 can be fixed to the first flow guide plate 4 by welding, or can be fixed to the first flow guide plate 4 by bolt fixing. Those skilled in the art can choose according to the needs.
[0079] Further, the multi-stage screening mechanism further comprises a second flow guide plate 9.
[0080] The second flow guide plate 9 is arranged below the second screen 32 at a preset angle, and the second flow guide plate 9 is used for transporting the material passing through the second screen 32 to the fourth discharge port 314.
[0081] It should be noted that by arranging the second flow guide plate 9 below the second screen 32, and the lower end of the second flow guide plate 9 is connected with the fourth discharge port 314, the material passing through the second screen 32 will directly fall on the second flow guide plate 9. Since the second flow guide plate 9 is arranged at a certain angle, the material will move along the inclined direction of the second flow guide plate 9 under the action of the vibration mechanism 1 and its own gravity, until it enters the fourth discharge port 314.
[0082] Preferably, the number of second screening units is multiple, and the multiple second screening units are stacked.
[0083] It should be noted that by arranging multiple second screening units and stacking the multiple second screening units, the multiple second screening units can screen the qualified material that does not pass through multiple times, further reducing the waste of qualified material.
[0084] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and, while certain modifications are discussed, it is desired to be protected in accordance with the spirit and scope of the application. Therefore, the application is not limited to the specific embodiments shown and described, but only by the scope of the appended claims, unless otherwise specified.
Claims
1. A multi-stage screening mechanism, characterized in that, At least comprising: a vibrating mechanism, a first screening unit, a second screening unit, a first flow guide plate, a first material guide pipe, a second material guide pipe and a discharge pipe; the first screening unit and the second screening unit are arranged from top to bottom on the vibrating mechanism, and the vibrating mechanism is used to drive the first screening unit and the second screening unit to vibrate; the first screening unit comprises a first outer frame and a first screen arranged in the first outer frame; the first outer frame is provided with a first discharge port, and the first discharge port is located on one side of the first screen; the second screening unit comprises a second outer frame and a second screen arranged in the second outer frame; the second outer frame is provided with a first inlet, a second discharge port, a third discharge port and a fourth discharge port on both sides, wherein the second discharge port is located on one side of the second screen, the third discharge port is located above the second screen, and the fourth discharge port is located below the second screen; the discharge pipe is arranged at the fourth discharge port; the first flow guide plate is arranged at a preset angle between the first screen and the second screen, and is used to convey the material passing through the first screen to the third discharge port; one end of the first material guide pipe is connected with the first discharge port, and the other end is connected with the first inlet; one end of the second material guide pipe is connected with the third discharge port, and the other end is in communication with the discharge pipe.
2. The multi-stage screening mechanism of claim 1, wherein, The second outer frame is provided with a plurality of first observation windows.
3. The multi-stage screening mechanism of claim 1, wherein, The first screen and the second screen are the same; the first screen comprises a functional screen and a supporting screen; the functional screen is arranged above the supporting screen, and the supporting screen is used to support the functional screen.
4. The multi-stage screening mechanism of claim 1, wherein, The first screening unit further comprises an upper cover. The upper cover is provided with a second inlet for communication with an external material pipe.
5. The multi-stage screening mechanism of claim 4, wherein, The second inlet is located at the center of the upper cover.
6. The multi-stage screening mechanism of claim 4, wherein, The upper cover is further provided with a plurality of second observation windows.
7. The multi-stage screening mechanism of claim 1, wherein, Further comprising: a third material guide pipe; the third material guide pipe is arranged below the first flow guide plate at a preset angle, one end of the third material guide pipe is connected with the first inlet, and the other end of the third material guide pipe is located above the axis of the second screen.
8. The multi-stage screening mechanism of claim 7, wherein, The third material guide pipe is arranged in parallel with the first flow guide plate.
9. The multi-stage screening mechanism of claim 8, wherein, The third material guide pipe is fixed to the first flow guide plate.
10. The multi-stage screening mechanism of claim 1, wherein, Further comprising: a second flow guide plate; the second flow guide plate is arranged below the second screen at a preset angle, and is used to convey the material passing through the second screen to the fourth discharge port.