A screening device for finished metal pellets

By using a screening device with a conical drum and gear meshing structure, combined with a vibrating motor design, the problem of insufficient screening accuracy was solved, enabling precise classification and smooth feeding of pellets, and improving firing efficiency.

CN224475320UActive Publication Date: 2026-07-10KEOU METALLURGICAL ENGINEERING TECHNOLOGY (JIANGSU) CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KEOU METALLURGICAL ENGINEERING TECHNOLOGY (JIANGSU) CO LTD
Filing Date
2025-08-20
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

The existing finished pellet screening device has insufficient screening accuracy, which affects the subsequent firing effect.

Method used

It adopts a symmetrical rotating conical drum and gear meshing structure, combined with a vibrating motor design, to achieve efficient screening, and ensures smooth material feeding through an efficient anti-clogging feeding mechanism.

Benefits of technology

It enables precise sieving of pellets of different sizes, reduces the probability of clogging, and improves the efficiency and smoothness of subsequent firing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the pellet technical field, concretely relates to a finished product metal pellet's screening device. Including fixed frame, fixed frame inside fixed mounting has the fixed frame, the fixed frame all even insert joint connection has a plurality of collection frame, the fixed frame on the corresponding collection frame is equipped with high -efficient screening mechanism, the fixed frame is equipped with high -efficient anti -blockking unloading mechanism. The utility model discloses through the structure improvement and optimization, through the symmetrical parallel placement's conical drum, can effectively realize the screening of the pellet of different size, and fall into the corresponding size range's collection frame, the overall screening is more refined, is favorable for improving the efficiency of the later firing, through the design of vibration motor, also can make the overall work more smooth, reduces the probability of appearing the block.
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Description

Technical Field

[0001] This utility model belongs to the field of pellet technology, specifically relating to a screening device for finished metal pellets. Background Technology

[0002] Pelletizing is one of the important methods for agglomerating fine ore. First, the fine ore is mixed with an appropriate amount of water and binder to form green pellets with uniform viscosity and sufficient strength. After drying and preheating, the green pellets are roasted in an oxidizing atmosphere to agglomerate and form pellet ore. This method is particularly suitable for processing fine concentrate powder.

[0003] As disclosed in publication (announcement) number CN216441074U, this utility model discloses a screening device for finished pellets, including a box body. A support is fixedly connected to the side wall of the box body. A first side plate is fixedly connected to one end of an inner plate, with a clearance fit between the side wall of the first side plate and the box body. A second side plate is also fixedly fitted to the side wall of the inner plate. A support plate is fixedly connected to the upper surface of the inner plate. A baffle is fixedly connected to the inner wall of the box body. Pipes are symmetrically installed at the bottom of the box body. A certain gap exists between the first and second side plates and the box body. A vibrating motor causes the inner plate to vibrate. Small pellets fall through holes on the surface of the inner plate, while larger pellets continue to roll through holes in the support plate and are discharged through holes on the other side of the inner plate. This allows for the classification of pellets of different sizes, with pellets of the same size discharged from one side, facilitating subsequent classification and storage. This also prevents incomplete combustion of pellets of different sizes, thus avoiding interference with non-ferrous metal smelting.

[0004] Analysis revealed that the current method can only screen pellets through the holes in the inner plate and support plate, resulting in a relatively coarse overall screening finish with insufficient precision, which will affect the subsequent firing process. To address these issues, the method needs to be optimized and improved. Utility Model Content

[0005] To address the problems existing in the background technology, this utility model provides a screening device for finished metal pellets; it can accurately screen pellets of various sizes and ensure a smooth screening process.

[0006] This utility model provides a screening device for finished metal pellets, including a fixed frame, a fixed bracket fixedly installed inside the fixed frame, a plurality of collection frames evenly inserted and connected to the fixed bracket, a high-efficiency screening mechanism corresponding to the collection frames on the fixed frame, and a high-efficiency anti-clogging feeding mechanism on the fixed frame; the high-efficiency screening mechanism includes a conical roller symmetrically rotatably connected between the fixed frames, the conical roller being located above the plurality of collection frames, a gear one symmetrically rotatably connected to one side of the fixed frame corresponding to the conical roller, the gear one being fixedly connected to the conical roller, a gear two rotatably connected to the fixed frame corresponding to the gear one, the gear one and gear two meshing with each other, the gear two meshing with each other, a support plate fixedly installed on the fixed frame, a motor fixedly installed on the support plate, and the output end of the motor being fixedly connected to one of the gear two.

[0007] Furthermore, the high-efficiency anti-clogging feeding mechanism includes a slide groove located on a fixed frame, a support rod symmetrically slidably connected to the slide groove, a feeding hopper fixedly installed on the support rod, a vibration motor fixedly installed on the lower side of the feeding hopper, brackets symmetrically fixedly installed on the feeding hopper, and a limit rod fixedly installed on the fixed frame, the limit rod being plugged into the bracket.

[0008] Furthermore, springs are symmetrically fixedly installed on the limiting rod, and the other end of the springs is fixedly connected to the bracket.

[0009] Furthermore, the bracket is slidably connected to the fixed frame.

[0010] Furthermore, the hopper is designed to be inclined.

[0011] Furthermore, a handle is fixedly installed on the collection frame.

[0012] Furthermore, a limiting plate is fixedly installed on the conical roller.

[0013] The beneficial effects of this utility model are:

[0014] This invention, through structural improvements and optimizations, utilizes symmetrically placed parallel conical rollers to effectively screen pellets of different sizes, allowing them to fall into collection frames within the corresponding size range. This results in finer overall screening, which improves the efficiency of subsequent firing. The design of the vibrating motor also makes the overall operation smoother and reduces the probability of blockages. Attached Figure Description

[0015] Figure 1 This is a top perspective view of a screening device for finished metal pellets according to the present invention.

[0016] Figure 2 This is a bottom perspective view of a screening device for finished metal pellets according to the present invention.

[0017] Figure 3 This is a top view of a screening device for finished metal pellets according to the present invention.

[0018] Figure 4 This is a schematic diagram of area A of a screening device for finished metal pellets according to this utility model.

[0019] Figure 5 This is a schematic diagram of area B of a screening device for finished metal pellets according to this utility model.

[0020] As shown in the figure:

[0021] 1. Fixed frame, 2. Fixed bracket, 3. Collection frame, 4. Conical roller, 5. Gear 1, 6. Gear 2, 7. Support plate, 8. Motor, 9. Slide groove, 10. Support rod, 11. Feed hopper, 12. Vibrating motor, 13. Bracket, 14. Limiting rod, 15. Spring, 16. Handle, 17. Limiting plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please refer to the accompanying diagrams for all instruction manuals:

[0025] A screening device for finished metal pellets includes a fixed frame 1, a fixed bracket 2 fixedly installed inside the fixed frame 1, a plurality of collection frames 3 evenly inserted and connected on the fixed bracket 2, a high-efficiency screening mechanism corresponding to the collection frames 3 on the fixed frame 1, and a high-efficiency anti-blocking feeding mechanism on the fixed frame 1.

[0026] The high-efficiency screening mechanism includes a conical roller 4 symmetrically rotatably connected between fixed frames 1. The conical roller 4 is located above several collection frames 3. A gear 5 is symmetrically rotatably connected to one side of the fixed frame 1 corresponding to the conical roller 4. The gear 5 is fixedly connected to the conical roller 4. A gear 6 is rotatably connected to the fixed frame 1 corresponding to the gear 5. The gear 5 and the gear 6 mesh with each other. The gears 6 mesh with each other. A support plate 7 is fixedly installed on the fixed frame 1. A motor 8 is fixedly installed on the support plate 7. The output end of the motor 8 is fixedly connected to one of the gears 6.

[0027] As described above, when motor 8 operates, it drives gear 6 to rotate, which in turn drives gear 5 to rotate. Utilizing the structural relationship, the two conical rollers 4 rotate clockwise and counterclockwise respectively. When balls of different sizes fall between the two conical rollers 4, they will move up and down due to the rotation of the rollers 4 and the weight of the balls. During this falling process, the gap between the rollers 4 increases, allowing balls of the correct size to fall through the gap into the corresponding collection frame 3. The collection frame 3 can then collect balls that meet the size requirements.

[0028] As a technical optimization of this utility model, the high-efficiency anti-blocking feeding mechanism includes a slide groove 9 located on a fixed frame 1, a support rod 10 symmetrically slidably connected to the slide groove 9, a feeding hopper 11 fixedly installed on the support rod 10, a vibration motor 12 fixedly installed on the lower side of the feeding hopper 11, a bracket 13 symmetrically fixedly installed on the feeding hopper 11, and a limit rod 14 fixedly installed on the fixed frame 1, with the limit rod 14 and the bracket 13 plugged into each other.

[0029] As described above, the pellets fall through the feed hopper 11 and land between the two conical rollers 4. The vibrating motor 12 on the feed hopper 11 works, causing the feed hopper 11 to vibrate laterally, which reduces the probability of the pellets clogging the feed hopper 11 and makes the feeding process smoother.

[0030] As a technical optimization of this utility model, springs 15 are symmetrically fixedly installed on the limiting rod 14, and the other end of the springs 15 is fixedly connected to the bracket 13.

[0031] As can be seen from the above description, the spring 15 can release pressure at both ends simultaneously. When the vibrating motor 12 is not working, the hopper 11 is located in the middle of the chute 9. When the vibrating motor 12 is working, it can amplify the vibration generated by the vibrating motor 12, making the feeding of pellets smoother.

[0032] As a technical optimization of this utility model, the bracket 13 is slidably connected to the fixed frame 1;

[0033] As can be seen from the above description, the sliding connection method makes the movement stability of the bracket 13 better.

[0034] As a technical optimization of this utility model, the hopper 11 is designed to be inclined;

[0035] As can be seen from the above description, the hopper 11 is tilted toward the collection frame 3 and can move on its own using the gravity of the pellets.

[0036] As a technical optimization of this utility model, a handle 16 is fixedly installed on the collection box 3;

[0037] As can be seen from the above description, the collection box 3 on the fixing frame 2 can be easily removed and put back using the handle 16.

[0038] As a technical optimization of this utility model, a limiting plate 17 is fixedly installed on the conical roller 4;

[0039] As can be seen from the above description, the limiting plate 17 can improve the stability of the conical roller 4 and the fixed frame 1 when they rotate.

[0040] The working process of this utility model is as follows:

[0041] Start motor 8 and vibration motor 12; motor 8 works, driving gear 2 6 to rotate, driving gear 1 5 to rotate, utilizing the structural relationship so that the two conical rollers 4 will rotate clockwise and counterclockwise respectively; vibration motor 12 can drive the feed hopper 11 to vibrate laterally, and the vibration can be amplified to a certain extent by spring 15; the pellets are placed on the feed hopper 11, and the pellets fall down towards the opening of the feed hopper 11 under the action of gravity; when pellets of different sizes fall between the two conical rollers 4, with the rotation of the conical rollers 4 and the gravity of the pellets, they will fall up and down on the conical rollers 4. During the falling process, the gap between the conical rollers 4 will increase, and the pellets that meet the size requirements will fall into the corresponding collection frame 3 through the gap, and the corresponding collection frame 3 can collect the pellets that meet the size requirements.

[0042] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A screening device for finished metal pellets, comprising a fixed frame, characterized in that: A fixed frame is fixedly installed inside the fixed frame. Several collection frames are evenly inserted and connected to the fixed frame. A high-efficiency screening mechanism is provided on the fixed frame corresponding to the collection frames. A high-efficiency anti-clogging feeding mechanism is provided on the fixed frame. The high-efficiency screening mechanism includes a conical roller symmetrically rotatably connected between the fixed frames. The conical roller is located above the several collection frames. A gear one is symmetrically rotatably connected to one side of the fixed frame corresponding to the conical roller. The gear one is fixedly connected to the conical roller. A gear two is rotatably connected to the fixed frame corresponding to the gear one. The gear one and gear two mesh with each other. A support plate is fixedly installed on the fixed frame. A motor is fixedly installed on the support plate. The output end of the motor is fixedly connected to one of the gear two.

2. The screening device for finished metal pellets according to claim 1, characterized in that: The high-efficiency anti-clogging feeding mechanism includes a slide groove located on a fixed frame, a support rod symmetrically slidably connected to the slide groove, a feeding hopper fixedly installed on the support rod, a vibration motor fixedly installed on the lower side of the feeding hopper, brackets symmetrically fixedly installed on the feeding hopper, and a limit rod fixedly installed on the fixed frame, the limit rod being plugged into the bracket.

3. The screening device for finished metal pellets according to claim 2, characterized in that: Springs are symmetrically fixedly installed on the limiting rod, and the other end of the spring is fixedly connected to the bracket.

4. The screening device for finished metal pellets according to claim 2, characterized in that: The bracket is slidably connected to the fixed frame.

5. The screening device for finished metal pellets according to claim 2, characterized in that: The hopper is designed to be inclined.

6. The screening device for finished metal pellets according to claim 1, characterized in that: A handle is fixedly installed on the collection frame.

7. The screening device for finished metal pellets according to claim 1, characterized in that: A limit plate is fixedly installed on the conical roller.