A sieving device for particle size detection of sintered ore
By using a multi-layer sieve frame structure and a reasonable slope design, the problems of insufficient vibration and inconvenient material handling in traditional sinter particle size detection devices have been solved, achieving more efficient and accurate particle size detection and convenient material handling operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG SHIHENG SPECIAL STEEL GROUP
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-26
Smart Images
Figure CN224272056U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sinter particle size detection and screening technology, and in particular to a screening device for sinter particle size detection. Background Technology
[0002] In steel production, sinter is a crucial raw material for blast furnace ironmaking. The uniformity of sinter particle size and its composition distribution significantly impact the permeability of the blast furnace, the smoothness of the burden descent, and the overall operational stability of the blast furnace. Accurately detecting sinter particle size is essential for optimizing the sintering process and ensuring stable and efficient blast furnace production. Traditional methods for sinter particle size detection largely rely on manual sieving. Workers place sinter samples on sieves with different apertures for sieving, and then determine the content of each particle size fraction through manual weighing and calculation.
[0003] To address this issue, patent CN220406305U discloses a sinter particle size analyzer, belonging to the field of screening and testing. It includes a winch feeder, a main frame, a screening frame, a motor frame, and a vibrating motor. The upper part of the main frame is a feed hopper located below the discharge port of the winch feeder. The screening frame includes a frame body with multiple parallel screen plate frames. The first and second layer screen plate frames are fixedly connected to the frame body, and the middle layer screen plate frames are connected to the frame body via symmetrically arranged transverse springs. The main frame is fixedly connected to the motor frame, and a vibrating motor is placed on the motor frame. The vibrating motor drives a vibrating push plate and the middle layer screen plate frames.
[0004] The above solution has the following problems:
[0005] 1. The vibration of the first and bottom screen frames is small. When sintered minerals of different particle sizes are attached together, they are not easily separated by vibration, which affects the accuracy of the intensity detection.
[0006] 2. The discharge ports of each layer of screen frame are only in the vertical direction, requiring the installation of receiving devices at different heights, which makes material handling more laborious. Utility Model Content
[0007] To address the problem that the vibration of the first and bottom sieve frames is relatively small, making it difficult to separate sintered minerals of different particle sizes when they are joined together, thus affecting the accuracy of particle size detection, this utility model provides a sieving device for sintered mineral particle size detection.
[0008] To solve the above problems, the technical solution adopted by this utility model is as follows:
[0009] A sinter particle size detection screening device includes a frame with multiple layers of screen frames arranged in parallel on the frame, connected as a whole. The top screen frame is suspended from the upper part of the frame by ropes. The bottom screen frames are connected to the lower part of the frame by elastic components, and a vibration motor is installed on the bottom surface of the bottom screen frames. The multiple screen frames arranged in parallel on the frame and connected as a whole, with the top screen frame suspended by ropes, can generate a certain swing amplitude during vibration, enhancing the screening effect. The bottom screen frames are connected to the lower part of the frame by elastic components and have vibration motors installed thereon. The elastic components allow the bottom screen frames to generate more elastic and buffered vibrations under the action of the vibration motors, not only driving the bottom screen frames to vibrate effectively themselves, but also uniformly transmitting the vibration to the top screen frames through the overall connection structure, making the vibration of each layer of screen frames more complete, thereby more effectively separating sinter with different particle sizes and improving the accuracy of particle size detection.
[0010] Preferably, the multi-layer screen frame is sloped relative to the horizontal plane, with a slope of 10° ≤ 20°. This ensures that the sinter slides smoothly down the screen frame, effectively preventing material accumulation and improving screening efficiency. At the same time, it prevents the sinter from sliding too quickly due to an excessively large slope, which could affect the screening accuracy. This allows sinter of different particle sizes sufficient time to fully contact the screen, thus ensuring the reliability of particle size detection results. Furthermore, the appropriate slope setting also reduces equipment operating energy consumption to some extent, optimizing overall performance.
[0011] Preferably, the slope is 15°. A 15° slope strikes a balance between the material's downward momentum and the control of screening time, allowing the sinter to slide down the screen frame at an ideal speed. This ensures that the material does not accumulate due to an excessively gentle slope, greatly improving screening efficiency, while also preventing the material from sliding down too quickly due to an excessively steep slope. This ensures that each particle size of sinter has sufficient time to fully engage with the screen, thereby improving the accuracy of particle size detection.
[0012] Preferably, the multi-layer sieve frame includes a first sieve frame, a second sieve frame, a third sieve frame, and a fourth sieve frame arranged sequentially from top to bottom; both sides of the first sieve frame are provided with hanging plates; the hanging plates are connected to the upper part of the frame by ropes; the lower part of the fourth sieve frame is provided with an installation frame; both sides of the installation frame are provided with connecting plates; the side walls of the first sieve frame, the second sieve frame, the third sieve frame, and the fourth sieve frame are all connected to the connecting plates by bolts; an elastic component is fixedly provided on the bottom surface of the installation frame, and the end of the elastic component away from the installation frame is located at the lower part of the frame.
[0013] Preferably, the elastic component includes a spring; one end of the spring is fixedly connected to the mounting frame, and the other end is fixedly connected to the frame body; a first limiting ring is provided at each corner of the bottom surface of the mounting frame to cooperate with the spring; a second limiting ring is provided on the frame body to cooperate with the spring. The connection of one end of the spring to the mounting frame and the other end to the frame body provides good elastic support for the screen frame. When the vibrating motor is working, it can effectively buffer vibration, prevent damage to the screen frame due to excessive vibration, and extend the service life of the equipment. The first limiting ring at the corner of the bottom surface of the mounting frame and the second limiting ring on the frame body cooperate with the spring to precisely limit the direction and range of the spring's extension and contraction, preventing the spring from shifting or twisting during operation, ensuring stable vibration of the screen frame, and enabling uniform screening of sinter on the screen frame. This improves the accuracy and stability of particle size detection, ensuring efficient and reliable sinter particle size detection.
[0014] Preferably, the vibrating motor is installed at the rear of the bottom surface of the fourth screen frame.
[0015] Preferably, the mounting frame includes a U-shaped frame; connecting plates are fixedly disposed on the top surfaces of the two side walls of the U-shaped frame; and a first limiting ring is fixedly disposed at the corner of the bottom surface of the U-shaped frame.
[0016] Preferably, the discharge ports of the first, second, third, and fourth screen frames are staggered in the horizontal direction. This allows sinter of different particle sizes to be dispersed horizontally during discharge. This avoids the inconvenience of needing to install receiving devices at different heights due to the concentrated discharge ports in the vertical stratification. Operators can easily collect the sinter after screening by different screen frames from the same horizontal position, according to the staggered distribution of the discharge ports, significantly reducing the difficulty of material collection, improving collection efficiency, and making the entire sinter particle size detection process more convenient and efficient.
[0017] Preferably, the discharge ports of the first and fourth screen frames are arranged front and back along the length of the multi-layer screen frame; the second and third screen frames are arranged left and right along the width of the multi-layer screen frame. This allows operators to easily collect materials from different screen frames without repeatedly operating at different heights. They can easily complete the material collection from the front and back or left and right positions on the same plane, greatly reducing the difficulty of material collection, improving material collection efficiency, and making the entire screening and testing process more convenient and efficient.
[0018] Preferably, the frame includes a rectangular frame; support legs are provided on the bottom surface of the rectangular frame; a multi-layer screen plate frame is arranged along the width direction of the rectangular frame; and an extension frame is fixedly installed on the rear side of the rectangular frame with elastic components. This provides stable support for the multi-layer screen plate frame, ensuring the stability of the screening operation and preventing the screening effect from being affected by frame swaying during operation. The multi-layer screen plate frame is arranged along the width direction of the rectangular frame, making full use of the space layout of the rectangular frame and facilitating material loading. The extension frame fixedly installed on the rear side of the rectangular frame with elastic components provides a fixed foundation for the elastic components, enhances the buffering and vibration regulation effect of the elastic components on the screen plate frame, keeps the screen plate frame stable during vibration, and thus improves the accuracy of sinter particle size detection and the stability of equipment operation.
[0019] As can be seen from the above technical solutions, the advantages of this utility model include:
[0020] 1. The frame consists of multiple layers of screen frames arranged in parallel and connected as a whole. The top screen frame is suspended by ropes, which can generate a certain swing amplitude during vibration to enhance the screening effect. The bottom screen frame is connected to the lower part of the frame through elastic components and a vibration motor is installed. The elastic components enable the bottom screen frame to generate more elastic and buffered vibration under the action of the vibration motor. This not only drives the bottom screen frame to vibrate effectively, but also transmits the vibration evenly to the top screen frame through the overall connection structure, so that the vibration of each layer of screen frames is more sufficient. This more effectively separates sintered ore with different particle sizes, improving the accuracy of particle size detection.
[0021] 2. The staggered horizontal arrangement of the discharge ports of the first, second, third, and fourth screen frames allows sinter of different particle sizes to be dispersed horizontally during discharge. This avoids the inconvenience of needing to install receiving devices at different heights due to the concentrated vertical stratification of discharge ports. Operators can easily collect the sinter after screening by different screen frames from the same horizontal position, according to the staggered distribution of discharge ports, significantly reducing the difficulty of material collection, improving material collection efficiency, and making the entire sinter particle size detection process more convenient and efficient. Attached Figure Description
[0022] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;
[0024] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;
[0025] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 ;
[0026] Figure 4 This is a schematic diagram of the structure of the second sieve plate frame of this utility model;
[0027] Figure 5 This is a schematic diagram of the structure of the third sieve frame of this utility model;
[0028] Figure 6 This is a schematic diagram of the structure of the fourth sieve plate frame of this utility model;
[0029] Figure 7 This is a schematic diagram of the mounting frame of this utility model.
[0030] Explanation of reference numerals in the attached drawings: 1-Frame, 2-Rope, 3-Vibration motor, 4-First screen plate frame, 5-Second screen plate frame, 6-Third screen plate frame, 7-Fourth screen plate frame, 8-Mounting frame, 9-Bolt, 10-Spring;
[0031] 101-Second limiting ring, 102-Rectangular frame, 103-Support leg, 104-Extension frame; 401-Hanging plate; 801-Connecting plate, 802-First limiting ring, 803-U-shaped frame. Detailed Implementation
[0032] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.
[0033] like Figure 1 and Figure 2 As shown, a sinter particle size detection screening device includes a frame 1, on which multiple layers of sieve frames are arranged in parallel and connected as a whole; the top sieve frame of the multiple layers of sieve frames is suspended from the upper part of the frame 1 by ropes 2; the bottom sieve frame of the multiple layers of sieve frames is connected to the lower part of the frame 1 by elastic components, and a vibration motor 3 is installed on the bottom surface of the bottom sieve frame of the multiple layers of sieve frames. The frame 1 includes a rectangular frame 102; the bottom surface of the rectangular frame 102 is provided with support legs 103; the multiple layers of sieve frames are arranged along the width direction of the rectangular frame 102; an extension frame 104 is fixedly provided on the rear side of the rectangular frame 102 in conjunction with the elastic components.
[0034] A multi-layered screen frame is arranged in parallel and connected as a whole on the frame 1. The top screen frame is suspended by ropes 2, which can generate a certain swing amplitude during vibration to enhance the screening effect. The bottom screen frame is connected to the lower part of the frame 1 through elastic components and a vibration motor 3 is installed. The elastic components enable the bottom screen frame to generate more elastic and buffered vibration under the action of the vibration motor 3. This not only drives the bottom screen frame to vibrate effectively, but also transmits the vibration evenly to the top screen frame through the overall connection structure, so that the vibration of each layer of screen frames is more sufficient. This more effectively separates sintered ore with different particle sizes, improving the accuracy of particle size detection. The reasonable arrangement of the frame 1 provides stable support for the multi-layered screen frame, ensuring the stability of the screening operation and avoiding the impact of the screening effect on the screening effect due to the shaking of the frame 1 during operation. The multi-layered screen frame is arranged along the width of the rectangular frame 102, making full use of the space layout of the rectangular frame 102 and facilitating the feeding operation. An extension frame 104 is fixedly installed on the rear side of the rectangular frame 102 in conjunction with the elastic component, providing a fixed foundation for the elastic component. This enhances the buffering and vibration regulation effect of the elastic component on the screen frame, keeping the screen frame stable during vibration, thereby improving the accuracy of sinter particle size detection and the stability of equipment operation.
[0035] The elastic component includes a spring 10; one end of the spring 10 is fixedly connected to the mounting frame 8, and the other end of the spring 10 is fixedly connected to the frame 1; as shown... Figure 7 As shown, a first limiting ring 802 is provided at each corner of the bottom surface of the mounting frame 8 in conjunction with a spring 10; a second limiting ring 101 is provided on the frame 1 in conjunction with a spring 10. The vibrating motor 3 is installed at the rear of the bottom surface of the fourth screen plate frame 7. The mounting frame 8 includes a U-shaped frame 803; a connecting plate 801 is fixedly installed on the top surface of both side walls of the U-shaped frame 803; and the first limiting ring 802 is fixedly installed at each corner of the bottom surface of the U-shaped frame 803.
[0036] Spring 10, acting as an elastic component, connects the mounting frame 8 and the frame 1, providing excellent elastic cushioning for the screen frame. When the vibrating motor 3 operates, it effectively absorbs and disperses vibration energy, reducing vibration loss in the screen frame and extending the equipment's service life. The first limiting ring 802 is located at the bottom corner of the mounting frame 8, and the second limiting ring 101 is located on the frame 1. Together with spring 10, they precisely limit the extension and retraction path and range of spring 10, preventing it from shifting or twisting during vibration. This ensures the stability and consistency of the screen frame vibration, thereby improving the precision of sinter screening and the accuracy of particle size detection. Vibrating motor 3 is installed at the rear bottom of the fourth screen frame 7. Its rational placement allows vibration energy to be more effectively transmitted to the entire screen frame, enhancing the screening effect. The mounting frame 8, which is composed of a U-shaped frame 803, has a simple and stable structure. The connecting plate 801 is fixed to the top surface of its two side walls, which makes it easy to connect with other screen plate frames to form a whole by bolts 9. The first limiting ring 802 is fixed at the bottom corner of the U-shaped frame 803, which further ensures the stability of the spring 10 installation and the reliability of the limiting, and improves the stability and working performance of the entire device structure.
[0037] like Figure 4 , Figure 5 and Figure 6 As shown, the multi-layer sieve frame includes a first sieve frame 4, a second sieve frame 5, a third sieve frame 6, and a fourth sieve frame 7 arranged sequentially from top to bottom; the first sieve frame 4 has hanging plates 401 on both sides; the hanging plates 401 are connected to the upper part of the frame 1 by ropes 2; the lower part of the fourth sieve frame 7 has an installation frame 8; the two sides of the installation frame 8 have connecting plates 801; the side walls of the first sieve frame 4, the second sieve frame 5, the third sieve frame 6, and the fourth sieve frame 7 are all connected to the connecting plates 801 by bolts 9; an elastic component is fixedly installed on the bottom surface of the installation frame 8, and the end of the elastic component away from the installation frame 8 is located at the lower part of the frame 1.
[0038] In the above configuration, the discharge ports of the first screen frame 4, the second screen frame 5, the third screen frame 6, and the fourth screen frame 7 are staggered. The discharge ports of the first screen frame 4 and the fourth screen frame 7 are arranged front and back along the length of the multi-layer screen frame; the second screen frame 5 and the third screen frame 6 are arranged left and right along the width of the multi-layer screen frame. This allows sinter of different particle sizes to be dispersed horizontally during discharge. This avoids the trouble of setting up receiving devices at different heights due to the discharge ports being concentrated in the vertical layer. Operators can easily collect sinter after screening by different screen frames from the same horizontal position, according to the staggered distribution of the discharge ports, greatly reducing the difficulty of material collection, improving material collection efficiency, and making the entire sinter particle size detection process more convenient and efficient.
[0039] like Figure 3As shown, the multi-layer screen frame is set at a 15° slope to the horizontal plane. This 15° slope strikes a balance between the material's downward sliding force and the control of screening time, allowing the sinter to slide down the screen frame at an ideal speed. This ensures that the material does not accumulate due to an excessively gentle slope, greatly improving screening efficiency, while also preventing the material from sliding down too quickly due to an excessively steep slope. This ensures that each particle size of sinter has sufficient time to fully engage with the screen, thus improving the accuracy of particle size detection.
[0040] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A sieving device for detecting the particle size of sintered ore, comprising a frame (1), wherein multiple layers of sieve plates are arranged in parallel on the frame (1), characterized in that, The multi-layer sieve frame is connected as a whole; the top sieve frame in the multi-layer sieve frame is suspended above the frame (1) by rope (2); the bottom sieve frame in the multi-layer sieve frame is connected to the lower part of the frame (1) by elastic component, and a vibration motor (3) is installed on the bottom surface of the bottom sieve frame in the multi-layer sieve frame.
2. The sieving device for sinter particle size detection according to claim 1, characterized in that, The multi-layer sieve frame is sloped relative to the horizontal plane, with a slope of 10° ≤ 20°.
3. The sieving device for sinter particle size detection according to claim 2, characterized in that, The slope is 15°.
4. The sieving device for sinter particle size detection according to claim 2, characterized in that, The multi-layer sieve frame includes a first sieve frame (4), a second sieve frame (5), a third sieve frame (6), and a fourth sieve frame (7) arranged sequentially from top to bottom; the first sieve frame (4) is provided with hanging plates (401) on both sides; the hanging plates (401) are connected to the upper part of the frame (1) by ropes (2); the fourth sieve frame (7) is provided with an installation frame (8) at the bottom; the installation frame (8) is provided with connecting plates (801) on both sides; the side walls of the first sieve frame (4), the second sieve frame (5), the third sieve frame (6), and the fourth sieve frame (7) are all connected to the connecting plates (801) by bolts (9); the bottom surface of the installation frame (8) is fixedly provided with an elastic component, and the end of the elastic component away from the installation frame (8) is located at the lower part of the frame (1).
5. The sieving device for sinter particle size detection according to claim 4, characterized in that, The elastic component includes a spring (10); one end of the spring (10) is fixedly connected to the mounting frame (8), and the other end of the spring (10) is fixedly connected to the frame (1); a first limiting ring (802) is provided at the bottom corner of the mounting frame (8) in conjunction with the spring (10); a second limiting ring (101) is provided on the frame (1) in conjunction with the spring (10).
6. The sieving device for sinter particle size detection according to claim 5, characterized in that, The vibrating motor (3) is installed at the rear of the bottom surface of the fourth screen frame (7).
7. The sieving device for sinter particle size detection according to claim 6, characterized in that, The mounting frame (8) includes a square frame (803); a connecting plate (801) is fixedly installed on the top surface of both sides of the square frame (803); and a first limiting ring (802) is fixedly installed at the corner of the bottom surface of the square frame (803).
8. The sieving device for sinter particle size detection according to claim 7, characterized in that, The discharge ports of the first screen frame (4), the second screen frame (5), the third screen frame (6) and the fourth screen frame (7) are staggered in the horizontal direction.
9. The sieving device for sinter particle size detection according to claim 8, characterized in that, The discharge ports of the first screen frame (4) and the fourth screen frame (7) are arranged front and back along the length of the multi-layer screen frame; the second screen frame (5) and the third screen frame (6) are arranged left and right along the width of the multi-layer screen frame.
10. The sieving device for sinter particle size detection according to claim 4, characterized in that, The frame (1) includes a rectangular frame (102); the bottom surface of the rectangular frame (102) is provided with support legs (103); the multi-layer sieve plate frame is provided along the width direction of the rectangular frame (102); an extension frame (104) is fixedly provided on the rear side of the rectangular frame (102) in conjunction with an elastic component.