Multi-stage screening equipment
By using Z-shaped rotary rods driven by servo motors in multi-stage screening equipment, the uneven load of the screen mesh caused by uneven feeding of the hopper in existing equipment is solved, and the screening accuracy is improved and equipment life.
Patent Information
- Application Number
- CN202421837434.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-07-31
AI Technical Summary
During the screening process of calcium carbonate powder, the existing multi-stage screening equipment causes uneven screen load due to uneven feeding of the hopper, which reduces the screening efficiency and increases the risk of screen wear.
A multi-stage screening equipment is designed to drive the Z-shaped rotary rod to drive the arc frame, slider and discharge pipe horizontally to achieve uniform distribution of calcium carbonate materials on the screen, and to prevent material blockage through the mixing rod. .
The uniform screening of calcium carbonate powder is achieved, the screening accuracy is improved, the screening wear is reduced, the screening life is extended, and the production efficiency is improved.
Smart Images
Figure CN222469752U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mineral processing, in particular to a multi-stage screening device. Background Art
[0002] Calcium carbonate is an inorganic compound, commonly known as gray stone, limestone, stone powder, marble, etc. It is neutral, basically insoluble in water, soluble in hydrochloric acid, and is an important building material with a wide range of industrial uses. During the production process, calcium carbonate powder needs to be screened through multi-stage screening equipment to achieve the required particle size distribution and quality requirements. These screening equipment usually include vibrating screens, airflow screens and other types, which can be selected according to production needs.
[0003] In the prior art, calcium carbonate powder falls on the screening net through the discharge port. The concentration of calcium carbonate powder in one place may indeed cause uneven feeding of the hopper. When calcium carbonate powder is concentrated in one area, the load on the corresponding position of the screen will increase significantly, while other areas may be idle. This uneven load distribution will not only reduce the screening efficiency because the idle area is not effectively utilized, but also the screen in the overloaded area is more susceptible to damage. Utility Model Content
[0004] The purpose of the utility model is to provide a multi-stage screening device to solve the problems raised in the above background technology.
[0005] In order to solve the above technical problems, the utility model provides a multi-stage screening equipment, including a box body and a feed hopper, a servo motor is fixedly installed on the box body, the driving end of the servo motor is connected to a Z-shaped rotating rod, a slider is slidably connected to the box body, a discharge pipe is fixedly installed on the slider, an arc frame is fixedly installed on the bottom of the slider, the other end of the Z-shaped rotating rod is arranged on the arc frame, and a stirring rod is fixedly installed on the inner wall of the discharge pipe.
[0006] Furthermore, a guide rod is fixedly mounted on the box body, and the sliding block is slidably connected to the outer wall of the guide rod.
[0007] Furthermore, a blocking block is fixedly mounted on one end of the Z-shaped rotating rod away from the servo motor.
[0008] Furthermore, a material guide rack is fixedly installed inside the box, a DC motor is provided on one side of the material guide rack, a rotating rod is provided on one side of the DC motor, a turntable is fixedly installed on the other end of the rotating rod, a screen rack is provided above the material guide rack, a connecting rod is provided between the turntable and the screen rack, and a plurality of return springs are provided between the screen rack and the material guide rack.
[0009] Furthermore, another screen frame is fixedly installed on the top of the screen frame, the discharge pipe is arranged on the other screen frame, and the plurality of return springs are distributed in an array.
[0010] Furthermore, two triangular guide blocks are fixedly mounted on the feed hopper, and the two guide blocks are symmetrically distributed.
[0011] Furthermore, the Z-shaped rotating rod and the arc-shaped frame are both made of metal.
[0012] Furthermore, an L-shaped plate is installed on the inner wall of the discharge pipe, a fixing bolt is threadedly connected to one side of the L-shaped plate, and the L-shaped plate is fixedly installed on the discharge pipe by the fixing bolt.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. In the utility model, the staff pours the calcium carbonate material into the feed hopper, controls the rotation of the Z-shaped rotating rod through the servo motor, drives the arc frame, the slider and the discharge pipe to move horizontally, and realizes the uniform distribution of the calcium carbonate material on the screen. This distribution makes the screen evenly stressed, improves the screening accuracy, reduces wear and extends the life of the screen.
[0015] 2. In the utility model, the fixing bolts can be rotated and removed according to production needs, so that the L-shaped plate can be replaced with another L-shaped plate with a larger or smaller area. The opening between the L-shaped plate and the discharge pipe can be adjusted according to production needs to control the falling speed of the calcium carbonate powder. By adjusting the size of the opening, the uniform falling of the material can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 It is a schematic diagram of the internal structure of the utility model;
[0018] Figure 3 It is a schematic diagram of the connection structure between the Z-shaped rotating rod and the arc frame in the utility model;
[0019] Figure 4 This is a schematic diagram of the connection structure between the discharge pipe and the L-shaped plate in the utility model;
[0020] Figure 5 for Figure 4 A magnified view of the structure at center.
[0021] In the figure: 1. box body; 2. servo motor; 3. Z-shaped rotating rod; 4. slider; 5. discharge pipe; 6. arc frame; 7. feed hopper; 8. DC motor; 9. turntable; 10. screen frame; 11. guide frame; 12. guide rod; 13. L-shaped plate; 14. fixing bolt; 15. stirring rod; 16. connecting rod; 17. reset spring. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] See also Figure 1-Figure 5 , the utility model provides a technical solution:
[0024] See also Figure 1-Figure 5 The figure shows a multi-stage screening device, comprising a box body 1 and a feed hopper 7. A servo motor 2 is fixedly mounted on the box body 1, a driving end of the servo motor 2 is connected to a Z-shaped rotating rod 3, a slider 4 is slidably connected to the box body 1, a discharge pipe 5 is fixedly mounted on the slider 4, an arc frame 6 is fixedly mounted on the bottom of the slider 4, the other end of the Z-shaped rotating rod 3 is arranged on the arc frame 6, and a stirring rod 15 is fixedly mounted on the inner wall of the discharge pipe 5.
[0025] It should be noted that both the servo motor 2 and the DC motor 8 are external power supplies.
[0026] The staff pours the calcium carbonate material into the feed hopper 7, and then uses the servo motor 2 to control the Z-shaped rotating rod 3 to rotate. When the Z-shaped rotating rod 3 rotates, it will drive the arc frame 6, the slider 4, and the discharge pipe 5 to move in the horizontal direction. The calcium carbonate material in the feed hopper 7 will be evenly distributed on the screen at the top of another screen frame 10 through the discharge pipe 5 that moves left and right, and then the calcium carbonate material will be screened in multiple stages. The evenly distributed material can make the force on each part of the screen more uniform, avoiding the problem of reduced screening accuracy due to uneven material distribution. At the same time, the even distribution can also reduce the wear of the screen and extend the service life of the screen.
[0027] The stirring rod 15 moves horizontally with the discharge pipe 5, and the lateral stirring of the stirring rod 15 can effectively prevent the calcium carbonate material from forming a blockage on the feed hopper 7, which helps to maintain the continuity of the screening process and reduce downtime and the workload of clearing the blockage.
[0028] See also Figure 1-4 A guide rod 12 is fixedly mounted on the box body 1 , and the slider 4 is slidably connected to the outer wall of the guide rod 12 .
[0029] The existence of the guide rod 12 provides stable support and guidance for the slider 4, making the screening device more stable during operation and making the slider 4 have less sliding resistance and slide more smoothly.
[0030] See also Figure 3 A blocking block is fixedly installed at one end of the Z-shaped rotating rod 3 away from the servo motor 2.
[0031] The diameter of the blocking block is larger than the cross section of the arc groove on the arc frame 6 , which can prevent the Z-shaped rotating rod 3 from escaping from the arc groove, thereby affecting the left and right pushing of the Z-shaped rotating rod 3 on the arc frame 6 .
[0032] See also Figure 1-3 A material guide frame 11 is fixedly installed inside the box body 1, a DC motor 8 is arranged on one side of the material guide frame 11, a rotating rod is arranged on one side of the DC motor 8, a turntable 9 is fixedly installed on the other end of the rotating rod, a screen frame 10 is arranged above the material guide frame 11, a connecting rod 16 is arranged between the turntable 9 and the screen frame 10, and a plurality of return springs 17 are arranged between the screen frame 10 and the material guide frame 11.
[0033] The DC motor 8 drives the rotating rod and the turntable 9 to rotate. The turntable 9 pulls the screen frame 10 to move back and forth under the control of the connecting rod 16, and then cooperates with the reset spring 17. The screen frame 10 is tilted again to speed up the multi-stage screening of calcium carbonate materials by the screen frame 10.
[0034] See also Figure 1-3 Another screen frame 10 is fixedly installed on the top of the screen frame 10, the discharge pipe 5 is arranged on the other screen frame 10, and a plurality of return springs 17 are distributed in an array.
[0035] By superimposing two screen frames 10, multi-stage screening can be achieved, so that the calcium carbonate powder can be effectively separated at different particle size levels, which helps to improve the screening efficiency and reduce the time consumption in the screening process.
[0036] See also Figure 1 Two triangular guide blocks are fixedly installed on the feed hopper 7, and the two guide blocks are symmetrically distributed.
[0037] The triangular guide block can effectively guide the material into the feed hopper 7, ensuring that the material can be evenly distributed during the screening process, reducing the accumulation and blockage of the material on the feed hopper 7, which helps to improve the screening efficiency.
[0038] See also Figure 3 The Z-shaped rotating rod 3 and the arc frame 6 are both made of metal.
[0039] Metal materials generally have good wear resistance and can resist the wear of the surface by materials during operation, which helps to extend the service life of the Z-shaped rotating rod 3 and the arc frame 6 and reduce the maintenance cost of parts.
[0040] See also Figure 4-5 An L-shaped plate 13 is installed on the inner wall of the discharge pipe 5 , and a fixing bolt 14 is threadedly connected to one side of the L-shaped plate 13 . The L-shaped plate 13 is fixedly installed on the discharge pipe 5 by the fixing bolt 14 .
[0041] According to production requirements, the fixing bolt 14 can be rotated and removed, so that the L-shaped plate 13 can be replaced with another L-shaped plate 13 with a larger or smaller area. The opening between the L-shaped plate 13 and the discharge pipe 5 can be adjusted according to production needs to control the falling speed of the calcium carbonate powder. By adjusting the size of the opening, the uniform falling of the material can be achieved.
[0042] Working principle: the staff pours the calcium carbonate material into the feed hopper 7, and then uses the servo motor 2 to control the Z-shaped rotating rod 3 to rotate. When the Z-shaped rotating rod 3 rotates, it will drive the arc frame 6, the slider 4, and the discharge pipe 5 to move in the horizontal direction. The calcium carbonate material in the feed hopper 7 will be evenly distributed on the screen on the top of another screen frame 10 through the discharge pipe 5 that moves left and right, and then the calcium carbonate material will be screened in multiple stages. The evenly distributed material can make the force on each part of the screen more uniform, avoiding the problem of reduced screening accuracy due to uneven material distribution. At the same time, the even distribution can also reduce the wear of the screen and extend the service life of the screen.
[0043] The stirring rod 15 moves horizontally with the discharge pipe 5, and the lateral stirring of the stirring rod 15 can effectively prevent the calcium carbonate material from forming a blockage on the feed hopper 7, which helps to maintain the continuity of the screening process and reduce downtime and the workload of clearing the blockage.
[0044] According to production requirements, the fixing bolt 14 can be rotated and removed, so that the L-shaped plate 13 can be replaced with another L-shaped plate 13 with a larger or smaller area. The opening between the L-shaped plate 13 and the discharge pipe 5 can be adjusted according to production needs to control the falling speed of the calcium carbonate powder. By adjusting the size of the opening, the uniform falling of the material can be achieved.
Claims
1. A multi-stage screening device, comprising a housing (1) and a feed hopper (7), characterized in that: A servo motor (2) is fixedly mounted on the box body (1), a driving end of the servo motor (2) is connected to a Z-shaped rotating rod (3), a slider (4) is slidably connected to the box body (1), a discharge pipe (5) is fixedly mounted on the slider (4), an arc frame (6) is fixedly mounted on the bottom of the slider (4), the other end of the Z-shaped rotating rod (3) is arranged on the arc frame (6), and a stirring rod (15) is fixedly mounted on the inner wall of the discharge pipe (5).
2. A multi-stage screening device as claimed in claim 1, characterized in that: A guide rod (12) is fixedly mounted on the box body (1), and the slider (4) is slidably connected to the outer wall of the guide rod (12).
3. A multi-stage screening device as claimed in claim 2, characterized in that: A blocking block is fixedly mounted on one end of the Z-shaped rotating rod (3) away from the servo motor (2).
4. A multi-stage screening device as claimed in claim 3, characterized in that: A material guide frame (11) is fixedly installed inside the box body (1), a DC motor (8) is arranged on one side of the material guide frame (11), a rotating rod is arranged on one side of the DC motor (8), a rotating disk (9) is fixedly installed on the other end of the rotating rod, a screen frame (10) is arranged above the material guide frame (11), a connecting rod (16) is arranged between the rotating disk (9) and the screen frame (10), and a plurality of return springs (17) are arranged between the screen frame (10) and the material guide frame (11).
5. A multi-stage screening device as claimed in claim 4, characterized in that: Another screen frame (10) is fixedly mounted on the top of the screen frame (10), the discharge pipe (5) is arranged on the other screen frame (10), and a plurality of return springs (17) are distributed in an array.
6. A multi-stage screening device as claimed in claim 5, characterized in that: Two triangular guide blocks are fixedly mounted on the feed hopper (7), and the two guide blocks are symmetrically distributed.
7. A multi-stage screening device as claimed in claim 6, characterized in that: The Z-shaped rotating rod (3) and the arc-shaped frame (6) are both made of metal.
8. A multi-stage screening device as claimed in claim 7, characterized in that: An L-shaped plate (13) is installed on the inner wall of the discharge pipe (5), and a fixing bolt (14) is threadedly connected to one side of the L-shaped plate (13). The L-shaped plate (13) is fixedly installed on the discharge pipe (5) by means of the fixing bolt (14).