Multilayer vibrating screen device for limestone screening
The design of the multi-layer vibrating screen device solves the problems of low limestone screening efficiency and dust pollution, achieving efficient screening and environmentally friendly sieving.
Patent Information
- Application Number
- CN202520452931.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-15
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-15
AI Technical Summary
Existing limestone screening devices require multiple screenings of limestone of different sizes, and the screening process generates a large amount of dust that pollutes the environment.
Design a multi-layer vibrating screen device, which adopts three evenly distributed screens and a vibration mechanism. The drive wheel group drives the rotating wheel to vibrate the screen synchronously. Combined with the dust suppression component, dust is removed, so as to realize multi-layer screening and dust control.
This technology enables the simultaneous screening of limestone of different specifications, improving screening efficiency, reducing dust pollution, and protecting the environment.
Smart Images
Figure CN223931953U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of limestone production technology, specifically a multi-layer vibrating screen device for limestone screening. Background Technology
[0002] Limestone is a common rock whose main chemical component is calcium carbonate. It is widely distributed in nature and is easy to mine and process. Since the main component of limestone is calcium carbonate, quicklime can be obtained by calcination, so it is used as the main raw material for producing quicklime. In the process of limestone processing, screening devices are needed to screen it for subsequent processing.
[0003] Existing limestone screening devices have many problems in use. Specifically, traditional screening devices often require multiple screenings when screening limestone of different sizes, which is cumbersome and inefficient, and increases energy consumption and labor costs. At the same time, a large amount of dust is easily generated during the feeding and screening of limestone. This dust often drifts into the air, causing environmental pollution and potentially threatening the health of operators.
[0004] Therefore, a multi-layer vibrating screen device for limestone screening is needed to solve the problem that existing screening devices require multiple screenings when screening limestone of different specifications, and generate a lot of dust pollution during limestone screening. Utility Model Content
[0005] The purpose of this invention is to provide a multi-layer vibrating screen device for limestone screening, so as to solve the problem that the existing screening devices require multiple screenings when screening limestone of different specifications, and generate a lot of dust pollution during limestone screening.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer vibrating screen device for limestone screening, comprising a screen box, three evenly distributed screens inside the screen box, a vibrating mechanism inside the screen box, a feed hopper at the center of the top of the screen box, a dust suppression component at the bottom of the feed hopper, three through holes corresponding to the three screens on the left outer wall of the screen box, a discharge port corresponding to the three through holes fixedly connected to the left outer wall of the screen box, and a powder discharge pipe fixedly connected to the center of the bottom surface of the screen box;
[0007] The vibration mechanism includes three evenly distributed fixed plates and three evenly distributed rotating wheels. The three fixed plates are all fixedly connected to the inner wall of the right side of the sieve box and correspond one-to-one with the three sieves. Four evenly distributed sliding rods are fixedly connected to the top surface of the fixed plates. The top ends of the four sliding rods on the top surface of the same fixed plate slide through the top surface of the corresponding sieve and are coaxially fixedly connected to limit blocks. Springs are sleeved on the outer surface of the sliding rods. The three rotating wheels are respectively located at the center of the right side of the top surface of the three sieves. Four circumferentially distributed protrusions are fixedly connected to the outer surface of the rotating wheels.
[0008] It should be noted in the solution that the dust suppression component includes a dust collection shell, which is fixedly connected to the bottom surface of the feed hopper and the top surface of the screen box. A protective net is fixedly connected inside the dust collection shell, and a dust collection pipe is fixedly connected to the center of the outer wall at the front end of the dust collection shell. A connecting flange is installed on the outer wall at the front end of the dust collection pipe.
[0009] It is worth noting that each of the through holes has a sliding groove on both end walls, and a slider is slidably connected inside the sliding groove.
[0010] Furthermore, it should be noted that each of the aforementioned rotating wheels has a rotating shaft coaxially fixedly connected to its right outer wall. The rotating shaft rotates through the right outer wall of the screen box, and a transmission wheel set is provided between two adjacent rotating shafts. A motor with its output end coaxially fixedly connected to the right outer wall of one of the rotating shafts is mounted on the right outer wall of the screen box via a mounting bracket.
[0011] In a preferred embodiment, the aperture of the screens on the three screens gradually decreases from top to bottom, and the bottom and top ends of each spring are respectively fixedly connected to the top surface of the corresponding fixing plate and the bottom surface of the corresponding screen.
[0012] In a preferred embodiment, the lengths of the three discharge ports gradually decrease from top to bottom, and the two sliders located in the same through hole are fixedly connected to the outer walls of the two ends of the corresponding screen.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. Through the cooperation of the transmission wheel set, the three rotating shafts drive the three rotating wheels to rotate simultaneously. The rotating wheels drive the protrusions to squeeze the screen in a regular manner, so that the three screens vibrate at the same time, and the limestone is screened in multiple layers. This achieves the requirement of screening limestone of different specifications at the same time, improves screening efficiency, and effectively avoids the problem of multiple screenings when screening limestone of different specifications.
[0015] 2. The protective netting prevents limestone from entering the dust collection chamber and causing blockages. By connecting the dust collection pipe to an external dust collection device, the dust is absorbed, reducing the amount of limestone dust that drifts into the air through the feed hopper. This helps to suppress dust, reduce air pollution, and effectively avoid the problem of excessive dust pollution during limestone screening. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a front view cross-sectional structural diagram of the sieve box of this utility model;
[0018] Figure 3 This is a schematic diagram of the vibration mechanism structure of this utility model;
[0019] Figure 4 This is a side view cross-sectional structural diagram of the dust collection shell of this utility model.
[0020] The following are the labels in the diagram: 1. Screen box; 2. Screen mesh; 3. Vibration mechanism; 31. Fixed plate; 32. Slide rod; 33. Limiting block; 34. Spring; 35. Rotary wheel; 36. Protrusion; 4. Feed hopper; 5. Dust suppression component; 51. Dust suction shell; 52. Protective net; 53. Dust suction pipe; 54. Connecting flange; 6. Through hole; 7. Discharge port; 8. Powder discharge pipe; 9. Slide chute; 10. Sliding block; 11. Rotating shaft; 12. Transmission wheel set; 13. Motor. Detailed Implementation
[0021] 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.
[0022] Example: Figures 1-4 As shown, this utility model provides a technical solution, including a sieve box 1, with three screens 2 evenly distributed inside the sieve box 1, a vibration mechanism 3 inside the sieve box 1, a feed hopper 4 at the top center of the sieve box 1, a dust suppression component 5 at the bottom surface of the feed hopper 4, three through holes 6 corresponding to the three screens 2 on the left outer wall of the sieve box 1, a discharge port 7 corresponding to the three through holes 6 fixedly connected to the left outer wall of the sieve box 1, and a powder discharge pipe 8 fixedly connected to the bottom center of the sieve box 1.
[0023] The vibration mechanism 3 includes three evenly distributed fixed plates 31 and three evenly distributed rotating wheels 35. The three fixed plates 31 are all fixedly connected to the inner wall of the right side of the screen box 1 and correspond one-to-one with the three screens 2. The top surface of the fixed plate 31 is fixedly connected to four evenly distributed sliding rods 32. The top ends of the four sliding rods 32 on the top surface of the same fixed plate 31 slide through the top surface of the corresponding screen 2 and are coaxially fixedly connected to the limit block 33. The outer surface of the sliding rod 32 is fitted with a spring 34. The three rotating wheels 35 are respectively set at the center of the right side of the top surface of the three screens 2. The outer surface of the rotating wheel 35 is fixedly connected to four circumferentially distributed protrusions 36.
[0024] Further as Figure 1 and Figure 4 As shown, it is worth noting that the dust suppression component 5 includes a dust collection shell 51, which is fixedly connected to the bottom surface of the feed hopper 4 and the top surface of the screen box 1. A protective net 52 is fixedly connected inside the dust collection shell 51, and a dust collection pipe 53 is fixedly connected to the center of the outer wall at the front end of the dust collection shell 51. A connecting flange 54 is installed on the outer wall at the front end of the dust collection pipe 53.
[0025] Further as Figure 2 As shown, it is worth noting that each through hole 6 has a groove 9 on both end walls inside, and a slider 10 is slidably connected inside the groove 9.
[0026] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that each rotating wheel 35 has a rotating shaft 11 coaxially fixedly connected to the outer wall of its right side. The rotating shaft 11 rotates through the outer wall of the screen box 1 and a transmission wheel set 12 is provided between two adjacent rotating shafts 11. A motor 13 with its output end coaxially fixedly connected to the outer wall of the right side of one of the rotating shafts 11 is installed on the outer wall of the right side of the screen box 1 through a mounting bracket.
[0027] Further as Figure 2 and Figure 3 As shown, it is worth noting that the sieve apertures on the three sieves 2 gradually decrease from top to bottom, achieving a multi-layer sieving effect on the limestone. The bottom and top ends of each spring 34 are fixedly connected to the top surface of the corresponding fixing plate 31 and the bottom surface of the corresponding sieve 2, respectively, and the vibration of the sieve 2 is achieved through the elastic action of the spring 34.
[0028] Further as Figure 1 and Figure 2 As shown, it is worth noting that the lengths of the three discharge ports 7 gradually decrease from top to bottom, which facilitates the collection of limestone of different specifications after screening. The two sliders 10 located in the same through hole 6 are fixedly connected to the outer walls of the two ends of the corresponding screen 2, which restricts the vibration direction of the screen 2 and improves the stability of the screen 2 during vibration.
[0029] In summary: When using this device, firstly, the suction pipe 53 is connected to the external suction equipment via the connecting flange 54. Then, the motor 13 is turned on and limestone is fed into the feed hopper 4. The motor 13 drives one of the rotating shafts 11 to rotate. Under the action of the transmission wheel set 12, the three rotating shafts 11 drive the three rotating wheels 35 to rotate simultaneously. When the rotating wheels 35 rotate, they regularly squeeze the screen 2 through the protrusions 36. With the cooperation of the sliding rod 32 and the spring 34, and the sliding cooperation of the sliding groove 9 and the slider 10, the three screens 2 vibrate up and down regularly, performing multi-layer screening of the limestone. Under the action of vibration, limestone of different specifications is discharged through the corresponding through holes 6 and discharge ports 7, while the lime powder produced by screening is discharged through the powder discharge pipe 8. The screening effect is good, realizing the need to screen different specifications of limestone at the same time, improving screening efficiency, and effectively avoiding the problem of multiple screenings required when screening different specifications of limestone.
[0030] A large amount of dust is generated during the process of feeding and screening limestone. At this time, the suction force generated by the external dust collection equipment absorbs the dust through the dust collection pipe 53, which can reduce the amount of limestone dust that drifts into the air through the feed hopper 4, thus playing a role in dust suppression and reducing air pollution. The protective net 52 can prevent limestone from entering the dust collection shell 51 and causing blockage. It is easy to use and effectively avoids the problem of generating a lot of dust and polluting the environment during limestone screening.
[0031] The motor 13 can be purchased from the market and is a mature technology in this field, which has been fully disclosed. Therefore, it will not be described again in the specification.
[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A multi-layer vibrating screen device for limestone screening, comprising a screen box (1), characterized in that: The sieve box (1) is equipped with three evenly distributed sieves (2), and a vibration mechanism (3) is provided inside the sieve box (1). A feeding hopper (4) is provided at the center of the top of the sieve box (1), and a dust suppression component (5) is provided on the bottom surface of the feeding hopper (4). Three through holes (6) corresponding to the three sieves (2) are opened on the left outer wall of the sieve box (1). A discharge port (7) corresponding to the three through holes (6) is fixedly connected to the left outer wall of the sieve box (1). A powder discharge pipe (8) is fixedly connected to the center of the bottom surface of the sieve box (1). The vibration mechanism (3) includes three evenly distributed fixed plates (31) and three evenly distributed rotating wheels (35). The three fixed plates (31) are all fixedly connected to the inner wall of the right side of the sieve box (1) and correspond one-to-one with the three sieves (2). The top surface of the fixed plate (31) is fixedly connected to four evenly distributed sliding rods (32). The top ends of the four sliding rods (32) on the top surface of the same fixed plate (31) slide through the top surface of the corresponding sieve (2) and are coaxially fixedly connected to a limit block (33). The outer surface of the sliding rod (32) is fitted with a spring (34). The three rotating wheels (35) are respectively located at the center of the right side of the top surface of the three sieves (2). The outer surface of the rotating wheel (35) is fixedly connected to four circumferentially distributed protrusions (36).
2. The multi-layer vibrating screen device for limestone screening according to claim 1, characterized in that: The dust suppression component (5) includes a dust collection shell (51), which is fixedly connected to the bottom surface of the feed hopper (4) and the top surface of the screen box (1). A protective net (52) is fixedly connected inside the dust collection shell (51), and a dust collection pipe (53) is fixedly connected at the center of the outer wall of the front end of the dust collection shell (51). A connecting flange (54) is installed on the outer wall of the front end of the dust collection pipe (53).
3. The multi-layer vibrating screen device for limestone screening according to claim 2, characterized in that: Each of the through holes (6) has a sliding groove (9) on both end walls, and a slider (10) is slidably connected inside the sliding groove (9).
4. The multi-layer vibrating screen device for limestone screening according to claim 3, characterized in that: Each of the rotating wheels (35) has a rotating shaft (11) fixedly connected to the outer wall of the right side. The outer wall of the right side of the rotating shaft (11) rotates through the outer wall of the right side of the screen box (1), and a transmission wheel set (12) is provided between two adjacent rotating shafts (11). The outer wall of the right side of the screen box (1) is equipped with a motor (13) whose output end is fixedly connected to the outer wall of the right side of one of the rotating shafts (11) through a mounting bracket.
5. The multi-layer vibrating screen device for limestone screening according to claim 4, characterized in that: The aperture of the three screens (2) gradually decreases from top to bottom, and the bottom and top ends of each spring (34) are respectively fixedly connected to the top surface of the corresponding fixing plate (31) and the bottom surface of the corresponding screen (2).
6. The multi-layer vibrating screen device for limestone screening according to claim 3, characterized in that: The lengths of the three discharge ports (7) gradually decrease from top to bottom, and the two sliders (10) located in the same through hole (6) are fixedly connected to the outer walls of the two ends of the corresponding screen (2).