A vibrating screen

Abstract

The application relates to a vibrating screen and relates to the technical field of vibrating screens. The vibrating screen comprises a working frame, a feeding box, a working box and a discharging box, the working box is arranged on the working frame, the working box is arranged in a downward inclination mode, the feeding box is arranged at the top end of the working box and is communicated with the working box, the discharging box is arranged at the bottom end of the working box and is communicated with the working box, the bottom wall of the working box is communicated with a discharging port, the first layer of sieve plates, the second layer of sieve plates and the third layer of sieve plates are sequentially arranged in the working box from top to bottom, the first layer of sieve plates, the second layer of sieve plates and the third layer of sieve plates are arranged along the length direction of the working box, the third layer of sieve plates is fixed with a partition plate, the partition plate is fixed with the inner wall of the discharging box, and the partition plate is used for separating the discharging box and the discharging port. The application has the effect that different particle sizes of materials can be screened at one time, and the screening efficiency is relatively high.

Description

Technical Field

[0001] This application relates to the field of vibrating screens, and more particularly to a vibrating screen. Background Technology

[0002] Vibrating screens, as important screening equipment, are widely used in industrial production. With the continuous development of industry, the requirements for material screening accuracy and efficiency are becoming increasingly stringent, and vibrating screen technology is constantly improving. It plays a crucial role in many fields such as mining, chemical, food, and pharmaceutical industries, effectively separating materials of different particle sizes to provide suitable raw materials for subsequent processing, greatly improving production quality and efficiency.

[0003] In order to screen materials of different particle sizes, it is usually necessary to change the sieve plates with different pore densities and pour the materials onto different sieve plates in sequence to screen the materials of different particle sizes. This results in low screening efficiency, which needs to be improved. Utility Model Content

[0004] To address the issue of low screening efficiency caused by sequentially pouring materials onto different screen plates to separate materials of different particle sizes, this application provides a vibrating screen.

[0005] The vibrating screen provided in this application adopts the following technical solution: A vibrating screen includes a working frame, a feed box, a working box, and a discharge box. The working box is mounted on the working frame and is inclined downwards. The feed box is located at the top of the working box and communicates with it. The discharge box is located at the bottom of the working box and communicates with it. A discharge port is connected to the bottom wall of the working box. A first layer of screen plates, a second layer of screen plates, and a third layer of screen plates are arranged sequentially from top to bottom in the working box. The first layer of screen plates, the second layer of screen plates, and the third layer of screen plates are all arranged along the length of the working box. A partition plate is fixed on the third layer of screen plates. The partition plate is fixed to the inner wall of the discharge box and is used to separate the discharge box and the discharge port.

[0006] By adopting the above technical solution, solid particulate materials are fed into the feed box, and then the materials enter the working box through the feed box. The materials first fall onto the first screen plate, and the smaller particles fall onto the second screen plate through the first screen plate, and so on, until the materials pass through the third screen plate and fall onto the bottom wall of the working box, and then reach the discharge port through the bottom wall of the working box for discharge.

[0007] Larger particles remaining on the upper surfaces of the first, second, and third sieve plates slide down the sieve surface onto the separator plate and are eventually discharged from the discharge box. This allows the material to be stratified according to particle size during the screening process. Furthermore, the separator plate effectively prevents the undersize material discharged from the discharge port from interfering with the material in the discharge box. This allows for the simultaneous collection of larger and smaller particles, namely, materials discharged from the discharge box and materials discharged from the discharge port, thus improving the screening effect and efficiency.

[0008] Optionally, the surfaces of the first and third sieve plates are connected to the discharge box, and a discharge port is provided through the partition plate. The second sieve plate is connected to the discharge port through the discharge hopper.

[0009] By adopting the above technical solution, the discharge hopper allows the material on the second screen plate to enter the discharge hopper and pass through the discharge port to be discharged from the discharge port. This allows the material on the first and third screen plates to be discharged from the discharge box, while the material on the second screen plate and the undersize material on the third screen plate are discharged from the discharge port, thereby achieving further division of the screened material and improving the fineness of the screening.

[0010] Optionally, the inner diameter of the discharge hopper gradually decreases from top to bottom.

[0011] By adopting the above technical solution, reducing the inner diameter of the discharge hopper can accelerate the flow rate of materials, allowing them to enter the discharge port more smoothly.

[0012] Optionally, a rotating rod is rotatably connected to the working box, and a sealing plate is fixed on the rotating rod. The sealing plate can abut against the bottom wall of the partition plate to block the discharge port.

[0013] By adopting the above technical solution, when the sealing plate abuts against the bottom wall of the partition plate, the discharge port is in a closed state. At this time, the discharge port is only connected to the bottom of the third sieve plate, resulting in the smallest particle size of the material discharged from the discharge port. When the rotating rod is driven to rotate, the sealing plate separates from the bottom wall of the partition plate, opening the discharge port. At this time, the material on the second sieve plate enters the discharge hopper and flows out from the bottom of the discharge hopper, entering the bottom of the working box through the discharge port, and finally being discharged from the discharge port. This controls the output of materials of different particle sizes at the discharge port.

[0014] Optionally, a baffle is rotatably connected to the first layer of screen plate. The end of the baffle is rotatably connected to the working box via a rotating shaft. The side of the baffle away from the first layer of screen plate can abut against the inner wall of the working box to separate the first layer of screen plate and the discharge box.

[0015] By adopting the above technical solution, when the baffle rotates to abut against the inner wall of the working box, the space on the first layer of screen plate is only connected to the feed box, thus ensuring that the material on the first layer of screen plate remains on the first layer of screen plate. At this time, only the top of the third layer of screen plate is connected to the discharge box, so that the material discharged from the discharge box is all from the third layer of screen plate. When the baffle rotates, it separates from the inner wall of the working box. At this time, the material on the first layer of screen plate can enter the discharge box through the gap between the baffle and the inner wall of the working box and be discharged from the discharge box, thereby controlling the discharge of materials of different particle sizes from the discharge box.

[0016] Optionally, a rubber pad is fixed on the side of the baffle away from the first sieve plate, and the rubber pad can abut against the inner wall of the working box.

[0017] By adopting the above technical solution, the rubber gasket enhances the sealing between the baffle and the inner wall of the working chamber, preventing material leakage from gaps. It also prevents damage from impacts between the baffle and the inner wall of the working chamber, extending the service life of the sealing plate.

[0018] Optionally, the rotating shaft and the rotating rod are connected by a conveyor belt, which is located on the outer wall of the work box. The driving wheel of the conveyor belt is coaxially fixed with the rotating rod, and the driven wheel of the conveyor belt is coaxially fixed with the rotating shaft.

[0019] By adopting the above technical solution, the conveyor belt enables the rotating rod and the rotating shaft to rotate synchronously. When the sealing plate seals the discharge port, the baffle also abuts against the inner wall of the working box. At this time, the material discharged from the discharge port is the undersize material of the third screen plate, while the material discharged from the discharge box is the material on the third screen plate, thus obtaining material with smaller particle size.

[0020] When the rotating rod rotates, it drives the driving wheel to rotate, which in turn moves the conveyor belt and drives the driven wheel to rotate synchronously, thus realizing the rotation of the shaft. When the sealing plate rotates to open the discharge port, the sealing plate also separates from the inner wall of the working box, allowing the material on the second screen plate and the material on the first screen plate to be discharged from the discharge port and discharge box respectively. This yields materials with larger particle sizes. There is no need to replace the screen plate, and materials of different particle sizes can be screened according to requirements, making the operation convenient.

[0021] Optionally, the feed box is provided with a plurality of guide plates, the plurality of guide plates are on the same plane, and the plurality of guide plates are arranged at intervals along the width direction of the working box.

[0022] By adopting the above technical solution, when the material is poured into the feed box, it will fall onto the guide plate. The guide plate restricts the material from falling, so that the material can only slide down through the gap between adjacent guide plates, thereby evenly dispersing the material entering the feed box into the working box and improving the uniformity of screening.

[0023] In summary, this application includes at least one of the following beneficial effects: 1. Larger particles remaining on the upper surfaces of the first, second, and third sieve plates slide down the sieve surface onto the partition plate and are eventually discharged from the discharge box. This allows the material to be stratified according to particle size during the screening process. The partition plate effectively prevents the undersize material discharged from the discharge port from interfering with the material in the discharge box. This allows for the simultaneous collection of larger and smaller particles, namely, materials discharged from the discharge box and materials discharged from the discharge port, thus improving the screening effect and efficiency. 2. When the sealing plate blocks the discharge port, the baffle also abuts against the inner wall of the working box. At this time, the material discharged from the discharge port is the undersize material of the third sieve plate, while the material discharged from the discharge box is the material on the third sieve plate, thus obtaining material with smaller particle size. When the rotating rod rotates, it drives the drive wheel to rotate, thereby causing the conveyor belt to move and drive the driven wheel to rotate synchronously, realizing the rotation of the shaft. That is, when the sealing plate rotates to open the discharge port, the sealing plate also separates from the inner wall of the working box, so that the material on the second sieve plate and the material on the first sieve plate can be discharged from the discharge port and the discharge box respectively, thus obtaining material with larger particle size. There is no need to replace the sieve plate, and materials of different particle sizes can be screened according to the requirements, making the operation convenient. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the vibrating screen according to an embodiment of this application; Figure 2 This is a schematic diagram of the internal structure of the work box; Figure 3 This is a structural diagram showing the connection between the working box and the discharge box; Figure 4 This is a structural diagram of the sealing plate and baffle.

[0025] In the diagram: 10. Working frame; 20. Feed box; 30. Working box; 31. First sieve plate; 32. Second sieve plate; 33. Third sieve plate; 34. Divider plate; 341. Discharge port; 35. Discharge hopper; 36. Discharge outlet; 40. Discharge box; 50. Baffle plate; 60. Sealing plate; 61. Rubber pad; 70. Conveyor belt; 80. Guide plate. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0027] This application discloses a vibrating screen. (Refer to...) Figure 1 and Figure 2The vibrating screen includes a working frame 10, a feed box 20, a working box 30, and a discharge box 40. The working box 30 is mounted on the working frame 10 and is inclined downwards. The feed box 20 is located at the top of the working box 30 and is connected to the working box 30. The discharge box 40 is located at the bottom of the working box 30 and is connected to the working box 30. A discharge port 36 is connected to the bottom wall of the working box 30 and is also located at the lowest point of the working box 30.

[0028] Reference Figure 1 and Figure 2 The working box 30 is provided with a first layer of screen plate 31, a second layer of screen plate 32 and a third layer of screen plate 33 arranged from top to bottom. The first layer of screen plate 31, the second layer of screen plate 32 and the third layer of screen plate 33 are all arranged along the length of the working box 30. A partition plate 34 is fixed inside the working box 30. The circumferential side wall of the partition plate 34 is fixed to the inner wall of the working box 30. The partition plate 34 is an extension of the third layer of screen plate 33. The partition plate 34 is used to separate the discharge box 40 and the discharge port 36.

[0029] Solid granular material is fed into the feed box 20, and then the material enters the working box 30 through the feed box 20. The material first falls on the first screen plate 31, and the smaller particles fall on the second screen plate 32 through the first screen plate 31, and so on, until the material passes through the third screen plate 33 and falls on the bottom wall of the working box 30. Then it reaches the discharge port 36 through the bottom wall of the working box 30 and is discharged.

[0030] Reference Figure 1 and Figure 2 Larger particles remaining on the upper surfaces of the first sieve plate 31, the second sieve plate 32, and the third sieve plate 33 slide down the sieve surface onto the partition plate 34 and are eventually discharged from the discharge box 40. This allows the material to be stratified according to particle size during the screening process. Furthermore, the partition plate 34 effectively prevents the undersize material discharged from the discharge port 36 from interfering with the material in the discharge box 40. This allows for the simultaneous collection of larger and smaller particles, namely, the material discharged from the discharge box 40 and the material discharged from the discharge port 36, thereby improving the screening effect and efficiency.

[0031] Reference Figure 1 and Figure 2 The feed hopper 20 is the inlet for materials to enter the working chamber 30. The feed hopper 20 is equipped with several guide plates 80, which are arranged on the same plane and spaced apart along the width of the working chamber 30. When material is poured into the feed hopper 20, it falls onto the guide plates 80. The guide plates 80 restrict the material's fall, allowing it to slide down only through the gaps between adjacent guide plates 80. This evenly distributes the material entering the feed hopper 20 into the working chamber 30, improving the uniformity of screening.

[0032] The working box 30 is the main place for material screening. Its downward tilting design facilitates the natural sliding of materials under gravity, thereby improving screening efficiency.

[0033] Reference Figure 1 and Figure 2 The first sieve plate 31, the second sieve plate 32, and the third sieve plate 33 are key components for material screening. They can be made of wire mesh, which has good screening effect and wear resistance. These three sieve plates are arranged along the length of the working box 30, so that the material can pass through different sieve plates in sequence during the screening process, achieving the separation of materials of different particle sizes.

[0034] Reference Figure 2 and Figure 3 The surfaces of the first screen plate 31 and the third screen plate 33 are connected to the discharge box 40. The partition plate 34 has a discharge port 341 through it. The second screen plate 32 is connected to the discharge port 341 through the discharge hopper 35. The discharge hopper 35 guides the material on the second screen plate 32 into the discharge port 341. Its inner diameter gradually decreases from top to bottom. This design can speed up the flow rate of the material and make the material enter the discharge port 341 more smoothly.

[0035] Reference Figure 2 and Figure 3 The discharge hopper 35 allows the material on the first screen plate 31 and the third screen plate 33 to be discharged from the discharge box 40, while the material on the second screen plate 32 and the undersize material on the third screen plate 33 are discharged from the discharge port 36, thereby achieving further division of the screened material and improving the fineness of the screening.

[0036] Reference Figure 3 and Figure 4 A rotating rod is rotatably connected to the working box 30, and a sealing plate 60 is fixed on the rotating rod. The sealing plate 60 can abut against the bottom wall of the partition plate 34 to block the discharge port 341.

[0037] Reference Figure 3 and Figure 4 A baffle 50 is rotatably connected to the first-layer screen plate 31. The end of the baffle 50 is rotatably connected to the working box 30 via a rotating shaft. The side of the baffle 50 away from the first-layer screen plate 31 can abut against the inner wall of the working box 30, thus separating the first-layer screen plate 31 and the discharge box 40. A rubber gasket 61 is fixed on the baffle 50. The rubber gasket 61 can abut against the inner wall of the working box 30. The function of the rubber gasket 61 is to enhance the sealing between the baffle 50 and the inner wall of the working box 30, preventing material from leaking from the gaps.

[0038] Reference Figure 1 and Figure 4The rotating shaft and the rotating rod are connected by a conveyor belt 70, which is rotatably connected to the outer wall of the work box 30. The ends of the rotating rod and the rotating shaft pass through the side wall of the work box 30. The driving wheel of the conveyor belt 70 is fixed coaxially with the rotating rod, and the driven wheel of the conveyor belt 70 is fixed coaxially with the rotating shaft. A motor is installed on the side wall of the work box 30 by bolts. The output end of the motor is fixed to the rotating rod and is used to drive the rotating rod to rotate.

[0039] The conveyor belt 70 enables the rotating rod and the rotating shaft to rotate synchronously. When the sealing plate 60 seals the discharge port 341, the baffle 50 also abuts against the inner wall of the working box 30. At this time, the material discharged from the discharge port 36 is the undersize material of the third sieve plate 33, while the material discharged from the discharge box 40 is the material on the third sieve plate 33, thus obtaining material with smaller particle size.

[0040] When the rotating rod rotates, it drives the driving wheel to rotate, thereby moving the conveyor belt 70 and driving the driven wheel to rotate synchronously, realizing the rotation of the shaft. When the sealing plate 60 rotates to open the discharge port 341, the sealing plate 60 also separates from the inner wall of the working box 30, so that the material on the second screen plate 32 and the material on the first screen plate 31 can be discharged from the discharge port 36 and the discharge box 40 respectively. This yields materials with larger particle sizes. Without replacing the screen plates, materials of different particle sizes can be screened according to requirements, making the operation convenient.

[0041] The implementation principle of a vibrating screen according to an embodiment of this application is as follows: Material enters the working box 30 from the feed box 20 and, under the action of gravity and vibration, passes through the first screen plate 31, the second screen plate 32, and the third screen plate 33 in sequence for screening. Materials of different particle sizes are discharged from the discharge port 36 and the discharge box 40 respectively. The partition plate 34 effectively separates the discharge box 40 and the discharge port 36, avoiding mutual interference between materials. The opening and closing of the discharge port 341 can be controlled by rotating the rod and the sealing plate 60, and the first screen plate 31 and the discharge box 40 can be separated by the baffle 50. In this way, materials of different particle sizes can be obtained from the discharge port 36 and the discharge box 40 as needed, without the need to replace the screen plates, making operation convenient.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A vibrating screen, characterized in that, The system includes a work frame (10), a feed box (20), a work box (30), and a discharge box (40). The work box (30) is mounted on the work frame (10) and is tilted downwards. The feed box (20) is located at the top of the work box (30) and is connected to it. The discharge box (40) is located at the bottom of the work box (30) and is connected to it. A discharge port (36) is connected to the bottom wall of the work box (30). The working box (30) is provided with a first layer of screen plate (31), a second layer of screen plate (32) and a third layer of screen plate (33) arranged from top to bottom. The first layer of screen plate (31), the second layer of screen plate (32) and the third layer of screen plate (33) are all arranged along the length of the working box (30). A partition plate (34) is fixed on the third layer of screen plate (33). The partition plate (34) is fixed to the inner wall of the discharge box (40). The partition plate (34) is used to separate the discharge box (40) and the discharge port (36).

2. The vibrating screen according to claim 1, characterized in that, The surfaces of the first layer screen plate (31) and the third layer screen plate (33) are connected to the discharge box (40), and the partition plate (34) is provided with a discharge port (341). The second layer screen plate (32) is connected to the discharge port (341) through the discharge hopper (35).

3. The vibrating screen according to claim 2, characterized in that, The inner diameter of the discharge hopper (35) gradually decreases from top to bottom.

4. The vibrating screen according to claim 2, characterized in that, A rotating rod is rotatably connected to the working box (30), and a sealing plate (60) is fixed on the rotating rod. The sealing plate (60) can abut against the bottom wall of the partition plate (34) to block the discharge port (341).

5. The vibrating screen according to claim 4, characterized in that, A baffle (50) is rotatably connected to the first layer screen plate (31). The end of the baffle (50) is rotatably connected to the working box (30) via a rotating shaft. The side of the baffle (50) away from the first layer screen plate (31) can abut against the inner wall of the working box (30) to separate the first layer screen plate (31) and the discharge box (40).

6. The vibrating screen according to claim 5, characterized in that, A rubber pad (61) is fixed on the side of the baffle (50) away from the first sieve plate (31), and the rubber pad (61) can abut against the inner wall of the working box (30).

7. The vibrating screen according to claim 5, characterized in that, The rotating shaft and the rotating rod are connected by a conveyor belt (70). The conveyor belt (70) is located on the outer side wall of the work box (30). The driving wheel of the conveyor belt (70) is coaxially fixed with the rotating rod, and the driven wheel of the conveyor belt (70) is coaxially fixed with the rotating shaft.

8. The vibrating screen according to claim 1, characterized in that, The feed box (20) is provided with a plurality of guide plates (80), the plurality of guide plates (80) are on the same plane, and the plurality of guide plates (80) are arranged at intervals along the width direction of the working box (30).

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