A sieving and filtering device for particle processing that facilitates sieving.

Abstract

This utility model relates to the technical field of particle screening equipment and discloses a screening and filtering device for particle processing that facilitates screening. It includes a screening box, a feeding box fixedly installed at the top of the screening box, and a feed hopper connected to the top side of one end of the feeding box. A first screen and a second screen are movably installed inside the screening box. A coarse material outlet, a medium material outlet, and a fine material outlet are provided on the bottom side of the screening box. An auger is rotatably installed inside the feeding box, and a servo motor is fixedly connected to the auger shaft end via a coupling. The servo motor drives the auger to achieve uniform feeding, and the flow rate can be adjusted according to the particle characteristics to avoid local overload and clogging of the screen, ensuring continuous operation. Furthermore, this device has a simpler structure compared to traditional screening equipment. The core screening components are mainly installed by hinged connections between springs and partition plates, without a complex transmission structure, making subsequent disassembly, cleaning, and component replacement more convenient, reducing maintenance difficulty and cost.

Description

Technical Field

[0001] This utility model relates to the field of particle screening equipment technology, and in particular to a screening and filtering device for particle processing that facilitates screening. Background Technology

[0002] In the field of particle processing, screening and filtration are crucial for controlling material precision. Current traditional screening equipment often suffers from two major problems: first, uneven feeding easily leads to localized material accumulation on the screen, causing screening blockage, low efficiency, and difficulty in continuous operation; second, most equipment uses single-level screening or has a fixed screen angle, resulting in poor particle grading accuracy and inadequate separation of coarse, medium, and fine materials, requiring repeated manual processing. These pain points have prompted the industry to urgently need a new type of device that can achieve uniform feeding, multi-level screening, and continuous operation.

[0003] Existing technology patent publication number CN217511921U discloses a screening and filtering device for graphite particle processing that facilitates screening. The device includes a main body, an inlet, a outlet, a drive motor, and a rotating plate. The inlet is located at the upper end of the main body, and the outlet is located at the lower end. The drive motor is mounted on one side of the main body, and the rotating plate is mounted on one end of the drive motor via an output shaft. A first slide rod is installed inside the main body, with a first filter plate mounted on its upper end. A second slide rod is also installed inside the main body, with a second filter plate mounted on its upper end. In this screening and filtering device, the drive motor drives the rotating plate to rotate via the output shaft. The first slide rod filters the graphite particles at its upper end, and the second filter plate further screens the graphite particles screened by the first filter plate. This completes the screening process for graphite particles, thereby improving the screening quality of the device.

[0004] Existing technologies achieve particle screening by employing the combined action of a first filter plate, a second filter plate, a first slide bar, and a second slide bar. However, in practical use, this screening device is difficult to control the feed of particles, easily leading to material accumulation on the filter plates, causing blockages, and affecting screening efficiency and effectiveness. Furthermore, the discharge ports of this screening device are dispersed, the structure is complex, and maintenance and use are inconvenient. Therefore, we propose a particle screening and filtering device that facilitates screening, solving the problems of uneven feed speed and inconvenience in use of the existing device. This improves the ease of use and screening effect, reduces the probability of blockage, and thus ensures processing speed. Utility Model Content

[0005] The purpose of this invention is to provide a sieving and filtering device for particle processing that facilitates sieving, thereby solving the problems of uneven feeding speed and inconvenience of use in existing sieving devices mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sieving and filtering device for particle processing that facilitates sieving, comprising a sieving box, a feeding box fixedly installed at the top of the sieving box, a feeding hopper connected to the top side of one end of the feeding box, a first screen and a second screen movably installed inside the sieving box, and a coarse material outlet, a medium material outlet and a fine material outlet opened at the bottom side of the sieving box, with opening and closing valves installed on the outer sides of the coarse material outlet, the medium material outlet and the fine material outlet.

[0007] The feeding box contains a rotatable auger, and a servo motor is fixedly connected to the auger shaft via a coupling. A discharge port is provided on the bottom side of the feeding box away from the servo motor, and the bottom end of the discharge port extends into the screening box. A PLC controller is fixedly embedded in the outer wall of the screening box. The servo motor is fixedly installed on the top of the screening box. An observation window is provided on the outer wall of the screening box near the PLC controller. The PLC controller is electrically connected to the servo motor.

[0008] A first partition plate is fixedly installed between the coarse material outlet and the medium material outlet. A first spring is fixedly installed on the top of the first partition plate. A first screen is hinged between the top of the first spring and the side wall of the upper part of the screening box near the discharge port.

[0009] A second partition plate is fixedly installed between the medium material outlet and the fine material outlet. A second spring is fixedly installed at the top of the second partition plate. A second screen is hinged between the top of the second spring and the side wall of the first partition plate near the medium material outlet.

[0010] The second screen has a smaller mesh diameter than the first screen. Both the second and first screens are at an angle of 15-30 degrees to the horizontal plane. Vibrators are fixedly installed on the bottom side of the lower end of both the second and first screens.

[0011] This utility model discloses a granulation screening and filtration device that facilitates screening. A servo motor drives an auger to achieve uniform feeding, and the flow rate can be adjusted according to particle characteristics to avoid localized overload and clogging of the screen, ensuring continuous operation. Furthermore, this device has a simpler structure compared to traditional screening equipment. The core screening components are mainly hinged together by springs and partition plates, eliminating complex transmission structures and making subsequent disassembly, cleaning, and component replacement more convenient, reducing maintenance difficulty and costs. Simultaneously, the coarse, medium, and fine material outlets are centrally located at the bottom of the screening box, and each outlet is equipped with an on / off valve for easy connection to subsequent receiving equipment. This avoids the chaotic receiving problems caused by dispersed outlets in traditional equipment, improving the uniformity of output and operational convenience, and reducing material loss during transfer. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the feeding box of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the screening box of this utility model; Figure 4 This utility model Figure 3 A magnified structural diagram of A in the middle.

[0014] In the diagram: 1. Screening box; 2. Feeding box; 3. Feed hopper; 4. First screen; 5. Second screen; 6. Coarse material outlet; 7. Medium material outlet; 8. Fine material outlet; 9. Screw conveyor; 10. Servo motor; 11. Discharge port; 12. PLC controller; 13. First partition plate; 14. First spring; 15. Second partition plate; 16. Second spring; 17. Vibrator; 18. Opening and closing valve; 19. Observation window. Detailed Implementation

[0015] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0016] Please see Figure 1 - Figure 4This utility model provides a technical solution: a sieving and filtering device for particle processing that facilitates sieving, comprising a sieving box 1, a feeding box 2 fixedly installed at the top of the sieving box 1, a feed hopper 3 connected to the top side of one end of the feeding box 2, a first screen 4 and a second screen 5 movably installed inside the sieving box 1, a coarse material outlet 6, a medium material outlet 7 and a fine material outlet 8 opened on the bottom side of the sieving box 1, a first partition plate 13 fixedly installed between the coarse material outlet 6 and the medium material outlet 7, a first spring 14 fixedly installed at the top of the first partition plate 13, and the top of the first spring 14 being positioned between the top of the first spring 14 and the side wall of the upper part of the sieving box 1 near the discharge port 11. A first screen 4 is hinged together. A second partition plate 15 is fixedly installed between the medium material outlet 7 and the fine material outlet 8. A second spring 16 is fixedly installed at the top of the second partition plate 15. A second screen 5 is hinged between the top of the second spring 16 and the side wall of the upper end of the first partition plate 13 near the medium material outlet 7. The mesh diameter of the second screen 5 is smaller than that of the first screen 4. The angle between the second screen 5, the first screen 4 and the horizontal plane is 15-30 degrees. A vibrator 17 is fixedly installed on the bottom side of the lower end of the second screen 5 and the first screen 4. Opening and closing valves 18 are installed on the outside of the coarse material outlet 6, the medium material outlet 7 and the fine material outlet 8.

[0017] In operation, the particles to be screened enter the feeding box 2 through the feed hopper 3, and are then guided into the first screen 4 inside the screening box 1. The first screen 4 vibrates under the action of the vibrator 17, and is simultaneously maintained at a 15-30° inclination by the elastic support of the first spring 14. This allows coarse particles larger than its mesh size to slide down the inclined surface towards the coarse material outlet 6 and be discharged. Particles passing through the first screen 4 fall into the second screen 5, which is also inclined at the same angle and vibrates under the action of the vibrator 17 and the second spring 16. Medium particles slide down the inclined surface towards the medium material outlet 7, while fine particles fall through its mesh to the bottom and are discharged through the fine material outlet 8. The first partition plate 13 and the second partition plate 15 respectively isolate the various discharge areas, achieving three-stage screening.

[0018] An auger 9 is rotatably installed inside the feeding box 2. A servo motor 10 is fixedly connected to the shaft end of the auger 9 via a coupling. The servo motor 10 is fixedly installed at the top of the screening box 1. A discharge port 11 is opened on the bottom side of the feeding box 2 away from the servo motor 10. The bottom end of the discharge port 11 extends into the interior of the screening box 1. A PLC controller 12 is fixedly embedded in the outer wall of the screening box 1. An observation window 19 is opened on the outer wall of the screening box 1 near the PLC controller 12. The PLC controller 12 controls the start, stop and speed of the servo motor 10.

[0019] In operation, the particles to be screened enter the feeding box 2 through the feed hopper 3. The PLC controller 12 starts the servo motor 10, which drives the auger 9 to rotate via the coupling, evenly conveying the material to the end of the feeding box 2 and then guiding it into the first screen 4 inside the screening box 1 through the discharge port 11. During the screening process, the speed of the servo motor 10 can be adjusted by the PLC controller 12 to control the feed rate and prevent material accumulation. The operator can observe the internal screening situation through the observation window 19 and make real-time adjustments in conjunction with the PLC controller 12.

[0020] Working principle: First, connect the device to an external power source. Then, pour the granular material into the feed hopper 3. The servo motor 10 and vibrator 17 are turned on by the PLC controller 12. The output shaft of the servo motor 10 drives the auger 9 to rotate through the coupling, so that the granular material is pushed at a uniform speed to the discharge port 11 and falls into the screening box 1. After entering the screening box 1, the granular material falls onto the first screening screen with a larger aperture. The vibrator 17 drives the first screening screen and the second screening screen to vibrate and screen the material, so that the granular material is initially screened. The coarse material is screened and rolls down from the inclined first screening screen to the coarse material outlet 6. The remaining material falls again onto the second screen 5 with a finer aperture to achieve a second screening. Then, the medium and coarse materials in the remaining material are separated from the fine materials. The medium and coarse materials fall into the medium material outlet 7 with the inclined second screen 5, and the fine materials pass through the mesh and fall into the fine material outlet 8, so as to achieve a rapid screening effect of the granular material.

[0021] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A sieving and filtering device for particle processing that facilitates sieving, comprising a sieving box (1), characterized in that: The top of the screening box (1) is fixedly installed with a feeding box (2), and a feeding hopper (3) is connected to the top side of one end of the feeding box (2). The screening box (1) is movably installed with a first screen (4) and a second screen (5). The bottom side of the screening box (1) is provided with a coarse material outlet (6), a medium material outlet (7) and a fine material outlet (8). The feed box (2) is rotatably installed with an auger (9), and the shaft end of the auger (9) is fixedly connected to a servo motor (10) via a coupling.

2. The sieving and filtering device for particle processing according to claim 1, characterized in that: The feeding box (2) has a discharge port (11) on the bottom side away from the servo motor (10). The bottom end of the discharge port (11) extends into the screening box (1). A PLC controller (12) is fixedly embedded in the outer wall of the screening box (1).

3. A sieving and filtering device for particle processing that facilitates sieving, as described in claim 1, characterized in that: A first partition plate (13) is fixedly provided between the coarse material outlet (6) and the medium material outlet (7). A first spring (14) is fixedly installed at the top of the first partition plate (13). A first screen (4) is hinged between the top of the first spring (14) and the side wall of the upper part of the screening box (1) near the discharge port (11).

4. A sieving and filtering device for particle processing that facilitates sieving, as described in claim 3, characterized in that: A second partition plate (15) is fixedly provided between the medium material outlet (7) and the fine material outlet (8). A second spring (16) is fixedly installed at the top of the second partition plate (15). A second screen (5) is hinged between the top of the second spring (16) and the side wall of the upper end of the first partition plate (13) near the medium material outlet (7).

5. A sieving and filtering device for particle processing that facilitates sieving, as described in claim 4, characterized in that: The mesh diameter of the second screen (5) is smaller than that of the first screen (4). The angle between the second screen (5), the first screen (4) and the horizontal plane is 15-30 degrees. Vibrators (17) are fixedly installed on the bottom side of the lower end of the second screen (5) and the first screen (4).

6. A sieving and filtering device for particle processing that facilitates sieving, as described in claim 1, characterized in that: The coarse material outlet (6), medium material outlet (7) and fine material outlet (8) are all equipped with opening and closing valves (18). The servo motor (10) is fixedly installed on the top of the screening box (1). The screening box (1) has an observation window (19) on the outer wall near the PLC controller (12).

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