A high efficiency screening apparatus
By controlling the expansion and contraction of the screening components through a hydraulic system, the problem of disassembling the screen in traditional screening equipment is solved, enabling efficient and rapid multi-stage screening, improving screening efficiency and accuracy, and extending the service life of the screen.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN RUISAIKE ENERGY TECH CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional screening equipment requires stopping the machine and disassembling the screen when screening materials of different particle sizes. This operation is complicated and inefficient, especially in multi-stage screening scenarios.
The hydraulic system controls the expansion and contraction of multiple screening components. By independently controlling the screen aperture of the screening components, it is possible to quickly switch between different screen mesh combinations without disassembling the screen.
It significantly improves screening efficiency, adapts to the diverse needs of multi-stage screening, enhances screening accuracy and consistency, and extends the service life of the screen.
Smart Images
Figure CN224293880U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of chemical powder screening equipment, and in particular to a high-efficiency screening equipment. Background Technology
[0002] In the production of chemical powders, screening is a critical process that directly affects product quality and production efficiency. Traditional screening equipment (such as vibrating screens) suffers from the problem of cumbersome screen replacement. When screening materials of different particle sizes, the machine must be stopped to disassemble and replace the screens, which is complex and time-consuming. This is especially true for multi-stage screening scenarios, where frequent adjustments lead to low efficiency.
[0003] Therefore, it is necessary to provide a high-efficiency screening device to solve the above-mentioned technical problems. Utility Model Content
[0004] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a high-efficiency screening device that can control the expansion and contraction of multiple screening components, and can quickly switch between different mesh screen combinations without disassembling the screen, significantly improving screening efficiency and adapting to the diverse needs of multi-stage screening.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A high-efficiency screening device includes: a screening box, with multiple vibrating motors installed at the bottom of the screening box, which can cause the screening box to vibrate; multiple screening components are inclinedly arranged inside the screening box, and the screening components are retractable; the multiple screening components have the same structure but different screen mesh apertures, and the multiple screening components are independently controlled; when one or several specific screening components are needed for screening, the other screening components are retracted, so that one or several specific screening components can perform screening.
[0007] Preferably, the screening assembly includes a screen mechanism, which includes two first hydraulic cylinders fixed to one side of the screening box. The telescopic shafts of the two first hydraulic cylinders are located in the screening box. A connecting block is fixed on the output shaft of each of the two first hydraulic cylinders. A fixing strip is fixed between the two connecting blocks. A flexible screen is fixedly installed on one side of the fixing strip.
[0008] Preferably, the tilt angle of the screening component is 3-5°.
[0009] Preferably, the screening assembly further includes a first spiral frame fixed to the inner wall of the screening box, the end of the flexible screen away from the fixed strip is fixed to the first spiral frame, a plurality of support strips are fixedly installed at the bottom of the flexible screen, and T-shaped blocks are fixed at both ends of the support strips. Two T-shaped grooves are symmetrically opened at the top of the first spiral frame, and the plurality of T-shaped blocks are slidably arranged in the corresponding T-shaped grooves.
[0010] Preferably, a second spiral frame is provided above the flexible screen. The second spiral frame is used to squeeze the flexible screen from above and cooperate with the first spiral frame to fix the flexible screen. A plurality of second hydraulic cylinders are fixed to the top of the second spiral frame, and the plurality of second hydraulic cylinders are fixed to the inner wall of the screening box. A flexible rubber pad is fixedly installed at the bottom of the second spiral frame.
[0011] Preferably, the screening assembly further includes a guide plate, which is in the shape of an inverted cone.
[0012] Preferably, the bottom of the screening box is fixed with multiple upper support legs, and the bottom of each of the multiple upper support legs is fixedly installed with a spring, and the bottom end of the spring is fixedly installed with a lower support leg.
[0013] Preferably, a V-shaped dispersing plate is fixed inside the upper part of the screening box, with the pointed corner of the V-shaped dispersing plate facing upwards, and multiple material discharge holes are opened on the V-shaped dispersing plate.
[0014] Preferably, a plurality of screening ports are provided on the side of the screening box where the first hydraulic cylinder is installed, and a sealing door is installed outside the screening ports.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] (1) The expansion and contraction of multiple screening components are independently controlled by the hydraulic system. Different mesh screen combinations can be quickly switched without disassembling the screen, which significantly improves screening efficiency and adapts to the diverse needs of multi-stage screening.
[0017] (2) The V-shaped dispersion plate and material drop hole design make the material evenly dispersed to the screen. Combined with the screen tilt angle and vibration, it avoids material accumulation or local overload, and improves screening accuracy and consistency.
[0018] (3) The design of fixing the first loop frame and hydraulically pressing the second loop frame, combined with the flexible rubber pad, ensures that the screen fits firmly during vibration, prevents the screen from deforming or shifting, and avoids damage to the screen from rigid contact, thus extending its service life. Attached Figure Description
[0019] Figure 1 A schematic diagram of the structure of the high-efficiency screening equipment provided by this utility model;
[0020] Figure 2 A cross-sectional structural schematic diagram of the high-efficiency screening equipment provided by this utility model;
[0021] Figure 3 This is a schematic diagram of the screening component.
[0022] Figure 4 This is an exploded view of the screening component;
[0023] Figure 5 This is a schematic diagram of the front of the screen mechanism;
[0024] Figure 6 This is a schematic diagram of the structure on the back of the screen mechanism;
[0025] Figure 7 for Figure 5 Enlarged view of section A;
[0026] Figure 8 This is a schematic diagram of the V-shaped dispersion plate.
[0027] The corresponding names of the reference numerals in the attached drawings are as follows: 1. Screening box; 2. Vibrating motor; 3. Screening assembly; 4. Screening mechanism; 41. First hydraulic cylinder; 42. Connecting block; 43. Fixing strip; 44. Flexible screen; 45. Supporting strip; 46. T-block; 5. First loop frame; 51. T-slot; 6. Second loop frame; 61. Second hydraulic cylinder; 7. Guide plate; 8. Sealing door; 9. Upper support leg; 10. Spring; 11. Lower support leg; 12. V-shaped dispersing plate; 13. Material discharge hole. Detailed Implementation
[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.
[0029] Example 1
[0030] like Figure 1-8As shown, the high-efficiency screening equipment provided by this utility model includes: a screening box 1, with multiple vibrating motors 2 installed at the bottom of the screening box 1. The multiple vibrating motors 2 can cause the screening box 1 to vibrate, thereby achieving the effect of screening powder inside. Multiple screening components 3 are inclinedly arranged inside the screening box 1 at an angle of 3-5°. The screening components 3 are retractable. The multiple screening components 3 have the same structure, but different screen mesh apertures (for example, from top to bottom, the screen mesh can be 60 mesh, 80 mesh, 100 mesh, 200 mesh, etc.). Each screening component 3 is independently controlled, meaning it can be manually controlled. When one or more specific screening components 3 need to be screened, the other screening components 3 are retracted, allowing individual or several specific screening components 3 to perform screening. This allows materials with a specific particle diameter to be obtained by screening with screens of the ideal mesh size individually or in combination. The operation is simple. Furthermore, disassembly is not required. The screening assembly 3 includes a screen mechanism 4, which includes two first hydraulic cylinders 41 fixed to one side of the screening box 1. The telescopic shafts of the two first hydraulic cylinders 41 are located in the screening box 1. Connecting blocks 42 are fixed on the output shafts of the two first hydraulic cylinders 41. A fixing strip 43 is fixed between the two connecting blocks 42. A flexible screen 44 is fixedly installed on one side of the fixing strip 43. The flexible screen 44 can be made of woven wire mesh or polyurethane mesh, but is not limited to these. When the screen mechanism 4 needs to retract, the two first hydraulic cylinders 41 are activated to retract it. The retraction of the first hydraulic cylinders drives the connecting blocks 42 to move, and the two connecting blocks 42 drive the fixing strip 43 to move. The movement of the fixing strip 43 drives the flexible screen 44 to retract. When the flexible screen 44 needs to be unfolded, the first hydraulic cylinders 41 are activated in the opposite direction to unfold the flexible screen 44.
[0031] Example 2
[0032] like Figure 4 As shown, the screening assembly 3 also includes a first loop frame 5 fixed on the inner wall of the screening box 1. The end of the flexible screen 44 away from the fixing strip 43 is fixed to the first loop frame 5. A plurality of support strips 45 are fixedly installed at the bottom of the flexible screen 44. T-shaped blocks 46 are fixed at both ends of the support strips 45. Two T-shaped grooves 51 are symmetrically opened at the top of the first loop frame 5. The plurality of T-shaped blocks 46 are slidably arranged in the corresponding T-shaped grooves 51.
[0033] In this embodiment, when the flexible screen 44 is in the unfolded state, multiple support bars 45 support the flexible screen 44, preventing the flexible screen 44 from becoming too bulky and affecting the screening effect. At the same time, it increases the fixed area of the flexible screen 44 and improves the stability of the fixation. When the flexible screen 44 is retracted, the support bars 45 will move under the push of the connecting block 42, and the multiple support bars 45 will converge to one side. During this process, the flexible screen 44 will be folded and stored under the action of the multiple support bars 45, which is more conducive to the retraction of the flexible screen 44.
[0034] Example 3
[0035] like Figure 4 As shown, a second loop frame 6 is provided above the flexible screen 44. The second loop frame 6 is used to squeeze the flexible screen 44 from above and, together with the first loop frame 5, fixes the flexible screen 44. Multiple second hydraulic cylinders 61 are fixed to the top of the second loop frame 6, and all of the multiple second hydraulic cylinders 61 are fixed to the inner wall of the screening box 1. A flexible rubber pad is fixedly installed at the bottom of the second loop frame 6. In use, after the flexible screen 44 is unfolded, the multiple second hydraulic cylinders 61 are activated to move the second loop frame 6 downward and press the flexible rubber pad on it tightly onto the flexible screen 44. At this time, the first loop frame 5 is below the flexible screen 44. Under the action of the first loop frame 5 and the second loop frame 6, the flexible screen 44 is stably fixed to ensure the stability during screening. In the above process, the purpose of setting the flexible rubber pad is to avoid the second loop frame 6 directly contacting the flexible screen 44 and damaging the flexible screen 44.
[0036] Furthermore, the screening assembly 3 also includes a guide plate 7, which is in the shape of an inverted cone and can guide the powder to fall onto the flexible screen 44.
[0037] Example 4
[0038] like Figure 1 As shown, the bottom of the screening box 1 is fixed with multiple upper support legs 9, and the bottom of each of the multiple upper support legs 9 is fixedly installed with a spring 10. The bottom of the spring 10 is fixedly installed with a lower support leg 11. This structure design allows the screening box 1 to vibrate when the vibrating motor 2 is running, so as to achieve the purpose of screening.
[0039] Example 5
[0040] like Figure 2 and 8As shown, a V-shaped dispersing plate 12 is fixed inside the upper part of the screening box 1. The pointed corner of the V-shaped dispersing plate faces upward, which has a dispersing effect on the powder falling from the inlet of the screening box 1. The V-shaped dispersing plate 12 has multiple discharge holes 13. When the powder falls on the V-shaped dispersing plate 12, it moves downward along the inclined surface of the V-shaped dispersing plate 12. During the movement, some of the powder falls onto the screen through different discharge holes 13, so that the powder can be dispersed on the screen relatively evenly.
[0041] Example 6
[0042] like Figure 1 As shown, multiple screening ports are provided on the side of the screening box 1 away from the first hydraulic cylinder 41. The screening component 3 screens out larger particles of powder and discharges them through the screening ports. A sealing door 8 is installed outside the screening ports. During screening, the sealing door 8 is closed. After screening, the sealing door 8 is opened to clean away the screened large particles of powder.
[0043] This device also includes a hydraulic pump and corresponding pipelines, operating valves, etc., which together form a hydraulic system. The operating valves control the extension or retraction of each hydraulic cylinder.
[0044] Working Principle: During use, the powder enters from the top inlet of the screening box 1 and first falls onto the internally installed V-shaped dispersing plate 12. The V-shaped dispersing plate 12 has upward-facing sharp corners and multiple rows of discharge holes 13. As the material slides down the inclined surface, it is evenly dispersed into the lower screen area through the discharge holes 13, avoiding local accumulation and improving screening uniformity. The operator independently controls the screening component 3 via the hydraulic system according to the target particle diameter: activating the first hydraulic cylinder 41 corresponding to the screen, pushing the connecting block 42 and fixing strip 43 to unfold the flexible screen (such as metal wire or polyurethane material), while simultaneously retracting the unselected screen to fold and store it. The unfolded flexible screen 44 is driven by the second hydraulic cylinder 61 to press down the second loop frame 6, which, together with the bottom first loop frame 5, clamps the screen. Flexible rubber pads prevent damage to the screen, ensuring its stability during vibration. The support strip 45 and T-shaped block 46 provide rigid support when the screen is unfolded, preventing "bulging" deformation, and maintain a compact structure when retracted, folding with the screen.
[0045] After multiple vibrating motors 2 are started, they drive the screening box 1 to vibrate at high frequency. The screen, tilted at 3-5°, causes the powder to slide downwards under the action of vibration and gravity. Particles smaller than the screen aperture pass through the screen and fall layer by layer to the corresponding collection device, while coarse particles that do not pass through the screen slide along the screen surface to the side wall and are finally discharged through the side wall screening port. During the screening process, the spring support legs at the bottom of the screening box 1 buffer the vibration impact through elastic extension and contraction, maintaining the stable operation of the equipment. After screening, the sealing door 8 can be opened to clean the large particles retained in the side wall screening port. This design achieves multi-stage screening without disassembly by quickly switching the screen combination hydraulically, combined with vibration dispersion and flexible screen fixing technology.
Claims
1. A high-efficiency screening device, characterized in that, include: Screening box (1), with multiple vibrating motors (2) installed at the bottom of the screening box (1). The multiple vibrating motors can cause the screening box (1) to vibrate. Multiple screening components (3) are inclinedly arranged inside the screening box (1). The screening components (3) can be retracted. The multiple screening components (3) have the same structure, but the screen mesh aperture is different. The multiple screening components (3) are independently controlled. When one or several specific screening components (3) are needed for screening, the other screening components (3) are retracted so that one or several specific screening components (3) can perform screening.
2. The high-efficiency screening equipment according to claim 1, characterized in that: The screening assembly (3) includes a screen mechanism (4), which includes two first hydraulic cylinders (41) fixed on one side of the screening box (1). The telescopic shafts of the two first hydraulic cylinders (41) are located in the screening box (1). A connecting block (42) is fixed on the output shaft of the two first hydraulic cylinders (41). A fixing strip (43) is fixed between the two connecting blocks (42). A flexible screen (44) is fixed on one side of the fixing strip (43).
3. The high-efficiency screening equipment according to claim 1, characterized in that: The tilt angle of the screening component (3) is 3-5°.
4. The high-efficiency screening equipment according to claim 2, characterized in that: The screening assembly (3) further includes a first loop frame (5) fixed on the inner wall of the screening box (1). The flexible screen (44) is fixed to the first loop frame (5) at one end away from the fixed strip (43). Multiple support strips (45) are fixedly installed at the bottom of the flexible screen (44). T-shaped blocks (46) are fixed at both ends of the support strips (45). Two T-shaped grooves are symmetrically opened at the top of the first loop frame (5). The multiple T-shaped blocks (46) are slidably arranged in the corresponding T-shaped grooves.
5. The high-efficiency screening equipment according to claim 4, characterized in that: A second loop frame (6) is provided above the flexible screen (44). The second loop frame (6) is used to squeeze the flexible screen (44) from above and cooperate with the first loop frame (5) to fix the flexible screen (44). A plurality of second hydraulic cylinders (61) are fixed on the top of the second loop frame (6). The plurality of second hydraulic cylinders (61) are all fixed to the inner wall of the screening box (1). A flexible rubber pad is fixedly installed on the bottom of the second loop frame (6).
6. The high-efficiency screening equipment according to claim 1, characterized in that: The screening assembly (3) also includes a guide plate (7), which is in the shape of an inverted cone.
7. The high-efficiency screening equipment according to claim 1, characterized in that: The bottom of the screening box (1) is fixed with multiple upper support legs (9), and the bottom of each of the multiple upper support legs (9) is fixedly installed with a spring (10), and the bottom end of the spring (10) is fixedly installed with a lower support leg (11).
8. The high-efficiency screening equipment according to claim 1, characterized in that: A V-shaped dispersing plate (12) is fixed inside the upper part of the screening box (1). The V-shaped dispersing plate (12) has its sharp corners facing upwards and multiple material discharge holes (13) are opened on the V-shaped dispersing plate (12).
9. The high-efficiency screening equipment according to claim 2, characterized in that: Multiple screening ports are provided on the side of the screening box (1) where the first hydraulic cylinder (41) is installed, and a sealing door (8) is installed outside the screening ports.