Screening device for white corundum processing

Abstract

The utility model discloses a screening device for white corundum processing, this scheme contains vibrating screen equipment and sieve hole clear jam mechanism, in vibrating screen equipment, frequency control reduction motor drive crankshaft rotation, drive swing arm swing, make screen frame vibrate, and white corundum raw materials are screened in screen frame, and the raw material of meeting granularity is collected through sieve hole through funnel. Sieve hole clear jam mechanism utilizes dust catcher mechanism, and centrifugal fan makes dust collection bin form negative pressure, and passes through hose, straight pipe and manifold transmission suction force, and simultaneously pull the supporting plate, and make the metal brush fixedly connected on the supporting plate slide at the bottom of screen frame, and the white corundum particles stuck in the sieve hole are pushed out or scraped off, and utilize suction force and suck the particles into dust collection bin. This scheme can efficiently complete white corundum raw material screening, effectively clean sieve hole blockage, avoid big particle mixing into the raw material after screening, guarantee screening quality and equipment stable operation.

Description

Technical Field

[0001] This utility model relates to the field of screening machine technology, specifically to a screening device for processing white corundum. Background Technology

[0002] In the production and processing of white fused alumina, raw material screening is a crucial step, as its effectiveness directly impacts the quality of subsequent processed products. Vibrating screens are commonly used for screening white fused alumina raw materials. During screening, some white fused alumina particles become stuck inside the screen holes. If the blockage area is large and the number of particles is significant, it reduces the number of available screen holes, thus increasing screening time and slowing down work efficiency. Current methods involve stopping the machine and tapping or slapping the screen to force the particles out, which is inconvenient. Therefore, this paper proposes a screening device for white fused alumina processing to address this issue. Utility Model Content

[0003] The purpose of this utility model is to provide a technical solution for a screening device for processing white corundum, thereby addressing the shortcomings mentioned in the background art. To overcome the drawbacks and defects described in the background art, this technical solution includes the following: The device includes a vibrating screen with a screen hole clearing mechanism at its bottom. The vibrating screen comprises a frame, a screen frame mounted on the frame, and a crankshaft rotatably mounted on the frame. A variable frequency reduction motor is fixedly connected to the left side of the frame. A rocker arm is rotatably connected to the bend in the middle section of the crankshaft. Two sleeves are rotatably connected to both sides of the frame, and movable rods are movably connected inside the sleeves. The inner top of each movable rod is rotatably connected to the left and right side walls of the screen frame. The output shaft of the variable frequency reduction motor is fixedly connected to the left end of the crankshaft via a coupling. The end of the rocker arm away from the crankshaft is hinged to the bottom end face of the screen frame. The screen hole clearing mechanism includes a support plate slidably disposed on the bottom surface of the screen frame, a vacuum cleaner mechanism located at the rear of the vibrating screen equipment, and a straight pipe fixed on the bottom surface of the support plate. A flexible hose is connected between the straight pipe and the negative pressure suction end of the vacuum cleaner mechanism. Multiple manifolds penetrating the support plate are connected through the top of the straight pipe. Multiple metal bristles are fixedly connected to the top surface of the support plate.

[0004] As a preferred embodiment of this utility model, the sleeve has a through hole inside for the movable rod to pass through and move.

[0005] As a preferred embodiment of this utility model, a funnel is fixedly connected inside the frame.

[0006] As a preferred embodiment of this utility model: a T-shaped groove is provided at the bottom surface edge of the screen frame, and a T-shaped slider that is adapted to the T-shaped groove and slides back and forth is fixedly connected to the right side wall of the tray.

[0007] As a preferred embodiment of this utility model, a pull rod is fixedly connected to the front side wall of the tray.

[0008] As a preferred embodiment of the present invention: the vacuum cleaner mechanism includes a dust collection chamber, a fan chamber screwed onto the upper end of the dust collection chamber, and a centrifugal fan fixed in the inner cavity of the fan chamber, with a filter element installed at the bottom of the fan chamber.

[0009] As a preferred embodiment of this utility model: a negative pressure suction port is provided on the front side wall of the dust collection chamber, which is connected to the end of the hose away from the straight pipe.

[0010] As a preferred embodiment of this utility model: an end cover is screwed onto the top surface of the fan compartment, and an air outlet is provided on the side wall of the end cover.

[0011] As a preferred embodiment of this utility model: the top port of the manifold has a distance of 0.2cm-0.5cm from the bottom surface of the sieve hole of the sieve frame, and the top tip of the metal bristles contacts the bottom surface of the sieve hole of the sieve frame, which is used to push out the white corundum particles stuck in the sieve hole or let them fall and be sucked away.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: This technical solution achieves efficient screening of white fused alumina raw materials through a vibrating screen. A variable frequency geared motor drives a crankshaft to swing a rocker arm, causing the screen frame to vibrate. Raw materials of the correct particle size fall through the screen holes and are collected by a funnel, ensuring a stable and reliable screening process. The screen hole clearing mechanism combines a vacuum cleaner mechanism with metal brushes. A centrifugal fan creates negative pressure in the dust collection chamber, transmitting suction through a manifold and straight pipe. Simultaneously, the pull plate causes the metal brushes to slide at the bottom of the screen frame, pushing out or scraping off the white fused alumina particles stuck in the screen holes. The suction then draws the fallen particles into the dust collection chamber, effectively clearing screen hole blockages, preventing large particles from mixing into the screened raw materials, and ensuring screening quality. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a schematic diagram of a vibrating screen device; Figure 2This is a schematic diagram of the disassembled vibrating screen; Figure 3 This is a schematic diagram of the screen hole clearing mechanism.

[0015] Explanation of reference numerals in the attached figures: 1. Vibrating screen equipment; 1-1. Frame; 1-2. Rocker arm; 1-3. Funnel; 1-4. Crankshaft; 1-5. Variable frequency geared motor; 1-6. Screen frame; 1-7. Movable rod; 1-8. Sleeve; 2. Screen hole clearing mechanism; 2-1. Dust collection bin; 2-2. Filter element; 2-3. Fan bin; 2-4. Centrifugal fan; 2-5. End cover; 2-6. Support plate; 2-7. Manifold; 2-8. Pull rod; 2-9. Metal brush; 2-10. T-shaped slider; 2-11. Straight pipe; 2-12. Flexible hose. Detailed Implementation

[0016] To provide a clearer explanation and illustration of the technical solution and implementation of this utility model, several preferred specific embodiments for implementing the technical solution of this utility model are described below. The following description is merely exemplary and not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these drawings, the same or similar reference numerals indicate the same or similar parts and features. The various drawings only schematically illustrate the concept and principle of the embodiments of this disclosure and do not necessarily show the specific dimensions and proportions of the various embodiments of this disclosure. The technical solution of this utility model will be clearly and completely described below in conjunction with embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model.

[0017] Example 1: A screening device for white corundum processing includes a vibrating screen 1 and a screen hole clearing mechanism 2. In the vibrating screen 1, a variable frequency reduction motor 1-5 is fixed on the left side of the frame 1-1, and a crankshaft 1-4 is rotatably mounted above it. A rocker arm 1-2 is rotatably connected to the bend in the middle section of the crankshaft 1-4. Two sleeves 1-8 are rotatably connected to the left and right sides of the frame 1-1. Through holes are opened in the sleeves 1-8 for the movable rod 1-7 to pass through and move. The inner side of the top of the movable rod 1-7 is rotatably connected to the left and right side walls of the screen frame 1-6. The output shaft of the variable frequency reduction motor 1-5 is fixedly connected to the left end of the crankshaft 1-4 through a coupling. The end of the rocker arm 1-2 away from the crankshaft 1-4 is hinged to the bottom end face of the screen frame 1-6. A funnel 1-3 is fixed inside the frame 1-1. In the sieve hole clearing mechanism 2, a T-shaped groove is opened at the edge of the bottom surface of the sieve frame 1-6. A T-shaped slider 2-10 that is adapted to the T-shaped groove and slides back and forth is fixed to the right side wall of the support plate 2-6. A pull rod 2-8 is fixed to the front side wall of the support plate 2-6. Multiple metal bristles 2-9 are fixed to the top surface of the support plate 2-6, and their top ends are in contact with the bottom surface of the sieve hole of the sieve frame 1-6. A straight pipe 2-11 is fixed to the bottom surface of the support plate 2-6. Multiple manifolds 2-7 that penetrate the support plate 2-6 are connected through the top of the straight pipe 2-11. The distance between the top end of the manifold 2-7 and the bottom surface of the sieve hole of the sieve frame 1-6 is 0.3cm. The vacuum cleaner mechanism is located at the rear of the vibrating screen equipment 1, including a dust collection chamber 2-1, a fan chamber 2-3 screwed onto the upper port of the dust collection chamber 2-1, a centrifugal fan 2-4 fixed inside the fan chamber 2-3, a filter element 2-2 installed at the bottom of the fan chamber 2-3, a negative pressure suction port set on the front side wall of the dust collection chamber 2-1, which is connected to a straight pipe 2-11 via a flexible hose 2-12, and an end cap 2-5 screwed onto the top surface of the fan chamber 2-3, with an air outlet on the side wall of the end cap 2-5. During operation, the vibrating screen equipment 1 is started to vibrate and screen the white corundum raw material. After completion, the pull rod 2-8 causes the support plate 2-6 to slide back and forth below the screen frame 1-6, and the metal bristles 2-9 push out or allow the white corundum particles stuck in the screen holes to fall off. At the same time, the vacuum cleaner mechanism is activated to suck up the fallen particles.

[0018] Example 2: The screening device for white corundum processing consists of a vibrating screen 1 and a screen hole clearing mechanism 2. In the vibrating screen 1, various components are installed on the frame 1-1. The variable frequency reduction motor 1-5 is located on the left side of the frame 1-1, driving the crankshaft 1-4 to rotate via a coupling. The crankshaft 1-4 drives the screen frame 1-6 to vibrate via a rocker arm 1-2. The screen frame 1-6 achieves stable vibration through a movable rod 1-7 and a sleeve 1-8. A funnel 1-3 is installed inside the frame 1-1 to collect the screened material. In the screen hole clearing mechanism 2, the support plate 2-6 slides back and forth in the T-shaped groove at the bottom of the screen frame 1-6 with the help of the T-shaped slider 2-10. A pull rod 2-8 is located on the front side of the support plate 2-6 for easy operation. The top of the metal brush bristles 2-9 fixed on the support plate 2-6 contacts the bottom surface of the screen holes in the screen frame 1-6. The straight pipe 2-11 and manifold 2-7 are mounted on the support plate 2-6, with the top end of the manifold 2-7 0.2cm away from the bottom surface of the screen holes in the screen frame 1-6. The dust collector mechanism is located at the rear of the vibrating screen equipment 1 and consists of components such as the dust collection chamber 2-1 and the fan chamber 2-3, connected to the straight pipe 2-11 via a flexible hose 2-12. After the white fused alumina raw material is vibrated in the vibrating screen equipment 1, the pull rod 2-8 is pulled to make the support plate 2-6 slide. The metal bristles 2-9 act on the screen holes to push out or make the particles stuck in them fall off. At the same time, the dust collector works to suck away the particles and prevent large white fused alumina particles from being mixed into the raw material after screening.

[0019] Example 3: The screening device for white fused alumina processing includes a vibrating screen 1 and a screen hole clearing mechanism 2. In the vibrating screen 1, the frame 1-1 is an integral support structure. The variable frequency reduction motor 1-5 is installed on the left side of the frame 1-1, driving the crankshaft 1-4 to rotate. The crankshaft 1-4 drives the screen frame 1-6 to vibrate and screen the white fused alumina raw material through the rocker arm 1-2. The movable rod 1-7 moves in the sleeve 1-8 to assist the screen frame 1-6 in stabilizing the vibration. The frame 1-1 is equipped with a funnel 1-3 for collecting materials. Regarding the screen hole clearing mechanism 2, a T-shaped groove is provided at the bottom of the screen frame 1-6. The support plate 2-6 moves back and forth in the groove via a T-shaped slider 2-10. A pull rod 2-8 is located on the front side of the support plate 2-6. Metal bristles 2-9 are fixed on the support plate 2-6 and contact the bottom surface of the screen holes of the screen frame 1-6. A straight pipe 2-11 and a manifold 2-7 are located at the bottom of the support plate 2-6. The distance between the top end of the manifold 2-7 and the bottom surface of the screen holes of the screen frame 1-6 is 0.5cm. The dust collector mechanism is located at the rear of the vibrating screen equipment 1 and consists of a dust collection chamber 2-1, a fan chamber 2-3, a centrifugal fan 2-4, a filter element 2-2, etc., and is connected to the straight pipe 2-11 via a flexible hose 2-12. After the white fused alumina raw material is vibrated and screened, pull the pull rod 2-8 to slide the pallet 2-6. The metal bristles 2-9 clean the particles in the screen holes, pushing them out or causing them to fall off. At the same time, the vacuum cleaner mechanism is activated to suck up the fallen particles, preventing large white fused alumina particles from being mixed into the screened raw material.

[0020] Based on the above-described preferred technical solution, the workflow of this technical solution is explained as follows: White corundum raw material is placed in the screen frame 1-6 of the vibrating screen equipment 1. The variable frequency reduction motor 1-5 is started, and its output shaft drives the crankshaft 1-4 to rotate via a coupling. The rocker arm 1-2, rotatably connected at the bend in the middle section of the crankshaft 1-4, swings accordingly. Since the end of the rocker arm 1-2 away from the crankshaft 1-4 is hinged to the bottom end face of the screen frame 1-6, and the left and right side walls of the screen frame 1-6 are connected to the sleeves 1-8 rotatably connected to the left and right sides of the frame 1-1 via movable rods 1-7, through holes are opened inside the sleeves 1-8 for the movable rods 1-7 to pass through. The screen frame 1-6 begins to vibrate under the action of the rocker arm 1-2. The white fused alumina raw material is vibrated and screened within the screen frame 1-6. Material meeting the particle size requirements falls through the screen holes of the screen frame 1-6 and is collected by the funnel 1-3 fixedly connected inside the frame 1-1. After the vibrating screen is completed, the variable frequency reduction motor 1-5 is turned off. At this time, some white fused alumina particles may be stuck in the screen holes. The dust collector mechanism in the screen hole clearing mechanism 2 is activated. The centrifugal fan 2-4 of the dust collector mechanism works inside the fan chamber 2-3, creating negative pressure in the dust collection chamber 2-1. The negative pressure suction port on the front side wall of the dust collection chamber 2-1 connects to the... A straight pipe 2-11 fixed to the bottom surface of the tray 2-6 is connected to the tray 2-6. Negative pressure is transmitted to the straight pipe 2-11, and then through multiple manifolds 2-7 connected to the top of the straight pipe 2-11, forming a suction force. At the same time, by pulling the pull rod 2-8 fixedly connected to the front side wall of the tray 2-6, the tray 2-6 slides back and forth on the bottom surface of the screen frame 1-6 using the T-shaped slider 2-10 fixedly connected to its right side wall, which matches the T-shaped groove opened at the edge of the bottom surface of the screen frame 1-6. The top ends of the multiple metal bristles 2-9 fixedly connected to the top surface of the tray 2-6 are connected to the screen frame 1-6. When the bottom surface of the sieve hole 6 contacts the sliding plate 2-6, the metal bristles 2-9 push out the white corundum particles stuck in the sieve hole or scrape them out of the sieve hole. The fallen particles are sucked into the dust collection chamber 2-1 by the suction force formed by the manifold 2-7, straight pipe 2-11, and hose 2-12. After being filtered by the filter element 2-2 installed at the bottom of the blower chamber 2-3, they remain in the dust collection chamber 2-1. The air is discharged from the air outlet set on the side wall of the end cap 2-5 screwed on the top surface of the blower chamber 2-3, completing the sieve hole cleaning work and preventing large white corundum particles from being mixed into the screened raw materials.

[0021] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A screening device for processing white corundum, comprising a vibrating screen (1), characterized in that: The bottom of the vibrating screen equipment (1) is provided with a screen hole clearing mechanism (2). The vibrating screen device (1) includes a frame (1-1), a screen frame (1-6) disposed above the frame (1-1), and a crankshaft (1-4) rotatably disposed above the frame (1-1). A variable frequency reduction motor (1-5) is fixedly connected to the left side of the frame (1-1). A rocker arm (1-2) is rotatably connected to the bend in the middle section of the crankshaft (1-4). Two sleeves (1-8) are rotatably connected to both the left and right sides of the frame (1-1). A movable rod (1-7) is movably connected inside the sleeve (1-8). The inner top of the movable rod (1-7) is rotatably connected to the left and right side walls of the screen frame (1-6). The output shaft of the variable frequency reduction motor (1-5) is fixedly connected to the left end of the crankshaft (1-4) through a coupling. The end of the rocker arm (1-2) away from the crankshaft (1-4) is hinged to the bottom end face of the screen frame (1-6). The screen hole clearing mechanism (2) includes a support plate (2-6) slidably disposed on the bottom surface of the screen frame (1-6), a vacuum cleaner mechanism located on the rear side of the vibrating screen equipment (1), and a straight pipe (2-11) fixed on the bottom surface of the support plate (2-6). A hose (2-12) is connected between the straight pipe (2-11) and the negative pressure suction end of the vacuum cleaner mechanism. Multiple manifolds (2-7) penetrating the support plate (2-6) are connected through the top of the straight pipe (2-11). Multiple metal bristles (2-9) are fixedly connected to the top surface of the support plate (2-6).

2. The screening device for processing white corundum according to claim 1, characterized in that: The sleeve (1-8) has a through hole inside for the movable rod (1-7) to pass through and move.

3. The screening device for processing white corundum according to claim 1, characterized in that: The frame (1-1) is internally fixedly connected to a funnel (1-3).

4. The screening device for processing white corundum according to claim 1, characterized in that: The bottom surface edge of the sieve frame (1-6) is provided with a T-shaped groove, and a T-shaped slider (2-10) that is adapted to the T-shaped groove and slides back and forth is fixedly connected to the right side wall of the support plate (2-6).

5. The screening device for processing white corundum according to claim 1, characterized in that: A pull rod (2-8) is fixedly connected to the front side wall of the tray (2-6).

6. The screening device for processing white corundum according to claim 1, characterized in that: The vacuum cleaner mechanism includes a dust collection chamber (2-1), a fan chamber (2-3) screwed onto the upper port of the dust collection chamber (2-1), and a centrifugal fan (2-4) fixed in the inner cavity of the fan chamber (2-3). A filter element (2-2) is installed at the bottom of the fan chamber (2-3).

7. The screening device for processing white corundum according to claim 6, characterized in that: The dust collection chamber (2-1) has a negative pressure suction port on its front side wall that is connected to the end of the hose (2-12) away from the straight pipe (2-11).

8. The screening device for processing white corundum according to claim 6, characterized in that: An end cover (2-5) is screwed onto the top surface of the fan compartment (2-3), and an air outlet is provided on the side wall of the end cover (2-5).

9. The screening device for processing white corundum according to claim 1, characterized in that: The top port of the manifold (2-7) has a distance of 0.2cm-0.5cm from the bottom surface of the sieve hole of the sieve frame (1-6), and the top end of the metal bristles (2-9) contacts the bottom surface of the sieve hole of the sieve frame (1-6) to push out the white corundum particles stuck in the sieve hole or let them fall and be sucked away.

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