A granular magnesium oxide metal foreign matter screening device

Abstract

The utility model discloses a kind of granular magnesium oxide metal foreign matter screening devices, it is related to magnesium oxide processing field, including vibration drive base, the upper portion of vibration drive base is equipped with filter screen, the inside of filter screen is equipped with the resistance and mixing mechanism that foreign matter is scattered, the resistance and mixing mechanism includes dust cover, and dust cover is installed in the upper portion of filter screen, the outer surface of vibration drive base is equipped with fixed support frame.The granular magnesium oxide metal foreign matter screening device needs to carry out efficient screening operation to magnesium oxide raw material, with the working of vibration drive base at this time rotary drive motor can work synchronously, and the working process of magnetic bar will be through semicircle resistance and mixing mechanism that swing dispersion rod is reversely resisted, so that magnesium oxide raw material is evenly scattered, can improve screening effect.

Description

Technical Field

[0001] This utility model relates to the field of magnesium oxide processing technology, specifically to a sieving device for granular magnesium oxide metal foreign matter. Background Technology

[0002] Granular magnesium oxide is a granular product formed by extruding magnesium oxide powder through a granulation process. Due to the presence of impurities during its preparation, the granular magnesium oxide material produced needs to be screened to remove impurities during processing.

[0003] To overcome existing defects, prior art (Chinese Patent No. CN119426179A, Publication Date: 2025-02-14) discloses a screening device and screening method for pre-processable magnesium oxide production, relating to the field of magnesium oxide processing technology. It includes an airflow screening mechanism and a negative pressure fan installed on one side inside the airflow screening mechanism. A crushing mechanism is provided on one side of the top of the airflow screening mechanism, and an opening and closing bracket is provided on the top of the crushing mechanism. The airflow screening mechanism includes a screening bracket. By misaligning the mesh openings of the first and second screening cylinders, the size of the mesh openings of the first and second screening cylinders is changed, enabling the screening of impurities of different particle sizes and incompletely crushed magnesium oxide.

[0004] While existing designs can solve some problems, their final screening effect is insufficient when screening metallic impurities in granular magnesium oxide. Metallic impurities are often introduced during the preparation process. These impurities, after dissolving in weak acids, appear as fine black particles, most of which are magnetic impurities that can be attracted by magnets. Traditional screening methods only sort based on particle size, but these metallic impurities vary in size and cannot be effectively removed. This not only seriously affects the purity and quality of granular magnesium oxide but also restricts its application performance. Therefore, traditional screening methods have certain limitations in removing metallic impurities. Utility Model Content

[0005] The purpose of this invention is to provide a sieve for granular magnesium oxide metal foreign matter, so as to solve the problem mentioned in the background art that the metal impurities in granular magnesium oxide cannot be effectively removed.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sieve for granular magnesium oxide metal foreign matter, comprising a vibration drive base, a filter screen installed above the vibration drive base, an anti-mixing mechanism for dispersing foreign matter installed inside the filter screen, the anti-mixing mechanism including a dust cover installed above the filter screen, a fixed support frame installed on the outer surface of the vibration drive base, and an opening and closing auxiliary mechanism for rotating the dust cover installed inside the fixed support frame.

[0007] Furthermore, the opening and closing auxiliary mechanism includes a rotating connector, which is fixedly installed on the connection surface between the filter screen and the outer surface of the dust cover. A rotating limit frame is installed on the outer surface of the dust cover, and a fixed support frame is installed at the upper end of the rotating limit frame.

[0008] Furthermore, a downward sliding rod is installed inside the fixed support frame, and the sliding trajectory of the front end of the downward sliding rod corresponds to the end of the rotating connecting rod. The vibration drive base and the rotating limit frame are integrated into one piece, and the rotation trajectory of the front end of the dust cover corresponds to the interior of the rotating limit frame.

[0009] Furthermore, a rotary drive motor is installed at the top opening of the dust cover, and a driving magnetic rod is installed on the outer surface of the output end of the rotary drive motor. A rotary support frame is installed on the inner surface of the dust cover, and a semi-circular contact plate is installed inside the rotary support frame.

[0010] Furthermore, a swinging dispersion rod is installed at the end of the semi-circular contact plate, and the lower surface of the swinging dispersion rod is in contact with the upper surface of the filter screen. An abutment return spring is installed on the outer surface of the rotating support frame, and the top of the abutment return spring abuts against the outer surface of the semi-circular contact plate.

[0011] Furthermore, the rotation trajectory of the lower end of the magnetic rod abuts against the arc-shaped inner surface of the semi-circular contact plate, and a feed inlet is installed on the outer surface of the dust cover, with the lower end of the feed inlet corresponding to the upper part of the installation position of the filter screen.

[0012] Furthermore, the outer surface of the vibration drive base is equipped with a discharge port, and a strong magnetic mesh is installed inside the discharge port. The filter screen and the discharge port are internally connected, and the interior of the fixed support frame and the exterior of the downward sliding rod form a sliding structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are: When the magnesium oxide metal foreign object screening device needs to perform efficient screening of magnesium oxide raw materials, the rotary drive motor will work synchronously with the operation of the vibration drive base, and the magnetic rod will be driven to work in the process of reverse contact with the swing dispersion rod through the semi-circular contact plate, so that the magnesium oxide raw material is evenly dispersed. This design makes the final screening effect of the equipment better and can achieve efficient extraction of foreign objects. Furthermore, when it is necessary to open the dust cover, the sliding rod is slid down and the connecting rod is rotated to move the dust cover upward. The dust cover will slide along the inside of the rotating limit frame. This design makes the input and output of raw materials more convenient and allows for quick observation during and after processing, which helps to improve the ease of operation of the device. Furthermore, the internal design of the discharge port includes a strong magnetic mesh structure, which improves the performance of the device and makes the screening and processing of magnesium oxide raw materials more comprehensive. It can further adsorb magnetic impurities, thereby further improving the impurity removal effect. At the same time, the entire strong magnetic mesh is detachable, which makes it easy for users to clean it and meets the needs of continuous operation. Furthermore, the entire device utilizes a magnetic rod to fully adsorb metallic impurities in the granular magnesium oxide, which is beneficial for removing metallic impurities from the granular magnesium oxide and improving the purity of the material. The device has a simple structure and is easy to maintain. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the vibration-driven base of this utility model; Figure 2 This is a three-dimensional structural diagram of the rotary drive motor of this utility model; Figure 3 This is a schematic diagram of the three-dimensional structure of the magnetic rod driven by this utility model; Figure 4 This is a three-dimensional structural diagram of the rotating support frame of this utility model; Figure 5 This is a three-dimensional structural diagram of the rotating connector of this utility model; Figure 6 This is a three-dimensional structural diagram of the downward sliding rod of this utility model.

[0015] In the diagram: 1. Vibration drive base; 2. Filter screen; 3. Dust cover; 4. Rotary drive motor; 5. Feed inlet; 6. Fixed support frame; 7. Rotation limit frame; 8. Rotation connecting rod; 9. Drive magnetic rod; 10. Discharge port; 11. Rotation support frame; 12. Semi-circular contact plate; 13. Contact return spring; 14. Swinging dispersion rod; 15. Rotation connecting piece; 16. Strong magnetic mesh; 17. Downward sliding rod. Detailed Implementation

[0016] 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.

[0017] Example 1: Please refer to Figure 2 , Figure 3 and Figure 4This utility model provides the following technical solution: a sieve for granular magnesium oxide metal foreign matter, including a vibration drive base 1, a filter screen 2 installed above the vibration drive base 1, and an anti-mixing mechanism for dispersing foreign matter installed inside the filter screen 2, the anti-mixing mechanism including a dust cover 3, such as... Figure 3 As shown, the dust cover 3 is installed above the filter screen 2, and a fixed support frame 6 is installed on the outer surface of the vibration drive base 1. An opening and closing auxiliary mechanism for rotating the dust cover 3 is installed inside the fixed support frame 6.

[0018] like Figure 2 , Figure 3 and Figure 4 The technical solution shown discloses that: a rotary drive motor 4 is installed at the top opening of the dust cover 3, and a driving magnetic rod 9 is installed on the outer surface of the output end of the rotary drive motor 4; a rotary support frame 11 is installed on the inner surface of the dust cover 3, and a semi-circular contact plate 12 is installed inside the rotary support frame 11; a swinging dispersion rod 14 is installed at the end of the semi-circular contact plate 12, and the lower surface of the swinging dispersion rod 14 is in contact with the upper surface of the filter screen 2, such as... Figure 4 As shown, a return spring 13 is installed on the outer surface of the rotating support frame 11, and the top of the return spring 13 abuts against the outer surface of the semi-circular contact plate 12. The rotation trajectory of the lower end of the magnetic rod 9 also abuts against the arc-shaped inner surface of the semi-circular contact plate 12. The outer surface of the dust cover 3 is equipped with a feed inlet 5, and the lower outlet of the feed inlet 5 corresponds to the installation position above the filter screen 2. The magnetic rod 9 adopts a T-shaped design, and the contact plate connected to the lower end also has an adsorption effect. During the rotation of the contact plate, the magnesium oxide material is oscillating and mixed. At the same time, the contact plate performs adsorption work synchronously, achieving a more efficient mixing and adsorption effect.

[0019] When screening granular magnesium oxide foreign matter is required, magnesium oxide is directly fed into the equipment through the feed port 5 designed on the outside of the dust cover 3. Then, the vibration drive base 1 is activated to drive the entire equipment to vibrate. At this time, the rotary drive motor 4 fixedly installed on the top of the dust cover 3 will rotate synchronously. During the operation of the dust cover 3, the drive magnetic rod 9 fixedly installed on the outer surface of the output end will also rotate synchronously. During the rotation of the drive magnetic rod 9, the granular magnesium oxide foreign matter will be attracted by the magnetic attraction of the drive magnetic rod 9 and be attracted to the outside of the drive magnetic rod 9, thereby completing the separation of the metal foreign matter from the magnesium oxide, and thus realizing the screening of magnesium oxide. During the rotation of the drive magnetic rod 9, it will abut against the inner surface of the semi-circular contact plate 12, such as... Figure 4As shown, because the inner surface of the semicircular contact plate 12 is semicircular, when it is pressed, the semicircular contact plate 12 will rotate in the same direction along the inside of the rotating support frame 11. Since the rotating support frame 11 is fixedly installed inside the filter screen 2, the rotation of the semicircular contact plate 12 remains stable. At this time, the other end of the semicircular contact plate 12 will drive the swinging dispersion rod 14, which is fixedly installed therewith, to move synchronously. Because the semicircular contact plate 12 and the swinging dispersion rod 14 are integrated, they will rotate around the rotating support frame 11 as the center, and the sliding trajectory of the swinging dispersion rod 14 will be closely aligned with the rotation. The magnetic rod 9 rotates on the upper surface of the filter screen 2, thus breaking up the granular magnesium oxide material placed on the filter screen 2 during this process. It can then be continuously screened by driving the magnetic rod 9 to rotate. After the magnetic rod 9 disengages from the semi-circular contact plate 12, the swinging dispersing rod 14 will rotate in the opposite direction due to the reset of the contact spring 13. The lower surface of the forward and reverse rotation trajectories is in contact with the upper surface of the filter screen 2. This design makes the equipment more stable in use. The overall use of the magnetic rod 9 to fully adsorb the metal impurities in the granular magnesium oxide can reduce the content of metal impurities in magnesium oxide, thereby improving the purity of the material. The device has a simple structure and is easy to maintain.

[0020] Example 2: Figure 1 , Figure 5 and Figure 6 The technical solution shown, in order to solve the problems of inconvenient raw material input and output operations and difficult cleaning during and after processing, discloses: an opening and closing auxiliary mechanism including a rotating connector 15, which is fixedly installed on the connecting surface of the filter screen 2 and the dust cover 3. A rotating limit frame 7 is installed on the outer surface of the dust cover 3, and a fixed support frame 6 is installed at the upper end of the rotating limit frame 7. Figure 5 As shown, a downward sliding rod 17 is installed inside the fixed support frame 6, and the sliding trajectory of the front end of the downward sliding rod 17 corresponds to the end of the rotating connecting rod 8. The vibration drive base 1 and the rotating limit frame 7 are integrated into one piece, and the rotation trajectory of the front end of the dust cover 3 corresponds to the interior of the rotating limit frame 7. A discharge port 10 is installed on the outer surface of the vibration drive base 1, and a strong magnetic mesh 16 is installed inside the discharge port 10. The filter screen 2 and the discharge port 10 are internally connected, and the interior of the fixed support frame 6 and the exterior of the downward sliding rod 17 form a sliding structure. The interior of the discharge port 10 is designed to be manually closed. After all screening processing is completed, it can be manually opened to achieve the output of the finished product. At the same time as the material is discharged, the strong magnetic mesh 16 installed inside the discharge port 10 will perform the final adsorption processing operation, making the processing accuracy of the equipment higher.

[0021] After processing, when it is necessary to replace and clean the magnetic rod and the metal foreign objects attracted by the magnetic rod, the sliding rod 17 is moved downwards along the fixed support frame 6 fixedly installed on the outer surface of the vibration drive base 1. During the downward movement of the sliding rod 17, it will reach the end of the rotating connecting rod 8. Since the middle section of the rotating connecting rod 8 is rotatably installed on the outer surface of the fixed support frame 6, as the end of the rotating connecting rod 8 moves downwards, its other end will move in the opposite direction. Since the corresponding end of the rotating connecting rod 8 is rotatably installed on the upper surface of the dust cover 3, the dust cover 3 will move upwards synchronously as the rotating connecting rod 8 rises. Figure 6 As shown, since the outer surface of the connection between the dust cover 3 and the filter screen 2 is fixedly installed with a rotating connector 15, the dust cover 3 will rotate upward around the outside of the filter screen 2 along the rotating connector 15. The rotation process of the dust cover 3 will be carried out inside the fixed support frame 6 fixedly installed on the outer surface of the vibration drive base 1, making the rotation process of the equipment more stable and efficient. After the processing operation is completed, the raw material can be discharged through the discharge port 10 designed through the inside of the filter screen 2. The strong magnetic mesh 16 designed inside the discharge port 10 will screen the raw material again. The discharge port 10 is designed to be manually closed. After all the screening processing is completed, it can be manually opened to output the finished product. This design makes the use of the equipment more reliable.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sieving device for particulate magnesium oxide metal foreign matter, comprising a vibration drive base (1), wherein a filter screen (2) is installed above the vibration drive base (1), characterized in that: The filter screen (2) is equipped with a mixing mechanism that disperses foreign objects. The resisting mixing mechanism includes a dust cover (3), which is installed above the filter screen (2). A fixed support frame (6) is installed on the outer surface of the vibration drive base (1), and an opening and closing auxiliary mechanism for rotating the dust cover (3) is installed inside the fixed support frame (6).

2. The particle magnesium oxide metal foreign matter screening device according to claim 1, characterized in that: The opening and closing auxiliary mechanism includes a rotating connector (15), and the rotating connector (15) is fixedly installed on the outer surface connection surface of the filter screen (2) and the dust cover (3). The outer surface of the dust cover (3) is equipped with a rotating limit frame (7), and the upper end of the rotating limit frame (7) is equipped with a fixed support frame (6).

3. The particle magnesium oxide metal foreign matter screening device according to claim 2, characterized in that: The fixed support frame (6) is equipped with a downward sliding rod (17), and the sliding trajectory of the front end of the downward sliding rod (17) corresponds to the end of the rotating connecting rod (8). The vibration drive base (1) and the rotating limit frame (7) are designed as a single unit, and the rotation trajectory of the front end of the dust cover (3) corresponds to the interior of the rotating limit frame (7).

4. The particle magnesium oxide metal foreign matter screening device according to claim 1, characterized in that: A rotary drive motor (4) is installed at the top opening of the dust cover (3), and a drive magnet (9) is installed on the outer surface of the output end of the rotary drive motor (4). A rotary support frame (11) is installed on the inner surface of the dust cover (3), and a semi-circular contact plate (12) is installed inside the rotary support frame (11).

5. The particle magnesium oxide metal foreign matter screening device according to claim 4, characterized in that: The end of the semicircular contact plate (12) is equipped with a swinging dispersion rod (14), and the lower surface of the swinging dispersion rod (14) is in contact with the upper surface of the filter screen (2). The outer surface of the rotating support frame (11) is equipped with a contact return spring (13), and the top of the contact return spring (13) is in contact with the outer surface of the semicircular contact plate (12).

6. The particle magnesium oxide metal foreign matter screening device according to claim 5, characterized in that: The lower end of the driving magnetic rod (9) rotates in contact with the arc-shaped inner surface of the semi-circular contact plate (12), and the outer surface of the dust cover (3) is equipped with a feed inlet (5), and the lower end of the feed inlet (5) corresponds to the upper part of the installation position of the filter screen (2).

7. The particle magnesium oxide metal foreign matter screening device according to claim 3, characterized in that: The outer surface of the vibration drive base (1) is equipped with a discharge port (10), and a strong magnetic mesh (16) is installed inside the discharge port (10). The filter screen (2) and the discharge port (10) are internally connected, and the interior of the fixed support frame (6) and the exterior of the downward sliding rod (17) form a sliding structure.

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