A magnesium-carbon brick regenerative material screening device

Abstract

This utility model discloses a screening device for recycled magnesia-carbon bricks, relating to the field of magnesia-carbon brick production. It includes multiple support legs, with two symmetrically arranged guide rails fixedly connected to each leg. A screening frame is slidably connected between the two guide rails. The screening frame is inclined, and a screen is fixedly connected to the bottom of the screening frame. The front end of the screening frame is open, and an opening and closing mechanism is provided at the opening. The opening and closing mechanism includes a support frame fixedly connected to the top of the screening frame. A hydraulic cylinder is fixedly connected to the top of the support frame, and a connecting block is fixedly connected to the output end of the hydraulic cylinder. A baffle is fixedly connected to the bottom of the connecting block. The advantages are: when a large amount of coarse material accumulates at the front end of the screening frame, the hydraulic cylinder drives the baffle to move upward, opening the front end of the screening frame and allowing the coarse material to be discharged from the screening frame. Screening can be performed continuously without stopping the machine, resulting in higher efficiency. When the baffle moves upward, the transmission mechanism rotates the feeding shaft, enabling faster discharge of coarse material and better performance.

Description

Technical Field

[0001] This utility model relates to the field of magnesium-carbon brick production, and in particular to a magnesium-carbon brick recycled material screening device. Background Technology

[0002] Screening recycled magnesia-carbon brick materials is of great importance in several aspects. It ensures that the recycled material has a uniform particle size, resulting in stable and consistent performance of subsequent products. For example, patent document CN222695323U discloses a magnesia-carbon brick recycled material screening device. This device utilizes a return spring and a toggle device to drive a screen frame to slide left and right within a C-shaped movable frame to screen the recycled magnesia-carbon brick material. The screened fine material falls onto the conveyor belt and is transported to the right. The coarse material remaining in the screen frame is lifted by a lifting device, making the right end of the screen frame higher than the left end. The coarse material then falls from the discharge port on the left side of the screen frame under gravity onto the conveyor belt, which then transports it to the right. However, this device cannot perform screening when the coarse material is discharged; the supply of recycled material must be stopped at this time. Therefore, the device cannot perform continuous screening, resulting in insufficient screening efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a magnesium-carbon brick recycled material screening device to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A magnesia-carbon brick recycled material screening device includes multiple support legs, two symmetrically arranged guide rails fixedly connected to the support legs, a screening frame slidably connected between the two guide rails, the screening frame being inclined, a screen mesh fixedly connected to the bottom of the screening frame, an opening at the front of the screening frame with an opening and closing mechanism, the opening and closing mechanism including a bracket fixedly connected to the top of the screening frame, a hydraulic cylinder fixedly connected to the top of the bracket, a connecting block fixedly connected to the output end of the hydraulic cylinder, a baffle fixedly connected to the bottom of the connecting block, the baffle blocking the opening at the front of the screening frame, a material-pushing shaft rotatably connected to the front of the screening frame, the material-pushing shaft being located behind the baffle, transmission mechanisms for driving the material-pushing shaft to rotate on both sides of the screening frame, a push-pull mechanism on the rear side of the screening frame, a conveying mechanism below the screening frame, and a power mechanism on the conveying mechanism.

[0006] Preferably, the transmission mechanism includes a connecting plate, which is fixedly connected to both sides of the baffle. A rack is fixedly connected to the rear side of the connecting plate, and a transmission gear meshes with the rear side of the rack. The transmission gear is fixedly connected to both ends of the feeding shaft.

[0007] Preferably, the push-pull mechanism includes a support plate, which is fixedly connected to the support leg. A power motor is fixedly connected to the bottom of the support plate. A disc is fixedly connected to the output shaft of the power motor. A connecting rod is rotatably connected to the eccentric position on the disc. A push-pull block is rotatably connected to the other end of the connecting rod. The push-pull block is fixedly connected to the rear side of the screening frame.

[0008] Preferably, the conveying mechanism includes two side plates, with a fine material conveyor belt and a coarse material conveyor belt disposed between the two side plates. The fine material conveyor belt is located in front of the coarse material conveyor belt, and the coarse material conveyor belt is located below the screening frame.

[0009] Preferably, the power mechanism includes a support, which is fixedly connected to one side of the side plate. A conveyor motor is fixedly connected to the top of the support. A drive gear is fixedly connected to the output shaft of the conveyor motor. The drive gear meshes with a driven gear. The drive gear and the driven gear are fixedly connected to the power input ends of the fine material conveyor belt and the coarse material conveyor belt, respectively.

[0010] Preferably, a material gathering plate is fixedly connected to the bottom front end of the screening frame, the front end of the screen is fixedly connected to the material gathering plate, the material gathering plate is located below the feeding shaft, a guide plate is fixedly connected to the bottom of the material gathering plate, and the front end of the guide plate extends above the coarse material conveyor belt.

[0011] The beneficial effects are as follows: when a large amount of coarse material accumulates at the front end of the screening frame, the hydraulic cylinder drives the baffle to move upward, opening the front end of the screening frame and allowing the coarse material to be discharged from the screening frame. Screening can be carried out continuously without stopping the machine, resulting in higher efficiency. When the baffle moves upward, the material feeding shaft is rotated through the transmission mechanism, which can discharge the coarse material more quickly and achieve better results. The conveying mechanism can transport fine and coarse materials to two directions respectively, making collection more convenient.

[0012] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a first perspective view of a magnesium-carbon brick recycled material screening device according to the present invention;

[0015] Figure 2 This is a second perspective view of a magnesium-carbon brick recycled material screening device according to the present invention;

[0016] Figure 3 This is a right view of the magnesium-carbon brick recycled material screening device described in this utility model;

[0017] Figure 4 This is a perspective view of the opening and closing mechanism of a magnesium-carbon brick recycled material screening device according to the present invention;

[0018] Figure 5 This utility model describes a magnesium-carbon brick recycled material screening device. Figure 1 Enlarged view of point A in the middle;

[0019] Figure 6 This is a right-side sectional view of the screening frame of the magnesium-carbon brick recycled material screening device described in this utility model.

[0020] The reference numerals in the attached drawings are explained as follows: 1. Support leg; 2. Guide rail; 3. Screening frame; 301. Feeding shaft; 302. Material gathering plate; 303. Guide plate; 4. Screen; 5. Opening and closing mechanism; 501. Support; 502. Hydraulic cylinder; 503. Connecting block; 504. Baffle; 6. Transmission mechanism; 601. Connecting plate; 602. Rack; 603. Transmission gear; 7. Push-pull mechanism; 701. Support plate; 702. Power motor; 703. Disc; 704. Connecting rod; 705. Push-pull block; 8. Conveying mechanism; 801. Side plate; 802. Fine material conveyor belt; 803. Coarse material conveyor belt; 9. Power mechanism; 901. Support; 902. Conveying motor; 903. Drive gear; 904. Driven gear. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] like Figures 1-6As shown, a magnesium carbon brick recycled material screening device includes multiple support legs 1. Two guide rails 2, symmetrically arranged on the left and right sides, are welded to the support legs 1. A screening frame 3 is slidably connected between the two guide rails 2 in a front-to-back direction. The screening frame 3 is inclined, with the front lower than the back. A screen 4 is fixedly connected to the bottom of the screening frame 3. Recycled material is poured into the screening frame 3 from the rear end and moves forward along the screening frame 3. During this process, fine material falls through the screen 4, while coarse material remains inside the screening frame 3. The front end of the screening frame 3 is open, and an opening and closing mechanism 5 is provided at the opening. The opening and closing mechanism 5 includes a bracket 501, which is fixedly connected to the top of the screening frame 3 by screws. A hydraulic cylinder 502 is fixedly connected to the top of the bracket 501 by screws. A connecting block 503 is fixedly connected to the output end of 502. A baffle 504 is fixedly connected to the bottom of the connecting block 503 by screws. The baffle 504 blocks the opening at the front end of the screening frame 3. The baffle 504 can block the coarse material inside the screening frame 3, prolonging the screening time of the coarse material and making the screening more thorough. When the coarse material accumulates to a certain amount, the baffle 504 moves upward and the coarse material can be discharged from the screening frame 3. The front end of the screening frame 3 is rotatably connected to the feeding shaft 301 through the bearing. The feeding shaft 301 is located behind the baffle 504. The screening frame 3 is provided with transmission mechanisms 6 on both sides for driving the feeding shaft 301 to rotate through the baffle 504. A push-pull mechanism 7 is provided on the rear side of the screening frame 3. A conveying mechanism 8 is provided below the screening frame 3. A power mechanism 9 is provided on the conveying mechanism 8.

[0025] The transmission mechanism 6 includes a connecting plate 601, which is fixedly connected to both sides of the baffle 504 by screws. A rack 602 is welded to the rear side of the connecting plate 601, and a transmission gear 603 meshes with the rear side of the rack 602. The transmission gear 603 is fixedly connected to both ends of the feeding shaft 301. When the baffle 504 moves upward, the rack 602 also moves upward. The rack 602 drives the transmission gear 603 to rotate, and the transmission gear 603 drives the feeding shaft 301 to rotate. The feeding shaft 301 pushes the coarse material forward, so that the coarse material is discharged more quickly.

[0026] The push-pull mechanism 7 includes a support plate 701, which is connected to the support leg 1 by screws. A power motor 702 is fixedly connected to the bottom of the support plate 701 by screws. A disc 703 is fixedly connected to the output shaft of the power motor 702. A connecting rod 704 is rotatably connected to the eccentric position on the disc 703 by a pin. A push-pull block 705 is rotatably connected to the other end of the connecting rod 704 by a pin. The push-pull block 705 is fixedly connected to the rear side of the screening frame 3 by screws. The power motor 702 drives the disc 703 to rotate, so that the connecting rod 704 drives the screening frame 3 to reciprocate back and forth through the push-pull block 705, thereby improving the screening efficiency.

[0027] The conveying mechanism 8 includes two side plates 801, with a fine material conveyor belt 802 and a coarse material conveyor belt 803 arranged between the two side plates 801. The fine material conveyor belt 802 is located in front of the coarse material conveyor belt 803, which is located below the screening frame 3. The screened fine material falls onto the fine material conveyor belt 802 and is conveyed backward, while the coarse material falls onto the coarse material conveyor belt 803 and is conveyed forward. By conveying the fine and coarse materials in two directions, it is possible to collect them at fixed points, making it more convenient to use.

[0028] The power mechanism 9 includes a support 901, which is fixedly connected to one side of the side plate 801 by screws. A conveyor motor 902 is fixedly connected to the top of the support 901 by screws. The output shaft of the conveyor motor 902 is fixedly connected to a drive gear 903. The drive gear 903 meshes with a driven gear 904. The drive gear 903 and the driven gear 904 are respectively fixedly connected to the power input ends of the fine material conveyor belt 802 and the coarse material conveyor belt 803. Since the drive gear 903 and the driven gear 904 rotate in opposite directions, the fine material conveyor belt 802 and the coarse material conveyor belt 803 also rotate in opposite directions, thereby realizing the conveying of fine and coarse materials in two directions.

[0029] A material gathering plate 302 is fixedly connected to the bottom front end of the screening frame 3. The front end of the screen 4 is fixedly connected to the material gathering plate 302. The material gathering plate 302 is located below the feeding shaft 301. The screened coarse material accumulates on the material gathering plate 302 and waits to be discharged. A guide plate 303 is fixedly connected to the bottom of the material gathering plate 302. The front end of the guide plate 303 extends above the coarse material conveyor belt 803, so that the coarse material can accurately fall onto the coarse material conveyor belt 803 after being discharged.

[0030] Working principle: During use, recycled magnesia-carbon brick material is poured into the screening frame 3 from the rear end. The recycled material moves forward along the screening frame 3. During this process, fine material falls through the screen 4 onto the fine material conveyor belt 802. During screening, the power motor 702 drives the disc 703 to rotate, causing the connecting rod 704 to drive the screening frame 3 to reciprocate back and forth through the push-pull block 705, improving screening efficiency. Coarse material remains in the screening frame 3 and gradually accumulates on the material gathering plate 302. When there is a lot of coarse material, the hydraulic cylinder 502 drives the baffle 504 to move upward, and the coarse material can be discharged from the front end of the screening frame 3. The coarse material falls onto the guide plate 303 and slides down. When the baffle 504 moves upward on the coarse material conveyor belt 803, it drives the rack 602 to move upward. The rack 602 drives the transmission gear 603 to rotate, and the transmission gear 603 drives the material-pushing shaft 301 to rotate. The material-pushing shaft 301 pushes the coarse material forward, so that the coarse material is discharged more quickly. The drive gear 903 and the driven gear 904 are driven to rotate by the conveyor motor 902. The drive gear 903 and the driven gear 904 rotate in opposite directions, so that the fine material conveyor belt 802 and the coarse material conveyor belt 803 rotate in opposite directions. The fine material conveyor belt 802 conveys the fine material backward, and the coarse material conveyor belt 803 conveys the coarse material forward.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A screening device for recycled magnesium carbon bricks, comprising multiple support legs (1), characterized in that: Two symmetrically arranged guide rails (2) are fixedly connected to the support leg (1). A screening frame (3) is slidably connected between the two guide rails (2). The screening frame (3) is inclined. A screen (4) is fixedly connected to the bottom of the screening frame (3). The front end of the screening frame (3) is open and an opening and closing mechanism (5) is provided at the opening. The opening and closing mechanism (5) includes a bracket (501). The bracket (501) is fixedly connected to the top of the screening frame (3). A hydraulic cylinder (502) is fixedly connected to the top of the bracket (501). A connecting block (503) is fixedly connected to the output end of the hydraulic cylinder (502). A baffle (504) is fixedly connected to the bottom of the connecting block (503). The baffle (504) blocks the opening at the front end of the screening frame (3). A feeding shaft (301) is rotatably connected to the front end of the screening frame (3). The feeding shaft (301) is located behind the baffle (504). A transmission mechanism (6) is provided on both sides of the screening frame (3) for driving the feeding shaft (301) to rotate by the baffle (504). A push-pull mechanism (7) is provided on the rear side of the screening frame (3). A conveying mechanism (8) is provided below the screening frame (3). A power mechanism (9) is provided on the conveying mechanism (8).

2. The magnesium-carbon brick recycled material screening device according to claim 1, characterized in that: The transmission mechanism (6) includes a connecting plate (601), which is fixedly connected to both sides of the baffle (504). A rack (602) is fixedly connected to the rear side of the connecting plate (601), and a transmission gear (603) meshes with the rear side of the rack (602). The transmission gear (603) is fixedly connected to both ends of the feeding shaft (301).

3. The magnesium-carbon brick recycled material screening device according to claim 1, characterized in that: The push-pull mechanism (7) includes a support plate (701), which is fixedly connected to the support leg (1). A power motor (702) is fixedly connected to the bottom of the support plate (701). A disc (703) is fixedly connected to the output shaft of the power motor (702). A connecting rod (704) is rotatably connected to the eccentric position on the disc (703). A push-pull block (705) is rotatably connected to the other end of the connecting rod (704). The push-pull block (705) is fixedly connected to the rear side of the screening frame (3).

4. The magnesium-carbon brick recycled material screening device according to claim 1, characterized in that: The conveying mechanism (8) includes two side plates (801), and a fine material conveyor belt (802) and a coarse material conveyor belt (803) are arranged between the two side plates (801). The fine material conveyor belt (802) is located in front of the coarse material conveyor belt (803), and the coarse material conveyor belt (803) is located below the screening frame (3).

5. A magnesium-carbon brick recycled material screening device according to claim 4, characterized in that: The power mechanism (9) includes a support (901), which is fixedly connected to one side of the side plate (801). A conveyor motor (902) is fixedly connected to the top of the support (901). A drive gear (903) is fixedly connected to the output shaft of the conveyor motor (902). The drive gear (903) meshes with a driven gear (904). The drive gear (903) and the driven gear (904) are fixedly connected to the power input ends of the fine material conveyor belt (802) and the coarse material conveyor belt (803), respectively.

6. The magnesium-carbon brick recycled material screening device according to claim 4, characterized in that: A material gathering plate (302) is fixedly connected to the bottom front end of the screening frame (3), and the front end of the screen (4) is fixedly connected to the material gathering plate (302). The material gathering plate (302) is located below the material feeding shaft (301), and a guide plate (303) is fixedly connected to the bottom of the material gathering plate (302). The front end of the guide plate (303) extends above the coarse material conveyor belt (803).

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