A drum screen for spent sand treatment

Abstract

The utility model relates to the technical field of waste sand processing discloses a drum screen for waste sand treatment, including base, the base rear end fixedly connected with motor no.

Description

Technical Field

[0001] This utility model relates to the field of waste sand processing technology, and in particular to a drum screen for waste sand processing. Background Technology

[0002] The rotary drum screen used for waste sand treatment can drive the inclined drum to rotate via a motor, causing the waste sand to tumble and roll inside the drum. With the help of a grading screen, qualified waste sand and unqualified waste sand are separated. It can also be combined with a bidirectional rotation design to improve the thoroughness of screening. It is characterized by being less prone to clogging, high screening efficiency, environmental protection and stable operation, which helps to achieve efficient sorting and subsequent processing and utilization of waste sand.

[0003] Existing rotary drum screens rely solely on the unidirectional rotation of the screen cylinder for material screening. Waste sand tends to move along a fixed trajectory within the screen cylinder, and some particles fail to fully contact the screen mesh, resulting in incomplete screening. This is especially problematic for waste sand with high viscosity or small particle size differences, where qualified particles are easily trapped and discharged along with unqualified materials, reducing sorting efficiency. In response to the technical problem that the screen cylinder can only move along a fixed trajectory, this application proposes a drum screen for waste sand treatment. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where the screen cylinder can only move along a fixed trajectory. This invention proposes a rotary screen for waste sand treatment. By rotating the screen body, it can repeatedly rotate horizontally, breaking the fixed trajectory of the waste sand, increasing the frequency of particle contact and collision dispersion with the screen mesh, preventing qualified particles from being trapped, improving screening efficiency, reducing screen hole clogging, lowering downtime maintenance frequency, and enhancing adaptability to different types of waste sand, thus overcoming the limitations of traditional equipment.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A rotary screen for waste sand treatment includes a base. A motor is fixedly connected to the rear end of the base. The drive end of the motor is connected to a movable frame via a reciprocating assembly to drive the rotary screen body to rotate horizontally. A second motor is fixedly connected to the inner wall of the movable frame. The drive end of the second motor is connected to the rotary screen body via a rotating assembly to drive the rotary screen body to rotate. An installation frame is connected to the inner wall of the rotary screen body via a snap-fit ​​assembly for assembling and disassembling the rotary screen body. The outer wall of the installation frame is rotatably connected to the inner wall of the movable frame, and the outer wall of the movable frame is rotatably connected to the inner wall of the base.

[0006] Furthermore, the repetitive assembly includes a connecting frame slidably connected to the inner wall of the base, a fixed frame rotatably connected to the inner wall of the connecting frame, and the other end of the fixed frame rotatably connected to the inner wall of the movable frame.

[0007] Furthermore, an eccentric wheel is fixedly connected to one drive end of the motor, and a connecting frame is sleeved on the outer wall of the eccentric wheel. The front end of the connecting frame is fixedly connected to the rear end of the connecting frame.

[0008] Furthermore, the rotating assembly includes a gear fixedly connected to the second drive end of the motor, a gear ring meshing with the outer wall of the gear, and connecting rings rotatably connected to both sides of the inner wall of the movable frame, with the inner wall of the gear ring fixedly connected to the outer wall of the right connecting ring.

[0009] Furthermore, the inner wall of each connecting ring is provided with multiple slots, and each slot is provided with a block. The shape of the block matches the slot, and one end of each block is fixedly connected to the outer wall of the drum screen body.

[0010] Furthermore, the buckle assembly includes a limiting groove formed on the inner wall of the drum screen body, and a limiting block is provided on the inner wall of the limiting groove. The shape of the limiting block matches the limiting groove, and the outer wall of the limiting block is slidably connected to the inner wall of the mounting frame.

[0011] Furthermore, a rotating plate is rotatably connected to the inner wall of the mounting frame, and multiple sliding grooves are provided on the inner wall of the rotating plate. The inner walls of the limiting blocks are all slidably connected to the inner walls of the sliding grooves.

[0012] Furthermore, a pull rod is fixedly connected to the right end of the rotating plate, a bolt is provided on the inner wall of the pull rod, a threaded groove is opened on the inner wall of the mounting frame, and the outer wall of the bolt is set on the inner wall of the threaded groove.

[0013] This utility model has the following beneficial effects: In this invention, the rotating drum screen can be driven to rotate repeatedly in the horizontal direction, which can break the fixed movement trajectory of waste sand, increase the frequency of particle contact and collision dispersion with the screen, avoid qualified particles being trapped, improve screening efficiency, reduce screen hole blockage, reduce downtime maintenance frequency, and enhance adaptability to different types of waste sand, thus breaking through the limitations of traditional equipment.

[0014] In this invention, the limiting position of the drum screen body can be released by rotating the pull rod. No complicated tools or cumbersome procedures are required. The operation is convenient and efficient, and the position or state of the screen body can be quickly adjusted. It is convenient to clean the screen hole blockage and repair parts, reducing downtime maintenance time. Attached Figure Description

[0015] Figure 1 This is a perspective view of a drum screen for waste sand treatment proposed in this utility model; Figure 2 This is a cross-sectional view of the base of a drum screen for waste sand treatment proposed in this utility model; Figure 3This is a front sectional view of the mounting frame of a rotary drum screen for waste sand treatment proposed in this utility model; Figure 4 This is a right-side sectional view of the mounting frame of a rotary drum screen for waste sand treatment proposed in this utility model. Figure 5 This is a top side sectional view of the mounting frame of a drum screen for waste sand treatment proposed in this utility model; Figure 6 This is a cross-sectional view of the drum screen body for waste sand treatment proposed in this utility model.

[0016] Legend: 1. Base; 2. Motor 1; 3. Eccentric wheel; 4. Connecting frame; 5. Connecting bracket; 6. Fixed bracket; 7. Movable bracket; 8. Motor 2; 9. Gear; 10. Gear ring; 11. Connecting ring; 12. Slot; 13. Rotary drum screen body; 14. Locking block; 15. Mounting frame; 16. Tie rod; 17. Rotating plate; 18. Slide groove; 19. Limiting block; 20. Limiting groove. Detailed Implementation

[0017] 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.

[0018] Reference Figures 1-3 As shown, one embodiment of this utility model provides a rotary screen for waste sand treatment, comprising a base 1, a motor 2 fixedly connected to the rear end of the base 1, a motor 8 fixedly connected to the inner wall of a movable frame 7, a connecting frame 5 slidably connected to the inner wall of the base 1, a fixed frame 6 rotatably connected to the inner wall of the connecting frame 5, and the other end of each fixed frame 6 rotatably connected to the inner wall of the movable frame 7. An eccentric wheel 3 is fixedly connected to the drive end of the motor 2, and a connecting frame 4 is sleeved on the outer wall of the eccentric wheel 3. The front end of the connecting frame 4 is fixedly connected to the rear end of the connecting frame 5 for driving the motor. The drum screen body 13 rotates horizontally. The drive end of the motor 8 is fixedly connected to a gear 9. A gear ring 10 is meshed with the outer wall of the gear 9. Connecting rings 11 are rotatably connected to both sides of the inner wall of the movable frame 7. The inner wall of the gear ring 10 is fixedly connected to the outer wall of the right connecting ring 11. Multiple slots 12 are opened on the inner wall of the connecting ring 11. Each slot 12 has a locking block 14. The shape of the locking block 14 matches the slot 12. One end of the locking block 14 is fixedly connected to the outer wall of the drum screen body 13 to drive the drum screen body 13 to rotate.

[0019] Specifically, a controller is installed on the right end of the base 1. The controller is electrically connected to motor 2 and motor 8. Baffles slide on both sides of the inner wall of the drum screen body 13. The baffles are connected to the drum screen body 13 through a locking mechanism. Motor 2 can only drive the movable frame 7 to rotate 30 degrees forward and backward with the drum screen body 13. The size of the holes in the drum screen body 13 is 5mm or slightly larger. When the drum screen body 13 rotates, it can drive it to rotate repeatedly in the horizontal direction, which can break the fixed movement trajectory of waste sand, increase the frequency of particle contact and collision dispersion with the screen, avoid qualified particles being trapped, improve screening efficiency, reduce screen hole blockage, reduce downtime maintenance frequency, and enhance the adaptability to different types of waste sand, breaking through the limitations of traditional equipment.

[0020] Reference Figures 4-6 As shown, the outer wall of the mounting frame 15 is rotatably connected to the inner wall of the movable frame 7, and the outer wall of the movable frame 7 is rotatably connected to the inner wall of the base 1. The inner wall of the drum screen body 13 is provided with multiple limiting grooves 20, and each limiting groove 20 is provided with a limiting block 19. The shape of the limiting block 19 matches the limiting groove 20. The outer wall of the limiting block 19 is slidably connected to the inner wall of the mounting frame 15. The inner wall of the mounting frame 15 is rotatably connected to a rotating plate 17. The inner wall of the rotating plate 17 is provided with multiple sliding grooves 18. The inner wall of the limiting block 19 is slidably connected to the inner wall of the sliding groove 18. The right end of the rotating plate 17 is fixedly connected to a tie rod 16. The inner wall of the tie rod 16 is provided with a bolt. The inner wall of the mounting frame 15 is provided with a threaded groove. The outer wall of the bolt is located on the inner wall of the threaded groove for disassembly and assembly of the drum screen body 13.

[0021] Specifically, when installing the drum screen body 13, first insert the drum screen body 13 into the connecting ring 11 and the mounting frame 15. During the installation process, insert the four side locking blocks 14 into the locking grooves 12, align the limiting grooves 20 with the limiting blocks 19, and pull the pull rod 16 in the opposite direction to insert the four side limiting blocks 19 into the limiting grooves 20. Insert the bolts into the pull rod 16 and rotate them into the threaded grooves to complete the installation. By rotating the pull rod 16, the limiting of the drum screen body 13 can be released. No complicated tools or cumbersome procedures are required. The operation is convenient and efficient, and the position or state of the screen body can be quickly adjusted. It is convenient to clean the screen hole blockage and repair parts, reducing downtime maintenance time.

[0022] Working principle: First, open the baffle on either side of the drum screen body 13, add waste sand inside, and close the baffle after adding. Then, start motor 2 and motor 8 through the controller. Motor 8 drives gear 9 to rotate, gear 9 drives gear ring 10 to rotate, and drives the connecting ring 11 on the right side and the drum screen body 13 to rotate. At the same time, motor 2 drives eccentric wheel 3 to rotate, and drives connecting frame 4 and connecting bracket 5 on the outer wall to move left and right repeatedly. Through fixed frame 6, it repeatedly drives movable frame 7 to rotate repeatedly, thereby driving drum screen body 13 to rotate repeatedly in the horizontal direction, thus processing the waste sand inside. The screening process involves discharging qualified waste sand downwards, while unqualified waste sand can be removed through the baffle on either side. When disassembling the drum screen body 13, first rotate the bolt to remove it from the threaded groove. Then, rotate the pull rod 16 backwards to rotate the rotating plate 17, causing the limiting block 19 to slide out of the slide groove 18 and slide the limiting blocks 19 on all four sides outwards. Remove the limiting block 19 from the limiting groove 20 to release the restriction on the drum screen body 13. Then, push the drum screen body 13 outwards to remove the locking block 14 from the locking groove 12 and remove the drum screen body 13 to complete the disassembly.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary screen for waste sand treatment, characterized in that, The device includes a base (1), a motor (2) fixedly connected to the rear end of the base (1), a movable frame (7) connected to the drive end of the motor (2) via a reciprocating assembly, for driving the drum screen body (13) to rotate horizontally, a motor (8) fixedly connected to the inner wall of the movable frame (7), a drum screen body (13) connected to the drive end of the motor (8) via a rotating assembly, for driving the drum screen body (13) to rotate, an installation frame (15) connected to the inner wall of the drum screen body (13) via a snap-fit ​​assembly, for disassembling and assembling the drum screen body (13), an outer wall of the installation frame (15) rotatably connected to the inner wall of the movable frame (7), and an outer wall of the movable frame (7) rotatably connected to the inner wall of the base (1).

2. A rotary screen for waste sand treatment according to claim 1, characterized in that: The repetitive assembly includes a connecting frame (5) that is slidably connected to the inner wall of the base (1), and a fixed frame (6) that is rotatably connected to the inner wall of the connecting frame (5). The other end of the fixed frame (6) is rotatably connected to the inner wall of the movable frame (7).

3. A rotary screen for waste sand treatment according to claim 2, characterized in that: The motor (2) is fixedly connected to an eccentric wheel (3), and a connecting frame (4) is sleeved on the outer wall of the eccentric wheel (3). The front end of the connecting frame (4) is fixedly connected to the rear end of the connecting frame (5).

4. A rotary screen for waste sand treatment according to claim 1, characterized in that: The rotating assembly includes a gear (9) fixedly connected to the drive end of the motor (8), and a gear ring (10) meshing with the outer wall of the gear (9). Connecting rings (11) are rotatably connected to both sides of the inner wall of the movable frame (7), and the inner wall of the gear ring (10) is fixedly connected to the outer wall of the right connecting ring (11).

5. A rotary screen for waste sand treatment according to claim 4, characterized in that: The inner wall of the connecting ring (11) is provided with multiple slots (12), and the inner wall of each slot (12) is provided with a block (14). The shape of the block (14) matches the slot (12), and the inner end of each block (14) is fixedly connected to the outer wall of the drum screen body (13).

6. A drum screen for waste sand treatment according to claim 1, characterized in that: The buckle assembly includes a limiting groove (20) formed on the inner wall of the drum screen body (13). The inner wall of the limiting groove (20) is provided with a limiting block (19). The shape of the limiting block (19) matches the limiting groove (20). The outer wall of the limiting block (19) is slidably connected to the inner wall of the mounting frame (15).

7. A rotary screen for waste sand treatment according to claim 6, characterized in that: The inner wall of the mounting frame (15) is rotatably connected to a rotating plate (17), and the inner wall of the rotating plate (17) is provided with multiple sliding grooves (18). The inner wall of the limiting block (19) is slidably connected to the inner wall of the sliding groove (18).

8. A rotary screen for waste sand treatment according to claim 7, characterized in that: A pull rod (16) is fixedly connected to the right end of the rotating plate (17). A bolt is provided on the inner wall of the pull rod (16). A threaded groove is provided on the inner wall of the mounting frame (15). The outer wall of the bolt is provided on the inner wall of the threaded groove.

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