Waste screening device

Abstract

The utility model relates to the field of waste screening, and discloses a waste screening device which comprises a bottom frame, bases are arranged at the two ends of the top face of the bottom frame, grooves are formed in the top faces of the bases, circular rings are slidably connected to the grooves, a screening drum is arranged between the two circular rings, supports are arranged on the two sides of each base, rolling wheels are arranged in the supports, and the rolling wheels are connected with the circular rings. A bottom box is embedded in the bottom frame; powder and small particles in waste materials to be screened directly fall onto the screen from the screen drum, the waste materials and impurities larger than the diameter of meshes of the screen drum are discharged from the lowest position of the tail of the screen drum through the discharging plate, preliminary screening of the waste materials is achieved, the waste materials and the small particles on the screen can be screened again, and the screening efficiency is improved. Waste with the diameter smaller than that of meshes of the screen falls to the bottom of the bottom box and is discharged, waste with the diameter larger than that of the meshes of the screen is discharged from the lowest position of the tail of the screen, secondary layered screening of the waste is achieved, the application degree of the device is high, and the waste screening efficiency is greatly improved.

Description

Technical Field

[0001] The present application relates to the field of waste screening, and in particular to a waste screening device. Background Art

[0002] Construction waste refers to the general term for muck, waste concrete, waste stone, waste bricks and stones, fly ash, gangue crushed stones and other wastes generated in the production activities of the construction industry such as demolition, construction, decoration, and repair. In the industry of in-depth development and recycling of construction waste, construction waste can be made into building aggregates, sand materials, aerated bricks, and plates, etc.

[0003] Most of the existing waste recycling and screening devices can only achieve unified screening and recycling of granular waste, and cannot achieve recycling and screening of waste with different particle sizes. Subsequent re-screening is required, and the operation is cumbersome. Moreover, the screening rate of the existing waste recycling and screening devices is slow, resulting in a slow waste recycling efficiency. Utility Model Content

[0004] In order to solve the problems that only unified screening and recycling of granular waste can be achieved, recycling and screening of waste with different particle sizes cannot be achieved, subsequent re-screening is required, the operation is cumbersome, and the screening rate is slow, the present application provides a waste screening device.

[0005] A waste screening device provided by the present application adopts the following technical solutions:

[0006] A waste screening device includes a chassis. At both ends of the top surface of the chassis, there are bases. A groove is opened on the top surface of the base. A ring is slidably connected to the groove. A sieve cylinder is provided between the two rings. At both sides of each base, there are brackets. A roller is provided inside the bracket. The roller is slidably connected to the ring. A bottom box is embedded inside the chassis. A sieve mesh is provided inside the bottom box.

[0007] Preferably, at the four corners of the bottom surface of the sieve mesh, there are first connecting plates. A spring is provided at the bottom surface of the first connecting plate. A second connecting plate is provided at the bottom surface of the spring. The second connecting plate is connected to the bottom box. A rectangular plate is provided at the center of the bottom surface of the sieve mesh. A vibration motor is provided at the bottom surface of the rectangular plate.

[0008] Preferably, a discharge port is provided through a side wall of the bottom box. The discharge port is connected to a discharge chute. The discharge chute corresponds to the inclined lower end of the sieve mesh.

[0009] Preferably, at both ends of the sieve cylinder, there are a discharge port and a feed port. The discharge port is connected to a discharge plate. A connecting rod is passed through between two adjacent rollers on the left and right. A second pulley is sleeved at one end of the connecting rod close to the feed port.

[0010] Preferably, a motor is provided on an outer wall of one side of the chassis. A first pulley is sleeved on an output end of the motor. The first pulley and two second pulleys are connected by belt drive.

[0011] In summary, the present application includes the following beneficial technical effects:

[0012] 1. The output end of the motor drives the first pulley to rotate. The rotation of the first pulley drives the two second pulleys to rotate through the belt. The rotation of the two second pulleys drives the two connecting rods to rotate. The rotation of the two connecting rods respectively drives the two rollers thereon to rotate. The rotation of the rollers drives the ring and the sieve cylinder to rotate. The waste enters through the feed port. The powder and small particles in the waste to be screened directly fall from the sieve cylinder onto the sieve mesh. The waste and sundries larger than the diameter of the sieve cylinder mesh holes are discharged from the lowest position at the tail of the sieve cylinder by the discharge plate, realizing the preliminary screening of the waste.

[0013] 2. The waste and small particles that fall from the sieve cylinder onto the sieve mesh, through the vibration motor and in cooperation with the springs, enable the sieve mesh to vibrate up and down, so as to screen the waste and small particles on the sieve mesh again. The waste smaller than the diameter of the sieve mesh holes falls to the bottom of the bottom box and is discharged. The waste larger than the diameter of the sieve mesh holes is discharged from the lowest position at the tail of the sieve mesh by the discharge chute, realizing the secondary stratified screening of the waste, making the equipment highly applicable and greatly improving the waste screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the main structural view of the application embodiment;

[0015] Figure 2 is the structural schematic diagram of the base of the application embodiment;

[0016] Figure 3 is the side structural view of the application embodiment;

[0017] Figure 4 is the internal structural schematic diagram of the bottom box of the application embodiment.

[0018] Description of the reference numerals: 1, chassis; 2, bottom box; 3, bracket; 4, motor; 5, first pulley; 6, second pulley; 7, connecting rod; 8, feed port; 9, discharge port; 10, discharge plate; 11, roller; 12, sieve cylinder; 13, base; 14, ring; 15, groove; 16, sieve mesh; 17, discharge chute; 18, discharge opening; 19, rectangular plate; 20, first connecting plate; 21, spring; 22, second connecting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further describes the present application in detail Figures 1-4 with reference to the attached drawings.

[0020] An embodiment of the present application discloses a waste screening device. Refer to Figures 1-2 , which includes a chassis 1. At both ends of the top surface of the chassis 1, bases 13 are fixedly provided. A groove 15 is formed on the top surface of the base 13. A ring 14 is slidably connected to the groove 15. A sieve cylinder 12 is fixedly provided between the two rings 14. Discharge ports 9 and feed ports 8 are provided at both ends of the sieve cylinder 12. The discharge port 9 is fixedly connected to a discharge plate 10. Brackets 3 are provided on both sides of each base 13. The brackets 3 are fixedly connected to the chassis 1. Rollers 11 are movably provided inside the brackets 3. The rollers 11 are slidably connected to the ring 14. A connecting rod 7 is fixedly penetrated between two adjacent rollers 11 on the left and right. The connecting rod 7 is rotatably connected to the bracket 3. A second pulley 6 is fixedly sleeved at one end of the connecting rod 7 close to the feed port 8. A motor 4 is detachably provided on the outer wall of one side of the chassis 1 by screws. A first pulley 5 is fixedly sleeved at the output end of the motor 4. The first pulley 5 and the two second pulleys 6 are connected by a belt drive. The output end of the motor 4 drives the first pulley 5 to rotate. The rotation of the first pulley 5 drives the two second pulleys 6 to rotate through the belt. The rotation of the two second pulleys 6 drives the two connecting rods 7 to rotate. The rotation of the two connecting rods 7 respectively drives the two rollers 11 thereon to rotate. The rotation of the rollers 11 drives the ring 14 and the sieve cylinder 12 to rotate. The waste enters through the feed port 8. Since the leg heights at both ends of the chassis 1 are different, the sieve cylinder 12 has a certain slope. The powder and small particles in the waste to be screened directly fall from the sieve cylinder 12 onto the sieve mesh 16. The waste and sundries larger than the mesh diameter of the sieve cylinder 12 are discharged from the lowest position at the tail of the sieve cylinder 12 by the discharge plate 10, realizing the preliminary screening of the waste.

[0021] Refer to Figures 3-4, a bottom box 2 is fixedly embedded inside the chassis 1. A screen 16 is movably arranged inside the bottom box 2. The mesh diameter of the screen 16 is smaller than that of the screen cylinder 12. Four corners of the bottom surface of the screen 16 are fixedly provided with first connecting plates 20. Springs 21 are fixedly provided on the bottom surfaces of the first connecting plates 20. Second connecting plates 22 are fixedly provided on the bottom surfaces of the springs 21. The second connecting plates 22 are fixedly connected to the bottom box 2. A rectangular plate 19 is fixedly provided at the center of the bottom surface of the screen 16. A vibration motor is provided on the bottom surface of the rectangular plate 19. A discharge port 18 is provided through a side wall of the bottom box 2. The discharge port 18 is fixedly connected to a discharge chute 17. The discharge chute 17 corresponds to the inclined lower end of the screen 16. The waste materials and small particles that are screened onto the screen 16 through the screen cylinder 12, through the vibration motor and in cooperation with the springs 21, enable the screen 16 to vibrate up and down, so as to screen the waste materials and small particles on the screen 16 again. The waste materials smaller than the mesh diameter of the screen 16 fall to the bottom of the bottom box 2 and are discharged. The waste materials larger than the mesh diameter of the screen 16 are discharged from the lowest position at the tail of the screen 16 through the discharge chute 17, realizing the secondary layered screening of the waste materials, making the equipment highly applicable and greatly improving the waste material screening efficiency.

[0022] The implementation principle of a waste material screening device according to an embodiment of the present application is as follows: During use, the output end of the motor 4 drives the first pulley 5 to rotate. The rotation of the first pulley 5 drives two second pulleys 6 to rotate through a belt. The rotation of the two second pulleys 6 drives two connecting rods 7 to rotate. The rotation of the two connecting rods 7 respectively drives two rollers 11 thereon to rotate. The rotation of the rollers 11 drives the ring 14 and the screen cylinder 12 to rotate. The waste materials enter through the feed port 8. The powder materials and small particles in the waste materials to be screened directly fall from the screen cylinder 12 onto the screen 16. The waste materials and sundries larger than the mesh diameter of the screen cylinder 12 are discharged from the lowest position at the tail of the screen cylinder 12 through the discharge plate 10. Through the vibration motor and in cooperation with the springs 21, the screen 16 can vibrate up and down, so as to screen the waste materials and small particles on the screen 16 again. The waste materials smaller than the mesh diameter of the screen 16 fall to the bottom of the bottom box 2 and are discharged. The waste materials larger than the mesh diameter of the screen 16 are discharged from the lowest position at the tail of the screen 16 through the discharge chute 17, realizing the secondary layered screening of the waste materials.

[0023] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0024] Secondly: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0025] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0026] The above are all the preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, any equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A waste screening device, comprising a chassis (1), characterized in that: At both ends of the top surface of the chassis (1), there are bases (13). A groove (15) is formed on the top surface of the base (13). A ring (14) is slidably connected to the groove (15). A sieve cylinder (12) is provided between the two rings (14). On both sides of each base (13), there is a bracket (3). A roller (11) is provided inside the bracket (3). The roller (11) is slidably connected to the ring (14). A bottom box (2) is embedded inside the chassis (1). A sieve mesh (16) is provided inside the bottom box (2).

2. The waste screening device according to claim 1, wherein: At the four corners of the bottom surface of the sieve mesh (16), there are first connecting plates (20). A spring (21) is provided on the bottom surface of the first connecting plate (20). A second connecting plate (22) is provided on the bottom surface of the spring (21). The second connecting plate (22) is connected to the bottom box (2). A rectangular plate (19) is provided at the center of the bottom surface of the sieve mesh (16). A vibration motor is provided on the bottom surface of the rectangular plate (19).

3. The waste screening device according to claim 1, characterized in that: A discharge port (18) is formed through one side wall of the bottom box (2). The discharge port (18) is connected to a discharge chute (17). The discharge chute (17) corresponds to the inclined lower end of the sieve mesh (16).

4. A waste screening device according to claim 1, wherein: At both ends of the sieve cylinder (12), there are a discharge port (9) and a feed port (8). The discharge port (9) is connected to a discharge plate (10). A connecting rod (7) passes through between two adjacent rollers (11) on the left and right. A second pulley (6) is sleeved on one end of the connecting rod (7) close to the feed port (8).

5. The waste screening device according to claim 4, characterized in that: A motor (4) is provided on the outer wall of one side of the chassis (1). A first pulley (5) is sleeved on the output end of the motor (4). The first pulley (5) and the two second pulleys (6) are connected by belt drive.

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