Construction waste recycling and screening device

Abstract

The application relates to the technical field of garbage treatment, in particular to a construction waste recycling and screening device, which comprises a screening cylinder, a rotating mechanism, a rotating cover mechanism, a leakage-proof cover and a cylinder. The discharging opening of the leakage-proof cover is driven by the rotating cover mechanism to rotate to above the material inlet and the material outlet of the screening cylinder, the rotating mechanism drives the screening cylinder to rotate and cooperates with the extension and contraction operation of the output ends of the two cylinders, so that the screening cylinder reciprocatingly inclines to the directions of the material outlet and the material inlet, the shaking and screening operation is realized, the materials in the screening cylinder collide and tumble with each other, the qualified construction waste is screened out and falls from the screen holes of the screening cylinder, the screening effect is better, and the problem that the current construction waste needs to be manually screened, thereby resulting in low efficiency, is solved.

Description

Technical Field

[0001] This application relates to the field of waste treatment technology, and in particular to a convenient construction waste recycling device. Background Technology

[0002] Currently, in the processing of construction waste, the waste is first fed into a crushing bin for initial crushing. The crushed material is then pre-screened via a conveyor belt or vibrating screen. At this stage, smaller particles that meet the preset particle size standards are separated and either proceed to subsequent processing or are used directly as recycled aggregate. However, after the initial crushing and screening, a considerable amount of oversized material inevitably remains. This non-compliant material cannot be directly incorporated into subsequent processes.

[0003] The current common practice is for workers to visually identify these large pieces of waste at the end of the screening equipment or beside the conveyor belt, manually sort them out, and then use handcarts, forklifts, or even manual labor to carry them back into the primary crushing bin or designated secondary crushing inlet for secondary or even multiple crushing until their size is reduced to the required level. Manual sorting is far less efficient than mechanized processing. Frequent downtime for sorting and manual back-and-forth handling significantly slow down the overall processing speed; moreover, workers need to perform high-intensity, repetitive sorting work in a high-dust, high-noise environment for extended periods, resulting in extreme physical exertion and a high risk of fatigue and occupational injuries. Utility Model Content

[0004] The main purpose of this utility model is to provide a construction waste recycling and screening device to solve the problem of low work efficiency caused by the need for manual screening of construction waste.

[0005] To achieve the above objectives, this utility model provides a construction waste recycling and screening device, including a base and a screening cylinder, wherein the screening cylinder is rotatably mounted on the base, the outer wall of the screening cylinder has multiple screen holes, and both ends of the screening cylinder have a material inlet and a material outlet, respectively, and further includes:

[0006] Two leak-proof covers are respectively rotatably disposed at the material inlet and the material outlet, and each leak-proof cover has a discharge port.

[0007] The rotating mechanism includes a first driving wheel, a first driven wheel, and a first motor. The first driving wheel is fixed to the first motor, and the first driven wheel is installed at one end of the screening cylinder. The first driving wheel and the first driven wheel mesh with each other, and the first motor is used to drive the first driving wheel to rotate.

[0008] Two capping mechanisms are provided, each of which drives one of the leak-proof caps to rotate. Each capping mechanism includes a second driving wheel, a second driven wheel, and a second motor. The second driven wheel is mounted on the outer wall of the leak-proof cap, the second driving wheel is fixed to the second motor, the second driving wheel meshes with the second driven wheel, and the second motor drives the second driving wheel to rotate.

[0009] A cylinder seat, which is hinged to the center of the bottom of the base;

[0010] Two hydraulic cylinders are provided, with their fixed ends hinged to one end of the cylinder base and their output ends hinged to both ends of the base. When the cylinders are not in operation, the extension lengths of the output ends of the two cylinders are the same.

[0011] Preferably, in the above technical solution, the two ends of the screening cylinder are respectively provided with a first bearing, the outer ring of the first bearing is fixedly connected to the base, and the inner ring of the first bearing is fixedly connected to the outer wall of the screening cylinder.

[0012] Preferably, in the above technical solution, the leak-proof cover is provided with a side sealing ring.

[0013] Preferably, in the above technical solution, the second bearings are respectively disposed at both ends of the screening cylinder, the leak-proof cover is connected to the screening cylinder through the second bearings, the inner ring of the second bearing is fixedly connected to the outer wall of the screening cylinder, and the outer ring of the second bearing is fixedly connected to the inner wall of the side sealing ring.

[0014] Preferably, in the above technical solution, the second driven wheel is installed on the outer wall of the side sealing ring.

[0015] Preferably, in the above technical solution, a first conveyor belt is provided below the sieve holes, and a second conveyor belt is provided below the material outlet.

[0016] Preferably, in the above technical solution, both the first motor and the second motor are servo motors with self-locking function.

[0017] Compared with existing technologies, this utility model has the following beneficial effects:

[0018] 1. In this utility model, during material screening, the discharge ports of the two leak-proof covers are rotated above the material inlet and outlet, ensuring that no material falls out during screening. The rotating mechanism drives the screening cylinder to rotate, and in conjunction with the extension and retraction of the output ends of the two cylinders, the screening cylinder tilts towards the material outlet and then towards the material inlet, repeating this motion to achieve a shaking screening operation. The material inside the screening cylinder collides and tumbles, and construction waste of the correct size is screened out and falls through the screen holes of the screening cylinder, resulting in better screening. Furthermore, during unloading, the discharge ports of the leak-proof covers rotate below the material outlet, and the two cylinders tilt the screening cylinder towards the material outlet for automatic unloading, solving the problem of low efficiency caused by the current need for manual screening of construction waste.

[0019] 2. In this utility model, the leak-proof covers are respectively installed at the material inlet and material outlet of the screening cylinder. Before the shaking operation, the second motor drives the second driving wheel to rotate. The second driving wheel meshes with the second driven wheel, thereby causing the discharge port of the leak-proof cover to rotate above the material inlet and material outlet. This prevents construction waste from rolling down from the material inlet and material outlet when the screening cylinder is shaken. During loading, the discharge port of the leak-proof cover rotates below the material inlet to facilitate the loading operation.

[0020] 3. In this utility model, the qualified construction waste screened out from the sieve holes falls onto the first conveyor belt and is transported away, while the unqualified construction waste poured out from the material outlet falls onto the second conveyor belt and is transported away, thereby achieving the screening effect. Attached Figure Description

[0021] Figure 1 This is a first-view schematic diagram of the construction waste recycling and screening device in the embodiment.

[0022] Figure 2 This is a second-view schematic diagram of the construction waste recycling and screening device in the embodiment.

[0023] Figure 3 This is a cross-sectional schematic diagram of the construction waste recycling and screening device in the embodiment.

[0024] Figure 4 The diagram shows the first and second bearings of the construction waste recycling and screening device in the embodiment.

[0025] Among them, 1-base, 11-screening cylinder, 111-screen hole, 112-material inlet, 113-material outlet, 114-first bearing, 115-second bearing, 116-leakage cover, 1161-side sealing ring, 1162-discharge port, 12-rotating mechanism, 120-first driving wheel, 121-first driven wheel, 122-first motor, 13-capping mechanism, 131-second driving wheel, 132-second driven wheel, 133-second motor, 2-cylinder seat, 21-cylinder, 3-first conveyor belt, 4-second conveyor belt. Detailed Implementation

[0026] 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.

[0027] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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.

[0028] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. Where the terms "first," "second," and "third" are used for descriptive purposes and to distinguish technical features, they should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features or the order of the indicated technical features.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0030] like Figures 1-4 As shown, the construction waste recycling and screening device of this embodiment includes: a base 1, a screening cylinder 11, a screen hole 111, a material inlet 112, a material outlet 113, a first bearing 114, a second bearing 115, a leak-proof cover 116, a side sealing ring 1161, a discharge port 1162, a rotating mechanism 12, a first driving wheel 120, a first driven wheel 121, a first motor 122, a capping mechanism 13, a second driving wheel 131, a second driven wheel 132, a second motor 133, a cylinder seat 2, a cylinder 21, a first conveyor belt 3, and a second conveyor belt 4.

[0031] Continue to refer to Figures 1-4 The screening cylinder 11 has a first bearing 114 installed at both ends. The outer ring of the first bearing 114 is fixedly connected to the base 1, and the inner ring of the first bearing 114 is fixedly connected to the outer wall of the screening cylinder 11. At this time, the screening cylinder 11 is rotatably installed on the base 1. The rotating mechanism 12 is used to drive the screening cylinder 11 to rotate. Specifically, the rotating mechanism 12 includes a first driving wheel 120, a first driven wheel 121, and a first motor 122. The first driving wheel 120 is fixed on the first motor 122, and the first driven wheel 121 is installed at one end of the screening cylinder 11. The first driving wheel 120 and the first driven wheel 121 mesh with each other. The fixed end of the first motor 122 is installed on the base 1. The first motor 122 drives the first driving wheel 120 to rotate, so that the first driving wheel 120 and the first driven wheel 121 can mesh with each other to drive the screening cylinder 11 to rotate, thereby realizing the rotation operation of the screening cylinder 11. The screening cylinder 11 has a material inlet 112 and a material outlet 113 at its two ends. The construction waste to be screened is put into the screening cylinder 11 through the material inlet 112. The outer wall of the screening cylinder 11 has multiple screen holes 111. During the screening operation, construction waste of the correct size will fall out of the screening cylinder 11 through the screen holes 111, thereby screening out larger pieces of construction waste.

[0032] In the existing screening cylinder 11, its material inlet 112 and material outlet 113 are usually open. During screening, construction waste inside the screening cylinder 11 inevitably falls out from the material inlet 112 and material outlet 113. Therefore, in this embodiment, rotatable leak-proof covers 116 are respectively provided at the material inlet 112 and material outlet 113. The leak-proof cover 116 is provided with a side sealing ring 1161 and has a discharge port 1162. Each leak-proof cover 116 is rotated by a capping mechanism 13. Specifically, a second bearing 115 is provided at both ends of the screening cylinder 11. The outer ring of the second bearing 115 is fixedly connected to the inner wall of the side sealing ring 1161, and the inner ring of the second bearing 115 is fixed to the outer wall of the screening cylinder 11. The second driven wheel 132 is fixedly installed on the outer wall of the side sealing ring 1161. The second motor 133 is set on the base 1. The output end of the second motor 133 is fixedly connected to the center of the second driving wheel 131. The second driving wheel 131 and the second driven wheel 132 mesh with each other. Therefore, the leak-proof cover 116 will not rotate synchronously when the screening cylinder 11 is rotating for screening. Before feeding, the second motor 133 at the material inlet 112 drives the second driving wheel 131 to rotate. At this time, the second driving wheel 131 and the second driven wheel 132 mesh with each other, so that the leak-proof cover 116 rotates, causing the discharge port 1162 to rotate to the bottom of the material inlet 112. At this time, the bottom of the material outlet 113 is closed to facilitate the feeding of construction waste. To prevent the screening cylinder 11 from being overfilled with construction waste during screening operations, which would lead to poor screening results, the screening cylinder 11 is not filled completely when it is filled with construction waste. It is best to fill it to one-third full. The leak-proof cover 116 seals the material inlet 112 and the material outlet 113 at a minimum height of two-thirds of their respective heights. Furthermore, a screening has already been performed before the shaking screening operation, so the amount of waste in the screening cylinder 11 will be less than one-third of the original amount. Therefore, when this design is applied, the construction waste in the screening cylinder 11 will not fall out from the material inlet 112 and the material outlet 113.

[0033] In this embodiment, the fixed ends of the two cylinders 21 are respectively hinged to the cylinder seat 2, and the output ends of the cylinders 21 are respectively hinged to the two ends of the base 1. The cylinder seat 2 is hinged to the center of the bottom of the base 1. When the cylinders 21 are not working, the output ends of the two cylinders 21 are in the extended state and the extension length is the same to maintain the stability of the base 1. While the screening cylinder 11 rotates to screen the material, the hydraulic cylinder 21 starts working. The hydraulic cylinder 21 located at one end of the base 1 starts and extends further beyond its original extension length. At the same time, the hydraulic cylinder 21 located at the other end of the base 1 starts and retracts beyond its original extension length. At this time, the base 1 is in a state where one end is raised and the other end is lowered. After the construction waste in the screening cylinder 11 rolls to the other end of the screening cylinder 11, the extension lengths of the output ends of the two hydraulic cylinders 21 return to the same. The hydraulic cylinder 21 located at the other end of the base 1 starts again and extends further beyond its original extension length. The output end of the hydraulic cylinder 21 located at one end of the base 1 retracts beyond its original extension length. At this time, the base 1 is in a state where one end is lowered and the other end is raised. The construction waste in the screening cylinder 11 rolls to one end of the screening cylinder 11. This shaking operation is repeated repeatedly, causing the construction waste to tumble and collide with each other inside the screening cylinder 11, resulting in a better screening effect.

[0034] In this embodiment, a first conveyor belt 3 is provided below the screen holes 111. Construction waste of the correct size from the screening cylinder 11 falls onto the first conveyor belt 3, which transports the construction waste to a designated location. After large pieces of construction waste are screened out by the screening cylinder 11, the discharge port 1162 is rotated to a position below the material outlet 113. The output end of the hydraulic cylinder 21 near the material inlet 112 extends further beyond its original extension length, while the output end of the hydraulic cylinder 21 near the material outlet 113 retracts beyond its original extension length. At this time, the position of the material inlet 112 is higher than that of the material outlet 113, and all construction waste of the incorrect size rolls down to the material outlet 113. A second conveyor belt 4 is provided below the material outlet 113. Construction waste of the incorrect size rolls down from the material outlet 113 and the discharge port 1162 onto the second conveyor belt 4, which transports the construction waste to a designated location, thus completing the screening of the construction waste.

[0035] In addition, both the first motor 122 and the second motor 133 are servo motors with self-locking function. The self-locking function of the servo motor can maintain the position of the screening cylinder 11 or the anti-leakage cover 116 when the power is off, preventing the screening cylinder 11 or the anti-leakage cover 116 from rotating accidentally due to gravity or material impact.

[0036] In summary, during material screening, each capping mechanism 13 drives the discharge ports 1162 of the two leak-proof covers 116 to rotate above the material inlet 112 and the material outlet 113. The rotating mechanism 12 drives the screening cylinder 11 to rotate, and in conjunction with the extension and retraction of the output ends of the two cylinders, the screening cylinder 11 tilts towards the material outlet 113 and then towards the material inlet 112, thus repeating this process to achieve the shaking screening operation. The materials inside the screening cylinder 11 collide and tumble with each other, and the materials of different sizes are screened. Construction waste of the correct size will be screened out and fall from the screen holes 111 of the screening cylinder 11, resulting in better screening effect. The construction waste of the correct size will fall from the screen holes 111 onto the first conveyor belt 3 and be carried away. During unloading, the discharge port 1162 of the leak-proof cover 116 will rotate to the lower part of the material outlet 113, and two cylinders will tilt the screening cylinder 11 towards the material outlet 113 for automatic unloading. Construction waste of the wrong size will roll from the material outlet 113 onto the second conveyor belt 4 and be carried away, thus completing the screening operation.

[0037] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A construction waste recycling and screening device, comprising a base and a screening cylinder, the screening cylinder being rotatably mounted on the base, the outer wall of the screening cylinder having a plurality of screen holes, and the two ends of the screening cylinder having a material inlet and a material outlet, respectively, characterized in that, Also includes: Two leak-proof covers are respectively rotatably disposed at the material inlet and the material outlet, and each leak-proof cover has a discharge port. The rotating mechanism includes a first driving wheel, a first driven wheel, and a first motor. The first driving wheel is fixed to the first motor, and the first driven wheel is installed at one end of the screening cylinder. The first driving wheel and the first driven wheel mesh with each other, and the first motor is used to drive the first driving wheel to rotate. Two capping mechanisms are provided, each of which drives one of the leak-proof caps to rotate. Each capping mechanism includes a second driving wheel, a second driven wheel, and a second motor. The second driven wheel is mounted on the outer wall of the leak-proof cap, the second driving wheel is fixed to the second motor, the second driving wheel meshes with the second driven wheel, and the second motor drives the second driving wheel to rotate. A cylinder seat, which is hinged to the center of the bottom of the base; Two hydraulic cylinders are provided, with their fixed ends hinged to one end of the cylinder base and their output ends hinged to both ends of the base. When the cylinders are not in operation, the extension lengths of the output ends of the two cylinders are the same.

2. The construction waste recycling and screening device according to claim 1, characterized in that, The screening cylinder is provided with a first bearing at each end. The outer ring of the first bearing is fixedly connected to the base, and the inner ring of the first bearing is fixedly connected to the outer wall of the screening cylinder.

3. The construction waste recycling and screening device according to claim 2, characterized in that, The leak-proof cover is equipped with a side sealing ring.

4. The construction waste recycling and screening device according to claim 3, characterized in that, The second bearings are respectively located at both ends of the screening cylinder. The leak-proof cover is connected to the screening cylinder through the second bearings. The inner ring of the second bearing is fixedly connected to the outer wall of the screening cylinder, and the outer ring of the second bearing is fixedly connected to the inner wall of the side sealing ring.

5. The construction waste recycling and screening device according to claim 3, characterized in that, The second driven wheel is mounted on the outer wall of the side sealing ring.

6. The construction waste recycling and screening device according to claim 1, characterized in that, A first conveyor belt is provided below the sieve holes, and a second conveyor belt is provided below the material outlet.

7. The construction waste recycling and screening device according to claim 1, characterized in that, Both the first motor and the second motor are servo motors with self-locking function.

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