Small-sized screening device for solid waste treatment

Abstract

The utility model discloses a small -size screening device for solid waste treatment, including screening groove and base, the both ends outer wall of screening groove is welded with track, and one track one end is provided with the tooth, and screening groove bottom surface is provided with sieve hole, the base top is fixedly installed with roll frame, and is rotatably connected with the support roll between roll frame. Advantageous effects: the utility model has adopted the screening groove of swing screening, when screening solid waste, can put solid waste into screening groove, reciprocating motor drives driving gear reciprocating rotation, drives tooth and track reciprocating rotation, further drives screening groove reciprocating swing, shakes solid waste, and further accelerates screening process, and screening groove top opening is big, greatly facilitates the staff to put in material, does not influence the feeding in swing process, improves the convenience of use and the continuity of work, and mechanical structure is simple, and the operation noise is little, and the body is small and exquisite, convenient to use, and the cost is low.

Description

Technical Field

[0001] This utility model relates to the field of screening device technology, and more specifically, to a small screening device for solid waste treatment. Background Technology

[0002] Solid waste refers to solid and semi-solid waste materials generated by humans in production, consumption, daily life, and other activities. It mainly includes solid particles, garbage, slag, sludge, discarded products, broken utensils, defective products, animal carcasses, spoiled food, and human and animal excrement.

[0003] A search revealed application number CN202421290580.8, entitled "A Screening Device for Solid Waste Treatment." This application addresses the common need for screening solid waste during treatment and recycling. Traditional solid waste screening is mostly done manually, resulting in low efficiency, increased workload for workers, and difficulty in separating solid waste of different particle sizes. The proposed device uses a power component to drive a connecting rod to continuously swing, which in turn drives the screening box to reciprocate, thereby screening the solid waste within the box. Simultaneously, multiple screen plates are used to grade and screen the solid waste, separating it into different particle size ranges. The solid waste in the screening box is graded and screened to separate solid waste of different particle sizes. However, this application uses an inclined screen plate as the screening unit, combined with a swing mechanism for screening. Solid waste tends to slide quickly down the top surface of the inclined screen plate, resulting in incomplete and inefficient screening. To solve this problem, this application uses a valve assembly to close the outlet, which is then opened after screening. This operation method increases the trouble of opening and closing the valve assembly, increases the workload, affects the continuity of screening, and affects work efficiency. At the same time, the feed inlet size of this application is small, requiring workers to accurately feed the material, and the outlet size is limited, preventing larger solid waste from passing through. These problems also need to be solved.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a small-scale screening device for solid waste treatment, which has the advantages of compact and simple structure, convenient use and high efficiency, thereby solving the problems mentioned in the background technology.

[0006] (II) Technical Solution To achieve the advantages of compact and simple structure, ease of use and high efficiency, the specific technical solution adopted by this utility model is as follows: A small screening device for solid waste treatment includes a screening trough and a base. Tracks are welded to the outer walls at both ends of the screening trough, and one end of one track has teeth. Screen holes are formed on the bottom surface of the screening trough. A roller frame is fixedly installed on the top surface of the base, and a support roller is rotatably connected between the roller frames. The support roller rolls against the track. A reciprocating motor is fixedly mounted on the top surface of the base through a motor base, and a drive gear is connected to the output end of the reciprocating motor. The drive gear meshes with the teeth.

[0007] Furthermore, the top surface of the screening tank is integrally connected to end plates at both ends, and a rotating rod is rotatably connected between the end plates. A drive motor is fixedly installed on one side surface of the end plate, and the output end of the drive motor is fixedly connected to one end of the rotating rod. A lever is welded to the surface of the rotating rod.

[0008] Furthermore, a conveyor is mounted on the top surface of the base below the screening trough, and the conveyor is located between the roller frames.

[0009] Furthermore, the surface of the support roller is provided with an annular groove, and the track is inserted into the annular groove and rolls against the annular groove.

[0010] Furthermore, the sieve holes are densely distributed in multiple sets at equal intervals.

[0011] Furthermore, multiple sets of levers are arranged at equal intervals, and the levers are symmetrically distributed along the central axis of the rotating rod.

[0012] Furthermore, the spacing between the levers is equal to the diameter of the sieve holes, and the levers are made of smooth metal round rods.

[0013] Furthermore, the rotating rod is coaxially arranged with the screening trough, and the rotating rod is rotatably connected to the end plate through a bearing.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides a small screening device for solid waste treatment, which has the following beneficial effects: (1) This utility model adopts a sizing trough for oscillating screening. When screening solid waste, the solid waste can be put into the sizing trough. The reciprocating motor drives the drive gear to rotate back and forth, which in turn drives the teeth and track to rotate back and forth, thereby driving the sizing trough to oscillate back and forth, shaking the solid waste, thereby accelerating the screening process. The top opening of the sizing trough is large, which greatly facilitates the staff to feed the material. It does not affect the feeding during the oscillation process, improves the convenience of use and the continuity of work. The mechanical structure is simple, the operating noise is low, the size is small, the use is convenient, and the cost is low.

[0015] (2) This utility model adopts a lever. During the screening process, the drive motor drives the rotating rod to rotate, which in turn drives the lever to rotate, thus pushing the large-volume solid waste that cannot be screened by the screen holes out of the screening trough and completing the automatic cleaning. At the same time, it can clean while screening. The spacing between the levers is matched with the screen hole diameter, which avoids pushing solid waste that can pass through the screen holes out of the screening trough. This solves the problem of incomplete screening caused by solid waste sliding down too quickly when screening with traditional inclined screen plates, and improves work efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the internal structure of the small screening device for solid waste treatment proposed in this utility model; Figure 2 This is a front view of the small screening device for solid waste treatment proposed in this utility model; Figure 3 This is a side view of the small screening device for solid waste treatment proposed in this utility model; Figure 4 This is a schematic diagram of the sieving tank proposed in this utility model.

[0018] In the picture: 1. Screening trough; 2. Track; 3. Support roller; 4. Screen hole; 5. Roller frame; 6. Base; 7. Conveyor; 8. End plate; 9. Rotating rod; 10. Pulley; 11. Tooth; 12. Drive gear; 13. Reciprocating motor; 14. Motor base; 15. Drive motor; 16. Circular groove. Detailed Implementation

[0019] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0020] According to an embodiment of the present invention, a small screening device for solid waste treatment is provided.

[0021] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. Please refer to them. Figure 1 and Figure 3 A small-scale screening device for solid waste treatment according to an embodiment of this utility model includes a screening tank 1 and a base 6. The screening tank 1 is a semi-cylindrical metal structure with a finely polished inner wall to reduce the adhesion of solid waste. Tracks 2, which are annular metal strips, are welded to the outer walls at both ends. One end of one track 2 has evenly spaced teeth 11 for transmitting power. The bottom surface of the screening tank 1 is densely covered with screen holes 4, which are circular holes. The hole diameter is determined according to the particle size of the solid waste to be screened, ensuring that waste meeting the requirements can pass through smoothly.

[0022] The base 6 is a rectangular metal frame, with roller frames 5 bolted to the top surface. The roller frames 5 are L-shaped metal frames, with four sets arranged symmetrically in pairs, located on both sides of the screening tank 1. Support rollers 3 are rotatably connected to the roller frames 5 via bearings. The support rollers 3 are cylindrical metal rollers, rotatably connected to the roller frames 5 via roller shafts. Both ends of the roller shafts are connected to the roller frames 5 via bearings to ensure smooth rotation. The support rollers 3 also roll against the track 2, providing stable support for the screening tank 1.

[0023] A reciprocating motor 13 is fixedly mounted on the top surface of the base 6 via a motor mount 14. The reciprocating motor 13 is a motor that can rotate in both directions. The output end is connected to a drive gear 12 via a coupling. The drive gear 12 meshes with the teeth 11 on the track 2 to form a transmission structure.

[0024] When screening solid waste, the solid waste can be put into screening tank 1, and reciprocating motor 13 can be started. Reciprocating motor 13 drives drive gear 12 to rotate back and forth. Drive gear 12 drives track 2 and screening tank 1 to swing back and forth through meshing with teeth 11. The swinging of screening tank 1 causes the solid waste inside to shake continuously, accelerating the waste that meets the particle size requirements to fall through the screen holes 4, thus completing the screening process.

[0025] The top of the screening tank 1 is designed to be open with a large opening, which greatly facilitates the feeding of materials by the staff at any time. The feeding process does not affect the swaying of the screening tank 1, improving the convenience of use and the continuity of work. The overall mechanical structure of the device is simple, the noise generated during operation is low, the size is compact, it occupies little space, it is easy to use, and the manufacturing cost is low.

[0026] Please refer to Figure 2 and Figure 4The top surface of the screening tank 1 is integrally connected to both ends with end plates 8, which are circular metal plates. These end plates 8 provide a stable support space for the installation of the drive motor 15. A rotating rod 9 is rotatably connected between the end plates 8 via bearings, and the end plates 8 also provide support space for the installation of the rotating rod 9. The drive motor 15 is bolted to one side of the end plate 8. The drive motor 15 is a forward rotating motor, and its output end is fixedly connected to one end of the rotating rod 9 via a coupling. A lever 10, a cylindrical metal rod, is welded to the surface of the rotating rod 9.

[0027] The spacing between the levers 10 is equal to the diameter of the screen holes 4, and the levers 10 are made of smooth metal round rods to reduce adhesion to waste. During the screening process, the drive motor 15 drives the rotating rod 9 to rotate continuously, which in turn drives the levers 10 to rotate. As the levers 10 rotate, they push large solid waste that cannot pass through the screen holes 4 towards one end of the screening tank 1, eventually pushing it out of the screening tank 1 and completing the automatic cleaning.

[0028] Meanwhile, this structure allows for simultaneous screening and cleaning, preventing large-volume waste from accumulating in the screening tank 1 and affecting screening efficiency. The spacing between the levers 10 is matched with the diameter of the screen holes 4, ensuring that only large-volume waste that cannot pass through the screen holes 4 is pulled out, without affecting the passage of qualified waste through the screen holes 4. This solves the problem of incomplete screening caused by solid waste sliding down too quickly during traditional inclined screen plate screening, thus improving work efficiency.

[0029] Please refer to Figure 1 and Figure 3 A conveyor 7 is mounted on the top surface of the base 6 below the screening trough 1 via a bracket. The conveyor 7 is a belt conveyor with anti-slip texture on its surface. The conveyor 7 is positioned between four sets of roller frames 5, so it does not affect the swaying of the screening trough 1. Solid waste that meets the requirements and falls through the screen holes 4 will land on the conveyor belt of the conveyor 7, which will then transport it out from below the screening trough 1, preventing material accumulation and facilitating subsequent processing.

[0030] Please refer to Figure 1 and Figure 3 The support roller 3 has an annular groove 16 on its surface. The annular groove 16 is a circular groove. The track 2 is embedded in the annular groove 16 and rolls against the annular groove 16. The width of the annular groove 16 is slightly larger than the width of the track 2. This ensures that the track 2 rolls smoothly and provides axial limit for the track 2, preventing the screening tank 1 from moving axially during the swaying process and improving the stability of the device operation.

[0031] Please refer to Figure 1 and Figure 4Multiple sets of screen holes 4 are densely distributed at equal intervals at the bottom of the screening tank 1, which uniformly cover the bottom area of ​​the screening tank 1, improving the screening efficiency and uniformity, ensuring that solid waste can fully contact the screen holes 4, and accelerating the screening speed.

[0032] Please refer to Figure 1 and Figure 4 Multiple sets of levers 10 are arranged at equal intervals along the length of the rotating rod 9, and the levers 10 are symmetrically distributed along the central axis of the rotating rod 9 to ensure uniform force during material feeding. The length of the lever 10 is equal to the difference between the inner diameter of the screening trough 1 and the radius of the rotating rod 9, thus ensuring that the other end of the lever 10 can slide against the inner wall of the screening trough 1, ensuring that waste near the inner wall of the screening trough 1 is also moved, improving the comprehensiveness and efficiency of material feeding. At the same time, the rotation of the lever 10 also plays a role in auxiliary stirring, further reducing the accumulation of waste during the screening process and accelerating the screening process.

[0033] Please refer to Figure 1 and Figure 4 The rotating rod 9 is coaxially arranged with the screening trough 1 to ensure that the lever 10 can evenly feed the material in the screening trough 1. The rotating rod 9 is rotatably connected to the end plate 8 through the bearing. The bearing reduces the frictional resistance when the rotating rod 9 rotates, improves the stability and smoothness of the rotation of the rotating rod 9, and ensures that the feeding process is stable.

[0034] Working principle: When screening solid waste, the reciprocating motor 13, drive motor 15, and conveyor 7 are started first. The reciprocating motor 13 drives the drive gear 12 to rotate back and forth, and through meshing with the teeth 11 on the track 2, it drives the screening trough 1 to swing back and forth on the support roller 3; the drive motor 15 drives the rotating rod 9 and the lever 10 to rotate; the conveyor 7 starts to run, and the conveyor belt moves forward.

[0035] Workers continuously feed solid waste into screening tank 1. The waste shakes continuously under the swaying action of screening tank 1. Waste that meets the particle size requirements falls through the screen holes 4 and onto the conveyor belt of conveyor 7, where it is transported to the designated location.

[0036] Large-volume waste that cannot pass through the screen holes 4 gradually accumulates in the screening tank 1. The rotating lever 10 will push these large-volume wastes to one end of the screening tank 1, and finally push them out of the screening tank 1, realizing automatic cleaning and avoiding affecting subsequent screening.

[0037] The entire process can be carried out continuously, requiring only continuous feeding by staff, eliminating the need for frequent shutdowns for cleaning and improving screening efficiency. After screening is complete, all equipment is shut down, and the device is cleaned and maintained in preparation for the next use.

[0038] This small-scale screening device for solid waste treatment has a simple structure and is easy to operate. It can achieve continuous screening and automatic cleaning, improving the efficiency and convenience of solid waste screening, and is suitable for use in small sites.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 small-scale screening device for solid waste treatment, characterized in that, The sieve includes a screening tank (1) and a base (6). The screening tank (1) has rails (2) welded to the outer walls at both ends. One end of one of the rails (2) is provided with teeth (11). The bottom surface of the screening tank (1) is provided with sieve holes (4). The top surface of the base (6) is fixedly installed with roller frames (5). Support rollers (3) are rotatably connected between the roller frames (5). The support rollers (3) roll against the rails (2). The top surface of the base (6) is fixedly mounted with a reciprocating motor (13) through a motor base (14). The output end of the reciprocating motor (13) is connected to a drive gear (12). The drive gear (12) meshes with the teeth (11).

2. The small-scale screening device for solid waste treatment according to claim 1, characterized in that, The top surface of the screening tank (1) is integrally connected to end plates (8) at both ends, and a rotating rod (9) is rotatably connected between the end plates (8). A drive motor (15) is fixedly installed on one side surface of the end plate (8), and the output end of the drive motor (15) is fixedly connected to one end of the rotating rod (9). A lever (10) is welded to the surface of the rotating rod (9).

3. The small-scale screening device for solid waste treatment according to claim 1, characterized in that, The top surface of the base (6) is located below the screening trough (1) and a conveyor (7) is mounted thereon, and the conveyor (7) is located between the roller frames (5).

4. The small-scale screening device for solid waste treatment according to claim 1, characterized in that, The support roller (3) has an annular groove (16) on its surface, and the track (2) is inserted into the annular groove (16) and rolls against the annular groove (16).

5. The small-scale screening device for solid waste treatment according to claim 1, characterized in that, The sieve holes (4) are densely distributed at equal intervals in multiple groups.

6. The small-scale screening device for solid waste treatment according to claim 2, characterized in that, The levers (10) are arranged in multiple sets at equal intervals, and the levers (10) are symmetrically distributed along the central axis of the rotating rod (9).

7. The small-scale screening device for solid waste treatment according to claim 2, characterized in that, The spacing between the levers (10) is equal to the aperture of the sieve hole (4), and the levers (10) are made of smooth metal round rods.

8. The small-scale screening device for solid waste treatment according to claim 2, characterized in that, The rotating rod (9) is arranged coaxially with the screening trough (1), and the rotating rod (9) is rotatably connected to the end plate (8) through a bearing.

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