Self-cleaning rotary bar screen machine

Abstract

The utility model provides a self-cleaning rotary type bar screen machine which comprises a side plate, the lower end and the middle of the side plate are respectively and movably connected with a driven roller through bearings, the bent end of the side plate is respectively and movably connected with a cleaning roller and a driving roller through bearings, and the driving roller and the driven roller are connected through a bar screen belt. The upper surface of the side plate is fixedly connected with a main transverse plate, the upper surface of the main transverse plate is fixedly connected with a motor assembly, the motor assembly is connected with one end of a driving roller through a wheel disc and a belt, and the other end of the driving roller is connected with a cleaning roller through a wheel disc and a belt. The air exhauster communicates with an inner cavity of the air distribution box. Through the cooperation of the air exhauster, the air distribution box, the main air distribution column, the auxiliary air distribution column, the cleaning roller and the cleaning plate, the rotary bar screen machine can be provided with a self-cleaning structure in the operation process, then the probability that sundries are blocked on the surface of the bar screen belt can be effectively reduced, and the cleaning frequency of workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a self-cleaning rotary bar screen cleaner. Background Technology

[0002] A bar screen is a type of wastewater treatment machine that separates solids from liquids using a bar screen. In current water treatment processes, bar screens are mainly used to continuously and automatically intercept and remove debris of various shapes from fluids. Common bar screen treatment equipment includes high-chain bar screens, traditional wire rope traction bar screens, and rotary bar screens, etc. However, common rotary bar screens lack a good self-cleaning structure. In actual use, wastewater usually contains various debris, and after prolonged use, this debris will accumulate or clog the inner wall of the bar screen, causing it to become blocked. This affects the solid-liquid separation effect of the wastewater, thus requiring relatively frequent manual cleaning. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, a self-cleaning rotary bar screen is provided to solve the problems mentioned in the background.

[0004] To achieve the above objectives, a self-cleaning rotary bar screen cleaner is provided, comprising: a side plate, wherein the lower end and middle part of the side plate are movably connected to a driven roller via bearings, and the bent end of the side plate is movably connected to a cleaning roller and a driving roller via bearings. The driving roller and the driven roller are connected by a bar screen belt, and a main horizontal plate is fixedly connected to the upper surface of the side plate. A motor assembly is fixedly connected to the upper surface of the main horizontal plate. The motor assembly is connected to one end of the driving roller via a wheel and a belt, and the other end of the driving roller is connected to the cleaning roller via a wheel and a belt. Meanwhile, a gas distribution box is fixedly connected to the outer side of the side plate, and an air extractor is fixedly connected to the surface of the gas distribution box. The air extractor is connected to the inner cavity of the gas distribution box. A main air distribution column and a secondary air distribution column are fixedly connected to the inner side of the side plate relative to the position of the gas distribution box. The inner cavities of the main air distribution column and the secondary air distribution column are both connected to the inner cavity of the gas distribution box. A main guide plate and a secondary guide plate are fixedly connected to the upper and lower ends of the bent end of the side plate, respectively.

[0005] Preferably, there are two sets of side plates, with three sets of driven rollers and one set of driving rollers movably connected between the two sets of side plates. The grid belt forms an L-shaped structure between the side plates through the driving roller and the driven roller, and the upper surface of the grid belt bending end is a sloping structure, while the lower surface of the grid belt bending end is a planar structure.

[0006] Preferably, the main horizontal plate fixedly connected to the upper surface of the side plate bending end has a rectangular structure, and the main guide plate and the auxiliary guide plate fixedly connected to the side plate bending end both have rectangular structures, and the main guide plate and the auxiliary guide plate are both inclined. The inclined surface of the main guide plate and the inclined surface of the upper surface of the grid strip are parallel to each other, and the cross section formed by the main guide plate and the main horizontal plate together has a V-shaped structure.

[0007] Preferably, an air extraction box is fixedly connected to the end face of the bent end of the side plate. The air extraction box has a cuboid structure and a U-shaped cross-section. An air inlet is opened at the lower end of the air extraction box near the grid strip. The air inlet has a long strip structure. At the same time, a filter screen is fixedly connected to the opening of the air inlet. The air extraction box is connected to the air extraction machine through an air supply pipe.

[0008] Preferably, the main air distribution column and the secondary air distribution column fixedly connected to the bent end of the side plate are both cylindrical structures, and various jet heads are fixedly connected parallel to each other at equal intervals along the length direction on the outer side of the main air distribution column and the secondary air distribution column. At the same time, the jet head of the main air distribution column is perpendicular to the inclined surface of the upper surface of the grid strip, and the jet head of the secondary air distribution column is perpendicular to the horizontal surface of the lower surface of the grid strip.

[0009] Preferably, the air distribution box has a square structure, the cross-section of the air distribution box has a square shape, and the main air distribution column and the secondary air distribution column connected by the air distribution box are both located inside the grille strip. At the same time, the air distribution box, the main air distribution column and the secondary air distribution column are combined together to form a U-shaped structure.

[0010] Preferably, multiple sets of cleaning plates are fixedly connected around the outer side of the cleaning roller at equal intervals in the circumferential direction. Each cleaning plate consists of a main body and multiple sets of cleaning parts. The main body is a long strip structure fixedly connected to the surface of the cleaning roller. The cleaning parts are square structures, and the overall cleaning plate has an E-shaped structure. The cleaning parts of the cleaning plate are close to the surface of the grid belt.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: through the cooperation of the air extractor, air distribution box, main air distribution column, secondary air distribution column, cleaning roller and cleaning plate, the rotary bar screen cleaner can perform multiple cleanings at multiple locations on the bar screen belt through two different cleaning methods, thereby effectively enhancing the overall self-cleaning effect of the rotary bar screen cleaner, reducing the probability of bar screen blockage, ensuring normal solid-liquid separation of sewage, and also helping to reduce the frequency of manual cleaning and reduce the labor intensity of workers. Attached Figure Description

[0012] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model.

[0013] Figure 2 This is a partial side view of an embodiment of the present utility model.

[0014] Figure 3 This is a top view of an embodiment of the present utility model.

[0015] Figure 4 This is an embodiment of the present utility model. Figure 1 Enlarged diagram of point A.

[0016] In the diagram: 1. Side plate; 2. Grille belt; 3. Driven roller; 4. Motor assembly; 5. Main cross plate; 6. Main guide plate; 7. Air supply pipe; 8. Air extraction box; 9. Drive roller; 10. Main air distribution column; 11. Secondary air distribution column; 12. Secondary guide plate; 13. Cleaning roller; 14. Cleaning plate; 15. Air extraction fan; 16. Air distribution box. 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 to 4 As shown, this utility model provides a self-cleaning rotary bar screen cleaner, including: a side plate 1, the lower end and middle part of the side plate 1 are movably connected to a driven roller 3 via bearings, and the bent end of the side plate 1 is movably connected to a cleaning roller 13 and a driving roller 9 via bearings. The driving roller 9 and the driven roller 3 are connected by a bar screen belt 2, and a main horizontal plate 5 is fixedly connected to the upper surface of the side plate 1. A motor assembly 4 is fixedly connected to the upper surface of the main horizontal plate 5. The motor assembly 4 is connected to one end of the driving roller 9 via a wheel and a belt. The other end is connected to the cleaning roller 13 via a wheel and belt. At the same time, the outer side of the side plate 1 is fixedly connected to the air distribution box 16. The surface of the air distribution box 16 is fixedly connected to the air extractor 15, which is connected to the inner cavity of the air distribution box 16. The inner side of the side plate 1 is fixedly connected to the main air distribution column 10 and the secondary air distribution column 11 at positions relative to the air distribution box 16. The inner cavities of the main air distribution column 10 and the secondary air distribution column 11 are both connected to the inner cavity of the air distribution box 16. The upper and lower ends of the bent end of the side plate 1 are fixedly connected to the main guide plate 6 and the secondary guide plate 12, respectively.

[0019] In this embodiment, after the rotary bar screen cleaner is installed, the motor assembly 4 is switched on. The motor assembly 4, through the cooperation of the reducer, pulleys, and belt, enables the drive roller 9 to drive the bar screen belt 2 to rotate. The drive roller 9, through another set of pulleys and belts, drives the cleaning roller 13 to rotate synchronously. The air extractor 15 is then switched on. The air extractor 15 extracts air from above the bar screen belt 2 through the air supply pipe 7 and the air extraction box 8. The extracted air is first injected into the air distribution box 16, and then flows into the main air distribution column 10 and the secondary air distribution column 11 respectively, causing the surfaces of the main air distribution column 10 and the secondary air distribution column 11 to... The jet nozzles allow the airflow to be blown vertically and at high speed toward the corresponding position on the surface of the bar screen 2. When the surface of the bar screen 2 is carrying debris, the high-speed airflow from the main air column 10 and the secondary air column 11 can double-blow away the debris, thereby effectively reducing the probability of debris remaining on the surface of the bar screen 2. Furthermore, during the rotation of the cleaning roller 13, the cleaning plate 14 on the surface of the cleaning roller 13 can rotate in close contact with the surface of the bar screen 2. As a result, the debris that is difficult to blow away by the airflow blocking the surface of the bar screen 2 will be cleaned with the assistance of the cleaning plate 14, thereby further enhancing the self-cleaning effect of the rotary bar screen cleaner.

[0020] In a preferred embodiment, there are two sets of side plates 1, and three sets of driven rollers 3 and one set of driving rollers 9 are movably connected between the two sets of side plates 1. The grid belt 2 forms an L-shaped structure between the side plates 1 through the driving rollers 9 and the driven rollers 3. The upper surface of the bent end of the grid belt 2 is a sloping structure, while the lower surface of the bent end of the grid belt 2 is a planar structure.

[0021] In this embodiment, as Figure 1 , Figure 2 and Figure 3 The two sets of side plates 1 are distributed in a specific position, so that the grid strip 2 can form a specific structure between the side plates 1, thus helping to enhance the convenience of loading and unloading the self-cleaning structure.

[0022] In a preferred embodiment, the main horizontal plate 5 fixedly connected to the upper surface of the bent end of the side plate 1 has a rectangular structure, and the main guide plate 6 and the auxiliary guide plate 12 fixedly connected to the bent end of the side plate 1 also have rectangular structures. The main guide plate 6 and the auxiliary guide plate 12 are both inclined. The inclined surface of the main guide plate 6 is parallel to the inclined surface of the upper surface of the grid belt 2. At the same time, the cross section formed by the main guide plate 6 and the main horizontal plate 5 is V-shaped.

[0023] In this embodiment, as Figure 1 , Figure 2 and Figure 3 The main guide plate 6 and the secondary guide plate 12 are designed to allow the debris cleaned from the surface of the grid belt 2 to move smoothly along a specific direction, reducing the chance of debris splashing randomly and facilitating subsequent debris collection.

[0024] In a preferred embodiment, the end face of the bent end of the side plate 1 is fixedly connected to the air extraction box 8. The air extraction box 8 has a cuboid structure and a cross-section with a U-shape. An air inlet is opened at the lower end of the air extraction box 8 near the grille belt 2. The air inlet has a long strip structure. At the same time, a filter screen is fixedly connected to the opening of the air inlet. The air extraction box 8 is connected to the air extraction machine 15 through the air supply pipe 7.

[0025] In this embodiment, as Figure 1 , Figure 2 and Figure 3 The air extraction box 8 allows the airflow between the grille belt 2 and the main guide plate 6 to flow from top to bottom, which can guide the flow direction of the airflow ejected from the main air distribution column 10 and the movement direction of the splashed debris, making it easier to collect the cleaned debris.

[0026] In a preferred embodiment, the main air distribution column 10 and the secondary air distribution column 11, which are fixedly connected to the bent end of the side plate 1, are both cylindrical structures. Various jet heads are fixedly connected to the outer surfaces of the main air distribution column 10 and the secondary air distribution column 11 at equal intervals along the length direction. Meanwhile, the jet head of the main air distribution column 10 is perpendicular to the inclined surface of the upper surface of the grid strip 2, and the jet head of the secondary air distribution column 11 is perpendicular to the horizontal surface of the lower surface of the grid strip 2.

[0027] In this embodiment, as Figure 1 , Figure 3 and Figure 4 The jet nozzle positions of the main air distribution column 10 and the secondary air distribution column 11 are set to ensure that the jet air can impact the surface of the grille belt 2 with the maximum impact force, thereby enhancing the cleaning effect of debris on the surface of the grille belt 2.

[0028] In a preferred embodiment, the air distribution box 16 has a square structure and a cross-section of a square shape. The main air distribution column 10 and the secondary air distribution column 11 connected to the air distribution box 16 are both located inside the grille belt 2. At the same time, the air distribution box 16, the main air distribution column 10 and the secondary air distribution column 11 are combined together to form a U-shaped structure.

[0029] In this embodiment, as Figure 1 , Figure 2 and Figure 3 The air distribution box 16 allows the air extractor 15 to simultaneously inject airflow into the main air distribution column 10 and the secondary air distribution column 11, enabling the main air distribution column 10 and the secondary air distribution column 11 to clean the bar screen 2 through high-speed airflow. This simplifies the layout of the airflow duct structure of the rotary bar screen cleaner and ensures the self-cleaning effect of the rotary bar screen cleaner.

[0030] In a preferred embodiment, multiple sets of cleaning plates 14 are fixedly connected around the outer side of the cleaning roller 13 at equal intervals in the circumferential direction. The cleaning plate 14 consists of a main body and multiple sets of cleaning parts. The main body is a long strip structure fixedly connected to the surface of the cleaning roller 13. The cleaning parts are square structures, and the cleaning plate 14 as a whole is an E-shaped structure. The cleaning parts of the cleaning plate 14 are close to the surface of the grid belt 2.

[0031] In this embodiment, as Figure 1 , Figure 2 and Figure 4 The cleaning roller 13 and cleaning plate 14 enable the physical cleaning of highly adhesive debris that is difficult to be blown away by airflow from the surface of the bar screen 2. The combination of the two different cleaning methods can effectively enhance the self-cleaning effect of the rotary bar screen cleaner.

[0032] The self-cleaning rotary bar screen cleaner of this utility model, through the cooperation of the air extractor 15, air distribution box 16, main air distribution column 10, secondary air distribution column 11, cleaning roller 13 and cleaning plate 14, enables the rotary bar screen cleaner to have a cleaning structure with two different cleaning methods during operation, thereby effectively reducing the probability of debris clogging the surface of the bar screen belt 2, and reducing the frequency and difficulty of cleaning by workers.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning rotary screen cleaner comprising: The utility model provides a kind of side plate (1), it is characterized by: the lower end and middle part of the side plate (1) are movably connected with driven roller (3) respectively by bearing, and the bending end of side plate (1) is movably connected with cleaning roller (13) and driving roller (9) respectively by bearing, driving roller (9) and driven roller (3) are connected by grid belt (2) between, and the upper surface of side plate (1) is fixedly connected with main horizontal plate (5), the upper surface of main horizontal plate (5) is fixedly connected with motor assembly (4), motor assembly (4) is connected with one end of driving roller (9) by wheel disc and belt, the other end of driving roller (9) is connected with cleaning roller (13) by wheel disc and belt, while the outer side of side plate (1) is fixedly connected with gas distribution box (16), the surface of gas distribution box (16) is fixedly connected with air extractor (15), air extractor (15) is communicated with the inner chamber of gas distribution box (16), and the inner side of side plate (1) is fixedly connected with main gas distribution column (10) and auxiliary gas distribution column (11) respectively at the position opposite to gas distribution box (16), the inner chamber of main gas distribution column (10) and auxiliary gas distribution column (11) are communicated with the inner chamber of gas distribution box (16), and the upper end and lower end of the bending end of side plate (1) are fixedly connected with main guide plate (6) and auxiliary guide plate (12) respectively.

2. A self-cleaning rotary screen rake according to claim 1, wherein, The side plate (1) has two groups, and the two groups of side plates (1) are movably connected with three groups of driven rollers (3) and one group of driving rollers (9), and the grid belt (2) forms an L-shaped structure between the side plates (1) through the driving rollers (9) and the driven rollers (3), and the upper surface of the bending end of the grid belt (2) is inclined, and the lower surface of the bending end of the grid belt (2) is flat.

3. A self-cleaning rotary screen rake according to claim 1, wherein, The main horizontal plate (5) fixedly connected with the upper surface of the bending end of the side plate (1) is rectangular, and the main guide plate (6) and the auxiliary guide plate (12) fixedly connected with the bending end of the side plate (1) are both rectangular, and the main guide plate (6) and the auxiliary guide plate (12) are both inclined, and the inclined surface of the main guide plate (6) is parallel to the inclined surface of the upper surface of the grid belt (2), and the combination of the main guide plate (6) and the main horizontal plate (5) forms a V-shaped cross section.

4. A self-cleaning rotary screen rake according to claim 1, wherein, The end surface of the bending end of the side plate (1) is fixedly connected with the air extraction box (8), the air extraction box (8) is a rectangular solid, and the cross section of the air extraction box (8) is a mouth-shaped structure, the lower end of the side of the air extraction box (8) close to the grid belt (2) is provided with an air inlet, the air inlet is a long strip-shaped structure, and the air inlet is fixedly connected with a filter screen, and the air extraction box (8) is communicated with the air extractor (15) through the air conveying pipe (7).

5. A self-cleaning rotary screen rake according to claim 1, wherein, The main gas distribution column (10) and the auxiliary gas distribution column (11) fixedly connected with the bending end of the side plate (1) are both cylindrical, and the outer side of the main gas distribution column (10) and the auxiliary gas distribution column (11) is fixedly connected with a plurality of air jet heads along the length direction at equal intervals, and the air jet head of the main gas distribution column (10) is perpendicular to the inclined surface of the upper surface of the grid belt (2), and the air jet head of the auxiliary gas distribution column (11) is perpendicular to the horizontal surface of the lower surface of the grid belt (2).

6. A self-cleaning rotary screen rake according to claim 1, wherein, The gas distribution box (16) is in a square structure, the cross section of the gas distribution box (16) is in a mouth-shaped structure, and the main gas distribution column (10) and the auxiliary gas distribution column (11) communicated by the gas distribution box (16) are both located inside the grating belt (2), and the gas distribution box (16), the main gas distribution column (10) and the auxiliary gas distribution column (11) are combined to form a H-shaped structure.

7. A self-cleaning rotary screen rake according to claim 1, wherein, The outer side of the cleaning roller (13) is circumferentially surrounded by a plurality of groups of cleaning plates (14) fixedly connected at equal intervals, and the cleaning plate (14) is composed of a main body part and a plurality of cleaning parts, the main body part is in a strip-shaped structure and is fixedly connected to the surface of the cleaning roller (13), the cleaning part is in a square structure, and the cleaning plate (14) is in an E-shaped structure as a whole, and the cleaning part of the cleaning plate (14) is close to the surface of the grating belt (2).

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