A sewage treatment grille machine

Abstract

The utility model is a new type of grid machine for sewage treatment and belongs to the technical field of grid machines, which comprises a rack, a shielding table arranged at one end of the rack, a horizontal part and an inclined part constituting the rack, a connection between the end of the horizontal part of the rack away from the shielding table and the top end of the inclined part, and an included angle of 135 degrees between the horizontal part and the inclined part of the shielding table. The utility model solves the problem that the interaction between the rubber brush strip and the rake teeth removes the garbage on the rake teeth, but the long strip-shaped rubber brush strip can only pass through the gap between the rake teeth, the applied force is parallel to the extension direction of the rake teeth, and the problem of residual garbage in the rake teeth is easily caused. In the utility model, the use of the scraping roller, the connecting rod and the scraping frame not only can exert the force in the gap between the fishing rakes, but also can shrink and close the two sides of the scraping frame during the process of passing through the gap of the fishing rake, the two sides of the scraping frame shrink and close during the process of passing through the gap of the fishing rake, and the scraping frame rubs against the outside of the fishing rake.

Description

Technical Field

[0001] This invention belongs to the field of bar screen technology, specifically relating to a novel bar screen for sewage treatment. Background Technology

[0002] A bar screen is a solid-liquid separation device that can continuously remove impurities from fluids. It is an indispensable special equipment in the production processes of industries such as urban sewage treatment, waterworks, power plant inlets, textiles, food processing, papermaking, and leather. It is a widely used solid-liquid screening device in China.

[0003] The existing patent, CN202122644239.0, entitled "A Novel Bar Screen for Sewage Treatment," features the following characteristics: "By fixing the movable adjustment device inside the trough, the T-shaped block can be moved laterally by rotating the turntable, allowing the brush connected to the T-shaped block to move repeatedly left and right to clean the attached garbage on the rake teeth, while also cleaning the rake teeth. The brush is connected to the box by a telescopic rod, which can improve the stability of the brush movement and prevent it from falling off. The T-shaped block is sleeved and fixed to the box by two sliders, which can limit the T-shaped block to move only laterally and prevent the turntable from driving the T-shaped block to move longitudinally. It has strong stability and is easy to operate. The self-locking wheel makes it easy to move." However, it also has some shortcomings. For example, it uses the interaction between the rubber brush strip and the rake teeth to remove the garbage on the rake teeth. However, the rubber brush strip is long and can only pass through the gaps between the rake teeth, and the applied force is parallel to the extension direction of the rake teeth, which can easily lead to garbage residue on the rake teeth. Therefore, a novel bar screen for sewage treatment is proposed. Summary of the Invention

[0004] This invention provides a novel bar screen for sewage treatment, which aims to solve the problem of removing garbage from the rake teeth by the interaction between rubber brush strips and rake teeth. However, since the rubber brush strips are long and can only pass through the gaps between the rake teeth, and the applied force is parallel to the extension direction of the rake teeth, garbage residue on the rake teeth is easily caused.

[0005] This invention provides a novel bar screen for sewage treatment, comprising a frame, a shielding platform at one end of the frame, the frame being composed of a horizontal portion and an inclined portion, the end of the horizontal portion away from the shielding platform being connected to the top of the inclined portion, the included angle between the horizontal portion and the inclined portion being 135 degrees, an operating channel being provided on the inner side of the frame and the shielding platform, and a cleaning mechanism being installed on the inner side of the operating channel;

[0006] The cleaning mechanism includes a belt, a large belt roller, water leakage holes, and a fishing rake. Large belt rollers are installed at the bottom inside the running track and inside the shielding platform. The large belt roller is rotatably connected to the inside of the running track. A belt is installed inside the running track, and the belt wraps around the outside of the large belt roller. A number of fishing rakes are evenly and fixedly connected to the outside of the large belt roller.

[0007] Further, a number of water leakage holes are evenly formed in the belt, and the fishing rake is in a shape of "丿".

[0008] By adopting the above scheme, the bent part of the fishing rake adopts a smooth transition, which is conducive to the separation of garbage from the fishing rake.

[0009] Further, a discharge chute is formed inside the shielding platform, and the discharge chute is connected to the running track.

[0010] By adopting the above scheme, the discharge chute is used to discharge the garbage separated by the cleaning mechanism.

[0011] Further, a scraping roller is rotatably connected inside the discharge chute, and a number of removing mechanisms are evenly arranged on the outside of the scraping roller;

[0012] The removing mechanism includes a connecting rod, a scraping frame, a scraping ball, and an airbag. The lengths of adjacent connecting rods are different. One end of the connecting rod is fixedly connected to the outside of the scraping roller, and a scraping frame is arranged at the end of the connecting rod far from the scraping roller. The scraping frame is in a shape of "V", and the scraping frame and the connecting rod form a shape of "Y". A scraping ball is arranged at the end of the scraping frame far from the connecting rod. The scraping ball is spherical, and the material of the scraping ball is silica gel. An airbag is arranged in the middle section of the scraping frame. The material of the scraping frame is rubber. The scraping frame is inserted into the gap between the fishing rakes, and the scraping ball acts on the outside of the fishing rake.

[0013] By adopting the above scheme, the scraping roller drives the removing mechanism to pass through the gap between the fishing rakes, so that the garbage on the fishing rakes is scraped off.

[0014] Further, a number of grid plates are arranged on one side inside the discharge chute. The grid plates are equally spaced, and the grid plates are movably connected to the removing mechanism.

[0015] By adopting the above scheme, the gap of the grid plate is small. When the connecting rod drives the scraping frame to pass through the gap between the grid plates, the garbage that may be carried on the connecting rod will be screened out.

[0016] Furthermore, a gear groove is provided on one side of the frame, and two spur gears, namely 1 and 2, are rotatably connected to the inside of the gear groove. The spur gears 1 and 2 mesh with each other. One end of the spur gear 1 is fixedly connected to the scraper roller, and the spur gear 2 is fixedly connected to the large belt roller. The end of the spur gear 2 away from the large belt roller is connected to a drive motor. The gear ratio between the spur gear 2 and the spur gear 1 is 3:1.

[0017] By adopting the above scheme, the speed ratio of spur gear two to spur gear one is 3:1, which allows the scraper roller to obtain a higher speed, thereby causing multiple connecting rods on the scraper roller to collide and rub against the same fishing rake more quickly, thus removing the garbage on the fishing rake more thoroughly.

[0018] Furthermore, the bottom end of the shielding platform is provided with a support frame and a discharge hopper, and the inner side of the discharge hopper is connected to the unloading chute.

[0019] By adopting the above scheme, the discharge hopper is used to receive and discharge objects falling from the unloading chute.

[0020] Compared with the prior art, the above-mentioned technical solution of the present invention has the following beneficial technical effects:

[0021] 1. In this invention, by using the scraper roller, connecting rod and scraper frame, not only can force be applied to the gap between the fishing rakes, but the scraper frame also contracts and moves closer together on both sides as it passes through the gap of the fishing rake. The scraper frame rubs against the outside of the fishing rake, and the direction of movement of the scraper ball is intersected with the extension direction of the connecting rod, thereby scraping away the garbage adhering to the outer surface of the fishing rake.

[0022] After the scraping frame, carrying the scraping ball, passes through the gap of the fishing rake, the scraping frame will expand outward under the action of the airbag and its own elasticity. The scraping frame rubs against the outside of the fishing rake, and the movement direction of the scraping frame and the scraping ball intersects with the extension direction of the connecting rod, so as to scrape off the garbage adhering to the outer surface of the fishing rake again. The bent part of the fishing rake adopts a smooth transition, which is conducive to the peeling of garbage from the fishing rake.

[0023] 2. In this invention, the rotational speed ratio of spur gear two to spur gear one is 3:1, which allows the scraper roller to obtain a higher rotational speed, thereby causing multiple connecting rods on the scraper roller to collide and rub against the same fishing rake more quickly, thus more thoroughly removing the garbage on the fishing rake. The gap of the grate plate is small, which can remove the garbage that may be carried on the connecting rod.

[0024] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0026] Figure 1 This is a front view of the present invention.

[0027] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0028] Figure 3 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 4 For the present invention Figure 2 A magnified schematic diagram of part A in the middle section;

[0030] Figure 5 This is a schematic diagram of the structure of the fishing rake (8) of the present invention.

[0031] Attached reference numerals: Frame—1, Running track—2, Belt—3, Large belt roller—4, Drain hole—5, Baffle platform—6, Drive motor—7, Fishing rake—8, Discharge chute—9, Grate plate—10, Spur gear one—11, Gear groove—12, Spur gear two—14, Scraper roller—15, Connecting rod—16, Discharge hopper—17, Scraper frame—19, Scraper ball—20, Airbag—21, Support frame—22. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] like Figure 1-5 As shown, the present invention proposes a novel bar screen for sewage treatment, including a frame 1, a shielding platform 6 at one end of the frame 1, the frame 1 being composed of a horizontal part and an inclined part, the end of the horizontal part of the frame 1 away from the shielding platform 6 being connected to the top of the inclined part, the included angle between the horizontal part and the inclined part of the frame 1 being 135 degrees, an operating channel 2 being provided on the inner side of the frame 1 and the shielding platform 6, and a cleaning mechanism being installed on the inner side of the operating channel 2;

[0034] The cleaning mechanism includes a belt 3, a large belt roller 4, a water leakage hole 5, and a fishing rake 8. The large belt roller 4 is installed at the bottom inside the running track 2 and inside the shielding platform 6. The large belt roller 4 is rotatably connected to the inside of the running track 2. The belt 3 is installed inside the running track 2, and the belt 3 wraps around the outside of the large belt roller 4. A number of fishing rakes 8 are evenly and fixedly connected to the outside of the large belt roller 4.

[0035] A number of water leakage holes 5 are evenly formed in the belt 3, and the fishing rake 8 is in a shape of '丿';

[0036] The bent part of the fishing rake 8 adopts a smooth transition, which is beneficial to the peeling of the garbage from the fishing rake 8.

[0037] A discharge chute 9 is formed inside the shielding platform 6, and the discharge chute 9 is connected to the running track 2;

[0038] The discharge chute 9 is used for discharging the garbage separated by the cleaning mechanism.

[0039] A scraping roller 15 is rotatably connected to the inside of the discharge chute 9, and a number of removing mechanisms are evenly arranged on the outside of the scraping roller 15;

[0040] The removing mechanism includes a connecting rod 16, a scraping frame 19, a scraping ball 20, and an airbag 21. The lengths of adjacent connecting rods 16 are different. One end of the connecting rod 16 is fixedly connected to the outside of the scraping roller 15. The end of the connecting rod 16 far from the scraping roller 15 is provided with a scraping frame 19. The scraping frame 19 is in a 'V' shape. The scraping frame 19 and the connecting rod 16 form a 'Y' shape. A scraping ball 20 is provided at the end of the scraping frame 19 far from the connecting rod 16. The scraping ball 20 is spherical, and the material of the scraping ball 20 is silica gel. An airbag 21 is arranged in the middle section of the scraping frame 19. The material of the scraping frame 19 is rubber. The scraping frame 19 is inserted into the gap between the fishing rakes 8, and the scraping ball 20 interacts with the outside of the fishing rake 8;

[0041] The scraping roller 15 moves the removing mechanism through the gap between the fishing rakes 8, so that the garbage on the fishing rakes 8 is scraped off.

[0042] A number of material screening plates 10 are arranged on one side inside the discharge chute 9. The material screening plates 10 are equally spaced, and the material screening plates 10 are movably connected to the removing mechanism;

[0043] The gaps of the material screening plates 10 are small. When the connecting rod 16 moves the scraping frame 19 through the gaps between the material screening plates 10, the garbage that may be carried on the connecting rod 16 will be screened out.

[0044] A gear groove 12 is provided on one side of the frame 1. Two spur gears 11 and 14 are rotatably connected to the inside of the gear groove 12. The spur gears 11 and 14 mesh with each other. The spur gears 11 are fixedly connected to one end of the scraper roller 15. The spur gears 14 are fixedly connected to the large belt roller 4. The end of the spur gears 14 away from the large belt roller 4 is connected to a drive motor 7. The gear ratio between the spur gears 14 and 11 is 3:1.

[0045] The rotational speed ratio of spur gear 14 to spur gear 11 is 3:1, which allows the scraper roller 15 to achieve a higher rotational speed. This causes the multiple connecting rods 16 on the scraper roller 15 to collide and rub against the same fishing rake 8 more quickly, thereby more thoroughly removing the garbage from the fishing rake 8.

[0046] The bottom end of the shielding platform 6 is provided with a support frame 22 and a discharge hopper 17, and the inner side of the discharge hopper 17 is connected to the unloading chute 9.

[0047] The discharge hopper 17 is used to receive and discharge objects falling from the discharge chute 9.

[0048] Several small rotating rollers are rotatably connected to the inner side of the running track 2. The diameter of the small rotating rollers is smaller than that of the large belt roller 4. The small rotating rollers are movably connected to the inner side of the belt 3.

[0049] The specific implementation method is as follows: the bottom end of the inclined part of the frame 1 is placed in the sewage, the drive motor 7 drives one of the large belt rollers 4 to run, the large belt roller 4 drives the belt 3 to run, the belt 3 drives the fishing rake 8 to run, the fishing rake 8 can hook the garbage in the sewage, and carry the garbage upward into the unloading trough 9.

[0050] The drive motor 7 drives the spur gear 11 to rotate through the spur gear 2 14. The spur gear 11 drives the scraper roller 15 to rotate. The multiple connecting rods 16 on the scraper roller 15 quickly collide and rub against the same fishing rake 8, thereby more thoroughly removing the garbage on the fishing rake 8.

[0051] During the interaction between the fishing rake 8 and the connecting rod 16, the scraping frame 19 and the scraping ball 20 on the connecting rod 16 can move relative to the surface of the fishing rake 8, which can scrape off the garbage adhering to the outer surface of the fishing rake 8. The airbag 21 provides elasticity, causing the scraping frame 19 to open to both sides. If necessary, the two ends of the scraping frame 19 are brought together in the middle so that the scraping frame 19 can pass through the gap between the fishing rakes 8.

[0052] As the scraper 19 passes through the gap of the fishing rake 8, the two sides of the scraper 19 contract and come together, the scraper 19 rubs against the outside of the fishing rake 8, and the direction of movement of the scraper ball 20 intersects with the extension direction of the connecting rod 16, thereby scraping away the garbage adhering to the outer surface of the fishing rake 8.

[0053] After the scraping frame 19, carrying the scraping ball 20, passes through the gap of the fishing rake 8, the scraping frame 19 will expand outward under the action of the airbag 21 and its own elasticity. The scraping frame 19 rubs against the outside of the fishing rake 8, and the movement direction of the scraping frame 19 and the scraping ball 20 intersects with the extension direction of the connecting rod 16, thereby scraping away the garbage adhering to the outer surface of the fishing rake 8 again.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A bar screen for wastewater treatment, comprising a frame (1), characterized in that, One end of the frame (1) is provided with a shielding platform (6). The frame (1) is composed of a horizontal part and an inclined part. The end of the horizontal part of the frame (1) far from the shielding platform (6) is connected to the top end of the inclined part. The included angle between the horizontal part and the inclined part of the frame (1) is 135 degrees. A running track (2) is provided inside the frame (1) and the shielding platform (6). A cleaning mechanism is installed inside the running track (2). The cleaning mechanism includes a belt (3), a large belt roller (4), a water leakage hole (5), and a fishing rake (8). Large belt rollers (4) are installed at the bottom inside the running track (2) and inside the shielding platform (6). The large belt rollers (4) are rotatably connected to the inside of the running track (2). A belt (3) is installed inside the running track (2). The belt (3) wraps around the outside of the large belt rollers (4). A number of fishing rakes (8) are evenly and fixedly connected to the outside of the large belt rollers (4). A discharge chute (9) is provided inside the shielding platform (6). The discharge chute (9) is connected to the running track (2). A scraping roller (15) is rotatably connected inside the discharge chute (9). A number of removing mechanisms are evenly arranged on the outside of the scraping roller (15). The removing mechanism includes a connecting rod (16), a scraping frame (19), a scraping ball (20), and an airbag (21). The lengths of adjacent connecting rods (16) are different. One end of the connecting rod (16) is fixedly connected to the outside of the scraping roller (15). The end of the connecting rod (16) far from the scraping roller (15) is provided with a scraping frame (19). The scraping frame (19) is in a "V" shape. The scraping frame (19) and the connecting rod (16) form a "Y" shape. A scraping ball (20) is provided at the end of the scraping frame (19) far from the connecting rod (16). The scraping ball (20) is spherical. The material of the scraping ball (20) is silica gel. An airbag (21) is provided in the middle section of the scraping frame (19). The material of the scraping frame (19) is rubber. The scraping frame (19) penetrates through the gaps between the fishing rakes (8).

2. The bar screen for wastewater treatment according to claim 1, characterized in that: A number of water leakage holes (5) are evenly provided on the belt (3). The fishing rake (8) is in a "丿" shape.

3. A bar screen for wastewater treatment according to claim 2, characterized in that: The bent part of the fishing rake (8) adopts a smooth transition.

4. A bar screen for wastewater treatment according to claim 1, characterized in that: A number of grid plates (10) are provided on one side inside the discharge chute (9). The grid plates (10) are equally spaced. The grid plates (10) are movably connected to the removing mechanism.

5. A bar screen for wastewater treatment according to claim 4, characterized in that: A gear groove (12) is provided on one side of the frame (1). Two spur gears one (11) and spur gears two (14) are rotatably connected inside the gear groove (12). The spur gears one (11) and the spur gears two (14) are meshed with each other. One end of the spur gear one (11) is fixedly connected to the scraping roller (15). The spur gear two (14) is fixedly connected to the large belt roller (4). A driving motor (7) is connected to the end of the spur gear two (14) far from the large belt roller (4).

6. A bar screen for wastewater treatment according to claim 5, characterized in that: The tooth number ratio of the spur gear two (14) to the spur gear one (11) is 3:

1.

7. A bar screen for wastewater treatment according to any one of claims 3 to 6, characterized in that: The bottom end of the shielding platform (6) is provided with a support frame (22) and a discharge hopper (17), and the inner side of the discharge hopper (17) is connected to the unloading trough (9).

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