Inward flow grating machine

Abstract

The utility model relates to sewage treatment equipment field discloses an inner inlet flow grating machine, including the box, both sides of the box are all fixedly connected with half section board, the left side wall top of box is fixedly connected with the bottom, the upper side wall of bottom is provided with motor, the output of motor is fixedly connected with the rotator, the inside fixed connection of rotator has the rotating rod, the left and right ends of rotating rod are connected in the inside of box and reach through. The utility model discloses the motor, grating plate, collection sewage pool and scraper that are set up, can solve the risk of causing equipment to face the blockage, wear and tear etc.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment equipment, and in particular to an internal inlet bar screen. Background Technology

[0002] Internal flow bar screens are widely used in municipal wastewater treatment plants, industrial wastewater treatment plants, and other locations requiring wastewater pretreatment. In municipal wastewater treatment, they are typically used as primary treatment equipment to remove large solid waste and floating debris, providing favorable influent conditions for subsequent treatment processes, protecting downstream equipment from damage by impurities, and improving the overall efficiency and stability of the wastewater treatment system. In industrial wastewater treatment, appropriate internal flow bar screens can be selected based on the specific wastewater quality and treatment requirements to pretreat solid impurities in the wastewater, contributing to subsequent advanced treatment and achieving compliant discharge.

[0003] During wastewater treatment, various solid pollutants, such as plastics, paper, branches, and stones, pass directly through the equipment without being effectively intercepted or removed. The presence of solid impurities affects the wastewater quality, leading to risks such as equipment blockage and wear, reducing the overall efficiency of the wastewater treatment system, and increasing operating costs and maintenance workload. During the operation of the bar screen, solid impurities easily adhere to the screen plates. Over time, these impurities accumulate, gradually clogging the screen gaps, reducing the water flow area, increasing water flow resistance, and consequently reducing the bar screen's interception efficiency, shortening its lifespan, and increasing maintenance costs and repair frequency. Utility Model Content

[0004] The main purpose of this utility model is to provide an internal flow bar screen that can effectively solve the problems that lead to risks such as equipment blockage and wear, reduce the operating efficiency of the entire sewage treatment system, increase operating costs and maintenance workload, reduce the bar screen's interception efficiency, shorten the equipment's service life, and increase the equipment's maintenance costs and repair frequency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an internal flow bar screen machine, comprising a housing, with half-plates fixedly connected to both the front and rear sides of the housing, a bottom plate fixedly connected to the top of the left side wall of the housing, a motor mounted on the upper side wall of the bottom plate, a rotator fixedly connected to the output end of the motor, a rotating rod fixedly connected inside the rotator, the left and right ends of the rotating rod penetrating and connected to the interior of the housing, sprockets fixedly connected to the outer sides of the left and right ends of the rotating rod, chains mounted on both the left and right sides of the interior of the housing, the top of each chain meshing with the outer side of a sprocket, first support rings fixedly connected to the outer sides of the two chains, and the outer sides of the two first support rings rotatably connected to the interior of the left and right sides of the housing.

[0006] Furthermore, a second support ring is fixedly connected to the inner sidewall of each of the two chains, and multiple grid plates are fixedly connected to the other side of each of the two second support rings. A sludge collection tank is provided inside the box, and a first fixing plate is fixedly connected to the left sidewall of the sludge collection tank. The left sidewall of the first fixing plate is fixedly connected to the inner left sidewall of the box, and the right side of the sludge collection tank is connected through the inside of the box.

[0007] Furthermore, a first support plate is fixedly connected to the right side wall of the box body, a connecting pool is fixedly connected to the top of the first support plate, the rear side wall of the connecting pool is fixedly connected to the right side wall of the sludge collection tank, a second fixing plate is fixedly connected to the rear side wall of the sludge collection tank, a recess is threadedly connected to the outer side of the rear side wall of the second fixing plate, a scraper is fixedly connected to the rear side wall of the recess, and the scraper is correspondingly arranged with multiple grid plates.

[0008] Furthermore, a feed pipe is connected through the bottom of the left side wall of the box, and a second support plate is fixedly connected to the right side wall of the box, with a pump installed on the top of the second support plate.

[0009] Furthermore, the pump's input end is fixedly connected to a water inlet pipe, the pump's output end is fixedly connected to a connecting pipe, and the top of the connecting pipe is connected to a three-way pipe.

[0010] Furthermore, the top rear part of the three-pipe is connected to a first spray pipe, which is fixedly connected to the bottom of the rear half plate, and the front side wall of the first spray pipe is connected to a first nozzle.

[0011] Furthermore, a second spray pipe is connected to the front of the top of the three-pipe assembly, and a connecting plate is fixedly connected to the top of the second spray pipe. The connecting plate is fixedly connected to the bottom of the sludge collection tank, and a second nozzle is connected to the rear side wall of the connecting plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model, through its designed motor, rotating rod, chain, grating plate, sludge collection tank, and scraper, effectively solves the problems that lead to equipment blockage, wear, reduced operating efficiency, increased operating costs, and increased maintenance workload in wastewater treatment systems. Driven by the chain, the grating plate moves upwards from the bottom of the tank within the wastewater. During this process, the grating plate intercepts solid impurities in the wastewater, separating suspended and floating solids. The intercepted impurities adhere to the grating plate, and as the grating plate continues to move to the top of the tank, it effectively reduces the risk of equipment wear and blockage, extends the equipment's service life, and ensures the smooth operation of the entire wastewater treatment process.

[0014] 2. By incorporating a pump, inlet pipe, triple-pipe system, first spray nozzle, second spray pipe, and second spray nozzle, the system effectively addresses the issues that reduce the bar screen's interception efficiency, shorten its lifespan, and increase maintenance costs and frequency. The first spray pipe, fixed to the bottom of the rear half-section, has its front spray nozzle spraying water in a spray pattern to rinse the back of the bar screen and the rear area inside the tank. A second water stream enters the second spray pipe at the top front, fixed to the bottom of the sludge collection tank via a connecting plate. The second spray nozzle on the rear side of the connecting plate sprays water onto the front of the bar screen and the top of the sludge collection tank, further rinsing away residual impurities on the bar screen surface and any dirt that may be adhering to the vicinity of the sludge collection tank. This dual-spray system ensures thorough cleaning of the bar screen, effectively reducing the load on the drive unit, making the equipment operate more smoothly, lowering energy consumption, extending the equipment's lifespan, and maintaining stable water flow capacity.

[0015] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an internal flow bar screen proposed in this utility model;

[0017] Figure 2 This is a cross-sectional view of the internal structure of the box of an internal flow bar screen proposed in this utility model;

[0018] Figure 3 This is a structural diagram of the first support ring of an internal flow bar screen proposed in this utility model;

[0019] Figure 4 This is a chain structure diagram of an internal flow bar screen machine proposed in this utility model;

[0020] Figure 5 This is a structural diagram of a grid plate for an internal flow grid machine proposed in this utility model;

[0021] Figure 6 This utility model provides a structural diagram of the sludge collection tank for an internal flow bar screen.

[0022] Figure 7 This is a schematic diagram of the connection pool of an internal flow bar screen proposed in this utility model;

[0023] Figure 8 This is a diagram of the scraper structure of an internal flow bar screen proposed in this utility model;

[0024] Figure 9 This is a rear structural diagram of an internal flow bar screen proposed in this utility model;

[0025] Figure 10 A diagram showing the structure of a three-tube internal flow bar screen proposed in this utility model;

[0026] Figure 11 This is a schematic diagram of the second nozzle of an internal flow bar screen proposed in this utility model.

[0027] Legend:

[0028] 1. Box body; 2. Half plate; 3. Base plate; 4. Motor; 5. Rotator; 6. Rotating rod; 7. Sprocket; 8. Chain; 9. First support ring; 10. Second support ring; 11. Grating plate; 12. Sludge collection tank; 13. First fixing plate; 14. First support plate; 15. Connecting tank; 16. Second fixing plate; 17. Concave block; 18. Scraper; 19. Feed pipe; 20. Second support plate; 21. Pump; 22. Water inlet pipe; 23. Connecting pipe; 24. Tri-pipe; 25. First spray pipe; 26. First nozzle; 27. Second spray pipe; 28. Connecting plate; 29. ​​Second nozzle. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0030] like Figure 1 - Figure 5 As shown: An internal flow bar screen includes a housing 1, with half-section plates 2 fixedly connected to both the front and rear sides of the housing 1. The half-section plates 2 are used to connect the front and rear sides of the housing 1 to support the internal devices and allow the treated wastewater to flow to the next area through the bottom of the half-section plates 2.

[0031] A base plate 3 is fixedly connected to the top of the left side wall of the housing 1. A motor 4 is installed on the upper side wall of the base plate 3. A rotator 5 is fixedly connected to the output end of the motor 4. By fixing the base plate 3 to the left side wall of the housing 1, the motor 4 at the top is supported from the bottom. A rotating rod 6 is fixedly connected inside the rotator 5. The left and right ends of the rotating rod 6 pass through the inside of the housing 1. Sprockets 7 are fixedly connected to the outer sides of the left and right ends of the rotating rod 6. The output end of the motor 4 drives the rotator 5 to rotate, which in turn causes the rotating rod 6 inside the rotator 5 to start rotating. The left and right ends of the rotating rod 6 pass through the housing 1 and drive the sprockets 7 fixed to the outer sides of its left and right ends to rotate.

[0032] Chains 8 are installed on both the left and right sides of the interior of the housing 1. The top of each chain 8 meshes with the outer side of a sprocket 7. The outer walls of both chains 8 are fixedly connected to first support rings 9. The outer sides of the two first support rings 9 are rotatably connected to the interior of the left and right sides of the housing 1. As the sprocket 7 rotates, the chain 8 meshing with its outer side begins to run. The top of the chain 8 cooperates with the sprocket 7 to form a circular motion on the left and right sides inside the housing 1. In addition, the first support rings 9 fixed to the outer walls of the chain 8 are rotatably connected to the interior of the left and right sides of the housing 1, which play a supporting and guiding role and ensure the stable operation of the chain 8.

[0033] like Figure 1 - Figure 9 As shown, the inner walls of the two chains 8 are fixedly connected with second support rings 10, and the other side of the two second support rings 10 is fixedly connected with multiple grid plates 11. The second support rings 10 fixed to the inner walls of the chains 8 move with the chains 8, driving the multiple grid plates 11 fixed on their other side to move cyclically.

[0034] The tank 1 contains a sludge collection tank 12. A first fixing plate 13 is fixedly connected to the left side wall of the sludge collection tank 12. The left side wall of the first fixing plate 13 is fixedly connected to the left side wall of the tank 1. The right side of the sludge collection tank 12 extends through the interior of the tank 1. A first support plate 14 is fixedly connected to the right side wall of the tank 1. A connecting tank 15 is fixedly connected to the top of the first support plate 14. The rear side wall of the connecting tank 15 is fixedly connected to the right side wall of the sludge collection tank 12. When the grid plate 11 moves above the sludge collection tank 12, some impurities fall into the sludge collection tank 12 under their own gravity. In addition, some sewage falls into the sludge collection tank 12 under gravity. The sewage then drives the impurities inside the sludge collection tank 12 to flow to the right and into the connecting tank 15.

[0035] Other examples Figure 9 As shown, the connecting pool 15 is fixed at an angle to the top of the first support plate 14, and the angled setting allows impurity particles to flow inside the connecting pool 15 and be discharged from the inside of the connecting pool 15.

[0036] A second fixing plate 16 is fixedly connected to the rear side wall of the sludge collection tank 12. A recess 17 is threadedly connected to the outer side of the rear side wall of the second fixing plate 16. A scraper 18 is fixedly connected to the rear side wall of the recess 17. The scraper 18 is correspondingly arranged with multiple grid plates 11. The second fixing plate 16 on the rear side of the sludge collection tank 12 is threadedly connected to the recess 17 to facilitate the installation of the recess 17 and the scraper 18 on the rear side wall of the sludge collection tank 12, and to facilitate disassembly and replacement.

[0037] Additionally, when the grating plate 11 passes the scraper 18, the scraper 18 scrapes off any remaining impurities on the grating plate 11, ensuring that the grating plate 11 is clean so that the next round of interception can continue. The scraped-off impurities also fall into the sludge collection tank 12.

[0038] like Figure 1 - Figure 10 As shown, a feed pipe 19 is connected through the bottom of the left side wall of the tank 1, which connects to external pipes to transport sewage into the grit chamber. A second support plate 20 is fixedly connected to the right side wall of the tank 1, and a pump 21 is mounted on top of the second support plate 20 to support the pump 21. A water inlet pipe 22 is fixedly connected to the input end of the pump 21, and a connecting pipe 23 is fixedly connected to the output end of the pump 21. A three-way pipe 24 is connected to the top of the connecting pipe 23. After the pump 21 is started, it first connects to external pipes and water tanks through the water inlet pipe 22 at the input end of the pump 21 to draw water from the outside. The drawn water is then transported to the two pipes at the top through the water inlet pipe 22 and the connecting pipe 23 at the output end of the pump 21.

[0039] like Figure 1 - Figure 11 As shown, the top rear of the triplex pipe 24 is connected to the first spray pipe 25, which is fixedly connected to the bottom of the rear half plate 2. Water flows into the first spray pipe 25 at the top rear through one of the pipes. The first spray pipe 25 is fixed to the bottom of the rear half plate 2, and the first nozzle 26 on its front side wall sprays water out in a spray pattern to rinse the back of the grating plate 11 that passes through this area.

[0040] The front sidewalls of the first spray pipe 25 are all connected to the first nozzles 26. The front top of the triplet pipe 24 is connected to the second spray pipe 27. The top of the second spray pipe 27 is fixedly connected to the connecting plate 28, which is fixedly connected to the bottom of the sludge collection tank 12. The rear sidewalls of the connecting plate 28 are all connected to the second nozzles 29. Water flows into the front top of the second spray pipe 27 through another path. The second spray pipe 27 is fixed to the bottom of the sludge collection tank 12 through the connecting plate 28. The second nozzles 29 on the rear sidewall of the connecting plate 28 spray water onto the front of the grating plate 11 and the top area of ​​the sludge collection tank 12 to further wash away residual impurities on the surface of the grating plate 11 and dirt that may be attached near the sludge collection tank 12.

[0041] It should be noted that this utility model is an internal flow bar screen machine. First, the motor 4 and the pump 21 are connected to the external power supply and control terminal to supply power and control the device.

[0042] When the internal flow bar screen is put into operation, the motor 4 on the base plate 3 starts, and the output end of the motor 4 drives the rotor 5 to rotate, and the rotating rod 6 inside the rotor 5 rotates accordingly. The left and right ends of the rotating rod 6 pass through the housing 1 and drive the sprockets 7 fixed on the outer sides of its left and right ends to rotate. When the sprockets 7 rotate, the chain 8 meshing with its outer side begins to run. The top of the chain 8 cooperates with the sprocket 7 to form a circular motion on the left and right sides inside the housing 1. The first support ring 9 fixed to the outer wall of the chain 8 is rotatably connected to the inside of the left and right sides of the housing 1, which plays a supporting and guiding role and ensures the stable operation of the chain 8; at the same time, the second support ring 10 fixed to the inner wall of the chain 8 moves with the chain 8, driving the multiple bar screens 11 fixed on its other side to move cyclically.

[0043] Driven by the chain 8, the grating plate 11 moves from bottom to top in the sewage inside the tank 1. During this process, the grating plate 11 intercepts solid impurities in the sewage, separating suspended solids and floating matter. The intercepted impurities adhere to the grating plate 11 and continue to move to the top of the tank 1.

[0044] When the grating plate 11 moves above the sludge collection tank 12, due to factors such as the change in the direction of movement, some impurities fall into the sludge collection tank 12 under their own gravity. The left side wall of the sludge collection tank 12 is fixed to the left side wall inside the box 1 by the first fixing plate 13, and the right side penetrates the box 1 and is supported by the connecting tank 15 by the first support plate 14 on the right side wall. The concave block 17 threaded to the outer side of the second fixing plate 16 on the rear side wall of the sludge collection tank 12 drives the scraper 18 to be set in a corresponding position with the grating plate 11.

[0045] When the bar screen 11 passes the scraper 18, the scraper 18 scrapes off the remaining impurities on the bar screen 11, ensuring that the bar screen 11 is clean so that the next round of interception can continue. The scraped-off impurities also fall into the sludge collection tank 12, and finally the collected impurities are discharged from the equipment through the connecting tank 15 connected to the right side of the sludge collection tank 12, completing the entire sewage filtration and impurity collection and treatment process.

[0046] Meanwhile, the pump 21 on the top of the second support plate 20 on the right side wall of the housing 1 is started. The pump 21 draws water through the inlet pipe 22. After being pressurized by the pump 21, the water flows from the connecting pipe 23 at the output end into the triple pipe 24. The triple pipe 24 divides the water. One stream flows into the first spray pipe 25 at the rear of the top. The first spray pipe 25 is fixed to the bottom of the rear half plate 2. The first nozzle 26 on its front side wall sprays water in a spray pattern to rinse the back of the grating plate 11 and the rear area inside the housing 1. The other stream flows into the second spray pipe 27 at the front of the top. The second spray pipe 27 is fixed to the bottom of the sludge collection tank 12 through the connecting plate 28. The second nozzle 29 on the rear side wall of the connecting plate 28 sprays water onto the front of the grating plate 11 and the top area of ​​the sludge collection tank 12 to further rinse away residual impurities on the surface of the grating plate 11 and dirt that may be attached to the vicinity of the sludge collection tank 12. The synergistic effect of dual-channel spraying ensures that the grating plate 11 is thoroughly cleaned, preventing impurities from accumulating and affecting the equipment's operating efficiency and interception effect.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An infeed grating machine comprising a housing (1), characterized in that: Half plates (2) are fixedly connected to both the front and rear sides of the box (1). A bottom plate (3) is fixedly connected to the top of the left side wall of the box (1). A motor (4) is provided on the upper side wall of the bottom plate (3). A rotator (5) is fixedly connected to the output end of the motor (4). A rotating rod (6) is fixedly connected inside the rotator (5). The left and right ends of the rotating rod (6) are connected through the inside of the box (1). A sprocket (7) is fixedly connected to the outer side of the left and right ends of the rotating rod (6). A chain (8) is provided on both the left and right sides inside the box (1). The top of each chain (8) meshes with the outer side of a sprocket (7). A first support ring (9) is fixedly connected to the outer side of the two chains (8). The outer sides of the two first support rings (9) are rotatably connected to the inside of the left and right sides of the box (1).

2. An internal flow grid mill according to claim 1, characterized in that: The inner walls of the two chains (8) are fixedly connected with second support rings (10), and the other side of the two second support rings (10) is fixedly connected with multiple grid plates (11). The inside of the box (1) is provided with a sludge collection tank (12). The left side wall of the sludge collection tank (12) is fixedly connected with a first fixing plate (13). The left side wall of the first fixing plate (13) is fixedly connected to the inner left side wall of the box (1). The right side of the sludge collection tank (12) is connected through the inside of the box (1).

3. An internal flow grate according to claim 2, characterized in that: A first support plate (14) is fixedly connected to the right side wall of the box (1), and a connecting pool (15) is fixedly connected to the top of the first support plate (14). The rear side wall of the connecting pool (15) is fixedly connected to the right side wall of the sludge collection tank (12). A second fixing plate (16) is fixedly connected to the rear side wall of the sludge collection tank (12). A recess (17) is threadedly connected to the outer side of the rear side wall of the second fixing plate (16). A scraper (18) is fixedly connected to the rear side wall of the recess (17). The scraper (18) is correspondingly set with multiple grid plates (11).

4. An internal flow grate according to claim 1, characterized in that: A feed pipe (19) is connected through the bottom of the left side wall of the box (1), and a second support plate (20) is fixedly connected to the right side wall of the box (1). A pump (21) is provided on the top of the second support plate (20).

5. An internal flow grating machine according to claim 4, wherein: The pump (21) is fixedly connected to an inlet pipe (22) at its input end and to a connecting pipe (23) at its output end. A three-way pipe (24) is connected to the top of the connecting pipe (23).

6. An internal flow grating machine according to claim 5, wherein: The top rear of the triple tube (24) is connected to a first spray pipe (25), which is fixedly connected to the bottom of the rear half plate (2). The front side wall of the first spray pipe (25) is connected to a first nozzle (26).

7. An in-line flow grate machine according to claim 6, characterized in that: The top front of the triplex pipe (24) is connected to a second spray pipe (27), and the top of the second spray pipe (27) is fixedly connected to a connecting plate (28). The connecting plate (28) is fixedly connected to the bottom of the sludge collection tank (12), and the rear sidewalls of the connecting plate (28) are all connected to a second nozzle (29).

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