Self-cleaning type sewage treatment grid device

Abstract

The utility model relates to the technical field of self-cleaning sewage treatment grids, in particular to a self-cleaning sewage treatment grid device, which comprises a sewage treatment grid and a silica gel scraper, a driving roller and two driven rollers are rotatably connected in the sewage treatment grid respectively, and the silica gel scraper driving roller is in transmission connection with the two driven rollers through a rotary chain net. The cleaning roller and the driving roller are driven by the transmission mechanism to rotate relatively, the cleaning roller cleans impurities attached to the rotary chain net, the flow dividing pipe is arranged at the attached position of the cleaning roller and the rotary chain net, the water supply mechanism box supplies water to the flow dividing pipe and the spray head, and the flow dividing pipe and the spray head wash away the impurities attached to the cleaning roller and the rotary chain net. Residual impurities on the surface of a rotary chain net and gaps of chain links can be thoroughly removed through the dual functions of high-pressure washing of the flow dividing pipe and the spray heads and mechanical scraping and sweeping of the sweeping roller, the problem that the overflowing capacity of a traditional device is reduced due to impurity accumulation is solved, and long-term stable operation of the grating is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of self-cleaning sewage treatment bar technology, and specifically to a self-cleaning sewage treatment bar device. Background Technology

[0002] In wastewater treatment processes, bar screens serve as crucial pretreatment equipment, primarily used to intercept suspended solids and floating debris (such as plastic fragments, fibers, and branches) in wastewater to protect downstream treatment equipment (such as pumps and aeration systems) from clogging or damage. Existing wastewater treatment bar screens mostly employ a rotating chain mesh structure, using the cyclical movement of the chain mesh to intercept and transport impurities. However, in practical applications, this approach suffers from the following technical drawbacks:

[0003] After long-term operation, the surface and gaps between the chain links of the rotary mesh are prone to sticky impurities or fibrous substances. Traditional grids rely on the movement of the chain mesh itself or simple brush cleaning, which makes it difficult to completely remove residual impurities, resulting in a decrease in interception efficiency over time. At the same time, the continuous accumulation of residual impurities can easily cause the chain mesh to jam and the motor to overload. Moreover, the intercepted impurities are usually discharged directly into the collection box, and the large amount of moisture they contain increases the difficulty of subsequent cleaning and disposal. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a self-cleaning wastewater treatment bar screen device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-cleaning sewage treatment bar device, comprising a sewage treatment bar, wherein a driving roller and two driven rollers are rotatably connected inside the sewage treatment bar, the driving roller being drivenly connected to the two driven rollers via a rotary chain mesh, and further comprising:

[0006] Diverting pipe, the diverting pipe is fixed to the upper inner wall of the sewage treatment grid, and several nozzles are evenly fixed to the lower side of the diverting pipe. A cleaning roller is rotatably connected inside the sewage treatment grid, and the rotating chain mesh is in contact with the cleaning roller.

[0007] A transmission mechanism is used to drive the drive roller to rotate;

[0008] A cleaning mechanism, wherein the cleaning mechanism is used to drive the cleaning roller to rotate;

[0009] A drain box is fixedly connected to the rear side of a sewage treatment grid. A drain net is fixedly connected inside the drain box. A water outlet and a waste discharge outlet are respectively opened on the front and rear sides of the drain box. A movable groove is opened on the inner left side of the drain box, and a connecting seat is slidably connected inside the movable groove.

[0010] Waste discharge mechanism, which drives the connecting seat to move along the moving groove;

[0011] A water supply mechanism for supplying water to the branch pipes and nozzles.

[0012] Preferably, the transmission mechanism includes a geared motor, sprocket a, and sprocket b. The geared motor is fixed to the upper side of the sewage treatment screen, sprocket a is fixed to the output shaft of the geared motor, the right end of sprocket b extends into the sewage treatment screen and is fixed to a drive roller, and sprocket a is connected to sprocket b via a chain.

[0013] Preferably, the cleaning mechanism includes gear a and gear b, the left end of gear b extends into the sewage treatment grid and is fixedly connected to a cleaning roller, the left end of gear a extends into the sewage treatment grid and is fixedly connected to a drive roller, and gear a meshes with gear b.

[0014] Preferably, the water supply mechanism includes a water pump and a pumping pipe. The water pump is fixedly connected to the upper side of the sewage treatment grid, the discharge end of the water pump is connected to the diversion pipe through the drain pipe, and the pumping pipe is fixedly connected to the pumping end of the water pump.

[0015] Preferably, the waste discharge mechanism includes a cylinder and a silicone scraper. The cylinder is fixedly connected to the rear side of the drain box, the connecting seat is fixedly connected to the telescopic end of the cylinder, a connecting plate is fixedly connected to the right side of the connecting seat, two spring rods are fixedly connected to the upper side of the connecting plate, the silicone scraper is fixedly connected to the telescopic end of the spring rods, and the drain screen is slidably connected to the silicone scraper.

[0016] Preferably, the aforementioned.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention uses a transmission mechanism to drive the cleaning roller and the drive roller to rotate relative to each other. The cleaning roller cleans the impurities adhering to the rotating chain mesh. A diversion pipe is installed at the contact point between the cleaning roller and the rotating chain mesh. The water supply mechanism box supplies water through the diversion pipe and the nozzle. The diversion pipe and the nozzle wash the impurities adhering to the cleaning roller and the rotating chain mesh. Through the dual action of high-pressure washing by the diversion pipe and the nozzle and mechanical scraping by the cleaning roller, residual impurities on the surface of the rotating chain mesh and in the gaps between the chain links can be thoroughly removed. This avoids the problem of reduced flow capacity caused by impurity accumulation in traditional devices and ensures the long-term stable operation of the screen.

[0019] In this invention, the draining net inside the draining box separates impurities from water, reducing the moisture content of impurities; the waste discharge mechanism automatically cleans the dehydrated impurities on the draining net by driving a silicone scraper with a cylinder, avoiding manual cleaning and reducing operational intensity and transportation costs. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the wastewater treatment bar in this utility model;

[0023] Figure 3 This is a schematic diagram of the drainage structure of the drain box in this utility model;

[0024] Figure 4 This is an enlarged structural diagram of point A in this utility model;

[0025] Figure 5 This is an enlarged structural diagram of point B in this utility model;

[0026] In the diagram: 1. Wastewater treatment screen; 2. Driven roller; 3. Driven roller; 4. Rotary chain conveyor.

[0027] Cleaning mechanism: 51. Gear a; 52. Gear b; 53. Cleaning roller;

[0028] 6. Diverter pipe; 7. Sprayer head; 8. Drain box;

[0029] Transmission mechanism: 91. Gear motor; 92. Sprocket a; 93. Sprocket b; 94. Chain;

[0030] 10. Protective shield a; 11. Protective shield b;

[0031] Water supply system: 121. Water pump; 122. Pumping pipe; 123. Drainage pipe;

[0032] Waste discharge mechanism: 131. Cylinder; 132. Connecting seat; 133. Connecting plate; 134. Spring rod; 135. Silicone scraper;

[0033] 14. Water outlet; 15. Drainage net; 16. Movable trough; 17. Waste discharge outlet. Detailed Implementation

[0034] 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.

[0035] like Figure 1-5 As shown, this utility model has the following four specific embodiments.

[0036] Example 1

[0037] A self-cleaning sewage treatment bar device includes a sewage treatment bar 1, with a driving roller 3 and two driven rollers 2 rotatably connected inside the sewage treatment bar 1. The driving roller 3 is connected to the two driven rollers 2 via a rotating chain mesh 4. The device is characterized by further comprising:

[0038] Diversion pipe 6 is fixed to the upper inner wall of sewage treatment grid 1. Several nozzles 7 are evenly fixed to the lower side of diversion pipe 6. A cleaning roller 53 is rotatably connected inside sewage treatment grid 1. Rotary chain mesh 4 is in contact with cleaning roller 53.

[0039] The transmission mechanism is used to drive the drive roller 3 to rotate;

[0040] The cleaning mechanism is used to drive the cleaning roller 53 to rotate.

[0041] The drain box 8 is fixed to the rear side of the sewage treatment grid 1. The drain box 8 has a drain net 15 fixed inside. The drain box 8 has an outlet 14 and a waste discharge outlet 17 on the front and rear sides respectively. The drain box 8 has a moving groove 16 on the left inner wall. The moving groove 16 has a connecting seat 132 slidably connected inside.

[0042] Waste discharge mechanism, used to drive the connecting seat 132 to move along the moving groove 16;

[0043] The water supply mechanism is used to supply water to the branch pipe 6 and the nozzle 7.

[0044] In this embodiment, as Figures 1-2 ,as well as Figures 3-4 As shown, the transmission mechanism drives the active roller 3 to rotate, and the rotation of the active roller 3 drives the two driven rollers 2 to rotate through the rotary chain mesh 4. The rotary chain mesh 4 scoops up impurities in the sewage. The rotation of the active roller 3 drives the cleaning mechanism, and the cleaning mechanism drives the cleaning roller 53 to clean the impurities adhering to the rotary chain mesh 4. The cleaning roller 53 and the active roller 3 rotate relative to each other. The water supply mechanism draws external water and washes the impurities adhering to the cleaning roller 53 and the rotary chain mesh 4 through the diversion pipe 6 and the nozzle 7 to prevent impurities from adhering to the surface of the cleaning roller 53. The impurities fall into the drain box 8 under their own weight. The drain mesh 15 in the drain box 8 drains the water contained in the impurities. The drained water is discharged back through the outlet 14. The waste discharge mechanism drives the silicone scraper 135 to move to the right and discharges the drained impurities out of the drain box 8 through the waste discharge port 17.

[0045] Example 2

[0046] The difference from Embodiment 1 is that this embodiment discloses a transmission mechanism for the drive roller 3 and the cleaning roller 53:

[0047] Preferably, the transmission mechanism includes a geared motor 91, a sprocket a92 and a sprocket b93. The geared motor 91 is fixed to the upper side of the sewage treatment screen 1, the sprocket a92 is fixed to the output shaft of the geared motor 91, the right end of the sprocket b93 extends into the sewage treatment screen 1 and is fixed to a drive roller 3, and the sprocket a92 is connected to the sprocket b93 through a chain 94.

[0048] Preferably, the cleaning mechanism includes gear a51 and gear b52. The left end of gear b52 extends into the sewage treatment grid 1 and is fixedly connected to a cleaning roller 53. The left end of gear a51 extends into the sewage treatment grid 1 and is fixedly connected to a drive roller 3. Gear a51 meshes with gear b52.

[0049] Preferably, protective covers a10 and b11 are fixedly connected to the left and right sides of the sewage treatment grid 1, respectively.

[0050] In this embodiment, as Figure 2 and Figure 4 As shown, the geared motor 91 drives the sprocket a92 to rotate, and the sprocket a92 drives the sprocket b93 to rotate via the chain 94. The rotation of the sprocket b93 drives the drive roller 3 and the gear a51 to rotate. The rotation of the gear a51 drives the gear b52 to rotate, and the rotation of the gear b52 drives the cleaning roller 53 to rotate. The gears a51 and b52 mesh, and the cleaning roller 53 and the drive roller 3 rotate relative to each other. The cleaning roller 53 cleans the impurities adhering to the rotating chain mesh 4. The impurities fall into the drain box 8 under their own weight, and the drain net 15 in the drain box 8 drains the water contained in the impurities.

[0051] like Figure 1 and Figure 2 As shown, sprockets a92 and b93 and chain 94 are protected by protective cover a10, and gears a51 and b52 are protected by protective cover b11.

[0052] Example 3

[0053] The difference from Embodiment 2 is that this embodiment discloses how to supply water to the diversion pipe 6 and the nozzle 7:

[0054] Preferably, the water supply mechanism includes a water pump 121 and a pumping pipe 122. The water pump 121 is fixedly connected to the upper side of the sewage treatment grid 1. The discharge end of the water pump 121 is connected to the diversion pipe 6 through the drain pipe 123. The pumping pipe 122 is fixedly connected to the pumping end of the water pump 121.

[0055] In this embodiment, as Figure 1 and Figure 2As shown, the water pump 121 draws external water through the water pumping pipe 122 and discharges it into the diversion pipe 6 and the nozzle 7 through the drain pipe 123. The diversion pipe 6 is located at the contact point between the cleaning roller 53 and the rotating chain mesh 4. The diversion pipe 6 and the nozzle 7 wash away the impurities adhering to the cleaning roller 53 and the rotating chain mesh 4.

[0056] Example 4

[0057] The difference from Example 3 is that this example discloses how to remove impurities from the draining tank 8:

[0058] Preferably, the waste discharge mechanism includes a cylinder 131 and a silicone scraper 135. The cylinder 131 is fixed to the rear side of the drain box 8, and the connecting seat 132 is fixed to the telescopic end of the cylinder 131. A connecting plate 133 is fixed to the right side of the connecting seat 132. Two spring rods 134 are fixed to the upper side of the connecting plate 133. The silicone scraper 135 is fixed to the telescopic end of the spring rods 134. The drain screen 15 is slidably connected to the silicone scraper 135.

[0059] Spring rod 134 pushes silicone scraper 135 downward to fit against the upper side of drain net 15. Cylinder 131 drives connecting seat 132, connecting plate 133 and silicone scraper 135 to move backward. Silicone scraper 135 scrapes off the impurities after draining on drain net 15 and discharges them through waste outlet 17.

[0060] Working principle and usage process of this utility model:

[0061] This utility model, when in use:

[0062] The geared motor 91 drives the sprocket a92 to rotate, and the sprocket a92 drives the sprocket b93 to rotate through the chain 94. The rotation of the sprocket b93 drives the drive roller 3 and the gear a51 to rotate. The rotation of the gear a51 drives the gear b52 to rotate, and the rotation of the gear b52 drives the cleaning roller 53 to rotate. The gear a51 and the gear b52 mesh, and the cleaning roller 53 and the drive roller 3 rotate relative to each other. The cleaning roller 53 cleans the impurities adhering to the rotating chain mesh 4. The impurities fall into the drain box 8 under their own weight. The drain mesh 15 in the drain box 8 drains the water contained in the impurities. The drained water is discharged back through the outlet 14.

[0063] Spring rod 134 pushes silicone scraper 135 downward to fit against the upper side of drain net 15. Cylinder 131 drives connecting seat 132, connecting plate 133 and silicone scraper 135 to move backward. Silicone scraper 135 scrapes off the impurities after draining on drain net 15 and discharges them through waste outlet 17.

[0064] Water pump 121 draws external water through water pumping pipe 122 and discharges it into diversion pipe 6 and nozzle 7 through drain pipe 123. Diversion pipe 6 is located at the contact point between cleaning roller 53 and rotating chain mesh 4. Diversion pipe 6 and nozzle 7 wash away the impurities adhering to cleaning roller 53 and rotating chain mesh 4.

[0065] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0066] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A self-cleaning sewage treatment bar device, comprising a sewage treatment bar (1), wherein a driving roller (3) and two driven rollers (2) are rotatably connected inside the sewage treatment bar (1), the driving roller (3) being drivenly connected to the two driven rollers (2) via a rotating chain mesh (4), characterized in that, Also includes: Diversion pipe (6), the diversion pipe (6) is fixed to the upper inner wall of the sewage treatment grid (1), and a number of nozzles (7) are evenly fixed to the lower side of the diversion pipe (6). A cleaning roller (53) is rotatably connected inside the sewage treatment grid (1), and the rotating chain mesh (4) is in contact with the cleaning roller (53). A transmission mechanism is provided for driving the drive roller (3) to rotate. A cleaning mechanism for driving the cleaning roller (53) to rotate; A drain box (8) is fixed to the rear side of the sewage treatment grid (1). A drain net (15) is fixed inside the drain box (8). A water outlet (14) and a waste discharge outlet (17) are respectively opened on the front and rear sides of the drain box (8). A moving groove (16) is opened on the left inner wall of the drain box (8). A connecting seat (132) is slidably connected inside the moving groove (16). Waste discharge mechanism, which is used to drive the connecting seat (132) to move along the moving groove (16); A water supply mechanism for supplying water to the branch pipe (6) and the nozzle (7).

2. The self-cleaning sewage treatment bar device according to claim 1, characterized in that: The transmission mechanism includes a geared motor (91), sprocket a (92) and sprocket b (93). The geared motor (91) is fixed to the upper side of the sewage treatment screen (1). The sprocket a (92) is fixed to the output shaft of the geared motor (91). The right end of the sprocket b (93) extends into the sewage treatment screen (1) and is fixed to a drive roller (3). The sprocket a (92) is connected to the sprocket b (93) via a chain (94).

3. The self-cleaning sewage treatment bar device according to claim 1, characterized in that: The cleaning mechanism includes gear a (51) and gear b (52). The left end of gear b (52) extends into the sewage treatment grid (1) and is fixedly connected to a cleaning roller (53). The left end of gear a (51) extends into the sewage treatment grid (1) and is fixedly connected to a drive roller (3). Gear a (51) meshes with gear b (52).

4. The self-cleaning sewage treatment bar device according to claim 1, characterized in that: The water supply mechanism includes a water pump (121) and a pumping pipe (122). The water pump (121) is fixedly connected to the upper side of the sewage treatment grid (1). The discharge end of the water pump (121) is connected to the diversion pipe (6) through the drain pipe (123). The pumping pipe (122) is fixedly connected to the pumping end of the water pump (121).

5. The self-cleaning sewage treatment bar device according to claim 1, characterized in that: The waste discharge mechanism includes a cylinder (131) and a silicone scraper (135). The cylinder (131) is fixed to the rear side of the drain box (8). The connecting seat (132) is fixed to the telescopic end of the cylinder (131). A connecting plate (133) is fixed to the right side of the connecting seat (132). Two spring rods (134) are fixed to the upper side of the connecting plate (133). The silicone scraper (135) is fixed to the telescopic end of the spring rods (134). The drain net (15) is slidably connected to the silicone scraper (135).

6. The self-cleaning sewage treatment bar device according to claim 1, characterized in that: The wastewater treatment screen (1) is fixed with protective cover a (10) and protective cover b (11) on its left and right sides respectively.

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