A sewage treatment grille machine

Abstract

This utility model relates to a bar screen for wastewater treatment, belonging to the field of wastewater treatment technology. It includes a machine body with a bar screen assembly inside and a drive assembly for rotating the bar screen assembly on the outside. The machine body includes wastewater inlet pipes and outlet pipes on both sides. The middle part of the machine body is a circular tubular structure connected to the inlet and outlet pipes on both sides respectively. A fan-shaped intercepting net is fixed to the outlet side of the circular tubular structure connected to the outlet pipe. This wastewater treatment bar screen, driven by a motor, continuously collects impurities from the wastewater as the rotating drum and intercepting bar rotate. During rotation, the impurities are buoyed and sent into the inside of the collecting drum. Simultaneously, the rotating rod drives the spiral blades to continuously push the impurities stored inside the collecting drum towards one side of the discharge drum. The impurities entering the discharge drum float to the outlet position of the discharge drum due to buoyancy, thus achieving rapid discharge.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a bar screen for wastewater treatment. Background Technology

[0002] Wastewater bar screens are key pretreatment equipment in the wastewater treatment process. Their core function is to intercept and remove large suspended solids, floating objects and impurities in wastewater, preventing these substances from clogging, wearing down or affecting the treatment effect of subsequent treatment equipment.

[0003] Chinese Patent No. CN208869334U discloses a novel bar screen for wastewater treatment, comprising a wastewater treatment tank. The upper surface of the wastewater treatment tank is provided with four electric telescopic rods, and the top of each electric telescopic rod is provided with a connecting frame. The lower surface of the connecting frame on the right is connected to a filter bar, and the lower surface of the connecting frame on the left is connected to a filter bar. This novel bar screen for wastewater treatment facilitates the filtration of fixed substances in wastewater by setting filter bars one and filter bars two.

[0004] This utility model facilitates the collection and treatment of solid materials by setting up a collection box. The sewage treatment tank can prevent the electric telescopic rods 1 and 2 from coming into contact with sewage, thus avoiding corrosion of electrical equipment and extending the service life of the new sewage treatment bar screen. It is relatively convenient to use. However, this structure requires cleaning of the filter screen during use, which is inconvenient. Therefore, a sewage treatment bar screen is proposed. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a bar screen for sewage treatment, which has the advantages of good flexibility and high stability, and solves the problem that traditional bar screens need to be cleaned frequently and are inconvenient to use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a bar screen for sewage treatment, comprising a body, wherein a bar screen assembly is provided inside the body, and a drive assembly for driving the bar screen assembly to rotate is provided on the outside of the body;

[0007] The machine body includes sewage inlet pipes and outlet pipes on both sides. The middle part of the machine body is a circular tubular structure and is connected to the inlet pipe and outlet pipe on both sides respectively. A fan-shaped interception net is fixed on the outlet side of the circular tubular structure connected to the outlet pipe.

[0008] The grid assembly includes a rotating cylinder rotatably connected inside the machine body for interception. A driven gear plate is fixedly installed at the right end of the rotating cylinder. Several interception grids for interception are fixed on the surface of the rotating cylinder. A receiving cylinder is rotatably connected inside the rotating cylinder. A fixed plate is fixed on the left side of the receiving cylinder. A slag discharge cylinder is fixed at the end of the receiving cylinder away from the fixed plate. A rotating rod is rotatably connected inside the fixed plate. A spiral blade is fixed on the outside of the rotating rod. A driven wheel is fixed at the end of the rotating rod located outside the fixed plate.

[0009] The drive assembly includes a drive motor fixedly mounted on the top of the machine body, and a transmission gear rotatably connected to the right side of the machine body and driven by the drive motor, the transmission gear meshing with the driven gear plate.

[0010] Furthermore, both sides of the machine body are provided with through-holes for use with the grid assembly, and both ends of the rotating cylinder pass through the through-holes of the machine body and are rotatably connected to the machine body. The surface of the rotating cylinder is provided with several annularly distributed slag inlets.

[0011] Furthermore, the intercepting grid is inserted into the slag inlet and fixedly installed with the rotating cylinder. The end of the intercepting grid is fixed with a cleaning brush for use with the intercepting net. The surface of the receiving cylinder is provided with several water-permeable grooves and the upper and lower sides are provided with feed inlets for the waste slag to enter.

[0012] Furthermore, a support frame is fixed to one end of the receiving cylinder near the slag discharge cylinder, and the end of the rotating rod away from the fixed plate is rotatably connected to the support frame.

[0013] Furthermore, the fixed plate is fixedly installed on the side away from the driven wheel, and the storage tube is fixedly installed through the through-hole to the fixed plate.

[0014] Furthermore, the surface of the spiral blade is provided with several drainage grooves, and a ring of bristles is fixed on the outer side of the spiral blade for cleaning the drainage grooves on the surface of the storage cylinder.

[0015] Furthermore, the drive motor is a dual-head motor with drive wheels fixed at both ends. A transmission wheel is fixed on the right side of the transmission gear. The right drive wheel is connected to the transmission wheel via a transmission belt, and the left drive wheel is connected to the driven wheel via a transmission belt.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] 1. This wastewater treatment bar screen uses a drive motor to rotate a drum and a screening screen, continuously collecting impurities from the wastewater during rotation. The impurities are buoyed and sent into the inside of the collection drum during rotation. At the same time, the rotating rod drives the spiral blades to continuously push the impurities stored inside the collection drum to one side of the discharge drum. The impurities entering the discharge drum float to the outlet position of the discharge drum due to buoyancy, thereby achieving the purpose of rapid discharge.

[0018] 2. This wastewater treatment bar screen uses a drive motor to rotate a rotating drum outside the receiving drum, while a spiral blade rotates at a different speed inside the receiving drum. During rotation, the rotating drum intermittently seals the feed inlet of the receiving drum, allowing the spiral blade to smoothly push impurities out of the receiving drum. At the same time, the rotating bar screen and spiral blade clean the surface of the receiving drum and the receiving drum respectively, preventing the holes from clogging and affecting the wastewater treatment efficiency. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is a cross-sectional view of the present invention;

[0021] Figure 3 This is a longitudinal cross-sectional view of the present invention;

[0022] Figure 4 This is a connection structure diagram of some of the grille components of this utility model;

[0023] Figure 5 This is a perspective view of the storage tube, fixing plate, and slag discharge tube of this utility model;

[0024] Figure 6 This is a perspective view of the rotating rod and spiral blade of this utility model.

[0025] In the diagram: 1. Machine body; 11. Inlet pipe; 12. Outlet pipe; 13. Interception net; 2. Grille assembly; 21. Rotating cylinder; 211. Slag inlet; 22. Driven gear disc; 23. Interception grille; 24. Collection cylinder; 241. Feed inlet; 242. Support frame; 25. Fixed plate; 26. Slag discharge cylinder; 27. Rotating rod; 28. Spiral blade; 281. Drainage channel; 29. ​​Driven wheel; 3. Drive assembly; 31. Drive motor; 32. Transmission gear. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1 The wastewater treatment bar screen in this embodiment includes a body 1, a bar screen assembly 2 inside the body 1, and a drive assembly 3 for driving the bar screen assembly 2 to rotate on the outside of the body 1.

[0028] Please see Figure 2 In this embodiment, the body 1 includes sewage inlet pipes 11 and outlet pipes 12 on both sides. The middle part of the body 1 is a circular tubular structure and the two sides are connected to the inlet pipes 11 and outlet pipes 12 respectively. A fan-shaped interception net 13 is fixed on the outlet side of the circular tubular structure connected to the outlet pipe 12.

[0029] Please see Figures 3 to 6 In this embodiment, the grid assembly 2 includes a rotating cylinder 21 rotatably connected inside the body 1 for interception. A driven gear disk 22 is fixedly installed on the right end of the rotating cylinder 21. Several interception grids 23 for interception are fixed on the surface of the rotating cylinder 21. A receiving cylinder 24 is rotatably connected inside the rotating cylinder 21. A fixed disk 25 is fixed on the left side of the receiving cylinder 24. A slag discharge cylinder 26 is fixed at the end of the receiving cylinder 24 away from the fixed disk 25. A rotating rod 27 is rotatably connected inside the fixed disk 25. A spiral blade 28 is fixed on the outside of the rotating rod 27. A driven wheel 29 is fixed at the end of the rotating rod 27 located outside the fixed disk 25.

[0030] In this embodiment, both sides of the machine body 1 are provided with through openings for use with the grid assembly 2. The two ends of the rotating cylinder 21 pass through the through openings of the machine body 1 and are rotatably connected to the machine body 1. The surface of the rotating cylinder 21 is provided with several annularly distributed slag inlets 211. The intercepting grid 23 is inserted into the slag inlet 211 and fixedly installed with the rotating cylinder 21. The end of the intercepting grid 23 is fixed with a cleaning brush for use with the intercepting net 13. The surface of the receiving cylinder 24 is provided with several water-permeable grooves and the upper and lower sides are provided with feed inlets 241 for waste slag to enter. The end of the receiving cylinder 24 near the slag discharge cylinder 26 is fixed with a support frame 242. The end of the rotating rod 27 away from the fixed plate 25 is rotatably connected to the support frame 242.

[0031] In this embodiment, the fixed plate 25 is fixedly installed on the side away from the driven wheel 29 to the machine body 1, the storage tube 24 is fixedly installed through the through hole to the fixed plate 25, the surface of the spiral blade 28 is provided with a number of drainage grooves 281 for drainage, and a ring of bristles is fixed on the outer side of the spiral blade 28 for cleaning the drainage grooves on the surface of the storage tube 24.

[0032] Please refer to it again. Figure 3 In this embodiment, the drive assembly 3 includes a drive motor 31 fixedly installed on the top of the body 1. A transmission gear 32, which is connected to the drive motor 31, is rotatably connected to the right side of the body 1. The transmission gear 32 meshes with the driven gear disk 22.

[0033] In this embodiment, the drive motor 31 is a dual-head motor with drive wheels fixed at both ends. The right side of the transmission gear 32 is fixed with a transmission wheel. The right drive wheel is connected to the transmission wheel via a transmission belt, and the left drive wheel is connected to the driven wheel 29 via a transmission belt.

[0034] It should be noted that the output shafts at both ends of the drive motor 31 are directly and indirectly connected to the rotating rod 27 and the rotating cylinder 21, respectively, so that the rotating rod 27 rotates in opposite directions and at different speeds, thereby improving the processing efficiency of impurities at different stages.

[0035] All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0036] The working principle of the above embodiments is as follows:

[0037] (1) By connecting the machine body 1 into the sewage treatment pipeline, sewage enters the interior of the machine body 1 along the inlet pipe 11. The drive motor 31 is started to rotate. The drive motor 31 drives the transmission wheel on the side of the transmission gear 32 to rotate through the transmission belt, so that the transmission gear 32 drives the rotating drum 21 to rotate. The rotation of the rotating drum 21 causes the intercepting grid 23 to continuously agitate the sewage. During the rotation, the intercepting grid 23 presses the impurities under the intercepting grid 23. When the slag inlet 211 of the rotating drum 21 and the feed inlet of the receiving cylinder 24 are connected, the sewage is discharged into the machine body. When 241 overlaps, impurities enter the interior of the receiving cylinder 24 under the action of buoyancy. Subsequently, the slag inlet 211 and the feed inlet 241 are misaligned, and the impurities inside the receiving cylinder 24 cannot be discharged. The rotation of the drive motor 31 drives the driven wheel 29 to rotate, thereby driving the spiral blade 28 to rotate inside the receiving cylinder 24, continuously pushing the impurities to move along the inner wall of the receiving cylinder 24. The continuously accumulating impurities enter the slag discharge cylinder 26 under the push of the spiral blade 28, and rise to the surface position of the slag discharge cylinder 26 under the action of buoyancy, thus achieving the purpose of impurity removal.

[0038] (2) The drive motor 31 drives the spiral blade 28 and the rotating cylinder 21 to rotate at different speeds inside the collection cylinder 24. At the same time, the bristles on the surface of the spiral blade 28 continuously clean the permeable grooves on the surface of the collection cylinder 24 to prevent impurities from clogging the surface of the collection cylinder 24 and affecting the smooth discharge of sewage. The intercepting grid 23 continuously cleans the surface of the intercepting net 13 during rotation to prevent impurities from clogging the mesh of the intercepting net 13 and affecting the flow of sewage. This solves the problem that traditional grid machines need to be cleaned frequently and are inconvenient to use.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] 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.

Claims

1. A bar screen for wastewater treatment, comprising a body (1), characterized in that: The body (1) is provided with a grid assembly (2) inside, and a drive assembly (3) for driving the grid assembly (2) to rotate is provided on the outside of the body (1); The body (1) includes sewage inlet pipes (11) and outlet pipes (12) on both sides. The middle part of the body (1) is a circular tubular structure and the two sides are connected to the inlet pipes (11) and outlet pipes (12) respectively. A fan-shaped interception net (13) is fixed on the outlet side of the circular tubular structure connected to the outlet pipe (12). The grid assembly (2) includes a rotating cylinder (21) rotatably connected inside the body (1) for interception. A driven gear disc (22) is fixedly installed on the right end of the rotating cylinder (21). Several interception grids (23) for interception are fixed on the surface of the rotating cylinder (21). A receiving cylinder (24) is rotatably connected inside the rotating cylinder (21). A fixed disc (25) is fixed on the left side of the receiving cylinder (24). A slag discharge cylinder (26) is fixed at the end of the receiving cylinder (24) away from the fixed disc (25). A rotating rod (27) is rotatably connected inside the fixed disc (25). A spiral blade (28) is fixed on the outside of the rotating rod (27). A driven wheel (29) is fixed at the end of the rotating rod (27) located outside the fixed disc (25). The drive assembly (3) includes a drive motor (31) fixedly mounted on the top of the body (1), and a transmission gear (32) rotatably connected to the right side of the body (1) and driven by the drive motor (31). The transmission gear (32) meshes with the driven gear disc (22).

2. The bar screen for wastewater treatment according to claim 1, characterized in that: Both sides of the machine body (1) are provided with through openings for use with the grid assembly (2). The two ends of the rotating cylinder (21) pass through the through openings of the machine body (1) and are rotatably connected to the machine body (1). The surface of the rotating cylinder (21) is provided with a number of annularly distributed slag inlets (211).

3. A bar screen for wastewater treatment according to claim 2, characterized in that: The intercepting grid (23) is inserted into the slag inlet (211) and fixedly installed with the rotating cylinder (21). The end of the intercepting grid (23) is fixed with a cleaning brush for use with the intercepting net (13). The surface of the receiving cylinder (24) is provided with several water-permeable grooves and the upper and lower sides are provided with feed inlets (241) for the waste slag to enter.

4. A bar screen for wastewater treatment according to claim 1, characterized in that: The receiving cylinder (24) is fixed with a support frame (242) at one end near the slag discharge cylinder (26), and the rotating rod (27) is rotatably connected to the support frame (242) at the end away from the fixed plate (25).

5. A bar screen for wastewater treatment according to claim 2, characterized in that: The fixed plate (25) is fixedly installed on the side away from the driven wheel (29) and the storage tube (24) is fixedly installed on the fixed plate (25) through the through hole.

6. A bar screen for wastewater treatment according to claim 1, characterized in that: The surface of the spiral blade (28) is provided with several drainage grooves (281) for drainage, and a ring of bristles is fixed on the outside of the spiral blade (28) for cleaning the drainage grooves on the surface of the storage cylinder (24).

7. A bar screen for wastewater treatment according to claim 1, characterized in that: The drive motor (31) is a dual-head motor with drive wheels fixed at both ends. The right side of the transmission gear (32) is fixed with a transmission wheel. The right drive wheel is connected to the transmission wheel via a transmission belt. The left drive wheel is connected to the driven wheel (29) via a transmission belt.

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