A dross fishing device

Abstract

The utility model discloses a scum salvaging device, including the shell, the shell one side is open design, the bottom of shell is far away from its open side and is equipped with the water guide groove, install push water subassembly in the water guide groove, two symmetrical inclined side plates are fixed with on the top of shell and be located water guide groove top, the common installation of rotating salvage subassembly is between two inclined side plates and shell inner side wall, the top of shell and be close to the fixed guide plate of salvage subassembly one side, in the utility model, set up shell, water guide groove, push water subassembly, salvage subassembly, guide plate and the material shifting subassembly, the device is installed above the sewage pool, through starting push water subassembly and drive the water body on the surface of sewage pool to flow to the one side of salvage subassembly, then utilize salvage subassembly and take out the scum that moves to the shell, and this device is smaller, will not cross the whole sewage pool above and reciprocating movement, and the salvage subassembly of cyclic rotation when salvaging scum, it is more convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a scum removal device. Background Technology

[0002] During wastewater treatment, a large amount of scum often accumulates on the surface of wastewater tanks. This scum mainly consists of light pollutants such as grease, foam, and suspended solids. If not cleaned in time, it will hinder aeration, breed bacteria, and affect subsequent treatment processes. Traditional manual scum removal is inefficient and poses safety hazards. Therefore, automated scum removal devices are needed, which integrate mechanical filtration, suction, and collection to achieve continuous and efficient cleaning. These devices typically consist of an adjustable frame, a filtration mechanism, a drive system, and a collection tank. They can adapt to different tank sizes, improve wastewater treatment efficiency, and reduce operation and maintenance costs, making them a key supporting equipment in modern wastewater treatment plants.

[0003] A search revealed that patent CN222226005U discloses a scum removal device for sewage tanks. The height of the frame can be adjusted by raising and lowering the lifting rod. Two mounting shafts on both sides of the bottom of the connecting plate rotate through the operation of a motor, thereby adjusting the angle of the frame to facilitate the collection of floating objects inside the sewage tank, thus improving the practicality of the scum removal device for sewage tanks.

[0004] However, the above-mentioned device has the following drawbacks: like the current chain scraper conveyor for air flotation, it needs to span the entire top of the sewage tank during installation, making it bulky and inconvenient to install; furthermore, the device requires a control frame to move back and forth to remove scum, which is not convenient to use, and it cannot actively clean the filter screen when it is clogged, affecting the subsequent scum removal effect. Therefore, further improvements are needed, and to this end, we have proposed a scum removal device. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a scum removal device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a scum removal device, comprising a shell, one side of which is open, a water guide channel is provided at the bottom of the shell away from its open side, a water pushing component is installed inside the water guide channel, two symmetrical inclined side plates are fixed at the top of the shell above the water guide channel, a rotating scum removal component is installed between the two inclined side plates and the inner wall of the shell, a material guide plate is fixed at the top of the shell near the scum removal component, a rinsing component is installed on the upper surface of the material guide plate, and a material feeding component is installed inside the shell away from the scum removal component.

[0007] Furthermore, the water-pushing assembly includes a sealing cover fixed inside the water guide channel. The bottom wall of the sealing cover is rotatably connected to multiple vertical shafts via a sealing bearing. Each of the multiple vertical shafts has a propeller fixedly connected to its bottom end and a driven bevel gear fixedly connected to its top end. A horizontal shaft is rotatably connected inside the sealing cover. A driving bevel gear is fixed to the surface of the horizontal shaft near each driven bevel gear. The driving bevel gear meshes with the corresponding driven bevel gear. A first motor that drives the horizontal shaft to rotate is installed inside the sealing cover.

[0008] Furthermore, the top of the sealing cover has an arc-shaped design.

[0009] Furthermore, the salvage assembly includes a drive shaft and a driven shaft. The drive shaft is rotatably connected to two inclined side plates via bearings, and the driven shaft is rotatably connected to the inner wall of the outer casing via bearings. Drive sprockets are fixed to both ends of the drive shaft, and driven sprockets are fixed to both ends of the driven shaft. Chains are meshed between the surfaces of the drive sprockets and driven sprockets on the same side. Multiple salvage net frames are fixedly connected between the two chains. A second motor that drives the drive shaft to rotate is fixed to the top of the inclined side plates.

[0010] Furthermore, the rinsing assembly includes an L-shaped tube fixed to the upper surface of the guide plate, and multiple nozzles are fixed to the side wall of the L-shaped tube, with the nozzles inclined toward the retrieval net frame.

[0011] Furthermore, a vertical water baffle is fixed on the upper surface of the guide plate near the outer shell.

[0012] Furthermore, the feeding assembly includes a feeding shaft that is rotatably connected to the side wall of the housing via a bearing. Multiple mesh plates are fixed at equal intervals on the outer side wall of the feeding shaft, and a third motor that drives the feeding shaft to rotate is fixed outside the housing.

[0013] The beneficial effects of this utility model are:

[0014] 1. When in use, this utility model is equipped with a shell, a water guide channel, a water pushing component, a scooping component, a material guide plate, and a material dispensing component. The device is installed above the sewage tank. By activating the water pushing component, the water on the surface of the sewage tank is driven to flow towards the scooping component. Then, the scooping component is used to scoop out the floating scum that has moved into the shell. The device is smaller in size and does not span the entire sewage tank and move back and forth. Moreover, the circulating scooping component is more convenient to use when scooping out floating scum.

[0015] 2. In use, this utility model is equipped with a retrieval component and a rinsing component. After the scum is retrievaled by the retrieval net frame of the retrieval component, the rinsing component is used to rinse the retrieval net frame, thereby ensuring the cleanliness of the retrieval net frame and preventing the scum from returning to the sewage tank. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an overall sectional view of the present invention;

[0018] Figure 2 This is a three-dimensional view of the salvage net frame of this utility model;

[0019] Figure 3 For the present utility model Figure 1 Enlarged view of point A in the middle.

[0020] The attached figures are labeled as follows:

[0021] 1. Outer shell; 2. Water guide channel; 3. Water pushing assembly; 31. Sealing cover; 32. Vertical shaft; 33. Propeller; 34. Driven bevel gear; 35. Horizontal shaft; 36. Driven bevel gear; 4. Slanted side plate; 5. Salvage assembly; 51. Driven shaft; 52. Driven shaft; 53. Driven sprocket; 54. Driven sprocket; 55. Chain; 56. Salvage net frame; 6. Material guide plate; 7. Flushing assembly; 71. L-shaped tube; 72. Nozzle; 8. Water baffle; 9. Material feeding assembly; 91. Material feeding shaft; 92. Net plate. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1-3 As shown, a scum removal device is disclosed, comprising a shell 1, one side of which is open, and a water guide channel 2 is provided at the bottom of the shell 1 away from its open side. A water pushing component 3 is installed inside the water guide channel 2. Two symmetrical inclined side plates 4 are fixed at the top of the shell 1 above the water guide channel 2. A rotating scum removal component 5 is installed between the two inclined side plates 4 and the inner wall of the shell 1. A material guide plate 6 is fixed at the top of the shell 1 near the scum removal component 5. A flushing component 7 is installed on the upper surface of the material guide plate 6. A material pushing component 9 is installed inside the shell 1 away from the scum removal component 5.

[0024] In this embodiment, a PLC controller is installed on the surface of the outer casing 1. Specifically, the model is an S7-1200 series CPU 1214C. The PLC controller controls the operation of the electronic components of the device.

[0025] The water-pushing assembly 3 includes a sealing cover 31 fixed inside the water guide channel 2. The bottom wall of the sealing cover 31 is rotatably connected to multiple vertical shafts 32 through a sealing bearing. Each of the multiple vertical shafts 32 has a propeller 33 fixedly connected to its bottom end, and each of the multiple vertical shafts 32 has a driven bevel gear 34 fixedly connected to its top end. A horizontal shaft 35 is rotatably connected inside the sealing cover 31. A driving bevel gear 36 is fixed on the surface of the horizontal shaft 35 near each driven bevel gear 34. The driving bevel gear 36 meshes with the corresponding driven bevel gear 34. A first motor that drives the horizontal shaft 35 to rotate is installed inside the sealing cover 31.

[0026] After the first motor is started, it drives the horizontal shaft 35 to rotate. The active bevel gear 36 on the surface of the horizontal shaft 35 drives the corresponding driven bevel gear 34 to rotate, thereby driving the vertical shaft 32 and the propeller 33 to rotate. Under the push of the propeller 33, the water in the outer shell 1 flows down along the water guide channel 2. After the device is installed inside the sewage tank, the water on the surface of the sewage tank will flow into the outer shell 1, so that the scum on the surface of the sewage enters the interior of the outer shell 1.

[0027] The top of the sealing cover 31 is designed with an arc surface. The arc surface of the sealing cover 31 can reduce water flow resistance.

[0028] The salvage assembly 5 includes a drive shaft 51 and a driven shaft 52. The drive shaft 51 is rotatably connected to two inclined side plates 4 via bearings, and the driven shaft 52 is rotatably connected to the inner wall of the outer casing 1 via bearings. Drive sprockets 53 are fixed to both ends of the drive shaft 51, and driven sprockets 54 are fixed to both ends of the driven shaft 52. Chains 55 are meshed together on the surfaces of the drive sprockets 53 and driven sprockets 54 on the same side. Multiple salvage net frames 56 are fixedly connected between the two chains 55. A second motor that drives the drive shaft 51 to rotate is fixed to the top of the inclined side plate 4.

[0029] After the second motor is started and drives the drive shaft 51 to rotate, the chain 55 drives multiple scooping net frames 56 to rotate in a cycle. The scooping net frames 56 are used to scoop up the scum that has entered the shell 1. When the scooping net frame 56 rotates to the top of the inclined side plate 4, the scum inside the scooping net frame 56 is poured onto the surface of the guide plate 6 and then discharged along the surface of the guide plate 6.

[0030] The rinsing assembly 7 includes an L-shaped tube 71 fixed to the upper surface of the guide plate 6. Multiple nozzles 72 are fixed to the side wall of the L-shaped tube 71, and the nozzles 72 are inclined toward the retrieval net frame 56.

[0031] In this embodiment, the L-shaped pipe 71 is connected to a water pump. Water is pumped into the L-shaped pipe 71 and then sprayed out from the nozzle 72. The water sprayed from the nozzle 72 is used to rinse the retrieval net frame 56 to prevent residual scum from remaining in the retrieval net frame 56.

[0032] A vertical baffle plate 8 is fixed on the upper surface of the guide plate 6 near the outer shell 1.

[0033] When the spray nozzle 72 is used to rinse the salvage net frame 56, the baffle plate 8 can prevent the rinsing water and scum from entering the interior of the outer shell 1.

[0034] The feeding assembly 9 includes a feeding shaft 91 that is rotatably connected to the side wall of the housing 1 via a bearing. Multiple mesh plates 92 are fixed at equal intervals on the outer side wall of the feeding shaft 91. A third motor that drives the feeding shaft 91 to rotate is fixed outside the housing 1.

[0035] In this embodiment, the third motor is externally sealed. After the third motor is started, it drives the feeding shaft 91 and the screen plate 92 to rotate. The screen plate 92 is used to scrape the scum on the water surface towards the dredging component 5, thereby improving the dredging effect.

[0036] Working principle: During installation, the outer casing 1 is mounted on top of the sewage tank, ensuring that the bottom of the retrieval component 5 is below the water surface (e.g., Figure 1 As shown, during use, the first motor, the second motor, and the third motor are started. The first motor drives the propeller 33 to rotate, accelerating the flow of sewage into the outer shell 1. The third motor drives the screen plate 92 to rotate, using the screen plate 92 to scrape the scum on the water surface towards one side of the scooping component 5. The second motor drives the multiple scooping net frames 56 of the scooping component 5 to rotate, thereby using the scooping net frames 56 to scoop the scum that has entered the outer shell 1. When the scooping net frame 56 rotates to the top of the inclined side plate 4, the scum inside the scooping net frame 56 is poured onto the surface of the guide plate 6 and then discharged along the surface of the guide plate 6. Then, the water sprayed from the nozzle 72 is used to rinse the scooping net frame 56 to avoid residual scum inside the scooping net frame 56.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A scum removal device, comprising a shell (1), characterized in that: One side of the outer shell (1) is open. A water guide groove (2) is provided at the bottom of the outer shell (1) away from its open side. A water pushing component (3) is installed inside the water guide groove (2). Two symmetrical inclined side plates (4) are fixed on the top of the outer shell (1) and above the water guide groove (2). A rotating salvage component (5) is installed between the two inclined side plates (4) and the inner wall of the outer shell (1). A material guide plate (6) is fixed on the top of the outer shell (1) and near the salvage component (5). A rinsing component (7) is installed on the upper surface of the material guide plate (6). A material feeding component (9) is installed inside the outer shell (1) on the side away from the salvage component (5).

2. The scum removal device according to claim 1, characterized in that: The water-pushing assembly (3) includes a sealing cover (31) fixed inside the water guide channel (2). The bottom wall of the sealing cover (31) is rotatably connected to multiple vertical shafts (32) through a sealing bearing. The bottom ends of the multiple vertical shafts (32) are all fixedly connected to propellers (33), and the top ends of the multiple vertical shafts (32) are all fixedly connected to driven bevel gears (34). A horizontal shaft (35) is rotatably connected inside the sealing cover (31). A driving bevel gear (36) is fixed on the surface of the horizontal shaft (35) and near each driven bevel gear (34). The driving bevel gear (36) meshes with the corresponding driven bevel gear (34). A first motor that drives the horizontal shaft (35) to rotate is installed inside the sealing cover (31).

3. The scum removal device according to claim 2, characterized in that: The top of the sealing cover (31) is designed with an arc surface.

4. The scum removal device according to claim 1, characterized in that: The salvage assembly (5) includes a drive shaft (51) and a driven shaft (52). The drive shaft (51) is rotatably connected to two inclined side plates (4) via bearings. The driven shaft (52) is rotatably connected to the inner wall of the outer shell (1) via bearings. Drive sprockets (53) are fixed on both ends of the drive shaft (51). Drive sprockets (54) are fixed on both ends of the driven shaft (52). Chains (55) are meshed on the surfaces of the drive sprockets (53) and driven sprockets (54) on the same side. Multiple salvage net frames (56) are fixedly connected between the two chains (55). A second motor that drives the drive shaft (51) to rotate is fixed on the top of the inclined side plate (4).

5. A scum removal device according to claim 4, characterized in that: The rinsing assembly (7) includes an L-shaped tube (71) fixed to the upper surface of the guide plate (6), and a plurality of nozzles (72) are fixed to the side wall of the L-shaped tube (71), the nozzles (72) being inclined toward the retrieval net frame (56).

6. The scum removal device according to claim 1, characterized in that: A vertical baffle plate (8) is fixed on the upper surface of the guide plate (6) near the outer shell (1).

7. A scum removal device according to claim 1, characterized in that: The feeding assembly (9) includes a feeding shaft (91) that is rotatably connected to the side wall of the housing (1) via a bearing. Multiple mesh plates (92) are fixed at equal intervals on the outer side wall of the feeding shaft (91). A third motor that drives the feeding shaft (91) to rotate is fixed outside the housing (1).

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