Sand setting device for sewage treatment

Abstract

The utility model discloses a sand setting device for sewage treatment, which relates to the technical field of sewage treatment, and comprises a support frame, the left part of the upper surface of the support frame is fixedly connected with a sand setting box I, and the inner cavity of the left part of the sand setting box I is fixedly connected with a flow guide component; an inner cavity of the right part of the first sand settling box is fixedly connected with a conveying assembly, the conveying assembly is located on the right side of the flow guide assembly, and the right side of the first sand settling box is fixedly connected with a second sand settling box. According to the sand settling device for sewage treatment, sewage can enter the inner cavity of the first sand settling box under the action of the water inlet, then water flow can be buffered under the action of the first flow guide inclined plate, and then the water flow can be further buffered and shunted under the action of the shunting pipe and the shunting plate, so that the sand settling effect is improved. And meanwhile, the stability of the water flow velocity is improved, so that the safety during use is improved.

Description

Technical Field

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

[0002] A grit chamber is a pretreatment unit that uses physical methods to separate sand particles from wastewater. Its function is to separate particles with a relative density greater than 1.5 and a particle size greater than 0.2 from wastewater. Grit chambers are generally installed before lifting equipment and treatment facilities to protect pumps and pipes from wear, prevent blockage of subsequent structures, and reduce the volume of sludge treatment structures. Existing grit chambers are generally divided into static grit chambers and rotary centrifugal grit chambers. Static grit chambers require a longer time, so rotary centrifugal grit chambers are more commonly used.

[0003] Chinese patent document CN110801672B discloses a grit removal device for sewage treatment, which relates to the field of sewage treatment technology. A No. 1 outlet pipe is fixedly inserted into the upper end of the right side wall of the tank. A feeding mechanism is provided on the upper side of the left side wall of the tank. A flow guiding mechanism is provided above the inside of the tank. A centrifugal mechanism is provided below the flow guiding mechanism. A sand discharge mechanism is provided below the centrifugal mechanism. The sand discharge box in the sand discharge mechanism is fixed to the lower end of the right side outer wall of the tank. The feeding mechanism is fixed on the left side wall of the tank. This allows for preliminary filtration of sewage. Larger sand and gravel inside the sewage are retained in the feeding box. The sand and gravel entering the tank flow to the blades via the flow guiding mechanism. Then, centrifugal force causes lighter fine sand to adhere to the inner wall of the tank and move downwards with the inner wall, remaining inside the tank. The guide plate in the sand discharge mechanism can block the shaking caused by the rotation of the blades, thereby increasing the stability of the sand and gravel. This invention has the advantages of reasonable design and low manufacturing cost.

[0004] The existing technology has the following problems:

[0005] When using a grit chamber for wastewater treatment, the large flow of wastewater can easily damage the device and affect its stability. Furthermore, it is not convenient to adjust the height of the conveying pipe according to the different positions of solid sediments inside the sedimentation tank. Utility Model Content

[0006] This invention provides a grit removal device for wastewater treatment to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A grit settling device for wastewater treatment includes a support frame. A first grit settling box is fixedly connected to the left portion of the upper surface of the support frame. A flow guiding component is fixedly connected to the inner cavity of the left portion of the first grit settling box. A conveying component is fixedly connected to the inner cavity of the right portion of the first grit settling box, and the conveying component is located to the right of the flow guiding component. A second grit settling box is fixedly connected to the right side of the first grit settling box. The lower surface of the second grit settling box is fixedly connected to the right portion of the upper surface of the support frame. A drain outlet is fixedly connected to the right side of the second grit settling box.

[0009] Preferably, the flow guiding component includes a water inlet, the lower surface of which is fixedly connected to the upper surface of the sedimentation tank, an L-shaped partition is fixedly connected to the inner cavity of the sedimentation tank, and two symmetrical diversion components are fixedly connected to the left side of the L-shaped partition. The outer walls of the two diversion components are respectively fixedly connected to the inner cavity of the left part of the sedimentation tank.

[0010] Preferably, the conveying assembly includes a conveying pipe, the outer wall of which is inserted into the inner cavity of the right part of the movable frame, a water pump is fixedly connected to the upper surface of the conveying pipe, a U-shaped conveying pipe is fixedly connected to the upper surface of the water pump, the outer wall of the left part of the U-shaped conveying pipe is movably sleeved with the inner cavity of the first settling tank, and the outer wall of the right part of the U-shaped conveying pipe is movably sleeved with the inner cavity of the second settling tank.

[0011] Preferably, the bottom of the inner cavity of the left part of the sedimentation tank is fixedly connected to a flow guide plate two, and the flow guide plate two is located directly below the two diversion components. The inner cavity of the right part of the sedimentation tank is fixedly connected to a sedimentation tank, and the sedimentation tank is located directly below the L-shaped partition. The left side of the upper part of the sedimentation tank is fixedly connected to the right side of the flow guide plate two.

[0012] Preferably, a hydraulic rod is fixedly connected to the right side of the movable frame, and the output end of the hydraulic rod is fixedly connected to the movable frame. The right side of the movable frame is fixedly connected to the left side of the water pump.

[0013] Preferably, the inner cavities of the front and rear parts of the movable frame are slidably connected with guide rods, and the two guide rods are located on the front and rear sides of the hydraulic rod, respectively. The upper and lower sides of the two guide rods are fixedly connected to the inner wall of the movable frame.

[0014] Preferably, the two diversion components include two guide plates, the outer walls of the two guide plates are fixedly connected to the inner cavity of the sedimentation tank, the upper surfaces of the two guide plates are provided with a plurality of diversion pipes, and the upper surfaces of the opposite portions of the two guide plates are fixedly connected with three diversion plates, the side of the diversion plate away from the guide plate is fixedly connected to the inner cavity of the sedimentation tank.

[0015] Preferably, a guide frame is fixedly connected to the inner cavity of the sedimentation tank 2, the inner cavity of the upper part of the guide frame is inserted into the outer wall of the right part of the U-shaped conveying pipe, a centrifugal sedimentation assembly is fixedly connected to the right side of the guide frame, and the right side of the centrifugal sedimentation assembly is fixedly connected to the left side of the drain outlet.

[0016] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0017] 1. This utility model provides a grit removal device for sewage treatment. Through the inlet, sewage can enter the inner cavity of the grit removal tank. Then, through the action of the first guide plate, the water flow can be buffered. Then, under the action of the diversion pipe and the diversion plate, the water flow can be further buffered and diverted, thereby improving the stability of the device and the stability of the water flow velocity, thus improving the safety during use. Then, under the action of the second guide plate below, the sewage can enter the interior of the sedimentation tank for sedimentation. In this way, under the action of the second guide plate and the sedimentation tank, the settled sand and gravel can be fully discharged.

[0018] 2. This utility model provides a grit settling device for sewage treatment. Through the action of a hydraulic rod, the moving frame can drive the water pump to move downward, thereby moving the conveying pipe downward. During use, the height can be adjusted according to the different positions of solid sedimentation inside the sedimentation tank, thereby improving the efficiency of use. Through the action of the guide frame, water can enter the inner cavity of the centrifugal grit settling component. Then, under the action of the motor and stirring rod inside the centrifugal grit settling component, the sand in the water can quickly settle to the bottom, thus facilitating grit settling. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural schematic diagram of the sedimentation tank II of this utility model;

[0021] Figure 3 This is a cross-sectional structural schematic diagram of the sedimentation tank of this utility model;

[0022] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the structure of the current splitter component of this utility model.

[0024] In the diagram: 1. Support frame; 2. Sedimentation tank one; 3. Flow guiding assembly; 4. Conveying assembly; 5. Sedimentation tank two; 6. Drain outlet; 31. Inlet; 32. Diversion assembly; 321. Flow guiding inclined plate one; 322. Diversion pipe; 323. Diversion plate; 33. Flow guiding inclined plate two; 34. Sedimentation tank; 35. L-shaped baffle; 41. Conveying pipe; 42. Water pump; 43. U-shaped conveying pipe; 44. Hydraulic rod; 45. Moving frame; 46. Guide rod; 51. Flow guiding frame; 52. Centrifugal sedimentation assembly. Detailed Implementation

[0025] 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.

[0026] like Figure 1 As shown, a grit settling device for sewage treatment includes a support frame 1. A grit settling box 2 is fixedly connected to the left part of the upper surface of the support frame 1. A flow guiding component 3 is fixedly connected to the inner cavity of the left part of the grit settling box 2. A conveying component 4 is fixedly connected to the inner cavity of the right part of the grit settling box 2 and the conveying component 4 is located to the right of the flow guiding component 3. A grit settling box 5 is fixedly connected to the right side of the grit settling box 2. The lower surface of the grit settling box 5 is fixedly connected to the right part of the upper surface of the support frame 1. A drain outlet 6 is fixedly connected to the right side of the grit settling box 5.

[0027] Through the action of the flow guiding component 3, the sewage can be stably settled to the bottom of the inner cavity of the sedimentation tank 2. Then, under the action of the conveying component 4, the settled water can be transported to the inner cavity of the sedimentation tank 5. The sand and gravel settled in the inner cavity of the sedimentation tank 2 are discharged through the lower sand discharge port. The water transported to the inner cavity of the sedimentation tank 5 undergoes further sedimentation under the action of the centrifugal sedimentation component inside the sedimentation tank 5.

[0028] like Figure 2 As shown, a guide frame 51 is fixedly connected to the inner cavity of the sedimentation tank 2 5. The inner cavity of the upper part of the guide frame 51 is inserted into the outer wall of the right part of the U-shaped conveying pipe 43. A centrifugal sedimentation assembly 52 is fixedly connected to the right side of the guide frame 51. The right side of the centrifugal sedimentation assembly 52 is fixedly connected to the left side of the drain outlet 6.

[0029] The guide frame 51 allows water to enter the inner cavity of the centrifugal sedimentation assembly 52. ​​Then, under the action of the motor and stirring rod inside the centrifugal sedimentation assembly 52, the sand in the water can quickly settle to the bottom, thus facilitating sedimentation.

[0030] like Figure 3As shown, the flow guiding component 3 includes an inlet 31, the lower surface of which is fixedly connected to the upper surface of the sedimentation tank 2. An L-shaped baffle 35 is fixedly connected to the inner cavity of the sedimentation tank 2. Two symmetrical diversion components 32 are fixedly connected to the left side of the L-shaped baffle 35. The outer walls of the two diversion components 32 are fixedly connected to the inner cavity of the left part of the sedimentation tank 2. A second flow guiding plate 33 is fixedly connected to the bottom of the inner cavity of the left part of the sedimentation tank 2, and the second flow guiding plate 33 is located directly below the two diversion components 32. A sedimentation tank 34 is fixedly connected to the inner cavity of the right part of the sedimentation tank 2, and the sedimentation tank 34 is located directly below the L-shaped baffle 35. The left side of the upper part of the sedimentation tank 34 is fixedly connected to the right side of the second flow guiding plate 33.

[0031] Through the inlet 31, sewage can enter the inner cavity of the sedimentation tank 2. Then, under the action of the two diversion components 32, the sewage is diverted. Next, under the action of the lower guide plate 33, the sewage can enter the interior of the sedimentation tank 34 for sedimentation. Under the action of the guide plate 33 and the sedimentation tank 34, the settled sand and gravel can be fully discharged.

[0032] like Figure 4 As shown, the conveying assembly 4 includes a conveying pipe 41, the outer wall of which is inserted into the inner cavity of the right part of the movable frame 45, a water pump 42 is fixedly connected to the upper surface of the conveying pipe 41, a U-shaped conveying pipe 43 is fixedly connected to the upper surface of the water pump 42, the outer wall of the left part of the U-shaped conveying pipe 43 is movably sleeved with the inner cavity of the first sedimentation tank 2, and the outer wall of the right part of the U-shaped conveying pipe 43 is movably sleeved with the inner cavity of the second sedimentation tank 5; a hydraulic rod 44 is fixedly connected to the right side of the movable frame 45, the output end of the hydraulic rod 44 is fixedly connected to the movable frame 45, and the right side of the movable frame 45 is fixedly connected to the left side of the water pump 42;

[0033] The hydraulic rod 44 enables the moving frame 45 to drive the water pump 42 downward, thereby allowing the conveying pipe 41 to move downward. This allows for height adjustment based on the different positions of solid sedimentation inside the sedimentation tank 34, thus improving efficiency.

[0034] Guide rods 46 are slidably connected to the inner cavities of the front and rear parts of the movable frame 45, and the two guide rods 46 are located on the front and rear sides of the hydraulic rod 44 respectively. The upper and lower sides of the two guide rods 46 are fixedly connected to the inner wall of the movable frame 45 respectively.

[0035] The function of the guide rod 46 is to restrict the movement of the movable frame 45, thereby playing a guiding role.

[0036] like Figure 5As shown, the two diversion components 32 include two guide plates 321. The outer walls of the two guide plates 321 are fixedly connected to the inner cavity of the sedimentation tank 2. The upper surfaces of the two guide plates 321 are provided with several diversion pipes 322. The upper surfaces of the opposite parts of the two guide plates 321 are fixedly connected with three diversion plates 323. The side of the diversion plate 323 away from the guide plate 321 is fixedly connected to the inner cavity of the sedimentation tank 2.

[0037] The flow is buffered by the guide plate 321, and then further buffered and divided by the diversion pipe 322 and the diversion plate 323, thereby improving the stability of the device and the stability of the water flow velocity, thus improving the safety during use.

[0038] The working principle of this utility model is as follows: Wastewater enters the inner cavity of the sedimentation tank 2 through the inlet 31. The flow is then buffered by the guide plate 321. Further buffering and diversion by the diversion pipe 322 and diversion plate 323 improves the stability of the device and the stability of the water flow velocity, thus enhancing safety during use. Next, the wastewater enters the sedimentation tank 34 through the lower guide plate 33 for sedimentation. Finally, the moving frame 45 is moved by the hydraulic rod 44. The pump 42 can move downwards, thereby moving the conveying pipe 41 downwards. During use, the position of the conveying pipe 41 can be adjusted according to the different positions of solid sedimentation inside the sedimentation tank 34. Then, through the action of the pump 42, the water flow above can enter the inner cavity of the guide frame 51 through the conveying pipe 41 and the U-shaped conveying pipe 43. Then, through the action of the guide frame 51, the water flow can enter the inner cavity of the centrifugal sedimentation component 52. Then, under the action of the motor and stirring rod inside the centrifugal sedimentation component 52, the sand in the water flow can quickly settle to the bottom, thus facilitating sedimentation.

[0039] 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. A grit device for sewage treatment comprising a support frame (1) characterised in that: The left part of the upper surface of the support frame (1) is fixedly connected with a sand sink one (2), the inner cavity of the left part of the sand sink one (2) is fixedly connected with a flow guide assembly (3), the inner cavity of the right part of the sand sink one (2) is fixedly connected with a conveying assembly (4) and the conveying assembly (4) is located at the right side of the flow guide assembly (3), the right side of the sand sink one (2) is fixedly connected with a sand sink two (5), the lower surface of the sand sink two (5) is fixedly connected with the right part of the upper surface of the support frame (1), and the right side of the sand sink two (5) is fixedly connected with a drain port (6). The flow guide assembly (3) comprises a water inlet (31), the lower surface of the water inlet (31) is fixedly connected with the upper surface of the sand sink one (2), the inner cavity of the sand sink one (2) is fixedly connected with an L-shaped partition plate (35), the left side of the L-shaped partition plate (35) is fixedly connected with two symmetrical flow distribution assemblies (32), and the outer walls of the two flow distribution assemblies (32) are fixedly connected with the inner cavities of the left parts of the sand sink one (2) respectively. The conveying assembly (4) comprises a conveying pipe (41), the outer wall of the conveying pipe (41) is inserted into the inner cavity of the right part of a moving frame (45), the upper surface of the conveying pipe (41) is fixedly connected with a water pump (42), the upper surface of the water pump (42) is fixedly connected with a U-shaped conveying pipe (43), the outer wall of the left part of the U-shaped conveying pipe (43) is movably sleeved with the inner cavity of the sand sink one (2), and the outer wall of the right part of the U-shaped conveying pipe (43) is movably sleeved with the inner cavity of the sand sink two (5).

2. A grit removal device for sewage treatment according to claim 1, characterised in that: The inner cavity bottom of the left part of the sand sink one (2) is fixedly connected with a flow guide inclined plate two (33), and the flow guide inclined plate two (33) is located directly below the two flow distribution assemblies (32), the inner cavity of the right part of the sand sink one (2) is fixedly connected with a sedimentation tank (34), and the sedimentation tank (34) is located directly below the L-shaped partition plate (35), and the left side of the upper part of the sedimentation tank (34) is fixedly connected with the right side of the flow guide inclined plate two (33).

3. A grit removal device for sewage treatment according to claim 1, characterised in that: The right side of the moving frame (45) is fixedly connected with a hydraulic rod (44), the output end of the hydraulic rod (44) is fixedly connected with the moving frame (45), and the right side of the moving frame (45) is fixedly connected with the left side of the water pump (42).

4. A grit removal device for sewage treatment according to claim 3, characterised in that: The inner cavities of the front and rear parts of the moving frame (45) are slidably connected with guide rods (46), and the two guide rods (46) are located on the front and rear sides of the hydraulic rod (44) respectively, and the upper and lower sides of the two guide rods (46) are fixedly connected with the inner walls of the moving frame (45) respectively.

5. A grit removal device for sewage treatment according to claim 1, characterised in that: The two flow distribution assemblies (32) comprise two flow guide inclined plates one (321), the outer walls of the two flow guide inclined plates one (321) are fixedly connected with the inner cavities of the sand sink one (2) respectively, the upper surfaces of the two flow guide inclined plates one (321) are all provided with a plurality of flow distribution pipes (322), the upper surfaces of the opposite parts of the two flow guide inclined plates one (321) are all fixedly connected with three flow distribution plates (323), and the sides, away from the flow guide inclined plates one (321), of the flow distribution plates (323) are fixedly connected with the inner cavities of the sand sink one (2).

6. A grit removal device for sewage treatment according to claim 1, characterised in that: The inner cavity of the sand box two (5) is fixedly connected with a flow guide frame (51), the inner cavity of the upper part of the flow guide frame (51) is inserted with the outer wall of the right part of the U-shaped conveying pipe (43), the right side of the flow guide frame (51) is fixedly connected with a centrifugal sand setting assembly (52), and the right side of the centrifugal sand setting assembly (52) is fixedly connected with the left side of the water outlet (6).

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