Concrete sedimentation tank

Abstract

The utility model discloses a concrete sedimentation tank. The concrete sedimentation tank comprises a sedimentation tank and a filter screen, after sedimentation is completed, the main tank body and the auxiliary tank body are separated through the outer frame and the baffle, and clear water at the upper part in the separated main tank body can be directly pumped for use, so that impurities filtered by the filter screen are prevented from causing turbid water again during water pumping, and impurities intercepted on the filter screen are prevented from being blocked after the filter screen moves to the auxiliary tank body. The four sets of electric hydraulic rods are lifted, the filter screen is driven to be in a front-low and rear-high shape through different extending heights of the four sets of electric hydraulic rods, sewage is discharged manually or through equipment by opening the front door of the inner frame, the sewage discharging process and the water pumping process can be synchronously carried out, and pumping of clarified water in the main tank body cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete sedimentation tanks, in particular to a concrete sedimentation tank. Background Art

[0002] A sedimentation tank is a structure that removes suspended matter from water through sedimentation. Currently, after cleaning a concrete mixer truck, a large amount of concrete will be mixed in its liquid. Usually, in order to recycle it, it needs to be passed to a sedimentation tank for sedimentation, and then filtered through a filter screen for sand and gravel. After purification by sedimentation, the water can be reused. For example, there is a public technology on the market that proposes a concrete sedimentation tank. Its use process is as follows: first, the sewage is injected into the sedimentation tank from the inside of the L-shaped filter screen. After a period of sedimentation, the debris in the sewage is settled on the surface of the L-shaped filter screen. At this time, the pump is started to pump water, and the water flows in the direction of the pump. Under the action of the water flow, the debris in the sewage will accumulate on the surface of the L-shaped filter screen and will not settle. The water in the sedimentation tank diffuses inside the sedimentation tank, thereby preventing the water that has been precipitated in the sedimentation tank from becoming turbid again. After the pump has drained all the water, the sealing door is opened, and then the power supply of the first motor is started. The threaded rod is driven to rotate by the first motor, so that the scraper threadedly connected to the threaded rod is lowered to the bottom side and fits the surface of the L-shaped filter screen. Then the power supply of the second motor is started, so that the shaft drives the gear to rotate. Under the action of the rack meshing with the gear, the moving plate starts to move, so that the debris inside the sedimentation tank is discharged from the sewage outlet. In actual applications, the clarified water after sedimentation is usually in the upper layer, while in the above-mentioned public technology, the debris on the filter screen is still in the same cavity with the water. When pumping water, the flow of water will inevitably flush the debris on the filter screen, which will still cause turbid water.

[0003] In order to solve the above problems, it is necessary to improve the structure of the concrete sedimentation tank. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a concrete sedimentation tank.

[0005] To achieve the above object, the utility model adopts the following technical solutions: A concrete sedimentation tank, comprising a sedimentation tank and a filter screen. The sedimentation tank is composed of a secondary tank body and a main tank body distributed front and rear. The inner side wall of the sedimentation tank is connected with an outer frame through a rolling structure. Sealing strips are arranged on both the left and right walls of the outer frame. The top view projection of the outer frame is in a square shape. A translation driving structure for driving the outer frame to move back and forth is arranged on the right wall of the sedimentation tank. An inner frame is arranged on the inner side wall of the outer frame through a lifting driving structure. The top view projection of the inner frame is in a "匚" shape with the opening of the "匚" shape facing the secondary tank body. A front door is rotatably connected to the inner side wall of the inner frame near the front end. The front door is fixed to the inner frame through a bolt. The filter screen is fixedly connected to the inner side wall of the inner frame and is located near the lower wall. A partition structure for separating the main tank body and the secondary tank body is arranged on the lower wall of the outer frame near the rear wall.

[0006] As a further description of the above technical solution:

[0007] The rear wall of the secondary tank body is in communication with the front wall of the main tank body. The upper edge opening of the secondary tank body is flush with the upper edge opening of the main tank body. The horizontal height of the lower wall of the secondary tank body is higher than that of the lower wall of the main tank body. The lower wall of the secondary tank body and the end far from the main tank body are supported by two groups of support feet. The top view projection dimensions of the inner cavity of the secondary tank body and the inner cavity of the main tank body are the same.

[0008] As a further description of the above technical solution:

[0009] The horizontal heights of the lower walls of the inner frame and the outer frame are the same, and the horizontal heights of the lower walls of the inner frame and the outer frame are both higher than the inner lower wall of the secondary tank body.

[0010] As a further description of the above technical solution:

[0011] The rolling structure includes four groups of rollers and two groups of arc grooves. The two groups of arc grooves are both arranged on the upper wall of the sedimentation tank and are respectively close to the left and right side walls. The four groups of rollers are respectively rotatably connected to the upper wall of the outer frame through a group of brackets and are arranged in pairs of two, respectively close to the left and right sides of the outer frame. Two groups of rollers on the same side among the four groups of rollers are respectively in rolling connection with the inner side wall of a group of arc grooves. The outer frame is in rolling connection with the sedimentation tank through the four groups of rollers.

[0012] As a further description of the above technical solution:

[0013] The translation drive structure includes a motor, a screw, a fixed plate and a connecting seat. The motor is fixedly connected to the right wall of the sedimentation tank and close to the rear wall. The screw is rotatably connected to the right wall of the sedimentation tank and is located above the motor through two sets of rotating seats. The motor drives the screw to rotate through a synchronous belt and two sets of synchronous wheels. The fixed plate is fixedly connected to the upper wall of the outer frame and close to the right wall. The right end of the fixed plate extends toward the right wall of the outer frame. The connecting seat is threadedly connected to the outer wall of the screw and is located between the two sets of rotating seats. The upper wall of the connecting seat is fixedly connected to an end of the fixed plate extending to the right side of the outer frame.

[0014] As a further description of the above technical solution:

[0015] The lifting drive structure includes four groups of electric hydraulic rods, which are arranged in pairs of two on the inner left wall and the inner right wall of the outer frame respectively. The two groups on the front side of the four groups of electric hydraulic rods are fixedly connected to the outer wall of the outer frame, and the two groups on the rear side of the four groups of electric hydraulic rods are rotatably connected to the outer wall of the outer frame. Two groups of columns are fixedly connected to the upper wall of the inner frame and close to the left and right sides respectively, and the ends of the four groups of columns away from the inner frame are rotatably connected to the ends of the extended shafts of the electric hydraulic rods through a group of swivel pins.

[0016] As a further description of the above technical solution:

[0017] The partition structure includes a baffle and a sealing gasket. The baffle is fixedly connected to the lower wall of the outer frame and the rear wall of the baffle is flush with the rear wall of the outer frame. The sealing gasket is fixedly connected to the front wall of the baffle. The left and right ends of the sealing gasket are respectively slidably connected to the inner left wall and the inner right wall of the main pool body.

[0018] The utility model has the following beneficial effects:

[0019] 1. Compared with the prior art, after sedimentation is completed, the main tank body and the auxiliary tank body are separated by an outer frame and a baffle. After separation, the clean water in the upper part of the main tank body can be directly pumped out for use, avoiding the debris filtered out by the filter net causing turbidity in the water again when pumping.

[0020] 2. Compared with the prior art, this concrete sedimentation tank intercepts debris on the filter screen. After the filter screen moves to the auxiliary tank body, it is lifted up by four sets of electric hydraulic rods, and the filter screen is driven to be low in the front and high in the back by the different extension heights of the four sets of electric hydraulic rods. Then, by opening the front door of the inner frame, sewage is discharged manually or through equipment. The sewage discharge process and the water pumping process can be carried out simultaneously without affecting the extraction of clarified water inside the main tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a concrete sedimentation tank proposed by the utility model;

[0022] Figure 2 A concrete sedimentation tank proposed by the utility model Figure 1 A partial enlarged view of the middle A;

[0023] Figure 3 A concrete sedimentation tank proposed by the utility model Figure 1 A partial enlarged view of point B in the middle;

[0024] Figure 4 A partial sectional view of the internal structure of a concrete sedimentation tank proposed by the utility model;

[0025] Figure 5 It is a partial cross-sectional schematic diagram of the outer frame, inner frame, electric hydraulic rod and column connection structure of a concrete sedimentation tank proposed by the utility model;

[0026] Figure 6 This is a schematic diagram of the top view structure of the inner frame of a concrete sedimentation tank proposed by the utility model when the front door is closed;

[0027] Figure 7 This is a schematic diagram of the top structure of the inner frame of a concrete sedimentation tank proposed by the utility model when the front door is open.

[0028] Legend:

[0029] 1. Main tank body; 2. Auxiliary tank body; 3. Support feet; 4. Filter screen; 5. Outer frame; 6. Inner frame; 7. Bracket; 8. Roller; 9. Arc groove; 10. Front door; 11. Motor; 12. Rotating seat; 13. Screw; 14. Fixed plate; 15. Connecting seat; 16. Electric hydraulic rod; 17. Column; 18. Baffle; 19. Sealing gasket. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figures 1 to 7The utility model provides a concrete sedimentation tank: including a sedimentation tank and a filter screen 4, the sedimentation tank is composed of an auxiliary tank body 2 and a main tank body 1 distributed in front and back, the rear wall of the auxiliary tank body 2 is connected with the front wall of the main tank body 1, the upper edge of the auxiliary tank body 2 is flush with the upper edge of the main tank body 1, the lower wall of the auxiliary tank body 2 is higher than the lower wall of the main tank body 1, the lower wall of the auxiliary tank body 2 and the end located away from the main tank body 1 are supported by two groups of supporting feet 3, and the inner cavity of the auxiliary tank body 2 is consistent with the inner cavity of the main tank body 1 in top view projection size.

[0032] In order to ensure that the outer frame 5 can move forward and backward smoothly, the inner wall of the sedimentation tank is connected to the outer frame 5 by rolling structure, and the left and right walls of the outer frame 5 are provided with sealing strips. The outer frame 5 is projected in a mouth shape when viewed from above, and the rolling structure includes four groups of rollers 8 and two groups of arc grooves 9. The two groups of arc grooves 9 are arranged on the upper wall of the sedimentation tank and are close to the left and right side walls respectively. The four groups of rollers 8 are rotatably connected to the upper wall of the outer frame 5 through a group of brackets 7 respectively, and are in pairs of two, close to the left and right sides of the outer frame 5 respectively. The two groups of rollers 8 located on the same side of the four groups of rollers 8 are respectively connected to the inner wall of a group of arc grooves 9 by rolling. The outer frame 5 is connected to the sedimentation tank by rolling through the four groups of rollers 8. The arc grooves 9 are used to limit the position of the rollers 8 to prevent the rollers 8 from falling off. Through the four groups of rollers 8, the outer frame 5 can be moved forward and backward more conveniently, especially after the filter screen 4 carries a lot of debris, the four groups of rollers 8 effectively improve the convenience of movement of the outer frame 5.

[0033] In order to realize the forward and backward movement of the outer frame 5, a translation driving structure for driving the outer frame 5 to move forward and backward is provided on the right wall of the sedimentation tank. The translation driving structure includes a motor 11, a screw 13, a fixing plate 14 and a connecting seat 15. The motor 11 is fixedly connected to the right wall of the sedimentation tank and is close to the rear wall. The screw 13 is rotatably connected to the right wall of the sedimentation tank and is located above the motor 11 through two sets of rotating seats 12. The motor 11 drives the screw 13 to rotate through a synchronous belt and two sets of synchronous wheels. The fixing plate 14 is fixedly connected to the upper wall of the outer frame 5 and is close to the right wall. The right end of the fixing plate 14 extends toward the right wall of the outer frame 5. The connecting seat 15 5 is threadedly connected to the outer wall of the screw rod 13 and is located between the two groups of rotating seats 12. The upper wall of the connecting seat 15 is fixedly connected to one end of the fixing plate 14 extending to the right side of the outer frame 5. When the motor 11 rotates, the screw rod 13 is driven to rotate through the synchronous belt and the two groups of synchronous wheels. Since the axial movement ability of the screw rod 13 is limited by the two groups of rotating seats 12, it can only rotate. When the screw rod 13 rotates, it drives the connecting seat 15 to move axially along the screw rod 13 through the threaded connection relationship with the connecting seat 15, thereby achieving the purpose of driving the outer frame 5 to move forward and backward. Through the cooperation of the four groups of rollers 8, the outer frame 5 does not need too much driving force when moving;

[0034] For convenient nesting, an inner frame 6 is provided on the inner side wall of the outer frame 5 through a lifting drive structure. The top-down projection of the inner frame 6 is in a U-shape with the opening of the U-shape facing the secondary pond body 2. A front door 10 is rotatably connected to the inner side wall of the inner frame 6 near the front end. The front door 10 is fixed to the inner frame 6 through a bolt. The horizontal heights of the lower walls of the inner frame 6 and the outer frame 5 are the same, and the horizontal heights of the lower walls of the inner frame 6 and the outer frame 5 are both higher than the inner lower wall of the secondary pond body 2. The lifting drive structure includes four sets of electro-hydraulic rods 16. The four sets of electro-hydraulic rods 16 are arranged in pairs of two, respectively, on the left inner wall and the right inner wall of the outer frame 5. The two sets of electro-hydraulic rods 16 at the front side of the four sets are both fixedly connected to the outer wall of the outer frame 5. The two sets of electro-hydraulic rods 16 at the rear side of the four sets are both rotatably connected to the outer wall of the outer frame 5. Two sets of columns 17 are fixedly connected to the upper wall of the inner frame 6 near the left and right sides respectively. The ends of the four columns 17 far from the inner frame 6 are respectively rotatably connected to the end parts of the extending shafts of the electro-hydraulic rods 16 through a set of rotating pins. When the outer frame 5 completely moves into the secondary pond body 2, the sundries on the filter net 4 are separated from the water inside the main pond body 1. At this time, by extending the extending shafts of the four sets of electro-hydraulic rods 16, the inner frame 6 and the filter net 4 can be driven to rise. When the lower wall at the front end of the inner frame 6 is raised to the same height as the upper end of the sedimentation pond, the two sets of electro-hydraulic rods 16 at the front side of the four sets stop operating, and the extending shafts of the remaining two sets of electro-hydraulic rods 16 continue to rise, driving the inner frame 6 and the filter net 4 to form a state of being lower at the front and higher at the rear. At this time, the front door 10 is opened, and the sundries on the filter net 4 can be discharged. The discharging process can use manual operation or a scraping machine already available on the market for scraping out;

[0035] In order to separate the sundries in the water from the water, the filter net 4 is fixedly connected to the inner side wall of the inner frame 6 and is located near the lower wall. In the initial state, the rear wall of the outer frame 5 abuts against the inner rear wall of the main pond body 1. The sewage containing sundries is poured into the filter net 4, and the sundries are intercepted by the filter net 4. The water passes through the meshes of the filter net 4 and enters the main pond body 1 for sedimentation. During the sedimentation process, the motor 11 drives the outer frame 5 to slowly move into the secondary pond body 2, synchronously driving the baffle 18 and the sealing gasket 19 to move forward. When the sedimentation time reaches, the sealing gasket 19 abuts tightly against the inner front wall of the main pond body 1. At this time, the water inside the main pond body 1 is in a clarified state, and the upper clear water can be directly extracted for use. The extraction process is not affected by the sundries, and the discharge of the sundries on the filter net 4 does not affect the water quality inside the main pond body 1;

[0036] In order to prevent the debris on the filter screen 4 from affecting the cleanliness of the pumped water during pumping, a partition structure for separating the main pool body 1 and the auxiliary pool body 2 is provided on the lower wall of the outer frame 5 and near the rear wall. The partition structure includes a baffle 18 and a sealing gasket 19. The baffle 18 is fixedly connected to the lower wall of the outer frame 5 and the rear wall of the baffle 18 is flush with the rear wall of the outer frame 5. The sealing gasket 19 is fixedly connected to the front wall of the baffle 18. The left and right ends of the sealing gasket 19 are respectively slidably connected to the inner left wall and the inner right wall of the main pool body 1. The baffle 18, the sealing gasket 19 and the sealing strips on the left and right side walls of the outer frame 5 are used together to separate the auxiliary pool body 2 and the main pool body 1.

[0037] Working principle: The arc groove 9 is used to limit the position of the roller 8 to prevent the roller 8 from falling off. Through the four groups of rollers 8, the outer frame 5 can be moved back and forth more conveniently, especially when the filter screen 4 carries a lot of debris. The four groups of rollers 8 effectively improve the mobility of the outer frame 5. When the motor 11 rotates, it drives the screw 13 to rotate through the synchronous belt and two groups of synchronous wheels. Since the screw 13 is limited in axial movement by the two groups of rotating seats 12, it can only rotate. When the screw 13 rotates, it drives the connecting seat 15 through the threaded connection relationship with the connecting seat 15 moves along the axial direction of the screw rod 13, thereby achieving the purpose of driving the outer frame 5 to move forward and backward. Through the cooperation of the four groups of rollers 8, the outer frame 5 does not need too much driving force when moving. When the outer frame 5 is completely moved into the auxiliary tank body 2, the debris on the filter screen 4 is separated from the water inside the main tank body 1. At this time, the four groups of electric hydraulic rods 16 extend their shafts to drive the inner frame 6 and the filter screen 4 to rise. When the lower wall of the front end of the inner frame 6 is raised to the same height as the upper end of the sedimentation tank, the two groups on the front side of the four groups of electric hydraulic rods 16 are no longer The remaining two groups of electric hydraulic rods 16 extend their shafts and continue to rise, driving the inner frame 6 and the filter screen 4 to form a state in which the front is low and the back is high. At this time, the front door 10 is opened to discharge the debris on the filter screen 4. The discharge process can be done manually or by using a scraper machine available on the market. In the initial state, the rear wall of the outer frame 5 abuts against the inner rear wall of the main pool body 1, and the sewage containing debris is poured into the filter screen 4, and the debris is intercepted by the filter screen 4. The water passes through the mesh of the filter screen 4 and enters the main pool body 1 for sedimentation. During the process, the motor 11 drives the outer frame 5 to move slowly into the auxiliary pool body 2, and simultaneously drives the baffle 18 and the sealing gasket 19 to move forward. When the sedimentation time is reached, the sealing gasket 19 is pressed against the inner front wall of the main pool body 1. At this time, the water inside the main pool body 1 is in a clarified state, and the clean water on the top can be directly extracted and used. The extraction process is not affected by debris, and the debris on the filter screen 4 does not affect the water quality inside the main pool body 1 when it is discharged. The baffle 18, the sealing gasket 19 and the sealing strips on the left and right side walls of the outer frame 5 are used together to separate the auxiliary pool body 2 and the main pool body 1.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A concrete sedimentation tank, characterized in that: It includes a sedimentation tank and a filter screen (4). The sedimentation tank is composed of a secondary tank body (2) and a main tank body (1) distributed front and back. The inner side wall of the sedimentation tank is connected to an outer frame (5) through a rolling structure. Sealing strips are provided on both the left and right walls of the outer frame (5). The top view projection of the outer frame (5) is in a square shape. A translation drive structure for driving the outer frame (5) to move back and forth is provided on the right wall of the sedimentation tank. An inner frame (6) is provided on the inner side wall of the outer frame (5) through a lifting drive structure. The top view projection of the inner frame (6) is in a C shape with the opening of the C shape facing the secondary tank body (2). A front door (10) is rotatably connected to the inner side wall of the inner frame (6) near the front end. The front door (10) is fixed to the inner frame (6) through a bolt. The filter screen (4) is fixedly connected to the inner side wall of the inner frame (6) and is located near the lower wall. A partition structure for separating the main tank body (1) and the secondary tank body (2) is provided on the lower wall of the outer frame (5) near the rear wall.

2. A concrete sedimentation tank according to claim 1, characterized in that: The rear wall of the secondary tank body (2) is in communication with the front wall of the main tank body (1). The upper edge opening of the secondary tank body (2) is flush with the upper edge opening of the main tank body (1). The horizontal height of the lower wall of the secondary tank body (2) is higher than that of the lower wall of the main tank body (1). The lower wall of the secondary tank body (2) at the end far from the main tank body (1) is supported by two groups of support feet (3). The top view projection dimensions of the inner cavity of the secondary tank body (2) and the inner cavity of the main tank body (1) are the same.

3. A concrete sedimentation tank according to claim 2, characterized in that: The horizontal heights of the lower walls of the inner frame (6) and the outer frame (5) are the same, and the horizontal heights of the lower walls of the inner frame (6) and the outer frame (5) are both higher than the inner lower wall of the secondary tank body (2).

4. A concrete sedimentation tank according to claim 3, characterized in that: The rolling structure includes four groups of rollers (8) and two groups of arc grooves (9). The two groups of arc grooves (9) are both provided on the upper wall of the sedimentation tank and are respectively close to the left and right side walls. The four groups of rollers (8) are respectively rotatably connected to the upper wall of the outer frame (5) through a group of brackets (7) and are in pairs of two, respectively close to the left and right sides of the outer frame (5). Among the four groups of rollers (8), the two groups of rollers (8) on the same side are respectively in rolling connection with the inner side wall of a group of arc grooves (9). The outer frame (5) is in rolling connection with the sedimentation tank through the four groups of rollers (8).

5. A concrete sedimentation tank according to claim 4, characterized in that: The translation drive structure includes a motor (11), a screw rod (13), a fixing plate (14), and a connecting seat (15). The motor (11) is fixedly connected to the right wall of the sedimentation tank and near the rear wall. The screw rod (13) is rotatably connected to the right wall of the sedimentation tank through two groups of rotating seats (12) and is located above the motor (11). The motor (11) drives the screw rod (13) to rotate through a synchronous belt and two groups of synchronous wheels. The fixing plate (14) is fixedly connected to the upper wall of the outer frame (5) and near the right wall. The right end of the fixing plate (14) extends towards the right wall of the outer frame (5). The connecting seat (15) is threadedly connected to the outer wall of the screw rod (13) and is located between the two groups of rotating seats (12). The upper wall of the connecting seat (15) is fixedly connected to the end of the fixing plate (14) extending to the right side of the outer frame (5).

6. A concrete sedimentation tank according to claim 5, characterized in that: The lifting drive structure comprises four groups of electric hydraulic rods (16), the four groups of electric hydraulic rods (16) being arranged in pairs on the inner left wall and the inner right wall of the outer frame (5), the two groups on the front side of the four groups of electric hydraulic rods (16) being fixedly connected to the outer wall of the outer frame (5), the two groups on the rear side of the four groups of electric hydraulic rods (16) being rotatably connected to the outer wall of the outer frame (5), the upper wall of the inner frame (6) being fixedly connected with two groups of columns (17) near the left and right sides, respectively, the ends of the four groups of columns (17) away from the inner frame (6) being rotatably connected to the ends of the shafts protruding from the electric hydraulic rods (16) through a group of rotation pins.

7. A concrete sedimentation tank according to claim 6, characterized in that: The baffle structure comprises a baffle (18) and a sealing gasket (19); the baffle (18) is fixedly connected to the lower wall of the outer frame (5) and the rear wall of the baffle (18) is flush with the rear wall of the outer frame (5); the sealing gasket (19) is fixedly connected to the front wall of the baffle (18); and the left and right ends of the sealing gasket (19) are respectively slidably connected to the inner left wall and the inner right wall of the main pool body (1).

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