Wastewater sedimentation tank for green production of concrete

Abstract

The utility model relates to a wastewater sedimentation tank for green production of concrete, which belongs to the technical field of sedimentation tanks and comprises a sedimentation tank body, the left side of the sedimentation tank body is communicated with a water inlet structure, and the right side of the sedimentation tank body is communicated with a water outlet pipe. According to the wastewater sedimentation tank for green production of concrete, waste slurry water subjected to stone and sand removal through a sand and stone separator is fed into the sedimentation tank body through a water inlet structure, the waste slurry water flows to the filter screen on the left side after entering the sedimentation tank body, and the filter screen on the left side can filter powder, particles and impurities in the waste slurry water; waste slurry water can be filtered multiple times, the filtered waste slurry water flows to the rightmost side of the inner cavity of the sedimentation tank body and then is discharged through the water outlet pipe, powder, particles and impurities in the waste slurry are flocculated and accumulated when the waste slurry is filtered by the three filter screens, and the powder, the particles and the impurities sink to the bottom of the sedimentation tank body under the action of gravity after being accumulated for a period of time. The three filter screens can be dredged and cleaned, so that the sedimentation efficiency of the wastewater sedimentation tank is improved.

Description

Technical Field

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

[0002] When a concrete mixing station is in production, a large amount of waste slurry water will be generated when cleaning the mixing equipment and transportation equipment. A small or medium-sized mixing station with an annual output of 200,000 cubic meters can generate more than 60 cubic meters of waste slurry water every day during normal production. These waste slurry waters contain tidal micro-powders such as cement, fly ash and mineral powder, as well as a large amount of recyclable sand and gravel. In order to achieve green production of concrete, these waste slurry waters are currently usually treated by wastewater treatment devices, and sedimentation tanks are one of the commonly used wastewater treatment facilities.

[0003] For example, Chinese patent CN211486666U discloses a concrete sedimentation tank, including a sedimentation tank body, a drainage port is provided on the sedimentation tank body, a drainage pipe is connected to the drainage port on the outside of the sedimentation tank body, a valve is provided on the drainage pipe, and an interception device for intercepting sand and impurities is provided at the drainage port, and the interception device includes an interception block for blocking the drainage port and a hand pull rod provided on the interception block, and the hand pull rod extends from the interception block to the outside of the sedimentation tank body. When the wastewater is ready to be poured into the concrete sedimentation tank, the hand pull rod is operated to block the drainage port with the interception block, and the sand and impurities in the wastewater are intercepted outside and will not enter the pipe and valve to cause blockage; when the wastewater is left to stand and stratify, the hand pull rod is operated to pull the interception block out of the drainage port, and the clean water will flow out smoothly from the drainage port without affecting the drainage efficiency.

[0004] Although the above patent states that after the wastewater is allowed to stand and stratify, the operator can pull the interception block out of the drain outlet by operating the hand lever, and the clean water will flow out smoothly from the drain outlet without affecting the drainage efficiency, but the wastewater slurry that is used to remove stones and sand by the sand and gravel separator in the sedimentation tank in this patent has a general sedimentation efficiency, which reduces its practicality. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a wastewater sedimentation tank for green production of concrete, which has the advantages of improving the sedimentation efficiency of the wastewater sedimentation tank, and solves the problem that when the waste slurry water of the sand and gravel separator is used to remove stones and sand through the sedimentation tank, the sedimentation efficiency is general, thereby reducing the practicality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wastewater sedimentation tank for green production of concrete, comprising a sedimentation tank body, the left side of the sedimentation tank body is connected to a water inlet structure, the right side of the sedimentation tank body is connected to a water outlet pipe, the left and right sides of the sedimentation tank body are both fixed with mounting frames by bolts, and a connecting mechanism is provided inside the sedimentation tank body;

[0007] The connecting mechanism includes three fixed frames, three filter screens, a U-shaped frame, an electric push rod, a fixed rod and a connecting assembly. The three fixed frames are all arranged inside the sedimentation tank body. The filter screen is fixed inside the fixed frame. The U-shaped frame is fixed to the outside of the sedimentation tank body by bolts. The electric push rod is fixed to the upper surface of the U-shaped frame. The outer side of the electric push rod output shaft passes through the U-shaped frame and extends to the inside. The outer side of the electric push rod output shaft is slidably connected to the inside of the U-shaped frame. The upper surface of the fixed rod is fixedly connected to the outer side of the electric push rod output shaft.

[0008] By adopting this technical solution, the sedimentation efficiency of the wastewater sedimentation tank can be improved.

[0009] Furthermore, the water inlet structure includes a connecting pipe, the outer side of the connecting pipe is connected to a first electromagnetic valve, and the interior of the first electromagnetic valve is connected to a water inlet pipe.

[0010] By adopting this technical solution, the left side of the water inlet pipe can be connected to the discharge pipe, and by closing the first electromagnetic valve, the input of wastewater into the sedimentation tank body can be stopped.

[0011] Furthermore, the connection assembly includes three connection plates, three mounting plates, three cleaning brushes and four discharge structures, and the three connection plates are all fixed on the lower surface of the fixing rod and are equidistantly distributed.

[0012] By adopting this technical solution, the three cleaning brushes can be driven to move up and down by the electric push rod.

[0013] Furthermore, the discharge structure includes a first discharge pipe, the outer side of the first discharge pipe is connected to a second electromagnetic valve, and the inner side of the second electromagnetic valve is connected to the second discharge pipe.

[0014] By adopting this technical solution, the four second electromagnetic valves can be opened separately to discharge the sludge.

[0015] Furthermore, the left and right mounting frames are symmetrically distributed on the left and right sides of the longitudinal center axis of the sedimentation tank body.

[0016] By adopting this technical solution, the sedimentation tank body can be installed at the position where the stator needs to be fixed through the installation frames on the left and right sides.

[0017] Furthermore, the electric push rod is located on the longitudinal center axis of the U-shaped frame.

[0018] By adopting this technical solution, the driving stability of the electric push rod is improved.

[0019] Furthermore, the upper surface of the mounting plate is fixedly connected to the lower surface of the connecting plate, the cleaning brush is fixed on the right side of the mounting plate, and the four discharge structures are all connected to the lower surface of the sedimentation tank body and are equidistantly distributed.

[0020] By adopting this technical solution, three clogged filter screens can be cleared and cleaned by three cleaning brushes.

[0021] Furthermore, the fixing rod moves linearly up and down inside the U-shaped frame.

[0022] By adopting this technical solution, the fixing rod drives the three connecting plates to move linearly up and down inside the U-shaped frame.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] The wastewater sedimentation tank for green concrete production sends the waste slurry water that has been de-stoned and de-sanded by the sand and gravel separator into the sedimentation tank body through the water inlet structure. After entering the sedimentation tank body, the waste slurry water flows to the filter screen on the left. The filter screen on the left can filter the powder, particles and impurities in the waste slurry. The waste slurry water can be filtered multiple times. After filtration, the waste slurry water flows to the rightmost side of the sedimentation tank body cavity, and then is discharged through the outlet pipe. When the three filters are filtered, the powder, particles and impurities in the waste slurry flocculate and accumulate. After accumulating for a period of time, they sink to the bottom of the sedimentation tank body under the action of gravity. By opening the four second solenoid valves in the four discharge structures respectively, the precipitated sludge in the sedimentation tank body can be discharged. By starting the electric push rod to drive the three cleaning brushes to move up and down, the three filters can be dredged and cleaned, thereby improving the sedimentation efficiency of the wastewater sedimentation tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the connection mechanism of the utility model;

[0027] Figure 3 It is a three-dimensional schematic diagram of the U-shaped frame of the utility model.

[0028] In the figure: 1. sedimentation tank body; 2. water inlet structure; 3. water outlet pipe; 4. mounting frame; 5. connecting mechanism; 51. fixing frame; 52. filter screen; 53. U-shaped frame; 54. electric push rod; 55. fixing rod; 56. connecting assembly; 561. connecting plate; 562. mounting plate; 563. cleaning brush; 564. discharge structure. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1 A concrete green production wastewater sedimentation tank in this embodiment includes a sedimentation tank body 1, a water inlet structure 2 is connected to the left side of the sedimentation tank body 1, a water outlet pipe 3 is connected to the right side of the sedimentation tank body 1, and mounting frames 4 are fixed on the left and right sides of the sedimentation tank body 1 by bolts. A connecting mechanism 5 is provided inside the sedimentation tank body 1, and the connecting mechanism 5 can improve the sedimentation efficiency of the wastewater sedimentation tank.

[0031] In this embodiment, the water inlet structure 2 includes a connecting pipe, the outer side of the connecting pipe is connected to a first electromagnetic valve, the interior of the first electromagnetic valve is connected to a water inlet pipe, and the left and right side mounting frames 4 are symmetrically distributed on the left and right sides of the longitudinal center axis of the sedimentation tank body 1.

[0032] See also Figure 2-3 In order to improve the sedimentation efficiency of the wastewater sedimentation tank, in this embodiment, the connecting mechanism 5 includes three fixed frames 51, three filter screens 52, a U-shaped frame 53, an electric push rod 54, a fixed rod 55 and a connecting assembly 56. The three fixed frames 51 are all arranged inside the sedimentation tank body 1, the filter screen 52 is fixed inside the fixed frame 51, the U-shaped frame 53 is fixed to the outside of the sedimentation tank body 1 by bolts, the electric push rod 54 is fixed to the upper surface of the U-shaped frame 53, and the outer side of the output shaft of the electric push rod 54 passes through the U-shaped frame 53 and extends to the inside.

[0033] In this embodiment, the outer side of the output shaft of the electric push rod 54 is slidably connected to the inside of the U-shaped frame 53, and the upper surface of the fixed rod 55 is fixedly connected to the outer side of the output shaft of the electric push rod 54. The waste slurry water that has been de-stoned and de-sanded by the sand and gravel separator is sent into the sedimentation tank body 1 through the water inlet structure 2. After the waste slurry water enters the sedimentation tank body 1, it flows to the filter screen 52 on the left. The filter screen 52 on the left can filter the powder, particles and impurities in the waste slurry, and then flows to the middle filter screen 52 for re-filtration, and then flows to the filter screen 52 on the right for re-filtration. Three filter screens 52 are arranged inside the sedimentation tank body 1, and the waste water is filtered three times by utilizing the flowability of the waste water, which can improve the sedimentation efficiency.

[0034] In this embodiment, the connecting assembly 56 includes three connecting plates 561, three mounting plates 562, three cleaning brushes 563 and four discharge structures 564. The three connecting plates 561 are all fixed on the lower surface of the fixed rod 55 and are equidistantly distributed. The discharge structure 564 includes a first discharge pipe. The outer side of the first discharge pipe is connected to a second electromagnetic valve, which can filter the waste slurry water for multiple times. The filtered waste slurry water flows to the rightmost side of the inner cavity of the sedimentation tank body 1, and then is discharged through the outlet pipe 3. When the three filter nets 52 are filtering, the powder, particles and impurities in the waste slurry are flocculated and accumulated. After accumulating for a period of time, they sink to the bottom of the sedimentation tank body 1 under the action of gravity.

[0035] In this embodiment, the interior of the second solenoid valve is connected to the second discharge pipe, the electric push rod 54 is located on the longitudinal center axis of the U-shaped frame 53, the upper surface of the mounting plate 562 is fixedly connected to the lower surface of the connecting plate 561, the cleaning brush 563 is fixed on the right side of the mounting plate 562, and the four discharge structures 564 are all connected to the lower surface of the sedimentation tank body 1 and are equidistantly distributed, and the fixed rod 55 moves linearly up and down inside the U-shaped frame 53.

[0036] It should be noted that by opening the four second solenoid valves in the four discharge structures 564 respectively, the precipitated sludge inside the sedimentation tank body 1 can be discharged, and by starting the electric push rod 54, the output shaft of the electric push rod 54 drives the fixed rod 55, three connecting plates 561, three mounting plates 562, and three cleaning brushes 563 to move up and down. When the three cleaning brushes 563 move up and down, the three filter screens 52 can be dredged and cleaned, thereby improving the sedimentation efficiency of the wastewater sedimentation tank.

[0037] The working principle of the above embodiment is:

[0038] The waste slurry water after the stone and sand removal by the sand and gravel separator is sent into the sedimentation tank body 1 through the water inlet structure 2. After entering the sedimentation tank body 1, the waste slurry water flows to the filter screen 52 on the left. The filter screen 52 on the left can filter the powder, particles and impurities in the waste slurry, and then flows to the middle filter screen 52 for re-filtration, and then flows to the filter screen 52 on the right for re-filtration. The waste slurry water can be filtered multiple times. The filtered waste slurry water flows to the rightmost side of the inner cavity of the sedimentation tank body 1, and then is discharged through the outlet pipe 3. When the three filter screens 52 are filtering, the powder, particles and impurities in the waste slurry are filtered. The impurities flocculate and accumulate, and after a period of time, they sink to the bottom of the sedimentation tank body 1 under the action of gravity. By opening the four second electromagnetic valves in the four discharge structures 564 respectively, the precipitated sludge inside the sedimentation tank body 1 can be discharged, and by starting the electric push rod 54, the output shaft of the electric push rod 54 drives the fixed rod 55, three connecting plates 561, three mounting plates 562, and three cleaning brushes 563 to move up and down. When the three cleaning brushes 563 move up and down, the three filter screens 52 can be dredged and cleaned, thereby improving the sedimentation efficiency of the wastewater sedimentation tank.

Claims

1. A wastewater sedimentation tank for green production of concrete, comprising a sedimentation tank body (1), characterized in that: The left side of the sedimentation tank body (1) is connected to a water inlet structure (2), the right side of the sedimentation tank body (1) is connected to a water outlet pipe (3), the left and right sides of the sedimentation tank body (1) are both fixed with mounting frames (4) by bolts, and a connecting mechanism (5) is provided inside the sedimentation tank body (1); The connection mechanism (5) comprises three fixing frames (51), three filter screens (52), a U-shaped frame (53), an electric push rod (54), a fixing rod (55) and a connection assembly (56). The three fixing frames (51) are all arranged inside the sedimentation tank body (1). The filter screen (52) is fixed inside the fixing frames (51). The U-shaped frame (53) is fixed to the outside of the sedimentation tank body (1) by bolts. The electric push rod (54) is fixed to the upper surface of the U-shaped frame (53). The outer side of the output shaft of the electric push rod (54) passes through the U-shaped frame (53) and extends to the inside. The outer side of the output shaft of the electric push rod (54) is slidably connected to the inside of the U-shaped frame (53). The upper surface of the fixing rod (55) is fixedly connected to the outer side of the output shaft of the electric push rod (54).

2. A wastewater sedimentation tank for green production of concrete according to claim 1, characterized in that: The water inlet structure (2) comprises a connecting pipe, the outer side of the connecting pipe is connected to a first electromagnetic valve, and the interior of the first electromagnetic valve is connected to a water inlet pipe.

3. A wastewater sedimentation tank for green production of concrete according to claim 1, characterized in that: The connection assembly (56) comprises three connection plates (561), three mounting plates (562), three cleaning brushes (563) and four discharge structures (564); the three connection plates (561) are all fixed on the lower surface of the fixing rod (55) and are equidistantly distributed.

4. A wastewater sedimentation tank for green production of concrete according to claim 3, characterized in that: The discharge structure (564) comprises a first discharge pipe, the outer side of the first discharge pipe is connected to a second electromagnetic valve, and the inner side of the second electromagnetic valve is connected to the second discharge pipe.

5. The wastewater sedimentation tank for green production of concrete according to claim 1, characterized in that: The left and right mounting frames (4) are symmetrically distributed on the left and right sides of the longitudinal center axis of the sedimentation tank body (1).

6. A wastewater sedimentation tank for green production of concrete according to claim 1, characterized in that: The electric push rod (54) is located on the longitudinal center axis of the U-shaped frame (53).

7. A wastewater sedimentation tank for green production of concrete according to claim 3, characterized in that: The upper surface of the mounting plate (562) is fixedly connected to the lower surface of the connecting plate (561), the cleaning brush (563) is fixed to the right side of the mounting plate (562), and the four discharge structures (564) are all connected to the lower surface of the sedimentation tank body (1) and are equidistantly distributed.

8. The wastewater sedimentation tank for green production of concrete according to claim 1, characterized in that: The fixing rod (55) moves linearly up and down inside the U-shaped frame (53).

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