Hydropower station construction sewage energy-saving treatment device

Abstract

The utility model discloses an energy-saving treatment device for construction sewage of a hydropower station, which relates to the technical field of sewage treatment equipment and comprises a sewage stirring tank, a distribution tank connected with the sewage stirring tank and a plurality of filter tanks respectively connected with the distribution tank. A first valve is arranged between the filter tank and the distribution tank for connection, and a second valve is arranged between the sewage stirring tank and the distribution tank for connection; the filter tank comprises a water tank, a plurality of sand filter plates arranged in the water tank in a turnover manner, a first water inlet connected with the second valve, and a first water outlet formed in the tail end of the water tank. A series of chemicals such as a flocculating agent, a disinfectant and a PH regulator are fully mixed with sewage through the sewage stirring tank, then the mixture is discharged into the distribution tank and flows into the filtering tank through the distribution tank, and filtered water is discharged from the water tank; according to the device, sewage purification mainly depends on a medicament and a sand filter plate for filtration, and the device is effective and energy-saving.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, specifically relating to an energy-saving treatment device for wastewater from hydropower station construction. Background Technology

[0002] Hydropower station construction sites are located in mountainous areas, lakes, rivers, and reservoirs rich in water resources. During construction, a large amount of construction wastewater will be generated. If the construction wastewater is discharged without filtration and treatment, it will pollute the local water system and damage the local ecological environment. Utility Model Content

[0003] In order to overcome the problems existing in the background technology, this utility model provides an energy-saving treatment device for construction wastewater of hydropower stations.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: an energy-saving treatment device for construction wastewater of a hydropower station, comprising: a wastewater mixing tank, a distribution tank connected to the wastewater mixing tank, and multiple filter tanks respectively connected to the distribution tank; a first valve is provided between the filter tanks and the distribution tanks, and a second valve is provided between the wastewater mixing tanks and the distribution tanks; the filter tanks include: a water tank, multiple sand filter plates that can be rotated and disposed in the water tank, a first water inlet connected to the second valve, and a first water outlet disposed at the tail end of the water tank.

[0005] Preferably, the sand filter plate includes: a support rod disposed on the water tank, a rotating shaft rotatably disposed at the center of the support rod, a mounting plate fixedly connected to the rotating shaft and located below the support rod, and a filter assembly disposed on the mounting plate; the mounting plate has through holes located on both sides of the rotating shaft, and the filter assembly is disposed in the through holes.

[0006] Preferably, the sand filter plate divides the water tank into multiple filtration chambers, and each filtration chamber is equipped with a cleaning valve.

[0007] Preferably, the side wall of the distribution tank is provided with a plurality of second water outlets respectively connected to the first valve, and the distribution tank is provided with a second water inlet connected to the second valve.

[0008] Preferably, the wastewater mixing tank includes: a tank body, a third outlet on the side wall of the tank body connected to the second valve, a third inlet on the side wall of the tank body, a bracket on the opening of the tank body, a motor on the bracket, a reducer connected to the motor, a drive shaft connected to the output end of the reducer, and a stirring paddle on the drive shaft.

[0009] The beneficial effects of this utility model compared with the prior art are as follows:

[0010] This invention uses a wastewater mixing tank to thoroughly mix a series of agents, such as flocculants, disinfectants, and pH adjusters, with the wastewater, which is then discharged into a distribution tank. From there, the water flows into the filtration tank, and the filtered water is discharged from the water tank. The device purifies wastewater mainly through the use of agents and sand filter plates, which is effective and energy-saving. In addition, the sand filter plates of this invention can be flipped, which can achieve the effect of backwashing the sand filter plates and restore their filtration efficiency. Attached Figure Description

[0011] Figure 1 A schematic diagram of an energy-saving wastewater treatment device for hydropower station construction.

[0012] Figure 2 This is a schematic diagram of the structure of a sand filter plate.

[0013] In the diagram: 1. Sewage mixing tank; 2. Distribution tank; 3. Filter tank; 4. First valve; 5. Second valve; 6. Water tank; 7. Sand filter plate; 8. First inlet; 9. First outlet; 10. Support rod; 11. Rotating shaft; 12. Mounting plate; 13. Filter assembly; 14. Filter chamber; 15. Cleaning valve; 16. Second outlet; 17. Second inlet; 18. Tank body; 19. Bracket; 20. Motor; 21. Reducer; 22. Drive shaft; 23. Agitator; 24. Third outlet; 25. Third inlet. Detailed Implementation

[0014] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below to facilitate understanding by those skilled in the art.

[0015] Please see Figures 1 to 2 This utility model provides an energy-saving treatment device for construction wastewater in hydropower stations, comprising: a wastewater mixing tank 1, a distribution tank 2 connected to the wastewater mixing tank 1, and multiple filter tanks 3 respectively connected to the distribution tank 2; a first valve 4 is provided between the filter tanks 3 and the distribution tanks 2, and a second valve 5 is provided between the wastewater mixing tank 1 and the distribution tanks 2; the filter tank 3 includes: a water tank 6, multiple sand filter plates 7 that can be rotated and installed in the water tank 6, a first water inlet 8 connected to the second valve 5, and a first water outlet 9 located at the tail end of the water tank 6.

[0016] The sand filter plate 7 includes: a support rod 10 mounted on the water tank 6; a rotating shaft 11 rotatably mounted at the center of the support rod 10; a mounting plate 12 fixedly connected to the rotating shaft 11 and located below the support rod 10; and a filter assembly 13 mounted on the mounting plate 12. The mounting plate 12 has through holes on both sides of the rotating shaft 11, and the filter assembly 13 is disposed within these through holes. The support rod 10 is mounted on the water tank 6, and the mounting plate 12 can rotate with the rotating shaft 11. Rotating the rotating shaft 11 allows the filter assembly 13 to be flipped. The filter assembly 13 is a box within the mounting through holes. The side walls of the box are permeable to water but not leaky with sand and gravel, and the interior of the box contains the sand and gravel used for filtration. After the sand filter plate 7 has been running for a period of time, impurities in the filter layer will gradually accumulate, leading to a decrease in filtration efficiency. At this time, backwashing can be used to flush away the impurities in the filter layer using reverse water flow, thereby restoring the filtration capacity of the sand filter plate 7. Therefore, the sand filter plate 7 is designed to be flip-up for easy backwashing, which can be performed by injecting flushing water into the distribution tank 2. The sand particles in the filter element 13 are smaller the closer they are to the first outlet 9.

[0017] The sand filter plate 7 divides the water tank 6 into multiple filter chambers 14, and each filter chamber 14 is equipped with a cleaning valve 15. Impurities will settle under the action of flocculant, and the sediment will be intercepted by the filter assembly 13. When it accumulates to a certain extent, it will be cleaned through the cleaning valve 15.

[0018] The distribution tank 2 has multiple second water outlets 16 connected to the first valve 4 on its side wall, and a second water inlet 17 connected to the second valve 5. The first valve 4 controls the water entering the water tank 6. The corresponding first valve 4 can be closed when cleaning the filter tank 3, while the other first valves 4 can be opened, allowing for cleaning without stopping the machine.

[0019] The wastewater mixing tank 1 includes: a tank body 18, a third outlet 24 located on the side wall of the tank body 18 and connected to the second valve 5, a third inlet 25 located on the side wall of the tank body 18, a bracket 19 located on the opening of the tank body 18, a motor 20 located on the bracket 19, a reducer 21 connected to the motor 20, a drive shaft 22 connected to the output end of the reducer 21, and a stirring paddle 23 located on the drive shaft 22. The motor 20 drives the stirring paddle 23 to rotate, thoroughly mixing various wastewater treatment agents with the wastewater.

[0020] When using the energy-saving treatment device for construction wastewater of a hydropower station according to this utility model:

[0021] Wastewater generated during construction enters the wastewater mixing tank 1 and wastewater treatment agents are added. The motor 20 is started to fully mix the wastewater and agents. The second valve 5 is opened to discharge the mixed wastewater into the distribution tank 2. The first valve 4 is opened to allow the wastewater to enter the filter tank 3. After passing through multiple filtration stages, the wastewater is discharged from the first outlet 9. When a certain amount of sediment accumulates in the filter chamber 14, the corresponding first valve 4 is closed and the drain valve is opened for sedimentation and cleaning. The filter assembly 13 is flipped by the rotating shaft 11, and then the drain valve is closed and the first valve 4 is opened. The first valve 4 of another filter tank 3 is closed for cleaning.

[0022] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. An energy-saving treatment device for construction wastewater from a hydropower station, characterized in that, include: Wastewater mixing tank (1), distribution tank (2) connected to the wastewater mixing tank (1), and multiple filter tanks (3) respectively connected to the distribution tank (2); a first valve (4) is provided between the filter tank (3) and the distribution tank (2), and a second valve (5) is provided between the wastewater mixing tank (1) and the distribution tank (2); the filter tank (3) includes: a water tank (6), multiple sand filter plates (7) that can be flipped in the water tank (6), a first water inlet (8) connected to the second valve (5), and a first water outlet (9) located at the tail end of the water tank (6).

2. The energy-saving treatment device for construction wastewater of a hydropower station according to claim 1, characterized in that, The sand filter plate (7) includes: a support rod (10) disposed on the water tank (6), a rotating shaft (11) rotatably disposed at the center of the support rod (10), a mounting plate (12) fixedly connected to the rotating shaft (11) and located below the support rod (10), and a filter assembly (13) disposed on the mounting plate (12); the mounting plate (12) has through holes located on both sides of the rotating shaft (11), and the filter assembly (13) is disposed in the through holes.

3. The energy-saving treatment device for construction wastewater of a hydropower station according to claim 2, characterized in that, The sand filter plate (7) divides the water tank (6) into multiple filter chambers (14), and each filter chamber (14) is equipped with a cleaning valve (15).

4. The energy-saving treatment device for construction wastewater of a hydropower station according to claim 1, characterized in that, The side wall of the distribution tank (2) is provided with a plurality of second outlets (16) respectively connected to the first valve (4), and the distribution tank (2) is provided with a second inlet (17) connected to the second valve (5).

5. The energy-saving treatment device for construction wastewater of a hydropower station according to claim 4, characterized in that, The sewage mixing tank (1) includes: a tank body (18), a third outlet (24) connected to the second valve (5) on the side wall of the tank body (18), a third inlet (25) on the side wall of the tank body (18), a bracket (19) on the opening of the tank body (18), a motor (20) on the bracket (19), a reducer (21) connected to the motor (20), a drive shaft (22) connected to the output end of the reducer (21), and a stirring paddle (23) on the drive shaft (22).

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