Sedimentation tank for wastewater treatment

Abstract

The invention provides a sedimentation tank for wastewater treatment, and relates to the technical field of wastewater treatment.The sedimentation tank comprises a tank body, a first sedimentation tank and a second sedimentation tank are arranged at the two ends of the upper surface of the tank body respectively, and a liquid inlet pipe is installed at the upper end of the side, away from the second sedimentation tank, in the first sedimentation tank in a penetrating mode; and an auxiliary mechanism is arranged between the liquid inlet pipe and the tank body. Through linkage design of fan blades, a rotating shaft and a spray head in the auxiliary mechanism, when wastewater enters the first precipitation tank from the liquid inlet pipe, water flow pushes the fan blades to rotate and drives the rotating shaft and a connecting disc to rotate, so that the spray head forms a rotary spraying action in the liquid inlet pipe; by means of the design, liquid medicine can be evenly sprayed into waste water through the spray heads, the problem of uneven spraying caused by force and angle differences in manual operation is avoided, it is guaranteed that the liquid medicine makes full contact with the waste water, and a uniform material foundation is laid for subsequent flocculation reaction.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, in particular to a sedimentation tank for wastewater treatment. Background Art

[0002] In the wastewater treatment process, the sedimentation tank is a very important and commonly used treatment unit, which is used to separate suspended solids, colloidal particles or flocs formed by flocculation in the wastewater from water, thereby reducing the turbidity, concentration and some organic matter content of the wastewater. For example, the application number "CN201921564704.6" proposes a sedimentation tank for wastewater treatment, including a tank body, an inlet pipe, a drain pipe, two sets of legs and a mounting plate. A first cavity is provided inside the tank body, an inclined surface is provided on the lower right side of the first cavity, and the top of the inclined surface is located to the right of the bottom end. A collecting trough is provided on the left side of the bottom end of the first cavity, and the upper left side of the tank body is connected to the right end of the water inlet pipe; it also includes a mounting seat, a motor, a first transmission shaft, a reducer, a second transmission shaft, a mounting sleeve, a locking bolt, a vibration ball, four sets of fixing seats, four sets of springs, a base, four sets of first guide rods and four sets of second guide rods;

[0003] However, in the above technical solution, the liquid medicine needs to be sprayed into the wastewater manually. However, manual spraying is not only prone to uneven spraying, but also has a low mixing efficiency between the liquid medicine and the wastewater, resulting in poor overall flocculation effect. Therefore, we propose a sedimentation tank for wastewater treatment to solve the above problems. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a sedimentation tank for wastewater treatment, which solves the problem of manual spraying of liquid medicine into wastewater. However, manual spraying is not only prone to uneven spraying, but also has a low mixing efficiency of the liquid medicine and wastewater, resulting in poor overall flocculation effect.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A sedimentation tank for wastewater treatment comprises a tank body, wherein a first sedimentation tank and a second sedimentation tank are respectively provided at both ends of the upper surface of the tank body, a liquid inlet pipe is installed through the upper end of the first sedimentation tank and away from the second sedimentation tank, an auxiliary mechanism is installed between the liquid inlet pipe and the tank body, a communicating hole is penetrated between the first sedimentation tank and the second sedimentation tank, the auxiliary mechanism comprises a rotating shaft, the rotating shaft is movably installed in the interior of the liquid inlet pipe, a connecting frame is installed in the interior of the liquid inlet pipe, a rod body of the rotating shaft is movably installed in the interior of the connecting frame, a fan blade is installed at the end of the rotating shaft away from the connecting frame, and is located between the connecting frame and the fan blade A connecting disk is installed on the outside of the rotating shaft rod body, and a temporary storage groove is provided between the connecting disk and the rotating shaft. A plurality of nozzles are installed on the side of the connecting disk close to the connecting frame, and the nozzles are respectively connected to the temporary storage grooves, and a one-way valve is installed inside the nozzles. The temporary storage groove is located at one end inside the connecting frame and is penetrated by a plurality of grooves. A plurality of fixing rods are installed inside the liquid inlet pipe, and the ends of the fixing rods close to each other are respectively connected to the connecting frame. A liquid storage groove is provided at the upper end of the interior of the pool body, and a liquid guide hole is penetrated inside the fixing rod located at the upper end, and the upper and lower ends of the liquid guide hole are respectively connected to the liquid storage groove and the interior of the connecting frame.

[0007] Preferably, a drain pipe is installed inside the second sedimentation tank at one end away from the communicating hole.

[0008] Preferably, sewage pipes are respectively installed through the lower ends of the rear sides of the first sedimentation tank and the second sedimentation tank, and valves are respectively installed inside the sewage pipes.

[0009] Preferably, a plurality of stirring rods are installed on the outside of the shaft, and the stirring rods are located between the nozzle and the connecting frame, and the stirring rods are movably located inside the liquid inlet pipe.

[0010] Preferably, clamping disks are respectively installed at both ends of the shaft on the side of the rotating shaft away from the fan blades, and the sides of the clamping disks away from each other are respectively set to be inclined, and the connecting frame is located between the clamping disks.

[0011] Preferably, a sealing block is installed on one side of the clamping disk close to the connecting frame, and sealing grooves are provided on both sides of the connecting frame, and the sealing blocks are respectively engaged and installed in the inside of the sealing grooves.

[0012] Preferably, an observation window is provided inside the liquid storage tank and on a side away from the first sedimentation tank.

[0013] Preferably, a pressure plate is fitted inside the liquid storage tank, and an electric push rod is installed at one end of the upper surface of the pool body. The output ends of the electric push rod are movable through the interior of the liquid storage tank and connected to the pressure plate.

[0014] Preferably, a guide groove is provided on the upper side of the front end of the liquid storage tank, and a connecting pipe is installed through the upper end of the guide groove.

[0015] Preferably, a sealing cap is threadedly mounted on the upper end of the connecting pipe.

[0016] 1. In the present invention, the fan blades, rotating shaft and nozzle in the auxiliary mechanism are linked together. When wastewater enters the first sedimentation tank from the liquid inlet pipe, the water flow drives the fan blades to rotate, driving the rotating shaft and the connecting plate to rotate, so that the nozzle forms a rotating spraying action in the liquid inlet pipe. Compared with manual spraying, this design can evenly spray the liquid medicine into the wastewater through the nozzle, avoiding the problem of uneven spraying caused by differences in force and angle in manual operation, ensuring full contact between the liquid medicine and the wastewater, and laying a uniform material foundation for the subsequent flocculation reaction.

[0017] 2. In the present invention, the stirring rod on the outside of the rotating shaft rotates synchronously with the rotation of the fan blades, stirring the mixture of wastewater and liquid medicine in the liquid inlet pipe. At the same time, the electric push rod pushes the pressure plate to squeeze the liquid medicine in the liquid storage tank. The liquid medicine is pressurized through the liquid guide holes, grooves and temporary storage tanks and then sprayed out through the nozzle. The mechanical stirring of the stirring rod and the rotating spraying of the nozzle form a synergistic effect, so that the liquid medicine is quickly dispersed into the wastewater in the form of fine droplets, shortening the mixing time, improving the mixing uniformity, and then accelerating the formation and growth of flocculation particles, thereby improving the overall flocculation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a front view structural schematic diagram of the present invention;

[0020] Figure 3 It is a side structural schematic diagram of the present invention;

[0021] Figure 4 yes Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0022] Figure 5 yes Figure 3 Schematic diagram of the cross-sectional structure at the middle BB;

[0023] Figure 6 yes Figure 4 Schematic diagram of the enlarged three-dimensional structure at C in the middle;

[0024] Figure 7 yes Figure 5 Schematic diagram of the enlarged three-dimensional structure at point D in the middle.

[0025] In the figure: 1. Pool body; 2. Liquid inlet pipe; 3. Auxiliary mechanism; 301. Rotating shaft; 302. Fan blade; 303. Connecting plate; 304. Temporary storage tank; 305. Nozzle; 306. Stirring rod; 307. Clamping plate; 308. Sealing block; 309. Connecting frame; 310. Sealing groove; 311. Groove; 312. Fixing rod; 313. Liquid guide hole; 314. Liquid storage tank; 315. Observation window; 316. Pressing plate; 317. Electric push rod; 318. Guide groove; 319. Connecting pipe; 320. Sealing cover; 4. First sedimentation tank; 5. Second sedimentation tank; 6. Connecting hole; 7. Drain pipe; 8. Sewage pipe. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] like Figures 1 to 7 As shown, a sedimentation tank for wastewater treatment includes a tank body 1, and a first sedimentation tank 4 and a second sedimentation tank 5 are respectively provided at both ends of the upper surface of the tank body 1. A liquid inlet pipe 2 is installed inside the first sedimentation tank 4 and on the upper end of the side away from the second sedimentation tank 5. An auxiliary mechanism 3 is installed between the liquid inlet pipe 2 and the tank body 1, and a connecting hole 6 is provided between the first sedimentation tank 4 and the second sedimentation tank 5. The auxiliary mechanism 3 includes a rotating shaft 301, which is movably installed in the interior of the liquid inlet pipe 2, and a connecting frame 309 is installed in the interior of the liquid inlet pipe 2. The rod body of the rotating shaft 301 is movably installed in the interior of the connecting frame 309, and a fan blade 302 is installed at the end of the rotating shaft 301 away from the connecting frame 309. A fan blade 302 is installed on the outside of the rod body of the rotating shaft 301 located between the connecting frame 309 and the fan blade 302. A connecting disk 303 is provided, and a temporary storage tank 304 is provided between the connecting disk 303 and the rotating shaft 301. Several nozzles 305 are installed on the side of the connecting disk 303 close to the connecting frame 309, and the nozzles 305 are respectively connected to the temporary storage tank 304. A one-way valve is installed inside the nozzle 305. The temporary storage tank 304 is located at one end inside the connecting frame 309 and is penetrated by a plurality of grooves 311. Several fixing rods 312 are installed inside the liquid inlet pipe 2, and the ends of the fixing rods 312 close to each other are respectively connected to the connecting frame 309. A liquid storage tank 314 is provided at the upper end of the interior of the pool body 1, and a liquid guide hole 313 is penetrated inside the fixing rod 312 at the upper end. The upper and lower ends of the liquid guide hole 313 are respectively connected to the liquid storage tank 314 and the interior of the connecting frame 309.

[0028] like Figure 5As shown, a drain pipe 7 is installed inside the second sedimentation tank 5 and at one end away from the connecting hole 6, and a sewage pipe 8 is installed at the lower end of the rear side of the first sedimentation tank 4 and the second sedimentation tank 5, and valves are installed inside the sewage pipes 8.

[0029] The liquid discharge pipe 7 realizes the orderly discharge of the treated wastewater, and the sewage discharge pipe 8 facilitates the regular cleaning of the sludge inside the first sedimentation tank 4 and the second sedimentation tank 5, ensuring the continuous and efficient operation of the tank body 1 and avoiding the accumulation of sludge affecting the sedimentation effect.

[0030] like Figure 6 and Figure 7 As shown, a plurality of stirring rods 306 are installed on the outside of the shaft of the rotating shaft 301, and the stirring rods 306 are located between the nozzle 305 and the connecting frame 309. The stirring rods 306 are movably located inside the liquid inlet pipe 2. The two ends of the shaft of the rotating shaft 301 away from the fan blade 302 are respectively installed with clamping plates 307. The sides of the clamping plates 307 away from each other are respectively set to be inclined. The connecting frame 309 is located between the clamping plates 307. The side of the clamping plates 307 close to the connecting frame 309 is respectively installed with sealing blocks 308. The two sides of the connecting frame 309 are respectively provided with sealing grooves 310. The sealing blocks 308 are respectively provided with sealing grooves 310. 8 are respectively engaged and installed in the interior of the sealing groove 310, and an observation window 315 is provided on the interior of the liquid storage tank 314 and on the side away from the first sedimentation tank 4. A pressure plate 316 is fitted on the interior of the liquid storage tank 314, and an electric push rod 317 is installed at one end of the upper surface of the pool body 1. The output ends of the electric push rod 317 are movable through the interior of the liquid storage tank 314 and are connected to the pressure plate 316. A guide groove 318 is provided on the upper side of the front end of the interior of the liquid storage tank 314, and a connecting pipe 319 is installed through the upper end of the interior of the guide groove 318. A sealing cover 320 is installed on the upper end of the tube body of the connecting pipe 319 through a thread.

[0031] The stirring rod 306 on the outside of the rotating shaft 301 rotates as the fan blades 302 rotate, stirring the mixture of wastewater and liquid medicine in the liquid inlet pipe 2. At the same time, the electric push rod 317 pushes the pressure plate 316 to squeeze the liquid medicine in the liquid storage tank 314. After passing through the liquid guide hole 313, the groove 311, and the temporary storage tank 304, the liquid medicine is sprayed out from the nozzle 305 under the action of pressure. The mechanical stirring of the stirring rod 306 and the rotating spraying of the nozzle 305 work together to quickly disperse the liquid medicine into the wastewater in the form of fine droplets, shortening the mixing time, improving the mixing uniformity, accelerating the formation and growth of flocculation particles, and improving the flocculation efficiency.

[0032] The sealing block 308 on the clamping plate 307 is mounted in the sealing groove 310 of the connecting frame 309 to form a sealing structure, thereby ensuring the sealing between the connecting frame 309 and the rotating shaft 301, preventing the leakage of the liquid medicine, avoiding the waste of the liquid medicine and the pollution of the equipment, and ensuring the stable operation of the system;

[0033] The observation window 315 facilitates real-time monitoring of the amount of liquid medicine, the electric push rod 317 accurately controls the output of the liquid medicine, the guide groove 318 and the connecting pipe 319 facilitate the addition of liquid medicine, and the sealing cover 320 ensures the safety of liquid medicine storage, thereby improving the convenience and accuracy of operation.

[0034] The working principle of a sedimentation tank for wastewater treatment:

[0035] When in use, first when wastewater enters the first sedimentation tank 4 from the liquid inlet pipe 2, the flowing wastewater will impact the fan blade 302, thereby pushing the fan blade 302 to start rotating. Then, since the fan blade 302 is installed at one end of the rotating shaft 301, the rotation of the fan blade 302 will drive the rotating shaft 301 to rotate together, and then the rotation of the rotating shaft 301 will drive the connecting disk 303 to rotate, and the connecting disk 303 is equipped with a nozzle 305, so that the nozzle 305 forms a rotating spraying action in the liquid inlet pipe 2, and then starts the electric push rod 317 on the pool body 1, and lets its output end push the pressure plate 316 to move downward in the liquid storage tank 314, so that the downward movement of the pressure plate 316 squeezes the liquid in the liquid storage tank 314, so that the liquid is pressurized, and then the pressurized liquid flows into the inside of the connecting frame 309 through the liquid guide hole 313, and then enters the inside of the temporary storage tank 304 through the groove 311, and then When the pressure of the medicinal liquid in the temporary storage tank 304 gradually increases, as the pressure exceeds the set pressure of the one-way valve inside the nozzle 305, the one-way valve opens, and the medicinal liquid is sprayed out through the nozzle 305 and mixed with the wastewater in the liquid inlet pipe 2. Then, during the rotation of the rotating shaft 301, the stirring rod 306 outside its rod body also rotates, so that the stirring rod 306 stirs the mixture of wastewater and medicinal liquid in the liquid inlet pipe 2, so that the medicinal liquid is quickly dispersed into the wastewater in the form of fine droplets. The mixed wastewater then enters the first sedimentation tank 4 for preliminary sedimentation, and then flows into the second sedimentation tank 5 through the connecting hole 6 for further sedimentation. After the sedimentation is completed, the treated wastewater that meets the standards is discharged from the drain pipe 7 of the second sedimentation tank 5, and the precipitated sludge is discharged through the sewage pipe 8 at the lower end of the rear side of the first sedimentation tank 4 and the second sedimentation tank 5 respectively. The valve in the sewage pipe 8 can control the discharge timing of the sludge.

[0036] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. Any obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A sedimentation tank for wastewater treatment, comprising a tank body (1), characterized in that: A first sedimentation tank (4) and a second sedimentation tank (5) are respectively provided at both ends of the upper surface of the pool body (1); a liquid inlet pipe (2) is installed through the upper end of the first sedimentation tank (4) and away from the second sedimentation tank (5); an auxiliary mechanism (3) is installed between the liquid inlet pipe (2) and the pool body (1); a communicating hole (6) is provided between the first sedimentation tank (4) and the second sedimentation tank (5); the auxiliary mechanism (3) comprises a rotating shaft (301); the rotating shaft (301) is movably installed inside the liquid inlet pipe (2); a connecting frame (309) is installed inside the liquid inlet pipe (2); a rod of the rotating shaft (301) is movably installed inside the connecting frame (309); a fan blade (302) is installed at one end of the rotating shaft (301) away from the connecting frame (309); a connecting plate (302) is installed on the outer side of the rod of the rotating shaft (301) located between the connecting frame (309) and the fan blade (302). 303), a temporary storage tank (304) is provided between the connecting plate (303) and the rotating shaft (301), a plurality of nozzles (305) are installed on the side of the connecting plate (303) close to the connecting frame (309), and the nozzles (305) are respectively connected to the temporary storage tank (304), and a one-way valve is respectively installed inside the nozzles (305), and a plurality of grooves (311) are penetrated at one end of the temporary storage tank (304) located inside the connecting frame (309) ), a plurality of fixing rods (312) are installed inside the liquid inlet pipe (2), and the ends of the fixing rods (312) close to each other are respectively connected to the connecting frame (309), and a liquid storage tank (314) is provided at the upper end of the interior of the pool body (1), and a liquid guide hole (313) is provided inside the fixing rod (312) at the upper end, and the upper and lower ends of the liquid guide hole (313) are respectively connected to the liquid storage tank (314) and the interior of the connecting frame (309).

2. A sedimentation tank for wastewater treatment according to claim 1, characterized in that: A drain pipe (7) is installed inside the second sedimentation tank (5) and at one end away from the communicating hole (6).

3. A sedimentation tank for wastewater treatment according to claim 1, characterized in that: A sewage pipe (8) is installed through the lower end of the rear side of the first sedimentation tank (4) and the second sedimentation tank (5), and a valve is installed inside the sewage pipe (8).

4. A sedimentation tank for wastewater treatment according to claim 1, characterized in that: A plurality of stirring rods (306) are installed on the outside of the shaft (301), and the stirring rods (306) are located between the spray head (305) and the connecting frame (309). The stirring rods (306) are movably located inside the liquid inlet pipe (2).

5. A sedimentation tank for wastewater treatment according to claim 1, characterized in that: Clamping disks (307) are respectively installed at both ends of the shaft of the rotating shaft (301) away from the fan blades (302), and the sides of the clamping disks (307) away from each other are respectively set to be inclined, and the connecting frame (309) is located between the clamping disks (307).

6. A sedimentation tank for wastewater treatment according to claim 5, characterized in that: A sealing block (308) is installed on one side of the clamping disc (307) close to the connecting frame (309), and sealing grooves (310) are provided on both sides of the connecting frame (309). The sealing blocks (308) are respectively engaged and installed inside the sealing grooves (310).

7. A sedimentation tank for wastewater treatment according to claim 1, characterized in that: An observation window (315) is provided inside the liquid storage tank (314) on a side away from the first precipitation tank (4).

8. A sedimentation tank for wastewater treatment according to claim 1, characterized in that: A pressure plate (316) is fitted inside the liquid storage tank (314), and an electric push rod (317) is installed on one end of the upper surface of the pool body (1). The output ends of the electric push rod (317) are movable through the interior of the liquid storage tank (314) and connected to the pressure plate (316).

9. A sedimentation tank for wastewater treatment according to claim 1, characterized in that: A guide groove (318) is provided on the upper side of the front end of the liquid storage tank (314), and a connecting pipe (319) is installed through the upper end of the guide groove (318).

10. A sedimentation tank for wastewater treatment according to claim 9, characterized in that: A sealing cap (320) is threadedly mounted on the upper end of the connecting pipe (319).

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