Inclined plate sedimentation tank

Abstract

The utility model belongs to the technical field of sewage treatment, and particularly relates to an inclined plate sedimentation tank which comprises a sedimentation tank, a sedimentation tank inlet is arranged at the bottom of the sedimentation tank, an inclined plate fixing frame is arranged at the top of a mud bucket of the sedimentation tank, the inclined plate fixing frame is rotatably connected with one ends of a plurality of inclined plates, and the other ends of the inclined plates are rotatably connected with an inclined plate moving frame. Two racks are arranged on the inclined plate moving frame, and the inclined plate moving frame is driven by a motor through the racks. The sedimentation tank has the beneficial effects that a self-adaptive control mechanism is adopted, the inclination angle of the inclined plate can be automatically adjusted according to the real-time change of water quality and flow, and the sedimentation tank is ensured to be always in an optimal working state, so that a water body is continuously and efficiently treated, and the sedimentation effect is improved; the inclination angle of the inclined plate is adjusted according to the water quality, so that the blocking risk of the inclined plate is reduced, the maintenance time is shortened, and the service life of the inclined plate is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, in particular to an inclined plate sedimentation tank. Background Art

[0002] Inclined plate sedimentation tanks are widely used in the water treatment industry for solid-liquid separation and sewage treatment. Traditional inclined plate sedimentation tanks increase the sedimentation area and thus enhance the sedimentation efficiency by setting a series of inclined plates with fixed inclination angles. However, the angles of these inclined plates are fixed and cannot be adjusted according to different water quality and flow conditions, which limits their treatment effect under changing working conditions.

[0003] In patent document US5049278A, a modular inclined plate settler is disclosed, which receives liquid inflow through a series of water inlets and is arranged in a settling tank for settling. Although this design provides a certain degree of modularity and flexibility, it does not provide a mechanism to adjust the angle of the inclined plate according to actual operating conditions.

[0004] To address this problem, we proposed a highly efficient inclined plate sedimentation tank with adaptively adjustable inclined plate angle. It can not only automatically adjust the inclined plate angle according to the size of the water flow and the change of water quality to adapt to different working conditions, but also improve the sedimentation efficiency and treatment capacity. This adaptive adjustment mechanism is lacking in traditional inclined plate sedimentation tanks, and it brings higher adaptability and operational flexibility to water treatment equipment. Summary of the invention

[0005] In view of the problem that the above-mentioned inclined plate sedimentation tank cannot adjust the angle of the inclined plate according to the actual operating conditions, the utility model provides an inclined plate sedimentation tank, and its technical solution is: comprising a sedimentation tank, a sedimentation tank inlet is arranged at the bottom of the sedimentation tank, an inclined plate fixing frame is arranged on the top of the mud hopper of the sedimentation tank, the inclined plate fixing frame is rotatably connected to one end of a plurality of inclined plates, the other end of the inclined plate is rotatably connected to an inclined plate moving frame, two racks are arranged on the inclined plate moving frame, and the inclined plate moving frame is driven by a motor through the racks.

[0006] As a preferred solution, a water overflow weir is provided on the top of the sedimentation tank.

[0007] As a preferred solution, an online monitoring device is provided at the inlet of the sedimentation tank, and the online monitoring device is interlocked with the motor. The online monitoring device includes a flow meter and an online sewage monitor.

[0008] As a preferred solution, the motor and the rack of the sedimentation tank are connected via a transmission device.

[0009] As a preferred solution, the inclined plate of the sedimentation tank has an inclination angle of 50°-70°.

[0010] Beneficial effects of the utility model:

[0011] The sedimentation tank adopts an adaptive control mechanism, which can automatically adjust the inclination angle of the inclined plate according to real-time changes in water quality and flow, ensuring that the sedimentation tank is always in the best working state, thereby continuously and efficiently treating the water body and improving the sedimentation effect; and because the inclination angle of the inclined plate is adjusted according to the water quality, the risk of inclined plate blockage is reduced, maintenance time is reduced, and the service life of the inclined plate is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 It is a schematic diagram of the overall structure of the inclined plate in the utility model.

[0014] Figure 3 It is a top view of the inclined plate in the utility model.

[0015] Figure 4 It is a right side view of the inclined plate in the utility model.

[0016] In the figure: 1. Sedimentation tank inlet; 2. Online monitoring equipment; 3. Inclined plate fixing frame; 4. Inclined plate; 5. Inclined plate moving frame; 6. Rack; 7. Motor; 8. Transmission device; 9. Outlet overflow weir; 10. Sedimentation tank. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below based on the accompanying drawings and specific embodiments.

[0018] Example 1

[0019] like Figure 1-4 As shown, an inclined plate sedimentation tank includes a sedimentation tank 10, a sedimentation tank inlet 1 is arranged at the bottom of the sedimentation tank 10, an inclined plate fixing frame 3 is arranged on the top of the mud hopper of the sedimentation tank 10, the inclined plate fixing frame 3 is rotatably connected to one end of a plurality of inclined plates 4, the other end of the inclined plate 4 is rotatably connected to an inclined plate moving frame 5, two racks 6 are arranged on the inclined plate moving frame 5, and the inclined plate moving frame 5 is driven by a motor 7 through the racks 6.

[0020] An overflow weir 9 is provided on the top of the sedimentation tank 10 .

[0021] The sedimentation tank inlet 1 is provided with an online monitoring device 2 , and the online monitoring device 2 is interlocked with the motor 7 .

[0022] The motor 7 and the rack 6 of the sedimentation tank 10 are connected via a transmission device 8, which includes a transmission rod and a gear. The motor drives the transmission rod, and the transmission rod drives the gear to move the rack 6 to complete the lifting and lowering of the inclined plate moving frame 5 and realize the change of the inclination angle of the inclined plate 4.

[0023] The inclined plate 4 of the sedimentation tank 10 has an inclination angle of 50°-70°.

[0024] Inclined plate angle 50°: Applicable to SVI value less than 80 mL / g, MLSS concentration less than 2000 mg / L, and sewage flow less than 30 m 3 / h low-concentration, low-sludge index sewage treatment. This inclination helps to quickly settle light sludge;

[0025] Inclined plate angle 55°; suitable for SVI value of 80-100 mL / g, MLSS concentration of 2000-2500 mg / L, sewage flow of 30-35 m 3 / h of medium concentration sewage treatment. This inclination balances the sedimentation efficiency and flow treatment capacity.

[0026] Inclined plate angle 60°: Applicable to SVI values ​​of 100-120 mL / g, MLSS concentrations of 2500-3000 mg / L, and sewage flow rates of 35-40 m 3 / h condition. This is a general inclination angle, suitable for most standard operating conditions; other water quality parameters within a suitable range are suitable for the selection of a 60° inclination angle, such as an SVI value of 90 mL / g, an MLSS concentration of 3200 mg / L, and an inlet flow rate of 30m3 / h.

[0027] Inclined plate angle 65°: Applicable to SVI value of 120-140 mL / g, MLSS concentration of 3000-3500 mg / L, sewage flow of 40-45 m 3 / h of higher concentration sewage treatment. Higher inclination angle helps to handle heavier sludge particles.

[0028] Inclined plate angle 70°: Applicable to SVI value greater than 140 mL / g, MLSS concentration greater than 3500 mg / L, and sewage flow rate exceeding 45 m 3 / h high concentration, high sludge index sewage treatment. This inclination is designed for efficient mud-water separation under extreme conditions.

[0029] The above-mentioned sedimentation tank is used in the following process: first, sewage enters the sedimentation tank 10 through the sedimentation tank inlet 1. At this time, the online monitoring device 2 measures the flow rate and sludge index of the inlet water in real time. After being measured by the online monitoring device 2, the sewage flows through the inner side of the inclined plate fixing frame 3 and flows along the inclined plate 4. At this time, the online monitoring device 2 transmits data to the motor 7, and the motor 7 adjusts the inclination angle of the inclined plate 4 according to the data to achieve the best sedimentation efficiency. The above-mentioned adjustment method is that the motor 7 drives the transmission device 8, and the transmission device 8 drives the rack 6 to drive the inclination angle of the inclined plate 4. After the sedimentation is completed, the clean water flows out through the effluent overflow weir 9, and the sludge is deposited at the bottom of the sedimentation tank 10.

Claims

1. An inclined plate sedimentation tank, comprising a sedimentation tank (10), wherein a sedimentation tank inlet (1) is arranged at the bottom of the sedimentation tank (10), characterized in that: A sloping plate fixing frame (3) is arranged at the top of the mud bucket of the sedimentation tank (10), the sloping plate fixing frame (3) is rotatably connected to one end of a plurality of sloping plates (4), the other end of the sloping plates (4) is rotatably connected to a sloping plate moving frame (5), two racks (6) are arranged on the sloping plate moving frame (5), and the sloping plate moving frame (5) is driven by a motor (7) via the racks (6).

2. The inclined plate sedimentation tank according to claim 1, characterized in that: A water outlet overflow weir (9) is provided at the top of the sedimentation tank (10).

3. The inclined plate sedimentation tank according to claim 1, characterized in that: The sedimentation tank inlet (1) is provided with an online monitoring device (2), and the online monitoring device (2) is interlocked with the motor (7).

4. The inclined plate sedimentation tank according to claim 1, characterized in that: The motor (7) and the rack (6) of the sedimentation tank (10) are connected in transmission via a transmission device (8).

5. The inclined plate sedimentation tank according to claim 1, characterized in that: The inclined plate (4) of the sedimentation tank (10) has an inclination angle of 50°-70°.

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