Efficient mud-water separation and precipitation device

Abstract

The utility model relates to the technical field of sewage treatment, in particular to an efficient mud-water separation and precipitation device. An efficient mud-water separation and precipitation device comprises a flocculation area, a precipitation area, a water inlet, a water distribution guide cylinder, a cleaning device, a water outlet and a mud discharge port, the water inlet is formed in the bottom of one side of the flocculation area, the precipitation area is arranged on the side, away from the water inlet, of the flocculation area, and the water distribution guide cylinder is arranged in the precipitation area; the flocculation area is communicated with the water distribution guide cylinder, a water outlet is formed in the top of one side, far away from the flocculation area, of the precipitation area, a sludge discharge port is formed in the bottom of the precipitation area, and a cleaning device is arranged in the precipitation area. According to the utility model, a water distribution form of the central guide cylinder and the water distribution pore plate is adopted, so that the coagulated / flocculated wastewater is ensured to be uniformly distributed in the settling zone; and during sludge discharge, only the lower-layer sludge bucket part needs to be emptied, so that the accurate control of the sludge discharge amount is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, and more specifically to a high-efficiency mud-water separation and sedimentation device. Background Art

[0002] During the sewage treatment process, it is necessary to separate the sludge and the treated water to prevent the sludge from being lost or to intercept a large amount of suspended matter in the water so that the subsequent treatment of the sewage suspended matter can meet the corresponding national emission requirements.

[0003] At present, the existing coagulation and sedimentation devices all adopt a square tank structure, with water entering from the bottom of one end, passing through the inclined plate sedimentation area, and then outflowing from the top. After the wastewater reacts completely in the coagulation / flocculation reaction area, it enters the water distribution area, and then enters the sedimentation area from the bottom of the water distribution area. In the sedimentation area, the wastewater flows in an oblique upward trend, and finally outflows from the side away from the water distribution end.

[0004] In the above-mentioned sedimentation process, since the wastewater flows in an oblique upward push flow, the inclined plate sedimentation area near the water inlet and water distribution end will have a large load, while the inclined plate sedimentation area far from the water inlet and water distribution end will have a small load. Most of the flocs are concentrated in the inclined plate area at the water inlet end, and even cause the flocs in the inclined plate area at the water inlet end to overflow the inclined plate. Secondly, during the sedimentation process, the wastewater flows from the bottom of the sedimentation area from bottom to top, and the rising flow rate will gradually increase, which is not conducive to the sedimentation of flocs. Therefore, it is necessary to set up an inclined plate and design a smaller surface load to ensure the complete sedimentation of flocs. The sedimentation of flocs from top to bottom needs to overcome the impact of the rising flow rate of wastewater, the sedimentation speed is slow, and some flocs are easy to adhere to the inclined plate, which has a great impact on the sedimentation effect. When cleaning the inclined plate, the sedimentation tank needs to be emptied. After cleaning, the impact on the sedimentation area is also large when the water is re-introduced, and the sedimentation effect cannot be guaranteed. Furthermore, the flocs are deposited at the bottom of the sedimentation tank. It is difficult to define the sludge area and the clean water area when discharging sludge. It is easy to discharge sludge incompletely or discharge clean water into the sludge tank together, which is not conducive to the operation of the system.

[0005] Therefore, it is an urgent problem to be solved by technicians in this field to provide an efficient mud-water separation and sedimentation device with uniform water distribution and good sedimentation effect. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide an efficient mud-water separation and sedimentation device with uniform water distribution, high floc sedimentation efficiency, and precise control of mud discharge volume.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions, which mainly include:

[0008] A high-efficiency mud-water separation and sedimentation device comprises a flocculation area, a sedimentation area, a water inlet, a water distribution guide cylinder, a cleaning device, a water outlet and a mud discharge port, wherein the bottom of one side of the flocculation area is provided with a water inlet, the side of the flocculation area away from the water inlet is provided with a sedimentation area, a water distribution guide cylinder is provided in the sedimentation area, the flocculation area is connected with the water distribution guide cylinder, the top of the sedimentation area away from the flocculation area is provided with a water outlet, the bottom of the sedimentation area is provided with a mud discharge port, and a cleaning device is provided inside the sedimentation area.

[0009] Preferably, the flocculation area includes a flocculation reaction tank, a water-blocking baffle and an agitator. The water-blocking baffle divides the flocculation reaction tank into a flocculation tank and a water distribution trough. An agitator is provided inside the flocculation tank. A water inlet is provided at the bottom of one side of the flocculation tank. An emptying port is provided at the bottom of the flocculation tank. The water distribution trough is connected to a water distribution guide tube near the sedimentation tank.

[0010] Preferably, the sedimentation area includes a sedimentation tank, a reflective baffle, a water distribution orifice plate, a one-way long-handled water cap, an inclined plate packing layer and an overflow weir. A water distribution guide tube is provided in the sedimentation tank, a reflective baffle is installed at the bottom of the water distribution guide tube, a water distribution orifice plate is installed in the sedimentation tank, a number of one-way long-handled water caps are installed on the water distribution orifice plate, an inclined plate packing layer is provided above the sedimentation tank, an overflow weir is provided above the inclined plate packing layer, and a water outlet is provided on the pool wall of the sedimentation tank at the same level as the overflow weir.

[0011] Preferably, the cleaning device includes a cleaning water inlet and a cleaning water distribution pipe. A cleaning water inlet is provided on the pool wall between the water distribution orifice plate and the inclined plate packing layer. A cleaning water distribution pipe is provided between the water distribution orifice plate and the inclined plate packing layer. The cleaning water distribution pipe is connected to the cleaning water inlet.

[0012] Preferably, the bottom of the sedimentation tank is an inverted trapezoidal structure, and the water distribution orifice plate is arranged on the long side of the inverted trapezoid.

[0013] Preferably, the water distribution guide tube is in a "T" shape.

[0014] Preferably, supports are installed at the bottom of the flocculation reaction tank and the sedimentation tank.

[0015] It can be seen from the above technical solution that compared with the prior art,

[0016] This patent adopts the water distribution form of central guide tube and water distribution orifice plate to ensure that the wastewater after coagulation / flocculation is evenly distributed in the sedimentation area;

[0017] This patent adopts a water distribution orifice plate and a one-way long-handled water cap installed on the orifice plate as a middle partition to reduce the rising flow rate of wastewater after entering the sedimentation tank, thereby improving the sedimentation efficiency of flocs in the sedimentation tank;

[0018] This patent adopts a water distribution orifice plate and a one-way long-handled water cap installed on the orifice plate to realize the upper and lower stratification in the sedimentation. Wastewater can only flow from bottom to top. When discharging mud, only the lower mud bucket part needs to be emptied, thereby realizing the precise control of the mud discharge amount.

[0019] This patent adopts a water distribution orifice plate and a one-way long-handled water cap installed on the orifice plate to realize the upper and lower stratification in the sediment. When the mud is discharged and the water is refilled, there will be no disturbance to the upper clear liquid, thus ensuring the stability of the effluent water quality;

[0020] This patent adopts the form of flushing water distribution pipe to clean the inclined plate. There is no need to empty the sedimentation tank when cleaning the inclined plate. As the cleaning water level rises, the cleaning waste water enters the lower layer of the sedimentation tank from the top of the central guide tube and is discharged through the mud discharge port, which greatly saves the flushing time of the inclined plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Explanation of the reference numerals: 1-flocculation reaction tank, 2-sedimentation tank, 3-water inlet, 4-agitator, 5-water-blocking baffle, 6-water distribution guide cylinder, 7-reflection baffle, 8-water distribution orifice plate, 9-one-way long-handled water cap, 10-inclined plate packing layer, 11-overflow weir, 12-water outlet, 13-mud discharge port, 14-cleaning water inlet, 15-cleaning water distribution pipe, 16-drain port, 17-bracket, 18-water distribution trough, 19-flocculation tank. DETAILED DESCRIPTION

[0024] 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.

[0025] Example

[0026] An efficient mud-water separation and sedimentation device, such as Figure 1As shown, it includes a flocculation area, a sedimentation area, a water inlet 3, a water distribution guide tube 6, a cleaning device, a water outlet 12 and a mud discharge port 13. The water inlet 3 is provided at the bottom of one side of the flocculation area, the sedimentation area is provided at the side away from the water inlet 3, the sedimentation area is provided with a water distribution guide tube 6, the flocculation area is connected to the water distribution guide tube 6, the sedimentation area is provided with a water outlet 12 at the top of the side away from the flocculation area, the mud discharge port 13 is provided at the bottom of the sedimentation area, and a cleaning device is provided inside the sedimentation area.

[0027] In order to further optimize the above scheme, the flocculation area includes a flocculation reaction tank 1, a water-blocking baffle 5 and an agitator 4. The water-blocking baffle 5 divides the flocculation reaction tank 1 into a flocculation tank 19 and a water distribution trough 18. An agitator 4 is provided inside the flocculation tank 19. A water inlet 3 is provided at the bottom of one side of the flocculation tank 19. An emptying port 16 is provided at the bottom of the flocculation tank 19. The water distribution trough 18 is connected to the water distribution guide tube 6 near the sedimentation tank 2.

[0028] In order to further optimize the above scheme, the sedimentation area includes a sedimentation tank 2, a reflective baffle 7, a water distribution orifice plate 8, a one-way long-handled water cap 9, an inclined plate packing layer 10 and an overflow weir 11. A water distribution guide tube 6 is provided in the sedimentation tank 2, and a reflective baffle 7 is installed at the bottom of the water distribution guide tube 6. A water distribution orifice plate 8 is installed in the sedimentation tank 2, and several one-way long-handled water caps 9 are installed on the water distribution orifice plate 8. An inclined plate packing layer 10 is provided above the sedimentation tank 2, and an overflow weir 11 is provided above the inclined plate packing layer 10. A water outlet 12 is provided on the pool wall of the sedimentation tank 2 at the same level as the overflow weir 11.

[0029] In order to further optimize the above scheme, the cleaning device includes a cleaning water inlet 14 and a cleaning water distribution pipe 15. A cleaning water inlet 14 is provided on the pool wall between the water distribution orifice plate 8 and the inclined plate packing layer 10. A cleaning water distribution pipe 15 is provided between the water distribution orifice plate 8 and the inclined plate packing layer 10. The cleaning water distribution pipe 15 is connected to the cleaning water inlet 14.

[0030] In order to further optimize the above solution, the bottom of the sedimentation tank 2 is an inverted trapezoidal structure, and the water distribution orifice plate 8 is arranged on the long side of the inverted trapezoid, so as to facilitate fixing the water distribution orifice plate 8 inside the sedimentation tank 2.

[0031] In order to further optimize the above solution, the water distribution guide tube 6 is in a "T" shape.

[0032] In order to further optimize the above solution, a bracket 17 is installed at the bottom of the flocculation reaction tank 1 and the sedimentation tank 2 .

[0033] Working principle: wastewater enters the flocculation reaction tank 1 from the water inlet 3, where coagulation / flocculation agents are added and stirred by the agitator 4 for complete reaction, then overflows to the water distribution tank through the water-blocking baffle 5, and then enters the bottom layer of the sedimentation tank 2 through the water distribution guide tube 6, and evenly distributes water around the sedimentation tank 2 through the reflective baffle 7. After the wastewater is collected at the bottom layer of the sedimentation tank 2, it flows upward, completes pre-precipitation after being blocked by the water distribution orifice plate 8, and then flows up to the upper layer of the sedimentation tank 2 through the one-way long-handled water cap 9, and then precipitates through the inclined plate packing layer 10, and is collected by the overflow weir 11 and discharged from the water outlet 12. The flocs accumulated at the bottom layer of the sedimentation tank 2 are discharged through the mud discharge port 13. When the system needs to clean the inclined plate packing layer 10, the pressure cleaning water enters from the cleaning water inlet 14, and after being distributed by the cleaning water distribution pipe 15, it is evenly flushed onto the inclined plate packing layer 10 and the water distribution orifice plate 8, so that the deposited flocs are melted into the water and flow to the bottom of the sedimentation tank 2 through the water distribution guide tube 6, and then discharged through the mud discharge port 13. When the equipment in the flocculation reaction tank 1 is overhauled, the wastewater can be discharged from the emptying port 16.

[0034] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An efficient mud-water separation and sedimentation device, characterized in that: The utility model comprises a flocculation area, a sedimentation area, a water inlet, a water distribution guide cylinder, a cleaning device, a water outlet and a mud discharge port. A water inlet is arranged at the bottom of one side of the flocculation area, a sedimentation area is arranged at the side of the flocculation area away from the water inlet, a water distribution guide cylinder is arranged in the sedimentation area, the flocculation area is connected with the water distribution guide cylinder, a water outlet is arranged at the top of the sedimentation area away from the flocculation area, a mud discharge port is arranged at the bottom of the sedimentation area, and a cleaning device is arranged inside the sedimentation area.

2. A high-efficiency mud-water separation and sedimentation device according to claim 1, characterized in that: The flocculation area includes a flocculation reaction tank, a water-blocking baffle and an agitator. The water-blocking baffle divides the flocculation reaction tank into a flocculation tank and a water distribution trough. An agitator is provided inside the flocculation tank. A water inlet is provided at the bottom of one side of the flocculation tank. An emptying port is provided at the bottom of the flocculation tank. The water distribution trough is connected to a water distribution guide tube near the sedimentation tank.

3. The high-efficiency mud-water separation and sedimentation device according to claim 2 is characterized in that: The sedimentation area includes a sedimentation tank, a reflective baffle, a water distribution orifice plate, a one-way long-handled water cap, an inclined plate filler layer and an overflow weir. A water distribution guide tube is provided in the sedimentation tank, a reflective baffle is installed at the bottom of the water distribution guide tube, a water distribution orifice plate is installed in the sedimentation tank, a number of one-way long-handled water caps are installed on the water distribution orifice plate, an inclined plate filler layer is provided above the sedimentation tank, an overflow weir is provided above the inclined plate filler layer, and a water outlet is provided on the pool wall of the sedimentation tank at the same level as the overflow weir.

4. The high-efficiency mud-water separation and sedimentation device according to claim 3 is characterized in that: The cleaning device includes a cleaning water inlet and a cleaning water distribution pipe. The cleaning water inlet is provided on the pool wall between the water distribution orifice plate and the inclined plate filler layer. The cleaning water distribution pipe is provided between the water distribution orifice plate and the inclined plate filler layer. The cleaning water distribution pipe is connected to the cleaning water inlet.

5. The high-efficiency mud-water separation and sedimentation device according to claim 3 is characterized in that: The bottom of the sedimentation tank is an inverted trapezoidal structure, and the water distribution orifice plate is arranged on the long side of the inverted trapezoid.

6. The high-efficiency mud-water separation and sedimentation device according to claim 1 is characterized in that: The water distribution guide tube is in a "T" shape.

7. The high-efficiency mud-water separation and sedimentation device according to claim 3 is characterized in that: Brackets are installed at the bottom of the flocculation reaction tank and the sedimentation tank.

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