Energy-saving integrated sewage treatment device

Abstract

The utility model discloses an energy-saving integrated sewage treatment device, which relates to the field of sewage treatment and comprises a flocculation section connected with a water inlet pipe, sewage is introduced from the water inlet pipe, and suspended matters in the sewage are flocculated; the precipitation section is arranged behind the flocculation section, and an inclined plate is arranged in the precipitation section, so that the sewage is preliminarily separated to form a clarification layer and a precipitation layer; the filtering section is arranged behind the precipitation section and is used for introducing water in the clarification layer in the precipitation section and filtering the water, a partition plate is arranged in the filtering section, the upper part of the partition plate is used for collecting filtered water generated by filtering, and the filtered water is discharged through a water outlet pipe; the backwashing device is arranged in the equipment room below the partition plate and comprises dosing equipment for dosing the flocculation section and the filtering section, backwashing equipment for backwashing the filtering section and a water supply pump for discharging filtered water; and the control room is arranged behind the filtering section and is used for carrying out power supply and signal control on the equipment room. The problems of filter material loss and poor water production effect caused by damage of the filter head after long-term use are solved.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, and particularly relates to an energy-saving integrated sewage treatment device. Background Art

[0002] At present, the existing integrated water plant equipment on the market is to transplant the civil water plant process to the integrated water plant, which reduces the land demand to a certain extent. However, using the traditional process flow, including flocculation, sedimentation, and V-shaped filter, it is still necessary to build facilities such as equipment rooms, power distribution rooms, and control rooms to place equipment such as electric control, chemical dosing, and backwashing, and the demand for land is still large.

[0003] In addition, whether it is traditional civil water treatment equipment or existing integrated water treatment equipment on the market, the filtration part still uses a V-shaped filter, and the filter material is in the form of quartz sand, which has a large floor area and poor filtration effect. When using long-stem filter heads, there will be a situation of short-circuit filtration. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies existing in the prior art, and provide an energy-saving integrated sewage treatment device, which is not easy to produce the problem of filtration short-circuit, has high-quality filtered water, and at the same time, the ceramic filter plate has a longer service life, and there will be no problem of filter head damage leading to filter material loss and poor water production effect during long-term use.

[0005] The purpose of the utility model is completed through the following technical solutions: This energy-saving integrated sewage treatment device includes:

[0006] A flocculation section, connected to the water inlet pipe, through which sewage is introduced and the suspended matter in the sewage is flocculated;

[0007] A sedimentation section arranged behind the flocculation section, in which inclined plates are arranged to preliminarily separate the sewage to form a clarification layer and a sedimentation layer;

[0008] A filtration section arranged behind the sedimentation section, used to introduce the water in the clarification layer in the sedimentation section and filter it. A partition is arranged in the filtration section, and the upper part of the partition is used to collect the filtered water generated by filtration, and the filtered water is discharged through the water outlet pipe;

[0009] An equipment room arranged below the partition, including a chemical dosing device for dosing to the flocculation section and the filtration section, a backwashing device for backwashing the filtration section, and a water supply pump for discharging the filtered water; and

[0010] A control room arranged behind the filtration section, used for power supply and signal control of the equipment room.

[0011] As a further technical solution, a ceramic filter material layer, a ceramic filter plate layer, and a water production layer are sequentially arranged from top to bottom in the filtration section, so that the water production layer is located between the ceramic filter plate layer and the partition.

[0012] As a further technical solution, the partition board is bent at 90°, so that the cross-section of the water production layer is an inverted "L" shape, and the lower part of the inverted "L" shape serves as the backwash water layer for storing backwash water.

[0013] As a further technical solution, the chemical dosing equipment includes a PAC dosing pump for dosing to the flocculation section and a sodium hypochlorite dosing pump for dosing to the water production layer.

[0014] As a further technical solution, the backwash equipment includes a backwash fan and a backwash pump. The backwash fan is used for air washing the ceramic filter media layer and the ceramic filter plate layer, and the backwash pump backwashes the ceramic filter media layer with the backwash water.

[0015] As a further technical solution, a backwash drain pipe is also arranged in the filtration section for discharging the water after backwashing. The inlet of the backwash drain pipe is arranged above the ceramic filter media layer. After the outlet of the backwash drain pipe sequentially penetrates through the ceramic filter media layer, the ceramic filter plate layer and the water production layer, it is discharged outwards from the sedimentation section.

[0016] As a further technical solution, the cross-section of the inlet is in the shape of "<>".

[0017] As a further technical solution, the ceramic filter media layer uses ceramic filter media with a particle size of 2 - 5 mm, and the ceramic filter plate layer uses a ceramic filter plate with a pore size of 50 - 200 μm, a thickness of 15 - 20 mm, and a porosity of 30% - 50%.

[0018] As a further technical solution, a plurality of sludge discharge pipes are arranged in both the flocculation section and the sedimentation section.

[0019] As a further technical solution, a plurality of flocculation grids are arranged in the flocculation section.

[0020] The beneficial effects of the present utility model are as follows:

[0021] 1. The improved V-type filter tank process has good filtration effect, no filtration short-circuit problem, and at the same time, a ceramic filter plate is set, reducing the thickness of the filter media layer;

[0022] 2. Integrating the equipment room into the integrated water treatment equipment, the demand for pipelines and cables is small. There is no need to build a new civil engineering equipment room, with a small floor area, a short construction period, and the investment cost is lower than that of civil engineering water treatment and the existing integrated plants on the market;

[0023] 3. A backwash water layer is separated in the integrated water treatment equipment, eliminating the need to set up a separate backwash water tank. The backwash water layer automatically replenishes water, eliminating the need to add additional water replenishing components. Description of the Drawings

[0024] Figure 1This is a schematic structural diagram of the present utility model.

[0025] Figure 2 It is Figure 1 the A-A cross-sectional view of

[0026] Figure 3 It is Figure 1 the B-B cross-sectional view of

[0027] Figure 4 It is a schematic structural layout diagram inside the equipment room.

[0028] Explanation of reference numerals: Flocculation section 100, sedimentation section 200, filtration section 300, control room 400, equipment room 500, water inlet pipe 1, ceramic filter media layer 2, ceramic filter plate layer 3, water production layer 4, water outlet pipe 5, backwash drain pipe 6, backwash water layer 7, sludge discharge pipe 8, PAC dosing pump 9, sodium hypochlorite dosing pump 10, water supply pump 11, backwash fan 12, backwash pump 13, flocculation grid 14, inclined plate 15, partition plate 16, inlet 17. Detailed implementation manners

[0029] The following will introduce the present utility model in detail with reference to the accompanying drawings:

[0030] Embodiment: As shown in the attached Figures 1 to 4 figures, this energy-saving integrated sewage treatment device includes a flocculation section 100, a sedimentation section 200, a filtration section 300, a control room 400, an equipment room 500, a water inlet pipe 1, a ceramic filter media layer 2, a ceramic filter plate layer 3, a water production layer 4, a water outlet pipe 5, a backwash drain pipe 6, a backwash water layer 7, a sludge discharge pipe 8, a PAC dosing pump 9, a sodium hypochlorite dosing pump 10, a water supply pump 11, a backwash fan 12, a backwash pump 13, a flocculation grid 14, an inclined plate 15, a partition plate 16 and an inlet 17.

[0031] Referring to the attached Figure 1 , 2 , after the flocculation section 100 is connected to the water inlet pipe 1, sewage is introduced through the water inlet pipe 1. Preferably, a plurality of flocculation grids 14 are arranged in the flocculation section 100, and the suspended solids in the sewage can be flocculated through the flocculation grids 14. A sedimentation section 200 is arranged behind the flocculation section 100, and an inclined plate 15 is arranged in the sedimentation section 200, and the sewage is preliminarily separated through the inclined plate 15 to form a clarified layer and a sediment layer. Preferably, a plurality of sludge discharge pipes 8 are arranged at the lower parts of both the flocculation section 100 and the sedimentation section 200 to facilitate the discharge of sludge.

[0032] A filtration section 300 is arranged behind the sedimentation section 200, and the water in the clarified layer in the sedimentation section 200 is introduced into the filtration section 300 for filtration. A partition plate 16 is arranged at the lower part of the filtration section 300. As shown in Figure 2 , 3As shown, a ceramic filter media layer 2, a ceramic filter plate layer 3, and a water production layer 4 are sequentially arranged from top to bottom within the filtration section 300, such that the water production layer 4 is located between the ceramic filter plate layer 3 and the partition plate 16. Filtered water generated by filtration can be collected above the partition plate 16, and the filtered water is discharged through the water outlet pipe 5 externally connected to the water production layer 4. Preferably, the partition plate 16 is bent at 90°, such that the cross-section of the water production layer 4 is an inverted "L" shape, and the lower part of this inverted "L" shape serves as a backwash water layer 7, which can store backwash water.

[0033] As Figure 2 , 4 shown, an equipment room 500 is arranged below the partition plate 16. A chemical dosing device, a backwash device, and a water supply pump 11 are arranged within the equipment room 500. Among them, the chemical dosing device includes a PAC dosing pump 9 and a sodium hypochlorite dosing pump 10. The PAC dosing pump 9 is connected to the flocculation section 100 through a dosing pipeline (not shown in the figure), and the sodium hypochlorite dosing pump 10 is connected to the water production layer 4 through another dosing pipeline (not shown in the figure). The backwash device includes a backwash blower 12 and a backwash pump 13. The backwash blower 12 is connected to the ceramic filter media layer 2 and the ceramic filter plate layer 3 through an air supply pipe (not shown in the figure), and can perform air washing on the ceramic filter media layer 2 and the ceramic filter plate layer 3. The backwash pump 13 is connected to the ceramic filter media layer 2 by means of a backwash pipeline (not shown in the figure), and backwashes the ceramic filter media layer 2 with the backwash water stored within the backwash water layer 7. The filtered water is discharged externally from the water outlet pipe 5 under the drive of the water supply pump 11.

[0034] Furthermore, a backwash drain pipe 6 is also arranged within the filtration section 300, which can discharge the water after backwashing. The inlet 17 of this backwash drain pipe 6 is arranged above the ceramic filter media layer 2. Preferably, the cross-section of this inlet 17 is in the shape of "<>". After the outlet of the backwash drain pipe 6 sequentially penetrates through the ceramic filter media layer 2, the ceramic filter plate layer 3, and the water production layer 4, it is discharged externally from the sedimentation section 200. Since the backwash water layer 7 and the water production layer 4 are connected, when the backwash water layer 7 is full of water, the water production layer 4 starts to produce water externally, thus eliminating the need to separately arrange a backwash water tank, effectively reducing the project investment.

[0035] Preferably, the ceramic filter layer 2 uses ceramic filter media with a particle size of 2 - 5 mm. The ceramic filter media is a water treatment filter media processed from high-quality kaolin as raw material through a series of processes such as granulation, high-temperature firing, and screening. Compared with quartz sand filter media, the ceramic filter media is hard and wear-resistant, has uniform particles, well-developed micropores, good surface adsorption and chemical stability, is corrosion-resistant, non-toxic, non-clogging, and has a fast filtration rate. The filtration rate is selected to be 15 - 20 m / h, and the packing thickness is 500 - 800 mm. The ceramic filter plate layer 3 uses ceramic filter plates with a pore size of 50 - 200 μm, a thickness of 15 - 20 mm, and a porosity of 30% - 50%. Using ceramic filter plates to replace long-stem filter heads has a larger filtration area, more uniform filtration, will not cause the problem of short-circuit filtration, has high-quality filtered water production, and at the same time, the service life of the ceramic filter plates is longer, and problems such as filter head damage leading to filter media loss and poor water production effect will not occur during long-term use.

[0036] Furthermore, a control room 400 is arranged behind the filtration section 300. A power distribution cabinet and a PLC cabinet are arranged in the control room 400. The control system is connected to an online operation platform, and functions such as automatic operation, unattended operation, and online monitoring can be realized. It is convenient to supply power and control signals to the equipment room 500.

[0037] The working process of the present utility model:

[0038] The water to be purified enters the flocculation section 100 of the equipment through the water inlet pipe 1. The PAC dosing pump 9 is started to add medicine to the flocculation section 100 to flocculate pollutants such as SS (suspended solids), and then enters the sedimentation section 200. The sedimentation section 200 uses inclined plates 15 (inclined tubes) for sedimentation. The sludge is discharged through the sludge discharge pipe 8. The clarified water enters the filtration section 300, is first filtered through the ceramic filter layer 2, and then filtered through the ceramic filter plate layer 3. The filtered water generated by filtration enters the water production layer 4. First, the backwash water layer 7 is filled to prepare for backwashing. After the backwash water layer 7 is full, the water supply pump 11 is started to make the purified water flow out through the water outlet pipe 5. At the same time, the sodium hypochlorite dosing pump 10 is started to add medicine to the water production layer 4 to ensure the residual chlorine content of the drinking water.

[0039] Backwashing: After filtering for a certain period of time, the water outlet pipe 5 is closed, and the backwash fan 12 is started to conduct air washing on the ceramic filter layer 2 and the ceramic filter plate layer 3; after air washing, the backwash fan 12 is closed, and the backwash pump 13 is started to conduct backwashing on the ceramic filter layer 2; after backwashing is completed, it re-enters the normal filtration process.

[0040] The control room 400 is provided with a power distribution cabinet and a PLC cabinet. The control system is connected to an online operation platform, and functions such as automatic operation, unattended operation, and online monitoring can be realized.

[0041] It is understandable that, for those skilled in the art, equivalent replacements or changes to the technical solutions and inventive concepts of the present utility model should fall within the protection scope of the appended claims of the present utility model.

Claims

1. An energy-saving integrated sewage treatment device, characterized in that: include: The flocculation section (100) is connected to the water inlet pipe (1), the sewage is introduced through the water inlet pipe (1), and the suspended matter in the sewage is flocculated; The sedimentation section (200) is arranged behind the flocculation section (100), and an inclined plate (15) is arranged inside the sedimentation section to initially separate the sewage into a clarification layer and a sedimentation layer; The filtering section (300) is arranged behind the sedimentation section (200) and is used to pass water in the clarified layer in the sedimentation section (200) and filter it. A partition (16) is arranged in the filtering section (300). The part above the partition (16) is used to collect filtered water produced by the filtration. The filtered water is discharged through the water outlet pipe (5). an equipment room (500) disposed below the partition (16), comprising a dosing device for dosing drugs to the flocculation section (100) and the filtration section (300), a backwashing device for backwashing the filtration section (300), and a water supply pump (11) for discharging the filtered water; and The control room (400) disposed behind the filtering section (300) is used to provide power supply and signal control to the equipment room (500).

2. The energy-saving integrated sewage treatment device according to claim 1 is characterized in that: A ceramic filter material layer (2), a ceramic filter plate layer (3) and a water production layer (4) are sequentially arranged in the filter section (300) from top to bottom, so that the water production layer (4) is located between the ceramic filter plate layer (3) and the partition plate (16).

3. The energy-saving integrated sewage treatment device according to claim 2 is characterized in that: The partition (16) is bent at 90 degrees so that the cross section of the water production layer (4) is an inverted "L" shape, and the lower part of the inverted "L" shape serves as a backwash water layer (7) for storing backwash water.

4. The energy-saving integrated sewage treatment device according to claim 3 is characterized in that: The dosing equipment comprises a PAC dosing pump (9) for dosing drugs to the flocculation section (100) and a sub-sodium dosing pump (10) for dosing drugs to the water-producing layer (4).

5. The energy-saving integrated sewage treatment device according to claim 3 is characterized in that: The backwashing equipment comprises a backwashing fan (12) and a backwashing pump (13); the backwashing fan (12) is used to perform air washing on the ceramic filter material layer (2) and the ceramic filter plate layer (3); and the backwashing pump (13) performs backwashing on the ceramic filter material layer (2) using the backwashing water.

6. The energy-saving integrated sewage treatment device according to claim 5 is characterized in that: A backwash drain pipe (6) is also provided in the filtering section (300) for discharging water after backwashing. The inlet (17) of the backwash drain pipe (6) is provided above the ceramic filter material layer (2). The outlet of the backwash drain pipe (6) successively passes through the ceramic filter material layer (2), the ceramic filter plate layer (3) and the water production layer (4) before being discharged from the sedimentation section (200).

7. The energy-saving integrated sewage treatment device according to claim 6 is characterized in that: The cross section of the inlet (17) is in the shape of "<>".

8. The energy-saving integrated sewage treatment device according to claim 2 is characterized in that: The ceramic filter material layer (2) uses ceramic filter material with a particle size of 2-5 mm, and the ceramic filter plate layer (3) uses a ceramic filter plate with a pore size of 50-200 μm, a thickness of 15-20 mm, and a porosity of 30%-50%.

9. The energy-saving integrated sewage treatment device according to claim 1, characterized in that: A plurality of mud discharge pipes (8) are arranged in the flocculation section (100) and the sedimentation section (200).

10. The energy-saving integrated sewage treatment device according to claim 1, characterized in that: A plurality of flocculation grids (14) are arranged in the flocculation section (100).

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