Multi-source diluting deep treatment device

Abstract

The utility model discloses a multi-source dilution advanced treatment device and relates to the technical field of sewage treatment. An inlet of the booster pump A is connected with a water inlet pipeline, an outlet of the booster pump A is connected to the upper part of the reaction tank, a stirrer is arranged in the reaction tank, a PAM dosing device is arranged at the upper part of the reaction tank, a dosing pipeline of the PAM dosing device enters the reaction tank, the lower part of the reaction tank is connected with a sedimentation tank through a channel, inclined plate filler is arranged in the sedimentation tank, and an effluent weir is arranged at the upper part of the other side of the sedimentation tank; the outlet of the booster pump B is connected with a softening water inlet pipeline. Compared with the prior art, the device has the beneficial effects that firstly, solid suspended matters and most of sedimentable salts in water are removed through dosing flocculation precipitation, then sewage is softened to meet the water quality requirement, backwashing water is reduced into saline water through dosing, meanwhile, a solid phase in the water is removed, the backwashing water is recycled, and the service life of the backwashing water is prolonged. A large amount of backwashing water cost in common sewage treatment is saved, and the treatment cost is further reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field especially to multi-source dilution depth treatment device. BACKGROUND

[0002] Since oilfield enters the period of three element extraction, a large amount of water source is needed for diluting polymer mother liquor, generally using tap water as water source, single water source and high cost, Daqing city where Daqing oilfield is located is called hundred lakes city, there are many lakes in the local area, some configuration stations are adjacent to lakes, lake water can be pumped in rainy season to solve water source problem and reduce configuration cost, but the soil in Daqing area is mostly saline-alkali soil, the mineralization degree (calcium ion) of sewage in lakes is over standard, and cannot be directly used as dilution water source of polymer mother liquor. CONTENT OF UTILITY MODEL

[0003] In order to solve the problem of single water source for configuring polymer mother liquor in the prior art Daqing oilfield, the utility model provides multi-source dilution depth treatment device.

[0004] The utility model provides a technical scheme: multi-source dilution depth treatment device includes booster pump A, booster pump A import is connected with sewage pipeline, and the outlet of booster pump A is connected on the upper portion of reaction tank, and the agitator is installed in the reaction tank, and the PAM dosing device is arranged on the upper portion of the reaction tank, and the dosing pipeline of PAM dosing device enters the reaction tank, and the passage is connected with the setting tank in the lower portion of the reaction tank, and the inclined plate filler is arranged in the setting tank, and the water weir is arranged on the upper portion of the other side of the setting tank, and the pipeline of water weir is connected with the inlet of booster pump B, and the outlet of booster pump B is connected with the softened water inlet pipeline, and the softened water inlet pipeline is connected with the softening tank, and the resin filler is filled in the softening tank, and the soft water discharge pipeline of softening tank is connected with the water storage tank, and the pipeline of water storage tank is connected with the inlet of booster pump C;

[0005] The softening tank has backwash water inlet pipeline and backwash water outlet pipeline, and the backwash water outlet pipeline is connected to the upper portion of the recovered water tank, and the sodium carbonate dosing device is arranged on the upper portion of the recovered water tank, and the dosing pipeline of sodium carbonate dosing device enters the recovered water tank, and the pipeline of recovered water tank bottom is connected with the inlet of booster pump D, and the outlet of booster pump D is connected with the mud inlet of plate-and-frame filter press, and the water outlet pipeline of plate-and-frame filter press is connected to the upper portion of salt water tank, and the pipeline of salt water tank bottom is connected with booster pump E, and the outlet of booster pump E is connected with backwash water inlet pipeline.

[0006] The upper portion of salt water tank is installed with spiral conveyor, and the upper portion of spiral conveyor is equipped with hopper, and the hopper is filled with sodium chloride particles, and the upper portion of salt water tank is provided with feeding port, and the lower portion outlet of spiral conveyor is arranged above the feeding port of salt water tank.

[0007] The bottom of setting tank has mud discharge pipeline, and the valve is arranged on the mud discharge pipeline, and the other end of mud discharge pipeline is connected with the mud inlet of plate-and-frame filter press.

[0008] The utility model discloses beneficial effect is: the utility model discloses first through dosing flocculation precipitation removal solid -suspended matter and most of the sedimentable salt in water, then the sewage is softened to reach water quality requirement again, through dosing makes the backwash water reduction into brine, removes the solid phase in water simultaneously, the backwash water of recycling use, has saved the backwash water cost of a large amount in the ordinary sewage treatment, further reduced the processing cost. BRIEF DESCRIPTION OF DRAWINGS

[0009] Attached Figure 1 It is the structure schematic diagram of the utility model.

[0010] In the drawing 1 - booster pump A, 2 - reaction pool, 3 - PAM dosing device, 4 - sedimentation tank, 5 - booster pump B, 6 - softening water pipeline, 7 - softening tank, 8 - backwash drainage pipeline, 9 - soft water discharge pipeline, 10 - backwash water pipeline, 11 - water storage tank, 12 - booster pump C, 13 - sewage pipeline, 14 - recovery water tank, 15 - sodium carbonate dosing device, 16 - booster pump D, 17 - plate and frame filter press, 18 - brine tank, 19 - salt conveying machine, 20 - booster pump E, 21 - sludge discharge pipeline. DETAILED DESCRIPTION

[0011] As Figure 1 Shown, multi-source dispensing depth treatment device includes booster pump A1, booster pump A1 import connection sewage pipeline 13, booster pump A1 outlet is connected on reaction pool 2 upper portion, is installed with agitator in reaction pool 2, is equipped with PAM dosing device 3 on reaction pool 2 upper portion, PAM dosing device 3 has dosing pipeline into reaction pool 2, reaction pool 2 lower portion has channel connection sedimentation tank 4, is equipped with inclined plate filler in sedimentation tank 4, the other side upper portion of sedimentation tank 4 is equipped with water weir, water weir has pipeline connection booster pump B 5 import, booster pump B 5 outlet connects softening water pipeline 6, softening water pipeline 6 connects softening tank 7, is filled with resin filler in softening tank 7, and soft water discharge pipeline 9 of softening tank 7 connects water storage tank 11, and water storage tank 11 has pipeline connection booster pump C 12 import;

[0012] Softening tank 7 has backwash water pipeline 10 and backwash drainage pipeline 8, and backwash drainage pipeline 8 is connected to the upper portion of recovery water tank 14, and sodium carbonate dosing device 15 is equipped on recovery water tank 14, and sodium carbonate dosing device 15 has dosing pipeline into recovery water tank 14, and pipeline connection booster pump D 16 import is in the bottom of recovery water tank 14, and booster pump D 16 outlet connects the sludge inlet of plate and frame filter press 17, and water pipeline of plate and frame filter press 17 is connected to the upper portion of brine tank 18, and pipeline connection booster pump E 20 is in the bottom of brine tank 18, and booster pump E 20 outlet connects backwash water pipeline 10.

[0013] The lake sewage is pumped into the reaction tank 2 by the booster pump A1, the PAM dosing device 3 adds polymer solution into the reaction tank 2, the polymer solution reacts with the sewage, and the suspended solids in the sewage form flocs, and the sewage containing the flocs enters the sedimentation tank 4, under the action of the inclined plate filler, the flocs are settled at the bottom of the sedimentation tank 4, the solid suspended solids and most of the precipitable salts in the water are removed through dosing flocculation and sedimentation, and the treatment load of the subsequent process section can be reduced through the treatment of the process section;

[0014] The effluent from the sedimentation tank 4 enters the softening tank 7, the sodium chloride ions in the resin exchange with the calcium and magnesium ions in the sewage, so that the treated water meets the water quality requirements for polymer mother liquor preparation and dilution, the sewage is softened and then enters the water storage tank 11 for use, the backwash water of the softening tank 7 contains high calcium and magnesium ions, the backwash water is discharged into the recovery water tank 14, sodium carbonate solution is added into the recovery water tank to react with the calcium and magnesium ions in the sewage to produce solid calcium carbonate, magnesium carbonate and sodium chloride, the sewage is filtered by the plate and frame filter press 17 to remove the solid phase, and the sewage containing sodium chloride enters the brine tank 18 for repeated use.

[0015] The utility model discloses a sewage treatment device, which comprises a reaction tank, a PAM dosing device, a sedimentation tank, a softening tank, a water storage tank, a recovery water tank, a plate and frame filter press and a brine tank.

[0016] The utility model discloses a sewage treatment device, which comprises a reaction tank, a PAM dosing device, a sedimentation tank, a softening tank, a water storage tank, a recovery water tank, a plate and frame filter press and a brine tank.

[0017] The bottom of the sedimentation tank 4 is provided with a sludge discharge pipeline 21, the sludge discharge pipeline 21 is provided with a valve, and the other end of the sludge discharge pipeline 21 is connected to the sludge inlet of the plate and frame filter press 17.

Claims

1. A multi-source dilution deep processing device, comprising a booster pump A(1), characterized in that: The inlet of booster pump A (1) is connected to the sewage pipeline (13), and the outlet of booster pump A (1) is connected to the upper part of the reaction tank (2). A stirrer is installed in the reaction tank (2). A PAM dosing device (3) is installed in the upper part of the reaction tank (2). A dosing pipeline of the PAM dosing device (3) enters the reaction tank (2). A channel in the lower part of the reaction tank (2) connects to the sedimentation tank (4). Inclined plate packing is installed in the sedimentation tank (4). An outlet weir is installed on the upper part of the other side of the sedimentation tank (4). A pipeline of the outlet weir connects to the inlet of booster pump B (5). The outlet of booster pump B (5) is connected to the softening inlet pipeline (6). The softening inlet pipeline (6) connects to the softening tank (7). The softening tank (7) is filled with resin packing. The soft water discharge pipeline (9) of the softening tank (7) connects to the storage tank (11). A pipeline of the storage tank (11) connects to the inlet of booster pump C (12). The softening tank (7) has a backwash inlet pipeline (10) and a backwash outlet pipeline (8). The backwash outlet pipeline (8) is connected to the upper part of the recovery water tank (14). The recovery water tank (14) is equipped with a sodium carbonate dosing device (15). The sodium carbonate dosing device (15) has a dosing pipeline that enters the recovery water tank (14). The bottom of the recovery water tank (14) has a pipeline connected to the inlet of the booster pump D (16). The outlet of the booster pump D (16) is connected to the sludge inlet of the plate and frame filter press (17). The outlet pipeline of the plate and frame filter press (17) is connected to the upper part of the brine tank (18). The bottom of the brine tank (18) has a pipeline connected to the booster pump E (20). The outlet of the booster pump E (20) is connected to the backwash inlet pipeline (10).

2. The multi-source dilution deep processing device according to claim 1, characterized in that: A screw conveyor (19) is installed on the upper part of the brine tank (18). A hopper is provided on the upper part of the screw conveyor (19), and the hopper is filled with sodium chloride particles. A feed inlet is opened on the upper part of the brine tank (18), and the lower outlet of the screw conveyor (19) is located above the feed inlet of the brine tank (18).

3. The multi-source dilution deep processing device according to claim 1, characterized in that: The sedimentation tank (4) has a sludge discharge pipeline (21) at the bottom. The sludge discharge pipeline (21) is equipped with a valve. The other end of the sludge discharge pipeline (21) is connected to the sludge inlet of the plate and frame filter press (17).

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