Sludge thickening tank for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment equipment, in particular to a sludge concentration tank for sewage treatment, which comprises a sludge concentration tank main body, a support outer shell arranged on the outer side of the sludge concentration tank main body, and a water purification tank arranged between the sludge concentration tank main body and the support outer shell, a plurality of overflow ports communicated with the water purification tank are formed in the top of the sludge concentration tank main body, sludge filter screen cylinder pieces matched with the overflow ports are arranged on the inner side of the sludge concentration tank main body, a first water distribution ring pipe is arranged at the top in the water purification tank, and a water suction pump is arranged at the top of the supporting cross beam and provided with a water outlet pipe communicated with the first water distribution ring pipe; a plurality of flushing water pipes extending into the sludge filter screen cylinder part are arranged on the inner side of the first water distribution ring pipe. Compared with the prior art, the sludge thickening tank has the advantages that the outer shell is arranged on the outer side of the traditional sludge thickening tank, and a plurality of sludge filter screen cylinder pieces and a back flushing structure are arranged, so that the purified water can be filtered and back flushed while being discharged, and the sludge can be prevented from overflowing.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment equipment, in particular to a sludge concentration tank for sewage treatment. Background Art

[0002] Wastewater treatment is the process of purifying sewage so that it meets the water quality requirements for discharge into a water body or reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, catering, etc., and is increasingly entering the daily lives of ordinary people.

[0003] In most sewage treatment processes, the more important and common equipment is the sludge thickening tank. Generally, a circular sewage tank is used to add flocculants to allow the sludge in the sewage to settle quickly, and then the clean water overflows from the top. However, this requires controlling the rate of water inlet and outlet, otherwise the sludge will easily overflow. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a new type of sludge concentration tank for sewage treatment in view of the disadvantage that sludge is easy to overflow in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides a technical solution as follows: a sludge thickening tank for sewage treatment, comprising a sludge thickening tank body, wherein a sewage water inlet cylinder is connected inside the sludge thickening tank body, a sewage water inlet pipe connected to the sewage water inlet cylinder is connected in the middle of one side of the sludge thickening tank body, a supporting crossbeam is connected to the top of the sludge thickening tank body, a driving motor is connected in the middle of the top of the supporting crossbeam, a stirring shaft is connected to the bottom of the sludge thickening tank body at the bottom power end of the driving motor, the stirring shaft is located below the sewage water inlet cylinder and is connected to a plurality of scrapers on the outside, a manhole is connected to the bottom of the sludge thickening tank body, a sewage pipe is connected to one side of the manhole, a sewage pump is connected to the sewage pipe, a supporting outer shell is connected to the outside of the sludge thickening tank body, a clean water tank is provided between the sludge thickening tank body and the supporting outer shell, a plurality of overflow ports connected to the clean water tank are provided on the top of the sludge thickening tank body, and a sludge filter cylinder matching the overflow port is connected to the inside of the sludge thickening tank body;

[0006] A first water distribution ring pipe is connected to the top of the clean water tank, a water pump is connected to the top of the supporting beam, the water pump is connected to a water suction pipe connected to the clean water tank and a water outlet pipe connected to the first water distribution ring pipe, a plurality of flushing water pipes extending into the sludge filter cylinder are connected to the inner side of the first water distribution ring pipe, and a clean water drainage pipe connected to the clean water tank is connected to the bottom of the supporting outer shell.

[0007] Furthermore, the flushing water pipe is located on the inner side of the sludge filter screen cylinder and is connected to a flushing through hole, so as to facilitate the full flushing of the sludge filter screen cylinder.

[0008] Furthermore, a plurality of sand guiding holes are connected to the bottom of the sewage inlet cylinder to facilitate the operation of guiding out the sediment.

[0009] Furthermore, a second water diversion ring pipe is connected to the bottom of the supporting beam, a flocculant input pipe is connected to the top of the second water diversion ring pipe, and a plurality of diversion pipes extending into the sewage inlet cylinder are connected to the bottom of the second water diversion ring pipe to facilitate full contact between the flocculant and the sewage.

[0010] Furthermore, a laser rangefinder is connected to one side of the bottom of the supporting beam to facilitate the detection of sediment thickness.

[0011] The utility model has the advantages of a sludge thickening tank for sewage treatment compared with the prior art in that the utility model arranges an outer shell outside the traditional sludge thickening tank, and arranges multiple sludge filter cylinders and backwashing structures to ensure that clean water is discharged while filtering and backwashing, thereby preventing sludge overflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a first structural schematic diagram of a sludge concentration tank for sewage treatment of the utility model.

[0013] Figure 2 This is a second structural schematic diagram of a sludge concentration tank for sewage treatment according to the utility model.

[0014] Figure 3 The utility model is a first cross-sectional structural schematic diagram of a sludge concentration tank for sewage treatment.

[0015] Figure 4 It is a second cross-sectional structural schematic diagram of a sludge thickening tank for sewage treatment of the utility model.

[0016] As shown in the figure: 1. Main body of sludge thickening tank; 2. Sewage inlet cylinder; 3. Sewage inlet pipe; 4. Support beam; 5. Driving motor; 6. Stirring shaft; 7. Scraper; 8. Manhole; 9. Sewage pipe; 10. Sewage pump; 11. Support outer shell; 12. Clean water tank; 13. Overflow port; 14. Sludge filter cylinder; 15. Suction pump; 16. Suction pipe; 17. Outlet pipe; 18. First water distribution ring pipe; 19. Flushing water pipe; 20. Flushing through hole; 21. Sand guide through hole; 22. Second water distribution ring pipe; 23. Flocculant input pipe; 24. Diversion pipe; 25. Laser rangefinder; 26. Clean water drainage pipe. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0018] Combined with Figure 1-4 A sludge thickening tank for sewage treatment comprises a sludge thickening tank body 1, wherein a sewage water inlet cylinder 2 is connected inside the sludge thickening tank body 1, and a plurality of sand guide holes 21 are connected at the bottom of the sewage water inlet cylinder 2, and a sewage water inlet pipe 3 connected to the sewage water inlet cylinder 2 is connected at the middle of one side of the sludge thickening tank body 1, and a supporting crossbeam 4 is connected at the top of the sludge thickening tank body 1, and a driving motor 5 is connected at the middle of the top of the supporting crossbeam 4, and a stirring shaft 6 is connected at the bottom power end of the driving motor 5, which passes through the sewage water inlet cylinder 2 and extends to the bottom of the sludge thickening tank body 1, and the stirring shaft 6 is located below the sewage water inlet cylinder 2 and is connected to a plurality of scrapers 7 on the outside, and the driving motor 5 drives the stirring shaft 6 and the scrapers 7 to rotate , which can ensure the rapid fusion of flocculants and prevent sludge from sticking. The bottom of the sludge thickening tank body 1 is connected with a manhole 8, one side of the manhole 8 is connected with a sewage pipe 9, the sewage pipe 9 is connected with a sewage pump 10, the bottom of the supporting beam 4 is connected with a second water diversion ring pipe 22, the top of the second water diversion ring pipe 22 is connected with a flocculant input pipe 23, the bottom of the second water diversion ring pipe 22 is connected with a plurality of diversion pipes 24 extending into the sewage inlet cylinder 2, and one side of the bottom of the supporting beam 4 is connected with a laser rangefinder 25. This is a common sludge thickening tank, through which sewage enters the sewage inlet cylinder 2 and flocculants are added, and then the silt quickly condenses and settles. When the sludge reaches a certain thickness, the sewage pump 10 is started to extract the sludge.

[0019] Combined with Figure 1-4 The outer side of the sludge concentration tank body 1 is connected to a supporting outer shell 11, a clean water tank 12 is provided between the sludge concentration tank body 1 and the supporting outer shell 11, a plurality of overflow ports 13 connected to the clean water tank 12 are provided on the top of the sludge concentration tank body 1, and a sludge filter cylinder 14 matching the overflow ports 13 is connected to the inner side of the sludge concentration tank body 1;

[0020] In the specific implementation: the sludge settles, and the top is clean water, which overflows into the clean water tank 12 through the overflow port 13. However, direct overflow may be mixed with too much sludge, and often requires multiple sludge concentration tanks to operate. However, the present application can filter the sludge by setting a sludge filter cylinder 14, thereby preventing the sludge from flowing out of the overflow port 13.

[0021] Combined with Figure 1-4A first water distribution ring pipe 18 is connected to the top of the clean water tank 12, a water pump 15 is connected to the top of the supporting beam 4, the water pump 15 is connected to a water suction pipe 16 connected to the clean water tank 12 and a water outlet pipe 17 connected to the first water distribution ring pipe 18, a plurality of flushing water pipes 19 extending into the sludge filter screen cylinder 14 are connected to the inner side of the first water distribution ring pipe 18, a clean water drainage pipe 26 connected to the clean water tank 12 is connected to the bottom of the supporting outer shell 11, and the flushing water pipe 19 is located on the inner side of the sludge filter screen cylinder 14 and is connected to a flushing through hole 20.

[0022] In specific implementation: because there is a lot of sludge, if the sludge filter mesh cylinder 14 is directly set, the sludge will directly stick to the outside of the sludge filter mesh cylinder 14. By setting a water pump 15, the clean water in the clean water tank 12 can be extracted. The water pump 15 is started regularly, and the water flows into the first water distribution ring pipe 18 through the water pump. The sludge filter mesh cylinder 14 is backwashed from the inside to the outside through the flushing water pipe 19, thereby preventing excessive sludge from sticking.

[0023] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A sludge thickening tank for sewage treatment, comprising a sludge thickening tank body (1), wherein the sludge thickening tank body (1) is internally connected with a sewage water inlet cylinder (2), a sewage water inlet pipe (3) communicating with the sewage water inlet cylinder (2) is connected to the middle of one side of the sludge thickening tank body (1), a supporting crossbeam (4) is connected to the top of the sludge thickening tank body (1), a driving motor (5) is connected to the middle of the top of the supporting crossbeam (4), a stirring shaft (6) is connected to the bottom power end of the driving motor (5) and passes through the sewage water inlet cylinder (2) and extends to the bottom of the sludge thickening tank body (1), the stirring shaft (6) is located below the sewage water inlet cylinder (2) and is connected to the outside with a plurality of scrapers (7), a manhole (8) is connected to the bottom of the sludge thickening tank body (1), a sewage pipe (9) is connected to one side of the manhole (8), and a sewage pump (10) is connected to the sewage pipe (9), characterized in that: The outer side of the sludge concentration tank body (1) is connected to a supporting outer shell (11); a clean water tank (12) is provided between the sludge concentration tank body (1) and the supporting outer shell (11); a plurality of overflow ports (13) connected to the clean water tank (12) are provided on the top of the sludge concentration tank body (1); and a sludge filter cylinder (14) matching the overflow ports (13) is connected to the inner side of the sludge concentration tank body (1); A first water distribution ring pipe (18) is connected to the top of the clean water tank (12), a water pump (15) is connected to the top of the support beam (4), the water pump (15) is connected to a water pump pipe (16) connected to the clean water tank (12) and a water outlet pipe (17) connected to the first water distribution ring pipe (18), a plurality of flushing water pipes (19) extending into the sludge filter cylinder (14) are connected to the inner side of the first water distribution ring pipe (18), and a clean water discharge pipe (26) connected to the clean water tank (12) is connected to the bottom of the support outer shell (11).

2. A sludge concentration tank for sewage treatment according to claim 1, characterized in that: The flushing water pipe (19) is located inside the sludge filter screen cylinder (14) and is connected to a flushing through hole (20).

3. A sludge concentration tank for sewage treatment according to claim 1, characterized in that: The bottom of the sewage inlet cylinder (2) is connected to a plurality of sand guide holes (21).

4. A sludge concentration tank for sewage treatment according to claim 1, characterized in that: The bottom of the supporting crossbeam (4) is connected to a second water diversion ring pipe (22), the top of the second water diversion ring pipe (22) is connected to a flocculant input pipe (23), and the bottom of the second water diversion ring pipe (22) is connected to a plurality of diversion pipes (24) extending into the sewage inlet cylinder (2).

5. A sludge concentration tank for sewage treatment according to claim 1, characterized in that: A laser rangefinder (25) is connected to one side of the bottom of the supporting crossbeam (4).

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