Sewage treatment tank with sludge scraping function

Abstract

The utility model relates to the technical field of sedimentation tanks, and discloses a sewage treatment tank with a sludge scraping function, which comprises a sedimentation tank body, a beam frame fixedly mounted in the sedimentation tank body, an annular overflow plate fixedly mounted on the inner side of the sedimentation tank body, and a driving mechanism fixedly mounted on the beam frame, the driving mechanism is electrically connected with an external controller through a connecting line, a water inlet pipe is fixedly installed at the position, below the overflow plate, in the sedimentation tank body, a sludge discharge pipe is fixedly installed at the bottom of the sedimentation tank body, a sludge scraping frame is fixedly installed at the output end of the driving mechanism, a plurality of sludge scraping mechanisms are fixedly installed at the lower end of the sludge scraping frame, and each sludge scraping mechanism comprises a sealing square pipe. The multiple mud scraping mechanisms are arranged below the mud scraping frame, each mud scraping mechanism is composed of a sealing square pipe, a side plate, a mud scraping plate, a telescopic shaft and the like, the telescopic shafts are inserted into sealing rings in shaft holes in a penetrating mode, the lower ends of the mud scraping plates can make contact with the inner bottom of the sedimentation tank body all the time by means of the acting force of compression springs, and therefore the mud scraping effect is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of sedimentation tank technology, and in particular to a sewage treatment tank with sludge scraping function. Background Technology

[0002] Sedimentation tanks are important facilities widely used in wastewater treatment, chemical industry, medicine and other fields. They are mainly used to remove suspended solids from water and purify water quality. By utilizing the natural sedimentation or coagulation sedimentation of water, suspended solids gradually sink to the bottom of the tank under the action of gravity, while clear water gradually rises and is discharged from the tank.

[0003] The sludge scraping mechanism in a sedimentation tank is a mechanical device used to remove sludge from the bottom of the sedimentation tank. It typically consists of a drive unit, a scraping device, a transmission unit, and a support structure. The drive unit provides power to move the scraping device within the sedimentation tank. Sludge scraping devices come in various forms, commonly including scrapers and scraper arms. They are in close contact with the bottom of the sedimentation tank, scraping the settled sludge towards a specific area for discharge. However, after a period of use, the scraper may develop gaps with the bottom of the sedimentation tank due to wear, deformation, or improper adjustment. These gaps lead to unsatisfactory scraping results, incomplete sludge removal, and some sludge remaining at the bottom of the tank. This not only affects the treatment efficiency of the sedimentation tank but may also lead to sludge accumulation, foul odor, and even affect the normal operation of the entire wastewater treatment system. Utility Model Content

[0004] The purpose of this invention is to provide a sewage treatment tank with a sludge scraping function, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A wastewater treatment tank with a sludge scraping function includes a sedimentation tank body. A beam frame is fixedly installed inside the sedimentation tank body. An annular overflow plate is also fixedly installed on the inner side of the sedimentation tank body. A drive mechanism is fixedly installed on the beam frame, and the drive mechanism is electrically connected to an external controller via a connecting wire. An inlet pipe is fixedly installed inside the sedimentation tank body below the overflow plate. A sludge discharge pipe is fixedly installed at the bottom of the sedimentation tank body. A sludge scraping frame is fixedly installed at the output end of the drive mechanism. Multiple sludge scraping mechanisms are fixedly installed at the lower end of the sludge scraping frame. Each sludge scraping mechanism includes a sealing square tube. Multiple shaft holes are opened at the lower end of the sealing square tube. Sealing rings are fitted into the shaft holes. A side plate is fixedly installed at the lower end of the sealing square tube near the shaft holes. A sludge scraping plate is provided on one side of the side plate. The sludge scraping plate is movably installed on one side of the side plate and located below the sealing square tube via a telescopic shaft.

[0007] As a further preferred embodiment of this utility model, a plurality of guide shafts are fixedly installed at the top of the sealed square tube, and the guide shafts are located above the corresponding shaft holes. Setting multiple guide shafts inside the sealed square tube can make the vertical and radial movement of the telescopic shaft more stable.

[0008] As a further preferred embodiment of this utility model, an annular groove is provided on the outer side of the sealing ring, and the annular groove is fitted into the inner side of the shaft hole. The sealing ring can prevent sewage and sludge in the sedimentation tank from entering the sealed square tube when the telescopic shaft moves vertically and radially inside it.

[0009] As a further preferred embodiment of this utility model, a positioning groove is provided at the upper end of the telescopic shaft, a telescopic groove is provided at the bottom of the positioning groove, and multiple air grooves are provided on the inner side of the telescopic groove. The upper end of the telescopic shaft is inserted into the sealing ring, and the telescopic groove is inserted into the guide shaft. After the telescopic groove inside the telescopic shaft is inserted into the guide shaft, the multiple air grooves provided on the inner side of the telescopic groove can prevent the gas from being unable to escape after the inner cavity of the telescopic groove becomes smaller, thus preventing the telescopic shaft from moving.

[0010] As a further preferred embodiment of this utility model, a compression spring is sleeved on the outside of the guide shaft, the upper end of the compression spring abuts against the top of the sealed square tube, and the lower end of the guide shaft abuts against the bottom of the positioning groove.

[0011] As a further preferred embodiment of this utility model, a plurality of connecting plates are fixedly installed on one side of the sludge scraper. The upper end of the connecting plate is fixedly installed on the lower end of the corresponding telescopic shaft. After the telescopic shaft is inserted into the sealed square tube, the lower end of the sludge scraper can always be in contact with the bottom of the sedimentation tank by means of the force of the compression spring, thereby ensuring the sludge scraping effect.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this invention, multiple sludge scraping mechanisms are arranged below the sludge scraper frame. Each sludge scraping mechanism consists of a sealing square tube, side plates, a scraper blade, and a telescopic shaft. By inserting the telescopic shaft into a sealing ring inside the shaft hole and using the force of a compression spring, the lower end of the scraper blade can always be in contact with the bottom of the sedimentation tank, thus ensuring the sludge scraping effect. Furthermore, the sealing square tube and sealing ring prevent sludge or other impurities in the sedimentation tank from affecting the deformation of the compression spring and the radial movement of the telescopic shaft, ensuring the stability of the scraper blade operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 for Figure 1Enlarged view of point A in the middle;

[0016] Figure 3 This is a schematic diagram of the sludge scraping mechanism of this utility model;

[0017] Figure 4 This is a cross-sectional view of the sludge scraping mechanism of this utility model;

[0018] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0019] In the diagram: 1. Sedimentation tank body; 2. Beam frame; 3. Overflow plate; 4. Drive mechanism; 5. Sludge discharge pipe; 6. Water inlet pipe; 7. Sludge scraper; 8. Sludge scraping mechanism; 9. Sealing square tube; 10. Side plate; 11. Sludge scraper; 12. Shaft hole; 13. Sealing ring; 14. Connecting plate; 15. Telescopic shaft; 16. Positioning groove; 17. Telescopic groove; 18. Air groove; 19. Guide shaft; 20. Compression spring. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figures 1-5 As shown, the present invention provides a sewage treatment tank with sludge scraping function, including a sedimentation tank body 1, a beam frame 2 fixedly installed inside the sedimentation tank body 1, an annular overflow plate 3 fixedly installed inside the sedimentation tank body 1, a drive mechanism 4 fixedly installed on the beam frame 2, and the drive mechanism 4 electrically connected to an external controller through a connecting line, an inlet pipe 6 fixedly installed inside the sedimentation tank body 1 below the overflow plate 3, a sludge discharge pipe 5 fixedly installed at the bottom of the sedimentation tank body 1, a sludge scraper 7 fixedly installed at the output end of the drive mechanism 4, and multiple sludge scraping mechanisms 8 fixedly installed at the lower end of the sludge scraper 7, each sludge scraping mechanism 8 including a sealing square tube 9, multiple shaft holes 12 opened at the lower end of the sealing square tube 9, a sealing ring 13 fitted inside the shaft holes 12, a side plate 10 fixedly installed at the lower end of the sealing square tube 9 near the shaft holes 12, a sludge scraper 11 provided on one side of the side plate 10, and the sludge scraper 11 movably installed on one side of the side plate 10 and located below the sealing square tube 9 via a telescopic shaft 15.

[0022] like Figures 2-5As shown, multiple guide shafts 19 are fixedly installed at the top of the sealed square tube 9, and the guide shafts 19 are located above the corresponding shaft holes 12. The multiple guide shafts 19 inside the sealed square tube 9 make the vertical and radial movement of the telescopic shaft 15 more stable. An annular groove is provided on the outer side of the sealing ring 13, and this annular groove is fitted into the inner side of the shaft hole 12. The sealing ring 13 prevents sewage and sludge from entering the sealed square tube 9 when the telescopic shaft 15 moves vertically and radially inside it. A positioning groove 16 is provided at the upper end of the telescopic shaft 15, and a telescopic groove 17 is provided at the bottom of the positioning groove 16. Multiple air grooves 18 are provided inside the telescopic groove 17. The upper end of the telescopic shaft 15 is inserted into the sealing ring 13, and the telescopic groove 17 is inserted into the guide shaft 19, thus stabilizing the telescopic shaft. After the telescopic groove 17 inside the 15 is inserted into the guide shaft 19, the multiple air slots 18 opened on the inner side of the telescopic groove 17 can prevent the gas from being unable to escape after the inner cavity of the telescopic groove 17 becomes smaller, thus preventing the telescopic shaft 15 from moving. A compression spring 20 is sleeved on the outer side of the guide shaft 19. The upper end of the compression spring 20 abuts against the top of the sealed square tube 9, and the lower end of the guide shaft 19 abuts against the bottom of the positioning groove 16. Multiple connecting plates 14 are fixedly installed on one side of the sludge scraper 11. The upper end of the connecting plate 14 is fixedly installed on the lower end of the corresponding telescopic shaft 15. After the telescopic shaft 15 is inserted into the sealed square tube 9, the force of the compression spring 20 can cooperate with the connecting plate 14 to ensure that the lower end of the sludge scraper 11 is always in contact with the bottom of the sedimentation tank 1, thereby ensuring the sludge scraping effect.

[0023] It should be noted that this utility model is a sewage treatment tank with a sludge scraping function. Sewage is transported to the sedimentation tank 1 through an external pump and inlet pipe 6. After natural gravity sedimentation and the reaction of flocculant, the impurities in the sewage settle to the bottom of the sedimentation tank 1, while the water in the sedimentation tank 1 flows out through overflow plate 3. When it is necessary to clean the sediment in the sedimentation tank 1, the drive mechanism 4 can be activated. Then, the output end of the drive mechanism 4 drives the sludge scraper 7 to rotate, which in turn drives the multiple sealing square tubes 9 at the lower end to rotate synchronously. This causes the sealing square tubes 9 to drive the scraper plate 11 to rotate through the side plate 10. That is, the lower end of the scraper plate 11 moves circumferentially along the bottom contour of the sedimentation tank 1, thereby removing the sediment at the bottom of the sedimentation tank 1. The sludge is scraped and the slope at the bottom of the sedimentation tank 1 towards the sludge discharge pipe 5 is used to concentrate the sediment at the sludge discharge pipe 5. The sludge discharge pipe 5 then uses an external sludge discharge pump to remove the sludge from the sedimentation tank 1. During long-term operation, the lower end of the scraper blade 11 will continuously rub against the bottom of the sedimentation tank 1, which will cause wear on the scraper blade 11. At this time, the force of the compression spring 20 continuously applies downward pressure to the telescopic shaft 15, so that the telescopic shaft 15 applies a continuous downward pressure to the scraper blade 11, which ensures that the lower end of the scraper blade 11 is always in contact with the bottom of the sedimentation tank 1, thus ensuring the sludge scraping effect. The plug-in structure of the telescopic shaft 15 also facilitates the maintenance and replacement of the scraper blade 11 in the future.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment tank with mud scraping function, characterized in that: Including the sedimentation tank body (1), the beam frame (2) is fixedly installed in the sedimentation tank body (1), the overflow plate (3) is also fixedly installed in the inside of the sedimentation tank body (1), the driving mechanism (4) is fixedly installed on the beam frame (2), and the driving mechanism (4) is electrically connected with external controller through connecting line, the water inlet pipe (6) is fixedly installed in the sedimentation tank body (1) and is located below the overflow plate (3), the sludge discharge pipe (5) is fixedly installed at the bottom of the sedimentation tank body (1), the output end of the driving mechanism (4) is fixedly installed with the mud scraping frame (7), the mud scraping frame (7) is fixedly installed with a plurality of mud scraping mechanisms (8) at the lower end, the mud scraping mechanism (8) comprises a sealed square tube (9), a plurality of shaft holes (12) are formed in the lower end of the sealed square tube (9), the shaft hole (12) is clamped with a sealing ring (13), the side plate (10) is fixedly installed at the lower end of the sealed square tube (9) and is close to the shaft hole (12), the side plate (10) is provided with a mud scraping plate (11) on one side, the mud scraping plate (11) is movably installed on one side of the side plate (10) and is located below the sealed square tube (9) through the telescopic shaft (15).

2. The sewage treatment tank with mud scraping function according to claim 1, characterized in that: A plurality of guide shafts (19) are fixedly installed in the sealed square tube (9) and are located above the corresponding shaft hole (12).

3. The sewage treatment tank with mud scraping function according to claim 1, characterized in that: The outer side of the sealing ring (13) is provided with an annular groove, and the annular groove is clamped in the inner side of the shaft hole (12).

4. The sewage treatment tank with mud scraping function according to claim 2, characterized in that: The telescopic shaft (15) is inserted into the sealing ring (13) at the upper end, and the telescopic groove (17) is inserted into the guide shaft (19).

5. The sewage treatment tank with mud scraping function according to claim 4, characterized in that: The outer side of the guide shaft (19) is sleeved with a compression spring (20), the upper end of the compression spring (20) abuts against the inner top of the sealed square tube (9), and the lower end of the guide shaft (19) abuts against the inner bottom of the positioning groove (16).

6. The sewage treatment tank with mud scraping function according to claim 1, characterized in that: The mud scraping plate (11) is fixedly installed with a plurality of connecting plates (14) on one side, and the connecting plate (14) is fixedly installed on the lower end of the corresponding telescopic shaft (15) on one side of the upper end.

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