A sedimentation tank for sewage treatment

Abstract

The utility model relates to the technical field of sedimentation tanks, and in particular to a sedimentation tank for sewage treatment, comprising a tank body, a cavity one is provided at the top of the tank body, a cavity two is provided in the middle of the tank body, a cavity three is provided in the lower part of the tank body, the cavity one is communicated with the internal space of the cavity two, a water outlet is fixedly provided at the upper part of one side of the tank body, a sewage discharge rod is fixedly provided at one side of the tank body, the cavity two is communicated with the internal space of the sewage discharge rod, a support plate is slidably provided in the cavity three, a double-headed motor is fixedly provided at the top of the support plate, a rotating rod one is fixedly connected to the upper output end of the double-headed motor, and the top of the rotating rod one extends into the cavity one. The utility model can add sewage to the sedimentation tank again for treatment while treating sludge, thereby improving the efficiency of the device in sewage treatment and improving the practicability of the device.

Description

Technical Field

[0001] The utility model relates to a sedimentation tank for sewage treatment, belonging to the technical field of sedimentation tanks. Background Art

[0002] The main function of the sedimentation tank is to remove suspended matter and some soluble impurities in sewage, while reducing the biological oxygen demand and chemical oxygen demand in sewage. Specifically, the sedimentation tank separates suspended matter from water through physical action. These suspended matter are mainly composed of larger solid particles.

[0003] According to the announcement number CN219290852U, a sedimentation tank for sewage treatment is disclosed, including a sedimentation tank, four water outlet holes evenly distributed in a circumference are opened on the upper part of the inner wall of the sedimentation tank, a first support frame is fixedly installed on the side wall of the sedimentation tank, a filter box is fixedly installed on the upper end of the first support frame, a mud cleaning mechanism for cleaning the mud on the lower inner wall of the sedimentation tank is arranged directly above the sedimentation tank, and a drainage mechanism for discharging treated sewage is arranged on one side of the upper part of the sedimentation tank. A mud pumping mechanism for pumping out the mud precipitated in the sedimentation tank is arranged at the bottom of the sedimentation tank. The utility model adds a sludge cleaning mechanism, arranges a bracket above the sedimentation tank, and a built-in motor drives the rotating shaft below the bracket to rotate. The side wall of the lower end of the rotating shaft is fixedly connected to a scraper plate that fits the inner wall of the sedimentation tank. When the rotating shaft rotates, the scraper plate is driven to rotate to clean the sludge attached to the inner wall of the sedimentation tank, thereby preventing clogging that may be caused by the long-term accumulation of sludge on the inner wall. Although the above device can clean the inner wall of the sedimentation tank, a sludge pump is required to continuously extract the sludge in the sedimentation tank. During this process, sewage cannot be injected into the sedimentation tank again for treatment, which affects the efficiency of sewage treatment. Utility Model Content

[0004] The purpose of the utility model is to provide a sedimentation tank for sewage treatment. The utility model can add sewage to the sedimentation tank again for treatment while treating sludge, thereby improving the efficiency of the device in sewage treatment and improving the practicability of the device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The cam is provided with an axially extending outer surface of the water tank, and the cam is provided with an axially extending outer surface of the water tank, wherein the cam is provided with an axially extending outer surface of the water tank, and the cam is provided with an axially extending outer surface of the water tank.

[0007] Furthermore, cylinders are symmetrically fixed on the inner wall of the top end of the cavity three, and the output ends of the cylinders are fixedly connected to the top end of the support plate.

[0008] Furthermore, a plurality of fixing blocks are fixedly provided in a circular array on the lower outer wall of the base plate, and an insertion rod is fixedly provided on the top of each of the fixing blocks. A plurality of grooves matching the fixing blocks are provided in a circular array on the top inner wall of the cavity 2, and slots matching the insertion rod are provided on the top inner walls of the grooves.

[0009] Furthermore, a second rotating rod is rotatably provided on the inner wall of the top end of the sewage discharge rod, and a plurality of spiral blades are arranged in an array and fixedly sleeved on the second rotating rod.

[0010] Furthermore, a receiving groove is opened in the lower part of the sewage discharge rod and the bottom end of the rotating rod 2 extends into the receiving groove, a sleeve is rotatably provided on the inner wall of the bottom end of the cavity 3, and a rotating rod 3 is slidably inserted into the top end of the sleeve, and the top end of the rotating rod 3 is fixedly connected to the lower output end of the double-headed motor, and pulleys are fixedly sleeved on the rotating rod 3 and the rotating rod 2, and the two pulleys are connected by belt transmission.

[0011] Furthermore, the cross section of the rotating rod three is a polygonal structure.

[0012] Furthermore, a sealing ring matching the rotating rod 1 is fixedly provided on the inner wall of the bottom end of the cavity 3, and a limiting ring is fixedly provided on the rotating rod 1, and the top end of the limiting ring contacts the bottom end of the bottom plate.

[0013] The beneficial effects of the utility model are:

[0014] The utility model is provided with cavity two, bottom plate, scraper rod one and scraper rod two. When in use, after sewage sedimentation is completed and water is discharged, the support plate is pushed downward by the cylinder, and the rotating rod one drives the bottom plate downward through the scraper rod two. At this time, the bottom plate drives the fixed block and the plug rod to move downward. The plug rod and the fixed block can play the role of limiting support for the bottom plate. The rotating rod one is driven to rotate by the double-headed motor, so that the rotating rod one drives the stirring rod, the scraper rod one and the scraper rod two to rotate. The inner wall of the cavity one can be cleaned by the scraper rod one, and the sludge on the bottom plate can be quickly scraped into the cavity by the scraper rod two. The two-way pump is used to pump the sludge into the sedimentation tank, and the two-way pump is used to pump the sludge into the sedimentation tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 This is a front view of a sedimentation tank for sewage treatment according to the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of a sedimentation tank for sewage treatment in the utility model;

[0018] Figure 3 It is a top view of a bottom plate of a sedimentation tank for sewage treatment according to the utility model;

[0019] Figure 4 It is a top view of a rotating rod and a sleeve of a sedimentation tank for sewage treatment of the utility model;

[0020] Numbers in the figure: 1. pool body; 2. cavity one; 3. cavity two; 4. cavity three; 5. water outlet; 6. sewage discharge rod; 7. support plate; 8. double-headed motor; 9. rotating rod one; 10. bottom plate; 11. stirring rod; 12. scraper rod one; 13. scraper rod two; 14. cylinder; 15. fixed block; 16. plug rod; 17. slot; 18. rotating rod two; 19. spiral blade; 20. sleeve; 21. rotating rod three; 22. pulley; 23. belt. DETAILED DESCRIPTION

[0021] 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.

[0022] Example 1 Please refer to Figure 1-Figure 4 , the utility model provides a technical solution:

[0023] A sedimentation tank for sewage treatment, comprising a tank body 1, a cavity 1 2 is provided at the top of the tank body 1, a cavity 2 3 is provided in the middle of the tank body 1, a cavity 3 4 is provided in the lower part of the tank body 1, the cavity 1 2 is communicated with the internal space of the cavity 2 3, a water outlet 5 is fixedly provided at the upper part of one side of the tank body 1, a sewage discharge rod 6 is fixedly provided on one side of the tank body 1, the cavity 2 3 is communicated with the internal space of the sewage discharge rod 6, a support plate 7 is slidably provided in the cavity 3 4, and a support plate 7 is fixedly provided at the top of the support plate 7 A double-headed motor 8, wherein the upper output end of the double-headed motor 8 is fixedly connected with a rotating rod 9, the top end of the rotating rod 9 extends into the cavity 2, the lower rotating sleeve of the rotating rod 9 is provided with a bottom plate 10 matching the cavity 2, a plurality of stirring rods 11 are fixedly arranged in a symmetrical array on the upper portion of the rotating rod 9, a scraper rod 12 is fixedly arranged on the stirring rod 11 on one side, a scraper rod 2 13 is fixedly arranged on the middle portion of the rotating rod 9, and the bottom end of the scraper rod 2 13 abuts against the top end of the bottom plate 10.

[0024] Specifically, Figure 1-Figure 4As shown, a cylinder 14 is symmetrically fixed on the top inner wall of the cavity 3 4, and the output end of the cylinder 14 is fixedly connected to the top of the support plate 7. A plurality of fixing blocks 15 are fixedly arranged in an annular array on the lower outer wall of the bottom plate 10, and a plug rod 16 is fixedly arranged on the top of each fixing block 15. A plurality of grooves matching the fixing blocks 15 are provided in an annular array on the top inner wall of the cavity 2 3, and a slot 17 matching the plug rod 16 is provided on the top inner wall of the groove. The support plate 7 can be pushed downward by the cylinder 14, so that the support plate 7 passes through The double-headed motor 8 drives the rotating rod 19 to move downward, and the rotating rod 19 will drive the bottom plate 10 to move downward through the scraper rod 13. At this time, the bottom plate 10 will drive the fixed block 15 and the insertion rod 16 to move downward. The insertion rod 16 and the fixed block 15 can play a role of limiting support for the bottom plate 10. The double-headed motor 8 drives the rotating rod 19 to rotate, so that the rotating rod 19 drives the stirring rod 11, the scraper rod 12 and the scraper rod 2 13 to rotate. The scraper rod 12 can clean the inner wall of the cavity 2, and the scraper rod 2 13 can scrape the sludge on the bottom plate 10 into the cavity 2 3.

[0025] Specifically, Figure 1-Figure 4 As shown, a rotating rod 2 18 is rotatably provided on the inner wall of the top end of the sewage discharge rod 6, and a plurality of spiral blades 19 are fixedly sleeved in an array on the rotating rod 2 18. A accommodating groove is opened in the lower part of the sewage discharge rod 6 and the bottom end of the rotating rod 2 18 extends into the accommodating groove. A sleeve 20 is rotatably provided on the inner wall of the bottom end of the cavity 3 4, and a rotating rod 3 21 is slidably inserted at the top end of the sleeve 20. The top end of the rotating rod 3 21 is fixedly connected to the lower output end of the double-headed motor 8, and a pulley 22 is fixedly sleeved on the rotating rod 3 21 and the rotating rod 2 18. The two pulleys 22 are connected by a belt 23 for transmission. The cross-section of the rotating rod 3 21 is a polygonal structure. The rotating rod 3 21 can be driven to rotate by the double-headed motor 8. At this time, the rotating rod 3 21 will drive the rotating rod 2 18 to rotate through the belt 23 and the pulley 22, so that the rotating rod 2 18 drives the spiral blades 19 to rotate, thereby discharging the sludge.

[0026] Example 2 Please refer to Figure 1-Figure 4 The difference between this embodiment and embodiment 1 is that a sealing ring matching the rotating rod 9 is fixedly provided on the inner wall of the bottom end of the cavity 3 4, a limiting ring is fixedly provided on the rotating rod 9 and the top end of the limiting ring abuts against the bottom end of the bottom plate 10, and by providing the limiting ring, the bottom plate 10 can be supported.

[0027] The working principle of the utility model is as follows: when in use, after the sewage is precipitated and the water is discharged, the support plate 7 is pushed downward by the cylinder 14, and the rotating rod 19 drives the bottom plate 10 to move downward through the scraper rod 13. At this time, the bottom plate 10 drives the fixed block 15 and the plug rod 16 to move downward. The plug rod 16 and the fixed block 15 can play a role of limiting support for the bottom plate 10. The rotating rod 19 is driven to rotate by the double-headed motor 8, so that the rotating rod 19 drives the stirring rod 11, the scraper rod 12 and the scraper rod 13 to rotate, and the scraper rod 12 can clean the inner wall of the cavity 2. The sludge on the bottom plate 10 can be quickly scraped off into the cavity 2 3 by the scraper rod 2 13, and then the bottom plate 10 is reset, so that sewage and medicine can be continuously added into the cavity 1 2, and the double-headed motor 8 works, so that the sewage and medicine can be mixed by the stirring rod 11, and at the same time, the sludge in the cavity 2 3 slides into the sewage discharge rod 6, and the double-headed motor 8 can drive the rotating rod 3 21 to rotate. At this time, the rotating rod 3 21 will drive the rotating rod 2 18 to rotate through the belt 23 and the pulley 22, so that the rotating rod 2 18 drives the spiral blade 19 to rotate, so that the sludge can be discharged.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sedimentation tank for sewage treatment, comprising a tank body (1), characterized in that: The top of the pool body (1) is provided with a cavity 1 (2), the middle of the pool body (1) is provided with a cavity 2 (3), the lower part of the pool body (1) is provided with a cavity 3 (4), the cavity 1 (2) is communicated with the internal space of the cavity 2 (3), a water outlet (5) is fixedly provided at the upper part of one side of the pool body (1), a sewage discharge rod (6) is fixedly provided at one side of the pool body (1), the cavity 2 (3) is communicated with the internal space of the sewage discharge rod (6), a support plate (7) is slidably provided in the cavity 3 (4), and a double-headed motor (8) is fixedly provided at the top of the support plate (7). The upper output end of the double-headed motor (8) is fixedly connected to a rotating rod (9), the top end of the rotating rod (9) extends into the cavity (2), the lower rotating sleeve of the rotating rod (9) is provided with a bottom plate (10) matching the cavity (2), a plurality of stirring rods (11) are fixedly arranged in a symmetrical array on the upper part of the rotating rod (9), a scraper rod (12) is fixedly arranged on the stirring rod (11) on one side, a scraper rod (13) is fixedly arranged in the middle part of the rotating rod (9), and the bottom end of the scraper rod (13) contacts the top end of the bottom plate (10).

2. A sedimentation tank for sewage treatment according to claim 1, characterized in that: Cylinders (14) are symmetrically fixedly provided on the inner wall at the top end of the cavity three (4), and the output ends of the cylinders (14) are fixedly connected to the top end of the support plate (7).

3. A sedimentation tank for sewage treatment according to claim 1, characterized in that: A plurality of fixing blocks (15) are fixedly provided in an annular array on the lower outer wall of the bottom plate (10), and an insertion rod (16) is fixedly provided at the top end of each of the fixing blocks (15). A plurality of grooves matching the fixing blocks (15) are provided in an annular array on the top inner wall of the cavity 2 (3), and slots (17) matching the insertion rod (16) are provided on the top inner walls of the grooves.

4. A sedimentation tank for sewage treatment according to claim 1, characterized in that: A second rotating rod (18) is rotatably provided on the inner wall of the top end of the sewage discharge rod (6), and a plurality of spiral blades (19) are arranged in an array and fixedly sleeved on the second rotating rod (18).

5. A sedimentation tank for sewage treatment according to claim 4, characterized in that: A receiving groove is provided in the lower part of the sewage discharge rod (6) and the bottom end of the rotating rod 2 (18) extends into the receiving groove. A sleeve (20) is rotatably provided on the inner wall of the bottom end of the cavity 3 (4). A rotating rod 3 (21) is slidably inserted into the top end of the sleeve (20). The top end of the rotating rod 3 (21) is fixedly connected to the lower output end of the double-headed motor (8). A pulley (22) is fixedly sleeved on both the rotating rod 3 (21) and the rotating rod 2 (18), and the two pulleys (22) are connected by a belt (23).

6. A sedimentation tank for sewage treatment according to claim 5, characterized in that: The cross section of the rotating rod three (21) is a polygonal structure.

7. A sedimentation tank for sewage treatment according to claim 1, characterized in that: A sealing ring matching the rotating rod one (9) is fixedly provided on the inner wall of the bottom end of the cavity three (4), and a limiting ring is fixedly sleeved on the rotating rod one (9), and the top end of the limiting ring contacts the bottom end of the bottom plate (10).

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