A secondary sedimentation tank central tube base structure
By designing a reinforced central cylinder base structure including upper flange, steel ring and lower flange, the problems of insufficient load-bearing strength and return sludge leakage of the existing second sedimentation tank central cylinder base are solved, and higher load-bearing strength and better anti-leakage effect are achieved.
Patent Information
- Application Number
- CN202421248851.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-03
AI Technical Summary
The load-bearing strength of the central cylinder base of the existing second sedimentation tank is insufficient, and the loose waterproof cement causes the leakage of return sludge, affecting the process flow.
A central cylinder base structure including an upper flange, a steel ring and a lower flange is designed. The reinforcement structure is formed by the overall formation of the upper flange, a steel ring and a lower flange, which increases the load-bearing strength, and a rubber pad and a spring structure are provided at the bottom to improve the leakage prevention effect.
It effectively improves the strength of the central cylinder base, reduces the leakage of reflux sludge, enhances the anti-seepage effect of sludge, and stabilizes the process flow.
Smart Images
Figure CN222738551U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sewage treatment, and more specifically to a central tube base structure of a secondary sedimentation tank. Background Art
[0002] The secondary sedimentation tank is a sewage treatment equipment used to treat suspended matter and solid particles in sewage. In the secondary sedimentation tank, by setting the sedimentation plate and the bottom pad, the suspended matter and solid particles can be effectively settled to the bottom of the tank, thereby purifying the sewage.
[0003] The base of the central cylinder of the secondary sedimentation tank was originally fixed by a 3mm stainless steel enclosure and waterproof cement sealing. This not only had low load-bearing strength, but over time, the waterproof cement loosened and the return sludge leaked, seriously affecting the process flow. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a central tube base structure of a secondary sedimentation tank to solve the problems existing in the above-mentioned background technology.
[0005] The utility model provides the following technical solutions: a secondary sedimentation tank central tube base structure, comprising an upper flange and a lower flange, the top of the lower flange is provided with an embedding groove, a steel ring is welded in the embedding groove, and the top of the steel ring is fixed to the upper flange, the upper flange, the steel ring and the lower flange form a central tube base, the upper flange and the lower flange are respectively provided with upper mounting holes and lower mounting holes equidistantly distributed inside, a reinforcement structure is provided between the upper flange and the lower flange, and an anti-leakage structure is provided at the bottom of the lower flange.
[0006] Furthermore, the anti-leakage structure is a rubber pad, which is bonded to the bottom of the lower flange. A ring groove is provided at the bottom of the lower flange, and a retaining ring is slidably connected inside the ring groove. A plurality of springs distributed at equal distances are provided between the top of the retaining ring and the top inner wall of the ring groove.
[0007] Furthermore, the bottom of the retaining ring passes through the rubber pad, and the spring is in a compressed state when the bottom surface of the retaining ring is flush with the bottom surface of the rubber pad.
[0008] Furthermore, the reinforcement mechanism includes a plurality of embedded grooves 2 and embedded grooves 3, and the plurality of embedded grooves 2 and embedded grooves 3 are respectively opened on the top of the lower flange and the circumferential outer wall of the steel ring, and a rib plate is welded between two adjacent embedded grooves 2 and embedded grooves 3.
[0009] Furthermore, an upper ring weld is provided at the inner angle between the upper flange and the steel ring.
[0010] Furthermore, a lower ring weld is provided at the angle between the steel ring and the inner ring of the lower flange.
[0011] Furthermore, weld bead 1, longitudinal weld bead and weld bead 2 are respectively provided at the angles on both sides of the plurality of rib plates and the upper flange, the steel ring and the lower flange.
[0012] Technical effects and advantages of the utility model:
[0013] 1. The utility model effectively improves the strength of the center tube base as a whole formed by the upper flange, the steel ring and the lower flange, and fixes the center tube base with the two sedimentation tanks by chemical bolts in the upper mounting holes and the lower mounting holes, which not only greatly enhances the load-bearing strength, but also reduces the leakage of return sludge.
[0014] 2. The utility model improves the fit between the lower flange and the sedimentation tank after installation by means of a rubber pad, and the elastic force exerted on the retaining ring by the spring makes the retaining ring contact with the sedimentation tank, thereby effectively improving the anti-penetration effect of the base on silt.
[0015] 3. The utility model provides auxiliary support to the upper flange and the lower flange through the rib plate, thereby effectively improving the strength of the upper flange, the lower flange and the steel ring. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the front three-dimensional structure of the utility model.
[0017] Figure 2 It is a schematic diagram of the bottom three-dimensional structure of the utility model.
[0018] Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model.
[0019] Figure 4 It is a schematic diagram of the enlarged structure of part A of the utility model.
[0020] Figure 5 It is a schematic diagram of the three-dimensional exploded structure of the utility model.
[0021] The accompanying drawings are marked as follows: 1. upper mounting hole; 2. upper flange; 3. lower mounting hole; 4. steel ring; 5. lower flange; 6. rib plate; 7. rubber pad; 8. retaining ring; 9. spring; 10. ring groove; 11. weld bead 1; 12. longitudinal weld bead; 13. upper ring weld bead; 14. lower ring weld bead; 15. embedded groove 1; 16. weld bead 2; 17. embedded groove 2; 18. embedded groove 3. DETAILED DESCRIPTION
[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.
[0023] Reference Figure 1-Figure 5 The utility model provides a central tube base structure of a secondary sedimentation tank, including an upper flange 2 and a lower flange 5. An embedding groove 15 is provided on the top of the lower flange 5. A steel ring 4 is welded in the embedding groove 15, and the top of the steel ring 4 is fixed to the upper flange 2. The upper flange 2, the steel ring 4 and the lower flange 5 form a central tube base. The upper flange 2 and the lower flange 5 are respectively provided with upper mounting holes 1 and lower mounting holes 3 that are equidistantly distributed. A reinforcement structure is provided between the upper flange 2 and the lower flange 5. An anti-leakage structure is provided at the bottom of the lower flange 5. When in use, the central tube base as a whole formed by the upper flange 2, the steel ring 4 and the lower flange 5 effectively improves its strength. Chemical bolts are respectively provided on the upper mounting hole 1 and the lower mounting hole 3 to fix them to the two sedimentation tanks, which not only greatly enhances the load-bearing strength but also reduces the leakage of return sludge. An upper ring weld 13 is provided at the inner angle between the upper flange 2 and the steel ring 4, which effectively improves the strength between the upper flange 2 and the steel ring 4. A lower ring weld 14 is provided at the inner angle between the steel ring 4 and the lower flange 5, which effectively improves the strength between the steel ring 4 and the lower flange 5. A plurality of rib plates 6 are respectively provided at the angles on both sides of the upper flange 2, the steel ring 4 and the lower flange 5 with weld bead 11, longitudinal weld bead 12 and weld bead 2 16, which effectively improves the strength between the rib plate 6 and the upper flange 2, the steel ring 4 and the lower flange 5.
[0024] In order to improve the base's ability to prevent silt from infiltrating, the anti-leakage structure in the utility model is a rubber pad 7, which is bonded to the bottom of the lower flange 5. An annular groove 10 is provided at the bottom of the lower flange 5, and a retaining ring 8 is slidably connected inside the annular groove 10. A plurality of springs 9 distributed at equal distances are provided between the top of the retaining ring 8 and the top inner wall of the annular groove 10. The rubber pad 7 is used to improve the fit between the lower flange 5 and the sedimentation tank after installation, and the elastic force applied to the retaining ring 8 by the spring 9 makes the retaining ring 8 contact with the sedimentation tank, thereby effectively improving the base's anti-silt infiltration effect. The bottom of the retaining ring 8 passes through the rubber pad 7, and when the bottom surface of the retaining ring 8 is flush with the bottom surface of the rubber pad 7, the spring 9 is in a compressed state.
[0025] In order to improve the strength of the base, the reinforcement mechanism in the utility model includes a plurality of embedded grooves 17 and embedded grooves 18, and the plurality of embedded grooves 17 and embedded grooves 18 are respectively opened on the top of the lower flange 5 and the circumferential outer wall of the steel ring 4, and a rib plate 6 is welded between two adjacent embedded grooves 17 and embedded grooves 18, so that the upper flange 2 and the lower flange 5 are auxiliary supported by the rib plate 6, thereby effectively improving the strength of the upper flange 2, the lower flange 5 and the steel ring 4.
[0026] The working principle of the utility model: when in use, the center tube base as a whole is formed by the upper flange 2, the steel ring 4 and the lower flange 5, and its strength is effectively improved. The upper flange 2 and the lower flange 5 are auxiliary supported by the rib plate 6, which effectively improves the strength of the upper flange 2, the lower flange 5 and the steel ring 4, and chemical bolts are respectively installed in the upper mounting hole 1 and the lower mounting hole 3 to fix them to the two sedimentation tanks, which not only greatly enhances the load-bearing strength, but also reduces the leakage of return sludge. The rubber pad 7 is used to improve the fit between the lower flange 5 and the sedimentation tank after installation, and the elastic force applied to the retaining ring 8 by the spring 9 makes the retaining ring 8 contact with the sedimentation tank, which effectively improves the anti-penetration effect of the base on sludge.
[0027] Finally, a few points should be explained: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;
[0028] In the drawings of the embodiments disclosed by the present invention, only the structures related to the embodiments disclosed by the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.
Claims
1. A secondary sedimentation tank central tube base structure, comprising an upper flange (2) and a lower flange (5), characterized in that: The top of the lower flange (5) is provided with an embedding groove (15), a steel ring (4) is welded in the embedding groove (15), and the top of the steel ring (4) is fixed to the upper flange (2). The upper flange (2), the steel ring (4) and the lower flange (5) form a central tube base. The upper flange (2) and the lower flange (5) are respectively provided with upper mounting holes (1) and lower mounting holes (3) distributed at equal distances. A reinforcement structure is provided between the upper flange (2) and the lower flange (5), and an anti-leakage structure is provided at the bottom of the lower flange (5).
2. The central tube base structure of the secondary sedimentation tank according to claim 1 is characterized in that: The anti-leakage structure is a rubber pad (7), and the rubber pad (7) is bonded to the bottom of the lower flange (5). The bottom of the lower flange (5) is provided with an annular groove (10), and a retaining ring (8) is slidably connected inside the annular groove (10). A plurality of springs (9) distributed at equal distances are provided between the top of the retaining ring (8) and the top inner wall of the annular groove (10).
3. The central tube base structure of the secondary sedimentation tank according to claim 2 is characterized in that: The bottom of the retaining ring (8) passes through the rubber pad (7), and when the bottom surface of the retaining ring (8) is flush with the bottom surface of the rubber pad (7), the spring (9) is in a compressed state.
4. The central tube base structure of the secondary sedimentation tank according to claim 1 is characterized in that: The reinforcement structure comprises a plurality of embedded grooves (17) and embedded grooves (18), wherein the plurality of embedded grooves (17) and embedded grooves (18) are respectively arranged on the top of the lower flange (5) and the circumferential outer wall of the steel ring (4), and a rib plate (6) is welded between two adjacent embedded grooves (17) and embedded grooves (18).
5. The central tube base structure of the secondary sedimentation tank according to claim 4 is characterized in that: An upper ring weld (13) is provided at the inner angle between the upper flange (2) and the steel ring (4).
6. A secondary sedimentation tank central tube base structure according to claim 5, characterized in that: A lower ring weld (14) is provided at an included angle between the steel ring (4) and the inner ring of the lower flange (5).
7. The central tube base structure of the secondary sedimentation tank according to claim 4 is characterized in that: A weld bead 1 (11), a longitudinal weld bead (12) and a weld bead 2 (16) are respectively provided at the angles on both sides of the plurality of rib plates (6) and the upper flange (2), the steel ring (4) and the lower flange (5).