Sludge reflux tank capable of prolonging sludge precipitation time
By installing adjustable baffles in the sludge return tank, the sludge sedimentation function is realized, which solves the problem of wasted space in the sludge return tank, improves the sludge sedimentation efficiency, and forms a large sedimentation tank.
Patent Information
- Application Number
- CN202423128600.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2034-12-18
AI Technical Summary
The existing sludge return tanks only serve a return function, wasting production space and having low sludge sedimentation efficiency.
A sludge return tank was designed. By setting an adjustable baffle at the return port, with the baffle height being smaller than the return port, the sludge sedimentation function is realized. The sludge settles in the return tank, and the clear water overflows and flows back to the sedimentation tank for further sedimentation, forming a large sedimentation tank and improving sedimentation efficiency.
Through the design of the baffle, the sludge return tank can achieve sludge sedimentation during the return process. Multiple tanks are connected in parallel to form a large sedimentation tank, which greatly improves the sludge sedimentation efficiency and saves production space.
Smart Images
Figure CN223950903U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sewage treatment technical field especially relates to a sludge backflow tank that can increase sludge sedimentation time. BACKGROUND
[0002] A large amount of sludge is produced in domestic sewage treatment, and sludge backflow tanks are arranged beside each sewage treatment tank in the sewage treatment process, so that the sewage with sludge is backflowed to the sedimentation tank for sedimentation, and the sludge after sedimentation is subjected to dewatering and harmless treatment for recycling. However, the existing sludge backflow tank only has a single backflow function, which wastes production space to some extent. UTILITY MODEL CONTENT
[0003] In order to solve the problem that the existing sludge backflow tank only has a single backflow function and wastes production space to some extent, the utility model provides a sludge backflow tank that can increase sludge sedimentation time.
[0004] To achieve the above purpose, the utility model provides the following technical scheme:
[0005] A sludge backflow tank that can increase sludge sedimentation time, comprising a sludge backflow tank, wherein one end of the sludge backflow tank is communicated with a sewage treatment tank, and the other end is communicated with a sludge sedimentation tank through a backflow port; symmetrically arranged guide rails are arranged above both sides of the backflow port, a connecting rod is slidably connected to the guide rails through guide blocks, a baffle is arranged at the bottom of the connecting rod and used for shielding the backflow port, and the height of the baffle is less than the height of the backflow port; an installation plate is arranged between the tops of the two guide rails, a bearing seat is arranged in the middle of the installation plate, a nut is rotatably connected to the bearing seat, a screw rod is screwed on the nut, the screw rod penetrates through the bearing seat and the installation plate, and the screw rod is fixedly connected with a connecting seat arranged on the top of the baffle; a rotating handle is arranged on the outside of the nut, so as to facilitate the rotation of the nut.
[0006] Preferably, two guide sleeves are symmetrically arranged on the back of the baffle, and a U-shaped connecting rod is slidably connected to the two guide sleeves, wherein an extended baffle is connected to the bottom of the U-shaped connecting rod, and the top of the U-shaped connecting rod is fixedly connected with the baffle through a fixed pin.
[0007] Preferably, a cover plate is arranged on the top of the sludge backflow tank to facilitate walking, a residual sludge pump is arranged on the top of the cover plate, a sludge suction pipe is arranged at the inlet end of the residual sludge pump and extends to the bottom of the sludge backflow tank, and a sludge discharge pipe is arranged at the outlet end of the residual sludge pump and extends to a sludge recycling position.
[0008] Compared with the prior art, the beneficial effects of the utility model are that: the backflow port is blocked by the baffle, and the height of the baffle is less than the height of the backflow port, so that the thin sludge in the lower layer is deposited in the sludge backflow tank, and the slightly clean sewage in the top layer overflows at the baffle and backflows to the sludge sedimentation tank for deposition again; compared with the prior art of direct backflow, the sludge backflow tank can play a role in depositing sludge, and multiple sludge backflow tanks are connected in parallel to form a large sludge sedimentation tank, greatly improving the sludge deposition efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0009] Fig. 1 It is a front view structural schematic diagram of the utility model embodiment;
[0010] Fig. 2 It is a top view structural schematic diagram of the backflow port of the utility model embodiment;
[0011] Fig. 3 It is a structural schematic diagram of the back of the baffle of the utility model embodiment.
[0012] In the drawing: 1, sludge backflow tank, 2, backflow port, 3, guide rail, 4, mounting plate, 5, bearing seat, 6, nut, 7, rotating handle, 8, screw rod, 9, connecting seat, 10, baffle, 11, guide block, 12, connecting rod, 13, cover plate, 14, residual sludge pump, 15, mud pumping pipe, 16, mud discharging pipe, 17, guide sleeve, 18, U-shaped guide rod, 19, extension baffle, 20, fixed bolt. DETAILED DESCRIPTION
[0013] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal" and the like indicate the orientation or positional relationship shown in the drawing, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.
[0014] The technical solutions in the utility model embodiments will be clearly and completely described below with reference to the drawings in the utility model embodiments, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0015] As Figs. 1-2As shown, the utility model embodiment includes sludge backflow tank 1, sludge backflow tank 1 one end is communicated with sewage treatment tank, and the other end is communicated with sludge sedimentation tank through backflow port 2, the both sides of backflow port 2 top are provided with the guide rail 3 of symmetry, and the guide rail 3 is slidably connected with connecting rod 12 through guide block 11, and the bottom of connecting rod 12 is provided with baffle 10, is used to shield backflow port 2, and the height of baffle 10 is less than the height of backflow port 2, the top between two guide rails 11 is provided with mounting plate 4, the middle of mounting plate 4 is provided with bearing seat 5, bearing seat 5 is rotatably connected with nut 6, and nut 6 is screwed with lead screw 8, and lead screw 8 penetrates bearing seat 5 and mounting plate 4, and is fixedly connected with the connecting seat 9 installed on the top of baffle 10, the outside of nut 6 is provided with rotating handle 7, and rotating nut 6 is convenient.
[0016] The sewage with sludge flows into sludge backflow tank 1, backflow port 2 is blocked by baffle 10 at this time, and the height of baffle 10 is less than the height of backflow port 2, so the sludge of lower layer is deposited in sludge backflow tank 1, and the sewage of top layer is overflowed at baffle 10 and backflows to sludge sedimentation tank and is deposited again, compared with the prior art direct backflow mode, the sludge backflow tank 1 can play the role of depositing sludge, and multiple sludge backflow tanks 1 are connected in parallel to form a large sludge sedimentation tank, which greatly improves the sludge deposition efficiency. In specific circumstances, for example, when the backflow sewage flow is too large, rotating handle 7 can be rotated to rotate nut 6, so that lead screw 8 moves upwards, thereby driving baffle 10 to move upwards and open backflow port 2, so as to prevent the sewage from overflowing. When the sludge deposited in sludge backflow tank 1 reaches a certain amount, the remaining sludge pump 14 can be opened to pump it out.
[0017] As preferred, two guide sleeves 17 are symmetrically arranged on the back of baffle 10, and a U-shaped connecting rod 18 is slidably connected to the two guide sleeves 17, the bottom of the U-shaped connecting rod 18 is connected to an extension baffle 19, and the top is fixedly connected to the baffle 10 through a fixed pin 20. After the fixed pin 20 is pulled out, the extension baffle 19 can move up and down, and under the action of gravity, the bottom of the extension baffle 19 abuts against the bottom of the sludge backflow tank 1 to form a block, and the height of the baffle 10 can be adjusted by rotating the handle 7, so as to adjust the speed of the sewage flowing out of the sludge backflow tank 1. When it is necessary to completely open the backflow port 2, first manually pull the extension baffle 19 upwards through the U-shaped guide rod 18 to reset, and then fix the fixed pin 20 through the U-shaped guide rod 18 and the baffle 10, and then rotate the handle 7 to raise the baffle 10.
[0018] As preferred, a cover plate 13 is arranged on the top of the sludge backflow tank 1 for convenient walking, a remaining sludge pump 14 is arranged on the top of the cover plate 13, a sludge suction pipe 15 is arranged at the inlet end of the remaining sludge pump 14, and the sludge suction pipe 15 extends to the bottom of the sludge backflow tank 1, a sludge discharge pipe 16 is arranged at the outlet end of the remaining sludge pump 14, and the sludge discharge pipe 16 extends to a sludge recycling position.
[0019] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sludge return tank capable of increasing sludge settling time, comprising a sludge return tank, one end of the sludge return tank being communicated with a sewage treatment tank, the other end being communicated with a sludge settling tank through a return port; symmetrically arranged guide rails are arranged above the return port on both sides, a connecting rod is slidably connected on the guide rails through a guide block, a baffle is arranged at the bottom of the connecting rod for shielding the return port, the height of the baffle is less than the height of the return port; a mounting plate is arranged between the top of the two guide rails, a bearing seat is arranged in the middle of the mounting plate, a nut is rotatably connected on the bearing seat, a screw rod is screwed on the nut, the screw rod penetrates through the bearing seat and the mounting plate, and is fixedly connected with a connecting seat mounted on the top of the baffle; a rotating handle is arranged outside the nut to facilitate rotating the nut.
2. The sludge return tank capable of increasing sludge settling time according to claim 1, characterized in that: Two guide sleeves are symmetrically arranged on the back of the baffle, and a U-shaped connecting rod is slidably connected on the two guide sleeves, an extended baffle is connected at the bottom of the U-shaped connecting rod, and the top of the U-shaped connecting rod is fixedly connected with the baffle through a fixed pin.
3. The sludge return tank capable of increasing sludge settling time according to claim 1, characterized in that: A cover plate is arranged on the top of the sludge return tank to facilitate walking, a residual sludge pump is arranged on the top of the cover plate, a mud suction pipe is arranged at the inlet end of the residual sludge pump, the mud suction pipe extends to the bottom of the sludge return tank, a mud discharge pipe is arranged at the outlet end of the residual sludge pump, and the mud discharge pipe extends to a sludge recycling position.