Efficient sludge discharge device for sedimentation tank
By using a sludge discharge device designed with polypyramids and diversion blocks in the sedimentation tank, the problem of poor sludge discharge is solved, and efficient and low-cost sludge discharge is achieved, avoiding silt and deterioration of water quality.
Patent Information
- Application Number
- CN202510782245.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-12
- Publication Date
- 2025-08-12
AI Technical Summary
There are problems of poor sludge discharge in existing sedimentation tanks, resulting in silt and deterioration of water quality, and the existing solutions increase investment costs.
The sludge discharge device designed with polypyramids and diversion blocks is designed to connect multiple sludge discharge pipes and main pipes to realize sludge discharge, reduce the height and number of sludge buckets, and set up solenoid valves and compressed air pipes to prevent blockage.
It improves the efficiency of sludge discharge, reduces space occupation and investment costs, avoids sludge sludge sludge and deteriorates water quality, and achieves clean and timely sludge discharge.
Smart Images
Figure CN120459676A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of sewage treatment, in particular to a high-efficiency mud discharge device for a sedimentation tank. Background Art
[0002] Sedimentation tanks are important devices in water treatment plants for removing suspended solids and achieving mud-water separation. Clean water flows out from the surface of the sedimentation tank, and the sludge settles into the sludge hopper at the bottom and is discharged regularly through the sludge discharge pipe to achieve the effect of mud-water separation.
[0003] To ensure that the sludge falls smoothly to the bottom of the hopper, the inclination of the hopper wall is no less than 55 degrees. This results in the bottom area of the hopper being larger than the diameter of the sludge discharge pipe, resulting in insufficient sludge suction at the rear end of the sludge discharge pipe and the sides of the hopper. This creates dead corners for sludge discharge and prevents the timely and adequate discharge of sludge from the hopper. The sludge in these dead corners accumulates and undergoes anaerobic fermentation for a long time, causing the water in the sedimentation tank to turn black and mud to turn over, affecting the effluent quality. To ensure smooth sludge discharge from the sedimentation tank, some sedimentation tanks currently increase the height of the sludge hopper or increase the number of sludge hoppers to reduce the bottom area of each hopper to facilitate smooth sludge discharge, which significantly increases investment costs. Summary of the Invention
[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by this patent application is how to provide an efficient mud discharge device for a sedimentation tank that has a simple structure, occupies a small space, and discharges mud cleanly.
[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:
[0006] A high-efficiency mud discharge device for a sedimentation tank comprises a mud discharge bucket assembly and a mud discharge pipe assembly; the mud discharge bucket assembly comprises a mud discharge bucket with inclined side walls, the bottom of the mud discharge bucket is closed, a polygonal cone is fixedly mounted on the bottom wall of the mud discharge bucket upwards, the side walls of the polygonal cone are arranged opposite to the side walls of the mud discharge bucket, and the bottom edges of the polygonal cone and the bottom edges of the mud discharge bucket form equally spaced mud discharge channels; a guide block is fixed between the polygonal cone and each corresponding side wall of the mud discharge bucket, the bottom edges of the guide blocks are consistent in length with the bottom edges of the polygonal cone, and two adjacent guide blocks separate the mud discharge channel into mud discharge areas; the mud discharge pipe assembly comprises a mud discharge pipe extending from the side walls of the mud discharge bucket opposite to the mud discharge area, and each of the mud discharge pipes is connected to a mud discharge main pipe via a connecting pipe.
[0007] When in use, the sludge discharge hopper receives the sludge deposited in the sedimentation tank. Under the action of the polygonal cone and the guide block, the sludge is automatically diverted to the sludge discharge area. Each sludge discharge area is provided with a corresponding sludge discharge pipe, which extracts the sludge in the area respectively and collects it into the sludge discharge main pipe and discharges it into the sludge concentration tank. In this solution, the sludge hopper is divided into multiple sludge discharge areas. Without considering the restriction of matching the caliber of the sludge pipe, the area of the bottom of the sludge hopper can be expanded and the height of the sludge hopper itself can be reduced, thereby reducing space occupation and investment costs. Multiple sludge discharge pipes are provided, and each sludge discharge pipe corresponds to a sludge discharge area. Compared with the existing structure, the outlet for synchronous sludge discharge is increased, the efficiency of sludge discharge is improved, and it is convenient for timely discharge and cleaning, avoiding sludge accumulation and fermentation, affecting water quality, and indirectly reducing the number of sludge hoppers.
[0008] Preferably, the guide block is a pentahedral structure, the bottom wall of the guide block is fixedly connected to the mud discharge channel, the two side walls of the guide block are respectively fixedly connected to the side walls of the polygonal pyramid and the mud discharge bucket, the front wall and the rear wall of the guide block are collinearly connected at the top, and the bottom is respectively connected to the bottom wall.
[0009] In this way, the sharp edges formed at the top by the front wall and the rear wall can divide the sludge, making it easier for it to enter different sludge discharge areas, while no attachment residue will be produced on the top, making it easier to discharge.
[0010] Preferably, the front wall of the guide block is arranged opposite to the mud discharge pipe, and the angle between the front wall and the bottom wall of the guide block is smaller than the angle between the rear wall and the bottom wall, and both are greater than 60°.
[0011] In this way, the front wall is arranged opposite to the mud discharge pipe, and can enter the mud discharge port more quickly. The slope of the rear wall is greater than that of the front wall, ensuring that the sludge on the rear wall that is not arranged opposite to the mud discharge pipe can get falling space, avoiding the formation of mud discharge dead corners.
[0012] Preferably, the width of the bottom of the mud discharge area is consistent with the inner diameter of the mud discharge pipe, and the opening of the mud discharge pipe is flush with the inner side wall of the mud discharge bucket.
[0013] In this way, the maximum suction quality can be provided, avoiding the formation of a mud discharge dead angle between the outer wall of the mud discharge pipe and the mud discharge bucket due to the mud discharge pipe extending too long into the mud discharge bucket, thereby ensuring clean mud discharge.
[0014] Preferably, the mud discharge main pipe and each mud discharge pipe are provided with a solenoid valve.
[0015] In this way, the switching between synchronous mud discharge and separate mud discharge can be achieved to meet different working conditions.
[0016] Preferably, the angle between each side wall and the bottom wall of the polygonal pyramid is greater than 60°.
[0017] In this way, the sludge can be ensured to fall quickly and reach the bottom, avoiding residues adhering to the side walls and causing sludge fermentation.
[0018] Preferably, each ridge and connected edges of the polygonal pyramid, guide block and mud discharge bucket are chamfered.
[0019] This allows the sludge to slide to the bottom more easily and be discharged.
[0020] Preferably, a compressed air pipe is provided on the mud discharge main pipe, and the inlet of the compressed air pipe is provided at the front end of the solenoid valve.
[0021] In this way, backflushing can be performed regularly to prevent sludge adhesion in the sludge hopper and clogging of the sludge pipe.
[0022] In summary, the high-efficiency mud discharge device for the sedimentation tank has the following advantages:
[0023] (1) For sedimentation tanks with large sludge hoppers, the sludge can be discharged more easily by dividing the sludge hopper into multiple areas, which can indirectly reduce the number of sludge hoppers.
[0024] (2) All inclined surfaces are greater than 60 degrees, and the inner corners and edges of the sludge hopper are chamfered to reduce sludge adhesion and facilitate sludge falling to the bottom.
[0025] (3) Dividing the sludge hopper area can concentrate the sludge in the larger sludge hopper into smaller corners, making it easier to discharge the sludge in a timely manner and avoid sludge fermentation that affects water quality.
[0026] (4) Connect the compressed air pipe to the sludge main pipe to regularly backflush the sludge discharge system to prevent sludge from adhering to the sludge hopper and clogging the sludge pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 The present invention is a schematic structural diagram of a high-efficiency mud discharge device for a sedimentation tank.
[0028] Figure 2 for Figure 1 Top view of .
[0029] Figure 3 for Figure 1 Schematic diagram of the structure with one side wall of the mud hopper removed.
[0030] Figure 4 Schematic diagram of the structure of the guide block. DETAILED DESCRIPTION
[0031] The present invention will be described in further detail below with reference to the accompanying drawings. It should be understood that in the description of the present invention, the directions or positional relationships indicated by directional terms such as "upper" and "lower" and "top" and "bottom" are generally based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. Unless otherwise indicated, these directional terms do not indicate or imply that the devices or components referred to must have a specific direction or be constructed and operated in a specific direction, and therefore should not be construed as limiting the scope of protection of the present invention. The directional terms "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.
[0032] like Figure 1-4 As shown, a high-efficiency mud discharge device for a sedimentation tank, the mud discharge bucket assembly includes a mud discharge bucket 1 with an inclined side wall, the bottom of the mud discharge bucket is closed, and a polygonal cone 2 is fixedly installed on the bottom wall of the mud discharge bucket upward, and the side wall of the polygonal cone is arranged opposite to the side wall of the mud discharge bucket, and the bottom edge of the polygonal cone and the bottom edge of the mud discharge bucket form equally spaced mud discharge channels; a guide block 3 is fixed between each corresponding side wall of the polygonal cone and the mud discharge bucket, and the bottom edge of the guide block is consistent with the bottom edge of the polygonal cone in length, and two adjacent guide blocks separate the mud discharge channel into a mud discharge area 4; the mud discharge pipe assembly includes a mud discharge pipe 5 extending from the side wall of the mud discharge bucket opposite to the mud discharge area, and each of the mud discharge pipes is connected to the mud discharge main pipe 7 through a connecting pipe 6.
[0033] When in use, the sludge discharge hopper receives the sludge deposited in the sedimentation tank. Under the action of the polygonal cone and the guide block, the sludge is automatically diverted to the sludge discharge area. Each sludge discharge area is provided with a corresponding sludge discharge pipe, which extracts the sludge in the area and collects it into the sludge discharge main pipe and discharges it into the sludge thickening tank. In this solution, the sludge hopper is divided into multiple sludge discharge areas, which can reduce the height of the sludge hopper itself and reduce the space occupied. Multiple sludge discharge pipes are set, and each sludge discharge pipe corresponds to a sludge discharge area. Compared with the existing structure, the synchronous sludge discharge outlet is increased, the sludge discharge efficiency is improved, and it is convenient for timely discharge and clean discharge, while indirectly reducing the number of sludge hoppers set.
[0034] During implementation, the guide block has a pentahedral structure. The bottom wall 31 of the guide block is fixedly connected to the mud discharge channel. The two side walls 32 of the guide block are respectively fixedly connected to the side walls of the polygonal pyramid and the mud discharge bucket. The front wall 33 and rear wall 34 of the guide block are collinearly connected at the top and connected to the bottom wall at the bottom. In this way, the sharp edges formed at the top of the front and rear walls can divide the sludge, facilitating its entry into different mud discharge areas, while preventing any residue from sticking to the top, facilitating clean discharge.
[0035] During implementation, the front wall of the guide block is positioned directly opposite the mud discharge pipe. The angle between the front wall and the bottom wall of the guide block is smaller than the angle between the rear wall and the bottom wall, and both angles are greater than 60°. This allows the front wall to face the mud discharge pipe more quickly, while the rear wall's slope is greater than the front wall's, ensuring that sludge on the rear wall, which is not directly facing the mud discharge pipe, has space to fall, avoiding dead corners in mud discharge.
[0036] Specifically, the angles between the front wall and the rear wall and the inner wall of the polygonal pyramid and the sludge hopper are greater than 60 degrees, so as to provide a sufficient sliding slope to avoid sludge retention.
[0037] During implementation, the width of the bottom of the mud discharge area is consistent with the inner diameter of the mud discharge pipe, and the opening of the mud discharge pipe is flush with the inner wall of the mud discharge bucket. This can provide maximum suction quality and avoid the mud discharge dead angle between the outer wall of the mud discharge pipe and the mud discharge bucket caused by the mud discharge pipe extending too far into the mud discharge bucket, thereby ensuring clean mud discharge.
[0038] Specifically, the pipe opening of the sludge discharge pipe is arranged as an inclined surface with the inclined surface facing upwards, so that the maximum suction volume can be guaranteed and there is no dead corner for sludge adsorption.
[0039] During implementation, the mud discharge main pipe and each of the mud discharge pipes are provided with a solenoid valve 8. In this way, the switching between synchronous mud discharge and separate mud discharge can be achieved to meet different operating conditions.
[0040] During implementation, the angle between each side wall and the bottom wall of the polygonal pyramid is greater than 60 degrees. This ensures that the sludge falls quickly and reaches the bottom, avoiding residues adhering to the side walls and causing sludge fermentation.
[0041] During implementation, each ridge and connected edges of the polygonal pyramid, guide block and mud discharge bucket are chamfered, so that the mud can slide into the bottom more easily for discharge.
[0042] Specifically, the convex edges of the polygonal pyramid and the guide block are external corners, and the edges connecting any two of the polygonal pyramid, the guide block and the mud bucket are internal corners. The chamfering of the external corners and the internal corners adopts existing processing methods, which will not be described in detail here.
[0043] During implementation, a compressed air pipe 9 is provided on the mud discharge main pipe, and the inlet of the compressed air pipe is provided at the front end of the electromagnetic valve. In this way, back-blowing can be performed regularly to prevent the mud from adhering to the mud hopper and clogging the mud pipe.
[0044] Specifically, a mud discharge pump 10 is provided on the mud discharge main pipe, which can provide stable and efficient power for the machine.
[0045] Specifically, the materials of the polygonal pyramid and the guide block include but are not limited to stainless steel and concrete.
[0046] Finally, it should be noted that various modifications and variations of the present invention may be made by those skilled in the art without departing from the spirit and scope of the present invention. Thus, the present invention is intended to include such modifications and variations as fall within the scope of the claims and their equivalents.
Claims
1. A high-efficiency mud discharge device for a sedimentation tank, characterized in that: It includes a mud bucket assembly and a mud pipe assembly; The mud discharge bucket assembly includes a mud discharge bucket with inclined side walls, the bottom of the mud discharge bucket is closed, a polygonal pyramid is fixedly installed on the bottom wall of the mud discharge bucket upward, the side walls of the polygonal pyramid are arranged opposite to the side walls of the mud discharge bucket, and the bottom edges of the polygonal pyramid and the bottom edges of the mud discharge bucket form equally spaced mud discharge channels; a guide block is fixed between the polygonal pyramid and each corresponding side wall of the mud discharge bucket, the bottom edges of the guide blocks are consistent in length with the bottom edges of the polygonal pyramid, and two adjacent guide blocks separate the mud discharge channel into mud discharge areas; The mud discharge pipe assembly includes mud discharge pipes extending from the side wall of the mud discharge bucket directly into the mud discharge area, and each mud discharge pipe is connected to the mud discharge main pipe through a connecting pipe.
2. A high-efficiency mud discharge device for a sedimentation tank according to claim 1, characterized in that: The guide block is a pentahedral structure, the bottom wall of the guide block is fixedly connected to the mud discharge channel, the two side walls of the guide block are respectively fixedly connected to the side walls of the polygonal pyramid and the mud discharge bucket, the front wall and the rear wall of the guide block are collinearly connected at the top, and the bottom is respectively connected to the bottom wall.
3. A high-efficiency mud discharge device for a sedimentation tank according to claim 2, characterized in that: The front wall of the guide block is arranged opposite to the mud discharge pipe, and the angle between the front wall and the bottom wall of the guide block is smaller than the angle between the rear wall and the bottom wall, and both are greater than 60°.
4. A high-efficiency mud discharge device for a sedimentation tank according to claim 3, characterized in that: The width of the bottom of the mud discharge area is consistent with the inner diameter of the mud discharge pipe, and the opening of the mud discharge pipe is flush with the inner side wall of the mud discharge bucket.
5. A high-efficiency mud discharge device for a sedimentation tank according to claim 4, characterized in that: The mud discharge main pipe and each mud discharge pipe are provided with a solenoid valve.
6. A high-efficiency mud discharge device for a sedimentation tank according to claim 5, characterized in that: The included angle between each side wall and the bottom wall of the polygonal pyramid is greater than 60°.
7. A high-efficiency mud discharge device for a sedimentation tank according to claim 6, characterized in that: Each ridge and connected edges of the polygonal pyramid, guide block and mud discharge bucket are chamfered.
8. The high-efficiency mud discharge device for a sedimentation tank according to claim 7, characterized in that: The mud discharge main pipe is provided with a compressed air pipe, and the inlet of the compressed air pipe is provided at the front end of the solenoid valve.