Sludge cleaning structure for recycling water tank
By adopting the U-shaped pre-sealing tank design in the recycling pool, the depth difference between the arc-shaped sides and the flat sides is used to make the water flow slow and the silt naturally settle, solving the problem of silt blockage and poor sedimentation effect, and achieving effective filtration and efficient recycling of clean water.
Patent Information
- Application Number
- CN202421037358.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-05-11
AI Technical Summary
Silt deposition in existing recycling pools leads to clogging of filtration equipment and requires frequent cleaning. The design of the pre-sealing tank has the problem of silt remix, resulting in poor sedimentation effect.
U-shaped pre-saltitude tank is used to make the water flow slow and the silt naturally settle, and clean water is introduced into the runner through the overflow port to avoid remixing of the silt.
It effectively avoids the problem of sludge blockage, keeps the clean water clean, simplifies the layout, reduces operation and maintenance costs, and improves water resource utilization efficiency.
Smart Images
Figure CN222550400U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of sewage treatment and recycling, in particular to a recycling pool sludge cleaning structure. Background Art
[0002] Today's factories emphasize "zero emissions". Due to old equipment, rainwater and sewage inside the factory may be mixed with rainwater and sewage. If the sludge water is directly discharged, it may pollute the environment and waste water resources. Therefore, factories usually recycle and reuse it. In the prior art, such sludge water is mainly recycled through a recycling pool. However, due to the large amount of silt deposited in the sludge water, direct filtration of the sludge water often causes blockage of the mechanical grille of the recycling water system. The equipment needs to be cleaned from time to time to ensure the normal operation of the recycling pool.
[0003] To solve the above problems, the existing technology has proposed a method of pre-treating sludge in the water. However, large-scale equipment transformation in the factory area requires a large amount of capital investment. Therefore, relying on the existing recycling pool in the factory area to set up a pre-sedimentation tank, a part of the sludge is cleaned in advance, and the water after sedimentation is passed through the treatment equipment, which can greatly improve the efficiency of water resource utilization and reduce the waste of water resources.
[0004] However, the pre-sedimentation tanks used in the prior art are mostly square tanks with the same depth. When new sludge water continuously enters the tank, it will impact the sludge that has already settled in the tank, causing the silt to return to the water, resulting in poor pre-sedimentation effect. In addition, the prior art has methods such as desludging machines and aeration for sludge treatment in pre-sedimentation tanks, but the former has a more complicated process and the latter requires more maintenance. Both require a lot of money and manpower for operation and maintenance. Utility Model Content
[0005] The utility model aims to provide a recycling pool sludge cleaning structure to solve the problem that sludge in the water blocks the recycling pool filtering equipment.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A recycling pool sludge cleaning structure includes a pre-sedimentation pool, a flow channel and a recycling pool arranged in sequence. The pre-sedimentation pool is a U-shaped pre-sedimentation pool, which includes an arc-shaped edge and flat edges on both sides. The depth of the U-shaped pre-sedimentation pool gradually increases from the flat edges on both sides to the arc-shaped edges. One side of the U-shaped pre-sedimentation pool includes an overflow port, which is connected to one end of the flow channel. A mechanical grille of a recycling water system is provided on the flow channel, and the other end of the flow channel is connected to the recycling pool. The principle of this scheme is:
[0008] In actual application, sludge water enters the U-shaped pre-sedimentation tank from the water inlet pipe. Due to the depth difference of the U-shaped pre-sedimentation tank, the sludge water gradually flows from the flat side of the U-shaped pre-sedimentation tank connecting the water inlet pipe to the curved side. After the deeper area on the curved side is filled, the water surface gradually spreads to the flat sides on both sides of the U-shaped pre-sedimentation tank until the water surface reaches the overflow port. The clean water after precipitation will enter the flow channel from the overflow port, and enter the recovery water tank after filtration through the mechanical screen of the recovery water system, waiting for subsequent recycling.
[0009] advantage:
[0010] 1. Since there is a gradually increasing depth difference from the flat sides to the curved sides of the U-shaped pre-sedimentation tank, the water flow rate is relatively slow, which is conducive to the natural sedimentation of sludge, and the sludge sedimentation position gradually spreads from the curved sides to the flat sides. The water flow in the water inlet pipe will not impact the already settled sludge, which is conducive to keeping the clean water after sedimentation.
[0011] 2. The U-shaped pre-sedimentation tank can simplify the layout and avoid the sedimentation tank being too long. At the same time, the existence of the curved edge makes the sludge sedimentation space more sufficient.
[0012] 3. A pre-sedimentation tank is dug on the basis of the existing recycling pool. After the silt is settled, the silt is cleaned by excavation by an excavator. Since the pre-sedimentation tank has a depth difference, when the depth difference is manifested as a slope structure, the excavator can directly clean the silt along the U-shaped pre-sedimentation tank body, or it can be excavated and cleaned on the periphery of the U-shaped tank. The process is simpler than that of the desludging machine, and does not require frequent maintenance, which can effectively save money and labor costs.
[0013] Preferably, as an improvement, the U-shaped pre-sedimentation tank has a slope structure from the flat sides to the curved sides. The slope structure is conducive to the excavator entering the pre-sedimentation tank to clean the sludge at the bottom of the tank. At the same time, due to the smooth transition of the slope structure, the water flow speed of the sludge water entering the U-shaped pre-sedimentation tank will also slow down at the same time, and the sludge that has been settled will not be washed and mixed again, which is conducive to the sedimentation of sludge in the water.
[0014] Preferably, as an improvement, the U-shaped pre-sedimentation tank has a stepped structure from the flat sides to the curved sides. Compared with the slope structure, the stepped structure can further reduce the water flow velocity, so that the impact of the water flow on the settled sludge is lower, and at the same time, the longitudinal length of the U-shaped pre-sedimentation tank can be shortened, saving space, and also reducing the difficulty of digging the U-shaped tank and reducing the construction cost.
[0015] Preferably, as an improvement, a water inlet pipe is connected to the U-shaped pre-sedimentation tank at a side close to the flat edge away from the overflow port. External sludge water enters the U-shaped pre-sedimentation tank through the water inlet pipe.
[0016] Preferably, as an improvement, the flat side depth of the U-shaped pre-sedimentation tank connected to the water inlet pipe is 0.1m, the flat side depth of the overflow port side is 0.2m, and the depth of the arc side is 1.2m. The flat side depth of the overflow port side of the U-shaped pre-sedimentation tank is deeper than the other side, which is conducive to the overflow of the precipitated clean water from the overflow port. At the same time, the maximum working slope of the excavator cannot exceed 35 degrees. This depth range can ensure that the maximum working slope of the excavator is not exceeded while providing the largest possible pre-sedimentation tank bottom area.
[0017] Preferably, as an improvement, the depth of the recovery pool and the flow channel is 7m, which is conducive to diverting and storing a large amount of clear water after sedimentation.
[0018] Preferably, as an improvement, the wall of the recycling pool is provided with a plurality of lifting pumps for pumping out the treated recycled clean water for secondary use.
[0019] Preferably, as an improvement, the hidden beam is located at the rear side of the mechanical grille of the recovery pool. The setting of the hidden beam helps to maintain the strength of the wall of the recovery pool and the flow channel, and reduces the probability of cracking of the pool and the flow channel under long-term use. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the structure of Example 1 of the utility model. DETAILED DESCRIPTION
[0021] The following is further described in detail through specific implementation methods:
[0022] The reference numerals in the drawings of the specification include: water inlet pipe 1, U-shaped pre-sedimentation tank 2, overflow port 3, flow channel 4, lifting pump 5, recovery pool wall 6, recovery pool body 7, recovery water system mechanical grille 8, water outlet 9, hidden beam 10.
[0023] Example 1
[0024] Basically as attached Figure 1 Shown is a recycling pool sludge cleaning structure, comprising a pre-sedimentation pool, a flow channel and a recycling pool arranged in sequence, wherein the pre-sedimentation pool is a U-shaped pre-sedimentation pool, the depth of which gradually increases from the flat sides to the arc-shaped sides, one side of the U-shaped pre-sedimentation pool comprises an overflow port, the overflow port is connected to one end of the flow channel; a recycling water system mechanical grille is provided on the flow channel, and the other end of the flow channel is connected to the recycling pool.
[0025] The U-shaped pre-sedimentation tank 2 is a sloped structure from the flat side connected to the water inlet pipe 1 to the curved side, and its depth gradually deepens. From the curved side to the other side, it is a sloped structure, and its depth gradually becomes shallower. The flat side depth on the side where the overflow port 3 is located is 0.2m, the flat side depth on the side connected to the water inlet pipe 1 is 0.1m, and the depth at the curved side is 1.2m. The flow channel 4 is 7m deep, one end of the flow channel 4 is connected to the overflow port 3, and the other end is connected to the outlet 9, which is located on the left side of the recycling pool. A recycling pool mechanical grille 8 is also provided on the flow channel 4, which is used to filter and process the residual mud and sand impurities in the clear water after pre-sedimentation. Since the recycling pool and the flow channel are usually built with materials such as concrete, in order to prevent the pool wall and the flow channel wall from cracking under long-term use, a hidden beam 10 is set behind the mechanical grille of the recycling water system to enhance the strength of the recycling pool wall and the flow channel wall. The depth of the water recovery pool is 7m, and a number of lifting pumps 5 are arranged on the pool wall at the lower side of the water recovery pool.
[0026] During specific use, the sludge water enters the U-shaped pre-sedimentation tank 2 from the water inlet pipe 1. Due to the depth difference of the U-shaped pre-sedimentation tank 2, the sludge water gradually flows from the flat side of the U-shaped pre-sedimentation tank 2 connected to the water inlet pipe 1 to the curved side. After the deeper area of the curved side is filled, the water surface gradually spreads to the flat sides of the U-shaped pre-sedimentation tank 2, and the bottom sludge also spreads from the curved side to the flat sides until the water surface reaches the overflow port 3. The precipitated clean water will enter the flow channel 4 from the overflow port 3, and after being filtered and processed by the mechanical grille 8 of the recycling water system, it will enter the recycling pool from the outlet 9 for storage. If the clean water stored in the recycling pool needs to be reused, the staff can turn on the recycling pump 5 to pump the water out of the recycling pool for use. After most of the clean water in the U-shaped pre-sedimentation tank 2 flows out, the staff can use an excavator to clean the sludge in the pool.
[0027] Example 2
[0028] The difference between Example 2 and Example 1 is that the U-shaped pre-sedimentation tank 2 is a stepped structure from the flat side connected to the water inlet pipe 1 to the curved side, and its depth gradually deepens, and is a stepped structure from the curved side to the other side, and its depth gradually becomes shallower. In specific use, the sludge water enters the U-shaped pre-sedimentation tank 2 from the water inlet pipe 1, and when the water flow contacts the stepped plane, part of the silt will remain on each step plane. After natural sedimentation, the silt will not only gradually accumulate from the curved side, but also partially accumulate on the stepped plane. For this small amount of silt, the staff can manually remove it at any time to reduce the frequency of using the excavator.
[0029] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. A sludge cleaning structure for a recycling pool, comprising a pre-sedimentation tank, a flow channel and a recycling pool arranged in sequence, characterized in that: The pre-sedimentation tank is a U-shaped pre-sedimentation tank, which includes an arc-shaped edge and flat edges on both sides. The depth of the U-shaped pre-sedimentation tank gradually deepens from the flat edges on both sides to the arc-shaped edges. One side of the U-shaped pre-sedimentation tank includes an overflow port, and the overflow port is connected to one end of the flow channel; a mechanical grid of a recycled water system is provided on the flow channel, and the other end of the flow channel is connected to a recycled water tank.
2. A recycling pool sludge cleaning structure according to claim 1, characterized in that: The U-shaped pre-sedimentation tank has a slope structure from the flat sides to the arc-shaped sides on both sides.
3. A recycling pool sludge cleaning structure according to claim 1, characterized in that: The U-shaped pre-sedimentation tank has a stepped structure from the flat sides to the arc-shaped sides.
4. A recycling pool sludge cleaning structure according to claim 2 or 3, characterized in that: The U-shaped pre-sedimentation tank is connected with a water inlet pipe near the flat edge on the side away from the overflow port.
5. A recycling pool sludge cleaning structure according to claim 4, characterized in that: The flat side depth of the U-shaped pre-sedimentation tank connected to the water inlet pipe is 0.1m, the flat side depth on the overflow side is 0.2m, and the depth at the curved side is 1.2m.
6. A recycling pool sludge cleaning structure according to claim 5, characterized in that: The recovery pool and flow channel have a depth of 7m.
7. A recycling pool sludge cleaning structure according to claim 6, characterized in that: The recovery water pool is provided with a plurality of lifting pumps.
8. A recycling pool sludge cleaning structure according to claim 7, characterized in that: A hidden beam is arranged at the rear side of the mechanical grille of the water recovery system.