Steel plate water tank sedimentation tank for construction water recycling

Abstract

The utility model provides a steel plate water tank sedimentation tank for construction water recycling, its characterized in that, include: primary sedimentation tank and secondary sedimentation tank, primary sedimentation tank and secondary sedimentation tank include the waterproof side plate of detachable connection, first base and second base, the communication pipe, the communication pipe will primary sedimentation tank's upper portion with secondary sedimentation tank's upper portion intercommunication, utilize gravitational potential energy to make the supernatant in primary sedimentation tank flow into secondary sedimentation tank, a plurality of overflow flume, overflow flume sets up in secondary sedimentation tank water outlet upper portion, overflow flume's water inlet is lower than the communication pipe in secondary sedimentation tank's entrance, to make the clean water after two -stage sedimentation by overflow mode and discharge. Adopt modularization, detachable tank body structure, fundamentally solved the sedimentation tank disposable, immovable problem. Two -stage gravity flow deposition, need not extra power to realize water body's automatic grading purification, simple structure is reliable.

Description

Technical Field

[0001] This utility model relates to the field of building technology, specifically to a steel plate water tank sedimentation tank for construction water recycling. Background Technology

[0002] In modern construction, green construction and water conservation have become important indicators. Construction sites generate large amounts of wastewater containing suspended solids such as silt and concrete residue, including vehicle washing water and concrete curing water. To meet environmental protection requirements and reduce water costs, this wastewater usually needs to be treated and recycled. Currently, the sedimentation tanks commonly used on construction sites are mostly temporary civil engineering structures excavated on-site or built with bricks. However, these traditional sedimentation tanks have a prominent problem: they have long construction cycles, complex construction processes, and cannot be moved or reused after being put into use. After the project is completed, they can only be abandoned or demolished and backfilled, which not only wastes building materials and increases costs, but also generates secondary construction waste during the demolition process. This contradicts the concepts of green construction and sustainable development and cannot adapt to the characteristics of short construction cycles and flexible site changes in modern construction projects. Utility Model Content

[0003] This utility model provides a steel plate water tank sedimentation tank for construction water recycling. Its purpose is to provide a construction wastewater recycling device that can be quickly deployed, is reusable, has a simple structure, and is highly efficient in treatment.

[0004] This utility model provides a steel plate water tank sedimentation tank for construction water recycling, characterized in that it includes: A primary sedimentation tank and a secondary sedimentation tank, wherein the primary sedimentation tank and the secondary sedimentation tank include a detachably connected waterproof side plate, a first base and a second base; A connecting pipe connects the upper part of the primary sedimentation tank to the upper part of the secondary sedimentation tank, using gravitational potential energy to allow the supernatant in the primary sedimentation tank to flow into the secondary sedimentation tank. Several overflow troughs are provided, which are located above the outlet of the secondary sedimentation tank. The inlet of the overflow trough is lower than the inlet of the connecting pipe in the secondary sedimentation tank, so that the clean water after secondary sedimentation can be discharged by overflow.

[0005] Furthermore, the inlet of the primary sedimentation tank is detachably connected to a steel bar to intercept large particulate matter in the construction wastewater.

[0006] Furthermore, both the primary sedimentation tank and the secondary sedimentation tank are provided with sludge discharge troughs at the bottom. The sludge discharge troughs are set at the bottom and have a sludge discharge port at the center. The sludge discharge troughs are inclined toward the sludge discharge port.

[0007] Furthermore, a sludge discharge valve that can be controlled to open and close is provided at the outlet of the sludge discharge port.

[0008] Furthermore, the top four corners of both the primary and secondary sedimentation tanks are fixedly connected with lifting lugs.

[0009] Furthermore, the first connecting groove is fixedly connected to the connection between the connecting pipe and the primary sedimentation tank, and the second connecting groove is fixedly connected to the connection between the connecting pipe and the secondary sedimentation tank. The first connecting groove and the second connecting groove are horizontally extended smooth grooves used to slow down the flow rate of water entering the secondary sedimentation tank.

[0010] Furthermore, an overflow platform is provided at the connection between the primary sedimentation tank and the connecting pipe, and the top plane of the overflow platform is inclined towards the first connecting trough.

[0011] This utility model has at least the following beneficial effects: This invention provides a steel plate water tank sedimentation tank for construction water recycling. By employing a modular, detachable tank structure consisting of waterproof side plates and a base, it fundamentally solves the problem of traditional sedimentation tanks being disposable and immovable. This allows the sedimentation tank to be prefabricated in the factory like standard equipment, quickly assembled on-site, and significantly shortens the construction cycle. After the project is completed, it can be easily disassembled, hoisted, and transferred to the next construction site for reuse, realizing the preservation and recycling of equipment assets, significantly reducing the cost per use, avoiding construction waste generated during demolition, and fully conforming to the modern construction concepts of green, energy-saving, and environmental protection. Simultaneously, the two-stage gravity flow sedimentation achieves automatic graded purification of water without additional power, and the structure is simple and reliable. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of a steel plate water tank sedimentation tank for construction water recycling according to the present invention; Figure 2 This is a cross-sectional view of a steel plate water tank sedimentation tank for construction water recycling according to the present invention. In the diagram: 1. Primary sedimentation tank; 2. Secondary sedimentation tank; 3. First base; 4. Second base; 5. Lifting lug; 6. Connecting pipe; 7. Grille; 8. Sludge discharge trough; 9. Sludge discharge port; 10. First connecting trough; 11. Second connecting trough; 12. Overflow platform; 13. Overflow trough; 14. Water outlet pipe. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-2 This utility model provides a steel plate water tank sedimentation tank for construction water recycling, including a primary sedimentation tank 1 and a secondary sedimentation tank 2. The bottom of the primary sedimentation tank is fixedly connected to a first base 3, and the bottom of the secondary sedimentation tank 2 is fixedly connected to a second base 4. Both the primary sedimentation tank 1 and the secondary sedimentation tank 2 are enclosed by waterproof side plates. The bottom of each waterproof side plate is fixedly connected to the top of the first base 3 or the second base 4. The four corners of the top of the primary sedimentation tank 1 and the secondary sedimentation tank 2 are respectively fixedly connected to lifting lugs 5. A connecting pipe 6 connects the primary sedimentation tank 1 and the secondary sedimentation tank 2.

[0015] Lifting lugs 5 are installed on the top of the enclosure, providing standardized connection points for the overall hoisting, transportation and precise on-site positioning of the equipment, which greatly improves the efficiency and safety of installation and relocation.

[0016] In this embodiment of the invention, the first base 3 is located on the ground or in a pit below the ground level. The inlet of the primary sedimentation tank 1 is detachably equipped with a grid 7. Wastewater from the construction site is collected through drainage and then passes through the grid 7 into the primary sedimentation tank 1. The second base 4 is located on the ground or in a pit below the ground level. The outlet of the primary sedimentation tank 1 is higher than the inlet of the secondary sedimentation tank 2, allowing the clarified liquid at the top of the primary sedimentation tank 1 to enter the secondary sedimentation tank 2. Before the wastewater enters the primary sedimentation tank 1, the grid 7 effectively intercepts large particles such as stones and plastic bags, preventing them from entering the tank and causing blockages or affecting the sedimentation effect. This plays an important pretreatment role and protects subsequent equipment.

[0017] As an optional embodiment, both the first base 3 and the second base 4 are provided with sludge discharge troughs 8 at their tops. A sludge discharge port 9 is located at the center of each sludge discharge trough 8. The sludge discharge trough 8 is a sunken trough body, and its structure is a four-sided pyramidal trough inclined towards the sludge discharge port 9 at an angle of 5% to 10% to control the discharge rate of sludge. A manual valve and a sludge discharge pipe are sequentially connected from the bottom of the sludge discharge port 9. The conical or sloping bottom structure utilizes gravity to guide the settled sludge to automatically gather towards the sludge discharge port 9 at the center or lowest point, avoiding the tedious process of manual sludge removal and making sludge discharge more thorough and efficient. The valve installed at the sludge discharge port 9 enables precise control of the sludge discharge process, allowing for periodic and quantitative sludge discharge based on sludge settling conditions. This is easy to operate and effectively prevents wastewater leakage during non-sludge discharge periods.

[0018] As an example of implementation, a first connecting channel 10 is connected between the connecting pipe 6 and the primary sedimentation tank 1. The first connecting channel 10 is a smoothly extending channel that reduces the flow rate of the liquid flowing out of the primary sedimentation tank 1, thereby reducing the amount of sediment carried up from the bottom that enters the secondary sedimentation tank 2.

[0019] As an example of implementation, a second connecting channel 11 is connected between the connecting pipe 6 and the secondary sedimentation tank 2. The second connecting channel 11 is a smoothly extending channel that reduces the flow rate of the liquid flowing into the secondary sedimentation tank 2, thereby reducing the amount of sediment carried up from the bottom that enters the outlet of the secondary sedimentation tank 2.

[0020] In one possible implementation in actual use, the first connecting channel 10 is located below the top edge of the primary sedimentation tank 1, and the second connecting channel 11 is located at the top edge of the secondary sedimentation tank 2. The second connecting channel 11 is slightly lower than the first connecting channel 10. The first connecting channel 10, the second connecting channel 11, and the connecting pipe 6 are all inclined, with an inclination angle of less than 3%.

[0021] In one possible implementation in practical use, an overflow platform 12 is fixedly connected to the connection point between the primary sedimentation tank 1 and the first connecting channel 10. The end of the overflow platform 12 furthest from the connection point with the first connecting channel 10 is higher than the connection point. The inclination angle of the overflow platform 12 is no greater than 5% to prevent liquid from being unable to smoothly enter the connecting pipe 6. Setting an inclined overflow platform 12 at the outlet of the primary sedimentation tank 1 ensures that only the clearest supernatant on the surface can smoothly enter the connecting pipe 6, effectively preventing the bottom sediment from being carried away by water flow fluctuations, further improving the influent water quality and overall purification efficiency of the secondary sedimentation tank 2.

[0022] In one possible implementation in actual use, the outlet of the secondary sedimentation tank 2 is a plurality of overflow channels 13. The plurality of overflow channels 13 are horizontally and parallelly opened on the side of the secondary sedimentation tank 2 away from the connecting pipe 6. The overflow channels 13 have an overflow weir structure, the overflow channels 13 are connected to the outside, and the bottom of the overflow channels 13 is connected to the outlet pipe 14.

[0023] Overflow platform 12 is an overflow weir structure that ensures that only the cleanest water from the top layer of the water body overflows and enters the recycling system.

[0024] The working process of this utility model is as follows: Construction wastewater first passes through a steel grating 7 to filter out large debris such as leaves and stones before entering the primary sedimentation tank 1 for initial sedimentation. Most of the suspended solids, including silt, settle to the bottom of the tank under gravity. When the water level rises to the height of the overflow platform 12, the clearer supernatant automatically flows through the overflow platform 12, the first connecting channel 10, the connecting pipe 6, and the second connecting channel 11 into the secondary sedimentation tank 2. In the secondary sedimentation tank 2, the water flow rate slows down, allowing for more refined secondary sedimentation. The clean water at the top finally overflows through the lower overflow channel 13, achieving purification and recycling.

[0025] The beneficial effects of this utility model are as follows: The entire process is automated, requiring no manual intervention or electricity consumption. Its conical bottom design and sludge discharge port 9 make sludge cleaning very convenient and maintenance simple. Since all connections are detachable, the entire set of equipment can be easily disassembled, hoisted and transported for use at the next construction site after the project is completed, realizing the recycling value of the equipment.

[0026] The above description is only a preferred embodiment of the present utility model. For those skilled in the art, several modifications and improvements can be made without departing from the concept of the present utility model, and these should all be considered within the protection scope of the present utility model.

Claims

1. A steel plate water tank sedimentation tank for construction water recycling, characterized in that, include: A primary sedimentation tank (1) and a secondary sedimentation tank (2), wherein the primary sedimentation tank (1) includes a first base (3) and a waterproof side plate disposed on the first base (3), and the secondary sedimentation tank (2) includes a second base (4) and a waterproof side plate disposed on the second base (4); A connecting pipe (6) connects the upper part of the primary sedimentation tank (1) to the upper part of the secondary sedimentation tank (2), and uses gravitational potential energy to make the supernatant in the primary sedimentation tank (1) flow into the secondary sedimentation tank (2). Several overflow troughs (13) are provided above the outlet of the secondary sedimentation tank (2). The inlet of the overflow trough (13) is lower than the inlet of the connecting pipe (6) in the secondary sedimentation tank (2) so that the clean water after secondary sedimentation can be discharged by overflow.

2. The steel plate water tank sedimentation tank according to claim 1, characterized in that: The inlet of the primary sedimentation tank (1) is detachably connected to a steel grating (7) for intercepting large particles of debris in the construction wastewater.

3. The steel plate water tank sedimentation tank according to claim 1, characterized in that: Both the primary sedimentation tank (1) and the secondary sedimentation tank (2) are provided with sludge discharge troughs (8) at the bottom. The sludge discharge troughs (8) are set at the bottom and a sludge discharge port (9) is provided at the center of the sludge discharge troughs. The sludge discharge troughs (8) are inclined toward the sludge discharge port (9).

4. The steel plate water tank sedimentation tank according to claim 3, characterized in that: The sludge discharge valve at the outlet of the sludge discharge port (9) can be controlled to open and close.

5. The steel plate water tank sedimentation tank according to claim 1, characterized in that: The four corners of the top of the primary sedimentation tank (1) and the secondary sedimentation tank (2) are all fixedly connected with lifting lugs (5).

6. The steel plate water tank sedimentation tank according to claim 1, characterized in that: The first connecting groove (10) is fixedly connected to the connection between the connecting pipe (6) and the first sedimentation tank (1), and the second connecting groove (11) is fixedly connected to the connection between the connecting pipe (6) and the second sedimentation tank (2). The first connecting groove (10) and the second connecting groove (11) are horizontally extended smooth grooves used to slow down the flow rate of water entering the second sedimentation tank (2).

7. The steel plate water tank sedimentation tank according to claim 6, characterized in that: An overflow platform (12) is provided at the connection between the primary sedimentation tank (1) and the connecting pipe (6), and the top plane of the overflow platform (12) is inclined toward the first connecting groove (10).

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