Multi-stage sedimentation tank for construction site

Abstract

The utility model relates to the field of engineering construction, and discloses a multi-stage sedimentation tank for a construction site, which comprises a water inlet pipe, a sedimentation tank, a filtering device and a water outlet pipe, the water inlet pipe is connected with the top of the sedimentation tank, and the water outlet pipe is connected with the bottom of the sedimentation tank; at least two partition plates are arranged in the sedimentation tank at intervals from top to bottom, the at least two partition plates are horizontally arranged, and each partition plate is provided with an overflow port; the filtering device comprises filtering pieces, and each filtering piece is arranged at the corresponding overflow opening; the filtering piece comprises a fixing frame and a filtering layer arranged on the fixing frame in a sleeving mode, the fixing frame comprises a plurality of frames which are spliced with one another, a cavity is formed in each frame, and each cavity is filled with a buffer layer used for weakening the impact force of water flow. According to the utility model, the partition plate and the filter piece are arranged in the sedimentation tank, so that construction wastewater can be treated in time under the condition that the flow of the construction wastewater is relatively large.

Description

Technical Field

[0001] The utility model relates to the field of engineering construction, in particular to a multi-stage sedimentation tank used in a construction site. Background Art

[0002] During the construction process, construction wastewater is easily generated by ground washing in the construction area, construction machinery installation and machinery washing. The construction wastewater mainly contains mud and sand, with a small amount of oil pollution and a high concentration of suspended matter.

[0003] At present, the treatment of construction wastewater generally adopts the method of building a sedimentation tank on the surface of the construction area. The sedimentation tank stores water and sediments, so that the suspended matter such as mud and sand in the construction wastewater settles to the bottom of the tank, and the clean water flows into the municipal drainage system from the overflow. However, during the rainy season or the peak period of on-site construction, the flow of construction wastewater increases, and the sedimentation tank will not be completely precipitated. The construction wastewater is discharged into the municipal drainage system, resulting in the sedimentation tank being unable to precipitate and purify the construction wastewater when the flow of construction wastewater is large. Utility Model Content

[0004] The utility model aims to provide a multi-stage sedimentation tank for a construction site, which can timely treat construction wastewater when the flow rate is large by arranging partitions and filtering elements.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a multi-stage sedimentation tank for use at a construction site, which comprises a water inlet pipe, a sedimentation tank, a filtering device and a water outlet pipe;

[0006] The water inlet pipe is connected to the top of the sedimentation tank, and the water outlet pipe is connected to the bottom of the sedimentation tank;

[0007] At least two partitions are arranged from top to bottom inside the sedimentation tank, the partitions are arranged horizontally, and each partition is provided with an overflow port;

[0008] The filter device includes a filter element, and each overflow port is provided with the filter element; the filter element includes a fixing frame and a filter layer sleeved on the fixing frame, the fixing frame includes a plurality of frames spliced ​​to each other, and each frame is provided with a cavity inside, and the cavity is filled with a buffer layer for weakening the impact force of the water flow.

[0009] In one embodiment, the partition is provided with two, which are a first partition and a second partition sequentially arranged inside the sedimentation tank, the first partition and the second partition sequentially divide the sedimentation tank into a primary sedimentation tank, a secondary sedimentation tank and a tertiary sedimentation tank, the first partition is provided with a first overflow port connecting the primary sedimentation tank and the secondary sedimentation tank, and the second partition is provided with a second overflow port connecting the secondary sedimentation tank and the tertiary sedimentation tank;

[0010] The filter device includes a first filter element and a second filter element. The first filter element is located on the first overflow port, and one end of the first filter element is connected to the first partition plate, and the other end is connected to the sedimentation tank. The second filter element is located at the second overflow port, and one end of the second filter element is connected to the second partition plate, and the other end is connected to the sedimentation tank.

[0011] In one embodiment, the filter device further includes a third filter element, and the third filter element is disposed on the water inlet pipe.

[0012] In one embodiment, the buffer layer is a crushed stone layer.

[0013] In one embodiment, the second filter element is provided with a reinforcement layer, and the reinforcement layer covers the outer circumference of the second filter element.

[0014] In one embodiment, the first overflow port is located at an opposite side of the second overflow port, and a flow rate of the first overflow port is smaller than a flow rate of the second overflow port.

[0015] In one embodiment, a first slot is provided at one end of the first partition plate close to the first overflow port and at one end of the sedimentation tank close to the first overflow port, and the first filter element is fixed at the first overflow port through the first slot.

[0016] In one embodiment, a second slot is provided at one end of the second partition plate close to the second overflow port and at one end of the sedimentation tank close to the second overflow port, and the second filter element is fixed at the second overflow port through the second slot.

[0017] Compared with the prior art, the multi-stage sedimentation tank used in the construction site of the utility model has the following beneficial effects:

[0018] By setting the partition, multiple sedimentation can be achieved inside the sedimentation tank, and the construction wastewater entering the sedimentation tank from the water inlet pipe is discharged from the water outlet pipe after multiple sedimentation and purification. At the same time, the filtering device is set, wherein each overflow port is provided with a filter element, so that the filter element filters and purifies the construction wastewater in the process of flowing out through the overflow port after each sedimentation and purification, so as to ensure that the construction wastewater can meet the drainage requirements of the municipal drainage system after multiple sedimentation purifications and multiple filtration purifications.

[0019] Through the setting of the fixing frame and the buffer layer, the fixing frame is composed of several mutually spliced ​​frames, and the overall structural strength of the fixing frame is relatively high, so that the filter element can effectively filter the construction wastewater with a large flow rate, and avoid the situation where the filter element is washed away from the overflow port by the construction wastewater; wherein, the setting of the buffer layer buffers the flow of water passing through the filter element, diverts the water flow, reduces the impact of the water flow on the sedimentation tank, and prolongs the service life of the sedimentation tank. The sedimentation purification effect and filtration purification effect of the device on construction wastewater are greatly enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of a multi-stage sedimentation tank used at a construction site according to an embodiment of the utility model.

[0021] Figure 2 It is a schematic diagram of the transfer structure of the third filter element.

[0022] Figure 3 It is a schematic diagram of the transfer structure of the first filter element.

[0023] Figure 4 It is a schematic diagram of the transfer structure of the second filter element.

[0024] Figure 5 It is a structural schematic diagram of a fixing frame of a multi-stage sedimentation tank used at a construction site according to an embodiment of the utility model.

[0025] Figure 6 It is a cross-sectional view of a multi-stage sedimentation tank used at a construction site according to an embodiment of the utility model.

[0026] In the figure, 10, sedimentation tank; 11, primary sedimentation tank; 12, secondary sedimentation tank; 13, tertiary sedimentation tank; 14, first baffle; 141, first slot; 15, second baffle; 151, second slot; 16, first overflow port; 17, second overflow port;

[0027] 20. Filter device; 21. First filter element; 22. Second filter element; 23. Third filter element; 24. Fixing frame; 241. Frame;

[0028] 30. Water inlet pipe;

[0029] 40. Water outlet pipe. DETAILED DESCRIPTION

[0030] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] In the description of the present utility model, it should be understood that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. The terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0032] In the description of the present invention, it should be understood that the terms "height", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used in the present invention to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present invention, it should be understood that the terms "first" and "second" are used in the present invention for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0034] like Figure 1-6 As shown, the utility model preferably provides a multi-stage sedimentation tank for use at a construction site, which includes a water inlet pipe 30, a sedimentation tank 10, a filtering device 20 and a water outlet pipe 40;

[0035] The water inlet pipe 30 is connected to the top of the sedimentation tank 10, and the water outlet pipe 40 is connected to the bottom of the sedimentation tank 10;

[0036] At least two partitions are arranged from top to bottom inside the sedimentation tank 10, at least two of the partitions are arranged horizontally, and each partition is provided with an overflow port;

[0037] The filter device 20 includes a filter element, and each overflow port is provided with the filter element; the filter element includes a fixing frame 24 and a filter layer sleeved on the fixing frame 24, and the fixing frame 24 includes a plurality of frames 241 spliced ​​to each other, and each of the frames 241 is provided with a cavity inside, and the cavity is filled with a buffer layer for weakening the impact force of the water flow.

[0038] Based on the above technical features, through the setting of the partition, the interior of the sedimentation tank 10 can achieve multiple sedimentations, and the construction wastewater entering the sedimentation tank 10 from the water inlet pipe 30 is discharged from the water outlet pipe 40 after multiple sedimentation and purification. At the same time, the filter device 20 is set, wherein each of the overflow ports is provided with a filter element, so that the filter element filters and purifies the construction wastewater in the process of flowing out through the overflow port after each sedimentation and purification, so as to ensure that the construction wastewater can meet the drainage requirements of the municipal drainage system after multiple sedimentation and purification and multiple filtration and purification; through the setting of the fixed frame 24 and the buffer layer, wherein the fixed frame 24 has several frames 241 spliced ​​to each other, and the overall structural strength of the fixed frame 24 is relatively high, so that the filter element can effectively filter the construction wastewater with a large flow rate, and avoid the situation where the filter element is washed away from the overflow port by the construction wastewater; wherein, the setting of the buffer layer buffers the water flow passing through the filter element, diverts the water flow, and reduces the impact of the water flow on the sedimentation tank 10.

[0039] As some embodiments of the present utility model, Figure 1-6 As shown, the partition is provided with two, which are respectively a first partition 14 and a second partition 15 which are sequentially arranged inside the sedimentation tank 10, the first partition 14 and the second partition 15 sequentially divide the sedimentation tank 10 into a primary sedimentation tank 11, a secondary sedimentation tank 12 and a tertiary sedimentation tank 13, the first partition 14 is provided with a first overflow port 16 connecting the primary sedimentation tank 11 and the secondary sedimentation tank 12, the second partition 15 is provided with a second overflow port 17 connecting the secondary sedimentation tank 12 and the tertiary sedimentation tank 13;

[0040] The filtering device 20 includes a first filter element 21 and a second filter element 22. The first filter element 21 is located on the first overflow port 16, and one end of the first filter element 21 is connected to the first partition plate 14, and the other end is connected to the sedimentation tank 10. The second filter element 22 is located at the second overflow port 17, and one end of the second filter element 22 is connected to the second partition plate 15, and the other end is connected to the sedimentation tank 10.

[0041] By arranging a primary sedimentation tank 11, a secondary sedimentation tank 12 and a tertiary sedimentation tank 13 in the sedimentation tank 10, the construction wastewater entering the sedimentation tank 10 is subjected to multiple sedimentation and purification effects. At the same time, by arranging the filtering device 20, wherein the first filter element 21 is located on the first overflow port 16, the construction wastewater overflowing from the primary sedimentation tank 11 into the secondary sedimentation tank 12 is subjected to the first filtering and purification treatment. At the same time, one end of the first filter element 21 is connected to the first partition plate 14, and the other end is connected to the sedimentation tank 10, so that the first filter element 21 can effectively filter the construction wastewater with a large flow rate; wherein the second filter element 22 is located on the second overflow port 17, so that the construction wastewater overflowing from the secondary sedimentation tank 12 into the tertiary sedimentation tank 13 is subjected to the second filtering and purification treatment. At the same time, one end of the second filter element 22 is connected to the second partition plate 15, and the other end is connected to the sedimentation tank 10, so that the second filter element 22 can effectively filter the construction wastewater with a large flow rate.

[0042] As some embodiments of the utility model, the water inlet pipe 30 is arranged at one end of the primary sedimentation tank 11 away from the first partition 14, and a third filter element 23 is arranged on the water inlet pipe 30. The third filter element 23 is arranged to perform preliminary filtration on the construction wastewater discharged from the water inlet pipe 30 into the sedimentation tank 10, so as to prevent larger debris from entering the sedimentation tank 10 and affecting the sedimentation purification of the sedimentation tank 10.

[0043] As some embodiments of the present invention, the buffer layer is a crushed stone layer, so that the material of the buffer layer can be obtained at the construction site, reducing the material cost of the buffer layer.

[0044] As some embodiments of the utility model, the second filter element 22 is provided with a reinforcement layer, and the reinforcement layer covers the outer periphery of the second filter element 22. Through the provision of the reinforcement layer, the filtering effect of the second filter element 22 is higher than that of the first filter element 21, and the construction wastewater after multiple sedimentation and filtration can meet the drainage requirements of the municipal drainage system. At the same time, the sediment content of the wastewater after multiple sedimentation is greatly reduced, which avoids the silt blocking the outlet pipe 40 during the drainage process, thereby enhancing the purification capacity of the sedimentation tank 10.

[0045] As some embodiments of the present invention, the first overflow port 16 is located on the opposite side of the second overflow port 17, and the flow rate of the first overflow port 16 is smaller than the flow rate of the second overflow port 17. The water flow path of the construction wastewater in the sedimentation tank 10 flowing from the first overflow port 16 to the second overflow port 17 is the maximum path, which provides more time for the sedimentation of the construction wastewater and avoids the situation where the construction wastewater in the sedimentation tank 10 is insufficiently precipitated.

[0046] As some embodiments of the utility model, the first baffle 14 and the sedimentation tank 10 are both provided with a first slot 141 at one end close to the first overflow port 16, and the first filter element 21 is fixed at the first overflow port 16 through the first slot 141. Through the provision of the first slot 141, the first filter element 21 can be firmly fixed between the first baffle 14 and the inner wall of the sedimentation tank 10, so that the first filter element 21 can stably perform the filtering operation, and the first slot 141 can be preset in advance during the construction of the sedimentation tank 10 and the first baffle 14, so that the installation of the first filter element 21 is more convenient.

[0047] As some embodiments of the utility model, the second partition 15 and the sedimentation tank 10 are both provided with a second card slot 151 at one end close to the second overflow port 17, and the second filter element 22 is fixed at the second overflow port 17 through the second card slot 151. Through the provision of the second card slot 151, the second filter element 22 can be firmly fixed between the second partition 15 and the inner wall of the sedimentation tank 10, so that the second filter element 22 can stably perform the filtering operation, and the second card slot 151 can be preset in advance during the construction of the sedimentation tank 10 and the second partition 15, so that the installation of the second filter element 22 is more convenient.

[0048] Furthermore, the first filter element 21 and the second filter element 22 are detachably installed with the sedimentation tank 10 through the first card slot 141 and the second card slot 151, so that the staff can promptly disassemble the first filter element 21 and the second filter element 22 and remove the pollutants on the first filter element 21 and the second filter element 22 to ensure the filtering effect of the first filter element 21 and the second filter element 22.

[0049] In summary, the embodiment of the utility model provides a multi-stage sedimentation tank 10 for a construction site, which can achieve multiple sedimentation inside the sedimentation tank 10 through the setting of the partition, and the construction wastewater entering the sedimentation tank 10 from the water inlet pipe 30 is discharged from the water outlet pipe 40 after multiple sedimentation and purification; at the same time, the filter device 20 is set, wherein each of the overflow ports is provided with a filter element, so that the construction wastewater is filtered and purified by the filter element during the process of flowing out through the overflow port after each sedimentation and purification, so as to ensure that the construction wastewater can meet the municipal drainage system after multiple sedimentation purifications and multiple filtration purifications. Drainage requirements; through the setting of the fixing frame 24 and the buffer layer, wherein the fixing frame 24 comprises several mutually spliced ​​frames 241, the overall structural strength of the fixing frame 24 is relatively high, so that the filter element can effectively filter the construction wastewater with a large flow rate, and avoid the situation where the filter element is washed away from the overflow port by the construction wastewater; wherein, the setting of the buffer layer buffers the water flow through the filter element, diverts the water flow, reduces the impact force of the water flow on the sedimentation tank 10, prolongs the service life of the sedimentation tank 10, and greatly enhances the sedimentation purification effect and filtration purification effect of the device for construction wastewater.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A multi-stage sedimentation tank for a construction site, characterized in that: It includes water inlet pipe, sedimentation tank, filter device and water outlet pipe; The water inlet pipe is connected to the top of the sedimentation tank, and the water outlet pipe is connected to the bottom of the sedimentation tank; At least two partitions are arranged from top to bottom inside the sedimentation tank, the partitions are arranged horizontally, and each partition is provided with an overflow port; The filter device includes a filter element, and each overflow port is provided with the filter element; the filter element includes a fixing frame and a filter layer sleeved on the fixing frame, the fixing frame includes a plurality of frames spliced ​​to each other, and each frame is provided with a cavity inside, and the cavity is filled with a buffer layer for weakening the impact force of the water flow.

2. The multi-stage sedimentation tank for construction site according to claim 1, characterized in that: The partition is provided with two, which are respectively a first partition and a second partition sequentially arranged inside the sedimentation tank, the first partition and the second partition sequentially divide the sedimentation tank into a primary sedimentation tank, a secondary sedimentation tank and a tertiary sedimentation tank, the first partition is provided with a first overflow port connecting the primary sedimentation tank and the secondary sedimentation tank, and the second partition is provided with a second overflow port connecting the secondary sedimentation tank and the tertiary sedimentation tank; The filter device includes a first filter element and a second filter element. The first filter element is located on the first overflow port, and one end of the first filter element is connected to the first partition plate, and the other end is connected to the sedimentation tank. The second filter element is located at the second overflow port, and one end of the second filter element is connected to the second partition plate, and the other end is connected to the sedimentation tank.

3. The multi-stage sedimentation tank for construction site according to claim 2, characterized in that: The filter device further comprises a third filter element, and the third filter element is arranged on the water inlet pipe.

4. The multi-stage sedimentation tank for construction sites according to claim 1, characterized in that: The buffer layer is a gravel layer.

5. The multi-stage sedimentation tank for construction site according to claim 2, characterized in that: The second filter element is provided with a reinforcement layer, and the reinforcement layer covers the outer circumference of the second filter element.

6. The multi-stage sedimentation tank for construction sites according to claim 2, characterized in that: The first overflow port is located at an opposite side of the second overflow port, and a flow rate of the first overflow port is smaller than a flow rate of the second overflow port.

7. The multi-stage sedimentation tank for construction sites according to claim 2, characterized in that: One end of the first partition plate close to the first overflow port and one end of the sedimentation tank close to the first overflow port are both provided with a first clamping groove, and the first filter element is fixed at the first overflow port through the first clamping groove.

8. The multi-stage sedimentation tank for construction sites according to claim 2, characterized in that: A second slot is provided at one end of the second partition plate close to the second overflow port and at one end of the sedimentation tank close to the second overflow port, and the second filter element is fixed at the second overflow port through the second slot.

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