Efficient sedimentation tank structure for water treatment

Abstract

An efficient sedimentation tank structure for water treatment comprises a water storage tank, the water storage tank is communicated with a water inlet pipe opening of a sedimentation tank through a conveying pipeline, a water drainage pipe opening is further formed in the sedimentation tank, a first control valve is installed on the conveying pipeline or the water inlet pipe opening, and a second control valve is installed on the water drainage pipe opening. A filter plate is installed in the settling box in a vertical sliding and sealing mode, a pressing device is installed above the settling box, the pressing device is connected with the filter plate, the pressing device drives the filter plate to slide vertically, and when the filter plate moves downwards to the lower limit of the pressing device or the settling box, the drainage pipe opening is located above the filter plate. The liftable filter plate is mounted in the settling box, and when the filter plate moves downwards, water in the settling box is subjected to pressure filtration, so that the filtering efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a water treatment high-efficiency sedimentation tank structure. Background Art

[0002] Traditional sedimentation filtration in water treatment is to let impurities settle naturally under the action of gravity. Due to the light weight and long suspension time of impurities, the efficiency of the entire sedimentation filtration is low. In order to improve efficiency, Chinese patent document CN205516889U discloses a three-stage sedimentation filtration tank, which improves the efficiency of sedimentation filtration by setting a water filter baffle in the sedimentation filtration tank. Although the use of a water filter baffle can improve efficiency, the disadvantages are that, first, plants need to be planted inside the water filter baffle, which is inconvenient to use, and second, there are still many impurities in the filtered water, and the filtration effect is poor.

[0003] In order to improve the filtering effect, Chinese patent document CN211813571U discloses a sewage plant modified filter membrane sewage regeneration and reuse test system and a modified filter membrane, which forms a filter membrane pool by setting a PVDF original membrane or a modified filter membrane in a water pool, thereby achieving a better filtering effect. However, the water in the filter membrane pool is filtered under the action of gravity head, and the filtering efficiency is not high due to the large water resistance of the filter membrane. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to solve the problems existing in the above-mentioned background technology, and to provide a water treatment high-efficiency sedimentation tank structure, by installing a liftable filter plate in the sedimentation tank, when the filter plate moves downward, the water in the sedimentation tank is pressure filtered, thereby improving the filtering efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a water treatment high-efficiency sedimentation tank structure, including a water storage tank, which is connected to the water inlet pipe of the sedimentation tank through a delivery pipe, and a drainage pipe outlet is also provided on the sedimentation tank. A first control valve is installed on the delivery pipe or the water inlet pipe outlet, and a second control valve is installed on the drainage pipe outlet. A filter plate is installed inside the sedimentation tank in a manner that slides up and down and is sealed. A downward pressure device is installed above the sedimentation tank, and the downward pressure device is connected to the filter plate. The downward pressure device drives the filter plate to slide up and down. When the filter plate moves downward to the lower limit position of the downward pressure device or the sedimentation tank, the drainage pipe outlet is located above the filter plate.

[0006] A primary filter screen is installed in the water storage tank.

[0007] A transfer box is arranged on one side of the water storage tank, the water storage tank and the transfer box are connected through a pipeline, one end of the delivery pipeline is connected to the transfer box, and the other end is connected to the sedimentation tank, the filter is connected in series to the delivery pipeline, and a water pump is installed on the delivery pipeline at the upstream end of the filter.

[0008] A partition is arranged inside the water storage tank, a transfer box is formed on the other side of the partition, a channel is arranged on the partition, one end of the delivery pipe is connected to the transfer box, and the other end is connected to the sedimentation tank, the filter is connected in series to the delivery pipe, and a water pump is installed on the delivery pipe at the upstream end of the filter.

[0009] A vibrator is installed in the transfer box.

[0010] A support seat is installed on the upper side of the sedimentation box, and the downward pressing device is installed on the support seat.

[0011] The pressing device is a hydraulic cylinder or a gas cylinder.

[0012] The filter plate includes a support plate and a filter membrane. The support plate is provided with a plurality of water permeable holes. A positioning groove is also provided on one side of the support plate. The positioning groove surrounds the water permeable holes. A pressure block is installed in the positioning groove by screws. The filter membrane is laid on the side of the support plate where the positioning groove is provided. The filter membrane is pressed tightly in the positioning groove by the pressure block on all sides. An annular groove is provided on the side of the support plate in contact with the inner wall of the sedimentation box. A sealing member is installed in the annular groove. A reinforcement frame is installed on the other side of the support plate. A connecting seat is installed on the reinforcement frame. The connecting seat is used to be installed and connected with the downward pressure device.

[0013] The support plate is located on the side where the filter membrane is laid, and is provided with a groove at the end of the water permeable hole.

[0014] The utility model has the following beneficial effects:

[0015] 1. The water storage tank of the utility model is used to collect water that needs to be treated. The water flows into the sedimentation tank through the delivery pipe. At this time, the second control valve is closed. After the water in the sedimentation tank reaches the upper limit, the first control valve is closed, the downward pressure device is started, and the filter plate is driven to move downward. The water in the sedimentation tank passes through the filter plate and moves to the top of the filter plate. At this time, the water on the upper side of the filter plate is water with impurities removed, and the water on the lower side of the filter plate contains various impurities or organic matter. When the filter plate moves downward to the lower limit of the downward pressure device or the sedimentation tank, the second control valve is opened to drain water outward, and the water with impurities removed is discharged through the drainage pipe. By installing a filter plate that can be raised and lowered in the sedimentation tank, when the filter plate moves downward, the water in the sedimentation tank is pressure filtered, thereby improving the filtration efficiency.

[0016] 2. In the utility model, the water that has been initially filtered and precipitated in the water storage tank enters the transfer box, and the water in the transfer box is then pumped by a water pump and sent to the filter for re-filtration, thereby further reducing impurities in the water.

[0017] 3. A vibrator is installed in the transfer box of the utility model. The vibration generated by the vibrator can break the aggregation state of impurity particles suspended in the water and disperse them, thereby improving the efficiency of the subsequent filtering steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the main structure of the utility model.

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model from another viewing angle.

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model.

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the filter plate of the utility model.

[0024] In the figure, a water storage tank 1, a primary filter screen 11, a delivery pipeline 2, a water pump 21, a first control valve 22, a sedimentation box 3, a water inlet pipe port 31, a discharge pipe port 32, a second control valve 33, a support seat 34, a downward pressure device 4, a filter plate 5, a support plate 51, a water permeable hole 511, a groove 512, a positioning groove 513, a filter membrane 52, a pressure block 53, a screw 54, a ring groove 55, a seal 56, a reinforcement frame 57, a connecting seat 58, a transfer box 6, an exciter 7, and a filter 8. DETAILED DESCRIPTION

[0025] See also Figure 1-5 A water treatment high-efficiency sedimentation tank structure includes a water storage tank 1, which is connected to a water inlet pipe 31 of a sedimentation tank 3 through a delivery pipe 2. A drainage pipe 32 is also provided on the sedimentation tank 3. A first control valve 22 is installed on the delivery pipe 2 or the water inlet pipe 31, and a second control valve 33 is installed on the drainage pipe 32. A filter plate 5 is installed inside the sedimentation tank 3 so as to slide up and down and be sealed. A pressing device 4 is installed above the sedimentation tank 3. The pressing device 4 is connected to the filter plate 5. The pressing device 4 drives the filter plate 5 to slide up and down. When the filter plate 5 moves downward to the lower limit position of the pressing device 4 or the sedimentation tank 3, the drainage pipe 32 is located above the filter plate 5.

[0026] The water storage tank 1 is used to collect water to be treated. The water flows into the sedimentation tank 3 through the delivery pipe 2. At this time, the second control valve 33 is closed. After the water in the sedimentation tank 3 reaches the upper limit, the first control valve 22 is closed, the downward pressure device 4 is started, and the filter plate 5 is driven to move downward. The water in the sedimentation tank 3 passes through the filter plate 5 and moves to the top of the filter plate 5. At this time, the water on the upper side of the filter plate 5 is water with impurities removed, and the water on the lower side of the filter plate 5 contains various impurities or organic matter. When the filter plate 5 moves downward to the lower limit of the downward pressure device 4 or the sedimentation tank 3, the second control valve 33 is opened to drain water outward, and the water with impurities removed is discharged through the drainage pipe 32. By installing a filter plate 5 that can be raised and lowered in the sedimentation tank 3, when the filter plate 5 moves downward, the water in the sedimentation tank 3 is pressure filtered, thereby improving the filtering efficiency.

[0027] Preferably, the first control valve 22 and the second control valve 33 are pneumatic ball valves or electric ball valves.

[0028] Furthermore, a primary filter 11 is installed in the water tank 1. The primary filter 11 separates larger impurities in the water, and the impurities remain on the surface of the primary filter 11. The filtered water enters the water tank 1, reducing the filtering pressure of the filter plate 5.

[0029] Preferably, the primary filter 11 includes a grid support, and a stainless steel filter is installed above the grid support. The grid support plays a supporting role, and the stainless steel filter plays a filtering role. Since the primary filter 11 is a commonly used filtering structure in water treatment processes, primary filters of other structures can also be used here.

[0030] In the preferred solution, the water storage tank 1 and the transfer box 6 are split structures. Specifically, the transfer box 6 is arranged on one side of the water storage tank 1, and the water storage tank 1 and the transfer box 6 are connected through a pipeline. One end of the delivery pipeline 2 is connected to the transfer box 6, and the other end is connected to the sedimentation tank 3. The filter 8 is connected in series to the delivery pipeline 2, and a water pump 21 is installed on the delivery pipeline 2 at the upstream end of the filter 8. The water that is initially filtered and precipitated by the water storage tank 1 enters the transfer box 6, and the water in the transfer box 6 is then pumped by the water pump 21 and sent to the filter 8 for re-filtration to further reduce the impurities in the water.

[0031] Preferably, the filter 8 is a SBL basket filter or a bag filter.

[0032] During installation, the water outlet of the water pump 21 is connected to the water inlet of the filter 8 through the delivery pipe 2 , and the water outlet of the filter 8 is connected to the water inlet pipe port 31 of the sedimentation tank 3 through the delivery pipe 2 .

[0033] In another embodiment, see Figure 4The water storage tank 1 and the transfer box 6 are an integrated structure. Specifically, a partition 61 is provided inside the water storage tank 1, and the transfer box 6 is formed on the other side of the partition 61. A channel 62 is provided on the partition 61. One end of the delivery pipe 2 is connected to the transfer box 6, and the other end is connected to the sedimentation box 3. The filter 8 is connected in series to the delivery pipe 2, and a water pump 21 is installed on the delivery pipe 2 at the upstream end of the filter 8.

[0034] See also Figure 4 , a vibrator 7 is installed in the transfer box 6. The vibration generated by the vibrator can break the aggregation state of the impurity particles suspended in the water and disperse them, thereby improving the efficiency of the subsequent filtering steps.

[0035] Preferably, the vibrator 7 can adopt the vibrator disclosed in CN205874098U, a highly efficient sewage treatment device, and its installation form can also adopt the form in the document. In addition, an ultrasonic vibrator box can also be used. When in use, the ultrasonic vibrator in the ultrasonic vibrator box is electrically connected to the ultrasonic generator through a wire.

[0036] See also Figure 1-4 A support seat 34 is installed on the upper side of the sedimentation box 3, and the pressing device 4 is installed on the support seat 34. The structure is simple.

[0037] exist Figure 1 , 3 In the figure, a support seat 34 is provided, and a pressing device 4 is installed on the support seat 34. However, in order to ensure that the pressing device 4 can steadily press down the filter plate 5, two or more support seats 34 can be provided, and two pressing devices 4 are installed on each support seat 34, so that the filter plate 5 can be pressed down evenly.

[0038] exist Figure 1-3 In the figure, it is shown that mounting seats are respectively arranged on both sides of the sedimentation box 3, and both ends of the support seat 34 are detachably mounted on the mounting seats on both sides by bolts.

[0039] Preferably, the pressing device 4 is a hydraulic cylinder or a pneumatic cylinder.

[0040] See also Figure 5The filter plate 5 includes a support plate 51 and a filter membrane 52. The support plate 51 is provided with a plurality of water permeable holes 511. A positioning groove 513 is also provided on one side of the support plate 51. The positioning groove 513 surrounds the water permeable holes 511. A pressing block 53 is installed in the positioning groove 513 through a screw 54. The filter membrane 52 is laid on the side of the support plate 51 where the positioning groove 513 is provided. The filter membrane 52 is pressed tightly in the positioning groove 513 by the pressing block 53 around the filter membrane 52. An annular groove 55 is provided on the side of the support plate 51 that contacts the inner wall of the sedimentation box 3. A sealing member 56 is installed in the annular groove 55. A reinforcing frame 57 is installed on the other side of the support plate 51. A connecting seat 58 is installed on the reinforcing frame 57. The connecting seat 58 is used to be installed and connected with the pressing device 4.

[0041] The support plate 51 is used to install the filter membrane 52. The filter membrane 52 adopts industrial filter cloth. The industrial filter cloth has the characteristics of air permeability and filtering. The industrial filter cloth is a prior art and a commonly used filter material for sewage treatment. When the filter plate 5 moves downward, water is filtered through the filter membrane 52, and the filtered water comes to the upper side of the filter plate 5 through the water-permeable hole 511. The seal 56 seals the filter plate 5 with the inner wall of the sedimentation box 3, which is similar to the structure of the piston and the cylinder body of the hydraulic cylinder. The reinforcement frame 57 is used to improve the strength of the support plate 51 and prevent the support plate 51 from deforming after being stressed. The connecting seat 58 is used to connect with the pressing device 4. When the pressing device 4 is a hydraulic cylinder or a cylinder, the connecting seat 58 can be a cylinder or cylinder connecting hinge seat. The positioning groove 513 is an annular groove, so that the filter membrane 52 is opened and fixed on the support plate 51.

[0042] Preferably, the sedimentation box 3 adopts a circular box structure. When the sedimentation box 3 is a rectangular structure, the inner corners are rounded to improve the sealing effect.

[0043] Furthermore, the support plate 51 is provided with a groove 512 on the side where the filter membrane 52 is laid and at the end of the water-permeable hole 511. When the groove 512 is not provided, the filtration area of ​​the filter membrane 52 at the water-permeable hole 511 is equal to the end area of ​​the water-permeable hole 511, and water can only be filtered and drained through the area at the water-permeable hole 511, and the remaining area is attached to the support plate 51, and the filtration effect is not good. Therefore, after the groove 512 is provided on the side of the support plate 51 where the filter membrane 52 is laid, the effective filtration area of ​​the filter membrane 52 is increased, and the filtration effect is improved. Specifically, the area of ​​the groove 512 is much larger than the end area of ​​the water-permeable hole 511, and the area between adjacent grooves 512 on the support plate 51 can support the filter membrane 52.

[0044] The working principle or action process of the utility model is as follows:

[0045] After the incoming water is filtered by the primary filter 11, large particles of impurities are filtered out, and the water flows into the water storage tank 1 and then into the transfer box 6. The transfer box 6 is equipped with an exciter 7. The vibration generated by the exciter 7 can break the aggregation state of impurity particles suspended in the water and disperse them. After that, the water in the transfer box 6 is pumped by the water pump 21 and sent to the filter 8 for re-filtration. The water filtered by the filter 8 is sent to the sedimentation tank 3. During the process of collecting water in the sedimentation box 3, the second control valve 33 is closed. After the water in the sedimentation box 3 reaches the upper limit, the first control valve 22 is closed, the downward pressure device 4 is started, and the filter plate 5 is driven to move downward. The water in the sedimentation box 3 passes through the filter plate 5 and comes to the top of the filter plate 5. At this time, the water located on the upper side of the filter plate 5 is water with impurities removed, and the water located on the lower side of the filter plate 5 contains various impurities or organic matter. When the filter plate 5 moves downward to the lower limit of the downward pressure device 4 or the sedimentation box 3, the drainage pipe port 32 is located above the filter plate 5, and the second control valve 33 is opened to drain water outward, and the water with impurities removed is discharged through the drainage pipe port 32. After that, the second control valve 33 is closed, the filter plate 5 moves upward, and the first control valve 22 is opened to inject water into the sedimentation box 3 again. Among them, when the first control valve 22 is closed, the water pump 21 is also closed at the same time, and when the first control valve 22 is opened, the water pump 21 is also started at the same time.

Claims

1. A water treatment high-efficiency sedimentation tank structure, comprising a water storage tank (1), the water storage tank (1) being connected to a water inlet pipe (31) of a sedimentation tank (3) through a delivery pipe (2), and the sedimentation tank (3) is also provided with a drainage pipe (32), Features: The delivery pipe (2) or the water inlet pipe opening (31) is installed with a first control valve (22), the drainage pipe opening (32) is installed with a second control valve (33), a filter plate (5) is installed inside the sedimentation box (3) in a manner that it slides up and down and is sealed, a downward pressure device (4) is installed above the sedimentation box (3), the downward pressure device (4) is connected to the filter plate (5), and the downward pressure device (4) drives the filter plate (5) to slide up and down, and when the filter plate (5) moves downward to the lower limit position of the downward pressure device (4) or the sedimentation box (3), the drainage pipe opening (32) is located above the filter plate (5).

2. A water treatment high-efficiency sedimentation tank structure according to claim 1, Features: A primary filter screen (11) is installed in the water storage tank (1).

3. A water treatment high-efficiency sedimentation tank structure according to claim 1, Features: A transfer box (6) is provided on one side of the water storage tank (1); the water storage tank (1) and the transfer box (6) are connected via a pipeline; one end of the delivery pipeline (2) is connected to the transfer box (6) and the other end is connected to the sedimentation tank (3); the filter (8) is connected in series to the delivery pipeline (2); and a water pump (21) is installed on the delivery pipeline (2) at the upstream end of the filter (8).

4. A water treatment high-efficiency sedimentation tank structure according to claim 1, Features: A partition (61) is provided inside the water storage tank (1), a transfer box (6) is formed on the other side of the partition (61), a channel (62) is provided on the partition (61), one end of the delivery pipeline (2) is connected to the transfer box (6), and the other end is connected to the sedimentation tank (3), the filter (8) is connected in series to the delivery pipeline (2), and a water pump (21) is installed on the delivery pipeline (2) at the upstream end of the filter (8).

5. A water treatment high-efficiency sedimentation tank structure according to claim 3 or 4, Features: A vibration exciter (7) is installed in the transfer box (6).

6. A water treatment high-efficiency sedimentation tank structure according to claim 1, Features: A support seat (34) is installed on the upper side of the sedimentation box (3), and the downward pressing device (4) is installed on the support seat (34).

7. A water treatment high-efficiency sedimentation tank structure according to claim 1 or 6, Features: The pressing device (4) is a hydraulic cylinder or a pneumatic cylinder.

8. A water treatment high-efficiency sedimentation tank structure according to claim 1, Features: The filter plate (5) comprises a support plate (51) and a filter membrane (52). The support plate (51) is provided with a plurality of water permeable holes (511). A positioning groove (513) is further provided on one side of the support plate (51). The positioning groove (513) surrounds the water permeable holes (511). A pressing block (53) is installed in the positioning groove (513) via a screw (54). The filter membrane (52) is laid on the side of the support plate (51) provided with the positioning groove (513). The filter membrane (52) is pressed tightly in the positioning groove (513) by the pressing block (53) around the filter membrane (52). An annular groove (55) is provided on the side of the support plate (51) that contacts the inner wall of the sedimentation box (3). A sealing member (56) is installed in the annular groove (55). A reinforcing frame (57) is installed on the other side of the support plate (51). A connecting seat (58) is installed on the reinforcing frame (57). The connecting seat (58) is used for being installed and connected with the pressing device (4).

9. A water treatment high-efficiency sedimentation tank structure according to claim 8, Features: The support plate (51) is located on the side where the filter membrane (52) is laid, and is provided with a groove (512) at the end portion of the water permeable hole (511).

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