Settling and filtering device

Abstract

The invention relates to the technical field of environmental protection equipment, and discloses a settling and filtering device which comprises a tower body, a partition plate, a barrel body, a liquid inlet pipe and an overflow pipe, the tower body is provided with a wastewater cavity and an overflow cavity, the partition plate is connected into the wastewater cavity and divides the wastewater cavity into a settling cavity area and a floating oil temporary storage cavity area, and the overflow cavity is communicated with the upper part of the settling cavity area; the barrel is connected into the tower body, the upper end of the barrel is open and is communicated with the floating oil temporary storage cavity area, and the lower end of the barrel is open and is communicated with the settling cavity area; the liquid inlet pipe is communicated with an inner cavity of the barrel; in practical application, oily wastewater is input into the barrel from the liquid inlet pipe and enters the settling cavity area through the lower end of the barrel, and after the liquid level in the settling cavity area submerges the lower end of the barrel, light floating oil can be temporarily stored in the floating oil temporary storage cavity area along with rising of the liquid level; wastewater in the settling cavity area overflows into the overflow cavity from the upper part of the settling cavity area and is discharged through the overflow pipe, so that oil in the wastewater can be effectively filtered.

Description

Technical Field

[0001] The present invention belongs to the field of environmental protection equipment, and more specifically, relates to a sedimentation and filtration device. Background Art

[0002] Currently, after the pressure filtration process in the zirconium and hafnium extraction process, zirconium hydroxide / zirconium hydroxide or zirconium carbonate / hafnium carbonate will be mixed in the form of tiny flocs in the wastewater after pressure filtration. If this wastewater is used as process recycled water, after the centrifugal extraction process, it is inevitable that the wastewater will be mixed with oil. Due to the presence of oil, the impact of the wastewater as process recycled water on the quality of subsequent process production is relatively large. Summary of the Invention

[0003] The main object of the present invention is to provide a sedimentation and filtration device that can effectively filter the oil in the wastewater and reduce the impact of the wastewater as process recycled water on the quality of subsequent process production.

[0004] According to the first aspect of the present invention, there is provided a sedimentation and filtration device, including a tower body, a partition plate, a cylinder body, a liquid inlet pipe and an overflow pipe;

[0005] The tower body has a wastewater chamber and an overflow chamber. The partition plate is connected in the wastewater chamber, and the partition plate divides the wastewater chamber into a sedimentation chamber area and a floating oil temporary storage chamber area. The floating oil temporary storage chamber area is located above the sedimentation chamber area, and the overflow chamber is communicated with the upper part of the sedimentation chamber area;

[0006] The cylinder body is connected in the tower body. The cylinder body is conical, and the space of the inner cavity of the cylinder body gradually shrinks from top to bottom. The axis of the cylinder body extends in the vertical direction. The upper end of the cylinder body is open and communicated with the floating oil temporary storage chamber area, and the lower end of the cylinder body is open and communicated with the sedimentation chamber area;

[0007] The liquid inlet pipe penetrates and connects the tower body. The liquid inlet end of the liquid inlet pipe is located outside the tower body, and the liquid outlet end is communicated with the inner cavity of the cylinder body;

[0008] The overflow pipe is communicated with the overflow chamber.

[0009] In a specific embodiment of the present invention, the sedimentation and filtration device further includes a buffer member. The buffer member includes a buffer baffle and a mounting bracket. The mounting bracket is connected to the bottom surface of the sedimentation chamber area, and the buffer baffle is connected to the mounting bracket;

[0010] The lower end of the cylinder body extends to the lower part of the sedimentation chamber area, and the lower end of the cylinder body faces the buffer baffle.

[0011] In a specific embodiment of the present invention, the top surface of the buffer baffle is a first conical surface, and the first conical surface protrudes towards the cylinder body.

[0012] In a specific embodiment of the present invention, the overflow chamber is annular, the overflow chamber is arranged around the sedimentation chamber area, and the overflow chamber communicates with the sedimentation chamber area through an annular communication hole;

[0013] The sedimentation and filtration device further includes an annular overflow plate. Along the radial direction of the overflow chamber, the overflow plate is connected to the chamber wall surface of the overflow chamber close to the sedimentation chamber area, and the overflow plate is arranged around the sedimentation chamber area. The top of the overflow plate is serrated to form a plurality of overflow ports. The top of the overflow plate blocks the communication hole, and the overflow ports communicate the communication hole and the overflow chamber.

[0014] In a specific embodiment of the present invention, the sedimentation and filtration device further includes a drain pipe and an oil-water separator. The liquid inlet end of the drain pipe communicates with the upper part of the inner cavity of the cylinder body, the liquid outlet end is connected to the oil-water separator, and the liquid inlet end of the drain pipe is located above the liquid outlet end of the inlet pipe.

[0015] In a specific embodiment of the present invention, the oil-water separator includes a device main body, a separation cylinder, a filter layer and an oil drain pipe;

[0016] The device main body has a cavity;

[0017] The separation cylinder is arranged in the cavity, and the upper end of the separation cylinder communicates with the cavity;

[0018] The number of the filter layers is multiple. The multiple filter layers are arranged at intervals in the vertical direction in the separation cylinder, and the multiple filter layers divide the inner cavity of the separation cylinder into multiple filter cavities. The filter layer can filter the oil in the wastewater;

[0019] The number of the oil drain pipes is multiple. Each filter cavity is communicated with at least one of the oil drain pipes, and the oil drain pipes penetrate through the device main body and extend outside the device main body;

[0020] Wherein, along the vertical direction, the lowermost filter cavity among the multiple filter cavities communicates with the drain pipe.

[0021] In a specific embodiment of the present invention, the sedimentation and filtration device further includes a ventilation cap. The ventilation cap is connected to the top end of the tower body and communicates with the floating oil temporary storage cavity area.

[0022] In a specific embodiment of the present invention, the sedimentation and filtration device further includes a liquid level sensor. The liquid level sensor is connected to the tower body and extends into the floating oil temporary storage cavity area. The liquid level sensor is used to monitor the liquid level in the floating oil temporary storage cavity area.

[0023] In a specific embodiment of the present invention, the bottom surface of the sedimentation chamber area is a second conical surface, and the second conical surface protrudes away from the cylinder body.

[0024] A sediment output pipe is also connected to the bottom of the tower body, and the sediment output pipe is communicated with the sedimentation chamber area.

[0025] In a specific embodiment of the present invention, an observation window and a manhole are also connected to the lower part of the tower body, and the observation window and the manhole are arranged at intervals.

[0026] One of the technical solutions in the above technical solutions of the present invention has at least the following advantages or beneficial effects:

[0027] In the sedimentation and filtration device of the present invention, the partition plate divides the waste water chamber into a sedimentation chamber area and a floating oil temporary storage chamber area. In practical applications, the oily waste water is input into the cylinder body from the liquid inlet pipe and enters the sedimentation chamber area through the lower end of the cylinder body. When the liquid level in the sedimentation chamber area exceeds the lower end of the cylinder body, as the liquid level rises, the light floating oil will be temporarily stored in the floating oil temporary storage chamber area, and the floating oil will no longer enter the sedimentation chamber area. The waste water in the sedimentation chamber area will overflow from the upper part of the sedimentation chamber area into the overflow chamber and be discharged through the overflow pipe. At the same time, the tiny flocs in the waste water in the sedimentation chamber area will settle at the bottom of the sedimentation chamber area. Thus, the oil in the waste water can be effectively filtered, and the amount of tiny flocs contained in the waste water discharged from the overflow pipe is extremely small. Based on this, the influence of the waste water as process recycled water on the quality of subsequent process production can be reduced;

[0028] In addition, since the cylinder body is a cone with a gradually shrinking inner cavity space from top to bottom, the oil in the waste water in the middle and lower parts of the inner cavity of the cylinder body is easier to coalesce and float up, which is beneficial to the separation of the waste water and the oil. Description of the Drawings

[0029] The present invention will be further described below with reference to the drawings and embodiments;

[0030] Figure 1 is a perspective view of the sedimentation and filtration device according to the embodiment of the present invention;

[0031] Figure 2 is a sectional view of the tower body according to the embodiment of the present invention;

[0032] Figure 3 is an embodiment of the present invention Figure 2 an enlarged schematic view of A in;

[0033] Figure 4 is an embodiment of the present invention Figure 3 an enlarged schematic view of B in;

[0034] Figure 5 is a sectional view of the oil-water separator according to the embodiment of the present invention.

[0035] In the figure, 1 is the tower body; 101 is the wastewater chamber; 101A is the sedimentation chamber area; 101B is the floating oil temporary storage chamber area; 102 is the overflow chamber; 103 is the communication hole; 2 is the partition plate; 3 is the cylinder body; 4 is the liquid inlet pipe; 5 is the overflow pipe; 6 is the buffer member; 61 is the buffer baffle; 62 is the mounting bracket; 7 is the overflow plate; 701 is the overflow port; 8 is the drain pipe; 9 is the oil-water separator; 91 is the main body of the separator; 9101 is the cavity; 92 is the separation cylinder; 9201 is the filtration chamber; 93 is the filter layer; 94 is the oil drain pipe; 10 is the vent cap; 11 is the liquid level sensor; 12 is the sediment output pipe; 13 is the observation window; 14 is the manhole. Specific embodiments

[0036] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0037] Referring to Figures 1 to 5 As shown, a sedimentation and filtration device includes a tower body 1, a partition plate 2, a cylinder body 3, a liquid inlet pipe 4 and an overflow pipe 5; the tower body 1 has a wastewater chamber 101 and an overflow chamber 102, the partition plate 2 is connected inside the wastewater chamber 101, and the partition plate 2 divides the wastewater chamber 101 into a sedimentation chamber area 101A and a floating oil temporary storage chamber area 101B. The floating oil temporary storage chamber area 101B is located above the sedimentation chamber area 101A, and the overflow chamber 102 is communicated with the upper part of the sedimentation chamber area 101A; the cylinder body 3 is connected inside the tower body 1, the cylinder body 3 is conical, the space inside the cylinder body 3 gradually decreases from top to bottom, the axis of the cylinder body 3 extends in the vertical direction, the upper end of the cylinder body 3 is open and communicated with the floating oil temporary storage chamber area 101B, and the lower end of the cylinder body 3 is open and communicated with the sedimentation chamber area 101A; the liquid inlet pipe 4 penetrates and connects the tower body 1, the liquid inlet end of the liquid inlet pipe 4 is located outside the tower body 1, and the liquid outlet end is communicated with the inner cavity of the cylinder body 3; the overflow pipe 5 is communicated with the overflow chamber 102.

[0038] Specifically, for the sedimentation and filtration device of the present application, the partition plate 2 divides the wastewater chamber 101 to form a sedimentation chamber area 101A and a floating oil temporary storage chamber area 101B. In practical applications, the oily wastewater is input into the cylinder body 3 through the liquid inlet pipe 4 and enters the sedimentation chamber area 101A from the lower end of the cylinder body 3. When the liquid level in the sedimentation chamber area 101A exceeds the lower end of the cylinder body ३, as the liquid level rises, the light floating oil will be temporarily stored in the floating oil temporary storage chamber area 101B and will no longer enter the sedimentation chamber area 101A. The wastewater in the sedimentation chamber area 101A will overflow from the upper part of the sedimentation chamber area 101A into the overflow chamber 102 and be discharged through the overflow pipe 5. At the same time, the tiny flocs in the wastewater in the sedimentation chamber area 101A will settle at the bottom of the sedimentation chamber area 101A. Thus, the oil in the wastewater can be effectively filtered, and the amount of tiny flocs contained in the wastewater discharged from the overflow pipe 5 is extremely small. Based on this, the impact of the wastewater as process recycled water on the quality of subsequent process production can be reduced.

[0039] In addition, since the cylinder body 3 is a cone with an inner cavity space gradually narrowing from top to bottom, the oil in the wastewater in the middle and lower parts of the inner cavity of the cylinder body 3 is more likely to coalesce and float upward, which is beneficial to the separation of wastewater and oil.

[0040] Moreover, a plurality of connecting rods are also connected inside the tower body 1. The connecting rods connect the outer wall surface of the cylinder body 3 and the wall surface of the wastewater chamber of the tower body 1 to ensure that the cylinder body 3 is stably connected inside the tower body 1.

[0041] Exemplarily, if the wastewater input into the sedimentation and filtration device through the liquid inlet pipe 4 is the wastewater after the pressure filtration process in the zirconium-hafnium extraction process, then the tiny flocs in the wastewater are zirconium hydroxide / zirconium hydroxide or zirconium carbonate / hafnium carbonate. It should be noted that the sedimentation and filtration device of the present application can also treat the oily wastewater in other processes.

[0042] Furthermore, the sedimentation and filtration device further includes a buffer member 6. The buffer member 6 includes a buffer baffle 61 and a mounting bracket 62. The mounting bracket 62 is connected to the bottom surface of the sedimentation chamber area 101A, and the buffer baffle 61 is connected to the mounting bracket 62. The lower end of the cylinder body 3 extends to the lower part of the sedimentation chamber area 101A, and the lower end of the cylinder body 3 faces the buffer baffle 61. Specifically, the buffer baffle 61 plays a role in blocking the flow, which can prevent the wastewater output from the lower end of the cylinder body 3 from directly impacting the sediment at the bottom of the sedimentation chamber area 101A, reduce the disturbance of the wastewater to the sediment, and improve the cleanliness of the overflowing wastewater.

[0043] Preferably, the top surface of the buffer baffle 61 is a first conical surface, which protrudes towards the cylinder body 3. Specifically, the first conical surface has a certain inclination angle. When the wastewater flows near the first conical surface, the first conical surface can guide the water flow, enabling the water flow to flow smoothly along the contour of the first conical surface. The water flow can gradually change its direction and bypass the first conical surface relatively smoothly, thereby reducing the turbulent flow phenomenon caused by suddenly changing the flow direction, further reducing the impact force of the wastewater on the sediment, and thus being more conducive to improving the cleanliness of the overflowing wastewater.

[0044] In this embodiment, the overflow chamber 102 is annular and is arranged around the sedimentation chamber area 101A. The overflow chamber 102 is communicated with the sedimentation chamber area 101A through an annular communication hole 103. The sedimentation and filtration device further includes an annular overflow plate 7. Along the radial direction of the overflow chamber 102, the overflow plate 7 is connected to the chamber wall surface of the overflow chamber 102 close to the sedimentation chamber area 101A, and the overflow plate 7 is arranged around the sedimentation chamber area 101A. The top of the overflow plate 7 is serrated to form a plurality of overflow ports 701. The top of the overflow plate 7 blocks the communication hole 103, and the overflow ports 701 communicate the communication hole 103 and the overflow chamber 102. Specifically, the wastewater overflows into the overflow chamber 102 through the overflow ports 701. Since the overflow ports 701 are formed by a serrated structure, the wastewater can overflow from the circumferential direction of the sedimentation chamber area 101A, and its flow-through capacity is strong, which can ensure the smooth output of the wastewater after filtration and sedimentation.

[0045] In this embodiment, the sedimentation and filtration device further includes a drain pipe 8 and an oil-water separator 9. The liquid inlet end of the drain pipe 8 is communicated with the upper part of the inner cavity of the cylinder body 3, and the liquid outlet end is connected to the oil-water separator 9. Moreover, the liquid inlet end of the drain pipe 8 is located above the liquid outlet end of the inlet pipe 4. In practical applications, when the oil-containing wastewater in the oil storage chamber area 101B reaches a certain amount, this part of the oil-containing wastewater can be discharged into the oil-water separator 9 through the drain pipe 8, and the oil in this part of the oil-containing wastewater can be separated by the oil-water separator 9, avoiding excessive oil accumulation in the oil storage chamber area 101B. In addition, the wastewater output by the oil-water separator 9 can also be recycled.

[0046] In this embodiment, the oil-water separator 9 includes a separator main body 91, a separation cylinder 92, a filter layer 93, and an oil discharge pipe 94; the separator main body 91 has a cavity 9101; the separation cylinder 92 is disposed in the cavity 9101, and the upper end of the separation cylinder 92 communicates with the cavity 9101; the number of filter layers 93 is multiple, and the multiple filter layers 93 are arranged at intervals in the vertical direction in the separation cylinder 92, and the multiple filter layers 93 divide the inner cavity of the separation cylinder 92 into multiple filter cavities 9201, and the filter layer 93 can filter the oil in the wastewater; the number of oil discharge pipes 94 is multiple, and at least one oil discharge pipe 94 communicates with each filter cavity 9201, and the oil discharge pipe 94 penetrates through the separator main body 91 and extends outside the separator main body 91; wherein, in the vertical direction, the lowermost filter cavity 9201 among the multiple filter cavities 9201 communicates with the liquid discharge pipe 8. Specifically, the arrangement of the multiple filter layers 93 enables the oily wastewater to be filtered multiple times, so that the output wastewater contains very little or no oil, and the filtering effect is good. After passing through the multiple filter layers 93, the oil remains in the filter cavity 9201, while the wastewater enters the cavity 9101 from the upper end of the separation cylinder 92. Among them, the separator main body 91 has a wastewater output pipe communicating with the cavity 9101, and the wastewater in the cavity 9101 is output through the wastewater output pipe; and the oil remaining in the filter cavity 9201 can be discharged through the oil discharge pipe 94, avoiding excessive accumulation of oil in the filter cavity 9201 and ensuring the normal operation of the oil-water separator 9.

[0047] It should be noted that valves can be connected to the above-mentioned liquid discharge pipe 8, oil discharge pipe 94, and wastewater output pipe to ensure the normal progress of the sedimentation and filtration work; and the above-mentioned filter layer 93 is a filter material with a certain porosity (such as quartz sand, activated carbon, fiber, etc.). When the mixture of oil and wastewater passes through the filter layer 93, the oil is intercepted by the filter material, while the wastewater flows out through the filter layer 93.

[0048] In this embodiment, the sedimentation and filtration device further includes a ventilation cap 10. The ventilation cap 10 is connected to the top of the tower body 1 and communicates with the floating oil temporary storage cavity area 101B. Based on this, the wastewater cavity 101 of the tower body 1 communicates with the atmosphere, and the air pressures of the two are balanced, ensuring the smooth progress of the sedimentation and filtration work.

[0049] In this embodiment, the sedimentation and filtration device further includes a liquid level sensor 11. The liquid level sensor 11 is connected to the tower body 1 and extends into the floating oil temporary storage cavity area 101B. The liquid level sensor 11 is used to monitor the liquid level in the floating oil temporary storage cavity area 101B. Thus, when the liquid level sensor 11 monitors that the liquid level reaches the preset position, the oily wastewater in the floating oil temporary storage cavity area 101B is output through the liquid discharge pipe 8, avoiding the overflow of the oily wastewater from the ventilation cap 10 and ensuring the normal operation of the sedimentation and filtration device.

[0050] Furthermore, the bottom surface of the sedimentation chamber area 101A is a second conical surface, and the second conical surface protrudes away from the cylinder body 3; a sediment output pipe 12 is further connected to the bottom of the tower body 1, and the sediment output pipe 12 communicates with the sedimentation chamber area 101A. In practical applications, the sediment in the sedimentation chamber area 101A can be regularly discharged through the sediment output pipe 12, which is beneficial to the recovery and treatment of the sediment and ensures the normal operation of the sedimentation and filtration device; and the bottom surface of the sedimentation chamber area 101A is a second conical surface, and its advantage is that it is beneficial to the precipitation and discharge of the sediment.

[0051] In this embodiment, an observation window 13 and a manhole 14 are further connected to the lower part of the tower body 1, and the observation window 13 and the manhole 14 are arranged at intervals. Specifically, the deposition amount of the sediment can be observed through the observation window 13, and the staff can judge the discharge timing of the sediment through the observation window 13. The structure is simple and the operation is convenient; in addition, the setting of the manhole 14 facilitates the staff to carry out maintenance work on the tower body 1.

[0052] It should be noted that a valve is also provided on the sediment discharge pipe, and the valve is opened when the sediment needs to be discharged. The structure is simple and is beneficial to the precipitation and discharge of the sediment.

[0053] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A sedimentation and filtration device, characterized in that, It includes a tower body (1), a partition plate (2), a cylinder body (3), a liquid inlet pipe (4) and an overflow pipe (5); The tower body (1) has a wastewater chamber (101) and an overflow chamber (102). The partition plate (2) is connected inside the wastewater chamber (101), and the partition plate (2) divides the wastewater chamber (101) into a sedimentation chamber area (101A) and a floating oil temporary storage chamber area (101B). The floating oil temporary storage chamber area (101B) is located above the sedimentation chamber area (101A), and the overflow chamber (102) is communicated with the upper part of the sedimentation chamber area (101A); The cylinder body (3) is connected inside the tower body (1). The cylinder body (3) is conical, the space inside the cylinder body (3) gradually shrinks from top to bottom, the axis of the cylinder body (3) extends in the vertical direction, the upper end of the cylinder body (3) is open and communicated with the floating oil temporary storage chamber area (101B), and the lower end of the cylinder body (3) is open and communicated with the sedimentation chamber area (101A); The liquid inlet pipe (4) penetrates and connects the tower body (1). The liquid inlet end of the liquid inlet pipe (4) is located outside the tower body (1), and the liquid outlet end is communicated with the inner cavity of the cylinder body (3); The overflow pipe (5) is communicated with the overflow chamber (102).

2. The sedimentation and filtration device according to claim 1, characterized in that The sedimentation and filtration device further includes a buffer member (6). The buffer member (6) includes a buffer baffle (61) and a mounting bracket (62). The mounting bracket (62) is connected to the bottom surface of the sedimentation chamber area (101A), and the buffer baffle (61) is connected to the mounting bracket (62); The lower end of the cylinder body (3) extends to the lower part of the sedimentation chamber area (101A), and the lower end of the cylinder body (3) faces the buffer baffle (61).

3. The sedimentation and filtration device according to claim 2, characterized in that, The top surface of the buffer baffle (61) is a first conical surface, and the first conical surface protrudes towards the cylinder body (3).

4. The sedimentation and filtration device according to claim 1, characterized in that The overflow chamber (102) is annular. The overflow chamber (102) is arranged around the sedimentation chamber area (101A). The overflow chamber (102) is communicated with the sedimentation chamber area (101A) through an annular communication hole (103); The sedimentation and filtration device further includes an annular overflow plate (7). Along the radial direction of the overflow chamber (102), the overflow plate (7) is connected to the chamber wall surface of the overflow chamber (102) close to the sedimentation chamber area (101A), and the overflow plate (7) is arranged around the sedimentation chamber area (101A). The top of the overflow plate (7) is serrated to form a plurality of overflow ports (701). The top of the overflow plate (7) blocks the communication hole (103), and the overflow ports (701) communicate the communication hole (103) and the overflow chamber (102).

5. The sedimentation and filtration device according to claim 1, characterized in that, The sedimentation and filtration device further includes a drain pipe (8) and an oil-water separator (9). The liquid inlet end of the drain pipe (8) is communicated with the upper part of the inner cavity of the cylinder body (3), and the liquid outlet end is connected to the oil-water separator (9). The liquid inlet end of the drain pipe (8) is located above the liquid outlet end of the liquid inlet pipe (4).

6. The sedimentation and filtration device according to claim 5, characterized in that, The oil-water separator (9) includes a device main body (91), a separation cylinder (92), a filter layer (93), and an oil discharge pipe (94); The device main body (91) has a cavity (9101); The separation cylinder (92) is arranged in the cavity (9101), and the upper end of the separation cylinder (92) communicates with the cavity (9101); The number of the filter layers (93) is multiple. The multiple filter layers (93) are arranged at intervals in the vertical direction in the separation cylinder (92), and the multiple filter layers (93) divide the inner cavity of the separation cylinder (92) into multiple filter cavities (9201). The filter layer (93) can filter the oil in the wastewater; The number of the oil discharge pipes (94) is multiple. At least one oil discharge pipe (94) is communicated with each filter cavity (9201). The oil discharge pipe (94) penetrates through the device main body (91) and extends outside the device main body (91); Wherein, in the vertical direction, the lowermost filter cavity (9201) among the multiple filter cavities (9201) communicates with the liquid discharge pipe (8).

7. The sedimentation and filtration device according to claim 6, characterized in that, The sedimentation and filtration device further includes a ventilation cap (10). The ventilation cap (10) is connected to the top end of the tower body (1), and the ventilation cap (10) communicates with the floating oil temporary storage cavity area (101B).

8. The sedimentation and filtration device according to claim 7, characterized in that, The sedimentation and filtration device further includes a liquid level sensor (11). The liquid level sensor (11) is connected to the tower body (1), and the liquid level sensor (11) extends into the floating oil temporary storage cavity area (101B). The liquid level sensor (11) is used to monitor the liquid level in the floating oil temporary storage cavity area (101B).

9. The sedimentation and filtration device according to claim 1, characterized in that, The bottom surface of the sedimentation cavity area (101A) is a second conical surface, and the second conical surface protrudes away from the cylinder body (3); The bottom of the tower body (1) is further connected with a sediment output pipe (12). The sediment output pipe (12) communicates with the sedimentation cavity area (101A).

10. The sedimentation and filtration device according to claim 9, wherein, An observation window (13) and a manhole (14) are further connected to the lower part of the tower body (1). The observation window (13) and the manhole (14) are arranged at intervals.

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