Oil discharge device of clarifier

Abstract

The utility model relates to oil discharge of a clarifier, in particular to an oil discharge device of the clarifier. The waste water utilization rate is increased, the working intensity of workers is remarkably reduced, and the working environment safety of the workers is improved. The clarifier comprises a clarifier body and an oil discharger device. The clarifier body comprises a clarifier shell and a water storage tank located in the clarifier shell. The oil discharger device comprises an oil discharger shell with an open bottom, the upper part of the oil discharger shell is exposed out of the top of the clarifier, and the lower part of the oil discharger shell is inserted into a certain depth below the liquid level of the water storage tank. The utility model relates to oil discharge of a clarifier, in particular to an oil discharge device of the clarifier. The waste water utilization rate is increased, the working intensity of workers is remarkably reduced, and the working environment safety of the workers is improved. The clarifier comprises a clarifier body and an oil discharger device. The clarifier body comprises a clarifier shell and a water storage tank located in the clarifier shell. The oil discharger device comprises an oil discharger shell with an open bottom, the upper part of the oil discharger shell is exposed out of the top of the clarifier, and the lower part of the oil discharger shell is inserted into a certain depth below the liquid level of the water storage tank.

Description

Technical Field

[0001] The utility model relates to clarifier oil drainage, in particular to a clarifier oil drainage device. Background Art

[0002] To improve wastewater treatment efficiency and employee working conditions in the steel mill's power and environmental protection area, a clarifier is used for secondary treatment of oily wastewater generated during production, enabling wastewater recycling. The clarifier improves wastewater clarification through the collision, adsorption, and bonding of the suspended sludge layer with impurity particles in the water, achieving purification and reuse.

[0003] Currently, the clarifiers in the power and environmental protection operation area produce a large amount of oily sludge every day during production. This sludge needs to be collected and transported manually. If the sludge is not treated in a timely manner, the water in the clarifiers must be drained for cleaning. This not only consumes a large amount of water resources but also increases the labor intensity of workers. Therefore, it is necessary to design a rapid sludge discharge system at the top of the clarifier to quickly discharge the sludge. Summary of the Invention

[0004] This utility model addresses the shortcomings of existing technologies and provides a clarifier oil drain device. This device not only improves wastewater utilization, but also significantly reduces employee workload and improves workplace safety. This improvement is of great significance for promoting the effective management and recycling of wastewater in environmental protection work areas.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solution, including a clarifier and an oil drain device, the clarifier including a clarifier shell and a water storage tank located inside the clarifier shell; the oil drain device includes an oil drain shell with an open bottom, the upper part of the oil drain shell is exposed outside the top of the clarifier, and the lower part of the oil drain shell is inserted into the water storage tank to a certain depth below the liquid level.

[0006] A cover plate is installed on the top of the oil drainer shell, and an upper water pipe is provided on the cover plate, and the upper water pipe is connected to the inner cavity of the oil drainer; a downpipe bell mouth is provided in the oil drainer shell, the bottom of the downpipe bell mouth is connected to and communicated with the oil drain pipe, and the upper end of the downpipe bell mouth is lower than the liquid level of the water storage tank; and the downpipe bell mouth is connected to the cover plate through a lifting device.

[0007] Furthermore, the lifting device includes a lifting plate connected to the bell mouth of the sewer pipe, and the lifting plate is movably connected to the cover plate through two adjusting screws arranged in parallel; the bottom of the adjusting screw is fixedly connected to the lifting plate, and after the top of the adjusting screw passes through the cover plate, the protruding end is locked with an adjusting nut, so that the adjusting screw is locked and hung upside down on the cover plate.

[0008] Furthermore, the top of the clarifier shell is the clarifier upper support plate, a hole is provided in the middle of the clarifier upper support plate, and the outer wall of the oil drainer shell is fixedly connected to the hole to support the oil draining device body.

[0009] Furthermore, the clarifier upper support plate is installed at the upper end of the clarifier, and both ends of the clarifier upper support plate are fixedly connected to the clarifier shell.

[0010] Furthermore, the oil drain pipe includes a horizontal portion and a vertical portion vertically connected to the horizontal portion, wherein the horizontal portion is connected to and communicates with the bell mouth of the sewer pipe, and the vertical portion passes through the side of the clarifier and is connected to an oil drain vertical pipe, and the lower end of the oil drain vertical pipe is connected to and communicates with the sewage well.

[0011] Furthermore, two light holes are provided on the cover plate for adjusting the passage of the screw.

[0012] Furthermore, a through hole is provided in the middle of the lifting plate for passing the bell mouth of the sewer pipe through and fixedly connected thereto.

[0013] Furthermore, the bell mouth of the sewer pipe adopts a bell mouth structure so that oil and dirt can enter the pipe smoothly.

[0014] Compared with the prior art, the utility model has beneficial effects.

[0015] This new device features an oil drain installed above the water storage tank within the clarifier. This drain not only connects to the water supply pipe but also incorporates a bell-shaped drain pipe, which facilitates the rapid entry of oil into the pipe. More importantly, the height of the drain pipe's entrance can be adjusted according to the sewage level, effectively controlling the amount of oil discharged. This new device boasts a scientific and rational design, a stable and reliable structure, and is easy to operate and maintain, significantly improving work efficiency and user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The scope of protection of the present invention is not limited to the following description.

[0017] Figure 1 This is a front view of a clarifier oil discharge device according to an embodiment.

[0018] Figure 2 This is a half-section view of a clarifier oil discharge device according to an embodiment of the present invention. Figure 1 .

[0019] Figure 3 This is a half-section view of a clarifier oil discharge device according to an embodiment of the present invention. Figure 2 .

[0020] Figure 4It is a partial three-dimensional view of a clarifier oil discharge device in an embodiment.

[0021] In the figure, 1 is a clarifier; 2 is an oil discharge device;

[0022] 101. Clarifier housing; 102. Water storage tank; 103. Clarifier upper support plate; 104. Sewage well;

[0023] 201. Water supply pipe; 202. Cover plate; 203. Oil drainer housing; 204. Adjusting nut; 205. Adjusting screw; 206. Lifting plate; 207. Downpipe bell mouth; 208. Oil drain pipe; 209. Oil drain vertical pipe; 20801. Horizontal part of the oil drain pipe; 20802. Vertical part of the oil drain pipe. DETAILED DESCRIPTION

[0024] In order to better understand the technical solution of the present invention, a specific implementation plan is provided as follows; and the following solution is only for illustration.

[0025] like Figure 1-4 As shown, the clarifier oil drain device of the present invention includes a clarifier 1 and an oil drain device 2. The clarifier 1 includes a clarifier shell 101 and a water storage tank 102 located in the clarifier shell 101; the oil drain device 2 includes an oil drain shell 203 with an open bottom, the upper portion of the oil drain shell 203 is exposed outside the top of the clarifier 1, and the lower portion of the oil drain shell 203 is inserted into the water storage tank 102 to a certain depth below the liquid level.

[0026] A cover plate 202 is installed on the top of the oil drainer housing 203, and an upper water pipe is provided on the cover plate 202, and the upper water pipe is connected to the inner cavity of the oil drain device 2; a downpipe bell mouth 207 is provided in the oil drainer housing 203, and the bottom of the downpipe bell mouth 207 is connected to and communicates with the oil drain pipe 208, and the upper end of the downpipe bell mouth 207 is lower than the liquid level of the water storage tank 102; and the downpipe bell mouth 207 is connected to the cover plate 202 through a lifting device.

[0027] Preferably, the lifting device includes a lifting plate 206 connected to the downpipe bellmouth 207. Lifting plate 206 is movably connected to cover plate 202 via two juxtaposed adjusting screws 205. Cover plate 202 is provided with two apertures for the adjustment screws 205 to pass through. The bottom of the adjusting screws 205 is fixedly connected to lifting plate 206. After the top of the adjusting screws 205 passes through cover plate 202, the protruding end is locked with an adjusting nut 204, locking the adjusting screw 205 in place and hanging upside down on cover plate 202. Specifically, when oil impurities accumulate, they and some water enter the oil drain pipe 208 through downpipe bellmouth 207 and ultimately flow into the sewage well. A through hole is provided in the center of lifting plate 206 for the downpipe bellmouth 207 to pass through and securely connect to it. Downpipe bellmouth 207 has a bell-shaped structure that allows oil to enter the pipeline smoothly. The height difference between the bell mouth 207 and the liquid level of the water storage tank 102 can be adjusted by the height adjustment mechanism (i.e., the lifting device) of the downpipe bell mouth 207, thereby controlling the oil discharge flow rate.

[0028] The improved clarifier system of this utility model features an efficient oil drain device installed above the water storage tank within the clarifier. This drain device not only connects to the clarifier's water supply pipe, ensuring the system's integrity and coordination, but also features a specially designed oil drain pipe with a bell-shaped structure. This unique bell-shaped design significantly increases the speed and efficiency with which oil enters the drain pipe, ensuring effective oil-water separation. Furthermore, the drain pipe's inlet is equipped with an adjustable height mechanism (i.e., a lifting mechanism) that allows for flexible adjustment of its position based on the actual height of the liquid level in the water storage tank. This innovative design allows for precise control of the oil discharge volume based on actual needs, optimizing the operational process while also improving the operating efficiency and environmental performance of the entire clarifier system.

[0029] Preferably, the top of the clarifier housing 101 is a clarifier upper support plate 103. A hole is provided in the center of the clarifier upper support plate 103, into which the outer wall of the oil drain housing 203 is fixedly connected, thereby supporting the main body of the oil drain device 2. The clarifier upper support plate 103 is installed at the upper end of the clarifier 1, and both ends of the clarifier upper support plate 103 are fixedly connected to the clarifier housing 101.

[0030] Preferably, the oil drain pipe 208 includes a horizontal portion 20801 and a vertical portion 20802 vertically connected to the horizontal portion 20801, wherein the horizontal portion 20801 is connected to and communicates with the downpipe bell mouth 207, and the vertical portion 20802 passes through the side of the clarifier 1 and is connected to an oil drain vertical pipe 209, and the lower end of the oil drain vertical pipe 209 is connected to and communicates with the sewage well.

[0031] Working process:

[0032] 1. The oily wastewater generated during steel smelting flows from the upper water pipe 201 into the oil discharge device provided in the water storage tank 102 of the clarifier.

[0033] 2. When wastewater reaches the oil drain unit, oil impurities, which have a lower density than water, immediately float into the drain housing 203. Because drain housing 203 is mounted on the water tank 102, partially above and partially below the liquid level, the oil impurities are trapped within it. Water from the water supply pipe 201 flows through the bottom of the oil drain unit and connects to the water in the water tank. When the water in the water tank 102 is full, the water overflows through the open top edge of the tank into other locations within the clarifier.

[0034] 3. The oil drainage device is equipped with a downpipe bell mouth 207 and an oil drainage pipe 208 connected thereto. The upper end of the bell mouth 207 is lower than the liquid level. As oil impurities accumulate, they and some water flow through the bell mouth 207 into the oil drainage pipe 208 and then into the drainage well through the oil drainage riser 209, thus achieving separation and drainage of oil and water.

[0035] 4. The sewer bell mouth 207 is provided with a height adjustment mechanism, which can realize the adjustment of the height difference between the bell mouth and the liquid level. The height difference between the two can be adjusted in real time, and the size of the oil discharge flow of the sewer pipe can be controlled; when the upper edge of the sewer bell mouth 207 is higher than the liquid level, the function of stopping oil discharge can also be realized.

[0036] 5. The purpose of designing the bell mouth is to facilitate the smooth entry of oil into the sewer pipe.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. Therefore, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope defined by the claims of the present invention.

Claims

1. A clarifier oil discharge device, comprising a clarifier (1) and an oil discharge device (2), wherein the clarifier (1) comprises a clarifier housing (101) and a water storage tank (102) located within the clarifier housing (101); characterized in that: The oil drain device (2) includes an oil drain housing (203) with an open bottom, the upper portion of the oil drain housing (203) is exposed outside the top of the clarifier (1), and the lower portion of the oil drain housing (203) is inserted to a certain depth below the liquid level of the water storage tank (102); A cover plate (202) is installed on the top of the oil drainer housing (203), and an upper water pipe is provided on the cover plate (202), and the upper water pipe is communicated with the inner cavity of the oil drainer (2); a lower water pipe bell mouth (207) is provided in the oil drainer housing (203), and the bottom of the lower water pipe bell mouth (207) is connected to and communicated with the oil drain pipe (208), and the upper end of the lower water pipe bell mouth (207) is lower than the liquid level of the water storage tank (102); and the lower water pipe bell mouth (207) is connected to the cover plate (202) through a lifting device.

2. The clarifier oil discharge device according to claim 1, characterized in that: The lifting device comprises a lifting plate (206) connected to the bell mouth (207) of the sewer pipe, and the lifting plate (206) is movably connected to the cover plate (202) via two adjusting screws (205) arranged in parallel; the bottom of the adjusting screw (205) is fixedly connected to the lifting plate (206), and after the top of the adjusting screw (205) passes through the cover plate (202), the protruding end is locked with an adjusting nut (204), so that the adjusting screw (205) is locked and hung upside down on the cover plate (202).

3. The clarifier oil discharge device according to claim 1, characterized in that: The top of the clarifier shell (101) is a clarifier upper support plate (103), a hole is provided in the middle of the clarifier upper support plate (103), and the outer wall of the oil drainer shell (203) is fixedly connected to the hole to support the oil draining device (2) body.

4. The clarifier oil discharge device according to claim 3, characterized in that: The clarifier upper support plate (103) is installed at the upper end of the clarifier (1), and both ends of the clarifier upper support plate (103) are fixedly connected to the clarifier housing (101).

5. The clarifier oil discharge device according to claim 1, characterized in that: The oil drain pipe (208) includes a horizontal portion (20801) and a vertical portion (20802) vertically connected to the horizontal portion (20801), wherein the horizontal portion (20801) is connected to and communicates with the downpipe bell mouth (207), and the vertical portion (20802) passes through the side of the clarifier (1) and is connected to an oil drain vertical pipe (209), and the lower end of the oil drain vertical pipe (209) is connected to and communicates with the sewage well.

6. The clarifier oil discharge device according to claim 2, characterized in that: The cover plate (202) is provided with two light holes for adjusting the passage of the screw rod (205).

7. The clarifier oil discharge device according to claim 2, characterized in that: A through hole is provided in the middle of the lifting plate (206) for passing the downpipe bell mouth (207) through and fixedly connecting the bell mouth (207) thereto.

8. The clarifier oil discharge device according to claim 1, characterized in that: The downpipe bell mouth (207) adopts a bell mouth structure so that oil and dirt can enter smoothly.

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