Oil collecting device

Abstract

The invention belongs to the technical field of greasy dirt waste water treatment, and relates to an oil collecting device which comprises a buoyancy cylinder which is a cavity cylinder body, and a water passing hole is formed in the side wall of the cavity cylinder body; the floater is arranged in the cavity of the buoyancy cylinder; the upper end of the first conveying pipeline is communicated with the cavity of the buoyancy cylinder, the lower end of the first conveying pipeline is connected to a second conveying pipeline, and the second conveying pipeline is used for being connected with a suction pump. According to the oil collecting device, the amount of the collected oil-water mixture is actively controlled through floating of the floater, the automation degree is high, and manual adjustment is not needed.

Description

Technical Field

[0001] The invention belongs to the technical field of oily wastewater treatment, and in particular relates to an oil collecting device. Background Art

[0002] In the metallurgical field, gear oil, hydraulic oil and lubricating oil are used in steel rolling and steelmaking processes. During the production process, some oil will enter the vortex well along with the turbid ring cooling water. As time goes by, the floating oil in the vortex well accumulates more and more, which leads to a large increase in the oil content in the turbid ring water, increasing the operating load and operating cost of the turbid ring water treatment system. In severe cases, the effluent quality of the turbid ring water treatment system cannot meet the production process requirements, resulting in a decline in the quality of the products produced, and even affecting production.

[0003] At present, floating oil can be collected by oil collecting heads, which are divided into fixed oil collecting heads and suspended oil collecting heads. Fixed oil collecting heads are fixed on the pool body and are below the water surface. The oil collecting efficiency is low. When the water level changes, the oil collecting head cannot adjust its position according to the water level change, resulting in low efficiency of collecting floating oil or even failure to collect floating oil. Suspended oil collecting heads mainly rely on the height of the water head above the oil collecting head to adjust the oil collecting efficiency and oil collecting range. The distance between the oil collecting head and the water surface is controlled by several floats around it. This process needs to be adjusted repeatedly, resulting in low oil collecting efficiency and a small oil collecting range. At the same time, the floats will also affect the flow direction of the floating oil, affecting the oil collecting efficiency, and the collected floating oil has a high water content. Summary of the invention

[0004] In order to solve the above problems, the present application provides an oil collection device, which is an adaptive oil collection device, which actively controls the amount of collected oil-water mixture through the floating of a float, has a high degree of automation, and improves the oil collection efficiency.

[0005] The present application provides an oil recovery device, comprising:

[0006] The buoyancy cylinder is a hollow cylinder, and the side wall of the hollow cylinder has a water hole;

[0007] A float is arranged in the cavity of the buoyancy cylinder;

[0008] The first delivery pipeline has an upper end connected to the cavity of the buoyancy cylinder and a lower end connected to the second delivery pipeline, and the second delivery pipeline is used to be connected to the suction pump.

[0009] Optionally, it also includes a guide cylinder fixed in the cavity of the buoyancy cylinder, the float includes a connecting sleeve and a tray fixedly connected to the outside of the connecting sleeve, the connecting sleeve is slidably mounted on the guide cylinder, and the upper end of the first conveying pipe is connected to the annular space between the guide cylinder and the buoyancy cylinder.

[0010] Optionally, a fixing piece is further included, and the top end of the guide cylinder is fixedly connected to the top end of the buoyancy cylinder via the fixing piece.

[0011] Optionally, the fixing member is a profile, which is arranged at the top of the guide cylinder and the buoyancy cylinder, and is fixedly connected to the guide cylinder and the buoyancy cylinder via fasteners.

[0012] Optionally, a tee is also included, wherein the first delivery pipe is a pair, and the lower end is connected to the second delivery pipe, which means that the lower ends of the pair of first delivery pipes are respectively connected to the two interfaces of the tee, and the other interface of the tee is connected to the second delivery pipe.

[0013] Optionally, the tee is a rotating tee, and its interface connected to a pair of first delivery pipes can rotate freely.

[0014] Optionally, the water hole is a square hole.

[0015] Optionally, the outer diameter of the float is equal to the inner diameter of the buoyancy cylinder.

[0016] Optionally, the connecting sleeve is integrally formed with the tray.

[0017] Optionally, the lower side of the tray gradually rises from the connecting sleeve toward the outside.

[0018] Compared with the prior art, this application has the following beneficial effects:

[0019] (1) The oil collecting device of the present application actively controls the amount of the collected oil-water mixture by the floating of the float, has a high degree of automation, and does not require manual adjustment.

[0020] (2) The oil-water mixture enters the annular space from the water hole and gathers there. You can wait until it has collected to a certain extent before pumping it out. Through this intermittent operation, more oil-water mixture can enter the annular space, making the collection range wider.

[0021] (3) The amount of oil-water mixture collected can be actively controlled by the floating of the float, which can improve the oil collection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the oil collection device according to an embodiment of the present invention.

[0023] Figure 2 It is a top view of the oil collecting device described in an embodiment of the present invention.

[0024] Figure 3 for Figure 2 BB section view. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be detachably connected or non-detachably connected; it can be directly connected or indirectly connected through an intermediate medium. Among them, "fixed connection" means that the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present application, such as "upper", "lower", "inside", "outside", etc., are only reference directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, 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 embodiments of the present application. Among them, the two components are obtained by an integrated structure through an integrated molding process, which means that in the process of forming one of the two components, the component is connected to the other component, and there is no need to connect the two components together by reprocessing (such as bonding, welding, snap connection, screw connection).

[0027] The oil collecting device of the present embodiment is an adaptive oil collecting device, which can automatically adjust the oil collecting amount according to the floating condition of the float, and includes a buoyancy cylinder 10, which is a hollow cylinder, capable of providing overall buoyancy for the oil collecting device, and the hollow cylinder is surrounded by water holes 101, through which the oil-water mixture can enter the annular space 303 between the guide cylinder and the buoyancy cylinder; the float 30 is a hollow floating block, which realizes the oil collecting level control; the guide cylinder 20 is used for guiding the float and the top connection; the fixing member 50 is used to fix the buoyancy cylinder 10 and the guide cylinder 20, so as to realize the fixing and lifting of the whole device; the first conveying pipeline 40 is a pipeline for conveying the oil-water mixture, so as to convey the oil-water mixture in the annular space between the guide cylinder and the buoyancy cylinder to the rotating tee 60; the rotating tee 60 is a connecting tee with freely rotatable ends, which is connected to the second conveying pipeline, so as to reduce the influence of the second conveying pipeline on the stability of the whole device.

[0028] The buoyancy cylinder 10 is in the shape of a hollow cylinder, and a plurality of water holes 101 are arranged on its side wall, and the water holes 101 penetrate the side wall of the buoyancy cylinder 10, so that the external oil-water mixture can enter the hollow cavity of the buoyancy cylinder 10 through the water holes 101. The buoyancy cylinder 10 can be a hollow cylinder, and if it is a hollow cylinder, a plurality of water holes 101 can be evenly distributed in the circumferential direction thereof. However, it can also be a hollow prism, and a water hole 101 can be arranged on each side of the prism.

[0029] The water hole 101 may be a square hole, but the present embodiment does not exclude the possibility that it may be a hole of other shapes, such as a circular hole. When the liquid level inside the buoyancy cylinder is lower than the liquid level outside, the oil-water mixture outside will enter the inside of the buoyancy cylinder through the water hole 101, and when the liquid level inside the buoyancy cylinder is equal to the liquid level outside, the oil-water mixture stops flowing into the inside of the buoyancy cylinder.

[0030] A float 30 is disposed in the buoyancy cylinder 10 , and the float 30 floats under the buoyancy of the oil-water mixture that enters the cavity through the water hole 101 .

[0031] like Figure 2 As shown, the float 30 includes a connecting sleeve 301 and a tray 302 fixedly connected to the outside of the connecting sleeve 301, and the connecting sleeve 301 and the tray 302 can be integrally formed. The connecting sleeve 301 is a hollow cylinder, and the tray 302 extends outward from the outer wall of the connecting sleeve 301 to a position roughly close to the inner wall of the buoyancy cylinder 10, that is, the outer diameter of the float 30 is equal to or substantially equal to the inner diameter of the buoyancy cylinder 10. The lower side of the tray 302 can extend from the connecting sleeve 301 to the outside in a gradually rising manner.

[0032] A coaxial guide cylinder 20 is provided in the cavity of the buoyancy cylinder 10, and the connecting sleeve 301 of the float 30 is sleeved on the guide cylinder 20, so that the float 30 can float up and down along the guide cylinder 20 under the buoyancy of the oil-water mixture. Specifically, when the oil-water mixture flows into the annular space between the guide cylinder and the buoyancy cylinder 10, as the amount of liquid increases, the buoyancy gradually increases, causing the float to float upward. When the liquid level of the oil-water mixture is at the same height as the liquid level outside the buoyancy cylinder, the oil-water mixture outside no longer enters the annular space, and the float stays at the liquid level. When some oil-water mixture is extracted from the second delivery pipeline, the amount of liquid in the annular space decreases, the buoyancy decreases, and the float floats downward.

[0033] The top of the guide cylinder 20 can be fixedly connected to the top of the buoyancy cylinder 10 through a fixing member 50. For example, a profile can be arranged on the top of the guide cylinder 20 and the buoyancy cylinder 30, and the profile is fixedly connected to the guide cylinder and the buoyancy cylinder 30 through fasteners. The fasteners can be conventional fasteners such as bolts, screws, and rivets.

[0034] The first delivery pipe 40 is fixedly connected to the lower end of the buoyancy cylinder 10, and the upper end of the first delivery pipe 40 is communicated with the annular space between the guide cylinder and the buoyancy cylinder, so that the oil-water mixture in the annular space can flow into the first delivery pipe 40. A pair of first delivery pipes 40 can be arranged at the lower end of the buoyancy cylinder 10, and the lower end of the first delivery pipe 40 is connected to the second delivery pipe, and the second delivery pipe can be connected to the suction pump, and the oil-water mixture in the annular space is sucked to the outside through the suction action of the suction pump.

[0035] In some embodiments, the lower ends of the pair of first delivery pipes 40 are connected to the second delivery pipe through a rotating tee, and the lower ends of the pair of first delivery pipes 40 are relatively bent. Specifically, Figure 2 As shown, the lower end of the first conveying pipeline 40 on the left is bent to the right, and the lower end of the first conveying pipeline 40 on the right is bent to the left, and the lower ends of a pair of first conveying pipelines 40 are connected to the freely selectable two ends of the rotating tee 60, and the other passage of the rotating tee 60 is connected to the second conveying pipeline. Since the two ends of the rotating tee can rotate freely, the influence of the vibration and movement of the second conveying pipeline on the stability of the oil collecting device can be reduced.

[0036] The working process of the oil recovery device is described below:

[0037] The oil collecting device is placed in the water of the vortex well. The entire oil collecting device floats on the water surface under the buoyancy of the buoyancy cylinder 10. The oil-water mixture enters the annular space between the guide cylinder and the buoyancy cylinder through the water hole 101. The float floats up under the buoyancy of the oil-water mixture. If no suction is performed, the float will continue to rise as the oil-water mixture increases.

[0038] When the oil-water mixture in the annular space is the same as the liquid level outside the buoyancy tube 10, the oil-water mixture no longer enters the annular space. The second delivery pipeline can start suction. As the oil-water mixture enters the second delivery pipeline from the first delivery pipeline 40, the oil-water mixture in the annular space decreases, and the float 30 descends under its own weight. When the float 30 descends to a level lower than the liquid level outside the outer tube 10, the oil-water mixture enters the annular space again through the water hole 101 on the buoyancy tube 10 to replenish the liquid, and the float 30 floats up again under the action of buoyancy.

[0039] With this oil collection device, when the buoyancy cylinder is placed on the liquid surface, the oil-water mixture enters the annular space between the guide cylinder and the buoyancy cylinder from the water hole. This process is a short-term enrichment process of the oil-water mixture. When the oil-water mixture in the annular space between the guide cylinder and the buoyancy cylinder reaches a certain amount, it can generate sufficient buoyancy for the float, causing the float to float up, thereby achieving the purpose of short-term enrichment. Then, the oil-water mixture can be sucked to the outside through the second delivery pipeline. When the amount of the oil-water mixture in the annular space is reduced to insufficient to float the float, the float sinks, and the oil-water mixture enters the annular space between the guide cylinder and the buoyancy cylinder from the water hole. This intermittent oil collection reduces the ineffective oil collection time and increases the oil content of the collected floating oil.

[0040] Moreover, a large water surface height difference can increase the oil collection efficiency, that is, the larger the height difference between the water surface outside the buoyancy tube 10 and the top of the float, the faster the oil-water mixture flows and the higher the collection efficiency.

[0041] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and deformations according to the present invention, but these corresponding changes and deformations shall fall within the protection scope of the claims of the present invention.

Claims

1. An oil collecting device, characterized in that: include: The buoyancy cylinder is a hollow cylinder, and the side wall of the hollow cylinder has a water hole; A float is arranged in the cavity of the buoyancy cylinder; The first delivery pipeline has an upper end connected to the cavity of the buoyancy cylinder and a lower end connected to the second delivery pipeline, and the second delivery pipeline is used to be connected to the suction pump.

2. The oil collecting device according to claim 1, characterized in that: It also includes a guide cylinder fixed in the cavity of the buoyancy cylinder. The float includes a connecting sleeve and a tray fixedly connected to the outside of the connecting sleeve. The connecting sleeve is slidably mounted on the guide cylinder. The upper end of the first conveying pipeline is connected to the annular space between the guide cylinder and the buoyancy cylinder.

3. The oil collecting device according to claim 2, characterized in that: It also includes a fixing piece, and the top end of the guide cylinder is fixedly connected to the top end of the buoyancy cylinder through the fixing piece.

4. The oil collecting device according to claim 3, characterized in that: The fixing member is a profile, which is arranged at the top of the guide cylinder and the buoyancy cylinder, and is fixedly connected to the guide cylinder and the buoyancy cylinder through a fastener.

5. The oil collecting device according to claim 1, characterized in that: It also includes a tee, wherein the first delivery pipeline is a pair, and the lower end of the first delivery pipeline is connected to the second delivery pipeline, which means that the lower ends of the pair of first delivery pipelines are respectively connected to the two interfaces of the tee, and the other interface of the tee is connected to the second delivery pipeline.

6. The oil collecting device according to claim 5, characterized in that: The tee is a rotating tee, and the interface between the tee and a pair of first delivery pipes can rotate freely.

7. The oil collecting device according to claim 1, characterized in that: The water through hole is a square hole.

8. The oil collecting device according to claim 2, characterized in that: The outer diameter of the float is equal to the inner diameter of the buoyancy cylinder.

9. The oil collecting device according to claim 2, characterized in that: The connecting sleeve is integrally formed with the tray.

10. The oil collecting device according to claim 2, characterized in that: The lower side of the tray gradually rises from the connecting sleeve toward the outside.

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