Floating oil collection equipment and floating oil treatment method

Abstract

The invention relates to the field of sewage treatment equipment, in particular to floating oil collection equipment and a floating oil treatment method.The floating oil collection equipment comprises a treatment pond (1), a concentration module and a collection module, and the concentration module and the collection module are fixed to the top of the treatment pond and partially extend into the treatment pond. The collecting module comprises a containing bin (7), and an opening and a sealing cover (8) used for covering the opening are arranged at the top of the containing bin (7). At least one first telescopic rod (12) of which one end is fixed inside the accommodating bin and the other end is fixedly connected to the sealing cover is arranged in the accommodating bin, and the first telescopic rod drives the sealing cover to open and close the accommodating bin through stretching and retracting. During collection, the concentration module concentrates the floating oil to a preset area, the height of the bottom face of a floating oil layer is adjusted to be flush with the height of an opening in a containing bin in the preset area, the sealing cover is opened through the first telescopic rod, and the floating oil enters the containing bin and is collected. By controlling the movement speed of the first telescopic rod, the floating oil cannot be stirred, so that the floating oil is prevented from being mixed with the sewage and emulsified, and the accommodating bin can completely collect the floating oil in the sewage.

Description

Technical Field

[0001] The present invention relates to the field of sewage treatment equipment, in particular to a floating oil collection device and also to a floating oil treatment method using the floating oil collection device. Background Art

[0002] Sewage is a waste that is often generated in industrial production. If it is discharged directly without treatment, it will cause serious environmental pollution. Organic pollutants and some pollutants soluble in oily substances are common pollutants in sewage. In the process of sewage treatment, it is necessary to separate the sewage from them first and then treat them separately. After the sewage containing the above oily pollutants is left to stand, the oily pollutants often float on the water surface in the form of floating oil. Therefore, when treating sewage, most of the oily pollutants are usually separated from the sewage by collecting the floating oil, thereby removing the oily pollutants.

[0003] Chinese utility model patent CN215626935U discloses a coal chemical wastewater floating oil collection device, which includes a main body, a first carrier frame and a second carrier frame connected to the top of the main body, a driving motor is fixedly installed on one side of the first carrier frame, and the driving motor drives the carrier plate to drive the collection tank and the inclined plate connected thereto to move, so that the top of the inclined plate is submerged below the oil surface, thereby entering the collection tank to collect the floating oil. Although the coal chemical wastewater floating oil collection device can treat sewage, the collection tank and the inclined plate itself have a certain volume, and need to be submerged in water during collection, which will cause changes in the liquid level and generate fluctuations, thereby causing water and floating oil to enter the collection tank together, affecting the subsequent separate treatment of the floating oil.

[0004] Therefore, there is a need for an oil floating collection device that can collect the oil floating on the sewage without stirring the liquid surface to cause the oil floating to mix with the sewage. Summary of the invention

[0005] The existing coal chemical wastewater oil collection equipment can collect oil, but in actual application, the collection tank needs to move back and forth on the horizontal plane, which will cause the oily pollutants and sewage to emulsify and mix again, resulting in the coal chemical wastewater oil collection equipment being unable to completely remove the oily pollutants in the sewage. In addition, the collection tank and inclined plate that need to be submerged in water will also cause the liquid level to rise, thereby causing the liquid level to fluctuate, causing the sewage and the oil to enter the collection tank together, affecting the subsequent separate treatment of the oil.

[0006] In order to solve the above problems, there is a need for an oil spill collection device that can reduce the fluctuation of the liquid surface while collecting the oil spill, thereby ensuring that the oil spill can be completely collected.

[0007] In order to achieve the above-mentioned object, the first aspect of the present invention provides a floating oil collection device, which includes a treatment tank, a concentration module and a collection module, wherein the concentration module and the collection module are both fixed on the top of the treatment tank and partially extend into the treatment tank. The collection module includes a storage bin extending into the treatment tank, the top of the storage bin is provided with an opening and a sealing cover for covering the opening to seal the storage bin, and at least one first telescopic rod is provided in the storage bin, one end of the first telescopic rod is fixed in the storage bin, and the other end extends upward and is fixedly connected to the sealing cover to drive the sealing cover to open or close the storage bin when the first telescopic rod is extended or shortened.

[0008] Preferably, the collection module further comprises a sewage pump and a sewage pipe connected to the sewage pump, the sewage pump is arranged at the top of the treatment tank, and the sewage pipe extends through the sealing cover to the bottom of the containing bin.

[0009] Preferably, the collection module also includes a bracket and a connecting piece, the bracket is arranged across the top of the processing tank, the connecting piece is arranged on the bracket and extends downward into the processing tank, and the containing bin is connected to the bracket through the connecting piece so as to be hoisted in the processing tank.

[0010] Preferably, the connecting piece is provided with a plurality of scale lines which can be immersed in the liquid in the treatment tank.

[0011] Preferably, the collection module further comprises a second telescopic rod, the second telescopic rod is arranged on the bracket, and the connecting piece is connected to the telescopic end of the second telescopic rod and extends downward into the processing pool.

[0012] Preferably, the concentration module includes a driving groove, a moving beam and a moving plate. The driving groove is arranged on both sides of the top of the treatment tank, and the two ends of the moving beam are inserted into the driving groove. The moving plate is connected to the bottom of the moving beam and extends into the treatment tank. It can be driven to move along the driving groove to concentrate the floating oil on the oily wastewater in the treatment tank to a predetermined area in the treatment tank.

[0013] Preferably, the centralized module also includes a screw rod and a motor. The screw rod is correspondingly arranged in the driving grooves located on both sides of the treatment pool and one end extends out of the driving groove. The motor is drivably connected to the end of the screw rod extending out of the driving groove. The driving groove is drivably clamped to the end of the moving beam through the screw rod to drive the moving beam to move on the horizontal plane.

[0014] Preferably, sealing pads are provided on both sides of the movable plate and are in close contact with the inner wall of the treatment tank.

[0015] A second aspect of the present invention provides a method for treating a floating oil, using the above-mentioned floating oil collection device, the method comprising: S1: Start the concentrating module, which moves to a predetermined position to concentrate the floating oil layer to one end of the treatment pool where the collecting module is provided; S2: The centralizing module stops at a predetermined position, and the first telescopic rod in the collecting module drives the sealing cover to open upward to allow the floating oil to flow into the containing chamber; S3: After the floating oil completely flows into the containing chamber, the first telescopic rod drives the sealing cover to close.

[0016] Preferably, before step S1, the sewage to be treated is sent into a treatment tank and allowed to stand to separate the floating oil and water in the sewage to be treated.

[0017] The floating oil collection device of this scheme can collect floating oil without causing liquid surface fluctuation, so that all floating oil in sewage can be collected. When collecting floating oil, sewage is first added into the treatment tank, and the sewage is left to stand until all oily pollutants float up and form a floating oil layer, and then the concentration module is started to concentrate the floating oil to a predetermined area in the treatment tank. The collection module is set in the predetermined area, and the liquid surface height is adjusted by the drainage component, so that the bottom surface height of the floating oil layer in the predetermined area is adjusted to be exactly the same as the height of the opening on the receiving bin in the collection module. The first telescopic rod in the receiving bin is started to extend it, so as to drive the sealing cover to move upward to open the receiving bin, so that the floating oil can flow into the receiving bin from the opening. After the floating oil completely flows into the receiving bin, the first telescopic rod is started and retracted so that the sealing cover covers the opening on the receiving bin and seals the receiving bin, and the floating oil collection is completed. The remaining sewage is drained from the treatment tank to start the next floating oil treatment process. The height of the opening on the receiving bin is just at the height of the floating oil layer, so the floating oil can all flow into the receiving bin. The floating oil collection device provided by the present invention collects floating oil through an openable and closable receiving bin, wherein when the first telescopic rod pushes the sealing cover to move up and down, the contact area between the sealing cover and the liquid surface is relatively small, and by making the first telescopic rod move at a relatively low speed, the liquid surface will not fluctuate when the receiving bin is opened and closed, thereby ensuring that the floating oil will not be mixed with sewage and emulsified, and can be completely collected in the receiving bin. At the same time, the sealing cover does not fluctuate when it is raised and lowered, and it can also ensure that no sewage enters the receiving bin, which facilitates the separate treatment of the floating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application document or the technical solutions in the prior art, the drawings required for use in the description of the embodiments or the prior art are briefly introduced below. Obviously, the drawings described below are only references to some embodiments in the present application document. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, and some parts of them can also be adjusted for use.

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 is another overall structural schematic diagram of an embodiment of the present invention; Figure 3 is a schematic structural diagram of a moving beam and a moving plate portion in one embodiment of the present invention; Figure 4 is a schematic diagram of the structure of a collection module in one embodiment of the present invention; Figure 5 It is a schematic cross-sectional structure diagram of a collection module in one embodiment of the present invention.

[0020] Description of Reference Numerals 1. Treatment tank; 2. Driving groove; 3. Screw rod; 31. Motor; 4. Moving plate; 41. Sealing pad; 5. Moving beam; 6. Bracket; 7. Receiving chamber; 8. Sealing cover; 9. Connecting piece; 91. Scale line; 10. Second telescopic rod; 11. Sewage pump; 12. First telescopic rod; 13. Sewage pipe. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present invention, but cannot be used to limit the scope of the present invention. The present invention can be implemented in many different forms and is not limited to the specific embodiments of the invention herein, but includes all technical solutions falling within the scope of the claims.

[0022] The present invention provides these embodiments to make the present invention thorough and complete, and fully express the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of materials, numerical expressions and numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, rather than as limiting.

[0023] It should be noted that, in the description of the present invention, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0024] In addition, the words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" is not strictly perpendicular, but is within the tolerance range. "Parallel" is not strictly parallel, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0025] It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0026] All terms used in the present invention have the same meanings as those understood by ordinary technicians in the field to which the present invention belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0027] The techniques, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the specification. In order to achieve the above-mentioned purpose, the present invention provides a floating oil collection device, such as Figure 1 and Figure 2 As shown, it includes a treatment pool, a concentration module and a collection module, wherein the concentration module and the collection module are fixed on the top of the treatment pool 1 and partially extend into the treatment pool 1. The collection module includes a storage bin 7 extending into the treatment pool, the top of the storage bin 7 is provided with an opening and a sealing cover 8 for covering the opening to seal the storage bin 7, at least one first telescopic rod 12 is provided in the storage bin 7, one end of the first telescopic rod 12 is fixed in the storage bin 7, and the other end extends upward and is fixedly connected to the sealing cover 8 to drive the sealing cover 8 to open or close the storage bin 7 when the first telescopic rod 12 is extended or shortened.

[0028] The floating oil collection device of this scheme can collect floating oil without causing liquid surface fluctuation, so that all floating oil in sewage can be collected. When collecting floating oil, sewage is first added into the treatment tank 1, and the sewage is left to stand until all oily pollutants float up and form a floating oil layer, and then the concentration module is started to concentrate the floating oil to a predetermined area in the treatment tank, and the collection module is arranged in the predetermined area. The liquid level is adjusted by the drainage component, so that the bottom surface height of the floating oil layer in the predetermined area is adjusted to be exactly the same as the height of the opening on the receiving bin 7 in the collection module. The drainage component can be any component arranged in the treatment tank that can discharge water from the treatment tank 1, such as a drainage pump or a drainage pipe. The first telescopic rod 12 in the receiving bin is started to extend, thereby driving the sealing cover 8 to move upward to open the receiving bin 7, so that the floating oil can flow into the receiving bin 7 from the opening. After the floating oil completely flows into the receiving bin 7, the first telescopic rod 12 is started and retracted so that the sealing cover 8 covers the opening on the receiving bin 7 and seals the receiving bin 7, and the floating oil collection is completed. The remaining sewage is drained from the treatment tank 1 to start the next oil floating treatment process. The height of the opening on the receiving bin 7 is just at the height of the oil floating layer, so the oil floating can all flow into the receiving bin 7. In the oil floating collection device provided by the present invention, the oil floating is collected by the openable and closable receiving bin 7, wherein when the first telescopic rod 12 pushes the sealing cover 8 to move up and down, the contact area between the sealing cover 8 and the liquid surface is relatively small, and by making the first telescopic rod move at a lower speed, the liquid surface will not fluctuate when the receiving bin is opened and closed, thereby ensuring that the oil floating will not be mixed and emulsified with the sewage, and can be completely stored in the receiving bin 7. At the same time, the sealing cover 8 does not fluctuate during the lifting process, and it can also ensure that no sewage enters the receiving bin 7, which facilitates the separate treatment of the oil floating.

[0029] Preferably, any water inlet and outlet equipment, such as a water inlet and a water outlet, that can deliver sewage into and out of the treatment tank 1 is provided in the treatment tank 1. The water inlet and outlet equipment can help the present oil floating collection device to quickly deliver the sewage to be treated into the treatment tank 1, and quickly discharge the treated sewage to prepare for the treatment of the next batch of sewage, which can improve the efficiency of the present oil floating collection device.

[0030] Preferably, a sealing member, such as a rubber member for sealing, may be provided at the position where the sealing cover 8 contacts the containing chamber 7 , so that the sealing cover 8 and the containing chamber 7 fit tightly together, thereby ensuring the sealing of the containing chamber 7 .

[0031] Preferably, the sealing cover 8 can be configured to separate the floating oil layer to reduce the resistance encountered by the sealing cover 8 when passing through the floating oil layer, thereby reducing the fluctuation of the floating oil layer and sewage during the opening process, for example, having a vertically upward edge.

[0032] Preferably, if Figure 2 , Figure 4 and Figure 5As shown, the collection module also includes a sewage pump 11 and a sewage pipe 13 connected to the sewage pump 11. The sewage pump 11 is arranged at the top of the treatment tank 1, and the sewage pipe 13 extends to the bottom of the storage tank 7 through the sealing cover 8. When the storage tank 7 collects all the floating oil and the sealing cover 8 is lowered to the position of sealing the storage tank 7, the sewage pipe 13 can contact the bottom of the storage tank 7, start the sewage pump 11 connected to the sewage pipe 13, and completely discharge the floating oil collected in the storage tank 7 to the external container for the next treatment. The storage tank 7 that has been drained can collect floating oil again. Through the sewage pump 11 and the sewage pipe 13, the storage tank 7 can be quickly cleaned without removing and cleaning the storage tank 7, thereby improving the efficiency of the floating oil collection device.

[0033] When there is too much floating oil and the internal space of the storage tank 7 cannot collect all the floating oil at one time, the height of the sealing cover 8 rising from the storage tank 7 can be adjusted by the first telescopic rod 12 when collecting the floating oil, so as to adjust the speed of the floating oil entering the storage tank 7. When the floating oil level in the storage tank 7 is higher than the outlet of the sewage pipe 13, the sewage pump 11 is turned on, so that the floating oil is collected by the storage tank 7 and discharged through the sewage pipe 13. Through such a configuration, the time consumed by the rising and falling of the sealing cover 8 can be saved when handling a large amount of floating oil, thereby further improving the efficiency of the floating oil collection device.

[0034] Preferably, if Figure 1 , Figure 2 and Figure 4 As shown, the collection module also includes a bracket 6 and a connector 9, the bracket 6 is arranged across the top of the treatment tank 1, the connector 9 is arranged on the bracket 6 and extends downward into the treatment tank 1, and the receiving bin 7 is connected to the bracket 6 through the connector 9 so as to be hoisted in the treatment tank 1. The bracket 6 is a rigid connector to maintain the height of the receiving bin 7 hoisted in the treatment tank 1 during the sewage treatment process without being affected by the buoyancy of the sewage. In the process of sewage treatment, the opening on the receiving bin 7 hoisted and fixed at a certain height can be set at a higher height, so that before the receiving bin 7 opens and starts to collect the floating oil, the height of the floating oil layer can be set higher, that is, more water can be contained in the treatment tank 1 in a single treatment, thereby improving the efficiency of the floating oil collection device.

[0035] Preferably, if Figure 4As shown, the connecting member 9 is provided with a plurality of scale lines 91 that can be submerged by the liquid in the treatment tank 1. In the process of sewage treatment, when the sewage is left to stand, the floating oil and the sewage are separated and form a floating oil layer, the staff can observe the thickness of the floating oil layer according to the scale lines 91 set on the connecting member 9, and adjust the height of the first telescopic rod 12 according to the obtained parameters, so that the height of the gap between the opening of the receiving chamber 7 and the sealing cover 8 can match the thickness of the floating oil layer, so that the floating oil layer enters the receiving chamber 7 at the fastest speed, thereby improving the efficiency of the floating oil collection device.

[0036] Preferably, if Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the collection module also includes a second telescopic rod 10, which is arranged on the bracket 6, and the connecting member 9 is connected to the telescopic end of the second telescopic rod 10 and extends downward into the treatment tank 1. In the process of sewage treatment, when the sewage is left to stand, the floating oil and the sewage are separated and form a floating oil layer, the telescopic length of the second telescopic rod 10 can be adjusted according to the reading of the scale line 91 on the connecting member 9, so that the second telescopic rod 10 drives the receiving bin 7 to move to the opening position of the receiving bin 7 just in line with the height of the bottom surface of the floating oil layer. By aligning the opening of the receiving bin 7 and the bottom surface of the floating oil layer by the second telescopic rod 10, compared with directly adjusting the amount of sewage in the treatment tank 1, it is more efficient and can avoid stirring the liquid surface by slowly extending and retracting the second telescopic rod 10, thereby preventing the floating oil from mixing and emulsifying with the sewage, and all the floating oil can be collected in the receiving bin 7.

[0037] When the total amount of sewage to be treated is small and the liquid level is low after being injected into the treatment pool 1, the second telescopic rod 10 can be used to lower the receiving chamber 7 below the liquid level, and the thickness of the floating oil layer obtained by the scale line 91 on the connecting member 9 can be used to fine-tune the extension length of the second telescopic rod 10, so that the height of the opening of the receiving chamber 7 is just consistent with the height of the bottom surface of the floating oil layer, and the sealing cover 8 is opened to collect the floating oil. Through the second telescopic rod 10, the floating oil collection device can process a wider range of sewage volumes, and can not only process a large amount of sewage, but also be used when the amount of sewage is small.

[0038] Preferably, if Figure 1As shown, the centralization module includes a driving groove 2, a moving beam 5 and a moving plate 4. The driving groove 2 is arranged on both sides of the top of the treatment tank 1, and the two ends of the moving beam 5 are inserted into the driving groove 2. The moving plate 4 is connected to the bottom of the moving beam 5 and extends into the treatment tank 1, and can be driven to move along the driving groove 2 to concentrate the floating oil on the oily sewage in the treatment tank 1 to a predetermined area in the treatment tank 1. A transmission component is arranged in the driving groove 2 to drive the moving beam 5 to move, for example, a belt arranged in the driving groove 2 and abutting against the moving beam 5 in a transmission manner. In the sewage treatment process, when the sewage is left to stand, the floating oil is stratified with the sewage and floats on the surface, the moving beam 5 is driven by the driving groove 2, thereby driving the moving plate 4 that partially extends under the liquid surface to move to a predetermined position and concentrate the floating oil to the predetermined position, and then collect the floating oil through the containing bin 7 arranged at the predetermined position. The width of the moving plate 4 is consistent with the width of the treatment tank 1, so that all the floating oil on the liquid surface of the treatment tank 1 can be concentrated to the predetermined position. The speed of the driving trough 2 is set to a speed that does not cause a large agitation of the sewage so that the sewage and the floating oil layer will not be emulsified and mixed again. The floating oil layer can be concentrated to a predetermined position through the concentration module to form a thicker floating oil layer. The height of the gap between the sealing cover 8 and the opening of the containing chamber 7 can be increased by the first telescopic rod 12 to increase the speed at which the floating oil layer flows into the containing chamber 7, thereby improving the efficiency of the floating oil collection device.

[0039] Preferably, if Figure 1 and Figure 2 As shown, the centralized module also includes a screw rod 3 and a motor 31. The screw rod 3 is correspondingly arranged in the driving groove 2 located on both sides of the treatment tank 1 and one end thereof extends out of the driving groove 2. The motor 31 is drivably connected to one end of the screw rod 3 extending out of the driving groove 2. The driving groove 2 is drivably engaged with the end of the moving beam 5 through the screw rod 3 to drive the moving beam 5 to move on the horizontal plane. By adjusting the motor 31, the rotation speed of the screw rod 3 drivably connected to the motor 31 can be adjusted, so that the moving plate 4 moves at a sufficiently slow speed to prevent the moving plate 4 from stirring the sewage, thereby causing the sewage to mix and emulsify with the floating oil. Through the screw rod 3, the two ends of the moving beam 5 can be stably engaged in the groove on the screw rod 3, so that the driving groove 2 can more stably drive the moving beam 5 through the screw rod 3 to drive the moving plate 4 to move.

[0040] Preferably, if Figure 3 As shown, sealing pads 41 are provided on both sides of the movable plate 4 to fit tightly with the inner wall of the treatment tank 1. The sealing pads 41 can be of any length, with part of the sealing pads 41 being above the liquid surface and part of the sealing pads 41 being below the liquid surface. Through the sealing pads 41, the movable plate 4 can completely cover the sewage page in the width direction of the inside of the treatment tank 1, thereby concentrating all the floating oil layers to a predetermined position, and ensuring that the containing chamber 7 can collect all the floating oil in the sewage.

[0041] Preferably, the movable plate 4 is detachably connected to the movable beam 5. Through the detachable movable plate 4, the movable plate 4 can be replaced according to the amount of sewage in the treatment tank 1 and the height of the sewage page, and the movable plates 4 of different lengths are used to ensure that the centralized module of the treatment tank can be applied to both the scene with a large amount of sewage and the scene with a small amount of sewage, thereby broadening the application scene of the present floating oil collection device.

[0042] A second aspect of the present invention provides a method for treating a floating oil, using the above-mentioned floating oil collection device, the method comprising: S1: Start the concentrating module, which moves to a predetermined position to concentrate the floating oil layer to one end of the treatment pool where the collecting module is provided; S2: the centralizing module stops at a predetermined position, and the first telescopic rod 12 in the collecting module drives the sealing cover 8 to open upwards to allow the floating oil to flow into the containing chamber 7; S3: After the floating oil completely flows into the containing chamber 7, the first telescopic rod 12 drives the sealing cover 8 to close.

[0043] Preferably, before step S1, the sewage to be treated is poured into the treatment tank 1 and allowed to stand to separate the floating oil and water in the sewage to be treated.

[0044] Specifically, the oil spill treatment method comprises the following steps: First, the sewage to be treated is poured into the treatment tank 1 and allowed to stand to separate the floating oil and water in the sewage to be treated.

[0045] When the sewage is completely settled and the sewage and the floating oil layer are completely separated, the concentration module is started, and the driving slot 2 in the concentration module drives the moving beam 5 to drive the moving plate 4 extending below the liquid surface to move to a predetermined position to concentrate the floating oil layer to one end of the treatment tank where the collection module is set. The moving beam 5 in the concentration module moves slowly enough so as not to agitate the sewage and cause the floating oil and sewage to mix and emulsify.

[0046] The concentration module stops at a predetermined position, and after the floating oil is completely concentrated at the predetermined position, the scale line 91 on the connecting member 9 is observed, and according to the obtained thickness of the floating oil layer, the height of the opening of the receiving chamber 7 is adjusted to the height of the bottom surface of the floating oil layer through the second telescopic rod 10, and then the sealing cover 8 is driven to open upwards through the first telescopic rod 12 in the collection module to allow the floating oil to flow into the receiving chamber 7. The telescopic amount of the first telescopic rod 12 can be determined by the aforementioned reading of the thickness of the floating oil layer.

[0047] After the floating oil completely flows into the receiving tank 7, there is no floating oil on the liquid surface at the predetermined position, or the receiving tank 7 is filled with floating oil, the sealing cover 8 is driven to close and seal the receiving tank 7 through the first telescopic rod 12. The sewage pump 11 arranged on the top of the treatment tank 1 is turned on, and the floating oil is extracted from the receiving tank 7 through the sewage pipe 13 arranged inside the receiving tank 7. If there is still floating oil in the treatment tank 1, the receiving tank 7 is opened again by the first telescopic rod 12 and the above steps are repeated to make the floating oil flow into the receiving tank 7 and suck the floating oil through the sewage pipe 13 and the sewage pump 11 until the floating oil in the treatment tank 1 is completely collected. If there is no floating oil in the treatment tank 1, the sewage in the treatment tank is discharged to empty the treatment tank 1 to collect and process the floating oil in the next batch of sewage. This method can ensure that there is no fluctuation in the liquid surface when collecting the floating oil, thereby preventing the floating oil and sewage from being stirred and emulsified when collecting the floating oil, so that the floating oil cannot be completely collected into the receiving tank 7. In addition, the method can ensure that the collected oil spill does not contain sewage by avoiding the fluctuation of the liquid level, thereby facilitating the subsequent treatment of the oil spill. The method also has the advantages of high efficiency, high degree of automation, and can save manpower.

[0048] So far, the preferred embodiments of the present invention have been described in detail in conjunction with the accompanying drawings. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed in the present invention.

[0049] Although some preferred embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present invention. In particular, the various technical features mentioned in the various preferred embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A floating oil collection device, characterized in that: include: A treatment tank (1), wherein the treatment tank (1) is configured to accommodate oily wastewater; A concentrating module arranged on the treatment tank (1), the concentrating module being configured to concentrate floating oil on the oily wastewater in the treatment tank (1) to a predetermined area in the treatment tank (1); as well as A collecting module is arranged on the treatment tank (1), the collecting module comprising a containing chamber (7) extending into the treatment tank (1) and having a top opening, and a sealing cover (8) for closing the top opening of the containing chamber (7); at least one first telescopic rod (12) is arranged in the containing chamber (7); one end of the first telescopic rod (12) is fixed in the containing chamber (7), and the other end extends upward and is connected to the sealing cover (8), so that the sealing cover (8) is driven to open or close the top opening of the containing chamber (7) by extending or shortening the first telescopic rod (12), and floating oil concentrated in the predetermined area is allowed to enter the containing chamber (7) when the top opening is opened.

2. The floating oil collection device according to claim 1, characterized in that: The collection module further comprises a sewage pump (11) and a sewage pipe (13) connected to the sewage pump (11); the sewage pump (11) is arranged at the top of the treatment tank (1); and the sewage pipe (13) passes through the sealing cover (8) and extends to the bottom of the containing bin (7).

3. The floating oil collection device according to claim 1, characterized in that: The collection module further comprises a bracket (6) and a connecting piece (9), wherein the bracket (6) is arranged across the top of the treatment pool (1), the connecting piece (9) is arranged on the bracket (6) and extends downward into the treatment pool (1), and the containing bin (7) is connected to the bracket (6) via the connecting piece (9) so as to be hoisted into the treatment pool (1).

4. The floating oil collection device according to claim 3, characterized in that: The connecting piece (9) is provided with a plurality of scale lines (91) that can be submerged by the liquid in the treatment pool (1).

5. The floating oil collection device according to claim 3, characterized in that: The collection module further comprises a second telescopic rod (10), the second telescopic rod (10) being arranged on the bracket (6), the connecting member (9) being connected to the telescopic end of the second telescopic rod (10) and extending downwardly into the treatment pool (1).

6. The floating oil collection device according to claim 1, characterized in that: The centralizing module comprises a driving groove (2), a moving beam (5) and a moving plate (4); the driving groove (2) is arranged on both sides of the top of the treatment tank (1); both ends of the moving beam (5) are inserted into the driving groove (2); the moving plate (4) is connected to the bottom of the moving beam (5) and extends into the treatment tank (1); and can be driven to move along the driving groove (2) to concentrate the floating oil on the oily wastewater in the treatment tank (1) to a predetermined area in the treatment tank (1).

7. The floating oil collection device according to claim 6, characterized in that: The centralized module further comprises a screw rod (3) and a motor (31); the screw rod (3) is correspondingly arranged in the driving grooves (2) located on both sides of the treatment pool (1) and one end thereof protrudes from the driving groove (2); the motor (31) is drivably connected to the end of the screw rod (3) protruding from the driving groove (2); the driving groove (2) is drivably engaged with the end of the moving beam (5) through the screw rod (3) to drive the moving beam (5) to move on a horizontal plane.

8. The floating oil collection device according to claim 7, characterized in that: Sealing pads (41) that are tightly fitted to the inner wall of the treatment pool (1) are provided on both sides of the movable plate (4).

9. A method for treating oil spills, characterized in that: Using the oil spill collection device as described in any one of claims 1 to 8, the method comprises: S1: starting the centralizing module, and moving the centralizing module toward one end of the treatment pool (1) to centralize the floating oil on the oily wastewater in the treatment pool (1) to a predetermined area; S2: the first telescopic rod (12) in the collection module drives the sealing cover (8) to open the top opening of the containing chamber (7) upwards, so that the floating oil flows into the containing chamber (7); S3: The first telescopic rod (12) drives the sealing cover (8) to return to the top opening of the containing chamber (7) to close and seal the containing chamber (7).

10. A method for treating oil spill according to claim 9, characterized in that: Before step S1, the sewage to be treated is poured into the treatment tank (1) and allowed to stand to separate the floating oil and water in the sewage to be treated.

Images