Liquid-liquid separation apparatus, extraction apparatus and centrifugal extraction apparatus and method

Abstract

In the liquid-liquid separation device, the extraction device and the centrifugal extraction device and method, one end of the guide pipe is located in the A1 cavity, and the other end of the guide pipe is located in the A2 cavity; the guide pipe internally includes a channel for liquid flow, the guide pipe located in the A1 cavity includes N liquid inlets, and the N liquid inlets are in communication with the channel; one end of the guide pipe located in the A2 cavity includes N liquid outlets, and the N liquid outlets are in communication with the channel; an inlet ID1 is in communication with the A1 cavity, and is used for the liquid to be treated to enter the A1 cavity; an outlet OD1 is in communication with the A2 cavity, and is used for the liquid after treatment to flow out of the A2 cavity; the filter assembly includes a connecting kit and M1 filter devices; the filter assembly is arranged in the A2 cavity; the connecting kit includes a B1 containing cavity, and the guide pipe is in communication with the B1 containing cavity; the M1 filter devices include M1 containing cavities, the B1 containing cavity is in communication with the M1 containing cavities, and the M1 containing cavities are in communication with the external A2 cavity through a filter material.

Description

Technical Field

[0001] This invention relates to liquid-liquid separation devices, extraction devices, and centrifugal extraction devices and methods, specifically to a liquid-liquid separation device for water treatment containing particulate matter and suspended solids, which can be used for water filtration treatment of oily wastewater, wastewater containing impurities, and hydrometallurgical processes. Background Technology

[0002] Extraction is an operation that utilizes the difference in solubility or partition coefficient of a substance in two immiscible (or slightly soluble) solvents to transfer it from one solvent to the other, thereby achieving separation or purification. Its core principle is based on the partition law, which states that the concentration ratio of the solute in two phases is constant at a given temperature. The extractant must be immiscible with the original solvent and have a significantly higher solubility for the target substance than in the original solvent. Mixing and shaking, settling and layering, liquid-liquid separation, and multiple extractions are all commonly used extraction methods.

[0003] In industries such as chemical engineering, pharmaceuticals, and food processing, liquid-liquid extraction is a key technology for separating different components in a mixture.

[0004] Traditional extraction equipment, such as extraction towers and mixing and clarifying tanks, can accomplish separation tasks, but suffer from problems such as low efficiency, high energy consumption, and unstable separation results. With technological advancements, centrifugal extractors, with their advantages of high efficiency, energy saving, and continuous operation, have gradually become the core equipment in the field of liquid-liquid extraction.

[0005] However, in the liquid-liquid separation process, the liquid to be processed, such as in hydrometallurgical processes, is usually an oil-containing or ion-containing liquid, which often contains particulate matter and suspended matter. The presence of these particulate matter and suspended matter poses a great challenge to oil-water separation devices and methods. These particulate matter and suspended matter are prone to accumulate on the surface of the filter material, causing filter media blockage and thus affecting the normal operation of the oil-water separation device.

[0006] How to achieve efficient staged filtration through structural design, enabling not only liquid-liquid separation and allowing different types of impurities and liquids to enter different chambers, but also removing oily components from the extractant, is an important problem to be solved in this field. Summary of the Invention

[0007] The technical solution of this invention overcomes the shortcomings of existing technologies by designing a liquid-liquid separation device, an extraction device, and a centrifugal extraction device, which can simultaneously achieve extraction, oil-water separation, and impurity separation. It is a three-in-one integrated device, and both the equipment and method are simpler and more efficient. It can significantly improve the extraction efficiency of target substances containing particulate matter and suspended solids.

[0008] The technical solution of this application to solve the above-mentioned technical problems is a liquid-liquid separation device, including a receiving component, a connecting pipe, an inlet ID1, an outlet OD1, and a filter component; the receiving component includes a cavity A1 and a cavity A2; the connecting pipe connects the cavity A1 and the cavity A2; one end of the connecting pipe is located in the cavity A1, and the other end of the connecting pipe is located in the cavity A2; the connecting pipe includes a liquid flow channel, and the connecting pipe located in the cavity A1 includes an N inlet, which is connected to the aforementioned channel; the end of the connecting pipe located in the cavity A2 includes an N outlet. The system is connected to the aforementioned channel; inlet ID1 is connected to cavity A1 for the liquid to be treated to enter cavity A1; outlet OD1 is connected to cavity A2 for the treated liquid to flow out of cavity A2; the filter assembly includes a connecting kit and a filter device, the connecting kit and the filter device being connected; the filter assembly is disposed in cavity A2; the connecting kit includes cavity B1, the aforementioned guide tube being connected to cavity B1; the filter device includes filter media, the surface of which is nano-modified, the filter media being used to collect and float small oil particles in the liquid.

[0009] The filter device may include a receiving cavity M1, and the aforementioned receiving cavity B1 is connected to the receiving cavity M1.

[0010] It is possible that the M1 receiving cavity is a multi-faceted prism, and each side wall of the M1 receiving cavity protrudes outward to form the B filter material receiving part.

[0011] It is possible that the M1 receiving cavity is cylindrical, and the side wall of the M1 receiving cavity is covered with a C filter material receiving part.

[0012] Alternatively, the connecting kit may be a hollow cylinder with multiple through holes, and the B1 receiving cavity may be connected to the outside through the through holes; the filter may be an annular structure and may cover the through holes.

[0013] Alternatively, the connecting kit may be a hollow cylinder with multiple through holes, and the filtering device may include one or more filter plates that cover the one or more through holes.

[0014] It may also include outlet OD3, and the top of the above-mentioned connection kit includes a K1 liquid outlet, which is connected to outlet OD3.

[0015] Alternatively, the horizontal cross-section of the aforementioned A1 cavity can be circular, with the inlet ID1 connected to the liquid inlet pipe, and the liquid inlet pipe being perpendicular to the radius of the aforementioned circle.

[0016] It is possible that the aforementioned N inlet includes multiple openings, and the diameter of the openings is less than one-fifth of the diameter of the conductive tube.

[0017] It may also include a filter kit, which is fitted onto the aforementioned guide tube and covers the aforementioned N inlet.

[0018] It may also include a enclosure cylinder, which includes a central through hole. The bottom of the enclosure cylinder is connected to the bottom of the A1 cavity. One end of the guide tube passes through the central through hole and extends into the A1 cavity. The upper part of the enclosure cylinder is connected to the A1 cavity.

[0019] It may also include a drain outlet OD5, which is connected to the bottom of the cavity A1.

[0020] It may also include outlet OD2; outlet OD2 is connected to cavity A2 and is used for the treated liquid to flow out of cavity A2; outlet OD2 is located at the bottom of cavity A2; outlet OD1 is located at the top of cavity A2.

[0021] It may also include a support component, which is connected to the bottom of the receiving component; the support component includes a support pipe, which is connected to the A1 cavity, and a drain outlet OD5 is provided on the support pipe and is connected to the support pipe.

[0022] Yes, the guide tube is a hollow rotating shaft, and a mechanical seal device A is installed on the hollow rotating shaft. The mechanical seal device A is used to achieve a metal-sealed connection with the external power device.

[0023] The technical solution of this application to solve the above-mentioned technical problems can also be an extraction device, including the above-mentioned liquid-liquid separation device.

[0024] It can also include an extractant mixing device, which is installed on the inlet ID1; the extractant mixing device includes an extractant inlet, a water inlet, and a spray plate; the extractant inlet is used for the extractant to enter, and the extractant inlet and the water inlet are set opposite to each other, and the spray plate is set on one side of the extractant inlet for guiding the flow and dispersing the extractant after it enters.

[0025] The technical solution of this application to solve the above-mentioned technical problems can also be a centrifugal extraction device, including the above-mentioned extraction device; it also includes a driving device, the driving device being mechanically connected to the above-mentioned guide tube, and the power driving device being used to drive the above-mentioned guide tube to rotate.

[0026] It can also include blade assemblies; the blades of the blade assembly are mounted on the guide tube, which is a hollow rotating shaft, and the blade assembly is located in cavity A1.

[0027] The technical solution of this application to solve the above-mentioned technical problems can also be a centrifugal extraction method, based on the above-mentioned centrifugal extraction device; the thickness of the spray plate is 20 mm, the diameter of the guide hole is 1 mm; the diameter range of the droplets input to the inlet ID1 is 50 micrometers-300 micrometers; the speed range of the drive device driving the guide tube to rotate is 500 revolutions per minute-1500 revolutions per minute.

[0028] Compared with the prior art, one of the advantages of the present invention is that the filter assembly is set separately, which facilitates the replacement of consumables. The lower part of the M1 receiving cavity of the filter device may include connecting threads for detachable connection with the connecting kit or other external connecting terminals.

[0029] Compared with the prior art, one of the beneficial effects of the present invention is that the M1 receiving cavity, which is a polygonal prism, is easy to manufacture and can accommodate as much filter material as possible; each side wall protrudes outward to form the B filter material receiving part, which can further expand the space for accommodating filter material.

[0030] Compared with the prior art, one of the beneficial effects of the present invention is that the cylindrical M1 receiving cavity is designed to facilitate manufacturing and accommodate as much filter material as possible; the C filter material receiving part is wrapped around the side wall of the M1 receiving cavity to further accommodate filter material and enhance the filtration effect.

[0031] Compared with the prior art, one of the beneficial effects of the present invention is that the connecting kit can connect multiple filter devices at once. The more filter devices the connecting kit can connect, the greater the overall benefit.

[0032] Compared with the prior art, one of the advantages of the present invention is that by setting up multiple filtration devices to perform filtration simultaneously, the filtration effect is enhanced.

[0033] Compared with the prior art, one of the advantages of the present invention is that the connecting kit itself provides a liquid containing space and an interface for connecting multiple filter devices. The power device makes the guide tube rotate, which increases the contact area and exchange rate between water and filter media.

[0034] Compared with the prior art, one of the beneficial effects of the present invention is that the connection method of the upper and lower cavity structure and the guide tube makes it difficult for impurity particles in the liquid to enter the N inlet due to gravity, so that they will remain in the A1 cavity, thus realizing the separation and filtration of this part of the impurities.

[0035] Compared with the prior art, one of the beneficial effects of the present invention is that the multiple openings of the N inlet and the setting of the opening diameter further enhance the filtration effect of the N inlet, and the corresponding opening diameter can be set according to the size of the impurity particles in the water to be filtered.

[0036] Compared with the prior art, one of the beneficial effects of the present invention is that the filter kit further increases the filtration effect of the N inlet.

[0037] Compared with the prior art, one of the beneficial effects of the present invention is that the arrangement of the inlet ID1 and the liquid inlet pipe allows the liquid to flow better in the A1 cavity, which can further enhance the filtration effect through the N inlet.

[0038] Compared with the prior art, one of the beneficial effects of the present invention is that the baffle can block the impurities that are deposited at the bottom of the A1 cavity due to gravity after filtration outside the baffle, so as to avoid affecting the filtration effect of the N inlet and ensure that the water entering the N inlet carries as few deposited impurities as possible.

[0039] Compared with the prior art, one of the beneficial effects of the present invention is that the drain outlet OD5 can directly discharge the impurities that have settled to the bottom.

[0040] Compared with the prior art, one of the beneficial effects of the present invention is that using a support component as a sewage pipe can reduce the number of openings. The support component has a large depth, which can accommodate more separated materials, and at the same time, the depth allows the separated materials to settle effectively.

[0041] Compared with the prior art, one of the beneficial effects of the present invention is that the outlet OD2 can discharge impurities precipitated in the A2 cavity, and the outlet OD1 is located at the top of the A2 cavity to discharge suspended matter such as oil.

[0042] Compared with existing technologies, one of the beneficial effects of this invention is that the design of outlets OD3 and K1 allows for the discharge of suspended solids from the B1 containing cavity. It enables the filtration of suspended solids of different properties; the suspended solids discharged from outlets OD3 and OD1 can be of different properties. Of course, the suspended solids discharged from outlets OD3 and OD1 can also be of the same property. When a connecting kit is provided, the connecting kit itself can also be a component with filtering properties, further improving the separation and filtration efficiency.

[0043] Compared with the prior art, one of the beneficial effects of the present invention is that the rotation of the guide tube drives the liquid to rotate at high speed in the A1 and A2 cavities. Impurities are separated due to centrifugal force and gravity, and it is difficult for impurities to enter from the N inlet, thereby playing a separation role.

[0044] Compared with the prior art, one of the beneficial effects of the present invention is that the blades rotate with the guide tube, thereby enhancing the driving force and achieving better stirring and centrifugal separation effects.

[0045] Compared with the prior art, one of the beneficial effects of the present invention is that the A1 cavity and the A2 cavity are arranged vertically, and the A2 cavity and the A1 cavity are separated step by step, which enhances the separation effect; the blade is in the A1 cavity, which can further enhance the centrifugal separation and gravity separation effect.

[0046] Compared with the prior art, one of the beneficial effects of the present invention is that the mechanical seal device A can keep the cavity A1 and the power device sealed, ensuring the seal during high-speed rotation, improving the safety and efficiency of the equipment, and ensuring the centrifugal separation effect.

[0047] Compared with the prior art, one of the advantages of the present invention is that the setting of the extractant mixing device allows the equipment to be used for extraction.

[0048] Compared with the prior art, one of the beneficial effects of the present invention is that the setting of the power device further enables centrifugal extraction.

[0049] Compared with the prior art, one of the beneficial effects of the present invention is that the liquid-liquid separation device used for extraction or centrifugal extraction has a compact structure, which can not only realize extraction, but also filter out impurities and separate suspended solids, such as oil-water separation.

[0050] Compared with the prior art, one of the beneficial effects of the present invention is that the dense multi-prism core of the filter device further enhances the filtration and separation effect, and can achieve very high-requirement extraction and oil-water separation treatment. It is a rare integrated device in hydrometallurgy, which can simultaneously achieve extraction, oil-water separation and impurity separation. It is a three-in-one integrated device.

[0051] Compared with the prior art, one of the advantages of the present invention is that the extraction method can complete extraction, oil-water separation, and impurity separation in one process, making the method simpler and more efficient. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of one embodiment of a liquid-liquid separation device;

[0053] Figure 2 This is a schematic diagram of one embodiment of a liquid-liquid separation device;

[0054] Figure 3 This is a schematic diagram of one embodiment of a liquid-liquid separation device;

[0055] Figure 4 This is a schematic diagram of one embodiment of the filtration device;

[0056] Figure 5 This is a schematic diagram of one embodiment of the filtration device;

[0057] Figure 6This is a schematic diagram of one embodiment of the filter component;

[0058] Figure 7 This is a schematic diagram of one embodiment of a liquid-liquid separation device;

[0059] Figure 8 This is a schematic diagram of one embodiment of a liquid-liquid separation device;

[0060] Figure 9 This is a schematic diagram of the water flow inside cavity A1;

[0061] Figure 10 This is a schematic diagram of one embodiment of the centrifugal extraction device;

[0062] Figure 11 This is a schematic diagram of one embodiment of the centrifugal extraction device;

[0063] Figure 12 This is a three-dimensional schematic diagram of one embodiment of the centrifugal extraction apparatus;

[0064] Figure 13 This is a three-dimensional schematic diagram of one embodiment of the centrifugal extraction apparatus;

[0065] Figure 14 This is a schematic diagram showing the removal of a portion of the outer casing in one embodiment of the centrifugal extraction apparatus;

[0066] Figure 15 This is a cross-sectional schematic diagram of one embodiment of the centrifugal extraction apparatus;

[0067] Figure 16 This is one of the cross-sectional schematic diagrams of a mechanical seal structure;

[0068] Figure 17 This is the second sectional view of the mechanical seal structure;

[0069] Figure 18 This is a schematic diagram of one embodiment of a centrifugal extraction apparatus;

[0070] Figure 19 This is a schematic diagram of one embodiment of the filtration device;

[0071] Figure 20 This is a top view schematic diagram of one embodiment of the filter component;

[0072] Figure 21 This is a side view schematic diagram of one embodiment of the filtering component;

[0073] Figure 22 This is a schematic diagram of the pipe cap;

[0074] Figure 23 With the pipe cap on. Figure 18 A cross-sectional view of part C in the middle. Detailed Implementation

[0075] The invention will be further described in detail below with reference to the accompanying drawings.

[0076] like Figure 1 In one embodiment of a liquid-liquid separation device, there are a receiving component, a connecting pipe, an inlet ID1, an outlet OD1, and a filter component. The receiving component includes a cavity A1 and a cavity A2. The connecting pipe 0110 connects the cavity A1 and the cavity A2. One end of the connecting pipe is located in the cavity A1, and the other end is located in the cavity A2. The connecting pipe includes a channel for liquid flow. The connecting pipe located in the cavity A1 includes an N inlet 0111, which is connected to the channel. The end of the connecting pipe located in the cavity A2 includes an N outlet 0112, which is connected to the channel. The system is interconnected; inlet ID1 is connected to cavity A1 for the liquid to be treated to enter cavity A1; outlet OD1 is connected to cavity A2 for the treated liquid to flow out of cavity A2; the filter assembly includes connecting kit 0120 and filter device 0130; the connecting kit and filter device are connected; the filter assembly is disposed in cavity A2; the connecting kit includes cavity B1, and the aforementioned guide tube is connected to cavity B1; the filter device includes filter media, the surface of which is nano-modified, and the filter media is used to collect and float small oil particles in the liquid. The filter device includes cavity M1, which is connected to the outside through filter material 0131, and cavity B1 is connected to cavity M1.

[0077] Operating state: The extracted mixed liquid enters the internal channel of the guide tube through inlet ID1. The liquid inside the guide tube first enters the B1 receiving chamber, then enters the M1 receiving chamber, passes through the filter material, and enters the A2 chamber, finally flowing out through outlet OD1. Outlet OD1 can also be used for exhaust.

[0078] like Figure 2 In one embodiment of a liquid-liquid separation device, the outlet OD1 is located on one side of the A2 cavity.

[0079] like Figure 3 In one embodiment of a liquid-liquid separation device, the filter device of the filter assembly is an M2 filter device; the M2 filter device includes an M2 receiving cavity, which is connected to the outside through a filter material, and the aforementioned B1 receiving cavity is connected to the M2 receiving cavity.

[0080] like Figure 4The schematic diagram of the filtration device shows that the M1 receiving cavity is a polygonal prism 0410, and each side wall of the M1 receiving cavity protrudes outward to form the B filter media receiving section 0420. Both the interior of the polygonal prism 0410 and the B filter media receiving section 0420 can be used to accommodate filter media. The polygonal prism can be tetrahedral, pentahedral, or hexahedral; the number of B filter media receiving sections can be set according to the number of faces of the polygonal prism, so as to accommodate as much filter media as possible and increase the contact area between the filter media and the liquid to be filtered.

[0081] like Figure 5 The diagram shows the M1 filter device. The M1 receiving cavity is a cylinder 0510, and the side wall of the M1 receiving cavity is covered with a filter media receiving part 0520. Both the interior of the cylinder 0510 and the filter media receiving part 0520 can be used to hold filter media.

[0082] like Figure 6 and Figure 7 In one embodiment of a liquid-liquid separation device, the connecting kit is a hollow cylinder 0610, which includes multiple through holes, and the B1 receiving cavity communicates with the outside through these through holes. Figure 6 and Figure 7 The aforementioned M1 filter device includes one or more filter elements 0620, which cover the one or more through holes. In some embodiments not shown in the accompanying drawings, the aforementioned M1 filter device has an annular structure, and the aforementioned M1 filter device covers multiple through holes on the hollow cylinder of the aforementioned connecting kit.

[0083] like Figure 3 and Figure 8 In one embodiment of a liquid-liquid separation device, an outlet OD3 is further included, and the top of the aforementioned connecting kit includes a liquid outlet K1, which is connected to the outlet OD3.

[0084] Outlet OD3 is used for oil discharge; outlet OD1 can also be used to discharge suspensions, such as oil, and outlet OD1 can also be used for venting.

[0085] Figure 9 In one embodiment of a liquid-liquid separation device, the horizontal cross-section of the A1 cavity is circular, the inlet ID1 is connected to the liquid inlet pipe, and the liquid inlet pipe is perpendicular to the radius of the circle.

[0086] like Figures 1 to 3 In one embodiment of a liquid-liquid separation device, the N inlet 0111 includes multiple openings, the diameter of which is less than one-fifth of the diameter of the conductive pipe.

[0087] like Figure 2 In one embodiment of a liquid-liquid separation device, a filter kit 0210 is further included, which is sleeved on the conductive tube and covers the N inlet.

[0088] like Figure 3 and Figure 7 In one embodiment of a liquid-liquid separation device, a baffle cylinder 0310 is further included. The baffle cylinder includes a central through hole. The bottom of the baffle cylinder is connected to the bottom of the A1 cavity. One end of the guide tube passes through the central through hole and extends into the A1 cavity. The upper part of the baffle cylinder is in communication with the A1 cavity.

[0089] like Figure 7 In one embodiment of a liquid-liquid separation device, a drain outlet OD5 is further included, which is connected to the bottom of the A1 cavity; the drain outlet OD5 is used to discharge the deposited dirt at the bottom of the A1 cavity.

[0090] like Figure 7 In one embodiment of a liquid-liquid separation device, an outlet OD2 is further included; the outlet OD2 is connected to the A2 cavity and is used for the processed liquid to flow out of the A2 cavity; the outlet OD2 is located at the bottom of the A2 cavity; the outlet OD1 is located at the top of the A2 cavity; and the outlet OD2 is used for drainage.

[0091] like Figures 8 to 10 In one embodiment of a liquid-liquid separation device, a support assembly is further included, which is connected to the bottom of a receiving assembly. The support assembly includes a support pipe that communicates with cavity A1, and a drain outlet OD5 is disposed on the support pipe and communicates with the support pipe. The support assembly includes multiple support pipes 0820, and each support pipe 0820 is provided with a corresponding drain outlet OD5.

[0092] like Figures 10 to 11 In one embodiment of a liquid-liquid separation device, the guide tube is a hollow rotating shaft, and a mechanical seal device A 1020 is provided on the hollow rotating shaft. The mechanical seal device A is used to achieve a metal-sealed connection with an external power device.

[0093] like Figure 15 and Figure 16 This is a connection diagram of a mechanical seal device. The mechanical seal device can also be other mechanical seal devices existing in the art. For example... Figure 15 The packing area is primarily used for sealing. For example... Figure 16 The designations 1610 and 1620 are also structural components used for sealing.

[0094] like Figures 10 to 11 One embodiment of an extraction apparatus includes the aforementioned liquid-liquid separation device. The upper part of the aforementioned connecting kit includes a K1 liquid outlet, which is connected to an outlet OD3.

[0095] like Figures 10 to 11In one embodiment of a centrifugal extraction apparatus, the apparatus includes the extraction apparatus described above; it also includes a drive device 1010, which is mechanically connected to the conductive tube 1050, and a power drive device that drives the conductive tube to rotate.

[0096] like Figures 10 to 11 In one embodiment of a centrifugal extraction apparatus, an extractant mixing device 1060 is further included, which is installed on the inlet ID1. The extractant mixing device 1060 includes an extractant inlet 1061, a water inlet 1062, and a spray plate 1063. The extractant inlet is used for the entry of the extractant, and the extractant inlet and the water inlet are arranged opposite to each other. The spray plate is arranged on one side of the extractant inlet for guiding the flow and dispersing the extractant after it enters. The extractant enters from the extractant inlet 1061 and passes through the spray plate 1063. The thickness of the spray plate 1063 and the diameter of the guide holes on the spray plate can be selected and set according to the different extractants used. External water enters the extractant mixing device 1060 from the water inlet 1062. The extractant and water are fully mixed in the extractant mixing device 1060, and the droplet diameter is reduced to the target range, such as 50-300 micrometers, to achieve precise distribution and mixing of the two phases before entering the A1 cavity from the inlet ID1.

[0097] like Figures 10 to 11 In one embodiment of a centrifugal extraction apparatus, a blade assembly is further included; a plurality of blade assemblies 1070 are mounted on a guide tube, i.e., a hollow rotating shaft, and the blade assembly is located in the A1 cavity.

[0098] like Figures 12 to 15 In one embodiment of a centrifugal extraction apparatus, there are an inlet ID1, an outlet OD1, an outlet OD2, a power unit 1250, and a mechanical seal device A 1260. Outlet OD2 communicates with cavity A2 and is used for the processed liquid to flow out of cavity A2; outlet OD2 is located at the bottom of cavity A2; outlet OD1 is located at the top of cavity A2. The guide tube is a hollow rotating shaft, and the mechanical seal device A 1260 is installed on the hollow rotating shaft. The mechanical seal device A 1260 is used to achieve a metal-sealed connection with the power unit 1250.

[0099] like Figures 12 to 15 In one embodiment of a centrifugal extraction apparatus, the support assembly includes four support pipes 1320, which are connected to the A2 cavity. The drain outlet OD5 is disposed on the support pipe and is connected to the support pipe.

[0100] like Figures 12 to 15In one embodiment of a centrifugal extraction apparatus, a connecting kit 1410 and a plurality of M1 filter devices 1420 are included; the connecting kit includes a B1 receiving cavity 1510; the M1 filter devices include M1 receiving cavities 1520; the B1 receiving cavity 1510 and the M1 receiving cavity 1520 are in communication.

[0101] like Figures 11 to 15 In one embodiment of a centrifugal extraction apparatus, a blade 1550 is provided on a guide tube 1560; the blade 1550 is installed on the guide tube 1560 and is located in the A1 cavity.

[0102] like Figure 18 In one embodiment of a centrifugal extraction apparatus, there are an inlet ID1, an outlet OD1, an outlet OD2, a power unit (motor 1850), and a hollow rotating shaft 1870. A mechanical seal 1860 is installed on the hollow rotating shaft, which is used to achieve a metal-sealed connection with the power unit 1850. Outlet OD2 communicates with cavity A2 and is used for the processed liquid to flow out of cavity A2. Outlet OD2 is located at the bottom of cavity A2, and outlet OD1 is located at the top of cavity A2. Figure 18 The outlet OD1 can also be configured with multiple outlets, such as outlet OD11, outlet OD12, and outlet OD13, which can be used to discharge water, oil, and gas respectively. The specific settings can be configured according to actual application requirements.

[0103] like Figure 18 In one embodiment of a centrifugal extraction apparatus, a connecting kit 1810 and a plurality of M1 filter devices 1820 are included; the connecting kit includes a B1 receiving cavity; the M1 filter devices include M1 receiving cavities; the B1 receiving cavities are in communication with the M1 receiving cavities.

[0104] like Figure 18 In one embodiment of a centrifugal extraction apparatus, a blade assembly is further included; blades 1890 of the blade assembly are mounted on a guide tube 1870 and are located in cavity A1.

[0105] like Figure 18In one embodiment of a centrifugal extraction apparatus, an extractant mixing device is further included, which is installed on inlet ID1. The extractant mixing device includes an extractant inlet 1831, a water inlet 1833, and a spray plate 1832. The extractant inlet is used for the entry of the extractant, and the extractant inlet and the water inlet are arranged opposite to each other. The spray plate is arranged on one side of the extractant inlet for guiding the flow and dispersing the extractant after it enters. The extractant enters from the extractant inlet 1831 and passes through the spray plate 1832, which has a thickness of 20 mm and a flow guide hole diameter of 1 mm. External water enters the extractant mixing device from the water inlet 1831. The extractant and water are fully mixed in the extractant mixing device, and the droplet diameter is reduced to 50-300 micrometers, achieving precise distribution and mixing of the two phases before entering the A1 chamber from inlet ID1.

[0106] like Figure 19 The schematic diagram shows the M1 filter device. The M1 receiving cavity is a polygonal prism, with each sidewall protruding outward to form a B filter media receiving section 1920. Both the interior of the polygonal prism and the B filter media receiving sections 1920 can be used to accommodate filter media. The polygonal prism is pentahedral, with five B filter media receiving sections arranged on it to maximize the amount of filter media it can hold, increasing the contact area between the filter media and the liquid to be filtered. Through holes are provided on the surfaces of the B filter media receiving sections that connect to the outside. The bottom of the M1 filter device communicates with the outside through threaded holes 1930, facilitating assembly and maintenance.

[0107] like Figure 20 and Figure 21 The 2020 connection kit is connected to six M1 filter units 2010, all of which are pentahedral.

[0108] like Figure 18 The top of the conduit 1870 is also equipped with a pipe cap. The pipe cap is as follows: Figure 22 As shown, a through hole 2210 is provided in the center, and outward protrusions 2220 are evenly provided along the edge; Figure 23 Yes, after the pipe cap is put on, Figure 18 A cross-sectional view of part C in the middle, as shown below. Figure 23 The pipe cover covers the N outlet at the top of 2310, so that the liquid output from the N outlet presents an upward tangential fan-shaped fluid state, thereby further enhancing the oil-water separation effect.

[0109] In one embodiment of a centrifugal extraction method, based on the above-mentioned centrifugal extraction device; the spray plate 1832 has a thickness of 20 mm and a guide hole diameter of 1 mm; the droplet diameter input to the inlet ID1 is in the range of 50 micrometers to 300 micrometers; the speed range of the drive device driving the guide tube to rotate is 500 revolutions per minute to 1500 revolutions per minute.

[0110] The centrifugal extractor in this application has a core structure that can be divided into multiple modules, each of which is precisely designed to achieve efficient separation of liquid and liquid phases.

[0111] Structurally, a hollow rotating drum system, i.e. a hollow guide tube, is designed. The guide tube can be both a channel for liquid flow and a shaft for motor rotation, thus resulting in higher rotation efficiency.

[0112] Structurally, a separate power core is designed, with the power unit, namely the motor 1850, located on the outside of the entire main body for easy replacement and maintenance.

[0113] Structurally, a transmission system was designed to achieve precise control of power transmission; such as Figure 16 and Figure 17 As shown, the transmission system consists of a motor, a gearbox, and a coupling. It is responsible for stably transmitting motor power to the hollow rotating drum, optimizing the separation process. The gearbox uses gears to reduce speed and increase torque, ensuring the stability of the drum at high speeds. The coupling acts as a buffer and damper, preventing damage to the equipment from impacts during power transmission.

[0114] The extractant and water are thoroughly mixed in the extractant mixing device 1830, reducing the droplet diameter to 50-300 micrometers. This achieves precise distribution and mixing of the two phases before the materials enter the A1 chamber through inlet ID1. The feeding system is designed to achieve precise distribution of the two phases. The feeding system consists of two inlets: one for the extractant or the other for the oil. A spray plate is used to ensure thorough mixing of the extractant and the adjusting water, reducing the droplet diameter to 50-300 micrometers, thus achieving precise distribution and mixing of the two phases.

[0115] The separation system in this application typically employs a multi-stage separation space design. Based on the characteristics of centrifugal extraction, it optimizes power transmission and fluid dynamics design, adopting a multi-stage synergistic separation mechanism. After the two-phase materials enter from the inlet, they pass through a small flow gap on a spray plate, reducing the droplet diameter to 50-300 micrometers, which better mixes the two phases and improves the extraction rate. They then enter the hollow rotating shaft, i.e., the guide tube. Through the rotation and pressure of the hollow rotating shaft, the mixture of the two phases forms a fan-shaped opening from the center of the hollow rotating shaft, with the oil phase in the center and the water phase on the outside. This regular process allows for rapid stratification and discharge of the two phases, achieving the first vortex-induced oil separation. The separated oil is discharged through the oil collection chamber, while the water phase enters a specially designed nano-carbon-based filter element through a six-claw water pipe under the outer weir of the rotating shaft to separate the remaining oil. The water phase then flows out from the outlet pipe, achieving continuous separation operation with a suspended solids removal rate >98%. The filter ensures that the organic matter content in the effluent is <5ppm.

[0116] The separation system in this application can employ a control system for intelligent operation. The centrifugal extractor is equipped with a PLC control system, integrating sensors, actuators, and parameters such as two-phase liquid inlet. The actuators adjust the feed flow rate and rotation speed according to a preset program. The working process of the centrifugal extractor can be divided into three stages: mixing, mass transfer, and separation. Each stage achieves efficient separation through the synergistic effect of centrifugal force field and fluid dynamics, enabling 24-hour uninterrupted operation. The centrifugal extractor of this application achieves a breakthrough in liquid-liquid extraction technology through structural innovation and principle optimization.

[0117] The above description is merely an embodiment of the present invention and does not limit the scope of the present invention. Any equivalent structural or procedural transformations made based on the description and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of protection of the present invention.

Claims

1. A liquid-liquid separation device, characterized in that, This includes the housing assembly, the conduit, the inlet ID1, the outlet OD1, and the filter assembly; The housing assembly includes cavity A1 and cavity A2; The conduit connects cavity A1 and cavity A2; One end of the connecting tube is located in cavity A1, and the other end of the connecting tube is located in cavity A2; The conduit contains a channel for liquid flow, and the conduit located in cavity A1 includes an N inlet, which is connected to the channel. The conduit located at one end of cavity A2 includes an N liquid outlet, which is connected to the channel. The inlet ID1 is connected to the A1 cavity and is used for the liquid to be treated to enter the A1 cavity; The outlet OD1 is connected to the A2 cavity, allowing the treated liquid to flow out of the A2 cavity; The filter assembly includes a connecting kit and a filter device, and the connecting kit and the filter device are connected. The filter assembly is disposed in the A2 cavity; The connection kit includes a B1 receiving cavity, and the conductive tube communicates with the B1 receiving cavity; The filtration device includes filter media with a nano-modified surface, which is used to collect and float tiny oil particles in the liquid. The connecting kit is a hollow cylinder with multiple through holes, and the B1 receiving cavity is connected to the outside through the through holes; the filter device is a ring structure and covers the through holes. Alternatively, the connecting kit may be a hollow cylinder with multiple through holes, and the filtering device may include one or more filter plates covering the one or more through holes.

2. The liquid-liquid separation device according to claim 1, characterized in that, The filtration device includes a receiving cavity M1, and the receiving cavity B1 is connected to the receiving cavity M1; The M1 receiving cavity is a multi-faceted prism, and each side wall of the M1 receiving cavity protrudes outward to form the B filter media receiving part; Alternatively, the M1 receiving cavity may be cylindrical, with the C filter material receiving section wrapped around the side wall of the M1 receiving cavity.

3. The liquid-liquid separation device according to claim 1, characterized in that, It also includes any one of the following technical features: TB1: It also includes an outlet OD3, and the top of the connection kit includes a K1 liquid outlet, which is connected to the outlet OD3; TB2: The horizontal cross-section of the A1 cavity is circular, and the inlet ID1 is connected to the liquid inlet pipe, which is perpendicular to the radius of the circle; TB3: The N inlet includes multiple openings, the diameter of which is less than one-fifth of the diameter of the conductive tube; TB4: also includes a filter kit, which is fitted onto the guide tube and covers the N inlet; TB5: also includes a enclosure tube, which includes a central through hole. The bottom of the enclosure tube is connected to the bottom of the A1 cavity. One end of the guide tube passes through the central through hole and extends into the A1 cavity. The upper part of the enclosure tube is connected to the A1 cavity. TB6: also includes a drain outlet OD5, which is connected to the bottom of the A1 cavity; TB7: also includes outlet OD2; outlet OD2 is connected to cavity A2 and is used for the treated liquid to flow out of cavity A2; outlet OD2 is located at the bottom of cavity A2; outlet OD1 is located at the top of cavity A2; TB8: also includes a support assembly, which is connected to the bottom of the receiving assembly; the support assembly includes a support pipe, which is connected to the A1 cavity, and a drain outlet OD5 is provided on the support pipe and is connected to the support pipe.

4. The liquid-liquid separation device according to claim 1, characterized in that, The guide tube is a hollow rotating shaft, and a mechanical seal device A is installed on the hollow rotating shaft. The mechanical seal device A is used to achieve a metal-sealed connection with the external power device.

5. An extraction apparatus, characterized in that, include, The liquid-liquid separation device according to any one of claims 1 to 4.

6. The extraction apparatus according to claim 5, characterized in that, It also includes an extractant mixing device, which is installed on the inlet ID1; The extractant mixing device includes an extractant inlet, a water inlet, and a spray plate. The extractant inlet is used for the extractant to enter, and the extractant inlet and the water inlet are arranged opposite to each other. The spray plate is arranged on one side of the extractant inlet and is used for guiding the flow and dispersing the extractant after it enters.

7. A centrifugal extraction apparatus, characterized in that, include, The extraction apparatus according to any one of claims 5 to 6 further includes a driving device, the driving device being mechanically connected to the conductive tube, and the power driving device being used to drive the conductive tube to rotate.

8. The centrifugal extraction apparatus according to claim 7, characterized in that, It also includes a blade assembly; the blades of the blade assembly are mounted on a guide tube, which is a hollow rotating shaft, and the blade assembly is located in cavity A1.

9. A centrifugal extraction method, characterized in that, Based on the centrifugal extraction apparatus according to claim 7; The spray plate is 20 mm thick and the guide hole diameter is 1 mm; the droplet diameter range input to the inlet ID1 is 50 micrometers-300 micrometers; The speed range of the drive device driving the conductor to rotate is 500 revolutions per minute to 1500 revolutions per minute.

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