A centrifugal extractor and a centrifugal extraction system

Abstract

This application relates to a centrifugal extractor and a centrifugal extraction system, belonging to the field of extraction technology. The centrifugal extractor includes a housing and a transmission assembly. A slag discharge port is provided on the housing. The transmission assembly is disposed within the housing and includes a first transmission component and a second transmission component. The first transmission component includes a rotating shaft and a rotating drum. The rotating shaft is rotatably mounted within the housing, and the rotating drum is mounted on the rotating shaft. A gap is formed between the rotating drum and the rotating shaft, and a first impeller is disposed within the gap. The second transmission component includes a hollow shaft and a separation section. The hollow shaft is rotatably mounted within the housing and sleeved outside the rotating shaft. The separation section is disposed within the rotating drum and located at one end of the hollow shaft. A scraping element is also spirally wound on the hollow shaft. The centrifugal extractor of this application can scrape off solid impurities and flocculent matter generated during the separation process from the rotating drum. This allows the centrifugal extractor of this application to be used continuously, effectively avoiding the accumulation of solid impurities or flocculent matter.

Description

Technical Field

[0001] This application relates to the field of extraction technology, and more specifically, to a centrifugal extractor and a centrifugal extraction system. Background Technology

[0002] A centrifugal extractor is a new type of liquid-liquid extraction device that operates based on the principle of efficient drum rotation. Its principle is to separate the components in a mixture through centrifugal force.

[0003] Centrifugal extractors are typically only used for the extraction and separation of liquid materials. However, when the liquid contains solid impurities, or when a mixture of different liquid materials produces solid impurities, these solid impurities or flocculent matter will inevitably accumulate in the centrifugal extractor during the centrifugal separation process. This necessitates periodic disassembly and cleaning, which affects the continuous operation of the equipment. Utility Model Content

[0004] In order to at least address some of the deficiencies mentioned in the related technologies, this application provides a centrifugal extractor and a centrifugal extraction system.

[0005] To achieve the above objectives, this application provides a centrifugal extractor, including a housing and a transmission assembly. The housing has a slag discharge port. The transmission assembly is disposed within the housing and includes a first transmission component and a second transmission component. The first transmission component includes a rotating shaft and a rotating drum. The rotating shaft is rotatably mounted within the housing, and the rotating drum is mounted on the rotating shaft. A mounting cavity is formed between the rotating drum and the rotating shaft, and a first impeller is disposed within the mounting cavity. The second transmission component includes a hollow shaft and a separating portion. The hollow shaft is rotatably mounted within the housing and sleeved outside the rotating shaft. The separating portion is disposed within the rotating drum and located at one end of the hollow shaft. A speed difference exists between the first transmission component and the second transmission component. A scraper is also spirally wound around the hollow shaft, with its edge extending close to the inner wall of the rotating drum. A gap for discharging impurities is formed on the rotating drum, and the gap is located near the slag discharge port.

[0006] Furthermore, the rotational speed of the first transmission component is V1, and the rotational speed of the second transmission component is V2, satisfying: 0.9≤V1 / V2<1 or 1<V1 / V2≤1.1.

[0007] Furthermore, the first impeller is disposed at one end of the rotating shaft, and after the hollow shaft is sleeved on the rotating shaft, the first impeller extends at least partially outside the hollow shaft.

[0008] Furthermore, a second impeller is disposed on the hollow shaft, and the second impeller is disposed on the inner wall of the hollow shaft, close to the first impeller. A gap is provided between the first impeller and the second impeller.

[0009] Furthermore, the drum includes a separation section and a slag discharge section. The separation section is cylindrical and located at one end of the hollow shaft. The slag discharge section is conical and located on the separation section, facing the first impeller.

[0010] Furthermore, the scraping element includes helical blades wound around the hollow shaft to scrape out impurities present on the inner wall of the drum and convey them to the slag discharge port. The helical blades extend from a position near the gap in the slag discharge section in a direction away from the first impeller and extend into the separation section.

[0011] Furthermore, a guide plate is provided inside the shell, which is located on the inner wall of the shell near the slag discharge port, for guiding the discharged solid impurities.

[0012] Furthermore, the guide plate is arranged in a ring on the inner wall of the shell, and the cross-section of the guide plate is an inclined plate. One end of the guide plate extends into the gap, and the other end of the guide plate away from the gap extends into the slag discharge port.

[0013] Furthermore, a filling plate is provided on the side of the guide plate near the slag discharge port. The filling plate extends from the guide plate toward the housing and extends horizontally, abutting against the inner wall of the housing.

[0014] Furthermore, the first transmission component includes a first power component, which is disposed at one end of the housing and is used to drive the first impeller to rotate. The second transmission component includes a second power component, which is disposed at the end of the housing away from the first power component and is used to drive the drum to rotate.

[0015] Furthermore, a third power component and a differential are provided outside the housing. The output end of the third power component is connected to the differential, the first output end of the differential is connected to the first transmission component, and the second output end of the differential is connected to the second transmission component.

[0016] Furthermore, a storage bin is provided inside the housing near the first impeller, and at least two inlets communicating with the storage bin are formed on the housing. A baffle plate is provided inside the storage bin.

[0017] Furthermore, a first discharge port and a second discharge port are provided on the housing near the separation part, with the first discharge port located below the second discharge port in the vertical direction.

[0018] This application also provides a centrifugal extraction system, including a frame and a centrifugal extractor as described in any of the above embodiments. At least two centrifugal extractors are mounted on the frame, and the materials in adjacent centrifugal extractors are in communication.

[0019] Through the above technical solution, during material extraction, the material is introduced into the shell. The rotating shaft in the first transmission component rotates, driving the drum and the first impeller to rotate. The first impeller can deliver the material into the drum. The hollow shaft in the second transmission component rotates, driving the separation section to rotate, separating the material introduced into the drum. During the separation process, solid impurities and flocculent matter in the material are thrown out onto the inner wall of the drum by the separation section under the action of centrifugal force. Due to the speed difference between the first and second transmission components, the scraping parts on the hollow shaft will rotate relative to the drum, thereby scraping off the solid impurities and flocculent matter on the inner wall of the drum and scraping them to the gaps, from which they are discharged to the outside of the first transmission component and then discharged to the outside of the shell from the slag discharge port.

[0020] The extraction machine of this application, due to the speed difference between the scraper and the rotating drum, allows the scraper to remove solid impurities and flocculent matter generated during the separation process from the rotating drum. This enables the extraction machine to be used continuously, effectively avoiding the accumulation of solid impurities or flocculent matter, and eliminating the need for periodic cleaning or shutdown maintenance of the filtration device. Simultaneously, it reduces the problems of abnormal phase separation and increased vibration caused by impurity accumulation in the extraction machine, thus improving the stability of the extraction machine.

[0021] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the centrifugal extractor provided in an embodiment of this application from one perspective.

[0024] Figure 2 A schematic diagram of the first rotating component of the centrifugal extraction structure provided in an embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the second rotating component of the centrifugal extraction structure provided in an embodiment of this application.

[0026] icon:

[0027] 100-First transmission component; 110-Rotating shaft; 120-Rotating drum; 121-Mounting cavity; 122-First impeller; 123-Separation section; 124-Slag discharge section; 130-Gap; 140-Slag discharge port; 150-Storage bin; 151-Feed inlet; 152-Vortex baffle plate; 160-First discharge port; 170-Second discharge port; 200-Second transmission component; 210-Separation section; 220-Hollow shaft; 221-Connecting port; 222-Second impeller; 300-Scraping component; 310-Helical blade; 410-Guide plate; 420-Filling plate; 510-First power component; 520-Second power component. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] This application provides an extraction machine to solve the problems mentioned in the related art, such as the filtration device being blocked by solid impurities or flocculent matter, resulting in continuous slag discharge and easy malfunction of the equipment.

[0032] Please see Figures 1 to 3This application provides a centrifugal extractor, including a housing and a transmission assembly. The housing has a slag discharge port 140. The transmission assembly is disposed within the housing and includes a first transmission member 100 and a second transmission member 200. The first transmission member 100 includes a rotating shaft 110 and a rotating drum 120. The rotating shaft 110 is rotatably mounted within the housing, and the rotating drum 120 is mounted on the rotating shaft 110. A mounting cavity 121 is formed between the rotating drum 120 and the rotating shaft 110, and a first impeller 122 is disposed within the mounting cavity 121. The second transmission member 200 includes a hollow shaft 220 and a separating portion 210. The hollow shaft 220 is rotatably mounted within the housing and sleeved outside the rotating shaft 110. The separating portion 210 is disposed within the rotating drum 120 and located at one end of the hollow shaft 220. A speed difference exists between the first transmission member 100 and the second transmission member 200. A scraper 300 is spirally wound on the hollow shaft 220. The edge of the scraper 300 extends to a position close to the inner wall of the drum 120. A gap 130 for discharging impurities is opened on the drum 120. The gap 130 is located near the slag discharge port 140.

[0033] Specifically, in this embodiment, the material to be extracted is introduced into the housing. The rotating shaft 110 in the first transmission member 100 rotates, driving the rotating drum 120 and the first impeller 122 to rotate. The first impeller 122 can deliver the material into the rotating drum 120. The hollow shaft 220 in the second transmission member 200 rotates, driving the separation section 210 to rotate. The separation section 210 separates the material introduced into the rotating drum 120. During the separation process, any solid impurities and flocculent matter that may be present in the material will be thrown out by the separation section 210 onto the inner wall of the rotating drum 120. When the hollow shaft 220 rotates, it will also drive the scraper 300 to rotate synchronously. There is a speed difference between the first transmission component 100 and the second transmission component 200, that is, there is a speed difference between the scraper 300 and the drum 120. In this way, the scraper 300 will gradually scrape off the solid impurities and flocculent matter adhering to the inner wall of the drum 120 and scrape them to the gap 130 and discharge them from the drum 120. The solid impurities and flocculent matter discharged to the outside of the drum 120 are discharged to the outside of the shell through the slag discharge port 140.

[0034] In this embodiment, by utilizing the speed difference between the scraper 300 and the rotating drum 120, solid impurities and flocculent matter ejected during the separation process from the inner wall of the rotating drum 120 can be scraped off and discharged outside the rotating drum 120 through the gap 130, and then discharged to the outside of the shell through the slag discharge port 140. In other words, the extractor of this embodiment can continuously discharge solid impurities from the material to the outside of the shell without stopping operation. This eliminates the need for periodic shutdowns for cleaning or unclogging, improving the extraction efficiency of this embodiment. Furthermore, the extractor will not experience shaking or abnormal noise due to the accumulation of solid impurities or flocculent matter during operation, improving the stability of this embodiment.

[0035] In one embodiment, for example, the rotational speed of the first transmission member 100 is V1, and the rotational speed of the second transmission member 200 is V2, satisfying: 0.9 ≤ V1 / V2 < 1 or 1 < V1 / V2 ≤ 1.1. Specifically, the rotational speed of the first transmission member 100 is different from that of the second transmission member 200, but the difference in rotational speed is not significant. That is, the rotational speeds of the first impeller 122 and the drum 120 are not significantly different. This allows the first impeller 122 to continuously lift the liquid material while the drum 120, in cooperation with the first impeller 122, discharges solid impurities to the slag discharge port 140.

[0036] By limiting the range of V1 / V2, an appropriate speed difference can be ensured between the scraper 300 and the drum 120, thereby effectively throwing impurities in the material from the gap 130 to the slag discharge port 140. At the same time, an excessively large speed difference is avoided; if the speed difference is too large, such as V1 / V2 < 0.9 or V1 / V2 > 1.1, it may lead to energy waste or cause additional mechanical stress on the equipment. A speed difference within this range satisfies the slag discharge requirements while reducing unnecessary energy consumption. Furthermore, limiting the speed ratio within a reasonable range can reduce mechanical impact and friction between the scraper 300 and the drum 120, reducing vibration generated by the extractor during operation, thereby extending the service life of the transmission components and improving the stability of this embodiment.

[0037] For example, in actual use of the extraction machine, the rotation speed of the scraper 300 can be set to 3500 revolutions per minute, and correspondingly, the rotation speed of the drum 120 can be set to about 3505 revolutions per minute to achieve the slag discharge function of this embodiment.

[0038] In one embodiment, exemplarily, such as Figures 1 to 3 As shown, the first impeller 122 is disposed at one end of the rotating shaft 110. After the hollow shaft 220 is sleeved on the rotating shaft 110, the first impeller 122 extends at least partially outside the hollow shaft 220. The first impeller 122 extending outside the hollow shaft 220 ensures stable contact between the first impeller 122 and the material, and when the first impeller 122 rotates, it stably and continuously feeds the material into the rotating drum 120.

[0039] Furthermore, the first impeller 122 extends at least partially outside the hollow shaft 220. During assembly, the hollow shaft 220 and the first impeller 122 can serve as positioning references for each other, reducing assembly difficulty. After assembly, the first impeller 122 is partially inserted into the material and partially protected by the hollow shaft 220, extending the service life of the first impeller 122.

[0040] In one embodiment, exemplarily, such as Figure 2As shown, a second impeller 222 is disposed on the hollow shaft 220, and the second impeller 222 is disposed on the inner wall of the hollow shaft 220, close to the first impeller 122. A gap is provided between the first impeller 122 and the second impeller 222. When the hollow shaft 220 rotates, the second impeller 222 will rotate accordingly. The material fed into the hollow shaft 220 by the first impeller 122 will continue to be conveyed into the drum 120 by the second impeller 222 when it comes into contact with the second impeller 222, so as to ensure the conveying effect of the material.

[0041] Of course, the first impeller 122 and the second impeller 222 will also premix the material during the material conveying process. Based on this, as long as the material can be stably and continuously conveyed to the separation position, different numbers of second impellers 222 can be adaptively set according to the different premixing intensities required by different materials to achieve premixing of materials with different intensities.

[0042] In one embodiment, exemplarily, such as Figure 1 , Figure 2 As shown, the drum 120 includes a separation section 123 and a slag discharge section 124. The separation section 123 is cylindrical and located at one end of the hollow shaft 220. The slag discharge section 124 is conical and located on the separation section 123 facing the first impeller 122. The cylindrical shape of the separation section 123 provides a large effective working area, allowing the material to mix and separate fully, ensuring efficient extraction. Specifically, the conical feed tube, non-perforated discs, and other structures required for extraction are all located in the separation section 123, enabling the liquid phase material to mix and separate normally, completing the extraction. Furthermore, the cylindrical structure helps to form a stable flow field, reducing the impact of turbulence on the separation effect, thereby improving separation accuracy.

[0043] The conical shape of the slag discharge section 124 guides impurities to concentrate in the gap 130 between the first impeller 122 and the drum 120, making it easier for the impurities to be thrown out to the slag discharge port 140. Understandably, the conical design makes it easier for impurities to move outward along the inclined surface under the action of centrifugal force to the gap 130 between the first impeller 122 and the drum 120, thereby improving the slag discharge speed and efficiency.

[0044] Furthermore, the different shapes of the separation section 123 and the slag discharge section 124 can reasonably distribute the load borne by the drum 120 during operation and avoid local stress concentration. The combined design of the cylindrical separation section 123 and the conical slag discharge section 124 can reduce vibration and noise caused by irregular shapes, further improving the service life and stability of this embodiment.

[0045] In one embodiment, exemplarily, such as Figure 1 , Figure 3As shown, the scraping component 300 includes a spiral blade 310, which is wound around the hollow shaft 220 to convey solid impurities present in the material to the slag discharge port 140. The spiral blade 310 extends from the slag discharge section 124 near the gap 130 in a direction away from the first impeller 122 and extends into the separation section 123. The spiral blade 310 can scrape solid impurities from the inner wall of the drum 120 by rotation and gradually convey them to the slag discharge port 140, ensuring thorough removal and reducing residue.

[0046] It is understandable that by controlling the rotation direction of the spiral blade 310, the spiral blade 310 can continuously transport the scraped impurities after scraping solid impurities and flocculent matter from the inner wall of the drum 120, until the impurities are transported to the gap 130 on the drum 120, and then thrown out of the drum 120 from the gap 130 under the action of centrifugal force.

[0047] Furthermore, in this embodiment, the hollow shaft 220 has a communication port 221 that communicates with the separation section 210. During material transport, the material is conveyed through the interior of the hollow shaft 220 to the communication port 221, and then enters the separation section 210 for separation. Impurities are transported directly outside the hollow shaft 220. In other words, in actual use, the material will not come into contact with impurities, further ensuring the extraction effect and impurity removal capability of this embodiment.

[0048] In one embodiment, exemplarily, such as Figure 1 As shown, a guide plate 410 is provided inside the housing. The guide plate 410 is located on the inner wall of the housing near the slag discharge port 140 and is used to guide the discharged solid impurities. The guide plate 410 can smoothly guide the solid impurities discharged from the gap 130 of the drum 120 to the slag discharge port 140, avoiding the accumulation of impurities near the gap 130 and affecting the normal operation of this embodiment. In addition, through the directional guiding effect of the guide plate 410, the accumulation or backflow of solid impurities between the gap 130 and the slag discharge port 140 can be effectively prevented, reducing the possibility of blockage.

[0049] Please continue reading. Figure 1For example, the guide plate 410 is arranged in a ring on the inner wall of the housing, and the cross-section of the guide plate 410 is an inclined straight plate. One end of the guide plate 410 extends to the gap 130, and the other end of the guide plate 410 away from the gap 130 extends to the slag discharge port 140. The guide plate 410 extends from the gap 130 to the slag discharge port 140, which can guide the discharge path of solid impurities throughout the entire process, ensuring that the impurities flow smoothly from the gap 130 to the slag discharge port 140. The ring-shaped design of the guide plate 410 allows it to cover the entire slag discharge area inside the housing, preventing solid impurities from accumulating on the inner wall of the housing or near the gap 130, further reducing residue. In addition, the ring-shaped design can also enhance the structural strength inside the housing and improve the overall stability of the equipment.

[0050] The inclination and length of the guide plate 410 can be arbitrarily set according to the actual needs of use. In this embodiment, there is no limitation, as long as the guide plate 410 can smoothly guide solid impurities to the slag discharge port 140.

[0051] In one embodiment, exemplarily, such as Figure 1 As shown, a filler plate 420 is also provided on the side of the guide plate 410 near the slag discharge port 140. The filler plate 420 extends from the guide plate 410 towards the shell, extending horizontally and abutting against the inner wall of the shell. Thus, solid impurities thrown towards the slag discharge port 140, after falling onto the guide plate 410, will slide to the slag discharge port 140 under the action of the guide plate 410 and be discharged to the outside of the shell. Some solid impurities that do not exit from the slag discharge port 140 will slide onto the filler plate 420 and gradually move along the filler plate 420 to the slag discharge port 140 due to factors such as shell vibration. The filler plate 420 further restricts the slag discharge path to a smaller area, ensuring that solid impurities can only be discharged through the slag discharge port 140, preventing impurities from scattering into other areas.

[0052] The filler plate 420 in this embodiment can effectively prevent the ejected solid impurities from falling back into the liquid phase material, ensuring that the slag discharge effect of this embodiment is stable and reliable.

[0053] In one embodiment, exemplarily, such as Figure 1As shown, the first transmission component 100 includes a first power component 510, which is disposed at one end of the housing and is used to drive the first impeller 122 to rotate. The second transmission component 200 includes a second power component 520, which is disposed at the end of the housing away from the first power component 510 and is used to drive the drum 120 to rotate. The first power component 510 and the second power component 520 drive the first impeller 122 and the drum 120 respectively, which can more precisely control the speed difference between the two and ensure that the relative motion between the first impeller 122 and the drum 120 meets the process requirements. By driving with independent power sources, the mutual interference problems that may be caused by a single power source are avoided, and the reliability of the transmission system is improved.

[0054] By placing the first power component 510 and the second power component 520 at opposite ends of the housing, the dynamic load during equipment operation can be effectively distributed, preventing vibration or deformation caused by concentrated forces. This arrangement also makes the overall mass and power output of the equipment more balanced, improving the stability of the overall structure. Furthermore, distributing the power components at both ends of the housing effectively disperses the heat generated during operation, reducing the risk of localized overheating and extending the equipment's service life.

[0055] It should be noted that both the first power component 510 and the second power component 520 can be equipped with any type or model of motor according to actual operational needs; this embodiment does not impose any restrictions on this. Wireless transmission modules can also be installed on the first power component 510 and the second power component 520 for data exchange with an external control center. The start / stop switches of the first power component 510 and the second power component 520 are electrically connected to the wireless transmission module. Thus, when using this embodiment, the operator can directly control it remotely, making the use of this embodiment more convenient and efficient.

[0056] In one embodiment, for example, a third power component and a differential are disposed outside the housing. The output end of the third power component is connected to the differential, the first output end of the differential is connected to the first transmission component 100, and the second output end of the differential is connected to the second transmission component 200. The differential can distribute power to the two rotating components according to a set ratio and maintain a stable differential relationship between them, which helps to form a clear liquid-liquid interface during the separation process and improves separation purity and efficiency.

[0057] During use, the speed difference between the two rotating components can be flexibly adjusted by replacing the differential with a different speed ratio or adjusting its internal mechanism to adapt to material systems with large differences in viscosity and density, thereby improving the versatility and applicability of the equipment.

[0058] Compared to the two-power-component drive method, this embodiment uses a single-power-component drive with a differential, which not only reduces the number of motors or drivers but also lowers the requirements for the electrical control system and installation space, making the overall structure simpler and more compact. Correspondingly, it reduces coordination and control issues between multiple power units, avoids mechanical conflicts caused by poor synchronization or uneven load, and improves the overall stability and service life of the system.

[0059] In one embodiment, exemplarily, such as Figure 1 As shown, a storage hopper 150 is disposed inside the housing near the first impeller 122, and at least two feed inlets 151 are formed on the housing, connecting to the storage hopper 150. A baffle plate 152 is disposed inside the storage hopper 150. The storage hopper 150 serves as a buffer zone before the material enters the separation structure, effectively mitigating uneven feeding caused by unstable external pumping or flow fluctuations. Together with the first impeller 122 and the second impeller 222, it provides a more stable material supply for subsequent separation operations. Simultaneously, after various materials are introduced into the storage hopper 150 from different feed inlets 151, they undergo preliminary mixing within the storage hopper 150 to facilitate subsequent separation operations.

[0060] The presence of at least two feed inlets 151 on the housing not only improves the redundancy and flexibility of the feeding path but also allows for the simultaneous input of different materials, meeting the needs of complex processes. The multi-feed inlet design 151 helps to uniformly introduce materials into the storage bin 150, avoiding high-velocity impacts caused by a single inlet, thereby reducing interference with subsequent rotating components.

[0061] In a high-speed rotating system, if material enters the storage hopper 150 directly without a guiding structure, eddies can easily form, leading to uneven material distribution and the incorporation of air bubbles. Eddies can also cause air to mix into the material, affecting the clarity of the centrifugal separation interface and the phase separation efficiency. The vortex baffle 152 can disrupt the eddy structure, allowing the material to flow more smoothly into the subsequent conveying channel, reducing the risk of gas-liquid mixing and improving extraction accuracy.

[0062] In one embodiment, exemplarily, such as Figure 1 As shown, a first outlet 160 and a second outlet 170 are provided on the shell near the separation section 210, with the first outlet 160 located vertically below the second outlet 170. During centrifugal extraction, different components in the material to be extracted are separated into a heavy phase and a light phase in the separation section 210. The light phase is conveyed to the first outlet 160 and discharged outside the shell, while the heavy phase is conveyed to the second outlet 170 and discharged outside the shell.

[0063] It should be noted that in this embodiment, a weir plate is vertically arranged inside the shell near the first discharge port 160 and the second discharge port 170. Under the action of centrifugal force, the light phase material will move along the weir plate to the first discharge port 160, while the heavy phase material will move to the second discharge port 170, and will be discharged to the outside of the shell respectively. Of course, any other structure can be set to separate the light phase material and the heavy phase material according to the actual situation, as long as it can meet the requirement of separate discharge in this embodiment.

[0064] If two materials share a single outlet or are improperly positioned, mixing or interface disturbance can easily occur, affecting separation purity. By setting staggered outlet heights, it can be ensured that the two materials are discharged independently without interference, guaranteeing process stability and product quality.

[0065] The slag discharge port 140 on the shell is specifically used to discharge solid impurities and flocculent matter, while the first discharge port 160 and the second discharge port 170 focus on the separation and output of liquid materials. This multi-product zone discharge mechanism avoids impurities from entering the main discharge channel, improving the cleanliness and safety of the system.

[0066] This embodiment also provides a centrifugal extraction system, including a frame and the centrifugal extractor described in any of the above embodiments. The centrifugal extraction system includes at least two centrifugal extractors. For example, the centrifugal extraction system includes a frame with at least two mounting positions, each mounting position housing one of the centrifugal extractors, and the materials in adjacent centrifugal extractors are interconnected. Materials can flow between adjacent centrifugal extractors, and the light or heavy phase material processed by the previous stage can be directly used as feed for the next stage, thereby realizing a multi-stage, sequential purification extraction process, significantly improving the purity and yield of the final product. For materials with similar densities, severe emulsification, high viscosity, or complex compositions, single-stage extraction is difficult to achieve ideal results. Through multi-stage co-processing, efficient separation and enrichment of effective components can be gradually achieved.

[0067] For example, a centrifugal extraction system may include at least three centrifugal extractors, with adjacent centrifugal extractors connected to each other, or the centrifugal extractors may be connected to other centrifugal extractors at intervals.

[0068] It should be noted that the two inlets of the first centrifugal extractor in the centrifugal extraction system can be used to feed the mixed materials. Understandably, the first centrifugal extractor can have only the first inlet open, or a different number of inlets can be set according to actual needs.

[0069] Understandably, centrifugal extractors can operate in parallel to increase throughput per unit time, or in series for high-purity separation, meeting production needs under different operating conditions and enhancing system flexibility and adaptability. Multiple units are centrally arranged on the same frame, resulting in shorter material transport paths and shorter pumping distances, which helps reduce energy consumption, minimize pipeline losses, and improve the overall system operating efficiency.

[0070] Each centrifugal extractor can also be disassembled, replaced, or upgraded as a functional module, which facilitates later maintenance and system expansion, and also promotes standardized manufacturing and mass application.

[0071] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0072] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A centrifugal extractor, characterized in that include: The shell is provided with a slag discharge port (140). A transmission assembly is disposed within the housing, and the transmission assembly includes a first transmission member (100) and a second transmission member (200). The first transmission component (100) includes a rotating shaft (110) and a rotating drum (120). The rotating shaft (110) is rotatably mounted in the housing, and the rotating drum (120) is mounted on the rotating shaft (110). A mounting cavity (121) is formed between the rotating drum (120) and the rotating shaft (110), and a first impeller (122) is provided in the mounting cavity (121). The second transmission component (200) includes a hollow shaft (220) and a separating part (210). The hollow shaft (220) is rotatably mounted inside the housing and sleeved outside the rotating shaft (110). The separating part (210) is disposed inside the rotating drum (120) and located at one end of the hollow shaft (220). There is a speed difference between the first transmission component (100) and the second transmission component (200). A scraper (300) is spirally wound on the hollow shaft (220). The edge of the scraper (300) extends to a position close to the inner wall of the drum (120). A gap (130) for discharging impurities is opened on the drum (120). The gap (130) is located near the slag discharge port (140).

2. The centrifugal extractor according to claim 1, characterized in that The first impeller (122) is disposed at one end of the rotating shaft (110). After the hollow shaft (220) is sleeved on the rotating shaft (110), the first impeller (122) extends at least partially outside the hollow shaft (220).

3. The centrifugal extractor according to claim 2, characterized in that A second impeller (222) is provided on the hollow shaft (220). The second impeller (222) is located on the inner wall of the hollow shaft (220) and is located close to the first impeller (122). A gap is provided between the first impeller (122) and the second impeller (222).

4. The centrifugal extractor of claim 1, wherein, The drum (120) includes a separation section (123) and a slag discharge section (124). The separation section (123) is cylindrical and is located at one end of the hollow shaft (220). The slag discharge section (124) is conical and is located on the separation section (123) and is oriented toward the first impeller (122).

5. The centrifugal extractor according to claim 4, characterized in that The scraping component (300) includes a spiral blade (310) which is wound around the hollow shaft (220) to scrape out impurities present on the inner wall of the drum (120) and transport them to the slag discharge port (140). The spiral blade (310) extends from the position of the slag discharge section (124) near the gap (130) in a direction away from the first impeller (122) and extends into the separation section (123).

6. The centrifugal extractor of claim 1, wherein, The shell is provided with a guide plate (410), which is located on the inner wall of the shell near the slag discharge port (140) to guide the discharged solid impurities.

7. The centrifugal extractor according to claim 6, characterized in that The guide plate (410) is arranged in a ring on the inner wall of the housing, and the cross section of the guide plate (410) is an inclined plate; One end of the guide plate (410) extends to the gap (130), and the other end of the guide plate (410) away from the gap (130) extends to the slag discharge port (140).

8. The centrifugal extractor of claim 1, wherein, The first transmission component (100) includes a first power component (510), which is disposed at one end of the housing and is used to drive the first impeller (122) to rotate. The second transmission member (200) includes a second power member (520), which is disposed on the housing at one end away from the first power member (510) to drive the drum (120) to rotate.

9. The centrifugal extractor of claim 1, wherein, The housing is provided with a third power component and a differential. The output end of the third power component is connected to the differential. The first output end of the differential is connected to the first transmission component (100), and the second output end of the differential is connected to the second transmission component (200).

10. The centrifugal extractor of claim 1, wherein, A storage bin (150) is provided inside the housing near the first impeller (122), and at least two inlets (151) are formed on the housing that communicate with the storage bin (150). The storage silo (150) is equipped with a vortex baffle (152).

11. The centrifugal extractor of claim 1, wherein, The housing has a first discharge port (160) and a second discharge port (170) located near the separation part (210), with the first discharge port (160) located below the second discharge port (170) in the vertical direction.

12. A centrifugal extraction system characterized in that, Includes a frame (400) and a centrifugal extractor as described in any one of claims 1 to 11; At least two centrifugal extractors are provided on the frame (400), and the materials of adjacent centrifugal extractors are connected.

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