Extraction structure, separation structure and centrifugal extraction equipment
By adopting a detachable threaded connection in the centrifugal extractor, the corrosion problem between the drum and the heavy phase weir plate was solved, improving the corrosion resistance and sealing performance of the equipment, simplifying the maintenance process, and extending the equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-13
AI Technical Summary
In existing centrifugal extractors, the bolted connection between the drum and the heavy phase weir plate has poor corrosion resistance, leading to corrosion damage at the connection, affecting the equipment's lifespan and increasing maintenance difficulty.
The traditional bolt connection is replaced by a detachable threaded connection. The feed terminal and the mixing end, as well as the heavy phase weir plate and the discharge end, are connected by threads to improve corrosion resistance and sealing.
It enhances the reliability and sealing of the connection, reduces maintenance time and costs, extends the service life of the equipment, and avoids corrosion problems caused by material differences.
Smart Images
Figure CN223988145U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of centrifugal extraction technology, and more specifically, to an extraction structure, a separation structure, and a centrifugal extraction apparatus. Background Technology
[0002] With the continuous development of industrial technology, centrifugal extractors, as a highly efficient separation device, are widely used in industries such as chemical and pharmaceutical manufacturing. In existing centrifugal extractors, the connection between the drum and the heavy phase weir plate is usually achieved using bolts. While this connection method is simple and convenient, it presents some problems in practical applications.
[0003] Specifically, because centrifugal extractors typically operate in harsh environments, including corrosive media such as strong acids and alkalis, the corrosion resistance of materials is crucial. However, existing bolt materials have poor corrosion resistance and are prone to corrosion damage when exposed to corrosive environments for extended periods. Once the bolt connections are corroded, it not only affects the tightness between the drum and the heavy phase weir plate but also reduces the overall structural strength of the centrifugal extractor, ultimately shortening its service life.
[0004] The drum and the heavy phase weir plate are connected by multiple bolts, making it laborious and time-consuming to disassemble and assemble the drum and the heavy phase weir plate.
[0005] In summary, in existing centrifugal extractors, the drum and the heavy phase weir are connected by bolts. The bolts have poor corrosion resistance, which can lead to corrosion and damage at the bolt connection, reducing the service life of the centrifugal extractor. Furthermore, it can cause time-consuming and labor-intensive maintenance operations, affecting maintenance efficiency. Utility Model Content
[0006] The purpose of this application is to provide an extraction structure, a separation structure, and a centrifugal extraction device, which are easy to install and can also enhance sealing and connection strength, and improve corrosion resistance.
[0007] To achieve the above objectives, in a first aspect, the present invention provides an extraction structure, comprising:
[0008] A rotating drum, with a mixing end and a discharge end at its two ends, is vertically arranged, and the discharge end and the mixing end are distributed sequentially along the direction of gravity.
[0009] The feed terminal is detachably connected to the mixing end.
[0010] In an optional embodiment, a mounting groove extending circumferentially along the feed terminal is provided on the outer wall of the feed terminal near the mixing end. The mounting groove has two conjoined inner walls, and the opening of the mounting groove faces away from the axis of the feed terminal. The inner wall of the mounting groove of the feed terminal is threadedly engaged with the mixing end.
[0011] In an optional embodiment, the inner wall of the feed terminal is provided with an inner stepped groove, the inner stepped groove having a first threaded inner wall that engages with the threaded part of the mixing end, the first threaded inner wall being provided with an internal thread, and the outer wall of the mixing end being provided with an external thread that engages with the internal thread of the inner stepped groove, so that the feed terminal engages with the threaded part of the mixing end.
[0012] In an optional embodiment, the feed terminal is provided with an annular groove, the opening of the annular groove facing the mixing end, and the mixing end is threadedly engaged with the annular groove.
[0013] Secondly, this utility model provides a separation structure, including:
[0014] A rotating drum, wherein the two ends of the rotating drum are a mixing end and a discharging end, respectively;
[0015] The heavy phase weir plate is a sleeve-shaped structure integrally formed with an opening at one end and a bottom wall at the other end. A first liquid passage hole is provided at the bottom wall of the heavy phase weir plate, and the heavy phase weir plate is threadedly installed at the discharge end.
[0016] In an optional embodiment, the inner wall of the heavy phase weir plate is provided with an internal thread, and the outer wall at the discharge end is provided with an external thread that mates with the internal thread on the heavy phase weir plate, so that the heavy phase weir plate and the discharge end can be threadedly engaged.
[0017] In an optional embodiment, an annular groove is provided at the discharge end, and the heavy phase weir plate is disposed in the annular groove, with the heavy phase weir plate threadedly engaged with the annular groove.
[0018] In an optional embodiment, an inner groove is provided at the discharge end, the inner groove is connected to the internal space of the drum, and the heavy phase weir plate is installed in the inner groove;
[0019] The inner groove has a second threaded inner wall that is threaded to the heavy phase weir plate. The second threaded inner wall is provided with an internal thread, and the heavy phase weir plate is provided with an external thread that is threaded to the inner thread of the inner groove, so that the heavy phase weir plate is threaded to the discharge end.
[0020] Thirdly, this utility model provides a centrifugal extraction device, including a shell;
[0021] The centrifugal extraction device further includes an extraction structure as described in any of the foregoing embodiments, the extraction structure being disposed within the housing to promote mixing of the mixed liquid.
[0022] Fourthly, this utility model provides a centrifugal extraction device, including a shell;
[0023] The centrifugal extraction apparatus further includes a separation structure as described in any of the foregoing embodiments, the separation structure being disposed in the housing for discharging heavy phase liquid.
[0024] Fifthly, this utility model provides a centrifugal extraction device, including a housing;
[0025] The centrifugal extraction device further includes an extraction structure as described in any of the foregoing embodiments and a separation structure as described in any of the foregoing embodiments. The extraction structure is disposed in the housing to promote mixing of the mixed liquid, and the separation structure is disposed in the housing to discharge the heavy phase liquid.
[0026] The extraction structure and the separation structure share the same rotating drum.
[0027] In the extraction structure provided by the embodiments of this application, the feed terminal and the mixing end are detachably connected, such as by threaded connection or snap-fit. This detachable connection method does not require the use of bolts, avoiding the corrosion problems that bolts may cause. Even in harsh operating environments, the connection remains reliable, improving corrosion resistance, sealing and reliability.
[0028] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description
[0029] 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.
[0030] Figure 1 A schematic diagram of the structure of a double-phase weir plate from one perspective of one embodiment of a separation structure provided in this application;
[0031] Figure 2 A cross-sectional view of a double-phase weir plate, one embodiment of a separation structure provided in this application.
[0032] Figure 3 This is a two-view structural schematic diagram of one embodiment of a centrifugal extraction device provided in this application.
[0033] Figure 4 This is a two-view structural schematic diagram of a partial structure of one embodiment of a centrifugal extraction device provided in this application.
[0034] Figure 5 for Figure 4 A magnified view of a section at point B in the center circle;
[0035] Figure 6 This is a two-view structural schematic diagram of a portion of one embodiment of an extraction structure provided in this application.
[0036] Figure 7 A two-view structural schematic diagram of a portion of the structure of another embodiment of an extraction structure provided in this application;
[0037] Figure 8 A two-view structural schematic diagram of a portion of the structure of another embodiment of an extraction structure provided in this application;
[0038] Figure 9 for Figure 4 A magnified view of a section at point A in the middle circle;
[0039] Figure 10 This is a two-view structural schematic diagram of a portion of one embodiment of a separate structure provided in this application.
[0040] Figure 11 This is a two-view structural schematic diagram of a partial structure of another embodiment of a separate structure provided in this application.
[0041] Figure 12 This is a two-view structural schematic diagram of a portion of a separate structure provided in another embodiment of the present application.
[0042] icon:
[0043] 100 - Centrifugal extraction equipment; 110 - Shell;
[0044] 120 - Heavy phase weir plate; 124 - First liquid through hole;
[0045] 130 - Rotary drum; 132 - Mixing end; 134 - Discharge end;
[0046] 140 - Feed terminal;
[0047] 150 - Mounting slot; 160 - Inner stepped slot; 170 - Annular slot;
[0048] 180 - Annular groove; 190 - Inner groove. Detailed Implementation
[0049] 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.
[0050] 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.
[0051] 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.
[0052] Embodiments of this application provide an extraction structure, a separation structure, and a centrifugal extraction device 100. The extraction structure increases the sealing and connection strength between the drum 130 and the feed terminal 140, improving corrosion resistance. The separation structure increases the sealing and connection strength between the drum 130 and the heavy phase weir plate 120, improving corrosion resistance. Furthermore, the extraction and separation structures reduce assembly and disassembly time, improving disassembly efficiency.
[0053] In a first aspect, embodiments of this application also provide an extraction structure, which includes a rotating drum 130 and a feed terminal 140.
[0054] like Figures 3 to 5 As shown, the drum 130 has a mixing end 132 and a discharge end 134. The mixture enters the drum 130 from the mixing end 132. When the mixture moves from the mixing end 132 to the discharge end 134 in the drum 130, the light phase liquid and the heavy phase liquid in the mixture are separated.
[0055] The feed terminal 140 is detachably connected to the mixing end 132, and the mixed material enters the drum 130 through the feed terminal 140. Exemplarily, the detachable connection between the feed terminal 140 and the mixing end 132 is, for example, a threaded connection or a snap-fit connection.
[0056] In some related technologies, the feed terminal 140 and the mixing end 132 are connected by bolts. However, frequent disassembly leads to poor sealing at the bolt connection, requiring the removal and retightening of multiple bolts, making the connection between the feed terminal 140 and the mixing end 132 time-consuming and labor-intensive to maintain and replace the feed terminal 140. Generally, the material of the bolts connecting the feed terminal 140 and the mixing end 132 is different from that of the feed terminal 140 and the mixing end 132. Furthermore, since the bolts have lower corrosion resistance than the feed terminal 140, they may corrode under special operating conditions, affecting the service life of the centrifugal extraction equipment 100. Producing bolts of the same material as the feed terminal 140 would increase the cost of bolt production. Moreover, due to the difference in the thermal expansion coefficient between the bolts and the feed terminal 140 or the drum 130, there may be sealing problems under certain operating conditions.
[0057] In this application, the feed terminal 140 and the mixing end 132 are threaded together, eliminating the need for bolt connection. Even in harsh operating environments, the connection remains reliable, improving corrosion resistance, sealing, and reliability.
[0058] By using a threaded connection to connect the feed terminal 140 and the mixing end 132, the traditional bolt connection is eliminated, thus avoiding the problem of poor sealing at the bolt connection caused by frequent disassembly. This threaded connection method can maintain the reliability of the connection even in harsh operating environments.
[0059] Because the threaded connection eliminates the need for bolts, there is no issue of corrosion resistance differences caused by variations in bolt material compared to the feed terminal 140 or the drum 130. This enhances the overall corrosion resistance of the extraction structure, particularly extending the service life of the centrifugal extraction equipment 100 under special operating conditions.
[0060] The threaded connection makes the installation and removal of the feed terminal 140 simpler and faster, eliminating the need to remove multiple bolts and retighten them, thus saving installation time and maintenance costs.
[0061] The threaded fit provides a tighter seal, avoiding sealing problems caused by differences in materials and thermal expansion coefficients between the bolt and the feed terminal 140 or the drum 130. This tight seal helps prevent leakage of the mixture and ensures the normal operation of the centrifugal extraction equipment 100.
[0062] Because bolts are avoided, there is no need to manufacture corrosion-resistant bolts that match the feed terminal 140, thus reducing production costs. At the same time, the threaded connection reduces the frequency of bolt replacements due to corrosion, further lowering maintenance costs.
[0063] like Figure 5 As shown, in one embodiment, a mounting groove 150 extending circumferentially along the outer wall of the feed terminal 140 near the mixing end 132 is provided. The mounting groove 150 has two vertically connected inner walls, and the opening of the mounting groove 150 faces a direction away from the axis of the feed terminal 140. The mixing end 132 is connected to the feed terminal 140 at the mounting groove 150, for example, the feed terminal 140 and the mixing end 132 are threaded together. An external thread is provided on the side wall of the mounting groove 150 parallel to the axis of the drum 130, and an internal thread is provided on the inner wall of the mixing end 132 that mates with the external thread on the mounting groove 150, so that the mixing end 132 and the feed terminal 140 are threaded together.
[0064] By providing external threads on the sidewall of the mounting groove 150 and internal threads on the inner wall of the mixing end 132, a threaded connection is achieved between the feeding terminal 140 and the mixing end 132. This connection method is more stable than traditional bolt connections and can withstand greater forces and torques, thereby enhancing the stability and reliability of the connection.
[0065] The threaded connection creates a tight seal at the joint, effectively preventing leakage of the mixture. This is crucial for ensuring the normal operation of the centrifugal extraction equipment 100 and the quality of the mixture.
[0066] like Figure 6 As shown, in one embodiment, the difference from the above embodiment is that: an inner stepped groove 160 is provided on the inner wall of the feed terminal 140, the inner stepped groove 160 has a first threaded inner wall that is threaded to the mixing end 132, the first threaded inner wall is provided with an internal thread, and the outer wall of the mixing end 132 is provided with an external thread that is threaded to the inner thread of the inner stepped groove 160, so that the feed terminal 140 is threaded to the mixing end 132.
[0067] For example, such as Figure 6As shown, the inner wall of the first thread is parallel to the axis of the drum 130. However, in another embodiment, the inner wall of the first thread has an angle with the axis of the drum 130, the angle being, for example, within the range of 1° to 10° or other ranges. This angle is inclined towards the axis of the drum 130, and the outer wall of the mixing end 132 that is threaded to the inner wall of the first thread is parallel to the inner wall of the first thread. The inner wall of the first thread at the inner stepped groove 160 has an angle relative to the axis of the drum 130, so that the inner wall of the first thread and the mixing end 132 have a certain guiding effect, enabling the feed terminal 140 to be connected and installed onto the mixing end 132 of the drum 130 more quickly.
[0068] For example, such as Figure 6 As shown, the inner stepped groove 160 also has an inner wall perpendicular to the axis of the drum 130, which can limit the drum 130 and prevent the feed terminal 140 from being excessively screwed into the drum 130.
[0069] like Figure 7 and Figure 8 As shown, in one embodiment, the difference from the above embodiment is that: an annular groove 170 is provided on the feed terminal 140, the opening of the annular groove 170 faces the mixing end 132, and the mixing end 132 is threadedly engaged with the annular groove 170.
[0070] The annular groove 170 has two inner walls parallel to the axis of the drum 130 and one inner wall perpendicular to the axis of the drum 130. The inner wall perpendicular to the axis of the drum 130 connects to the other two inner walls parallel to the axis of the drum 130. The two inner walls parallel to the axis of the drum 130 can limit the deformation of the mixing end 132 of the drum 130, improve the connection strength and resistance to deformation.
[0071] By providing an annular groove 170 on the feed terminal 140 and threading it with the mixing end 132, this connection method is more robust than the traditional direct threaded connection. The two inner walls of the annular groove 170, parallel to the axis of the drum 130, effectively limit the deformation of the mixing end 132 of the drum 130, thereby improving the strength and stability of the connection. This design allows the mechanical structure to withstand greater loads and torques, ensuring long-term stable operation of the equipment.
[0072] The design of the annular groove 170 not only enhances the strength of the connection but also improves its resistance to deformation. Especially under harsh working conditions such as high pressure, high temperature, or strong corrosion, the mechanical structure may deform under the influence of external forces. The two parallel inner walls of the annular groove 170 can support the mixing end 132 of the drum 130 like a bracket, preventing unnecessary deformation due to external forces, thereby extending the service life of the mechanical structure.
[0073] The threaded engagement between the annular groove 170 and the mixing end 132 forms a tight seal, effectively preventing leakage of the mixture at the connection. This is crucial for the centrifugal extraction equipment 100, as leakage not only leads to material waste but can also damage the equipment. Optimizing the sealing performance ensures the normal operation of the equipment and the quality of the mixture.
[0074] like Figure 7 As shown, in one embodiment, an external thread is provided on the outer wall of the mixing end 132, and an internal thread is provided on the inner wall of the annular groove 170 near the outer wall of the mixing end 132, which mates with the external thread on the mixing end 132, so that the feed terminal 140 is threadedly engaged with the mixing end 132.
[0075] like Figure 8 As shown, in one embodiment, this embodiment differs from the above embodiment in that: an internal thread is provided on the inner wall of the mixing end 132, and an external thread is provided on the inner wall of the annular groove 170 near the inner wall of the mixing end 132 to engage with the internal thread of the mixing end 132, so that the feed terminal 140 engages with the thread of the mixing end 132.
[0076] In another embodiment, the inner walls of the annular groove 170, which are parallel to the axis of the drum 130, are provided with threads, and the outer and inner walls of the mixing end 132 are provided with threads, so that the mixing end 132 is double-threadedly connected to the feed terminal 140.
[0077] Secondly, embodiments of this application also provide a separation structure, including a drum 130 and a double-phase weir plate 120.
[0078] The drum 130 has a mixing end 132 and a discharge end 134. The mixture enters the drum 130 from the mixing end 132. As the mixture moves from the mixing end 132 to the discharge end 134 within the drum 130, the light phase liquid and the heavy phase liquid in the mixture are separated. It is understood that when the separation structure provided in the embodiments of this application and the extraction structure provided in the embodiments of this application are applied to the same centrifugal extraction device 100, they share the same drum 130.
[0079] like Figure 1 and Figure 2 As shown, the heavy phase weir plate 120 is a sleeve-shaped structure with one end open and the other end having a bottom wall. A first liquid passage hole 124 is provided at the bottom wall of the heavy phase weir plate 120; as Figure 4 As shown, the heavy phase weir plate 120 is threadedly installed at the discharge end 134, and the heavy phase liquid below the heavy phase weir plate 120 is discharged from the first liquid through hole 124 formed by the heavy phase weir plate 120.
[0080] In some related technologies, the heavy phase weir plate 120 is bolted to the discharge end 134 of the drum 130. Frequent disassembly leads to poor sealing at the bolt connection, and requires removing and retightening multiple bolts, making the connection between the heavy phase weir plate 120 and the drum 130 time-consuming and labor-intensive to replace. The heavy phase weir plate 120 is made of metal, usually stainless steel, although other materials may be used in special conditions. The bolts connecting the heavy phase weir plate 120 and the drum 130 are typically made of stainless steel. The materials used for the bolts are carbon steel, alloy steel, or copper alloy. Because the heavy phase weir plate 120 and the bolts are made of different materials, and because the bolts have poorer corrosion resistance than the heavy phase weir plate 120, the bolts may corrode under special working conditions, affecting the service life of the centrifugal extractor. Producing bolts made of the same material as the heavy phase weir plate 120 would increase the cost of bolt production. Moreover, because the bolts and the heavy phase weir plate 120 are made of different materials, there is a difference in their coefficients of thermal expansion, which may lead to poor sealing under certain working conditions.
[0081] In this application, by designing the heavy phase weir plate 120 to be threadedly installed at the discharge end 134 of the drum 130, the installation and disassembly process is greatly simplified compared to the traditional bolt connection method. Workers only need to rotate the heavy phase weir plate 120 to complete the connection or disconnection, without the need to use tools to disassemble and tighten multiple bolts, thereby improving work efficiency and reducing maintenance costs.
[0082] Threaded connections provide a tighter seal, effectively preventing leakage of heavy phase liquids at the joint. This is crucial for the centrifugal extraction equipment 100, as leakage not only leads to material waste but can also damage the equipment. By improving sealing performance, the normal operation of the equipment and the stability of the mixture's quality can be ensured.
[0083] Since the heavy phase weir plate 120 is typically made of highly corrosion-resistant metal materials (such as stainless steel), the threaded connection avoids corrosion problems that might arise from using different materials (such as bolts). Under special operating conditions, this design can reduce corrosion caused by material differences, thereby extending the service life of the equipment.
[0084] Because threaded connections do not involve direct connections between different materials (such as bolts and heavy phase weir plates 120), problems such as poor sealing caused by mismatched coefficients of thermal expansion are reduced. This design allows the equipment to maintain good sealing performance even under special operating conditions (such as high or low temperature environments).
[0085] The threaded connection makes the installation and removal of the heavy phase weir plate 120 simpler and faster, eliminating the need to remove and retighten multiple bolts, thus saving installation time and maintenance costs.
[0086] By eliminating bolt connections, the heavy phase weir plate 120 can be configured as a single integral structure, reducing stress concentration and enhancing the structural strength of the heavy phase weir plate 120.
[0087] like Figure 9 As shown, in one embodiment, the inner wall of the heavy phase weir plate 120 is provided with internal threads. For example, the inner wall of the heavy phase weir plate 120 parallel to the axial direction is provided with internal threads.
[0088] The outer wall of the discharge end 134 is provided with an external thread that mates with the internal thread on the heavy phase weir plate 120, so that the heavy phase weir plate 120 and the discharge end 134 can be threadedly engaged.
[0089] like Figure 10 and Figure 11 As shown, in one embodiment, an annular groove 180 is provided at the discharge end 134, and a heavy phase weir plate 120 is disposed in the annular groove 180, with the heavy phase weir plate 120 threadedly engaged with the annular groove 180.
[0090] Exemplarily, the annular groove 180 is a groove structure extending circumferentially around the discharge end 134, disposed on the discharge end 134. The heavy phase weir plate 120 is installed into the annular groove 180 through its opening. The opening of the annular groove 180 is parallel to the axis of the discharge end 134 and faces the heavy phase weir plate 120. The annular groove 180 has two side walls parallel to the axis of the drum 130 and a bottom wall perpendicular to the axis of the drum 130. The heavy phase weir plate 120 is threaded into the side walls of the annular groove 180 parallel to the axis of the drum 130.
[0091] By providing an annular groove 180 at the discharge end 134 and threading the heavy phase weir plate 120 into the annular groove 180, this design provides a more stable and tighter sealing interface. The structure of the annular groove 180 allows the heavy phase weir plate 120 to fit more evenly on the discharge end 134, reducing the risk of leakage, especially under high pressure or high flow rate operating conditions.
[0092] The design of the annular groove 180 increases the structural strength of the discharge end 134. By providing an additional support surface (i.e., the two inner walls of the annular groove 180 parallel to the axis), this design can better withstand the pressure and other mechanical stresses from the heavy phase liquid, reduce deformation, and thus extend the service life of the equipment.
[0093] like Figure 10 As shown, in one embodiment, the outer wall of the heavy phase weir plate 120 is provided with an external thread, and the side wall of the annular groove 180 near the outer wall of the heavy phase weir plate 120 is provided with an internal thread that mates with the heavy phase weir plate 120, so that the heavy phase weir plate 120 and the annular groove 180 are threadedly engaged.
[0094] like Figure 11 As shown, in one embodiment, the difference between this embodiment and the above embodiment is that: the inner wall of the heavy phase weir plate 120 is provided with an internal thread, and the side wall of the annular groove 180 near the inner wall of the heavy phase weir plate 120 is provided with an external thread that mates with the heavy phase weir plate 120, so that the heavy phase weir plate 120 and the annular groove 180 are threadedly engaged.
[0095] In another embodiment, this embodiment differs from the above embodiment in that: threads are provided on both side walls of the annular groove 180 in the direction parallel to the axis, and threads are provided on both the outer and inner walls of the heavy phase weir plate 120, so that the heavy phase weir plate 120 and the annular groove 180 are double-threaded connected, thereby improving sealing and connection strength.
[0096] like Figure 12 As shown, in one embodiment, an inner groove 190 is provided at the discharge end 134. The inner groove 190 communicates with the internal space of the drum 130. The inner groove 190 has a second threaded inner wall that is threadedly engaged with the heavy phase weir plate 120. The second threaded inner wall is provided with an internal thread. The heavy phase weir plate 120 is provided with an external thread that is engaged with the internal thread of the inner groove 190, so that the heavy phase weir plate 120 is threadedly engaged with the discharge end 134.
[0097] For example, such as Figure 12 As shown, the inner wall of the second thread is parallel to the axis of the drum 130. However, in another embodiment, the inner wall of the second thread has an angle with the axis of the drum 130, which is inclined towards the axis of the drum 130. The size of this angle is, for example, in the range of 1° to 10° or other ranges, and the sidewall of the heavy phase weir plate 120 that is threaded with the inner wall of the second thread is parallel to the inner wall of the second thread. The inner wall of the second thread at the inner groove 190 is inclined relative to the axis of the drum 130, so that the inner wall of the second thread and the heavy phase weir plate 120 have a certain guiding effect, which enables the heavy phase weir plate 120 to be connected and installed onto the discharge end 134 of the drum 130 more quickly.
[0098] For example, the inner groove 190 also has an inner wall perpendicular to the axis of the drum 130, which can limit the heavy phase weir plate 120 and prevent the heavy phase weir plate 120 from excessively rotating into the drum 130.
[0099] The inner wall of the inner groove 190, which is parallel to the axis of the drum 130, is provided with an internal thread, and the outer wall of the heavy phase weir plate 120 is provided with an external thread that mates with the internal thread on the inner wall of the inner groove 190.
[0100] Thirdly, embodiments of this application also provide a centrifugal extraction apparatus 100, such as... Figure 3 and Figure 4 As shown, the centrifugal extraction device 100 includes a housing 110.
[0101] The centrifugal extraction apparatus 100 also includes an extraction structure according to any of the above embodiments, which is disposed within the housing 110 to promote further mixing of the mixed liquid.
[0102] Fourthly, embodiments of this application also provide another centrifugal extraction apparatus 100, which includes a housing 110.
[0103] The centrifugal extraction apparatus 100 also includes a separation structure as described in any of the above embodiments, which is disposed in the housing 110 for discharging heavy phase liquid.
[0104] Fifthly, embodiments of this application also provide another centrifugal extraction apparatus 100, which includes a housing 110.
[0105] The centrifugal extraction apparatus 100 also includes an extraction structure as described in any of the above embodiments and a separation structure as described in any of the above embodiments.
[0106] The extraction structure is located inside the housing 110 to promote further mixing of the mixed liquid.
[0107] The separation structure is provided in the shell 110 for discharging heavy phase liquid.
[0108] The extraction and separation structures share the same rotating drum 130.
[0109] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.
[0110] 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. An extraction structure, characterized by, The drum (130) has a mixing end (132) and a discharging end (134) arranged vertically, and the discharging end (134) and the mixing end (132) are arranged in sequence along the direction of gravity. The feeding end (140) is detachably connected with the mixing end (132). An installation groove (150) extending circumferentially along the feeding end (140) is arranged on one end of the outer wall of the feeding end (140) close to the mixing end (132), the installation groove (150) has two abutting inner walls, and the opening of the installation groove (150) faces away from the axis of the feeding end (140), and the inner wall of the installation groove (150) of the feeding end (140) is threadedly matched with the mixing end (132).
2. The extraction structure of claim 1, wherein, An inner stepped groove (160) is arranged on the inner wall of the feeding end (140), the inner stepped groove (160) has a first threaded inner wall threadedly matched with the mixing end (132), the first threaded inner wall is provided with an inner thread, and the outer wall of the mixing end (132) is provided with an outer thread matched with the inner thread of the inner stepped groove (160), so that the feeding end (140) is threadedly matched with the mixing end (132).
3. The extraction structure of claim 1, wherein, An annular groove (170) is arranged on the feeding end (140), the opening of the annular groove (170) faces the mixing end (132), and the mixing end (132) is threadedly matched with the annular groove (170).
4. The extraction structure of claim 1, wherein, The drum (130) has a mixing end (132) and a discharging end (134).
5. A separation structure, characterized by, The heavy phase weir plate (120) is a sleeve-shaped structure integrally formed with one end open and the other end having a bottom wall, a first liquid through hole (124) is arranged at the bottom wall of the heavy phase weir plate (120), and the heavy phase weir plate (120) is threadedly installed at the discharging end (134). An inner thread is arranged on the inner wall of the heavy phase weir plate (120), and an outer thread matched with the inner thread of the heavy phase weir plate (120) is arranged on the outer wall at the discharging end (134), so that the heavy phase weir plate (120) is threadedly matched with the discharging end (134). An annular groove (180) is arranged at the discharging end (134), the heavy phase weir plate (120) is arranged in the annular groove (180), and the heavy phase weir plate (120) is threadedly matched with the annular groove (180).
6. The separation structure according to claim 5, wherein An inner groove (190) is arranged at the discharging end (134), the inner groove (190) is in communication with the inner space of the drum (130), and the heavy phase weir plate (120) is installed in the inner groove (190).
7. The separation structure of claim 5, wherein 8. The separation structure of claim 5, wherein, The inner slot (190) has a second threaded inner wall that threadably engages the heavy phase weir plate (120), the second threaded inner wall having internal threads, the heavy phase weir plate (120) having external threads that threadably engage the internal threads of the inner slot (190) to threadably engage the heavy phase weir plate (120) with the discharge end (134).
9. A centrifugal extraction apparatus (100), characterized by comprising a housing (110); The centrifugal extraction apparatus (100) further comprises the extraction structure of any one of claims 1 to 4 disposed within the housing (110) for facilitating mixing of the mixed liquid.
10. A centrifugal extraction apparatus (100), characterized by comprising a housing (110); The centrifugal extraction apparatus (100) further comprises the separation structure of any one of claims 5 to 8 disposed in the housing (110) for discharging the heavy phase liquid.
11. A centrifugal extraction apparatus (100), characterized by comprising a housing (110); The centrifugal extraction apparatus (100) further comprises the extraction structure of claim 1 disposed within the housing (110) for facilitating mixing of the mixed liquid and the separation structure of claim 5 disposed in the housing (110) for discharging the heavy phase liquid; The extraction structure and the separation structure share the same said rotating drum (130).