Centrifugal extractor with adjustable mixing strength

Abstract

The utility model belongs to the field of liquid-liquid extraction separation, and particularly relates to a centrifugal extractor with adjustable mixing strength. In order to adjust the mixing strength of the centrifugal extractor, the utility model provides the centrifugal extractor with adjustable mixing strength. The centrifugal extractor with the adjustable mixing strength comprises a rotary drum terminal, a fixed outer barrel and at least one flow channel used for mixing liquid, the rotary drum terminal comprises a rotary barrel with one end located in the outer barrel, a mixing strength adjusting ring is detachably installed between the outer barrel and the rotary barrel, the outer diameter of the mixing strength adjusting ring is matched with the inner diameter of the outer barrel, and the flow channel is used for mixing the liquid. The liquid is prevented from entering the space between the mixing strength adjusting ring and the outer cylinder; an annular gap between the mixing strength adjusting ring and the rotary drum forms the flow channel, and / or the mixing strength adjusting ring is provided with the flow channel. The width of the annular gap and / or the type of the flow channel on the mixing strength adjusting ring are / is changed by replacing the mixing strength adjusting ring, so that the mixing strength of the centrifugal extractor is adjusted.

Description

Technical Field

[0001] This invention belongs to the field of liquid-liquid extraction and separation, and in particular relates to a centrifugal extractor with adjustable mixing intensity. Background Technology

[0002] When using a centrifugal extractor, the heavy phase solution and the light phase solution need to be mixed together. When the mixing intensity is low, the mass transfer efficiency between the two liquid phases is low. When the mixing intensity is high, the mixed liquid will emulsify. Therefore, the mixing intensity of the centrifugal extractor must be adjusted according to the type of heavy phase solution and light phase solution.

[0003] In a centrifugal extractor, the space between the fixed outer cylinder and the high-speed rotating inner cylinder (i.e., the rotating drum) forms an annular gap. The heavy phase and light phase liquid mix and transfer mass in the annular gap, and the mixed liquid enters the rotating drum through the mixed phase inlet at the lower end of the rotating drum.

[0004] For example, Chinese invention patent with authorization announcement number CN104587704B and authorization announcement date of February 22, 2017 discloses an annular gap centrifugal extractor with a vertical mixing baffle. The annular gap centrifugal extractor includes a shell and a rotating drum. The space between the shell and the rotating drum forms an annular gap. A vertical mixing baffle is provided on the inner wall of the shell to improve the mixing intensity of the annular gap centrifugal extractor.

[0005] However, the mixing intensity cannot be adjusted in the aforementioned annular centrifugal extractor. Utility Model Content

[0006] The purpose of this invention is to provide a centrifugal extractor with adjustable mixing intensity to solve the technical problem that the mixing intensity of existing centrifugal extractors cannot be adjusted.

[0007] To achieve the above objectives, the technical solution of the centrifugal extractor with adjustable mixing intensity provided by this utility model is as follows:

[0008] A centrifugal extractor with adjustable mixing intensity includes a drum terminal, a fixed outer cylinder, and at least one flow channel for mixing liquids. The drum terminal includes a drum with one end located inside the outer cylinder. A mixing intensity adjustment ring is detachably installed between the outer cylinder and the drum. The outer diameter of the mixing intensity adjustment ring is adapted to the inner diameter of the outer cylinder to prevent liquid from entering between the mixing intensity adjustment ring and the outer cylinder.

[0009] The annular gap between the inner wall of the mixing intensity adjusting ring and the rotating cylinder constitutes the flow channel, and / or, the mixing intensity adjusting ring is provided with at least one flow channel, the inlet of each flow channel is located on the upper end face of the mixing intensity adjusting ring, and the outlet of each flow channel is located on the inner wall or lower end face of the mixing intensity adjusting ring.

[0010] Furthermore, the flow channel is an arc-shaped flow channel.

[0011] Furthermore, the flow channel is a spiral flow channel.

[0012] Furthermore, the flow channel is a serpentine flow channel, and the serpentine flow channel meanders multiple times to extend the length of the serpentine flow channel.

[0013] Furthermore, each flow channel includes at least two inlets, and / or each flow channel includes at least two outlets.

[0014] Furthermore, for the same flow channel, the flow channel includes a main channel section and at least two branch channels, wherein all branch channels are connected in parallel, and the downstream of each branch channel is connected to the upstream of the main channel section.

[0015] Furthermore, the liquid outlet is located on the side away from the drum body, and is positioned lower on the inner wall of the mixing intensity adjustment ring.

[0016] Furthermore, an impeller is mounted on the rotating drum.

[0017] Furthermore, a turbine disk is detachably mounted on the bottom of the outer cylinder.

[0018] Furthermore, a bottom cover is detachably installed at the bottom of the outer cylinder.

[0019] The beneficial effects of the centrifugal extractor with adjustable mixing intensity provided by this utility model are as follows:

[0020] The mixing intensity can be controlled by changing the inner diameter of the mixing intensity regulating ring. When the inner diameter of the mixing intensity regulating ring is small, the difference between the inner diameter of the mixing intensity regulating ring and the outer diameter of the rotating drum is small, the width of the annular gap is narrow, and the mixing intensity is large. When the inner diameter of the mixing intensity regulating ring is large, the width of the annular gap is wide, and the mixing intensity is small. And / or, the mixing intensity can be controlled by changing the presence and type of flow channels on the mixing intensity regulating ring.

[0021] During use, the rotating drum draws the mixed liquid from the annular gap into the drum. By changing different mixing intensity adjustment rings, the width of the annular gap, the presence or absence of flow channels, and the type of flow channels can be controlled. On the one hand, this can prevent the flow area of ​​the flow channels from being too small, ensuring the continuity of liquid absorption in the rotating drum; on the other hand, it can prevent the flow area of ​​the flow channels from being too large, ensuring that the centrifugal extractor has sufficient mixing intensity and that the light and heavy phases have high mass transfer efficiency.

[0022] When changing the light phase solution and / or the heavy phase solution, the centrifugal extractor needs to be disassembled and the rotor and outer cylinder cleaned. At this time, a suitable mixing intensity adjustment ring can be replaced. Attached Figure Description

[0023] Figure 1This is a schematic diagram of the structure of a centrifugal extractor with adjustable mixing intensity according to the present invention;

[0024] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure of the first type of mixing intensity adjustment ring;

[0026] Figure 4 for Figure 2 A cross-sectional schematic diagram of the first type of mixing intensity adjustment ring;

[0027] Figure 5 for Figure 2 A cross-sectional schematic diagram of the second type of mixing intensity adjustment ring;

[0028] Figure 6 for Figure 2 A cross-sectional schematic diagram of the third type of mixing intensity adjustment ring;

[0029] Figure 7 for Figure 2 A schematic diagram of the fourth type of mixing intensity adjustment ring in the diagram;

[0030] Figure 8 for Figure 7 Diagram showing the relative positions of the liquid outlet and the liquid inlet;

[0031] Figure 9 for Figure 2 A schematic diagram of the flow channel inside the fifth type of mixing intensity adjustment ring (part of the structure of the mixing intensity adjustment ring is omitted).

[0032] Figure 10 for Figure 2 A schematic diagram of the flow channel inside the sixth type of mixing intensity adjustment ring (part of the structure of the mixing intensity adjustment ring is omitted).

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Rotating drum; 2. Outer cylinder; 3. Mixing intensity adjustment ring; 31. Flow channel; 32. Inlet; 33. Outlet; 34. Spiral blade; 35. Branch section; 36. Main section; 4. Annular gap; 5. Turbine disk; 6. Light phase inlet; 7. Heavy phase inlet; 8. Rotating drum body; 9. Shell; 10. Separator cylinder; 11. Connecting hole. Detailed Implementation

[0035] To address the problems in the background technology, the core inventive concept of this utility model is as follows: First, the mixing intensity is adjusted by changing the width of the ring gap using a mixing intensity adjusting ring; Second, a flow channel is provided on the mixing intensity adjusting ring, and the mixing intensity is adjusted by changing the flow channel.

[0036] The present invention will be further described in detail below with reference to the embodiments.

[0037] Specific embodiments of the centrifugal extractor with adjustable mixing intensity provided by this utility model:

[0038] like Figures 1-10 As shown, as a specific implementation of the first type, such as Figures 1-2 As shown, the centrifugal extractor with adjustable mixing intensity includes a drum and a housing 9. The drum includes a drum body 8 and a drum terminal connected to the lower end of the drum body 8. An outer cylinder 2 is fixedly connected to the housing 9 (i.e., the outer cylinder 2 is fixedly installed). The drum terminal includes a drum 1 with one end located inside the outer cylinder 2. A mixing intensity adjusting ring 3 is detachably installed between the outer cylinder 2 and the drum 1. The outer diameter of the mixing intensity adjusting ring 3 is adapted to the inner diameter of the outer cylinder 2 to prevent liquid from entering between the mixing intensity adjusting ring 3 and the outer cylinder 2. The space between the inner wall of the mixing intensity adjusting ring 3 and the drum 1 forms an annular gap 4.

[0039] In the first-1 basic embodiment, the outer circumferential surface of the mixing intensity adjusting ring 3 is provided with a male thread, the inner circumferential surface of the outer cylinder 2 is provided with a female thread, and the mixing intensity adjusting ring 3 is threadedly connected to the outer cylinder 2.

[0040] In the first and second basic embodiments, the mixing strength adjustment ring 3 is interference-fitted into the outer cylinder 2.

[0041] In the first to third specific embodiments, the bottom of the outer cylinder 2 is detachably fitted with a bottom cover, in which case the mixing intensity adjustment ring 3 can be quickly replaced by removing the bottom cover.

[0042] In the specific embodiment of type 1-3-1, the mixing strength adjustment ring 3 can be detachably connected to the bottom cover by means of snap-fit ​​or bolt connection.

[0043] In specific embodiments of type 1-3-2, the mixing intensity adjustment ring 3 is assembled on the outer cylinder 2.

[0044] In the specific embodiments of type 1-3-3, the mixing intensity adjustment ring 3 is non-removably mounted on the bottom cover. In this case, both the bottom cover and the mixing intensity adjustment ring 3 need to be replaced at the same time.

[0045] In specific embodiments of types 1-4, a turbine disk 5 is detachably installed at the bottom of the outer cylinder 2. In this case, the mixing intensity adjustment ring 3 can be quickly replaced by removing the turbine disk 5. For example, a base plate is detachably connected to the bottom end of the outer cylinder 2 by bolts, and the turbine disk is connected to the top end of the base plate.

[0046] Of course, the mixing intensity adjusting ring 3 can also be detachably installed between the outer cylinder 2 and the rotating cylinder 1 in other ways. In this utility model, the essence of the detachable installation of the mixing intensity adjusting ring 3 is: the ring is detachably installed in the bottom-closed cylinder. Those skilled in the art can conceive of other ways to detachably install the ring in the bottom-closed cylinder, and the method of installing the ring is not limited here.

[0047] The mixing intensity can be controlled by changing the inner diameter of the mixing intensity adjusting ring 3. When the inner diameter of the mixing intensity adjusting ring 3 is small, the difference between the inner diameter of the mixing intensity adjusting ring 3 and the outer diameter of the rotating drum 1 is small, the width of the ring gap 4 is narrow, and the mixing intensity is large. When the inner diameter of the mixing intensity adjusting ring 3 is large, the width of the ring gap 4 is wide, and the mixing intensity is small.

[0048] In operation, the light phase liquid enters the outer cylinder 2 through the light phase inlet 6, and the heavy phase liquid enters the outer cylinder 2 through the heavy phase inlet 7. The light and heavy phase liquids mix within the annular gap 4. The rotating cylinder 1 draws the mixed liquid from the annular gap 4 into itself. The width of the annular gap 4 can be adjusted by changing different mixing intensity adjusting rings 3. On the one hand, this prevents the annular gap 4 from being too narrow, ensuring that there is a sufficient amount of mixed liquid within the annular gap 4, thus ensuring the continuity of liquid absorption by the rotating cylinder 1 and avoiding the following situation: the rotating cylinder 1 can directly and instantly draw out all the mixed liquid in the annular gap 4, causing the rotating cylinder 1 to intermittently draw out the mixed liquid in the annular gap 4. On the other hand, this prevents the annular gap 4 from being too wide, ensuring that the centrifugal extractor has sufficient mixing intensity and ensuring high mass transfer efficiency between the light and heavy phases.

[0049] When changing the light phase solution and / or the heavy phase solution, the centrifugal extractor needs to be disassembled and the rotating drum 1 and outer drum 2 cleaned. At this time, a suitable mixing intensity adjusting ring 3 can be replaced. In the second type of specific embodiment, refer to... Figures 3-10 As shown, based on the first specific embodiment, the mixing intensity regulating ring 3 is further provided with at least one flow channel 31, the liquid inlet 32 ​​of each flow channel 31 is located on the upper end face of the mixing intensity regulating ring 3, and the liquid outlet 33 of each flow channel 31 is located on the inner side wall or lower end face of the mixing intensity regulating ring 3.

[0050] During operation, the rotating drum 1 draws the mixed liquid near the turbine disk 5 (or bottom cover) in the annular gap 4 into the rotating drum 1. It should be noted that the mixed liquid, after the light and heavy phases are mixed, moves upwards along the annular gap 4 towards one end of the turbine disk 5, or upwards along the annular gap 4 towards the inner wall of the adjusting ring 3. During this movement, on one hand, the light and heavy phases can enter the flow channel 31 and mix within it, increasing the mixing intensity and mass transfer efficiency; on the other hand, the mixed liquid enters the annular gap 4 from the outlet 33. By changing the vertical height of the outlet 33, the mixing intensity of the light and heavy phases is altered, thus improving the mass transfer efficiency of the light and heavy phases.

[0051] In the second type of specific embodiment, the number of flow channels 31 can be one, two, three or more, and those skilled in the art can design the number of flow channels 31 according to actual needs; the shape of the flow channels 31 can also be arc-shaped, serpentine or other shapes (including irregular shapes), and those skilled in the art can design the shape of the flow channels 31 according to actual needs. In the second type of specific embodiment, it is sufficient to ensure that the liquid inlet 32 ​​of the flow channel 31 is located on the upper end face of the mixing intensity adjusting ring 3, and that the liquid outlet 33 of the flow channel 31 is located on the inner side wall or lower end face of the mixing intensity adjusting ring 3.

[0052] To facilitate understanding by those skilled in the art, the following are some design methods for flow channel 31:

[0053] In the second-1 type of specific embodiment, each flow channel 31 includes only one inlet 32 ​​and one outlet 33.

[0054] In the specific implementation of type 2-1-1, such as Figures 3-4 As shown, the flow channel 31 is an arc-shaped flow channel, and there are 8 arc-shaped flow channels, which has a simple structure.

[0055] In the specific implementation of category 2-1-2, such as Figure 5 As shown, the flow channel 31 consists of two serpentine flow channels, which meander multiple times to extend the length of the serpentine flow channel, prolong the mixing time of the light and heavy phase liquids in the flow channel 31, and improve the mass transfer effect.

[0056] For example, the outlets 33 of the two serpentine channels are at the same height and located on the inner wall near the turbine disk 5. Because they are close to the turbine disk 5, the light and heavy phase liquids at the outlets 33 can make the liquid flow more stable when entering the annular gap 4.

[0057] In specific embodiments of type 2-1-3, such as Figure 6 As shown, the flow channel 31 consists of four serpentine flow channels.

[0058] In the second-second type of specific embodiment, each flow channel 31 includes at least two inlets 32 and at least two outlets 33.

[0059] In specific implementations of type 2-2-1, such as Figure 7 As shown, the flow channel 31 consists of four irregularly shaped flow channels, each of which has two inlets 32 and two outlets 33.

[0060] In the second-2-2 type specific embodiment, each flow channel 31 has three, four or more liquid inlets 32 and each flow channel 31 has three, four or more liquid outlets 33.

[0061] In the second and third types of specific embodiments, each flow channel 31 has one inlet 32 ​​and at least two outlets 33, or each flow channel 31 has one outlet 33 and at least two inlets 32.

[0062] In the specific implementation of type 2-3-1, such as Figure 7 As shown, for the same flow channel ( Figure 7 Specifically, there are 8 channels, including a main channel section 36 and at least two branch channels 35. Figure 7 The same flow channel contains two branch sections 35, wherein all branch sections 35 are connected in parallel, and the downstream of each branch section 35 is connected to the upstream of the main flow section 36.

[0063] At the intersection of branch section 35 and main section 36, the liquids in multiple branch sections 35 will be mixed again to increase the mixing intensity and improve the mixing effect.

[0064] like Figure 7 As shown, the liquid inlets 32 corresponding to each branch section 35 are located on both sides of the mixing intensity adjustment ring 3, so that liquids that are far apart can be fully mixed through the flow channel 31.

[0065] In specific implementations of categories 2-4, such as Figures 9-10 As shown, the flow channel 31 is a spiral flow channel to extend the mixing time and improve the mixing effect.

[0066] In the specific implementation of category 2-4-1, such as Figure 9 As shown, the mixing intensity adjustment ring 3 is hollow inside and has a spiral blade 34. The spiral blade 34 and the inner wall of the mixing intensity adjustment ring 3 together form a flow channel 31 (spiral flow channel).

[0067] In the specific implementation of type 2-4-1-1, refer to Figure 9As shown, the mixing intensity adjustment ring 3 is located between the rotating cylinder 1 and the outer cylinder 2. The inner side wall or lower end face of the mixing intensity adjustment ring 3 is provided with a liquid outlet 33, which is used to connect the spiral flow channel and the turbine disk 5.

[0068] In the specific implementation of category 2-4-1-2, such as Figure 9 As shown, a partition cylinder 10 is also provided inside the annular gap 4. The mixing intensity adjustment ring 3 is located between the partition cylinder 10 and the outer cylinder 2. The lower end of the rotating cylinder 1 is located inside the partition cylinder 10. A connecting hole 11 is provided at the bottom of the partition cylinder 10. The connecting hole 11 is used to connect the space between the partition cylinder 10 and the outer cylinder 2 and the internal space of the partition cylinder 10.

[0069] In the specific implementation of category 2-4-2, such as Figure 10 As shown, the mixing intensity adjustment ring 3 is hollow inside and has a spiral plate. The spiral plate has grooves, which form a spiral flow channel.

[0070] In specific embodiments of type 2-4-3, the mixing intensity adjustment ring 3 is hollow inside and has a spiral tube, and the internal flow channel of the spiral tube constitutes a spiral flow channel.

[0071] In the second type of specific embodiment, when adjusting the mixing intensity, not only can the mixing intensity adjusting ring 3 with a different inner diameter be replaced, but also the mixing intensity adjusting ring 3 with the same inner diameter but a different flow channel 31 can be replaced.

[0072] In the third specific embodiment, no flow channel 31 is provided on the mixing intensity adjustment ring 3, and the mixing intensity can only be adjusted by changing the inner diameter of the mixing intensity adjustment ring 3.

[0073] In the fourth type of specific embodiment, the inner wall of the mixing intensity adjustment ring 3 and the rotating cylinder 1 are rotated and sealed together by a sealing structure such as a dynamic seal. That is, there is no flow channel 31 between the mixing intensity adjustment ring 3 and the rotating cylinder, and the mixing intensity can only be adjusted by changing the type of flow channel 31.

[0074] The main difference between the fourth type of specific implementation and the second type of specific implementation is that the fourth type of specific implementation does not include the annular gap 4 that constitutes the flow channel 31.

[0075] Based on the second or fourth specific embodiments, in order to further improve the mixing intensity and mass transfer efficiency between the light and heavy phase liquids in the centrifugal extractor, the relative positions of the different outlets 33 are improved as follows:

[0076] In the fifth specific implementation method, refer to Figures 3-4 and Figures 6-7As shown, the number of liquid outlets 33 is at least two, and at least two of the liquid outlets 33 are at different heights, thereby increasing the irregularity of the movement of the mixed liquid in the annular gap 4 and improving the mixing intensity and mass transfer efficiency.

[0077] In the fifth-1 type of specific embodiment, the same flow channel 31 has at least two liquid outlets 33, and the at least two liquid outlets 33 are at different heights.

[0078] For example, in the specific embodiment of type 5-1-1, the same flow channel 31 has three liquid outlets 33, the first liquid outlet 33 and the second liquid outlet 33 of the three liquid outlets 33 are at a first height, and the third liquid outlet 33 is at a second height.

[0079] In the specific implementation of type 5-2, there are at least two flow channels 31, and the outlets 33 of at least two flow channels 31 are at different heights.

[0080] For example, such as Figures 3-4 As shown, there are eight flow channels 31, and the outlet 33 of any one of the flow channels 31 is at a different height from the outlets 33 of the other six flow channels 31.

[0081] The liquid outlet 33 is located on the side away from the drum body 8 and is positioned lower on the inner wall of the mixing intensity adjustment ring 3 to prolong the time the liquid flows in the flow channel 31, thereby prolonging the mixing time and improving the mixing effect. At the same time, the low height of the liquid outlet 33 can effectively prevent liquid splashing and improve the mixing effect.

[0082] Based on the second or fourth type of specific embodiments, the relative positions of the liquid inlet 32 ​​and the liquid outlet 33 in this utility model are improved as follows:

[0083] In the sixth type of specific implementation, refer to Figures 7-8 As shown, for the same flow channel 31, the projection of the line connecting the liquid inlet 32 ​​and the center of the mixing intensity adjustment ring 3 onto the horizontal plane is defined as a line segment. L The projection of the line connecting the outlet 33 and the center of the mixing intensity adjustment ring 3 on the same horizontal plane is a line segment. l Then the line segment L With line segment l The angle between α Satisfy: 0 < α ≤180°.

[0084] In the specific implementation of category 6-1, such as Figure 8 As shown, α =90°.

[0085] In the specific implementation of category 6-2, the angle αFor example, an acute angle. α =30° or 45° or 60°.

[0086] In the specific implementation of category 6-3, the angle α For example, an obtuse angle. α =120° or 135° or 150°.

[0087] In the specific embodiments of category 6-4, α =180°. At this time, if the liquid inlet 32 ​​is defined to be located on the left side of the mixing intensity adjustment ring 3, then the liquid outlet 33 is located on the right side of the inner wall surface of the mixing intensity adjustment ring 3.

[0088] Similar to spiral flow channels, the liquid rotates as it moves downstream, resulting in a longer mixing time and better mixing effect between the light and heavy phases.

[0089] In the seventh type of specific implementation, such as Figures 3-6 As shown, for the same flow channel 31, the inlet 32 ​​and the outlet 33 are located in the same vertical plane.

[0090] In the seventh embodiment, the velocity of the mixed liquid at the outlet 33 can be decomposed into radial velocity and axial velocity; while in the sixth embodiment, the velocity of the mixed liquid at the outlet 33 can be decomposed into radial velocity, axial velocity and tangential velocity. The tangential velocity is perpendicular to both the axial velocity and the tangential velocity. The tangential velocity is used to make the mixed liquid move circumferentially along the annular gap 4, thereby improving the mixing intensity of the centrifugal extractor and the mass transfer efficiency between the light and heavy phase liquids.

[0091] In the above specific embodiment, the lower end of the rotating drum 1 is open, and the mixed liquid is drawn into the rotating drum 1 by the suction force generated by the rotating drum 1.

[0092] In the eighth specific embodiment, an impeller is installed on the rotating drum 1. When the rotating drum 1 rotates, it can drive the impeller to rotate, thereby increasing the suction force and better drawing the liquid into the rotating drum 1, ensuring the continuity of liquid absorption in the rotating drum 1, ensuring that the centrifugal extractor has sufficient mixing intensity, and ensuring that the light and heavy phases have high mass transfer efficiency.

[0093] In this invention, any one of the following four methods can be used to adjust the mixing intensity:

[0094] The first method involves individually changing the inner diameter of the mixing intensity adjustment ring 3;

[0095] The second method is to change the type of flow channel 31 separately when the mixing intensity adjustment ring 3 has flow channel 31.

[0096] The third option is to change the mixing intensity adjustment ring 3 without flow channel 31 to a mixing intensity adjustment ring 3 with flow channel 31, or change the mixing intensity adjustment ring 3 with flow channel 31 to a mixing intensity adjustment ring 3 without flow channel 31, while keeping the inner diameter of the mixing intensity adjustment ring 3 unchanged.

[0097] Fourth, while changing the inner diameter of the mixing intensity adjustment ring 3, change the type of the flow channel 31 of the mixing intensity adjustment ring 3 or the presence or absence of the flow channel 31.

[0098] It should be noted that the classification of specific embodiments in this utility model is based solely on specific features and does not imply that other categories do not contain this specific feature. For example, the specific embodiments of category 1-1 may have the same structure as any one of the specific embodiments of categories 2-1 and 2-2.

[0099] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model. Furthermore, in the description of this specification, specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A hybrid intensity adjustable centrifugal extractor, characterized by, The device includes a drum terminal, a fixed outer cylinder, and at least one flow channel for mixing liquids. The drum terminal includes a drum with one end located inside the outer cylinder. A mixing intensity adjustment ring is detachably installed between the outer cylinder and the drum. The outer diameter of the mixing intensity adjustment ring is adapted to the inner diameter of the outer cylinder to prevent liquid from entering between the mixing intensity adjustment ring and the outer cylinder. The annular gap between the inner wall of the mixing intensity adjusting ring and the rotating cylinder constitutes the flow channel, and / or, the mixing intensity adjusting ring is provided with at least one flow channel, the inlet of each flow channel is located on the upper end face of the mixing intensity adjusting ring, and the outlet of each flow channel is located on the inner wall or lower end face of the mixing intensity adjusting ring.

2. The mixed strength adjustable centrifugal extractor of claim 1, wherein, The flow channel is an arc-shaped flow channel.

3. The mixed strength adjustable centrifugal extractor of claim 1, wherein, The flow channel is a spiral flow channel.

4. The mixed strength adjustable centrifugal extractor of claim 1 wherein, The flow channel is a serpentine flow channel, and the serpentine flow channel makes multiple detours to extend the length of the serpentine flow channel.

5. The mixed strength adjustable centrifugal extractor of claim 1 wherein, Each flow channel includes at least two inlets, and / or each flow channel includes at least two outlets.

6. The mixed strength adjustable centrifugal extractor of claim 1 wherein, For the same flow path, the flow path includes a main flow section and at least two branch flow sections, wherein all branch flow sections are connected in parallel, and the downstream of each branch flow section is connected to the upstream of the main flow section.

7. The mixed strength adjustable centrifugal extractor according to any of claims 1 to 6, characterized in that, The liquid outlet is located on the side away from the drum body, and is positioned lower on the inner wall of the mixing intensity adjustment ring.

8. The mixed strength adjustable centrifugal extractor according to any of claims 1 to 6, characterized in that, An impeller is installed on the rotating drum.

9. The mixed-strength adjustable centrifugal extractor according to any of claims 1 to 6, characterized in that, A turbine disk is detachably mounted at the bottom of the outer cylinder.

10. The mixed-strength adjustable centrifugal extractor according to any of claims 1 to 6, characterized in that, The bottom of the outer cylinder is detachably fitted with a bottom cover.

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