A drum and centrifugal extractor

Abstract

The utility model relates to a kind of drum and centrifugal extractor, belong to the technical field of extractor, solve the technical problem of the structure of centrifuge, low installation efficiency or low separation efficiency.It is detachably connected by the elastic deformation of the fixed part with the clamping portion when installation, the disc is fixed in the drum body.The requirement of installation space is reduced while reducing the settling distance, increase the settling area, improve the separation effect, when the number of disc that needs to be installed is many, installer can realize installation without any installation tool, it is easy to operate, improve installation efficiency and separation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of extraction machine technology, and in particular to a rotary drum and centrifugal extraction machine. Background Technology

[0002] Centrifugal extractors are a new type of liquid-liquid extraction equipment based on the principle of efficient drum rotation. Their core function lies in utilizing the powerful centrifugal force generated by the rotating drum to rapidly mix and separate two immiscible liquids of different densities. Due to their speed and efficiency, this equipment has been widely used in various fields such as nuclear industry, chemical industry, vanadium energy storage, new energy, environmental engineering, and rare earths.

[0003] For disc centrifuges, on the one hand, the disc installation is very complicated and the efficiency is very low. On the other hand, traditional disc centrifuges generally feed liquid from the top of the centrifuge, then separate it through the disc structure and then discharge it from the top. This results in a complex centrifuge structure, a long liquid path, and low separation efficiency.

[0004] Therefore, there is an urgent need for a rotary drum and centrifugal extractor that is simple in structure, easy to install, and has good separation effect. Utility Model Content

[0005] To address the technical problems existing in the prior art, this utility model proposes the following technical solution:

[0006] A rotating drum includes a drum body, a light phase liquid outlet, a heavy phase liquid outlet, and a disc. The light phase liquid outlet and the heavy phase liquid outlet are located at the upper end of the drum body, the disc is located inside the drum body, and a liquid inlet is located at the lower end of the drum body.

[0007] Furthermore, the disc includes a fixing part, which is an elastic structure. A snap-fit ​​part is provided on the inner side wall of the drum body. During installation, the fixing part is detachably connected to the snap-fit ​​part through elastic deformation, thereby fixing the disc inside the drum body.

[0008] Furthermore, the outer diameter of the disc is smaller than the inner diameter of the inner wall of the drum body, and a channel is formed between the outer edge of the disc and the inner wall of the drum body, the channel being connected to the heavy phase liquid outlet;

[0009] Furthermore, the disc is provided with a first baffle and a hole;

[0010] Furthermore, the fixing part is made of plastic or metal;

[0011] Furthermore, the upper end of the drum body is provided with a light phase liquid outlet and a heavy phase liquid outlet, and the lower end of the drum body is provided with a liquid inlet;

[0012] Furthermore, a cavity is provided in the center of the disc;

[0013] Furthermore, a second baffle is provided inside the cavity;

[0014] Furthermore, a third baffle is provided at one end of the second baffle near the feed section.

[0015] This utility model also proposes a centrifugal extractor, which includes the aforementioned rotating drum, a housing, a first liquid outlet, a second liquid outlet, a feed section, and a power source. The first liquid outlet, the second liquid outlet, the feed section, and the rotating drum are all disposed within the housing. The feed section is located at the bottom of the housing, and the rotating drum is located at the upper end of the feed section. The power source is disposed above the housing and is rotatably connected to the rotating drum via a rotating shaft extending into the housing. The first liquid outlet and the second liquid outlet are respectively connected to the light phase liquid outlet and the heavy phase liquid outlet of the rotating drum, and the feed section is connected to the liquid inlet of the rotating drum.

[0016] Furthermore, the shell is also provided with a slag discharge port.

[0017] This utility model can achieve at least one of the following beneficial effects:

[0018] (1) By setting the liquid inlet at the bottom and the liquid outlets of the light phase liquid and the heavy phase liquid at the top, the liquid can be pre-mixed in the lower part by setting a mixing structure, and then enter the drum from the bottom for separation. This ensures the fullness of liquid mixing. The bottom inlet and top outlet setting simplifies the liquid flow path and improves the efficiency of liquid separation. Therefore, it can be applied to the need to fully mix the two solutions before separation, and has a wider range of applications.

[0019] (2) By setting up the disc and the elastic fixing part, the disc can be directly fixed on the inner wall of the drum body, which reduces the settling distance, increases the settling area, and significantly improves the separation effect. At the same time, when installing the disc inside the drum, the installer does not need to use other installation tools and can install it directly by hand. The operation is simple, the installation efficiency is improved, and the installation time is greatly reduced.

[0020] (3) Therefore, compared with traditional disc centrifuges, the middle part of the disc in this utility model does not need to be placed with installation pipes or installation components. In addition, the fluid channel between the outer edge of the disc and the inner wall of the drum can simplify the structure of the drum body. Moreover, it is not restricted by the space occupied by the installation components and the area of ​​the disc can be adjusted as needed. Since the installation space does not occupy too much of the disc area, the effective projected area of ​​the disc can be increased under the same drum size, thereby increasing the sedimentation area and significantly improving the separation effect.

[0021] (4) By making full use of the space of the cavity, a second baffle and a third baffle are set in the cavity, which can evenly disperse the flowing liquid, reduce the separation dead zone caused by uneven liquid dispersion, and thus ensure the full mixing of the liquid, and guide the light phase liquid of the fluid to move upward, improve the effect of the separation driving force on the liquid, prevent the liquid back mixing, and thus achieve the purpose of further improving the separation effect.

[0022] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing this invention. The objectives and other advantages of this invention can be realized and obtained from the details specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0023] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0024] Figure 1 This is a schematic diagram of the structure of the rotary drum and centrifugal extractor according to Embodiment 1 of this utility model;

[0025] Figure 2 yes Figure 1 A magnified view of part A in the middle;

[0026] Figure 3 yes Figure 1 Schematic diagram of the disc structure in the middle BB cross section;

[0027] Figure 4 This is a schematic diagram of the disc structure in Embodiment 2 of this utility model;

[0028] Figure 5 This is a schematic diagram of the centrifugal extractor in Embodiment 3 of this utility model;

[0029] Figure 6 This is a schematic diagram of the fluid flow direction of the centrifugal extractor in Embodiment 3 of this utility model;

[0030] In the diagram: 1-Drum body, 2-Disc, 21-Fixing part, 22-First baffle, 23-Hole, 24-Cavity, 25-Second baffle, 26-Third baffle, 3-Channel, 4-Shell, 5-Power source, 6-Second liquid outlet, 7-First liquid outlet, 8-Liquid inlet, 9-Mixed liquid, 10-Heavy phase liquid, 11-Light phase liquid. Detailed Implementation

[0031] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0032] Example 1:

[0033] See Figures 1-2 This utility model proposes a rotating drum placed in a centrifugal extractor, specifically including a drum body 1, a light phase liquid outlet, a heavy phase liquid outlet, and a disc 2. The light phase liquid outlet and the heavy phase liquid outlet are located at the upper end of the drum body 1, the disc 2 is located inside the drum body 1, and the lower end of the drum body 1 is provided with a liquid inlet.

[0034] On the one hand, by setting up a disc structure, the discs can reduce the settling distance, enabling the centrifugal extractor to achieve good separation results. On the other hand, by placing the liquid inlet at the bottom of the device and the liquid outlets for the light and heavy phases at the top, the liquids can be pre-mixed at the bottom using a mixing structure before entering the drum for separation. This ensures thorough mixing of the liquids. Furthermore, the bottom-inlet and top-outlet configuration reduces the liquid flow path, simplifies the liquid flow path, and thus improves the efficiency of liquid separation. Therefore, it is suitable for applications requiring thorough mixing of two solutions before separation, making it applicable to a wider range of scenarios.

[0035] Furthermore, the disc 2 includes a fixing part 21, which is an elastic structure. A snap-fit ​​part is provided on the inner side wall of the drum body. During installation, the fixing part 21 is detachably connected to the snap-fit ​​part through elastic deformation, thereby fixing the disc 2 inside the drum body 1.

[0036] Because the fixing part 21 of the disc 2 has a certain degree of elasticity, when installing the disc 2, the installer does not need any installation tools and can directly deform the disc 2 by hand, thus placing the disc 2 into the locking part on the inner side wall of the drum. After placement, because the fixing part 21 is an elastic structure, it can reset and stably lock into the drum, making the disc 2 stably fixed in the drum body 1. When it is necessary to reinstall, replace, or remove the disc, the fixing part 21 in the locking part can be elastically deformed and then detached from the locking part, realizing a detachable connection between the fixing part 21 and the locking part.

[0037] When multiple discs need to be installed, the snap-fit ​​installation method reduces the difficulty of operation for installers, improves installation efficiency, and significantly reduces installation time.

[0038] It should be noted that since the disc 2 is connected to the inner wall of the drum body 1 through the fixing part 21 provided on the outer edge, it does not need to reserve a large installation space in the center like traditional discs. Moreover, it is not restricted by the space occupied by the installation parts and can adjust the area of ​​the disc as needed. Since the installation space does not occupy too much of the disc area, the effective projected area of ​​the disc can be increased under the same drum size, thereby increasing the sedimentation area of ​​the disc and significantly improving the separation effect.

[0039] See Figure 2 Furthermore, the outer diameter of the disc 2 is smaller than the inner diameter of the inner wall of the drum body 1, and a channel 3 is formed between the outer edge of the disc 2 and the inner wall of the drum body 1. The channel 3 is connected to the heavy phase liquid outlet.

[0040] With the setting of channel 3, the heavy phase liquid can flow directly upward along the channel between the inner wall of the drum body under the action of centrifugal force and finally flow out of the heavy phase liquid outlet. This simplifies the setting of the internal structure of the drum body and reduces the manufacturing cost.

[0041] See Figure 3 Furthermore, the discs are provided with a first baffle 22 and holes 23; the first baffle 22 can effectively guide the light phase liquid to move upward, and the holes 23 can make the liquid between each layer of discs flow quickly, improving the separation efficiency. The number and arrangement of the first baffle 22 and holes 23 can be set according to actual needs, such as four evenly distributed ones, or other numbers.

[0042] Furthermore, the fixing part 21 is made of plastic or metal; the material of the fixing part 21 is a material that can be slightly elastically deformed, such as plastic and metal with a certain degree of elasticity, and the material can be selected according to the properties of the liquid being separated.

[0043] Furthermore, a cavity 24 is provided in the center of the disc 2; the cavity 24 is used for liquid passage and does not require the placement of installation pipes or installation components. In conjunction with the fluid channel between the outer edge of the disc and the inner wall of the drum, the structure of the drum can be simplified, and the area of ​​the disc can be adjusted as needed without being restricted by the space occupied by installation components. Since the installation space does not occupy too much of the disc area, the effective projected area of ​​the disc can be increased under the same drum size, thereby increasing the settling area and significantly improving the separation effect.

[0044] Example 2:

[0045] See Figure 4Based on Embodiment 1, a second baffle 25 is further provided inside the cavity 24. A third baffle 26 is provided at the end of the second baffle 25 near the feed section 8. The third baffle 26 is located above the feed section 8 and is circular or annular. The third baffle 26 is arranged basically parallel to the disc 2. The specific number of the second baffle 25 and the third baffle 26 is not specifically limited here, but the more second baffles 25 there are, the more separation chambers there are. This allows the liquid to be separated into independent chambers after entering, and the volume, flow rate, and other properties of the liquid in each chamber are stable, resulting in a good separation effect. Furthermore, due to the setting of the second baffle 25, it can be used to receive and guide the liquid, making the upward flow rate of the liquid faster. The guiding effect of the second baffle 25 will make the centrifugal drive efficiency better.

[0046] It should be noted that the third baffle 26 is located above the feed section 8, and the mixed liquid will be blocked in advance when it flows upward. Both the second baffle 25 and the third baffle 26 are fixedly connected to the disc 2. The fixed connection can be a detachable connection or welding. Specifically, a mounting hole for the second baffle 25 can be opened on the disc 2. After the disc is installed, the second baffle 25 is inserted into the mounting hole. Alternatively, before installing the disc, the second baffle 25 can be fixed first, and then the disc 2 can be fixed to the second baffle through the mounting hole. Then, the second baffle 25 and the disc 2 can be connected by bolts or welding. Alternatively, the second baffle 25 can be made of a material with a certain degree of elasticity and fixedly connected to the disc 2 by an interference fit. The second baffle 25 and the third baffle 26 are also fixedly connected by detachable methods such as bolts or welding. Therefore, through the fixed connection method, the second baffle 25 and the third baffle 26 can rotate with the drum. When the mixed liquid flows upward, it first contacts the third baffle 26. As the third baffle 26 and the drum rotate, the mixed liquid will undergo preliminary separation. The initially separated heavy phase liquid flows along the lower end of the third baffle 26 toward the inner wall of the drum, while the initially separated light phase liquid flows along the upper end of the third baffle 26 toward the axis of the drum.

[0047] By setting the second baffle 25 and the third baffle 26, the flowing liquid can be evenly dispersed, reducing the separation dead zone caused by uneven liquid dispersion, thereby ensuring sufficient mixing of the liquid and guiding the light phase liquid to move upward, improving the effect of the separation driving force on the liquid, and preventing back mixing of the liquid.

[0048] Since the disc 2 and the inner wall of the drum are connected together by the fixing part 21 and the snap-fit ​​part, compared with the traditional disc centrifuge, there is no need to place installation pipes or installation components in the middle part. Therefore, the space of this cavity can be fully utilized. The second baffle 25 is set in the cavity. The setting of the second baffle 25 can evenly disperse the flowing liquid, reduce the separation dead zone caused by uneven liquid dispersion, and thus ensure the full mixing of the liquid. It also guides the light phase liquid to move upward, improves the effect of the separation driving force on the liquid, prevents back mixing of the liquid, and thus achieves the purpose of further improving the separation effect.

[0049] Example 3:

[0050] See Figure 5 Based on Embodiments 1 and 2, this utility model also proposes a centrifugal extractor, which includes the aforementioned rotating drum, a housing 4, a first liquid outlet 7, a second liquid outlet 6, a feed section 8, and a power source 5. The first liquid outlet 7, the second liquid outlet 6, the feed section 8, and the rotating drum are all disposed inside the housing 4. The feed section 8 is located at the bottom of the housing 4, and the rotating drum is located at the upper end of the feed section 8. The power source 5 is disposed above the housing 4. The power source 5 is rotatably connected to the rotating drum through a rotating shaft extending into the housing 4. The power source 5 provides centrifugal force to the rotating drum for separating the two-phase liquid. The first liquid outlet 7 and the second liquid outlet 6 are respectively connected to the light phase liquid outlet and the heavy phase liquid outlet of the rotating drum. The feed section 8 is connected to the liquid inlet of the rotating drum.

[0051] See Figure 6 The mixed liquid 9 enters the drum through the feed section 8. Under the centrifugal force of the drum, the drum separates the mixed liquid 9 into a light phase liquid 11 and a heavy phase liquid 10, such as... Figure 5 As indicated by the arrows showing the direction of the liquid flow, specifically, under the action of centrifugal force, the lighter liquid 11, due to its lower density, will flow towards the axis of the drum. Since centrifugal force is a form of supergravity, the lighter liquid 11 will also flow upwards, finally exiting the centrifugal extractor through the first outlet 7. The heavier liquid 10, with its lower density, will flow towards the inner wall of the drum under the action of centrifugal force. Again, due to the supergravity of centrifugal force, the heavier liquid 10 will flow upwards, finally exiting the centrifugal extractor through the second outlet 6, thus completing the separation of the two phases.

[0052] Furthermore, the feed section 8 is also provided with a mixing structure for pre-mixing the liquid entering the housing.

[0053] Because the feed section is located at the bottom of the casing, pre-mixing can be performed by incorporating a mixing structure at the feed section before the solution enters the drum from the bottom for separation. Therefore, it is suitable for applications requiring thorough mixing of two solutions before separation, thus broadening its applicability.

[0054] Furthermore, the shell 4 is also provided with a slag discharge port. For situations requiring solid-liquid separation, a slag discharge port is provided on the shell for discharging solid slag, thereby achieving solid-liquid separation.

[0055] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotating drum comprising a drum body (1), a light phase liquid outlet, a heavy phase liquid outlet, and a disc (2), characterized in that: The light phase liquid outlet and the heavy phase liquid outlet are located at the upper end of the drum body (1), the disc (2) is located inside the drum body (1), and the lower end of the drum body (1) is provided with a liquid inlet.

2. A rotating drum as described in claim 1, characterized in that: The disc (2) includes a fixing part (21), which is an elastic structure. A snap-fit ​​part is provided on the inner side wall of the drum body (1). During installation, the fixing part (21) is detachably connected to the snap-fit ​​part through elastic deformation, thereby fixing the disc (2) inside the drum body (1).

3. A rotating drum as described in claim 1 or 2, characterized in that: The outer diameter of the disc (2) is smaller than the inner diameter of the inner wall of the drum body (1). A channel (3) is formed between the outer edge of the disc (2) and the inner wall of the drum body (1). The channel (3) is connected to the outlet of the heavy phase liquid.

4. A rotating drum as described in claim 1 or 2, characterized in that: The disc (2) is provided with a first baffle (22) and a hole (23).

5. A rotating drum as described in claim 2, characterized in that: The fixing part (21) is made of plastic or metal.

6. A drum as described in any one of claims 1-4, characterized in that: The disc (2) has a cavity (24) at its center.

7. A rotating drum as described in claim 6, characterized in that: A second baffle (25) is provided inside the cavity (24).

8. A rotating drum as described in claim 7, characterized in that: The second baffle (25) is provided with a third baffle (26) at one end near the liquid inlet.

9. A centrifugal extractor comprising a rotary drum as described in any one of claims 1-7, characterized in that: It also includes a housing (4), a first liquid outlet (7), a second liquid outlet (6), a feed section (8), and a power source (5). The power source (5) is located above the housing (4) and is rotatably connected to the drum via a rotating shaft extending into the housing (4). The drum is located at the upper end of the feed section (8). The first liquid outlet (7), the second liquid outlet (6), the feed section (8), and the drum are all located inside the housing (4). The first liquid outlet (7) and the second liquid outlet (6) are respectively connected to the light phase liquid outlet and the heavy phase liquid outlet of the drum. The feed section (8) is connected to the liquid inlet of the drum.

10. A centrifugal extractor as described in claim 9, characterized in that: The shell (4) is also provided with a slag discharge port.

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