Supernatant extraction device

Abstract

This invention provides a supernatant extraction device, belonging to the field of pharmaceutical equipment technology. It includes a mounting base, a connecting pipe, and an inner connecting pipe. The mounting base is fixedly installed on the tank head. The connecting pipe is rotatably connected to the mounting base. The connecting pipe has an axially arranged mounting hole, and multiple sealing blocks are arranged from top to bottom on the inner wall of the mounting hole. One side of each sealing block has an opening communicating with the mounting hole. The inner connecting pipe is installed inside the mounting hole, with its upper end for connection to a power mechanism and its lower end having a sealing structure. Multiple liquid inlet holes, each corresponding to a sealing block, are arranged at intervals along the circumference of the inner connecting pipe on its outer surface. The supernatant extraction device provided by this invention only requires rotating the connecting pipe to align the opening on the sealing block with the corresponding liquid inlet hole, achieving the purpose of connecting the mounting hole with the liquid inlet hole at a certain height, thereby realizing the function of adjusting the extraction liquid level height of the supernatant extraction device.

Description

Technical Field

[0001] This invention belongs to the field of pharmaceutical equipment technology, and more specifically, relates to a supernatant extraction device. Background Technology

[0002] In the pharmaceutical industry, various separation and purification techniques are used. In solid-solid separation applications, the difference in solubility of different solids in a solvent is often utilized for separation and purification. This organic solvent is often ethanol. The solid crystallizes out of ethanol due to solubility saturation and undergoes natural precipitation. After precipitation, the supernatant is extracted, ultimately yielding the desired product. This process is also known as alcohol precipitation, and a device for extracting the supernatant is often required. In past engineering practices, supernatant extraction devices were generally classified into two types: top-loading and side-loading. Traditional methods have several disadvantages: side-loading devices are immersed in the feed liquid, requiring a complex sealing structure, which is expensive, and the horizontal pipes can lead to liquid accumulation; while top-loading devices require the supernatant extraction pipe to be fixed, making it impossible to achieve adjustable liquid level. Summary of the Invention

[0003] The purpose of this invention is to provide a supernatant extraction device to solve the technical problem in the prior art that it is difficult to adjust the height of the extracted liquid after the supernatant extraction device is fixed.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a supernatant extraction device, comprising:

[0005] Mounting bracket, used for fixed installation on the tank head;

[0006] A connecting pipe is rotatably connected to the mounting base; the connecting pipe has an axially arranged mounting hole, and a plurality of sealing blocks are arranged from top to bottom on the inner wall of the mounting hole, and one side of the sealing block is provided with an opening communicating with the mounting hole;

[0007] An inner tube is installed in the mounting hole, with its upper end for connection to the power mechanism and its lower end having a sealing structure; the outer surface of the inner tube has multiple liquid inlet holes that correspond one-to-one with the sealing block, and each liquid inlet hole is spaced apart along the circumference of the inner tube.

[0008] In another embodiment of this application, the mounting base is provided with a threaded hole, and the outer circumference of the connecting pipe is provided with an external thread that connects to the threaded hole.

[0009] In another embodiment of this application, a handle is fixed on the outer circular surface of the connecting pipe, and the handle is located above the external thread.

[0010] In another embodiment of this application, there are two handles, symmetrically arranged on both sides of the connecting pipe.

[0011] In another embodiment of this application, the lower end of the threaded hole is provided with a first sealing groove, and a first sealing ring is provided in the first sealing groove.

[0012] In another embodiment of this application, a second sealing groove is provided in the mounting hole, the second sealing groove is located above the mounting base, and a second sealing ring is provided in the second sealing groove.

[0013] As another embodiment of this application, the inner tube is provided with a plurality of first graduation lines corresponding to each of the liquid inlet holes, and the connecting tube is provided with a second graduation line corresponding to the opening.

[0014] In another embodiment of this application, the outer circumference of the connecting pipe is provided with a through hole, and the inner pipe is provided with a screw hole corresponding to the through hole. The connecting pipe is fixedly connected to the inner pipe by a screw passing through the through hole and the screw hole.

[0015] As another embodiment of this application, the inner tube is also provided with a cleaning and disinfection hole.

[0016] In another embodiment of this application, the lower end of the lowest liquid inlet is flush with the upper end of the sealing structure.

[0017] The beneficial effects of the supernatant extraction device provided by the present invention are as follows: Compared with the prior art, the supernatant extraction device of the present invention fixes the mounting base on the tank body, then rotates the connecting pipe to the mounting base, and finally uses the inner pipe to extend into the mounting hole on the connecting pipe, so that the liquid inlet on the inner pipe corresponds to the opening on one of the sealing blocks, while the other liquid inlets are blocked by the other sealing blocks; the power mechanism is connected to the upper end of the inner pipe, and the power mechanism is started to make the supernatant in the tank enter the connecting pipe from the bottom of the connecting pipe, and then enter the inner pipe through the mounting hole, the opening on the sealing block and the liquid inlet, and the supernatant is extracted from the inner pipe by the action of the power mechanism; when the supernatant liquid level changes, it is only necessary to rotate the connecting pipe to make the opening on the sealing block correspond to the liquid inlet of the corresponding height, so as to connect the mounting hole with the liquid inlet of a certain height, thereby realizing the function of adjusting the extraction liquid level of the supernatant extraction device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 An exploded view of the supernatant extraction device provided in an embodiment of the present invention;

[0020] Figure 2 This is a front view of the supernatant extraction device provided in an embodiment of the present invention;

[0021] Figure 3 This is a top view of the supernatant extraction device provided in an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal pipe structure provided in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the mounting base provided in an embodiment of the present invention.

[0024] The following are the labeling elements in the figure:

[0025] 1. Mounting base; 11. Threaded hole; 12. First sealing groove; 13. First sealing ring; 2. Connecting pipe; 21. Mounting hole; 22. Sealing block; 221. Opening; 23. External thread; 24. Handle; 25. Second sealing ring; 26. Through hole; 3. Inner pipe; 31. Liquid inlet hole; 32. First graduation line; 33. Threaded hole; 34. Screw; 35. Cleaning and disinfection hole. Detailed Implementation

[0026] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0027] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0028] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and 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 the present invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] Please see Figures 1 to 5 The supernatant extraction device provided by the present invention will now be described. A supernatant extraction device includes a mounting base 1, a connecting pipe 2, and an inner connecting pipe 3. The mounting base 1 is fixedly installed on the tank head; the connecting pipe 2 is rotatably connected to the mounting base 1; the connecting pipe 2 has an axially arranged mounting hole 21, and a plurality of sealing blocks 22 are arranged from top to bottom on the inner wall of the mounting hole 21, with an opening 221 communicating with the mounting hole 21 on one side of each sealing block 22; the inner connecting pipe 3 is installed inside the mounting hole 21, with its upper end for connection to a power mechanism and its lower end having a sealing structure; a plurality of liquid inlet holes 31 corresponding one-to-one with the sealing blocks 22 are provided on the outer surface of the inner connecting pipe 3, and each liquid inlet hole 31 is spaced apart circumferentially along the inner connecting pipe 3.

[0031] The supernatant extraction device provided by this invention, compared with the prior art, fixes the mounting base 1 to the tank body, then rotates the connecting pipe 2 to the mounting base 1, and finally inserts the inner pipe 3 into the mounting hole 21 on the connecting pipe 2, so that the liquid inlet 31 on the inner pipe 3 corresponds to the opening 221 on one of the sealing blocks 22, while the other liquid inlets 31 are blocked by the other sealing blocks 22; the power mechanism is connected to the upper end of the inner pipe 3, and starting the power mechanism causes the supernatant in the tank to flow from the bottom of the connecting pipe 2. The supernatant enters the connecting pipe 2, and then enters the inner pipe 3 through the mounting hole 21, the opening 221 on the sealing block 22, and the inlet hole 31. Under the action of the power mechanism, the supernatant is drawn out of the inner pipe 3. When the supernatant level changes, the connecting pipe 2 only needs to be rotated to make the opening 221 on the sealing block 22 correspond to the inlet hole 31 at the corresponding height, so as to connect the mounting hole 21 with the inlet hole 31 at a certain height, thereby realizing the function of adjusting the extraction level of the supernatant extraction device.

[0032] Please see Figure 1 , Figure 2 and Figure 5As a specific embodiment of the supernatant extraction device provided by the present invention, the mounting base 1 is provided with a threaded hole 11, and the outer circumference of the connecting pipe 2 is provided with an external thread 23 that connects to the threaded hole 11. The connecting pipe 2 is rotatably connected to the mounting base 1 by means of a threaded connection. Therefore, the purpose of rotating the connecting pipe 2 can be achieved by means of the threaded connection. At the same time, the connecting pipe 2 only needs to move a distance of one thread pitch in the straight direction to move one revolution, so as to change the position of the multiple liquid inlet holes 31 corresponding to the extraction of supernatant.

[0033] Please see Figures 1 to 3 As a specific embodiment of the supernatant extraction device provided by the present invention, a handle 24 is fixed on the outer circular surface of the connecting pipe 2. The handle 24 is located above the external thread 23. The handle 24 is a tubular structure, welded and fixed on the connecting pipe 2, and extends in a direction away from the connecting pipe 2. When in use, the operator can hold the handle 24 to drive the connecting pipe 2 to rotate on the mounting base 1, thereby changing the liquid inlet hole 31 at a specific height on the inner pipe 3 and the opening 221 on the sealing block 22 in the connecting pipe 2. The operation is simple and convenient, and the accuracy is high.

[0034] Please see Figures 1 to 3 As a specific embodiment of the supernatant extraction device provided by the present invention, there are two handles 24, symmetrically arranged on both sides of the connecting tube 2. The operator can hold one handle 24 and rotate it to move the connecting tube 2 upward, while holding the other handle 24 and rotating it in the opposite direction to move the connecting tube 2 downward, making operation more convenient. The operator can also hold both handles 24 with both hands to control the rotation of the connecting tube 2, thereby enabling smooth and accurate control of the rotation of the connecting tube 2.

[0035] Please see Figure 1 and Figure 5 In one specific embodiment of the supernatant extraction device provided by the present invention, a first sealing groove 12 is provided at the lower end of the threaded hole 11, and a first sealing ring 13 is provided in the first sealing groove 12. After the connecting pipe 2 is threaded into the threaded hole 11 on the mounting base 1, the first sealing ring 13 helps to achieve a sealed connection between the connecting pipe 2 and the mounting base 1. This prevents supernatant from entering the threaded hole 11, achieving the purpose of sealing and cleaning.

[0036] Please see Figure 1 and Figure 2As a specific embodiment of the supernatant extraction device provided by the present invention, a second sealing groove is provided in the mounting hole 21. The second sealing groove is located above the mounting base 1, and a second sealing ring 25 is provided in the second sealing groove. By setting the second sealing groove on the side of the mounting hole 21 that is higher than the mounting base 1, and installing the second sealing ring 25 in the second sealing groove, after the inner tube 3 enters the mounting hole 21, the sealing connection between the inner tube 3 and the connecting tube 2 is achieved by means of the second sealing ring 25, thus achieving the purpose of sealing and cleaning.

[0037] Please see Figure 1 , Figure 2 and Figure 4 As a specific embodiment of the supernatant extraction device provided by the present invention, the inner tube 3 is provided with multiple first scale lines 32 corresponding to each inlet hole 31, and the connecting tube 2 is provided with second scale lines corresponding to the openings 221. A second scale line corresponding to the multiple openings 221 is provided on the outer surface of the connecting tube 2. The openings 221 on each sealing block 22 are in the same position. Multiple first scale lines 32 corresponding to each inlet hole 31 are provided on the outer surface of the inner tube 3 above the connecting tube 2. The multiple inlet holes 31 are spaced vertically and their circumferential positions on the inner tube 3 are also different. When the connecting tube 2 is rotated by the operating handle 24, only one of the corresponding first scale lines 32 needs to be rotated to align with the second scale line to align the inlet hole 31 at the desired height with the opening 221, thereby adjusting the height of the extracted supernatant.

[0038] Please see Figure 1 and Figure 2 As a specific embodiment of the supernatant extraction device provided by the present invention, the outer circumference of the connecting pipe 2 is provided with a through hole 26, and the inner pipe 3 is provided with a screw hole 33 corresponding to the through hole 26. The connecting pipe 2 is fixedly connected to the inner pipe 3 by a screw 34 passing through the through hole 26 and the screw hole 33. After the inner pipe 3 is installed into the mounting hole 21 of the connecting pipe 2, and the connecting hole is rotated to determine the position for extracting the supernatant, the screw hole 33 on the inner pipe 3 is coaxially aligned with the through hole 26 on the connecting pipe 2. Then, the screw 34 is threaded through the through hole 26 and the screw hole 33 to achieve a fixed connection between the inner pipe 3 and the connecting pipe 2. When it is necessary to adjust the liquid inlet hole 31 on the inner pipe 3 and the opening 221 on the corresponding sealing block 22, the screw 34 is rotated in the opposite direction to disassemble the connecting pipe 2 and the inner pipe 3. The detachable connection between the inner pipe 3 and the connecting pipe 2 is achieved by the screw 34, which is convenient to operate and has a reliable and stable connection.

[0039] Please see Figure 1As a specific embodiment of the supernatant extraction device provided by the present invention, the inner tube 3 is also provided with a cleaning and disinfection hole 35. After the supernatant extraction is completed, the inner tube 3 and the connecting tube 2 need to be cleaned. Therefore, water or steam can be introduced into the cleaning and disinfection hole 35. With the help of the liquid inlet hole 31 and the opening 221 on the sealing block 22, the cavities of the inner tube 3 and the connecting tube 2 can be cleaned together.

[0040] Please see Figure 1 In one specific embodiment of the supernatant extraction device provided by the present invention, the lower end of the lowest inlet hole 31 is flush with the upper end of the sealing structure. After the supernatant extraction is completed, the liquid in the inner tube 3 can be completely discharged from the lowest inlet hole 31 without any residual supernatant, thus enabling the inner tube 3 to have a self-draining function. Since the lower end of the inner tube 3 has a sealing structure, and the sealing structure and the inner tube 3 are an integral structure, the lowest point of the lowest inlet hole 31 is flush with the upper surface of the sealing structure.

[0041] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A supernatant extraction device, characterized in that, include: Mounting bracket, used for fixed installation on the tank head; A connecting pipe is rotatably connected to the mounting base; the connecting pipe has an axially arranged mounting hole, and a plurality of sealing blocks are arranged from top to bottom on the inner wall of the mounting hole, and one side of the sealing block is provided with an opening communicating with the mounting hole; An inner tube is installed in the mounting hole, with its upper end for connection to the power mechanism and its lower end having a sealing structure; the outer side of the inner tube has multiple liquid inlet holes that correspond one-to-one with the sealing block, and each liquid inlet hole is spaced apart along the circumference of the inner tube. The mounting base has a threaded hole, and the outer surface of the connecting pipe has an external thread that connects to the threaded hole, so that the connecting pipe is rotatably connected to the mounting base. The purpose of rotating the connecting pipe is achieved by means of the threaded connection. When the connecting pipe rotates one revolution, it moves only one pitch in the straight direction, thereby changing the position of the multiple liquid inlet holes corresponding to the extraction of supernatant.

2. The supernatant extraction device as described in claim 1, characterized in that, A handle is fixed on the outer circular surface of the connecting pipe, and the handle is located above the external thread.

3. The supernatant extraction device as described in claim 2, characterized in that, There are two handles, symmetrically arranged on both sides of the connecting pipe.

4. The supernatant extraction device as described in claim 1, characterized in that, The lower end of the threaded hole is provided with a first sealing groove, and a first sealing ring is provided in the first sealing groove.

5. The supernatant extraction device as described in claim 4, characterized in that, The mounting hole is provided with a second sealing groove, which is located above the mounting base, and a second sealing ring is provided in the second sealing groove.

6. The supernatant extraction device as described in claim 1, characterized in that, The inner tube is provided with a plurality of first scale lines corresponding to each of the liquid inlet holes, and the connecting tube is provided with a second scale line corresponding to the opening.

7. The supernatant extraction device as described in claim 1, characterized in that, The outer circumference of the connecting pipe is provided with a through hole, and the inner pipe is provided with a screw hole corresponding to the through hole. The connecting pipe is fixedly connected to the inner pipe by a screw passing through the through hole and the screw hole.

8. The supernatant extraction device as described in claim 1, characterized in that, The inner tube is also equipped with a cleaning and disinfection hole.

9. The supernatant extraction device as described in claim 1, characterized in that, The lower end of the lowest liquid inlet is flush with the upper end of the sealing structure.

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