Full-automatic liquid-liquid extraction concentrator

Abstract

The utility model relates to the technical field of extraction, and provides a full-automatic liquid-liquid extraction concentrator. Comprising an extraction box, a concentration box arranged on one side of the extraction box, a control cabinet arranged on the other side of the extraction box, a fixed shell mounted at the top of the control cabinet, a plurality of extraction liquid bottles arranged in the fixed shell, a plurality of extraction pipes arranged in the extraction box and a plurality of nitrogen blowing pipes arranged in the concentration box, through the extraction mechanism, the extraction three-way valve, the concentration three-way valve and the flow dividing mechanism, extraction liquid in the extraction liquid bottle can be added into the extraction pipe, then the vibration mechanism drives the fixing support to vibrate up and down, and therefore the extraction liquid in the extraction pipe and liquid can be fully mixed, and the extraction purpose is achieved; the extraction liquid in the extraction pipe can be added into the nitrogen blowing pipe and then enters the nitrogen blowing pipe through the gas path pipe and the flow dividing mechanism after being externally connected with a gas path to perform nitrogen blowing concentration on the solvent in the nitrogen blowing pipe, so that the device is diversified in function.

Description

Technical Field

[0001] This utility model relates to the field of extraction technology, specifically to a fully automatic liquid-liquid extraction and concentration instrument. Background Technology

[0002] Extraction, also known as solvent extraction or liquid-liquid extraction, is a unit operation that separates a mixture by utilizing the different solubilities of its components in a solvent. Specifically, it utilizes the difference in solubility or partition coefficients of substances in two immiscible (or slightly soluble) solvents to transfer a solute from one solvent to another. It is widely used in chemical, metallurgical, and food industries, and is also common in the petroleum refining industry. The operation of separating the two immiscible liquids after extraction is called liquid-liquid extraction.

[0003] However, existing extractors and concentrators are two different instruments. When in use, they have limited functions, each item needs to be performed separately, and too much manual intervention is required, which wastes time, reduces detection efficiency, and increases costs. Therefore, a fully automated liquid-liquid extraction and concentrator is needed. Utility Model Content

[0004] This invention proposes a fully automated liquid-liquid extraction and concentration instrument, which solves the problems of limited functionality, the need for separate operation of each item, excessive manual intervention, which wastes time, reduces detection efficiency, and increases costs in related technologies.

[0005] The technical solution of this utility model is as follows: A fully automatic liquid-liquid extraction and concentration instrument, comprising: an extraction box, a concentration box disposed on one side of the extraction box, a control cabinet disposed on the other side of the extraction box, a fixed shell installed on the top of the control cabinet, a plurality of extraction bottles disposed inside the fixed shell, a plurality of extraction tubes disposed inside the extraction box, and a plurality of nitrogen blowing tubes disposed inside the concentration box.

[0006] The top of both the extraction tank and the concentration tank is provided with an extraction mechanism. One end of each extraction mechanism is provided with an extraction three-way valve and a concentration three-way valve. The two extraction mechanisms are connected to each other through the extraction three-way valve. The flow pipes on the multiple extraction bottles are all connected to the extraction mechanism on the extraction tank.

[0007] The inner top walls of both the extraction tank and the concentration tank are equipped with lifting mechanisms, and each of the two lifting mechanisms is equipped with a diversion mechanism. One end of each of the two diversion mechanisms is connected to the extraction three-way valve and the concentration three-way valve, respectively.

[0008] The extraction tank and the concentration tank are respectively equipped with a fixed support and a water bath device inside, and the extraction tube is inserted into the fixed buckle on the fixed support, and the nitrogen blowing tube is inserted into the inner groove of the water bath device.

[0009] The bottom wall of the extraction tank is provided with a vibration mechanism, and the fixed bracket is fixedly installed on the top of the vibration mechanism.

[0010] One end of the concentration three-way valve on the concentration tank is fixedly connected to an air passage pipe, and the other end of the air passage pipe is connected to an external air source.

[0011] Preferably, the extraction mechanism includes a metering pump, the input end of which is fixedly connected to an extraction tube, the output end of which is fixedly connected to a delivery tube, and the extraction three-way valve and the concentration three-way valve are respectively fixedly connected to the two delivery tubes, and the flow path pipes on the plurality of extraction bottles are all connected to the extraction tube on the extraction box.

[0012] Preferably, each of the multiple extraction bottles is equipped with a solenoid valve on its flow path.

[0013] Preferably, the vibration mechanism includes a fixed frame that is fixedly installed on the bottom wall of the extraction tank, a cross bar that is provided through the fixed frame, and a fixed bracket that is fixedly installed on the top of the cross bar. A driving mechanism is provided on the fixed frame and the driving mechanism is connected to the cross bar.

[0014] Preferably, the drive mechanism includes a first motor fixedly mounted on the fixed frame, a connecting rod fixedly connected to the output end of the first motor, a cam fixedly connected to the bottom of the connecting rod, and the bottom of the cross rod connected to the cam.

[0015] Preferably, the bottom of the cross bar is provided with a ball groove, the inside of the ball groove is provided with a ball, and the outer wall of the ball is in contact with the cam to realize the vibration extraction function.

[0016] Preferably, a second motor is fixedly mounted on the fixed frame via a mounting bracket. The output end of the second motor is fixedly connected to a driving synchronous pulley. A hollow cylinder is passed through the fixed frame and is rotatably connected to the fixed frame. The cross rod is located inside the hollow cylinder. A driven synchronous pulley is fixedly mounted on the outer wall of the hollow cylinder, and the driving synchronous pulley and the driven synchronous pulley are tensioned and meshed. The second motor is used to drive the hollow cylinder to rotate, thereby realizing the low-speed centrifugation function.

[0017] Preferably, the inner wall of the hollow cylinder is fixedly mounted with multiple strip plates in a circular array, and the outer wall of the cross rod is provided with multiple strip grooves in a circular array, and the strip plates are interlocked with the strip grooves.

[0018] Preferably, the diversion mechanism includes hoses fixedly installed at one end of the extraction three-way valve and the concentration three-way valve, forming a collection of multiple diversion hoses. The other end of each hose is fixedly connected to a connecting pipe, and multiple diversion stainless steel metal tubes are sequentially fixedly installed on the outer wall of the connecting pipe in a circular array.

[0019] Preferably, the lifting mechanism includes an electric telescopic rod, the bottom of which is fixedly mounted with a fixed plate, and the connecting pipe is installed through the fixed plate.

[0020] The working principle and beneficial effects of this utility model are as follows:

[0021] The extraction mechanism, extraction three-way valve, concentration three-way valve, and diversion mechanism enable the extractant in the extraction bottle to be added into the extraction tube. Then, the vibration mechanism drives the fixed support to vibrate up and down, so that the extractant and liquid in the extraction tube can be fully mixed to achieve the extraction purpose. The extractant in the extraction tube can also be added into the nitrogen blowing tube. Then, the external gas line enters the nitrogen blowing tube through the gas line pipe and the diversion mechanism to concentrate the solvent in the nitrogen blowing tube with nitrogen, thus making the device multifunctional. Attached Figure Description

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed in this utility model;

[0024] Figure 2 This invention provides a cross-sectional three-dimensional structural diagram of the extraction box.

[0025] Figure 3 A three-dimensional structural diagram of the vibration mechanism of this utility model is provided;

[0026] Figure 4 A three-dimensional structural schematic diagram of the second motor is provided for this utility model;

[0027] Figure 5 A three-dimensional structural diagram of the diversion mechanism proposed in this utility model is provided;

[0028] Figure 6 This utility model provides a cross-sectional perspective view of the water bath device.

[0029] Figure 7A three-dimensional structural diagram of the hollow cylinder is provided for this utility model.

[0030] In the diagram: 1. Extraction tank; 2. Concentration tank; 3. Control cabinet; 4. Mounting shell; 5. Extract bottle;

[0031] Extraction mechanism; 61. Metering pump; 62. Extraction pipe; 63. Delivery pipe;

[0032] Gas tubing;

[0033] Diverting mechanism; 81. Hose; 82. Connecting pipe; 83. Diverting stainless steel metal pipe;

[0034] Lifting mechanism; 91. Electric telescopic mast; 92. Fixed plate;

[0035] 11. Fixed support; 12. Water bath device; 13. Nitrogen blowing pipe;

[0036] Vibration mechanism; 1301, fixed frame; 1302, cross bar; 1303, drive mechanism; 13031, first motor; 13032, connecting rod; 13033, cam;

[0037] 14. Extraction tube; 15. Ball bearing; 16. Second motor; 17. Driving synchronous pulley; 18. Hollow cylinder; 19. Driven synchronous pulley; 20. Strip plate; 21. Strip groove; 22. Extraction three-way valve; 23. Concentration three-way valve. Detailed Implementation

[0038] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model. Example 1

[0039] Please see Figure 1 - Figure 7 A fully automatic liquid-liquid extraction and concentration apparatus includes: an extraction chamber 1, a concentration chamber 2 disposed on one side of the extraction chamber 1, a control cabinet 3 disposed on the other side of the extraction chamber 1, a fixed shell 4 mounted on the top of the control cabinet 3, a plurality of extraction bottles 5 disposed inside the fixed shell 4, a plurality of extraction tubes 14 disposed inside the extraction chamber 1, and a plurality of nitrogen blowing tubes 12 disposed inside the concentration chamber 2.

[0040] Both the top of the extraction tank 1 and the concentration tank 2 are equipped with extraction mechanisms 6. One end of each extraction mechanism 6 is equipped with an extraction three-way valve 22 and a concentration three-way valve 23. The two extraction mechanisms 6 are connected to each other through the extraction three-way valve 22. The flow pipes on multiple extraction bottles 5 are connected to the extraction mechanisms 6 on the extraction tank 1.

[0041] Solenoid valves are installed on the flow path tubes of multiple extraction bottles 5;

[0042] Both the extraction tank 1 and the concentration tank 2 are equipped with lifting mechanisms 9 on their inner top walls. Both lifting mechanisms 9 are equipped with diversion mechanisms 8, and one end of each diversion mechanism 8 is connected to the extraction three-way valve 22 and the concentration three-way valve 23, respectively.

[0043] The extraction tank 1 and the concentration tank 2 are respectively equipped with a fixed bracket 10 and a water bath device 11. The extraction tube 14 is inserted into the fixed buckle on the fixed bracket 10, and the nitrogen blowing tube 12 is inserted into the inner groove of the water bath device 11.

[0044] The inner bottom wall of the extraction box 1 is provided with a vibration mechanism 13, and the fixed bracket 10 is fixedly installed on the top of the vibration mechanism 13.

[0045] One end of the concentration three-way valve 23 on the concentration tank 2 is fixedly connected to the gas pipe 7, and the other end of the gas pipe 7 is connected to an external gas source.

[0046] This utility model provides a fully automatic liquid-liquid extraction and concentration apparatus. In use, as needed, the control cabinet 3 controls the opening of the solenoid valve on the flow path of one of the extraction bottles 5. Then, the extraction mechanism 6 on the extraction tank 1 extracts the extract from the bottle 5. The extract then passes through the extraction three-way valve 22 and the diversion mechanism 8 on the extraction tank 1, allowing the extract to be added into the extraction tube 14. After completion, the control cabinet 3 controls the lifting mechanism 9 to raise the diversion mechanism 8 away from the extraction tube 14. Then, the vibration mechanism 13 causes the extraction tube 14 to vibrate up and down, ensuring thorough mixing of the extract and liquid within the extraction tube 14, achieving the extraction purpose. Finally, the control cabinet 3 controls the lifting mechanism 9 in both the extraction tank 1 and the concentration tank 2 to activate the diversion mechanism. The flow path of the extraction mechanism 6 is closed by the extraction three-way valve 22 on the extraction tank 1. Then, the extractant in the extraction tube 14 is extracted by the extraction mechanism 6 on the concentration tank 2 and the diversion mechanism 8 on the extraction tank 1. At the same time, the extracted extractant is added to the nitrogen blowing pipe 12 by the concentration three-way valve 23 on the concentration tank 2 and the diversion mechanism 8. Then, the control cabinet 3 controls the concentration three-way valve 23 on the concentration tank 2 to close the flow path of the extraction mechanism 6. After that, the external gas line enters the water bath device 11 through the gas line pipe 7 and its pressure dividing valve and diversion mechanism 8 for nitrogen blowing concentration. At the same time, the mechanism on the extraction tank 1 repeats the above steps to enter the next extraction process, so that the device can perform both extraction and concentration.

[0047] Additionally, it should be noted that the extraction tube 14 is designed with a pre-cut gasket to facilitate the addition of liquid by the diversion mechanism 8, while the oscillating extraction prevents the liquid from flowing out and being consumed.

[0048] Furthermore, the extraction mechanism 6 includes a metering pump 61, with an extraction pipe 62 fixedly connected to the input end of the metering pump 61 and a delivery pipe 63 fixedly connected to the output end of the metering pump 61. The extraction three-way valve 22 and the concentration three-way valve 23 are respectively fixedly connected to the two delivery pipes 63, and the flow path pipes on the multiple extraction bottles 5 are all connected to the extraction pipe 62 on the extraction box 1.

[0049] Specifically, the extractant in the extract bottle 5 can be extracted by the metering pump 61 and the extraction tube 62 on the extraction tank 1, and then the extractant can be added to the extraction tube 14 for extraction by the delivery tube 63. Then, the extractant in the extraction tube 14 can be transferred to the nitrogen blowing tube 12 for concentration by the cooperation of the metering pump 61, the extraction tube 62 and the delivery tube 63 on the concentration tank 2.

[0050] Furthermore, the vibration mechanism 13 includes a fixed frame 1301 fixedly installed on the bottom wall of the extraction tank 1. A cross rod 1302 is provided through the fixed frame 1301, and a fixed bracket 10 is fixedly installed on the top of the cross rod 1302. A drive mechanism 1303 is provided on the fixed frame 1301, and the drive mechanism 1303 is connected to the cross rod 1302.

[0051] Specifically, the drive mechanism 1303 drives the cross rod 1302 inserted on the fixed frame 1301 to move up and down, thereby enabling the fixed support 10 to drive the extraction tube 14 to vibrate up and down, so that the extract liquid and liquid in the extraction tube 14 can be fully mixed to achieve the extraction purpose.

[0052] Furthermore, the drive mechanism 1303 includes a first motor 13031 fixedly mounted on the fixed frame 1301. The output end of the first motor 13031 is fixedly connected to a connecting rod 13032. The bottom of the connecting rod 13032 is fixedly connected to a cam 13033, and the bottom of the cross rod 1302 is connected to the cam 13033.

[0053] Specifically, the first motor 13031 drives the connecting rod 13032, and then the connecting rod 13032 drives the cam 13033 to rotate, so that the cross rod 1302 can move up and down under the action of the cam 13033.

[0054] Furthermore, a ball groove is provided at the bottom of the cross bar 1302, and a ball 15 is provided inside the ball groove. The outer wall of the ball 15 is in contact with the cam 13033 to realize the vibration extraction function.

[0055] Specifically, the ball bearing 15 reduces the friction between the cross bar 1302 and the cam 13033, thereby enabling the cross bar 1302 to rise and fall easily.

[0056] Furthermore, the diversion mechanism 8 includes a hose 81 that is fixedly installed at one end of the extraction three-way valve 22 and the concentration three-way valve 23, forming a collection of multiple diversion hoses. The other end of the hose 81 is fixedly connected to a connecting pipe 82, and multiple diversion stainless steel metal pipes 83 are sequentially fixedly installed on the outer wall of the connecting pipe 82 in a circular array.

[0057] Specifically, the extract can be diverted into multiple extraction tubes 14 or nitrogen blowing tubes 12 via the hose 81, connecting tube 82 and diversion stainless steel metal tube 83. At the same time, the lifting mechanism 9 can drive the connecting tube 82 and diversion stainless steel metal tube 83 to rise and fall without affecting the diversion.

[0058] Furthermore, the lifting mechanism 9 includes an electric telescopic rod 91, with a fixed plate 92 fixedly installed at the bottom of the electric telescopic rod 91, and a connecting pipe 82 passing through and installed on the fixed plate 92.

[0059] Specifically, the electric telescopic rod 91 drives the fixed plate 92 to descend, allowing the extractant to enter the extraction tube 14 and the nitrogen blowing tube 12. When no additional liquid is needed, the electric telescopic rod 91 drives the fixed plate 92 to rise, thereby moving the diversion stainless steel metal tube 83 away from the extraction tube 14 and the nitrogen blowing tube 12. This allows the fixed support 10 to rotate and centrifuge for stratification, and also makes it easier to remove the nitrogen blowing tube 12 from the water bath device 11. Example 2

[0060] Based on Embodiment 1, in this embodiment: a second motor 16 is fixedly mounted on the fixed frame 1301 via a mounting bracket. The output end of the second motor 16 is fixedly connected to an active synchronous wheel 17. A hollow cylinder 18 is provided through the fixed frame 1301, and the hollow cylinder 18 is rotatably connected to the fixed frame 1301. A cross rod 1302 is located inside the hollow cylinder 18. A driven synchronous wheel 19 is fixedly mounted on the outer wall of the hollow cylinder 18, and the active synchronous wheel 17 and the driven synchronous wheel 19 are tensioned and meshed. The second motor 16 is used to drive the hollow cylinder 18 to rotate, thereby realizing the low-speed centrifugal function. Multiple strip plates 20 are fixedly mounted in a circular array on the inner wall of the hollow cylinder 18. Multiple strip grooves 21 are opened in a circular array on the outer wall of the cross rod 1302, and the strip plates 20 and the strip grooves 21 are interlocked.

[0061] The technical solution provided in this embodiment is as follows: the second motor 16 drives the active synchronous wheel 17 to rotate, and then the rotating active synchronous wheel 17 drives the driven synchronous wheel 19 through the synchronous belt, so that the hollow cylinder 18 rotatably mounted on the fixed frame 1301 can rotate. Then, the rotating hollow cylinder 18, with the cooperation of the strip plate 20 and the strip groove 21, can drive the cross rod 1302 and the fixed bracket 10 to rotate, thereby achieving the centrifugation function, which can make the sample liquid and the extract liquid in the extraction tube 14 quickly separate into layers and prevent emulsification.

[0062] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A fully automated liquid-liquid extraction and concentration apparatus, characterized in that, include: Extraction box (1), concentration box (2) set on one side of extraction box (1), control cabinet (3) set on the other side of extraction box (1), fixed shell (4) installed on the top of control cabinet (3), multiple extraction bottles (5) set inside fixed shell (4), multiple extraction tubes (14) set inside extraction box (1), and multiple nitrogen blowing tubes (12) set inside concentration box (2). The top of both the extraction tank (1) and the concentration tank (2) is provided with an extraction mechanism (6). One end of each extraction mechanism (6) is provided with an extraction three-way valve (22) and a concentration three-way valve (23). The two extraction mechanisms (6) are connected to each other through the extraction three-way valve (22). The flow pipes on the multiple extraction bottles (5) are all connected to the extraction mechanism (6) on the extraction tank (1). The inner top walls of the extraction tank (1) and the concentration tank (2) are provided with lifting mechanisms (9), and the two lifting mechanisms (9) are provided with diversion mechanisms (8), and one end of the two diversion mechanisms (8) is connected to the extraction three-way valve (22) and the concentration three-way valve (23) respectively. The extraction tank (1) and the concentration tank (2) are respectively provided with a fixed bracket (10) and a water bath device (11), and the extraction tube (14) is inserted into the fixed buckle on the fixed bracket (10), and the nitrogen blowing tube (12) is inserted into the inner groove of the water bath device (11). The inner bottom wall of the extraction box (1) is provided with a vibration mechanism (13), and the fixed bracket (10) is fixedly installed on the top of the vibration mechanism (13); One end of the concentration three-way valve (23) on the concentration tank (2) is fixedly connected to a gas pipe (7), and the other end of the gas pipe (7) is connected to an external gas source.

2. The fully automated liquid-liquid extraction and concentration apparatus according to claim 1, characterized in that: The extraction mechanism (6) includes a metering pump (61), the input end of which is fixedly connected to an extraction tube (62), the output end of which is fixedly connected to a delivery tube (63), and the extraction three-way valve (22) and the concentration three-way valve (23) are respectively fixedly connected to the two delivery tubes (63). The flow path pipes on the multiple extraction bottles (5) are all connected to the extraction tube (62) on the extraction box (1).

3. The fully automated liquid-liquid extraction and concentration apparatus according to claim 1, characterized in that: Each of the extraction bottles (5) is equipped with a solenoid valve on its flow path.

4. The fully automated liquid-liquid extraction and concentration apparatus according to claim 1, characterized in that: The vibration mechanism (13) includes a fixed frame (1301) fixedly installed on the bottom wall of the extraction tank (1), a cross rod (1302) is provided through the fixed frame (1301), and a fixed bracket (10) is fixedly installed on the top of the cross rod (1302). A drive mechanism (1303) is provided on the fixed frame (1301), and the drive mechanism (1303) is connected to the cross rod (1302).

5. The fully automated liquid-liquid extraction and concentration apparatus according to claim 4, characterized in that: The drive mechanism (1303) includes a first motor (13031) fixedly mounted on the fixed frame (1301). The output end of the first motor (13031) is fixedly connected to a connecting rod (13032). The bottom of the connecting rod (13032) is fixedly connected to a cam (13033), and the bottom of the cross rod (1302) is connected to the cam (13033).

6. The fully automated liquid-liquid extraction and concentration apparatus according to claim 5, characterized in that: The bottom of the cross bar (1302) is provided with a ball groove, and a ball (15) is provided inside the ball groove. The outer wall of the ball (15) is in contact with the cam (13033) to realize the vibration extraction function.

7. The fully automated liquid-liquid extraction and concentration apparatus according to claim 5, characterized in that: A second motor (16) is fixedly mounted on the fixed frame (1301) via a mounting bracket. The output end of the second motor (16) is fixedly connected to an active synchronous pulley (17). A hollow cylinder (18) is provided through the fixed frame (1301), and the hollow cylinder (18) is rotatably connected to the fixed frame (1301). The cross rod (1302) is located inside the hollow cylinder (18). A driven synchronous pulley (19) is fixedly mounted on the outer wall of the hollow cylinder (18), and the active synchronous pulley (17) and the driven synchronous pulley (19) are tensioned and meshed. The second motor (16) is used to drive the hollow cylinder (18) to rotate, thereby realizing the low-speed centrifugal function.

8. The fully automated liquid-liquid extraction and concentration apparatus according to claim 7, characterized in that: The inner wall of the hollow cylinder (18) is fixedly installed with multiple strip plates (20) in a circular array, and the outer wall of the cross rod (1302) is provided with multiple strip grooves (21) in a circular array, and the strip plates (20) and the strip grooves (21) are interlocked.

9. The fully automated liquid-liquid extraction and concentration apparatus according to claim 1, characterized in that: The diversion mechanism (8) includes a hose (81) fixedly installed at one end of the extraction three-way valve (22) and the concentration three-way valve (23), which is a collection of multiple diversion hoses. The other end of the hose (81) is fixedly connected to a connecting pipe (82). Multiple diversion stainless steel metal pipes (83) are fixedly installed in a circular array on the outer wall of the connecting pipe (82).

10. The fully automated liquid-liquid extraction and concentration apparatus according to claim 9, characterized in that: The lifting mechanism (9) includes an electric telescopic rod (91), a fixed plate (92) is fixedly installed at the bottom of the electric telescopic rod (91), and the connecting pipe (82) is installed through the fixed plate (92).

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