Extraction liquid separation device

Abstract

The utility model discloses an extraction liquid separation device, including base, funnel stand, separating funnel and piston, the funnel stand is located above base and is connected through the support pillar, the funnel stand is equipped with two placing holes symmetrically, the top of separating funnel is equipped with the screw cap in a threaded manner, the screw cap is equipped with air leakage holes symmetrically, and the piston is connected with the base. The safety plug is mounted in the top end of the separating funnel, the long neck is mounted at the lower end of the separating funnel in a communicating manner, the whole long neck is cross-shaped, and the piston is mounted in the transverse long neck. According to the device, solution leakage caused by overlarge amplitude in the extraction oscillation process can be effectively avoided, meanwhile, the safety of an experiment is improved, the extraction and liquid separation efficiency is improved while the solution leakage is prevented, and the accuracy and the stability of the experiment are effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid-liquid extraction, and particularly relates to an extraction and liquid separation device. Background Art

[0002] Extraction, also known as solvent extraction or liquid-liquid extraction, is a method of transferring a solute from one solvent to another by utilizing the difference in solubility or distribution coefficient of the substance in two immiscible (or slightly miscible) solvents. It is widely used in industries such as chemistry, metallurgy, and food. The operation of separating two immiscible liquids after extraction is called liquid separation.

[0003] In the field of iron and steel chemical analysis, organic reagents are often used for extraction. Generally, this type of method involves dissolving the sample with acid, then placing the solution in a separating funnel, adding the reagents required by the method. Hold the upper opening part of the funnel with the right hand, and clamp or hold the glass stopper with the index finger and middle finger or hold it with the palm, usually fixed with a rubber band to prevent the glass stopper from loosening. Hold the separating funnel with the left hand, press the piston handle above with the thumb and index finger, place the separating funnel horizontally, and tilt the funnel neck slightly upward. After shaking for a certain period of time and then standing for layering, since gas will be generated during this period, it is necessary to frequently open the upper piston to release gas to balance the internal and external pressures. During the shaking process, both the upper and lower pistons will loosen, resulting in solution loss. The loss of the extract affects the experimental accuracy. At the same time, the leaked solution will corrode the skin when it comes into contact with the skin, thus reducing the safety of the experiment. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an extraction and liquid separation device that can effectively avoid solution leakage caused by excessive amplitude during the extraction oscillation process, improve the safety of the experiment, prevent solution leakage, and also improve the extraction and liquid separation efficiency, effectively improving the accuracy and stability of the experiment.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An extraction and liquid separation device includes a base, a funnel rack, a separating funnel, and a piston. The funnel rack is located above the base and is connected by support columns. Two placement holes are symmetrically opened on the funnel rack. The top of the separating funnel is threadedly installed with a screw cap, and air leakage holes are symmetrically opened on the screw cap. A safety plug is installed inside the top end of the separating funnel, so that the top of the separating funnel reaches a sealing effect and can effectively prevent leakage. The lower end of the separating funnel is connected and installed with a long neck port, and the whole long neck port is cross-shaped. The piston is installed in the horizontal long neck port.

[0007] The piston includes a piston shaft, piston bolts, a support plate, and a movable plate. The piston shaft is rotatably installed in the long neck opening and extends to the outside of the long neck opening at both ends. The piston bolts are threadedly installed at one end of the piston shaft, and the diameter of the piston bolts is greater than that of the piston shaft, thereby restricting the piston shaft in the long neck opening and preventing the lateral displacement of the piston shaft during oscillation. A piston liquid distribution hole is provided in the middle of the piston shaft, and the diameter of the piston liquid distribution hole is much smaller than that of the long neck opening. A cavity is provided at one end of the piston shaft away from the piston plug. A support plate is installed at the middle position inside the cavity. Springs are installed on both sides of the middle of the support plate. The movable plate is installed at the end of the spring away from the support plate. One end of the movable plate extends to the outside of the piston shaft. A movable column is installed on the side of the movable plate away from the spring. A through hole matching the movable column is provided on the piston shaft, and a slot hole matching the movable column is provided inside the cavity of the piston shaft. The movable column can pass through the through hole and move into the slot hole.

[0008] Preferably, the safety plug is in the shape of a frustum of a cone as a whole, and the longest diameter of the frustum is slightly larger than the top of the separating funnel.

[0009] Preferably, both the screw cap and the safety plug are made of polytetrafluoroethylene.

[0010] Preferably, the air vent hole is curved.

[0011] Preferably, rotary handles are installed on the upper and lower sides of one end of the piston shaft close to the cavity.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1) It can effectively avoid the solution leakage caused by excessive amplitude during the extraction oscillation process, improve the safety of the experiment, prevent the solution leakage, and improve the extraction and liquid separation efficiency at the same time, effectively improving the accuracy and stability of the experiment.

[0014] 2) The safety plug is in the shape of a frustum of a cone as a whole, and the longest diameter of the frustum is slightly larger than the top of the separating funnel, thus tightly blocking the top.

[0015] 3) Both the screw cap and the safety plug are made of polytetrafluoroethylene. The polytetrafluoroethylene material has the characteristic of corrosion resistance, improving the service life.

[0016] 4) The air vent hole is curved. Even if a small amount of gas splashes out during the air release process, it can be blocked by the curved air vent hole, thus preventing a small amount of liquid from splashing out and corroding the skin during the air release of the separating funnel and improving the safety during the experiment.

[0017] 5) Rotary handles are installed on the upper and lower sides of one end of the piston shaft close to the cavity, facilitating the rotation of the piston shaft through the rotary handles. Description of the Drawings

[0018] AppendixFigure 1 This is a schematic structural diagram of an extraction and liquid separation device of the present utility model.

[0019] Appendix Figure 2 This is a schematic connection diagram of the screw cap and the separating funnel in an extraction and liquid separation device of the present utility model.

[0020] Appendix Figure 3 This is a schematic structural diagram of the piston in an extraction and liquid separation device of the present utility model.

[0021] Appendix Figure 4 This is a sectional view of the piston in an extraction and liquid separation device of the present utility model.

[0022] Appendix Figure 5 This is a schematic connection diagram of the piston and the long neck opening in an extraction and liquid separation device of the present utility model.

[0023] In the figure: 1. Base; 2. Funnel rack; 3. Support column; 4. Placing hole; 5. Separating funnel; 6. Screw cap; 7. Long neck opening; 8. Piston; 9. Air vent hole; 10. Safety plug; 11. Piston shaft; 12. Rotating handle; 13. Piston liquid separation hole; 14. Piston bolt; 15. Cavity; 16. Support plate; 17. Spring; 18. Movable plate; 19. Movable column. Specific embodiments

[0024] Next, in combination with the appendix Figures 1-5 , the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0026] An extraction and separation device includes a base 1, a funnel rack 2, a separating funnel 5, and a piston 8. The funnel rack 2 is located above the base 1 and is connected by a support column 3. Two placement holes 4 are symmetrically formed on the funnel rack 2. A screw cap 6 is threadedly installed at the top of the separating funnel 5. Air vent holes 9 are symmetrically formed on the screw cap 6. A safety plug 10 is installed inside the top end of the separating funnel 5, so that the top of the separating funnel 5 achieves a sealing effect and can effectively prevent leakage. The lower end of the separating funnel 5 is connected and installed with a long neck 7. The long neck 7 is integrally cross-shaped. The piston 8 is installed in the horizontal long neck 7. After the separating funnel 5 is oscillated for extraction several times, the solution inside the separating funnel 5 will generate gas, resulting in excessive internal pressure in the separating funnel 5. The screw cap 6 can be rotated 2 - 3 turns in threads, not fully opened, so as to loosen the safety plug 10 pressed by the screw cap 6. When the internal pressure in the separating funnel 5 is too high, the safety plug 10 will be pushed open, and the gas inside the separating funnel 5 can be discharged through the air vent holes 9, thereby balancing the internal and external pressures of the separating funnel 5. Then the screw cap 6 can be tightened again, and the extraction oscillation operation can be continued. The above operation is repeated until the extraction effect is achieved.

[0027] The piston 8 includes a piston shaft 11, a piston bolt 14, a support plate 16, and a movable plate 18. The piston shaft 11 is rotatably installed in the long neck 7 and both ends extend to the outside of the long neck 7. The piston bolt 14 is threadedly installed at one end of the piston shaft 11. The diameter of the piston bolt 14 is larger than that of the piston shaft 11, so as to limit the piston shaft 11 in the long neck 7 and prevent the lateral displacement of the piston shaft 11 during the oscillation process. A piston separation hole 13 is formed in the middle of the piston shaft 11. The diameter of the piston separation hole 13 is much smaller than that of the long neck 7. A cavity 15 is formed at one end of the piston shaft 11 away from the piston plug 14. A support plate 16 is installed at the middle position inside the cavity 15. Springs 17 are installed on both sides of the middle of the support plate 16. The movable plate 18 is installed at the end of the spring 17 away from the support plate 16. One end of the movable plate 18 extends to the outside of the piston 8 shaft. A movable column 19 is installed on the side of the movable plate 18 away from the spring 17. A through hole matching the movable column 19 is formed on the piston shaft 11. A slot hole matching the movable column 19 is formed inside the cavity 15 of the piston shaft 11. The movable column 19 can move through the through hole to the slot hole. When the movable column 19 is located in the slot hole, the piston separation hole 13 is communicated with the long neck 7 to achieve the purpose of liquid separation. When the separating funnel 5 is oscillated, by pressing the movable plate 18, the movable column 19 is separated from the slot hole and moves to the through hole, and then the piston shaft 11 is rotated by a certain angle. When the external force on the movable plate 18 is stopped, at this time, the movable column 19 abuts against the inner wall of the cavity 15 under the action of the spring 17, and the piston separation hole 13 is not communicated with the long neck 7, so as to prevent the piston 8 from rotating and loosening during the oscillation process, thereby avoiding liquid leakage.

[0028] The safety plug 10 is in the shape of a frustum of a cone as a whole, and the longest diameter of the frustum of the cone is slightly larger than the top of the separating funnel 5, so as to tightly block the top. Both the screw cap 6 and the safety plug 10 are made of polytetrafluoroethylene material, and the polytetrafluoroethylene material has the characteristic of corrosion resistance, which improves the service life. The air vent 9 is curved. Even if a small amount of gas splashes out during the air release process, it can be blocked by the curved air vent 9, so as to prevent a small amount of liquid from splashing out and corroding the skin during the air release process of the separating funnel 5, and improve the safety during the experiment. Rotating handles 12 are installed on the upper and lower sides of one end of the piston shaft close to the cavity 15, and it is convenient to rotate the piston shaft 11 through the rotating handles 12.

[0029] The above content is only an example and description of the structure of the present invention. Those skilled in the art of the present technology make various modifications or supplements or use similar methods to replace the specific embodiments described, as long as they do not deviate from the structure of the invention or exceed the scope defined by this claim book, they should all belong to the protection scope of the present invention.

Claims

1. An extraction and liquid separation device, characterized in that: It includes a base, a funnel stand, a separatory funnel, and a piston. The funnel stand is located above the base and is connected through a support column. Two placement holes are symmetrically provided on the funnel stand. A screw cap is threadedly installed on the top of the separatory funnel. Air leakage holes are symmetrically provided on the screw cap. A safety plug is installed inside the top of the separatory funnel. The lower end of the separatory funnel is connected and installed with a long neck mouth. The long neck mouth is cross-shaped as a whole. The piston is installed in the horizontal long neck mouth.

2. The extraction and liquid separation device according to claim 1, characterized in that: The piston comprises a piston shaft, a piston bolt, a support plate and a movable plate. The piston shaft is rotatably installed in the middle of the long neck mouth and both ends extend to the outside of the long neck mouth. The piston bolt is threadedly installed at one end of the piston shaft. The diameter of the piston bolt is larger than the diameter of the piston shaft. A piston liquid separation hole is opened in the middle of the piston shaft. The diameter of the piston liquid separation hole is much smaller than the diameter of the long neck mouth. A cavity is opened at one end of the piston shaft away from the piston screw plug. A support plate is installed in the middle position of the cavity. Springs are installed on both sides of the middle of the support plate. The movable plate is installed with one end of the spring away from the support plate. One end of the movable plate extends to the outside of the piston shaft. A movable column is installed on the side of the movable plate away from the spring. A through hole matching with the movable column is opened on the piston shaft. A slot hole matching with the movable column is opened in the piston shaft cavity. The movable column can pass through the through hole and move into the slot hole.

3. The extraction and liquid separation device according to claim 1, characterized in that: The safety plug is in the shape of a truncated cone as a whole, and the longest diameter of the truncated cone is larger than the top of the separating funnel.

4. The extraction and liquid separation device according to claim 1, characterized in that: The screw cap and the safety plug are both made of polytetrafluoroethylene.

5. The extraction and liquid separation device according to claim 1, characterized in that: The air leakage hole is curved.

6. The extraction and liquid separation device according to claim 2, characterized in that: Rotating handles are installed on the upper and lower sides of one end of the piston shaft close to the cavity.

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