Normal hexane rectification separation device

Abstract

The invention relates to the field of n-hexane rectification separation, in particular to an n-hexane rectification separation device which comprises a rectification mechanism, the rectification mechanism comprises a rectification tower, the top of the rectification tower is connected with a steam pipe, the end, away from the rectification tower, of the steam pipe is connected with the inlet end of a condenser, and the condenser is installed on the rectification tower through a fixing piece; the discharge end of the condenser is connected with a guide pipe, the end, away from the condenser, of the guide pipe is communicated with the collecting tower, the knocking mechanism comprises a supporting plate arranged on the rectifying tower, the supporting plate is connected with a mounting box, the top of the mounting box is provided with a knocking block, a mounting groove is formed in the mounting box, and the knocking block is arranged in the mounting groove. A driving assembly and a force storage assembly are arranged in the mounting groove, intermittent knocking on the guide pipe is achieved through the knocking mechanism, n-hexane attached to the inner wall of the guide pipe is knocked off, n-hexane flows into the collecting tower along the inclined guide pipe, and the collecting efficiency during n-hexane separation is improved.

Description

Technical Field

[0001] The invention relates to the field of n-hexane distillation and separation, in particular to a n-hexane distillation and separation device. Background Art

[0002] Hexane is a hydrocarbon with the chemical formula C6H14. It is a colorless, volatile liquid with a special smell. Hexane is mainly used in organic synthesis, solvents, chromatography analysis and other fields. Due to its high purity and low impurity content, hexane is very popular in laboratory and industrial applications.

[0003] When producing n-hexane, the raw material industrial hexane and the solvent of extractive distillation (such as dimethyl phthalate) are added to the extractive distillation tower in a certain ratio, and finally discharged in the form of steam, and then liquefied and collected through the condenser. However, a large amount of n-hexane often adheres to the inner wall of the pipe at the discharge end of the condenser, which reduces the separation efficiency of n-hexane and may also cause pipe blockage, affecting the normal operation of the equipment. At present, the common solutions to the problem of n-hexane adhering to the inner wall of the pipe include regular manual cleaning and cleaning with chemical solvents. Although these methods can solve the problem to a certain extent, they have the following shortcomings: manual cleaning requires shutdown operation, which increases the downtime of the equipment and reduces production efficiency. Chemical solvent cleaning may introduce new impurities, affecting the purity of n-hexane, while increasing operating costs and environmental burdens.

[0004] Therefore, a n-hexane distillation separation device is proposed. Summary of the invention

[0005] In view of the fact that a large amount of n-hexane often adheres to the inner wall of the pipe at the discharge end of the condenser in the above or prior art, which not only reduces the separation efficiency of n-hexane, but also may cause pipe blockage and affect the normal operation of the equipment, at present, the common solutions to the problem of n-hexane adhering to the inner wall of the pipe include regular manual cleaning and cleaning with chemical solvents. Although these methods can solve the problem to a certain extent, they have the following shortcomings: manual cleaning requires shutdown operation, which increases the downtime of the equipment and reduces production efficiency; chemical solvent cleaning may introduce new impurities, affect the purity of n-hexane, and increase the operating cost and environmental burden. The present invention is proposed.

[0006] Therefore, the object of the present invention is to provide a normal hexane distillation separation device.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a distillation mechanism, which comprises a distillation tower, the top of the distillation tower is connected with a steam pipe, one end of the steam pipe away from the distillation tower is connected to the inlet end of the condenser, the condenser is installed on the distillation tower through a fixing member, and the discharge end of the condenser is connected with a conduit, and one end of the conduit away from the condenser is connected to the collection tower; The knocking mechanism includes a support plate arranged on the distillation tower, the support plate is connected to an installation box, a knocking block is arranged on the top of the installation box, an installation groove is opened inside the installation box, a driving component and a power storage component are arranged inside the installation groove, the power storage component is connected to the knocking block, and a discharge component is installed between the power storage component and the driving component.

[0008] As a preferred solution of the n-hexane distillation separation device of the present invention, the driving assembly includes a thermosensitive wax and a heat conductive sheet arranged inside the mounting groove, one end of the heat conductive sheet is located inside the thermosensitive wax, and the other end of the heat conductive sheet passes through the mounting groove and extends to the inside of the steam pipe, and a piston plate is also arranged inside the mounting groove, and the piston plate is located on the top of the thermosensitive wax.

[0009] As a preferred solution of the n-hexane distillation separation device of the present invention, wherein: the piston plate matches the mounting groove, and the piston plate is made of heat-conducting material.

[0010] As a preferred solution of the n-hexane distillation and separation device of the present invention, the force storage component includes a first telescopic rod and a first spring arranged on the top of the piston plate, the first spring is sleeved on the surface of the first telescopic rod, and the first telescopic rod and the first spring are connected to a column at one end away from the piston plate, and the column extends out of an installation groove at one end away from the first telescopic rod and is connected to the knocking block.

[0011] As a preferred solution of the n-hexane distillation and separation device of the present invention, the force storage component also includes an extrusion block arranged on the column, a first plane is arranged on the extrusion block, a telescopic part is horizontally installed inside the mounting groove, a limit strip is connected to the telescopic part, and a second plane is arranged on the limit strip.

[0012] As a preferred solution of the n-hexane distillation separation device of the present invention, the displacement assembly includes a concave plate arranged on the top of the piston plate, the concave plate is provided with a first inclined surface, and the limiting strip is provided with a second inclined surface.

[0013] As a preferred solution of the n-hexane distillation separation device of the present invention, the power storage component includes a sealing ring arranged on the top of the installation box, and a notch opened on the top of the installation box, the column passes through the notch, and there is a gap between the column and the notch, the sealing ring is annular, and the size of the sealing ring is larger than the size of the notch.

[0014] As a preferred solution of the n-hexane distillation separation device of the present invention, the exhaust assembly further includes a third inclined surface arranged on the extrusion block and a fourth inclined surface arranged on the limit bar.

[0015] The beneficial effects of the n-hexane distillation and separation device of the present invention are as follows: when the distillation tower is in use, the internal temperature of the distillation tower is high, thereby driving the operation of the driving component, so that the driving component drives the power storage component to store power, and when the driving component stores power to a certain extent, the driving component contacts the power discharge component, and the limit of the power storage component is released, so that the power storage component drives the knocking block to move upward. The bottom of the conduit is knocked, and after completion, under the gravity of the power storage component and the knocking block, the power storage component and the knocking block descend, and at the same time, the external air can enter the interior of the installation groove, so that the internal temperature of the installation groove is reduced, and then the driving component and the power discharge component are automatically reset. When the internal temperature of the installation groove is rising, the driving component drives the power storage component to store power, and drives the knocking block with the cooperation of the power discharge component, and intermittently knocks the conduit, knocks off the n-hexane adhered to the inner wall of the conduit, so that the n-hexane flows into the interior of the collection tower along the inclined conduit, thereby increasing the collection efficiency during n-hexane separation, and avoiding the problem of n-hexane adhering to the conduit and affecting the operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the n-hexane distillation separation device; Figure 2 It is a schematic diagram of the top structure of the distillation tower of the normal hexane distillation and separation device; Figure 3 It is a schematic diagram of the cross-sectional structure of the knocking mechanism of the n-hexane distillation and separation device; Figure 4 Schematic diagram of the partial structure of the power storage component of the n-hexane distillation separation device Figure 1 ; Figure 5 Schematic diagram of the partial structure of the power storage component of the n-hexane distillation separation device Figure 2 ; Figure 6 It is a schematic diagram of the top section of the installation box of the n-hexane distillation separation device; In the figure: 1, distillation mechanism; 11, distillation tower; 12, steam pipe; 13, condenser; 14, conduit; 15, collection tower; 2. knocking mechanism; 21. support plate; 22. installation box; 23. knocking block; 24. installation groove; 25. driving assembly; 251. thermal wax; 252. heat conductive sheet; 253. piston plate; 26. power storage assembly; 261. first telescopic rod; 262. first spring; 263. column; 264. extrusion block; 265. first plane; 266. telescopic member; 267. limit strip; 268. second plane; 269. sealing ring; 2610. notch; 27. exhaust assembly; 271. concave plate; 272. first inclined plane; 273. second inclined plane; 274. third inclined plane; 275. fourth inclined plane. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0021] Example 1, reference Figures 1 to 6 , which is the first embodiment of the present invention, and provides a n-hexane distillation separation device, which can achieve the effect of knocking on the conduit 14, and includes a distillation mechanism 1, which includes a distillation tower 11, a steam pipe 12 is connected to the top of the distillation tower 11, and the end of the steam pipe 12 away from the distillation tower 11 is connected to the inlet end of the condenser 13, and the condenser 13 is installed on the distillation tower 11 through a fixing member, and the discharge end of the condenser 13 is connected to the conduit 14, and the end of the conduit 14 away from the condenser 13 is connected to the collecting tower 15, and the distillation tower 11 is provided with There is a knocking mechanism 2, which includes a support plate 21 fixedly connected to the distillation tower 11, a mounting box 22 connected to the support plate 21, a knocking block 23 is arranged on the top of the mounting box 22, the knocking block 23 is located at the bottom of the conduit 14, a mounting groove 24 is opened inside the mounting box 22, a driving component 25 and a power storage component 26 are arranged inside the mounting groove 24, the power storage component 26 is connected to the knocking block 23, a discharge component 27 is installed between the power storage component 26 and the driving component 25, and a heat exhaust component is arranged between the power storage component 26 and the discharge component 27; Among them, the distillation tower 11 and the condenser 13 are both very mature equipment in the prior art; Among them, the installation box 22 is a heat preservation box with a heat preservation function; When the distillation tower 11 is in use, the internal temperature of the distillation tower 11 is relatively high, thereby driving the operation of the driving component 25, so that the driving component 25 drives the force storage component 26 to store force. When the driving component 25 stores force to a certain extent, the driving component 25 contacts the exhaust component 27, and the limit on the force storage component 26 is released, so that the force storage component 26 drives the knocking block 23 to move upward. The bottom of the conduit 14 is knocked. After completion, the force storage component 26 and the knocking block 23 descend under the action of gravity. At the same time, external air can enter the installation groove 24, thereby reducing the internal temperature of the installation groove 24, thereby driving the driving component 25 and the exhaust component 27 to automatically reset. When the internal temperature of the installation groove 24 is rising, the driving component 25 drives the force storage component 26 to store force, and drives the knocking block 23 with the cooperation of the exhaust component 27 to intermittently knock on the conduit 14, knocking off the n-hexane adhering to the inner wall of the conduit 14, so that the n-hexane flows into the interior of the collection tower 15 along the inclined conduit 14, thereby increasing the collection efficiency during n-hexane separation, and avoiding the problem of n-hexane adhering to the inside of the conduit 14 and affecting the operation of the equipment.

[0022] Furthermore, the driving assembly 25 includes a thermosensitive wax 251 and a heat conductive sheet 252 disposed inside the mounting groove 24, one end of the heat conductive sheet 252 is located inside the thermosensitive wax 251, and the other end of the heat conductive sheet 252 passes through the mounting groove 24 and extends to the inside of the steam pipe 12, and a piston plate 253 is also disposed inside the mounting groove 24, and the piston plate 253 is located on the top of the thermosensitive wax 251; The heat conducting sheet 252 is used to introduce the temperature inside the distillation tower 11 into the installation groove 24, so that the thermosensitive wax 251 melts. Then, the volume expansion of the thermosensitive wax 251 drives the piston plate 253 to rise. If the heat conducting sheet 252 is partially located outside, a heat preservation sleeve can be provided to reduce temperature loss.

[0023] Further, the piston plate 253 matches the mounting groove 24, and the piston plate 253 is made of a heat-conducting material; Among them, by matching the piston plate 253 with the mounting groove 24, when the thermal wax 251 expands, the piston plate 253 is driven to rise, and a stable seal is formed between the piston plate 253 and the inside of the mounting groove 24 to prevent the thermal wax 251 from flowing from the piston plate 253 and the inner wall of the mounting groove 24 to the top of the piston plate 253, which affects the operation of the drive component 25 and the virtual component. The piston plate 253 is similar to the piston rod in the prior art, and the seal between the piston plate 253 and the mounting groove 24 is a very mature prior art. At the same time, by matching the piston plate 253 with the mounting groove 24, when the force storage component 26 rises, the first plane 265 on the extrusion block 264 can correspond to the position of the second plane 268 on the limit strip 267. At the same time, it is also ensured that when the force storage component 26 descends, the first inclined surface 272 on the concave plate 271 corresponds to the position of the second inclined surface 273 on the limit strip 267; The material of the piston plate 253 may be a metal skeleton foamed silicone rubber composite sealing plate. This material combines the strength of the metal skeleton and the flexibility of the foamed silicone rubber, and has good thermal conductivity and sealing properties.

[0024] Furthermore, the force storage assembly 26 includes a first telescopic rod 261 and a first spring 262 arranged on the top of the piston plate 253. The first spring 262 is sleeved on the surface of the first telescopic rod 261. The first telescopic rod 261 ensures that the first spring 262 will only be compressed linearly, thereby ensuring the stability of the first spring 262. The first telescopic rod 261 and the first spring 262 are fixedly connected to the end away from the piston plate 253 with a column 263. The end of the column 263 away from the first telescopic rod 261 extends out of the installation groove 24 and is fixedly connected to the knocking block 23.

[0025] Furthermore, the power storage assembly 26 also includes an extrusion block 264 disposed on the column 263, a first plane 265 is disposed on the extrusion block 264, a telescopic member 266 is horizontally installed inside the mounting groove 24, a limit strip 267 is connected to the telescopic member 266, and a second plane 268 is disposed on the limit strip 267; The telescopic member 266 may be a second telescopic rod and a second spring or other elastic components that can ensure the linear movement of the limiting strip 267 .

[0026] Furthermore, the exhaust assembly 27 includes a concave plate 271 arranged on the top of the piston plate 253, and the ends of the first telescopic rod 261 and the first spring 262 away from the column 263 are fixedly connected to the top of the concave plate 271, and a first inclined surface 272 is provided on the concave plate 271, and a second inclined surface 273 is provided on the limit strip 267, and the first inclined surface 272 matches the second inclined surface 273.

[0027] Furthermore, the power storage assembly 26 includes a sealing ring 269 disposed on the top of the installation box 22, and a notch 2610 opened on the top of the installation box 22, the column 263 passes through the notch 2610, and there is a gap between the column 263 and the notch 2610, the sealing ring 269 is annular, and the size of the sealing ring 269 is larger than the size of the notch 2610; Among them, the notch 2610 is set to allow the column 263 to slide out, and there is a gap between the column 263 and the notch 2610, so that the column 263 will not contact the notch 2610 during the rising or falling process, thereby reducing the wear of the column 263 and the installation box 22. At the same time, when the knocking block 23 is not in contact with the top of the sealing ring 269, the external air can enter the interior of the installation box 22 from the gap between the notch 2610 and the column 263. By setting the sealing ring 269 into a ring shape and the size of the sealing ring 269 is larger than the size of the notch 2610, when the knocking block 23 is in the initial position, the bottom of the knocking block 23 squeezes the sealing ring 269, and the cooperation with the sealing ring 269 prevents the external air from flowing into the interior of the installation box 22 through the gap between the notch 2610 and the column 263, thereby causing the internal temperature of the installation box 22 to decrease.

[0028] Furthermore, the sealing ring 269 is made of a high-elasticity, high-temperature resistant material, which may be fluororubber. Fluororubber has excellent high-temperature resistance and chemical stability, and can work stably for a long time in an environment of 240°C, and can even withstand a high temperature of 300°C in a short time. The temperature inside the steam pipe 12 is generally between 60°C and 70°C, and fluororubber is fully applicable. At the same time, fluororubber also has good oil resistance, solvent resistance, fuel oil resistance, high and low temperature resistance, and resistance to corrosion by oxygen-containing compounds, aromatic solvents and chlorine-containing solvents.

[0029] In this embodiment, in the initial state, the first plane 265 on the extrusion block 264 is in contact with the second plane 268 on the limiting strip 267; When in use, as the heat conducting sheet 252 conducts the temperature inside the distillation tower 11 to the inside of the installation box 22, the thermosensitive wax 251 inside the installation box 22 melts, causing the volume of the thermosensitive wax 251 to expand, thereby driving the piston plate 253 to rise, and the piston plate 253 drives the first telescopic rod 261 and the first spring 262 to rise through the concave plate 271, and the first telescopic rod 261 and the first spring 262 drive the column 263 to rise, and the column 263 drives the extrusion block 264 and the knocking block 23 to rise. The first plane 265 on the extrusion block 264 contacts the second plane 268 on the limit bar 267, so that the column 263 cannot rise, and then the first telescopic rod 261, the first spring 262 and the concave plate 271 cannot rise. That is, when the piston plate 253 drives the concave plate 271 and the first telescopic rod 261 and the first spring 262 thereon to rise, the first telescopic rod 261 and the first spring 262 are compressed, so that the first spring 262 begins to accumulate force, and as the piston plate 253 continues to The concave plate 271 is driven to continue to rise. When the first inclined surface 272 on the concave plate 271 contacts the second inclined surface 273 on the limiting strip 267, the first inclined surface 272 on the concave plate 271 squeezes the second inclined surface 273 on the limiting strip 267, thereby causing the limiting strip 267 to squeeze the telescopic member 266, causing the telescopic member 266 to shrink. When the second plane 268 on the limiting strip 267 is completely misaligned with the first plane 265 on the extrusion block 264, the extrusion block 264 is not restricted. It can move upward, and at this time the first spring 262 is no longer restricted. Under the elastic force of the first spring 262, the column 263 instantly bounces upward, and the column 263 drives the knocking block 23 to move upward quickly, knocking the bottom of the conduit 14, knocking off the n-hexane adhering to the inner wall of the conduit 14, so that the n-hexane flows into the interior of the collection tower 15 along the inclined conduit 14, thereby increasing the collection efficiency during n-hexane separation and avoiding the problem of n-hexane adhering to the inside of the conduit 14 and affecting the operation of the equipment.

[0030] In summary, in this embodiment, a mechanism for knocking on the conduit 14 is provided, by conducting the temperature inside the distillation tower 11 to the inside of the installation box 22, and in conjunction with the thermosensitive wax 251 and the first spring 262, the knocking block 23 can knock on the bottom of the conduit 14, thereby knocking off the n-hexane adhering to the inner wall of the conduit 14, so that the n-hexane flows into the interior of the collection tower 15 along the inclined conduit 14, thereby increasing the collection efficiency during n-hexane separation, and avoiding the problem of n-hexane adhering to the inside of the conduit 14 and affecting the operation of the equipment.

[0031] Example 2, reference Figures 1 to 6, which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a n-hexane distillation separation device, which solves the problem of heat dissipation of the installation box 22. The exhaust component 27 also includes a third inclined surface 274 arranged on the extrusion block 264 and a fourth inclined surface 275 arranged on the limit bar 267.

[0032] Furthermore, the gravity of the force storage assembly 26 is greater than the elastic force of the telescopic member 266, so that when the force storage assembly 26 is descending, the force storage assembly 26 squeezes the fourth slope 275 on the limit strip 267 through the third slope 274 on the extrusion block 264, so that the limit strip 267 squeezes the telescopic member 266, causing the telescopic member 266 to contract, which will not affect the resetting of the force storage assembly 26.

[0033] Furthermore, a buffer pad is provided on the top of the knocking block 23. The setting of the buffer pad reduces the impact force between the knocking block 23 and the catheter 14, so that the knocking block 23 has only a flexible impact on the catheter 14. Since the inside of the catheter 14 is mainly liquid n-hexane, a strong impact is not required, thereby reducing the wear between the knocking block 23 and the catheter 14.

[0034] The rest of the structure is the same as that of Example 1.

[0035] During use, when the knocking block 23 completes the knocking of the conduit 14, the force storage assembly 26 is at the highest point and the third inclined surface 274 on the extrusion block 264 contacts the fourth inclined surface 275 on the limit strip 267. At this time, the knocking block 23 does not contact the sealing ring 269, so that the external air can enter the interior of the installation box 22 through the gap between the column 263 and the notch 2610, so that the internal temperature of the installation box 22 is reduced. At the same time, under the action of the piston plate 253, the temperature of the thermal wax 251 is reduced, so that the thermal wax 251 changes from liquid to solid, thereby reducing the volume of the thermal wax 251. As the volume of the thermal wax 251 continues to decrease, the bottom of the piston plate 253 lacks support, and the piston plate 253 and the force storage assembly thereon are Component 26 descends accordingly under the action of gravity. During the descending process, the column 263 continuously squeezes the fourth slope 275 on the limiting strip 267 through the third slope 274 on the extrusion block 264. When the third slope 274 on the third extrusion block 264 is misaligned with the fourth slope 275 on the limiting strip 267, under the action of the elastic force of the telescopic component 266, the limiting strip 267 returns to the initial position, so that the second plane 268 on the limiting strip 267 contacts the first plane 265 on the extrusion block 264, thereby limiting the extrusion block 264.

[0036] In summary, in this embodiment, the device is further optimized so that after the force storage component 26 completes the tapping of the catheter 14 through the tapping block 23, the driving component 25 and the force storage component 26 can automatically return to the initial position, thereby achieving intermittent tapping of the catheter 14.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A normal hexane distillation separation device, characterized in that: include, A distillation mechanism (1), comprising a distillation tower (11), the top of the distillation tower (11) being connected to a steam pipe (12), one end of the steam pipe (12) away from the distillation tower (11) being connected to an inlet end of a condenser (13), the condenser (13) being mounted on the distillation tower (11) via a fixing member, and the discharge end of the condenser (13) being connected to a conduit (14), and one end of the conduit (14) away from the condenser (13) being in communication with a collection tower (15); A knocking mechanism (2) comprises a support plate (21) arranged on the distillation tower (11), the support plate (21) being connected to a mounting box (22), a knocking block (23) being arranged on the top of the mounting box (22), a mounting groove (24) being provided inside the mounting box (22), a driving component (25) and a force storage component (26) being arranged inside the mounting groove (24), the force storage component (26) being connected to the knocking block (23), and a force discharge component (27) being installed between the force storage component (26) and the driving component (25).

2. The n-hexane distillation separation device according to claim 1, characterized in that: The driving assembly (25) comprises a thermosensitive wax (251) and a heat conducting sheet (252) arranged inside the installation groove (24); one end of the heat conducting sheet (252) is located inside the thermosensitive wax (251), and the other end of the heat conducting sheet (252) passes through the installation groove (24) and extends to the inside of the steam pipe (12); a piston plate (253) is also arranged inside the installation groove (24), and the piston plate (253) is located on top of the thermosensitive wax (251).

3. The n-hexane distillation separation device according to claim 2, characterized in that: The piston plate (253) matches the mounting groove (24), and the piston plate (253) is made of heat-conducting material.

4. The n-hexane distillation separation device according to claim 3, characterized in that: The force storage assembly (26) comprises a first telescopic rod (261) and a first spring (262) arranged on the top of the piston plate (253); the first spring (262) is sleeved on the surface of the first telescopic rod (261); one end of the first telescopic rod (261) and the first spring (262) away from the piston plate (253) is connected to a column (263); one end of the column (263) away from the first telescopic rod (261) extends out of the mounting groove (24) and is connected to the knocking block (23).

5. The n-hexane distillation separation device according to claim 4, characterized in that: The force storage assembly (26) further comprises an extrusion block (264) arranged on the column (263), a first plane (265) being provided on the extrusion block (264), a telescopic member (266) being horizontally installed inside the installation groove (24), a limit strip (267) being connected to the telescopic member (266), and a second plane (268) being provided on the limit strip (267).

6. The n-hexane distillation separation device according to claim 5, characterized in that: The displacement assembly (27) comprises a concave plate (271) disposed on the top of the piston plate (253), a first inclined surface (272) being disposed on the concave plate (271), and a second inclined surface (273) being disposed on the limiting strip (267).

7. The n-hexane distillation separation device according to claim 6, characterized in that: The power storage assembly (26) comprises a sealing ring (269) arranged on the top of the installation box (22), and a notch (2610) opened on the top of the installation box (22); the column (263) passes through the notch (2610), and there is a gap between the column (263) and the notch (2610); the sealing ring (269) is annular, and the size of the sealing ring (269) is larger than the size of the notch (2610).

8. The n-hexane distillation separation device according to claim 7, characterized in that: The displacement assembly (27) further comprises a third inclined surface (274) provided on the extrusion block (264) and a fourth inclined surface (275) provided on the limiting strip (267).

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