Rectification system

Abstract

The utility model belongs to rectification technical field discloses a rectification system, including storage assembly and conveying pipe group, storage assembly includes storage jar and deflector, is equipped with storage inner chamber in storage jar, is equipped with the discharge gate that inclines to the upwards on the lateral wall of storage jar, the deflector includes guide top and connecting tail end, and the connecting tail end is connected in the lateral wall of storage jar, and is located below the discharge gate, and the deflector is arranged obliquely to make guide top away from the lateral wall of storage jar, and conveying pipe group includes conveying pipeline, and the conveying pipeline is connected discharge gate and with rectification tower. Through the impurity of bottom under the action of gravity, cannot enter the discharge gate, effectively reduced the impurity of entering rectification system, and then reduced the number of times of equipment maintenance, reduced the cost and downtime of equipment maintenance, and through the deflector of inclination, not only make material enter the discharge gate smoothly, but also make material form the steady flow state at the discharge gate, thereby reduce the generation of vortex, make material stable output.

Description

Technical Field

[0001] This utility model relates to the field of distillation technology, and in particular to a distillation system. Background Technology

[0002] Organic distillation is a core process for component separation and purification in chemical, pharmaceutical, and petrochemical fields. Its principle is based on the difference in boiling points of different substances. Mass and heat transfer are completed through the countercurrent contact of gas and liquid phases in the distillation column, and finally, high-purity target products are separated from the mixture. It is a key link in material refining in industrial production.

[0003] The core components of a traditional organic distillation system include key equipment such as a pre-feed tank, a distillation column, a reboiler, and a condenser. The pre-feed tank, acting as a feed buffer unit, primarily balances feed fluctuations, providing a continuous and stable material supply to the distillation column and ensuring long-term stable system operation. These tanks typically employ a bottom-discharge design, with the material directly conveyed to the distillation column through the bottom outlet, where it works in conjunction with the vapor phase generated by the reboiler and the liquid phase formed by the condenser to complete the separation process.

[0004] However, due to the natural sedimentation of the aqueous phase in the material to be distilled because its density is greater than that of the organic phase, as well as solid impurities such as material degradation products and polymers generated during storage, along with metal particles generated by equipment corrosion and solid particles mixed in from the outside, all of these will be deposited at the bottom of the storage tank under gravity. Since the outlet is located at the bottom of the tank, these deposited aqueous phases and impurities will enter the distillation system simultaneously with the material during discharge, forming a continuous input of impurities. This leads to blockage of the packing gaps and the openings of the trays in the distillation column, disrupting the uniformity of gas-liquid mass transfer, causing abnormal pressure distribution in the column and a significant decrease in separation efficiency. At the same time, the fouling layer formed by the adhering impurities will reduce the heat transfer coefficient, increase the energy consumption for heating the column bottom, and cause fluctuations in the purity of the top distillate. Furthermore, when impurities enter auxiliary equipment such as reboilers and condensers, they will cause scaling on the heat exchange surfaces, affecting the efficiency of hot and cold medium exchange. In severe cases, this can lead to equipment overload and shutdown, significantly increasing equipment maintenance costs and system downtime. Utility Model Content

[0005] The purpose of this invention is to provide a distillation system that has low impurity content in the discharged material, good distillation effect, stable system operation, low equipment maintenance cost, and short system downtime.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] This utility model provides a distillation system, which includes a distillation column for distillation operations, and further includes:

[0008] A material storage assembly includes a material storage tank and a guide plate. The material storage tank has a material storage cavity inside, and an upwardly inclined discharge port is opened on the side wall of the material storage tank. The discharge port communicates with the material storage cavity. The guide plate is disposed in the material storage cavity and includes a guiding top end and a connecting tail end. The connecting tail end is connected to the side wall of the material storage tank and is located below the discharge port. The guide plate is inclined so that the guiding top end is away from the side wall of the material storage tank.

[0009] The conveying pipe assembly includes a conveying pipe, one end of which is connected to the discharge port, and the other end of which is connected to the distillation column.

[0010] Optionally, the storage tank includes a tank top, a tank body, and a tank bottom. The tank top is connected to the top of the tank body, and the tank bottom is connected to the bottom of the tank body to form a closed storage cavity. The tank bottom has an inverted conical structure and a drain outlet is provided at the top of the cone. The taper angle of the tank bottom is 60°≤θ1≤90°.

[0011] Optionally, the height of the storage tank is H, and the distance between the center of the outlet located inside the inner cavity of the storage tank and the cone apex of the tank bottom along the first direction is L1, and satisfies 0.1H≤L1≤0.2H.

[0012] Optionally, the distance between the upper edge of the outlet located inside the inner cavity of the storage tank and the lowest working liquid level in the storage tank along the first direction is L2, and satisfies 30cm≤L2≤50cm.

[0013] Optionally, the distillation system further includes a sludge pipe assembly, which includes a sludge pipe, a manual gate valve, a pneumatic ball valve, and a recycling device. One end of the sludge pipe is connected to the sludge outlet, and the other end of the sludge pipe is connected to the recycling device. The manual gate valve and the pneumatic ball valve are connected in series on the sludge pipe, and the manual gate valve is located between the pneumatic ball valve and the storage tank.

[0014] Optionally, the angle between the guide plate and the side wall of the storage tank is θ2, and θ2 = 15° is satisfied.

[0015] Optionally, the distance between the lower edge of the discharge port on one side of the inner cavity of the storage chamber and the connecting tail end along the first direction is L3, and L3 = 10cm.

[0016] Optionally, the storage assembly further includes a plurality of cleaning nozzles, all of which are disposed in the inner cavity of the storage tank and are connected at equal intervals to the side wall of the storage tank along the circumferential direction.

[0017] Optionally, the conveying pipeline assembly further includes a filter, a flow control valve, a check valve, a preheater, and a feed drive. The filter, the flow control valve, the check valve, the preheater, and the feed drive are connected in series on the conveying pipeline. The filter is located between the storage tank and the flow control valve. The feed drive is located between the flow control valve and the check valve. The preheater is located between the check valve and the distillation column. The top of the distillation column is equipped with a temperature detector for regulating the flow control valve.

[0018] Optionally, the storage assembly further includes a first level gauge and a second level gauge. The first level gauge is connected to the storage tank and disposed in the inner cavity of the storage tank to detect the level of the material. The second level gauge is connected to the storage tank and disposed outside the inner cavity of the storage tank to detect the thickness of the impurities.

[0019] The beneficial effects of this utility model are:

[0020] This invention provides a distillation system. By placing the discharge port on the side wall of a storage tank and tilting it upwards, impurities deposited at the bottom of the storage tank are prevented from entering the distillation system through the discharge port under the influence of gravity. This effectively reduces the amount of impurities entering the distillation system, ensures the gas-liquid mass transfer efficiency within the system, avoids equipment blockage, and guarantees stable operation of the distillation system. This, in turn, reduces the frequency of equipment maintenance due to impurity blockage, lowers maintenance costs, and reduces downtime. Furthermore, by installing a guide plate on the side wall of the storage tank, the flow direction of the material can be changed, allowing the material to smoothly enter the discharge port under the guidance of the guide plate. The tilted design of the guide plate also creates a relatively stable flow near the discharge port, reducing eddies and ensuring stable material output. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the distillation system provided by this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the storage component in the distillation system provided by this utility model;

[0023] Figure 3 This is a cross-sectional view of the wall surface at the outlet of the storage tank in the distillation system provided by this utility model.

[0024] In the picture:

[0025] 100. Distillation column; 200. Temperature detector;

[0026] 1. Storage assembly; 11. Storage tank; 111. Discharge port; 112. Tank top; 113. Tank body; 114. Tank bottom; 12. Baffle plate; 121. Guide top; 122. Connecting tail end; 13. Cleaning nozzle; 14. First level gauge; 15. Second level gauge;

[0027] 2. Conveying pipe assembly; 21. Conveying pipeline; 22. Filter; 23. Flow control valve; 24. Check valve; 25. Preheater; 26. Feed drive unit;

[0028] 3. Sewage pipe assembly; 31. Sewage pipe; 32. Manual gate valve; 33. Pneumatic ball valve; 34. Recycling and treatment device. Detailed Implementation

[0029] The present invention will now be described in further detail 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 not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] Because the aqueous phase in the material to be distilled, which has a density greater than that of the organic phase, naturally settles, along with solid impurities such as material degradation products and polymers generated during storage, as well as metal particles generated from equipment corrosion and solid particles mixed in from the outside, all of these will deposit at the bottom of the storage tank under gravity. Since the outlet is located at the bottom of the tank, these deposited aqueous phases and impurities will enter the distillation system simultaneously with the material during discharge, forming a continuous input of impurities. This leads to blockage of the packing gaps and the openings of the trays in the distillation column, disrupting the uniformity of gas-liquid mass transfer, causing abnormal pressure distribution in the column, and a significant decrease in separation efficiency. At the same time, the fouling layer formed by the adhering impurities will reduce the heat transfer coefficient, increase the energy consumption for heating the column bottom, and cause fluctuations in the purity of the top distillate. Furthermore, when impurities enter auxiliary equipment such as reboilers and condensers, they will cause scaling on the heat exchange surfaces, affecting the efficiency of hot and cold medium exchange. In severe cases, this can lead to equipment overload and shutdown, significantly increasing equipment maintenance costs and system downtime.

[0034] Therefore, in order to reduce the entry of impurities into the distillation system, ensure the gas-liquid mass transfer efficiency within the distillation system, reduce the number of equipment maintenance operations caused by impurity blockage, and lower the cost and downtime of equipment maintenance, this embodiment provides a distillation system.

[0035] like Figures 1 to 3 As shown, the distillation system includes a storage assembly 1 and a conveying pipe assembly 2. The storage assembly 1 includes a storage tank 11 and a guide plate 12. The storage tank 11 has a storage cavity inside, and an upwardly inclined outlet 111 is opened on the side wall of the storage tank 11. The outlet 111 communicates with the storage cavity. The guide plate 12 is located in the storage cavity and includes a guiding top 121 and a connecting tail 122. The connecting tail 122 is connected to the side wall of the storage tank 11 and is located below the outlet 111. The guide plate 12 is inclined so that the guiding top 121 is away from the side wall of the storage tank 11. The conveying pipe assembly 2 includes a conveying pipe 21. One end of the conveying pipe 21 is connected to the outlet 111, and the other end of the conveying pipe 21 is connected to the distillation column 100.

[0036] This distillation system, by placing the discharge port 111 on the side wall of the storage tank 11 and tilting the discharge port 111 upwards, prevents impurities deposited at the bottom of the storage tank 11 from entering the distillation system through the discharge port 111 under the influence of gravity. This effectively reduces the amount of impurities entering the distillation system, ensures the gas-liquid mass transfer efficiency within the distillation system, avoids equipment blockage and other problems, and ensures the stable operation of the distillation system. This, in turn, reduces the frequency of equipment maintenance due to impurity blockage, lowers equipment maintenance costs and downtime. Furthermore, by installing a guide plate 12 on the side wall of the storage tank 11, the flow direction of the material can be changed, allowing the material to smoothly enter the discharge port 111 under the guidance of the guide plate 12. Moreover, due to the tilted setting of the guide plate 12, the material forms a relatively stable flow state near the discharge port 111, thereby reducing the generation of eddies and ensuring stable material output.

[0037] In this embodiment, in order to ensure that the material can flow smoothly into the distillation column 100 through the conveying pipe 21, the conveying pipe 21 is inclined downward and the slope of the conveying pipe 21 is not less than 3°, so that the material can flow smoothly to the distillation column 100 under the action of gravity.

[0038] Optionally, such as Figure 2 As shown, the storage tank 11 includes a tank top 112, a tank body 113, and a tank bottom 114. The tank top 112 is connected to the top of the tank body 113, and the tank bottom 114 is connected to the bottom of the tank body 113 to form a closed storage cavity. The tank bottom 114 has an inverted conical structure and a drain outlet is provided at the top of the cone. The taper angle of the tank bottom 114 is 60°≤θ1≤90°.

[0039] By designing the bottom 114 of the storage tank 11 as an inverted cone shape and opening a drain port at the apex of the cone, the inverted cone shape of the bottom 114 can collect impurities deposited at the bottom, allowing them to be collected and discharged at the drain. Furthermore, by limiting the cone angle θ1 of the bottom 114 (the angle at the tip of the inverted cone shape) to 60°≤θ1≤90°, if the cone angle θ1 is too small (e.g., <60°), the inclination of the bottom 114 is insufficient, and impurities easily deposit in the planar area of ​​the bottom 114; if θ1 is too large (e.g., >90°), the bottom 114 is too steep, and impurities quickly collect at the drain port, but the large instantaneous flow may cause blockage of the drain pipe 31. In this embodiment, the size of the drain port is DN50 to DN100, ensuring that impurities can be discharged smoothly and avoiding blockage.

[0040] The taper angle θ1 of the bottom of the tank 114 can be any value between 60° and 90° or a range between any two values, such as 60°, 65°, 70°, 75°, 80°, 85°, 90°, etc.

[0041] Optionally, such as Figure 2 As shown, the height of the storage tank 11 is H. The distance between the center of the outlet 111 located inside the storage cavity and the cone apex of the tank bottom 114 along the first direction is L1, and satisfies 0.1H≤L1≤0.2H. By limiting the distance L1 between the center of the outlet 111 located inside the storage cavity and the cone apex of the tank bottom 114 along the first direction, if L1<0.1H (too close), the outlet 111 is close to the cone apex of the tank bottom 114, and the deposited impurities are easily drawn into the outlet 111 due to material flow disturbance; if L1>0.2H (too far), the outlet 111 is too high, and too much material is retained at the tank bottom 114, resulting in material waste. In this embodiment, the first direction is defined as the height direction of the storage tank 11, specifically the direction from the tank top 112 to the tank bottom 114.

[0042] Optionally, such as Figure 3 As shown, the distance L2 between the upper edge of the discharge port 111 located inside the storage cavity and the working liquid level in the storage tank 11 along the first direction satisfies 30cm≤L2≤50cm. By limiting the distance L2 between the upper edge of the discharge port 111 located inside the storage cavity and the lowest working liquid level in the storage tank 11 along the first direction to satisfy 30cm≤L2≤50cm, it is ensured that air is not sucked into the top 112 of the tank during discharge. In this embodiment, the normal working liquid level range is typically 60% to 90% of the height of the storage tank 11.

[0043] The distance L2 between the upper edge of the discharge port 111 located inside the inner cavity of the storage tank and the lowest working liquid level in the storage tank 11 along the first direction can be any value between 30cm and 50cm or any two values, such as 30cm, 35cm, 40cm, 45cm, 50cm, etc.

[0044] Optionally, such as Figure 1As shown, the distillation system also includes a sludge discharge assembly 3, which includes a sludge discharge pipe 31, a manual gate valve 32, a pneumatic ball valve 33, and a recovery and treatment device 34. One end of the sludge discharge pipe 31 is connected to a sludge discharge port, and the other end is connected to the recovery and treatment device 34. The manual gate valve 32 and the pneumatic ball valve 33 are connected in series on the sludge discharge pipe 31, with the manual gate valve 32 located between the pneumatic ball valve 33 and the storage tank 11. By installing the pneumatic ball valve 33 on the sludge discharge pipe 31, automated control of the sludge discharge can be achieved by controlling the switch of the pneumatic ball valve 33. The manual gate valve 32 is usually kept open and only needs to be closed to block the flow of impurities when maintenance or repair of the pneumatic ball valve 33 is required. In this embodiment, the pneumatic ball valve 33 can be set to open automatically at a time, such as once every 8 hours for 10 to 30 seconds each time, thereby reducing the deposition of impurities.

[0045] Optionally, such as Figure 2 , Figure 3 As shown, the angle between the guide plate 12 and the side wall of the storage tank 11 is θ2, and θ2 = 15°. By limiting the angle θ2 between the guide plate 12 and the side wall of the storage tank 11, that is, the angle between the surface of the guide plate 12 and the outlet 111 on the opposite side and the inner side wall of the storage tank 11, so that it satisfies θ2 = 15°, the material in the storage tank 11 can move smoothly in laminar flow along the narrow channel between the guide plate 12 and the tank wall. This avoids fluid diffusion and uneven flow velocity distribution caused by an excessively large angle (e.g., >30°), or turbulence caused by an excessively small angle (e.g., <10°) due to a narrow channel and fluid compression. The gentle channel angle reduces the abrupt change in the direction of the fluid during the flow process, reduces the kinetic energy basis for the fluid to rotate and form eddies, and avoids the impurity entrapment caused by eddies from the essence of the flow.

[0046] Optionally, such as Figure 2 , Figure 3 As shown, the distance between the lower edge of the discharge port 111 located inside the storage cavity and the connecting end 122 along the first direction is L3, and L3 = 10cm. By limiting the distance L3 between the lower edge of the discharge port 111 located inside the storage cavity and the connecting end 122 along the first direction to satisfy L3 = 10cm, the 10cm distance provides a necessary buffer area for the fluid guided by the guide plate 12, so that the fluid velocity is uniform before entering the discharge port 111, avoiding the formation of local high-speed rotating vortices near the discharge port 111 due to the suction negative pressure caused by the small distance (e.g., <5cm). At the same time, this distance can disperse the kinetic energy of the fluid, prevent the fluid from generating shear flow at the edge of the discharge port 111, and ensure that the flow state of the entire discharge area is a stable laminar or transitional flow, further suppressing the generation of vortices.

[0047] Optionally, such as Figure 2As shown, the storage assembly 1 also includes multiple cleaning nozzles 13, all of which are disposed within the storage cavity and are evenly spaced along the circumferential direction of the storage tank 11. By providing multiple cleaning nozzles 13 on the inner sidewall of the storage tank 11, hot water or cleaning agents (such as organic solvents) can be periodically introduced into the cleaning nozzles 13, and in conjunction with the drain port, thorough cleaning of impurities at the bottom of the tank 114 can be achieved, suitable for scenarios involving high-viscosity material residues. In this embodiment, the cleaning nozzles 13 are connected to a high-pressure cleaning water pipeline, and the spray angle and spray pressure of the cleaning nozzles 13 can be freely set according to the size of the bottom of the tank 114 and the viscosity of the material.

[0048] Optionally, such as Figure 1 As shown, the conveying pipe assembly 2 also includes a filter 22, a flow control valve 23, a check valve 24, a preheater 25, and a feed drive 26. The filter 22, flow control valve 23, check valve 24, preheater 25, and feed drive 26 are connected in series on the conveying pipe 21. The filter 22 is located between the storage tank 11 and the flow control valve 23. The feed drive 26 is located between the flow control valve 23 and the check valve 24. The preheater 25 is located between the check valve 24 and the distillation column 100. The top of the distillation column 100 is equipped with a temperature detector 200 for regulating the flow control valve 23.

[0049] By installing a feed drive 26 (such as a pump) on the conveying pipeline 21, the material is driven from the storage tank 11 into the distillation column 100. A filter 22 is installed between the storage tank 11 and the flow control valve 23 to intercept fine particles that have not settled completely, ensuring the smooth operation of the distillation system. The feed rate is adjusted by the flow control valve 23 to match the load of the distillation system. The adjustment of the flow control valve 23 is based on the information feedback from the temperature detector 200 on the distillation system. In addition, a check valve 24 is installed on the pipeline to prevent the backflow material of the distillation column 100 from flowing back into the storage tank 11. A preheater 25 is installed between the check valve 24 and the distillation column 100 to preheat the material entering the distillation column 100, thereby improving the distillation effect and efficiency.

[0050] Optionally, such as Figure 2 As shown, the storage assembly 1 also includes a first level gauge 14 and a second level gauge 15. The first level gauge 14 is connected to the storage tank 11 and is located in the storage cavity to detect the level of the material. The second level gauge 15 is connected to the storage tank 11 and is located outside the storage cavity to detect the thickness of impurities.

[0051] A first level gauge 14 is installed inside the storage tank 11 to detect the material level, enabling real-time monitoring of the material level. When the level drops to the upper edge of the discharge port 111, a low-level alarm is triggered, stopping the supply of material to the distillation column 100 and preventing air from entering the distillation system. A second level gauge 15 is installed outside the storage tank 11 to detect the thickness of deposited impurities. When the thickness of deposited impurities exceeds half the height of the center of the discharge port 111, an automatic reminder is triggered to open the drain port for timely cleaning of the deposited impurities. In this embodiment, the first level gauge 14 is a magnetic float level gauge, and the second level gauge 15 is an ultrasonic level sensor. It calculates the thickness of the impurity layer by emitting ultrasonic waves and receiving the reflected signals from the interface between the impurity layer and the material layer at the bottom of the tank 114.

[0052] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A distillation system, said distillation system comprising a distillation column (100) for distillation operations, characterized in that, The distillation system also includes: The storage assembly (1) includes a storage tank (11) and a guide plate (12). The storage tank (11) has a storage cavity inside. The side wall of the storage tank (11) has an upwardly inclined outlet (111) that communicates with the storage cavity. The guide plate (12) is located in the storage cavity and includes a guide top end (121) and a connecting tail end (122). The connecting tail end (122) is connected to the side wall of the storage tank (11) and located below the outlet (111). The guide plate (12) is inclined so that the guide top end (121) is away from the side wall of the storage tank (11). The conveying pipe assembly (2) includes a conveying pipe (21), one end of which is connected to the discharge port (111) and the other end of which is connected to the distillation column (100).

2. The distillation system according to claim 1, characterized in that, The storage tank (11) includes a tank top (112), a tank body (113), and a tank bottom (114). The tank top (112) is connected to the top of the tank body (113), and the tank bottom (114) is connected to the bottom of the tank body (113) to form a closed storage cavity. The tank bottom (114) has an inverted conical structure and a drain outlet is provided at the top of the cone. The taper angle of the tank bottom (114) is 60°≤θ1≤90°.

3. The distillation system according to claim 2, characterized in that, The height of the storage tank (11) is H, and the distance between the center of the outlet (111) located inside the storage cavity and the cone apex of the tank bottom (114) along the first direction is L1, and satisfies 0.1H≤L1≤0.2H.

4. The distillation system according to claim 3, characterized in that, The distance between the upper edge of the discharge port (111) located inside the inner cavity of the storage tank and the lowest working liquid level in the storage tank (11) along the first direction is L2, and satisfies 30cm≤L2≤50cm.

5. The distillation system according to claim 2, characterized in that, The distillation system also includes a drain pipe assembly (3), which includes a drain pipe (31), a manual gate valve (32), a pneumatic ball valve (33), and a recycling device (34). One end of the drain pipe (31) is connected to the drain outlet, and the other end of the drain pipe (31) is connected to the recycling device (34). The manual gate valve (32) and the pneumatic ball valve (33) are connected in series on the drain pipe (31), and the manual gate valve (32) is located between the pneumatic ball valve (33) and the storage tank (11).

6. The distillation system according to claim 1, characterized in that, The angle between the guide plate (12) and the side wall of the storage tank (11) is θ2, and θ2 = 15° is satisfied.

7. The distillation system according to claim 1, characterized in that, The distance between the lower edge of the discharge port (111) located inside the storage cavity and the connecting end (122) along the first direction is L3, and L3 = 10cm.

8. The distillation system according to claim 1, characterized in that, The storage assembly (1) also includes a plurality of cleaning nozzles (13), which are all disposed in the storage cavity and are connected at equal intervals to the side wall of the storage tank (11) along the circumferential direction.

9. The distillation system according to claim 1, characterized in that, The conveying pipe assembly (2) also includes a filter (22), a flow control valve (23), a check valve (24), a preheater (25), and a feed drive (26). The filter (22), the flow control valve (23), the check valve (24), the preheater (25), and the feed drive (26) are connected in series on the conveying pipe (21). The filter (22) is located between the storage tank (11) and the flow control valve (23). The feed drive (26) is located between the flow control valve (23) and the check valve (24). The preheater (25) is located between the check valve (24) and the distillation column (100). The top of the distillation column (100) is provided with a temperature detector (200) for regulating the flow control valve (23).

10. The distillation system according to claim 1, characterized in that, The storage assembly (1) further includes a first level gauge (14) and a second level gauge (15). The first level gauge (14) is connected to the storage tank (11) and located in the storage cavity to detect the level of the material. The second level gauge (15) is connected to the storage tank (11) and located outside the storage cavity to detect the thickness of impurities.

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