Falling strip distribution equipment and devolatilization system

Abstract

According to the falling strip distribution equipment and the devolatilization system, in the falling strip distribution equipment, polymer materials enter a barrel from a feeding end, and a system where a falling strip distributor is located can apply pressure to the interior of the barrel, so that the materials are in a pressurized state. Materials firstly fall to the damping distribution piece in the barrel body, the specific surface area of the materials is enlarged, then the materials fall to the strip falling end from the damping distribution piece, and under the pressurization state, the materials are forced to pass through the strip falling through holes and fall in a silk thread shape, so that the purpose of polymer devolatilization is achieved. A heating space is formed between the jacket connected to the cylinder in a sleeving manner and the cylinder, a heating medium is introduced into the heating space through the heater so as to change the temperature, adjust the temperature and pressure, and a damping distribution piece is matched, so that high devolatilization efficiency can be achieved for polymers with high viscosity, the temperature and the pressure are changed, and the devolatilization effect is improved. Effective devolatilization of polymers with different viscosities can be realized, and the technical problem that the universality of the polymers with different viscosities is not ideal enough is solved to a certain extent.

Description

Technical Field

[0001] The present application belongs to the technical field of polymer devolatilization, and in particular relates to a strip distribution device and a devolatilization system. Background Art

[0002] Polymer devolatilization is a process for separating low molecular weight components from a polymer system. This process is used in the production of polymers such as polyolefin elastomers.

[0003] At present, the devolatilization of polymers such as polyolefin elastomers is mainly carried out through dynamic devolatilization equipment similar to spiral separation. However, due to the high viscosity and low dispersion coefficient of polyolefin elastomers, dynamic devolatilization equipment is difficult to effectively remove monomers, solvents, small molecules and intermediates in polymers, and is difficult to apply to the devolatilization of polymers with different viscosities, and its versatility is not ideal. Utility Model Content

[0004] The present application aims to at least to some extent solve the technical problem that the versatility of the polymers with different viscosities is not ideal. To this end, the present application provides a strip distribution device and a devolatilization system.

[0005] The embodiment of the present application provides a falling bar distribution device, comprising a falling bar distributor and a heater.

[0006] The bar drop distributor comprises a cylinder, a damping distribution member and a jacket. The two ends of the cylinder are a bar drop end and a feed end for materials to enter. The bar drop end is provided with a plurality of parallel bar drop through holes. The damping distribution member is arranged in the cylinder and located between the feed end and the bar drop end. The jacket is connected to the cylinder and forms a heating space with the cylinder.

[0007] The heater is used to pass a heating medium into the heating space.

[0008] In some or certain embodiments, in a direction from the feed end to the falling end, the cross-sectional area of ​​the damping distribution member increases.

[0009] In some or certain embodiments, the damping distribution member comprises:

[0010] A rotating body extending axially along the axial direction of the cylinder;

[0011] The annular bracket is arranged around the rotating body and connects the rotating body and the cylinder.

[0012] In some or certain embodiments, the rotating body includes a hemispherical portion and a truncated cone portion whose small end is fitted and connected to the hemispherical portion.

[0013] In some or certain embodiments, the barrel comprises:

[0014] cylindrical body;

[0015] a spherical sealing head coaxially connected to one end of the cylindrical body, wherein the spherical sealing head is configured as the feed end;

[0016] an annular flange coaxially connected to the other end of the cylindrical body, the annular flange also being coaxially sealedly connected to the jacket;

[0017] The rod drop hole plate has a peripheral wall sealed to the inner peripheral wall of the annular flange and is provided with the rod drop through hole. The rod drop hole plate is configured as a rod drop end.

[0018] In some or certain embodiments, the spherical head is an elliptical head, and the spherical head is provided with a head body and a feed pipe inserted into the head body.

[0019] In some or certain embodiments, the jacket surrounds the cylinder along the circumference of the cylinder, and two axial ends are connected to the cylinder through annular flanges.

[0020] In some or certain embodiments, the axial direction of the drop rod through hole extends along the axial direction of the cylinder, and the spacing between two adjacent drop rod through holes is the same.

[0021] A devolatilization system provided in an embodiment of the present application includes:

[0022] A plurality of devolatilization devices connected in series, wherein the outlet of one of the two adjacent devolatilization devices is connected to the inlet of the other devolatilization device;

[0023] As mentioned above, in the strip distribution device corresponding to the plurality of devolatilization devices one by one, the outlet of one of the two adjacent devolatilization devices is connected to the inlet of the other devolatilization device through the corresponding strip distribution device.

[0024] In some or certain embodiments, the damping distribution member includes a rotating body extending axially along the axial direction of the cylinder, and the maximum diameter of the rotating body is proportional to the viscosity of the material processed by the corresponding falling strip distribution equipment.

[0025] Advantageous effects provided by one or more embodiments of the present application:

[0026] In the strip distribution equipment, the polymer material that needs to be devolatilized can enter the cylinder in the strip distributor through the feed end. The feed end of the cylinder is connected to the discharge port to receive the polymer-related materials. In the system used by the strip distributor, a certain pressure can be applied to the inside of the cylinder to make the polymer-related materials entering the cylinder in a pressurized state. The material entering the cylinder first falls to the damping distribution member located in the cylinder and between the feed end and the strip end. The damping distribution member is designed in a conical shape to expand the specific surface area of ​​the polymer-related materials and increase the rate and efficiency of devolatilization. The polymer material flows around along the inclined surface of the damping distribution member to the edge of the strip orifice plate below, and converges from the edge of the strip orifice plate to the center. Under the pressurized state, the material can be forced to pass through the strip through hole and fall in the form of silk threads, allowing the volatile components to easily escape from the silk threads, thereby achieving the purpose of polymer devolatilization and improving the efficiency of polymer-related material devolatilization. The strip distributor also has a jacket connected to the cylinder, and a heating space is formed between the jacket and the cylinder. A heater is used to introduce a heating medium into the heating space to change the temperature inside the cylinder. Devolatilization of polymer-related materials is carried out at a certain temperature and pressure. At the same time, the damping distribution parts are added to increase the specific surface area of ​​the polymer. Overall, it also has a better devolatilization efficiency for polymers with higher viscosities. By changing the temperature and pressure, effective devolatilization of polymers of different viscosities can be achieved, which to a certain extent solves the technical problem of unsatisfactory universality for polymers of different viscosities. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A schematic structural diagram of a strip distribution device in some or certain embodiments of the present application is shown.

[0029] Figure 2 A schematic structural diagram of a damping distribution member in some or certain embodiments of the present application is shown.

[0030] Figure 3 A schematic structural diagram of a falling strip orifice plate in some or certain embodiments of the present application is shown.

[0031] Figure 4 Shows this application Figure 3 Schematic diagram of the local structure in.

[0032] Figure 5 A simplified structural schematic diagram of a devolatilization system in some or certain embodiments of the present application is shown.

[0033] Figure numerals: 1. bar distributor; 11. cylinder; 111. feed end; 112. bar end; 1121. bar through hole; 113. cylindrical body; 114. spherical head; 115. annular flange; 116. bar orifice plate; 1161. circular area; H, spacing; 12. damping distribution member; 121. rotating body; 1211. hemispherical part; 1212. truncated cone part; 122. annular bracket; 1221. annular part; 1222. rod part; 13. jacket; 131. sleeve body; 132. inlet pipe; 133. outlet pipe; 14. heating space; 2. heater; 10. devolatilization equipment. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various fabric pieces in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0038] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0039] Figure 1 A schematic diagram of the structure of a strip distribution device in some or certain embodiments of the present application is shown, with reference to Figure 1 , a falling bar distribution device provided in an embodiment of the present application includes a falling bar distributor 1 and a heater 2.

[0040] The bar drop distributor 1 comprises a cylinder 11, a damping distribution member 12 and a jacket 13. The two ends of the cylinder 11 are respectively a bar drop end 112 and a feed end 111 for materials to enter. The bar drop end 112 is provided with a plurality of parallel bar drop through holes 1121. The damping distribution member 12 is arranged in the cylinder 11 and is located between the feed end 111 and the bar drop end 112. The jacket 13 is sleeved and connected to the cylinder 11 and forms a heating space 14 between the cylinder 11.

[0041] The heater 2 is used to pass a heating medium into the heating space 14 .

[0042] In the strip distribution equipment, the polymer material that needs to be devolatilized can enter the cylinder 11 in the strip distributor 1 through the feed end 111. The feed end 111 of the cylinder 11 is connected to the discharge port to receive the polymer-related materials. In the system used by the strip distributor 1, a certain pressure can be applied to the inside of the cylinder 11, so that the polymer-related materials entering the cylinder 11 are in a pressurized state. The material entering the cylinder 11 first falls to the damping distribution member 12 located in the cylinder 11 and between the feed end 111 and the strip end 112. The damping distribution member 12 can expand the specific surface area of ​​the polymer-related materials and increase the rate and efficiency of devolatilization. The polymer material then falls from the damping distribution member 12 to the strip end 112. Under the pressurized state, the material can be forced to pass through the strip through hole 1121 and fall in the form of a thread to allow the volatile components to easily escape from the thread, thereby achieving the purpose of polymer devolatilization and improving the efficiency of polymer-related material devolatilization. The strip distributor 1 also has a jacket 13 which is connected to the cylinder 11, and a heating space 14 is formed between the jacket 13 and the cylinder 11. The heater 2 is used to introduce a heating medium into the heating space 14 to change the temperature in the cylinder 11, so that the polymer-related materials can be devolatilized at a certain temperature and a certain pressure. At the same time, the damping distribution member 12 is added to increase the specific surface area of ​​the polymer. As a whole, the devolatilization efficiency is also good for polymers with higher viscosity. By changing the temperature and pressure, the effective devolatilization of polymers with different viscosities can be achieved, which to a certain extent solves the technical problem of unsatisfactory versatility for polymers with different viscosities.

[0043] Moreover, the devolatilization method of this strip distribution equipment is mainly static devolatilization, which has a simpler structure, low power consumption, and high reliability. It can effectively devolatilize polymers with high viscosity at a low cost.

[0044] It should be noted that when the strip distribution device is in use, the feed end 111 of the cylinder 11 can be located above the strip end 112 of the cylinder 11, so that in addition to the positive pressure applied by the environment or system in which the strip distribution device is used, gravity can also cause the material to fall to the strip through hole 1121 of the strip end 112 for volatilization. The strip distribution device can be arranged in a multi-stage devolatilization system. Usually, when the devolatilization system itself causes the polymer to flow, there will be a pressure difference between the input end and the output end of the system device.

[0045] In some or certain embodiments, in a direction from the feed end 111 to the strand drop end 112 , the cross-sectional area of ​​the damping distribution member 12 increases.

[0046] The polymer material or polymer-related material can be fully contacted with the damping distribution member 12, increasing the specific surface area to increase the volatilization efficiency. In addition, under a certain pressure environment inside the cylinder 11, when the material falls from the damping distribution member 12 to the strip end 112, it can first fall to the outer periphery of the strip end 112, and then move from the outer periphery of the strip end 112 to the middle low-pressure area of ​​the strip end 112, so that the material falls more evenly from the strip end 112, which can reduce the possibility of blockage of the strip holes, improve the reliability of devolatilization, and also improve the devolatilization efficiency.

[0047] Figure 2 A schematic diagram of the structure of a damping distribution member in some or certain embodiments of the present application is shown, with reference to Figure 2 In some or certain embodiments, the damping distribution member 12 includes:

[0048] The rotating body 121 extends axially along the axial direction of the cylinder 11 .

[0049] The annular bracket 122 surrounds the rotating body 121 and connects the rotating body 121 and the cylinder 11 .

[0050] The damping sub-component is configured as a rotating body 121 extending axially along the axial direction of the cylinder 11, and the rotating body 121 is connected to the cylinder 11 through an annular bracket 122 surrounding itself, which facilitates the assembly of the rotating body 121 and the flow of materials is relatively smooth, which is convenient for the devolatilization of materials such as polymers.

[0051] In some or certain embodiments, the feed end 111 of the cylinder 11 may also extend along the axial direction of the cylinder 11, and the axial direction of the damping distribution member 12 also extends along the axial direction of the cylinder 11. This is beneficial to increase the specific surface area of ​​materials such as polymers and improve the devolatilization efficiency of polymers.

[0052] In some or certain embodiments, the rotating body 121 includes a hemispherical portion 1211 and a truncated cone portion 1212 whose small end is fitted and connected to the hemispherical portion 1211. The specific surface area of ​​materials such as polymers can be increased to a large extent to improve the devolatilization efficiency of the polymers, so that the falling strip distribution device can be suitable for devolatilization of polymers with different viscosities.

[0053] It should be noted that the small end is the end of the round table cloth with a smaller diameter.

[0054] In some or certain embodiments, the annular support 122 may include:

[0055] The plate-shaped annular portion 1221 may be distributed along the axial direction of the cylinder 11 , and the outer circumferential wall of the annular portion 1221 may be closely connected to the inner circumferential wall of the cylinder 11 .

[0056] The rod 1222 is distributed at intervals along the circumference of the rotating body 121, and the two ends of the rod 1222 are respectively connected to the outer circumferential wall of the rotating body 121 and the inner circumferential wall of the annular portion 1221. The damping sub-component has a high overall strength and is easy to connect and install with the cylinder 11.

[0057] In some or certain embodiments, the rod 1222 may be tilted to facilitate the falling of the polymer.

[0058] In some or certain embodiments, the damping distribution member 12 may also be a conical structure, and a plurality of connecting rods may be connected to the circumference of the cone at intervals, and connected to the inner wall of the cylinder 11 through the connecting rods. This can also increase the specific surface area of ​​materials such as polymers.

[0059] In some or certain embodiments, the barrel 11 may include:

[0060] Cylindrical body 113.

[0061] A spherical seal 114 is coaxially connected to one end of the cylindrical body 113 , and the spherical seal 114 is configured as a feed end 111 .

[0062] An annular flange 115 is coaxially connected to the other end of the cylindrical body 113 , and the annular flange 115 is also coaxially and sealingly connected to the jacket 13 .

[0063] The rod drop hole plate 116 has a peripheral wall sealedly connected to the inner peripheral wall of the annular flange 115 and is provided with a rod drop through hole 1121 . The rod drop hole plate 116 is configured as a rod drop end 112 .

[0064] The cylinder 11 adopts the above structure, and the volume occupied by the cylinder 11 is small. The cylinder 11 has a large pressure-bearing capacity and can be suitable for systems with higher pressures. The increase in pressure is also conducive to the distribution of polymer materials with higher viscosity, etc., thereby improving the versatility of the cylinder 11.

[0065] In some or certain embodiments, the cylinder 11 may also be a spherical cylinder 11, etc., and a feed end 111 and a drop end 112 are respectively arranged on both sides of the spherical cylinder 11. It can also devolatilize polymer materials with high viscosity.

[0066] In some or certain embodiments, the spherical seal 114 is an elliptical seal, and the spherical seal 114 is provided with a seal body and a feed pipe inserted into the seal body.

[0067] In some or certain embodiments, the jacket 13 surrounds the cylinder 11 along the circumference of the cylinder 11, and the two axial ends are connected to the cylinder 11 through annular flanges 115. This can make the falling bar distributor 1 easier to prepare and reduce the overall preparation cost of the falling bar distributor 1.

[0068] In some or certain embodiments, in the falling bar distributor 1, for example, the jacket 13, the cylinder 11, the annular flange 115, and the damping components can be fixed by welding, which can improve the connection strength of the falling bar distributor 1 and thus improve the use strength.

[0069] Figure 3 A schematic diagram of the structure of a falling strip orifice plate in some or certain embodiments of the present application is shown. Figure 4 Shows this application Figure 3 Schematic diagram of the local structure in Figure 3 and Figure 4 It can be known that in some or certain embodiments, the axial direction of the drop rod through hole 1121 extends along the axial direction of the cylinder 11, and the spacing H between two adjacent drop rod through holes 1121 is the same.

[0070] In some or certain embodiments, the slat drop hole plate 116 may be a circular plate, the axial direction of the circular plate extends along the axial direction of the cylinder 11, the circular plate may be provided with a coaxial circular area 1161, the diameter of the circular area 1161 is smaller than the diameter of the slat drop hole plate 116, and the circular area 1161 is provided with a plurality of slat drop holes 1121 whose axes extend along the axial direction of the cylinder 11. This can facilitate the devolatilization of the polymer and help improve the use strength of the slat drop distributor 1.

[0071] In some or certain embodiments, according to different requirements, the spacing H between two adjacent through holes 1121 on the stripping hole plate 116 can be 5 mm to 50 mm, the aperture of each stripping hole 1121 can be between 0.5 mm and 6 mm, the thickness of the stripping hole plate 116 can be 10 mm to 200 mm, and the difference between the diameter of the circular area 1161 and the stripping hole plate 116 can be 20 mm to 200 mm. It is easy to prepare and has high applicability.

[0072] In some or certain embodiments, the jacket 13 may include a sleeve-shaped body 131, an inlet pipe 132 and an outlet pipe 133, the sleeve-shaped body 131 is sleeved around the barrel 11 along the circumference of the barrel 11, the inlet pipe 132 and the outlet pipe 133 are connected to the sleeve-shaped body 131 at intervals, and the inlet pipe 132 and the outlet pipe 133 are both connected to the heating space 14 formed between the sleeve body and the barrel 11. The heater 2 may be configured as a heater 2 such as a heat exchange tube, such as a heating medium such as a heat medium enters from the inlet pipe 132, and the heating medium flows out from the outlet pipe 133 to heat the internal environment of the barrel 11. The circulation of the system is good.

[0073] In some or certain embodiments, the inlet pipe 132 may be disposed at one end of the sleeve body 131 close to the strip falling end 112, and the outlet pipe 133 may be disposed at one end of the sleeve body 131 close to the feeding end 111. The cylinder 11 can be heated more evenly.

[0074] Based on the same inventive concept, the embodiment of the present application also provides a devolatilization system, Figure 5 A simplified schematic diagram of a devolatilization system in some or certain embodiments of the present application is shown, with reference to Figure 5 It can be seen that the devolatilization system may include:

[0075] For the plurality of devolatilization devices 10 connected in series, the outlet of one devolatilization device 10 of two adjacent devolatilization devices 10 is connected to the inlet of the other devolatilization device 10 .

[0076] As for the falling strip distribution device as mentioned above and corresponding to the multiple devolatilization devices 10 one by one, in two adjacent devolatilization devices 10, the outlet of one devolatilization device 10 is connected to the inlet of the other devolatilization device 10 through the corresponding falling strip distribution device.

[0077] The structure of the strip distribution device and its corresponding technical effects can be referred to above. In a devolatilization system including multiple devolatilization devices 10, adding a strip distribution device corresponding to the devolatilization device 10 can increase the versatility of the devolatilization system and improve the devolatilization effect of the devolatilization system.

[0078] It should be noted that Figure 5 The specific structure of the devolatilization device 10 and the specific structure of the falling strip distribution device are simplified, and only rectangular boxes and arrows are used to indicate the orientation between the devices and the devolatilization process.

[0079] In some or certain embodiments, the damping distribution member 12 includes a rotating body 121 extending axially along the axial direction of the cylinder 11, and the maximum diameter of the rotating body 121 is proportional to the viscosity of the material processed by the corresponding strip distribution device. In a devolatilization system with multi-stage devolatilization devices 10, the closer the devolatilization device 10 is to the end of the devolatilization system, the higher the viscosity of the polymer, and the diameter of the rotating structure in the strip distribution device can be increased accordingly to increase the specific surface area of ​​the polymer, because the polymer with higher viscosity is devolatilized.

[0080] In some or certain embodiments, the multiple devolatilization devices 10 in the devolatilization system may have different structures, for example, they may be flash devolatilization devices 10, or they may be flash tanks or extruders, etc. In the devolatilization system, the polymer may be devolatilized in sequence along the first-stage flash tank devolatilization device, the strip distribution device, the second-stage flash tank devolatilization device, the strip distribution device, the third-stage flash tank or extruder, etc. The devolatilization effect is good.

[0081] In some or certain embodiments, the devolatilization system may further include a gear pump (not shown in the figure), and the flash tank may be connected to the gear pump to apply pressure to the system.

[0082] It should be noted that the parallel, perpendicular, and coaxial involved in this application are relative to the concepts of absolute parallel, absolute perpendicular, and absolute coaxial in geometry, and an angle deviation of 0 to 5° is allowed, and this application does not impose any limitation on this.

[0083] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0084] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0085] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A falling strip distribution device, characterized in that: Including falling bar distributor and heater, The bar drop distributor comprises a cylinder, a damping distribution member and a jacket. The two ends of the cylinder are a bar drop end and a feed end for materials to enter. The bar drop end is provided with a plurality of parallel bar drop through holes. The damping distribution member is arranged in the cylinder and located between the feed end and the bar drop end. The jacket is connected to the cylinder and forms a heating space with the cylinder. The heater is used to pass a heating medium into the heating space.

2. The falling strip distribution device according to claim 1, characterized in that: In a direction from the feed end to the strand drop end, the cross-sectional area of ​​the damping distribution member increases.

3. The falling strip distribution device according to claim 2, characterized in that: The damping distribution member comprises: A rotating body extending axially along the axial direction of the cylinder; The annular bracket is arranged around the rotating body and connects the rotating body and the cylinder.

4. The falling strip distribution device according to claim 3, characterized in that: The rotating body comprises a hemispherical portion and a truncated cone portion whose small end is fitted and connected to the hemispherical portion.

5. The falling strip distribution device according to any one of claims 1 to 4, characterized in that: The cylinder comprises: cylindrical body; a spherical sealing head coaxially connected to one end of the cylindrical body, wherein the spherical sealing head is configured as the feed end; an annular flange coaxially connected to the other end of the cylindrical body, the annular flange also being coaxially sealedly connected to the jacket; The rod drop hole plate has a peripheral wall sealed to the inner peripheral wall of the annular flange and is provided with the rod drop through hole. The rod drop hole plate is configured as a rod drop end.

6. The falling strip distribution device according to claim 5, characterized in that: The spherical seal head is an elliptical seal head, and the spherical seal head is provided with a seal head body and a feed pipe inserted into the seal head body.

7. The falling strip distribution device according to any one of claims 1 to 3, characterized in that: The jacket surrounds the cylinder along the circumference of the cylinder, and two axial ends are connected to the cylinder through annular flanges.

8. The falling strip distribution device according to any one of claims 1 to 3, characterized in that: The axial direction of the rod drop through hole extends along the axial direction of the cylinder, and the distances between two adjacent rod drop through holes are the same.

9. A devolatilization system, characterized in that: include: A plurality of devolatilization devices connected in series, wherein the outlet of one of the two adjacent devolatilization devices is connected to the inlet of the other devolatilization device; The falling strip distribution device as described in any one of claims 1 to 8 and corresponding to the plurality of devolatilization devices one by one, wherein the outlet of one of the two adjacent devolatilization devices is connected to the inlet of the other devolatilization device through the corresponding falling strip distribution device.

10. The devolatilization system according to claim 9, characterized in that: The damping distribution member comprises a rotating body extending axially along the axial direction of the cylinder, and the maximum diameter of the rotating body is proportional to the viscosity of the material processed by the corresponding falling strip distribution equipment.

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