Reaction device for polycondensation of aramid fiber raw material

Abstract

The utility model provides a reaction device for polycondensation of aramid fiber raw materials, which belongs to the technical field of manufacturing of spinning raw materials and comprises a reaction mechanism, the reaction mechanism comprises a reaction kettle, the upper surface of the reaction kettle is fixedly connected with a driving motor, and the bottom of the driving motor is adaptively provided with a straight shaft; and a stretching mechanism and a heat mixing mechanism are arranged on the outer surface of the straight shaft in a matched mode, the stretching mechanism comprises a spring fixedly connected to one side of the straight shaft, one end of the spring is connected with a stretching rod in an inserted mode, the stretching rod is connected with a positioning cylinder in a sliding mode, and the end face of the stretching rod is connected with a heat mixing plate in a clamped mode. The reaction kettle is matched with the driving motor and the straight shaft, so that the heat is circularly spread, the heat conduction effect is good, meanwhile, the uniform heat requirement required by polycondensation of aramid fiber raw materials is met, and a spring is fixedly connected with an extension rod, so that a heat mixing plate transfers the heat to the inner cavity surface of the reaction kettle under the action of centrifugal force of the spring, and the heat conduction effect is improved. The polycondensation efficiency of the aramid fiber raw material is higher.

Description

Technical Field

[0001] This utility model belongs to the field of spinning raw material manufacturing technology, specifically relating to a reaction device for the polycondensation of aramid raw materials. Background Technology

[0002] Aramid, also known as aromatic polyamide fiber, is a high-performance synthetic fiber known for its high strength, high modulus, heat resistance and chemical corrosion resistance. The raw materials of aramid are mainly derived from aromatic diacids and aromatic diamines, which are polymerized through polycondensation reaction to produce high molecular weight polymers, and then made into fibers through spinning process.

[0003] In the above, the polycondensation reaction of aramid raw materials needs to be carried out in a reaction cylinder filled with solvent. High temperature and catalyst are usually required to form reactants. However, the heat source is usually high temperature steam. Due to its low density, the gas accumulates at the top of the reaction cylinder. The temperature of the polycondensation solvent inside is not heated evenly, which leads to the temperature conditions not meeting the requirements of the process and low polycondensation efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a reaction apparatus for the polycondensation of aramid raw materials, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A reaction apparatus for polycondensation of aramid raw materials includes a reaction mechanism, the reaction mechanism including a reaction vessel, a drive motor fixedly connected to the upper surface of the reaction vessel, and a straight shaft adapted to be installed at the bottom of the drive motor;

[0007] Furthermore, the outer surface of the straight shaft is fitted with an extension mechanism and a heat mixing mechanism. The extension mechanism includes a spring fixedly connected to one side of the straight shaft, an extension rod inserted into one end of the spring, a support block fixedly connected to the side of the extension rod, a positioning cylinder slidably connected to the outer side of the support block, a supporting right-angle frame fixedly connected to the surface of the positioning cylinder, and a heat mixing plate snapped onto the end face of the extension rod.

[0008] As a preferred embodiment of this utility model, the side of the heat mixing plate is fitted with a snap-fit ​​ring, and there are several snap-fit ​​rings, each of which is movably inserted with a side sleeve.

[0009] In a preferred embodiment of this utility model, the number of heat mixing plates is three, and willow leaf guide plates are fixedly connected to the sides of each of the three heat mixing plates. The heat mixing plates are arranged in a ring on the side of the straight axis.

[0010] As a preferred embodiment of this utility model, the bottom of the straight shaft is fixedly fitted with an adapter groove, the lower surface of the adapter groove is fitted with the inner surface of the reaction vessel, and a mixing frame is fixedly fitted on the outer side of the straight shaft near the top.

[0011] As a preferred embodiment of this utility model, the heat mixing mechanism further includes a heat insulation layer, which is an integrally formed anti-corrosion pad, and the side of the heat insulation layer is bonded to the upper surface of the inner cavity of the reactor.

[0012] As a preferred embodiment of this utility model, a heating mechanism is provided on the lower surface of the reactor. The heating mechanism includes a covering tube, the top opening of which is aligned with the center of the bottom of the reactor, and a heat pump is connected to the bottom of the covering tube.

[0013] As a preferred embodiment of this utility model, the willow leaf guide plate has a symmetrical combination structure, and the edge of the willow leaf guide plate is aligned with the side of the heat mixing plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are: (1) By cooperating with the reactor, the drive motor, and the straight shaft, the straight shaft can rotate continuously, thereby driving the heat circulation and propagation, resulting in better heat conduction. It also meets the uniform heat requirements for the polycondensation of aramid raw materials. The fixed connection between the spring and the extension rod allows the spring to help the extension rod slide with the positioning cylinder under the action of centrifugal force. It also helps the mixing plate to transfer heat to the inner cavity surface of the reactor, resulting in higher polycondensation efficiency of aramid raw materials. At the same time, the fixed connection between the support right angle frame and the positioning cylinder allows the positioning cylinder to be placed stably, and the mixing heat transfer effect of the mixing plate is better.

[0015] (2) By fitting the adapter groove into the inner surface of the reactor, the straight shaft will not leave the center when rotating, thus ensuring the symmetry and consistency of the side mixing surface. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the parts related to achieving continuous mixing of the reaction solvent in this utility model;

[0019] Figure 3This is a schematic diagram of the structure of the parts related to the heating and polycondensation process of aramid raw materials in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the parts related to achieving the heat source supply effect in this utility model;

[0021] Figure 5 This utility model Figure 3 A magnified view of a portion of point A in the middle.

[0022] In the diagram: 100, reaction mechanism; 101, reaction vessel; 102, feeding port; 103, drive motor; 104, straight shaft; 105, adapter groove; 106, mixing frame; 200, extension mechanism; 201, spring; 202, extension rod; 203, support block; 204, positioning cylinder; 205, supporting right-angle frame; 300, heat mixing mechanism; 301, heat mixing plate; 302, side cylinder; 303, willow leaf guide plate; 304, snap ring; 305, insulation layer; 400, heating mechanism; 401, heat pump; 402, covering tube. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an 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 phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example

[0026] Reference Figure 1-2 This is the first embodiment of the present invention. This embodiment provides a reaction device for polycondensation of aramid raw materials, including a reaction mechanism 100. The reaction mechanism 100 includes a reaction vessel 101. A drive motor 103 is fixedly connected to the upper surface of the reaction vessel 101, and a straight shaft 104 is adapted to be installed at the bottom of the drive motor 103.

[0027] Additionally, an extension mechanism 200 and a heat mixing mechanism 300 are fitted on the outer surface of the straight shaft 104. The extension mechanism 200 includes a spring 201 fixedly connected to one side of the straight shaft 104. One end of the spring 201 is inserted into an extension rod 202. A support block 203 is fixedly connected to the side of the extension rod 202. A positioning cylinder 204 is slidably connected to the outer side of the support block 203. A right-angle support frame 205 is fixedly connected to the surface of the positioning cylinder 204. A heat mixing plate 301 is snapped onto the end face of the extension rod 202.

[0028] Specifically, the combination of the reactor 101, drive motor 103, and straight shaft 104 allows the straight shaft 104 to rotate continuously, thereby driving heat circulation and propagation, resulting in good heat conduction. This also meets the uniform heat requirement for the polycondensation of aramid raw materials. The combination of spring 201 and extension rod 202 allows spring 201 to help extension rod 202 slide against positioning cylinder 204 under centrifugal force. This also helps the mixing plate 301 transfer heat to the inner surface of the reactor 101, resulting in higher polycondensation efficiency of aramid raw materials. The fixed connection of support block 203 provides support for extension rod 202 during sliding, preventing the extension plate 202 from shaking. At the same time, the fixed connection between support right angle frame 205 and positioning cylinder 204 allows the positioning cylinder 204 to be placed stably, resulting in better mixing and heat transfer effect of mixing plate 301.

[0029] Furthermore, the side of the heat mixing plate 301 is fitted with a snap-fit ​​ring 304, and there are several snap-fit ​​rings 304, each of which is movably inserted into a side sleeve 302.

[0030] Preferably, the fitting and installation of the snap ring 304 with the heat mixing plate 301 allows the heat mixing plate 301 to remain stable during heat mixing, resulting in more uniform and consistent heat transfer.

[0031] It should be noted that there are three heat mixing plates 301, and willow leaf guide plates 303 are fixedly connected to the sides of the three heat mixing plates 301. The heat mixing plates 301 are arranged in a ring array on the side of the straight axis 104.

[0032] Subsequently, the combination of the willow leaf guide plate 303 and the mixing plate 301 ensures that the heat and solvent are evenly mixed after contact, making the polycondensation process of the aramid raw material more specific. Example

[0033] Reference Figure 2-3 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides related parts to achieve the uniform heat dissipation effect of the heat mixing mechanism 300.

[0034] Specifically, the bottom of the straight shaft 104 is fixedly fitted with an adapter groove 105, the lower surface of the adapter groove 105 is fitted with the inner surface of the reactor 101, and the outer side of the straight shaft 104 near the top is fixedly fitted with a mixing frame 106.

[0035] Furthermore, the fitting of the adapter 105 with the inner surface of the reactor 101 ensures that the straight shaft 104 will not detach from the center when rotating, thus guaranteeing the symmetry and consistency of the side mixing surfaces. The fixed sleeve of the mixing frame 106 and the straight shaft 104 can drive the rapid mixing and conduction of heat through the stirring of the mixing frame 106, helping the aramid raw material to polycondense faster.

[0036] Preferably, the heat mixing mechanism 300 also includes a heat insulation layer 305, which is an integrally formed anti-corrosion pad, and the side of the heat insulation layer 305 is bonded to the upper surface of the inner cavity of the reactor 101.

[0037] The bonding of the insulation layer 305 to the reactor 101 minimizes heat loss and ensures the amount of heat required for the polycondensation process. Example

[0038] Reference Figure 2-5 This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment provides related parts to achieve the heat source supply effect.

[0039] Specifically, a heating mechanism 400 is provided on the lower surface of the reactor 101. The heating mechanism 400 includes a covering tube 402. The top opening of the covering tube 402 is aligned with the center of the bottom of the reactor 101, and the bottom of the covering tube 402 is connected to a heat pump 401.

[0040] Furthermore, the coating tube 402 is aligned with the center of the reactor 101, allowing heat to be directly transferred to the bottom of the reactor 101. The connection between the heat pump 401 and the coating tube 402 can provide a continuous heat source for the reactor 101, ensuring the stable polycondensation of the aramid raw material.

[0041] Preferably, the willow leaf guide plate 303 has a symmetrical combination structure, and the edge of the willow leaf guide plate 303 is aligned with the side of the heat mixing plate 301.

[0042] The willow leaf guide plate 303 and the heating plate 301 are aligned at their edges, so that the solvent in the inner cavity of the reactor 101 is stirred and heated at the same time, resulting in a better polycondensation effect of the aramid raw material.

[0043] Working principle: First, the aramid raw material is fed into the inner cavity of the reactor 101 through the feeding port 102. Then, the heat insulation layer 305 is bonded to the bottom upper surface of the reactor 101. Then, the drive motor 103 is turned on, and the drive motor 103 synchronously drives the straight shaft 104 and the mixing frame 106 to rotate. Then, under the action of centrifugal force, the spring 201 pushes the extension rod 202 to slide in the positioning cylinder 204. At the same time, the mixing plate 301 and the side cylinder 302 continuously mix the solvent in the inner cavity of the reactor 101. Then, the heat pump 401 is turned on, and the heat source is conducted to the bottom of the reactor 101 through the covering pipe 402 for the thermal polycondensation process of the aramid raw material.

[0044] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0045] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0046] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A reaction apparatus for the polycondensation of aramid raw materials, characterized in that: Including reaction mechanism (100), reaction mechanism (100) including reaction kettle (101), the upper surface of reaction kettle (101) is fixedly connected with driving motor (103), the top of reaction kettle (101) is provided with feeding port (102), the bottom of driving motor (103) is adaptively installed straight shaft (104); And, the outer surface of the straight shaft (104) is provided with a stretching mechanism (200) and a hot mixing mechanism (300), the stretching mechanism (200) includes a spring (201) fixedly connected to one side of the straight shaft (104), one end of the spring (201) is inserted into the stretching rod (202), the side of the stretching rod (202) is fixedly connected with the support block (203), the outer side of the support block (203) is slidably connected with the positioning cylinder (204), the surface of the positioning cylinder (204) is fixedly connected with the support right-angle bracket (205), the end surface of the stretching rod (202) is clamped with the hot mixing plate (301).

2. The aramid raw material polycondensation reaction device according to claim 1, characterized in that: The side of the hot mixing plate (301) is adaptively installed with a clamping ring (304), the number of the clamping ring (304) is several, and the side of the clamping ring (304) is movably inserted with a side cylinder (302).

3. The aramid raw material polycondensation reaction device according to claim 2, characterized in that: The number of the hot mixing plate (301) is three, the side of the hot mixing plate (301) is fixedly connected with a willow leaf guide plate (303), and the hot mixing plate (301) is arranged in an annular array on the side of the straight shaft (104).

4. The aramid raw material polycondensation reaction device according to claim 1, characterized in that: The bottom of the straight shaft (104) is fixedly sleeved with an adaptive groove (105), the lower surface of the adaptive groove (105) is embedded with the inner surface of the reaction kettle (101), and the outer side of the straight shaft (104) is fixedly sleeved with a mixing frame (106) near the top.

5. The aramid raw material polycondensation reaction device according to claim 1, characterized in that: The hot mixing mechanism (300) further includes a heat preservation layer (305), the heat preservation layer (305) is an integrally formed anticorrosion pad layer, and the side of the heat preservation layer (305) is bonded with the upper surface of the inner cavity of the reaction kettle (101).

6. The aramid raw material polycondensation reaction device according to claim 1, characterized in that: The lower surface of the reaction kettle (101) is provided with a heating mechanism (400), the heating mechanism (400) includes a cladding pipe (402), the top opening of the cladding pipe (402) is aligned with the bottom center of the reaction kettle (101), and the bottom of the cladding pipe (402) is communicated with a heat pump (401).

7. The aramid raw material polycondensation reaction device according to claim 3, characterized in that: The willow leaf guide plate (303) is a symmetrical combined structure, and the edge of the willow leaf guide plate (303) is aligned with the side of the hot mixing plate (301).

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