PPTA material dissolving, mixing and deacidifying all-in-one machine

Abstract

The utility model provides a PPTA material dissolving, mixing and deacidifying all-in-one machine. The PPTA material dissolving, mixing and deacidifying all-in-one machine comprises a first feeding opening formed in the upper portion of the front section of a mixing and dissolving tank, a second feeding opening formed in the side of the front section of the mixing and dissolving tank and a discharging opening formed in the lower portion of the tail of the mixing and dissolving tank. The deacidification pipeline opening is formed in the mixing and dissolving tank; wherein the deacidification pipeline opening is connected with one end of a deacidification pipeline, and the fan is connected with the other end of the deacidification pipeline. According to the technical scheme, dissolving, mixing and deacidification of the PPTA material can be integrated, efficient mixing of the material is achieved, the deacidification efficiency is further improved, and the equipment investment and the equipment maintenance cost are reduced.

Description

Technical Field

[0001] This application relates to the technical field of PPTA material dissolution, mixing and deacidification, and specifically relates to an integrated machine for PPTA material dissolution, mixing and deacidification. Background Art

[0002] In the fields of chemical engineering and materials science, poly(p-phenylene terephthalamide) (PPTA), as a high-performance polymer, is widely used in the manufacture of high-performance fibers, composite materials and special coatings due to its excellent mechanical properties, heat resistance and chemical stability. However, during the dissolution process of PPTA, when PPTA is mixed with sulfuric acid, acid gases such as sulfur dioxide and sulfur trioxide will be generated. Currently, a defoaming tower is generally used for secondary defoaming to remove the acid gas in the dissolved matter, which usually involves multiple independent devices such as a dissolution tank, a mixer and a deacidification device. Complicated pipeline connections and manual operations are required between these devices, which not only increase the production cost but also reduce the production efficiency. In addition, due to possible problems such as poor sealing or improper operation between devices, acid gas leakage occurs, further exacerbating the safety hazards during the production process. Content of the Utility Model

[0003] The purpose of the present utility model is to provide an integrated machine for PPTA material dissolution, mixing and deacidification, which can integrate the dissolution, mixing and deacidification of PPTA materials, and realizes the efficient mixing of materials, further improving the deacidification efficiency and product quality during the dissolution process of PPTA.

[0004] To achieve the above purpose, this application is realized through the following technical solutions, specifically including: a first feed inlet arranged above the front section of the mixing and dissolution tank, a second feed inlet arranged on the side of the front section of the mixing and dissolution tank, and a discharge outlet arranged below the tail of the mixing and dissolution tank; a deacidification pipeline port arranged on the mixing and dissolution tank; wherein, one end of the deacidification pipeline is connected to the deacidification pipeline port, and a blower is connected to the other end of the deacidification pipeline.

[0005] The above solution of the present utility model no longer uses a defoaming tower, and an exhaust port is arranged at the top of the rear section of the reactor, so that the acid gas generated during the dissolution process of PPTA can be sucked away in real time by a blower, solving the problem that in the existing dissolution device during the dissolution process in a closed environment, the acid gas will be mixed in the PPTA polymer, resulting in the need for a special defoaming device for deacidification. The above solution of the present utility model improves the deacidification efficiency and reduces the equipment investment and equipment maintenance cost.

[0006] In order to achieve strong stirring and mixing of materials through mutual meshing, as an option for the PPTA material dissolving, mixing and deacidifying integrated machine of the present application, the PPTA material dissolving, mixing and deacidifying integrated machine further includes: a twin-screw compressor disposed in the mixing and dissolving tank; wherein, the twin-screw compressor includes a first screw rotor, a second screw rotor, a first meshing block and a second meshing block, and the first screw rotor and the second screw rotor mesh with each other and have opposite helix directions, and the first meshing block and the second meshing block mesh with each other and have opposite helix directions.

[0007] In order to further efficiently stir and mix materials, as an option for the PPTA material dissolving, mixing and deacidifying integrated machine of the present application, both the first screw rotor and the second screw rotor are double-headed screw rotors and have opposite helix directions.

[0008] In order to ensure the flexibility and easy maintainability of the twin-screw compressor, as an option for the PPTA material dissolving, mixing and deacidifying integrated machine of the present application, the first screw rotor and the first meshing block are disposed in the mixing and dissolving tank through a first rotating core shaft, and the first meshing block is located in the middle of the first screw rotor; the second screw rotor and the second meshing block are disposed in the mixing and dissolving tank through a second rotating core shaft, and the second meshing block is located in the middle of the second screw rotor.

[0009] In order to ensure the flexibility and easy maintainability of the mixing and dissolving tank, as an option for the PPTA material dissolving, mixing and deacidifying integrated machine of the present application, the first rotating core shaft and the second rotating core shaft are respectively disposed on the mixing and dissolving tank by one of screw connection or flange connection.

[0010] In order to transmit power to make the twin-screw compressor rotate synchronously and in opposite directions, as an option for the PPTA material dissolving, mixing and deacidifying integrated machine of the present application, the PPTA material dissolving, mixing and deacidifying integrated machine further includes: a gear set, the gear set includes a first gear and a second gear, the first gear is sleeved on the first rotating core shaft, the second gear is sleeved on the second rotating core shaft, and the first gear and the second gear mesh with each other.

[0011] In order to provide a power source to drive the integrated machine to operate, as an option for the PPTA material dissolving, mixing and deacidifying integrated machine of the present application, the PPTA material dissolving, mixing and deacidifying integrated machine further includes: a driving mechanism, and the driving mechanism is meshed and connected with the gear set.

[0012] To ensure the firmness and tightness of the connection, as an option for the PPTA material dissolving, mixing and deacidifying integrated machine of the present application, one end of the deacidifying pipeline is connected to the deacidifying pipeline opening by one of screw connection or flange connection; the other end of the deacidifying pipeline is also connected to the blower by one of screw connection or flange connection.

[0013] The beneficial effects of the present application are as follows:

[0014] The PPTA material dissolving, mixing and deacidifying integrated machine provided by the technical solution of the present application includes: a first feed inlet arranged above the front section of the mixing and dissolving tank, a second feed inlet arranged on the side of the front section of the mixing and dissolving tank, a discharge outlet arranged below the tail of the mixing and dissolving tank, and a deacidifying pipeline opening arranged on the mixing and dissolving tank. Among them, the first feed inlet is used to add PPTA material, the second feed inlet is used to add solvent or auxiliary materials to facilitate the mixing and dissolving of the PPTA material, the discharge outlet is used to discharge the PPTA material after mixing, dissolving and deacidifying, and the deacidifying pipeline opening is connected to one end of the deacidifying pipeline, and the blower is connected to the other end of the deacidifying pipeline, so that the acid gas generated during the dissolving process of PPTA can be sucked away in real time by the blower, thereby realizing the integration of PPTA material dissolving, mixing and deacidifying. Therefore, in the technical solution of the present application, a defoaming tower is no longer used, solving the problem that in the existing dissolving device during the dissolving process in a closed environment, the acid gas will be mixed in the PPTA polymer, resulting in the need for a special defoaming device for deacidification, and providing high-quality raw materials for subsequent processing. Description of the Drawings

[0015] Figure 1 It is a structural schematic diagram of a PPTA material dissolving, mixing and deacidifying integrated machine;

[0016] Figure 2 It is a sectional structural schematic diagram of a PPTA material dissolving, mixing and deacidifying integrated machine;

[0017] Description of the Reference Numerals in the Drawings

[0018] 100, mixing and dissolving tank; 101, first feed inlet; 102, second feed inlet; 103, discharge outlet; 104, deacidifying pipeline opening;

[0019] 200, deacidifying pipeline;

[0020] 300, blower;

[0021] 400, twin-screw compressor; 401, first screw rotor; 402, second screw rotor; 403, first engaging block; 404, second engaging block;

[0022] 500, first rotating core shaft;

[0023] 600. Second rotating mandrel;

[0024] 700. Gear set; 701. First gear; 702. Second gear;

[0025] 800. Driving mechanism. Detailed implementation manners

[0026] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of this application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0028] Reference to "embodiment" herein means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0029] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features.

[0030] In the description of the embodiments of this application, the orientation or positional relationship indicated by technical terms such as "upper", "inner", "middle part", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of this application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of this application.

[0031] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "set", "provided with", "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0032] The inventors of the present application have proposed a PPTA material dissolution, mixing and deacidification integrated machine. Referring to Figures 1 - 2 , Figure 1 FIG. Figure 2 is a schematic structural diagram of a PPTA material dissolution, mixing and deacidification integrated machine provided by an embodiment of the present application,

[0033] Referring to Figure 1 , the PPTA material dissolution, mixing and deacidification integrated machine provided by the present application includes: a first feed port 101 arranged above the front section of the mixing and dissolution tank 100, a second feed port 102 arranged on the side of the front section of the mixing and dissolution tank 100, and a discharge port 103 arranged below the tail of the mixing and dissolution tank 100, and a deacidification pipeline port 104 arranged on the dissolution and mixing tank 100; wherein, the first feed port 101 is used to add PPTA material, the second feed port 102 is used to add solvent or auxiliary materials to facilitate the mixing and dissolution of the PPTA material, the discharge port 103 is used to discharge the PPTA material after mixing, dissolution and deacidification, and the deacidification pipeline port 104 is connected to one end of the deacidification pipeline 200 and is used to discharge the acidic gas generated during the dissolution process. The fan 300 is connected to the other end of the deacidification pipeline 200, and the fan 300 is used to extract the acidic gas in the deacidification pipeline 200, so as to realize the integration of PPTA material dissolution, mixing and deacidification, and solve the problem that in the existing dissolution device, during the dissolution process in a closed environment, the acid gas will be mixed in the PPTA polymer, resulting in the need for a special defoaming device for deacidification. Moreover, the technical solution of the present application can achieve the effects of improving the deacidification efficiency, reducing the equipment investment and equipment maintenance cost.

[0034] Optionally, one end of the deacidification pipeline 200 is connected to the deacidification pipeline port 104 by one of screw connection or flange connection, and the other end of the deacidification pipeline 200 is also connected to the fan 300 by one of screw connection or flange connection to ensure the firmness and tightness of the connection, prevent the leakage of acidic gas, and at the same time improve the flexibility and maintainability of the integrated machine.

[0035] Continuing to refer to Figure 2 In a further embodiment of the present application, the PPTA material dissolving, mixing and deacidifying integrated machine further includes: a twin-screw compressor 400 disposed in the dissolving and mixing tank 100; wherein, the twin-screw compressor 400 includes a first screw rotor 401, a second screw rotor 402, a first engaging block 403 and a second engaging block 404, and the first screw rotor 401 and the second screw rotor 402 mesh with each other and have opposite helix directions. When the material enters the dissolving and mixing tank 100, through the meshing rotation of the first screw rotor 401 and the second screw rotor 402, strong stirring and mixing of the material are realized, further improving the dissolving efficiency and product quality. The first engaging block 403 and the second engaging block 404 also mesh with each other and have opposite helix directions, further enhancing the stirring and mixing effect.

[0036] Preferably, the first screw rotor 401 and the first engaging block 403 are disposed in the dissolving and mixing tank 100 through a first rotating core shaft 500, and the first engaging block 403 is located in the middle of the first screw rotor 401; the second screw rotor 402 and the second engaging block 404 are disposed in the dissolving and mixing tank 100 through a second rotating core shaft 600, and the second engaging block 404 is located in the middle of the second screw rotor 402. Since both the first screw rotor 401 and the second screw rotor 402 are double-headed screw rotors and have opposite helix directions, and the engaging blocks are placed in the middle of the screw rotors, during the mixing and dissolving process of the material, different degrees of extrusion in different directions can be achieved, which can better discharge the acidic gas generated during the dissolving process and further improve the deacidifying efficiency of the integrated machine.

[0037] Continuing to refer to Figures 1 - 2 In a further embodiment of the present application, the first rotating core shaft 500 and the second rotating core shaft 600 are respectively disposed on the dissolving and mixing tank 100 by one of screw connection or flange connection, thereby further improving the flexibility and maintainability of the integrated machine.

[0038] Optionally, in a further embodiment of the present application, the PPTA material dissolving, mixing and deacidifying integrated machine further includes: a gear set 700, the gear set includes a first gear 701 and a second gear 702, the first gear 701 is sleeved on the first rotating core shaft 500, the second gear 702 is sleeved on the second rotating core shaft 600, and the first gear 701 and the second gear 702 mesh with each other. Through mutual meshing, power is transmitted by rotation, so that the first screw rotor 401 and the second screw rotor 402 rotate synchronously and in opposite directions.

[0039] Optionally, in a further embodiment of the present application, the PPTA material dissolving, mixing and deacidifying integrated machine further includes: a driving mechanism 800, which is meshed and connected with the gear set 700 to provide a power source and drive the twin-screw compressor 400 to operate.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features. However, such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A PPTA material dissolving, mixing and deacidification integrated machine, characterized in that: include: A first feed inlet (101) arranged above the front section of the mixing and dissolving tank (100), a second feed inlet (102) arranged on the side of the front section of the mixing and dissolving tank (100), and a discharge port (103) arranged below the rear section of the mixing and dissolving tank (100); A deacidification pipeline port (104) provided on the mixed dissolution tank (100); The deacidification pipeline port (104) is connected to one end of the deacidification pipeline (200), and the fan (300) is connected to the other end of the deacidification pipeline (200); The PPTA material dissolving, mixing and deacidifying integrated machine further comprises: a twin-screw compressor (400) arranged in the mixing and dissolving tank (100); The twin-screw compressor (400) comprises a first screw rotor (401), a second screw rotor (402), a first meshing block (403) and a second meshing block (404), and the first screw rotor (401) and the second screw rotor (402) are meshed with each other and have opposite rotation directions, and the first meshing block (403) and the second meshing block (404) are meshed with each other and have opposite rotation directions.

2. The PPTA material dissolving, mixing and deacidifying integrated machine according to claim 1, characterized in that: The first screw rotor (401) and the second screw rotor (402) are both double-headed screw rotors and have opposite rotation directions.

3. The PPTA material dissolving, mixing and deacidifying integrated machine according to claim 1, characterized in that: The first screw rotor (401) and the first meshing block (403) are arranged in the mixing and dissolving tank (100) via a first rotating core shaft (500), and the first meshing block (403) is located in the middle of the first screw rotor (401); The second screw rotor (402) and the second meshing block (404) are arranged in the mixing and dissolving tank (100) via a second rotating core shaft (600), and the second meshing block (404) is located in the middle of the second screw rotor (402).

4. The PPTA material dissolving, mixing and deacidifying integrated machine according to claim 3 is characterized in that: The first rotating mandrel (500) and the second rotating mandrel (600) are respectively arranged on the mixing and dissolving tank (100) by means of a screw connection or a flange connection.

5. The PPTA material dissolving, mixing and deacidifying integrated machine according to claim 4 is characterized in that: The PPTA material dissolving, mixing and deacidifying integrated machine also includes: a gear set (700), the gear set includes a first gear (701) and a second gear (702), the first gear (701) is sleeved on the first rotating core shaft (500), the second gear (702) is sleeved on the second rotating core shaft (600), and the first gear (701) and the second gear (702) are meshed with each other.

6. The PPTA material dissolving, mixing and deacidifying integrated machine according to claim 5, characterized in that: The PPTA material dissolving, mixing and deacidifying integrated machine further comprises: a driving mechanism (800), wherein the driving mechanism (800) is meshingly connected to the gear set (700).

7. The PPTA material dissolving, mixing and deacidifying integrated machine according to claim 1, characterized in that: One end of the deacidification pipeline (200) is connected to the deacidification pipeline port (104) by means of a screw connection or a flange connection; The other end of the deacidification pipeline (200) is also connected to the fan (300) via a screw connection or a flange connection.

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