Defoaming equipment capable of uniformly distributing high-viscosity materials

Abstract

The utility model discloses defoaming equipment capable of uniformly distributing high-viscosity materials, and belongs to the technical field of carbon fiber production equipment. Comprising an end socket, a tower body, a conical bottom and a discharging port, the end socket, the tower body and the conical bottom are welded to form the whole equipment tower, the discharging port is formed in the bottom of the equipment tower and communicated with the interior of the equipment tower, and a plurality of feeding pipe openings are formed in the top of the equipment tower and communicated with the interior of the equipment tower; according to the utility model, the distribution disc is arranged in the whole equipment and can slowly rotate under the driving of the motor and the speed reducer at the top, so that the stock solution flowing on the surface slowly and uniformly falls onto the filler pressing plate at the bottom, the whole liquid can be uniformly distributed when flowing through the filler, and the filler is more fully utilized; and a higher utilization rate is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of carbon fiber production equipment, and in particular relates to a degassing device capable of evenly distributing high-viscosity materials. Background Art

[0002] The process of preparing carbon fiber includes polymerization, spinning, pre-oxidation, carbonization and graphitization. In the polymerization stage, azobisisobutyronitrile (AIBN) is used as an initiator for free radical polymerization, and its decomposition releases nitrogen. Since the viscosity of the polymer increases immediately after the temperature drops, it is not easy for bubbles to overflow from the polymer. In addition, during the transportation of the spinning solution, excessive liquid flow will also cause bubbles. After spinning through the spinneret, the spinning solution enters the coagulation bath and is stretched after washing. The total stretching ratio is usually 8 to 15 times. If the spinning solution contains bubbles, it will reduce the performance of the carbon fiber product and even cause hairy and broken fibers. In order to eliminate bubbles in the fluid and reduce its impact on product performance, a degassing device is developed. Utility Model Content

[0003] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a degassing device which can make high-viscosity materials evenly distributed.

[0004] The above technical problems of the utility model are mainly solved by the following technical solutions: a degassing device capable of evenly distributing high-viscosity materials, comprising a head, a tower body, a conical bottom and a discharge port, wherein the head, the tower body and the conical bottom are welded to form the entire equipment tower, the discharge port is arranged at the bottom of the equipment tower and is interconnected with the interior, a plurality of feed pipe openings are arranged at the top of the equipment tower, and the plurality of feed pipe openings are interconnected with the interior of the equipment tower, a packing pressure plate and a packing support plate are respectively arranged inside the equipment tower, a packing is arranged between the packing pressure plate and the packing support plate, a hollow frame is arranged at the top of the equipment tower, a motor is arranged inside the frame, a reducer is arranged on the output end of the motor, the output shaft of the reducer passes downward through the top of the equipment tower to the interior of the equipment tower, and a mechanical seal is arranged at the connection between the output shaft and the equipment tower, and the reducer A coupling is provided on the output shaft of the machine, a rotating shaft is provided at the bottom of the coupling, a distribution disc is provided at the bottom of the rotating shaft, the distribution disc is located above the packing pressure plate, a sleeve connected to the rotating shaft is provided at the center of the distribution disc, and the center of the distribution disc is hollow, a plurality of support rods connected to the bottom of the distribution disc are provided at the bottom of the sleeve, two front and rear baffles are provided above each support rod at the top of the distribution disc, a distributor is provided at the top of the frame, a feed port is provided on one side of the top of the distributor, a plurality of distributor pipe ports are provided on the bottom side of the distributor corresponding to the feed pipe port, the output ends of the plurality of distributor pipe ports are connected to the corresponding feed pipe ports, the feed pipe port is located inside the equipment tower, one end of which is connected to a raw liquid feed branch pipe, and the bottom of the raw liquid feed branch pipe extends to the top of the distribution disc.

[0005] Preferably, the two baffles arranged front and back are arranged in a V shape, wherein one of the baffles is located on the inner wall of the distribution disc, and the other baffle is located on the outer wall of the distribution disc, and the intermediate angle is between 120-150 degrees, and a guide plate is arranged between the two baffles arranged front and back, and the guide plate is located below the raw liquid feed branch pipe, and a plurality of groups of circular holes are opened on the surface of the distribution disc, and each group of circular holes is respectively arranged between two adjacent guide plates.

[0006] Preferably, a pressure transmitter and a first liquid level transmitter are respectively provided on the top of the sealing head, and output ends of the pressure transmitter and the first liquid level transmitter both extend into the interior of the equipment tower.

[0007] Preferably, a temperature transmitter is provided on one side of the bottom of the tower body, and a second liquid level transmitter is provided on one side of the conical bottom, and both the temperature transmitter and the second liquid level transmitter extend into the interior of the equipment tower.

[0008] Preferably, equipment inspection holes and gas outlets are respectively arranged on opposite sides of the top of the equipment tower, and a plurality of ear-type supports are arranged on the outer surface of the equipment tower.

[0009] Preferably, a sight glass is provided on one side of the equipment tower, and the sight glass is provided between the corresponding packing pressure plate and the packing support plate.

[0010] The utility model has the beneficial effects: by arranging a distribution disc inside the whole equipment, the distribution disc can be slowly rotated by the top motor and the reducer, so that the stock liquid falling on the surface can slowly and evenly fall onto the filler pressure plate at the bottom, so that the whole liquid can be evenly distributed when flowing through the filler, and the filler can be more fully utilized to achieve a higher utilization rate, thereby improving the bubble removal effect and increasing the carbon fiber performance. At the same time, the diameters of the circular holes on the surface of the distribution disc from the inside to the outside are 30mm, 32mm and 35mm respectively, which can reduce the influence of the centripetal force and make the stock liquid flow downward more evenly. At the same time, the multiple stock liquid feed branches connected to the distributor and the distributor nozzle can more evenly flow the stock liquid into the surface of the distribution disc, so that the distribution of the stock liquid on the distribution disc is more even, which is convenient for the dripping of the stock liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0013] Figure 3 It is a schematic diagram of a top view structure of the utility model;

[0014] Figure 4 It is a three-dimensional structural schematic diagram of the distribution disc of the utility model;

[0015] Figure 5 The utility model is a schematic diagram of the working process of a vacuum degassing tower and an ejector system.

[0016] In the figure: 1. distributor; 2. feed port; 3. distributor nozzle; 4. rack; 5. pressure transmitter; 6. first liquid level transmitter; 7. feed nozzle; 8. head; 9. gas outlet; 10. equipment inspection hole; 11. rotating shaft; 12. distribution disc; 13. tower body; 14. packing pressure plate; 15. ear-type support; 16. sight glass; 17. packing support plate; 18. temperature transmitter; 19. second liquid level transmitter; 20. conical bottom; 21. discharge port; 22. motor; 23. reducer; 24. mechanical seal; 25. coupling; 26. raw liquid feed branch pipe; 27. baffle; 28. round hole; 29. ​​support rod; 30. guide plate; 31. sleeve. DETAILED DESCRIPTION

[0017] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0018] Embodiment: A degassing device capable of evenly distributing high viscosity materials, such as Figure 1-Figure 4 As shown, it includes a head 8, a tower body 13, a conical bottom 20 and a discharge port 21. The head 8, the tower body 13 and the conical bottom 20 are welded to form the entire equipment tower. The aerogel coating is sprayed on the surface of the equipment tower. The aerogel coating has extremely low thermal conductivity based on its unique nanoporous structure, which effectively limits the movement of gas molecules, thereby reducing heat conduction, ensuring that the internal temperature is maintained at about 70°C, the feed temperature of the vacuum degassing tower is between 70 and 75°C; the feed flow rate is between 2400kg / h and 3000kg / h; the vacuum degree of the degassing tower is controlled at about 100Kpa; the gas flow rate is 160m 3 / h~180m 3 / h, a discharge port 21 is arranged at the bottom of the equipment tower and is interconnected with the interior, a plurality of feed pipe openings 7 are arranged on the top of the equipment tower, and the plurality of feed pipe openings 7 are interconnected with the interior of the equipment tower, a packing pressure plate 14 and a packing support plate 17 are respectively arranged inside the equipment tower, a packing is arranged between the packing pressure plate 14 and the packing support plate 17, and the packing adopts a CMR-2P step ring. The packing pressure plate 14 and the packing support plate 17 are both designed in a fence mesh shape, and a gap sufficient for the raw liquid to fall is reserved in the middle, a hollow frame 4 is arranged on the top of the equipment tower, a motor 22 is arranged inside the frame 4, a reducer 23 is arranged on the output end of the motor 22, the output shaft of the reducer 23 passes downward through the top of the equipment tower to the inside of the equipment tower, and a mechanical seal 24 is arranged at the connection between the output shaft and the equipment tower, a coupling 25 is arranged on the output shaft of the reducer 23, and a rotating shaft 11 is arranged at the bottom of the coupling 25.

[0019] A distribution disc 12 is provided at the bottom of the rotating shaft 11, and the distribution disc 12 is located above the filling pressure plate 14. A sleeve 31 connected to the rotating shaft 11 is provided at the center of the distribution disc 12, and the center of the distribution disc 12 is hollow. A plurality of support rods 29 connected to the bottom of the distribution disc 12 are provided at the bottom of the sleeve 31. Two guide plates 30 are provided correspondingly in front and behind each support rod 29 on the top of the distribution disc 12. A distributor 1 is provided at the top of the frame 4. A feed port 2 is provided on one side of the top of the distributor 1. A plurality of distributor nozzles 3 are provided on the bottom side of the distributor 1 corresponding to the feed nozzle 7. The output ends of the plurality of distributor nozzles 3 are interconnected with the corresponding feed nozzles 7. The feed nozzle 7 is located inside the equipment tower and is connected to a raw liquid feed branch pipe 26 at one end. The bottom of the raw liquid feed branch pipe 26 extends to the top of the distribution disc 12.

[0020] Two baffle plates 27 arranged front and rear are arranged in a V shape, one of the baffle plates 27 is located on the inner wall of the distribution disc 12, and the other baffle plate 27 is located on the outer wall of the distribution disc 12, and the middle angle is between 120-150 degrees. A guide plate 30 is arranged between the two baffle plates 27 arranged front and rear, and the guide plate 30 is located below the raw liquid feed branch pipe 26. A plurality of groups of circular holes 28 are opened on the surface of the distribution disc 12, and each group of circular holes 28 is respectively arranged between two adjacent guide plates 30.

[0021] A pressure transmitter 5 and a first liquid level transmitter 6 are respectively arranged on the top of the head 8, and the output ends of the pressure transmitter 5 and the first liquid level transmitter 6 are extended to the inside of the equipment tower. A temperature transmitter 18 is arranged on one side of the bottom of the tower body 13, and a second liquid level transmitter 19 is arranged on one side of the conical bottom 20. Both the temperature transmitter 18 and the second liquid level transmitter 19 extend to the inside of the equipment tower. An equipment inspection hole 10 and a gas outlet 9 are respectively arranged on both sides of the top of the equipment tower. The equipment inspection hole 10 is used for workers to inspect internal parts. At the same time, it is sealed by a flange when not in use. A plurality of ear-type supports 15 are arranged on the outer surface of the equipment tower, and the equipment tower can be installed through the ear-type supports 15 on both sides.

[0022] A sight glass 16 is provided on one side of the equipment tower. The sight glass 16 is provided between the packing pressure plate 14 and the packing support plate 17. The sight glass 16 can quickly observe the covering effect of the stock solution on the internal packing, so as to facilitate workers to judge the degassing of bubbles inside the stock solution during subsequent liquid addition.

[0023] like Figure 5 As shown: after the raw liquid enters the vacuum degassing tower, the gas generated inside and a small amount of acrylonitrile monomer enter the condenser through the gas outlet 9 on one side for condensation. After degassing, the raw liquid enters the raw liquid storage tank and finally enters the spinning unit. The condensate enters the condensate storage tank at the bottom, wherein the excess uncondensed gas will enter the ejector again and be stored in the ejector storage tank, which is used to store dimethyl sulfoxide and other gases. One side of the ejector storage tank is connected to the exhaust gas treatment equipment, and the other side is connected to the cooler. The other end of the cooler is interconnected with the ejector. The cooler cools the high-speed flowing dimethyl sulfoxide, and the cooled liquid is injected into the ejector. The ejector generates low pressure through the high-speed flowing dimethyl sulfoxide to absorb the gas and a small amount of acrylonitrile monomer generated inside the vacuum degassing tower.

[0024] The principle of the utility model is as follows: the external feed pump is started to extract the carbon fiber stock solution and transport it to the feed port 2 of the distributor 1. The stock solution is divided into six streams through the distributor 1 and enters the stock solution feed branch pipe 26. The motor 22 and the reducer 23 are fixed by the frame 4 just above the head 8. The motor shaft of the motor 22 is connected to the rotating shaft 11 through the coupling 25 to drive the distribution disc 12 to rotate. Since the speed of the motor 22 is relatively high, the reducer 23 is required to reduce the speed to 1-3r / min (one to three revolutions per minute). The material falls along the stock solution feed branch pipe 26. At the same time, the guide plate 30 arranged below can guide the stock solution to the two sides. The side flow is dispersed through the distribution disc 12. The stock liquid evenly falls on the top of the packing plate 14 through the circular hole 28 and the edge of the distribution disc 12. Due to the rotation of the distribution disc 12, the liquid will flow to the edge under a certain centripetal force. At the same time, the two baffles 27 arranged opposite to each other at the edge are arranged in a V-shaped manner to better guide the stock liquid to flow out of the distribution disc evenly. Therefore, the diameters of the circular holes 28 from the inside to the outside are 30mm, 32mm and 35mm respectively to reduce the influence of the centripetal force. After the distribution disc 12, the stock liquid falls in a linear distribution in the vacuum degassing tower, which improves the distribution range. The stock liquid enters the packing layer below along the packing plate 14, covers the surface of the packing to form a thin film, and the bubbles expand and burst under vacuum conditions. The gas overflowing from the stock liquid is discharged through the gas outlet 9. The degassed stock liquid is concentrated through the conical bottom 20 and discharged from the discharge port 21.

[0025] By means of the above structure: a pressure transmitter 5 is provided at the head 8 of the vacuum degassing tower, a first liquid level transmitter 6 is used for the safety of the liquid inside the tank to prevent the raw liquid from rushing to the top, a temperature transmitter 18 is provided on the tower body 13, and a second liquid level transmitter 19 is provided on the conical bottom 20. The instrument is used to detect the liquid condition in the tower and transmit it to the control room in time.

[0026] By means of the above structure: the tower body 13 of the vacuum degassing tower is provided with an equipment inspection hole 10 and a sight glass 16, the manhole 10 is convenient for inspection work, and the sight glass 16 is convenient for observing the material conditions inside.

[0027] Finally, it should be pointed out that the above embodiments are only representative examples of the present utility model. Obviously, the present utility model is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model should be considered to belong to the protection scope of the present utility model.

Claims

1. A degassing device capable of evenly distributing high-viscosity materials, comprising a head (8), a tower body (13), a conical bottom (20) and a discharge port (21), wherein the head (8), the tower body (13) and the conical bottom (20) are welded to form the entire equipment tower, and the discharge port (21) is arranged at the bottom of the equipment tower and is interconnected with the interior, characterized in that: A plurality of feed pipe openings (7) are arranged at the top of the equipment tower, and the plurality of feed pipe openings (7) are interconnected with the interior of the equipment tower. A packing pressure plate (14) and a packing support plate (17) are arranged inside the equipment tower, respectively. A packing is arranged between the packing pressure plate (14) and the packing support plate (17). A hollow frame (4) is arranged at the top of the equipment tower. A motor (22) is arranged inside the frame (4). A reducer (23) is arranged at the output end of the motor (22). The output shaft of the reducer (23) passes downward through the top of the equipment tower to the interior of the equipment tower, and a mechanical seal (24) is arranged at the connection between the output shaft and the equipment tower. A coupling (25) is arranged on the output shaft of the reducer (23). A rotating shaft (11) is arranged at the bottom of the coupling (25). A distribution disc (12) is arranged at the bottom of the rotating shaft (11). The distribution disc (12) is located at the packing pressure plate (14). A sleeve (31) connected to the rotating shaft (11) is arranged at the center of the distribution disc (12), and the center of the distribution disc (12) is hollow. A plurality of support rods (29) connected to the bottom of the distribution disc (12) are arranged at the bottom of the sleeve (31). Two front-to-rear symmetrical baffles (27) are arranged above each support rod (29) at the top of the distribution disc (12). A distributor (1) is arranged at the top of the frame (4). A feed port (2) is arranged on one side of the top of the distributor (1). A plurality of distributor pipe ports (3) are arranged on the bottom side of the distributor (1) corresponding to the feed pipe port (7). The output ends of the plurality of distributor pipe ports (3) are connected to the corresponding feed pipe ports (7). One end of the feed pipe port (7) located inside the equipment tower is connected to a raw liquid feed branch pipe (26), and the bottom of the raw liquid feed branch pipe (26) extends to the top of the distribution disc (12).

2. A degassing device capable of evenly distributing high-viscosity materials according to claim 1, characterized in that: The two baffle plates (27) arranged in a front-to-rear manner are arranged in a V shape, wherein one of the baffle plates (27) is located on the inner wall of the distribution disc (12), and the other baffle plate (27) is located on the outer wall of the distribution disc (12), and the intermediate angle is between 120 and 150 degrees. A guide plate (30) is arranged between the two baffle plates (27) arranged in a front-to-rear manner, and the guide plate (30) is located below the raw liquid feed branch pipe (26). A plurality of groups of circular holes (28) are provided on the surface of the distribution disc (12), and each group of circular holes (28) is respectively arranged between two adjacent guide plates (30).

3. The degassing device capable of evenly distributing high-viscosity materials according to claim 1, characterized in that: A pressure transmitter (5) and a first liquid level transmitter (6) are respectively arranged on the top of the sealing head (8), and the output ends of the pressure transmitter (5) and the first liquid level transmitter (6) both extend into the interior of the equipment tower.

4. The degassing device capable of evenly distributing high-viscosity materials according to claim 1, characterized in that: A temperature transmitter (18) is provided on one side of the bottom of the tower body (13), and a second liquid level transmitter (19) is provided on one side of the conical bottom (20), and both the temperature transmitter (18) and the second liquid level transmitter (19) extend into the interior of the equipment tower.

5. The degassing device capable of evenly distributing high-viscosity materials according to claim 1, characterized in that: Equipment inspection holes (10) and gas outlets (9) are respectively arranged opposite to each other on both sides of the top of the equipment tower, and a plurality of ear-type supports (15) are arranged on the outer surface of the equipment tower.

6. The degassing device capable of evenly distributing high-viscosity materials according to claim 1, characterized in that: A sight glass (16) is arranged on one side of the equipment tower, and the sight glass (16) is arranged between the corresponding packing pressure plate (14) and the packing support plate (17).

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