Continuous polyacrylonitrile polymerization apparatus for carbon fibers

Abstract

The utility model provides a kind of continuous polyacrylonitrile polymerization equipment for carbon fiber, it is related to carbon fiber technical field, the utility model includes jar body, the side of jar body is equipped with motor, the output of motor is equipped with round bar, the side of round bar is equipped with several stirring plates, the side of jar body is equipped with cleaning device, cleaning device passes through water outlet pipe and scraper, to clean jar body inner wall, the cleaning device includes water pump, inlet pipe, connecting pipe, several water outlet pipes, bolt, fixed plate and scraper, water pump is arranged on jar body upper end, the utility model can clean the raw materials adhered to the inner wall of jar body by using cleaning device, avoid that raw materials of last reaction can be left on the inner wall of jar body, then cause new raw materials to mix with residual raw materials, make proportion change, proportion change can affect the situation that new round polymerization reaction effect occurs, to improve the use effect of polymerization equipment.

Description

Technical Field

[0001] This utility model relates to the field of carbon fiber, and in particular to a continuous polyacrylonitrile polymerization device for carbon fiber. Background Technology

[0002] Polyacrylonitrile polymerization equipment is used to produce polyacrylonitrile resin or fiber, and is mainly used in the production of carbon fiber, filter materials, water treatment materials and various high-performance resins.

[0003] In the production of polyacrylonitrile for carbon fiber, the material is fed into the reactor tank, which is then heated to a suitable temperature. A motor drives a fixed stirring plate on one side of a cylindrical rod to stir and mix the raw materials, allowing them to polymerize. After polymerization, the raw materials are transported to other equipment for impurity removal, and new raw materials are fed into the reactor for continuous production. During continuous use of the tank, some of the previously reacted material remains on the inner wall. This mixing of new and residual material alters the ratio, affecting the efficiency of the next polymerization reaction and thus impacting the performance of the polymerization equipment. Utility Model Content

[0004] The technical problem this invention aims to solve is that when the tank is used continuously, some of the raw materials from the previous reaction remain on the inner wall of the tank. This causes the new raw materials to mix with the residual raw materials, resulting in a change in the ratio. This change in ratio affects the effect of the new round of polymerization reaction, thus causing problems that affect the performance of the polymerization equipment.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a continuous polyacrylonitrile polymerization equipment for carbon fiber, including a tank, a motor is provided on one side of the tank, a round rod is provided at the output end of the motor, a plurality of stirring plates are provided on one side of the round rod, and a cleaning device is provided on one side of the tank, the cleaning device cleaning the inner wall of the tank through a water outlet pipe and a scraper.

[0006] Preferably, the cleaning device includes a water pump, an inlet pipe, a connecting pipe, several outlet pipes, bolts, a fixing plate, and a scraper. The water pump is located at the upper end of the tank, the inlet pipe is located on one side of the water pump, the connecting pipe is located on one side of the water pump, the several outlet pipes are inclinedly located on one side of the outlet pipes with their outlets close to the inner wall of the tank, the bolts are inserted into one side of the fixing plate and threadedly connected to the scraper, the scraper is located on one side of the fixing plate and its size is adapted to the size of the tank.

[0007] Preferably, the fixing plate has several anti-slip blocks on both sides to increase the friction of the fixing plate.

[0008] Preferably, guide plates are inclinedly arranged on both sides of the fixing plate, and the guide plates increase the size of the entrance of the fixing plate.

[0009] Preferably, a positioning post is provided on one side of the stirring plate, and the positioning post penetrates the fixing plate to position the fixing plate.

[0010] Preferably, a reinforcing plate is provided on one side of the fixed plate, and one side of the reinforcing plate is connected to the scraper to improve the connection strength between the scraper and the fixed plate.

[0011] Preferably, the outlet pipe has a tapered tube on the side away from the connecting pipe, and the tapered tube on the side away from the connecting pipe has a smaller size.

[0012] Preferably, the inner wall of the tank is provided with a plurality of support plates, and one side of the plurality of support plates is fixed to the connecting pipe.

[0013] In summary, the beneficial effects of this utility model are as follows: By using a cleaning device, the raw materials adhering to the inner wall of the tank can be cleaned, preventing the residue of the previous reaction from remaining on the inner wall of the tank. This would cause the new raw materials to mix with the residue, resulting in changes in the ratio. Such changes in the ratio would affect the effect of the new round of polymerization reaction, thereby improving the performance of the polymerization equipment. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the scraper part of this utility model; Figure 3 This utility model Figure 2 Enlarged view of point A; Figure 4 This is a three-dimensional structural diagram of the cleaning device of this utility model; Figure 5 This utility model Figure 4 Enlarged view of point A.

[0016] Legend: 1. Tank; 2. Motor; 3. Round rod; 4. Stirring plate; 5. Cleaning device; 51. Water pump; 52. Inlet pipe; 53. Connecting pipe; 54. Outlet pipe; 55. Bolt; 56. Fixing plate; 57. Scraper; 58. Anti-slip block; 59. Guide plate; 510. Positioning column; 511. Reinforcing plate; 512. Conical tube; 513. Support plate. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Figures 1 to 5 The illustrated continuous polyacrylonitrile polymerization equipment for carbon fiber includes a tank 1. A motor 2 is mounted on one side of the tank 1, and a circular rod 3 is mounted on the output end of the motor 2. Several stirring plates 4 are mounted on one side of the circular rod 3. A cleaning device 5 is mounted on one side of the tank 1. The cleaning device 5 cleans the inner wall of the tank 1 through a water outlet pipe 54 and a scraper 57. During the production of polyacrylonitrile for carbon fiber, the material is fed into the tank 1 of the reactor. The tank 1 is then heated to a suitable temperature, and the motor 2 drives the stirring plates 4 fixed on one side of the circular rod 3 to stir and mix the raw materials, allowing them to undergo a polymerization reaction. After the polymerization reaction is complete, the raw materials are transported to other equipment for impurity removal. Then, the cleaning device 5 is used to clean the inner wall of the tank 1. New raw materials are then fed into the reactor for continuous production.

[0020] Figures 1 to 5 The cleaning device 5 shown includes a water pump 51, an inlet pipe 52, a connecting pipe 53, several outlet pipes 54, bolts 55, a fixing plate 56, and a scraper 57. The water pump 51 is located at the upper end of the tank 1. The inlet pipe 52 is located on one side of the water pump 51. The connecting pipe 53 is located on one side of the water pump 51. Several outlet pipes 54 are inclinedly located on one side of the outlet pipes 54, and the outlet is close to the inner wall of the tank 1. The bolts 55 are inserted into one side of the fixing plate 56 and are threadedly connected to the scraper 57. The scraper 57 is located on one side of the fixing plate 56 and its size is adapted to the size of the tank 1.

[0021] Figures 1 to 5As shown, when using the cleaning device 5, the fixed plate 56 is moved so that it is separated from the scraper 57, and the scraper 57 fixed on one side of the fixed plate 56 contacts the inner wall of the tank 1. Then, the bolt 55 is rotated so that the bolt 55 passes through the fixed plate 56 and the scraper 57 for threaded fixation. Then, the water pump 51 fixed at the upper end of the tank 1 is started, so that the water inlet pipe 52 on one side of the water pump 51, connected to the water source, is sent into the connecting pipe 53 fixed on one side of the water pump 51. Then, the water comes into contact with the inner wall of the tank 1 through several outlet pipes 54 fixed on one side of the connecting pipe 53. Then, start motor 2 to rotate scraper 57 fixed on one side of round rod 3. Scraper 57 then drives cleaning plate to move on the inner wall of tank 1. Water and scraper 57 are used to clean the inner wall of tank 1 to avoid residual raw materials after polymerization reaction. By using cleaning device 5, the raw materials adhering to the inner wall of tank 1 can be cleaned to prevent some raw materials from the previous reaction from remaining on the inner wall of tank 1. This would cause the new raw materials to mix with the residual raw materials, causing changes in the ratio. Changes in the ratio would affect the effect of the new round of polymerization reaction, thereby improving the use effect of polymerization equipment.

[0022] Figures 1 to 5 The fixed plate 56 shown has several anti-slip blocks 58 on both sides to increase its friction. These anti-slip blocks 58, fixed to both sides of the fixed plate 56, increase friction, making it easier for the operator to move the fixed plate 56. Guide plates 59 are inclinedly arranged on both sides of the fixed plate 56, raising the size of the inlet of the fixed plate 56. The inclined arrangement of the guide plates 59 on both sides of the fixed plate 56 further increases the size of the inlet, making it easier for the operator to bring the fixed plate 56 into contact with the mixing plate 4.

[0023] Figures 1 to 5 A positioning post 510 is provided on one side of the stirring plate 4, which penetrates the fixing plate 56 to position the fixing plate 56. When the fixing plate 56 contacts the scraper 57, the positioning post 510 penetrates the fixing plate 56, thus positioning the fixing plate 56 on the side of the scraper 57, making it easier for the operator to fix the fixing plate 56 with bolts 55 later. A reinforcing plate 511 is provided on one side of the fixing plate 56, which is connected to the scraper 57 to improve the connection strength between the scraper 57 and the fixing plate 56. By connecting the reinforcing plate 511 to the fixing plate 56 and the scraper 57, the connection strength between the fixing plate 56 and the scraper 57 is improved, thus preventing deformation at the connection point and affecting the use of the scraper 57.

[0024] Figures 1 to 5The water outlet pipe 54 shown has a tapered pipe 512 on the side away from the connecting pipe 53, with the tapered pipe 512 having a smaller size on the side away from the connecting pipe 53. The smaller size of the tapered pipe 512 on the side away from the water outlet pipe 54 increases the water pressure at the outlet of the connecting pipe 53, allowing the connecting pipe 53 to spray water more effectively to clean the inner wall of the tank 1. Several support plates 513 are provided on the inner wall of the tank 1, with one side of each support plate 513 fixed to the connecting pipe 53. The support plates 513, fixed to the tank 1 and the connecting pipe 53, provide positional support for the connecting pipe 53, ensuring its stable operation.

[0025] Working Principle: In the production of polyacrylonitrile for carbon fiber, the material is fed into the tank 1 of the reactor. The tank 1 is then heated to a suitable temperature, and the motor 2 drives a circular rod 3 with a fixed stirring plate 4 on one side to stir and mix the raw materials, allowing them to polymerize. After the polymerization reaction is complete, the raw materials are transported to other equipment for impurity removal. Then, a cleaning device 5 is used to clean the inner wall of the tank 1. New raw materials are then fed into the reactor for continuous production. When using the cleaning device 5, the fixed plate 56 is moved so that it is separated from the scraper 57, and the scraper 57 fixed on one side of the fixed plate 56 contacts the inner wall of the tank 1. Then, the bolt 55 is rotated to thread through the fixed plate 56 and scraper 57. The water pump 51 fixed at the top of the tank 1 is then started, allowing water from the water source connected to the inlet pipe 52 on one side of the pump 51 to be fed into the connecting pipe 53 fixed on one side of the pump 51. The water then flows through several outlet pipes 54 fixed on one side of the connecting pipe 53 to contact the inner wall of the tank 1. Start motor 2 to rotate scraper 57 fixed on one side of round rod 3. Scraper 57 then drives cleaning plate to move on inner wall of tank 1. Water and scraper 57 are used to clean inner wall of tank 1 to avoid residual raw materials after polymerization reaction. By using cleaning device 5, the raw materials adhering to inner wall of tank 1 can be cleaned to prevent residual raw materials from the previous reaction from mixing with the new raw materials and causing changes in the ratio. Changes in the ratio will affect the effect of the new round of polymerization reaction, thereby improving the use effect of polymerization equipment.

[0026] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or equivalent variations based on the disclosed technical content and apply them to other fields. However, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, shall still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A continuous polyacrylonitrile polymerization apparatus for carbon fiber, comprising a tank (1), characterized in that: A motor (2) is provided on one side of the tank (1), and a round rod (3) is provided at the output end of the motor (2). Several stirring plates (4) are provided on one side of the round rod (3). A cleaning device (5) is provided on one side of the tank (1). The cleaning device (5) cleans the inner wall of the tank (1) through a water outlet pipe (54) and a scraper (57).

2. The continuous polyacrylonitrile polymerization equipment for carbon fiber according to claim 1, characterized in that: The cleaning device (5) includes a water pump (51), an inlet pipe (52), a connecting pipe (53), several outlet pipes (54), bolts (55), a fixing plate (56), and a scraper (57). The water pump (51) is located at the upper end of the tank (1). The inlet pipe (52) is located on one side of the water pump (51). The connecting pipe (53) is located on one side of the water pump (51). Several outlet pipes (54) are inclinedly located on one side of the outlet pipes (54), and the outlet is close to the inner wall of the tank (1). The bolts (55) are inserted into one side of the fixing plate (56) to be threadedly connected to the scraper (57). The scraper (57) is located on one side of the fixing plate (56) and its size is adapted to the size of the tank (1).

3. The continuous polyacrylonitrile polymerization equipment for carbon fiber according to claim 2, characterized in that: The fixing plate (56) has several anti-slip blocks (58) on both sides to increase the friction of the fixing plate (56).

4. The continuous polyacrylonitrile polymerization equipment for carbon fiber according to claim 3, characterized in that: The fixed plate (56) is inclined with guide plates (59) on both sides, and the guide plates (59) increase the size of the entrance of the fixed plate (56).

5. A continuous polyacrylonitrile polymerization apparatus for carbon fiber according to claim 4, characterized in that: The stirring plate (4) is provided with a positioning post (510) on one side. The positioning post (510) passes through the fixing plate (56) to position the fixing plate (56).

6. A continuous polyacrylonitrile polymerization apparatus for carbon fiber according to claim 5, characterized in that: A reinforcing plate (511) is provided on one side of the fixed plate (56), and one side of the reinforcing plate (511) is connected to the scraper (57) to improve the connection strength between the scraper (57) and the fixed plate (56).

7. A continuous polyacrylonitrile polymerization apparatus for carbon fiber according to claim 6, characterized in that: The outlet pipe (54) has a tapered pipe (512) on the side away from the connecting pipe (53), and the tapered pipe (512) is smaller on the side away from the connecting pipe (53).

8. A continuous polyacrylonitrile polymerization apparatus for carbon fiber according to claim 7, characterized in that: The inner wall of the tank (1) is provided with several support plates (513), and one side of each of the support plates (513) is fixed to the connecting pipe (53).

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