CN217869240U

CN217869240U - Carbonizing furnace for processing PAN-based carbon fiber products

Info

Publication number: CN217869240U
Application number: CN202222075599.8U
Authority: CN
Inventors: 杨尚威; 阎文迪; 云皓天
Original assignee: Liaoning Junxing Carbon Fiber Materials Co ltd
Current assignee: Liaoning Junxing Carbon Fiber Materials Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2022-11-22
Anticipated expiration: 2032-08-09

Abstract

The utility model discloses a carbonization furnace is used in processing of PAN base carbon fiber goods, the induction cooker comprises a cooker bod, by interior heat preservation, flame retardant coating and heating element of being equipped with in proper order outside to in the furnace body, the flame retardant coating furnace body one side is equipped with the silk bundle import, and the opposite side is equipped with the silk bundle export, the furnace body top just is close to silk bundle export one side department and is equipped with the blast pipe, the blast pipe bottom inserts the inside and horizontal intercommunication of furnace body and is equipped with the auxiliary tube, the auxiliary tube inlays the dress in the flame retardant coating, the utility model relates to a carbon fiber processing technology field, this device compact structure through set up the blast pipe in the silk bundle exit to the auxiliary tube and a plurality of capillary that transversely lay are cooperated can make waste gas discharge more smoothly, avoid the interior long-pending waste gas of stove to remain to produce tar, the setting of traction assembly, and the interval between a pair of traction roller is adjusted to the silk bundle type and the quantity to the difference carries out adaptability and adjusts, and the use for people has brought the convenience.

Description

Carbonizing furnace for processing PAN-based carbon fiber products

Technical Field

The utility model relates to a carbon fiber preparation technical field specifically is a carbonizing furnace is used in PAN base carbon fiber goods processing.

Background

Carbon fiber is a new material with excellent mechanical properties, not only has the inherent characteristics of carbon material, but also has the softness and the processability of textile materials, is a new generation of reinforced fiber, and at present, polyacrylonitrile (PAN) fiber is mainly used as a precursor in the industry to produce the carbon fiber.

In the production process of carbon fibers, the carbon fibers need to be conveyed into a carbonization furnace for carbonization, and in Chinese patent with publication number CN2291419, a high-temperature carbonization furnace for producing carbon fibers is disclosed, which consists of a drawing roller, a sealing nozzle, an outer shell, an inner graphite shell, a heat-insulating layer, a temperature measurement observation hole and a heating element, and is characterized in that a water jacket is arranged between the outer shell and the heat-insulating layer, and the outer shell is provided with a water inlet and a water outlet.

The device can carry out carbonization work, but at the carbonization in-process, because its gas vent setting can influence the emission of waste gas at the middle part of furnace body outer wall, when waste gas can not lead to in the same direction as the emission in the stove, very easily form tar whereabouts in the furnace body to influence going on of carbonization process, it is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a carbonization furnace is used in PAN base carbon fiber goods processing has solved the unsmooth problem of current carbonization furnace exhaust emission.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a PAN base carbon fiber is carbide furnace for goods processing, includes the furnace body, by interior heat preservation, flame retardant coating and heating element of being equipped with in proper order outside to in the furnace body, the flame retardant coating furnace body one side is equipped with the silk bundle import, and the opposite side is equipped with the silk bundle export, the furnace body top just is close to silk bundle export one side department and is equipped with the blast pipe, the blast pipe bottom inserts the inside and horizontal intercommunication of furnace body and is equipped with the auxiliary tube, the auxiliary tube inlay the dress in the flame retardant coating, the auxiliary tube lower wall is connected with a plurality of capillaries along length direction, the furnace body outer wall just is located silk bundle import and silk bundle export both sides department and is equipped with a pair of subassembly that pulls.

Preferably, the traction assembly comprises a pair of support plates arranged on the outer wall of the furnace body, a door-shaped frame is arranged on the upper wall of each support plate, a screw rod is screwed on the upper wall of the door-shaped frame, a roller support is installed at the lower end of the screw rod, a telescopic rod is installed between the upper wall of the roller support and the door-shaped frame, a traction roller is arranged at the bottom of the roller support, and an opening for the roller support to pass through is formed in each support plate.

Preferably, sealing devices are arranged in the tow inlet and the tow outlet.

Preferably, the exhaust pipe is wound with a heat exchange pipe, one end of the heat exchange pipe is a water inlet end, and the other end of the heat exchange pipe is a water outlet end.

Preferably, an air inlet pipe is arranged on one side of the furnace body close to the tow inlet.

Advantageous effects

The utility model discloses a carbonizing furnace is used in processing of PAN base carbon fiber goods possesses following beneficial effect: this device compact structure through set up the blast pipe in the silk bundle exit to the cooperation is transversely laid auxiliary tube and a plurality of capillary, can make waste gas discharge more smoothly, avoids the stove long-pending waste gas that stays to produce tar, and traction assembly's setting, the interval between a pair of carry over pinch rolls is adjusted to the accessible screw rod, thereby carries out the adaptability to different silk bundle types and quantity and adjusts, and the use of giving people has brought conveniently.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a furnace body; 2. a heat-insulating layer; 3. a refractory layer; 4. a heating element; 5. a tow inlet; 6. a tow outlet; 7. an exhaust pipe; 8. an auxiliary tube; 9. a capillary tube; 10. a support plate; 11. a gantry frame; 12. a screw; 13. a roller support; 14. a telescopic rod; 15. a traction roller; 16. an opening; 17. a sealing device; 18. a heat exchange tube; 19. an air inlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a carbonization furnace for processing PAN-based carbon fiber products comprises a furnace body 1, wherein a heat preservation layer 2, a fire-resistant layer 3 and a heating element 4 are sequentially arranged in the furnace body 1 from inside to outside, one side of the furnace body 1 provided with a tow inlet 5 and the other side provided with a tow outlet 6, an exhaust pipe 7 is arranged at the top of the furnace body 1 and close to one side of the tow outlet 6, the bottom of the exhaust pipe 7 is inserted into the furnace body 1 and is transversely communicated with an auxiliary pipe 8, the auxiliary pipe 8 is embedded in the fire-resistant layer 3, the lower wall of the auxiliary pipe 8 is connected with a plurality of capillary tubes 9 along the length direction, and a pair of traction components are arranged on the outer wall of the furnace body 1 and positioned at two sides of the tow inlet 5 and the tow outlet 6; the traction assembly comprises a pair of support plates 10 arranged on the outer wall of the furnace body 1, a door-shaped frame 11 is arranged on the upper wall of each support plate 10, a screw rod 12 is screwed on the upper wall of each door-shaped frame 11, a roller support 13 is arranged at the lower end of each screw rod 12, an expansion rod 14 is arranged between the upper wall of each roller support 13 and each door-shaped frame 11, a traction roller 15 is arranged at the bottom of each roller support 13, and an opening 16 for the roller support 13 to pass through is formed in each support plate 10; sealing devices 17 are arranged in the tow inlet 5 and the tow outlet 6; a heat exchange tube 18 is wound on the exhaust tube 7, one end of the heat exchange tube 18 is a water inlet end, and the other end of the heat exchange tube 18 is a water outlet end; and an air inlet pipe 19 is arranged on one side of the furnace body 1 close to the tow inlet 5.

The following working principles, detailed connecting means thereof, and following main descriptions of the working principles and processes shall be referred to by those skilled in the art to connect the components in this case in sequence, and specific connecting and operating sequences thereof.

Example (b): when the device is used, the distance between tow inlet and tow outlet two-side traction rollers is adjusted according to the type and the quantity of tows, the specific adjusting method is to rotate the screw rod, the screw rod drives the roller support to move up and down, and further the distance between the two-side traction rollers is adjusted, the tow enters the furnace body from the tow inlet under the action of the traction rollers and is led out through the tow outlet, high-temperature carbonization is performed by heating the inside of the furnace body at a far distance, nitrogen can be used as inert gas in the air inlet pipe, part of waste gas generated by carbonization can enter the auxiliary pipe through a plurality of capillary tubes when moving towards the direction of the exhaust pipe, and is finally collected in the exhaust pipe, most of the residual waste gas directly enters the exhaust pipe to form collection and finally enters the waste gas treatment system, the heat exchange pipe is arranged around the pile outside the exhaust pipe, the heat of the waste gas can be absorbed, and the waste heat can be recycled, and the device is convenient to use.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a PAN base carbon fiber is carbide furnace for goods processing, includes furnace body (1), by interior heat preservation (2), flame retardant coating (3) and heating element (4) of being equipped with outward in proper order in furnace body (1), flame retardant coating (3) furnace body (1) one side is equipped with tow import (5), and the opposite side is equipped with tow export (6), its characterized in that, furnace body (1) top just is close to tow export (6) one side department and is equipped with blast pipe (7), blast pipe (7) bottom is inserted furnace body (1) inside and transversely communicates and is equipped with auxiliary tube (8), auxiliary tube (8) inlay and adorn in flame retardant coating (3), auxiliary tube (8) lower wall is connected with a plurality of capillary (9) along length direction, furnace body (1) outer wall just is located tow import (5) and tow export (6) both sides department and is equipped with a pair of pulling subassembly.

2. The carbonization furnace for processing the PAN-based carbon fiber product according to claim 1, wherein the traction assembly comprises a pair of support plates (10) arranged on the outer wall of the furnace body (1), a gantry (11) is arranged on the upper wall of each support plate (10), a screw (12) is screwed on the upper wall of each gantry (11), a roller support (13) is arranged at the lower end of each screw (12), an expansion rod (14) is arranged between the upper wall of each roller support (13) and each gantry (11), a traction roller (15) is arranged at the bottom of each roller support (13), and an opening (16) for the roller support (13) to pass through is formed in each support plate (10).

3. Carbonization furnace for processing of PAN-based carbon fiber products according to claim 2, characterized in that sealing means (17) are provided in both the tow inlet (5) and the tow outlet (6).

4. The carbonization furnace for processing the PAN-based carbon fiber product as claimed in claim 3, wherein the exhaust pipe (7) is wound with a heat exchange pipe (18), and one end of the heat exchange pipe (18) is a water inlet end, and the other end of the heat exchange pipe is a water outlet end.

5. The carbonization furnace for processing the PAN-based carbon fiber product according to claim 2, wherein an air inlet pipe (19) is arranged on one side of the furnace body (1) close to the tow inlet (5).