A shutter for carbon fiber oxidation furnace

Abstract

The utility model relates to the technical field of oxidation furnaces, and discloses a shutter for a carbon fiber oxidation furnace, including a mounting frame, the inner side of the mounting frame is inserted with a connecting shaft, the inner end of the connecting shaft is coaxially connected with a cylindrical convex strip, which is opened inside the blade, the inside of the assembly groove is inserted with an insertion rod, the bottom end of the insertion rod is connected with a seal; a spring is sleeved on the outer lower side of the insertion rod, the upper rear side of the seal is connected with a mounting frame, and a scraper is inserted inside the mounting frame. The shutter for the carbon fiber oxidation furnace, through the added seal and mounting frame, when the blade is tilted and opened, the seal loses the support of the lower cylindrical convex strip, so that it pops open under the push of the spring, so that the movement of the mounting frame can be driven, and the dust attached to the inner side of the blade can be scraped off, so as to avoid the dust from forming a heat insulation layer on the inner side of the blade, and improve the heat exchange efficiency of the oxidation furnace and the use quality of the shutter.

Description

Technical Field

[0001] The utility model relates to the technical field of oxidation furnaces, in particular to a shutter for a carbon fiber oxidation furnace. Background Art

[0002] The improved carbon fiber oxidation furnace is designed to improve the efficiency and quality of the carbon fiber production process while reducing energy consumption and maintenance costs. The shutter device of the oxidation furnace is a mechanical device used to control the airflow and temperature in the furnace. The shutters in the oxidation furnace are mainly used to adjust the airflow and temperature distribution in the furnace. They can control the amount of air entering the furnace and the flow path of this air in the furnace, thereby optimizing the combustion process, improving thermal efficiency, and reducing energy loss. In addition, the shutters can also be adjusted during ignition and temperature rise to maintain a stable combustion environment and prevent the flame from being extinguished or overheating. The design of the shutter device is crucial to ensuring thermal efficiency and material handling inside the oxidation furnace.

[0003] Common oxidation furnace shutters are composed of a series of adjustable blades, which can be opened or closed according to operational needs to adjust the amount and distribution of air entering the furnace. However, since one side of the multiple sets of blades of the shutters is arranged toward the furnace cavity, dust will adhere to the inner side of the shutter blades during use, thereby forming an insulating layer on the shutters, hindering heat transfer, resulting in a decrease in the heat exchange efficiency of the oxidation furnace, thereby affecting the use quality of the shutters and failing to meet the working requirements of the oxidation furnace shutters. For this reason, a shutter for a carbon fiber oxidation furnace is proposed. Utility Model Content

[0004] Technical issues solved

[0005] In view of the shortcomings of the prior art, the utility model provides a shutter for a carbon fiber oxidation furnace to solve the technical problem that since one side of the multiple groups of blades of the shutter are arranged toward the furnace cavity, dust will adhere to the inner side of the shutter blades during use, thereby forming an insulating layer on the shutter and hindering heat transfer.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a louver for a carbon fiber oxidation furnace, comprising:

[0008] A mounting frame, wherein a connecting shaft is inserted into the inner side of the mounting frame, the inner end of the connecting shaft is coaxially connected to a cylindrical convex strip, and the bottom of the cylindrical convex strip is connected to a blade;

[0009] An assembly groove is provided inside the blade, a limiting groove is provided on the top of the assembly groove, an insertion rod is inserted inside the assembly groove, and a sealing strip is connected to the bottom end of the insertion rod;

[0010] The spring is sleeved on the outer lower side of the insertion rod. The upper rear side of the seal is connected with a mounting frame, and a scraper is inserted inside the mounting frame.

[0011] Preferably, both left and right sides of the bottom end of the seal are rounded to facilitate the seal to be squeezed, and the upper and lower ends of the spring are respectively connected to the corresponding positions of the assembly groove and the seal.

[0012] Preferably, the top of the insertion rod passes through the interior of the limiting groove, and the top end of the insertion rod is coaxially connected to the limiting disk, thereby preventing the insertion rod from escaping from the interior of the assembly groove.

[0013] Preferably, the number of the scraping blades is 4-8 groups, the scraping blades are all inclined, and the interiors of the scraping blades are all hollowed out to prevent the scraped dust from accumulating on the surface of the scraping blade.

[0014] Preferably, the number of the connecting shaft, cylindrical ribs and blades is 6-12 groups, the inner end of the connecting shaft is coaxially mounted with a sprocket, the outer side of the sprocket is sleeved with a chain, and the left side of the upper sprocket is coaxially connected with a driving shaft, which can drive the rotation of the sprocket through the chain, thereby facilitating the synchronous tilting and opening and closing of multiple groups of blades.

[0015] Preferably, a tripod is installed on the upper left side of the mounting frame, and a stepper motor is installed on the top of the tripod, the rotor of the stepper motor is coaxially connected to the drive shaft, bearings are installed on the left sides of the middle and lower sprockets, and the left side of the bearing is connected to the corresponding position of the inner cavity of the mounting frame, and the upper sprocket can be driven to rotate by the stepper motor, which facilitates the precise control of the opening and closing angles of the blades.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a shutter for a carbon fiber oxidation furnace, which has the following beneficial effects:

[0018] The shutter for the carbon fiber oxidation furnace is provided with a sealing strip and a mounting frame, so that when the blades are tilted and opened, the sealing strip loses the support of the lower cylindrical convex strip and is pushed open by the spring, so that the movement of the mounting frame can be driven, and when the blades are closed, the sealing strip is squeezed by the lower cylindrical convex strip and retracts, thereby driving the mounting frame to reset, so that the mounting frame and the scraper can be driven to move up and down during the opening and closing of the blades of the shutter, so that dust attached to the inner side of the blade can be scraped off, and because there will be a certain vibration when the spring pushes the sealing strip to bounce open, the dust on the surface of the mounting frame and the scraper can be shaken off, so that dust is prevented from adhering to the inner side of the blade during the use of the shutter, and dust is prevented from forming a heat insulation layer on the inner side of the blade to hinder heat transfer, thereby improving the heat exchange efficiency of the oxidation furnace and the use quality of the shutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the mounting frame of the utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the blade of the utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the assembly slot and the limit slot of the utility model;

[0023] Figure 5 This is a schematic diagram of the installation frame and scraper structure of the utility model.

[0024] In the figure: 1. mounting frame; 2. tripod; 3. stepping motor; 4. driving shaft; 5. connecting shaft; 6. cylindrical convex strip; 7. blade; 8. assembly groove; 9. limiting groove; 10. insertion rod; 11. sealing strip; 12. spring; 13. limiting plate; 14. sprocket; 15. chain; 16. bearing; 17. mounting frame; 18. scraper. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides a technical solution, a shutter for a carbon fiber oxidation furnace, comprising a mounting frame 1, a tripod 2, a stepping motor 3, a driving shaft 4, a connecting shaft 5, a cylindrical convex strip 6, a blade 7, an assembly groove 8, a limiting groove 9, an insertion rod 10, a seal 11, a spring 12, a limiting plate 13, a sprocket 14, a chain 15, a bearing 16, a mounting frame 17 and a scraper 18:

[0027] See also Figure 1 and Figure 2 , a connecting shaft 5 is inserted into the inner side of the mounting frame 1, the inner end of the connecting shaft 5 is coaxially connected to a cylindrical convex strip 6, and the bottom of the cylindrical convex strip 6 is connected to a blade 7;

[0028] See also Figure 3 , the assembly groove 8 is opened inside the blade 7, and the top of the assembly groove 8 is opened with a limit groove 9, please refer to Figure 4 , an insertion rod 10 is inserted into the assembly groove 8, and a seal 11 is connected to the bottom end of the insertion rod 10;

[0029] The spring 12 is sleeved on the outer lower side of the plug rod 10, and the upper rear side of the seal 11 is connected to the mounting frame 17, see Figure 5 The installation frame 17 is internally inserted with a scraper 18, see Figure 4 The left and right sides of the bottom end of the seal 11 are both rounded, the upper and lower ends of the spring 12 are respectively connected to the corresponding positions of the assembly groove 8 and the seal 11, the top of the insertion rod 10 passes through the inside of the limit groove 9, and the top of the insertion rod 10 is coaxially connected to the limit plate 13. The number of scrapers 18 is 4-8 groups, and the scrapers 18 are all inclined. The interior of the scrapers 18 is hollowed out. Through the added seal 11 and the mounting frame 17, when the blade 7 is tilted and opened, the seal 11 loses the support of the lower cylindrical convex strip 6, so that it pops open under the push of the spring 12, so that the movement of the mounting frame 17 can be driven, and the seal is closed when the blade 7 is closed. The strip 11 will be squeezed by the lower cylindrical convex strip 6 and thus retract, thereby driving the mounting frame 17 to reset, so that the mounting frame 17 and the scraper 18 can be driven to move up and down once during the opening and closing of the blades 7 of the shutter, so that the dust attached to the inner side of the blade 7 can be scraped off, and because there will be a certain vibration when the spring 12 pushes the sealing strip 11 to bounce off, the dust on the surface of the mounting frame 17 and the scraper 18 can be shaken off, preventing the dust from adhering to the inner side of the blade 7 during the use of the shutter, avoiding the dust from forming a heat insulation layer on the inner side of the blade 7 to hinder heat transfer, thereby improving the heat exchange efficiency of the oxidation furnace and the use quality of the shutter;

[0030] See also Figure 1 and Figure 2 The number of connecting shafts 5, cylindrical convex strips 6 and blades 7 are all 6-12 groups. The inner end of the connecting shaft 5 is coaxially equipped with a sprocket 14, and the outer side of the sprocket 14 is sleeved with a chain 15. The left side of the upper sprocket 14 is coaxially connected with the driving shaft 4. A tripod 2 is installed on the upper left part of the mounting frame 1, and a stepping motor 3 is installed on the top of the tripod 2. The rotor of the stepping motor 3 is coaxially connected with the driving shaft 4. Bearings 16 are installed on the left sides of the middle and lower sprockets 14, and the left side of the bearing 16 is connected to the corresponding position of the inner cavity of the mounting frame 1. The upper sprocket 14 can be driven to rotate by the stepping motor 3, so that multiple groups of blades 7 can be driven to tilt and open and close synchronously, which is convenient for accurately controlling the opening and closing angles of the blades 7.

[0031] The present invention provides a sealing strip 11 and a mounting frame 17, so that when the blade 7 is tilted and opened, the sealing strip 11 loses the support of the lower cylindrical convex strip 6, so that it is pushed open by the spring 12, so that the mounting frame 17 can be driven to move. When the blade 7 is closed, the sealing strip 11 is squeezed by the lower cylindrical convex strip 6 and retracts, thereby driving the mounting frame 17 to reset, so that the mounting frame 17 and the scraper 18 can be driven to move up and down during the opening and closing of the blade 7 of the blind, so that the dust attached to the inner side of the blade 7 can be scraped off. In addition, because there will be a certain vibration when the spring 12 pushes the seal 11 to pop open, the dust on the surface of the mounting frame 17 and the scraper 18 can be shaken off, preventing dust from adhering to the inside of the blade 7 during the use of the shutter, and avoiding the formation of a heat insulation layer on the inside of the blade 7 to hinder heat transfer, thereby improving the heat exchange efficiency of the oxidation furnace and the quality of use of the shutter. At the same time, the upper sprocket 14 can be driven to rotate by the stepper motor 3, so that multiple groups of blades 7 can be driven to tilt and open and close synchronously, which is convenient for precise control of the opening and closing angles of the blades 7.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shutter for a carbon fiber oxidation furnace, characterized in that: include: A mounting frame (1), wherein a connecting shaft (5) is inserted into the inner side of the mounting frame (1), the inner end of the connecting shaft (5) is coaxially connected to a cylindrical convex strip (6), and the bottom of the cylindrical convex strip (6) is connected to a blade (7); An assembly groove (8) is provided inside the blade (7), a limiting groove (9) is provided at the top of the assembly groove (8), an insertion rod (10) is inserted inside the assembly groove (8), and a sealing strip (11) is connected to the bottom end of the insertion rod (10); The spring (12) is sleeved on the outer lower side of the insertion rod (10); the upper rear side of the seal strip (11) is connected to a mounting frame (17); and a scraper (18) is inserted into the interior of the mounting frame (17).

2. The louver for a carbon fiber oxidation furnace according to claim 1, characterized in that: The left and right sides of the bottom end of the seal (11) are both rounded, and the upper and lower ends of the spring (12) are respectively connected to the corresponding positions of the assembly groove (8) and the seal (11).

3. The shutter for a carbon fiber oxidation furnace according to claim 1, characterized in that: The top of the insertion rod (10) passes through the interior of the limiting groove (9), and the top end of the insertion rod (10) is coaxially connected to the limiting plate (13).

4. The shutter for a carbon fiber oxidation furnace according to claim 1, characterized in that: The number of the scrapers (18) is 4-8 groups, the scrapers (18) are all arranged obliquely, and the interiors of the scrapers (18) are all hollowed out.

5. The shutter for a carbon fiber oxidation furnace according to claim 1, characterized in that: The number of the connecting shaft (5), cylindrical convex strips (6) and blades (7) is 6-12 sets. The inner end of the connecting shaft (5) is coaxially mounted with a sprocket (14). The outer side of the sprocket (14) is sleeved with a chain (15). The left side of the upper sprocket (14) is coaxially connected to a drive shaft (4).

6. The shutter for a carbon fiber oxidation furnace according to claim 5, characterized in that: A tripod (2) is installed on the upper left side of the mounting frame (1), and a stepper motor (3) is installed on the top of the tripod (2), the rotor of the stepper motor (3) is coaxially connected to the drive shaft (4), and bearings (16) are installed on the left sides of the middle and lower sprocket wheels (14), and the left side of the bearing (16) is connected to the corresponding position of the inner cavity of the mounting frame (1).

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