Drying equipment for carbon fiber felt production

Abstract

The utility model discloses drying equipment for carbon fiber felt production, and relates to the technical field of carbon fiber felt production. According to the drying equipment for carbon fiber felt production, a supporting grid plate is supported through supporting springs in a heating bin, a supporting rod is movably arranged at the position, above the supporting grid plate, in the heating bin in a sleeving mode, and an eccentric shaft is fixedly arranged outside the supporting rod in a sleeving mode; the volume of the carbon fiber felt is quickly expanded and recovered, the drying time can be effectively shortened, and the drying efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon fiber felt production, in particular to drying equipment for carbon fiber felt production. Background Art

[0002] Carbon fiber felt is a kind of felt made of carbon fiber. It has a broad spectrum of adsorption and large capacity. Its adsorption capacity for gasoline, aldehydes, phenols, alcohols, olefins and other organic vapors is several to dozens of times greater than that of activated carbon (GAC). It has good adsorption for inorganic gases. Carbon fiber felt, referred to as carbon felt, takes polyacrylonitrile-based carbon felt as an example. The area weight is 500g / m2 and 1000g / m2, the longitudinal and transverse strength (N / mm2) are 0.12, 0.16 and 0.10, 0.12 respectively, the elongation at break is 3%, 4% and 18%, 16% respectively, the resistivity (Ω· The carbon fibers have a diameter of 4-6 mm, a diameter of 3.5-5.5 mm, a diameter of 7-9 mm, a diameter of 6-8 mm, a thermal conductivity of 0.06 W / (m·K) (25°C), a specific surface area of ​​>1.5 m2 / g, an ash content of less than 0.3%, and a sulfur content of <0.03%. Activated carbon fiber (ACF) is a new type of high-efficiency adsorption material that surpasses activated carbon (GAC). It is a new generation of product with a highly developed microporous structure, large adsorption capacity, fast desorption rate, and good purification effect. It can be processed into felt, silk, and cloth of various specifications. The product has the characteristics of heat resistance, acid resistance, and alkali resistance.

[0003] After the carbon fiber felt is impregnated and dehydrated, before high-temperature curing, the internal moisture must be cleaned first to ensure that it is in a dry state for high-temperature curing. In order to dry quickly, mechanical equipment is usually used to dehydrate the object after it leaves the impregnation tank. Most dehydration methods use a pressing dehydration method, which will cause the carbon fiber felt to be flattened during the dehydration process. During the drying process, we found that the drying speed of the flattened felt is slower than that of the carbon fiber felt that has not been rolled, which affects the production speed. At the same time, the utilization rate of thermal energy is low during the thermal drying process. For this reason, we propose a drying equipment for carbon fiber felt production. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a drying device for producing carbon fiber felt, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a drying equipment for carbon fiber felt production, including a heating chamber, a support spring is fixedly installed at the bottom of the inner cavity of the heating chamber, a support grid plate is fixedly connected to the top of the support spring, an electric heating network is fixedly sleeved inside the heating chamber, a support rod is movable inside the heating chamber, an eccentric shaft is fixedly sleeved outside the support rod, and a drive motor is fixedly installed on the left side of the heating chamber.

[0006] Optionally, an upper ventilation sleeve is fixedly installed on the top of the heating chamber, a lower ventilation sleeve is fixedly installed on the bottom of the heating chamber, an air pump is fixedly installed on the right side of the heating chamber, a return pipe is fixedly connected between the input end of the air pump and the right side of the upper ventilation sleeve, and a one-way flow limiting valve is respectively installed at the input end of the return pipe and the top of the upper ventilation sleeve.

[0007] Optionally, ventilation ports are provided on the top and bottom surfaces of the heating bin, and inlet and outlet ports are provided on the front and rear sides of the heating bin.

[0008] Optionally, the electric heating network is located below the supporting grid plate, the supporting rod and the eccentric shaft are located above the supporting grid plate, and the supporting rod is located below the axis of the eccentric shaft.

[0009] Optionally, the inner movable sleeve of the upper ventilation sleeve close to the right side is provided with a water absorption plate, and the water absorption plate is located on the right side of the ventilation port.

[0010] Optionally, the output end of the air pump extends to the inner cavity of the lower ventilation sleeve, and the upper ventilation sleeve and the lower ventilation sleeve completely cover the ventilation port.

[0011] The utility model provides a drying device for producing carbon fiber felt, which has the following beneficial effects:

[0012] 1. The drying equipment for the production of carbon fiber felt supports a grid plate through a support spring inside a heating chamber, a support rod is movably mounted above the support grid plate inside the heating chamber, and an eccentric shaft is fixedly mounted outside the support rod, which can be struck during the drying process to quickly expand and recover the volume of the carbon fiber felt, thereby effectively reducing the drying time and improving the drying efficiency.

[0013] 2. The drying equipment for the production of carbon fiber felt is provided with an upper ventilation jacket and a lower ventilation jacket respectively on the upper and lower parts of the heating chamber. The air pump and the return pipe are used together with the upper ventilation jacket and the lower ventilation jacket to guide the hot air to return from top to bottom, thereby improving the energy utilization rate. At the same time, the water absorption plate can avoid the return of moisture. One-way limiting valves are respectively provided on the outside of the return pipe and on the top of the upper ventilation jacket, which can effectively reduce the escape of heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the heating chamber of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the reflux pipe of the utility model.

[0018] In the figure: 1. Heating chamber; 2. Support spring; 3. Support grid plate; 4. Electric heating network; 5. Support rod; 6. Eccentric shaft; 7. Driving motor; 8. Upper ventilation sleeve; 9. One-way flow limiting valve; 10. Water absorption plate; 11. Lower ventilation sleeve; 12. Air pump; 13. Return pipe. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figures 1 to 3 The utility model provides a technical solution: a drying device for the production of carbon fiber felt, including a heating chamber 1, the top and bottom of the heating chamber 1 are provided with ventilation ports, the front and rear sides of the heating chamber 1 are provided with inlet and outlet ports, the carbon fiber felt enters the heating chamber 1 from the rear and is sent out from the front, and is continuously dried in the inner cavity of the heating chamber 1, the ventilation ports provided on the upper and lower sides of the heating chamber 1 can use the airflow to take away the moisture inside the carbon fiber felt in the inner cavity of the heating chamber 1 to avoid the accumulation of moisture, a support spring 2 is fixedly installed at the bottom of the inner cavity of the heating chamber 1, a support grid plate 3 is fixedly connected to the top of the support spring 2, an electric heating network 4 is located below the support grid plate 3, a support rod 5 and an eccentric shaft 6 are located above the support grid plate 3, the support rod 5 is located below the axis of the eccentric shaft 6, and the support The cooperation of the support spring 2 and the support grid plate 3 can play a role in supporting and resetting, and can ensure that the carbon fiber felt is quickly reset during the striking process, thereby facilitating subsequent striking. By utilizing the cooperation of the support rod 5 and the eccentric shaft 6, striking during the drying process can quickly expand and restore the carbon fiber felt, thereby improving the drying efficiency. The internal fixed sleeve of the heating chamber 1 is provided with an electric heating network 4, the internal movable sleeve of the heating chamber 1 is provided with a support rod 5, the external fixed sleeve of the support rod 5 is provided with an eccentric shaft 6, and a drive motor 7 is fixedly installed on the left side of the heating chamber 1. The output shaft of the drive motor 7 is controlled to drive the support rod 5 to rotate, and the eccentric shaft 6 is driven to rotate around the support rod 5 during the rotation of the support rod 5, and the carbon fiber felt above the support spring 2 is struck during the rotation of the eccentric shaft 6.

[0021] See also Figure 4The utility model provides a technical solution: an upper ventilation sleeve 8 is fixedly installed on the top of the heating chamber 1, and an internal movable sleeve of the upper ventilation sleeve 8 close to the right side is provided with a water absorption plate 10, and the water absorption plate 10 is located on the right side of the ventilation port. The setting of the water absorption plate 10 plays a role in absorbing moisture during the reflux process of the gas. The high-temperature gas in the inner cavity of the heating chamber 1 is discharged upward from the inner cavity of the heating chamber 1, and then from the interior of the upper ventilation sleeve 8. The direct discharge of the gas will cause a waste of heat energy generated by part of the electric energy. A lower ventilation sleeve 11 is fixedly installed under the heating chamber 1, and the right side of the heating chamber 1 is fixed An air pump 12 is installed, and the output end of the air pump 12 extends to the inner cavity of the lower ventilation sleeve 11. The upper ventilation sleeve 8 and the lower ventilation sleeve 11 completely cover the ventilation port. The air is transported to the inner cavity of the lower ventilation sleeve 11 through the return pipe 13 by the air pump 12, and the discharged high-temperature gas can be reused. At this time, the power of the supporting grid plate 3 is reduced, the utilization rate of thermal energy is improved, and the energy consumption is reduced. The input end of the air pump 12 and the right side of the upper ventilation sleeve 8 are fixedly connected with the return pipe 13, and the input end of the return pipe 13 and the top of the upper ventilation sleeve 8 are respectively installed with a one-way flow limiting valve 9.

[0022] In summary, when the drying equipment for producing carbon fiber felt is used, the carbon fiber felt is first passed through the heating chamber 1 and continuously transported from the back to the front, and then the electric heating network 4 is powered to heat the inner cavity space of the heating chamber 1, thereby quickly drying the carbon fiber felt above the support spring 2, and then the output shaft of the driving motor 7 is controlled to drive the support rod 5 to rotate, and the eccentric shaft 6 is driven to rotate around the support rod 5 during the rotation of the support rod 5, and the carbon fiber felt above the support spring 2 is hit during the rotation of the eccentric shaft 6, so that the carbon fiber felt is dried on the outside and quickly expands. The expansion recovery and the enlargement of the outer felt holes can quickly discharge the internal moisture from the outside of the carbon fiber felt. During the beating process, the support spring 2 can reset the support grid plate 3 to prevent the carbon fiber felt from being continuously struck. At the same time, during the drying process, the moisture mixed in the high-temperature gas will be discharged to the inner cavity of the upper ventilation sleeve 8 through the top of the heating chamber 1, and then the air is transported to the inner cavity of the lower ventilation sleeve 11 through the return pipe 13 by the air pump 12, and the discharged high-temperature gas can be reused. At this time, the power of the support grid plate 3 is reduced, the utilization rate of thermal energy is improved, and the energy consumption is reduced.

[0023] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0024] 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 drying device for producing carbon fiber felt, comprising a heating chamber (1), characterized in that: A support spring (2) is fixedly mounted on the bottom of the inner cavity of the heating chamber (1); a support grid plate (3) is fixedly connected to the top of the support spring (2); an electric heating network (4) is fixedly mounted inside the heating chamber (1); a support rod (5) is movably mounted inside the heating chamber (1); an eccentric shaft (6) is fixedly mounted outside the support rod (5); and a drive motor (7) is fixedly mounted on the left side of the heating chamber (1).

2. A drying device for producing carbon fiber felt according to claim 1, characterized in that: An upper ventilation sleeve (8) is fixedly installed on the top of the heating chamber (1), a lower ventilation sleeve (11) is fixedly installed on the bottom of the heating chamber (1), an air pump (12) is fixedly installed on the right side of the heating chamber (1), a return pipe (13) is fixedly connected between the input end of the air pump (12) and the right side of the upper ventilation sleeve (8), and a one-way flow limiting valve (9) is respectively installed at the input end of the return pipe (13) and the top of the upper ventilation sleeve (8).

3. A drying device for producing carbon fiber felt according to claim 2, characterized in that: The top and bottom surfaces of the heating bin (1) are provided with ventilation openings, and the front and rear sides of the heating bin (1) are provided with material inlet and outlet openings.

4. A drying device for producing carbon fiber felt according to claim 1, characterized in that: The electric heating network (4) is located below the supporting grid plate (3), the supporting rod (5) and the eccentric shaft (6) are located above the supporting grid plate (3), and the supporting rod (5) is located below the axis of the eccentric shaft (6).

5. A drying device for producing carbon fiber felt according to claim 3, characterized in that: The inner movable sleeve of the upper ventilation sleeve (8) close to the right side is provided with a water absorption plate (10), and the water absorption plate (10) is located on the right side of the ventilation port.

6. A drying device for producing carbon fiber felt according to claim 2, characterized in that: The output end of the air pump (12) extends to the inner cavity of the lower ventilation sleeve (11), and the upper ventilation sleeve (8) and the lower ventilation sleeve (11) completely cover the ventilation port.

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