CN217560337U

CN217560337U - Tunnel type carbide furnace and graphite felt production system with same

Info

Publication number: CN217560337U
Application number: CN202221328402.0U
Authority: CN
Inventors: 程继发; 瞿海斌; 宋晓峰; 王建业; 周嘉豪
Original assignee: Hunan Shuoke Thermal Intelligent Equipment Co ltd
Current assignee: Hunan Shuoke Thermal Intelligent Equipment Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-10-11
Anticipated expiration: 2032-05-30

Abstract

The utility model discloses a tunnel type carbide furnace, include: the device comprises a carbonization furnace body, wherein a tunnel type hearth is arranged inside the carbonization furnace body, and a conveying assembly, a heating assembly, a heat insulation layer and carbon cloth are arranged inside the hearth; the heating components are arranged on the upper side and the lower side of the conveying component and used for heating the carbon felt in the hearth; the conveying assembly is used for assisting the carbon felt to be conveyed in the hearth; the heat preservation layers are arranged at the top and the bottom of the hearth and used for realizing heat preservation inside the hearth; the carbon cloth sets up on furnace upper portion, and is located between transfer assembly and the heating element for prevent on the impurity drips the carbon felt. The utility model also discloses a graphite felt production system who contains above-mentioned tunnel type carbide furnace. The utility model has the advantages of compact structure, production efficiency are high, heat utilization rate is high and degree of automation is high, have realized that the carbon felt is at the inside limit conveying limit heating of furnace, have improved the homogeneity of being heated of carbon felt, have strengthened the carbonization effect, have effectively ensured the quality stability of product.

Description

Tunnel type carbide furnace and graphite felt production system with same

Technical Field

The utility model belongs to the technical field of graphite felt manufacture equipment, concretely relates to tunnel type carbide furnace and have its graphite felt production system.

Background

The graphite felt is obtained by high-temperature treatment of carbon felt at the temperature of more than 2000 ℃ in vacuum or inert atmosphere, has higher carbon content than the carbon felt, reaches more than 99 percent, has good heat preservation, heat insulation and electric conductivity, and is widely applied in the industrial field. When the graphite felt is produced, a corresponding carbon felt raw material is usually processed, and the carbon felt is usually prepared from raw material fibers through production processes of needling, pre-oxidizing, carbonizing and the like, wherein the processing effect of the carbonization process has a great influence on the quality of a product carbon felt.

The carbonization process involves a cracking or pyrolysis reaction, and the carbonization process is generally carried out in a carbonization furnace in which the raw fibers are put to a high temperature carbonization process. Raw material fibers can generate a large amount of tar, ash and the like through a series of physical and chemical reactions in the constant temperature carbonization process, and the existing carbonization furnace is a closed space and cannot discharge the tar and the ash out of the furnace in time, so that the product quality and the service life of equipment are seriously influenced. Meanwhile, the existing carbonization furnace needs to repeat the procedures of loading, unloading and the like when producing one furnace of products, and tar and ash powder generated in the carbonization process need to be manually cleaned when opening the furnace, so that a large amount of time and manpower are consumed, the labor intensity is high, and the automatic production cannot be realized. In addition, the existing mode of putting raw material fibers into a carbonization furnace is a standing mode, and the problem that the carbonization effect is influenced due to uneven heating of partial positions exists.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art not enough, provide a compact structure, production efficiency is high, heat utilization rate is high and realize automatic clear tunnel type carbide furnace and have its graphite felt production system.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a tunnel carbide furnace comprising: the device comprises a carbonization furnace body, wherein a tunnel type hearth is arranged inside the carbonization furnace body, and a conveying assembly, a heating assembly, a heat preservation layer and carbon cloth are arranged inside the hearth; the heating components are arranged on the upper side and the lower side of the conveying component and used for heating the carbon felt in the hearth; the conveying assembly is used for assisting the carbon felt to be conveyed in the hearth; the heat-insulating layers are arranged at the top and the bottom of the hearth and used for realizing heat insulation in the hearth; the carbon cloth is arranged on the upper portion of the hearth and located between the conveying assembly and the heating assembly, and is used for preventing impurities from dropping on the carbon felt.

As a further improvement, the carbonization furnace further comprises a pipeline assembly, the top and the bottom of the carbonization furnace body are respectively connected with the pipeline assembly, and the pipeline assembly is used for discharging impurities generated in the furnace hearth.

As a further improvement of the utility model, the pipe assembly includes first pipeline, second pipeline and third pipeline, the bottom of second pipeline and the furnace top intercommunication of carbide furnace body, the top and the first pipeline intercommunication of second pipeline, first pipeline and third pipeline intercommunication, third pipeline and fan intercommunication utilize the air current that the fan produced, take the impurity that produces in the furnace out.

As a further improvement of the utility model, a control valve is arranged between the first pipeline and the second pipeline and used for adjusting the air flow in the hearth.

As a further improvement, the pipe assembly further comprises a fourth pipe, a fifth pipe and an eighth pipe, the fifth pipe is used for communicating the fourth pipe arranged on both sides of the carbonization furnace body, the fourth pipe is communicated with the eighth pipe, the top of the eighth pipe is communicated with the bottom of the furnace, and tar generated inside the furnace is discharged from the eighth pipe after passing through the fourth pipe.

As a further improvement, the fourth pipeline outside and the eighth pipeline outside are both provided with the electric heating assembly and keep warm for preventing tar in the pipeline from meeting the condensation solid.

As a further improvement of the utility model, the conveying component adopts a stick made of silicon carbide; the heating component adopts a silicon carbide rod.

As a further improvement, the inside disconnected excellent detector that still is equipped with of furnace, disconnected excellent detector is used for detecting the running state of rod stick.

As a further improvement of the utility model, the heat-insulating layer is made of any one of ceramic fiber, heat-insulating brick, carbon felt, graphite foil or carbon-carbon composite material.

As a general technical idea, the utility model also provides a graphite felt production system, including graphitizing furnace and foretell tunnel type carbide furnace.

Compared with the prior art, the utility model has the advantages of:

1. the tunnel type carbonization furnace of the utility model adopts the tunnel type hearth structure, so that the carbon felt can conveniently enter and exit the carbonization furnace; the heating assembly, the conveying assembly and the heat-insulating layer are arranged in the hearth, the heat-insulating layers arranged at the bottom and the top of the hearth are utilized to ensure that the interior of the hearth is kept in a better reaction temperature range, and meanwhile, the heating assembly is arranged at the upper side and the lower side of the conveying assembly, so that the carbon felt is heated while being conveyed in the hearth, the dynamic conveying of the carbon felt is realized, the uniform heating of the carbon felt is ensured, the carbonization effect of the carbon felt is obviously improved, and the product quality of the finally obtained graphite felt is effectively ensured; furthermore, the carbon cloth is arranged in the hearth, so that tar is prevented from dropping on the carbon felt, and the quality of the felt body is ensured.

2. The utility model discloses a tunnel type carbide furnace, through being connected furnace top and bottom and pipeline subassembly, make the interior gas that produces of furnace, the dust is along with the air current gets rid of the stove from the top pipeline outside, the tar of production then collects the bottom pipeline from the oven by gravity, and adopt the electrical heating in the outside of bottom pipeline, set up the heat preservation cladding, it is solid to prevent that tar from meeting the condensation, the staff can regularly clear up in the pipeline, both reduce human labor intensity, the inside clear carbonization environment that keeps of furnace has been ensured again, the life of carbide furnace has also been prolonged when having improved product quality.

3. The utility model discloses a graphite felt production system through having set up foretell tunnel type carbide furnace, therefore has same technological effect, has improved the production efficiency of graphite felt, simultaneously also greatly reduced the energy consumption.

Drawings

Fig. 1 is the schematic view of the three-dimensional structure of the tunnel carbonization furnace of the present invention.

Fig. 2 is the structural principle schematic diagram of the tunnel type carbonization furnace according to the main view.

Fig. 3 isbase:Sub>A schematic cross-sectional structural view alongbase:Sub>A-base:Sub>A direction in fig. 2.

Fig. 4 is the side view structure principle schematic diagram of the tunnel type carbonization furnace of the utility model.

Fig. 5 is the schematic view of the principle of the connection structure of the tunnel carbonization furnace and the pipe assembly.

Fig. 6 is the rear view connection structure principle schematic diagram of the tunnel type carbonization furnace and the pipeline assembly of the utility model.

Fig. 7 is a schematic cross-sectional structural view along the direction B-B in fig. 5.

Fig. 8 is a schematic cross-sectional structural view in the direction of C-C in fig. 5.

Fig. 9 is a schematic diagram of the cross-sectional structure along the direction D-D in fig. 5.

Fig. 10 is a schematic view of the cross-sectional structure of the rubber discharge section in the tunnel carbonization furnace of the present invention.

Illustration of the drawings: 1. a tunnel type carbonization furnace; 11. a carbonization furnace body; 12. a transfer assembly; 13. a heating assembly; 14. a support chassis; 15. a heat-insulating layer; 16. carbon cloth; 17. a first support assembly; 18. a second support member; 19. an oil discharge pipe; 2. a carbon felt; 3. a conduit assembly; 31. a first pipe; 32. a second conduit; 33. a third pipeline; 34. a fourth pipe; 35. a fifth pipeline; 36. a sixth pipeline; 37. a seventh pipe; 38. an eighth conduit; 39. a control valve; 310. a fan.

Detailed Description

The invention is further described in the following description with reference to the drawings and the specific preferred embodiments, but the scope of protection of the invention is not limited thereby.

Examples

As shown in fig. 1 to 10, the tunnel type carbonization furnace of the present invention comprises:

carbide furnace body

11, 11 inside tunnel type's that are equipped with both ends open-ended hearths of carbide furnace body, the inside conveying assembly 12, heating element 13, heat preservation 15 and the carbon cloth 16 that are equipped with of furnace. The heating components 13 are arranged at the upper side and the lower side of the conveying component 12, and the heating components 13 are used for heating the carbon felt 2 in the hearth; the conveying assembly 12 is used for assisting the carbon felt 2 to convey in the hearth; the heat preservation layers 15 are arranged at the top and the bottom of the hearth and used for realizing heat preservation inside the hearth; the carbon cloth 16 is arranged on the upper part of the hearth and positioned between the conveying assembly 12 and the heating assembly 13, and is used for preventing tar impurities from dropping on the carbon felt 2 so as to improve the cleanliness of the carbon felt 2.

In the embodiment, the tunnel type hearth structure is adopted, so that the carbon felt 2 can conveniently enter and exit the carbonization furnace; the conveying assembly 12, the heating assembly 13 and the heat-insulating layer 15 are arranged in the hearth, the heat-insulating layers 15 arranged at the bottom and the top of the hearth are utilized to ensure that the interior of the hearth is kept in a better reaction temperature range, and meanwhile, the heating assembly 13 is arranged on the upper side and the lower side of the conveying assembly 12, so that the carbon felt 2 is heated while conveyed in the hearth, the dynamic conveying of the carbon felt 2 is realized, the carbon felt 2 is ensured to be uniformly heated, the carbonization effect of the carbon felt 2 is obviously improved, and the product quality of the finally obtained graphite felt is effectively ensured; furthermore, the carbon cloth 16 is arranged in the hearth, so that tar is prevented from dropping on the carbon felt 2, and the quality of the felt body is ensured.

As shown in fig. 5 to 9, in the present embodiment, the furnace further includes a duct assembly 3, the top and the bottom of the carbonization furnace body 11 are respectively connected to the duct assembly 3, and the duct assembly 3 is used for discharging impurities generated in the furnace. It will be appreciated that in order to increase the service life of the pipe assembly 3, it may be made of a high temperature resistant, corrosion resistant material.

As shown in fig. 5 and 6, in the present embodiment, the duct assembly 3 includes a first duct 31, a second duct 32, and a third duct 33, the second duct 32 and the third duct 33 are disposed in the vertical direction, and the first duct 31 is disposed in the horizontal direction. 11 both sides of carbide furnace body all are equipped with second pipeline 32, the bottom of second pipeline 32 and the furnace top of carbide furnace body 11 intercommunication, the top and the first pipeline 31 intercommunication of second pipeline 32, first pipeline 31 and third pipeline 33 intercommunication, third pipeline 33 is through sixth pipeline 36 and seventh pipeline 37 intercommunication, seventh pipeline 37 and fan 310 intercommunication, and the contained angle between third pipeline 33 and the sixth pipeline 36 is 60, seventh pipeline 37 sets up along vertical direction. The airflow generated by the fan 310 is utilized to form a micro negative pressure inside the hearth, so that the gas and ash impurities generated in the hearth are pumped out. Further, a control valve 39 is arranged at the connection position of the first pipeline 31 and the second pipeline 32, a control valve 39 is arranged at the bottom of the seventh pipeline 37, and the control valve 39 is used for adjusting the gas flow in the hearth, so as to adjust the discharge rate of impurities such as gas, dust and the like in the hearth. It will be appreciated that the control valve 39 may specifically take the form of a gate valve.

In this embodiment, the duct assembly 3 further includes a fourth duct 34, a fifth duct 35 and an eighth duct 38 disposed at the lower portion of the furnace, the fifth duct 35 is used for communicating the fourth duct 34 disposed at two sides of the carbonization furnace body 11, the fourth duct 34 is communicated with the eighth duct 38, the top of the eighth duct 38 is communicated with the bottom of the furnace, and tar generated inside the furnace is discharged from the eighth duct 38 through the fourth duct 34. The seventh pipe 37 communicates with the fourth pipe 34, and is finally connected to the fan 310. Further, the outer sides of the fourth pipeline 34 and the eighth pipeline 38 are both provided with electric heating components for heat preservation, so as to prevent tar in the pipelines from being solidified when meeting condensation.

As shown in fig. 10, tar generated inside the furnace is volatilized at a high temperature and collected in the second ducts 32 on both sides of the top of the furnace, and the tar is condensed into liquid in the second ducts 32, and collected in the eighth duct 38 on the bottom of the furnace through the oil drain ducts 19 on both sides of the furnace, and finally discharged outside the furnace, and the fourth duct 34 and the eighth duct 38 are periodically cleaned manually.

In this embodiment, the conveying assembly 12 is a rod made of silicon carbide; the heating assembly 13 uses a silicon carbide rod. The silicon carbide rod is installed inside the furnace of carbide furnace body 11 through first supporting component 17 to heat from top to bottom, the rod is silicon carbide material, is connected with second support piece 18 on the carbide furnace body 11. During production, the carbon felt 2 slides from the rod, and the silicon carbide rod heats the carbon felt 2 in the hearth in an up-and-down heating mode. It will be appreciated that the second support 18 may specifically be a ceramic support wheel. Furthermore, a rod breaking detector (not shown in the figure) is arranged inside the hearth and used for detecting the running state of the rod in real time, so that the phenomenon that the carbon felt is scratched due to the breakage of the rod is avoided, and the carbonization quality of the carbon felt is ensured.

In this embodiment, the insulating layer 15 may take the form of a ceramic fiber plate. It is understood that in other embodiments, the insulation layer 15 may be made of any one of insulating brick, carbon felt, graphite foil, or carbon-carbon composite. By adopting the light material to prepare the heat-insulating layer 15, the furnace has the advantages of high temperature rise and fall speed, obvious heat-insulating effect, convenience in furnace building and the like.

As shown in fig. 1 to 3, in the present embodiment, a support chassis 14 is further included, and the support chassis 14 is disposed at the bottom of the carbonization furnace body 11 and is used for supporting the carbonization furnace body 11. Further, the bottom of the supporting base frame 14 is provided with an adjusting component, the adjusting component is used for leveling the carbonization furnace body 11 in the horizontal direction, the phenomenon that the carbonization furnace body 11 inclines is avoided, and the running reliability of the carbonization furnace is ensured. It will be appreciated that the support chassis 14 may be fabricated from a stainless steel material for improved load carrying capability.

The embodiment also provides a graphite felt production system, which comprises the graphitization furnace and the tunnel carbonization furnace 1. Through having set up foretell tunnel type carbide furnace 1, therefore have same technological effect, improved the production efficiency of graphite felt, simultaneously also greatly reduced the energy consumption. It can be understood that, in addition to the carbonization furnace and the graphitization furnace, the graphite felt production system of the embodiment may further include a feeding and discharging device to realize automatic feeding and discharging of the carbon felt into and out of the carbonization furnace and the graphitization furnace, so as to improve the degree of automation and save the production time; a cooling device can be arranged behind the graphitizing furnace to realize that the graphite felt product is cooled to a preset temperature and then discharged; an electric control system can be further arranged, PID automatic temperature control and ultra-high temperature alarm are carried out on the graphite felt production system, soft start protection is arranged on the heating system, and the like, so that automatic mass production of the whole production is realized.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the invention. Those skilled in the art can make numerous changes and modifications to the disclosed embodiments, or modify equivalent embodiments, without departing from the spirit and scope of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still belong to the protection scope of the technical solution of the present invention.

Claims

1. A tunnel carbide furnace, comprising: the carbonization furnace comprises a carbonization furnace body (11), wherein a tunnel type hearth is arranged inside the carbonization furnace body (11), and a conveying assembly (12), a heating assembly (13), a heat preservation layer (15) and carbon cloth (16) are arranged inside the hearth; the heating assemblies (13) are arranged on the upper side and the lower side of the conveying assembly (12), and the heating assemblies (13) are used for heating the carbon felt (2) in the hearth; the conveying assembly (12) is used for assisting the carbon felt (2) to convey in the hearth; the heat-insulating layers (15) are arranged at the top and the bottom of the hearth and used for realizing heat insulation in the hearth; the carbon cloth (16) is arranged on the upper part of the hearth and positioned between the conveying assembly (12) and the heating assembly (13) and used for preventing impurities from dropping on the carbon felt (2).

2. The tunnel carbide furnace according to claim 1, further comprising a pipe assembly (3), wherein the top and bottom of the carbide furnace body (11) are connected to the pipe assembly (3), respectively, and the pipe assembly (3) is used for discharging impurities generated in the furnace.

3. The tunnel carbonization furnace according to claim 2, wherein the duct assembly (3) comprises a first duct (31), a second duct (32) and a third duct (33), wherein the bottom of the second duct (32) is communicated with the top of the furnace chamber of the carbonization furnace body (11), the top of the second duct (32) is communicated with the first duct (31), the first duct (31) is communicated with the third duct (33), the third duct (33) is communicated with the fan (310), and impurities generated in the furnace chamber are extracted by the air flow generated by the fan (310).

4. The tunnel carbide furnace according to claim 3, characterized in that a control valve (39) is arranged between the first pipe (31) and the second pipe (32), said control valve (39) being used for adjusting the air flow in the furnace.

5. The tunnel carbonization furnace according to claim 2, wherein the duct assembly (3) further comprises a fourth duct (34) and an eighth duct (38), the fourth duct (34) is in communication with the eighth duct (38), the top of the eighth duct (38) is in communication with the bottom of the furnace, and tar generated inside the furnace is discharged from the eighth duct (38) through the fourth duct (34).

6. The tunnel carbonization furnace of claim 5, wherein the electric heating components are arranged outside the fourth pipeline (34) and outside the eighth pipeline (38) and are used for keeping warm, so as to prevent tar in the pipelines from solidifying when meeting condensation.

7. The tunnel carbide furnace according to any of claims 1 to 6, characterized in that the conveyor assembly (12) is a rod of silicon carbide; the heating component (13) adopts a silicon carbide rod.

8. The tunnel carbonization furnace of claim 7, wherein a rod break detector is further arranged inside the furnace chamber and used for detecting the operating state of the rod.

9. The tunnel carbonization furnace according to any one of claims 1 to 6, wherein the insulation layer (15) is made of any one of ceramic fiber, insulating brick, carbon felt, graphite foil or carbon-carbon composite material.

10. A graphite felt production system, characterized by comprising a graphitization furnace and a tunnel carbonization furnace (1) according to any one of claims 1 to 9.