CN201339080Y - Novel compound high-temperature carbide furnace - Google Patents
Novel compound high-temperature carbide furnace Download PDFInfo
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- CN201339080Y CN201339080Y CNU2008202332213U CN200820233221U CN201339080Y CN 201339080 Y CN201339080 Y CN 201339080Y CN U2008202332213 U CNU2008202332213 U CN U2008202332213U CN 200820233221 U CN200820233221 U CN 200820233221U CN 201339080 Y CN201339080 Y CN 201339080Y
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Abstract
The utility model discloses a novel compound high-temperature carbide furnace, which is structurally characterized in that the novel compound high-temperature carbide furnace is provided with a full-sealed furnace body, the furnace body is provided with an interlayer furnace casing, the inside of the interlayer furnace casing is communicated with cooling water, a furnace lining compounded by multi-sectional ceramic fiber and carbon fiber belts is disposed inside the interlayer furnace casing, a furnace chamber is arranged in the middle portion of the furnace lining, the furnace chamber has a building block structure composed of multi-sectional ceramic and graphite plates, a refractory and heat-preservation device is mounted on the lower portion of the furnace chamber, a heating device compounded by ceramic and carbon electrodes is installed above the furnace chamber, and an enclosed cyclic labyrinth sealing device is disposed on openings at two ends of the furnace body. The utility model has the advantages of simple structure, convenient utilization, and capability of satisfying requirements upon high-temperature carbide treatment in the process of producing carbon fibers and the like.
Description
Technical field
The utility model belongs to the heat equipment technical field, is specially adapted to the novel composite high temperature carbonization furnace of high-performance carbon fibre.
Background technology
Carbon fiber and composite thereof have high specific strength, and high ratio modulus is high temperature resistant, and is corrosion-resistant, endurance, creep resistant has conducting function, good thermal conduction, thermal coefficient of expansion is almost nil to wait excellent properties, thereby is widely used in Aero-Space, in defence and military and the civilian industry.
Polyacrylonitrile-based carbon fibre is and national economy and the most closely-related carbon fibre material of national security, be that the development advanced weaponry is equipped necessary raw material, one of high-performance fiber of being badly in need of of strategic missile and fighter plane particularly, also be the structure that presses for such as satellite, aerospace aircraft, nuclear energy equipment and stealthy weapon and the main reinforcing material of functional material, building reinforcing, petroleum industry, ocean development, communications and transportation and sports and amusement industry etc. civilian aspect purposes and extensively, consumption is very big.
In carbon fiber production process, high-temperature service is extremely crucial.High temperature carbonization furnace is because the operating temperature height is big to the properties of carbon influence, and characteristics such as complex art level requirement height are the keys of the key in the large-scale industrialization production line, also are the bottlenecks of restriction China later stage industrialization.
The carbon current fiber production is with in the high temperature carbonization furnace, and heating element heater is Elema or Si-Mo rod, and burner hearth is carborundum or corundum material, and insulation material is the heat-resisting inorganic cellucotton that is, furnace shell is the individual layer carbon steel, and maximum operation (service) temperature generally is no more than 1400 ℃.This furnace type structure is simple, and is easy to process, but the body of heater airproof is poor, burner hearth heat-resistant anti-fatigue ability, and the life-span is short, can not satisfy the demand of preparation high-performance carbon fibre.
Though domestic have heatproof to surpass 1300 ℃ high temperature furnace, operate mainly under the vacuum state, batch operation can not satisfy carbon fiber quantity-produced demand.
External carbon fiber production mainly adopts large-scale graphite-pipe as heating element heater with heating furnace, whole graphite is as burner hearth, whole graphite cake is as insulation material, furnace shell is a sandwich, interior logical cooling water temperature, maximum operation (service) temperature can reach 1500 ℃, but domestic being difficult to of large-scale graphite body of such type of furnace bought, and preparation cost is very high, is difficult to satisfy the actual production requirement.
The utility model content
The purpose of this utility model is exactly in order to solve the deficiencies in the prior art, provides a kind of and has simple in structurely, easy to use, can satisfy a kind of novel composite high temperature carbonization furnace of the advantages such as requirement that high temperature cabonization is handled in the carbon fiber production process.
For achieving the above object, the utility model adopts following technical scheme:
A kind of novel carbon fiber production compound carbonizing stove, its body of heater is hermetically sealed form, and body of heater is provided with the interlayer furnace shell, and interior logical cooling water is the furnace lining that ceramic fibre and carbon fiber felt body multistage are composited in the interlayer furnace shell; The furnace lining middle part is provided with burner hearth, and burner hearth is the modular construction that multistage pottery and high-density graphite plate are formed, and lower furnace portion is the fire resistant heat preserving device; Be provided with pottery and the compound heater of carbon electrode above burner hearth, body of heater two ends fire door is established closed circulation formula labyrinth gland.
Described heater is a heating electrode, it is installed on the ceramic support, heating electrode is provided with the electrode coupling assembling, the heating electrode exit is carbon/carbon compound material and is connected with the electrode cooling jacket, the electrode cooling jacket is communicated with the interlayer furnace shell, and the interlayer furnace shell is provided with cooling water inlet and coolant outlet; Fire door sealing place of body of heater simultaneously all is furnished with cooling jacket.
Described furnace lining width is not less than 200mm, is divided at least six warm areas: three warm areas of furnace lining front end and terminal last warm area are low-temperature space, and maximum temperature is not higher than 1300 ℃, and other warm areas are the high-temperature region, 1600 ℃ of maximum temperatures; All low-temperature space furnace linings are followed successively by mullite fiber, Zirconium oxide fibre, alumina fibre three-layer composite structure or refractoriness from the inside to surface and are not less than 1300 ℃ inorganic heat insulation material and form, and gross thickness is not less than 100mm; All high-temperature region furnace linings are followed successively by carbon fibre carpet veneer press block set zoarium, mullite fiber, Zirconium oxide fibre, four layers of composite construction of alumina fibre or refractoriness from the inside to surface and are not less than the inorganic heat insulation material that 1600 ℃ material with carbon element or refractoriness be not less than 1300 ℃ and form, and gross thickness is not less than 100mm.
Described furnace width is not less than 100mm, is divided at least six warm areas: three warm areas of burner hearth front end and terminal last warm area are low-temperature space, 1300 ℃ of maximum operation (service) temperatures; Other warm areas are the high-temperature region, 1600 ℃ of maximum temperatures; The low-temperature space burner hearth is inorganic heat-stable ceramic plate assembly, and used pottery is that carborundum or aluminium oxide or zirconia or molybdenum silicide or refractoriness are not less than 1300 ℃ inorganic material sheet material; The high-temperature region burner hearth is graphite cake or carbon/carbon compound material plate assembly; Between ceramic wafer and the ceramic wafer, between ceramic wafer and graphite cake or the carbon/carbon compound material plate, the junction bonds together with refractory adhesive between graphite cake or carbon/carbon compound material plate and graphite cake or the carbon/carbon compound material plate.
Described heating electrode length is not less than 300mm, and 1300 ℃ of low-temperature space partial electrodes are ceramic electrode, and material is carborundum or molybdenum silicide; 1600 ℃ of high-temperature region partial electrodes are carbon electrode, by the polylith composite structure; Carbon electrode is high density isostatic pressing formed graphite or high density carbon/carbon compound material, and the terminals of carbon electrode are the carbon/carbon compound material that the carbon fiber layer pressing plate forms through sintering, and couples together with the graphite bolt between carbon electrode contact portion or the carbon electrode piece.
Described closed circulation formula labyrinth gland comprises the labyrinth seal at fire door place, body of heater two ends, it is mended into pipe with nitrogen and is connected, nitrogen is mended into pipe and is connected with the sealing gland blower fan, forms the high pressure sealing gland by a circulating pump sealing high-purity nitrogen, guarantees nitrogen sealing gland effect by replenishing the fresh nitrogen of part.
The beneficial effects of the utility model are: the sharpest edges that made full use of various refractory materials and thermo electric material, under the condition that satisfies the carbon fiber manufacturing technique requirent, greatly lowered manufacturing cost, reduced specification requirement, and greatly saved the nitrogen consumption in the running graphite or high-grade large-scale material with carbon element.
Description of drawings
Fig. 1 is the utility model crosscut cross-sectional view;
Fig. 2 is the utility model rip cutting cross-sectional view.
Among the figure: 1 cooling water inlet, 2 electrode cooling jackets, 3 furnace linings, 4 heating electrodes, 5 electrode coupling assemblings, 6 burner hearths, 7 carbon fibers, 8 ceramic support, 9 interlayer furnace shells, 10 coolant outlets, 11 refractory brick, 12 insulating bricks, 13 sealing gland blower fans, 14 nitrogen are mended into pipe 15 labyrinth seals.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
Among Fig. 1, Fig. 2, novel carbon fiber production compound carbonizing stove of the present utility model, its body of heater is hermetically sealed form, body of heater is provided with interlayer furnace shell 9, is the furnace lining 3 that ceramic fibre and carbon fiber felt body multistage are composited in interlayer furnace shell 9; The body of heater middle part is provided with burner hearth 6, and burner hearth 6 is the modular construction form that multistage pottery and high-density graphite plate are formed, and places carbon fiber 7 in it; Be provided with the heater of pottery and the compound type of service of carbon electrode on burner hearth 6 tops, the electrode leads to client of heater is a carbon/carbon compound material, and body of heater two ends fire door is established closed circulation formula labyrinth gland.Heater is a heating electrode 4, it is installed on the ceramic support 8, and electrode coupling assembling 5 is arranged on it, and heating electrode 4 exits are connected with electrode cooling jacket 2, electrode cooling jacket 2 is communicated with interlayer furnace shell 9, and interlayer furnace shell 9 is provided with cooling water inlet 1 and coolant outlet 10; Fire door sealing place of body of heater simultaneously all is furnished with cooling jacket.The fire resistant heat preserving device of the bottom of burner hearth 6 is refractory brick 11 and insulating brick 12.
Burner hearth 6 width generally are not less than 100mm, and warm area quantity is not less than 6, are made up of the modular construction form that inorganic heat-stable ceramic of multistage and high-density graphite plate are formed.Three warm areas of front end and terminal last warm area are low-temperature space, 1300 ℃ of maximum operation (service) temperatures, burner hearth is inorganic heat-stable ceramic plate assembly, and used pottery is that carborundum or aluminium oxide or zirconia or molybdenum silicide or refractoriness are not less than 1300 ℃ similar inorganic material sheet material; Other warm areas are the high-temperature region, 1600 ℃ of maximum temperatures, burner hearth is graphite cake or carbon/carbon compound material plate assembly, between pottery burner hearth and the ceramic burner hearth, between ceramic burner hearth and the carbon burner hearth, the junction bonds together with refractory adhesive between carbon burner hearth and the carbon burner hearth, refractory adhesive can be an inorganic glue, also can be the similar colloid that contains graphite.
Embodiment 1:
Utilize cold-rolling galvanization steel plate finishing stove interlayer body furnace shell 9, utilize that carbon steel pipes is attached to be welded in around the housing that requires sealing, utilize Elema as the low-temperature space heater element; Utilize 2mm thick, the wide carbon/carbon compound material lath of 50mm is as support, and 3 10mm are thick for built-in, and 200mm is long, and the wide high-density graphite body of 50mm combines composite heating electrode 4, forms heating section length overall 600mm, the carbon heating body of width 50mm; Utilize the thick graphite sheet of 20mm, be spliced into the high-temperature region cavity of inner chamber 400mm * 200mm * 500mm (wide * height * length), utilize the thick carborundum sheet material of 20mm, be spliced into the low-temperature space cavity of inner chamber 400mm * 200mm * 500mm (wide * height * length), seam crossing is bonding firm with inorganic high-temperature agglomerant.6 in interlayer furnace shell 9 and burner hearth be at high-temperature region filling carbon fiber carpet veneer, Mo Laishi fibre felt layer, Zirconium oxide fibre carpet veneer and alumina fibre carpet veneer, and 6 in interlayer furnace shell 9 and burner hearth are at low-temperature space filling carbon fiber carpet veneer, Mo Laishi fibre felt layer, Zirconium oxide fibre carpet veneer and alumina fibre carpet veneer; Seal furnace roof at last, guarantee airtight.Fire door adopts two of the high-pressure sealed circulating fans of 1000 cubic meters/hours of flows as the sealing gland circulating pump, is connected with the nitrogen sealing gland at two ends respectively.Seal out at all heating exits and fire door and all to adopt the heat resistant rubber sealing ring airtight.This type of furnace is processed into 6 district's temperature controls, and temperature is controlled at 1100 ℃, and 1200 ℃, 1300 ℃, 1500 ℃, 1600 ℃, 1100 ℃, the carbon fiber strength that burns out surpasses 3500MPa, and practical application effect is good.
Embodiment 2:
Utilize ordinary hot rolled steel plate finishing stove interlayer body furnace shell 9, utilize that carbon steel pipes is attached to be welded in around the housing that requires sealing, utilize Si-Mo rod as the low-temperature space heater element; Utilize 3mm thick, the wide carbon/carbon compound material lath of 100mm is as support, and 5 20mm are thick for built-in, and 300mm is long, and the wide graphite body of 100mm combines composite heating electrode 4, forms heating section length overall 1500mm, the carbon composite exothermic body of width 100mm; Utilize the thick graphite sheet of 30mm, be spliced into the high-temperature region cavity of inner chamber 1400mm * 200mm * 500mm (wide * height * length), utilize the thick aluminium oxide sheet material of 30mm, be spliced into the low-temperature space cavity of inner chamber 1400mm * 200mm * 500mm (wide * height * length), seam crossing is bonding firm with inorganic high-temperature agglomerant.6 in interlayer furnace shell 9 and burner hearth be at high-temperature region filling carbon fiber carpet veneer, Mo Laishi fibre felt layer, Zirconium oxide fibre carpet veneer and alumina fibre carpet veneer, between furnace shell and burner hearth at low-temperature space filling carbon fiber carpet veneer, Mo Laishi fibre felt layer, Zirconium oxide fibre carpet veneer and alumina fibre carpet veneer; Seal furnace roof at last, guarantee airtight.Fire door adopts two of the high-pressure sealed circulating fans of 5000 cubic meters/hours of flows as the sealing gland circulating pump, is connected with the nitrogen sealing gland at two ends respectively.Seal out at all heating exits and fire door and all to adopt the heat resistant rubber sealing ring airtight.This type of furnace is processed into 8 district's temperature controls, and temperature is controlled at 1100 ℃, and 1200 ℃, 1300 ℃, 1400 ℃, 1500 ℃, 1600 ℃, 1600 ℃, 1100 ℃, the carbon fiber strength that burns out surpasses 3800MPa, and practical application effect is good.
Claims (6)
1. a novel carbon fiber production compound carbonizing stove is characterized by, and it has all-sealed body of heater, and body of heater is provided with the interlayer furnace shell, and interior logical cooling water is the furnace lining that ceramic fibre and carbon fiber felt body multistage are composited in the interlayer furnace shell; The furnace lining middle part is provided with burner hearth, and burner hearth is the modular construction that multistage pottery and high-density graphite plate are formed, and lower furnace portion is the fire resistant heat preserving device; Be provided with pottery and the compound heater of carbon electrode above burner hearth, body of heater two ends fire door is established closed circulation formula labyrinth gland.
2. novel carbon fiber production compound carbonizing stove according to claim 1, it is characterized by, described heater is a heating electrode, it is installed on the ceramic support, heating electrode is provided with the electrode coupling assembling, the heating electrode exit is carbon/carbon compound material and is connected with the electrode cooling jacket that the electrode cooling jacket is communicated with the interlayer furnace shell, and the interlayer furnace shell is provided with cooling water inlet and coolant outlet; Fire door sealing place of body of heater simultaneously all is furnished with cooling jacket.
3. novel carbon fiber production compound carbonizing stove according to claim 1, it is characterized by, described furnace lining width is not less than 200mm, be divided at least six warm areas: three warm areas of furnace lining front end and terminal last warm area are low-temperature space, maximum temperature is not higher than 1300 ℃, other warm areas are the high-temperature region, 1600 ℃ of maximum temperatures; All low-temperature space furnace linings are followed successively by mullite fiber, Zirconium oxide fibre, alumina fibre three-layer composite structure or refractoriness from the inside to surface and are not less than 1300 ℃ inorganic heat insulation material and form, and gross thickness is not less than 100mm; All high-temperature region furnace linings are followed successively by carbon fibre carpet veneer press block set zoarium, mullite fiber, Zirconium oxide fibre, four layers of composite construction of alumina fibre or refractoriness from the inside to surface and are not less than the inorganic heat insulation material that 1600 ℃ material with carbon element or refractoriness be not less than 1300 ℃ and form, and gross thickness is not less than 100mm.
4. novel carbon fiber production compound carbonizing stove according to claim 1, it is characterized by, described furnace width is not less than 100mm, is divided at least six warm areas: three warm areas of burner hearth front end and terminal last warm area are low-temperature space, 1300 ℃ of maximum operation (service) temperatures; Other warm areas are the high-temperature region, 1600 ℃ of maximum temperatures; The low-temperature space burner hearth is inorganic heat-stable ceramic plate assembly, and used pottery is that carborundum or aluminium oxide or zirconia or molybdenum silicide or refractoriness are not less than 1300 ℃ inorganic material sheet material; The high-temperature region burner hearth is graphite cake or carbon/carbon compound material plate assembly; Between ceramic wafer and the ceramic wafer, between ceramic wafer and graphite cake or the carbon/carbon compound material plate, the junction bonds together with refractory adhesive between graphite cake or carbon/carbon compound material plate and graphite cake or the carbon/carbon compound material plate.
5. novel carbon fiber production compound carbonizing stove according to claim 2 is characterized by, and described heating electrode length is not less than 300mm, and wherein 1300 ℃ of warm area partial electrodes are ceramic electrode, and material is carborundum or molybdenum silicide; 1600 ℃ of warm area partial electrodes are carbon electrode, by the polylith composite structure; Carbon electrode is high density isostatic pressing formed graphite or high density carbon/carbon compound material, and the terminals of carbon electrode are the carbon/carbon compound material that the carbon fiber layer pressing plate forms through sintering, and couples together with the graphite bolt between carbon electrode contact portion or the carbon electrode piece.
6. novel carbon fiber production compound carbonizing stove according to claim 1, it is characterized by, described closed circulation formula labyrinth gland comprises the labyrinth seal at fire door place, body of heater two ends, it is mended into pipe with nitrogen and is connected, nitrogen is mended into pipe and is connected with the sealing gland blower fan, forms the high pressure sealing gland by a circulating pump sealing high-purity nitrogen.
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CNU2008202332213U CN201339080Y (en) | 2008-12-30 | 2008-12-30 | Novel compound high-temperature carbide furnace |
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CNU2008202332213U CN201339080Y (en) | 2008-12-30 | 2008-12-30 | Novel compound high-temperature carbide furnace |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106283274A (en) * | 2016-10-31 | 2017-01-04 | 哈尔滨天顺化工科技开发有限公司 | A kind of high temperature cabonization device for producing carbon fiber |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106283274A (en) * | 2016-10-31 | 2017-01-04 | 哈尔滨天顺化工科技开发有限公司 | A kind of high temperature cabonization device for producing carbon fiber |
CN106283274B (en) * | 2016-10-31 | 2018-07-17 | 哈尔滨天顺化工科技开发有限公司 | A kind of high temperature cabonization device for producing carbon fiber |
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Granted publication date: 20091104 Termination date: 20111230 |