CN109972234B - Tow parallel oxidation furnace and oxidation equipment capable of realizing multi-working-temperature - Google Patents
Tow parallel oxidation furnace and oxidation equipment capable of realizing multi-working-temperature Download PDFInfo
- Publication number
- CN109972234B CN109972234B CN201910379440.5A CN201910379440A CN109972234B CN 109972234 B CN109972234 B CN 109972234B CN 201910379440 A CN201910379440 A CN 201910379440A CN 109972234 B CN109972234 B CN 109972234B
- Authority
- CN
- China
- Prior art keywords
- oxidation
- cavity
- air
- return
- hot air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 322
- 230000003647 oxidation Effects 0.000 title claims abstract description 313
- 238000007664 blowing Methods 0.000 claims abstract description 73
- 230000001590 oxidative effect Effects 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 description 14
- 239000000835 fiber Substances 0.000 description 12
- 238000005265 energy consumption Methods 0.000 description 6
- 230000035484 reaction time Effects 0.000 description 6
- 229920000049 Carbon (fiber) Polymers 0.000 description 5
- 239000004917 carbon fiber Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Inorganic Fibers (AREA)
- Furnace Details (AREA)
Abstract
The invention relates to a parallel oxidation furnace for tows, which realizes multiple working temperatures, and comprises a furnace body and at least two sets of hot air circulation systems; at least one set of return air pipeline is arranged in all the hot air circulation systems; each set of hot air circulation system comprises a circulating fan, an air inlet pipe connected with the output end of the circulating fan, a blowing pipeline communicated with the outlet of the air inlet pipe, an oxidation cavity and a return air cavity; a filter screen and a heater are arranged in the return air cavity, a blowing pipeline and a return air pipeline are respectively positioned at the inlet and the outlet of the oxidation cavity, the blowing pipeline comprises a plurality of blowing pipes, and a first gap for the circulation of tows is reserved between two adjacent blowing pipes; the return air pipeline comprises a plurality of return air pipes, a second gap for the circulation of tows is formed between two adjacent return air pipes, and the tows pass through the first gap and the second gap in a reciprocating manner. The invention also relates to an oxidation device, which can perform preoxidation process treatment on the filament bundle.
Description
Technical Field
The invention relates to the technical field of filament bundle oxidation furnaces, in particular to a filament bundle parallel oxidation furnace and oxidation equipment for realizing multiple working temperatures.
Background
In the production of carbon fibers, pre-oxidation is a critical process, the function of which is to convert a precursor of a linear molecular chain structure into a heat-resistant trapezoid molecular structure, and the process is closely related to the performance of the carbon fibers and the manufacturing cost of the carbon fibers.
Although there are solid, liquid and air flow treatment methods for pre-oxidizing the filaments, the current industry is mainly adopting a hot air circulation oven mode, wherein horizontal blowing, vertical blowing, side blowing and center-to-two-end blowing are currently popular technologies in industry. For any blowing mode, there are some common technical requirements: such as uniform temperature, uniform wind speed, uniform wind field, low energy consumption, small waste discharge, high efficiency, short treatment time, high heat dissipation efficiency and the like.
The core function of the preoxidation is not heating, but to rapidly and efficiently carry away a large amount of heat removed during the preoxidation of the filaments. If the heat is not taken away in time, the heat of the fibers of the precursor fibers is concentrated, fusion among the fibers is generated, and the subsequent carbonized fibers are brittle and have low performance; if the heat builds up more, the tow can fire, mishandle, and even cause an explosion of the oxidizer. This can result in significant personnel and property loss. Therefore, any blowing mode realizes the following technical key points: the fiber is kept at a certain temperature, so that the fiber is enabled to react continuously and efficiently, heat generated by chemical reaction of the fiber is taken away rapidly and efficiently, the fiber is enabled not to melt and fire, and the more rapid the reaction is, the more heat needs to be taken away. The higher the requirements on the equipment.
With the strong growth of carbon fiber industry applications, low-cost, large-tow carbon fibers have become a necessary variety for industrial applications. The larger the number and mass of fibers treated in the oxidation oven, the more chemical reaction heat, which leads to a significant increase in the probability of fiber fusion and ignition. Of course, this vigorous reaction can be controlled by extending the reaction time, but there are problems in that the reaction time is long, the power consumption is increased, and the cost is greatly increased. Therefore, high load (large amount of treated fibers), high efficiency (rapid removal of reaction heat), high safety (no fusion and ignition), low cost (short pre-oxidation time) and higher requirements for design and manufacture of the pre-oxidation furnace.
The pre-oxidation reaction is a thermochemical reaction closely related to temperature and time, under certain conditions, the higher the temperature is, the faster the reaction is and the shorter the time is. Meanwhile, if the reaction temperature is more finely divided, the efficiency and the quality of the pre-oxidation reaction can be improved and the thermochemical reaction time and the cost can be reduced under the same energy consumption and the same capital investment. The prior preoxidation furnace and the prior preoxidation process are as follows: the continuous reaction process is divided into 3-10 temperature sections, each temperature is in charge of one pre-oxidation furnace temperature zone, and the engineering scheme is too simplified and deviates greatly from the basic principle of pre-oxidation thermochemical reaction, so that the equipment investment is huge and the efficiency is low.
Disclosure of Invention
Aiming at the technical problems existing in the prior art, the first object of the invention is that: the parallel oxidation furnace for the tows is exquisite in structure, and each hot air circulation system is reasonable in division, so that the tows can be oxidized at different temperatures, and the oxidation efficiency and effect of the tows are ensured.
It is another object of the present invention to provide an oxidation apparatus that subdivides the reaction temperature, increases the efficiency and quality of the pre-oxidation reaction, and reduces the thermochemical reaction time and cost at the same energy consumption and capital investment.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a parallel oxidation furnace for realizing multi-working temperature comprises a furnace body and at least two sets of hot air circulation systems; at least one set of return air pipeline is arranged in all the hot air circulation systems;
each set of hot air circulation system comprises a circulating fan, an air inlet pipe connected with the output end of the circulating fan, a blowing pipeline communicated with the outlet of the air inlet pipe, an oxidation cavity and a return air cavity; the circulating fan, the air inlet pipe, the air blowing pipeline, the oxidation cavity and the return air cavity are positioned in the furnace body;
the air return cavity is internally provided with a filter screen and a heater, the air blowing pipeline and the air return pipeline are respectively positioned at the inlet and the outlet of the oxidation cavity, and along the circulation path of air, the air sequentially passes through the circulating fan, the air inlet pipe, the air blowing pipeline, the oxidation cavity, the air return pipeline, the filter screen in the air return cavity and the heater in the air return cavity; the blowing pipeline comprises a plurality of blowing pipes, and a first gap for the circulation of tows is reserved between two adjacent blowing pipes; the return air pipeline comprises a plurality of return air pipes, a second gap for the circulation of tows is formed between two adjacent return air pipes, and the tows pass through the first gap and the second gap in a reciprocating manner. Each set of hot air circulation system has different temperatures, and each tow parallel oxidation furnace can have different working temperatures to oxidize the tows. The filament bundles repeatedly pass through the oxidation cavity of each set of hot air circulation system.
Further is: the oxidation cavity is divided into a first oxidation cavity and a second oxidation cavity; the hot air circulation system also comprises a diverter arranged in the blowing pipe; the first oxidation cavity and the second oxidation cavity are symmetrically distributed on two sides of the blowing pipe, the blowing pipe is provided with a main pipe and two branch pipes, the main pipe of the blowing pipe is communicated with the air inlet pipe, the two branch pipes of the blowing pipe are respectively communicated with the first oxidation cavity and the second oxidation cavity, the flow divider is positioned at the junction of the main pipe and the two branch pipes and is in a V shape, the flow divider is provided with two flow dividing surfaces, one flow dividing surface faces one branch pipe, the other flow dividing surface faces the other branch pipe, the wind direction of the first oxidation cavity is opposite to the wind direction of the second oxidation cavity, return air pipelines are arranged at two ends in the furnace body, and the outlet of the first oxidation cavity and the outlet of the second oxidation cavity are respectively communicated with the return air pipelines at two ends in the furnace body. The tows repeatedly pass through the first oxidation cavity and the second oxidation cavity to be oxidized, and the flow divider can divide the hot air and then send the hot air to the first oxidation cavity and the second oxidation cavity.
Further is: the oxidation cavity is divided into a first oxidation cavity and a second oxidation cavity; the hot air circulation system also comprises a diverter communicated with the air inlet pipe; the diverter is provided with two outlets, the two outlets of the diverter are respectively communicated with the first oxidation cavity and the second oxidation cavity through blowpipes, the first oxidation cavity and the second oxidation cavity are symmetrically distributed on two sides of the diverter, the wind direction of the first oxidation cavity is opposite to that of the second oxidation cavity, two ends in the furnace body are respectively provided with return air pipelines, and the outlets of the first oxidation cavity and the outlets of the second oxidation cavity are respectively communicated with the return air pipelines at two ends in the furnace body. The tows repeatedly pass through the first oxidation cavity and the second oxidation cavity to be oxidized, and the flow divider can divide the hot air and then send the hot air to the first oxidation cavity and the second oxidation cavity through the blowing dividing pipe.
Further is: the first oxidation cavity of a certain set of hot air circulation system is communicated with the return air cavity of the same set of hot air circulation system through a return air pipeline at one end in the furnace body, and the second oxidation cavity of the set of hot air circulation system is communicated with the return air cavity of an adjacent hot air circulation system through a return air pipeline at the other end in the furnace body. The hot air returns to the return air cavity through the return air pipeline to be continuously circulated.
Further is: the number of the hot air circulation systems is equal to the number of the hot air circulation systems, each two hot air circulation systems are provided with a circulation group, each circulation group is mutually independent, two hot air circulation systems of one circulation group are adjacent, in one circulation group, a first oxidation cavity of one hot air circulation system is communicated with a return air cavity of the same hot air circulation system through a return air pipeline at one end in the furnace body, and a second oxidation cavity of the hot air circulation system is communicated with a return air cavity of the other hot air circulation system through a return air pipeline at the other end in the furnace body. Different sets of cycles are independent of each other and have different oxidation temperatures.
Further is: the hot air circulation system also comprises an induced draft hood; the inlet of the induced draft hood is communicated with the outlet of the air inlet pipe, the outlet of the induced draft hood is communicated with the inlet of the air blowing pipeline, and the induced draft hood can guide air to flow to the air blowing pipeline.
Further is: the hot air circulation system also comprises a driving motor; the circulating fan is located the return air intracavity, and driving motor is located the furnace body and driving motor's output is connected with circulating fan, and the direction of blowing of the circulating fan of two sets of adjacent hot air circulation systems is opposite, and driving motor drives circulating fan and bloies.
An oxidation device utilizing the parallel oxidation furnace for realizing the multi-working temperature tows, wherein the oxidation device is provided with a plurality of tows which sequentially pass through all the oxidation devices;
each oxidation device comprises a parallel oxidation furnace unit, a first reciprocating godet assembly, a second reciprocating godet assembly and a plurality of tension control assemblies, wherein the first reciprocating godet assembly and the second reciprocating godet assembly are respectively arranged at two ends of the parallel oxidation furnace unit; the parallel oxidation furnace unit comprises at least one filament bundle parallel oxidation furnace, and the tension control assembly is used for connecting filament bundles entering from an initial inlet of the filament bundle parallel oxidation furnace or filament bundles exiting from an end outlet of the filament bundle parallel oxidation furnace; the tension control assembly can generate a certain pretension force, so that the yarn bundles are convenient to convey.
The return air pipeline is arranged in the furnace body, all second gaps in the same set of return air pipeline are sequentially distributed from bottom to top, all first gaps in the same set of blowing pipeline are sequentially distributed from bottom to top, the first reciprocating godet assembly is provided with a plurality of first turning roller groups which are distributed from bottom to top, the second reciprocating godet assembly is provided with a plurality of second turning roller groups which are distributed from bottom to top, all first turning roller groups, all first gaps, all second gaps and all second turning roller groups are uniformly distributed from bottom to top in a one-to-one correspondence manner, and tows pass through the first gaps and the second gaps at the bottom and then pass through the first gaps and the second gaps at the top after being turned 180 degrees by the first turning roller groups or the second turning roller groups. The first turning roll set or the second turning roll set can enable the traveling direction of the filament bundle to be turned 180 degrees, and the filament bundle repeatedly passes through the filament bundle parallel oxidation furnace from different first gaps and second gaps.
Further is: the oxidation apparatus further comprises a mounting frame; the first reciprocating godet assembly, the second reciprocating godet assembly and the tension control assembly are all installed on the installation frame, the filament bundle is wound on the first turning roller set and the second turning roller set, the winding-in point and the winding-out point of the filament bundle and the first turning roller set are all as high as the first gap, and the winding-in point and the winding-out point of the filament bundle and the second turning roller set are all as high as the first gap. The first and second sets of turning rolls pass the tow in parallel through the first and second gaps.
Further is: several oxidizing apparatuses are arranged in series in the horizontal direction, and the tow parallel oxidizing furnaces of each parallel oxidizing furnace unit are stacked in the vertical direction. Different temperatures can be set for one parallel oxidation furnace of tows, and different temperatures can be set for different parallel oxidation furnaces of tows, so that each parallel oxidation furnace unit can control a plurality of temperatures, and finally, one oxidation device can be subdivided into a plurality of oxidation temperatures, and under the same energy consumption and capital investment, the efficiency and quality of the pre-oxidation reaction can be improved, and the thermochemical reaction time and cost are reduced.
In general, the invention has the following advantages:
the parallel oxidation furnace for the tows has the characteristics of uniform temperature, uniform wind speed, uniform wind field, low energy consumption, small waste discharge amount, high efficiency, short treatment time, high heat dissipation efficiency and the like, maintains a certain temperature, enables the fibers to react efficiently and continuously, and can generate different working temperatures to oxidize the tows. Different hot air circulation systems are arranged in the same filament bundle parallel oxidation furnace, and the air of the different hot air circulation systems can only flow in the same furnace body, so that the energy loss in the oxidation process can be reduced. Meanwhile, the oxidation equipment is provided on the basis of realizing a parallel oxidation furnace of tows with multiple working temperatures aiming at the defects of the equipment in the prior art. The invention can realize the setting and operation of a plurality of working temperatures in one filament bundle parallel oxidation furnace, more accords with the basic principle of thermochemical reaction of the pre-oxidation furnace, and simultaneously combines a plurality of filament bundle parallel oxidation furnaces, and forms oxidation equipment with higher temperature subdivision degree by adding mechanisms such as a first reciprocating godet component, a second reciprocating godet component, a plurality of tension control components and the like. Therefore, the method can meet the requirements of industries such as high efficiency, short time, low processing cost, low equipment investment, low construction cost and the like on the pre-oxidation equipment.
Drawings
FIG. 1 is a front view of a strand parallel oxidation oven with two sets of heated air circulation systems.
Fig. 2 is a front view of a strand parallel oxidation oven with four sets of heated air circulation systems.
Fig. 3 is a top view of a tow parallel oxidation oven with two sets of heated air circulation systems or a tow parallel oxidation oven with four sets of heated air circulation systems.
Fig. 4 is a front view of an oxidation apparatus having two sets of hot air circulation systems per tow parallel oxidation oven.
Fig. 5 is a front view of an oxidation apparatus provided with four sets of hot air circulation systems per tow parallel oxidation oven.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description.
In order to facilitate the unified viewing of the various reference numerals within the drawings of the specification, the reference numerals appearing in the drawings of the specification are now collectively described as follows:
1 is the furnace body, 2 is the return air pipeline, 3 is the blast pipe, 4 is the circulating fan, 5 is the air-supply line, 6 is the silk bundle, 7 is the return air chamber, 8 is the filter screen, 9 is the heater, 10 is the blowing pipe, 11 is first clearance, 12 is the return air pipe, 13 is the second clearance, 14 is first oxidation chamber, 15 is the second oxidation chamber, 16 is the shunt, 17 is the induced draft cover, 18 is driving motor, 19 is the mounting bracket, 20 is first turning roller group, 21 is second turning roller group, 22 is tension control assembly.
For convenience of description, the following orientations will be described below: the vertical direction corresponds to the vertical direction of fig. 1, and the horizontal direction corresponds to the horizontal direction of fig. 1.
Example 1
Referring to fig. 1, 2 and 3, a parallel oxidation furnace for filament bundles capable of realizing multiple working temperatures comprises a furnace body and at least two sets of hot air circulation systems; at least one set of return air pipeline is arranged in all the hot air circulation systems; each set of hot air circulation system can control one temperature, and one furnace body can realize oxidation of a plurality of working temperatures on the filament bundles. At least one set of return air pipeline is arranged in all the hot air circulating systems in each furnace body, and the return air pipeline can guide hot air to the circulating fan of the hot air circulating system.
Each set of hot air circulation system comprises a circulating fan, an air inlet pipe connected with the output end of the circulating fan, a blowing pipeline communicated with the outlet of the air inlet pipe, an oxidation cavity and a return air cavity; the circulating fan, the air inlet pipe, the air blowing pipeline, the oxidation cavity and the return air cavity are positioned in the furnace body; the wind circularly flows in the furnace body under the drive of the circulating fan.
The air return cavity is internally provided with a filter screen and a heater, the air blowing pipeline and the air return pipeline are respectively positioned at the inlet and the outlet of the oxidation cavity, and along the circulation path of air, the air sequentially passes through the circulating fan, the air inlet pipe, the air blowing pipeline, the oxidation cavity, the air return pipeline, the filter screen in the air return cavity and the heater in the air return cavity; the air in the furnace body is heated by the heater and becomes hot air, the hot air flows through the air inlet pipe, the air blowing pipeline, the oxidation cavity and the return air pipeline in sequence under the drive of the circulating fan, and finally the hot air flows back into the return air cavity. The filament bundles are oxidized by hot air in the oxidation cavity, after the air returns to the return air cavity, the air is filtered in the return air cavity, is heated by the heater again, and finally continuously circulates again according to the circulating mode under the driving of the circulating fan. The blowing pipeline comprises a plurality of blowing pipes, the blowing pipes are sequentially arranged from top to bottom, and a first gap for the circulation of tows is reserved between two adjacent blowing pipes; the return air pipeline comprises a plurality of return air pipes, the plurality of return air pipes are sequentially arranged from top to bottom, a second gap for tow circulation exists between two adjacent return air pipes, and the tow passes through the first gap and the second gap in a reciprocating mode. The first gaps and the second gaps are in one-to-one correspondence, namely, in the horizontal direction (left-right direction), each first gap corresponds to one second gap, a tow firstly passes through the first gap to enter the furnace body and then passes through the second gap, the tow passes out of the furnace body and then passes through the furnace body from the other first gap and the second gap, the tow continuously passes through the furnace body repeatedly from the different first gaps and the second gaps, and an oxidation cavity of each hot air circulation system of each furnace body passes through a plurality of times to continuously oxidize for a plurality of times. When the tows repeatedly pass through the furnace body from bottom to top (or from top to bottom), each layer of tows are parallel to each other, hot air flows between each layer of tows, the hot air can only pass through between two layers of tows which are parallel to each other, and the hot air can only flow in the horizontal direction and cannot flow up and down in the oxidation cavity.
The oxidation cavity is divided into a first oxidation cavity and a second oxidation cavity; the hot air circulation system also comprises a diverter arranged in the blowing pipe; the blowing pipe is positioned in the middle part of the furnace body, the first oxidation cavity and the second oxidation cavity are symmetrically distributed on two sides (left side and right side) of the blowing pipe, the blowing pipe is provided with a main pipe and two branch pipes, the main pipe of the blowing pipe is communicated with the air inlet pipe, the two branch pipes of the blowing pipe are respectively communicated with the first oxidation cavity and the second oxidation cavity, the flow divider is positioned at the junction of the main pipe and the two branch pipes and is in a V shape, the flow divider is provided with two flow dividing surfaces, one flow dividing surface faces one branch pipe, the other flow dividing surface faces the other branch pipe, the flow divider divides wind into two parts, one part of wind flows to the first oxidation cavity, and the other part of wind flows to the second oxidation cavity. The wind direction of the first oxidation cavity is opposite to the wind direction of the second oxidation cavity, namely, when the wind of the first oxidation cavity is left, the wind of the second oxidation cavity is right, and when the wind of the second oxidation cavity is left, the wind of the first oxidation cavity is right. The two ends in the furnace body are respectively provided with an air return pipeline, the outlet of the first oxidation cavity and the outlet of the second oxidation cavity are respectively communicated with the air return pipelines at the two ends in the furnace body, and the air of the first oxidation cavity and the air of the second oxidation cavity are respectively returned to the air return cavities through the air return pipelines at the two ends in the furnace body. The first gap is positioned at two ends in the furnace body, and the second gap is positioned in the middle part in the furnace body. The filament bundle enters the oxidation cavity from the first gap at one end, passes through the second gap, and finally exits from the first gap at the other end. In this embodiment, the filament bundle first passes through the first gap outside one end (left end) of the furnace body to enter one of the oxidation chambers (first oxidation chamber), then passes through the second gap to reach the other oxidation chamber (second oxidation chamber), then passes through the first gap to reach the outside of the other end (right end) of the furnace body, then the traveling direction of the filament bundle is turned 180 degrees to enter the oxidation chamber (second oxidation chamber) again from the first gap (right end), then passes through the second gap to return to the first oxidation chamber, finally passes through the first gap at the leftmost end to return to the outside of the left end of the furnace body, and then passes through the oxidation chamber of one of the hot air circulation systems in the furnace body repeatedly according to the above path, and then passes through the oxidation chamber of the next hot air circulation system repeatedly according to the same method. The tows are repeatedly oxidized on the same hot air circulation system and repeatedly oxidized in the same furnace body by different hot air circulation systems, so that the tows can efficiently and continuously produce oxidation reaction. The first gap and the second gap through which the filament bundles pass each time are different, and the filament bundles sequentially pass through all the first gap and the second gap from bottom to top.
The other diverter is installed in the following way: the oxidation cavity is divided into a first oxidation cavity and a second oxidation cavity; the hot air circulation system also comprises a diverter communicated with the air inlet pipe; the diverter is provided with two outlets, the two outlets of the diverter are respectively communicated with the first oxidation cavity and the second oxidation cavity through blowpipes, and the two outlets of the diverter are respectively provided with a blowing pipeline. The air of the circulating fan flows to the flow divider from the air inlet pipe, after the air is divided into two parts by the flow dividing function of the flow divider, one part of air flows to the first oxidation cavity through one set of air blowing pipelines, and the other part of air flows to the second oxidation cavity through the other set of air blowing pipelines. The shunt is located the centre in the furnace body, and first oxidation chamber and second oxidation chamber symmetric distribution are in the both sides (left and right sides) of shunt and the wind direction in first oxidation chamber is opposite with the wind direction in second oxidation chamber, and the wind direction in second oxidation chamber is right when the wind in first oxidation chamber is left promptly, and the wind in first oxidation chamber is right when the wind in second oxidation chamber is left. The two ends in the furnace body are respectively provided with an air return pipeline, and the outlet of the first oxidation cavity and the outlet of the second oxidation cavity are respectively communicated with the air return pipelines at the two ends in the furnace body. The wind of the first oxidation cavity and the second oxidation cavity respectively returns to the return air cavity through return air pipelines at two ends in the furnace body. The first gap is positioned at two ends in the furnace body, and the second gap is positioned in the middle part in the furnace body. The filament bundle enters the oxidation cavity from the first gap at one end, passes through the second gap, and finally exits from the first gap at the other end. In this embodiment, the filament bundle first passes through the first gap outside one end (left end) of the furnace body to enter one of the oxidation chambers (first oxidation chamber), then passes through the second gap to reach the other oxidation chamber (second oxidation chamber), then passes through the first gap to reach the outside of the other end (right end) of the furnace body, then the traveling direction of the filament bundle is turned 180 degrees to enter the oxidation chamber (second oxidation chamber) again from the first gap (right end), then passes through the second gap to return to the first oxidation chamber, finally passes through the first gap at the leftmost end to return to the outside of the left end of the furnace body, and then passes through the oxidation chamber of one of the hot air circulation systems in the furnace body repeatedly according to the above path, and then passes through the oxidation chamber of the next hot air circulation system repeatedly according to the same method. The tows are repeatedly oxidized on the same hot air circulation system and repeatedly oxidized in the same furnace body by different hot air circulation systems, so that the tows can efficiently and continuously produce oxidation reaction. The first gap and the second gap through which the filament bundles pass each time are different, and the filament bundles sequentially pass through all the first gap and the second gap from bottom to top.
The first oxidation cavity of a certain set of hot air circulation system is communicated with the return air cavity of the same set of hot air circulation system through a return air pipeline at one end in the furnace body, and the second oxidation cavity of the set of hot air circulation system is communicated with the return air cavity of an adjacent hot air circulation system through a return air pipeline at the other end in the furnace body. With reference to fig. 1 and 3, the hot air is blown out by the circulating fan of the hot air circulating system on the right side, flows to the first oxidation cavity and the second oxidation cavity respectively through the flow divider, and returns to the return air cavity of the hot air circulating system on the right side through the return air pipeline on the right side, and returns to the return air cavity of the other (left) hot air circulating system through the return air pipeline on the left side. The circulating fan of the left hot air circulating system blows hot air, the hot air flows to the first oxidation cavity and the second oxidation cavity respectively through the flow divider, the hot air in the first oxidation cavity returns to the return air cavity of the left hot air circulating system through the return air pipeline at the left end, and the hot air in the second oxidation cavity returns to the return air cavity of the other (right) hot air circulating system through the return air pipeline at the right end.
The number of the hot air circulation systems is equal to two, all the hot air circulation systems are divided into two circulation groups, each circulation group is mutually independent, two sets of hot air circulation systems of one circulation group are adjacent, namely, part of wind of two sets of hot air circulation systems in the same circulation group is communicated, and different circulation groups are not communicated, namely, when four sets of hot air circulation systems are arranged in one furnace body, the upper two sets are one circulation group, and the lower two sets are one circulation group by combining with fig. 2 and 3. In one circulation group, a first oxidation cavity of a certain set of hot air circulation system is communicated with a return air cavity of the same set of hot air circulation system through a return air pipeline at one end in the furnace body, and a second oxidation cavity of the set of hot air circulation system is communicated with a return air cavity of another set of hot air circulation system through a return air pipeline at the other end in the furnace body. Two sets of hot air circulating systems are arranged in each circulating group, and the same circulating group is provided with: when hot air is blown out by the circulating fan of the right hot air circulating system, the hot air flows to the first oxidation cavity and the second oxidation cavity respectively through the flow divider, the hot air in the first oxidation cavity returns to the return air cavity of the right hot air circulating system through the return air pipeline at the right end, and the hot air in the second oxidation cavity returns to the return air cavity of the other (left) hot air circulating system through the return air pipeline at the left end. When the circulating fan of the left hot air circulating system blows hot air, the hot air flows to the first oxidation cavity and the second oxidation cavity respectively through the flow divider, the hot air in the first oxidation cavity returns to the return air cavity of the left hot air circulating system through the return air pipeline at the left end, and the hot air in the second oxidation cavity returns to the return air cavity of the other (right) hot air circulating system through the return air pipeline at the right end.
The hot air circulation system also comprises an induced draft hood; the inlet of the induced draft hood is communicated with the outlet of the air inlet pipe, and the outlet of the induced draft hood is communicated with the inlet of the air blowing pipeline. The hot air circulation system also comprises a driving motor; the circulating fan is positioned in the return air cavity, the driving motor is positioned outside the furnace body, the output end of the driving motor is connected with the circulating fan, and the blowing directions of the circulating fans of two adjacent hot air circulating systems are opposite. The driving motor provides power for the circulating fan, so that the circulating fan continuously transmits hot air to the air inlet pipe, the hot air of the air inlet pipe enters the flow divider and the blowing pipe through the guide of the air guiding cover, under the action of the flow divider, one part of the hot air enters the first oxidation cavity, the other part of the hot air enters the second oxidation cavity, and the tows are oxidized by the hot air when passing through the first oxidation cavity and the second oxidation cavity.
The working principle of the parallel oxidation furnace for the filament bundles is as follows: in each cycle group: when hot air is blown out by the circulating fan of the right hot air circulating system, the hot air flows to the first oxidation cavity and the second oxidation cavity respectively through the flow divider, the hot air in the first oxidation cavity returns to the return air cavity of the right hot air circulating system through the return air pipeline at the right end, and the hot air in the second oxidation cavity returns to the return air cavity of the other (left) hot air circulating system through the return air pipeline at the left end. When the circulating fan of the left hot air circulating system blows hot air, the hot air flows to the first oxidation cavity and the second oxidation cavity respectively through the flow divider, the hot air in the first oxidation cavity returns to the return air cavity of the left hot air circulating system through the return air pipeline at the left end, and the hot air in the second oxidation cavity returns to the return air cavity of the other (right) hot air circulating system through the return air pipeline at the right end. The tow firstly passes through a first gap outside one end (left end) of the furnace body to enter one oxidation cavity (first oxidation cavity), then passes through a second gap to reach the other oxidation cavity (second oxidation cavity), then passes through the first gap to reach the outside of the other end (right end) of the furnace body, then the traveling direction of the tow is turned 180 degrees to enter the oxidation cavity (second oxidation cavity) again from the first gap (right end), then passes through the second gap to return to the first oxidation cavity, finally returns to the outside of the left end of the furnace body from the first gap at the leftmost end, and after the tow repeatedly passes through the oxidation cavity of one hot air circulation system in the furnace body according to the path, the tow repeatedly passes through the oxidation cavity of the next hot air circulation system according to the same method. The tows are repeatedly oxidized on the same hot air circulation system and repeatedly oxidized in the same furnace body by different hot air circulation systems, so that the tows can efficiently and continuously produce oxidation reaction.
Example 2
The technical features are the same as in example 1 except for the following technical features.
Referring to fig. 4 and 5, an oxidation apparatus is characterized in that: the oxidation equipment is provided with a plurality of filament bundles which sequentially pass through all the oxidation equipment;
each oxidation device comprises a parallel oxidation furnace unit, a first reciprocating godet assembly, a second reciprocating godet assembly and a plurality of tension control assemblies, wherein the first reciprocating godet assembly and the second reciprocating godet assembly are respectively arranged at two ends of the parallel oxidation furnace unit; the parallel oxidation furnace unit comprises at least one tow parallel oxidation furnace; the strand parallel oxidation oven is consistent with the strand parallel oxidation oven of example 1. The tension control assembly is used for connecting the tows entering from the initial inlet of the tow parallel oxidation furnace or the tows exiting from the tail end outlet of the tow parallel oxidation furnace; the inlet of each tow parallel oxidation furnace is provided with a tension control component, the outlet of each tow parallel oxidation furnace is provided with a tension control component, and two adjacent tow parallel oxidation furnaces share one tension control component. The tension control assembly can control the tensioning degree of the tows, and can tension the tows entering the furnace body, so that the tows horizontally pass through the tows parallel oxidation furnace.
The return air pipeline is arranged in the furnace body, all second gaps in the same set of return air pipeline are sequentially distributed from bottom to top, all first gaps in the same set of blowing pipeline are sequentially distributed from bottom to top, the first reciprocating godet assembly is provided with a plurality of first turning roller groups which are distributed from bottom to top, the second reciprocating godet assembly is provided with a plurality of second turning roller groups which are distributed from bottom to top, and all first turning roller groups, all first gaps, all second gaps and all second turning roller groups are uniformly distributed from bottom to top in a one-to-one correspondence manner. The two ends (left and right ends) in the furnace body are respectively provided with a first gap, the middle part in the furnace body is provided with a second gap, the left end of each second gap corresponds to a first gap and a first turning roller set, the right end of each second gap corresponds to a first gap and a second turning roller set, namely, the first gap, the second gap, the first turning roller set and the second turning roller set are all arranged on the horizontal line of the same height. The tow passes through the first and second gaps below and then passes through the first or second turning roll sets 180 degrees to turn and then passes through the first and second gaps above. The filament bundle firstly passes through a first gap below one end (left lower part) of the furnace body to enter one oxidation cavity (first oxidation cavity), then horizontally passes through a second gap to reach the other oxidation cavity (second oxidation cavity), then horizontally passes through the first gap to reach the outside below the other end (right lower part) of the furnace body, then the traveling direction of the filament bundle is turned 180 degrees under the action of a second turning roll set, then horizontally enters the oxidation cavity (second oxidation cavity) from the first gap at the right lower part (the last height) again, then horizontally passes through the second gap to return to the first oxidation cavity, then horizontally passes through the first gap at the leftmost end to return to the outside of the left end of the furnace body, finally the filament bundle enters the oxidation cavity from the first gap at the last height under the action of the first turning roll set, and the above process is repeated continuously. The tow is turned 180 ° by a first turning roll set on the left side of the oxidation oven and the tow is turned 180 ° by a second turning roll set on the right side of the oxidation oven. The filament bundle repeatedly horizontally passes through the oxidation cavity of one of the hot air circulation systems in the furnace body according to the path, and then repeatedly passes through the oxidation cavity of the next hot air circulation system according to the same method. The tows are repeatedly oxidized on the same hot air circulation system and repeatedly oxidized in the same furnace body by different hot air circulation systems, so that the tows can efficiently and continuously produce oxidation reaction. After the filament bundle passes through one parallel oxidation furnace unit, the filament bundle starts to pass through the next parallel oxidation furnace unit.
The oxidation apparatus further comprises a mounting frame; the two ends of the parallel oxidation furnace unit are provided with mounting frames, the first reciprocating godet assembly, the second reciprocating godet assembly and the tension control assembly are all mounted on the mounting frames, the tension control assembly consists of a plurality of tensioning wheels, and the tows enter the tow parallel oxidation furnace after bypassing the tensioning wheels in sequence. The tow is wound on the first turning roller set and the second turning roller set, and the first turning roller set and the second turning roller set can realize 180-degree turning of the tow. The winding-in point and the winding-out point of the filament bundle and the first turning roller set are equal to the first gap, and the winding-in point and the winding-out point of the filament bundle and the second turning roller set are equal to the first gap, namely the filament bundle horizontally passes through the furnace body.
Several oxidizing apparatuses are arranged in series in the horizontal direction, and the tow parallel oxidizing furnaces of each parallel oxidizing furnace unit are stacked in the vertical direction. The parallel oxidation furnaces of the tows of each parallel oxidation furnace unit are stacked together in the vertical direction, the two parallel oxidation furnace units are arranged in series in the horizontal direction, the tows firstly pass through each parallel oxidation furnace of the tows from bottom to top, and then the tows pass through the parallel oxidation furnaces of the tows of the next parallel oxidation furnace unit in turn to the right. The oxidation equipment can enable the tows to continuously react with high efficiency, and simultaneously take away heat generated by chemical reaction of the tows with high efficiency, so that the tows are not fused and fire is generated.
The working principle of the oxidation equipment is as follows: the tow passes through each parallel oxidation furnace unit in turn, and when the tow passes through each parallel oxidation furnace unit, the tow passes through a plurality of tow parallel oxidation furnaces, and each tow parallel oxidation furnace is provided with a plurality of hot air circulation systems, so that the tow passes through different hot air circulation systems when passing through each tow parallel oxidation furnace, namely, passes through different working temperatures. The temperature of the oxidation equipment is subdivided layer by layer, and the filament bundles can pass through a plurality of subdivided working temperatures. The more finely divided the reaction temperature, the more the efficiency and quality of the pre-oxidation reaction can be improved and the thermochemical reaction time and cost can be reduced under the same energy consumption and capital investment.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (7)
1. A parallel oxidation oven of silk bundle of realizing operating temperature, its characterized in that: comprises a furnace body and at least two sets of hot air circulation systems; at least one set of return air pipeline is arranged in all the hot air circulation systems;
each set of hot air circulation system comprises a circulating fan, an air inlet pipe connected with the output end of the circulating fan, a blowing pipeline communicated with the outlet of the air inlet pipe, an oxidation cavity and a return air cavity; the circulating fan, the air inlet pipe, the air blowing pipeline, the oxidation cavity and the return air cavity are positioned in the furnace body;
the air return cavity is internally provided with a filter screen and a heater, the air blowing pipeline and the air return pipeline are respectively positioned at the inlet and the outlet of the oxidation cavity, and along the circulation path of air, the air sequentially passes through the circulating fan, the air inlet pipe, the air blowing pipeline, the oxidation cavity, the air return pipeline, the filter screen in the air return cavity and the heater in the air return cavity; the blowing pipeline comprises a plurality of blowing pipes, and a first gap for the circulation of tows is reserved between two adjacent blowing pipes; the air return pipeline comprises a plurality of air return pipes, a second gap for the circulation of tows is formed between two adjacent air return pipes, and the tows pass through the first gap and the second gap in a reciprocating manner;
the oxidation cavity is divided into a first oxidation cavity and a second oxidation cavity; the hot air circulation system also comprises a diverter arranged in the blowing pipe; the first oxidation cavity and the second oxidation cavity are symmetrically distributed on two sides of the blowing pipe, the blowing pipe is provided with a main pipe and two branch pipes, the main pipe of the blowing pipe is communicated with the air inlet pipe, the two branch pipes of the blowing pipe are respectively communicated with the first oxidation cavity and the second oxidation cavity, the flow divider is positioned at the junction of the main pipe and the two branch pipes and is in a V shape, the flow divider is provided with two flow dividing surfaces, one flow dividing surface faces one branch pipe, the other flow dividing surface faces the other branch pipe, the wind direction of the first oxidation cavity is opposite to the wind direction of the second oxidation cavity, return air pipelines are arranged at two ends in the furnace body, and the outlet of the first oxidation cavity and the outlet of the second oxidation cavity are respectively communicated with the return air pipelines at two ends in the furnace body;
a first oxidation cavity of a certain set of hot air circulation system is communicated with a return air cavity of the same set of hot air circulation system through a return air pipeline at one end in the furnace body, and a second oxidation cavity of the set of hot air circulation system is communicated with a return air cavity of an adjacent hot air circulation system through a return air pipeline at the other end in the furnace body;
the number of the hot air circulation systems is equal to the number of the hot air circulation systems, each two hot air circulation systems are provided with a circulation group, each circulation group is mutually independent, two hot air circulation systems of one circulation group are adjacent, in one circulation group, a first oxidation cavity of one hot air circulation system is communicated with a return air cavity of the same hot air circulation system through a return air pipeline at one end in the furnace body, and a second oxidation cavity of the hot air circulation system is communicated with a return air cavity of the other hot air circulation system through a return air pipeline at the other end in the furnace body.
2. A parallel oxidation oven of silk bundle of realizing operating temperature, its characterized in that: comprises a furnace body and at least two sets of hot air circulation systems; at least one set of return air pipeline is arranged in all the hot air circulation systems;
each set of hot air circulation system comprises a circulating fan, an air inlet pipe connected with the output end of the circulating fan, a blowing pipeline communicated with the outlet of the air inlet pipe, an oxidation cavity and a return air cavity; the circulating fan, the air inlet pipe, the air blowing pipeline, the oxidation cavity and the return air cavity are positioned in the furnace body;
the air return cavity is internally provided with a filter screen and a heater, the air blowing pipeline and the air return pipeline are respectively positioned at the inlet and the outlet of the oxidation cavity, and along the circulation path of air, the air sequentially passes through the circulating fan, the air inlet pipe, the air blowing pipeline, the oxidation cavity, the air return pipeline, the filter screen in the air return cavity and the heater in the air return cavity; the blowing pipeline comprises a plurality of blowing pipes, and a first gap for the circulation of tows is reserved between two adjacent blowing pipes; the air return pipeline comprises a plurality of air return pipes, a second gap for the circulation of tows is formed between two adjacent air return pipes, and the tows pass through the first gap and the second gap in a reciprocating manner;
the oxidation cavity is divided into a first oxidation cavity and a second oxidation cavity; the hot air circulation system also comprises a diverter communicated with the air inlet pipe; the diverter is provided with two outlets, the two outlets of the diverter are respectively communicated with the first oxidation cavity and the second oxidation cavity through blowpipes, the first oxidation cavity and the second oxidation cavity are symmetrically distributed on two sides of the diverter, the wind direction of the first oxidation cavity is opposite to that of the second oxidation cavity, two ends in the furnace body are respectively provided with return air pipelines, and the outlets of the first oxidation cavity and the outlets of the second oxidation cavity are respectively communicated with the return air pipelines at two ends in the furnace body;
a first oxidation cavity of a certain set of hot air circulation system is communicated with a return air cavity of the same set of hot air circulation system through a return air pipeline at one end in the furnace body, and a second oxidation cavity of the set of hot air circulation system is communicated with a return air cavity of an adjacent hot air circulation system through a return air pipeline at the other end in the furnace body;
the number of the hot air circulation systems is equal to the number of the hot air circulation systems, each two hot air circulation systems are provided with a circulation group, each circulation group is mutually independent, two hot air circulation systems of one circulation group are adjacent, in one circulation group, a first oxidation cavity of one hot air circulation system is communicated with a return air cavity of the same hot air circulation system through a return air pipeline at one end in the furnace body, and a second oxidation cavity of the hot air circulation system is communicated with a return air cavity of the other hot air circulation system through a return air pipeline at the other end in the furnace body.
3. A tow parallel oxidation oven for achieving multiple working temperatures according to any one of claims 1 or 2, wherein: the hot air circulation system also comprises an induced draft hood; the inlet of the induced draft hood is communicated with the outlet of the air inlet pipe, and the outlet of the induced draft hood is communicated with the inlet of the air blowing pipeline.
4. A tow parallel oxidation oven for achieving multiple working temperatures according to any one of claims 1 or 2, wherein: the hot air circulation system also comprises a driving motor; the circulating fan is positioned in the return air cavity, the driving motor is positioned outside the furnace body, the output end of the driving motor is connected with the circulating fan, and the blowing directions of the circulating fans of two adjacent hot air circulating systems are opposite.
5. An oxidation apparatus utilizing the strand parallel oxidation oven of any one of claims 1 or 2 for achieving multiple operating temperatures, characterized in that: the oxidation equipment is provided with a plurality of filament bundles which sequentially pass through all the oxidation equipment;
each oxidation device comprises a parallel oxidation furnace unit, a first reciprocating godet assembly, a second reciprocating godet assembly and a plurality of tension control assemblies, wherein the first reciprocating godet assembly and the second reciprocating godet assembly are respectively arranged at two ends of the parallel oxidation furnace unit; the parallel oxidation furnace unit comprises at least one tow parallel oxidation furnace; the tension control assembly is used for connecting the tows entering from the initial inlet of the tow parallel oxidation furnace or the tows exiting from the tail end outlet of the tow parallel oxidation furnace;
the return air pipeline is arranged in the furnace body, all second gaps in the same set of return air pipeline are sequentially distributed from bottom to top, all first gaps in the same set of blowing pipeline are sequentially distributed from bottom to top, the first reciprocating godet assembly is provided with a plurality of first turning roller groups which are distributed from bottom to top, the second reciprocating godet assembly is provided with a plurality of second turning roller groups which are distributed from bottom to top, all first turning roller groups, all first gaps, all second gaps and all second turning roller groups are uniformly distributed from bottom to top in a one-to-one correspondence manner, and tows pass through the first gaps and the second gaps at the bottom and then pass through the first gaps and the second gaps at the top after being turned 180 degrees by the first turning roller groups or the second turning roller groups.
6. The oxidation apparatus for a parallel oxidation oven for filament bundles capable of operating at a temperature as recited in claim 5, wherein: the oxidation apparatus further comprises a mounting frame; the first reciprocating godet assembly, the second reciprocating godet assembly and the tension control assembly are all installed on the installation frame, the filament bundle is wound on the first turning roller set and the second turning roller set, the winding-in point and the winding-out point of the filament bundle and the first turning roller set are all as high as the first gap, and the winding-in point and the winding-out point of the filament bundle and the second turning roller set are all as high as the first gap.
7. The oxidation apparatus for a parallel oxidation oven for filament bundles having multiple operating temperatures as defined in claim 6, wherein: several oxidizing apparatuses are arranged in series in the horizontal direction, and the tow parallel oxidizing furnaces of each parallel oxidizing furnace unit are stacked in the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910379440.5A CN109972234B (en) | 2019-05-08 | 2019-05-08 | Tow parallel oxidation furnace and oxidation equipment capable of realizing multi-working-temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910379440.5A CN109972234B (en) | 2019-05-08 | 2019-05-08 | Tow parallel oxidation furnace and oxidation equipment capable of realizing multi-working-temperature |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109972234A CN109972234A (en) | 2019-07-05 |
| CN109972234B true CN109972234B (en) | 2024-01-09 |
Family
ID=67073248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910379440.5A Active CN109972234B (en) | 2019-05-08 | 2019-05-08 | Tow parallel oxidation furnace and oxidation equipment capable of realizing multi-working-temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109972234B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387602B (en) * | 2019-08-16 | 2024-06-25 | 广州赛奥碳纤维技术有限公司 | Pre-oxidation equipment of polyacrylonitrile precursor wire head and wire head connecting method |
| CN110578189B (en) * | 2019-09-18 | 2024-03-15 | 浙江精工集成科技股份有限公司 | Return air case and pre-oxidation stove for pre-oxidation stove |
| CN110578186B (en) * | 2019-09-18 | 2024-03-15 | 浙江精工集成科技股份有限公司 | Pre-oxidation furnace with end-to-end blowing structure |
| CN110670172B (en) * | 2019-09-19 | 2022-06-07 | 大同新成新材料股份有限公司 | Carbon fiber pre-oxidation processing device and method |
| CN111206304B (en) * | 2020-02-25 | 2023-07-28 | 广州赛奥碳纤维技术股份有限公司 | Double parallel high-efficiency pre-oxidation furnace |
| CN111394835A (en) * | 2020-05-12 | 2020-07-10 | 天华化工机械及自动化研究设计院有限公司 | Carbon fiber oxidation furnace |
| CN114164524A (en) * | 2020-09-11 | 2022-03-11 | 宝武炭材料科技有限公司 | Efficient pre-oxidation method of general-purpose asphalt-based non-woven felt |
| CN114164523B (en) * | 2020-09-11 | 2023-08-04 | 宝武碳业科技股份有限公司 | High-efficient preoxidation equipment of general level pitch base nonwoven felt |
| CN114395825B (en) * | 2022-02-11 | 2022-08-12 | 新创碳谷控股有限公司 | Pre-oxidation furnace suitable for multi-specification fibers and control method thereof |
| CN116180275B (en) * | 2023-03-03 | 2023-10-20 | 元峻机械设备(浙江)有限公司 | Carbon fiber preparation process and oxidation furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004115983A (en) * | 2002-09-30 | 2004-04-15 | Toho Tenax Co Ltd | Heat treatment oven for making flame-resistant and method for heat treatment for making flame-resistant |
| CN102758270A (en) * | 2012-06-21 | 2012-10-31 | 合肥日新高温技术有限公司 | High-performance carbon fiber pre-oxidation furnace |
| CN105143533A (en) * | 2013-04-26 | 2015-12-09 | 伊利诺斯工具制品有限公司 | Fiber oxidation oven with multiple independently controllable heating systems |
| CN106637516A (en) * | 2016-12-21 | 2017-05-10 | 湖南顶立科技有限公司 | Hot air circulating system of pre-oxidation oven |
| CN210104136U (en) * | 2019-05-08 | 2020-02-21 | 广州赛奥碳纤维技术有限公司 | Parallel oxidation furnace and oxidation equipment for realizing multiple working temperatures of tows |
-
2019
- 2019-05-08 CN CN201910379440.5A patent/CN109972234B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004115983A (en) * | 2002-09-30 | 2004-04-15 | Toho Tenax Co Ltd | Heat treatment oven for making flame-resistant and method for heat treatment for making flame-resistant |
| CN102758270A (en) * | 2012-06-21 | 2012-10-31 | 合肥日新高温技术有限公司 | High-performance carbon fiber pre-oxidation furnace |
| CN105143533A (en) * | 2013-04-26 | 2015-12-09 | 伊利诺斯工具制品有限公司 | Fiber oxidation oven with multiple independently controllable heating systems |
| CN106637516A (en) * | 2016-12-21 | 2017-05-10 | 湖南顶立科技有限公司 | Hot air circulating system of pre-oxidation oven |
| CN210104136U (en) * | 2019-05-08 | 2020-02-21 | 广州赛奥碳纤维技术有限公司 | Parallel oxidation furnace and oxidation equipment for realizing multiple working temperatures of tows |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109972234A (en) | 2019-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109972234B (en) | Tow parallel oxidation furnace and oxidation equipment capable of realizing multi-working-temperature | |
| CN101798720B (en) | Aramid fiber III on-line thermal treating process and device thereof | |
| US4610860A (en) | Method and system for producing carbon fibers | |
| JP6713994B2 (en) | Continuous carbonization method and carbon fiber production system | |
| JP5487662B2 (en) | Heat treatment furnace, flameproof fiber bundle, and method for producing carbon fiber | |
| CN111394835A (en) | Carbon fiber oxidation furnace | |
| JP5037978B2 (en) | Flameproof furnace and flameproofing method | |
| CN210104136U (en) | Parallel oxidation furnace and oxidation equipment for realizing multiple working temperatures of tows | |
| CN114481371B (en) | Lateral blowing oxidation furnace device | |
| CN107848866B (en) | Method for manufacturing glass fibre materials comprising a sizing step and a desizing step, and installation suitable for implementing said method | |
| CN203487290U (en) | Carbon fiber preoxidation furnace | |
| CN102691135B (en) | Preparation method of asphalt base carbon staple fiber | |
| CN212128364U (en) | Pre-oxidation furnace forming laminar flow even wind field | |
| KR20210088550A (en) | Process for producing flame-resistant fiber bundles and carbon fiber bundles and flame-resistant furnace | |
| JPH10266023A (en) | Production of polyacrylonitrile-based flame resistant fiber and apparatus therefor | |
| CN207646350U (en) | A kind of pre-oxidation furnace | |
| KR101281192B1 (en) | Apparatus for maunfacturing carbon fiber | |
| JP2002013031A (en) | Method for graphitizing carbon material and apparatus therefor | |
| JP5037977B2 (en) | Flameproofing furnace and method for producing flameproofed fiber | |
| JP5740887B2 (en) | Flame resistant furnace heating medium heating system | |
| CN201193259Y (en) | Oxidation furnace | |
| KR101296718B1 (en) | A manufacture apparatus for carbon fiber | |
| JPH0748721A (en) | Method and equipment for high-speed oxidation of organic fiber | |
| JP2971498B2 (en) | Flame-resistant treatment equipment | |
| JP2004197239A (en) | Flame resisting treatment furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 511356 2nd floor, No.5 Huafeng Road, Yonghe Economic Zone, Guangzhou Economic and Technological Development Zone, Guangdong Province Applicant after: Guangzhou sail Carbon Fiber Technology Co.,Ltd. Address before: 511356 2nd floor, No.5 Huafeng Road, Yonghe Economic Zone, Guangzhou Economic and Technological Development Zone, Guangdong Province Applicant before: ATA CARBON FIBER TECH. GUANGZHOU CO.,LTD. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |