CN202298094U - PAN (polyacrylonitrile) pre-oxidation fibrofelt - Google Patents
PAN (polyacrylonitrile) pre-oxidation fibrofelt Download PDFInfo
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- CN202298094U CN202298094U CN2011204391449U CN201120439144U CN202298094U CN 202298094 U CN202298094 U CN 202298094U CN 2011204391449 U CN2011204391449 U CN 2011204391449U CN 201120439144 U CN201120439144 U CN 201120439144U CN 202298094 U CN202298094 U CN 202298094U
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- pan
- oxidation
- fiber felt
- fibrofelt
- felt
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Abstract
The utility model relates to a PAN (polyacrylonitrile) pre-oxidation fibrofelt. The PAN pre-oxidation fibrofelt is arranged in a furnace body of a heating furnace, and is in a net-shaped structure formed in a mode that PAN pre-oxidation fiber is subjected to airflow net forming, wherein the weaving net density of the net-shaped structure is within 0.16g/cm<2>-2.5g/cm<2>. For the PAN pre-oxidation fibrofelt, the PAN pre-oxidation fiber is taken as the raw material, the airflow net forming technology or the combination of the airflow net forming and the cross lapping are adopted, a soft felt prefabricated body with greater thickness range can be weaved, so that the thermal insulation property of the PAN pre-oxidation fibrofelt is improved, the problem that the mechanical carding and net forming of the PAN pre-oxidation fiber is difficult is overcome, the traditional oxidation process is saved, the production cycle is greatly shortened, the possibility of felt weaving by adopting the PAN pre-oxidation fiber is realized, and the application is wider.
Description
Technical field
The utility model relates to the preoxidized fiber felt technical field, relates in particular to a kind of PAN (polyacrylonitrile) preoxidized fiber felt.
Background technology
At present, the method for making preoxidized fiber felt has two kinds: a kind of is to be woven into felt earlier, reoxidizes; Another kind is directly to be woven into felt with pre-oxidized fibers.
At present, major part all adopts first method, and first method adopts mechanical carding to become net; Its advantage is that to knit felt convenient, and is consuming time longer in oxidizing process but its shortcoming is a felt after the braiding, and knit the thickness of felt can not too thick (being generally 10mm-20mm); Otherwise all oxidations of the felt of being knitted; That is to say, knit the thicker of felt, the fiber of felt the inside difficulty more is oxidized to.
The utility model content
The main purpose of the utility model is to provide a kind of and is widely used and the PAN preoxidized fiber felt of good heat insulating.
In order to achieve the above object, the utility model proposes a kind of PAN preoxidized fiber felt, and said PAN preoxidized fiber felt is arranged in the body of heater of heating furnace, and said PAN preoxidized fiber felt is the network structure that the PAN pre-oxidized fibers forms through air lay; Said cancellated mesh density is 0.16g/cm
2～2.5g/cm
2
Preferably, said PAN preoxidized fiber felt be the PAN pre-oxidized fibers through air lay after the network structure that forms of cross folding.
Preferably, said PAN preoxidized fiber felt thickness is 3mm～60mm.
Preferably, said PAN pre-oxidized fibers length is 50mm～120mm.
A kind of PAN preoxidized fiber felt that the utility model proposes; With the preparatory oxygen fiber of PAN is raw material, adopts air lay or air lay to combine the cross lapping technology to process preoxidized fiber felt, can weave the soft felt precast body of bigger thickness range; Improved the heat-insulating property of PAN preoxidized fiber felt; And overcome the difficult problem of the preparatory oxygen fibre machinery of PAN carding, and saved traditional oxidizing process, shortened the production cycle greatly; Making the PAN pre-oxidized fibers knit felt becomes possibility, uses more extensive.
Description of drawings
Fig. 1 is the network structure sketch map of the utility model PAN preoxidized fiber felt;
Fig. 2 is the structural representation of the random web-laying equipment of the utility model PAN preoxidized fiber felt manufacturing use.
Clearer for the technical scheme that makes the utility model, clear, will combine accompanying drawing to do further to detail below.
The specific embodiment
The utility model embodiment solution mainly is: with the preparatory oxygen fiber of PAN is raw material; Adopt air lay or air lay to combine the cross lapping technology to process preoxidized fiber felt; Can weave the soft felt precast body of bigger thickness range; Improve the heat-insulating property of PAN preoxidized fiber felt, and overcome the difficult problem of the preparatory oxygen fibre machinery of PAN carding.
As shown in Figure 1; The utility model preferred embodiment proposes a kind of PAN preoxidized fiber felt, and this PAN preoxidized fiber felt 101 is applied on the various high-temperature heaters, as insulation material; Specifically be arranged in the body of heater of heating furnace; PAN preoxidized fiber felt 101 is a network structure in the present embodiment, and this cancellated mesh density is to be 0.16g/cm2～2.5g/cm2, and thickness can reach 3mm～60mm.
The above-mentioned network structure of PAN preoxidized fiber felt 101 can be processed through the air lay technology in the present embodiment, also can combine the cross lapping technology to process through the air lay technology.
Wherein, the air lay technology can adopt existing random web-laying equipment to realize, the cross lapping technology can realize through existing cross lapping machine.
Particularly, as shown in Figure 2, Fig. 2 is the structural representation of the random web-laying equipment of manufacturing the utility model PAN preoxidized fiber felt.This random web-laying equipment comprises: transverse fan 1, worker rollers 2, transfer roller 3, main cylinder 4, feeding roller 5, feed plate 6, suction chamber 7 and lace curtaining 8.
Random web-laying equipment is that combing function and the even dissipating bind of air-flow are lumped together.Its combing segment is made up of feeding roller 5, feed plate 6, a pair of worker rollers 2, a pair of transfer roller 3 and main cylinder 4.The course of work of random web-laying equipment is with after the fiber feeding, after main cylinder 4 combings, is combined with sucktion fan by transverse fan 1, and the fibre deposition on the main cylinder 4 to lace curtaining 8, is formed mixed and disorderly fiber web.
The operation principle of random web-laying equipment is in the present embodiment:
The PAN pre-oxidized fibers of predetermined length is put into feed plate 6; Bring main cylinder 4 into by feeding roller 5 then; Main cylinder 4 rotations drive the PAN pre-oxidized fibers and transfer to noil mouth (not shown) through two pairs of worker rollers 2 and transfer roller 3; At the PAN of noil mouth pre-oxidized fibers, evenly dropping under the effect of transverse fan 1 on the suction chamber 7, export the lace curtaining 8 of uniform and delicate again through roller.
Further, have more performance, can the PAN preoxidized fiber felt of random web-laying equipment output be carried out the cross folding moulding through cross lapping machine in order to make the PAN preoxidized fiber felt.
Cross lapping machine is mainly used in the fiber web with carding machine output, carries out cross folding, and laying becomes the multi-layered web of certain thickness and width uniformly, supplies next procedure to use.
Be characterized in: planar shaping, noil are apart from weak point, and lapping is even, and next procedure is carried in the pressurization back.Scalable between each lapping, the frequency conversion switching-over is back and forth adopted in the differential compensation, and end curtain goes up and down and the equal scalable of lapping width.
Through above-mentioned net-forming technology, can adopt length is that the PAN pre-oxidized fibers of 50mm～120mm is made into the PAN preoxidized fiber felt in the present embodiment, and its manufacture craft process is:
1, selects preparatory oxygen silk.Selecting length is the PAN pre-oxidized fibers of 50mm～120mm.The characteristics of this PAN pre-oxidized fibers are smooth surfaces, do not have to curl, but the direct cohesive force of PAN pre-oxidized fibers are poor, and therefore brittle failure easily is difficult for mechanical knitmesh, but can utilizes the air lay technology to overcome the weakness of PAN pre-oxidized fibers itself.
2, felt.With selected PAN pre-oxidized fibers feeding random web-laying equipment, after main cylinder 4 combings, combine with induced-draught fan by transverse fan 1, the PAN pre-oxidized fibers on the main cylinder 4 is agglomerated on the lace curtaining 8, form mixed and disorderly fiber web.Then, with the mixed and disorderly fiber web of random web-laying equipment braiding, through cross lapping machine carding machine output fiber web, carry out cross folding, laying becomes the multi-layered web of certain thickness and width uniformly.
Above operation promptly makes the PAN preoxidized fiber felt after accomplishing.
Present embodiment adopts the air lay technology, has solved problems such as the PAN pre-oxidized fibers is disconnected easily, one-tenth net difficulty, and making direct employing PAN pre-oxidized fibers knit felt becomes possibility.
In addition, adopt and be crossed as network technology, utilize the fiber web of carding machine output, carry out cross folding, can customize out the product of all thickness and fabric width, for demand.
Compare prior art, the utility model embodiment PAN preoxidized fiber felt is a raw material with the preparatory oxygen fiber of PAN; Adopt air lay or air lay to combine the cross lapping technology to process preoxidized fiber felt; Can weave the soft felt precast body of bigger thickness range, improve the heat-insulating property of PAN preoxidized fiber felt, and overcome the difficult problem of the preparatory oxygen fibre machinery of PAN carding; Saved traditional oxidizing process; Shortened the production cycle greatly, making the PAN pre-oxidized fibers knit felt becomes possibility, uses more extensive.
The above is merely the preferred embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the utility model.
Claims (4)
1. a PAN preoxidized fiber felt is characterized in that, said PAN preoxidized fiber felt is arranged in the body of heater of heating furnace, and said PAN preoxidized fiber felt is the network structure that the PAN pre-oxidized fibers forms through air lay; Said cancellated mesh density is 0.16g/cm
2～2.5g/cm
2
2. PAN preoxidized fiber felt according to claim 1 is characterized in that, said PAN preoxidized fiber felt be the PAN pre-oxidized fibers through air lay after the network structure that forms of cross folding.
3. PAN preoxidized fiber felt according to claim 1 and 2 is characterized in that, said PAN preoxidized fiber felt thickness is 3mm～60mm.
4. PAN preoxidized fiber felt according to claim 3 is characterized in that, said PAN pre-oxidized fibers length is 50mm～120mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204391449U CN202298094U (en) | 2011-11-08 | 2011-11-08 | PAN (polyacrylonitrile) pre-oxidation fibrofelt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204391449U CN202298094U (en) | 2011-11-08 | 2011-11-08 | PAN (polyacrylonitrile) pre-oxidation fibrofelt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202298094U true CN202298094U (en) | 2012-07-04 |
Family
ID=46367028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204391449U Expired - Lifetime CN202298094U (en) | 2011-11-08 | 2011-11-08 | PAN (polyacrylonitrile) pre-oxidation fibrofelt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202298094U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389068A (en) * | 2014-09-15 | 2015-03-04 | 荣成炭谷有限公司 | Preparation method for novel decorative material |
| CN109487434A (en) * | 2018-11-26 | 2019-03-19 | 镇江立达纤维工业有限责任公司 | A kind of sound-absorbing material and preparation method thereof based on carbon fiber |
-
2011
- 2011-11-08 CN CN2011204391449U patent/CN202298094U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389068A (en) * | 2014-09-15 | 2015-03-04 | 荣成炭谷有限公司 | Preparation method for novel decorative material |
| CN109487434A (en) * | 2018-11-26 | 2019-03-19 | 镇江立达纤维工业有限责任公司 | A kind of sound-absorbing material and preparation method thereof based on carbon fiber |
| CN109487434B (en) * | 2018-11-26 | 2021-04-13 | 镇江立达纤维工业有限责任公司 | Sound-absorbing material based on carbon fibers and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN GOLD STONE TECHNOLOGY CO., LTD. Free format text: FORMER NAME: GOLD STONE PRECISION TECHNOLOGY(SHENZHEN)CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 518000, Shenzhen, Guangdong, Baoan District Fuyong Street on the south side of the first floor of Great Ocean Road 4, two floor East Patentee after: Shenzhen Gold Stone Technology Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Baoan District manhole Street third Jiao Sha Tau Tong industrial area ranked first, one to two Patentee before: Gold stone precision technology (Shenzhen) Co., Ltd. |
|
| C53 | Correction of patent for invention or patent application | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN GOLD STONE TECHNOLOGY STOCK CO., LTD. Free format text: FORMER NAME: SHENZHEN GOLD STONE TECHNOLOGY CO., LTD. |
|
| CB03 | Change of inventor or designer information |
Inventor after: Zhu Baixi Inventor after: Hou Zhenhua Inventor after: Long Limei Inventor before: Long Limei |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LONG LIMEI TO: ZHU BAIXI HOU ZHENHUA LONG LIMEI |
|
| CP03 | Change of name, title or address |
Address after: Baoan District Songgang street, Shenzhen city 518105 Guangdong province with rich industrial zone safety run road No. 2 Patentee after: Shenzhen Gold Stone Technology Co., Ltd Address before: 518000, Shenzhen, Guangdong, Baoan District Fuyong Street on the south side of the first floor of Great Ocean Road 4, two floor East Patentee before: Shenzhen Gold Stone Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |