CN201193261Y - Fresh air feed device for preoxidation furnace - Google Patents
Fresh air feed device for preoxidation furnace Download PDFInfo
- Publication number
- CN201193261Y CN201193261Y CNU2008200192497U CN200820019249U CN201193261Y CN 201193261 Y CN201193261 Y CN 201193261Y CN U2008200192497 U CNU2008200192497 U CN U2008200192497U CN 200820019249 U CN200820019249 U CN 200820019249U CN 201193261 Y CN201193261 Y CN 201193261Y
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- CN
- China
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- air supply
- fresh air
- supply device
- flanning
- lower jaw
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Abstract
The utility model relates to a fresh air supply device of a pre-oxidation furnace, which belongs to the field of carbon fiber production equipment. The fresh air supply device is provided with a base, a roller, an exhaust pipe, a circulating fan, a return air pipe and an air supply pipe; the fresh air supply device is added to the return air pipe connected with the circulating fan; the upper hinge and the lower hinge of the fresh air supply device are provided with three synclastic flanning lugs; the middle flanning lugs are welded with rotating shafts in the grooves of the lugs; the upper hinge and the lower hinge drive a connecting rod mechanism to open or close an opening by a handle; one flanning lug of the upper hinge and one flanning lug of the lower hinge are propped against retaining corner irons. The fresh air supply device can ensure the evenness of the temperature filed of a pre-oxidation furnace heating system, and the temperature gradient distribution is reasonable.
Description
Technical field
The utility model is a kind of carbon fiber production equipment, and the pre-oxidation equipment in the carbon fiber production process send aeration device specifically.
Background technology
As everyone knows, pre-oxidation equipment (oxidation furnace) is to be a kind of production equipment of making pre-oxidized fibers in the oxidation furnace of air through high-temperature oxydation at medium.
The purpose of pre-oxidation is to change heat-resisting trapezoidal-structure into after making the linear macromolecule chain warp pre-oxidation treatment of PAN precursor, do not melt and do not fire, stand high temperature cabonization and keep fibre morphology, thereby obtain the high-quality carbon fiber, the key equipment of realizing this conversion is exactly a pre-oxidation furnace.The process of pre-oxidation is very big to the quality and the yield effect of carbon fiber.Studies show that pre-oxidation furnace at first will satisfy the demand of process conditions: promptly the temperature field of heating system is even, and temperature gradient distribution is reasonable, wind direction is preferably perpendicular to tow, wind speed is preferably in more than the 0.5m/s, and the drafting system low-temperature space is implemented just to lead, and negative leading implemented in the high-temperature region.
Having a kind of abroad is can guarantee the even distribution on fibre bundle of air-flow and temperature to a certain extent with horizontal blast type design, laterally the blast type oxidation furnace uses the air lock system that has patent to come airtight baking oven end, but air lock unavoidably has cold air to enter in the stove from the bottom, has influenced isothermal region.
Summary of the invention
In order to solve the deficiency of above-mentioned existing equipment technology, the utility model provides a kind of pre-oxidation furnace to send aeration device, and this air-supply arrangement can guarantee that the temperature field of pre-oxidation furnace heating system is even, and temperature gradient distribution is reasonable.
The utility model adopts following technical solution: be provided with base, roller, exhaust airduct, circulating fan, return air duct and air supply line, with return air duct that circulating fan links to each other on add that is sent an aeration device, send last hinge, each folding of lower jaw of aeration device that 3 equidirectional splayed projectioies are arranged, middle splayed projection welds together with separately rotating shaft in its groove, last hinge, lower jaw are opened or closing any opening by a handle drivening rod mechanism, and last hinge, lower jaw respectively have a splayed projection to be pressed against with the retaining angle bar.
The beneficial effects of the utility model are: with return air duct that circulating fan links to each other on add a device that send fresh air, place, blower fan inlet scoop is negative pressure, extraneous cold air is sucked into return air duct, before going back the no show air supply line, electric heater is arranged, thereby do not destroy the interior isothermal region of stove, also reached the purpose of giving oxygen supply in the stove.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 send the structural representation of aeration device for the utility model pre-oxidation furnace.
Fig. 2 is for sending the structural representation of aeration device 3 among the utility model Fig. 1.
Fig. 3 is the left view that send aeration device 3.
Fig. 4 send the structural representation of going up hinge 15, lower jaw 15 in the aeration device 3.
In the accompanying drawing: 1, fiber; 2, circulating fan; 3, send aeration device; 4, exhaust airduct; 5, air supply line; 6, return air duct; 7, body of heater; 8, air lock assembly; 9, gland; 10, thin arc plate; 11, connecting rod; 12, connecting rod; 13, index dial; 14, handle; 15, go up hinge; 16, lower jaw; 17, sealing gasket; 18, retaining angle bar.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, to help understanding content of the present utility model.
As shown in Figure 1, the utility model is provided with base, roller, exhaust airduct 4, circulating fan 2, return air duct 6 and air supply line 5, the intracavity inter-connection of exhaust airduct 4 and body of heater 7, circulating fan 2, return air duct 6, air supply line 5 are connected and are used for blowing to body of heater 7 inner chambers, the two ends of body of heater 7 all are equipped with the rotation roller of air lock assembly 8 and a plurality of axially parallels, and fiber 1 passes body of heater 7 and is wrapped on the roller at two ends, body of heater 7 left and right sides.With return air duct 6 that circulating fan 2 links to each other on add that is sent an aeration device 3, send last hinge 15, lower jaw 16 each folding of aeration device 3 that 3 equidirectional splayed projectioies are arranged, middle splayed projection welds together with separately rotating shaft in its groove, last hinge 15, lower jaw 16 are opened or closing any opening by a handle 14 drivening rod mechanisms, and last hinge 15, lower jaw 16 respectively have a splayed projection to be pressed against with retaining angle bar 18.Send aeration device 3 to open or closing any opening by a handle 14 drivening rod mechanisms.By the size of last hinge 15, regulate the quantity of sending into the fresh air in the body of heater 7 with this with lower jaw 16 subtended angles.Last hinge 15, lower jaw 16 each folding have 3 equidirectional splayed projectioies, and middle splayed projection welds together with separately rotating shaft in its groove.When hermetically sealed opening, all splayed bump openings are towards same direction, and last hinge 15, lower jaw 16 respectively have a splayed projection to be pressed against with retaining angle bar 18, and each remaining splayed projection snaps together mutually in addition.In two splayeds projection that is pressed against with retaining angle bar 18 and two the splayed projectioies that snap together mutually one, all use gland 9 sealing gasket 17 to be fixed in the groove of their splayed projectioies separately, and when guaranteeing hermetically sealed opening, sealing gasket 17 is compacted.When installing hinge 15, lower jaw 16, guarantee when rotary handle 14, by the drive of connecting rod 11 with connecting rod 12, open angle symmetry.Thin arc plate 10 when requiring sealed open, is easy to realize abutting against with last hinge 15, lower jaw 16.When requiring certain amount of sending into the fresh air device to be zero, can regulate upper and lower retaining angle bar 18 and thin arc plate 10 and last hinge 15, lower jaw 16 this moment and be close together.After treating that air quantity regulates, can be fastening with bolt handle 14 by the hole on the index dial 13.Use resistant to elevated temperatures sealing gasket 17 to seal at gland 9 that is positioned at rotating shaft terminal and the joint that installs and fixes its plate face.This device also adds screen pack simultaneously and comes the airborne dust of elimination entering the cold air place.
Claims (1)
1. a pre-oxidation furnace send aeration device, be provided with base, roller, the exhaust airduct, circulating fan, return air duct and air supply line, it is characterized in that: with return air duct that circulating fan links to each other on add that is sent an aeration device, send the last hinge of aeration device, each folding of lower jaw has 3 equidirectional splayed projectioies, middle splayed projection welds together with separately rotating shaft in its groove, last hinge, lower jaw is opened or closing any opening last hinge by a handle drivening rod mechanism, lower jaw respectively has a splayed projection to be pressed against with the retaining angle bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200192497U CN201193261Y (en) | 2008-03-26 | 2008-03-26 | Fresh air feed device for preoxidation furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200192497U CN201193261Y (en) | 2008-03-26 | 2008-03-26 | Fresh air feed device for preoxidation furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201193261Y true CN201193261Y (en) | 2009-02-11 |
Family
ID=40392801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200192497U Expired - Lifetime CN201193261Y (en) | 2008-03-26 | 2008-03-26 | Fresh air feed device for preoxidation furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201193261Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094262B (en) * | 2010-12-08 | 2012-05-30 | 北京化工机械有限公司 | Device for carrying out preoxidation on PAN (polyacrylonitrile) precursor joint |
| CN107641852A (en) * | 2017-11-09 | 2018-01-30 | 安徽欣尔特新材料科技有限公司 | A kind of oxidation furnace with the porch for overcoming stack effect |
| CN115467049A (en) * | 2022-09-29 | 2022-12-13 | 江苏鹰游纺机有限公司 | Rotatory rectilinear wind path preliminary oxidation stove of carbon fiber |
-
2008
- 2008-03-26 CN CNU2008200192497U patent/CN201193261Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094262B (en) * | 2010-12-08 | 2012-05-30 | 北京化工机械有限公司 | Device for carrying out preoxidation on PAN (polyacrylonitrile) precursor joint |
| CN107641852A (en) * | 2017-11-09 | 2018-01-30 | 安徽欣尔特新材料科技有限公司 | A kind of oxidation furnace with the porch for overcoming stack effect |
| CN107641852B (en) * | 2017-11-09 | 2024-02-09 | 安徽欣尔特新材料科技有限公司 | Oxidizing furnace with porch for overcoming chimney effect |
| CN115467049A (en) * | 2022-09-29 | 2022-12-13 | 江苏鹰游纺机有限公司 | Rotatory rectilinear wind path preliminary oxidation stove of carbon fiber |
| CN115467049B (en) * | 2022-09-29 | 2024-03-08 | 江苏鹰游纺机有限公司 | Carbon fiber rotary vertical air path pre-oxidation furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090211 |
|
| CX01 | Expiry of patent term |