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Oxidation furnace

An oxidation furnace, oxidation treatment technology, applied in the field of manufacturing carbon fiber

Active Publication Date: 2019-04-16
元峻有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, in "end-to-end" oxidation furnaces it is difficult to prevent the following situation: both contaminated process air reaches outwards into the environment of the oxidation furnace via the pass-through area at the blow-in end of the housing, and cold air flows from the The environment of the oxidation furnace flows into the process chamber in an undesired manner

Method used

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  • Oxidation furnace
  • Oxidation furnace
  • Oxidation furnace

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Embodiment Construction

[0030] figure 1 A vertical sectional view of an oxidation furnace 10 for producing carbon fibers is shown. The oxidation furnace 10 comprises a housing 12 defined by a bottom wall 12a, a top wall 12b and two vertical longitudinal walls (in figure 1 Only one of them can be seen in the longitudinal wall 12 c behind the sectional plane) delimiting the flow-through chamber forming the inner space 14 of the oxidation furnace 10 .

[0031] The housing 12 has an end wall 16a, 16b on its end face, wherein through holes in the form of horizontal inlet slots 18 and outlet slots 20 are arranged alternately from bottom to top in the end walls 16a, Through-holes in the form of horizontal outlet slots 20 and inlet slots 18 are arranged alternately from bottom to top in the end wall 16 b , not all of which are referenced for reasons of clarity. The fibers 22 are guided into the interior 14 via the inlet slot 18 and the outlet slot 20 and are led out of the interior again. The inlet slot 1...

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Abstract

The invention relates to an oxidation furnace for the oxidative treatment of fibres, in particular for producing carbon fibres, said furnace comprising a housing (12) with an inner space (14) which isgas-tight apart from areas (18, 20) for the passage of the fibres (22). A process chamber (28) is located in the inner space (14) of the housing (12). Guide rollers (34) guide the fibres (22) arranged adjacently as a fibre carpet (30) in a serpentine manner through the process chamber (28), the fibre carpet (30) spanning respective planes between opposite guide rollers (34), a partial area (38) of the inner space (14) being defined both above and below said planes. The process chamber (28) extends between a primary blowing device (46a) arranged on a blowing end (44) of the housing (12) and aprimary suction device (50), where a primary gas is blown into a partial area (38) by means of the primary blowing device (46a) in such a way that the process gas flows through the process area (28) in a process flow direction (50). A secondary gas can be blown into the partial area (38) by means of a secondary blowing device (46b), on the side of the primary blowing device (46a) located at a distance from the process chamber (28), using a flow sealing device (84).

Description

technical field [0001] The present invention relates to an oxidation furnace for oxidizing fibers, especially for the manufacture of carbon fibers, the oxidation furnace comprising: [0002] a) a housing which has an inner space which is airtight except for the passage area for the fibres; [0003] b) a process chamber located in the interior space of the housing; [0004] c) guide rollers, which guide the fibers side by side in the form of fiber mats and in a meandering / serpentine manner through the process chamber, wherein the fiber mats each bridge over a plane between mutually opposite guide rollers, wherein defining subspaces of the interior space above and below said plane, respectively; [0005] d) a primary blow-in device and a primary extraction device, which are arranged on the blow-in end of the housing, between which the process chamber extends, wherein the primary blow-in device The device can blow the primary gas into the partial space in such a way that the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02J13/00D01F9/32F27B9/30
CPCD02J13/001F27B9/3005F27B9/28F27D17/004D01F9/32
Inventor L·迈内克
Owner 元峻有限公司