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Efficient pre-oxidation equipment for general-grade asphalt-based non-woven felt

A pitch-based, non-woven felt technology, applied in the direction of textiles, papermaking, fiber chemical characteristics, etc., can solve the problems of poor pre-oxidation effect of PAN-based carbon fiber pre-oxidation furnace, and achieve the effect of improving pre-oxidation efficiency and efficiency

Pending Publication Date: 2022-03-11
BAOWU CHARCOAL MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a pre-oxidation equipment for general-purpose asphalt-based non-woven mats. By improving the hot-air circulation pre-oxidation furnace in the prior art, the up-and-down alternate hot-air circulation is adopted to solve the problem of PAN-based carbon fiber in the prior art. Technical problem of poor pre-oxidation effect in pre-oxidation furnace

Method used

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  • Efficient pre-oxidation equipment for general-grade asphalt-based non-woven felt
  • Efficient pre-oxidation equipment for general-grade asphalt-based non-woven felt

Examples

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no. 1 example

[0023] as attached figure 1 As shown, a pre-oxidation equipment for general-purpose asphalt-based non-woven felt, a pre-oxidation furnace in which hot air circulates from bottom to top, includes a pre-oxidation furnace body, and an air inlet 8 and an air outlet 9 are fixedly installed on the pre-oxidation furnace body. Enter the pre-oxidation furnace body from the air inlet, and discharge from the air outlet of the pre-oxidation furnace body.

[0024] The body of the pre-oxidation furnace includes a furnace body 1, a wind hood 2 fixedly installed on the top of the furnace body, a distribution plate 3 fixedly installed at the lower end of the wind hood, a wire pressing plate 4 fixedly installed under the distribution plate 3, and a wire pressing plate 4 fixedly installed on the bottom of the wire pressing The mesh chain device below the plate 4, the windshield 5 fixedly installed at the inner bottom of the furnace body 1, the perforated plate 6 fixedly installed at the air inle...

no. 2 example

[0035] as attached figure 2 As shown, the second embodiment of the present invention is similar to the first embodiment except for the following design changes. A pre-oxidation equipment for general-purpose asphalt-based non-woven felt, a pre-oxidation furnace in which hot air circulates from top to bottom, including a pre-oxidation furnace body, and an air inlet 8, an air outlet 9, and an air inlet 8 are fixedly installed on the pre-oxidation furnace body It is fixedly installed on the top of the side wall of the furnace body 1, and the air outlet 9 is fixedly installed on the bottom end of the side wall of the furnace body 1.

[0036] The body of the pre-oxidation furnace includes a furnace body 1, a windshield 2 fixedly installed at the bottom of the furnace body, a distribution plate 3 fixedly installed at the bottom of the windshield, a wire pressing plate 4 fixedly installed above the distribution plate 3, and a wire pressing plate fixedly installed on the bottom of the...

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Abstract

The invention discloses pre-oxidation equipment for general-grade pitch-based non-woven felt in the technical field of carbon fiber production equipment.The pre-oxidation equipment for the general-grade pitch-based non-woven felt comprises a pre-oxidation furnace body, an air inlet and an air outlet are formed in the pre-oxidation furnace body, and the pre-oxidation furnace body comprises a furnace body; the air cover is arranged in the furnace body, the distribution plate is arranged at the bottom end of the air cover, the net chain device is arranged in the furnace body, the wire pressing plate is arranged above the net chain device, the air baffle is arranged in the furnace body, the perforated plate is arranged at the air inlet, and the filter plate is arranged at the air outlet. According to the pre-oxidation equipment, the pre-oxidation efficiency of the pre-oxidation equipment is greatly improved, and the phenomena of fusion, hardening and even combustion of pre-oxidized filaments in the carbonization process are avoided.

Description

technical field [0001] The invention relates to the technical field of carbon fiber production equipment, and more specifically, to a pre-oxidation equipment for general-purpose pitch-based non-woven felt. Background technique [0002] Since the development of pitch-based carbon fiber, pitch-based carbon fiber has become a very important type in the field of carbon fiber. It has replaced viscose-based carbon fiber and has become the second largest category of carbon fiber after PAN-based carbon fiber. Due to the The source of raw materials is very wide and the price is relatively low, so the pitch-based carbon fiber will usher in rapid development. The pitch-based carbon fiber can be divided into two types: general-grade carbon fiber short fiber and mesophase pitch carbon fiber long fiber. The general-purpose carbon fiber raw material is isotropic Asphalt, while the raw material of mesophase pitch-based carbon fiber is anisotropic pitch. The preparation process of the above-...

Claims

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Application Information

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IPC IPC(8): D01F9/12D01F9/145
CPCD01F9/12D01F9/145
Inventor 袁绪路陈炜张超盛乔瑜单长春
Owner BAOWU CHARCOAL MATERIAL TECH CO LTD
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