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Double-parallel efficient pre-oxidation furnace

A pre-oxidizing furnace, dual-parallel technology, applied in the chemical characteristics of fibers, textiles and papermaking, etc., can solve problems such as untimely activation of fire protection systems, increased risk of fire, and chaos in the hearth furnace.

Pending Publication Date: 2020-05-29
ATA CARBON FIBER TECH GUANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The more mass of tow entering the pre-oxidation furnace and the faster the working speed, the risk of fire will increase significantly. The current pre-oxidation furnace basically has a simple fire sprinkler system. The main problem is: a small problem triggers the start of the fire protection system , the furnace is in chaos, and it takes a lot of time to clean and restart; the fire protection system is not started in time or insufficiently, causing flames to be ejected from the tow channel at the furnace end, causing serious burns to personnel
Even the entire furnace explodes, causing significant damage to property and personnel

Method used

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Embodiment Construction

[0053] The present invention will be further described in detail in conjunction with the accompanying drawings and specific embodiments.

[0054] In order to facilitate a unified review of the various reference signs in the drawings of the specification, the unified description of the reference signs appearing in the drawings of the specification is as follows:

[0055] 101 is the thermal insulation frame, 201 is the original wire, 301 is the air inlet duct, 302 is the air inlet cavity, 303 is the return air cavity, 304 is the return air duct, 305 is the circulation fan, 306 is the heater, 307 is the filter , 308 is the orifice plate of the blowing nozzle, 309 is the honeycomb plate of the blowing nozzle, 310 is the suction nozzle, 311 is the wind deflector inclined plate, and 401 is the pre-oxidation chamber;

[0056] The reference signs of the furnace end equipment are as follows:

[0057] 501 is the pre-oxidation furnace, 502 is the porch, 503 is the roller frame system, 5...

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Abstract

The invention relates to a double-parallel efficient pre-oxidation furnace comprising a heat-insulating frame and two sets of hot air circulating equipment symmetrically arranged on the heat-insulating frame; all the hot air circulating systems are sequentially stacked together; each set of hot air circulating system comprises a circulating fan, an air inlet pipeline connected with the output endof the circulating fan, an air blowing mechanism in communication with the outlet of the air inlet pipeline, a pre-oxidation cavity, a return air mechanism and a return air pipeline; a plurality of the air blowing mechanisms are provided, and each air blowing mechanism comprises an air inlet cavity, an air blowing nozzle and an air guide inclined plate, the air blowing nozzle is positioned in theair inlet cavity, and the air guide inclined plate is positioned in the air inlet cavity; all the air blowing mechanisms are arranged in sequence, a first tow channel is formed between every two adjacent air inlet cavities, each air blowing nozzle comprises a pore plate and a honeycomb plate, and wind sequentially passes through the air guide inclined plates, the pore plates and the honeycomb plates along a wind circulation path. The pre-oxidation furnace can meet the requirements, such as high load, high efficiency, high safety and low cost, of industrial circles on pre-oxidation equipment and pre-oxidation processes and belongs to the technical field of pre-oxidation furnaces.

Description

technical field [0001] The invention relates to the technical field of pre-oxidation furnaces, in particular to a double-parallel high-efficiency pre-oxidation furnace. Background technique [0002] In the production of carbon fiber, pre-oxidation is a crucial process. Its function is to convert the precursor of linear molecular chain structure into a heat-resistant trapezoidal molecular structure. This process is not only closely related to the performance of carbon fiber, but also to the manufacturing cost of carbon fiber. closely related. [0003] Although there are solid, liquid and air-flow methods for the pre-oxidation of raw silk, the current mainstream in the industry is still the way of hot air circulation oven, among which, horizontal blowing, vertical blowing, side blowing, and central to both ends blowing are currently popular in the industry. technology. For any blowing method, there are some common technical requirements: such as uniform temperature, uniform ...

Claims

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Application Information

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IPC IPC(8): D01F9/12
CPCD01F9/12
Inventor 林刚张永福乔荫春冯军
Owner ATA CARBON FIBER TECH GUANGZHOU
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