A high-performance carbon fiber polyacrylonitrile raw silk production washing device and method
A polyacrylonitrile and water washing device technology, which is applied in the direction of artificial filament cleaning/drying, etc., can solve the problems of affecting the uniformity of carbon fiber strength, consuming large water resources and steam, and high residual solvent content, so as to save water and steam consumption , save production space and cost, reduce the effect of residual solvent content
Active Publication Date: 2018-08-17
ZHONG AN XIN TECH CO LTD +1
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Problems solved by technology
[0003] Using this washing method has a long washing process distance, low washing efficiency, high residual solvent content in the raw silk fibers, and consumes a large amount of water resources and steam, which affects the improvement of carbon fiber strength and uniformity.
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[0019] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.
[0020] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.
[0021] Please refer to figure 1 It is a structural schematic diagram of an embodiment of a washing device for producing polyacrylonitrile precursors for high-performance carbon fibers in this application. The washing device is composed of 11 washing tanks 10, which are arranged in three layers, an...
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Abstract
The invention discloses a high-performance carbon fiber polyacrylonitrile precursor production washing device and method. The device comprises at least two vertically distributed washing structures, each washing structure comprises at least two front-back through washing tanks, cleaning water flows into the bottom washing structure from a water inlet of a washing tank at one end of the bottom washing structure, circulates step by step and finally flows out of a water outlet of a washing tank at one end of the top washing structure, and cleaned tows are conveyed through the washing tanks one by one against the circulating direction of the cleaning water. The polyacrylonitrile precursor production washing device is set in multilayer stereoscopic arrangement, the distance of washing procedures can be shortened, and production space and cost are saved. Each washing tank is provided with a heater and a self-circulation spraying system, washing effects are improved, water and steam consumption is saved, the residual solvent content of fibers is reduced, the residual solvent content of precursor fibers can be reduced to below 0.01%, and the strength and the uniformity of the carbon fibers are further improved.
Description
technical field [0001] The present disclosure generally relates to the technical field of chemical fiber manufacturing, in particular to production equipment for the high-performance carbon fiber industry, and in particular to a washing device and method for producing polyacrylonitrile raw silk for high-performance carbon fiber. Background technique [0002] At present, the water washing system in the production process of polyacrylonitrile raw silk for carbon fiber is a multi-stage countercurrent washing system, that is, multiple washing tanks are arranged in series and tiled, and run through in sequence. The desalted water for cleaning flows through the washing tanks sequentially from the back to the front, and the fiber running direction is opposite to the flow direction of the desalinated water for cleaning; The water inlet of the washing tank at the end is the water inlet of the whole washing system, and the outlet of the washing tank at the front is the outlet of the w...
Claims
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IPC IPC(8): D01D10/06
CPCD01D10/06
Inventor 孙金峰齐志军王永生王林刘忠会刘双华政滨
Owner ZHONG AN XIN TECH CO LTD