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Fiber heat treatment reaction device, heat treatment system and heat treatment method

A technology of heat treatment reaction and heat treatment system, which is applied in the field of heat treatment of polyarylate fibers, can solve problems such as low efficiency of heat treatment equipment, huge energy consumption of equipment, and restrictions on the industrialization progress of liquid crystal polyarylate fibers, so as to improve production and heat treatment efficiency , Improve the effect, increase the output and the effect of heat treatment efficiency

Pending Publication Date: 2020-07-03
宁波海格拉新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the preparation of polyarylate fiber is still in the research stage in China. The existing heat treatment equipment is inefficient, huge and energy-consuming, which seriously restricts the industrialization progress of liquid crystal polyarylate fiber in my country.

Method used

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  • Fiber heat treatment reaction device, heat treatment system and heat treatment method
  • Fiber heat treatment reaction device, heat treatment system and heat treatment method
  • Fiber heat treatment reaction device, heat treatment system and heat treatment method

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preparation example Construction

[0053] At present, the preparation of liquid crystal polyarylate fiber is still in the research stage in China, and the relevant research is as follows:

[0054] CN104746155A introduces a thermotropic liquid crystal polyarylate monofilament heat treatment device and a heat treatment method thereof. The method is only for monofilament, and the treatment condition is heat treatment in a heated vacuum airtight box, and the heat treatment efficiency is low. At the same time, an unwinding roller, a heating tension roller and a winding roller are sequentially arranged in the box, and the fibers are dynamically heat-treated in the box. Such a structure makes the whole equipment huge, so the energy consumption and cost of the whole heat treatment are high.

[0055] CN106087177B introduces a continuous solid-state polycondensation heat treatment method for liquid crystal polyester fibers. The method adopts a plurality of high and low temperature chambers to carry out continuous heat tre...

Embodiment 1

[0062] This embodiment provides a heat treatment reaction device, see Figure 1-4 , comprising a reactor body 100, the reactor body 100 is provided with a central axis 102, a tow carrying device 101 and a gas spray device 108, the tow carrying device 101 is arranged on the central axis 102, the The central shaft 102 is connected to an external drive mechanism.

[0063] Specifically, the reaction kettle body 100 is a horizontal tank body, and the gas spray device 108 is a spray plate, which is arranged between the reaction kettle body 100 and the tow carrying device 101 . The central axis 102 is connected to the end of the horizontal tank body and extends toward the inside of the reactor body 100, the other end is provided with a kettle door 103, and the inside of the kettle door 103 is provided with a central axis positioning member 104, It is used for the alignment of the distal end of the central shaft 102 to make the rotation stable.

[0064] Described drive mechanism com...

Embodiment 2

[0074] This embodiment provides a heat treatment system that can be used for heat treatment of polyarylate fibers. see Figure 5 , Fig. 6, including heat treatment reaction device, said heat treatment reaction device is respectively connected with heating and cooling system, vacuum system and nitrogen system. The heat treatment reaction device is the reactor body 100 described in Example 1.

[0075] Specifically, the heating and cooling system includes a heating system and a cooling system. The heating system includes a heat conduction oil heating tank 201, an oil pump 202, and an oil-gas separator 203 connected in sequence, and also includes a heating control unit. The heating control unit mainly includes A controller is electrically connected to the heater inside the heat conduction oil heating tank 201, and the heating control unit controls the heating to start and stop. The coil outlet 115 of the annular coil type oil passage interlayer 110 of the reactor body 100 is con...

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Abstract

The invention discloses a fiber heat treatment device. The fiber heat treatment device comprises a reaction kettle body, a center shaft, a tow bearing device and a gas spraying device are arranged inthe reaction kettle body, wherein the tow bearing device is arranged on the center shaft and used for containing package fibers, and the central shaft is connected with an external driving mechanism.The invention further provides a fiber heat treatment system and a heat treatment method. According to the heat treatment reaction device, the whole roll of package fibers are placed on the tow bearing device, the space utilization rate of the heat treatment reaction device is increased, the heat treatment yield and the heat treatment efficiency are improved, and industrialization of fiber heat treatment is conveniently achieved; and meanwhile, the driving mechanism drives the center shaft to rotate so as to drive the whole roll of package fibers to rotate in the heat treatment process, the gas spraying device inputs inert gas into the heat treatment reaction device, the package fibers make full contact with the inert gas atmosphere, and small molecules separated out of the surfaces of thefibers due to the heat treatment reaction are blown away and brought away, so that heat treatment efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of mechanical equipment for heat treatment of fibers, and is suitable for heat treatment of polyarylate fibers. Background technique [0002] Liquid crystal polyarylate fiber, also known as polyarylate fiber, is a high-performance special fiber obtained by melt spinning. Polyarylate fibers are widely used in aerospace, bulletproof protection, special cables, marine engineering and other fields due to their excellent properties such as high strength and high modulus, high temperature resistance, creep resistance, UV resistance, and chemical corrosion resistance. However, the strength and modulus of polyarylate spun fibers are not high. In order to improve the performance of polyarylate spun fibers, it is necessary to heat-treat polyarylate spun fibers to promote solid-state polymerization and improve their relative molecular weight, thereby achieving The purpose of improving fiber strength. [0003] At pres...

Claims

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Application Information

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IPC IPC(8): D01D10/02D01D10/04D01D11/00D01D13/02
CPCD01D10/02D01D10/0409D01D11/00D01D13/02
Inventor 罗培栋罗艇施彬彬宋丹夏于旻
Owner 宁波海格拉新材料科技有限公司
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