Device and method for recycling thermoset composite by utilizing fluidized bed

A composite material and fluidized bed technology, which is applied in the field of recycling and reuse of waste composite materials, can solve the problems of intermittent production, high energy consumption, high temperature and high pressure, etc., and achieve a large contact area, small performance damage, and reduced energy consumption. Effect

Active Publication Date: 2014-04-02
北京玻钢院复合材料有限公司
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Problems solved by technology

[0004] The fluidized bed recycling thermosetting composite material technology developed by the University of Nottingham in the United Kingdom has little damage and damage to fibers and high efficiency in recycling fibers and resins; however, it has disadvantages such as high temperature and high pressure, high energy consumption, and intermittent production.

Method used

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  • Device and method for recycling thermoset composite by utilizing fluidized bed

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Embodiment Construction

[0032] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0033] Such as figure 1 As shown, the thermosetting composite recovery device of the present invention is provided with an air heater 101, a gas cylinder 102, a horizontal fluidized bed 201, a feeder 202, an induced draft fan 203, a quartz sand circulation storage tank 301, and a recovery fiber storage tank 302 , the second cyclone separator 303, the aftertreatment furnace heater 304, the first cyclone separator 305, the computer and data transmission system 401.

[0034] The fluidized bed used in the present invention is a horizontal fluidized bed 201, which is composed of a fluidized bed box body and a fluidized bed top cover, and a feed inlet and a discharge outlet are respectively arranged at both ends of its length; The feeder 202 is connected; the discharge port is located at one end of the bottom plate of the horizontal fluidized bed...

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Abstract

The invention discloses a device and a method for recycling thermoset composite by utilizing a fluidized bed. The device is characterized by comprising an air heater connected with an air bottle; an air outlet of the air heater is connected with an air inlet formed in a baseplate of the horizontal fluidized bed; a feeder is communicated with a feed port of the fluidized bed; a quartz sand circulation storage tank and a recycled fiber storage tank are respectively connected with outlet pipelines of the fluidized bed; a sand outlet is arranged at the lower end of the quartz sand circulation tank and is connected with a first cyclone separator through a pipeline; the recycled fiber storage tank receives short fibers blown out of the fluidized bed; and moreover, each of the devices is provided with a pressure transmitter and / or a temperature transmitter and a valve, is connected with a 485 signal output end through a lead, and is further connected with an externally-arranged computer interface through an RS232 riser card used data line. With adoption of the method realized through the devices, the massive waste thermoset composite can be heated uniformly to have rapid and stable cracking reaction, and can be controlled easily; the used quartz sand can be recycled; and moreover, the cost is low and the method is easy to implement.

Description

technical field [0001] The invention relates to a device and method for recovering fibers from waste thermosetting composite materials; specifically, a device and method for recycling thermosetting composite materials using a fluidized bed; it belongs to the technical field of waste composite material recovery and reuse. Background technique [0002] With the wide application of thermosetting composite materials in aerospace, automotive industry, sports equipment and other fields, the waste generated is increasing day by day. On the one hand, composite material waste has leftovers from the process of manufacturing composite materials from composite materials, and its yield reaches 30%; on the other hand, there are increasing waste and old products. There are thousands of composite aircraft that have reached the end of their service life. At this time, if the effective recycling system and supply chain are still not in place, the disposal of composite materials will become a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B53/08C10B49/22C10B57/00
Inventor 胡照会宋金梅刘建叶彭玉刚
Owner 北京玻钢院复合材料有限公司
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