A vacuum microwave drying method for high temperature resistant communication cable insulation process and its drying recovery and reuse treatment device

Abstract

The invention provides a vacuum microwave drying recycling treater of a high temperature-resistant communication cable insulation process. The vacuum microwave drying recycling treater is characterized by comprising a microwave dryer (1), a coil heat exchanger (2), a vacuum pump (5), an auxiliary recovery storage tank (3), an infrared temperature detector (22) and a feedback and control system (23), wherein the microwave dryer (1) comprises a microwave emission device (6), and a cable transmitting and microwave heating cavity; the coil heat exchanger (2) is connected with the vacuum pump (5) by use of a vacuum pipe (19); the microwave emission device (6) is composed of a microwave emitter (7), a waveguide tube (8) and a resonant cavity (9). The vacuum microwave drying recycling treater has the advantages of high drying efficiency, and evener and more thorough volatilization of auxiliaries, and more dispersive and evener pores formed in an insulating layer, and therefore, the low dielectric constant and the good quality of the insulating layer are guaranteed; in addition, the auxiliaries can be recycled after vacuum condensation and reflux, and therefore, the production cost can be reduced and the economic benefit can be improved.

Description

technical field [0001] The invention belongs to a processing device for additives in the production process of polytetrafluoroethylene insulation products of high-temperature-resistant communication cables in the field of communication transmission, and specifically relates to a vacuum microwave drying method for additives in the insulation process of high-temperature-resistant communication cables and its drying recovery and reuse The processing device relates to a processing device which adopts vacuum microwave drying technology, condenses and reflows auxiliary agents, and recycles and reuses the processing device. The device can be widely used in the production process of high-temperature-resistant polytetrafluoroethylene insulated cables. It has high drying efficiency, obvious product performance improvement, significant economic effect and safety and environmental protection significance. Vinyl fluoride insulated cables have the characteristics of high temperature resista...

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Problems solved by technology

[0007] The purpose of the patent of the present invention is to dry the auxiliary agent in the wire core by adopting the vacuum microwave drying technology, condensing and refluxing the auxiliary agent, and recycling and reusing the processing device. The technical problem solved by the invention is to overcome the traditional heating and fumigation auxiliary agent drying method Insufficiency of the above-mentioned problems, a vacuum microwave drying method for high-temperature-resistant communication cable insulation process and its drying recovery and reuse treatment device are provided. Production cost, and a drying treatment method to improve the overall performance of the insulating layer

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