Polyethylene fiber extraction device

Abstract

The invention relates to a polyethylene fiber extraction device which comprises an extraction tank, an upper filament guide roller, a lower filament guide roller, a filament feeding roller and a filament discharging roller; the upper filament guide roller is arranged at the upper part inside the extraction tank; the lower filament guide roller is arranged at the lower part inside the extraction tank; a liquid inlet and a liquid outlet are formed in the two sides at the upper part of the wall of the extraction tank; an insertion hole is formed in the bottom of the extraction tank; a gas inlet pipe in which compressed gas can be introduced is inserted in the insertion hole; and one end of the gas inlet pipe is arranged inside the extraction tank, and the other end is arranged outside the extraction tank. The polyethylene fiber extraction device provided by the invention has the beneficial effects that the whole device is simple in structure; as the gas inlet pipe in which the compressedgas can be introduced is inserted in the insertion hole, bubbles generated accelerate the flow of an extracting agent, so that the extracting efficiency is greatly improved, and the consumption of theextracting agent is reduced; and an ultrasonic generator is not required to be arranged, so that the extracting agent volatilization caused by ultrasonic cavitation is reduced, the production cost isreduced, and the potential safety hazards in the production process are reduced.

Description

technical field [0001] The invention belongs to the fields of polymer material synthesis and chemical separation, and in particular relates to a polyethylene fiber extraction device. Background technique [0002] Ultra-high molecular weight polyethylene (UHMWPE) fiber is also called high-strength high-modulus polyethylene fiber or elongated chain (ECPE) polyethylene fiber, which is composed of relative molecular weight in (1-6)×10 6 The polyethylene is obtained by spinning and super stretching. Compared with other fiber-reinforced composite materials, ultra-high molecular weight polyethylene fiber composites have lighter weight, better dielectric properties and impact resistance, so they are widely used in aerospace, sea defense, weaponry and other fields. [0003] At present, the main process steps of the commonly used gel spinning method to manufacture ultra-high molecular weight polyethylene fibers are: dissolving ultra-high molecular weight polyethylene in a solvent to ...

AI Technical Summary

Problems solved by technology

This extraction machine is suitable for hydrocarbon solvents as the extraction agent, but because hydrocarbon solvents are volatile and flammable, they are not only prone to explosion, poor work safety and reliability, but also easy to cause environmental pollution, and the solvent recovery is not easy, which increases the production cost.

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