Post-treatment device for rubber

Abstract

The invention discloses a post-treatment device for rubber, and relates to the technical field of post-treatment of rubber. The rubber is halogenated butyl rubber or butyl rubber, and the post-treatment device comprises a double-screw expander and a high-pressure inert gas source; and the double-screw expander comprises a barrel, a male rotor and a female rotor which are arranged in the barrel, and a working cavity defined by the barrel, the male rotor and the female rotor. The male rotor comprises a main body section and an outlet section which are sequentially connected in the direction from a feeding port of the barrel to a discharging port of the barrel, the shaft diameter of the main body section is larger than that of the outlet section, the joint of the main body section and the outlet section is located in the tail of the barrel, and injection holes are formed in the circumference, right opposite to the joint, of the barrel in the axial direction. Inert gas of the high-pressure inert gas source enters the working cavity through the injection holes. The production capacity of post-treatment equipment for halogenated butyl rubber or butyl rubber can be greatly improved.

Description

technical field [0001] The present invention relates to the technical field of rubber post-processing, and more specifically, to a rubber post-processing device. Background technique [0002] The twin-screw expander is the main core equipment in the post-treatment production line of halogenated butyl rubber. It feeds the rubber material with a water content of less than 10% after being processed by the extrusion dehydrator into the fully enclosed twin-screw. After compression and shearing, a high-temperature and high-pressure product is formed in the screw cavity, and the high-temperature and high-pressure product passes through the adjustable die hole and then flashes and expands to remove the moisture inside the rubber particles. [0003] In the post-processing production of halogenated butyl rubber, the production capacity has been greatly improved after the continuous optimization of the front-end device technology, and the equipment performance of the core twin-screw ex...

AI Technical Summary

Problems solved by technology

However, the shaft diameters of the screws of the twin-screw expander are the same, and the effects of opening holes at different positions on the barrel are not much different, and the production capacity can only be increased by 10%. The production capacity increase of the post-processing equipment is limited.

Images