Flexible crushing equipment for waste asphalt mixture

Abstract

The invention discloses flexible crushing equipment for a waste asphalt mixture. The flexible crushing equipment comprises a fixed base, a crushing cavity, a charge hole, a fixed crushing roller, a movable crushing roller, a first transmission motor, a fixed belt wheel, a first transmission motor belt, a movable base rail, a movable base, a hydraulic rod supporting base, a hydraulic rod, a secondtransmission motor, a movable belt wheel, a second transmission motor belt, a fixed block, a supporting rod, a slide block and a locking bolt, wherein the fixed crushing roller is arranged at one sideof the crushing roller; the movable crushing roller is arranged at the other side of the crushing cavity; the bottom ends of the two sides of the crushing cavity are equipped with comb tooth bracketrods; comb teeth are arranged on the top surface of each comb tooth bracket; and the movable base roller is embedded into the movable base rail, so that the movable base is in sliding connection to the fixed base. The flexible crushing equipment can perform differential-speed control over rotation speed of the crushing rollers, is strong in crushing performance, can adjust spacing of the crushingrollers, is high in material crushing and recycling efficiency, is firm in system structure, and can clean the roller tooth surfaces of the crushing rollers.

Description

technical field [0001] The invention belongs to pavement engineering machinery, and relates to the field of crushing waste and old asphalt mixture of asphalt mixture cold recycling mixing equipment, in particular to a flexible crushing equipment for waste and old asphalt mixture. Background technique [0002] In the crushing technology, the traditional crushing methods use jaw crushers, double-roll crushers, etc. The jaw crusher crushes the RAP whose size exceeds the limit by extrusion, and the impact force is large. Using this method for crushing will generate loud noise and more dust, which cannot meet the environmental protection requirements. The particle size of the crushed material too small. When the waste asphalt mixture is crushed using this kind of equipment, the crusher will break the waste asphalt mixture into particles with too small particle size, which cannot achieve the recovery of asphalt, and increase the cost of asphalt and stone during use. [0003] The...

AI Technical Summary

Problems solved by technology

The existing double-roller crusher technology is not suitable for crushing waste asphalt mixture, and has the following technical defects: (1) The existing double-roller crusher cannot control the speed of the two crushing rollers independently, and there is a problem that the material is crushed Insufficient crushing in the machine

(2) The existing double-roll crusher cannot adjust the roller gap between the two crushing rollers. When the waste asphalt mixture is poured into the crusher, the stones in the material are crushed by the crushing rollers, and the stones are crushed Grinding into smaller particles will destroy more stones in the waste and affect the recycling of waste asphalt mixture

(3) When a double-roller crusher is used to crush waste asphalt mixture, the two crushing rollers are in a crushing state for a long time, and a large amount of heat is generated between the crushing rollers and the material, which causes the asphalt to melt and stick to the surface of the crushing rollers, resulting in the The gap between them is small, which affects the crushing efficiency

There is no device for cleaning the surface of the crushing roller in the existing crusher technology, which cannot be applied to the crushing of waste asphalt mixture

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