Rubber asphalt gravel mixing method

Abstract

The present invention relates to the field of asphalt macadam mixing, in particular to a rubber asphalt macadam mixing method, comprising the following steps: step 1: preparing an asphalt macadam mixing system; step 2: pouring out the macadam during vibration; step 3: crushing After the stone and asphalt enter the mixing frame, the baffle is opened to expand the mixing range; Step 4: When the asphalt flows in the rotating tube, heat is given to the gravel to preheat it. When the baffle is opened, the asphalt and the preheated The mixing frame is sprinkled relatively in the form of a waterfall, so that the gravel and asphalt are dispersed and the asphalt wraps the gravel; Step 5: When the baffle is opened, the sliding plate and the push plate are driven to move, and the push plate moves to drive the accumulated The gravel and asphalt at the two adjacent mixing frames move, and the sliding plate moves to contact the gravel and asphalt in the rotating tube and scrapes off the asphalt adhered to the heat exchange tube. When the technical scheme is adopted, it is convenient to realize full unloading and it is beneficial to improve the mixing effect of gravel and asphalt.

Description

technical field [0001] The invention relates to the field of asphalt crushed stone mixing, in particular to a rubber asphalt crushed stone mixing method. Background technique [0002] Before mixing crushed stone and asphalt, it is necessary to use a lifting mechanism to lift the crushed stone to the mixing device to mix with the molten asphalt. At present, the lifting bucket of a chain elevator is often used to lift the crushed stone, but when unloading, due to the crushing effect, the The clay on the stone will cause part of the crushed stone to stick in the lifting bucket, which cannot be completely unloaded; and when the crushed stone and asphalt are mixed, due to the high viscosity of the asphalt, the raw materials between the stirring blades are prone to accumulation during the mixing process. As a result, the mixing effect of crushed stone and asphalt is poor, and when the crushed stone and asphalt at room temperature are mixed, it is easy to cause accelerated solidifi...

AI Technical Summary

Problems solved by technology

[0002] Before the crushed stone is mixed with asphalt, it is necessary to use a lifting mechanism to lift the crushed stone into the mixing device for mixing with the molten asphalt. At present, the lifting bucket of the chain elevator is often used to lift the crushed stone. The clay on the stone will cause part of the crushed stone to stick in the lifting bucket, making it impossible to completely unload; and when the crushed stone is mixed with asphalt, due to the high viscosity of the asphalt, the raw materials between the mixing plates are prone to accumulation during the mixing process phenomenon, which leads to poor mixing effect of gravel and asphalt, and when gravel and asphalt are mixed at room temperature, it is easy to cause accelerated solidification of asphalt, thereby affecting the mixing effect of gravel and asphalt

Images