Waste concrete on-site reproduction machine for road deck and operation method of waste concrete on-site reproduction machine

Abstract

A waste concrete on-site reproduction machine for a road deck comprises a frame, wherein a power headstock is arranged at the front end part of the frame; a plurality of wheels are arranged at the bottom of the frame; a primary crushing device, a secondary crushing device, a cement mortar removal device, a fine vibration screen, an aggregate collection system and a stirring device are sequentiallyarranged on the frame from front to back; a material output opening of the primary crushing device is connected with a material input opening of the secondary crushing device through a first belt conveyor; and a material output opening of the secondary crushing device is connected with a material input opening of the cement mortar removal device through a second belt conveyor. To sum up, the waste concrete on-site reproduction machine is high in mechanical degree and working efficiency, and achieves on-site reproduction of concrete roads with respect to conventional severely-destroyed cementconcrete pavements, particularly rural concrete pavements which have narrow construction spaces and are inconvenient in material transport, thus realizing on-site recycling of waste concrete, increasing income and reducing expenditure.

Description

technical field [0001] The invention relates to waste and old concrete reprocessing equipment, in particular to an in-situ waste and old concrete recycling machine for road surface and its operation method. Background technique [0002] Recycled concrete refers to new concrete prepared by making concrete aggregates from waste concrete after cracking, crushing, cleaning, activation, and screening, and replacing natural aggregates in whole or in part. This is by far the most common recycling method. With the advancement of technology, the use of construction waste to prepare recycled concrete has become a common practice in countries all over the world to realize the recycling of construction waste. However, most pavement structures of recycled concrete are only used for the base layer, and the utilization rate is not high, resulting in the thickness of the roadbed. It is constantly increasing, and the current in-situ recycling equipment technology for cement concrete is not ...

AI Technical Summary

Problems solved by technology

At present, the existing waste concrete recycling technology is only used for road subgrade filling and base course, and there are still certain technical problems in the application of recycled aggregate to road surface, which not only leads to low utilization rate of old materials, but also conceivably, over time With the passage of time, the road surface will become higher and higher, which will destroy the coordination between the road and the surrounding environment, thereby affecting the safety, stability and comfort of driving.

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