A feeding and mixing process and equipment for emulsified asphalt plant cold recycling

Abstract

The invention discloses a feeding and blending technology and a feeding and blending device for cold recycling of an emulsified asphalt factory. The stepped feeding and stepped blending technology is adopted, i.e. the technology comprises the steps of accurately gauging and matching new aggregate, feeding into a one-step stirring pot through a belt conveyor system, spraying a small quantity of water at a new aggregate inlet, pre-stirring, spraying a small quantity of emulsified asphalt, sufficiently blending, enabling the surface of the new aggregate to be packed with a small quantity of asphalt, adding asphalt pavement milling old material, cement and mineral powder, spraying water again, spraying the emulsified asphalt after pre-stirring again, and sufficiently blending, so that an emulsified asphalt regenerated finished material with characteristics of the paved asphalt pavement lower layer can be prepared. After the finished product material prepared by the construction technology and device for feeding and blending in a stepped way is used, the use value of the asphalt pavement milling old material can be sufficiently played, and the produced finished product material is stable in quality; when the material is used for paving roads, the road quality can be improved, and the service life of the roads can be prolonged.

Description

technical field [0001] The invention relates to a material feeding and mixing process and equipment for emulsified asphalt plant cold regeneration, and belongs to the technical field of emulsified asphalt plant cold regeneration. Background technique [0002] The feeding and mixing construction process of emulsified asphalt plant cold recycling is the core technology for the production of emulsified asphalt cold recycled mixture by plant mixing cold recycling equipment. It undertakes the function of providing high-quality asphalt recycled mixture for the construction road surface. The feeding and mixing process Rationality determines the quality of emulsified asphalt cold recycled mixture. [0003] At present, many domestic manufacturers are adopting the construction technology of mixing new aggregates and old asphalt pavement milling materials first, and then mixing them together. The whole construction process is simple to operate and easy to obtain finished materials; but...

AI Technical Summary

Problems solved by technology

[0003] At present, many domestic manufacturers are adopting the construction technology of mixing new aggregates and old asphalt pavement milling materials first, and then mixing them together. The whole construction process is simple to operate and easy to obtain finished materials; but it cannot give full play to the old The utilization value of the material; and because the surface of the new aggregate particles is relatively smooth, after mixing with the old asphalt pavement milling material, the coating of the new aggregate and the new asphalt is poor, which will easily cause uneven quality of the mixture, that is, the finished product The quality of the material is unstable, which makes the road paved with the finished material poor in quality, short in life, and high in repair and maintenance costs

In addition, the existing emulsified asphalt plant mixed cold recycling equipment is set up according to the above-mentioned construction technology, and the quality of the finished material obtained by processing is not stable; the old material of asphalt pavement milling is not well utilized

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