Generally speaking, subgrade damage will occur to the pavement that has been subjected to heavy traffic for a long time. In order to eliminate this damage, the entire pavement needs to be structurally repaired. The pavement cold recycling machine recycles all the milling materials, and its economical treatment method makes cold recycling construction with foam asphalt a pioneering solution, achieving environmental protection and economic effect.

路面冷再生机的组成和工作原理

Composition and working principle of road cold regenerator

组成：路面冷再生机是沥青路面冷再生施工中的主要设备，一般由 动力系统、传动系统、工作装置、喷洒系统和操纵控制系统组成。

Composition: pavement cold recycling machine is the main equipment in asphalt pavement cold recycling construction, which is generally composed of power system, transmission system, working device, spraying system and control system.

工作原理：路面冷再生机向前行进时，转子向上旋转铣刨原路面材料，同时， 水通过软管从路面冷再生机连接的水车中输送过来，并在路面冷再生机的拌和仓中喷洒。水的输送量通过微处理器控制的泵送系统控制，以达到需要的含水量。铣刨转子将水与铣刨料充分拌和。液体稳定剂，例如热沥青 (冷再生机自带泡沫沥青发泡装置，可将热沥青加热到160- 180 °C，与少量水混合发泡)可通过专门设计的喷洒嘴被喷洒到拌和腔；粉状稳定剂如水泥需按设计添加量事先洒布在路面冷再生机前的路面上，路面冷再生机将粉状稳定剂与再生料和水一次性拌和。如遇再生层原级配不良的情况，可在再生前将所缺少的部分集料洒布在 路面上，通过与旧料拌和来改善原路面材料的级配。

Working principle: When the road surface cold recycling machine moves forward, the rotor rotates upwards to mill the raw road surface materials. At the same time, water is delivered from the water truck connected to the road surface cold recycling machine through the hose and sprayed in the mixing bin of the road surface cold recycling machine. The water delivery volume is controlled by the pumping system controlled by the microprocessor to achieve the required water content. The milling rotor fully mixes the water with the milling material. Liquid stabilizers, such as hot asphalt (the cold recycling machine has its own foam asphalt foaming device, which can heat the hot asphalt to 160 - 180 ° C and mix it with a small amount of water for foaming) can be sprayed to the mixing chamber through specially designed spray nozzles; Powdered stabilizers such as cement shall be sprayed on the road surface in front of the road surface cold recycling machine according to the design dosage, and the road surface cold recycling machine shall mix the powder stabilizers with recycled materials and water at one time. In case of poor original grading of the recycled layer, some of the missing aggregates can be sprayed on the pavement before recycling, and the grading of the raw pavement materials can be improved by mixing with the old materials.