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.

路面冷再生機(jī)的組成和工作原理

Composition and working principle of road cold regenerator

組成：路面冷再生機(jī)是瀝青路面冷再生施工中的主要設(shè)備，一般由 動(dòng)力系統(tǒng)、傳動(dòng)系統(tǒng)、工作裝置、噴灑系統(tǒng)和操縱控制系統(tǒng)組成。

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：路面冷再生機(jī)向前行進(jìn)時(shí)，轉(zhuǎn)子向上旋轉(zhuǎn)銑刨原路面材料，同時(shí)， 水通過(guò)軟管從路面冷再生機(jī)連接的水車(chē)中輸送過(guò)來(lái)，并在路面冷再生機(jī)的拌和倉(cāng)中噴灑。水的輸送量通過(guò)微處理器控制的泵送系統(tǒng)控制，以達(dá)到需要的含水量。銑刨轉(zhuǎn)子將水與銑刨料充分拌和。液體穩(wěn)定劑，例如熱瀝青 (冷再生機(jī)自帶泡沫瀝青發(fā)泡裝置，可將熱瀝青加熱到160- 180 °C，與少量水混合發(fā)泡)可通過(guò)專(zhuān)門(mén)設(shè)計(jì)的噴灑嘴被噴灑到拌和腔；粉狀穩(wěn)定劑如水泥需按設(shè)計(jì)添加量事先灑布在路面冷再生機(jī)前的路面上，路面冷再生機(jī)將粉狀穩(wěn)定劑與再生料和水一次性拌和。如遇再生層原級(jí)配不良的情況，可在再生前將所缺少的部分集料灑布在 路面上，通過(guò)與舊料拌和來(lái)改善原路面材料的級(jí)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.