With the acceleration of urban development, large-scale demolition and pavement repair are being carried out all over the country. Pavement cold recycling machine is required for pavement repair. Let's have a look!
Generally speaking, the pavement will be damaged by heavy traffic for a long time. In order to eliminate this damage, the entire pavement needs to be structurally repaired. The cold recycling machine for pavement uses all milled materials from scratch, and its economic treatment method makes the cold recycling construction with foam asphalt a pioneering solution to achieve environmental and economic effects.
Composition and operation principle of pavement cold recycling machine
Composition: the pavement cold recycling machine is the primary equipment in the construction of asphalt pavement cold recycling, which is generally composed of power system, transmission system, operation equipment, spraying system and operation control system.
作業原理：路面冷再生機向前行進時，轉子向上旋轉銑刨原路面資料，同時， 水經過軟管從路面冷再生機銜接的水車中輸送過來，并在路面冷再生機的攪拌倉中噴灑。水的輸送量經過微處理器操控的泵送體系操控，以到達需要的含水量。銑刨轉子將水與銑刨料充沛攪拌。液體穩定劑，例如熱瀝青 (冷再生機自帶泡沫瀝青發泡設備，可將熱瀝青加熱到160- 180 °C，與少量水混合發泡)可經過專門規劃的噴灑嘴被噴灑到攪拌腔；粉狀穩定劑如水泥需按規劃增加量事先灑布在路面冷再生機前的路面上，路面冷再生機將粉狀穩定劑與再生料和水一次性攪拌。如遇再生層原級配不良的情況，可在再生前將所缺少的部分集料灑布在 路面上，經過與舊料攪拌來改善原路面資料的級配。
Operating principle: when the road surface cold regenerator moves forward, the rotor rotates upward to mill the original road surface data. At the same time, the water is conveyed from the water truck connected with the road surface cold regenerator through the hose and sprayed in the mixing bin of the road surface cold regenerator. The water delivery volume is controlled by the microprocessor-controlled pumping system to reach the required water content. The milling rotor will fully mix the water and milling materials. Liquid stabilizers, such as hot asphalt (the cold regenerator is equipped with foam asphalt foaming equipment, which can heat the hot asphalt to 160-180 ° C and mix it with a small amount of water for foaming) can be sprayed into the mixing chamber through a specially planned spray nozzle; Powdery stabilizer such as cement shall be sprayed on the pavement in front of the pavement cold recycling machine according to the planned increase. The pavement cold recycling machine will mix the powdery stabilizer with recycled materials and water at one time. In case of poor original grading of the recycled layer, some of the missing aggregate can be distributed on the pavement before regeneration, and the grading of the original pavement data can be improved by mixing with the old material.
The construction method of pavement cold recycling machine has been widely recognized all over the world. It has attracted more and more attention from road construction departments and construction companies in the repair of asphalt pavement.
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