Generally speaking, the pavement that has been subjected to heavy traffic for a long time will have subgrade damage. In order to eliminate this damage, the whole pavement needs structural maintenance. The pavement cold recycling machine reuses all milled materials, and its economic treatment method makes the use of foam asphalt for cold recycling construction a pioneering solution to achieve environmental protection and economy.

路面冷再生機的組成和工作原理

Composition and working principle of pavement cold recycling machine

組成：路面冷再生機是瀝青路面冷再生施工中的主要設備，一般由動力系統(tǒng)、傳動系統(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 the construction of asphalt pavement cold recycling, which is generally composed of power system, transmission system, working device, spraying system and operation control system.

工作原理：路面冷再生機向前行進時，轉(zhuǎn)子向上旋轉(zhuǎn)銑刨原路面材料，同時，水通過軟管從路面冷再生機連接的水車中輸送過來，并在路面冷再生機的拌和倉中噴灑。水的輸送量通過微處理器控制的泵送系統(tǒng)控制，以達到需要的含水量。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)可通過專門設計的噴灑嘴被噴灑到拌和腔；粉狀穩(wěn)定劑如水泥需按設計添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(wěn)定劑與再生料和水一次性拌和。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，通過與舊料拌和來改善原路面材料的級配。

Working principle: when the pavement cold regenerator moves forward, the rotor rotates upward to mill the raw pavement materials. At the same time, water is conveyed from the water truck connected to the pavement cold regenerator through a hose and sprayed in the mixing bin of the pavement cold regenerator. The delivery volume of water is controlled by the microprocessor controlled pumping system to achieve the required water content. The milling rotor will fully mix the water with the milling material. Liquid stabilizers, such as hot asphalt (the cold regenerator 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 into the mixing chamber through a specially designed spray nozzle; Powdered stabilizer such as cement shall be sprinkled on the road surface in front of the road surface cold recycling machine according to the designed addition amount. The road surface cold recycling machine will mix the powdered stabilizer with recycled materials and water at one time. If the original grading of the recycled layer is poor, the missing part of the aggregate can be sprinkled on the pavement before regeneration, and the grading of the original pavement material can be improved by mixing with the old material.

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