Generally speaking, the road surface will suffer from heavy traffic for a long time, which will lead to subgrade damage. In order to eliminate this kind of damage, it is necessary to carry out structural repair on the entire pavement. The pavement cold recycling machine uses all the milling materials from the beginning. In addition, its economical treatment method makes the cold recycling construction with foam asphalt a pioneering solution, and finally achieves the environmental protection and economic effect.

路面冷再生機的組成和作業(yè)原理

Composition and operation principle of cold pavement regenerator

組成：路面冷再生機是瀝青路面冷再生施工中的首要設(shè)備，一般由 動力體系、傳動體系、作業(yè)設(shè)備、噴灑體系和操作操控體系組成。

Composition: The pavement cold recycling machine is the primary equipment in the cold recycling construction of asphalt pavement, and generally consists of power system, transmission system, operation equipment, spraying system and operation control system.

作業(yè)原理：路面冷再生機向前行進時，轉(zhuǎn)子向上旋轉(zhuǎn)銑刨原路面資料，同時， 水經(jīng)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(jīng)過微處理器操控的泵送體系精確操控，以到達(dá)需要的含水量。銑刨轉(zhuǎn)子將水與銑刨料充沛攪拌。液體穩(wěn)定劑，例如熱瀝青 (冷再生機自帶泡沫瀝青發(fā)泡設(shè)備，可將熱瀝青加熱到160- 180 °C，與少量水混合發(fā)泡)可經(jīng)過專門規(guī)劃的噴灑嘴被噴灑到攪拌腔；粉狀穩(wěn)定劑如水泥需按規(guī)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(wěn)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(jīng)過與舊料攪拌來改善原路面資料的級配。

Operating principle: when the cold pavement regenerator moves forward, the rotor rotates upward to mill the original pavement data, and at the same time, the water is transferred from the water truck connected with the cold pavement regenerator through the hose, and sprayed in the mixing bin of the cold pavement regenerator. The water delivery volume is precisely controlled by the microprocessor controlled pumping system to reach the required water content. The milling rotor fully mixes the water and the milling material. Liquid stabilizers, such as hot asphalt (the cold recycling machine 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 to the mixing chamber through specially planned spray nozzles; The powder stabilizer, such as cement, needs to be distributed on the pavement in front of the cold recycling machine according to the planned increase amount. The cold recycling machine will mix the powder stabilizer with recycled materials and water at one time. If the original gradation of the recycled layer is poor, the missing part of the aggregate can be sprayed on the pavement before recycling, and the gradation of the original pavement data can be improved by mixing with the old material.

路面冷再生機的施工辦法在全球范圍內(nèi)已得到遍及認(rèn)可，它在瀝青路面的修理方面受到了路途建設(shè)部門和修建公司越來越多的關(guān)注。

The construction method of pavement cold recycling machine has been widely recognized worldwide, and its repair of asphalt pavement has attracted more and more attention from road construction departments and construction companies.

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