一、冷再生機(jī)的工作過(guò)程可以簡(jiǎn)單理解為 “破碎 - 混合 - 新生” 三步：

1、 The working process of a cold regeneration machine can be simply understood as three steps: crushing, mixing, and regeneration

破碎舊路：機(jī)械力重塑骨料

Broken old roads: mechanical force reshapes aggregates

設(shè)備前端的銑刨鼓高速旋轉(zhuǎn)，刀片如同 “鋼鐵牙齒”，將舊路面按設(shè)定深度（通常 10-30 厘米）銑刨成均勻碎塊。這個(gè)過(guò)程無(wú)需高溫加熱，依靠機(jī)械力將老化的瀝青混凝土破碎，保留其中仍有強(qiáng)度的骨料，為后續(xù)再生奠定基礎(chǔ)。

The milling drum at the front end of the equipment rotates at high speed, and the blades are like "steel teeth", milling the old road surface into uniform fragments at a set depth (usually 10-30 centimeters). This process does not require high temperature heating and relies on mechanical force to crush the aged asphalt concrete, retaining the aggregates that still have strength, laying the foundation for subsequent regeneration.

均勻混合：再生劑激活舊料

Uniform mixing: Regeneration agent activates old materials

破碎后的舊料與再生劑（如乳化瀝青、水泥、水）在設(shè)備內(nèi)部的攪拌倉(cāng)充分混合。再生劑就像 “激活劑”，重新賦予舊骨料粘結(jié)力，同時(shí)根據(jù)新路面的性能需求，可能添加少量新砂石調(diào)整級(jí)配。整個(gè)攪拌過(guò)程由設(shè)備自動(dòng)控制比例，確保再生混合料的強(qiáng)度和耐久性達(dá)標(biāo)。

The crushed old materials are thoroughly mixed with rejuvenators (such as emulsified asphalt, cement, water) in the mixing bin inside the equipment. Recycled agents are like "activators" that reabsorb the bonding strength of old aggregates, while adjusting the gradation by adding a small amount of new sand and gravel according to the performance requirements of the new pavement. The entire mixing process is automatically controlled by the equipment to ensure that the strength and durability of the recycled mixture meet the standards.

攤鋪壓實(shí)：新路面快速成型

Laying and compaction: rapid formation of new road surface

攪拌均勻的混合料通過(guò)設(shè)備尾部的攤鋪裝置，直接鋪設(shè)在原路面上，形成平整的基層或面層。隨后，壓路機(jī)跟進(jìn)壓實(shí)，讓再生后的路面迅速具備承載能力。從舊路銑刨到新路面成型，整個(gè)流程可在同一天內(nèi)完成，實(shí)現(xiàn) “即修即通” 的高效施工。

The evenly mixed material is directly laid on the original road surface through the paving device at the tail of the equipment, forming a smooth base or surface layer. Subsequently, the road roller followed up with compaction, allowing the regenerated road surface to quickly have bearing capacity. The entire process from milling and planing the old road to shaping the new road surface can be completed in the same day, achieving efficient construction with "instant repair and completion".

二、哪些場(chǎng)景適合選擇冷再生機(jī)租賃？

2、 Which scenarios are suitable for choosing cold recycling machine rental?

1. 中小規(guī)模翻新項(xiàng)目

1. Small and medium-sized renovation projects

無(wú)論是城市支路的裂縫修補(bǔ)，還是鄉(xiāng)鎮(zhèn)公路的車轍處理，冷再生機(jī)租賃都能靈活應(yīng)對(duì)。例如，某縣城的商業(yè)街路面因長(zhǎng)期碾壓出現(xiàn)松散，租賃小型冷再生機(jī)（銑刨寬度 1.5 米），僅用 3 天就完成了 5000 平方米的翻新，成本比全挖重建降低 40%，且施工期間周邊商鋪正常營(yíng)業(yè)，實(shí)現(xiàn)了效率與影響的平衡。

Whether it is crack repair on urban branches or rutting treatment on township roads, cold recycling machine leasing can flexibly respond. For example, the road surface of a commercial street in a certain county town became loose due to long-term compaction. A small cold recycling machine (milling width of 1.5 meters) was rented to complete the renovation of 5000 square meters in just 3 days, reducing costs by 40% compared to full excavation reconstruction. During the construction period, surrounding shops were operating normally, achieving a balance between efficiency and impact.

2. 臨時(shí)應(yīng)急搶修

2. Temporary emergency repair

暴雨后的道路塌陷、冬季凍融導(dǎo)致的大面積破損，需要快速恢復(fù)通行。冷再生機(jī)租賃的即時(shí)性優(yōu)勢(shì)在此凸顯：設(shè)備可迅速進(jìn)場(chǎng)，無(wú)需等待新材料運(yùn)輸，直接利用舊料再生，24 小時(shí)內(nèi)就能完成應(yīng)急搶修，最大限度減少交通中斷時(shí)間。

Road collapse after rainstorm and large-scale damage caused by freezing and thawing in winter require rapid recovery of traffic. The immediate advantage of renting a cold recycling machine is highlighted here: the equipment can be quickly brought in without waiting for new material transportation, and old materials can be directly recycled. Emergency repairs can be completed within 24 hours, minimizing traffic interruption time.

3. 環(huán)保要求高的工程

3. Projects with high environmental protection requirements

在生態(tài)保護(hù)區(qū)、水源地周邊修路，傳統(tǒng)廢料處理方式容易造成污染，而冷再生機(jī)租賃通過(guò)舊料循環(huán)利用，減少了開(kāi)挖和運(yùn)輸環(huán)節(jié)的環(huán)境影響。例如，某景區(qū)道路翻新時(shí)，租賃冷再生機(jī)處理舊路面，避免了砂石開(kāi)采對(duì)周邊植被的破壞，再生后的路面與自然景觀更協(xié)調(diào)，實(shí)現(xiàn)了工程與環(huán)保的雙贏。

Building roads around ecological protection areas and water sources can easily cause pollution through traditional waste disposal methods, while leasing cold recycling machines reduces the environmental impact of excavation and transportation by recycling old materials. For example, when renovating a road in a certain scenic area, renting a cold recycling machine to treat the old road surface avoids the damage of sand and gravel mining to surrounding vegetation, and the regenerated road surface is more coordinated with the natural landscape, achieving a win-win situation for engineering and environmental protection.

4. 預(yù)算有限的基層加固

4. Grassroots reinforcement with limited budget

當(dāng)?shù)缆坊鶎訌?qiáng)度不足但面層尚可利用時(shí)，冷再生機(jī)可將舊基層與部分面層銑刨，加入固化劑（如石灰、粉煤灰）重新攪拌，形成新的半剛性基層。這種 “靶向加固” 的方式，比整體更換基層節(jié)省 60% 的材料費(fèi)用，租賃設(shè)備的成本僅為傳統(tǒng)工藝的 1/3，性價(jià)比突出。

When the strength of the road base is insufficient but the surface layer is still usable, the cold recycling machine can mill the old base layer and part of the surface layer, add curing agents (such as lime and fly ash) and mix again to form a new semi-rigid base layer. This "targeted reinforcement" method saves 60% of material costs compared to replacing the base layer as a whole, and the cost of renting equipment is only one-third of traditional processes, making it cost-effective.

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