一、冷再生机的工作过程可以简单理解为 “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

破碎旧路：机械力重塑骨料

Broken old roads: mechanical force reshapes aggregates

设备前端的铣刨鼓高速旋转，刀片如同 “钢铁牙齿”，将旧路面按设定深度（通常 10-30 厘米）铣刨成均匀碎块。这个过程无需高温加热，依靠机械力将老化的沥青混凝土破碎，保留其中仍有强度的骨料，为后续再生奠定基础。

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.

均匀混合：再生剂激活旧料

Uniform mixing: Regeneration agent activates old materials

破碎后的旧料与再生剂（如乳化沥青、水泥、水）在设备内部的搅拌仓充分混合。再生剂就像 “激活剂”，重新赋予旧骨料粘结力，同时根据新路面的性能需求，可能添加少量新砂石调整级配。整个搅拌过程由设备自动控制比例，确保再生混合料的强度和耐久性达标。

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.

摊铺压实：新路面快速成型

Laying and compaction: rapid formation of new road surface

搅拌均匀的混合料通过设备尾部的摊铺装置，直接铺设在原路面上，形成平整的基层或面层。随后，压路机跟进压实，让再生后的路面迅速具备承载能力。从旧路铣刨到新路面成型，整个流程可在同一天内完成，实现 “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、哪些场景适合选择冷再生机租赁？

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

1. 中小规模翻新项目

1. Small and medium-sized renovation projects

无论是城市支路的裂缝修补，还是乡镇公路的车辙处理，冷再生机租赁都能灵活应对。例如，某县城的商业街路面因长期碾压出现松散，租赁小型冷再生机（铣刨宽度 1.5 米），仅用 3 天就完成了 5000 平方米的翻新，成本比全挖重建降低 40%，且施工期间周边商铺正常营业，实现了效率与影响的平衡。

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. 临时应急抢修

2. Temporary emergency repair

暴雨后的道路塌陷、冬季冻融导致的大面积破损，需要快速恢复通行。冷再生机租赁的即时性优势在此凸显：设备可迅速进场，无需等待新材料运输，直接利用旧料再生，24 小时内就能完成应急抢修，最大限度减少交通中断时间。

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. 环保要求高的工程

3. Projects with high environmental protection requirements

在生态保护区、水源地周边修路，传统废料处理方式容易造成污染，而冷再生机租赁通过旧料循环利用，减少了开挖和运输环节的环境影响。例如，某景区道路翻新时，租赁冷再生机处理旧路面，避免了砂石开采对周边植被的破坏，再生后的路面与自然景观更协调，实现了工程与环保的双赢。

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. 预算有限的基层加固

4. Grassroots reinforcement with limited budget

当道路基层强度不足但面层尚可利用时，冷再生机可将旧基层与部分面层铣刨，加入固化剂（如石灰、粉煤灰）重新搅拌，形成新的半刚性基层。这种 “靶向加固” 的方式，比整体更换基层节省 60% 的材料费用，租赁设备的成本仅为传统工艺的 1/3，性价比突出。

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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