钢材

在钢铁厂中，在高温下处理烧结矿的设备会遭受严重的磨损。尤其需要确保对高吞吐量的烧结破碎机提供磨损保护，以避免昂贵的维护费用和频繁的工厂停工。维护负责人普遍认为市场上所提供的标准解决方案不足以满足他们的需求。转子和断路器条必须定期换新。
标准解决方案所提供的耐磨性不足的原因主要有三点：

• 烧结矿的高温降低了耐磨堆焊性能；
• 烧结矿较为粗糙，将磨损部件；
• 高冲击力将对脆性耐磨堆焊造成破坏。

e3 是受法律保护的解决方案，专门为提高钢烧结矿破碎机的生产率并且延长其使用寿命而开发。在实验室以及实际工作条件下经过长达 4 年的测试后，该解决方案终于面世。它基于 Castolin Eutectic 独特的高温耐磨合金制成，即使面对冲击和磨损，也能够提供极高的耐磨性。 e3 尤为适用于保护烧结破碎机的关键零件，例如转盘、齿和破除杆。现场测试表明，e3 的性能至少比标准解决方案高 3 倍。该方案除了能够延长使用寿命外，还保留了部件的几何形状，与标准解决方案相比提高了破碎机效率。

除了延长部件使用寿命之外，e3 还能够：

• 降低烧结矿破碎机的维护频率，减少工厂停工情况的出现；
• 通过保持齿形状以实现更高的破碎机生产效率；
• 减少新部件的采购成本；
• 避免使用复杂的水冷破除杆。

We offer a comprehensive range of wear-resistant sieves with round, square or oval apertures manufactured from 3 mm thick or higher, perforated sheets. We also manufacture tailor-made solutions according to specific customer requests. Our production technology uses a state-of-the-art, high power laser cladding installation. This system ensures highest quality wearfacing coatings of tungsten carbides dispersed in a nickel-based matrix to protect standard perforated steel sheets with variable mesh sizes.

The ultra hard tungsten carbide phases which are homogeneously distributed within a self-fluxing, tough nickel-based alloy matrix, provide:

• Extreme wear resistance performance against abrasion and erosion up to 10 times higher than standard, monolithic heat-treated steel alternatives.
• Withstands operating service temperatures up to 400°C. For even higher service temperature requirements, a diverse range of special alloy systems may be proposed to meet specific customer needs.

Modern Castolin Eutectic LaserClad technology uses a focused laser beam to ensure low heat input welding conditions, which translates into extremely effective, wear protective coatings on industrial parts.

After mixing the raw materials in the sinter plants (fine iron ores, additives such as limestone and olivine, recycled iron-bearing materials  from downstream operations, and coke breeze) we find a roller just underneath the charging system to constantly feed the sinter belt which is affected by abrasion. The lifetime of this feeding roller can be increased by our turnkey solutions.

In most cases after the sinter discharge, crushing and hot screening, the sintered material proceeds to a separate cooler. This is typically a rotating structure, divided into circular sectors with tipping devices, in which the sinter is placed in a layer more than 1 m thick and cooled by fresh air.

When the sinter has completed the cooling cycle, each sector is emptied via the tipping device. The cooled sinter is transferred to screens that separate the pieces to be used in the blast furnace.

Both the charge and discharge of the cooler deteriorate the surfaces whose lifetime can be increased with our CDP® wearplates.

Along the whole sinter process, several metallurgical and chemical reactions take place which produce dust and gaseous emissions apart from the sinter itself. These gases contain particles such as heavy metals that will weaken the inner surface of air suction systems.

A complete high resistance conduction system including valves and transitions circular to square section can be manufactured with our CDP® wearplates.