每年有六百万游客留下他们的印记。

Kärcher is supporting large-scale deep cleaning and maintenance cleaning for the historic sandstone and mosaic floor in Cologne Cathedral. This is the second project for which Kärcher is working in collaboration with the Cologne Cathedral workshop. Kärcher experts are carrying out the first stage of cleaning, whilst also providing expertise and technology for further work to be carried out, at no cost to the cathedral workshop. Here is an overview of the challenges posed when carrying out cleaning tasks in one of Europe's most famous buildings.

重新命名为durch Kärcher

数百万英尺留下的痕迹

大教堂的砂岩和马赛克地板可以追溯到19世纪末。从那时起，每年有多达600万游客在上面留下自己的印记，他们把街道上的泥土带进这座历史建筑，这意味着地板的外观受到了影响：砂岩被一层深灰色覆盖，马赛克在几层蜡和护理剂下失去了光辉。
Kärcher与大教堂车间的石材修复师一起，开发了地板深度清洁和维护清洁概念，并于2021年3月开始实施。从那以后，每一个被清理过的部分都会从泥土、石灰和护理剂的下面露出另一块奥本基兴砂岩。使用洗涤器和干燥器进行维护清洁，确保地板的旧光泽尽可能长时间保持。

Scheuersaugmaschine von Kärcher im Kölner Dom im Einsatz

科隆大教堂清洁工程

  • 建设:1248年到1880年(halted for approximately 300 years from 1528 to 1823)
  • 建筑风格：哥特式
  • Height: 157.18 metres (northern tower) and 157.22 metres (southern tower)
  • Length: 144.58 metres
  • 宽度：86.25米
  • 游客：每年约600万（在冠状病毒大流行之前）
科尔纳地区的重建

The first Cologne Cathedral workshop dates back to the start of construction work for the Gothic cathedral on 15th August 1248. The cathedral workshop was re-founded in 1823/24. From 1842 to 1880, the cathedral workshop was entrusted with completing the cathedral and has been responsible for maintaining the church building since. In the first decades after 1945, the focus was on restoring significant damage to the building sustained during the Second World War. The cathedral workshop now has around 100 employees, ranging from craftspeople from various trades, restorers, engineers, archaeologists and art historians.

Kärcher is taking over the first stages of deep cleaning, and will then leave the cathedral workshop with the necessary technology to continue the works. This includes a hot water high-pressure cleaner with a FRV 30 ME cleaner.

大教堂车间receives a BDS 43/Orbital oscillating scrubber and a BDP 50/1500 polishing machine.

为了去除口香糖，Kärcher交出了一个SGG 1。

大教堂车间的工作人员今后还将依靠Kärcher技术对大教堂的地板进行持续的维护清洁，Kärcher为大面积表面提供一台B60 W的洗涤器干燥器，为较难到达的区域提供一台较小的电池供电的BD 38/12 C洗涤器干燥器，比如在长椅之间。此外，大教堂车间的工作人员还接受了如何使用和维护机器的培训。

一个单独的子项目是清洁和保护大教堂车间修复者Jasper Völkert和Sandra Williger于1880-90年代在唱诗堂的1300 m²马赛克地板。在这里，使用Kärcher摆动单圆盘机去除几十年来应用的一层蜡和护理剂。然后，修复者将对马赛克进行保护工作。之后，将使用Kärcher抛光机涂覆新的蜡层

克林德尔·多姆·雷尼贡·桑德斯坦博登·卡彻（Kölnder Dom Reinigung Sandsteinboden Kärcher）

Using a hot water high-pressure cleaner in combination with a surface cleaner, dirt is removed from the pores of the 4000 m² sandstone floor in the nave with water at a temperature of 80 degrees and a pressure of 1–2 bar. The dirty water produced is immediately removed and directed away, meaning that work can be performed in a very targeted manner without spreading water and steam over a large area.

Reinigung des Mosaikbodens im Kölner Dom Kärcher

A layer of wax and care agents that has been applied over decades is removed from the mosaic floor using a Kärcher oscillating single-disc machine. The restorers will then carry out conservation work on the mosaic. After that, a fresh wax layer is applied using a high-speed polishing machine.

Unterhaltsreinigung auf dem Sandsteinboden im Kölner Dom

大教堂车间的工作人员今后将使用Kärcher洗涤器干燥器对大教堂的地板进行持续的维护清洁。

波兰首都莫斯科

Scheuersaugmaschinen von Kärcher im Einsatz auf dem Mosaikboden im Kölner Dom.

Auch der Mosaikboden vor dem Dreikönigenschrein wird mit einer Scheuersaugmaschine von Kärcher gereinigt.

这是一个很好的解决方案

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这是一个很好的例子。

    Cologne Cathedral

    所有事实一目了然

    Country:Germany
    城市：Cologne

    Type of soiling:Dirt from the street, occasional pieces of chewing gum, protective coats of wax
    Cleaning technology:Hot water high-pressure cleaner with surface cleaner, various scrubber driers
    For the restoration works on the mosaic floor: Single-disc scrubber, high-speed polishing machine

    执行：Early March 2021 – ongoing