噪音排放限制
第二个项目增加了两台长距离输送机将石灰石输送到水泥厂，总长为13.7公里。 与第一个项目不同，这次的任务建造的输送机要穿过居民区。 需要考虑政府规定的噪音排放限制。
四川省位于中国西南部，是中国大多数矿石（如钛、锂和银）的产地，在经济上发挥着重要作用。 电子、机械工程、冶金、化工、医疗、食品和建材行业都是经济支柱产业。 水泥制造商四川亚东水泥有限公司位于四川的省会成都附近， 是亚洲水泥集团（总部位于台湾台北）旗下成员。
Noise emission limitations
The second project includes two additional overland conveyors, with an overall length of 13.7 kilometres, transporting limestone to the cement plant. Unlike the first project, the task here was to build the conveyor across inhabited areas. Noise emission limitations set forth by the government also needed to be considered.
The southwestern Chinese province of Sichuan is the source of the majority of different ores in the country, such as titan, lithium and silver and plays a major role economically. The electronics, mechanical engineering, metallurgical, chemical, medical, food and building material industries are all pillars of the economy. One of the cement manufacturers in the region is Sichuan Yadong Cement Co, Ltd. located near Chengdu, the capital of Sichuan. The company is a member of the Asia Cement Group, headquartered in Taipeh, Taiwan.
Features
Belt Conveyor through inhabitated areas
Overall length of 26 km
Special noise emission limitations
In 2004, the company decided to build a new cement plant in Sichuan. During the development phase, Asia Cement Group received approval from the Chinese government to use an abandoned railway to transport the limestone. Halfway through finishing the plant however, the government decided to build a new dam. The area intended for the transport was to be flooded, which would have changed the project conditions considerably: roads would be flooded and the trucks would have to take significant detours. Asia Cement Group was also planning on building two additional kiln lines at this location. It was determined, as a time and cost efficient alternative, to install a troughed belt conveyor able to navigate horizontal and vertical curves. For this, the company turned to us. For many years now, Asia Cement has been relying on our expertise and is currently operating several of our bucket elevators.
Complete mechanical and electrical engineering
„2004年，公司决定在四川新建水泥厂。在开发阶段，中国政府批准亚洲水泥集团可以使用废弃的铁路运输石灰石。然而，在工程过半时，政府决定建造新水坝。原定的运输区域将被淹没，从根本上改变了项目条件：道路被水淹没，卡车必须绕行。亚洲水泥集团还计划在这里增建两条窑炉生产线。公司决定安装带水平/垂直转弯的槽形带式输送机就成了省时省钱的选择。为此，亚洲水泥集团找到了伯曼集团，多年来，他们一直使用伯曼斗提机，非常信赖伯曼的专业实力。 “
伯曼负责项目的机械电气设计，提供长距离输送机的核心部件，监督安装、调试设备。优势是：伯曼集团旗下中国公司伯曼机械（上海）有限公司离得不远，能够快速到达并部署现场。伯曼的中国同事们熟悉当地风俗，语言相通，了解市场和客户要求，能够与客户紧密合作。
2006年5月，亚洲水泥集团签订了总长12.5公里系统的合同。这台长距离输送机的输送量可达1,500吨/小时，输送速度4米/秒。与其他输送解决方案相比，伯曼槽形带式输送机采用开放式结构，通量更大，可以实现水平/垂直转弯，适应特定的任务和地形。伯曼使用自己的计算程序，在系统开发阶段精确计算胶带的静态和动态牵引力。这是安全设计水平转弯的先决条件。基于这些计算，选择所需的驱动技术和输送带型号，以确保整个系统的使用寿命。
多山地形、软土地面和极端高度差
这段区域为多山地形，竹林茂密，部分被列为自然保护区。因此，政府没有批准输送路线，也不允许砍伐林木。地面也给伯曼的工程师带来了巨大挑战：由于以前的煤矿开采，地面很不稳定；还有些地面是由花岗岩组成，只能部分剥离；还有一段长达1.5公里的输送段必须经过河流。这些外部条件意味着90%的系统需要现场手动安装完成。由于卡车无法通行，有些部件要靠骡子一次一件地运送到安装地点。
The longest belt conveyor in company history
In July 2013, Asia Cement contracted us again for an additional, efficient overland conveyor to replace the trucks transporting the limestone from the bulk loading system to the cement plant. A mass flow of 2,200 tons of limestone per hour was necessary to meet the plant’s requirements. For this project, the first conveyor was to be customised to these requirements. We were planning a second troughed belt conveyor with an overall length of 13.7 kilometres. This is the longest system in our history.
Projects of that size are often unpredictable, so flexibility was needed from the engineers. During the planning phase, the cement manufacturer acquired another plant in Lanfeng, approximately ten kilometres away. Now we had to design the system so that both plants could be supplied with limestone. The team had to divide the overland conveyor in two parts. After 5.4 kilometres, an additional conveyor can be added to be fed to Lanfeng in the future. In February 2015, the system supplier started with the installation of the conveyor frame.
Both overland conveyors have four horizontal curves with radii of 1,200, 1,500 and 1,800 metres. We provided the engineering and the individual parts such as pulleys, motors, drive and control technology and the entire automation. The installation was monitored by a BEUMER supervisor and the wiring of the system was supported by a BEUMER electrical engineer. We were also in charge of the commissioning in May 2016. The troughed belt conveyor is now supplying three kiln lines, a fourth line is planned.
Noise-reducing idlers for quiet transport
伯曼和水泥制造商共同商定长距离输送机的路线。 伯曼充分考虑了8个半径1,000至5,000米的水平转弯段，计算胶带的牵引力。 到现场检查路线的可行性。 员工穿过崎岖的地形，步行检查整条输送线路，直接在现场检查460个支架的预设位置是否合适。 只要技术上可行，输送机的路线尽可能符合地形。。 必须在最短距离内克服高达100米的高度差，因此一些输送段配备了高达55米的桥架。 其中一段还穿越了130米长的隧道。
伯曼与客户紧密合作，设计了长距离输送机和桥架。 伯曼开发、制造和交付了驱动和张紧装置的核心部件，总长25公里的胶带、托辊和驱动技术。 自2009年2月以来，长距离输送机一直将散料从采石场输送到散装系统。 从第一个输送段调试开始，分两阶段提高输送机的输送量。 如今，这套系统的输送速度为4.5米/秒，输送量达2,200 吨/小时。
We took several constructive measures in order to reduce the noise emissions. We used noise-reducing idlers and customised protective covers on the drive stations. In collaboration with the operator, we optimised the conveyor frame and the completely enclosed conveyor bridge.
For the whole project, we were able to ensure that the limestone is transported safely and quietly, without disturbing the residents or disrupting the surrounding nature.
Do you have questions about 亚东水泥?
Do you have questions about 亚东水泥?
Your Contact Person
Claus Weyhofen
Head of Sales Cement