In August 2019, two ABB Dodge CST H650K were officially put into operation in Heiliangshan 1500000t Phosphate Mine Base of Yichang Changda Chemical Industry Co., Ltd., providing safe, efficient and energy-saving controllable starting transmission driving technology for a main inclined shaft belt conveyor with a length of 1400m, a lifting height of 360m and a driving power of 2x400kw.
Yichang City, Hubei Province, which is located at the boundary between the middle part of China and the upper and middle reaches of the Yangtze River, is famous for its rich phosphate rock. There are more than 20 phosphate rocks with a scale above in Yichang area, and the annual mining volume is up to 13 million tons. Changda Group is one of the larger phosphate rock producers. As early as 2014, at the initial stage of the construction of Changda Chemical Heiliangshan Phosphate Mine, the owners of phosphate mines in this area used truck transportation for underground phosphate ore transportation because they did not understand the belt conveyor transportation technology. However, there are many inconveniences and potential safety hazards in truck transportation. For example, the transportation volume of truck transportation is limited, and hundreds of trucks need to be equipped for non-stop transportation day and night. The labor and maintenance costs are high. Moreover, truck transportation on mountain roads is dangerous, and there are certain safety risks.
After learning this, ABB Dodge team used professional material conveying technology and application experience to help customers answer questions. The ABB team elaborated the obvious advantages of belt conveyor transportation to replace the existing truck transportation from the perspectives of the basic structure and principle of belt conveyor, the development history of belt conveyor technology, and the existing technical level, for example, it can greatly improve the transportation capacity, improve the safety, reliability, and economy. At the same time, combined with the application of belt conveyor, it elaborated the various technologies, advantages and disadvantages, and applications of the existing belt conveyor drive Features, advantages and successful experiences of ABB Dodge CST products. At last, Changda Chemical Heiliangshan Phosphate Mine adopts belt conveyor to transport the underground phosphate rock, and CST is adopted as the driving scheme for the belt conveyor of the most critical main inclined shaft of the mine.
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ABB Dodge CST (controllable start transmission device) is a two in one mechanical soft start drive system, which combines a planetary gear train reducer and a wet clutch system. It is designed and manufactured specifically for long-distance, high-power or multi-point drive conveyors. Under any working conditions, CST can efficiently and reliably transmit and balance the power of the conveyor drive motor, and control the smooth acceleration of the conveyor, Realize the operation requirements under various working conditions such as heavy load startup.
At present, there are more than 4000 CSTs running on more than 1000 long-distance conveyors in the world, and 2600 CSTs have been successfully applied in China. The maximum transmission speed can reach 6~7m/s, the length of a single machine can reach 13 kilometers, and the annual transportation volume can exceed 10 million tons/year or more. At the same time, the maintenance of CST is extremely simple and convenient. The usual maintenance work only involves periodic replacement of transmission oil and filter. The convenience of maintenance ensures a longer production time.
Remote condition monitoring to protect the clean room environment
ABB AbilityTM transmission condition monitoring technology guarantees the continuous production of leading power semiconductor plants in Switzerland.
Smart sensor technology can detect any potential problems in the drives of air handling units (AHUs) and cooling towers, as well as other heating, ventilation and air conditioning (HVAC) system components, helping to avoid the high cost of room closure.
Two sealed packaged AHUs are equipped with a fan respectively, which is critical to accurately control the temperature and humidity in ABB Power Semiconductor cleanrooms in Lenzburg, Switzerland. Manufacturing ultra-thin silicon wafers for high sensitivity power semiconductor devices and modules requires a dust-free environment. Even the slightest pollution or environmental change will destroy the entire production process.
Both AHUs operate at partial load. If one unit fails or needs maintenance, the factory can increase the working load of another unit to ensure continuous operation. Each fan motor is equipped with ABB AbilityTM intelligent sensor, which can remotely monitor the motor status.
"Most fans are enclosed in packaged air handling units or cooling towers." Thomas Keusch, manager of ABB semiconductor factory in Lenzburg, Switzerland, said, "Unless the air handling unit is turned off, it cannot be repaired directly. Therefore, being able to monitor the status of these motors means that we can better predict and plan our maintenance needs."
The other 55 motors on fans, compressors and pumps, as well as 5 frequency converters, have also achieved remote status monitoring. The factory can remotely monitor the operation and health of the entire drive system through an integrated one-stop portal. These status data help optimize system efficiency and plan maintenance activities based on actual needs rather than generic schedules. In addition, this can reduce maintenance costs and avoid unexpected downtime.
"By comprehensively monitoring and analyzing all drive train equipment, our customers can focus on areas that are really important to them, such as manufacturing first-class power semiconductors." Ronald Wenger, head of the digital business of the Swiss Motion Control Division, said.
ABB and Aruba, a network company owned by HP, announced that they will work together to provide large industrial users with a wider range of high-performance wireless connectivity solutions. Industrial users will pass ABB Ability ™ Smart sensor technology and access to in-depth information and data about devices through portals, cloud interfaces or mobile applications.
