Shanxi Coal Co., Ltd. Huozhou Coal Power Company Li Yazhuang Mine, mine field area of ​​34 square kilometers, geological reserves of 248.854 million tons, the recoverable reserves of 134.58 million tons, annual design production capacity of 1.5 million tons. Coal products are mainly coking coal, known as "fine grain in the metallurgical industry," and are ideal coking coal for metallurgy and chemical companies. In 2009, Luo Jiahua announced that it will cooperate strategically with the Li Yazhuang Coal Mine, the second largest large-scale mine in China that Romania will build in cooperation with Huozhou Mining Area, and is committed to integrating the advantages of the two sides in digital coal mining application platform, automation, and informationization. For the construction of coal mines to bring a digital, humane interactive experience. Subsequently, Luo Jiajia Hua and Lijiazhuang Coal Mine Engineering Technology Center of Huozhou Coal and Power Company of Shanxi Coking Coal Group were formally established.
Li Yazhuang Coal Mine adopts a set of downhole automation system, which can realize automatic monitoring and automatic alarm for real-time conditions of mines. It can ensure accurate, real-time and fast operation of safety monitoring services, and ensure efficient operation of rescue, disaster relief and safe rescue operations. The scientific and comprehensive statistical analysis of mining production cost indicators, detailed and careful personnel arrangements for internal employees, and comprehensive and systematic decision-making materials are the best assistants for leaders at all levels to make scientific decisions on coal mine management.
system requirement
All products use industrial grade products to ensure that the system operates continuously and reliably for 24 hours.When working, the entire network has a chain structure, Gigabit bandwidth, and ring network redundancy.
Collecting downhole data can be reported actively every change, which is convenient for the staff to deal with it in time.
Can adapt to harsh field applications, such as wide temperature and anti-electromagnetic interference.
Moxa solution
The downhole automation system of the Li Yazhuang Mine requires industrial Ethernet switches that can form a gigabit ring network and have high reliability, and finally Moxa EDS-728 modular industrial Ethernet switches. The EDS-728 Modular Ethernet Switch has 4 Gigabit ports and 24 Ethernet ports, allowing the system to be expanded with greater flexibility. In addition, EDS-728 has a variety of high-performance network management technologies, such as less than 20ms ring network self-healing time, support for RSTP / STP protocol, support for IEEE 802.1X and https / SSL network security protocols, etc., so that practical applications become more reliable.
In the coal mine of the Li Yazhuang mine, the power supply is not a commonly used voltage such as 220V or 110V, but 127V DC is used. Therefore, the ioLogik E2242 is used to collect the analog of the downhole power supply. The ioLogik E2242 is equipped with 4 AIs and 12 DIOs. In this case, four AIs are used to collect data on downhole voltages to ensure that the downhole power supply is normal. The ioLogik E2242 supports Click&GoTM, which immediately reports events through TCP, UDP, e-mail, and SNMP Trap, allowing workers to handle exceptions in a timely manner. Not only that, the active reporting function of the ioLogik E2242 replaces the previous polling architecture, which not only reduces the cost of using previous PLCs but also greatly reduces the network bandwidth share.
In addition, there are several serial devices that can't be connected to Ethernet in the underground, so Moxa provides a full range of solutions and provides NPort 5130 to connect some underground serial devices.
The product requirements are very high downhole. Moxa products are highly reliable. They not only support operating temperatures of 0 ~ 60°C, but also pass various safety certifications, including UL508, UL, etc., and UL/cUL Class I, Division 2 , Groups A, B, C and D, ATEX Zone 2 and EEx nC IIC certification of hazardous areas, these can greatly ensure that the product in 24 hours of continuous and reliable operation.
In the underground automation system of Liyazhuang Coal Mine, eight EDS-728 modular industrial Ethernet switches, eight ioLogik E2242 Ethernet microcontrollers and 12 NPort 5130 serial device networking servers were selected. The current product is operating reliably and stably.
System configuration diagram
Inoue Downhole Automation Monitoring System
Underground Comprehensive Automation System
Why Moxa?
EDS-728 supports Moxa Turbo Ring, self-healing time <20ms to ensure stable and reliable network operationEDS-728 has an easy-to-use network management function to facilitate system configuration
EDS-728 uses single-mode fiber for transmission, suitable for long-distance transmission in coal mines
ioLogik E2242 Ethernet Microcontroller Sends Alarm Messages Proactively, Saving PLC Costs
NPort 5130 provides serial device networking
Moxa offers a full range of solutions and integrated services
Application product introduction
EDS-728
Supports Turbo Ring (self healing time < 20 ms)
ioLogik E2242
NPort 5130
Magnetic Bluetooth Earphone,Running Wireless Earphone,Earphones With Bluetooth,Wireless Earphone
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