1.Overview

Nantun Coal Mine is located in Beisu Town, Zoucheng City, belonging to Yankuang Energy Group Co., LTD. It was completed and put into operation on December 26,1973. It is a pilot mine directly responsible for the design and construction of the former Ministry of Coal Industry. It is also the first pair of oversized production mines in Yanzhou mining area, with a well area of 51.69km2. The first level is-350m and the second level is-432m. Nantun coal mine was the first to introduce comprehensive mechanized coal mining in China.

2. Implementation plans

The main conveyor belt, 800mm wide, 1500m long, lifting height 200m, the Angle is 12, using 3500kW drive mode, the belt belt is responsible for the four levels of transportation tasks of the whole mine, the annual transportation capacity is about 800,000 t. At the beginning of 2021, three FGI BPJ 1 explosion isolation and local frequency conversion speed regulating device are configured. The starting time of the system is 60S, and the maximum starting torque can reach 200%. No matter the size of the load, the stable starting effect of heavy load is obvious, and the belt test function can be easily realized, and the operation is simple. The belt running speed can be adjusted according to the coal quantity of the belt conveyor.

3. Application advantage

Using FGI BPJ1 Explosion proof Frequency Converter can truly realize the soft start of the belt conveyor, start smoothly and have no impact on the power grid;

Using FGI BPJ1 Explosion proof Frequency Converter can meet the speed regulation requirements of various loads, improve the production process and improve the production efficiency.

FGI BPJ1 Explosion proof Frequency Converter can achieve automatic torque balance under multi-motor drive of belt conveyor.