Zhaojin nonferrous Baohua mining main shaft 2800kw series 12 pulse hoist electr
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Address：No.18 Xuefu West Road，High-tech District，Yantai，Shandong，China
Tel: +86-535-6857870（Operation） +86-535-6857866（Office）
Fax: ytjinjian@126.com
1.Basic parameters of the hoist system
1.1Model of Main Engine: type JKMD – 4.5 x 4 ZⅢground multi-rope friction hoist
1.2Transmission Way: DC motor with low speed and direct connection;
1.3Hoist Way: let bottom-dump skip and counterweight as the balance weight each other;
1.4Hoist Height: 682m;
1.5Hoist Speed: Vmax=10.47m/s;
1.6Acceleration or Deceleration: a1=a2=0.7 m/s2;
1.7Stop Point Number: one loading point, one unloading point.
2.Basic parameters of the hoist main motor
2.1Motor Model: ZKJ3100/780
2.2Rated Power: 2800kW
2.3Rated Voltage: 900V
2.4Rated Current: 3600A
2.5Rated Speed: 46r/min
2.6Exciting Voltage: 220V/110V, Exciting Current: 77A/154A
2.7Overload System: ≥2
2.8Insulation Grade: grade F, Protection Grade: IP44
3. Introduction to the Hoist Electric Control System
This hoist electrical control system uses S7-300 series of redundant PLC as the control core. Master and monitor CPU are all 412-3H. Loading station control system uses the S7-300 series of independent CPU. The transmission system adopts two original imported ABB DC governor core to form the 12 pulse mode in series. The model of DC governors is DCS800-S02-5200-05+K454. The model of excitation device is DCS800-S01-405-04. Loading station control system uses the independent CPU, 313C-2DP. IT make the communication with master CPU by optical fiber into Profibus-Dp, improved the stability of the communication system. When communication fails it still can realize automatic chain operation of the loading station by turning to the local work mode, improved the reliability of the system. Hoist electric control system realized the unattended full-automatic operation mode in the whole process of automatic loading of ore, running, acceleration, deceleration, stopping and unloading of ore. Date putted into operation of the project is May 2013.
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Address：No.18 Xuefu West Road，High-tech District，Yantai，Shandong，China
Tel：86-535-6857870（Operation） 86-535-6857866（Office）
Fax：86-535-6857877（Office）
Mailbox：ytjinjian@126.com
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