While settling the contradictions between economic development and environmental protection and finding the chain joints among them, we have discovered some improper views on the environment and some inappropriate evaluation systems about the environment protection.

Qianling coal mine according to the mine shaft air throttle chain-like use and the scene actual situation,transformed the mine shaft air throttle chain-like.

The delivery of goods is the essential part in the chain-like management,the company constructed-itself,the supplier taken care by itself and the third party flows have their own strong and weak points and related operating condition.

Based on the technical information supplied by the manufacturer, the supporting control system for the blower are developed which can provide the integral interlock protection between SO2 Blower and acid making system and allows perfect interlock protection of SO2 blower in production and shutdown.

Six safety line of defenses for safety production were established, including exact and scientific monitoring method, establish interlock, alarm device, treatment system of accidents and emergency mechanism.

The paper introduces how to combine the inductance identify technology with the position detection technology, the VVVF technology, the wireless communication technology and so on, and realize the design and application on orientation and interlock control system of the four - vehicle of coke ove