Three-level intelligent combined control system for mine local fan

Abstract

The invention discloses a three-level intelligent combined control system for a mine local fan, and belongs to the technical field of intelligent control of mine tunnels. The three-level intelligent combined control system comprises a monitoring system, a conversion system and a control system, wherein the monitoring system comprises a feeder switch, a double-power supply fan switch, a direct-current power supply, a gas sensor, an air speed sensor and a video surveillance device; the conversion system comprises a monitoring substation, a direct-current power supply and an Ethernet switch; thecontrol system comprises a ground control machine, and video dispatching and surveillance software; the control system is connected to the conversion system through Ethernet; and the conversion systemis connected to the monitoring system. The "fan point-underground power substation-ground dispatching" three-level intelligent combined control system provided by the invention is a control system integrating mine power supply, mine ventilation and automatic mine monitoring, replaces manual operation with automatic control, realizes the unattended operation of the local fan ultimately, reduces the effect-raising and human errors and ensures the safe and efficient production of the mine.

Description

technical field [0001] The invention belongs to the technical field of mine roadway intelligent control, and in particular relates to a three-stage intelligent joint control system for mine local ventilators. Background technique [0002] Coal mine ventilator is the key equipment to ensure safe mining. The most important disaster that causes mass casualties and casualties in coal mine disasters is gas explosion. The ventilator is to dilute and discharge underground gas and ensure that underground workers have a sufficient amount of air that meets the requirements. . At present, most of the local ventilators in coal mines in my country are driven by synchronous motors and run at a constant speed. Most of the ventilator speed control researched is program control from the electrical point of view. There are also some studies on fuzzy control, but they are not well combined. Mine reality, can not be put into practical application. [0003] On the other hand, the operation of t...

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Problems solved by technology

At present, most of the local ventilators in coal mines in my country are driven by synchronous motors and run at a constant speed. Most of the ventilator speed control researched is program control from the electrical point of view. There are also some studies on fuzzy control, but they are not well combined. Mine practice, can not be put into practical application

[0003] On the other hand, the operation of the ventilator is basically supervised by specialized personnel of the team. The care of the partial ventilator must not only master the operation and operation specifications of the mine explosion-proof switch, but also need to master the safety knowledge of tunnel ventilation. The requirements are relatively high, but at present, all local ventilator nurses in mines across the country have low education and knowledge levels. Power supply accidents such as leakage and short circuit occur in mines, or emergencies such as gas exceeding the limit in roadways cause large areas in underground mines. During a power outage, local fans often cannot be started normally as required, causing gas to exceed the limit, which greatly affects mine safety

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