An intelligent monitoring method for blast furnace skip top prevention

Abstract

The invention discloses an intelligent monitoring method for the anti-bumping of a blast furnace charging car, which includes an access controller in the winch drag system, and the controller displays in real time the running time of the charging car, the theoretical position, the actual speed, and whether it has received information from the master. The deceleration position signal of the order; and when danger occurs, according to the designed danger classification, the frequency converter is controlled to take corresponding protection actions; and when a fault occurs, it will alarm in time, and the query data can be recorded, and the fault link can be determined according to the fault. Provide a basis for taking next steps. The invention can realize the function of preventing the top of the feeding vehicle from rushing over, and can reach the ground to facilitate the maintenance personnel to analyze the reasons and check the hidden dangers.

Description

Technical field [0001] The present invention belongs to the field of automatic control, to a method for automatic control, particularly a blast furnace hoisting anti intelligent vehicle monitoring method. Background technique [0002] Iron and steel metallurgy furnace for iron ore in the smelting operation, the process begins with the iron ore and other raw material is transported from the cartridge to the hopper by blast furnace, then placed in a furnace for smelting. [0003] Currently, conveying to the hopper by using iron ore and other raw materials are generally achieved in two ways: one is sent to the blast furnace by a hopper belt, one is sent to the car using the blast furnace by feeding hopper. [0004] Using a small feeding car required to support the winch drive system, the drive stage 2 with hoist carriage feed motor, along the track, are alternately conveying iron ore to the furnace roof. [0005] Winch drive system generally used to drive the motor for driving the w...

AI Technical Summary

Problems solved by technology

[0009] The frequency converter (also in the form of rectification + inverter) will also generate various harmonics when it is working, and the radiated power is relatively large (the rated power of the frequency converter is generally above 315 kilowatts), which will also affect the winch. system that adversely affects signal transmission

Once the winch control PLC fails to detect the position signal of the feeder truck, or the control signal to the inverter is interrupted, it will cause the situation that the parking cannot be stopped as required, and eventually the feeder truck rushes to the furnace roof at high speed, resulting in a "top rush" accident

The "topping" of the feeder truck may cause derailment at the slightest level, or collide with other equipment on the furnace roof at worst. In either case, it will lead to shutdown of production, time-consuming and labor-intensive repairs, and large economic losses.

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