Control method and system for coke oven riser pipe

Abstract

The invention discloses a control method and system for a coke oven riser pipe. The system comprises the riser pipe, a bridge pipe, a low pressure ammonia water spray nozzle, a high pressure ammonia water spray nozzle, a corresponding low pressure ammonia water pipeline, a corresponding high pressure ammonia water pipeline and a programmable controller, wherein a pipe cover capable of being opened and closed and a pipe cover driving cylinder are arranged on the riser pipe; the bridge pipe is connected to an end opening in one side of the riser pipe; a water seal valve and a water seal valve driving cylinder are arranged at the lower end of the bridge pipe; the low pressure ammonia water spray nozzle is arranged at a position, which is close to a riser pipe joint, in the bridge pipe; the high pressure ammonia water spray nozzle is arranged at a position, which is located below the low pressure ammonia water spray nozzle, in the bridge pipe; the low pressure ammonia water pipeline and the high pressure ammonia water pipeline are respectively connected to two end openings of a three-way ball valve; the three-way ball valve is connected with a three-way ball valve driving cylinder or an electromagnetic driving valve; an electromagnetic switching valve or/and the electromagnetic driving valve is/are electrically connected with the controller, and is/are electrically connected with a coke oven control system. According to the control system disclosed by the invention, safe interlocking between all facilities of the riser pipe and work of a coal charging car of the coke oven and a coke pusher is realized; by automatic control and replacement of unmanned work for manual work, the cooperation order of workers and the time deviation of the manual work are eliminated, and the safety and environmental protection risk during work of the coke oven riser pipe is reduced.

Description

technical field [0001] The invention relates to coke oven technology, in particular to a control method and system for a coke oven riser. Background technique [0002] The coke oven is an industrial kiln that heats and drys coking coal under the condition of isolating the air. During the heating and carbonization process of coking coal in the carbonization chamber, raw coal gas is continuously precipitated, and enters the next refining process through the ascending pipe system. The ascending pipe system is the outlet channel for raw coal gas. Pipe water seal valve open and close. [0003] At present, the opening and closing of the rising pipe cover of the coke oven, the switching of high and low pressure ammonia water, and the opening and closing of the water seal valve of the bridge pipe basically adopt the principle of leverage, and cooperate with the operation sequence of the coke pushing car and the coal loading car, and are manually operated on site. [0004] Before t...

AI Technical Summary

Problems solved by technology

The coke oven charging and coke pushing operations are repeated according to the furnace plan, and are carried out in the order of the carbonization room number. The manual operation environment is poor and the labor intensity is high.

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