Method and equipment of evaluating coal gas oven pressure

A method of evaluating a coal gas oven pressure is described. In this method, a coal to be evaluated is placed in a coking chamber of a movable wall coke oven, in which the movable wall coke oven includes a fixed heating wall and a movable heating wall which are opposite to each other. A coking process is performed on the coal to be evaluated. The performing of the coking process includes measuring and recording a temperature change of an oven center of the moveable wall coke oven, a temperature change of an oven wall, and a pressure change of an oven wall of the moveable heating wall. A coal gas oven pressure status of the coal to be evaluated is evaluated based on the temperature change of the oven center, the temperature change of the oven wall, and the pressure change of the oven wall. In the coking middle stage of the coking process, when the pressure change of the oven wall rapidly increases to a highest oven wall pressure and then decreases while an oven center temperature of the movable wall coke oven