Double-point control method of 450 m<2> sintering machine

Abstract

The invention discloses a double-point control method of a 450 m<2> sintering machine, and belongs to iron making methods. The method comprises a method for controlling a burning through point and is characterized in that parameter control for a combustion front point is added, that is, 6 exhaust gas temperature detection facilities are arranged in width directions of bellows ranging from 11# to 18# of the 450 m<2> sintering machine; at the same time, temperatures at the bellow 11# and a bellow 12# are set to be temperatures of the exhaust gas at the combustion front point during sintering; and an actual detection temperature change trend curve is compared with a set temperature, and corresponding measurements are taken. According to the method, the parameter of the burning through point can be known within 15 minutes after ignition, and deviation rectifying operation can be performed in 25 minutes after a deviation rectifying parameter is issued, so that the deviation rectifying operation time is reduced, and the product quality of a sinter is improved.

Description

technical field [0001] The invention belongs to an iron-making method, in particular to a 450m 2 Two-point control method of sintering machine. Background technique [0002] 450m 2 The sintering parameter control method of the sintering machine adopts the traditional sintering end point parameter control method, which is controlled by adjusting the sintering parameters from the combustion end point to 1 to 2 air boxes at the end of the sintering machine. Its disadvantage is that the deviation correction operation lags behind the deviation correction parameter adjustment. The sintering process is to ignite and sinter after the distribution. It takes 30 minutes for the sintered ore to run from the head of the sintering machine to the tail of the sintering machine. At the end of the sintering machine, the parameters of the passing point of the combustion zone at 1 to 2 bellows need to be adjusted. After the adjustment, the sintered material that has been running on the trolle...

AI Technical Summary

Problems solved by technology

[0002] 450m 2 The sintering parameter control method of the sintering machine adopts the traditional sintering end point parameter control method, which is controlled by adjusting the sintering parameters at 1 to 2 bellows from the end point of combustion to the end of the sintering machine. Its disadvantage is that the deviation correction operation lags behind the deviation correction parameter adjustment, The sintering process is to distribute the material first and then ignite and sinter. It takes 30 minutes for the sintered ore after the material distribution to run from the head to the tail of the sintering machine. The parameters of the passing point of the combustion zone found at the end of the sintering machine at 1 to 2 bellows need to be adjusted. After the adjustment, the adjusted parameters will be effective after the sintering material that has been running on the sintering machine trolley surface is finished, and the sintering machine will wait for 1 hour to wait and see, which will affect the product quality of the sintering ore