Material balance control method and system for flue gas purification system

Abstract

The embodiment of the invention discloses a material balance control method and system for a flue gas purification system. The material balance control method comprises the steps that the working time of an automatic feeding push rod of each adsorption unit and the first working frequency of a round roller unloading machine of each adsorption unit in a preset time period are obtained; according to the working time, the actual feeding time of each adsorption unit is determined; if the relative deviation value of the actual feeding time of the adsorption unit does not meet the preset first deviation threshold value range, the second working frequency of the round roller unloading machine of the adsorption unit is generated according to the actual feeding time of the adsorption unit and the first working frequency; and the first working frequency of the round roller unloading machine of the adsorption unit is adjusted to be the second working frequency. The working frequency of the round roller unloading machine of each adsorption unit is adjusted by utilizing the working time of the feeding push rod of each adsorption unit, so that the blanking amount of each adsorption unit is accurately controlled, the blanking amount of each adsorption unit tends to be consistent, temperature runaway of materials in the absorption tower is effectively avoided, and stable operation of the system is ensured.

Description

technical field [0001] The invention relates to the technical field of flue gas purification, in particular to a material balance control method and system for a flue gas purification system. Background technique [0002] At present, in iron and steel enterprises, sulfur oxides (such as SO2, etc.) In order to prevent the air pollution caused by gas emissions, the sintering flue gas must be desulfurized and denitrified. Iron and steel enterprises usually adopt a special flue gas purification system, in which materials with adsorption function (such as activated carbon) are placed to absorb the sintering flue gas, so as to realize the desulfurization and denitrification of the sintering flue gas. [0003] see figure 1 , figure 1 What is shown is a schematic structural view of a flue gas purification system in the prior art. to combine figure 1 It can be seen that the flue gas purification system includes: an absorption tower 1, a desorption tower 2, a desorption tower fee...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a material balance control method and system for a flue gas purification system to solve the problem that in the prior art, due to the large length of the round roller unloader, the adsorption unit is discharged by the round roller unloader, which is difficult to do. Absolutely uniform feeding will cause the material feeding amount of each adsorption unit to deviate from the design value, which will cause uneven temperature field of each adsorption unit. Uneven temperature field will easily cause overheating of the activated carbon in the absorption tower, resulting in unstable operation. question

Images