Method for maintaining dry and wet material ratio of blended ore uniform

Abstract

The invention provides a method for maintaining the dry and wet material ratio of blended ore uniform. The method is characterized by including the steps that A, according to the hourly wet material consumption of a sintering machine, the set consumption of wet materials every day, the set total quantity of each pile of wet materials, the set total quantity of each pile of dry materials and the set piling quantity of each pile of wet materials are calculated; B, according to the total quantity of dry materials to be piled, different grades of various raw mineral materials participating in piling and the grade requirement of final sintered ore, the ratio of each kind of materials and the dry material quantity set value are calculated; C, each kind of materials participating in piling are sampled, and the actual water content is detected; the feeding quantity of the wet materials is obtained finally. By utilizing the actual water content detected in time, the actual wet material ratio isstill consistent with a set dry material ratio after the actual water content is deducted, accurate blending is achieved, and the quality of the sintered ore is guranateed.

Description

technical field [0001] The invention relates to a batching method of mixed ore, in particular to a method for keeping the ratio of dry and wet materials of mixed ore consistent in sintering batching, and belongs to the technical field of sintering batching. Background technique [0002] In the process of ore sintering production, it is necessary to calculate the daily material (wet) consumption according to the actual material (wet) consumption per hour of the sintering machine, and then calculate the weight of each pile of wet material according to the number of days of use of each pile of wet material , and after deducting the water content in the material, the total amount of dry material for each pile that is planned to be piled is obtained. Since the raw material is not a single one, but a mixture of various mineral raw materials with different grades, it needs to be calculated separately according to the total amount of dry material in each pile planned to be built, th...

AI Technical Summary

Problems solved by technology

However, in the actual batching process, since the materials involved in the batching are stacked in the open air, the water content in them will change due to the influence of many factors, resulting in fluctuations in the moisture content of various materials, such as: rainy days will increase the water content, sunny days will increase Reduce the water content, therefore, it is impossible to keep the water content constant during the whole heap building and mixing period, which will inevitably make the proportioning ratio of the mixed ore heap made after deducting the actual water content different from the original plan The dry material ingredient ratio is inconsistent, or even has a large deviation, which affects the batching accuracy and grade fluctuation of the mixed ore, resulting in the TFe, SiO 2 , alkalinity and other quality indicators fluctuate greatly, which increases the difficulty of index control in the process of sintering and blast furnace production, causing a significant decline in the quality and output of sintering ore