Liquid coal combustion improver

Abstract

The invention discloses a liquid coal combustion improver which is prepared from the following raw materials in proportion: carboxymethyl ferrocene, methylcyclopentadienyl manganese tricarbonyl, acerdol, cerous nitrate, aluminum nitrate, magnesium nitrate, tween and absolute ethyl alcohol. In the liquid combustion improver, the carboxymethyl ferrocene and the methylcyclopentadienyl manganese tricarbonyl are taken as combustion-supporting synergist, the acerdol, the cerous nitrate and the magnesium nitrate are taken as oxidant, the aluminum nitrate is taken as adsorbent, the tween is taken as penetration dispersant, and the absolute ethyl alcohol is taken as complex solubilizer. When the combustion improver is added into coal, chemical substances with macromolecular structures in raw coal can be destroyed; when the liquid coal combustion improver is reacted with coal powder under the action of a high temperature, bonds among connecting structure units of the coal powder can be ruptured, so that the reaction activity of the coal powder can be enhanced, the thermolysis process of the coal powder can be promoted, active oxygen and oxygen gas can be released, the function of catalysis and combustion support can be achieved, pyrolysis products can increase, and the combustion performance can be better; and by virtue of catalytic cracking on the coal, the coal powder can be quickly and completely combusted, so that the aims of increasing coal powder quantity and decreasing coke ratio can be achieved.

Description

technical field [0001] The invention relates to a pulverized coal combustion accelerant commonly used in ironmaking production, in particular to a liquid coal combustion accelerant with good permeability and dispersibility. Background technique [0002] At present, increasing the amount of pulverized coal injection and reducing coke consumption are commonly used in metallurgical ironmaking production at home and abroad to reduce ironmaking costs. Production practice shows that under the condition of high coal ratio, the combustion conditions of pulverized coal in the blast furnace deteriorate, the combustion rate decreases, and the replacement ratio of coal injection tends to decrease. At the same time, coal, as a fuel, naturally reacts slowly in combustion, and the combustion is not complete. Various elements in the coal cannot effectively participate in the combustion, so the amount of slag discharge increases, so that the amount of pulverized coal injected cannot be i...

AI Technical Summary

Problems solved by technology

Judging from the current actual application situation, the existing coal-fired combustion accelerants can be divided into four categories: the first is based on enhancers or supplemented by industrial salt, MnO 2 , Fe 2 o 3 , sugar, urea, etc., supplemented by sulfur fixatives; the second is mainly various metal oxides and tailings; the third is mainly organic molecules; the fourth is mainly metal carboxylates, including Acetate, succinate, fatty acid salts, etc.; the above-mentioned combustion enhancers have their own advantages and disadvantages in actual use