SU45302A1 - Method of briquetting flue dust, silt ore, fine coke, etc. - Google Patents

Description

The invented method relates to the briquetting of top dust, silt ore or fine fuel. Briquettes are intended for use in blast furnace smelting as components of the charge.

In previously proposed famous

/ methods as binding

substances in the briquetting of dust

ores or blast furnace and coke. productions are used from1 or lime7 ЖВДкд1е

 WE'RE TO THE TEST OF THE TREATED BOTH-: her brib / x Metilaus,: Magnesium colored, and fire clay. When briquetting according to the acquired method, p1 MönönüUtgrt) MeetyUt zvstStOO I v

YYH chy obabok, still shale ash, and also, wetting the mixture of ammonia

water

According to the directions of the auto | 3a, the briquettes obtained by its method are different

There are a number of advantages compared to briquettes obtained by others known, iamafymi with pitsobi. So briquettes are not working and not paired with them but a1 d & same 800-900. They did not destroy the Ct-lfpH effect on them by overheating. Thilrfrat T7wew eTo TeMnepE (Typy 150 °. Thru staying on wet or rain briquettes are not destroyed

| I | IV1

and do not even soften in water. In addition, briquettes are frost resistant. However, briquettes do not contain any harmful impurities that may impair the quality of smelted iron. The cost of briquettes is not higher than when manufactured by other known methods, since shale ash is garbage that does not have any other more advantageous use. As at | the inventor cites the following mixtures for briquetting:

Example 1

Top dust. . . 70 in

Magnesium Chloride J

Refractory clay

Liquid glass4 „

Shale ash ......-.... 7, Lime or lime paste. . five ,. Coke or peat stuff. . ten ,

Ammonia water as you require

to obtain a homogeneous plastic mass

Example 2

Dusty ore 70,0.

Magnesium Chloride 0.5.

Refractory clay2.5 "

Liquid glass4,5.

Slate ash10,0,

Limestone test4,5 „

Sawdust 8.

Yammacea water as in example

  -,

 ..

Example 3

Powdered ore .70 c. h

Magnesium Chloride 1

Liquid glass9

Alumina 2

lante ash 4

Known KA3

Coke or peat fines ... 11 Yamma water as in example 1

Example 4

Open head dust 75,0v. h

Refractory clay3.5 „„

Liquid glass2,5 ",

Slate ash8.0 „„

Lime 3.0,,

Peat dust8.0 „„

Ammonia water as in example 1

These formulations are given only as approximate ones, in general, the required amount of binding substances for obtaining a briquetting mass is determined by laboratory tests, depending on the results of the analysis of the consumed raw material.

The method of making briquettes is as follows. Magnesium chloride, clay, slate ash and water glass are added to the flue dust or to the fine ore and fuel fines. All this is thoroughly mixed, after which lime dough and ammonia water are added, as necessary for

. ---, - -; ..- / ..

obtaining a homogeneous plastic mass. From the obtained mass, by pressing in appropriate forms, without heating, briberts are produced, which are then subjected to the essence. The duration of drying briquettes in the air takes significantly from 5-7 days. If drying is performed in chambers with a ffeMrtepaType of 300-400 °, then it is finished within 2-3 hours.

According to the instructions of the inventor, the briquettes made after drying with the imect time tending to increase their strength, frost resistance and water resistance, which is very valuable during storage and transportation of briquettes.

The subject of the image.

The method of briquetting flue dust, pulverized ore, fine coke and so forth, characterized in that as binding substances, in addition to the already known lime, liquid glass, refractory clay and magnesium chloride, shale ash is added and the mixture is moistened with ammonia water after what is pressed and dried briquete. .