SU616284A1 - Compound for caulking gaps between coolers of blast furnaces - Google Patents

Description

The invention relates to compositions for filling gaps between elements of metallurgical units operating in a high temperature zone, and may be advantageous for minting gaps between blast furnace refrigerators.

: The closest to the technical drying and achievable results of the present invention is zamak, consisting aa of the following components, weight. %:

Cast iron chips, 7 6-85

Clayey

(Jument (St. $ 1). 15-25

Water over specified

quantities15 20 l

The disadvantages of such a composition are (Fast hardening due to the use of cement as a binding cement in a low temperature due to a decrease in the content of heat-transfer filler - cast iron chips.

 pshgogo otpepevanv hfy. "Niv as a binding cement soy-.

Supports 1-3 days. The hardened mixture has almost no kompevskovkovyh properties. Thermal expansion of refrigerators during the heating of furnaces and the absence of a compacting of the zakaneynoy mass, its crushing and chipping, the following mechanical chambers, as well as the overheating of the shell, as well as prematurely out of the refrigerators.

The invention of the invention is the development of the bone, the standing of the bones and the improvement of the feedstock.

This is achieved by the fact that, as a binder, the mass contains refractory clay and, additionally, a hard rubber & uru, in the following ratio, wt.% :.

Clay refractory 4-6

Technical Drill2-4

Water 7-12

Cast iron chips

fractions up to 3 mm. The indicated limits are chosen from the condition of preserving the basic properties of the mass of thermal conductivity and deformation under load. Thus, within the specified mass limits t, the deformation under load varies from 19.5 to 21%, and the thermal conductivity at 100 ° C from 0.65 to ё, 65 kcal / m.h.d. With increasing content of iron shavings, mechanical strength and deformation decrease. under the load of the mass, and when the content of the refractory clay increases, the thermal conductivity decreases sharply. The mass is prepared as follows. The clay with brown is kneaded until it is shaped, then pig iron chips are introduced into the mixture and mixed to a uniform consistency of the pasty state. The proposed composition of putty has a twist chemical and physical bone under the atmosphere, high thermal conductivity and the possibility of mechanization of the processes of minting, high deformation under load, in addition, there is no emission of gases. All this provides for thermal expansion of refrigerators. an increase in the embossing density, eliminating the impact of additional mechanical stresses in refrigerators and chipping their corners. Shapes in a laisobre Shape for embossing gaps between a fridge of blast furnaces, containing pig-iron chips, binder and water, characterized in that, in order to increase the durability of the mass and improve its gas density, it also contains refractory clay as a binder and additionally technical borax at the following ratio of combi-agents, wt.%: Ogieupsina clay 4-6 Technical drill2-4 Water7-12 Cast iron chips of a fraction up to 3 mmEstalny Sources of information taken into account during the examination: 1. USSR Author's Certificate No. 323446 kl. From 21 to 7/00, 1972.