Metallurgic refractory brick joint gum type sealer

Abstract

The invention discloses a metallurgic refractory brick joint gum type sealer, which is composed of the following raw materials in part by weight: 40-50 parts of bauxite clinker powder; 30-40 parts of bonding agent (soft clay); 30-40 parts of high-temperature adhesive; 1-2 parts of cellulose; 1-2 parts of floating agent; 1-2 parts of paper pulp powder and the balance of water. All the raw materials are 80-mesh to 200-mesh fine powders in terms of specification; the preparation method of the gum type sealer comprises the steps: weighing and adding the above raw materials in part by weight into water for being sufficiently mixed, and packaging when slimy mixture is formed. The application finds that, the raw materials of the gum type sealer, which are 80-mesh to 200-mesh fine powders in terms of specification, can meet the demands of sealing different metallurgic refractory brick joints and seams. Based on the raw materials selected and the weight parts thereof in mixture, the purposes of good low-temperature bonding effect, high high-temperature strength and good fire resistance can be achieved. Furthermore, not only the bonding time, which is 2 to 5 hours, is appropriate, but the fluidity bonding degree is satisfactory.

Description

technical field [0001] The invention relates to the field of metallurgical refractory materials, and is applied to the sealing of joints at the butt joints of metallurgical refractory bricks, especially for the butt joint sealing of metallurgical refractory bricks with buckles. Background technique [0002] In the prior art, materials used for joint sealing of metallurgical refractory brick masonry are mainly clay, high alumina, silicon and magnesia refractory mud. It is composed of refractory powder, binder and admixture. The existing technical defects are: the strength at room temperature is low, and the ceramic bonded at high temperature has higher strength; the chemically bonded refractory mud made of water-based, air-hardened or thermohardened bonding materials is formed at a temperature lower than that of ceramics. Before the combination temperature, a certain chemical reaction will occur and harden. [0003] The Chinese Patent Publication No. CN101429039A "high-alum...

AI Technical Summary

Problems solved by technology

The existing technical defects are: the strength at room temperature is low, and the ceramic bonded at high temperature has higher strength; the chemically bonded refractory mud made of water-based, air-hardened or thermohardened bonding materials is formed at a temperature lower than that of ceramics. A certain chemical reaction occurs before the temperature is combined to harden

The problem to be solved is "the fluidity of the fire clay is poor, and the problem of easy shrinkage after calcination