Anhydrous pressed-in mud for blast furnace

Abstract

The invention provides anhydrous pressed-in mud for a blast furnace. The anhydrous pressed-in mud comprises aggregate, a matrix, a binder and an additive, wherein the aggregate is composed of high-alumina bauxite, silicon carbide and zircon, the adding amount of the aggregate is 45-55 parts and the granularity of the aggregate is smaller than 0.4 mm; the matrix is composed of silicon micro powder and magnesium oxide, and the adding amount of the matrix is 10-25 parts; the binder is liquid phenolic resin, and the adding amount of the binder is 15-35 parts; and the additive is sodium hexametaphosphate, and the adding amount of the additive is 2-4 parts.

Description

technical field

[0001] The invention belongs to the technical field of refractory materials, and in particular relates to an anhydrous press-in mud for blast furnaces. Background technique

[0002] Compared with qualitative refractory products, unshaped refractory materials represented by refractory castables have the advantages of short process flow, low production energy consumption and cost, convenient use, wide application range, integrity and good use effect, so they are widely used in the world. It has developed rapidly, and its proportion in the whole refractory material is getting higher and higher. In some countries with advanced refractory technology, the output of unshaped refractories has approached or even exceeded the output of shaped products. For example, the current output of unshaped refractory materials in Japan accounts for about 60% of the total refractory materials; in the United States, it is about 50%; in Britain, Germany, France and other countries,...

Examples

Embodiment 1

[0012] Anhydrous pressed mud for blast furnace, including aggregate, matrix, binder and additives; aggregate is composed of high alumina bauxite, silicon carbide and zircon, the amount of aggregate added is 45 parts, and the particle size is below 0.4mm; matrix It is composed of silicon micropowder and magnesia, and the addition amount of the matrix is ​​16 parts; the binder is liquid phenolic resin, and the addition amount of the binder is 35 parts; the additive is sodium hexametaphosphate, and the addition amount of the additive is 4 parts. Among them, the parts by weight of high alumina bauxite, silicon carbide and zircon in the aggregate are 30 parts of high alumina bauxite, 30 parts of silicon carbide, and 40 parts of zircon; 50 parts, 50 parts of magnesium oxide.

Embodiment 2

[0014] Anhydrous press-in mud for blast furnace, including aggregate, matrix, binder and additives; aggregate is composed of high alumina bauxite, silicon carbide and zircon, the amount of aggregate added is 51 parts, and the particle size is below 0.4mm; matrix It is composed of silicon micropowder and magnesium oxide, and the amount of the matrix added is 15 parts; the binder is liquid phenolic resin, and the amount of the binder added is 30 parts; the additive is sodium hexametaphosphate, and the added amount of the additive is 4 parts. Among them, the parts by weight of high alumina bauxite, silicon carbide and zircon in the aggregate are 40 parts of high alumina bauxite, 40 parts of silicon carbide, and 20 parts of zircon; the parts by weight of silicon micropowder and magnesium oxide in the matrix are silicon micropowder 60 parts, 40 parts of magnesium oxide.

Embodiment 3

[0016] Anhydrous pressed mud for blast furnace, including aggregate, matrix, binder and additives; aggregate is composed of high alumina bauxite, silicon carbide and zircon, the amount of aggregate added is 55 parts, and the particle size is below 0.4mm; matrix It is composed of silicon micropowder and magnesia, and the addition amount of the matrix is ​​25 parts; the binder is liquid phenolic resin, and the addition amount of the binder is 18 parts; the additive is sodium hexametaphosphate, and the addition amount of the additive is 2 parts. Among them, the parts by weight of high alumina bauxite, silicon carbide and zircon in the aggregate are 40 parts of high alumina bauxite, 40 parts of silicon carbide, and 20 parts of zircon; the parts by weight of silicon micropowder and magnesium oxide in the matrix are silicon micropowder 70 parts, 30 parts of magnesium oxide.

technical field

[0001] The invention belongs to the technical field of refractory materials, and in particular relates to an anhydrous press-in mud for blast furnaces. Background technique

[0002] Compared with qualitative refractory products, unshaped refractory materials represented by refractory castables have the advantages of short process flow, low production energy consumption and cost, convenient use, wide application range, integrity and good use effect, so they are widely used in the world. It has developed rapidly, and its proportion in the whole refractory material is getting higher and higher. In some countries with advanced refractory technology, the output of unshaped refractories has approached or even exceeded the output of shaped products. For example, the current output of unshaped refractory materials in Japan accounts for about 60% of the total refractory materials; in the United States, it is about 50%; in Britain, Germany, France and other countries,...

Examples

Embodiment 1

[0012] Anhydrous pressed mud for blast furnace, including aggregate, matrix, binder and additives; aggregate is composed of high alumina bauxite, silicon carbide and zircon, the amount of aggregate added is 45 parts, and the particle size is below 0.4mm; matrix It is composed of silicon micropowder and magnesia, and the addition amount of the matrix is ​​16 parts; the binder is liquid phenolic resin, and the addition amount of the binder is 35 parts; the additive is sodium hexametaphosphate, and the addition amount of the additive is 4 parts. Among them, the parts by weight of high alumina bauxite, silicon carbide and zircon in the aggregate are 30 parts of high alumina bauxite, 30 parts of silicon carbide, and 40 parts of zircon; 50 parts, 50 parts of magnesium oxide.

Embodiment 2

[0014] Anhydrous press-in mud for blast furnace, including aggregate, matrix, binder and additives; aggregate is composed of high alumina bauxite, silicon carbide and zircon, the amount of aggregate added is 51 parts, and the particle size is below 0.4mm; matrix It is composed of silicon micropowder and magnesium oxide, and the amount of the matrix added is 15 parts; the binder is liquid phenolic resin, and the amount of the binder added is 30 parts; the additive is sodium hexametaphosphate, and the added amount of the additive is 4 parts. Among them, the parts by weight of high alumina bauxite, silicon carbide and zircon in the aggregate are 40 parts of high alumina bauxite, 40 parts of silicon carbide, and 20 parts of zircon; the parts by weight of silicon micropowder and magnesium oxide in the matrix are silicon micropowder 60 parts, 40 parts of magnesium oxide.

Embodiment 3

[0016] Anhydrous pressed mud for blast furnace, including aggregate, matrix, binder and additives; aggregate is composed of high alumina bauxite, silicon carbide and zircon, the amount of aggregate added is 55 parts, and the particle size is below 0.4mm; matrix It is composed of silicon micropowder and magnesia, and the addition amount of the matrix is ​​25 parts; the binder is liquid phenolic resin, and the addition amount of the binder is 18 parts; the additive is sodium hexametaphosphate, and the addition amount of the additive is 2 parts. Among them, the parts by weight of high alumina bauxite, silicon carbide and zircon in the aggregate are 40 parts of high alumina bauxite, 40 parts of silicon carbide, and 20 parts of zircon; the parts by weight of silicon micropowder and magnesium oxide in the matrix are silicon micropowder 70 parts, 30 parts of magnesium oxide.