Preparation method of bonding agent for blast furnace stemming with good opening performance

Abstract

The invention discloses a preparation method of a bonding agent for blast furnace stemming with good opening performance, belonging to the field of the blast furnace stemming. The preparation method comprises the following steps of: (1) weighing 40-50 parts of asphalt and 4-6 parts of hydrogenated terphenyl in parts by weight, adding the asphalt and the hydrogenated terphenyl in a reaction kettle in sequence, and agitating and mixing for 20 minutes at the temperature of 55-60 DEG C; and (2) weighing 10-12 parts of organic silicon resin, 8-11 parts of furan resin and 11-15 parts of melamine-formaldehyde resin in parts by weight, controlling the temperature rise rate of the reaction kettle in the step (1) to be 3-4 DEG C / min, adding the organic silicon resin, the furan resin and the melamine-formaldehyde resin in the reaction kettle in sequence after the temperature of the reaction kettle reaches 72-76 DEG C, and continuously agitating and mixing for 16 minutes. The preparation method disclosed by the invention is simple in machining process and low in production cost; and once the bonding agent prepared by the invention is added to make the stemming, the stemming is good in opening performance, is resistant to the scouring and corrosion of high-temperature slag iron, and does not generate pollution to the environment.

Description

technical field [0001] The invention relates to the technical field of blast furnace clay, in particular to a method for preparing a binder for blast furnace clay with good opening performance. Background technique [0002] Blast furnace is the main equipment for ironmaking production. Compared with other ironmaking equipment, it has the characteristics of large output, high yield and low production cost. With the rapid development of the iron-making industry, the blast furnace is gradually developing towards the direction of long life, intensified smelting and large-scale, which has higher and higher requirements for the quality of blast furnace clay. When the blast furnace does not produce molten iron slag, the blast furnace mud is filled in the tap hole to maintain a sufficient depth; when the blast furnace taps iron, the center of the blast furnace mud in the tap hole is drilled out of the tunnel, and the molten iron slag is discharged out of the furnace through the tunn...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the complex production process of the bonding agent for large-scale blast furnace clay in the prior art, and the deficiencies of poor opening performance of the configured blast furnace clay, and provide a method for preparing a binder for blast furnace clay with good opening performance. The bonding agent produced by the invention is used to configure the clay, so that the clay has good plasticity and good opening performance