Processing method of steel ladle lining refractory material

Abstract

The invention discloses a processing method of a steel ladle lining refractory material. The method comprises the following steps: crushing: crushing selected high-grade magnesia and concentrate as main raw materials, and carrying out graded screening according to the required particle size requirement to obtain powder of which the particle size is not greater than 0.088; mixing: weighing the rawmaterials according to the weight, adding the raw materials into a sand mixer for dry mixing, and then adding a binding agent sulfurous acid paper pulp waste liquid for mixing; molding: extruding andmolding the mixed qualified pug through molding equipment to obtain a green brick; drying: stacking the molded green bricks on drying equipment for drying treatment; high-temperature firing: stackingthe dried green bricks on a tunnel kiln car, and pushing the green bricks into a tunnel kiln for firing; and inspection: carrying out size and appearance sorting and test on the product discharged from the kiln. The green brick prepared through the method is fast in forming and good in drying effect, and the processing efficiency of the ladle lining refractory material can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of refractory processing, in particular to a processing method for ladle lining refractory materials. Background technique [0002] Most of the ladle lining refractories use magnesia and concentrate as the main raw materials, which are fired at high temperature and have good high-temperature mechanical strength, corrosion resistance, slag resistance and good thermal shock stability; while the preparation time of the existing processing It takes a long time, and the processing of each process needs to be improved. According to the statistics of the time spent in each process, the obtained bricks take the longest time in the drying process, and the drying time is not less than 24 hours, which is the bottleneck in the processing process. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides a method for processing ladle lining refractory mate...

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Problems solved by technology

[0002] Most of the ladle lining refractories use magnesia and concentrate as the main raw materials, which are fired at high temperature and have good high-temperature mechanical strength, corrosion resistance, slag resistance and good thermal shock stability; while the preparation time of the existing processing It takes a long time, and the processing of each process needs to be improved. According to the statistics of the time spent in each process, the obtained bricks take the longest time in the drying process, and the drying time is not less than 24 hours, which is the bottleneck in the processing process.

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