Casting forming method and forming system for refractory green brick

Abstract

The invention discloses a casting forming method and a forming system for a refractory green brick. The casting forming method comprises the following steps of: casting refractory green brick pug into a continuous forming cavity at a high speed by a casting device to form a band-shaped green body; forming the side face of the band-shaped green body by using a green brick side face forming device; cutting the rough top surface of the band-shaped green body off by shaping; and cutting the band-shaped green body according to the size of a brick support plate to obtain a finished refractory green brick. According to the casting forming method, the water content of a raw material is lower than that of the raw material used in extrusion forming and pouring forming, and is higher than that of the raw material used in die forming, and the method belongs to non-pressure forming. The green body is regular in shape after forming, is free from residual inner stress, and has relatively low water content; in a green body sintering process, the deflection is small, and allowance is reduced during forming of the green body; and after sintering, the cold processing allowance is reduced, the mechanical abrasion and the energy consumption of cold cutting processing are reduced, and full automation of the green body can be realized among procedures of subsequent drying, kiln stacking before sintering, transportation after sintering and cold-cutting processing.

Description

technical field [0001] The invention belongs to the field of refractory brick manufacturing, and specifically relates to a refractory brick adobe projection molding method and a molding system. Background technique [0002] At present, the molding of refractory insulation bricks adopts: mold molding, pouring molding, extrusion molding. [0003] The advantage of mold forming is that the shape is regular, and there is basically no need for cold working after sintering. However, mold forming belongs to pressure forming. After forming, the residual internal stress of the green body will cause cracks in the finished product, which will affect the strength and thermal insulation performance of the finished product. Moreover, it is difficult to automate the mold forming of refractory insulation bricks, the labor intensity is high, and the production efficiency is low. [0004] The advantage of pouring molding is that it can produce light-weight refractory insulation bricks, but po...

AI Technical Summary

Problems solved by technology

[0005] Extrusion molding efficiency is low, and extrusion molding belongs to pressure molding, the green body rebounds after forming, resulting in serious irregularities in the green body and residual internal stress, resulting in cracks in the finished product, affecting the strength and thermal insulation performance of the finished product

Irregularity of the green body affects drying and sintering, and the kiln cannot be automated

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