Can lightweight refractory bricks replace heavy refractory bricks? The answer is no.
Lightweight refractory bricks, also known as thermal insulation refractory bricks, are mainly used for insulation and heat preservation, to reduce the heat loss of kilns or thermal equipment. They are generally used as insulation layers for thermal equipment or kilns.
The main function of heavy refractory bricks is to resist the erosion of gases or liquids, protect kilns or thermal equipment from gas or liquid erosion, and ensure the normal operation of kilns. They are generally used in the working layer of thermal equipment or kilns.
From the perspective of usage, we can understand that two different types of refractory bricks are used in different environments, so lightweight refractory bricks cannot replace heavy refractory bricks in terms of usage environment.
Lightweight refractory bricks have low bulk density and high porosity, and can store heat in kilns. However, due to their low compressive strength, they cannot be used in areas subject to gas or liquid erosion.
Heavy refractory bricks have high bulk density, low porosity, high compressive strength, good wear resistance, and can better resist the erosion and friction of gases or liquids.
From the basic performance indicators, we understand that lightweight refractory bricks cannot replace heavy refractory bricks.
For lightweight refractory bricks, their main function is insulation; The main functions of heavy refractory bricks are high temperature resistance and corrosion resistance, both of which have certain differences in essence, so they cannot be replaced by each other. Lightweight refractory bricks and heavy refractory bricks are commonly used refractory bricks in kilns, and there are significant differences in the selection of refractory bricks due to different usage environments.
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