A manufacturing process of high-radiation refractory bricks for heating furnaces

Abstract

The invention discloses a high-radiation refractory brick manufacturing process used in a heating furnace, and relates to the technical field of calcining technology. The invention comprises the following steps: using 60-mesh bauxite powder as the main material, 240-mesh natural red clay powder as the binding material, adding 300-mesh pyrophyllite fine powder, mixing with water and fully stirring, pouring into brick embryos, standing for demoulding, Divide the brick embryos into two groups, A and B, and prepare for firing. Spray paint A on the surface of the brick embryos of Group A and B, the inner wall of the brick furnace and the inner lining surface, and place the brick embryos of Group A and B in a dry environment at room temperature for 3-4 days. Dry in a high-temperature environment of 55°C-65°C for 6-7 days. Stack the brick embryos of group A and put them on the refractory support along the vertical direction. The refractory support is located inside the brick furnace. The process and the batch spraying of radiant coatings reduce the energy consumption cost of refractory brick production, are conducive to environmental protection, and improve the product quality and heat resistance of refractory bricks.

Description

technical field [0001] The invention relates to the technical field of calcination technology, in particular to a manufacturing technology of high-radiation refractory bricks used in heating furnaces. Background technique [0002] Refractory materials are generally divided into two types, namely unshaped refractory materials and shaped refractory materials. Unshaped refractories are also called castables, which are mixed powdery particles composed of various aggregates or aggregates and one or more binders. When used, they must be mixed with one or more liquids and stirred evenly. Strong mobility. Shaped refractory materials generally refer to refractory bricks, and their shapes have standard rules. At present, the energy consumption cost of refractory brick firing is too high, which makes the total manufacturing cost a great economic pressure on the production enterprises, and high energy consumption is not conducive to environmental protection. The existing firing princi...

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a high-radiation refractory brick manufacturing process for heating furnaces. Through the multiple alternate firing processes of A and B groups and the batch spraying of radiation coatings, the problem of the existing refractory bricks being far away is solved. The Problem of Low Utilization Rate of Infrared Radiation Coatings

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