How to improve the yield in the production of refractory bricks

1. Raw material processing. Firstly, the raw materials should be crushed and the equipment should be selected according to the moisture content, hardness, product, particle requirements and dust removal of the coal gangue. In addition to the normal mixing process for raw material processing, a rolling process will be added to the deep processing of refractory bricks to increase product strength. Establish sufficient aging library to ensure the aging time of raw materials to improve plasticity index.

2, extrusion molding. Choose a vacuum extruder, adopt hard plastic molding, its molding pressure is greater than 2.0MPA, and the vacuum degree is greater than -0.09MPA. Considering product upgrades, there is a certain amount of power and room for product expansion when purchasing equipment.

3, dry roasting. Adopting domestic advanced rapid drying and one-time burning in a tunnel kiln, mechanization of the refractory brick work process and automation of temperature control are adopted to achieve high production efficiency, less labor force, and easy management.

Refractory bricks have a history of more than two thousand years in our country. They are divided into many types according to the needs of different industries, but their production processes are roughly the same, characterized by deep color, brittle percussive sound, and large deformation. If the firing temperature is too low or the time is insufficient, it is easy to produce under-fired bricks. Under-fired bricks are characterized by light color, dull knocking sound, low strength, high water absorption, and poor durability. Therefore, the control of temperature is very critical.