Perlite Expansion Furnace / Perlite Ore Expansion Oven

Product Details

The perlite expansion furnace is also called Perlite Expander Kiln, it is specially used to expanding perlite ore.
Perlite expansion furnace work process:
What is perlite ore ?
Perlite ore is an amorphous volcanic glass, typically formed by the perlite, obsidian, pitchstone. It can be greatly expanding when heated sufficiently.
Perlite expansion furnace work process:
What is the expanded perlite ?
Expanded perlite is produced by perlite expansion furnace, it is a kind of white granular material with a honeycomb structure inside which is made by preheating and instantaneous high temperature roasting. The principle is as follows: the perlite ore is crushed to form a certain size of ore. Thermal calcination, rapid heating (above 1000 °C), water vaporization in ore, expansion in softened vitreous ore containing sand, forming a porous structure, volume expansion 10-30 times of non-metallic mineral products.

(Raw material of perlite ore)


(Expanded perlite)


Expanded perlite application areas
(1) Architecture: insulation and heat insulation of building roofs and walls; lightweight aggregates of building materials.
(2) Industrial: Dip-pressed hydrophobic perlite insulation board, sound absorbing panel, partition wall panel, fireproof panel, etc.
(3) Deep cold, low temperature engineering insulation, industrial equipment, pipeline insulation, etc.
(4) Agriculture and horticulture: soil improver, soilless culture substrate, pesticide retardation agent.
(5) Others: filter aids, fillers, abrasive materials, slag materials for steel making processes, etc.