Expanded perlite

The expansive perlite is a white granular material made of the honeycomb structure of the perlite ore, which is made of preheated and transient high temperature roasting. Its principle is that the pearlite ore is broken into a certain granularity and is calcined by preheating, rapidly heated (above 1000 degrees C), the water vaporization in the mineral sand, and the softening of the glass substance. Mineral sand internal expansion, formation of porous structure, 10-30 times the volume expansion of non-metallic mineral products. Perlite appearance: white, wall thickness: 50-150 (mm), length: 0.50 (m), each weight: 2 (Kg).
Application principle
Taking advantage of the porous properties of perlite, this characteristic of perlite helps the roots of the crop to absorb nutrients into the perlite matrix, and the perlite pores can preserve a large amount of water, nourishment, long supply of crop growth, and in agricultural production, a large amount of crops are planted on the surface of the earth and can also be used in the flowerpot. At the same time, it can be used as the diluent and carrier of insecticide and herbicide in agriculture. It also plays an important role in soil modification, soil consolidation, preventing the lodging of crops, controlling the effect of fertilizer and fertilizer, and using the porous adsorption of perlite.
Development trend
1) in order to improve the properties of expanded perlite products, the development of spherical non porous expanded perlite should be developed as soon as possible. First of all, the perlite ore into the furnace should be nearly spherical rather than the irregular shape suitable for the previous granularity; the second is to improve the structure of the kiln and to improve the strength of the expanded perlite.
2) perlite raw ore, through fine comminution, superfine comminution and surface chemical treatment, becomes a mineral filler with certain function, and can be widely used in rubber, plastic, cable, paint, ink and other industries.
3) perlite is used for animal feed and planting crops. It has achieved preliminary results, whether as additive for animal feed, paving material in chicken cages, stuffing, anti slogging and additives to improve mobility, or as a veterinary agent, insecticide, fertilizer, trace element, absorbent or adsorbate, or for separation. Culture matrix and other purposes.