Vermiculite exfoliation at Green 2000 site
Compact exfoliate vermiculite machine
Green 2000 developed a compact exfoliate vermiculite machine.
The machine can be used as “in house” exfoliator easily. Any seedlings nursery or exfoliated vermiculite user can produce from now his own self fresh, clean and high quality vermiculite.
The machine output is about 1,000 liter per hour.
The machine is able to exfoliate any raw material size of crude vermiculite such as Fine, Medium and Large grades.
Green 2000 will manufacture for you the exfoliating machine, will supply you the right crude vermiculite and will give you the best technical and professional services in vermiculite production, for your full satisfactory.
What Vermiculite is?
Vermiculite has been used in various industries for over 80 years. It is used in the construction, agricultural, horticultural and industrial markets. Vermiculite is the mineralogical name given to hydrated laminar magnesium-aluminum-iron silicate which resembles mica in appearance.
Vermiculite is found in various parts of the world. Locations of the dominant commercial mines are in South Africa, Australia, Brazil, China, Kenya, USA and Zimbabwe.
Vermiculite mines are surface operations where ore is separated from other material, then screened or classified into several basic particle sizes.
When subjected to heat, vermiculite has the unusual property of exfoliating or expanding into worm-like pieces. This characteristic of exfoliation is the result of the mechanical separation of the layers during the rapid conversion of contained water into steam.
The increase in bulk volume of commercial grades is 8 to 12 times, but individual flakes may exfoliate as many as 30 times the original size. There is also a color change during expansion that is dependent upon the chemical composition of the vermiculite and the furnace temperature. The bulk density of crude vermiculite or vermiculite concentrate is in the range of 640-1120 kg/cubic meter, and exfoliated or expanded vermiculite is in the range of 64 – 160 kg/cubic meter.