Supply vermiculite how much a ton of factory direct sales expansion the vermiculite www.hebeizhishi.com level specification (mm) loose proportion (Kg / m3) water absorption (%) of impurities (g / m 3) 
 1> 4145475 <3 
 2 2.5-4 190 450 <3 
 <2.5 200 420 <4 

 Vermiculite is a hydrate, was massive, flaky. Interlayer water molecules at high temperature burning, the volume increases 6-15 times. Rich in nitrogen, phosphorus, potassium, aluminum, iron, magnesium, silicate, and other ingredients. The vermiculite ore roasting at high temperatures its volume can be rapid expansion of 8-20 times expansion proportion 130-180kg/m3, has a strong insulation performance. 
 Ding Wang uses of vermiculite has been widely applied to the construction, metallurgy, petroleum, shipbuilding, environmental protection, thermal insulation, thermal insulation, insulation, energy conservation, horticulture and other fields. Animal husbandry: the expanded vermiculite unique structural characteristics and surface properties, as well as non-toxic, sterile and chemically inert, can be used as a carrier, adsorbent, fixing agent, and feed additives. 


 Vermiculite products: product categories golden vermiculite, silver-white vermiculite; varieties of the vermiculite, vermiculite powder, horticultural vermiculite, mixed expansion of vermiculite. 

 The main models :1-3mm ,2-4mm ,10-20 mesh ,20-40 mesh ,40-60 mesh ,80-120 mesh and so on. 

 The nature and structure of the vermiculite 

 Vermiculite is a layered structure of water magnesium aluminum silicate secondary metamorphic minerals like mica, usually black (DRC) mica by hydrothermal alteration or weathering, because the heat dehydration ore outside The expansion was flexure-like shape resembles a leech, so called vermiculite. 

 Vermiculite, the chemical formula for M g × (H2O) [Mg3 × (AlSiO3O10) (H2O)] 

 Chemical composition as follows: 

 Formula of SiO2 MgO Al2O3 of Fe2O3 H2O, of CaO, the PH 

 The name of the silica magnesia alumina iron oxide water calcium oxide values 

 Content,% 37-42 11-23 9-17 3.5-15 5-11 1-2 7-1 

 Vermiculite vermiculite ore and expanded vermiculite stage divided by color into golden vermiculite, silver-white vermiculite 


 Stone, white vermiculite. 

 The vermiculite ore roasting at high temperatures its volume can be rapid expansion of 8-20 times expansion proportion 130-180kg/m3, has a strong insulation performance. 

 Two main purposes: 

 Agriculture: vermiculite can be used as a soil conditioner with good cation exchange and adsorption, can improve soil structure, water storage soil moisture, soil permeability and water content, acidic soils into neutral soil; vermiculite can also play a buffer role, hindering the rapid changes in the PH value slow release fertilizers in crop growth medium, and allow to slightly excessive use of fertilizers on the plants no harm; vermiculite can also be provided to the crop itself contains of K, Mg, Ca, Fe, and trace amounts of Mn and Cu, Zn elements. Vermiculite, absorbent, cation exchange and chemical composition characteristics, so that it plays a fat, water retention, water storage, permeability, and mineral fertilizers, and other multiple roles. The tests showed: 0.5% of the expanded vermiculite mixed with fertilizer, enable crop yields by 15-20%. 

 Horticultural aspects: as a horticultural vermiculite, its main role is to increase the aeration and water holding capacity of soil (media). Because of their fragile, with the extension of the use of time, easy to lose aeration and water retention medium dense, coarse vermiculite fine use of time, and the results are good. , Horticultural vermiculite should choose a larger flake vermiculite, even if small seed sowing medium and as a mulch to planting, are to coarse for good. 

 Vermiculite can be used for flowers, vegetables, fruit cultivation, breeding and other aspects. Addition for potting soil and regulators, but also for soilless culture. As a nutritional grass-roots to plant potted trees and commercial seedbed for transplanting and transporting of plants in particular. Vermiculite can effectively promote the stable development of the growth of plant roots and seedlings. A long time to provide the moisture necessary for plant growth and nutrition, and able to maintain the stability of the root sun temperature. Vermiculite allows crops from the initial stage of growth you can get plenty of moisture and minerals, to promote faster growth of plants to increase production. 

 Animal husbandry: the expanded vermiculite unique structural characteristics and surface properties, as well as non-toxic, sterile and chemically inert, can be used as a carrier, adsorbent, fixing agent, and feed additives. 

 Vermiculite use have been widely applied to the building, live gold, oil, shipbuilding, environmental protection, thermal insulation, thermal insulation, insulation, energy saving and other fields. Animal husbandry: the expanded vermiculite unique structural characteristics and surface properties, as well as non-toxic, sterile and chemically inert, can be used as a carrier, adsorbent, fixing agent, and feed additives. 

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