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Production of chamotte and kaolin:
- is made in a rotary kiln at a temperature of about 1,350 °C
- the main advantage of the rotary kiln is the homogenous burning of the batch of raw materials
- this provides the specific properties such as
- low loss on ignition
- high bulk density
- low water absorption
These parameters, together with high refractoriness, allow our products to be used in a wide range of industries such as the production of:
- refractory bricks, blocks and tiles
- castables
- foundry moulds
- ceramics mixtures
- materials for the production of sanitary ceramics
- sanitary ceramics or electro porcelain
- finely ground for glazes
To improve the quality is the burnt clay magnetically separated.
Through the subsequent sorting and grinding we may deliver Chamotte and Kaolin in many size distributions:
- coarse (0-60 mm)
- fine (0-1 / 1-3 / 3-6 mm)
- precise sorting with assured oversized and undersized content as well as guaranteed internal composition (0,1-0,5 / 0,25-0,63 / AFS)
- finely milled (10 - 100 microns)
To protect the products from iron contamination the mill is lined with a high alumina lining and we use grinding balls made from high alumina material.
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Granulation
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Granulometry - typical fraction (mm)
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Coarse
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5-18; 15-30; 0-10; 0-20; 0-30; 0-50; 0-60
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Fine
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0-1; 1-3; 3-6; and combinations of these fractions
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Precise
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0,1-0,5; 0,25-0,63; 0,5-1; 0,3-0,8; 0,5-1,5; AFS
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- mixture AFS 50
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0,5–2,66%; 0,355–33,23%; 0,25–37,58%;
0,18–8,24%; 0,125–8,02%; 0,09–0,1%;
0,063–0,07%; 0-0,063–0,1%
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- mixture AFS 65
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0,3555–5%; 0,25–29,7%; 0,15–37%;
0,125–24%;0,09–3,5%; 0,063–0,5%;
0,063–0,3%
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Finely milled
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0-0,1; 0-0,09; 0-0,075; 0-0,063; 0-0,05; 0-0,045; 0-0,02
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