Filtration material for secondary filtration of beer and process for producing thereof The present invention relates to a filtration material for secondary filtration of beer containing diatomaceous earth and process if its making, wherein in the direction counter the flow of the filtered beer, said filtration material is made of a first layer of a coarse filtration diatomaceous earth with the thickness greater than 2 mm and an amount in the range of 0.66 to 1.05 kg/me2 of the filtering area, a second layer with the thickness greater than 2 mm created from a mixture of a fine filtration diatomaceous earth in the amount in the range of 0.55 to 1.20 kg/me2 of the filtering area and adsorption material in the amount in the range of 0.10 to 0.20 kg/me2 of the filtering area, a third filtration layer with the thickness greater than 1.5 mm created from a mixture of a coarse and fine filtration diatomaceous earth in the weight ratio ranging from 10 : 90 to 30 : 70 and in the amount in the ran

摘要

The present invention relates to a filtration material for secondary filtration of beer containing diatomaceous earth and process if its making, wherein in the direction counter the flow of the filtered beer, said filtration material is made of a first layer of a coarse filtration diatomaceous earth with the thickness greater than 2 mm and an amount in the range of 0.66 to 1.05 kg/me2 of the filtering area, a second layer with the thickness greater than 2 mm created from a mixture of a fine filtration diatomaceous earth in the amount in the range of 0.55 to 1.20 kg/me2 of the filtering area and adsorption material in the amount in the range of 0.10 to 0.20 kg/me2 of the filtering area, a third filtration layer with the thickness greater than 1.5 mm created from a mixture of a coarse and fine filtration diatomaceous earth in the weight ratio ranging from 10 : 90 to 30 : 70 and in the amount in the range of 0.30 to 0.50 kg/me2 of the filtering area and adsorption material in the amount in the range of 0.03 to 0.06 kg/me2 of the filtering area, whereby the first to the third layers are compacted by the flow of 25 to 45 hl/h/me2, a fourth layer created from a mixture of a coarse and fine filtration diatomaceous earth and adsorption material, with the thickness growing during the beer filtration with the addition of the mixture of a coarse and fine filtration diatomaceous earth and adsorption material in the amount of 0.015 to 0.03 kg per 1 hl of beer.