Preparation method of diatomite silicon dioxide
A silica and diatomite technology, applied in the direction of silica, silica, etc., can solve the problems of diatomite beer filter aid consumption, undiscovered development and utilization waste residue, environmental pollution, etc.
Inactive Publication Date: 2007-03-07
刘怀珠
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Problems solved by technology
[0003] In order to overcome the existing national annual production capacity of beer of 30 million tons, the annual consumption of diatomite beer filter aid is 50,000 tons, and the diatomite filter aid after filtering beer is waste residue, which takes up a large amount of land and is piled up , because the waste residue contains a large amount of organic substances and causes environmental pollution, the development and utilization of the waste residue has not yet been found
Method used
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Embodiment
[0019] Example: the diatomite filter aid after filtering beer is waste residue, which is collected, washed with water, removed from impurities, dried to remove water, added with 3-50% soda ash for high-temperature melting at a temperature of 900-1200°C, and cultivated The burning time is 2 hours, the discharged material is cooled, crushed into 80-400 mesh according to different purposes, and then separated into diatomite silica by cyclone separator.
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The invention discloses a diatomite silica, which is characterized by the following: adopting diatomite adjuvant of filtered beer as slag; collecting; washing; removing impurity; drying to remove water; adding 3-50% pure alkaline; fusing through high temperature at 900-1200 deg.c; sintering for 2h; cooling; grinding into 80-400 order according to different utilities; separating the diatomite silica through cyclone separator.
Description
technical field [0001] The invention relates to the technical field of environmental protection, in particular to a method for preparing diatomite silica. Background technique [0002] At present, the national annual production capacity of beer is 30 million tons, and the annual consumption of diatomite beer filter aid is 50,000 tons. The diatomite filter aid after filtering beer is waste residue, which occupies a large amount of land and is piled up. It contains a large amount of organic substances and causes environmental pollution. At present, no development and utilization of this waste residue has been found. Contents of the invention [0003] In order to overcome the existing national annual production capacity of beer of 30 million tons, the annual consumption of diatomite beer filter aid is 50,000 tons, and the diatomite filter aid after filtering beer is waste residue, which takes up a large amount of land and is piled up , because the waste residue contains a la...
Claims
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Inventor 刘怀珠
Owner 刘怀珠