Nano crystallite composite filter material
A technology of nano-microcrystalline and composite filter materials, applied in the direction of filtration and separation, chemical instruments and methods, separation methods, etc., can solve the problems of high cost, low effect, and single function, and achieve low price, wide application, and low energy consumption Effect
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Embodiment 1
[0028] The basic nano-microcrystalline composite filter material for advanced drinking water filter material is characterized by attapulgite clay or sepiolite with an equal weight ratio of 70% by weight, and the dosage of attapulgite and sepiolite clay can be replaced by each other, 20 % by weight of diatomite, 10% by weight of expanded perlite. After fully mixing, add water glass solution as a binder, and roll and granulate in rolling granulation equipment. After aging for 24 hours, it is sent to the kiln for roasting and activation. The heating curve is to raise the temperature to 150°C and keep the temperature for 30 minutes, and then heat to 500°C and keep the temperature for 2 hours.
[0029] In this example, attapulgite clay is partially or completely replaced by sepiolite clay, because the properties, crystal structure and composition of the two are very similar. Such substitutions will not alter product performance. Expanded perlite is added to the water-permeable m...
Embodiment 2
[0031] The water quality improving agent nano-microcrystalline composite filter material is characterized by 30% by weight of attapulgite clay, 20% by weight of natural zeolite, 20% by weight of pillared montmorillonite, and 20% by weight of expanded vermiculite , 10% diatomaceous earth by weight. Add binder and roll to granulate, and activate by roasting at 500°C.
[0032] The characteristic of this example is that zeolite, pillared montmorillonite, and expanded vermiculite are added in a large proportion, so the cation exchangeability of the material is greatly enhanced. It is used for special purposes such as water softening and ion exchange.
Embodiment 3
[0034] The nano-microcrystalline composite filter material for drinking water purifying agent is characterized in that attapulgite clay with a weight ratio of 50%, diatomite with a weight ratio of 25%, and bamboo charcoal debris or bamboo debris with a weight ratio of 25% are fully mixed and then added The water glass solution is used as a binder and rolled and granulated in the rolling granulation equipment. After aging for 24 hours, it is sent to the kiln for roasting and activation. The heating curve is to raise the temperature to 150°C and keep the temperature for 30 minutes, start to pass inert gas, heat to 500°C and keep the temperature for 2 hours, stop the inert gas protection when the temperature is below 120°C, and cool down to room temperature naturally.
[0035] In this example, bamboo charcoal or bamboo chips are introduced instead of activated carbon powder, and the effect is basically the same. The filter material with bamboo chips as raw material has higher por...
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