Pyrite beneficiation tailing autoclaved sand-lime brick and production process thereof
An autoclaved lime-sand brick and a production process technology, which are applied in the field of building materials, can solve the problems of blank industrial application, no production technology and method of pyrite beneficiation tailings, etc., and achieve obvious energy-saving effects, low cost, and easy-to-obtain raw materials Effect
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Embodiment 1
[0025] The pyrite beneficiation tailings autoclaved lime-sand brick provided in this embodiment is made of the following raw materials in parts by weight: 85 parts of pyrite beneficiation tailings and 12 parts of lime.
[0026] The production process of the lime-sand brick is:
[0027] (1) Raw material preparation: mix the crushed lime with a lime ball mill and store it in a lime tank for later use. The fineness of the lime after ball milling is 3500-4000cm 2 / g;
[0028] (2) Raw material measurement and digestion: according to the above formulas, the volume of a digestion bin (4.0m 3 ) calculation, according to the weight ratio, electronically measure 2630kg of pyrite dressing tailings and 370kg of lime, then stir it with 115kg of water, store it in the digestion bin for 2 hours, and add water for the first time. 25.5% of the total water, The total addition is 15% of the total weight of the dry material;
[0029] (3) Secondary stirring and forming: add 335kg of water to th...
Embodiment 2
[0037] The pyrite mineral processing tailings autoclaved lime-sand brick provided in this embodiment comprises the following raw materials in parts by weight: 50 parts of pyrite mineral processing tailings, 35 parts of sea sand, 15 parts of lime, and sea sand needs to be prepared before use. After ball milling, the fineness of the sea sand after ball milling is less than 20% of the 0.08mm square hole sieve, and all of them can pass through the 0.2mm square hole sieve. 2 / g, pyrite beneficiation tailings can be used without ball milling.
[0038] The production process of the lime-sand brick is:
[0039] (1) Preparation of raw materials: grind the river sand through a mortar ball mill, and store it in a sand tank for later use; mix the crushed lime according to the above ratio, mix it with a lime ball mill, and store it in a lime tank for later use ;
[0040] (2) Raw material measurement and digestion: according to the above formulas, the volume of a digestion bin (4.0m 3 ) ...
Embodiment 3
[0049] The pyrite ore dressing tailings autoclaved lime sand brick provided in this embodiment comprises the following raw materials in parts by weight: 30 parts of pyrite dressing tailings, 55 parts of river sand, 15 parts of lime, and the river sand needs to be After ball milling, the fineness of the river sand after ball milling is 0.08mm square hole sieve and the residue is less than 20%, and all of them can pass through the 0.2mm square hole sieve. 2 / g.
[0050] The production process of the lime-sand brick is:
[0051] (1) Preparation of raw materials: grind the river sand through a mortar ball mill, and store it in a sand tank for later use; mix the crushed lime according to the above ratio, mix it with a lime ball mill, and store it in a lime tank for later use ;
[0052] (2) Raw material measurement and digestion: according to the above formulas, the volume of a digestion bin (4.0m 3 ) calculation, according to the weight ratio, electronically measure 900kg of pyr...
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