Lightweight sand and production process thereof
A production process and technology of light sand, applied in the field of light sand, can solve the problems of cumbersome production process of light sand, and achieve the effects of reducing calcination time, simplifying the process and facilitating production
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Embodiment 1
[0019] A kind of light sand, its raw material is as follows by weight: 15 parts of light stone, 1 part of inorganic silicate, 1 part of inorganic phosphate, 1 part of water, 0.2 part of iron oxide.
[0020] The inorganic silicate is calcium silicate. The inorganic phosphate is calcium phosphate.
[0021] The present invention also provides a manufacturing process of lightweight sand, comprising the steps of:
[0022] S1: Crushing light stones into blocks with a diameter of 2 cm, and going through winnowing to remove powders other than blocks;
[0023] S2: Mixing of materials, mixing the crushed light stone with inorganic phosphate, organic silicate, water and iron oxide;
[0024] S3: Use a rotary kiln for calcination, put the uniformly mixed materials into the rotary kiln for calcination, the rotating speed of the rotary kiln is 260r / min, and the temperature in the rotary kiln is 700°C;
[0025] S4: Cool down, use natural cooling to cool down, and wait for the temperature t...
Embodiment 2
[0030] A kind of light sand, its raw material is as follows by weight: 16 parts of light stone, 1.2 parts of inorganic silicate, 1.5 parts of inorganic phosphate, 1.3 parts of water, 0.4 part of iron oxide.
[0031] The inorganic silicate is calcium silicate. The inorganic phosphate is calcium phosphate.
[0032] The present invention also provides a manufacturing process of lightweight sand, comprising the steps of:
[0033] S1: Crushing light stones into blocks with a diameter of 4cm, and going through winnowing to remove powders other than blocks;
[0034] S2: Mixing of materials, mixing the crushed light stone with inorganic phosphate, organic silicate, water and iron oxide;
[0035] S3: Use a rotary kiln for calcination, put the uniformly mixed materials into the rotary kiln for calcination, the rotating speed of the rotary kiln is 280r / min, and the temperature in the rotary kiln is 800°C;
[0036] S4: Cool down, use natural cooling to cool down, and wait for the tempe...
Embodiment 3
[0041] A kind of light sand, its raw material is as follows by weight: 18 parts of light stone, 1.5 parts of inorganic silicate, 2 parts of inorganic phosphate, 1.5 parts of water, 0.5 part of iron oxide.
[0042] The inorganic silicate is calcium silicate. The inorganic phosphate is calcium phosphate.
[0043] The present invention also provides a manufacturing process of lightweight sand, comprising the steps of:
[0044] S1: Crushing light stones into blocks with a diameter of 5 cm, and going through wind selection to remove powders other than blocks;
[0045] S2: Mixing of materials, mixing the crushed light stone with inorganic phosphate, organic silicate, water and iron oxide;
[0046] S3: Use a rotary kiln for calcination, put the uniformly mixed materials into the rotary kiln for calcination, the rotating speed of the rotary kiln is 300r / min, and the temperature in the rotary kiln is 870°C;
[0047] S4: Cool down, use natural cooling to cool down, and wait for the t...
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