Method for producing ceramic glazed tile from coal slag by double sintering
A technology of ceramic glaze and cinder, which is applied in the field of producing ceramic tiles, can solve the problems of low utilization rate of cinder, achieve the effect of saving mineral raw materials and good economic benefits
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Embodiment 1
[0022] The raw material formula of the present invention is:
[0023] Cinder 50g
[0024] Albite 10g
[0025] Kaolin 20g
[0027] Such as figure 1 As shown, after cinder, kaolin, potassium feldspar and albite are crushed, they are mixed with 0.3g sodium hydroxymethylcellulose and 0.3g sodium tripolyphosphate for wet ball milling according to the formula, and the ratio of material ball to water is 1:1: 7. The wet-milled slurry can pass through a 60-mesh sieve, spray-dry after wet-milling, and dry-press the sprayed powder into a size of 600mm*600mm*11mm. After drying, the moisture content of the green body is <0.1 %, into a low-temperature roller kiln for biscuit firing, the sintering temperature is 1055°C, and the firing time is 165min. After biscuit firing, the green body is glazed and dried for 30 minutes, and then glazed and fired in a high-temperature roller kiln. The sintering temperature is 1215°C and the firing time is 55 minutes. Th...
Embodiment 2
[0028] The raw material formula of the present invention is:
[0029] Cinder 53g
[0030] Albite 12g
[0031] Kaolin 10g
[0032] Potassium feldspar 25g
[0033] Such as figure 1 As shown, after crushing cinder, kaolin, potassium feldspar and albite, according to the formula, mix with 0.3g sodium hydroxymethylcellulose and 0.3g sodium tripolyphosphate for wet ball milling, the ratio of material ball to water is 1:1 : 7, the wet-milled slurry can pass through a 60-mesh sieve, spray-dry after wet-milling, and dry-press the sprayed powder into a size of 600mm*600mm*11mm. After drying, the moisture content of the green body is < 0.1%, into the low-temperature roller kiln biscuit firing, the sintering temperature is 1075 ℃, and the firing time is 165min. After bisque firing, the green body is sprayed with glaze, printed and decorated, dried for 30 minutes, and then glazed and fired in a high-temperature roller kiln. The sintering temperature is 1210°C and the firing time is 55...
Embodiment 3
[0035] The raw material formula of the present invention is:
[0036] Cinder 55g
[0037] Albite 15g
[0038] Kaolin 15g
[0039] Potassium feldspar 15g
[0040] Such as figure 1 As shown, after cinder, kaolin, potassium feldspar and albite are crushed, they are mixed with 0.3g sodium hydroxymethylcellulose and 0.3g sodium tripolyphosphate for wet ball milling according to the formula, and the ratio of material ball to water is 1:1: 7. The wet-milled slurry can pass through a 60-mesh sieve, spray-dry after wet-milling, and dry-press the sprayed powder into a size of 600mm*600mm*11mm. After drying, the moisture content of the green body is <0.1 %, into the low-temperature roller kiln biscuit firing, the sintering temperature is 1060 ℃, and the firing time is 165min. After bisque firing, the green body is glazed and dried for 30 minutes, and then glazed and fired in a high-temperature roller kiln. The sintering temperature is 1200 ° C and the firing time is 55 minutes. The...
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