Semidry-process sintering desulphurization slag autoclaved building block and production method thereof
A technology of sintering desulfurization ash and semi-dry method, which is applied in the direction of manufacturing tools and ceramic molding machines, etc. It can solve the problems of land occupation for desulfurization ash building materials, low production cost, and high brick strength, so as to improve processing and disposal efficiency and production The effect of low cost and large amount of mixing
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Embodiment 1
[0018] Take the sintered semi-dry desulfurization ash from the iron and steel plant, dry it, and use it for later use. Dry in an oven at 85°C for 2 hours and grind it into slag powder, and control its specific surface area to not less than 450m 2 / kg, spare. Steel slag from iron and steel enterprises is taken, crushed and magnetically separated, and used for standby. The finished melon rice stones are purchased in the market, washed with water to remove the mud, and set aside. Weigh 20kg of semi-dry desulfurization ash, 30kg of slag micropowder, 40kg of steel slag, and 10kg of melon stone. Put various raw materials into the mixer at the same time according to the ratio of raw materials, add 7.5kg of water and mix well. Then it is formed by vibration and pressure of the brick making machine, and steamed after forming. During the steaming process, the temperature is raised from room temperature at a rate of 40°C / h to 110°C, and then the temperature is kept at a constant temper...
Embodiment 2
[0020] Take the sintered semi-dry desulfurization ash from the iron and steel plant, dry it, and use it for later use. Dry in an oven at 85°C for 2 hours and grind it into slag powder, and control its specific surface area to not less than 450m 2 / kg, spare. Steel slag from iron and steel enterprises is taken, crushed and magnetically separated, and used for standby. The finished melon rice stones are purchased in the market, washed with water to remove the mud, and set aside. Weigh 12kg of semi-dry desulfurization ash, 28kg of slag micropowder, 50kg of steel slag, and 10kg of melon stone, put various raw materials into the mixer at the same time according to the raw material ratio, add 8.12kg of water and mix well. Then it is formed by vibration and pressure of the brick making machine, and steamed after forming. During the steaming process, the temperature is raised from room temperature to 105 °C at a heating rate of 35 °C / h, kept at a constant temperature for 6 hours, an...
Embodiment 3
[0022] Take the sintered semi-dry desulfurization ash from the iron and steel plant, dry it, and use it for later use. Dry in an oven at 85°C for 2 hours and grind it into slag powder, and control its specific surface area to not less than 450m 2 / kg, spare. Steel slag from iron and steel enterprises is taken, crushed and magnetically separated, and used for standby. The finished melon rice stones are purchased in the market, washed with water to remove the mud, and set aside. Weigh 25kg of semi-dry desulfurization ash, 30kg of slag micropowder, and 45kg of steel slag, put all kinds of raw materials into the mixer at the same time according to the ratio of raw materials, add 6.6kg of water to mix and stir evenly. Then it is formed by vibration and pressure of a brick machine, and steamed after forming. During the steaming process, the temperature is raised from room temperature to 120 °C at a heating rate of 40 °C / h, kept at a constant temperature for 6 hours, and then lower...
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