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Method for preparing composite mineral admixture from water-quenched converter slag
The invention discloses a method for preparing a composite mineral admixture from water-quenched converter slag, which comprises the following process steps: preparation of water-quenched converter slag and granulated blast furnace slag, preparation of sodium hydroxide, preparation of desulfurized gypsum, preparation of calcium citrate, preparation of a cement additive, and preparation of magnesium sulfate and ferric hydroxide. The preparation method comprises the following steps: proportionally grinding, homogenizing and mixing water-quenched converter slag, granulated blast-furnace slag, desulfurized gypsum, a cement additive, silica fume, fly ash, manganese alloy slag, cement clinker, limestone mining debris and a composite chemical strength exciting agent; the specific surface area and the activity index are effectively improved by utilizing the activity index increase of the granulated blast furnace slag, the excitation effect of the desulfurized gypsum and the grinding aiding effect and the chemical excitation effect of the cement additive, and the composite mineral admixture with the specific surface area of 450-500m < 2 >/kg is obtained. A large amount of discharged converter slag is fully and reasonably utilized, environmental pollution is reduced, and meanwhile the brittleness coefficient and freezing resistance of the concrete are improved.
本发明公开了一种水淬转炉渣制备复合矿物掺合料的方法，包括水淬转炉渣和粒化高炉矿渣的制备、氢氧化钠的制备、脱硫石膏的制备、柠檬酸钙的制备、水泥添加剂的制备、硫酸镁和氢氧化铁的制备工艺步骤，按比例粉磨、均化混合水淬转炉渣、粒化高炉矿渣、脱硫石膏、水泥添加剂、硅灰、粉煤灰、锰合金矿渣、水泥熟料、石灰石采矿碎屑和复合化学强度激发剂，利用粒化高炉矿渣增加活性指数、脱硫石膏的激发作用、水泥添加剂的助磨作用和化学激发作用，从而有效提高比表面积和活性指数，得到比表面积为450‑500m2/kg的复合矿物掺合料；本发明充分合理利用大量排放的转炉渣，减少环境污染的同时改良了混凝土的脆性系数和抗冻性。
Method for preparing composite mineral admixture from water-quenched converter slag
The invention discloses a method for preparing a composite mineral admixture from water-quenched converter slag, which comprises the following process steps: preparation of water-quenched converter slag and granulated blast furnace slag, preparation of sodium hydroxide, preparation of desulfurized gypsum, preparation of calcium citrate, preparation of a cement additive, and preparation of magnesium sulfate and ferric hydroxide. The preparation method comprises the following steps: proportionally grinding, homogenizing and mixing water-quenched converter slag, granulated blast-furnace slag, desulfurized gypsum, a cement additive, silica fume, fly ash, manganese alloy slag, cement clinker, limestone mining debris and a composite chemical strength exciting agent; the specific surface area and the activity index are effectively improved by utilizing the activity index increase of the granulated blast furnace slag, the excitation effect of the desulfurized gypsum and the grinding aiding effect and the chemical excitation effect of the cement additive, and the composite mineral admixture with the specific surface area of 450-500m < 2 >/kg is obtained. A large amount of discharged converter slag is fully and reasonably utilized, environmental pollution is reduced, and meanwhile the brittleness coefficient and freezing resistance of the concrete are improved.
本发明公开了一种水淬转炉渣制备复合矿物掺合料的方法，包括水淬转炉渣和粒化高炉矿渣的制备、氢氧化钠的制备、脱硫石膏的制备、柠檬酸钙的制备、水泥添加剂的制备、硫酸镁和氢氧化铁的制备工艺步骤，按比例粉磨、均化混合水淬转炉渣、粒化高炉矿渣、脱硫石膏、水泥添加剂、硅灰、粉煤灰、锰合金矿渣、水泥熟料、石灰石采矿碎屑和复合化学强度激发剂，利用粒化高炉矿渣增加活性指数、脱硫石膏的激发作用、水泥添加剂的助磨作用和化学激发作用，从而有效提高比表面积和活性指数，得到比表面积为450‑500m2/kg的复合矿物掺合料；本发明充分合理利用大量排放的转炉渣，减少环境污染的同时改良了混凝土的脆性系数和抗冻性。
Method for preparing composite mineral admixture from water-quenched converter slag
一种水淬转炉渣制备复合矿物掺合料的方法
LIANG KUNYUE (author) / HUANG MINRONG (author) / LI JIANRONG (author) / LIU XIANGDONG (author) / LIANG GUOAN (author) / XIE WENYAN (author) / LIN GUOLANG (author) / JU YOUNG-SEOK (author) / CHEN KANGMEN (author)
2023-04-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
C01D
Verbindungen der Alkalimetalle, d.h. des Lithiums, Natriums, Kaliums, Rubidiums, Cäsiums oder Franciums
,
COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
/
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C01G
Verbindungen der von den Unterklassen C01D oder C01F nicht umfassten Metalle
,
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
/
C07C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
,
Acyclische oder carbocyclische Verbindungen
/
C21B
Gewinnung von Eisen oder Stahl
,
MANUFACTURE OF IRON OR STEEL
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