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A platform for research: civil engineering, architecture and urbanism
Flue gas desulfurization gypsum and ardealite mixed calcination process
The invention discloses a flue gas desulfurization gypsum and ardealite mixed calcining process. The process specifically comprises the following steps: weighing 1-100 parts by weight of ardealite and 1-100 parts by weight of flue gas desulfurization gypsum for later use; the preparation method comprises the following steps: drying selected ardealite and desulfurized gypsum at 100-110 DEG C for 3-5 hours, cooling, and sieving with a 0.6 mm square hole sieve; grinding residues on the sieve by using a mortar for not less than 1min, and then sieving by using a 0.6 mm square hole sieve; collecting the undersize part, and uniformly mixing; uniformly mixing the sieved flue gas desulfurization gypsum and ardealite, and calcining in a calcining furnace at a constant temperature of 130-170 DEG C for 4-6 hours; after calcining, naturally cooling, and treating in a ball mill for 20-40 minutes; and paving the mixture, and aging the mixture indoors for 20-30 hours. According to the flue gas desulfurization gypsum and ardealite mixed calcining process, flue gas desulfurization gypsum and ardealite are further recycled, and the ardealite and flue gas desulfurization gypsum are mixed and calcined, so that the overall gypsum particle distribution is changed, and the defects of long coagulation time, low strength, poor fluidity and large water demand for standard consistency can be overcome; and the quality performance of processed building material products is improved.
本发明公开了一种脱硫石膏与磷石膏混合煅烧工艺，具体包括以下步骤：按照重量份称取磷石膏1‑100份和脱硫石膏1‑100份备用；将选用磷石膏和脱硫石膏100‑110℃烘干3‑5h，冷却后过0.6mm方孔筛；筛余用研钵研磨，研磨时间不低于1min，然后过0.6mm方孔筛；收集筛下部分，混匀；过筛后的脱硫石膏和磷石膏混合均匀，进入煅烧炉在130‑170℃范围内恒温煅烧4‑6h；煅烧后自然冷却，放入球磨机处理20‑40min；铺平放置于室内陈化20‑30h。该脱硫石膏与磷石膏混合煅烧工艺，对脱硫石膏和磷石膏进行进一步的循环利用，通过将磷石膏与脱硫石膏混合煅烧，改变了整体石膏颗粒分布，有助于克服凝结时间长、强度低、流动性差、标准稠度需水量大的缺点，提高加工建筑材料产品的质量性能。
Flue gas desulfurization gypsum and ardealite mixed calcination process
The invention discloses a flue gas desulfurization gypsum and ardealite mixed calcining process. The process specifically comprises the following steps: weighing 1-100 parts by weight of ardealite and 1-100 parts by weight of flue gas desulfurization gypsum for later use; the preparation method comprises the following steps: drying selected ardealite and desulfurized gypsum at 100-110 DEG C for 3-5 hours, cooling, and sieving with a 0.6 mm square hole sieve; grinding residues on the sieve by using a mortar for not less than 1min, and then sieving by using a 0.6 mm square hole sieve; collecting the undersize part, and uniformly mixing; uniformly mixing the sieved flue gas desulfurization gypsum and ardealite, and calcining in a calcining furnace at a constant temperature of 130-170 DEG C for 4-6 hours; after calcining, naturally cooling, and treating in a ball mill for 20-40 minutes; and paving the mixture, and aging the mixture indoors for 20-30 hours. According to the flue gas desulfurization gypsum and ardealite mixed calcining process, flue gas desulfurization gypsum and ardealite are further recycled, and the ardealite and flue gas desulfurization gypsum are mixed and calcined, so that the overall gypsum particle distribution is changed, and the defects of long coagulation time, low strength, poor fluidity and large water demand for standard consistency can be overcome; and the quality performance of processed building material products is improved.
本发明公开了一种脱硫石膏与磷石膏混合煅烧工艺，具体包括以下步骤：按照重量份称取磷石膏1‑100份和脱硫石膏1‑100份备用；将选用磷石膏和脱硫石膏100‑110℃烘干3‑5h，冷却后过0.6mm方孔筛；筛余用研钵研磨，研磨时间不低于1min，然后过0.6mm方孔筛；收集筛下部分，混匀；过筛后的脱硫石膏和磷石膏混合均匀，进入煅烧炉在130‑170℃范围内恒温煅烧4‑6h；煅烧后自然冷却，放入球磨机处理20‑40min；铺平放置于室内陈化20‑30h。该脱硫石膏与磷石膏混合煅烧工艺，对脱硫石膏和磷石膏进行进一步的循环利用，通过将磷石膏与脱硫石膏混合煅烧，改变了整体石膏颗粒分布，有助于克服凝结时间长、强度低、流动性差、标准稠度需水量大的缺点，提高加工建筑材料产品的质量性能。
Flue gas desulfurization gypsum and ardealite mixed calcination process
一种脱硫石膏与磷石膏混合煅烧工艺
CHEN CHANGXIN (author) / XIAO RUNSHENG (author)
2023-07-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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