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Marble desulfurizing agent desulfurization method and byproduct cyclic utilization method thereof
The invention relates to a marble desulfurizing agent desulfurization method and a byproduct cyclic utilization method thereof. A marble desulfurizing agent is prepared by the following steps: precipitating into a slurry through a precipitation tank, squeezing into a mud cake by a filter press, and grinding into sand powder by a grinding machine. The marble desulfurizing agent is mixed with water,and dispersing is performed by using a high-speed liquid dispersing machine to prepare an absorption slurry with the solid content of 20-35%; in an absorption tower, flue gas containing sulfur dioxide is in spray contact with an absorbent slurry for physical and chemical reaction, and finally byproducts CaSO3 and CaSO4.2H2O crystals for curing sulfur dioxide are generated and fall into an absorption slurry circulating pool arranged at the bottom of the absorption tower. A large amount of air is blown in to forcibly oxidize CaSO3 to generate CaSO4.2H2O. The desulfurizing agent is premixed withmarble dry powder, so that the problems that the desulfurized gypsum is high in water content and high in viscosity, accumulated materials are blocked, the grading is poor, and the rheological property is poor after water is added are solved. The mixture is mixed with other raw materials to prepare putty powder and self-leveling mortar, and the putty powder and the self-leveling mortar are addedinto concrete as a filling early strength agent.
大理石脱硫剂脱硫方法及其副产物循环利用的方法。所述大理石脱硫剂，通过沉淀池沉淀成泥浆，压滤机压榨成泥饼，碾压机碾碎成砂粉状制得；大理石脱硫剂与水混合，通过高速液体分散机分散，制成含固量20～35％的吸收浆液；在吸收塔内，含二氧化硫的烟气与吸收剂浆液喷雾接触，进行物理、化学反应，最后生成了固化二氧化硫的副产物CaSO和CaSO.2HO晶体，并落入设置在吸收塔底部的吸收浆液循环池中。鼓入大量的空气强制氧化CaSO生成CaSO.2HO。通过与大理石干粉预混合，解决了脱硫石膏含水率高、黏性强，造成积料堵塞，级配较差加水后流变性能差的问题。混合料与其它原料混合制成腻子粉、自流平砂浆，作为填充早强剂加入到混凝土中。
Marble desulfurizing agent desulfurization method and byproduct cyclic utilization method thereof
The invention relates to a marble desulfurizing agent desulfurization method and a byproduct cyclic utilization method thereof. A marble desulfurizing agent is prepared by the following steps: precipitating into a slurry through a precipitation tank, squeezing into a mud cake by a filter press, and grinding into sand powder by a grinding machine. The marble desulfurizing agent is mixed with water,and dispersing is performed by using a high-speed liquid dispersing machine to prepare an absorption slurry with the solid content of 20-35%; in an absorption tower, flue gas containing sulfur dioxide is in spray contact with an absorbent slurry for physical and chemical reaction, and finally byproducts CaSO3 and CaSO4.2H2O crystals for curing sulfur dioxide are generated and fall into an absorption slurry circulating pool arranged at the bottom of the absorption tower. A large amount of air is blown in to forcibly oxidize CaSO3 to generate CaSO4.2H2O. The desulfurizing agent is premixed withmarble dry powder, so that the problems that the desulfurized gypsum is high in water content and high in viscosity, accumulated materials are blocked, the grading is poor, and the rheological property is poor after water is added are solved. The mixture is mixed with other raw materials to prepare putty powder and self-leveling mortar, and the putty powder and the self-leveling mortar are addedinto concrete as a filling early strength agent.
大理石脱硫剂脱硫方法及其副产物循环利用的方法。所述大理石脱硫剂，通过沉淀池沉淀成泥浆，压滤机压榨成泥饼，碾压机碾碎成砂粉状制得；大理石脱硫剂与水混合，通过高速液体分散机分散，制成含固量20～35％的吸收浆液；在吸收塔内，含二氧化硫的烟气与吸收剂浆液喷雾接触，进行物理、化学反应，最后生成了固化二氧化硫的副产物CaSO和CaSO.2HO晶体，并落入设置在吸收塔底部的吸收浆液循环池中。鼓入大量的空气强制氧化CaSO生成CaSO.2HO。通过与大理石干粉预混合，解决了脱硫石膏含水率高、黏性强，造成积料堵塞，级配较差加水后流变性能差的问题。混合料与其它原料混合制成腻子粉、自流平砂浆，作为填充早强剂加入到混凝土中。
Marble desulfurizing agent desulfurization method and byproduct cyclic utilization method thereof
大理石脱硫剂脱硫方法及其副产物循环利用的方法
LIN GUANGCHENG (author) / LIN MINGZHAO (author)
2020-07-03
Patent
Electronic Resource
Chinese
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