Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a pretreatment method of ardealite for gypsum plaster board production, which comprises the following treatment steps: washing treatment: washing the ardealite with warm water,rinsing the ardealite in a slurrying tank, stirring the ardealite with a tool to disperse the ardealite, standing for precipitation, and then using a water pump for pumping away water on the surface.When the ardealite is neutralized, a mode of combining lime with low-concentration sulfuric acid is adopted to achieve an effect of modifying the ardealite, and the effect of neutralizing and modifying the ardealite can be achieved by only adding the lime for primary reaction and then continuously adding the low-concentration sulfuric acid, so that the effect of neutralizing and modifying the ardealite can be achieved by combining the lime with the low-concentration sulfuric acid. According to the method, the phosphorus, fluorine and other harmful substances contained in the ardealite can bewell removed, impurities such as phosphorus, fluorine and green substances in the ardealite are removed in a screening mode in the follow-up process, and the pretreatment method is easy and convenientto operate and high in practicability.
本发明公开了一种纸面石膏板生产用磷石膏的预处理方法，处理步骤包括如下：水洗处理：首先将磷石膏进行温水洗涤，将磷石膏放置在化浆池中进行漂洗，然后使用工具对磷石膏进行搅拌，使其可以分散开来，接着静置沉淀，然后采用抽水机将表面的水抽掉。本发明通过在对磷石膏中和时，采用石灰结合低浓度硫酸的方式，来达到将磷石膏改性的效果，只需要首先加入石灰进行初次反应，然后继续加入低浓度的硫酸，这样二者相互结合的方式即可实现对磷石膏中和改性的效果，从而可以较好的去除磷石膏中含有的可溶磷和氟等有害物质，并且在后续中采用筛分的方式，来将磷石膏中的磷、氟、绿色物等杂质剔除掉，此种预处理方法操作简单便捷，实用性较强。
The invention discloses a pretreatment method of ardealite for gypsum plaster board production, which comprises the following treatment steps: washing treatment: washing the ardealite with warm water,rinsing the ardealite in a slurrying tank, stirring the ardealite with a tool to disperse the ardealite, standing for precipitation, and then using a water pump for pumping away water on the surface.When the ardealite is neutralized, a mode of combining lime with low-concentration sulfuric acid is adopted to achieve an effect of modifying the ardealite, and the effect of neutralizing and modifying the ardealite can be achieved by only adding the lime for primary reaction and then continuously adding the low-concentration sulfuric acid, so that the effect of neutralizing and modifying the ardealite can be achieved by combining the lime with the low-concentration sulfuric acid. According to the method, the phosphorus, fluorine and other harmful substances contained in the ardealite can bewell removed, impurities such as phosphorus, fluorine and green substances in the ardealite are removed in a screening mode in the follow-up process, and the pretreatment method is easy and convenientto operate and high in practicability.
本发明公开了一种纸面石膏板生产用磷石膏的预处理方法，处理步骤包括如下：水洗处理：首先将磷石膏进行温水洗涤，将磷石膏放置在化浆池中进行漂洗，然后使用工具对磷石膏进行搅拌，使其可以分散开来，接着静置沉淀，然后采用抽水机将表面的水抽掉。本发明通过在对磷石膏中和时，采用石灰结合低浓度硫酸的方式，来达到将磷石膏改性的效果，只需要首先加入石灰进行初次反应，然后继续加入低浓度的硫酸，这样二者相互结合的方式即可实现对磷石膏中和改性的效果，从而可以较好的去除磷石膏中含有的可溶磷和氟等有害物质，并且在后续中采用筛分的方式，来将磷石膏中的磷、氟、绿色物等杂质剔除掉，此种预处理方法操作简单便捷，实用性较强。
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