Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for producing gravel aggregate from red mud
The invention discloses a method for producing gravel aggregate from red mud, which comprises the following steps: S1, pretreatment: dealkalizing and modifying the red mud, and carrying out acid-base neutralization reaction on multi-phase acidic waste and the red mud; s2, primary separation: carrying out solid-liquid-gas separation on a product obtained by carrying out acid-base neutralization reaction on the red mud and the multi-phase acidic waste; s3, the solid and the liquid separated in the step S2 are subjected to secondary separation through an electromagnetic separator and a gravity separator, the solid is separated into a metal object and a non-metal object, and the liquid is separated into a metal object, a non-metal object and purified water; s4, respectively carrying out pyrolytic reaction on the non-metal substances; and S5, carrying out activation treatment on the non-metal substance to prepare the gravel aggregate. The method has the advantages that the red mud can be fully treated, the purpose of treating waste with waste and preparing the high-quality gravel aggregate is achieved through the multi-phase acidic waste, red mud treatment is efficient, environment friendliness is achieved, and resources are saved.
本发明公开了一种赤泥用于生产砂石骨料的方法，包括以下步骤：S1、预处理，对赤泥进行脱碱改性，将多相态酸性废物与赤泥进行酸碱中和反应；S2、初级分离，将赤泥与多相态酸性废物酸碱中和反应后产物进行固液气分离；S3、将步骤S2中分离出的固体和液体分别通过电磁分离器与重选器进行二次分离，并将固体分离为金属物和非金属物，将液体分为金属物、非金属和净化水；S4、对非金属物分别进行热解反应；S5、将非金属物进行活化石化处理制成砂石骨料。本发明具有能充分处理赤泥，利用多相态酸性废物达到已废治废并制成高质量的砂石骨料、处理赤泥高效，对环境友好节约资源的优点。
Method for producing gravel aggregate from red mud
The invention discloses a method for producing gravel aggregate from red mud, which comprises the following steps: S1, pretreatment: dealkalizing and modifying the red mud, and carrying out acid-base neutralization reaction on multi-phase acidic waste and the red mud; s2, primary separation: carrying out solid-liquid-gas separation on a product obtained by carrying out acid-base neutralization reaction on the red mud and the multi-phase acidic waste; s3, the solid and the liquid separated in the step S2 are subjected to secondary separation through an electromagnetic separator and a gravity separator, the solid is separated into a metal object and a non-metal object, and the liquid is separated into a metal object, a non-metal object and purified water; s4, respectively carrying out pyrolytic reaction on the non-metal substances; and S5, carrying out activation treatment on the non-metal substance to prepare the gravel aggregate. The method has the advantages that the red mud can be fully treated, the purpose of treating waste with waste and preparing the high-quality gravel aggregate is achieved through the multi-phase acidic waste, red mud treatment is efficient, environment friendliness is achieved, and resources are saved.
本发明公开了一种赤泥用于生产砂石骨料的方法，包括以下步骤：S1、预处理，对赤泥进行脱碱改性，将多相态酸性废物与赤泥进行酸碱中和反应；S2、初级分离，将赤泥与多相态酸性废物酸碱中和反应后产物进行固液气分离；S3、将步骤S2中分离出的固体和液体分别通过电磁分离器与重选器进行二次分离，并将固体分离为金属物和非金属物，将液体分为金属物、非金属和净化水；S4、对非金属物分别进行热解反应；S5、将非金属物进行活化石化处理制成砂石骨料。本发明具有能充分处理赤泥，利用多相态酸性废物达到已废治废并制成高质量的砂石骨料、处理赤泥高效，对环境友好节约资源的优点。
Method for producing gravel aggregate from red mud
一种赤泥用于生产砂石骨料的方法
JIANG SUI'AN (Autor:in) / JIANG DONGSHENG (Autor:in) / JIANG DONGRUI (Autor:in)
21.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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