Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing baking-free brick from offshore drilling waste mud
The invention discloses a method for preparing a baking-free brick from offshore drilling waste mud. The method comprises the following steps: S1, carrying out solid-liquid separation on the offshore drilling waste mud, and carrying out filter pressing dehydration on a solid-phase substance to obtain a filter cake; S2, drying , crushing, ball-milling and washing the filter cake to remove chloride ions, and obtaining a base material; S3, adding cement, gypsum, polyvinyl alcohol and aggregate into the base material, uniformly mixing to obtain a mixture, and adding water into the mixture to obtain a semi-dry mixture; wherein the aggregate comprises coarse aggregate and fine aggregate; the coarse aggregate is crushed pebbles, the particle size distribution is between 5mm and 10mm, and the bulk density is 1663kg/m < 3 >; the fine aggregate is river sand, and the fineness modulus is 2.4; and S4, preparing the semi-dry mixture into a green brick, demolding the green brick, and naturally curing for 28 days to obtain the baking-free brick. The preparation method provided by the invention realizes safe and environment-friendly treatment and resource comprehensive utilization of the offshore drilling waste mud.
本发明公开了一种以海上钻井废弃泥浆制备免烧砖的方法，步骤如下：S1、将海上钻井废弃泥浆进行固液分离，固相物进行压滤脱水，得到滤饼；S2、滤饼经过烘干，破碎，球磨，水洗除去氯离子，得到基料；S3、将基料中加入水泥、石膏、聚乙烯醇、集料，混合均匀，得到混合料，向混合料中加水，得到半干状混合料；集料包括粗集料和细集料；粗集料为打碎的卵石，粒径分布在5mm～10mm之间，堆积密度为1663kg/m3；细集料为河砂，细度模数2.4。S4、将半干混合料制成砖坯，砖坯脱模后再经自然养护28d后得免烧砖。本发明的制备方法实现了海上钻井废弃泥浆的安全环保处置和资源化综合利用问题。
Method for preparing baking-free brick from offshore drilling waste mud
The invention discloses a method for preparing a baking-free brick from offshore drilling waste mud. The method comprises the following steps: S1, carrying out solid-liquid separation on the offshore drilling waste mud, and carrying out filter pressing dehydration on a solid-phase substance to obtain a filter cake; S2, drying , crushing, ball-milling and washing the filter cake to remove chloride ions, and obtaining a base material; S3, adding cement, gypsum, polyvinyl alcohol and aggregate into the base material, uniformly mixing to obtain a mixture, and adding water into the mixture to obtain a semi-dry mixture; wherein the aggregate comprises coarse aggregate and fine aggregate; the coarse aggregate is crushed pebbles, the particle size distribution is between 5mm and 10mm, and the bulk density is 1663kg/m < 3 >; the fine aggregate is river sand, and the fineness modulus is 2.4; and S4, preparing the semi-dry mixture into a green brick, demolding the green brick, and naturally curing for 28 days to obtain the baking-free brick. The preparation method provided by the invention realizes safe and environment-friendly treatment and resource comprehensive utilization of the offshore drilling waste mud.
本发明公开了一种以海上钻井废弃泥浆制备免烧砖的方法，步骤如下：S1、将海上钻井废弃泥浆进行固液分离，固相物进行压滤脱水，得到滤饼；S2、滤饼经过烘干，破碎，球磨，水洗除去氯离子，得到基料；S3、将基料中加入水泥、石膏、聚乙烯醇、集料，混合均匀，得到混合料，向混合料中加水，得到半干状混合料；集料包括粗集料和细集料；粗集料为打碎的卵石，粒径分布在5mm～10mm之间，堆积密度为1663kg/m3；细集料为河砂，细度模数2.4。S4、将半干混合料制成砖坯，砖坯脱模后再经自然养护28d后得免烧砖。本发明的制备方法实现了海上钻井废弃泥浆的安全环保处置和资源化综合利用问题。
Method for preparing baking-free brick from offshore drilling waste mud
一种以海上钻井废弃泥浆制备免烧砖的方法
WANG HAO (Autor:in) / LI MAOCHUAN (Autor:in) / LIU WENSHI (Autor:in) / HE DONGXUE (Autor:in) / XIONG XINGYANG (Autor:in) / WANG BO (Autor:in) / XIAO XIAO (Autor:in) / LIU YU (Autor:in)
27.08.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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