摘要本文简述了铁尾矿堆积产生的环境危害和铁尾矿的主要利用渠道以及用铁尾矿 烧结的陶粒的性能和面临的问题，也对铁尾矿的成分和烧结陶粒的工艺进行了研 究。对铁尾矿进行全分析和 XRD 衍射图谱的分析，确定其主要物质组成和含量。 通过几组原料不同的配比方案在不同烧成温度和保温时间下的膨胀率、吸水率、 颗粒硬度、堆积密度等性能进行了分析和研究。通过体式显微镜拍摄的断口的照 片，对陶粒内部气孔率和致密度进行了分析。实验结果表明烧成温度 1210℃，配 比为铁尾矿：石英粉：粉煤灰=3:3:4，保温时间 15min 时，烧结陶粒具有最佳的 抗压强度等性能。68570

毕业论文关键词：铁尾矿，陶粒，XRD，膨胀率，吸水率，颗粒硬度，堆积密度

 Title：The preparation of sintering ceramsite iron tailings using research

Abstract： 

This paper introduces the environmental hazards of iron tailings accumulation and    the sintering ceramsite  and  the problem  which are  faced  with. It  also  do research on the

composition and sintering ceramsite of iron taillings technology.The analysis of iron tailings and the analysis of the XRD diffraction pattern, determine  the main composition and content of iron taillings.Through several groups of raw material  ratio of different scheme under different sintering temperature and holding time,the properties of expansion rate, water absorption, grain hardness, bulk density and other properties are analyzed and studied.Through several groups of raw material ratio of different scheme through postures microscope photos of the fracture, the ceramsite internal porosity and density are analyzed.Experimental results show that the sintering temperature of 1210 ℃, ratio of iron tailings, quartz powder, flyash = 3:3:4, holding time of 15 min, sintering ceramsite has the best properties such as  compressive strength.

Keywords：Iron tailings, ceramsite, XRD, expansion rate, water absorption, grain hardness, bulk density

目 次

1．1 铁尾矿简介 4

1.1.1 铁尾矿的回收利用方法、成分及种类 4

1.1.2 铁尾矿主要利用途径 6

1.2 陶粒简介 7

2 铁尾矿全分析实验 10

2.1.2 Fe2O3 的测定 11

2.1.3    Al2O3 的测定 11

2.1.4 CaO 的测定 12

2.1.5 MgO 的测定 12

2.1.6 全分析结果讨论 13

2.2 铁尾矿的 XRD 分析 14

2.3 铁尾矿的塑性性能测定 15

2.4 铁尾矿分析实验结论 16

3 铁尾矿制备烧结陶粒 17

3.1 尾矿烧结陶粒的制备工艺 17

3.1.1 主要实验仪器与设备 17