A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Foamed lightweight aggregate prepared from iron tailings and preparation method thereof
The invention discloses a preparation method of foamed lightweight aggregate prepared from iron tailings. The preparation method comprises the following steps: detecting the content of each componentin the iron tailings, and regulating the mass part addition ratio of raw materials; carrying out ball milling until a particle size is 150 microns or below to obtain raw material powder; adding a fluxing agent, a binder, a foaming agent and an aluminum content regulator into the raw material powder to obtain a mixture; conducting granulating to obtain an semi-finished aggregate product; subjectingthe semi-finished aggregate product to drying, sintering at high temperature, and cooling to obtain the foamed lightweight aggregate. The invention further discloses the foamed lightweight aggregateprepared from the iron tailings. According to the invention, the content of each component in different iron tailings is determined, and the ratio of the iron tailings, the fluxing agent, the binder,the foaming agent and the aluminum content regulator is reasonably controlled, so the iron tailings are ensured to have high solid waste utilization rate, the goals of high strength, low stacking density and low water absorption rate are effectively achieved, and the iron tailings in different reservoir areas are fully recycled; and the preparation method is simple in process, friendly to environment, and convenient for industrial production.
本发明公开一种利用铁尾矿制备的发泡轻骨料的制备方法，包括检测铁尾矿中各成分的组份含量，调节原料的质量份数添加量配比；球磨至粒径为150μm以下，得到原料粉末；向所述原料粉末中加入助熔剂、粘结剂、发泡剂和铝含量调节剂，得到混合物；造粒得到骨料半成品；将所述骨料半成品烘干、高温烧结，冷却得到发泡轻骨料；还公开一种利用铁尾矿制备的发泡轻骨料。本发明根据不同的铁尾矿中各成分的组份含量，合理地控制铁尾矿、助熔剂、粘结剂、发泡剂和铝含量调节剂的配比，在保证铁尾矿具有高固废利用率的同时，有效达到高强度、低堆积密度和低吸水率的目标，实现对不同库区的铁尾矿得到充分的资源化利用，制备工艺简单环保，便于工业化生产。
Foamed lightweight aggregate prepared from iron tailings and preparation method thereof
The invention discloses a preparation method of foamed lightweight aggregate prepared from iron tailings. The preparation method comprises the following steps: detecting the content of each componentin the iron tailings, and regulating the mass part addition ratio of raw materials; carrying out ball milling until a particle size is 150 microns or below to obtain raw material powder; adding a fluxing agent, a binder, a foaming agent and an aluminum content regulator into the raw material powder to obtain a mixture; conducting granulating to obtain an semi-finished aggregate product; subjectingthe semi-finished aggregate product to drying, sintering at high temperature, and cooling to obtain the foamed lightweight aggregate. The invention further discloses the foamed lightweight aggregateprepared from the iron tailings. According to the invention, the content of each component in different iron tailings is determined, and the ratio of the iron tailings, the fluxing agent, the binder,the foaming agent and the aluminum content regulator is reasonably controlled, so the iron tailings are ensured to have high solid waste utilization rate, the goals of high strength, low stacking density and low water absorption rate are effectively achieved, and the iron tailings in different reservoir areas are fully recycled; and the preparation method is simple in process, friendly to environment, and convenient for industrial production.
本发明公开一种利用铁尾矿制备的发泡轻骨料的制备方法，包括检测铁尾矿中各成分的组份含量，调节原料的质量份数添加量配比；球磨至粒径为150μm以下，得到原料粉末；向所述原料粉末中加入助熔剂、粘结剂、发泡剂和铝含量调节剂，得到混合物；造粒得到骨料半成品；将所述骨料半成品烘干、高温烧结，冷却得到发泡轻骨料；还公开一种利用铁尾矿制备的发泡轻骨料。本发明根据不同的铁尾矿中各成分的组份含量，合理地控制铁尾矿、助熔剂、粘结剂、发泡剂和铝含量调节剂的配比，在保证铁尾矿具有高固废利用率的同时，有效达到高强度、低堆积密度和低吸水率的目标，实现对不同库区的铁尾矿得到充分的资源化利用，制备工艺简单环保，便于工业化生产。
Foamed lightweight aggregate prepared from iron tailings and preparation method thereof
一种利用铁尾矿制备的发泡轻骨料及其制备方法
JIA YIHAI (author) / HE WEIFA (author) / WANG XIHONG (author) / ZHAO KAI (author) / QI XI (author) / HUANG WENHAI (author)
2020-05-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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