钢渣协同废催化剂制备陶粒的矿相调控机理研究

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关键词：钢渣；固废；陶粒；透辉石

中图分类号：X705 文献标识码：A 文章编号：1008-9500（2025）04-0001-08

DOI： 10.3969/j.issn.1008-9500.2025.04.001

Study on the Mineral Phase Control Mechanism of Ceramsite Preparation Based on the Synergy of Steel Slag and Waste Catalyst

WANGZhifei’，LINAnjt² （1.BGRIMM Technology Group，Beijing 100160，China; 2.Semiconductor Technology Innovation Center（Beijing） Corporation，Beijing 1026O0， China）

Abstract：Stlslagisadiiculttotreatmetalurgicalsolidwastecontaininghighsiliconandhigh-speedrail，ifalarge amountofstelslagisusedtoprepareceramsite，itisasytocausetheoxidationand precipitationofquartzphase，increase the internal stress ofceramsite，lead to crackingandreduce their strength.The experimentaddsraw materials rich in calcium，magnesium，and aluminum to steel slag ceramsite with a steel slag content of 60 % ，and improves the performance ofsteelslagceramsitebyadjustingthemineralphaseoftheceramsite.Duringthis proces，diferentraw materialsareadded to prepare steel slagceramsiteunderdiferentsintering temperatureconditions，andthe mechanismof phasecontrolof steel slag ceramsiteis studiedthroughanalysis methods such asphysical property testing，X-RayFluorescence spectrometer （XRF），and X-Ray Difraction（XRD）.Theresearchresults indicatethatadding high siliconandaluminumraw materials with a dosage of less than 30 % to the steel slag ceramic body has little effect on the final mineral phase and sintering temperatureoftheceramsite.However，withtheincreaseofdiopsidecontent，thecompresivestrengthandwaterabsorption of ceramsite significantly improve.When 20 % diopside is added to steel slag ceramsite，its performance is optimal，with a sintering temperature of ，a flexural strength of 5 0 . 3 M P a ，and a water absorption rate of 0 . 5 8 % ：

Keywords： steel slag;solid waste; ceramsite; diopside

钢渣是钢铁冶炼过程中转炉、电炉等设备排放的固体废弃物，排放量为粗钢的 年，我国粗钢产量约为10.19亿t，经粗略估计，钢渣产量超1.5亿t1-3]。（剩余9245字）