煤矸石
- gangue;coal gangue;coal refuses
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[gangue] 煤矿中无用的岩石
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煤矸石的纳米结构及其对合成SiC的影响
Gangue Nano structure and Effect of the Structure on Synthesizing SiC
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利用煤矸石合成4A分子筛初探
Investigation on Synthetic 4A Molecular Sieve with Gangue
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煤矸石和粉煤灰pH与电导率动态变化规律及其相关性研究
Dynamic change of pH and electricity conductivity in coal slags and fly ash and their correlation
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监测了不同粒径的煤矸石、粉煤灰及其不同配比的基质在水的长时间漫泡下,其pH的变化规律。
PH had some changes after fly ash and coal wastes soaked into water for a long time .
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Fe2O3在煤矸石碳热还原氮化合成SiAlON时的作用
Effect of Fe_2O_3 on Synthesis of SiAlON from Coal Gangue by Reduction-Nitridation Process
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TiO2在煤矸石碳热还原氮化过程中的作用
Effect of TiO_2 addition on reduction nitridation process of coal gangue
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采用XRD分析了自燃煤矸石胶凝材料中活性Al2O3在不同因素影响下水化形成钙矾石的情况。
The ettringite formation of active Al_2O_3 in the spontaneous combustion coal gangue cementitious material is analyzed by XRD .
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煤矸石二值图像的Roberts快速边缘检测法
A Fast Edge Detection Roberts Algorithm of Coal Gangue Binary Image
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改性煤矸石吸附Cr(VI)的研究
Cr in the control area respectively . Study on Adsorption of Chromium ( VI ) from Wastewater by Modified Gangue
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活化煤矸石水泥硬化浆体中Ca(OH)2的含量在水化3d时最多,而后随龄期逐渐减少;
The content of Ca ( OH ) _2 was the most when the curing age was 3 days , and gradually reduced lately in activated coal-gangue-cement hardened paste .
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煤矸石的掺入能有效延迟和减缓混凝土ASR膨胀。
Secondly , the addition of gangue can effectively prevent or delay ASR expansion .
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取得了内蒙乌海煤矸石采用CFB燃烧方式时的大量重要的技术数据,可为京煤集团有限责任公司的CFB锅炉设计和锅炉岛系统设计提供基础数据和设计依据。
These data also offered technical basis for designing CFB boiler and boiler island system of Beijing coal group limited liability company .
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煤矸石中SiO2与C具有天然紧密结合的特点,这有利于在较低温度下合成SiC。
The SiO 2 and C in coal refuse are in a state of inherently intimate contact , which is favorable to be synthesized to give SiC at lower temperature .
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本文应用X射线分析和扫描电子显微镜技术研究了在常温和蒸汽养护条件下自燃煤矸石水泥水化和强度发展。
In this paper , by means of X-ray analysis and scanning electron microscope technology , the hydration and strength development of spontaneous gangue cement under the condition of normal atmospheric temperature and steam curing are analysed .
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通过改变浸泡时间、固液比和浸泡液pH值进行浸泡实验;通过改变空隙率(煤矸石、粘土和砂砾的质量比)进行动态淋溶实验。
Soaking time , solid-liquid ratio and pH of soaking solution were changed in the soaking experiment , and gangue porosity ( the mass ratio of gangue , clay and gravel ) were changed in the dynamic leaching experiment .
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淮南煤矸石电解制备Al-Si-Ti合金的研究
Preparation of Al - Si - Ti alloy by electrolysing coal gangue in Huainan Mines
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CID-ICP-AES法同时测定煤矸石中13种微量元素
Determination of 13 microelements in coal gangues by CID-ICP-AES
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煤矸石菱镁矿合成堇青石熟料研究(4)与电熔镁砂相比,使用烧结镁砂为原料时,耐火材料表面更容易形成MgO致密层。
A STUDY ON PRODUCING SINTERED CORDIERITE MATERIALS BY USING COAL GANGUES AND MAGNESITE AS RAW MATERIALS ( 4 ) Compared with electro-fused magnesite , sintered magnesite is more effective for the formation of MgO densed layer .
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XRD分析表明煤泥陶粒和煤泥、粉煤灰、煤矸石陶粒的晶体结构都以氧化物结构和硅酸盐结构为主,主要晶体都是石英(SiO2)且还含有少量的重金属化合物。
XRD analysis indicates that the slime ceramsite and the mixed burning ceramsite with the crystal structure of oxide and silicate structures , the main crystals are quartz ( SiO2 ) and also contains a small amount of heavy metal compounds .
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文中介绍了某3×135MW煤矸石综合利用电厂贮煤筒仓安全监测系统。
Coal-silo safety monitoring system designed for the power plant of 3 × 135 MW is discussed in this article .
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煤矸石风化程度越高,溶解释放的无机盐类污染物量越多,新鲜混合煤矸石溶解释放出较高的氟化物(F-)、耗氧量(OC)和总铁(Fe);
The higher efflorescence degree of coal gangue , the more mass of dissolution releasing inorganic salt contamination , and the more fresh mix coal gangue release mass of fluorid ( F - ), consumed oxygen ( OC ) and total iron ( Fe ) .
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研究了煤矸石对水泥砂浆强度的影响,以及在酸性NH4NO3溶液中的化学稳定性。
Effects of coal gangue on the mechanical properties of cement mortars and their chemical stability exposed to NH_4NO_3 solution were investigated in this paper .
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利用XRD,IR,SEM等方法,研究了NaOH、KOH和钠水玻璃激发烧煤矸石的反应进程和水化产物,对其力学性能、微观结构和硬化机理进行了探讨。
The hydrated product and the activated progress of burned coal gangue with highly alkaline solutions , made with NaOH , KOH , water glass , etc. , were studied by means of XRD , IR , SEM . Its mechanical properties , microstructure and hardening mechanisms were described .
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标准养护制度下,水化开始180min,粉煤灰和煤矸石是抑制水泥熟料水化的,之后开始促进其水化,且随着时间的推移,促进作用逐渐降低。
Under standard protection , during the initial 180 minutes , fly ash and coal gangue restrain the hydration , and then promotes it .
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将粉磨后不同细度煤矸石以不同掺量与熟料、石膏配置复合水泥,测定其3d、28d强度,标准稠度用水量和凝结时间。
In the study , coal gangue was grinded in particles with different sizes , and admixed into cement clinker with different contents , then the properties of the composite cement such as 3d and 28d strength , water requirement of normal consistency and setting time were tested .
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用煤矸石及硫铁矿烧渣作原料制备了一种高效复合混凝剂聚硅酸铝铁(PSAF),并将其用于造纸综合废水的处理。
A new type of effective complex coagulant polysilicate aluminum ferric salt ( PSAF ) was prepared from coal gangue and pyrite slag and used as coagulant in the treatment of papermaking wastewater .
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利用煤矸石与矿渣、粉煤灰之间的协同效应在常规条件下制备出强度持续增长(62.10MPa,3d;93.15MPa,90d)、施工性能良好的胶凝材料。
Cementitious materials with compressive strength growth increasingly ( 62.1 MPa curing for 3 d and 93.15 MPa curing for 90 d ) and favorable construction performance were produced through making full use of the synergistic effect of the compound of gangue , slag and fly ash .
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针从目前煤矸石堆放导致的矸石的自燃,SO2、H2S气体的释放,酸性废水的形成,污染大气、土壤和水体等环境问题,提出了生物综合治理的新思路。
In view of the environmental problems caused by the coal waste piling such as coal waste spontaneous combustion , SO_2 and H_2S release , formation of acidic waste water and pollution of atmosphere , soil and water body , a new thought of biological comprehensive treatment is proposed .
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首先在高温氮气气氛中活化由K2CO3浸渍过的煤矸石,使其中的碳质转化为活性炭,然后将其置于NaOH溶液中,使其中的硅铝氧化物晶化为沸石分子筛。
The coal gangue impregnated with K_2CO_3 are activated in the flow of N_2 at 800 ℃, to convert the carbonaceous in original material into activated carbon , and then the activated products are treated with NaOH solution , to crystallize the aluminosilicate into zeolite 4A .
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研究利用煤矸石及硫铁矿烧渣作原料制备PSAAF并用于印染废水的处理结果表明,PSAAF有良好的除浊、脱色和除COD性能;
Polysilicate aluminum and ferric salt ( PSAAF ) flocculant was prepared from coal refuse and pyrite slag , and was used as flocculant in the treatment of dyeing wastewater for removing turbidity and COD and decolorizing .