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Lime-granulate high strength bricks for thermal insulation - prepd. by crushing blast furnace slag or other slag, mixing with lime then moulding
Lime-granulate high strength bricks for thermal insulation - prepd. by crushing blast furnace slag or other slag, mixing with lime then moulding
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机译:石灰颗粒高强度隔热砖-制备。通过粉碎高炉矿渣或其他矿渣,与石灰混合然后成型
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摘要
Lime-granulate bricks are made using the sand-lime brick mfg. process, and a slag granulate crushed in a roller-crusher. The slag is obtd. esp. from blast furnaces; boilers; burning rubbish; or in the direct mfr. of steel. After crushing, the slag contains 15-50% fine grains 0.2 mm size, and is used with 1-6% (w.r.t. total wt.) of lime calculated as CaO. When using blast furnace slag contg. 40% CaO, the crushed slag pref. contains 16-20% fines 0.2 mm and 3-4% CaO is used. The crushed slag pref. has max. size 2 mm, obtd. by crushing twice in a pendulum mill. The mixt. of slag and lime may also contain 1-2% cement; and if the slag has a wt. 1.2-1.5 kg/l, up to 10 wt.% of natural sand may be added to the slag. Used for mfr. of bricks with improved compression strength and thermal insulation compared with conventional materials.
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机译:石灰粒砖是用砂石灰砖制造的。流程,然后将矿渣颗粒在辊式破碎机中破碎。炉渣过硬。尤其是来自高炉;锅炉;燃烧的垃圾;或直接在mfr。钢。压碎后,炉渣中含有15%至50%的0.2毫米大小的细颗粒,并与以CaO计的1-6%(重量总重量)的石灰一起使用。使用高炉炉渣时。 40%CaO,优选的是碎渣。包含0.2%的16-20%的细粉和3-4%的CaO。压碎的矿渣优选。最高尺寸2毫米,实心。在摆锤式粉碎机中粉碎两次。混音。矿渣和石灰中也可能含有1-2%的水泥;如果炉渣的重量为1.2-1.5 kg / l,最多可将10%(重量)的天然沙添加到矿渣中。用于mfr。与常规材料相比具有更高的抗压强度和隔热性能的砖。
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