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通过自行设计搭建的高温熔融-高压水射流装置,进行了熔融态转炉钢渣与高炉渣的高压水射流试验.试验表明:采用高压水射流直接冷却微细化的方法能够同时实现转炉钢渣的微细化与胶凝活性增强;在本文试验条件下,采用8～10MPa的高压水,射流冷却后的射流钢渣体积平均粒度达到94.3μm,主要物相是玻璃相和结晶矿物Ca2S iO4,由其所制备胶凝材料养护28 d的抗压强度达33.96MPa,超过原钢渣制备胶凝材料8MPa.射流高炉矿渣形成絮状结构,并具有更低胶凝活性.与熔融态高炉矿渣相比,熔融态转炉钢渣更适合采用高压水射流方法.
The high-pressure water jet test of slag and blast furnace slag in molten state was carried out by self-designed high-temperature fusion-high pressure water jetting device.The experiments show that the miniaturization of high-pressure water jet can directly realize the miniaturization of converter slag and Under the experimental conditions, high pressure water of 8 ~ 10MPa was used. The volume average particle size of the jetted steel slag after jet cooling reached 94.3μm. The main phases were glassy phase and crystalline mineral Ca2SiO4, The compressive strength of the material cured for 28 d reached 33.96 MPa, which exceeded the original slag preparation cementing material 8 MPa. The jet blast furnace slag formed floc structure and had lower gelling activity. Compared with the molten blast furnace slag, the molten converter slag Suitable for high pressure water jet method.