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在COREX炼铁技术工业化的过程中,为解决粉煤再利用问题,开发了COREX煤压块技术。在粉煤中掺入粘结剂和固化剂,搅拌均匀后压制成型煤产品,供COREX熔融气化炉使用。采用该工艺生产出的型煤,能满足COREX炼铁工艺所要求的强度、粒度、热稳定性、反应性等指标,可作为COREX炼铁工艺的原料使用。分析了COREX煤压块工艺的特点、原料的性能要求、技术指标,以及在我国的应用现状和发展方向。
In the process of industrialization of COREX ironmaking technology, COREX coal briquetting technology was developed to solve the problem of pulverized coal recycling. In the pulverized coal mixed with binder and curing agent, after mixing evenly pressed coal products for the use of COREX melting gasifier. The briquette produced by the process can meet the required strength, grain size, thermal stability and reactivity index of the COREX ironmaking process and can be used as the raw material of the COREX ironmaking process. The characteristics of COREX coal briquette process, the performance requirements of raw materials, technical indicators and the application status and development direction in China are analyzed.