公开(公告)号：WO2012011880A2

公开(公告)日：2012-01-26

申请号：PCT/SK2011000016

申请日：2011-07-15

Applicant: REFRAKO S R O

Inventor： PARNAHAJ JAROSLAV ,  KARICKOVA ANNA

IPC: C21B7/12

CPC classification number: C21B7/125 ,  C21C5/445 ,  C21C5/4653

Abstract: The invention relates to a composition of plastic refractory material intended for stopping-in tapholes of blast furnaces intended for molten iron production. The nature of the invention lies in an appropriate composition of material made by grogs of refractory shales and silica sand, additives enhancing resistance to molten metals, plasticizers of clay and resins. An appropriate proportion of refractory grogs, clays, carbon additives is mixed with an appropriate proportion of Novolak and Phenolic - resol resin in a mixer and by shaping homogenous mass to loaves under vacuum, when loaf bulk density of about 2,100 kg.m'3 is reached. Mixing time is controlled in dependence on temperature of mass mixed and must not exceed 40 °C. According to the invention, mass compaction occurs, e.g. at pressure 8 MPa per loaf surface of e.g. 250 x 120 mm. When designing mass composition for a final customer, it is possible to select an appropriate proportion, combination of synthetic resins of the Novolak and resol type, in order to obtain technological effect required for its application.

Abstract translation: 本发明涉及一种用于停止用于铁水生产的高炉的小坑的塑料耐火材料的组合物。 本发明的性质在于由耐火页岩和硅砂砂岩，由熔融金属增强的添加剂，粘土和树脂的增塑剂制成的材料的合适组合物。 将适量比例的耐火材料，粘土，碳添加剂与合适比例的酚醛清漆和酚醛树脂混合，并在真空下通过将均匀的质量块形成面包，当约2,100kg.m'3的面包体积密度为 到达。 混合时间根据质量混合温度控制，不得超过40℃。 根据本发明，发生质量压实，例如， 在每个面条表面的压力8MPa下。 250 x 120毫米。 在为最终客户设计质量组成时，可以选择合适的比例，合成树脂与酚醛树脂型的组合，以获得其应用所需的技术效果。