Blast furnace construction
阅读：642发布：2023-09-08
专利汇可以提供Blast furnace construction专利检索，专利查询，专利分析的服务。并且The invention relates to blast furnace linings containing refractory brick of the fireclay or high alumina types which between certain rows has disposed a layer of pitch impregnated ceramic fiber board to absorb thermal expansion of the brick and resist penetration of slags in the furnace.，下面是Blast furnace construction专利的具体信息内容。
1. In a blast furnace construction having an upper inwall zone, a lower inwall zone, a bosh zone and a hearth zone, a refractory lining in at least the lower inwall and bosh zones consisting essentially of a plurality of rows of refractory brick and a layer of pitch impregnated ceramic fiber board sandwiched between a number of rows to absorb the thermal expansion of the brick and resist attack by slags.
1. In a blast furnace construction having an upper inwall zone, a lower inwall zone, a bosh zone and a hearth zone, a refractory lining in at least the lower inwall and bosh zones consisting essentially of a plurality of rows of refractory brick and a layer of pitch impregnated ceramic fiber board sandwiched between a number of rows to absorb the thermal expansion of the brick and resist attack by slags.
2. Construction of claim 1 in which the layer of fiber board is between about 1/8 inch and 3/8 inch thick.
3. Construction of claim 2 in which the layer of fiber board is sandwiched between about each 15 inch of brick thickness.
4. Construction of claim 1 in which the ceramic fiber board is composed of high alumina fibrous material.
5. Construction of claim 1 in which the ceramic fiber board is impregnated with a pitch having a softening point between about 135* and 215*F.
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