초록 ▼

The porous material of the present invention is produced by heating a dry powder mixture, containing mainly an organic solid binder and inorganic particles. The mixture is foamed while the organic binder is melted. Foaming comes from a foaming agent in the powder mixture. The solid foamed structure

The porous material of the present invention is produced by heating a dry powder mixture, containing mainly an organic solid binder and inorganic particles. The mixture is foamed while the organic binder is melted. Foaming comes from a foaming agent in the powder mixture. The solid foamed structure comprising inorganic particles embedded in an organic binder is then heated to eliminate the organic binder and finally to sinter the remaining inorganic tri-dimensional network into a rigid structure having interconnected porosity.

대표청구항 ▼

The porous material of the present invention is produced by heating a dry powder mixture, containing mainly an organic solid binder and inorganic particles. The mixture is foamed while the organic binder is melted. Foaming comes from a foaming agent in the powder mixture. The solid foamed structure

The porous material of the present invention is produced by heating a dry powder mixture, containing mainly an organic solid binder and inorganic particles. The mixture is foamed while the organic binder is melted. Foaming comes from a foaming agent in the powder mixture. The solid foamed structure comprising inorganic particles embedded in an organic binder is then heated to eliminate the organic binder and finally to sinter the remaining inorganic tri-dimensional network into a rigid structure having interconnected porosity. iron discharging screw having a rotary shaft and a spiral blade dimensioned to pass through said through holes, said reduced iron discharging screw being mounted in said furnace body at a location to discharge reduced iron on the hearth from a discharge port of the furnace body, wherein axial ends of said rotary shaft extend through said through holes to the exterior of said furnace body; hatch members removably mounted to said axial ends of said rotary shaft, said hatch members externally closing said through holes; a first outer screw supporting device comprising means for removing said reduced iron discharging screw from said furnace body via one of said through holes, and a movable bogie position able to support the removed reduced iron discharging screw; and a second inner screw supporting device comprising a reciprocatable member having an end detachably connectable to said axial ends of said rotary shaft, and means for moving the reciprocatable member so as to draw the reduced iron discharging screw out of said furnace body.