Checker Brick Introduction
Checker bricks are mainly used in the regenerator of hot blast stoves. Checker bricks with grid holes are arranged in an orderly manner. The upper and lower through holes of the checker bricks can allow gas to pass through. Checker bricks are currently widely recognized and accepted by the world’s ironmaking industry as a heat-carrying heat storage body with many excellent thermal characteristics, such as strong heat exchange capacity, large heat storage area, smooth ventilation, and low resistance. Checker brick is a kind of heat transfer medium, which is used in the regenerator of blast furnace hot blast stove. In the process of heating cold air into hot air, it plays an extremely important role.
Checker Brick Characteristics
The basic characteristics of checker bricks for hot blast stoves1. It has a plurality of transparent grid holes parallel to the side surfaces, and positioning protrusions and positioning grooves on the two parallel surfaces.2. Good volume stability, excellent high temperature load creep performance, high density and low porosity. Modern blast furnace hot blast stoves usually adopt checkered brick regenerator structure.
Checker Brick Working Principle
The function of the hot air stove is to heat the cold air sent to the blast furnace into hot air, and then the hot air is sent to the blast furnace through the hot air pipe for combustion reaction. The blast furnace hot blast stove has a burning period and an air supply period, and the two working periods are rotated periodically.During the burning period, the high-temperature flue gas after combustion passes through the holes of the checker bricks of the hot blast stove to transfer heat to the checker bricks;During the air supply period, the cold air from the blower enters the hot air furnace, is heated by the checker bricks into hot air, and is sent to the blast furnace through the hot air pipe.Checker bricks are mainly used in hot blast stoves. When the air temperature is higher than 1200℃, checker bricks are made of high alumina bricks, mullite bricks, sillimanite bricks and silica bricks.
Checker Brick Application
Checker bricks are mainly used in the regenerator of hot blast stoves. Checker bricks with grid holes are arranged in an orderly manner. The upper and lower through holes of the checker bricks can allow gas to pass through. Checker bricks are currently widely recognized and accepted by the world’s ironmaking industry as a heat-carrying heat storage body with many excellent thermal characteristics, such as strong heat exchange capacity, large heat storage area, smooth ventilation, and low resistance. Checker brick is a kind of heat transfer medium, which is used in the regenerator of blast furnace hot blast stove. In the process of heating cold air into hot air, it plays an extremely important role.
