High Alumina Anchor Bricks for Industrial Furnace Wall and Roof - Hanging Bricks
Anchoring brick is a kind of brick for industrial furnace roof and furnace wall, which is buried in the refractory castable wall. It can be used after certain high-temperature baking, which can enhance the overall performance of the refractory castable. The high-alumina anchoring brick-hanging brick for the top of the furnace wall of an industrial furnace has high strength, good thermal shock resistance, and strong peeling resistance. Due to the field of use, the shape of high-alumina anchor bricks is more complicated. In the process of use, it has to withstand high temperature, high pressure, load, hot air scouring, atmosphere, periodic alternating hot and cold, etc., and the use of environmental conditions is harsh.
High Alumina Anchor Bricks for Furnace Wall and Top of Industrial Furnace
Anchoring bricks, also known as hanging bricks, are made of high-quality raw materials, machine-pressed or poured, and then sintered at high temperatures. Anchor bricks play an important role in masonry facing walls, which can improve the integrity of the facing walls.
The alumina content of anchor bricks is more than 55%, and the alumina content of high-quality anchor bricks can reach 75%. But in general, the alumina content is 55%, because the anchor brick with 55% content is more flexible.
In addition, it should be noted that when the anchor brick is used to anchor the refractory castable, the properties of the anchor brick should be consistent with the castable material, and the expansion and contraction should also be consistent. Therefore, it can form a close combination with the castable and prolong the life of the furnace lining.
The layout and masonry of anchor bricks during use should follow the following principles:
1. The arrangement of anchor bricks should be determined according to the range and frequency of temperature changes and the size of the area facing the wall. Usually should not be less than 6 blocks/m2.
2. The anchoring bricks must be carefully checked before masonry. If there are cracks in the anchoring holes that affect the overall strength of the anchoring bricks, the anchoring bricks cannot be used and should be discarded resolutely.
3. When the masonry is close to the position of the anchor brick, the bricks should be arranged in advance to determine the exact position of the anchor brick. Use a wire brush to thoroughly clean the welded parts of the metal housing. The welding rod suitable for welding parts is used to firmly weld the anchor pipe.
4. Insert the anchoring hook after the anchoring brick is built, fill the air strike with refractory fiber felt, and plug it tightly to form certain protection for the anchor.
The anchoring brick includes a column body composed of a hanging end and an anchor body, and spaced sub-grooves opened on the surface of the anchor body. Ribs are provided lengthwise on at least one surface of the anchor. After the rib is set, due to the reinforcement and pulling effect of the rib. The tensile and flexural strength of the anchor is significantly improved, and the stress generated at the groove is blocked at the ribs and cannot be transmitted continuously, so the anchor brick of this structure is not easy to break.
High-alumina anchoring bricks are refractory bricks for furnace top and walls of heating furnaces. Its size can be customized and processed according to the needs of the heating furnace to meet the needs of the furnace lining. Ensure the service life of the lining of the heating furnace and improve the economic benefits of the industrial furnace. Contact anchor bricks manufacturer for more details.
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