It is widely used in the lining of the kiln working face which is in direct contact with the flame, and has become one of the research hotspots in recent years.
Shaped lightweight heat-insulating refractory bricks are shaped block-shaped heat-insulating refractory products with a porous structure inside and thermal insulation properties. Among them, brick-shaped products are the most widely produced and used, so they are also called lightweight heat-insulating refractory bricks. Shaped mullite products mainly refer to mullite light insulation bricks, which are a new type of insulation material with Al2O3 content of 50%~80% and mullite (3Al2O3.2SiO2) as the main crystal phase and combined phase.
Project
Al2O3%≥
Fe2O3(%)
≤
Bulk density g/cm3≤
Cold crushing strength MPa CCS
Permanent linear change℃×h≤2%
Thermal Conductivity w/m.k
0.2MPasoftening temperature under load0℃
400℃
600℃
1000℃
DLM-0.3
75
0.3
0.3
3.5
1350×12
0.18
0.22
0.26
1350
DLM-0.5
75
0.5
0.5
5.0
1380×12
0.22
0.26
0.30
1380
DLM-0.6
75
0.6
0.6
5.8
1420×12
0.26
0.30
0.32
1420
DLM-0.8
75
0.8
0.8
7.5
1450×12
0.28
0.32
0.36
1450
DLM-1.0
75
1.0
1.0
8.5
1480×12
0.30
0.35
0.40
1480
Because mullite light insulation brick has the following advantages:
High temperature strength
Good high temperature stability
Small coefficient of thermal expansion
Good thermal shock resistance and other advantages
It is widely used in the lining of the kiln working face which is in direct contact with the flame, and has become one of the research hotspots in recent years.
Insulating fire brick is a new type of building material synthesized with polymer materials. The main function is to keep warm, reduce heat loss and improve thermal efficiency.
Silicon carbide used in industry is a synthetic material, commonly known as emery. Silicon carbide is one of the most commonly used non-oxide refractory raw materials in the field of refractories.
Acid resistant refractory gunning material is used for spraying of blast furnaces, hot blast stoves, hot blast pipes, flue protection layers, working layers, etc.
The refractory ramming material is prepared from a high proportion of granular and powdery materials and a very low proportion of binders and other components, even all of which are composed of granules and powders, and are subject to strong ramming. Bulk materials for construction.
Refractory wet mud used to block the iron outlet can be divided into two categories: water cannon mud and waterless gun mud. On large and medium -sized blast furnaces on high top pressure and high degree of smelting.
Anchor bricks are anchor bricks for industrial kilns. The electric furnace roof is a furnace roof structure supported by metal hanging bricks and refractory bricks. Therefore, the leakage of reactive gas and hot gas in the furnace will damage the metal hanging parts, thereby causing furnace damage. roof collapse accident. Anchor bricks are also called hanging bricks and anchors.