The alumina ball is also called the high aluminum accumulation of heat ball.High alumina refractory ball is based on bauxite as the mainly raw refractory material.Adding powder and additives and anchoring agent.After proportioning, molding and high sintering to make it.The production engineering of high alumina refractory ball is similar to that of high alumina refractory brick.It should be based on the properties of raw materials,high alumina refractory ball requires production conditions and other factors to determine.
40-75% refractory alumina ball for hot blast stove
The alumina ball is also called the high aluminum accumulation of heat ball.High alumina refractory ball is based on bauxite as the mainly raw refractory material.Adding powder and additives and anchoring agent.After proportioning, molding and high sintering to make it.The production engineering of high alumina refractory ball is similar to that of high alumina refractory brick.It should be based on the properties of raw materials,high alumina refractory ball requires production conditions and other factors to determine.
The function of high aluminum refractory ball:it mainly stacked in industrial kilns, which can achieve the effect of accumulation of heat.
The application of high aluminum refractory ball : it can be used in the blast furnace ironmaking of Cowper blast air heater, high and low temperature conversion furnace in chemical fertilizer plant, conversion furnace, hydrogenation converter, desulphurization trough and methane furnace.Reformer, hydrogenated converter and desulphurizing tank.,Methane furnace.
High aluminum refractory ball index
|
Item |
High alumina |
Low creep |
Mullite |
Corundum |
|
Size(mm) |
40-80 |
40-80 |
40-80 |
40-80 |
|
AL2O3(%) |
65 |
70 |
75 |
95 |
|
Refractoriness under load(°C) |
1450 |
1460 |
1530 |
1650 |
|
Apparent Porosity(%) |
25 |
23 |
22 |
18 |
|
Bulk Density(g/cm3) |
2.3 |
2.4 |
2.5 |
3.1 |
|
Cold crushing strength(Mpa) |
13 |
14 |
32 |
36 |
|
Thermal shock resistance (1100°Cwater cooling) cycle ≥ |
15 |
10 |
20 |
7 |
|
Refractoriness(°C) |
1710 |
1750 |
1800 |
1800 |
(1)The heat storage capacity is strong and the heat storage effect is good
(2)The creep properties is good.
(3)High compression strength and good abrasive resistance.
(4)The chemical stability is good.
(5)Good resistance to elevated temperatures.
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.
Coke furnace silicon bricks are mainly used in the heat storage room, oblique road, charcoal room, combustion room, top of the furnace, and bottom of the furnace.
Silica bricks for coke ovens are siliceous refractory products used for building coke ovens with tridymite as the main crystal phase. Coke oven silica bricks are used to build regenerator walls, ramps, combustion chambers, carbonization chambers and furnace roofs of coke ovens. Silica brick is an acid refractory material with good resistance to acid slag erosion. The softening temperature under load is as high as 1640-1670 °C, and the volume is relatively stable in long-term use at high temperature.
Converter, electric furnace gunning material has the characteristics of high adhesion rate, good high temperature corrosion resistance, etc.
Common low-creep high-alumina bricks can be used in blast furnace hot blast stoves, as well as other industrial kilns, and can also be made into low-creep high-alumina bricks of different sizes according to specific construction requirements, such as lattice bricks, special-shaped bricks, anchor bricks, etc. , mainly used in industrial kilns in long-term high temperature environments
Yuying Refractory produces a complete set of refractories for electrolyzers, and the new impermeable bricks are used in conjunction with impermeable castables
Refractory ramming mass (refractory taphole mass) is a kind of Refractory used for lining of blast furnace tapping groove. It is mainly used to protect the blast furnace out of the ditch from high-temperature hot metal and slag erosion and erosion, and has excellent high-temperature resistance and wear resistance. The ramming material for the iron discharge ditch is usually composed of corundum, silicon carbide and carbonaceous material, which has the ability of resisting hot metal and molten slag erosion and scouring, reburning line change small, strong resistance to a variety of oxidation characteristics. The construction of the ramming material for the iron ditch is convenient, easy to dismantle and repair, does not produce harmful gas, and is beneficial to environmental protection.
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.
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