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.
Fireclay bricks are classified as weak acid refractories. Due to the large fluctuation range of chemical composition, different production methods, and differences in firing temperature, the properties of clay bricks change greatly.We can produce all kinds of Fireclay bricks according to customers' requirements
The refractory pre -production is the category of irregular refractory materials, also known as the prefabricated block of the pouring materials, and the irregular refractory prefabricated block.
Insulation castables are mainly made up of lightweight refractory aggregates, powders, and binder additives.
The unshaped refractory material used when repairing the lining of thermal equipment by spray construction method is called refractory gunning material. It is made of a refractory set with a certain particle gradation
The high-alumina refractory bricks sold by Yuying refractory manufacturers are commonly used refractory bricks with high thermal stability and refractoriness above 1770°C. It has good slag resistance and is used for the lining of steelmaking electric furnaces, glass melting furnaces, cement rotary furnaces, etc.
White corundum is made from industrial alumina powder, which is smelted in an arc at a high temperature above 2000 ℃ and then cooled. After crushing and shaping, magnetic separation to remove iron, it is divided into various particle sizes.
Magnesia chrome bricks are refractory products with magnesia (MgO) and chromium trioxide (Cr2O3) as the main components, and periclase and spinel as the main mineral components. The main raw materials for the manufacture of magnesia-chrome bricks are sintered magnesia and chromite.
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.
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