High Strength Lightweight Insulating Refractory Castables for Boiler
Refractory castables are used to replace refractory bricks in monolithic linings in all types of furnaces and kilns. They can be classified as follows: standard, medium cement content, low cement, ultra low cement, insulating castables, applied either by casting or by gunning.
These castables can be made from different materials such as heavy chamottes, andalusites, bauxites, mullites, corundum, tabular alumina, silicon carbide, or light weight chamottes, perlite and vermiculite for insulation purposes. According to your processes and your conditions of use, we will be able to give you customized prescriptions and competitive quotations.
Standard / Medium Cement castables with high alumina cement can be used within temperatures from 1300oC up to 1800oC. They have good thermal shocks, good mechanical and chemical resistances such as for abrasion, chemical corrosion and physical wear.
Process conditions, time available for the repairs, accessibility, qualified applicators / efficient equipments (gunning machine, shot crating pumps,..) and costs are the key factors that will allow you to decide between different techniques of applications and families of castables.
| |
ZYQJ-500 |
ZYQJ-600 |
ZYQJ-700M |
ZYQJ-700H |
ZYQJ-800M |
ZYQJ-800H |
|
(Kg/m3)
Bulk density
|
450~550 |
550~650 |
650~750 |
650~750 |
750~850 |
750~850 |
|
(Mpa) Cold crushing
strength
|
110℃ |
0.7 |
1.2 |
4.0 |
4.0 |
5.0 |
5.0 |
| 900℃ |
0.7 |
1.2 |
4.0 |
4.0 |
5.0 |
5.0 |
|
(%)
Linear change on reheating
|
-0.8 |
-0.8 |
±0.5 |
±0.5 |
±0.4 |
±0.4 |
|
(W/m.k) Thermal
conductivity
|
350℃ |
0.18 |
0.2 |
0.22 |
|
0.24 |
|
| 500℃ |
0.2 |
0.22 |
0.24 |
|
0.26 |
|
|
(℃)
Max temperature
|
800 |
900 |
1000 |
1200 |
1100 |
1300 |
| |
ZYQJ-900 |
ZYQJ-1000 |
ZYQJ-1100M |
ZYQJ-1200H |
ZYQJ-1400M |
ZYQJ-1500H |
|
(Kg/m3)
Bulk density
|
|
950~1050 |
1050~1150 |
1150~1250 |
1350~1450 |
1450~1550 |
|
(Mpa)
Cold crushing strength
|
110℃ |
7.0 |
8.0 |
9.0 |
13 |
26 |
30 |
| 900℃ |
7.0 |
8.0 |
9.0 |
13 |
26 |
30 |
|
(%)
Linear change on
reheating
|
|
±0.3 |
±0.3 |
±0.2 |
±0.2 |
±0.2 |
|
(W/m.k) Thermal conductivity
|
350℃ |
0.26 |
0.26 |
0.28 |
0.28 |
0.35 |
0.40 |
| 500℃ |
0.28 |
0.28 |
0.30 |
0.30 |
0.37 |
0.45 |
|
(℃)
Max temperature
|
1200 |
1200 |
1300 |
1300 |
1300 |
We could offer you the best refractory castable as following:
1. High alumina castable.
2. low cement refractory castable.
3. corundum castable.
4. Self flowing refractory castable.
5. Corundum mullite castable.
6. Silicon carbide castable.
7. Zirconia Refractory Castable.
8. Lightweight insulation Refractory castable
Features and Advantages of refractory castable:
1. High refractoriness, High refractoriness under load.
2. High density, low porosity.
3. Good slag resistance and corrosion resistance.
4. High strength and wear resistance.
5. Good resistance to flake performance.
6. Good thermal shock stability.
7. Scouring resistance
8. Good hot strength.
Application of high temperature castable refractory cement:
1. Iron&steel making industry:
Blast furnace,hot blast furnace(stove),pellet shaft furnace,hot metal ladle,steel ladle, tundish,heating furnace,soaking pit furnace,heat treatment furnace,refining furnace,reheating furnace,metal mixter furnace,annealing furnace, cupola furnace,electric arc furnace,induction furnace,AOD furnace,VOD furnace,etc thermal technology equipment.
2. Non-ferrous Metal industry:
Smelting furnace,refining furnace,reverberatory furnace,converter furnace.
3. Building materials industry:
Cement kiln,glass kiln,ceramic kiln,lime kilns,kiln car,tunnel kiln
4. Energy & Incineration:Coke oven,general boiler,power,generation,boiler,circulating fluidized bed boiler,electric furnace,carbon rosating furnace,waste incinerators.
5. Others:Petrochemical industry furnace.
Why choose us?
1. Our company has large production capacity(20000tons per year) ensure the fast production cycle after confirmed the order
2. Our company can produce and supply the products according to clients' requirements.To meet the refractory solutions, also can arrange technicians to customers' plant if needed
3. Our company can provide free sample for clients to test the quality.
4. Competitive Price.Make the products competitive in your market.
5. Strict Quality Control.Meet clients' quality requirement.
6. Professional Packing.Avoid damage and secure the goods in transportation
7. Your inquiry related to our products or prices will be replied in 24hours.
8. After sales service:We can provide 24 hours'consultation service.We are ready to answer our consultations at any time.
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