Technical requirements of castable refractory construction

Castable refractory construction technology requirements:

Anchoring nails welded framework supporting, castable construction, casting, curing, and form removal.

(A) Anchoring nails welded

1 .Anchor nail materials and specifications must be in accordance with the design requirements of the procurement.

2. Distribution and welding quality anchoring nails must be according to the design requirements.

(B) Framework supporting

1. Accurate size, meet the design requirements.
2. Support firm, tight seams ride, missed pulp.
3. Corrosive or strong adhesion castable site isolation layer should be in the template.
4. Reserved for expansion joints of wooden strips should be fixed firmly to prevent vibration during that shift.
5. Before pouring, the template should be brushing release agent.

(C) Castable refractory construction

1. Castable once stirred volume should be limited to less than 30min run.
2. Castable should continuously pouring, pouring the first layer of material before the initial setting, the next layer should be finished pouring castable, if intermittent exceed its initial setting time of construction, construction joints should be required to deal with.
3. When using plug-in vibrator, pouring layer thickness should not exceed 1.25 times the length of the vibrating rod action part, when using flat vibrator, its thickness should not exceed 200mm.

(D) Chaimo

1. Does not load the template should be castable strength to ensure its surface and edges are not damaged due to release the case of form removal.
2. Load a template; you should castable strength of more than 70%, before form removal.

Application of unshaped refractory materials

Unshaped refractory material is composed of reasonable distribution in the granular and powder and binder not forming and firing directly use of the refractories. Then what is the different unshaped refractory material application area, let us see it.

1. Ironmaking system.

• Alumina silicon carbide carbon refractory castable for blast furnace trough.
• As with hot-air burner refractory pouring castable lining.
• Torpedo type iron waterwheel partial or full using refractory castable, can also use refractory coating to repair.

2. Rolling system.

• All available unshaped refractory lining, steel forging heating furnace.

3. The steelmaking system.

• The cement rotary kiln.
• Glass tank furnace.
• Ceramic kiln.

4. Other industrial system.

• Petrochemical industry, ferrous metallurgy, fluidized bed boiler.

5. Building system.

• Refractory coating repair of BOF and eaf.
• Slag splashing.
• Alumina magnesia castable making converter lining.

Above is the simple introduction application of unshaped refractory materials, thank you for reading, more detailed information can contact us, we will try our best to answer your questions.