Ascending Pipe Pre-cast Refractory

Main Composition: Al2O3≥50%

Application: Industrial Furnaces and Equipment

Bulk Density : ≥2.1g/cm3

Color: White

Refractoriness: ≥1700℃

Apparent Porosity : ≤28%

Capacity: 1000 MT per month

Package: Export wooden pallets and polyboard

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Introduction:
The lining of ascending pipe upper structure is made of monolithic casting refractory; bottom structure is made of high temperature glazed refractory. There is less carbon deposit on the surface of the pre-cast refractory. New type pre-cast plays a very good role in thermal insulation.

Features:
1.Smooth surface.
2.Simple structure.
3.Long working life.

4.Energy saving.

Application:
It's mainly for coke oven.

Technical Data:

Item	Glazed
ω(Al₂O₃) /% ≥	50
ω(MgO) / % ≥	2.5
Apparent Porosity /% ≤	28
Bulk Density /g/ cm³ ≥	2.1
Cold Crushing Strength /MP ≥	40
Rupture Strength /MP ≥	4
Thermal Conductivity/W/ (m·K)1000℃ (Heating side) ≤	1.2
Thermal Shock Resistance (1100℃, water cooling) /cycle ≥	50

Item		Normal
ω(Al₂O₃) /% ≥		50
ω(MgO) /% ≥		2.5
Apparent Porosity /% ≤		28
Bulk Density /g/cm³ ≥		2.1
Cold Crushing Strength /MPa ≥	110℃*24h After drying	35
	1350℃*3h After firing	40
Rupture Strength /MPa ≥	110℃*24h After drying	3.5
	1350℃*3h After firing	4
Thermal Conductivity/W/ (m·K)1000℃ (Heating side) ≤		1.2
Thermal Shock Resistance (1100℃, water cooling) /cycle ≥		50

Comparison between new type and traditional type:

New Type	Traditional Type
Smooth surface, less joints, less carbon and dust deposition	Traditional ascending pipe is installed by refractory bricks, after installation, the surface is rough and has many joints. It is easy to accumulate coal and dust.
Simple structure New type consists of three parts: glazed base, glazed bottom pipe, monolithic casting upper pipe.	Complicated structure
Easy to install the ascending pipe, using the bolts to link the three parts.	Complicated installation
Reduce the repair times and save the cost.	Frequent repair and high cost
Long working life	Short working life
Solve the gas leakage problems, reduce the environment pollution and heat dissipation, lead to energy saving.	Long time mechanical operation and chemical damage on the joints, leading the joints to become bigger. Gas leakage and environment pollution.

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