A Presentation on Refractory for Thermal Power Plant.

$: A Presentation on Refractory for Thermal Power Plant.$
A Presentation on Refractory for Thermal Power Plant

Roadmap

Introduction Challenges to power sector Product range Product data sheet

Introduction

As we all know, India is a developing country. With the introduction of economic reforms and after being a part of the WTO, India is on the high road of development.

Power generation is the backbone of a developing economy. With the rise in industrial production as well as the uplift of life of people, coupled with a sharp rise in the housing sector, India is witnessing an unprecedented growth in the demand for power.

Contd.

As a consequence to this, power sector is growing and the growth in power sector seems to have come to stay.

With this backdrop, refractories for power plants promise to be on an ever-growing demand.

PASSARY MINERALS LTD., Rourkela, India, a pioneering company in producing technology-intensive and technologically challenging refractories, offers a basket of refractory products for the Power sector.

Refractories for Thermal Power Plants

ChallengesRefractories for Power Plants are subject to

the following challenges:

1. Severe Abrasion Resistance.

2. High level of Corrosion / Sulphur attack.

3. High Thermal Spalling.

4. Carbon Monoxide attack.

5. Alkali attack.

PASHEAT K

PASHEAT A

PASHEAT 95

PAS LC 70SC

PAS ULCM 70TA

PASULYTE - 11 HIPER


Product Range with featuresOur product range for the above include :

A. Medium Temperature Dense Castable PASHEAT K :

1. Best at the medium temperature range i.e.1000 – 1300 degC.

2. High Refractoriness.

3. Good against Carbon Monoxide attack.


B. High Temperature Dense Castable PASHEAT A :

1. Best at the higher temperature range i.e.1300 – 1600 degC.

2. High spalling resistance.

3. High refractoriness.

4. Good abrasion resistance.

5. Strong against sulphur attack.


C. High Purity High Temperature Dense Castable PASHEAT 95 :

1.Best at the higher temperature range i.e.1600 degC + range.

2.Very High Refractoriness.

3.Very High Abrasion Resistance.

4.Very High Spalling Resistance.

5.Exceptionally strong against sulphur attack.


D. Ultra Low Cement Tabular Alumina containing castables PAS ULCM 70TA :

1. High Spalling Resistance.

2. Consistently High strength at all temperatures.

3. High Abrasion Resistance.

4. Good against Corrosion.


E. Silicon Carbide containing Low Cement Castable PAS LC 70SC :

1. Very High Corrosion Resistance.

2. High resistance against Alkali attack.

3. Very high Abrasion Resistance.

4. Good Spalling Resistance.

5. High Refractoriness.


F. High Performance Insulating Castable PASULYTE – 11HiPer :

1. Specially designed for Power Generation /

Hydrocarbon sector.

2. High thermal stability.

3. High Insulating property.

PASHEAT K DESCRIPTION PASHEAT ‘K’

Base Component Cal-Diaspore

Physical Properties

Recommended Service Temp. oC ( max ) 1600

Refractoriness 0C ( Min ) / Orton (min) 1683 / 31

Linear Change % in 0 C / 3hrs ( max ) 1.51550

Thermal Conductivity kcal/m/hr/0 C at 400 0 CHF at 600 0 CHF at 800 0 CHF

0.820.840.86

Dry Density ( gm/cc ) after drying at 110 0 CCold Crushing Strength (kg/cm2) after drying at 110 0 C / 24 hrs.

2.2350

Reversible Thermal Expansion at 1000 0 C (%) Maximum Grain Size (mm)

0.585

Chemical AnalysisAl2O3 (%) Min 60

Fe2O3 (%) Max <1.5

PASHEAT ADESCRIPTION PASHEAT ‘A’

Base Component BTA

Physical Properties



Linear Change % in 1500 0 C / 3hrs ( max ) 1.0

Thermal Conductivity kcal/m/hr/0 C at 400 0 CHF at 600 0 CHF at 800 0 CHF

1.121.201.28

Dry Density ( gm/cc ) after drying at 110 0CCold Crushing Strength (kg/cm2) at 110 0C / 24 hrs.

2.75600

Reversible Thermal Expansion at 1000 0 C (%) Maximum Grain Size (mm)

0.785

Chemical AnalysisAl2O3 (%) Min 90

Fe2O3 (%) Max <1.0

PASHEAT 95DESCRIPTION PASHEAT 95

Base Component White Tabular and White Fused Alumina

Physical Properties



Dry Density ( gm/cc ) after drying at 110 0 C (min)

Cold Crushing Strength (kg/cm2) at 110 0 C at 10000 C

2.90

700700

PLC (%) max. after heating at 11000 C/2hrs. at 15500 C/3hrs. Maximum Grain Size (mm)

+/-0.3+/-0.5

5, 8 depending on customer’s requirement

Water of Casting 6.0—6.5 %

Chemical Analysis

Al2O3 (%) Min 95

Fe2O3 (%) Max 0.3

PAS ULCM 70TADESCRIPTION PAS ULCM 70TA

Base ComponentSintered Mullite & Tabular

Alumina

Physical Properties

Refractoriness oC 37

1820

Maximum Service Temperature 0C 1750

Dry Density (gm/cc) after drying at 110 0 C 2.60

Cold Crushing Strength (Kg/cm2) after drying at 110 0 C/24 Hrs at 800 0 C/3 Hrs at 1100 0 C/3 Hr

500850

1100

P. L. C % (max) after heating at 1100 0 C min 0.2

% Water Required for Casting 4.7 – 5.3

Maximum Grain Size (mm) 0 – 5

Chemical Analysis

Al2O3 (%) Min 70.00

Fe2O3 (%) Max 1.2

PAS LC 70SCDESCRIPTION PAS LC 70SC

Base Component Corundum with Silicon Carbide

Refractoriness oC 37

1820

Maximum Service Temperature 0C 1750

Dry Density (gm/cc) after drying at 110 0 C 2.60

Cold Crushing Strength (Kg/cm2) after drying at 110 0 C/24 Hrs at 800 0 C/3 Hrs at 1100 0 C/3 Hr

750850

1000

Modulus of Rupture (Kg/cm2), Min. 120

P. L. C % (max) after heating at 1100 0 C min 0.2

% Water Required for Casting 5.0 – 5.5

Maximum Grain Size (mm) 0 – 5

Apparent Porosity (ASTM C20) 16% Max.

Panel Spalling Resistance, 1650°C 4.0 Max.

Al2O3 (%) Min 50.0

SiC (%) Min 20.0

Fe2O3 (%) Max 1.2

PASULYTE – 11 HiPer DESCRIPTION PASULYTE – 11 HiPer

Base Component Insulating Aggregate

Recommended Service Temp. 0C 1275

Maximum Grain Size (mm) 6

Water Required for Casting 35 – 45 %

Thermal Conductivity (W/m-K )At 260 0C At 550 0C At 820 0C At 1100 0C

0.200.250.270.30

Bulk Density, gms/cc.At 8200CService Temperature

1.05 max.1.05 max.

Cold Crushing Strength (kg/cm2) At 110 0 C/ 24 HrsAt 8200C/ 5 Hrs.Service Temperature/ 5 Hrs.

30 min.30 min.30 min.

Modulus of Rupture (kg/cm2) At 110 0 C/ 24 HrsAt 8200C/ 5 Hrs.Service Temperature/ 5 Hrs.

8 min.8 min.

10 min.

Al2O3 (%) Min 40.0

Fe2O3 (%) Max 0.9

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A Presentation on Refractory for Thermal Power Plant.

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