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2.11 HIGH VOLUME FLYASH SAMPLER

1.

Equipment

High Volume Sampler

2.

Description

The high volume fly ash sampler is used to

 

 

 

recover a representative sample of fly ash

 

 

 

by traversing the boiler exit or air heater exit

 

 

 

ducts over a short period of time. The flyash

 

 

 

sample is collected by drawing the gas sample

 

 

 

into the collection canister by an aspirator.

 

 

 

Within the canister, the ash is separated from

 

 

 

the gas by passing the sample through high

 

 

 

temperature filtering paper.

3.

Process Details:

 

 

3.1

Duct size

It is to be provided as per the plant data

 

3.2

Medium

Flue gas containing fly ash and unburned

 

carbon

 

 

 

3.3

Temperature

450o C

 

3.4

Draft

- 50mm water column

3.5Smallest particle size 1 –2 microns

3.6

Port size

Usually 100 mm diameter

3.7

Air for aspirator

2 –3 kg/cm2

4.0Accessories:

4.1Aspirator

4.2Quick connect couplings with a spare set

4.35 packs of filter papers

5.0

Quantity

1 set

Section: 2.11 Page 1/1

2.12 HIGH ACCURACY GLASS THERMOMETERS

Partial Immersion Mercury in Glass thermometer, Celsius Model, individual calibrated with engrossed graduations and as per ASTM / National Standards.

SPECIFICATIONS:

Mercury in Glass Thermometer

High Resolution as per ASTM national standards.

Immersion Partial

 

Resolution

1/10 o C

Length

600 / 450 mm

Bulb diameter

5 mm throughout

Immersion length

76 mm

Range

0 o to 50 o C

Quantity

20 Nos.

Section: 2.12 Page1/1

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