Coal is fed , via 3 parallel feed system , into __ furnace front wall openings.

Feed system is designed to handle  __% of the MCR boiler fuel requirements.

The knife gates utilize a __ and __drive arrangement to allow for closure against fuel silo.

mounted in each of the downspout below the coal silo isolation valve outlet - detect material flow.

Sub assemblies of flow monitor mounts on the downspout. (Stainless steel alloy tip)

Sub assemblies of flow monitor - suitable for wall mounting in convenient location. ( electronics, alarm relay and comparator circuitry.)

Each feeder have __ mm wide belt.

Center feeder is __ mm and outboard feeders are 7061mm inlet discharge length.

Each feeder designed for __  ksc (g) internal pressure.

Sorbent (limestone) material from daily silo is injected into the furnace at __ points to control SO2  emission and stack outlet.

The system dispensed limestone through conveying pipe-works to the boiler unit via 4 way splitter and 4 (2way splitter).

One pressure vessels of rotofeed machine, driven through gearbox by a standard induction motor.

VFD  meaning?

Vessel use to provide constant supply of material to volumetric feeder.

Used to periodically replenish the dispensing vessel with material providing pressure lock between high pressure environment of dispensing and lime stone silo.

Each flow ___ (splitter) 5 per system , provided with abbrasion - resistant contact surfaces and balancing shoe, for system balancing.

During conveying of sand (inert) - air also introduce at points along pipe via __ to ensure smooth conveying.

Mean particle size of bed material is in the range of __ microns

about 60% of combustion air is passed as primary fluidizing air preheated approximately what temperature?

The balance of the air is admitted as secondary air also preheated  to approximately what temperature?

Complete combustion,  using __ % of excess air in the upper section.

Stage combustion, controlled low temperature and effectively suppresses___ formation.

Flue gas exit from furnace , 2 cyclone are designed to remove above __ % of solids entrained by gas from combusyion chamber.

Furnace temperature are affected by __ property, PSD of coal, limestones and makeup bed material.

In furnace temperature is above __ C , it shall contact commissioning supervisor of FHI for final check.

CFB combustion chamber is rectangular single grate design of __ mm wide.

CFB combustion chamber is at rectangular single grate design at __ mm deep.

Nozzle heads are made of heat resistant cast metal with __hole outlets.

Nozzle are spaced on approximately __ inches centers in an evenly distributed grid.

The lower furnace consist of water walls that are refractory line to a height of about __mm from furnace grate.

1st purpose of refractory line - allowing for faster restart.

2nd Purpose of refractory line - reducing environment.

3rd purpose of refractory line - protection against fluidize bed is afforded.

The upper section is rectangular design and made up at evaporative water walls maintained in placed by a grid of ?

Furnace evaporator panels (C-23)  consist of 6  (six) __mm O.D tube fin welded assemblies.

Cyclones are fabricated  from __mm thick carbon steel and are refractory lines.

Cyclones have inside diameter of __mm and  overall height of approximately 24 542mm including domes.

Vortex finder made of abrasion and heat resistant alloy steel is supportedby __ equally spaced lugs around the vortex finder perimeter.

2 standpipes are provided, each pipe is refractory lined __mm diameter inside refractory lining.

2 solid return ducts sectionare supplied, ducts are made of carbon steel, refractory line with____ mm diameter inside refractory and are provided with expansion joint.

At normal load , the fluidizing air blower expected to supply up to approximately __ kg/hr at 5 230mmh20

Start up burners are retracted  when furnace temperature reaches approximately?

The minimum turndown of each burner is approximately  __ % of MCR?

Flue gas leaving the Ljungstrom Air preheater  is cooled to C?