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The Evolution to Dry Ash Handling

What is Dry?

INDUSTRY TRENDS

IncreasIng government regulatIons

ash pond capacIty constraInts

Water avaIlabIlIty

groWIng demand For reuse oF ash

pi i, i i i f if

i w i i. I f i

w i x ii . s-f-- i

f ucc ff i iii f iz

i i.

d i f i i i , i

f i. t i f iii i ii w f w f i f . hw, wi

iiiz ii w f i ii w

i . t ii f i i, wi f

i f w 100% iii f w.

Ash Handling Solutions

r i- ii i fi fi w

- w i i. uii i i i i

- i i k w wi i.

o fw ui c ci (ucc) i iii i

i f w k f:

I i wi pw ri bi f-wii iiii

a k , i f i

t x if f f i-i .

a f 2008, 67% f wi , wi

10% f .

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Experience Matters

ui c ci i i f ,

f - w . a iz i , w wi

iii, i ii w i i wwi i -

i k ii i f.

si 1920, ucc f ii, f i. W

ffi i i i i i

f f .

One Company...the Right Solution

Fly Ash Systems

v s (nuveyor

) p s (nuva Feeder, depac midactm)

cii v/p s

hi di s s

Bottom Ash Systems

rii s s Fi c (sFctm)

pi a ex (paXtm)

vii a ex (vaXtm)

UCC ASH HANDLING SOLUTIONS ARE...

specIFIcally engIneered For each plant

desIgned to Improve plant perFormance

envIronmentally FrIendly solutIons

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Fly Ash Choices

d i f w ii fw

si 1920, ucc i f ii i 50 i. ri

xii w hydroveyor i i wi ii f fw

.

ui i xi, f , ucc wk i wi

i i f i i i. t i

i nuveyorv s, cii v/p s (nuva Feederf

i depacf i) p s.

t f z w ii wi f i w

i f .

Conversion Utilizes Existing HydroveyorVacuum System

Common Criteria Used to Evaluate Fly Ash Choices:

c F F a f ?

exii pi W i iz i?

h hw i i ?

v/p tf si If i, w i i ?

li W wi i ?

di/ri hw f i i/i?

ci W i i w f i i?

Fi di m Wi i f ii ?

afk cii W ki/ ii?

NUMBER OFINSTALLATIONS

2000+NUVEYOR 1000+NUVA FEEDER

400+DEPAC 50+MultiDAC

Phase Dilute Medium Dense Dense

Maximum Distance 1500 feet 8000 feet 5200 feet 1500 feet(450 meters) (2400 meters) (1600 meters) (450 meters)

Maximum Capacity 80 TPH 175 TPH 200 TPH 130 TPH(75 mTPH) (155 mTPH) (180 mTPH) (120 mTPH)

Material Ratio 5-22 5-22 25-60 25-60Ash : Air Ash : Air Ash : Air Ash : Air

Air Velocity 3000-5200 ft/min 2400-4800 ft/min 900-2700 ft/min 900-2700 ft/min(16-27 m/sec) (12-25 m/sec) (5-15 m/sec) (5-15 m/sec)

Maximum Conveyor 20 inches Hg 40 psi 60 psi 60 psiLine Pressure (530 mm Hg) (275 kPa) (415 kPa) (415 kPa)

Fly Ash Systems

NUVEYOR NUVA FEEDER DEPAC MultiDACTM

(Vacuum) (Pressure) (Pressure) (Pressure)

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Vacuum System

t nuveyor i i f fi,

i i f 1500 f. (450) i

ii 80 tph. W i f w-- i,

xii i i i .

t ii f fw ii i i i:

Fi/s

s bi ui ei

mi ex v p

nw y si ci pii

NUVEYOR SYSTEM

reuse eXIstIng vacuum system

ease oF retroFIt In lImIted space

cii / w i

i x iii f . t

i k f iii w f xii

ik , wi ii

f i i i i

i. I / , x

i f ii

i f k. F i, nuva Feeder

depac i i.

NUVA FEEDER SYSTEM

abIlIty to convey long dIstances

can handle economIZer ash

DEPAC SYSTEM

dense phase - loW velocIty

Combination Vacuum/Pressure Systems

v s

wi si

Pressure SystemsWi fi i , xii

wi nuva Feeder, depac

midac , iii f ii f k.

Fi/s p s

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Choosing The Right Dry Bottom Ash System

Bottom Ash Choices

ui c ff f -f-- i

i. F iff hi, mi, pi vi

i ii f iii w

. Wi f ii 90 f xi, ucc i

f i .

e i f iff ii w i i

.

Common Criteria Used to Evaluate Bottom Ash Choices:

pi s ci W i i?

di, mi Ii c W i ?

mi c W i 20- if- ?

ti ai f Ii hw i ?

W u/aiii hw w i i f i i?

oi c W w i i?

mi ui si c k i f i i?

s/di hw wi /?

t ifi i ii.

Total Installed Cost $$$$ $ $$ $

Lead Time 9 months 9 months 12 months 12 m

Outage

Pre-Outage Construction 6 months 2 months 3 months 3 m

Requirement Outage Construction 5 days 3 4 weeks 8 weeks 6 w

Outage Start-Up 2 3 days 1 2 days 3 4 days 1

Water

Make-Up Water 600 gpm 50 gpm None N

Consumption

Cooling Water 200 gpm 400 gpm None N

Conveying Water 400 gpm None None N(recirculating)

Power

Pumps 600 HP 50 HP None N

Consumption Blowers/Fans None None 200 HP 50

Mechanical Drives 50 HP 100 HP 50 HP 75

Boiler and Yard Yard Piping Corridor Yes No Yes

Space Boiler House Exit Corridor No Yes No Y

Yard Footprint 6500 sq. ft. 1000 sq. ft. 1500 sq. ft. 1500

Pumps Yes No No

Operations and

Blowers/Fans No No Yes Y

Maintenance Refractory Yes existing Usually none Yes Usual

Costs Conveyor Chain Replacement No Yes No

Crushers Yes existing Usually none Yes (2 3) Ye

Conveying Pipeline/Valves Yes No Yes

Bottom Ash Systems Recirculation SFC PAX V (Hydraulic) (Mechanical) (Pneumatic) (Vibr

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t wi i iii wi

ik i w i.

F x, if ii

i x 12-24 i f -wk i i,

i hi rii

s. If 100% iii f w i i,

w i: i

i (paX) i i (vaX).

BOTTOM ASH SYSTEMS

recIrculatIon system

submerged FlIght conveyor (sFctm)

pneumatIc ash eXtractor (paXtm)

vIbratory ash eXtractor (vaXtm)

NUMBER OF INSTALLATIONS

75+100+200+

1,000+

RECIRCULATION SYSTEM

SUBMERGED FLIGHT CONVEYOR

PNEUMATIC ASH EXTRACTOR

HEAVY-DUTY HOT INDUSTRIALAPPLICATIONS UTILIZING

VIBRATORY TECHNOLOGY

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Simple Conversion with a Successful Track Record

a rii s w i i wi

xii . ti i w

i f k- w. a ii

wi wi i, ifi (i) k () k.

ti i f i w w i i ii

i i i k i. o i,

rii s i fw f i i.

Recirculation System

shortest outage tIme For conversIon

contInued use oF eXIstIng bottom ash hoppers

easIly Incorporates mIll rejects

elImInates ash storage ponds

System Operation

I i , w wi i i; i wi i

w i k i . W w i k

k. I i k, f

i wi i.

W i i k i i

k w ii w

xii i .

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System Operation

contInuous removal oF ash

loW poWer consumptIon

easIly Incorporates mIll rejects

elImInates ash storage ponds

Submerged Flight Conveyor (SFCtm)

The Industry Leader with Proven Performance

t s Fi c (sFc) i -ffi

i w i wi i . W i w i i

ii f, i sFc i w i. Wi ii

i w, i f iii.

t i f i i wi, ki i i i

iz. t sFc i i wi iz - (pc) i, w (i)

i, k-f i i ii.

oi f s Fi c i i. a f f

i i w-, . ci

i iz wi .

a f , f

i i k, w

i i k f i.

t i i w () f

.

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Time Proven Technology with Routing Flexibility

t pi a ex (paX) s i f

i w iii f w i i. t paX

iiz i- i f

i . ti i i i fi.

t i i paX s:

a w i , f .

a f i.

a i i i f i.

System Operation

s w i i i w f w .

gi f w ik

i ; w , i i w i

i -i . ti i .

F , w i i

i.

Pneumatic Ash Extractor (PAXtm)

easIly retroFItted around structural barrIers

provIdes Improved heat recovery and boIler eFFIcIency

does not requIre Water

elImInates ash storage ponds

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Next Generation Technology for Dry Bottom Ash Handling

System Operation

di f iii f wi i i , vaX s

i i i i i i i i.

ui i i , i i f i

w i i -- i. c f f i

i k i f i i w

w, i iiz f . t i i i i.

Vibratory Ash Extractor (VAXtm)

proven technology

hIghest heat recovery

loWer operatIng cost

elImInates ash storage ponds

t vi a ex (vaX) s i i f ,

i i i fi . I i i, - -ffi

i k.

t vaX f i i x i

ii f - w . uik i ,

i i i f f fi i

w i. t i iii ik f .

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ucc i f f i i

UCC Material Handling Solutions

Fly Ash (di, mi d p)

v s

p s

Bottom Ash (W d si)

hi s

pi s

mi s

vi s

Mill Rejects

hi s

pi s

Reagent Handling Systems

Pulverized Fuel

System Components

c

tk/v

Fi/s

g/v

mix/ u

pi/Fii

a i i, w ff f i . W iz i f ii

wi i i i

i .

Wi w i , w i

i i f i. t

i i i f f .

o i f i, , i i- i

i ix i, i w i

xi i w . ti i i .

The UCC Commitment

u n i t e d c o n v e y o r . c o m

Global Operations in:

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Over 50 Offices Worldwide