Background Report Reference

AP-42 Section Number: 11.23

Background Chapter: 4

Reference Number: 40

Title:

-... .

Results of the October 23 and 24, 1979 Particulate Emission Compliance Tests on the Coarse Crusher Discharge, Crusher Dump Pocket Discharge and North Loading Tunnel at the Eveleth Taconite Company Thunderbird Mine

Interpoll, Inc.

Interpoll, Inc.

November 1979

Report Number 9-658 November 28, 1979

I n t e r p o l 1 Inc. 1996 West County Road C

St. Paul, Minnesota 55113

(612) 636-6866

AP42 Seftion 11.23 I Reference __

Report Sect. 4 I

Reference - i RESULTS OF THE OCTOBER 23 AND 24, 1979

PARTICULATE EMISSION COMPLIANCE TESTS ON THE COARSE CRUSHER DISCHARGE, CRUSHER

DUMP POCKET DISCHARGE AND NORTH LOADING TUNNEL AT THE EVELETH TACONITE COMPANY

THUNDERB I RD MI NE

Submitted t o :

EVELETH TACONITE COMPANY P. 0. Box 180

Eveleth, Minnesota 55734

A t t e n t i o n : D. S. Coyle Ch ie f M e t a i l u r g i s t

Approved by:

h

Perry . P i Lon s , ;zad,,, Ph.D.

D i r e c t o r bf Environmental Measurements Sect ion

I n t e r p o l l Inc. 1996 West County Road C

S t . Paul, Minnesota 55113

(612) 636-6866

RESULTS OF THE OCTOBER 23 AND 24, 1979 PARTICULATE EMISSION COMPLiANCE TESTS

ON THE COARSE CRUSHER DISCHARGE, CRUSHER DUMP POCKET DISCHARGE AND NORTH LOADING TUNNEL AT THE EVELETH TACONITE COMPANY

THUNDERBIRD MINE

Submitted t o :

EVELETH TACONITE COMPANY P. 0. Box 180

Eveleth, Minnesota 55734

A t t e n t i o n : D. S . Coyle Chief M e t a l l u r g i s t

Approved by:

n

Report Number 9-658 November 2 8 , 1979

Perry .w* Lon s . L Ph.D.

D i r e c t o r bf Environmental Measurements Sect ion

TABLE OF CONTENTS

SYMBOLS AND ABBREVIATIONS

I INTRODUCTION

2 SUMMARY AND DISCUSSION

3 RESULTS

3.1 Resul ts of Gas Analyses

3.1.1 Test No. 1 Coarse Crusher Discharge 3.1.2 Test No. 2 Crusher Dump Pocket Discharge 3.1.3 - T e s t No. 3 Nor th Loading Tunnel

3.2 Resul ts of P a r t i c l e Concentrat ion Determinat ions

3.2.1 Test No. 1 Coarse Crusher Discharge 3.2.2 Test No. 2 Crusher Dump Pocket Discharge 3.2.3 Test No. 3 North Loading Tunnel

3.3 Resul ts of Opaci ty Determinat ions

3.3.1 Test No. 1 Coarse Crusher Discharge 3.3.2 Test No. 2 Coarse Crusher Dump Pocket 3.3.3 Test No. 3 North Loading Tunnel

APPE?!D I CES :

A - Resul ts of Pre l lm lnary Measurements

B - Locat ion of Test Por ts and Traverse P o i n t s

C - Method 5 F i e l d Data Sheets

D - Method 9 F i e l d Data Sheets

E - Process Rate Log

F - Procedures

G - Calcu la t ion Equations

H - Sarnpllng T r a i n C a l i b r a t i o n Data Sheets

!

i i i

1

2

6

a 9 IO

12 13 14

16 17 18

t !

!

1 INTRODUCTION

On October 23 and 24 , 1979, I n t e r p o l I Inc. personnel conducted a

ag- ser ies of p a r t i c u l a t e emission Compliance t e s t s on t h e Coarse Crusher

house Discharge, the Crusher Dump Pocket Raghouse Discharge and the Nor th

Loading Baghouse Discharge a t t h e Eveleth Taconi te Company - Thunderbird

Mine. On-si te t e s t i n g was performed by E. Trowbridge and 0. VanHoever.

Coord inat ion between p l a n t opera t ion and t e s t i n g a c t i v i t i e s was provided

by D. J a r v i s o f Eveleth Taconi te Company. The t e s t s were no t witnessed

by a member o f t h e Minnesota P o l l u t i o n Contro l Agency.

P a r t i c u l a t e determinat ions were performed i n accordance w i t h EPA

Methods 1-5, CFR T i t l e 40, P a r t 60, Appendix A and t h e r e v i s i o n s to these

methods, FR g ( 1 0 0 ) . Pre l im inary determinat ions o f t h e gas l i n e a r v e l o c i t y

p r o f i l e were made on each o f t h e t h r e e sources before t h e s t a r t of t h e f i r s t

p a r t i c u l a t e determinat ion t o a l low s e l e c t i o n of t h e appropr ia te nozzle d ia -

meter requ i red f o r i s o k i n e t i c sample wi thdrawal. I n t e r p o l l sampling t r a i n s

which meet or exceed s p e c i f i c a t i o n s i n t h e above-cited references were used

t o i s o k l n e t l c a l i y e x t r a c t p a r t l c u l a t e samples by means of a heated s ta in less-

s t e e l l i n e d probe.

Tes t ing on each of t h e t h r e e sources was conducted from e x i s t i n g

t e s t p o r t s located on t h e duct leading t o t h e blower. Test ing pro toco l on

each source was based upon EPA Method 1 s p e c i f i c a t i o n s . A v i s i b l e emission

determinat ion was a l s o performed on each source by a c e r t i f i e d observer.

The important r e s u l t s of t h e t e s t a r e sumnarized i n Sect ion 2. De- t a i l e d r e s u l t s a r e presented i n Sect ion 3. Resul ts of p r e l i m i n a r y measure-

ments, f i e l d data and a l l o t h e r suppor t ing in format ion a r e presented i n t h e

appendices.

i

SYMBOLS AND ABBREVIATIONS

ACFM

DSCFM

D E G F

FT/SEC

GR/ACF

GR/DSCF

9 HRS

IN.

IN. H.G.

IN. W.C. LB

LB/HR

LB/ I O'BTU

mlcrons (pm) MIN

SO. FT.

V/ v

rng/DSCM

LB/DSCF

WH

ohmcm

HP

PS I w/w

ac tua l cub lc f e e t per minute

standard cubic f o o t of dry gas per minute

degrees Fahrenhei t

f e e t per second

g r a i n s p e r actua l cubic f o o t

g ra ins p e r dry standard cub ic f o o t

gram

hours

1 nches

inches of mercury

Inches o f water

pound

pounds per hour

m i i l l o n B r l t l s h Thermal U n i t s heat inpu t

m I cromotor

minutes

square f e e t

percent by volume

m l l l l g r a m s per dry standard cub ic meter

pounds p e r dry standard cub ic f o o t

megawatt hours

ohmcent imeter

horsepower

pounds per square Inch

percent by welght

Standard cond l t l ons a r e def lned as 68 OF (20 OC) and 29.92 In . o f mercury pressure.

1 1 1

!

i

i

n

C 0 t VI w a c c

n z 2

N

z a

-I W LT 0

B I- -

o\ Ln 00 . u nor- 0 r-r- 0 p’ r- o 00 o M o m 0 00 . r.

00 u . I r - n m L n . . . . n - N I I O 0. 0 - a

M N c o m e . 0 -- Nr- - -

cn Ln 00 . u nor- 0 r.p’ 0 m P u 00 0 rn o m 0 00 . p’

N N 0 . . . . 00 u . - 00, -- Nr- * . o - I L n 2 7 M N ..

I L A O L n - N l -

o, o 00 . u n o - o ‘ ~ m I- n P d 00 0 M o m 0 00 . a3 I n - N n . . . . 00 ID . PI - M N - 0 0 1 N I -- Nr- I O O M

- . o -

cno 00 . u r - 0 o o o y - I o , P I D 0 P? 0 NlN N -- I 0 -

t VI W t

0 W t

+-

m n

- u) LL I

t VI W t

0

- +-

E .- I-

-

0 >

u I

2

f!

n 1

a m

n

t L 0

El t VI

a m

> z \ > b4

t C W t

Y

E a L 3 t VI

0 E VI

a

.-

m

L U . > \ >

t u .-

.. LL u I \ Q, m + i - i

rn - W 3

z +

C 0

+

bQ

C

- 0 t m L m > U

t

.-

.-

.- 2 s1 .- Y

-

W t L m

5

El

.- VI VI .- a t

3 u t L

m - - 2

3

. . .

2 SUMMARY AND DISCUSSION

The impor tant r e s u l t s Of t he p a r t i c u l a t e emission compliance t e s t

As w i l l be noted, the measured p a r t i - are summarized i n Tables 1 , 2 and 3 .

c u l a t e concentrat ions ranged from .004 t o .a08 GR/DSCF.

No d i f f i c u l t i e s were encountered i n the f i e l d o r i n the labora tory

eva lua t ion of the samples. On the bas i s o f t h i s f a c t and a complete review

of t h e e n t i r e data and r e s u l t s , i t i s ou r op in ion t h a t t h e p a r t i c u l a t e con-

cen t ra t i ons and emission r a t e s repor ted he re in a re accurate and c lose ly re-

f l e c t t h e ac tua l values which ex i s ted a t t h e t ime the t e s t s were performed.

,

' $ 1 1 a

m r t

5 t m m k

m c c m a- - s u a

- i; c e 2 : m a L n c - + E W L

m > t c - 0 a E 0 0 - - u

m m

t m m c

m o m a f -u

- I - .L

u t

L w m > n w 0

t a r

N:

8 5 w t t

Y L U o m t

m v ) t

a 0 m c m c (La + m x u t c L V

0 >-J L

r m

--

- o m

E a 0 m z

wi

n 2 m -

- n

4 (L

m 0 00 . w MOP- 0 u u u 0 fi N 00 o w o m 0 00 . g

00 0 . 1 - m N U . . . . . o - 0 - w m 0 0 1

N I m n NP- I W 0 - - w

- -

m N 00 . w -01'. o u u o w P - 00 o 00 o m 0 - c o p . o m

00 * N I N - M u . . . . 00 N * . . o - - m m N P

m m 0 0 . co m o r - o n m m m P u 00 0 00 o m 0 0 0

u 0 W P 0 0 1 N I m m NI'.

I r n u w u . . . . 00 d -. . . a - -

t m 0 t

0 m t D

L

a

V m t c > ) . m

i v

c x 0 0 t u m c c m o o w o an c n ~ E L >t o m x - u u o c

- .- : .-

m t L. m

s

s .- m m .-

m t m a - U

t L

.- m a

5

- M

Z 3 (II

m u-t 00 r- -01- 0 m m n Q b - m 00 ~n o o m 0 00 . Ln I n cfm cf . . . . 00 M . o m * ' O N e - m m - N. - I M M Nr- - I O o n - N -

m o r - 0

I - *.- N I I n o m 0

- m

00 . r- o o Ln 0 Q U cf . m w - M w l

M o r - o m 0 o m

. . . RIP.

0 cfu m m 00 . M 00 M . . . a - -

m v\ 00 . m n o - o nln - o r- M 00 o N o m 0 00 . I-

00 9 - i m m m m . . . . . . o w n - m m - o m N l M M NP. i m

-

m L n 00 . c f

N

r - v \ 0 0 0 - I W L n r - L n . M - - m - o n

3 RESULTS

The r e s u l t s o f a l l f i e l d and labora tory evaluat ions are presented

i n t h i s sect ion.

f i r s t , fo l lowed by the p a r t i c u l a t e emission and opac i t y data f o r each source.

Pre l im inary measurements i nc lud ing t rave rse p o i n t desc r ip t i on are given i n

Appendix A and Appendix 6.

Gas composit ion r e s u l t s f o r each source are presented

The r e s u l t s have been ca l cu la ted on a CDC 3300 computer using stan-

dard Fo r t ran programs. EPA-published equat ions have been used as the bas i s

o f t h e c a l c u l a t i o n techniques i n these programs. I t should be noted i n i n -

t e r p r e t i n g these r e s u l t s t h a t t h e p a r t i c u l a t e emission ra tes have been ca lcu-

l a ted by both t h e "concentrat ion x f low" and the " r a t i o of areas" methods

and t h e average repor ted. The average i s t h e bes t est imate o f t he t r u e value,

s ince the b i a s in t roduced by an i s o k i n e t i c sampling i s approximately equal b u t

o f opposi te s i g n i n t h e two c a l c u l a t i o n techniques and thus cancels i n t h e

average.

6

I JOB: EXCO - NORTH THUNDERBIRD INTERPOLL REPORT NO. 9-658

3.1.2 TEST NO. 2 CRUSHER IlUMP POCKET DISCHARGE

RESULTS OF GAS ANALYSES -- METHO11 3 (PERCENT BY VOLUME)

DATE O F RUN

DRY BASIS (ORSAT)

CARBON DIOXIDE

OXYGEN

CARBON MONOXIDE

NITROGEN

WET BASIS (ORSAT)

CARBON DIOXIIlE

OXYGEN

CARBON MONOXIDE

NITROGEN

HOISTURE CONTENT

DRY MOLECULAR WEIGHT

WET MOLECULAR WEIGHT

SPECIFIC GRAVITY (RELATIVE TO AIR)

RUN 1

1 0 / 2 3 / 7 9

e 03

20.90

0

79 .07

e 03

20 t 6 3

0

78 05

1 .29

28 0 84

28.70

,9924

RUN 2

1 0 / 2 4 / 7 9

03

20 .90

0

7 9 07

03

20.68

0

7 8 + 22

1.07

28 .84

28.72

,9922

RUN 3 i i

10/24 /79

03

20.90

0

79 .07

03

20 68

0

7 8 22

1.07

28 e 84

28.72

4 9922

$X CONDENSED WATER VAPOR IN GAS STREAM; MOISTURE CONTENT CALCULATED FROM AVERAGE STACK GAS TEMPERATURE ASSUMING SATURATION,

i

9

L

,., i i

1NTEF;FOl.L REFORT NO, 9-658 -1 JOB: EXCO - NORTH THUNDERBIRD

i TEST NO. 1 COARSE CRUSHER DISCHARGE 3.1.1

RESULTS OF GAS ANALYSES -- METHOD 3 (FERCENT BY VOLUME)

DATE OF RUN

DRY BASIS (ORSAT)

CARBON DIOXIDE

OXYGEN

CARBON MONOXIDE

NITROGEN

WET BASIS (ORSAT)

CARBON D I O X I E I E

OXYGEN

CARBON noNoxIrtE

NITROGEN

DRY MOLECULAR WEIGHT

WET MOLECULAR WEIGHT

SPECIFIC GRAVITY (RELATIVE TO A I R )

RUN 1

1 0 / 2 3 / 7 9

03

20 .90

0

79 4 07

+ 03

20 62

0

78 .01

. 7 . 4 & t U-I

28 6 8 4

28 70

,9912

RUN 2 RUN 3

1 0 / 2 3 / 7 9 10 /23 /79

4 03

20 .90

0

79 .07

03

20.62

0

78 .01

28 84

28 e 70

,9912

+ 03

20 4 90

0

7 9 07

e 03

20 62

0

78 .01

28 84

28.70

,9912

** CONDENSED WATER VAPOR I N GAS STREAM) MOISTURE CONTENT CALCULATED FROM AVERAGE STACK GAS TEMPERATURE ASSUMING SATURATION.

3.2 Results of Particle Concentration Determination

I 1 1

JOB: EXCO - NORTH THUNDERRIRD INTERFOLL REPORT NO. 9-658

3 . 1 . 3 TEST NO. 3 NORTH LOADING TUNNEL

RESULTS OF GAS ANALYSES -- METHOD 3 (PERCENT BY VOLUME) RUN 1 RUN 2 RUN 3

DATE OF RUN 1 0 / 2 4 / 7 9 1 0 / 2 4 / 7 9 1 0 / 2 4 / 7 9

DRY BASIS (ORSAT)

CARBON DIOXIDE + 0 3 t 03 03

OXYGEN 20 + 90 20 t 90 20 90

CARBON MONOXIDE 0 0 0

NITROGEN 7 9 e 07 79 .07 79 07

WET BASIS (ORSAT)

CARBON DIOXIDE 03 0 3 03

OXYGEN 20.72 20 + 72 20 72

CARBON MONOXIDE 0 0 0

NITROGEN 78 37 78 .37 78.37

DRY MOLECULAR WEIGHT 28 * 84 28 84 28 .84

WET MOLECULAR WEIGHT 28.75 28 75 28 75

SPECIFIC GRAVITY (RELATIVE TO AIR) t 9929 ,9929 9929

** CONDENSED WATER VAPOR IN GAS STREAM; MOISTURE CONTENT CALCULATED FROM AVERAGE STACK GAS TEMPERATURE ASSUMING SATURATION,

i 10

JOB: EXCO - NORTH THUNDERBIRD INTERPOLL REPORT NO. 9-658

JEST NO* L CRUSHER DUMP POCKET DISCHARGE 11 3 .2 .2 1

I .. .- -

RESULTS OF PARTICLE CONCENTRATION DETERMINATION -- METHOD s(BE)

I I

I 1 I 1 1 I 1 I I I I I E

I I

RUN 1

DATE OF RUN 10/23/79

TIME RUN START/END(HRS) 1718/1835

PITOT TUBE COEFFICIENT

TOTAL MOISTURE IN GAS SAMPLE (GRAMS)

TOTAL PARTICULATE MATER- IAL COLLECTEDCGRAMS) *

VOLUME THROUGH GAS METER (CF AT METER COND.)

TOTAL SAMPLING TIME (MIN)

NOZZLE DIAMETER (IN)

AVERAGE STACK GAS TEMPERATURE DURING DETERMINATION (DEG-F)

VOLUMETRIC FLOW**

ACTUAL * . e * * * + . . (ACFPO DRY STANDARD 4 , . (DSCFII)

ISOKINETIC VARIATION ( X )

PARTICLE CONCENTRATION.

ACTUAL + + . e . + . + . (QR/ACF) DRY STANDARD (QR/DSCF)

PARTICLE MASS FLOW ( L W H R )

,844

13.0

,0158

46.28

72.0

.243

50

39818 38201

104.1

.0050 ; 0052

1 +73

RUN 2 RUN 3

10/24/79 10/24/79

955/1100 1230/1335

4 844 * 844

10.8

,0128

45 .75 '

72.0

243

45.

39585 38440

10.7

0237

45.58

72.0

243

45.

AUL. 39371 ?plLjsr 38232

103.8 103.5

,0041 0076 e 0 0 4 2 0078

1 .42 2.61

I DRY CATCH ONLY It CALCULATED ON THE BASIS OF VELOCITY PRESSURES MEASURED

DURINQ THIS PARTICULATE DETERHINATION.

13

~

JOB: EXCO - NORTH THUNDERBIRD

INTERPOLL REPORT NO. 9-658

3.2.3 TEST NO. 3 NORTH LOADING TUNNEL I I RESULTS OF PARTICLE CONCENTRATION DETERMINATION -- METHOD BE)

1 1 1 I 1 1 I I 1 1

DATE OF RUN

TIME RUN START/END(HRS)

P ITOT TUBE COEFFICIENT

TOTAL MOISTURE I N GAS SAMPLE (GRAMS)

TOTAL PARTICULATE MATER- IAL COLLECTED (GRAMS) *

VOLUME THROUGH GAS METER ( C F AT METER COND.)

TOTAL SAMPLING TIME ( M I N )

NOZZLE DIAMETER ( I N )

AVERAGE STACK GAS TEMPERATURE DURING DETERtiINATION (DEG-F)

VOLUMETRIC FLOW$*

ACTUAL + * * + . . + + a (ACFM) DRY STANDARD , , , (DSCFM)

ISOKINETIC VARIATION ( X )

PARTICLE CONCENTRATION

ACTUAL . + + + . . * + + (GR/ACF) DRY STANDARD (GR/DSCF)

PARTICLE MASS FLOW (LR/HR)

RUN 1 RUN 2 RUN 3

10/24/79 10/24/79 10/24/79

740/ 843 1110/1212 1618/1720

870

8.3

,0130

42 t 98

60.0

-184

40 *

38425 37809

100.9

004s 0046

1 *49

t 870

8 .4

,0114

43 30

60.0

184

4 0 e

-- --- JU.(JT

37822

102.0

0039 e 0040

1.30

870

8.3

,0122

43 44

60.0

,184

4 0

&Qb.

io0 4

0042 + 0043

1 e40

DRY CATCH ONLY 4% CALCULATED ON THE BASIS OF VELOCITY PRESSURES HEASURED

DURING T H I S PARTICULATE DETERHINATION*

1 4

i

1. ;

1 1 I I

I I I I I 1 . 1 1 I I I 1 I I I

3.3 Results o f Opacity Determinations

15

JOB: EXCO - NORTH THUNDERBIRD

INTERPOLL REPORT NO. 9-658

TEST NO. 1 SOURCE: COARSE CRUSHER DISCHARGE 3.3.1

RESULTS OF OPACITY OBSERVATIONS - EPA METHOD 9

PERCENT OPACITY _ _ _ _ ~

0 5 IO 15 20 25 30 35 40 45 50 55 m 65 70 15 80 85 90

95

I 00

OPTICAL DENSITY

0 .0223 .0458 .0706

.0969

.I249

.I549

.I871

.2219

.2596

.3010

.3468

.3979

.4559

.5229

.602 I

.6990

.e239 I .ooo I .30l

: OBSERVER: .:

RELATIVE FREQUENCY ( % I

100

0

0

0

0

0

0

0 0 0

0 0 0 0

0

0

0

0

0 0

0

TIME AVERAGE

'' CERT I F I CAT I ON DATE : 6-6-19

DATE OF OBSERVATION: 10-23-79

TIME OF OOSERVATION: 0815-0915

16 S - 0 0 8 3 RR

JOB: EXCO - NORTH THUNDERBIRD

INTERPOLL REPORT NO. 9458

TEST NO. 2 SOURCE: COARSE CRUSHER DUMP POCKET . ._ 3.3.2

RESULTS OF OPACITY OBSERVATIONS - EPA METHOD 9

PERCENT OPAC I T

0

5 I O

15 20 25 30 35 40 45 50

55 60 65 70 75 80 85 90

95

I O 0

I .ORSERVER: ..

OPTICAL DENSITY

0 .0223 .0458 .0706 .0969 .I249 . I549 .I871 .2219 .2596 .3010

.3468

.3979

.4559

.5229

.6021

.6990

.82 39 I .ooo I .30l

E. TROWBRtDGE "CERTIFICATION DATE: 6-6-79

DATE OF OBSERVATION: 10-24-79. TIME OF OBSERVATION: 1340-1440

17

RELAT I VE FREQUENCY ( 5 1

65 35 0

0 0

0 0

. o 0 0 0

- 0 ,.

TIME AVERAGE

S-0083RR . .

i 1 I

I I

1 I 1 1 I I 1 1 I 1 1 I 1 I

I I

JOB: EXCO - NORTH THUNDERBIRD

INTERWLL REPORT NO. 9-658 1

, I

3.3.3 TEST NO. 3 SOURCE: NORTH LOADING TUNNEL

RESULTS OF OPACITY OBSERVATIONS - EPA METHOD 9

'ERCENT OPAC I TY

0

5

I O

15

20

25

30

35

40

45

50 55

60

65

70

75

80

85

90

95

IO0

IPTICAL DENSITY

0

.0223

.0458

.0706

.0969

.I249

. I549

. I871

.2219

.2596

.3010

.3468

.3979

.4559

.5229

.602 I

.6WO

.82 39

I .ooo I .30l

. OBSERVER: E. TROWBRIM;€

' I CERT I F ICAT I ON DATE : 6-6-79

DATE OF OBSERVATION: 10-23-79

TIME OF OBSERVATION: 1510-1610

18

iELATlVE FREQUENCY ($)

100

0 0

0 0 0

0

0

0 0 0 0 0

0

0

0 0 0

0 0 0

TIME AVERAGE

S-0083RR