diesel particulate filter application case study...greens creek mining company kennecott minerals...

Greens Creek Mining Company

Kennecott Minerals Company

DPM Workshop

June 5 - 6, 2007Elko, Nevada

Diesel Particulate Filter ApplicationCase Study

Mark L. GoodSr. Mining Engineer

Kennecott Greens Creek Mining Company



Kennecott Greens Creek Mining Company

Multi pronged approach for DPM control– Corrective Measures for Existing Ventilation– Engine Replacement– Exhaust Filtration– Upgrade Mine Ventilation Volumes– Alternative Fuel Trials



Exhaust Filtration

Assess equipment fleet as to primary sources for DPMMSHA listing for Particulate Index (P.I.)P.I. is based on Ventilation Rate to normalize emissions to 1000 μg/m3

Some of your larger engines may not be your biggest polluters



Diesel ParticulateMAJOR EQUIPMENT FLEET

40D Truck 6 475 HP450/1250 Loader 4 300 HP420 Teletram 6 225 HP436 Teletram 2 375 HPWagner ST3.5D 4 200 HPElphinstone Loader 1 165 HPGetman Carriers 11 150 HPNormet Carrier 2 150 HPJumbos 10 75 HPTractors 25 53 HP



Exhaust Filtration

Target Equipment Requirements for Passively Regenerated Filters– 4 Cycle Engines– High Duty Cycle– High Exhaust Gas Temperatures



Exhaust Filtration

• Temperature profiling is imperative• Data logging over several days to gain a good

perspective of operating conditions• Test each piece of equipment in a given

production cycle– Eg; Two LHD’s, similar configuration, one in remote

mucking, the other in manual mucking– One configuration was successful, the other, marginal



4 Channel Data Logger



6” K type Thermocouple



Data Logger, Probe and Case



Toro 40 D Installation



Getman A64 Scissors Truck



Getman A64 Installation



Kubota M5030 Tractor



Kubota M5030 Installation



Temperature Profile

35

40

45

100

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300

400

6AM15 Sun Sep 2002

9AM 12PM 3PM 6PM 9PM 16 Mon 3AM 6AM

LR 46 Temperature 09/11/02

Deg

CD

eg C

LR460913.PL1

LR46 Exhaust deg C

325



Temperature Profile

0

10

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40

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100

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300

29 TueOct 2002

30 Wed 31 Thu 1 Fri 2 Sat 3 Sun 4 Mon

HT 39 Backfill Truck

Deg

CD

eg C

ht391005.PL1

Ambient Compensation Exhaust Temp

325



Diesel Particulate FilterSelection Criteria

Catalyzed Cordierite Filter– 20 % Duty Cycle exceeds 325 Degrees F

NIOSH Filter Guide

– http://www.msha.gov/nioshmnmfilterselectionguide/MNM_DPF_Questions.htm

– http://www.msha.gov/nioshmnmfilterselectionguide/temp_analysis.htm

http://www.msha.gov/nioshmnmfilterselectionguide/MNM_DPF_Questions.htmhttp://www.msha.gov/nioshmnmfilterselectionguide/temp_analysis.htm



Temperature Histogram10-degree C increments

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Temperature, Deg C

Perc

ent

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Coun

t

Count=Num of times exhaust is within T 10-deg "bins" Percent of time that exhaust is greater than T

Temperature Histogram

LR46




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Temperature, Deg C

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cent

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Cou

nt



HT37




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Temperature, Deg C

Per

cent

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Coun

t



HT39




Temperature HistogramPT14 - Mercedes 904 LA

0.0%

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Temperature, Deg C

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nt


PT 14



Passive Filter Installation



Active Filter InstallationGetman A64 Powder Truck



Active FilterMounted on Getman Powder Truck



LR46 - 6 Weeks -Filtered Exhaust



LR46 - 1 1/2 Shifts with no Filter



Pre & Post Filter Samples



Failing FilterDischarge Side - Soot Ghosting, Rotation



Failed Ceramic - Exhaust Bypass



Active Regeneration FiltersLeft – Clean Filter, Right - Soot Loaded Filter



Active Regeneration Station Control Panels



Active Regeneration Station Heater Bases



ThermographHeat Plume of Heating Filter



ThermographDischarge side of Regenerating Filter



MSHA Cooperative TestDPM Sampling - Jan 2003

Average Stope Sample - Total CarbonStopes tested 675 / 704 / 490 / 446 / 30

Sampler mounted on LR46, outside cab– Filtered Equipment : 205 ug/m3

– Unfiltered Equipment : 1,233 ug/m3



MSHA Cooperative TestDPM Sampling - Jan 2003

Average Stope Sample - Total CarbonStopes tested 675 / 704 / 490 / 446 / 30

Sampler mounted on LR46, inside cab– Filtered Equipment : 49 ug/m3

– Unfiltered Equipment : 271 ug/m3



Mark Good – Senior Mining Engineer

[email protected]

(907) 789 – 8122

DPM Workshop��June 5 - 6, 2007�Elko, NevadaKennecott Greens Creek Mining CompanyExhaust FiltrationDiesel ParticulateExhaust FiltrationExhaust Filtration4 Channel Data Logger6” K type ThermocoupleData Logger, Probe and Case Toro 40 D InstallationToro 40 D InstallationGetman A64 Scissors TruckGetman A64 InstallationGetman A64 InstallationGetman A64 InstallationKubota M5030 TractorKubota M5030 TractorKubota M5030 InstallationTemperature ProfileTemperature ProfileDiesel Particulate Filter� Selection CriteriaTemperature HistogramTemperature HistogramTemperature HistogramTemperature HistogramPassive Filter InstallationActive Filter Installation�Getman A64 Powder TruckActive Filter�Mounted on Getman Powder TruckLR46 - 6 Weeks -Filtered ExhaustLR46 - 1 1/2 Shifts with no FilterPre & Post Filter SamplesFailing Filter�Discharge Side - Soot Ghosting, RotationFailed Ceramic - Exhaust BypassActive Regeneration Filters�Left – Clean Filter, Right - Soot Loaded FilterActive Regeneration Station �Control PanelsActive Regeneration Station �Heater BasesThermograph�Heat Plume of Heating FilterThermograph�Discharge side of Regenerating FilterMSHA Cooperative Test�DPM Sampling - Jan 2003MSHA Cooperative Test�DPM Sampling - Jan 2003

diesel particulate filter application case study...greens creek mining company kennecott minerals...

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