Dust Control Handbook for Industrial Minerals Mining and Processing

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REFERENCESthACGIH [2010]. Industrial ventilation: a manual of recommended practice. 27 ed. Cincinnati,Ohio: American Conference of Governmental Industrial Hygienists.Anderson DM [1964]. Dust control design by the air induction method. Industrial Medicine andSurgery. 33:68–72.rdBurton DJ, ed. [1999]. Hemeon's plant & process ventilation. 3 ed. Boca Raton, Florida:Lewis Publishers.EPA [2003]. AP 42, Fifth Edition, Compilation of air pollutant emission factors, volume 1:stationary point and area sources. United States Environmental Protection Agency. Chapter 11:Mineral Products Industry; Background Information for Revised AP-42 Section 11.19.2,Crushed Stone Processing and Pulverized Mineral Processing [online] available at URL:[http://www.epa.gov/ttn/chief/ap42/ch11/]. Date accessed 09/04/2008.Goldbeck LJ, Marti AD [1996]. Dust control at conveyor transfer points: containment,suppression and collection. Bulk Solids Handling 16(3):367–372.NIOSH [2003]. Handbook for dust control in mining. By Kissell FN. Pittsburgh, PA: U.S.Department of Health and Human Services, Centers for Disease Control and Prevention,National Institute for Occupational Safety and Health, NIOSH Information Circular 9465,DHHS, (NIOSH) Publication No. 2003–147.USBM [1974]. Survey of past and present methods used to control respirable dust in noncoalmines and ore processing mills—final report. U.S. Department of the Interior, Bureau of MinesContract No. H0220030. NTIS No. PB 240 662.USBM [1978]. Improved dust control at chutes, dumps, transfer points and crushers in noncoalmining operations. U.S. Department of the Interior, Bureau of Mines Contract No. H0230027.NTIS No. PB 297–422.thWills BA [2008]. Wills' Mineral Processing Technology, 7 ed. Oxford, UK: Elsevier Ltd.Yourt GR [1969]. Design for dust control at mine crushing and screening operations.Canadian Mining Journal 90(10):65–70.Crushing, Milling, and Screening 129
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Report of Investigations 9689Dust C
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FUNDAMENTALS OF DUSTCOLLECTION SYST
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Minimizing Field Fits and Welds ...
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Recommendations for Proper Wet Dril
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CONTROL TECHNOLOGIES FOR FILLING 50
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Effective Filtration ..............
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ILLUSTRATIONSFigure 1.1. Relationsh
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Figure 3.2. The air and water flow
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Figure 9.5. Problem created by heat
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UNIT OF MEASURE ABBREVIATIONSUSED I
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Robert J. Franta, Quotation Enginee
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silica. Quartz is the most common s
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DUST CONTROL HANDBOOK FOR INDUSTRIA
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CHAPTER 1: FUNDAMENTALS OFDUST COLL
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The shape of particles affects how
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EXHAUST SYSTEMS DESIGNAll exhaust s
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stripping, which allows workers to
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When using the air quantities in Ta
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X = distance in feet from the face
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Checklist for Hood EffectivenessThe
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A major disadvantage of the high-ve
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A common misconception when designi
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Avoiding Mitered Elbows Greater Tha
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Figure 1.13. Depiction of the horiz
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Figure 1.14. Typical design of grav
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Baghouse CollectorsBaghouse dust co
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Table 1.2. Emission factors for cru
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Figure 1.17. Typical design of a me
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Reverse Jet (Pulse Jet) CollectorsR
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Figure 1.20. Cartridge collector wi
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Wet scrubbers are particularly adva
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Electrostatic precipitators normall
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may be related to specific applicat
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times. When considering the depth o
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Figure 1.25. Demonstration of how a
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Figure 1.26. A typical fan performa
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Fan TypesThere are two basic types
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Figure 1.30. Typical centrifugal fa
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Figure 1.32. Typical roof ventilato
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The vast majority of dust particles
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Table 2.1. Particle/droplet size in
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Air Atomizing NozzlesAir atomizing
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Hydraulic Flat Fan NozzlesFigure 2.
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for dust knockdown or suppression,
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Nozzle MaintenanceFigure 2.14. Typi
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Accidental DamageInadvertent harm t
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NDT Educational Resource Center, Io
Page 107 and 108: 78 Wet Spray SystemsDUST CONTROL HA
Page 109 and 110: contains a piston which delivers ha
Page 111 and 112: produce an increase in the penetrat
Page 113 and 114: Dry DrillingDry drilling is accompl
Page 115 and 116: Circular ShroudIn contrast to the u
Page 117 and 118: The collector airflow has a more su
Page 119 and 120: Air-Blocking ShelfThe air-blocking
Page 121 and 122: dust emissions from mast lowering,
Page 123 and 124: This simple procedure of creating a
Page 125 and 126: Figure 3.15. Air ring seal used to
Page 127 and 128: Figure 3.17. Illustrations showing
Page 129 and 130: unsubstantiated due to the inconsis
Page 131 and 132: safety considerations may preclude
Page 133 and 134: Figure 3.22. A filtration unit, loc
Page 135 and 136: Miller S, Emerick JC, Vogely WA [19
Page 137 and 138: USBM [1995]. The reduction of airbo
Page 139 and 140: 110 Drilling and BlastingDUST CONTR
Page 141 and 142: Wet Control MethodsPREVENTION AND S
Page 143 and 144: Figure 4.2. Examples of compressive
Page 145 and 146: Figure 4.5. Illustration of a dry (
Page 147 and 148: Figure 4.6. Illustration of a dry (
Page 149 and 150: Wet dust control methods for crushi
Page 151 and 152: Work Practices to Minimize Dust Exp
Page 153 and 154: Some specialty grinding operations
Page 155 and 156: should be frequently inspected for
Page 157: Open screen decks slowly to allow i
Page 161 and 162: DUST CONTROL HANDBOOK FOR INDUSTRIA
Page 163 and 164: There are three primary root causes
Page 165 and 166: direction of the receiving conveyor
Page 167 and 168: Figure 5.8. Depiction of an impact
Page 169 and 170: operational conditions this could m
Page 171 and 172: at different locations in an effort
Page 173 and 174: DESIGN CONSIDERATIONS FOR TRANSFER
Page 175 and 176: Q dis = calculated displaced air, c
Page 177 and 178: Normally, screw conveyors are total
Page 179 and 180: Figure 5.20. Depiction of a typical
Page 181 and 182: The dismantling of these airlock de
Page 183 and 184: Goldbeck LJ, Marti AD [2010]. Dust
Page 185 and 186: 156 Conveying and TransportDUST CON
Page 187 and 188: For valve-type bags, three major du
Page 189 and 190: normally required for most industri
Page 191 and 192: Because of the product and dust emi
Page 193 and 194: Figure 6.6. Extended polyethylene b
Page 195 and 196: disposed of in a safe manner. A new
Page 197 and 198: Figure 6.9. Exhaust hopper below ba
Page 199 and 200: The dual-nozzle bagging system can
Page 201 and 202: these operations, the dust concentr
Page 203 and 204: CONTROL TECHNOGIES FOR CONVEYING AN
Page 205 and 206: entire pallet loading cycle. The li
Page 207 and 208: loaded onto the previous layer. The
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Plastic Pallet WrapThe final consid
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If dust is still being liberated, a
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WORK PRACTICES TO MINIMIZE DUST EXP
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Godbey T [2005]. Recirculating your
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188 BaggingDUST CONTROL HANDBOOK FO
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encases the product transfer sectio
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Figure 7.4. Skirt (in yellow box) a
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DUST SUPPRESSION HOPPERAnother modi
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Operator Booths/Control RoomsOne of
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CHAPTER 8: CONTROLS FOR SECONDARY S
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Clothes Cleaning BoothThe clothes c
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outside all mineral processing plan
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A second regulation is a general in
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type units. Some operations also co
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ventilation design [Cecala and Much
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CostsThe total structure ventilatio
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EXAMPLES OF SECONDARY DUST SOURCEST
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Figure 8.11. Worker closing bag val
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soiled with product, it is then tra
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Maximize the use of remote access f
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CHAPTER 9: OPERATOR BOOTHS, CONTROL
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Obviously, the higher the value for
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In Figure 9.2, the parameter values
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Figure 9.3. Positive cab pressure n
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quantity from 50 to 70 cfm (Q I ) w
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Because of the significant increase
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to be pulled directly back into the
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REFERENCESASABE [2003]. Agricultura
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CHAPTER 10: HAUL ROADS, STOCKPILES,
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oad maintenance, reduce equipment m
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with a smooth drum roller [National
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thickness of the subbase, wearing s
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suppressant is applied to the loose
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During a field study by the Nationa
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Petroleum EmulsionsPetroleum resins
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Other Dust Control MethodsSpeed Con
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performed. Short-term stockpiles co
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Figure 10.11. Example of tillage (f
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soil surface becomes compact and me
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Wind BarriersWind barriers for wind
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Figure 10.17. Layout demonstrating
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EPA [1998]. Section 13.2.2 Unpaved
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Watson JG, Rogers CF, Chow JC, DuBo
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Air velocity. The speed of air trav
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Diffusion. The spread of dust parti
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Hydraulic hollow cone nozzles. In w
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Semi-autogenous. Size reduction of
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Wet drilling. In surface drilling,
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