Industrial Equipment Selection Chart

Ceramics	Concentration*	Particle Sizes**	Cyclones	Cartridge  Collectors	Electrostatic Precipitators	Trion DCU	Media Unit***	Portable Dust	Note
Raw Product Handling	Light	Fine	Yes	Yes	No	Yes	Possible	Yes	1
Fettling	Light	Fine to Med.	Possible	Yes	No	No	Possible	No	2
Refractory Sizing	Heavy	Coarse	Precleaner	Yes	No	Yes	Possible	Yes	3
Glaze/Vitr. Enamel Spray	Moderate	Medium	No	Possible	No	No	No	No
Chemical	Concentration*	Particle Sizes**	Cyclones	Cartridge  Collectors	Electrostatic Precipitators	Trion DCU	Media Unit***	Portable Dust	32
Material Handling	Light to Moderate	Fine to Med.	Yes	Yes	No	Yes	Yes	Yes	4
Crushing, Grinding	Mod. to Heavy	Fine to Coarse	Yes	Yes	No	Possible	Yes	Possible	5
Pneumatic Conveying	Very Heavy	Fine to Coarse	Yes	Yes	No	No	No	No	6
Roaster, Kiln, Cooler	Heavy	Med. to Coarse	Possible	No	No	No	No	No
Bin Venting	Heavy	Fine to Coarse	No	Yes	No	Possible	No	Possible
Coal Mining & Powder Plant	Concentration*	Particle Sizes**	Cyclones	Cartridge  Collectors	Electrostatic Precipitators	Trion DCU	Media Unit***	Portable Dust	32
Material Handling	Moderate	Medium	Yes	Yes	No	Possible	No	Possible	7
Bunker Ventilation	Moderate	Fine	Possible	Yes	No	No	No	No	8
Dedusting, Air Cleaning	Heavy	Med. to Coarse	Possible	Yes	No	Yes	Possible	Yes	9
Foundry	Concentration*	Particle Sizes**	Cyclones	Cartridge  Collectors	Electrostatic Precipitators	Trion DCU	Media Unit***	Portable Dust
Shakeout	Light to Moderate	Fine	No	Yes	No	Possible	Yes	Possible
Sand Handling	Moderate	Fine to Med.	No	Yes	No	Possible	No	Possible	10
Tumbling Mill	Heavy	Med. to Coarse	No	Yes	No	Possible	No	Possible	11
Abrasive Cleaning	Mod. to Heavy	Fine to Med.	No	Yes	No	Yes	Possible	Possible	12
Grain Elev., Flour/Feed Mill	Concentration*	Particle Sizes**	Cyclones	Cartridge  Collectors	Electrostatic Precipitators	Trion DCU	Media Unit***	Portable Dust	32
Grain Handling	Light	Medium	Yes	Yes	No	No	No	Yes	13
Grain Dryer	Light	Coarse	No	No	No	No	Possible	No
Flour Dust	Moderate	Medium	Possible	Yes	No	Yes	No	Possible	15
Feed Mill	Moderate	Medium	Possible	Yes	No	Yes	No	No	15
Metal Mining & Rock Prod.	Concentration*	Particle Sizes**	Cyclones	Cartridge  Collectors	Electrostatic Precipitators	Trion DCU	Media Unit***	Portable Dust
Material Handling	Moderate	Fine to Med.	No	Yes	No	Possible	Possible	Possible	16
Cement Grinding	Moderate	Fine	No	Yes	No	Possible	No	Possible	17
Cement Clinker Cooler	Moderate	Coarse	No	Yes	No	Possible	No	Possible	18
Metalworking	Concentration*	Particle Sizes**	Cyclones	Cartridge  Collectors	Electrostatic Precipitators	Trion DCU	Media Unit***	Portable Dust	32
Grinding, Scratch Brush., Abrasive Cut Off	Light	Coarse	Yes	Yes	No	Yes	Yes	Yes	19
Portable & Swing Grinder	Light	Medium	Possible	Yes	No	Yes	Yes	Yes
Buffing	Light	Varies	No	Possible	No	Yes	Yes	Yes	20
Tool Room	Light	Fine	No	Yes	Yes	Yes	Yes	Yes	21
Cast Iron Machining	Moderate	Varies	No	Yes	No	No	Yes	No	22
Wet Machining	Moderate	Varies	No	No	Yes	No	Yes	No
Welding	Light	Fine	No	Yes	Yes	Possible	Yes	No
Arc & Flame Cutting	Varies	Fine	No	Yes	Possible	Possible	No	No
Abrasive Blasting	Moderate	Fine to Med.	No	Yes	No	Possible	No	Possible	12
Carbon Arc Gouging	Light	Fine	No	Yes	Possible	No	No	No	23
Bar Machine/Chuckers	Mod. to Heavy	Fine	No	No	Yes	No	Yes	No
Cold Header	Light to Moderate	Fine	No	No	Yes	No	Possible	No
Die Casting	Light	Fine	No	No	Yes	No	Possible	No
EDM	Light	Fine	No	No	Yes	No	Possible	No
Metal Spraying	Light	Fine	Precleaner	Yes	No	No	No	No
Plasma/ Laser Cutting	Light to Moderate	Fine	No	Yes	No	No	No	No
Screw Machine	Light to Moderate	Fine	No	No	Yes	No	Yes	No
Transfer Line	Light	Fine	No	No	Yes	No	Yes	No
Vacuum Pump	Light	Fine	No	No	Yes	No	Possible	No
Pharmaceutical & Food Prod.	Concentration*	Particle Sizes**	Cyclones	Cartridge  Collectors	Electrostatic Precipitators	Trion DCU	Media Unit***	Portable Dust	32
Mixer, Grinder, Weighing, Blending, Bagging, Pack.	Light	Medium	Yes	Yes	No	Yes	Yes	Yes
Coating Pan	Varies	Fine to Med.	Yes	Yes	No	No	Yes	No	24
Plastics	Concentration*	Particle Sizes**	Cyclones	Cartridge  Collectors	Electrostatic Precipitators	Trion DCU	Media Unit***	Portable Dust	32
Raw Material Processing	See Comments Under Chemicals		Yes	Yes	No	Yes	Possible	Yes	25
Plastic Finishing	Light to Moderate	Varies	Yes	Yes	No	Yes	Possible	Yes	26
Plastic Extrusion	Light	Fine	No	No	Yes	No	Possible	No
Rubber Products	Concentration*	Particle Sizes**	Cyclones	Cartridge  Collectors	Electrostatic Precipitators	Trion DCU	Media Unit***	Portable Dust	32
Mixer, Grinder, Weighing, Blending, Bagging, Pack.	Moderate	Fine	Possible	Yes	No	No	Yes	No	27
Batch-out Roll	Light	Fine	No	Possible	Yes	No	Possible	No	28
Talc Dusting & Undusting	Moderate	Medium	No	Yes	No	Yes	Yes	Yes
Grinding	Moderate	Coarse	Yes	Yes	Possible	No	Yes	No	23
Woodworking	Concentration*	Particle Sizes**	Cyclones	Cartridge  Collectors	Electrostatic Precipitators	Trion DCU	Media Unit***	Portable Dust	32
Woodworking Machine	Moderate	Varies	Yes	Yes	No	Possible	Yes	Possible	29
Sanding	Moderate	Fine	Yes	Yes	Possible	Possible	Yes	Possible	30
Waste Conveying, Hog	Heavy	Varies	Yes	Possible	No	No	Possible	No	31
* Light: less than 2gr.ft3; Moderate: 2 to5 gr/ft3; Heavy: more than 5 gr/ft3 **Fine: 50% less than 5 microns; Medium: 50% to 15 microns and larger. *** The DCU, M-Series may be used in some applications with very light loadings and where conditions indicate. Check with factory. Possible = Selected technology may be appropriate. Check with Factory.

Equipment Selection Notes...

1. Dust released from bin filling, conveying, weighing, mixing, pressing, forming. Refractory products, dry pan, and screening operations more severe.

2. Operations found in vitreous enameling, wall and floor tile, pottery.

3. Grinding Wheel or abrasive cut-off operation. Dust is abrasive.

4. Operations include conveying, elevating, mixing, screening, weighing, packaging. Category covers so many different materials that recommendation will vary widely.

5. Cyclones often act as primary collectors followed by cartridge units.

6. Cyclones used as product collector followed by cartridge unit for high overall collection efficiency.

7. Conveying, screening, crushing, unloading.

8. Remote from other dust producing points. Separate collector usually.

9. Heavy loading suggests final high efficiency collector for all except very remote locations.

10. Dry transfer points only.

11. Concentration very heavy at start of cycle.

12. Heaviest load from airless blasting due to higher cleaning speed. Abrasive shattering greater with sand than with grit or shot. Amounts removed greater with sand castings, less with forging scale removal, less when welding scale is removed.

13. Operations such as car unloading, conveying, weighing, storing.

14. Operations include conveyor, cleaning rolls, sifters, purifiers, bins and packaging.

15. Operations include conveyor, bins, hammer mills, mixers, feeders, and baggers.

16. Crushing, screening, conveying involved. Wet ores often introduce water vapor in exhaust air.

17. Salvage value of collected material high. Same equipment used on raw grinding before calcining.

18. Coarse abrasive particles readily removed in primary collector types.

19. Heavy spark producing operations when grinding ferrous metals.

20. Linty particles and sticky buffing compounds can cause filter plugging and fire hazard.

21. Unit collectors extensively used, especially for isolated machine tools. Electrostatic precipitators and oil mist collectors used on wet applications.

22. Dust ranges from chips to fines including graphitic carbon. Chips generally removed by conveyor.

23. Fire hazard from some operations must be considered.

24. Solvents present. Collector bypass to fan required during water wash down of pans.

25. Plastic manufacture allied to chemical industry and vary with operations involved.

26. Operations and collector selection similar to woodworking.

27. Concentration is heavy during feed operation. Carbon black and other fine additions make collection and dust-free disposal difficult.

28. Calendar mills can produce.

29. Bulking material. Collect material storage and bridging from splinters and chips can be a problem.

30. Cyclones not too effective on heavy concentration of fine particles from production sanding. Electrostatic precipitators used for general ambient air cleaning.

31. Cyclone required due to heavy loading.

32. See NFPA publications for fire and explosion hazards, e.g. zirconium, magnesium, aluminum, woodworking, plastic, etc...

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