QUALITY CHANGES, DUST GENERATION, AND COMMINGLING ...

3.2.2.1 Elevator Transfers and Sampling.......................................................................... 83
3.2.2.2 Particle Sizing ....................................................................................................... 84
3.2.2.3 Durability Measurement ....................................................................................... 85
3.2.2.4 Dust Sampling....................................................................................................... 86
3.2.2.5 Data Analyses ....................................................................................................... 86
3.3 Results and Discussion ....................................................................................................... 87
3.3.1 Particle Size Distribution ............................................................................................. 87
3.3.2 Whole and Broken Materials ....................................................................................... 87
3.3.3 Durability Index ........................................................................................................... 89
3.3.4 Dust .............................................................................................................................. 90
3.4 Summary............................................................................................................................. 91
3.5 References........................................................................................................................... 92
CHAPTER 4 - Size Distribution and Rate of Dust Generated During Grain Elevator Handling 95
4.1 Introduction......................................................................................................................... 95
4.2 Materials and Methods........................................................................................................ 98
4.2.1 Test Facility ................................................................................................................. 98
4.2.2 Test Materials and Grain Handling.............................................................................. 98
4.2.2.1 Part 1: Wheat......................................................................................................... 98
4.2.2.2 Part 2: Shelled Corn............................................................................................ 100
4.2.3 Dust Sampling............................................................................................................ 100
4.2.4 Particle Sizing ............................................................................................................ 101
4.2.5 Data Analysis ............................................................................................................. 103
4.3 Results and Discussion ..................................................................................................... 103
4.3.1 Mass Flow Rate.......................................................................................................... 104
4.3.2 Particle Size Distribution and Size Fractions............................................................. 105
4.3.2.1 Wheat – Effect of Grain Lot ............................................................................... 105
4.3.2.2 Shelled Corn – Effect of Repeated Transfers ..................................................... 109
4.3.2.3 Comparison of Wheat and Shelled Corn – Effect of Grain Type....................... 111
4.4 Summary........................................................................................................................... 112
4.5 References......................................................................................................................... 113
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