(PAES 419:2015) WAREHOUSE FOR BAG TYPE STORAGE OF GRAINS Flashcards
In this type, six blocks are formed to make standard stack of 9.14m x 6m size. Each block is
of the size 6m x 1.5m. In the block, one layer is put lengthwise and other breath-wise.
Block stacking
Bagged grains with 14% moisture content or lower could be piled in Chinese method. Sacks
are piled side by side and one on top of the other for appropriate pest control measures
Chinese method
Bagged grains with moisture content 14.1% to 15% are to be piled in this method. This
system of stacking provides ventilation space between bags and allows circulation of
convective air currents that provide a medium for heat dissipation
Japanese method
In this type bags are laid in complete length-wise or breath-wise tiers in alternate layers
systematically
Criss-cross stacking
The height of stacks shall not exceed the height of the walls and a space of at
least __ shall be allowed between the tops of the stacks and roof frames.
1 m
Sacks made of woven polypropylene have a tendency to slide on each other,
and therefore shall not be stacked more than __ high.
3m
Jute sacks bind together better, and
maybe stacked up to __ above the floor
6 m
Recommended stack heights in layers for wheat, barley and corn
18
Maximum stack height inlayers for paddy
16
Maximum stack height inlayers for rice
16
Recommended stack heights for wheat,barley, and corn
4.57m
Recommended stack heights for paddy
6m
Recommended stack heights for rice
5.5m
Number of bags for paddy
10
Number of bags for rice
15
Number of bags for corn
12
A central pathway should be __ wide or not less than ___ wider than the
width of the widest forklift trucks that are being used simultaneously during warehouse
operation.
2 m, 1m
Space between piles shall be __ wide.
1m
Warehouse dimensions for 10,000bags
10mx30m
Warehouse dimensions for 30,000bags
16mx48m
Warehouse dimensions for 50,000bags
20mx60m
Warehouse dimensions for 100,000bags
25mx78m
Warehouse dimensions for 500,000bags
75mx142m
The recommended height between the eaves line and the floor is __ and __ between the
eaves line and the apex.
7 m,2.5 m
A standard roof truss of __ span
(or larger) should be used
14.5m
If there is a forklift or mechanical handling equipment to be used, the central
pathway should be designed with a width of not less than ___ wider than the width of the
widest vehicle loaded.
0.6m
The long axes of the warehouses should be oriented __ or sited across the
prevailing wind.
East-West
wooden or plastic (food grade) frames used on concrete floors for stacking bags to prevent
direct contact between the grains and the floor
dunnage
pallet
“tarima”
process of using chemicals to control insects in grains in a form of fumes
fumigation
moving of air through stored grains at low airflow rates between 0.05 – 2.28 cubic meter per
minute per ton for purposes other than drying, to maintain or improve its quality
aeration
