Grain Systems Tanks PNEG-1095 - Manual (Page 64)

6. Installation
64 PNEG-1095 FCDL 4.00" Corrugation Externally Stiffened Grain Bin
Sidedraw Systems
Installation and Management of Sidedraw Systems in FCDL Series
Bins/Silos
The company designs and manufacturers bins to the highest standards, however proper installation and
good usage practices for a commercial flume system are essential, regardless of manufacturer. The
following practices address general usage and installation criteria for such systems.
Sidedraw Installation
1. Side discharge is only permitted in stiffened
bins when a sidedraw flume system
manufactured by a bin company has been
installed. No corrugated steel bin should be
unloaded through the sidewall without
installation of such a system and permission of
the manufacturer.
2. Installation of a flume system may require the
installation of additional wind rings and does
require 3/4" diameter anchor bolts for the
entire tank.
(Refer Page 65.) Installation of
multiple systems requires additional wind rings
and must be placed a minimum of 90° apart.
Installation of multiple systems requires
approval of the engineering department.
3. A sidedraw should not be the only discharge
system available. A standard center discharge
and conveyor should be installed.
Sidedraw Management and Usage
1. Sidedraw systems are intended for use with
dry flowable grain. Sidedraws are not to be
used for poorly flowing products. This is not
unique to our bin and flume systems but is a
general rule for such systems.
2. In multiple system installations, only one
sidedraw may be used at any one time.
3. Filling should not be occurring at the same
time as grain is being withdrawn through the
sidedraw flume system.
4. Prolonged storage of grain in the sloped
condition produced by sidedraw discharge
may accelerate differential settlement and
result in deformations of the bin/silo. After
using the sidedraw system, the sloped grain
should be returned to a near level condition by
use of the center discharge. Leveling of the
grain should also allow more even
consolidation of foundation and fill soils and
produce more even settlement of the bin/silo.
5. If geotechnical investigations or past
experience indicate significant foundation
level soil variations or a site propensity toward
differential settlement, sidedraw usage may
be prohibited or severely restricted. In this
situation, the use of a flume system should be
reviewed with geotechnical consultants or the
foundation engineer.