2
PENBERTHY
MODEL GSA ANOLODER FOR AN-FO (AMMONIUM NITRATE - FUEL OIL) BLASTING
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
2 INTRODUCTION
Penberthy model GSA is a portable jet loader
used in AN-FO blasting. The anoloder uses a
high pressure air stream to educt powder into
a discharge flow stream. The powder exits
the nozzle at a high velocity and density to fill
predrilled holes.
1 ABOUT THE MANUAL
This manual has been prepared as an aid and
guide for personnel involved in installation or
maintenance. All instructions must be read and
understood thoroughly before attempting any
installation, operation or maintenance.
Emerson does not have any control over the
manner in which its anoloder is handled,
installed or used. Emerson cannot and will not
guarantee that the anoloder is suitable for or
compatible with the user's specific application.
WARNING
The anoloder handles prilled ammonium nitrate/
fuel oil mixtures at high pressures. If proper
procedures are not followed, the operator could
experience a sudden blast of high pressure dust.
The operator should wear protective clothing and
safety glasses before attempting to operate or
perform maintenance on the anoloder. Failure
to do so can result in severe personal injury and
property damage.
2.1 System description
The Penberthy anoloder consists of five basic
components. Use the exploded parts view in
Section 9 as additional reference material.
Ejector
- aluminum ejector uses the high
pressure air to create a pressure differential.
When activated by the remote control valve, the
air stream pulls the powder from the container
and blows it into predrilled holes.
Canister
- plastic canister contains the prilled
powder and acts as a hopper to direct the
powder flow to the ejector. The canister has
a stainless steel fluidizing screen to deter
bridging of the powder as it nears the suction
port of the ejector. Aluminum legs are bolted to
the canister to make it sturdy on level ground.
Remote control hose/valve
- aluminum valve
allows the operator to control the operating
air pressure by pulling the handle. The handle
activates the air flow stream by bleeding a portion
of the air flow which allows an internal piston to
move and open the air orifice in the ejector.
Loading hose
- static-resistant plastic hose
directs the air and powder mixture into the
drilled hole.
Carrying strap
- canvas strap makes the
anoloder portable. The anoloder is light enough
that most operators can carry the units to
various work and powder loading areas.
2.2 Assembly
Attach the control hose to the ejector body by
screwing-in the male NPT connection on the
end of the air valve control assembly. Attach
the black loading hose to the outlet of the
ejector diffuser using the hose clamp supplied.
Emerson recommends attaching a band of
adhesive tape near the end of the loading hose
to indicate to the operator that the end of the
hose has been reached and the drilled hole is
nearly full.
Attach the air hose to the 1" NPT ejector inlet.
An adapter fitting (not supplied) for air supply
hose connection must be screwed into the
1" NPT connection. A lobe on the body of the
ejector near the loading house provides a place
to earth ground the ejector using a nut, bolt and
grounding strip (strip not included).
WARNING
Air placement of AN-FO mixtures can result in
a hazard due to generation of static electricity.
The 'conductive' type loading hose supplied with
the model GSA anoloder in conjunction with
grounding strips will generally dissipate the static
charges as they are generated. To ensure safe
operation applicable codes and mining regulations
must be followed without exception. Neglecting to
compensate for potential static electricity buildup
could result in an unexpected explosion, resulting
in severe personal injury and property damage.
3 AVAILABLE MODELS
All anoloder models have a 1" female NPT air
line connection to the ejector. The loading hose
is available in a standard 25ft length or 100 ft
length. Penberthy anoloders are available in
three different sizes. The model size determines
the loading hose size. The GSA ⅝" has a ⅝"
diameter hose. The GSA ¾" has a ¾" diameter
hose. The GSA 1" has a 1" diameter hose.
3.1 Maximum design pressure ratings at operating temperature ranges
TABLE 1
Part description
Material
Maximum temperature
Maximum pressure
Body
Aluminum
225°F [107°C]
110 psig [760 kPaG]
Loading hose
Conductive PVC
140°F [ 60°C]
120 psig [830 kPaG]
