Fixed rate mixing system for the blending of ammonium nitrate prill and fuel oil.


The system will also accommodate the addition of an additive into the blend.  The system is electrically driven and the rates are manually controlled.


Base Components:  

1. Dump Hopper 280.3171
 The dump hopper is filled from a bulk bag and provides a supply of AN to the mixing auger. 

1.25 metric tonne (2,750 lbs.) capacity
SS material for all contact surfaces 
Grating to prevent entry into auger
 
2. Mixing Auger 280.3172
 The mixing auger conveys the AN from the dump hopper and allows the addition and mixing of fuel oil and an additive. This system has two delivery settings that can be changed by reversing the drive system sheaves. This allows the mixing to be matched to the man power available for bagging

SS material for all contact surfaces 
4.72 m (15.5 ft.) length 
5 HP / 3 PH / 60 Hz motor reduced to 175 RPM 
Approximate rate of 275 kg/min (600 lb/min) – high 
Approximate rate of 140 kg/min (300 lb/min) - low 
These rates are reduced by factor of .83 when supply voltage is 50 Hz.

The rates shown here must be used only as a guide. Actual through put is dependent on the specific gravity of the products and other factors outside of the scope of this proposal.
 
3. Fuel Oil System
280.2460
 The fuel oil system pumps a metered flow of fuel oil to the mixing auger where it is mixed with AN.

Viking fuel oil pump 
2 HP / 3 PH / 60 Hz electric motor drive 
Mounting base, couplings, coupling guard included 
Adjustable by-pass flow control 
Rate totalizer for fuel oil consumption
 
4. Electric Control System 280.3177
 The electrical control system provides automatic start-stop control of the mixer according to the level of ANFO in the bagging hopper and AN in the dump hopper.  Selector switches allow manual or automatic operation of the mixing auger, fuel oil pump and additive feeder, either individually or as a group.

Scalable digital electronic totalizers to monitor AN, fuel oil and additive usage
24 volt DC power supply for control voltage
Emergency Stop switch with a master control relay
Nema 4X dust tight / water tight electrical system
 

 Optional Items:  

5. Additive System 280.3174
 The additive system meters dry bulk additive to the mixing auger where it is mixed with ANFO.

Hopper capacity of .3 m^3 (10.6 ft^3) 
SS materials for hopper contact surfaces 
SS metering screw and housing 
1 HP / 3 PH / variable speed manually adjustable drive 
Grating to prevent entry into auger 
Hinged hopper lid
 
6. Access Platform 280.3175
 Provides working platform and steps to access both AN dump hopper and additive feeder during manual loading.

Working platform and steps constructed of self-cleaning grating 
Handrail for operator safety during operation.
 
7. Bagging Hopper 280.3176
 Overhead surge hopper for mixed product.  Provides output flange for mounting the bagging scale.

569 kg. (1250 lb.) capacity 
SS material for all contact surfaces
 
8. Bagging Scale 280.3178
 Meters bulk mixed material at preset quantities into customer bags.

JEM International model GB-32
Mechanical gross weight scale
SS material of construction
Kg. or lb. Weightments (must specify)
Adjustable flow control
5 digit re-settable bag counter
 
9. Bag Closing System 280.3179
 Fischbein Model 400 bag closing

Model 100 sewing head (2.5 stitches/in.) 
Adjustable height pedestal 
8 ft. flat conveyor with casters model HDB0812 
Power in-feed 
Photoelectric system actuator 
Air thread pusher 
Nema 12 dust tight electronics   
Available in 220, 380, 440, 575 voltages (must specify)
 
10. Combination Motor Starters
280.3180**
 Type S combination motor starters that provide motor overload and short circuit protection. 

Nema 4X watertight and dust tight SS enclosure
 
**NOTE:       Required 1 each for item 2 – 280.3172  T-1 Mixing Auger
                        Required 1 each for item 3 – 280.2460  Bulk Oiling Module
                        Required 1 each for item 5 – 280.3174  T-1 Additive Feeder
                        (Starters may be purchased locally)

 ***When ordering, please specify voltage, phase and cycle of electrical supply.*** 
 

Options for loading dimensional bags  

 11. Auger Packer
241.1900
Amerind Model CPHD7.5E 
Specifications:     All normal product contact surfaces are fabricated from Type 304 stainless steel.  The unit includes a V shaped 9 cu ft receiving hopper with interior agitating arm, top safety screen (expanded metal mild steel), and a small electric vibrator on the hopper with rheostat control.  The drive motor is 7.5 HP TEFC, 220/440, 3 phase, pre-wired through a NEMA 12 control panel.  Three explosion proof micro switches mounted on the rail frame of the packer provide the logic to give automatic operation.  The packer includes an air cylinder to control density and this circuit includes a line lubricator and filter.  The complete unit is on castors and the drive mechanism, sheaves, belts, air clutch are protected by an open guard.
 
12. Packer tubes
 Included in this price one set of packing tube and auger assembly for stated package sizes:

241.2005  2” auger (2-3/8” tube) to pack 3”, 3-½” product
241.2006  3” auger (3-1/2” tube) to pack  4”,   4-1/2” product
241.2007 4” auger (4-1/2” tube) to pack 5”, 5-1/2, 6” product
 
13. Diverter*
285.0160
 Tread two-way diverter
*must be selected for multiple package machines are selected

This is a stainless steel diverter that allows ANFO to be diverted from one package system to another.
 
14. Bin level selector switch 285.0160
 This system also includes an electrical control console allowing the operator to switch the source of the bin level controls between the two machines. This option must be selected if the auger packer is selected.
 
15. Dimensional Bag Closing System
241.3500
 Tipper Tie Model #T1101V Champion Series Clipper

Closing System

This device is used to close the dimensional bags that are packaged by the auger packer.

 The device is mounted on a stand manufactured of stainless steel.