This document summarizes the Cardox technology provided by ATD Pressure Gas System for removing material build-up and blockages in industrial processes. Cardox uses pressurized carbon dioxide gas to blast away unwanted deposits in a safe and effective manner. It has been used for over 60 years in various industries like steel, cement, pulp and paper. The document explains how the Cardox tubes work and the advantages they provide over alternative methods like reducing downtime and increasing worker safety.

1. ATD Pressure Gas System
Presents:
Cardox Technology for the Steel
Industry.
Safe, Fast and Effective Material
Build-up and slag Removal
Presented by John Stulack

2. ATD Pressure Gas System
has been safely removing
material build–up and
blockages in industrial
processes and bulk storage
for over 60 years.

3. ATD Provides Cardox Technology to over
300 customers in 50 Countries
 Steel Manufacturing
 Pulp and Paper
Industry
 Cement Industry
 Lime Industry
 Waste Industry
 Power Industry
 All Types of Bulk
Storage
 Chemical Industry

4. Applications Examples:
 Pyroprocessing/Calcining – Rotary Kilns – Riser Duct -Preheater –
Chimney/Cassette - Ceiling/Roof - Cyclones – Feed Pipes – Feed
shelf - Transfer Chute – Downcomer – Cooler.
 Incinerators – Combustion Chamber – Duct Work – Grate Cooler.
 Power Industry – Super Heater Tubes – Economizer – Electrostatic
Precipitator – Boiler Ash Hoppers – Lime silos –Flyash silos.
 Steel Industry Iron Ore Pelletizing - Slag Pot Ladles – Coke Battery –
Coal Feeders – Blast Furnace - Uptakes - Dustcatcher
 Bulk storage/ Silos, Feeders and Rail Cars – Coal – Lime -
Gypsum - Finished Cement - Iron Ore - Fly-ash - Raw Meal -
Soda Ash – DDG - Bone Meal - Grain etc.

5. How Does a Cardox Tube Work?
The Cardox Tube is loaded with a chemical Pressure Gas
Generator and is then sealed with the Tube Head. The
Discharge side of the tube is loaded with a Copper Washer
and Shear Disc, followed by the operator’s choice of
Discharge Head. After the tube is loaded it is then filled
with liquid CO2.

6. Loading the Tube with
Generator, Copper Washer and
Shear disc. This takes about
two minutes with our Loading
Table.
Filling The Tube with liquid CO₂.
This takes about 30 seconds
with our Wall-mount Filling
Station.
Loading & Filling Equipment

7. Three Main Components out in the field
Gripcase
Cardox Tube
The Base Socket is installed on
the outside of the vessel wall in
the location where the internal
material build-up is to be
removed.
The Gripcase safely holds the
tube in place while it is
activated.
The Cardox Tube removes the unwanted build-up with a high pressure
blast of inert gaseous C0₂.
Base
Socket

8. When the Tube is Activated
The operator detonates the Tube from a safe predetermined location. When
detonated, the Chemical Generator creates heat, converting the liquid CO2 to
Gaseous CO2 in 20 milliseconds. It expands at over 500 times its original volume and
the gas ruptures the shear disc at 37,000 psi, producing traverse forces up to 15
tons. The CO2 discharge is deflected by the Discharge Head (type depending on
application) removing the build-up from the refractory/vessel wall.

9. Remove Material Build-up While On Line
Iron Ore Pelletizing Grate Kiln
Larry Car
DowncomerBlast Furnace Chokes
Build-up in Preheat
Coal Feeders/SilosSlag Pot Deskulling
Dustcatcher

10. ATD-Pressure Gas System – Because
experience matters. We are your Cardox
experts! “We were experiencing funnel flow (vs. mass flow)
which leads to rat-holes putting the site at
operational risk. We originally brought in a firm,
that will remain nameless to clear the rat-hole in
an alternate way than yours. This was costly,
ineffective, and frankly I believe that firm was
milking the job. When we contacted John Stulack
he responded to our needs quickly and
professionally with his mind on safety. His use of
the Cardox System has kept the coal flowing in our
silos and has relieved a great deal of stress for the
people working in this power plant, not the least
of which is mine. John is experienced, courteous
and direct which is refreshing. He has helped us
numerous times and without his dedication I have
no doubt we would have process interruptions.” –
Utilities Manager from Pennsylvania Pulp and
Paper Industry

11. Deskulling Slag Pots Ladles
Removing Slag from Slag Pot ladles can be very time
consuming and expensive. Other methods are dangerous
and create undo stress that can often damage the ladle. A
single shot from an ATD-Pressure Gas Tube can remove the
skull safely without damaging the ladle. This is accomplished
at a fraction of the cost of the use of heavy machinery.

12. Iron Ore Pelletizing:
Remove Build-up in the
Grate Kiln Pre-heat while
on line!
Blast Furnace:
Remove Build-up in the
Uptake, Dustcatcher and
Downcomers

13. Keep Your Coal and Bulk Materials Flowing
Frozen coal plugs can shutdown your Coke Battery or coal silos. A
targeted Pressure Gas Tube blast of inert gaseous CO₂ dislodges
residual material, plugs and bridges safely and quickly.
LOAD IT UP LOCK IT IN
BLOW IT AWAY!

14.  All Types of Bulk
Storage:
 -Cement
 – Lime
 – Coal
 – Iron Ore
 – Fly Ash
 – Soda Ash
 – Gypsum
 – DDG
 – Bone Meal
 – Grain
 - Wood Chips
Keep Your Silos Flowing with ATD Cardox

15. Pressure Gas Tubes (Cardox) In Action

16. Basic Procedure
Remove Locking Plate from Base Socket and insert the Drill Guide.

17. Basic Procedure
A Bore is created in the material build-up with a Rock Drill or bar.
Softer materials may not require any drilling.

18. Basic Procedure
The loaded Cardox Tube is inserted into the Base Socket at a
predetermined depth and locked in place with the Grip Case.
The detonating wires are now connected.

19. Basic Procedure
The tube is safely activated remotely.

20. How do we protect the refractory and Vessel
Wall?
Our ATD Pressure Gas system is
specifically designed to insure there is no
damage to the refractory or vessel wall
while targeting the buildup.
ATD also offers custom Discharge Tubes
that insure the operator inserts the tube
at the correct depth. Our specialized
Discharge Tubes come in a variety of
types for your specific application. Heat
resistant Tubes and Straight Shot type are
also now available!

21. Advantages using Cardox Technology
Safety! Material Build-up is removed from the outside of
the vessel. The operator is in a safe area when the Cardox
Tube is activated.
Cardox is safe to use in nearly every process and material as the
discharge is inert gaseous CO₂.
The system is specifically designed to insure there is no
damage to the refractory or vessel wall while targeting
the unwanted buildup.
Down time is drastically reduced. Removal of deposits in
most applications is achieved in just minutes. Ring
removal in kilns averages between 2 – 6 hours with as
little as 4 operators.
Using Cardox Technology proactively prevents the ring or Build-
up from becoming problematic.

22. Removing Kiln Rings/Build-up WITHOUT
Cardox
• 24 Hour Cool Down
Time
• Confined Space
Permits
• Workers are
Subjected to
Dangerous
Conditions
• 24 Hours Heat Up
Time
• Loss of Production

23. Thank you for your time!
Please contact us for any questions or additional
information. We specialize in providing solutions
for your specific application.
John C Stulack john.stulack@atd-pgs.com (843-830-8488)