Tank cleaning for automatic system for manless syatem

1. Automated Tank
Cleaning…
Myth or Fact?

3. Non-Automated Tank Cleaning
• Manual Cleaning
– Worker safety issues
– Time (is money)
– Repeatability
• Fill & Drain
– Large volumes of water/cleaning solution
– Sometimes must be heated
– Slow
– Repeatability

4. • Fully Automated CIP
– Completely automated system
– Multiple cycles
– Spray nozzle or tank cleaning
device
• Portable Systems
– Simple components
• Pump /fluid delivery system
• Spray nozzle or tank cleaning
device
– Mobile
Automated Tank Cleaning

5. “My tanks are too big (or too small)
for an automated solution”
Myth or Fact?

6. Tanks of All Sizes Can Be
Automatically Cleaned

7. Selecting the Right Equipment
Automated Units for Cleaning Tanks with Dia.
Ranging from 2’ to 100’ are Available
High-Impact Tank Cleaners
for Tanks Up to 100’ in Dia.
Medium-Impact Tank
Cleaners for Tanks Up to
60’ in Dia.
Low-Impact Tank Cleaners &
Nozzles for Tanks Up to 25’
in Dia.
Tank Cleaning Nozzles for Rinsing
Tanks with Dia. From 2’ to 16’

8. “My tanks are too big (or too small)
for an automated solution”
Myth or Fact?

9. “Automated cleaning
won’t really get my tanks clean”
Myth or Fact?

10. • Important Selection Criteria
– Correct throw distance
– Proper impact
– Lowest possible flow
– Right spray pattern
– Complete coverage
of desired surfaces
• Repeatability
Proper Specification Ensures Effective
Cleaning

11. TankJet AA190 Video
• AA190 video

12. “Automated cleaning
won’t really get my tanks clean” “
Myth or Fact?

13. “I can’t automate due
to obstructions in my tank”
Myth or Fact?

14. Preventing “Shadowing”
• Account for Internal Obstructions
– Carefully select position
– Consider multiple units
– Use deflected sprays
• Other manageable restrictions
– Size or location of access ports
– Unusual tank shape
– Extremely tall or long tanks

15. “I can’t automate due
to obstructions in my tank”
Myth or Fact?

16. “I’ll still need hot water to remove
residue even with an automated
tank cleaner”
Myth or Fact?

17. Balancing the Factors Affecting
Cleaning Effectiveness

18. • Decreases the bond between
soil and surface
• Decreases soil viscosity
• Increases soil solubility
• Increases chemical reaction
rate (may allow for shorter
cycle time)
High Temperature

19. • Duration that cleaning solution is
in contact with equipment surface
• Factors that influence duration
– Chemical concentration – correct
type of cleaner for soil removal
– Impact force
• Water pressure
• Flow rate
• Nozzle selection
– Temperature - to maximize reaction
rate of cleaning solution
Cleaning Time

20. • Varies based on chemical selected,
type of soil and surface to be
cleaned
• Concentration normally reduced as
time and temperature increase
• Lower concentration means less
chemical is used and cost is reduced
Chemical Concentration

21. • Increasing spray impact
may allow decreases in
– Temperature
– Chemical concentration
– Time
• Double spray impact force
by:
– Doubling liquid flow rate
– Quadrupling liquid pressure
• Increasing impact instead of temperature can save thousands
by decreasing energy costs
Spray Impact – An Alternative to High
Temperatures

22. “I’ll still need hot water to remove
residue even with an automated
tank cleaner”
Myth or Fact?

23. “The residue in my tank is prone
to sparking so automation is out
of the question”
Myth or Fact?

24. Tank Cleaning in Explosive Environments
• Read the owners manual
• Be sure the unit is grounded
• Use chemicals compatible with the
unit’s materials of construction
• Use explosion-proof motors

25. “The residue in my tank is prone
to sparking so automation is out
of the question”
Myth or Fact?

26. “I won’t be able to verify that
my tanks are completely clean”
Myth or Fact?

27. • Acoustic sensors can be installed on
tank exterior to detect
– Rotation failure
– Changes in rotation frequency
– Changes in spray pressure
– Clogged nozzles
• Audible / visual alarms notify
operators when change detected
• Swab tests also possible
Monitoring Devices Verify Cleaning

28. “I won’t be able to verify that
my tanks are completely clean”
Myth or Fact?

29. “The payback on automated
tank cleaning is too long”
Myth or Fact?

30. $ Water + energy to heat water
$ Chemicals
$ Labor
$ Disposal
$ Lost Production Time
$ Re-cleaning Tanks
$ Scrap Product
= True cost
The true cost of manual or fill
and drain methods

31. The Payback for Automated
Tank Cleaning
• Cleaner tank
• Shorter cycle time
• Lower energy costs
• Reduced chemical usage
• Lower labor costs
• Improved worker safety

32. Payback Example – Chemical Processor
• Situation
– 3200 gallon reactors needed cleaning after every
batch
– CIP system failed to clean effectively at 1000 psi
– Manual cleaning was required after automated
cleaning to ensure cleaning
– This combination was expensive, time consuming
and dangerous

33. • Solution
– High pressure rotary tank cleaning
nozzle used, operating at 1800 psi
– Pneumatic insertion/
retractable device eliminated
any need for personnel to enter
tank
• Result
– Cleaning time reduced from 2 hrs to 10 min
– Additional production time paid for equipment in
just a few months
Payback Example – Chemical Processor

34. “The payback on automated
tank cleaning is too long”
Myth or Fact?

35. I can’t automate because…
• My tanks are too big (or small)

36. I can’t automate because…
• My tanks are too big (or small)
• My tanks won’t get clean

37. I can’t automate because…
• My tanks are too big (or small)
• My tanks won’t get clean
• I’ve got obstructions in my tank

38. I can’t automate because…
• My tanks are too big (or small)
• My tanks won’t get clean
• I’ve got obstructions in my tank
• I’ll still need hot water to remove residue

39. I can’t automate because…
• My tanks are too big (or small)
• My tanks won’t get clean
• I’ve got obstructions in my tank
• I’ll still need hot water to remove residue
• The residue in my tank is prone to sparking

40. I can’t automate because…
• My tanks are too big (or small)
• My tanks won’t get clean
• I’ve got obstructions in my tank
• I’ll still need hot water to remove residue
• The residue in my tank is prone to sparking
• I won’t be able to verify my tanks are clean

41. I can’t automate because…
• My tanks are too big (or small)
• My tanks won’t get clean
• I’ve got obstructions in my tank
• I’ll still need hot water to remove residue
• The residue in my tank is prone to sparking
• I won’t be able to verify my tanks are clean
• The payback is too long

42. I can’t automate because…
• My tanks are too big (or small)
• My tanks won’t get clean
• I’ve got obstructions in my tank
• I’ll still need hot water to remove residue
• The residue in my tank is prone to sparking
• I won’t be able to verify my tanks are clean
• The payback is too long
FINAL SCORE: 6 “myths”, 1 “maybe”

43. Questions?