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Industry is constantly moving towards reducing and where possible eliminating the need for confined space entry into tanks and health and safety legislation is driving this change. All efforts must now be made to avoid confined space entry and if possible eliminate the requirement for it:

HSA Code of Practise for Working in Confined Spaces

Employers, self-employed or others in control to any extent of a work activity must take account of the inherently higher risk to safety and health which entry into a confined space entails while planning that work activity. All methods of carrying out the work which enable the purpose to be achieved without the need to enter the confined space should be considered. The measures which avoid the need for entry, might involve changing work practices or equipment, or dismantling a structure prior to entry.

 

If an alternative method of carrying out work is reasonably practicable and if it entails a lower overall risk to safety and health, it must be used. In order to ensure that entirely new hazards are not introduced or other risks increased, those in control must consider carefully the full impact of any proposals and weigh up the pros and cons of the various options.

 

Where entry into a confined space for certain work is required on a periodic basis the frequency of entry should be minimised as far as practicable. Examples of modified working practices that prevent the need for entry include:

 

  • Sampling the atmosphere or contents of confined spaces from outside using long tools and probes, etc.
  • Cleaning a confined space, or removing residues from it, from the outside using water jetting, steam or chemical cleaning, long- handled tools, or in-place cleaning systems.

Challenge:

How does industry comply with current legislation by reducing and where possible eliminating man entry into tanks and vessels while also maintaining the quality of cleanliness required for their process.

Solution:

Fleury Engineering has identified the need to address the changing environment by adopting innovative engineering solutions to the confined space entry problem. We can now reduce or even eliminate the need for confined space entry for manual tank cleaning by incorporating automated tank cleaning devices into the process. Drop the device into the tank or enclosed space – not people.

Automated tank cleaning devices ensure a safe, effective clean that produces excellent results – every time. Not only that, they are proven to reduce time spent cleaning by as much as 80%.

The 360° automated tank cleaning rotating head system

Non-Confined Space Entry Tank Cleaning System Image Fleury EngineeringNon-Confined Space Entry Tank Cleaning Demo Fleury Engineering

User Benefits

  • Elimination Of Confined Space Entry
  • High Jet-Stream Impact
  • Reduced Cleaning Times
  • Reduced Effluent Generation
  • Reduced Energy Costs
  • Improved Capital Equipment Utilization
Non-Confined Space Entry Tank Cleaning System Fleury EngineeringThis Tank Cleaning System creates a pattern matrix similar to a ball of twine. A complete pattern is established when 65 axial revolutions of the body have been completed.

The tank cleaning robot

Non-Confined Space Entry Tank Cleaning Robot Fleury Engineering

The tank cleaning robot is a mobile tank-cleaning head for horizontally installed tanks. Thanks to its folding and adjustable arm, the robot can be used in tanks with diameters of 1 up to 3 meters. When folded, the machine fits through a manhole of 500mm or larger.

The machine is driven by water hydraulic pressure giving the robot excellent power and an easily adjustable running speed. The constant driving speed in combination with the small distance between the nozzle and the wall ensure minimal water consumption.

Due to the four wheel drive system the robot unit is able to climb over stiffness rings of approx. 10cm.

Conclusion:

It is now possible to clean tanks without needing to send people into the tanks and putting lives at risk.

The use of innovative engineering solutions reduce and in most cases eliminate the requirement of man entry into tanks.