Industrial Services

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Sandjet® cleaning (for pipelines and furnaces)

DRY, INERT, FAST
A fast and safe cleaning solution under dry and inert conditions, Sandjet® and Mini Sandjet® provide smoother, cleaner surfaces for better heat transfer and longer lifetime. We offer an extremely fast, environmentally friendly solution without the use of water or chemicals.

For systems where the use of water for cleaning tubes is prohibited or limited to a minimum, (Mini)Sandjet® cleaning is a safe, fast and effective option. The technique is based on a cleaning agent, shot or grit that is injected with high velocity dry nitrogen or air through the furnace tubes or pipeline system. Sandjetting is the best cleaning solution for VCM furnaces, oxygen pipelines and heat exchangers.

ADVANTAGES
- Fast cleaning
- No (polluted) water
- No chemicals
- Environmentally friendly
- Dry conditions
- Inert when using nitrogen
- Contaminants are removed
- More effective than High Pressure cleaning
- Cleaning results up to SA 2

APPLIED SOLUTION
For A.Hak Industrial Services, work begins well before the cleaning starts. Our specialists use the system drawings and a model to determine optimal cleaning parameters and timeframe.

Sandjet® is suitable for larger diameter (≥2 1/2") systems such as furnaces and pipelines.

During cleaning, nitrogen or air is pumped into the (Mini) Sandjet® unit at a predetermined flow rate. The correct amount of cleaning agent is then added to the gas stream. This turbulent mix is injected into the piping system for cleaning and polishing. The outlet of the pipeline is connected to a filter unit for separation of deposits and the propellant gas. The nitrogen or air is released into the atmosphere and all waste removed from the system is collected and stored into drums.

SANDJET ®
In process installations such as VCM plants, the use of water is usually prohibited or limited to a minimum as it will form unwanted hydrochloric acid, corroding the system. Specifically in areas like furnaces, where there is a continual build-up of cokes, a dry cleaning method needs to be used. The Sandjet® method was developed as a suitable solution for cleaning hard cokes from inside furnace tubes while using high velocity dry nitrogen and a cleaning agent. The result is a clean furnace with a smooth surface to safely start production without the risk of water inside the process system.
Contact

A.Hak Industrial Services B.V.
Plesmanstraat 26
7903 BE Hoogeveen
The Netherlands
T +31 (0)528 225 300
industrial@a-hak-is.com

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