Regeneration of dust extraction channels from a cement plant – durability despite extreme conditions
Extraction channels in cement plants operate daily under extreme conditions: intense hot cement dust, high temperatures, and continuous mechanical stress. It's no wonder their linings wear out and get damaged over time. Fortunately, there's an effective solution – Regeneration of extraction channels, which restores them to full functionality, extending their lifespan by years.
Why do cement plant channels require regeneration?
Extraction channels in cement factories are constantly exposed to:
hot, abrasive cement dust,
varying temperatures, often very high,
aggressive chemical and mechanical conditions.
Under such conditions, even the most durable materials are subject to wear and tear. Rather than replacing the entire system, it is far more cost-effective to Duct lining regeneration – a precise, fast and cost-effective process.
The sewer repair process – from dismantling to reassembly
At NWP-TECH, we carried out a comprehensive refurbishment of the exhaust ducts supplied by the cement works. Here are the stages of the work:
Cutting out and welding in new sheets
The first step was removal of damaged hull fragments. We then carried out precision cutting of sheets, which have been welded into place at the points of wear. We used a welding method that ensures durability and a tight seal, and is resistant to high temperatures and dust.
Sanding of undamaged components
The sheets that did not require replacement were thoroughly cleaned and ground using flap discs. This ensures the entire unit is prepared for final painting, without the risk of corrosion spots forming.
Spray painting with specialist Tikkurila paint
Finally, the channels were coated with industrial paint from Tikkurila – a heat-resistant compound that cures when exposed to heat. This ensures that the components are resistant to further exposure to temperature and dust, and that the protective layer retains its properties over a long period of time.
Fun fact: The heat-resistant paint used in this project increases the coating's hardness in direct proportion to the operating temperature – this is an excellent solution for the cement industry.
Refurbishment of machinery and equipment. Reverse engineering
Regeneration results – sewers ready for many more years of service
Thanks to our technology, the channels have been restored to the customer fully functional and secured for further operation. The refurbishment avoided the costly replacement of the entire system, and the investment will quickly pay for itself thanks to extended service life and increased wear resistance.
- Experience of working with large-scale industrial installations
Highly skilled welders and machine operators
Professional spray painting using industrial paints
Fast turnaround times
Projects throughout Poland, including on-site at the client’s premises
Do you need technical support? Contact us!
If your company uses machinery that can no longer be serviced or for which documentation is missing, reverse engineering may be the ideal solution. NWP-TECH restores equipment to working order and modernises it in line with current industry standards.