Upgrading of an existing Electrostatic Precipitator - 1-2-3 solution
The 1-2-3 concept is special developed for upgrading within the paper industry but can of course be used within different industries. Upgrading can be carried out in approximate 12-20 days boiler stop time.
The below example shows upgrading of an electrostatic precipitator with concrete casing. The precipitator is placed on the top of a boiler building. The 1-2-3 concept can also be employed for precipitator with steel casing. Economic advantages
- low investment
- short operation stop - when coupling up
Technical advantage
- low emission values
- prolongation of the life of the precipitator
- utilisation of existing filter chamber
Increased efficiency
- better accessibility
- reduced maintenance cost
- complete central operation/supervision
Step 1
Rack for pre-erection of of internals to be placed close to ESP.
Pre-erection of all internals, roof, insulator chambers, T/R sets etc. A large benefit is that the excisting ESP can still be in use during this phase.


Step 2
Preparation of excisting ESP, cutting off roof (steel or concrete), removal of old internals. New re-enforcement frame placed on top of excisting ESP.


Step 3
Pre-erected internals lifted in place in prepared excisting ESP casing. Finalizing of mechanical and electrical parts. Now the ESP is ready for operation. All completed with only 12 to 20 days boiler stop.

