Abstract:
The invention relates to a method for collecting fine particles from flue gases onto selected collector surfaces, in which method flue gases (PK) containing fine particles (H) exiting the combustion chamber are led to a selected chamber (20) delimited by walls (200), which is part of the flow channel of the flue gas, with the aid of a corona discharge of a high-voltage corona electrode (303) of an ion source (100), gas ions (IK) are created in a separate body (110), the gas ions (IK) formed are led to the chamber (20) and mixed with the flue gases (PK), in order to charge- the fine particles (H) with the- aid of the gasions (IK), and the charged fine particles (VH) are collected on the collector surfaces (KP), the said separate body (110) is an electrically passive part of- the ion source (100), a counter potential to the corona electrode (303) is formed as is a collector surface (KP) for the charged particles (VH) from the walls (200), of the said selected chamber (20). The invention also relates to. a corresponding device and arrangement for collecting fine particles from flue gas.
Abstract:
A method for collecting fine particles from flue gases onto selected collector surfaces includes leading the flue gases from a combustion chamber to a selected chamber that is part of a flow channel of the flue gasses. The selected channel is delimited by walls presenting the selected collector surfaces. Gas ions are formed with aid of a corona discharge of an ion source inside the selected chamber. The ion source includes a separate body relative to the selected chamber that is electrically passive and contains a corona electrode maintained at a high-voltage relative to the collector surfaces. The selected collector surfaces form a counter potential to the high voltage of the corona electrode. The gas ions are led to the selected chamber and mixed with the flue gases to charge the fine particles in the flue gas which are collected on the selected collector surfaces.
Abstract:
The invention relates to a method for collecting fine particles from flue gases onto selected collector surfaces, in which method flue gases (PK) containing fine particles (H) exiting the combustion chamber are led to a selected chamber (20) delimited by walls (200), which is part of the flow channel of the flue gas, with the aid of a corona discharge of a high-voltage corona electrode (303) of an ion source (100), gas ions (IK) are created in a separate body (110), the gas ions (IK) formed are led to the chamber (20) and mixed with the flue gases (PK), in order to charge- the fine particles (H) with the- aid of the gasions (IK), and the charged fine particles (VH) are collected on the collector surfaces (KP), the said separate body (110) is an electrically passive part of- the ion source (100), a counter potential to the corona electrode (303) is formed as is a collector surface (KP) for the charged particles (VH) from the walls (200), of the said selected chamber (20). The invention also relates to. a corresponding device and arrangement for collecting fine particles from flue gas.