Patent DE-102009000241-A1 (DE)
Title: System for separating particles from process liquids, comprises a cyclone separator, which has a housing with a separation chamber, a suspended solid reception chamber and a sediment reception chamber, an inlet line and an outlet line
Inventor: SCHILLINGER JUERGEN
IPC: B01D21/26
Filed: 2009-01-15
Abstract: The system comprises a cyclone separator, which has a housing with a separation chamber (8), a suspended solid reception chamber (4) and a sediment reception chamber, an inlet line (10) with an inlet opening (12) for supplying the process liquid into the separation chamber and an outlet line (14) flowing into an interior of the separation chamber and having an outlet opening (16), a flow guiding device, which is provided in the separation chamber, and a solid collecting chamber, which is arranged below the sediment reception chamber and has a solid discharge line. The system comprises a cyclone separator, which has a housing with a separation chamber (8), a suspended solid reception chamber (4) and a sediment reception chamber, an inlet line (10) with an inlet opening (12) for supplying the process liquid into the separation chamber and an outlet line (14) flowing into an interior of the separation chamber and having an outlet opening (16), a flow guiding device, which is provided in the separation chamber, and a solid collecting chamber, which is arranged below the sediment reception chamber, has a solid discharge line and is connected with the outlet lines of the suspended solid reception chamber and the sediment reception chamber. The flow guiding device guides the flow of the process liquid from a radially outwardly lying outer area of the separation chamber that is free from the flow guiding device into a radially inwardly lying area of the separation chamber that is free from the flow guiding device. A vacuum line is connected in the upper area of the solid collecting chamber and is connected with a vacuum pump. A further reception chamber is arranged over the suspended solid reception chamber, is connected with the inlet line and is to be connected with the separation chamber over the outlet line. The separation chamber is a cylindrical chamber wall. The suspended solid reception chamber is formed in a truncated-cone-like manner, and is inserted into the further reception chamber that has a cylindrical outer wall. The sediment reception chamber is formed in a truncated-cone-like manner, and is inserted into the solid collecting chamber that has a cylindrical outer wall. The further reception chamber, the suspended solid reception chamber, the sediment reception chamber, the solid collecting chamber and the separation chamber are respectively formed as modular building units, which are to be connected together with clamping rings. The suspended solid reception chamber has a ventilation opening for aerating gaseous constituents from the suspended solid reception chamber. A chemical feeding device is provided for treating the process liquid in a central area of the cyclone separator. A gas supply device is provided for treating and/or floating the process liquid in the central area of the cyclone separator, where the gas is air or oxygen. The gas supply device and/or the chemical feeding device are connected with a distributor ring, which is provided in the central area of the cyclone separator and has outlet openings for the gas and/or the chemicals. A bypass line is provided with a pump from the separation chamber to the further reception chamber. The system includes an electrode cell, which is provided for treating the process liquid by an electric field that is developed between the electrodes of the electrode cell and is integrated into the bypass line. The inlet line and/or the bypass line are a tubular line. One of the electrodes is arranged at an inner surface of the tubular line and the other electrode is coaxially arranged in the tubular line over an insulator. The electrode cell is inserted into the inlet line and/or the bypass line and has a sheath, which has a larger inner space than the inlet line and/or the bypass line. The electrodes form a serpentine-like flow path for the process liquid. The electrodes are insulated against the process liquid. A high voltage is applied to the electrodes. The inlet opening of the inlet line tangentially flows into an outer area of the separation chamber for supplying the process liquid into the separation chamber. The outlet opening of the outlet line flows between the outer area of the separation chamber and a central area of the separation chamber. The flow guiding device has two conductive plates, which run from the central area of the separation chamber that is free from the conductive plates to the chamber wall, end below a distance from the chamber wall and have a bulge in relation to the flow direction of the process liquid, so that the flow of the process liquid is guided from the outer area to the central area of the separation chamber. The conductive plates are connected with one another by a holding ring at its upper and lower lying ends and in the central area and outer area, where the holding ring is anchored to the separation chamber. The flow guiding device is connected to the separation chamber over the outlet line. The area between the conductive plates is freely accessible from the central area. The conductive plates lie in the outer area directly before the inlet opening in the flow direction of the flow. A cylindrical sheath is provided at the circumference of the flow guiding device, which extends itself from one of the conductive plates to the other of the conductive plates in the flow direction of the flow.