Patent DE-102006012277-A1 (DE)
Title: Device for distillation of liquid mixtures, solutions, dispersions and/or other distillation liquids, comprises low-pressure container, hollow plate-heat exchanger, sump, distillation liquid-riser, exhaust-fan, and rotational atomizer
Inventor: EICHHOLZ HEINZ
IPC: B01D3/42
Filed: 2006-03-15
Abstract: A device for the distillation of liquid mixtures, solutions, dispersions and/or other distillation liquids, comprises a low-pressure container (1), a hollow plate heat exchanger (3), a sump (16), a distillation liquid riser, an exhaust fan, and a rotational atomizer. An upwardly open hollow plate heat exchanger is incorporated into the low-pressure container. The distillation liquid is partially brought for evaporation at the external walls of the plate. The riser has a spiral-like conveying device, e.g. auger or spiral conveyor. The device for the distillation of liquid mixtures, solutions, dispersions and/or other distillation liquids, comprises a low-pressure container (1), a hollow plate heat exchanger (3), a sump (16), a distillation liquid riser, an exhaust fan, and a rotational atomizer. An upwardly open hollow plate heat exchanger is incorporated into the low-pressure container. The distillation liquid is partially brought for evaporation at the external walls of the plate. The riser has a spiral-like conveying device, e.g. auger or spiral conveyor. The spiral-like conveying device with the rotational atomizer is coupled directly or via a transmission. At the base of the low-pressure container the sump is placed, in which in the operation of the device the distillation liquid is collected. The distillation liquid riser initiates in the sump and ends above the hollow plate heat exchanger. Above the hollow plate heat exchanger, the exhaust fan is arranged with which steam rising from the hollow slab heat exchanger is receivable and the steam is supplyable to the interiors of the hollow slabs of the heat exchanger. A take-off pump (13) is connected to a liquid collecting area of the hollow plate heat exchangers. The riser has a conveying device and in the area of the upper end of the riser the rotational atomizer is arranged, with which the distillation liquid promoted upwardly by the riser is atomizable and is locatable in atomized form. A drive motor is arranged within the low-pressure container for the joint drive of conveying device and rotational atomizer. The drive motor for the conveying device and/or rotational atomizer is a water-cooled electric motor. The capacity and the rotating speed of the respective driving motor of the conveying device and/or the rotational atomizer are controllable. The rotational atomizer from an atomizer disk has superimposed radial bars aligned to the rotating center. The outlet of the exhaust fan is connected via a steam distributor hood to the arrangement of the heat exchanger plates. A horizontal platform is arranged within the low-pressure container, in which the drive motor stands on the platform and hangs on their lower surface of the riser. The heat exchanger plates are held parallel to each other and at a mutual distance. The head of the heat exchanger has a collar limiting fog coming from the rotational atomizer. A reception area of the condensate is mounted in the area of the heat exchanger and is connected with the pump via a collecting line. The reception area is connected above the entrance of the collecting line. The exhaust pipe ends below the level of the distillation liquid sump. The discharge pipe of the exhaust pipe is arranged in height adjustable manner. The exhaust pipe is led across an apex lying in relation to the tube inlet. The exhaust pipe is sealed off below the level of the distillation liquid sump by a perforated disk. An independent claim is included for a control device for a low-pressure container.