Abstract: The invention relates to a fluidizing plate, comprising a supporting structure and plate segments, the plate segments respectively having openings through which gas flows during operation. The plate segments are respectively releasably connected to the supporting structure and two neighboring plate segments respectively overlap and are releasably connected to one another in the region of the overlap. The invention also relates to an apparatus with such a fluidizing plate.

Abstract: The invention relates to a fluidizing plate, comprising a supporting structure and plate segments, the plate segments respectively having openings through which gas flows during operation. The plate segments are respectively releasably connected to the supporting structure and two neighboring plate segments respectively overlap and are releasably connected to one another in the region of the overlap. The invention also relates to an apparatus with such a fluidizing plate.

Abstract: A valve accommodated in a separation tray including upper (3) and lower (5) trays, a lock (1) formed between the upper (3) and lower (5) trays. The valve (13) includes a closing element (11) configured such that an orifice (9) in the lower tray (5) is closed by the closing element (11) in a first valve position so that liquid flows from the upper tray (3) into the lock (1), and, in a second valve position, the orifice (9) and an orifice (7) in the upper tray (3) are opened so that gas flows through the lock (1) and liquid on the upper tray (3). The closing element (11) is in the form of a hood including a jacket (23) having orifices (21) positioned in such a way that, in the second valve position, gas flows through the orifices (21) into the liquid on the upper tray (3).

Abstract: A slide grinding machine having a turntable and a work container rotated by the turntable has an air pressure operated automatic gap setting feature having a zero gap width reference value to adjust the gap width between the turntable and the work container.

Abstract: In a method for the automatic gap setting in slide grinding machines having a turntable, the gap width between the turntable and the work container is automatically set by a regulation, with a reference value for the gap width of zero being determined.

Abstract: In a method for the automatic gap setting in slide grinding machines having a turntable, the gap width between the turntable and the work container is automatically set by a regulation, with a reference value for the gap width of zero being determined.

Abstract: A valve for carrying out a mass-transfer process, in which a gas flows through liquid standing on a separating tray, when the gas supply is interrupted the liquid flows into a lock and, when the gas supply is restarted, the liquid flows out of the lock, wherein the valve contains a closing element which is designed in such a manner that, with the closing element in a first valve position, a first opening in a lower tray of the lock is closable, and the closing element is conducted in a first sleeve which is positioned between the upper tray bordering the lock and the lower tray in which sleeve, in the region of the lock, second openings are formed, and which projects over the upper tray and has a lift limiter for the closing element.

Abstract: The invention relates to a valve for carrying out a mass-transfer process in which a gas (13) flows through a liquid (31) standing on an upper tray (21), when the gas supply is interrupted the liquid (31) flows into a lock (17) beneath the tray (21) and, when the gas supply is restarted, the liquid (31) flows out of the lock (17) through a lower tray (19) bordering the lock (17) downward, wherein the valve (1) comprises a closing element (5) which comprises a piston rod (5), an upper valve disk (9) and a lower valve disk (7), and which is conducted in a sleeve (3), wherein the lower valve disk (7), in a first valve position, closes an opening (43) at the lower end of the sleeve (3). The upper valve disk (9) and the lower valve disk (7) are each movably connected to the piston rod (11).

Abstract: The invention relates to a column for carrying out gas/liquid mass-transfer processes, wherein, in the column (27), at least one lock (15) bordered by an upper separating tray (17) and a lower separating tray (19) is received, which lock is designed in such a manner that, during the mass-transfer process, gas (23) flows through the lock (15) and a liquid (25) situated on the upper separating tray (17), when the gas supply is interrupted the liquid (25) flows into the lock (15) onto the lower separating tray (19) and when the gas supply is renewed, the liquid (25) drains downward out of the lock (15).

Abstract: In a method for the automatic gap setting in slide grinding machines having a turntable, the gap width between the turntable and the work container is automatically set by a regulation, with a reference value for the gap width of zero being determined.

Abstract: The invention relates to a column for carrying out gas/liquid mass-transfer processes, wherein, in the column (27), at least one lock (15) bordered by an upper separating tray (17) and a lower separating tray (19) is received, which lock is designed in such a manner that, during the mass-transfer process, gas (23) flows through the lock (15) and a liquid (25) situated on the upper separating tray (17), when the gas supply is interrupted the liquid (25) flows into the lock (15) onto the lower separating tray (19) and when the gas supply is renewed, the liquid (25) drains downward out of the lock (15).

Abstract: The invention relates to a valve for carrying out a mass-transfer process in which a gas (13) flows through a liquid (31) standing on an upper tray (21), when the gas supply is interrupted the liquid (31) flows into a lock (17) beneath the tray (21) and, when the gas supply is restarted, the liquid (31) flows out of the lock (17) through a lower tray (19) bordering the lock (17) downward, wherein the valve (1) comprises a closing element (5) which comprises a piston rod (5), an upper valve disk (9) and a lower valve disk (7), and which is conducted in a sleeve (3), wherein the lower valve disk (7), in a first valve position, closes an opening (43) at the lower end of the sleeve (3). The upper valve disk (9) and the lower valve disk (7) are each movably connected to the piston rod (11).

Abstract: The invention relates to a method for carrying out a mass-transfer process in a column (1) comprising at least two separating trays (5), wherein each separating tray (5) comprises an upper tray (7) and a lower tray (9), and between the trays (7, 9) a lock (13) is formed, and valves (11) are provided which are designed in such a manner that a gas can flow through the separating tray (5), on interruption of the gas flow liquid flows from the upper tray (7) into the lock (13), and when gas supply is restarted, the liquid drains out of the lock (13), comprising the following steps: (a) flow of a gas exiting through valves (11) in the separating tray (5) through a liquid standing on the upper tray (7), wherein the amount of gas is high enough that no liquid flows back through the valve (11), (b) interruption of the gas supply in such a manner that the liquid runs through the valves (11) into the lock (13), (c) restart of the gas supply, wherein valves (11) in the lower tray (9) open, in such a manner that the liq