Übersetzung für "Fallturm" in Englisch

The material-air mixture is fed from the vertical gravity tower 9 directly to the rotating mixture.

From there, go down the university ring towards Fallturm.

As an alternative to dropletization into a liquid, dropletization can also be effected in a prilling tower.

The drop tower there is operated by the Center of Applied Space Technology and Microgravity (ZARM).

The natural material flow is particularly enhanced if the material-gas mixture is fed from an in particular perpendicular storage container, in particular gravity tower or an integrated pipe system, directly to the rotating mixture.

The plant is conveniently operated by first closing the flushing valve, then actuating the vacuum adjusting valve for switching on the vacuum control or vacuum pump, and finally releasing the level control conveniently acting on the automatic contol on reaching a predetermined level of the material-gas mixture, in particular the fibrous material suspension, in the in particular vertical storage container, in particular gravity tower.

In the instant case, the length or height of the rotor 18 substantially exceeds the outer diameter of the rotor, so that said rotor protrudes into the storage container or gravity tower 9 from underneath.

If the foodstuff is supplied in a sterilized or pasteurized form during the dripping, it is possible to produce sterile or pasteurized particles if the drop tower was also sterilized or pasteurized prior to commencement of the production.

In the “conversion of the sterols” process step, the sterols are melted and are either converted into flakes on a flaking roller at 140 to 155° C. or, according to the invention, are converted into droplets by spraying through droplet-forming nozzles into a gravity tower and cooling with cooled and/or dried air flowing in counter-current to such a temperature that they solidify as dust-free beads.

Rapeseed sterols were melted and converted into droplets by spraying through a 650 ?m nozzle under a nitrogen pressure of 0.3 bar at 150° C. into a 24 m tall gravity tower at a rate of 1 kg/h/nozzle, cooled with air at 15° C. flowing in counter-current and solidified.

Rapeseed sterols were melted and converted into droplets by spraying through an 800 ?m nozzle under a nitrogen pressure of 0.35 bar at 155° C. into a 24 m tall gravity tower at a rate of 3 kg/h/nozzle, cooled with air at 13° C. flowing in counter-current and solidified.

This plant has firstly the advantage of relatively uniform drop formation of the molten precursor through vibration excitation, and secondly the advantage of relatively simple construction, which merely makes available a sufficient fall zone in a fall tower in order to ensure a limited residence time of the precursor formed into drops at a temperature above 100° C., the thermal energy released from the precursor formed into drops to the gas flowing in countercurrent being utilized in order to be re-used in an energy-saving manner.

In a preferred embodiment of the invention, the fall zone in the fall tower has a length of from 10 to 20 m, preferably from 12 to 15 m, so that a limited time span of an optimum crystallization time of from 2.5 to 3.5 s can be maintained.

Examples are: rotating tubes, paddle dryers, kneaders, tumblers, agitated fluidized bed, non-agitated fluidized bed, fixed bed, gravity tower, silo, cone mixer with screw, cyclones, screen, vibrating screen and conveyor belts.

Alongside gravity towers, parabolic flights in aircraft and balloon probes, there will in future be various research and payload rockets as well as re-usable space transporters (space shuttles) which can be reserved for industrial applications.

The process according to claim 1, wherein the material-gas mixture is directly fed to the rotating mixture from a vertical storage container or gravity tower.

Along with sixth grade students from Bonner Gymnasium, the Doctor in Physics watched how water behaves in a drop tower during a brief moment of weightlessness.

In addition, the ITA, in cooperation with Centre for Quantum Engineering and Space-Time Research (QUEST) of the Leibniz University Hanover, is putting a globally unique fall tower, the Einstein Elevator, into practice.

One possibility is to build a very high tower, a so-called drop tower, with a tube that is evacuated to minimize air friction and eliminate rest forces, and a device to catch the experiment.

The mixing can also be effected by means of flow of the substance or substance mixture through the reactor, for example by means of a continuous flow reactor, bubble column with or without packings, trickle bed reactor, fluidized bed reactor or freefall tower.

They may then be melted and solidified into dust-free spherical particles by spraying through droplet-forming nozzles into a gravity tower and cooling with air flowing in countercurrent.

If the foodstuff is supplied in a sterilized or pasteurized form during the dripping, it is possible to produce sterile or pasteurized particles if the drop tower was also sterilized or pasteurized prior to commencement of the production.

In a further preferred embodiment of the invention, a flow rate of from 0.3 to 1 m/s of the gaseous medium in the fall tower is set via a fan.

The fan may be arranged in the base region in front of or behind the heat exchanger and, as a pressure fan, generate the countercurrent of the gaseous medium in the fall tower, or it can be in the form of a suction fan and be positioned after the outlet aperture for gaseous medium of the plant in the region of the drop-formation space around the nozzle head.

During drop formation of a polyester precursor having an intrinsic viscosity of less than 0.15, the fall time may not be sufficient for surface crystallization in the fall tower of the working example, so that drops of a melt of low viscosity may remain tacky and thus block the collecting funnel.