The invention relates to a process and an apparatus for chemical smoothing of a plastic part (10) produced by selective layerwise consolidation of a construction material. The process comprises the steps of: temperature-controlling the plastic part to a first temperature; temperature-controlling solvent vapour (8) comprising a solvent to a second temperature; subjecting the plastic part (10) to the solvent vapour (8) temperature-controlled to the second temperature for a particular duration, wherein the subjecting of the plastic part (10) to the solvent vapour (8) has the result that an outer layer of the plastic part (10) is liquefied; and discharging at least a portion of the solvent vapour (8) after the particular duration, wherein the plastic part (10) is stationary from commencement of the temperature-controlling of the plastic part until termination of the discharging of the solvent vapour (8).

In order to provide a treatment installation for treating workpieces that is of simple construction and enables optimised workpiece treatment, it is proposed that the treatment installation should include a treatment chamber and a conveying device, by means of which the workpieces are suppliable to the treatment chamber, are removable from the treatment chamber, and/or are conveyable through the treatment chamber in a conveying direction.

A freeze-drying apparatus (1) includes an arrangement of individual product platforms (19) that are supported vertically in a frame (20) in a drying chamber, in which each platform is able to be moved to a shift level, in which lateral guides (20, 21) designed to support a carriage (15) are arranged with a fixed height position, and which cooperate with the guides (16, 18) of a loading and unloading device. All product platforms (19) in the drying chamber can be loaded by repeating this operation cyclically. In order to unload the drying chamber, the arrangement of the product platforms (19) are moved to such a position above the shift level in which the carriage (15) can be moved as far as its rear limit position inside the drying chamber, travelling underneath each loaded product platform (19).

In order to provide a treatment installation for treating workpieces that is of simple construction and enables optimised workpiece treatment, it is proposed that the treatment installation should include a treatment chamber and a conveying device, by means of which the workpieces are suppliable to the treatment chamber, are removable from the treatment chamber, and/or are conveyable through the treatment chamber in a conveying direction.

A portable sand drying system comprising a plurality of wheeled operational units including a feed hopper, a dryer, and a screen, wherein the wheeled operational units are supported by at least two wheels while operating. One or more of the wheeled operational units include an automatic height adjuster which, when activated, automatically elevates a portion of the wheeled operational unit from a traveling height to an operating height. The plurality of wheeled operational units further includes a motor control center (MCC) to provide power and control signals to the various other wheeled operational units. Non-MCC wheeled operational units contain a pre-wired junction box, which the MCC would plug one or more cables directly into in order to provide one of power, control signals, and both power and control signals to the non-MCC wheeled operational units.

Provided is a paddle processor and a method for processing material within the paddle processor. In one example, the paddle processor may include a trough comprising an inlet to receive a feed of material and an outlet for exiting the material after processing, rotational paddles disposed in the trough and configured to rotate about each other to move the material from the inlet to the outlet, an overflow weir disposed in association with the outlet and having a dynamically adjustable height for controlling a rate at which the material exits the trough, and a control system configured to dynamically adjust the height of the overflow weir and/or other dryer parameters based on a temperature of the material within the trough.

Devices and methods are disclosed for singulating and dispensing a bead. A pocket formed in a primary nest retains a single bead drawn by vacuum from a bulk hopper such that rotation of the primary nest delivers the single bead to an ejection position. At the ejection position, the bead may be delivered to a transfer tube that carries it to a bead receiver. Alternatively, the bead may be delivered directly to the bead receiver from the primary nest or via transfer to a secondary rotating nest. One or both sides of the bead may be examined for defects using inspection ports in the primary and secondary nests.

The application relates to a process for drying a composition comprising an alkali metal salt of a compound of general formula (I) R.sup.1R.sup.2NCHR.sup.3COOM or formula (II) R.sup.1R.sup.2NCHR.sup.3CHR.sup.3COOM, in particular N,N-dimethyl glycinate salt, and the use thereof. In the process, the composition, in particular the N,N-di methyl glycinate salt, is dried by feeding the composition into a fluidized bed dryer and subjecting the composition to a heat treatment by contacting the composition in the fluidized bed dryer with a drying gas stream, and during the heat treatment a solution or dispersion of the composition is sprayed onto at least a portion of the composition present in the fluidized bed dryer, or alternatively or in addition the composition, in particular N,N-dimethyl glycinate salt, is fed into a fluidized bed dryer and subjected to heat treatment in the fluidized bed dryer by contacting the composition with a drying gas stream, and the temperature of the composition in the fluidized bed during the heat treatment does not exceed 50 C.

The invention relates to a process and an apparatus for chemical smoothing of a plastic part (10) produced by selective layerwise consolidation of a construction material. The process comprises the steps of: temperature-controlling the plastic part to a first temperature; temperature-controlling solvent vapour (8) comprising a solvent to a second temperature; subjecting the plastic part (10) to the solvent vapour (8) temperature-controlled to the second temperature for a particular duration, wherein the subjecting of the plastic part (10) to the solvent vapour (8) has the result that an outer layer of the plastic part (10) is liquefied; and discharging at least a portion of the solvent vapour (8) after the particular duration, wherein the plastic part (10) is stationary from commencement of the temperature-controlling of the plastic part until termination of the discharging of the solvent vapour (8).

A rotary vacuum drum drying system is described. The system may include a plurality of sensors and a control system operatively coupled with the plurality of sensors. The control system includes a processing device to receive, from the plurality of sensors, a plurality of parameters of the rotary vacuum drum drying system and transmit, to a client device, the plurality of parameters of the rotary vacuum drum drying system. The processing device is further to receive, from the client device, a message comprising an adjustment one or more parameters of the plurality of parameters and adjust the one or more parameters of the plurality of parameters based on the received message.