DE541537C - Device for drying damp deposits, in particular lithopone - Google Patents

Description

Device for drying damp precipitation, in particular of Lithopone Da, main patent describes a device for step-by-step drying of damp \ ie (laps in drum ovens, -, N-obe i the desirability both indirectly takes place in parallel # troni and at the same time directly in countercurrent. At this Drying devices are the directly acting drying gases, «-elche your Moist material is fed away through bores of different lengths: here the hotter gases flow to the point at which (read Gut is most humid, while the already pre-dried goods only come into contact with less% \ - poor (gases in contact comes. The front end of the drum is tapered to allow for the peeling off, with to force the dry dust of the goods laden gases, the dust on the in the Drum to knock down imported damp goods.

The invention provides an improvement on that described in the main patent Arrangement thereby, (measure a known worm thread in the end of the 'Central pipe is installed to give the hot air a helical or rotating Grant movement. This happens because despite what is described in the main patent conical shape of the drum still a certain amount of dust carried away by the gases will. This is ntui completely deposited on your heuchtgut. (iaß the hot gases are set in rotating motion and the dust particles by centrifugal force be thrown onto the damp paste.

Due to the twist given to the hot air, (Miese is forced to Significantly shorter way through the damp to cover than before, namely not in a straight, but in a helical motion, and (thus the drying effect elevated. The remaining hot air is also with that from the remaining pipes incoming warm air -fit mixed.

The drawing shows the shape of the central pipe and the passage of air through the moist material.

Ahh. i shows the drying device in longitudinal section, fig. a one Section along line A-B and Fig. 3 a section along line C'-D. The drum i, which is rotated around its axis of length, runs into a wreath at its rear part from individual pipes 2, through the (read the material to be dried and in countercurrent to it (The drying gas is passed through. This is done with your already pre-dried Gas that comes into contact is only moderately sensitive. A central tube 3 protrudes in into the anterior chamber. The more heated gases are passed through this pipe. which are brought into contact with the moist material in the pre-drying chamber i. Ani Gasatistrittsende of the pipe 3 is: I (read worm thread 12, through Which. the hot air is given a swirl movement. how (read through the dashed Line 13 is shown. This creates an effective touch of the damp Good things take place with the hot gases.

The remaining parts of the drawing correspond to those described in the main patent. Accordingly: 5 denotes the likewise rotating jacket. ti is the entry point for the indirectly acting heating gases carried in the same dough with your dry goods. ; its exit point, `a heat exchanger. in which the exhaust gases give off their heat to the directly acting drying gases fed to the pipes a or 3, 9 a conveying device for the goods to be introduced into the drum i, io the outlet container for the completely dried goods, i L (read the exhaust pipe for the directly acting Dry gases.

Claims (1)

PATR \ TA NSPRUC1-1 '' device for drying damp precipitation. in particular by Litliopone, according to patent 528 656, characterized, (dimension in which the guide tubes for the hot air screw threads are installed, (depending on which of the hot air entering the pre-drying zone a twisting movement is granted