DE7086C - Auger with internal heating for heating and drying materials - Google Patents

Description

1878.

Class 82.

NAGEL & KAEMP in HAMBURG. Auger with internal heating for heating and drying materials.

Patented in the German Empire on December 14, 1878.

The illustrated by drawing in FigNi to 3 Snail with internal heating is intended to serve different materials, in the first place Grain to be heated resp. to dry. .

A worm gear B is placed on a hollow cylinder A, between the individual threads of which a number of radial or almost radial blades C are attached.

The entire cylindrical body A with. Screw turns B and the blades C rotates around its geometric axis and that within a trough D, the lower half of which has a. Forms a semicircle, while the upper part has vertical or sloping walls.

To be heated bezw.- material to be dried is located between the hollow cylinder A and the trough D, it will α abandoned at the front end and discharged at the other end at b again, while, conversely, the heating gases BEZW; the steam used to heat the hollow cylinder A flow in the opposite direction through the hollow cylinder.

^; In the drawing - internal heating by means of steam is assumed, and it enters the cylinder through the hollow axis at c , and again through the opposite hollow axis at d . from the cylinder. Here, the Dampfausströmungsrohr is d, as indicated in the drawing, curved downward, to serve simultaneously to derive the in'dem Cylinder accumulating Condensationswassers.

While the material introduced at α , as a result of the slow rotation of the cylinder d, is pushed gradually from α to b in the axial direction by the screw windings B , the blades C, which sit between the screw windings, cause the material to constantly overturn the heat radiating on the walls of the hollow cylinder A and on the screw windings B is heated more and more.

By turning the hollow cylinder more quickly or more slowly, which, as indicated in the drawing, may be stored in two end bearings, or instead on external support or friction rollers, by regulating the amount of bulk material, as well as by stronger or weaker heating inside the Hollow cylinder A you have it completely in your hand ^ to heat the material introduced at α more or less in the time it takes to get from α to b.

If you only want to warm it up, it will be good to close the top of the trough D with a lid; If, on the other hand, one wants to dry the material introduced at a , it is better to either leave out the upper cover entirely, as the drawing shows, or to put on a cover at the top so that an air flow is opposite to the direction of advance of the material, i.e. in in the direction from b to α between the lid and the screw,>: to remove the moist vapors formed during heating. C.

When it comes to drying or When heating grain, it is good to make the lower semicircular part or bottom of the trough? -, - from "wire mesh, or perforated, drilled sheet metal, in order to / all sticking to the grain during heating and ':, the constant overturning by the shovels £ 7 to remove dust, dirt and shell parts through the mesh of the bottom of D , while the warmed, dried and at the same time cleaned grain is withdrawn from the auger trough at b.

Claims (1)

Patent claim: The connection of a heating screw heated from the inside by steam etc. with a ventilation device and dust sieve in the manner shown and described. For this purpose I sheet drawings.