US687524A

US687524A - Manufacture of cement.

Info

Publication number: US687524A
Application number: US5590301A
Authority: US
Inventors: Christian Fellner
Original assignee: Individual
Current assignee: Individual
Priority date: 1901-04-15
Filing date: 1901-04-15
Publication date: 1901-11-26
Anticipated expiration: 1918-11-26

Description

l K No. 687,524. Patented Nov. 26, 190|. f c. FELLNEB.

MANUFACTURE UF CEMENT.

(Application led Apr. 15, 1901.)

(No Model.)

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UNITED STATES PATENT OFFICE.

CHRISTIAN FELLNER, OF FRANKFORT-ON-THE-MAIN, GERMANY.

MANUFACTURE oF CEMENT.

SPECIFIGATIGN forming part of Letters Patent No. 687,524, dated November 26, 1901.

` Application tiled April 15,1901, Serial No. 55,903. (No specimens.)

To all whom, t may concern:

Be it known that I, CHRISTIAN FELLNER, manufacturer,of Frankfort-on-the-Main,Germany,have invented new and useful Improvements in the Manufacture of Ce1nent,of which the following is a specification.

The present improvements relate to the manufacture of cement,Portland cement, and other cements, and more particularly to that kind of manufacture wherein the constituents of the cement are rst in molten condition-as, for instance, in the manufacture of cement out of the slags of blast-furnaces.

The invention consists in the particular means hereinafter described and claimed for treating the molten material and converting it into marketable cement. It is necessary for this purpose to divide the molten material in fine particles as much as possible and bring the sameinto contact with suficientair to cause the complete combustion of all deleterious elements, as sulfur, dac., if there are any. For this purpose a rotating cone or plate or equivalent device is provided, to the top of which the molten material is fed. On striking the surface of the quickly-rotating body the material is dispersed by centrifugal force and iinely divided.

In order that the present invention may be fully understood,a drawing is annexed, showing the preferred form of the new apparatus.

d is a gutter conducting the molten material from the melting-place and dropping it.

to the center of the rotating stepped cone b. This cone b, of iron or other suitable material, is hollovT and supported by a hollow axle c, which is held in the bearings n and rorated by any known means-as, for instance, the shaft p and conical gears q. The foot end of the axle c is introduced into a stuffing-box r, which connects it with the airconduit d. The cone ZJ has a number of small perforations or twyers e, by which the compressed air entering by the conduit d is ejected. This air serves to cool the cone, to assist in the tine distribution of the molten material, and to supply oxygen for the combustion of the obnoxious admixtures. The

rotating cone is surrounded by a mantle f, which is preferably arranged at a considerable distance from the center. The distance of five to siX feet has been found practical to allow time for the combustion of the ignited particles while passing up in the space between the rotating cone and the mantle. This mantle f is open at its foot, as indicated at 7i, and at its top end to allow the passing of air. The air-current may be strengthened by making the mantle higher than necessary to catch the iiying particles. The mantle is preferably cooled at the zone, where the particles thrown outward by the cone b impinge. A cooling-jacket g is provided for this purpose. The cooling prevents the adhering of the particles to the mantle and improves the product. The dropping material is collected in a cone k and discharged by the channel l.

A gallery m is provided for the man in charge of the apparatus.

Now what I claim, and desire to secure by Letters Patent7 is the following:

1. The combination of a hollow perforated rotatable body provided with perforations and increasing in diameter downwardly,a hollow axle communicating with said body and adapted to connect it with a supply of compressed air, and means for conveying material on top of said body.

2. The combination of a rotatable hollow body provided with perforations, a hollow axle communicating with said body and adapted to connect it with a supply of compressed air, and a conduit for dropping molten material on said body.

3. The combination of a rotatable bodyhaving a plurality of steps at different leve1s,the lower steps being of greater diameter than the upper steps, and a conduit for conveying molten material to said body.

In testimony whereof I have signed my name to this specication in the presence of two subscribing witnesses.

CHRISTIAN FELLNER.

Witnesses:

JEAN GRUND, CARL GRUND.

DISCLAIMER- @LWL-Obmann Eallner, Frankfort-on-the-Main, Germany. MANUFACTURE or CEMENT. Patent dated November 26, 1901. Disclaimer tiled September 25, l 1912, by the assignee, The Atlas Portland Cement Company. Enters this disclaimer to that part of the claim in said specification which is in the following words, to wit: I

i The combination of a hollow perforated rotatable body provided with perfort and increasing in diameter downwardly, a hollow axle communicating with said body and adapted to connect it with a supply of compressed air, and means for conveying material on top of said body. p

2. The combination of a rotatable hollow 'body provided with perforations, a

hollow axle communicating with said body and adapted to connect it with a supply of compressed air, and a conduit for dropping molten material on said body.'

3. The combination of arotatable body having a'plurality of steps at dierent levels, the lower steps being of greater diameter than the upper steps, and a conduit for conveying molten material to said body.

[Ooz'al Gazee, October 1, 1912.]