US319180A

US319180A - Vincent bietrix

Info

Publication number: US319180A
Authority: US
Publication date: 1885-06-02
Anticipated expiration: 1902-06-02

Description

v. BIETRIX.

FURNACE FOR-PREPARING ARTIFIGIAL FUEL.

(No Model.)

Patented June' 2, 1885.-

n Perms Fhum-Umagnphzr, Wahinpon. 0.2

Warren Snares l nfrnnr Orricn.

VINCENT BIETRIX, OF ST. ETIENNE, FRANCE.

FURNACE FOR PREPARING ARTIFICIAL FUEL.

OPECIPXCATION forming part of Letters'Patent No. 319,180, dated June 2, 1885.

Application filed February 1'2, 1885.

To all whom it may concern:

Be it known that I, VINCENT BIETRIX, a citizen of the Republic of France, residing at St. Etienne, France, machinist, have invented a new and useful Improvement in Furnaces for Preparing Artificial Fuel to be Used in the Manufacture of Coal Bricks, (patented in France, No. 127,871, hearing date December 20, 1878,) of which the following is a specification.

My invention relates to a furnace for more thoroughly mixing the compound for forming agglomerations, and the aims of my invention are, first, to avoid an excess of water in the compound; second, as a means of obtaining a well-manufactured article to heat the com pound uniformly; and', third, to require less motive power than any other apparatus. I attain these results by the furnace illustrated in the accompanying drawings, in which Figure l is a vertical section of the entire furnace; Fig. 2, a top view of the same as it ap pears after the removal of the arch from the furnace, and Fig. 3 a partial section by A B of Fig. 2.

Similar letters refer to similar parts throughout the several views.

The furnace specially applied to the manufacture of coal agglomerations is of circular form. It consists ofa turn-table,P, which moves with the agglomerating-niachine. This turntable is surrounded by brick-work. Supported by a sheet-iron casing upon the brick-work rests a dome shaped arch, through which a cast iron cylinder, 0, having an axis, a, provided with scraper-blades, passes. By a lateral fire-box, F, with two opposing doors in the interior of the furnace, the temperature necessary to eliminate the water contained in the coal, to heat the latter, and to fuse the residue of the coal-tar is obtained. The flames after having licked the upper surface of the compound spread out upon the sole or body of the furnace and heated the arch, which afterwa-rd acts by radiation, pass underneath the body or sole of the furnace to the opposite side from the fire-box through two cast-iron fiues. (Shown in Fig. 3.) They are then carried from thence through a fine to the chimney. Around the casing of the furnace are con structed six openings, 0 o o o o o. The first (N0 model.) Patented in France December 20. 1878, No. 127,871.

four are for the purpose of introducing scrapers directed in the radial form, and furnished with prongs, which turn over the material, stir it up, and thus allow the residue of the coal-tar to melt, the coal to be uniformly heated, and both to present each of their parts to the contact of the flames and of the body or sole of the furnace. Opposite the fifth opening, 0, there are two bars-one fixed, E, the other movable, Ewhieh, by means of the hinged blades a a a, arranged in the form of Venetian blinds, so as to be slanted more or less at will, gradually carry the material from the center to the circumference, turning it over and stirring it up like the prongs. These partitions, in the form of Venetian blinds, are also intended to regulate the thickness of the layer, and consequently the time it should remain on the body of the furnace. Another scraper, R, worked by a rod placed outside the furnace, removes the material from the center to be acted upon by other scrapers, previously mentioned, and regulates the dis charge. The sixth opening, 0, is the exit for the paste or mixture when suitably prepared. These openings act also as windows, by means of which account may be taken of the regular progress of the operation by opening the doors fitted to them.

The entire furnace is constructed upon a bed of masonry, a hollow recess in which allows the shafting to pass and command the bottom or sole of the furnace.

For furnaces for producing large quantities, several furnace floors or soles may be used, one above the other. The compound, arriving on the upper one, falls from one to the other until it arrives on the bottom one, from which it is taken up and carried to the agglomerating-machine. The placing of the floors one above the other may be effected by floors or soles superposed and fixed on the same shaft or by floors or soles supported on differ ent shafts. On each of the floors or soles the compound is stirred about and spread out by scrapers as in the simple furnace. One or more ordinary or gas fire-boxes, as in the first case, give the mixture the desired temperature. The gases, being carried a distance equal to twice the diameter of the floor or sole of the furnace, have time to burn completely and arrive at a low temperature at the chimney. The fuel is therefore well utilized. The scrapers, in thoroughly stirring about and turning over the compound, equalize the heating and fusion, and assist in the preparation of the paste. The high temperature obtained induces a softening of the soldering or sticky properties of the coal, and consequently effects a great saving in residue of tar. Finally, this same temperature effects what is of vital importance, especially when the coal has been washed-via, the elimination of the water. When the residue of tar contains an excess of volatile matters, it may be introduced in the coal at its exit from the furnace, in which case the object of the apparatus is to eliminate the water and heat the coal sufficiently to melt the residue immediately it is incorporated.

The said furnace may be used to heat coal only, or to heat coal previously mixed with the residue of coal-tar whether such furnace be heated by one or more fire-boxes, and whether these fire-boxes be ordinary or gas fire-boxes, the gases being produced by gasmaking machines near to or at a distance from and axis a, substantially as and for the purposes set forth.

VINCENT BIETRIX.

Witnesses:

MARIE BAUM, LEON BATAULT.

30 scrapers E E and R, blades a aa, cylinder 0, a