US285627A - Rotating furnace - Google Patents

Description

(No ModL) 2 Sheets-Sheet 2. y J. B. HYDE.

ROTATING FURNAGE.

,627. Patented Sept. 25, 1883.

Ilya.

INVENTOR UNITED `STATES PATENT OEEieE.

J. URROWS HYDE, OF NEW YORK, N. Y.

RoTATiNe EURNACE.

SPECIFICATION forming part of Letters Patent No. 285,627, dated September 25, 1883.

/ Application filed September 14, (No model.)

' citizen of the United States of America, re-

siding at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Rotating Furnaces and Apparatus Connected Therewith, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to an ore roasting and smelting apparatus; and it consists in the parts which will behereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure l represents a side elevation of the cylinder and furnace, a part of the furnace being broken away, showing1 the position of the rear end of the cylinder therein. Fig. 2 shows a front View of the furnace mounted upon masonry. The dotted lines in this View indicate the position of the cylinder and grated hearth; and Fig. 8 shows a cross-section through the cylinder, showing the masonry upon which it is mounted, the friction-rollers, and actuating spur-wheel.

Similar letters indicate like parts throughout the several views.

The letter a. represents the furnace; b, the cylinder, constructed in sections b 115, and c d the masonry upon which they are mounted.

c e e are ilat rings riveted to one end of a section of the cylinder and overlapping the adjoining section.

'i z' are clamp-plates riveted to their respective sections, and secured to the adjoining sec` tion by means of a screw-bolt and nut, thereby serving as connecting-links to unite the sections.

f f f are three rings or circumferential flanges secured to cylinder b, and g giudicate toothed rings secured to and encircling said cylinder.

h 7L are metallic caps upon the elevations cZ.

7s is an elevated grate-hearth adapted to receive incandescent coal or other fuel. A combustion-j et (not shown) is placed immediately under said grate.

Z is a crank secured to aspur-wheel, Z, which engages the teeth in a spur-wheel, m', and said wheel m engages spurs on the inside of the bottom or tread wheel, s.

The wheels s support the furnace, and are adapted to move and convey the same upon the flanged rails s', said wheels s being operated through the medium of the crank Z and lintervening spur-wheel, m.

m m a are tuyeres, the one, n, being adapted to receive hydrocarbon, and the other two, m m, being adapted t0 the reception of pulverized fuel. Said tuyeres are also adapted to receive air, gas, or hydrocarbon vapor. In the use of air it is preferable that it be heated and blown in.

In using powdered fuel it maybe blown into the furnace through the openings m on with the air-blast. o o are dotted lines showing the course of the blast through the furnace and into the cylinder.

p is a recess in the masonry c, to facilitate the removal of material. The sides of the recess p (marked p) are closed by hinged iron shutters. These shutters are made in four pieces, the two lower ones being hinged to the two upp'er pieces. Sai dlower pieces fold upward over the face of the upper pieces, and said upper pieces fold back against the sides c. The object of this construction is to have the lower sections of the shutter fold up so as to clear the sloping hearth. The recess p is closed by shutters similar to those on the side.

r represents the ground-surface, beneath which is the sloping hearth r. The bottom of the furnace a is open to admit the material to pass through onto thehearth 1", from whence it is removed when the shutters p p', either one or both, are thrown back, as specified.

q is a shaft rcvolubly mounted under the cylinder. Said shaft is provided with miterwheel u', which gears with miter'u.

a u are spur-wheels on said shaft, which mesh in the teeth of rings g g.

t tnt are grooved friction-rollers in which the fianges fffiit, and by means of which the cylinder is revolubly supported.

It will thus be seen that by turning the gear wthe cylinder will be rotated.

w represents the funnel-shaped end of the cylinder.

x x are wedges under the caps 71, adapted to raise or lower the inclination of the cylinder. The caps ZL are niade'to overlap the front end of the masonry, whereby they are secured against the rearward tendency of the cylinder caused by its inclination.

l construct the cylinder slightly taperingV toward the base end, to compensate for the eX- pansion of the iron shell, and consequent loosening of the lining, which is usually of firebrick or other refractory material.

Having thus described my invention, I claim as new and desire to secure by Letters Patenty 1. The combination of the rotating cylinder, the open-bottom furnace provided with wheels, a track, and a recess below said track, adapted to receive the discharge from the lower end of the cylinder, substantially as described, and for the purposes set forth.

2. The shaft q, provided with bevel-gear wheel u and spur-wheels u, the grooved friction-rollers t, compound caps h, and wedges a', in combination with the cylinder b, provided with rings f g, the latterI being toothed, substantially as set forth.

3. The shaft q, provided with bevel-gear wheel u and spur-wheels u, the grooved friction-rollers t, compound caps 7L, wedges x, and cylinder b, in combination with the furnace a, adapted to movente and from the end of the cylinder, substantially as set forth.

4. The cylinder b, mounted as specified, in combination with the movable furnace a, provided with gratehearth 7c and openings m m n, as specified.

5. The masonry c, provided with recess and shutters, as specified, the furnace a, mounted 0n wheels and provided with openings m m n, and ,grated hearth k, in combination with cylinder b, inclined as specified.

6. A dissectible rotating` ore-roasting cylina der made up of sections, said sections being united by means of lap-rings and clamp-fastenings, the wing of the lap serving as a guide to the joining thereof and for securing the cylinders together, as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

A. B. ROBERTSON, A. HARRY SEMMEs.

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