US382986A - Reheating-furnace - Google Patents

Description

(No Model.)

T. O. JONES.

EEHE ATING FURNACE.

Patented May 15; 1888.

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mamm- (No Model.) 2 Sheets-Sheet 2. T. C. JONES. REHEATING FURNACE.

No. 382,986. Patented May 15, 1888.

Wm M .TW m M NITED STATES PATENT rrren,

THOMAS OATESBY JONES, or LYNOHBURG, VIRGINIA.

REHEATlNG FURNACE,

SPECIFICATION forming part of Letters Patent No. 382,986, dated May 15, 1888. Application filed July16,1887. Serial No.244,526. (No model.)

To on whom it may concern.-

Be it known that I, THOMAS CATESBY J ONES, a citizen of the United States, residing at Lynchburg, in the county of Campbell and State of Virginia, have invented a new and useful Improvement in Iteheating-Furnaces, of which the following is a specification.

My invention relates to an improvement in reheating-furnaces; and it consists in the pe culiar construction and combination ofdevices, that will be more fully set forth hereinafter, and particularly pointed out in the claims.

The object of my invention is to provide certain improvements in that class of furnaces in which the gas from a blast-furnace is utilized in a reheatingfurnace to economize fuel, whereby the efficiency of this class of furnaces will be increased.

In the drawings, Figure l is an elevation, partly in section, of a furnace embodying my improvements. Fig. 2 is partly a top plan view of the same and partly a horizontal section, taken on the line :10 x of Fig. 1.

A represents the cupola of a blast-furnace, and B represents a pair of reheating-furnaces, which are arranged within a suitable distance of the blast-furnace. Each reheating-furnace has a chamber, 0, in its front end, corresponding with a combustion-chamber, and is provided with a hearth, D, over which a flue, E, extends in the usual manner.

F represents an opening made in one side of each reheating-furnace, through which iron may be introduced to or taken from the furnace.

At the rear end of each reheating-furnace is a stack or chimney, N, the lower end of which is opened and communicates with the rear end of the flue E. I

0 represents a pipe which is arranged in front of the reheatingfurnace, and P represents a pipe which extends from the upper end of the cupola A and communicates with the pipe 0. A pipe, It, extends from the pipe 0 and runs between the reheating-furnaces, and from the rear end of pipe R extend branch pipes S, the outer ends of which are upturned and are arranged in thelower ends of the chimneys N.

T represents dampers with which the pipes S are provided.

Communicating with the pipe 0 are T'- shaped pipes U, which are arranged transversely under the chambers O of the furnaces B, and are provided with vertical pipes V, which extend upward toward the said chambers, and are thereby adapted to direct gas from the blast-furnace into the chambers C. The said pipes U are provided with dampers NV.

The operation of my invention is as follows: \Vhen the blast furnace is, in operation and the dampers W and T are opened, the gas from the blast-furnace is fed through the pipes O and P to the combustion-chamber C of the reheating-furnaces, and to the lower ends of the chimneys or stacks N. The front ends of the furnaces are provided with suitable dampers, which are opened to admit air to the reheatingfurnaces in sufficient quantities to render the gas combustible, and the gas is ignited in the combustion-chambers O, and the smoke, flames, and products of combustion therefrom sweep rearward through the fines E over the hearths D, thereby producing an intense heat, sufficient to treat the iron placed upon the said hearths. The current of gas from the upturned ends of the pipes S escapes up the chimneys 0r stacks N, thereby tending to, create a partial vacuum in the reheatingfurnaces, and consequently affording increased draft therefor.

A furnace thus constructed enables the gas which ordinarily escapes from the blast-furnace and becomes wasted to be utilized in reheating the iron.

Having thus described my invention, I claim- 1. The combination of the blast-furnace, the

reheating-furnace having a combustion-chamber, 0, and a stack or chimney, N, and a pipe leading from the blast-furnace to carry off the blast-furnace gases, and having branch pipes communicating with the combustion-chambers G, and with the lower ends of the chimneys or stacks, substantially as set forth.

2. The combination of the blast-furnace, the series of reheating-furnaces, each having a combustion-chamber, G, and a chimney or stack, N, the pipe P, leading the blast-furnace, the pipe 0, extending from the pipe P'past the front ends of the reheat from the top of Ion ing-furnaces, the 'T-shaped pipe U, leading I In testimony thatlclaimthe foregoingas my from the said pipe 0 and provided with the own I havehereto affixed my signatureinpres damper W, and the vertical pipes V in the ence of two witnesses.

c0mbusti0n-chambers, and the pipes R S, lead- THOMAS CATESBY JONES. 5 ing from the pipe 0 to the lower ends of the Witnesses:

chimneys or stacks N, and provided with R. H. ADAMS,

dampers T, substantially as specified. J OHN L. ADAMS.

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