US665621A - Furnace. - Google Patents

Description

v Patented Jan. -8, l90l.

0 B L A ,B m 5 6 6 0 F U B N A G E (Application filed Jan. 17, 1900.

4 Sheets-Sheet 1.

(No Model.)

Invenlor:

Pat outed Ian 8, l90l.

4 Sheets-Shot 2.

B. TALBOT. FURNACE. (hpplicatio n and Jan. 17, 1900.

(No Model.)

M ENRN m: unams virus on. vnoroumm. \vAsnmcmm a c No. 665,62l.

Patented Jan. 8, I901. B. TALBOT.

F U B N A O E.

(Application filed. Jan. 17, 1900.)

4 Sheets-Sheet 3.

(No Model.)

' Patented m. 8, I901.

Nd. 665,6'2I.

B. TALBOT FURNACE.

(Application filed Jan. 17, 1900.)

4 Sheets-Sheet 4.

(No Model.)

M @NK I I I A I l l a m/4W 1m: nonms vncns 004 Pncrp-uma. WAsMmoTOm u, c

'struction illustrated in Fig. 1.-

UNlTED STATES rrion.

PATENT FURNACE.

SPECIFICATION forming part of Letters Patent No. 665,621, dated January 8, 1901.

Application filed January 17, 1900. Serial No. 1,724. (No model.)

To all whom it may concern..-

Be it known that I, BENJAMIN TALBOT, residing at Pencoyd, in the county of Montgomery and State of Pennsylvania, have invented new and useful Improvements in Furnaces, of which the following is a specification.

This invention relates to the employment of multiple flames in a furnace or furnaces having, preferably, multiple heating-chambers.

One object of my invention is to employ a central regenerator or regenerators for cooperation in producing the flames and for absorbing the heated volatile products thereof, whether one or more such flames be employed, in an operation in which the flame or flames are adapted to act in constant direction.

A further object of my invention is to so arrange the heating-chambers as to permit their independent or combined use in order that the furnace may be adapted for carrying on either limited or large operations economically and so that a part may be shut down for repairs while the remainder is operated.

In the accompanying drawings, illustrating my invention, Figure 1 is a view in front elevation of a furnace embodying my improvements. Fig. 2 is a top plan view of the con- Fig. 3 is an enlarged partial top plan view illustrating my invention,showing details ofconstruction, with parts broken away for the purpose of illustration. Fig. 3 is a partial sectional view on the line a Ct of Fig. 3 in illustration of the movable covers and their related parts, which may be employed when my invention is used as a pit heating-furnace. Fig. 4 is a vertical sectional view taken longitudinally through the center of the furnace. Fig. 4 is a sectional view taken on the line b b of Fig. 4. Fig. 4 is a sectional view taken on the line c of Fig. 4. Fig. 5 is an elevation illustrating the regenerators and the conduits therefor, parts being shown in section for the purpose of illustration. Fig. 5 is a sectional view taken on the line (2 dof Fig. 5. Fig. 5 is a sectional view taken on the line e e of Fig. 5.

Referring to the drawings, the parts 1 1 are conduits leading from the gas-producers to the furnace. These conduits communicate with the respective conduits 2 2, the entrances to which are controlled by the valves The parts 6 6 are conduits leading from the regenerators to the furnace. nicate with the respective conduits 7 7 which deliver the heated air to the combustion-chambers 4 4., the valves 8 8 controlling the flow of air therethrough.

The heating-chambers 5 5 are wholly separated by the wall 9, the heated products of combustion escaping therefrom through the passages 10 10, each heating-chamber being provided, preferably, with two of such outlets separated by 'a wall 11 11. It will be understood, however, that the walls 9 and 11 11 may be omitted and a common escape or outlet employed for both heating-chambers. The passages 10 10 communicate with the conduit 12, which leads to a valve-chamber 13, communicating with each of the regenerators 14: 14: by the passages 15 15' and also with the drum 16, having the branches 17 17, leading to the flues orconduits 6 6. A valve 18 on the shaft 19 controls the communications through the valve-chamber 13. This valve maybe operated conveniently by means of a pinion 20 on the shaft 19, having a rack 21 engaging therewith and reciprocated at will, as by means of a hydraulic cylinder and piston. The regenerators let 14 are also connected by the passages 22 22 with a valve-chamber 23, opening into the air-supply pipe 24 and the stack 25. Avalve 26 on the shaft 27 controls the communications through the valvechamber 23 and may be operated, as previously described, by a pinion 28 and a rack 29, reciprocated as by a hydraulic cylinder and piston. Each of the regenerators is provided with the usual checker-work 30 for absorbing the heated volatile products from the furnace and heating the air employed in ctfecting combustion. To afford a passage for air from each of the regenerators to the other to be utilized in the combustion of any unburned gases and solid particles of carbon escaping from the furnace, and thus providing energy for heating the regenerators,with means for consuming the smoke, a by-pass 31, preferably controlled bya slide-valve 32, connects the regenerators.

They commu- In the construction which I have shown for the purpose of illustrating my invention the heating-chambers 5 5 are arched over by the fixed arches 33 33', which support the shapes 34 34, affording tracks for the trucks 35 35 and water seals for the movable arches 36 36. These movable arches are the covers for the pit-openings 3'7 37 and are suspended from the trucks 35 35 by the hangers 38, the lower edges of which extend into the water-chan nels formed in the shapes to prevent the passage of flames from the furnace, the ends of the arches being suitably closed by metal plates 39. These trucks and the arches supported thereby are moved by means of hydraulic cylinders 40 40', having pistons connected with the trucks, as by the rods 41 41'.

Slag is run from the furnace through the spouts 42 42, which empty into the slag-pots 43 43 In the operation of heating the furnace gas is passed from the producers through the fines or conduits 1 1 and 2 2 into the furnace, where it is combined with air which has passed from the supply-pipe 24 through the valve-chamber 23 to the regenerator 14,thence through the heated checker-work therein to the valve-chamber l3, thence into the drum 16 and the branches 17 17,and thence through the flues or conduits 6 6 and 7 7 to the furnace. The flames produced by the combination of air and gas act upon the contents of the heating-chambers 5 5, and the gaseous products of combustion pass out through the passages 10 10 to the conduit 12, by which they are conducted to the valve-chamber 13, passing thence through the checker-work in the regenerator 14, and thence through the valve-chamber 23 to the stack 25. To consume any unburned gases, as previously described, heated airfrom the regenerator 14 is passed through the by-pass 31 and combines with the heated products from the furnace in the regenerator 14', thus supplying heat energy and reducing smoke. When the regenerator 14 has become sufficiently heated, the valves 18 and 26 are moved to the reverse positions to those shown, which reverses the current of gas from the furnace, sending it through the regenerator 14, and reverses the air from the supply-pipe, sending it through the regenerator 14. It will ,be seen that by closing the conduits leading to either heating-chamber, as by closing the valves 3 and 8 or 3 and 8, either part of the furnace may be shut down,while the operation of the other or others, Where more than two heating-chambers are employed, may be continued.

Manifold heating-chambers may be connected with the central regenerator or regenerators, as by multiplying the hot-air conduits leading therefrom. A second furnace may be connected with the regenerator through a second hot-air drum 16, having hot-air conduits leading therefrom.

The air-supply for the regenerator may be furnished by fan-blast or it can be obtained by natural draft, as when the regenerators are alongside or beneath the furnace.

The gas producer or producers are placed as close to the furnace as circumstances will permit, and the gas is delivered hot therefrom for combination with the heated air from the regenerators.

While a construction has been shown and described which is specially adapted for soaking or heating ingots, the principle employed is specially valuable in operating a number of furnaces, such as puddling-furnaces or retort coke-ovens.

Having thus described my invention, I claim- 1. In combination with a plurality of furnace heating-chambers, a plurality of regenerators, aconduit for conducting hot air from each of said regenerators to each of said heating-chambers, a conduit for conducting gases to each of said heating-chambers, said conduits being arranged to combine said hot air and said gases a conduit for conducting hot gases from each of said heating-chambers to said regenerators, and valves for controlling the flow of air and gases through said regenerators substantially as specified.

2.. In combination with a furnace having a pair of heating-chambers separated by a removable partition and adapted to be used separately or as a single heating-chamber, a pair of regenerators, a conduit for conducting hot air from each of said regenerators to each of said chambers, aconduit for cond ucting gases to each of said chambers, said conduits being arranged to combine said hot air with said gases, a conduit for conducting hot gases from each of said furnace-chambers to each of said regenerators, and valves for controlling the flow of air and gases through said regenerators, substantially as specified.

3. In combination with a furnace having heating-chambers separated by a removable partition and adapted to be used separately or as a single chamber, a pair of regenerators, a conduit for conducting hot air to each of said heating-chambers, a valve-chamber communicating with each of said regenera tors and said hot-air conduits, a conduit for conducting hot gases from each of said heating-chambers to said valve-chamber, and a 0 said regenerators and the other of said regenerators into communication with said wastepipe, substantially as specified.

In testimony whereof I have hereunto signed my name, in the presence of the subscribing witnesses, this 11th day of J anuary, A. D. 1900.

BENJAMIN TALBOT Witnesses:

THOMAS S. GATES, CHARLES N. BUTLER.

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