US875458A - Continuous heating-furnace. - Google Patents

Description

PATENTED DEC. 31, 1907.

J. REULEAUX. CONTINUOUS HEATING FURNACE.

APPLICATION FILED 00T.5. 1906.

a SHEETS-SHEET 1.

PATENTED 11110.31, 1907. N

APPLICATION FILED 0015,1906.

' 5 SHEETSSHEET 2.

m MwRN Witnesses PATENTBD DEC. 31, 1907.

J. REULEAUX. CONTINUOUS HEATING FURNACE.

APPLICATION FILED OCT-5. 1906.

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PAIENTEDDEG. 31, 1907.

7 J. REULEAUX.

CONTINUOUS HEATING FURNACE.

APPLICATION FILED OUT-5. 1906.

6 SHEETS-SHEET 4.

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PATENTED DEC. 31, 1907.

J. REULEAUX. CONTINUOUS HEATING FURNACE.

APPLICATION FILED OGT.5. 1906..

5 SHEETS-SHEET 5.

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.TOSEF REI'LEAUX. OF \YILKINSBIIRG, PIZNXSYLVANI'A,

A SSIHNO ll TO ALEXANDER L.'\ L'UHLIX, Ol II'WlSIKURG, PENNSYLVANIA.

CONTINUOUSv HEATING-FURNACE.

Specification of Letters Patent.

Patented Dec. 81, H9 07.

Lppl'iatim Iile'l October 5. 1906. Serial No. 337.592v

'1' all whom it may concern:

3e it known that .l, JUSEF Rm'Lnufx, of 'ilkinsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in (ontinuous lleating-Furnaces; and i do hereby declare. the following to be a full, clear, and exaet description of the invention, such as will enable others skilled in the art to whic it appertains to makeand use the same.

The primary object of this invention is to provide improved mear for overcoming the formation of dark streaks on slabs 'orbilletsconsequent upon their contacting with the cooled supports upon which they bear While being heated.

A further object is to allow of the free passage of the heatbetween the transverse piers and the supports, and to keep the supporting legs and piers cool.

The invention Will be l'iereinafter fully set forth and particularly pointed out in the claims In the accompanying drawings, Figure 1 is a vertical longitudinal sectional view of a furnace embodying my improvements. Figs. 2 and 3 are horizontal sectional views on lines 22, and 3-3, respectively, Fig. 1. Fig. 4 is a Vertical sectional view on line Fig. 5 is a similar view on line 5-5, same figure. Fig. 6iis a plan view of a portion of one of the supporting rails. Fig. 7 is a central longitudinal sectional view thereof. 'Figs. 8 and 9 are cross-sectional vieWson lines S--8' and 9-9, respectively, Fig. 7. Fig. 10 is a plan view, and Fig. 11 a longitudinal sectional View of that portion of a supporting rail located above a transverse pier. Figs. 12 and 13 are plan and longitudinal sectional views of a slight modiiication.

Referring to the drawings, 1 designates the combustion chamber; 2 the longitudinally-extended supports; 3 the transverse piers, and 4 the longitudinal piers upon which the supports 2 are mounted. The waste gases or products of combustion upon reaching the far or receiving end of the furnace pass downwardly into a chamber 5, and

thence, through a series of conduits 6 to the other or discharge end of the furnace, and thence into a chamber 7, and thence back upon thcmselves'through a second, or lower, series of conduits 8 leading lo the stackor outlet lluell. The two series of conduitsfi and 8 are loealedin the air-heating chamber lnto which air is mtrmluced through ports I 10, one of which is shown in Fig. 1, and is caused to travel tortuously over and benealh partitions 12 and 13. The several superposed rows of conduits 6 and 8 are spaced apart by blocks 1a to permit of a thorough circulation of the air. The latter being thus preheated passes into achamber 15 and through openings 16 into the gas supply port- 17. The mixture of air and gas then enters the heating chamber through the fuel port 18, over which extend the billet supports 2, and beneath which is the cinder pocket 19. the air is the subject of separate applica tion for patent. i

The supports 2 are made hollow so as to permit of the constant How of water or other cooling medium. To overcome the dark streaks usually present on the undersides of the slabs or billets, 1 form the supports with abrupt drops or steps at a point coincident;

with, or in close proximity to, the fuel port lets"pr viously bearing on the supports will be held away therefrom, and subjected to. the direc actl :n of the heat. For this purose each supporting rail, at a point near the fiiel port, is dropped and prolonged or continued on a lower plane substantially parallcl with the upper portion, so asto form,-at

This arrangement for heating the end of its upper portion, an abrupt shoulder 20 against the edge of which each slab or billet will rest while the lower forward edge bears upon the lower prolongation. Both portions of each rail are hollow, and in the partition 21 are holes or ports 22 for the passage of the cooling medium. Preferably each rail is of triangular formation, in crossseotion, but it is manifest that any suitable formation may be adopted.

To dispense with the brick legs ordinarily built upon the transverse piers, to form bearings for the supporting rails, and which legs are usually destroyed by the-intensity of the heat, 1 form the supporting rails 2 with depending hollow legs 23 which bear directly upon and cover the upper aces of thetransverse piers 3. These legs are supplied with water from the supporting rails, ports .24 per mitting of free circulation and if desired a partition 25 may be lochted intermedinl e the length of each leg so as to divert the circulation of the water or other cooling medium. The depending leg may be of any desired width, thus enabling me to secure ample base for the supports, and yet permit the heat products to have free access to and around the supports and the water bearing legs. The coolmg medium within the legs also cools the large surface of the supporting pier, and prevents its destruction by the action of the flame. Dispensing with the brick legs results in a great saving both in construction and maintenance.

It will be understood that the slabs or billets are introduced into the heating chamber at the receiving end 26, and are gradually forced therethrough, upon the supports 2, by any suitable mechanism, not shown. As theyreach the point of highest heat, each will in its turn assume the inclined position indi cated by the foremost billet Fig. 1, thereby permitting the dark streaks on the underside thereof to be removed by the direct action of the heat, whereupon billet will be discharged from the furnace he delivery or outlet end 27.

Not only am I enabled to .fiectively remove the dark streaks, but the life of the furnace is greatly prolonged by the hollow water legs displacing the brick legs heretofore used.

I claim as my invention:

1. In a continuous heating furnace having its point of highest heat at or near one end, supports for the material being heated 6X- tended from the receiving end of the furnace over such point of highest heat, and at or near such point formed with a 'step or shoulder and a prolongation on a'lower plane, the underside of the material being held away from the supports in passing to the lower portions thereof.

2. In a continuous heating furnace'having its point of highest heat ator near one end, supports for the material beingheated extended from the receiving end of the furnace over such having a prolongation on a lower plane, the upper and lower portions being substantially parallel and on side of the material 1s held away frdm the from the upper point ofhighest heat, each support such planes that the under l I l support in passing from the upper to the lower portions thereof.

4 3. In a continuous heating furnace having its point of highest heat at or near one end, supports for the material being heated extended from the receiving end of the furnace over such point of highest heat, each support being hollow and at. or near such point having a prolongation on a lower plane with passages for a cooling medium between the upper and lower portions of the su port, a shoulder being formed by the end of t io upper portion of the support for causing the material to occupy a position different from that which it occupies when wholly on either the upper or lower portions of the supports.

4. In a continuous heating furnace having transverse piers, supports for the material being heated composed of rails extending lengthwise of the furnace -and having depending legs forming parts thereof constructed to contain a cooling medium and form. a covering for the upper faces of the piers upon which they rest.

In a continuous heating furnace having transverse piers, supports for the material being heated composed of hollow rails extending lengthwise of the furnace and designed to convey a cooling medium, and de pending hollow legs forming parts of said rails and communicating therewith, said legs being constructed to form a covering for the upper faces of the piers upon which they rest.

6. In a continuous heating furnace having transverse piers, being heated composed of hollow rails designed to convey a cooling medium, depending hollow legs communicating with such rails and forming coverings for the upper faces of said piers, and means for diverting the cooling medium from the rails into said legs.

p In testimony whereof, I have signed this specification in the presence of two subscribmg witnesses. I

JOSEF REULEAUX.

l/Vitnesses:

FRANCIS S. MAeUmE, VERNON E. Wnsr.

supports for the material

Images