US358604A - Delphia - Google Patents

Description

(No Model.) 2 Sheets-Sheet IL I. W. GORDON, V. 0. STROBEL 82; B. BEISEL.

FURNACE PROTECTING. No. 358,604. Patented Mar. 1, 18,87.

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lnven on Attorney Witrlesses I 2 Sheets-Sheet 2 I. W. GORDON, V. 0. STROBEL &.B. BEISEL. Y

FURNAGE PROTECTING.

Patented-Mar. 1, 1887,

DHH IN /NH FIG. 5.

Inventors Witnesses FRED. W. GORDON, VICTOR O. STROBEL, AND BENJAMIN BEISEL, or PHILA- DELPHIA, PENNSYLVANIA, ASSIGNORS T0 GORDON, STROBEL & LAUREAU,

OF SAME PLACE.

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FURNACE PROTECTING.

SPECIFICATION forming part of Letters Patent No. 358,604, dated March 1, 1887.

Application filed March 5, 1886. Serial No. 194,174.

.To all whom it may concern.-

Be it known that we, FRED. W. GORDON, VIo'rOR O. STROBEL, and BENJAMIN BEISEL, of Philadelphia, Philadelphia county, Pennsylvania, have invented certain new and useful Improvements in Furnace-Protecting, of which the following is a specification.

This invention pertains to the protection of furnace-walls from the destructive effects of heating.

The improvements have been devised with special reference to the bosh-walls of blastfurnaces, but will be applicable to other situations.

Our improvements will be readily understood from the following description, taken in connection with the accompanying drawings, in which Figure l is a perspective view of the devices employed by us in protecting the bosh-walls of blast furnaces, the view indicating a portion of a ring-like series of devices, portions being broken away to exhibit the interior construction; Fig. 2, a perspective view of one of the coolers, as we will term them, removed from its pocket; Fig. 3, a vertical diametrical section through a portion of the bosh-wall of a blast'furnace and through one of the coolers and its pocket; Fig. 4, a vertical section, in same plane as Fig. 3, of a modified cooler-edge; and Fig. 5, an elevation, part section, showing our improved system of coolers applied to the bash-wall of a blast-fi1rnace.

In the drawings, A indicates a portion of the bosh-wall of a blast-furnace; B, the inner or heat-exposcd surface thereof, this surface being the one liable to destruction and the one which it is designed to protect; O, a deep upwardly-Opening groove in the wall extending entirely around the furnace, such groove being produced in practice by building the brick-work over box-like castings which form the permanent lining of the groove; D, a series of segmental plates resting upon the floor of the wall-groove; E, a series of segmental plates forming the roof -lining of the wallgroove, these plates joining each other by,

(No model.)

a rabbet-lap, as clearly shown in Fig. 1; F, radial partitions in the groove, formed by downwardly-projecting flanges at one end of each of the roof-plates, these flanges extending the full depth of the groove and plates; Gr, shallow legs projecting downward at the outer edge of each roof-plate immediately between the partitions F, these legs resting upon the floor-plates and serving to support the outer edge of the roof-plates; H, segmental coolers, each adapted to fit into one of the pockets formed by the plates and partitions, the inner segmental edges of the coolers being hollow and projecting into the wall somewhat beyond the inner edges of the plates; J cavities in the rear portion of the coolers, these cavities opening outwardly; and K, pipes for the admission and exhaust of a cooling medium, as water, through the hollow inner edge of the coolers.

When the wall has reached the height at which it is proposed to insert the coolers, the floor-plates D are laid upon the wall. plates E are then set in position upon the floorplates. The coolers are then inserted or dummies of similar form are temporarily employed. The wall-work is then continued and built over the plate-work and within the circle of the coolers.

It should be understood that the object of the plates, partitions, &c., is to compensate for the weakness of the grooved wall. The roofplates are set to break joint with the floorplates, and the partitions F form vertical radial piers within the groove. Each roof-plate is further supported by the pivot-legs G,which also form piers within the wall groove. The roof-plates may be provided with slrewbaclcs,

if necessary, as indicated in the central plate of Fig. 1. Each roof-plate is supported by its own partition-flange F at one end, and by its end lapping over the supported end of the succeeding plate, also intermediately by the legs G. The plate-work thus serves to form a metal lining for the groove,to divide the groove into a circumferential series of pockets and to support the wall-work above. The coolers present their inner edges within the substance of the wall and near the interior surface of the wall.-

The wall is protected from destruction by 5 the circulation of water or other cooling me dium through the hollow inner edges of the coolers, which form an almost continuous circular line with the wall, beinginterrupted only at the partitions F.

The coolers may be formed by casting pipe within their edges, the ends of the pipes turning outward to form the exterior connections, as shown in most of the figures of the drawings, or the cooler may be a cored casting of I 5 iron, brass, or bronze, into which the radial connecting-pipes may be screwed,as indicated in Fig. 4. The coolers are free to beinserted and removed into and from the pockets formed by the plates, and the joints around the coolers may be luted, as with clay. The pockets, being through end walls in radial lines, are obviously wedge-shaped. This permits the coolers to be withdrawn radially for some distance, and then to be withdrawn around the legs by a somewhat rotary motion. The air has free admission to the pockets, and the cavities J in the rear of the coolers permit the air to circulate well within the wall. The wall is thus subjected to the cooling action of the atmosphere for a considerable depth, and beyond the range of the cooling influences of the air the coolers themselves perform their functions. If the coolers become burned out they may be readily replaced. There are as many of the grooves, &c., ar-

ranged in vertical series in the walls as may be desired, and the coolers may have their pipes connected together in any manner de sired. In practice we employ water in the coolers, a circulation being forced through the coolers by means of a pump.

Fig. 5 illustrates clearly the manner of application of our cooling system to the boshwall of a blast-furnace. In that figure a main 5 water-pipe, arranged to receive cold water from any proper source of supply, encircles the furnace near the cooler-grooves, and suitable pipes lead from this pipe to the inlets of the coolers, and the outlet-pipes of the coolers discharge into a circular trough, from which the Waste-water may be led away, as desired. In this figure the piping is shown as so arranged that the water going from the main pipe to one cooler traverses three successive coolers before passing outward to the trough.

Pipe-connections by which the water is led to and from the coolers may be arranged in any suitable manner. None of the peculiarities of this pipe system is claimed herein.v

While we illustrate our improvements as adapted for application to the furnace structure which is circular in plan, it is obvious that they are applicable to structures having a rectangular or other plane,-and it is also obvious that the coolers may be disposed in vertical planes instead of in horizontal ones.

It is common to build water-cooled blocks, arches, segments, 8220., into the walls of furnaces to protect the walls. United States Letters Patent No. 323,80i, granted September 22, 1885 to one Mr. Strobel, show cooling-segments built into a furnace-wall, and will serve as an example of the constructions just referred to. Prior, however, to our pres-v ent invention we know of no furnace-protectin g device by which a continuous cooler is constructed in such manner as to permit the ready removal of the burned-out portion of the continuous system.

By continuous system is meanta system in which the coolingis effected by the mere passage of water through closed pipes or passages as distinguished from spraying systems of cooling, and by ready removal we mean readily removable and replaceable without disturbance of the brick-work of the wall. Spraypipes employed in'spraying system are often removable; but we know of no continuous closed system in which the coolers are removable in the manner pointed out by us.

We claim as our invention 1. In afurnace, afurnace-wall provided with .a peripheral groove having its exterior opening outwardly and with its interior near to the heat-exposed surface of the wall, vertical partitions serving to divide said groove into a continuous series of pockets, hollow coolers disposed one in each of said pockets and adapted to be removed separately outward therefrom, and pipes connected to the hollows of the coolers and adapted for the passage of the cooling medium, combined substantially as and for the purpose set forth.

2. In afurnace, a furnace-wall provided with a peripheral groove having its exterior opening outward and with its interior near to the heat-exposed surface of the wall, vertical partitions serving to divide said groove into a continuous series of pockets, a vertical pier at the exterior of each of said pockets, hollow coolers disposed one in each of said pockets within said piers and adapted to be removed separatelyontward therefrom, and pipes connected to the hollows of the coolers andadapted for the passage of a cooling medium, combined substantially as and for the purpose set forth.

3. In a device for protecting thewalls of furnaces, the combination of plates E, having flanges F at one end and at their other ends havinglips lapping upon the succeeding plates of the series,the hollow coolers II, fitting within the pockets formed by the plates, and the pipes K, connected to the coolers, substantially as and for the purpose set forth.

4. In a device for protecting the wallsof furnaces, the combination of plates E, formed with flanges F at one of their ends and with legs G at the mid-length of their outer edges, and at the opposite ends providedwith lips fitted for overlapping engagement with the succeeding plates of the series, the hollow coolers H, fitting within the pockets formed IIO I the hollow coolers, substantially as and for the IQ purpose set forth.

FRED. W. GORDON. VICTOR O. STROBEL. BENJAMIN BEISEL.

I Witnesses:

HERMAN L. GEROKE, JNo. TAYLOR.

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