US915601A - Blast-furnace. - Google Patents

Description

SAMUEL K. HINE AND wILLiAM a. PHIBBS, or GIRARD, OHIO.

BLAST-FURNACE eraser.

Specificationof Letters Patent Patented March 16 1 90 9.

Application filed June 2a, 1908. Serial No. stain.

' all whom it may concern:

me rennin: Purses, residing at Girard, in e county of Trumbull and State of Ohio, invented a certain new and useful l1novenient in Blast-Furnaces, of which the lowing is a full, clear, and exact descrip- -am, reference being had to the accompanyin charging blast furnaces there has been iderable difiiculty in properly distribut- I g the charge in the furnace, due to the fact when the bell is lowered, the material lng outwardly gradually cuts away the of the furnace and thus makes a ragged e on which material lodges.

an object of the present invention is to rovide simple and effective means to preent this interference with the distribution. end we have provided a metal shield a1 ound the interior of the furnace at, and extending below,the stock line and adapted to receive the impact of the outwardly sliding load when the bell is lowered. This shieldis made in segmental sections and is set into the furnace wall so that its inner surface is flush with the inner surface of the wall. We provide means to securely hold the shield in place. In order that the shield may not burn out we may arrange cooling pipes within it., Our invention comprises the shield above described, with or without the cooling pipes.

it also includes the more particular enibodiinentshown in the drawing and hereinafter-more fully described; I

I the drawing, Figure 1 is a vertical central section through the upper portion of a blast furnace; Fig. 2 isa partial horizontal section through the same; Fig. 3 is a perspec tiv'e view'of one'segment of the shield partially broken away.

Referring to the parts by reference letters,

' ilmrepresents the brick work of the furnace,

wall and B the surrounding jacket. is the upper portion of the hopper and C the hop- T D represents the bell. These parts may be of any suitable construction, it sing understood that to charge the furnace per proper.

' the bell is lowered to allow the load resting on 'it'ahd on the hopper- O to slide'd'ownwardly and. outwardly on the bell surface,

In the interior of the furnace in position to receive the charge when the bell is lowered is located our shield, comprising a series of fse gn ents These segments abut each it known that we, SAMUEL K. Hirinand ipe J surrounding the furnace near the other at their edges to make 'a completesleeve within the furnace. The wall is recessed, as indicated by a, sufficiently to receive the segments, so that their inner surface is flush with the inner surface of the wall. The segments may be provided near their upper edges at their outer sides with lugse, which are bolted to brackets F set into the brick work. The outer face of these brackets may-be riveted to the jacket B, as illustrated With this construction, it will be seen that the shield is very securely held in place. At the same time, its interior pro-'- .vides a smooth surface on which the charge satisfactory operation to the furnace, as well as to increase the life thereof, doing away with the repairrequired where the charge constantly breaks away the brick wall;

In order to prevent the heat of the furnace from gradually burning out our shield, we may, if desired, water cool thesame. This we accomplish by embedding in each segso ment, which is preferably a steel casting, a coil or convolution of water, pipe. lSuch .pipe, which is shown herein designated H, is

preferably continuous throughout each segment, passing back and forthin substan" tially parallel reaches, as shown.- It is to be understood that thewater entersatone edge of the segment and, after circulating throu h it asses out through theexit pipe near t e otder edge, the entranceand exit pipes passing through the wall of the'furnace to the outside where they-may be connected with the supply in any suitable manner. As shown, for example, there is a main entrance ower ends of the shield and e 'an'ain exit pipe J surrounding it'near the upper ends Other means of conveying water to and from the shield maybe employed, as desired.

7 Having thus desciib d our invention, we claim: 1. In ablast furnace, thecombination of a wall,a shell surrounding the Wall, a metal shield adjacent. to the interior surface of the wall nearthe upper part thereof, and means for en porting the shieldfrom the shell.

2. 1% a blast fdrnacathecombination of a wall, a shell u on the exterior. thereof, a metal shield a jacent to the wall near the upper partthereof and in the interior of the =11) furnace, and brackets secured to the shell -Wall, a shell surrounding and engaging the shield to support the same.

3. In a blast furnace, the combination of a the Wall, a metal shield adj &cent to the Wall near the top thereof and in. the interior of the furnace, brackets secured to the shell and extending through recesses in the wall of the furnace,

being segmental, brackets secured to the outer shell and extending through the'wall of the furnace, the brackets being secured at their inner ends to adjacent segments of the shield at their points of abutment, whereby the shield is supported.

In testimony whereof, We hereunto affix our signatures in the presence of two Witthe said. brackets at their inner ends being nesses. secured to the shield to support the same. SAMUEL K; HIN E. I

",4. In a blast furnace, the combination of a WILLIAM R. PHIBBS. wall, a shell surrounding the Well, a metal Vitnesses:

shield set into the Wall near the top thereof and in the interior of the furnace, said shield THos. PRITCHARD, KIRTLAN'D M. FIToH:

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