US986792A - Blast-furnace. - Google Patents

Description

2 SHEETS-SHEET 1.

Patented Mal'. 14, 1911.

F. J. ZIPPLER.

BLAST PURNACE.

APPLICATION FILED MAR. 7, 1910.

F. J. ZIPPLER.

BLAST FURNAGE.

APPLICATION FILED MAB. '1, 1910.

Patented Mar. 14, 1911.

2 SHEETS-SHEET 2.

FRANCIS J'. ZIPPLER, 0FAVALON,`IP`ENNSYLVANIA.

BLAST-FURNAGE.

i Specification of Letters Patent.

Applicatn led March 7, 1910. Serial No. 547,661.

To all whom it may concern:

Be it known that I, FRANCIS J. ZIPPLER, a resident of Avalon, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Blast-Furnaces; and I do hereby declare the following to be a full, clear, and exact description thereof. A

My invention relates to blast furnaces, and has special reference to the bosh of such furnaces.

The object of my invention is to provide a cheap, simple and efficient form of a bosh for a blast furnace in which the burning out of the same is reduced to. a minimum, will v provide for an increased output by such furnace, and will enable a reduction'of the fuel consumption therein.

To these ends my lnvention consists, generally stated, in the novel arrangement, construction and combination of parts, as hereinafter more particularly set forth and described and particularly pointed out in the claims.

To enable others skilled in the art to which myinvention appertains to construct and use my improved blast furnace, I will describe the same more lfully, referring to the accompanying drawing, in which- Figure 1 is a vertical section of the lower part of va blast furnace embodying my invention. Fig. 2 is a cross-section of the same on the line 2 2, Fig. 1, looking in the direction ofthe arrow. Fig. 3 is an inverted plan view of one of the segments employed informing the inwardly extending water-jacket. Fig. 4 is an outer face view of the same. Fig. 5 is a top plan view of one of the segments employed in forming the twyer boxes. Fig. 6 is an outer face view of the same.

Like symbols of reference herein indicateV likeparts inneach of the gures of the drawlngs.

As illustrated in the drawings, 1 represents the upper portion and 2 the bosh of the blast-furnace A, which bosh is provided with the lining or wall 3 havin the inwardly tapered portion3 extending from the straight vertical portion 4 of the wall 4 in said upper portion, and such linings areformed of theusual tire-brick construction. The `lower'end of the inwardly tapered wall portion 3 of the bosh-wall 3 is flared or tapered outwardly on its inner face, as at' 5,"in

' order tolform the projecting portion 5 in said Wall, while the lower-portion of said ared portion connects with a straight vertical portion 3 in saidwall and such flared portion and vertical portion are formed of the usual lire-brick construction.

Fittingunder the vertical portion 3. of the bosh-wall 3 is the hollow water jacket 6,

lwhich is formed of segmental sections 6, and

preferably of castv metal, such as steel, while such jacket has the inner faces 7 on its sections lared outwardly from the inner face of said vertical portion, to form a projecting portion 5 in said wall by said portion 3 and such jacket is provided with the hollow flange portion 8 extending outwardly from their outer faces 7 at the upper ends of such sections and beyond the outer face of such vertical portion.

Fitting under the jacket 6 is the main twyer jacket portion 9, which rests on the lower vert-ical portion 3@ of the bosh-wall 3, and is formed of the segmental sections 9 preferably .of cast metal, such as steel. The sections of the twyer portion 9 have the upper and lower4 sides 0f the same formed hollow, as at 10 and 11, andbetween such sides and at the ends of such sections are the vertical L-shaped hollow walls 12. These walls 12 are adapted to abut against each other on each end of the twyer sections 9 so as to form the pockets 13 between such ends and the main twyers 14 between such walls on each of said sections. The inner faces of thesides 10 and 11 andwalls 12 on the twyer sections 9 are in line with the lower side ofthe .outwardly flared faces 7 Awith the outer faces 7 on said sections 6,

While the outer portion of the side 11 eX-' tends beyond the side 10 and walls 11, so as to form the flange orprojecting hollow portion 11 thereon, and the annular a1r cham- Patented Mar. 14, 1911.-

ber 15 betweenA the portion 11 and the i flange portion 8 on the sections 6 by thecas- A,

ing 16 fitting against-said portions.

Extending eXterio-rly around the bosh E2 of the furnace A is the'bustleor main air pipe 17,. which is connected 1n the usual manner to the usual supply englne, and has vthe pipes 18 leading therefrom".into the.

twyer chamber 'l5 at a point inline with the pockets 13 between theI twyers14. Pipes 19 also lead fromthe pipes 18. into an annularl auxiliary air chamber 20 formed in the upper' within the wall portions 3 and 3 of the same, and the usual casing 23 surrounds such portions, while the usual casing 24 surrounds portion 4L of the upper wall if, which wall extends beyond said bosh in the ordinary manner as at 4, and is Supported by the columns 25.-

The water for-the jacket 6' and its fl-ange 8 enters at one end of the sections 6 through the inlet pipe 26 from any source of supply,

and passes out through the outlet pipe 27 at the other end of such sections and from the flange 8 thereon. The water for the twyer portion 9 enters centrally of the lower side 11 on the sections 9 and through the projecting portion 11 thereon from the inlet pipe 2,8 connected to a source of'supply and passes out from said twyer portion through the outlet pipe 29 leading centrally from the upper side 10 on said sections.

When it is desired to operate my improved blast furnace A to melt the materials therein a portion of the blastbf air will pass from the main pipe 17 through the pipes 18 into the annular air chamber 15 formed by the ackets 6 and 9, and thence into the pockets 13 formed by the walls 12, where such air will be deflected by such walls, so that it will pass around the same and then pass through the twyers 14: into the furnace and below the projecting port-ion therein formed yby the flared faces 7 on said jacket 6. At the same time a portion of the blast of air from the main pipe- 17 will pass from the pipes 18 -into the pipes 19, and thence into the annular air chamber 20 in the wall portion 3, so that it can then enter the twyers 21 and be projected downward therefrom and into the furnace below the projecting portion 5 formed by the flared wall 5 on the wall 3 by the inclined portions 21 on said twyers. uring this operation of the furnace Av the water is circulated in the ordinary manner in the bosh-plates 22 in thel wall portions 3 and 3, and water is also circulated around the sides 10 and 11 and walls 12 of the twyer jacket 9 by the pipes 28 and 29, as well as aroundthe jacket 6 and flange 8V thereon by the'V pipes 26 and 27.

It will thus be seen that by my improved blast furnace the large air chamber for the lower or main-twyers will provide. for a large twyer area, so that a large volume of air can be placed in said chamber, which will equalize the-blast, and thereby form an even pressure of the blast as it passes through each and everyone of such twyers into the furnace, while the upper or auxiliary twyers will also be provided with such a chamber to provide for such twyers working along the same lines and with the same result. By the use of the upper twyers in connection with the lower twyers the furnace will be prevented from scaolding, and lwill also enable such furnace to economize in fuel and make an increased output therefrom. The construction of the bosh will also enable the walls of the same to be com'- pletely and thoroughly protected, which will prevent the burning'out of said walls and the twyers within the same.

It will also be evident that much thinner walls can be used in the bosh of the furnace, which will thereby cheapen the cost of materials and maintenance of such bosh, and will thus enable them to be easier and more quickly repaired or renewed, when necessary.

It will further be obvious that my improved construction can be applied to furnaces other than the ordinary blast type, while various other modiications and changes in the design and construction of my improved blast furnace may be resorted to, without departing from the spirit of the invention, or sacrificing any of its advantages.

What l claim as my invention and desire i to secure by Letters Patent. is-

1. A furnace having its lining formed with a water jacket therein, water jacketed air twyers in said lining below said jacket and opening into the furnace, and anl outer annular air chamber within and around said jacket andtwyers for communicating with said twyers.

2. A furnace l having its lining formed with a water jacket' therein, water jacketed air twyers in said lining below said jacket and opening into the furnace, and an outer annular air chamber around said jacket and twyers and formed partly by said jacket and twyers for communicating with said twyers.

3. A furnace having its lining .formed with a water jacket therein having an outer iange portion thereon, water jacketed air twyers in said lining below said jacket and opening into the furnace, said twyers having an outer flange -portion thereon, and an chamber around said jacket and `twyers and formed partly by said jacketand twyersfor communicating with said twyers.

5. A furnace having its lining formed With an inwardly projecting portion, a Water jacket in said lining below said p0rtion having a downwardly and outwardly flared inner face and an outer flange portion thereon, Water jacketed air twyers in said lining below said jacket and opening into the furnace, said twyers having an outer flange portion thereon, and an outer'annular air chamber around said jacket and tWyers and formed by the flange portions on FRANCIS J. ZiPPL'ERl Witnesses: 'v

J. L. TREFALLER, Jr., J. N. COOKE.

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