US932493A - Furnace-port-cooling means. - Google Patents

Description

E. PARKS. FURNACE PORT UOOLING MEANS. .APPLIOA'IION PIILED MIAR. 25,1909.

' Patented Aug. 31, 1909 Q/vbbmaowowwmmtom/ nkfiParks rief/"e13 2 SHEETSSHEET 1.

F. E. PARKS: FURNACE PORT COOLING MEANS.

APPUQATION FILED MAR 25. 1009.

Patented Aug. 31, 190s.

2 SHEETS-SHEET 2.

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To all whom it mayconewt:

UNITED STATES PATENT, OFFICE.

FRANK PARKS, 0F PUEBLO, COLORADO.

FbRNAGE-PORT-GOOLING MEANS.

,Speciiication of Iietters Patent. Patented Aug. 31, 1909.

'Apnlieaiion filed March 25, 1909. sesame. 485,841.,

-Be it known that I, FRANK E. Burns, a

citizen. of the United States, residing .at'

Pueblo, in the county of Pueblo andState of Colorado, have invented certain new an'd useful Improvements in Furnace-Port-Cooling Means,.of which the following is a specifica tion.

My invention relates to means. for cooling the arches and maintaining the gas ports of metallurgical'furnaces, and is an improvement u on the construction shown in a rior atent 0. 896,937, granted jointly to A.

euel and" myself. In addition to the arch cooling means disclosed in said former pat ent, my present invention provides a Watercooled frame for the inner endof the gasort and effectually prevents any cutting bac at the inner end of the port, where it is particularly important that-the shape and dimensions of the port opening should be main-;

tained. l

The invention will be understood from the following description in connection with the accompanying drawings, in which- Figure 1 is a longitudinal section of one end of an ordinary open hearth furnace, showing the manner of applying my invention; Fig. 2 is an end view of the arch structure showing the water-supply and discharge connections in elevation; Fig; 3 is a crosssection on the line 33, showingthewatercooled frame at the inner port opening; Fig. 4 is a vertical longitudinal section on the line 44 of Fig. 3; and Fig. is a horizontal cross-section on the line 55 of Fig. 4.

The furnace 1 is provided'witlr'the usual gas ports 2, leading from the slag pockets or regenerators into the furnace. The arch 10f 40" the ports is construeted pf silica brick or other suitable refractghry" m terial and is cooled in the manner descri ed in said prior patent, by means of a plurality of pi es 5, ex tending longitudinally directlfa ove the arch and embedded in a covering of silicasand, magnesite, or other refractory material, which is tamped up to'the' required thickness over the areh'bricks, whereby the pipes are protected from the flame of the furnace and at the same time by their juxtaposition With the port walls serve to cool and'maintain intact the refractory material of the port struttu're.

Inmv present invention, each e termi-.

nates in a hollow, rectangular meta block 6,

which may be a bronze casting, the pipe being preferably screw-threaded therein, as

- shown in Fig; 4. The outer blocks "on either tutinga metalwater-cooled frame for the ort openingyas shown in Fig. 3. --This eature of my invention is important since of the port openings always the same, and

of the factthat the oint of combustion remains fixed. It the continuouswater-cooledv 'rameat the tortion due to the cutting back action which usually occurs at this place. The outer end'of each pipe 6 is provided with a T-fitting -7, having ashort discharge pipe 8, which empties into a trough 10, having a sewer connection 12. Within each pipe 5 is a smaller pipefl14, having its 0 en inner end leading into the terminal bloc 6, and its outer end connected to a supply pipe trolled by a valve or cook 16.

In order to insure a complete circulation of Water through all parts of the long side blocks 6, partitions 17, alternating from either end rovide a tortuous channel length wise of the lock, thewater being led into the inner compartment as shown in Fig. 4. It will be noted that the incoming cold water is thus discharged at the inner ends of the pipes the arch andat the sides of the port opening where the heat is most intense, and that in its return or discharge. it passes through the pipes 5, lyin directly over and in contact with the brie arch of the gas port, thereby protecting the samefrom the deterioration ed therewith.

inventi0n, I

port arch and with theside'blocks c0nstiinsures uniformity of working by reason be a parent that 15, the flow through each pipe being con 14, into the hollow terminal metal blocks overit pnovides a means for maintaining the size mouth or inner end of the port where the heat I is most intense, effectually prevents any diswhich results from the high temperature of frame constitutin 'nally of the structure and fractory material.

2. In a regenerative-furnace, a port -extending within the furnace, and means for maintaining the port-structure, comprising a water-cooledframe having a plurality of independent chambers in the port-structure adjacent the inner end thereof, and a fluid-ciric'gulating conduit connected with each chamer.

8. In a regenerative-furnace, a port extending Within the furnace, and means for maintaining the port-structure, comprising a water-cooled frame having a plurality of independent chambers in the ort-structure adjacent the inner end thereo and a fluidncirculating conduit connected with each chamber, said conduits arran ed longitudiem bedded in re 4. In a regenerative-furnace having a port provided with refractory .walls extending within the furnace, a water-cooled metal frame constitutingside j ambs'for the port at the inner end thereof.

furnace, a water-cooled metal frame constituting a portionof theinner end of the port,

and a skew-back upon either side-of the port'- arch.

8. In a regenerative-furnace having a port provided with refractory walls extending within the furnace, a self-supporting arch of refractory material, and a water-cooled metal, arch in! contact withthe upper side of the port-arch at the inner end thereof. v.

9. A water-cooled port for regenerative furnaces, comprisin itself-supporting arch of refractory materia hollow metal blocks overlying the arch at the inner end thereof and forming an arch thereover, a plurality of cooling pipes arranged in close contact with the upper side of the arch and each terminating within one of said hollow blocks, and an independent fluid supply ipe passing through each cooling pipe an arranged to discharge fluid withinthe hollow block at the inner end thereof.

10. A watelecooled port for regenerative furnaces, comprising a self-supporting arch of refractory material, hollow metal blocks overlying the arch at the inner end thereof and forming an ar'ch thereover, 'the' end blocks being extended to formskew-backs for the port-arch and side j ambs for the port, a plura ity of cooling pipes arranged in close contact with the upper side of the arch. and

each terminating within one of said hollow blocks, and an independent fluid-supply pipe passing through each cooling pipe and are ranged to discharge fluid within the hollow,

block at the inner end thereof.

In testimony whereof I aflix my signature, in presence of two witnesses. FRANK E. PARKS. Witnesses: l

- 'JAs. H ROBINSON, FRED DARRoen.

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