US1059367A - Method of and apparatus for bessemerizing copper matte. - Google Patents

Description

H. B. JERNEE. METHOD OF AND APPARATUS FOR BESSEMERIZING COPPER MATTE APPLICATION FILED MAY 8, 1012.

Patented Apr.22, 1913.

2 SHEETS-SHEET 1.

WITNESSES Maw 7% w A Attorney COLUMBIA PLANOORAPN c0.,wA:imNu'roN, D. c

H. B. JERNEE.

METHOD OF AND APPARATUS FOR BESSEMERIZING COPPER MATTE.

APPLICATION FILED MAY 8, 1912.

1;O59,367; Patented Apr. 22, 1913.

2 HEETB-BHEET 2.

COLUMBIA PLANOGRAIH 70.. WASHINGTON, u. c.

HOWARD 113.; JERNEEI 0F IPERTH AMBOY, NEW JERSEY.

METHOD OFi AND IAPLPARATUS FORE IBESSEMERIZING COPPER MATTE.

Specification ofietters Patent.

Patented Apr. 22,1913u Application filed May 8, 1912. Serial No.695,871.

To all whom it may concern: Be it known that I, HOWARD B. a citizen of theUnited States, residing at Perth Amboy, in the county of Middlesex thelino4-- t of F ig, 3. n and State of New Jersey, have invented cer- In the practice ofmy invention, I prefertain new and useful Improvements in ably employ a converter A,vconsisting of in. Methods of and Apparatust'or Bessemerizcylindricalbody or shell, rotatably sustained ing Copper Matte, of which the following j 1n any sulta ble manner in ahorizontal posi-v is a specification. tion for axial movement to a requisite ex- 5 p This invention; relates to apparatusfor bessemerizing copper :matte.

In the customaryvpractice, the matte is treated in a converter havinga silicious lining which unites with the ironrpresent to form a slag, and which liningmust be frequently renewed. Many attempts to employ a magnesite chrome-oxid or other non corrodible lining havefailedbecause of the practice of forcing air into themetal by the use of twyers, made of \metal orlother ma- :vessel is formed a vertical airpassage 4, 3 communicating at its upper end with a wind box or air inlet 5 and at its lower end with terial. The causes of these failures are as follows: luThe lining around the twyers is disintegrated first: 2.The1 twyers, which are usually made of metal, are attacked by the slag and ina short time are eatenaway, necessitating the relining of the converter in the vicinity of thetwyersandtheirenewal of the twyers. 3. The air, inipassing through the twyers chills the adjacent wpor tions of the metal which clogs theitwyers, requiring the twyers to be continually punched to keepthem open. 4 The lining shifts from the efi'ectsof the heat, causing the twyers to breaker the liningto crack, with resultant early disintegration. 5. If the air pressure should become low, the metal flows into the twyers and hardens, forming a solid mass which cannot be punched out,

requiring removal of the clogged twyersand verter chamber, air passagesand wel1= up to 1 the substitution of newones. the normalmaxiniuln levelindicated bythe The object of the present invention is to line arr-50 in Fig, 1.

provide a=method and apparatus whereby The bottom surfaces 10 of the outer ends these objections are avoided, whereby a none; 1 of the top wall of the lining 1 are prefer I corrodible lining may be used with great ably straight or flat and extend well down advantage and efliciency and i the use of twyers dispensed with, and whereby economy of time and labor is secured and the cost of izing action:

same on theline2,-2 OfFigll. Fig. 3is I a top plan view of the converter. Fig 4: 1s a vertical transverse section of the same on;

tent, so as to permit proper delivery of the molten matte and ready; discharge l of acpumulated slags, white metalor blister cop per. The converter is providedwith a non+ corrodible lining 1, of magnesitebrick or other suitable materiaha lateral discharge spout 2,,and acentral opening 3 at its top for, the introduction of the chargeand dis charge of the gases evolved in the bessemer- At each end of the top of the converter the interior of the converter chamber 6. Branchvpipes 7 connect these wind-boxes or air inlets with an air supply pipe Sleading; from a blower or compressor, whereby blasts of air are supplied in bessemerizing the metal. As shown, the central portion ofthe;

top of the vessel rises above the plane of the:

toward the bottom wall of the lining, thus contracting the ends 11 ofthe converter chamberG, as ,ShOWIl ILnC l the air passages ends thereof,the openin 3 thus being ar i ranged above the level 0 the air inlets. A:

4t extend downthrough saidiend portions of f thetop wall and communicate with such 1105 contractedends of the chamber. From these 1 contractedends of the chamber the portions l of the top wall of the lining between the same and the well 9 slope or incline on con-1 vergent lines upwardly at a suitable angle, thus makingjthe central portion of the top of the converter substantially dome-shaped maintaining the converter in ellicient working condition considerably reduced.

In the accompanying drawings I have shown one form of converter designed: for carrying my invention a into practical effect, and inthese drawings: Figure leis a view showing the converter artlallyin side elevation and partially in ongitudinal section." Fig. 2 is a vertical transverseisectionzof the bafiles or deflectors 12 may extend on straight or curvedlines, but: are preferably jogged or stepped, as'shown, so that each will'present a series. of deflecting-surfaces to'increase its efficiency. 1, however, do not wish to be restricted to any particular shape or arrangement of thebaffles, as other forms and constructions ,of Ibaflies may be em-- ployed with equal efficiency or found preferable under some conditions.

In operation, the co-nverter'chamber 6 is filled through the'opening 3 with molten matteup to the indicated level and" air is introduced at bothends of the converter chamber through the passages 4e, forcing my: the metal from said passages down to the level of the bottom surfaces 10 of the end portions vof the top wall, the metal rising: to 'ahigher level in the well 9 and opening, 3*as a result of this-displacement. The

i blasts of air entering the converter chamber through the passages 4' thence flow through the body of metal, downinto which the air is deflected by the baffles, thus causing the burningout of the impurities in the metal,

. which impurities discharge in gaseous form through the outlet 3. By this method of and'means for introducing the air, a thorough bessemerization of the 'metal is effeoted,enabling twyers to be dispensed with,

while at the same time permitting a magnesite-brick or other non-corrodible lining to beefficie'ntly used, thus overcoming the disadvantages of and objections to the prior constructions hereinbefore mentioned. 3. As

" a result, less labor and repairs are required in operating and keeping the converter in worklng condltlonwlth economy in cost of operatlon and maintenance.

\ Iclaim:-

1. A-metallurgic converter comprising a cylindrical shell rotatably sustained, said shell having an air inlet at itstop, an outlet at its top for the generated gases, and

, shell rotatably sustained and having ,a non Icorrodible lining forming a chamber conan" inner non-corrodible liningextending on a "generally inclined'pla'ne betweensaid inlet and outlet and stepped to form a battle surface to direct the air downward through the,,body of metal. 7

"*2; A metallurgic converter comprising a cylindrical shell rotatably sustained, said shell being provided with a non-corrodible lining and having at its topan air inletand a gas outlet,the upper wall of the lining b ing arranged to form acontracted space communicating with the body ofthe shell andf'a well leading from the air inlet down into said space andsaid upper wall being,

mation ,between said contracted space and the gas outlet. 4

3. A metallurgic'converter comprising a air inlet'at the topiof each end of the shell,

and agas outlet atthe top of the center of ,the shell, the said lining being constructed to provide contracted spaces at the ends ofthe converter chamber, wells leading down: wardly fromthe air inlets to said contracted spaces, and battles between the respective contracted spaces'and the central gas outlet. '4. A metallurgic converter having anjair inlet with a well or'passage leading ,therefrom down into the converter chamber bee; :low the normal level of the metal in said well and chamber," an outlet for the gen erated gases above the plane of the lower,

end of said well or passage,and a stepped baffle surface betweensaid well orpassage and said gas outlet.

provided with a baffled roof of stepped for 1 5. A metallurgic converter having an air inlet, with a well or passage leading therefrom down into the converter chamber be low the normal level of the metal in said well and chamber, anoutlet for the generated gases above the plane of the lower end of said wellor passage, and a baflie sure face extending on an inclined plane between said well or passage and said gas outlet,

said baffle surface being of stepped forma a tion.

6. A metallurgic converter 'comprisin'gflafl cylindrical shell rotatably sustained, said shell having an inner non-corrodibleilining',

with a baffled roof, angair inlet at each end, and a gas outlet' at the center, sub;

stantially as described;

7. A metallurgic converter comprising a end, and a gas outlet at the center.

8. A, metallurgic converter comprising a tracted at each end, air inlets leading downward into-the contracted ends of the chamher, a central gas outlet at the top of the chamber, and bafilesbetween the contracted ends of the chamber and the gas outlet.

In testimony 'whereofqI affix my signa'y ture in presence of two witnesses. v;

Witnesses:

G. WEBBIPAINI, IDA E. PAINI.

,7 copies of this zpatentmaybe obtained for five cents each, by addressing the Commissioner of" Bateiits, Washington, D; G. 1 ii I F HOWARD BQJEBNEE.

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