US111288A - Atid blast heating - Google Patents

Description

GAS GENERATING AND vBLAST 'HEATING APPARATUS FOR MBTALLURGIGY URPOSBS'.

ND OTHER P 1 *Patented Jan. 24, 187.1"

Maw/XW.. 4

To `.all 'whom it may concern:

of the same or like construction .TMES'nWHELPLEY ANDJAGOBJ. s'ronER,v oF BosToN,-nAssAcHUsETrs.

.lnrnoyenrnr iN'eAs-QENERAT'ING'AND Busi-HEATING APPARAT-usro METALLuRGlc AND Specification forming part of Letters Patent No.. l l ,28, dated January 24,1871,

B e it known that. welhams D. WHELPILEY' and JACOB'J. STGRER, of Boston, inthe county oiSuft'olk and State of `Massachusett s, have" invented anew and useful Improvenientuin Gas-Generatiug and Heating Apparatus tand'. we hereby declare the following to be affull and exact description of lthe same, reference being had to the accompanying drawing, which fol-insa part of this specification. fi;-

Figure l is a cross-section and elevation the line Y and plan lview and horizontal'sectiou online X X, and Fig. 3 isl avertical section on line ZZof Fig. 2.

l combined gas-generator and hot-blast appara-1,; Ins, which maybe used in thelworking or manu;A facture of ores, metals, chemicals, glass, &c.,'.

for the generation of steam, audfordistille tion, evaporation, 85e'. blow-pipe, which may be economically applied to these and many other purposes, andV to reverberatory 'and other furnaces, in lieufot th'e.

present or Aordinary re-plac-zes, llt may vbe used with pulverized fuel, according to our patented methods of burning such fuel, and in that respcctis a modication and improvement on tlieinvention described 'in our Patent No. V109,785,'dated'Noyember 29,1870. In that' patent the blast-heati'n g apparatus is separate from the gas-generator,being heated by waste beat from the furnace.-

In our present invention' they are united, so that.the air which serves for the hot blast is heated in the generator.

For blast-furnaces 'where hot blast is used the air is often heated in ovens or chambers to this of ours, the air-pipes, too, being placedina like position to ours; but only the heated air is ap'- plied or utilized in the blast of the blast-furnace, not'the produetsof the combustion of' .the fuel heating the air.

Ve use and afpplynotonly thevhct air heated inpassing through the pipes by the fue-lin the generator, but also the gases formed by the combustion ot' said fuel.

By our method so little air is admitted into Y'of Fig. 3. Fig, 2is a'horizontal' The saule letters indicate like parts infall. .theiigures., Y 1;5 -The objectof the invention is to produce the generatorftbat the escaping gases are al most ble, carbonio oxide vand hydrogen-,with a min'- i'mum vof uncombined oxygen' and ,carbonic the generator at a high temperature,have the .hotlairV blast imlnediatelydirected upon Vand mingled with'th'em, and thus a blow-pipe flame a furnace of 'any'capacity','or may b`e,'accord to theV desired capacity of .a smau fu,.mwe -CUPCli-mnflie, or forge, 850, i y t onstrated that anair-blast heated t'o 500G-Fahr- Aheated stearine, will fuse'platinumv and, other vmaterials heretofore considered refractory to vPipehot-air blast and gasesor.vaporsfotfcarbon, hydrocarbon, hydrogen, or other gases, but is `a convenient means of which the gases may-be produced,

for use; but our invention includes' the use, when desirable, of pulrerized fuel in vvfiid or in modification of such blow-pipe llame.

Siemen hasstated that the gases pas'sin from his generators 4to the furnacev or lire-po through the gas-conductors lose af'largejpor tion of their heat, (about nine-tentlis, or 11000 Fahrenheit,) and that this cooling ofthe current 'of gas, inducing a Siphon action inthe conductors, is necessary to thel correct workf ing ot his apparatus.

this is incurred, but the gases escaping from the heat with the hot blast; consequently-this process is operated with much less 'expenditure of Apower-. 6,', loss of heatthan is that of Siemens, and lunch time is sarediby heating the blast, in the generator ratherathan in of a furnace.

thisA coinbined gas-generator and hot-blast apfparatus maybe such as will make itmost easy purely carbonic oxide, or," whenl desiraacid.v These'gisea'escapingtat the' outlet ot'- of 'great intensity is`creat'ed, wh'jclnes'will be seen, may' be'1nade of sufficient .volume toill lng to theifsize of the' apparatus, diminished Recentexperiments 'in Englandfliavedcim enheit, 'combined with the gas or vapor from any influence excepting the oxyllydrogen blou'- ,Onr invention vis n'ottbe combination 0f the l and economical,- a'p'paratus', by v the air-blast heated, and the two-4 combined By our arrangement no suchloss of heatiasV generator meetl and combine at their full.'

.a socalled regenerator, or by the waste heat The shape and manner of construction of of lappl ication tothe furnace, heilen-or other, purpose to which it -is desiredtto epply i t "For v some purposes and applications 1t. 1ney be Aa brick onolay lined iron cylinder, containingV be a square-or `cylimlricalpermanent ot' brick, properly strapped-..wit h usual lire-pot;I It may bellned or'construeted. with any refractory material, and thel'hotslir pipes may be setvvertically, as shown in (li-asv ing, or horizontally or -in coils, and the gasexit may be atthe most' convenient Ypointfor.

. service. Theblast'mey-be'furnished. by-fanbloWer, bellows, or anyotbersuitable apparat 'is obvious that by simpleaflju'stmentof tbesnppiy of airand fuel-an oxidizing,V new trai, or reducing ila-me may be'obtainedjat pleesnrelts value -above :all: other meth ods of obtain-L in'g and applying' beat for metallurgie-and chemical-i pnr1'ioses,and forl the beatingoitub- The gas and hot-air. jets maybelistributed "by, means. of separate tubes oriiu'em-so aste be projected at deren't pointsupou or: about the work to whichitis applied.; end' pulverized fuel, when usedin combiiiation=witb thisv apparatus, may v be projected above or .below tbe column yrf-'hot air, es' may bei'ound moetv vefficient to produce desired eii'ects.

- The following. descrip on fwiilienableany one to make and use our iuven'tiom. r

ln' the drawing, 'A is the .body of the'gas? generator, with grate-bars B and ash-'pit Gn Surrounding theg'enera'tor is 'a ledge-or wall,'

D, leaving aspace between saidledge and the walls ot' the generator-,1in which are -pleced pipes E, forvhezttingthe eirused'asfblast. The ges-generator. A is ychargedwithcoal in the. mannerI well known in generating carbonio oxide and other gases, .,Andraftorforcedblast enters theffuel through'the-'grntebwrsg The lepth'of' coal on "the gratebars -sllonliibekept 'thick-'bycliargingfthrough thefeedoor F; As so :m'='esl vthe-"coal or otherlfuelbecomes. Welll ignited', oolil'air is foroedfthrough pipes E by HE LQSS ahy tiene blast v-appamfns, attachee' et G.'

lo passing through the zpipes E the' -air' -is heated, and leaves by the hot-air'pipe, (showny in' Fig. 1,) whereit vmingles with the gas from the gas-generator, and, together or in. combi nation with it, is projected into the furnace, oupel, mue, or 'uude'rthe boiler, vo r upon the work for which lit' is intended. 'Anycinder 'that accumulates maybe removed through K,

The ga.'sas formed, passes from the generator through opening I, and the hot air through H..

Pulverizfed fueimaybe applied,when desired, through pipe P, Fig. 1, and-either above or be' low tbehot-air blast., ortbe 'apparatus may be used and applied without the pulverized fuel.

V,.Fig. 1, is 'valveV inthe hot-air pipe,'to

.regolate the llpply'offhot lair required forv work. O, 'Fi-gil, is a' bra-richtet hot-air'pipe, Y iitt/edwitb valve Q. When'Vis-elosed 'and Q opened, all the' liotair will p .out of tbe branche@- into the open air. It isobvious, then, that by'proper errangementof' the-two valves 4any desiredproportion ofi-hot airfor the 'required action of theblow-piperean be had.

:When the valve' E1is-closed,-or 'nearly=so, the pipes E woxiid bein danger of olestruction "were itsot-fortbe' branchl and; safety-*valve @which permit ai'eonstantand v'full csrrentof 4air to-passthrongh them.` v

. Hevin'gfthue desoribedfonr'inventien, @vliet we claim, and desire to secure byfleetters Petent of the UeitedrStates, is

1. The improved gas-generatorenilblestheating epparatos combined, subsmntially es, 'and for the purposes described.

- 2., v".llhe improved f gesgenerator anti blastheating apparetns,substantiallyas 'iieseribeh combined with the Mesnil-application olf-pnl- 'verizet fuel,siibstau'tiallyy as described.

the vhet -gases 'and products of combustion from an' oven usedffor heating e.A blast otvair,

-Ain combination with the-heated blast,- substantiallyjesraniiftbrthe purposes described.

. JACOB J.,STOl.tER.

1 -Witnessem y e CHARLES-M Nxoxeeson, Y. .v FRED-W. LoNofLlinr.`

3. Thentilization-or eouversion intense o'i emi/iss o. Wasn-ener..

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