US1448565A - Apparatus for casting and cooling moldings - Google Patents

Description

A. MOET-rsu APPARATUS FOR CASTING AND OLING MOLDINGS Filed May 1, 1922 [nvenlor 65M iorneys Patented Mar. 13, 1923.,

mettait? ARNOLD Monr'rnni, or enna wincrnn'riinn, swimannniinn.

" APPARATUS FOR CASTING ANDl COOLING BIOLDINGS.

Application filed May 1,' 19272. 'Serial No. 557,637.

To @ZZ colto-m. t may concern.' f

Be it lrnown that LAinNoLn lvlon'rinnr, a citizenot` Switzerland, residing at and whose post-office address is Ober lWinterthur, Ro-

merstrasse 21, Switzerland, have invented certain new and useful Improvements in Ap-f paratus for Casting and Cooling liioldings, for which l have iiled application in Germany May 8, 1918, Czechoslovakia March 13,

Merch 23, 1922, Y France March 29, 1922, ot which the following is a specification. Y

lt has already been endeavoured in dii.-

ferent ways to utilize the heat availablein forming and cooling' hot substances, as for instance blast furnace slags, pigs and the like, for technical purposes, tor instance, i'or the generation of steam.

veyed through a space below the boiler, into which space a continuous current of fresh air enters at a point near the entering p ort for the moulds, which will absorb heat from said moulds and transfer such heat.to the bottom of the boiler and the walls of the boiler-tubes. The force of the current of air and the heating oi the boiler can be controlled by means of a slide arranged in front of the chimney.

Thus only a flow of air took place', which after heating practically went to waste, and loss of heat was caused on the one part, while on the other side the castings were cooled down too fast in consequence ot the continuous admission of fresh cool air. But especially lump-slag must be cooled slowly, otherwise -it will crumble and tear up or become useless by decomposition. Moreover, through the continuous admission of fresh air oxidation was experienced for vinstance in the case of cast pig.

In order to avoid these drawbacks the present invention provides for the castings consisting of molten slag or red-hot metal and so on to be closed up in a chamber, in which a gaseous agent is circulated by means of a blower or other suitable device. The gaseous agent thus is not only employed for a single passage through said chamber, but the same particles oi" the said agentare again and again utilized for cooling and heating through the continuous circulation, while neither fresh air is admitted to nor gaseous agent drawn from the chamber.

Sweden March 18, 1922, Englandv Belgium Marchv 26, 1922,.

In those instances the moulds are con- Circulation can blower, .c

apable be effected by means of a of being regulated,-so that culation may be adapted to the requiren'ients ot' the steam generator or the varying number oit castings ied.

In the drawing a inode the device for ci the present of construction oi? carrying the subject mattei' invention into practice ,is illustrated, in which the device, and

a section F ig. 1 is a verticalcross-section through taken on `line i lI-H of The hotliquid mass carried by means of a ladle-car t from the furnace is conveyed by means ot a distributing` arrangement Z) to the tilting chain device and the said of a driving' device tion of the-arrows and which moulds -moulds c carried by an endless of well known construction, moulds are` conducted. by means not shown in the directhrough heating flues d, are tilted by means of a tilting device which is also not shown or described when leaving .the lower boiler tubes. hot mass that it gro after tiltin pigs dropp Whil e passing through the boiler the will transfer owing to radiation and conduction so whence said pigs of an elev receptacle 71,.

main until cooled are transporte veyor I over t low said is as follows. pass through a chamber elevator through gases then pass boiler c, the front chute.

t, and u the fines ws stiff and leaves g in the shape of solid red-hot ing into an inclined chute f, from much heat to the boiler, the moulds will pass into the cups ator, conveying them to a storing Here the cast pigs will r down and after that they d by means of the belt-conhe chute 7c into carriages be- The circulation of the gas rom the blower Z the gases conduit to the bottom of the p through the spaces bepigs in the chamber. The through a'conduit to the shaft and down the` same to and Z of the boiler e. The

upwardly to the rear of the and through the tubes thereof to of the chamber in which the boiler is arranged where the gases then pass around the boiler ber, and through an opening at the rear between the said chamber and the chamber in which the boiler c to the rear of vthe chamis arranged. From the chamber in which the boiler e is arranged, the gases pass by blower.

Thus the way of a conduit to the air is circulated through y shown all spaces can loe an l endless closedfconduit including the storage receptaclelh, shaft for the conveyo-r g, flues al of the lower boiler, fire tubes of the upper and from the fan., yflhrough"suitable.closing devices of kusual construction,I and not shut air-tight.'

theblower is started 'andl ,the spacesare all closed' the neutral gases contained 1n said "tothe boiler and cool down manner it is possible toftranster' the vthe goods to be cooledtothe boiler in an'v spaces and formed from the air originally present, fare lforced throughthe boiler in the direction of the arrows and pass'over the goods to be cooled, whereby `they will alo- Vsorlo lheat from the latter and cool them,

and the gases Will again transfer their heat again.

heat of economic manner. Thepigs bottommost in the' storing receptacle are cooledffirst, so that Pigs' said receptacle will .always deliver the cooled most. Thelolovver is equipped vWith a controlling slide o-r trap and with .a de- "vice vfor y.regulating the number offrevolu-4 tions, order `to regulate the 4amount of heat transferred to -the `boiler by `accelerat- /ingor-,decreasing the speed of circulation of the heat-hearing* v4agent in such 'a manner,

' :tliat'the generation of steam can he reguheat-'accumulator.` i z s It will be evident that the mechanism rshown at e and boiler' and the ducts leading'to ln thissignature in presence lated as desired. The

storing receptacle 7L 1s of such dimensions,

y e constitutes a heat eX- changer, the heat from the heated airheing taken up loy` the Water,;the air being cooled, and being returned to be again heated.

In an apparatus of the the combination With a closed conduit which includes a heat-exchanger and a storage receptacle,

heat-exchanger,

throughithe closed' conduit, and means rfor continuously circulating `ali-e at*transferring medium` Within Vthe closed conduit, first Ithroughihestorage receptacle and then over character specified,

means for conducting highly heat-- red material through the means for conveying the material'irom'ithe heat-exchanger to the place of lstorage "so that itacts as a

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