US812083A - Smelting-furnace. - Google Patents

Description

PATENTED FEB. a, 1906. A. RPARTRIDGE. sMI-JLTING FURNACE. APPLIOATIDH FILED 0OT.28.19G4.

'a'ilitizezi i bied sid fievafian cf the 511105??? ii;

a Let-tars P ing wheeis 9.

ambia can be g a? paiciriiifi er abject a? my iiz' ef the E1221 7 ed 0 head: fh

5 .aiinn, &: i Ga n 1 such apgrara gmnying drawing re i 13 a fertacai seen and air-heaiing nwmsi 1' tidn tn Saki exlmusting, rain a ing mean: i "41' i having a2: m

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tame, s0 Lha length iii b? iii film 7 cumivnscr, gm means of m'eai-ii waste and leys 28 29. A belt from pulley 28 to a pulley 31 drives the shaft 32 of the exhaust-fan.

belt from ulley 29 to a pulle 33 drives the shaft 34 0' the ian-blower t is my intention to run the exhaust at a considerably higher speed than the blower, and I have in the drawings shown the belt-pulleys in such proportions as to produce that result. lhis is because it is essential to successful smelting that the gases be removed with the utmost celerity ynd hence I have produced the main part of the draft by means of the exhaustfan, and while the fun-blower undoubtedly assists the draft its principal purpose is to sup )ly for combustion a large volume of air at low pressure and in heated condition, for as the pipe 23, which leads from the fanblower, surrounds the outlet-pipe 17, which carries the intensely-hot products of combustion, the fresh air is heated and enters the space 5 at a high temperature. in this space it becomes still hotter and is immediately drawn through. the pipes 16 and into the air box, whence it enters the smelter in the desired heated condition in large volume and under low n'essure.

Where l ii h oxidation is required, as in making steel, 1. leave the space between the crucible and smelter entirely open within the air-box but under some circumstances, in smelting lead or sulfid ores, when low oxidation is requisite I have provided means for obstructing and breaking up the supply of oxygen atits entrance to the smelter The very simple device desi ned by me for this 36 and 37.

Having thus fully described my invention,

What 1 claim as new, and desire to secure by Letters Patent, is-

In combination with a smelter, having a double wall near its upper end forming a hot airspace, an outlet-pipe communicating with the interior of the star an inlet-pipe concentric therewith and communicating with the hot-air space, an exhaust-fan in connection with the outlet-pipe, and a itllhlDlUWPl in con net-Lion with the inlebpl )e.

In testimony whereoi l. have allixml my signature, in presence of two witnesses, this 18th day of August, 1904.

ALLEN Rt PA RTE l DGE. Witnesses L. W. Selim, GEO. 'i. KNOX.

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