US1051512A - Ore-reducing furnace. - Google Patents

Description

P. B. PETERSON. ORE REDUCING FURNACE.

APPLICATION FILED MAY 10, 1912.

1,051,512. Patented Jan.28,1913.

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P. E. PETERSON.

ORE REDUCING FURNACE.

APPLICATION FILED MAY 10, 1912.

Patented J an. 28, 1913.

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P. E. PETER om: REDUCING F GE.

APPLICATION FILED MAY 10I 1912.

Patented Jan. 28, 1913.

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PETER EVE-RT YETIEBSQE, Q2 BUTTE, IEGNTAEIA.

FURNACE.

Specification or letters Fatent.

'Patented Jan. 28, 1913.

Application filed May 10,1912. Serial fie. 896,491.

bow and State of Montana, have invented.

certain new and useful Improvements in Ore-Reducing Furnaces, of which the fol: lowing is a specification.

My present invention pertains to an im- 'proved furnace for the reduction of ores, and more particularly for the reduction of Zinc ores, one embodiment thereotbeing illustrated in the annexed drawings, wherein:

Figure 1 is a perspective view of the furnace; Fig. 2 a longitudinal sectional view; Fig. 3 a transverse vertical sectional view, taken on? the line lil lll of Fig. 2; and 4- a similar "iew on the line lv lV. Theniain object of my invention is to construct an apparatus which will condense the vapors, so as to produce pure metal, means being provided whereby theflow of the cooling medium (air) about the contnbes may so regulated as to ac complisb the desired result. Thus, for instance, in the treatment of zinc ores, the condenser will act upon the vapors so to produce metallic Zinc, and. prevent the formation ofjiilue powder or zinc dust.

Stated broadly, the condenser may be said to comprise a series of condensing duets througln which the vapor passes, combined with means for causing a current of air to be" passed about and around the same, the ".ir and vapor pa g in the same generai hottest portion of the. cooling medium a' temperature. the garter LlOn of movethe vapor tl'irough the condenser i t or add be ci ing chamber, the hat spe ter modify b Misting the action of the condcn A simple and etiective arrangement of an i apparatus for carrying out my invention illustrated in the annexed drawings, where-- 1 denotes the smelting retort in which the material under treatment is vaporized electric current passing between the tIOtlQ 2 situated in the. base of the retozt and an electrode extending (.lllOllfi' cover-block 1-. Electrode is made he; and material is preferably introd med therethrough. It is to he understood that any downward toward-the speltenoola form of heating apparatus may be employed, that shown being merely illustrative.

The condenser is located to one side of the retort, the upper vapor-receiving cham-. ber opening at one end, at G, into the upper portion of the retort. Said chamber is in communication with the 'upper ends of the condensing tubes 7, which extend down- "wardly and open into the spelter-receiving chamber 8. The tubes pass through a windbotr or chest 9, the exterior of the tubes being exposed. throughout substantially their entire lengtl ()penings 10 are formed in the upper portion of the chest upon each side thereof, and air trunks ii and l1. are in communication therewith, air being supplied to said trunks from blower-or blowers. Vents 12 are formed in the lower portion-f the box or chest through which. the air may escape. Suitable dampers, as 13, will be provided for controlling the flow of air through the box or chest.

The fumes and such vapors as are not condensed, pass from the spelter chamber 8 through ports oropeningsl l, into ducts 15, through which they are carried away.

The spelter may be withdrawn from the. speliencollecting and receiving chamber through a tap opening 16, while access may be had to the tubes and chamber through openings formed in the top and end wall of the condenser, which openings will be closed by suitable cliiisures 17. and 18.- Any desired to rm of clean-out door may be provided for if; ci'iamber Q.

"ilhile the tubes h e been shown as oceu yin a vertical post ion, it is not essential that they should he so arranged; they may inc and so long as they extend hey may he said to fall within is present invention. o' ')era .ion the vapors pass from the reinto the upper chamber 5, thence pass downwardly through the tubes, air at the same time being forced into the air-box, entering the upper part through openings and iiligilfifliig directly upon the upper porins oi the tubes, which parts are the hotthe vapors while in their hottest nought intocontact with that por- -ie tubes which are subjected to the The apors pass downwardly lie tubes and the cooling air likewise iownwardly in contact with the outer The temperature of portions of the tubes, finally passing out of the trunk or chest through openings 12. the tubes is thereby regulated and controlled so that the vapors are condensed and the spelter or metallic zinc gathers in the spelter chamber 8, from whence it is withdrawn from time to time. The cooling medium and the vapors thus travel in the same general direction, an arrangement which has proven highly effective. The collection of the hot spelter in the chamber beneath the discharge end of the tubes likewise assist in the proper operation of the condenser.

Having thus described my invention, what I claim is:

1. In a condenser, the combination of a plurality of passages in communication with the exit of a retort, said passages extending in a downward direction; and means forapplying a cooling medium to the exterior of sad passages, said medium passing in the same general directlon about said passages as" the vapors which pass therethrough,wh ereby the hottest portion of the passages will be subjected to the cooling medium while the latter is at its lowest temperature. v

2. A condenser, comprising in combination a chamber opening into the upper portion of a retort and adapted to receive vaors therefrom; a plurality of tubes extendmg downwardly from said chamber; a spelter chamber located beneath said tubes; and means forcausing a current of, air to flow around said tubes in a downward di rec tion, whereby the upper portion of the tubes into which the hot vapors are introduced will be subjected to the influence of the 0001'- est air. I

3. A condenser, comprising in combination a chamber in communication with a retort and adapted to receive the vapors passing therefrom; an air-box or chest located be low said chamber; a series of tubes extending downwardly from said chamber and throng the chest; a spelter-receiving chamber located beneath said tubes and into. which they discharge; means for forcing air into the upper portion of the chest and into contact with the upper portion of-the tubes; exit openings located in the lower portion of said chest through which the 8.11 may escape; and fume conduits extending from the spelter-reoeiving chamber. 4:- A condenser, comprising in combination a downwardly-extending passage or conduit 'communicatin at its upper end with a retort from Wlich it receives the vapors to be condensed; a spelter chamber into which said conduit discharges; and means for applying a cooling medium to the exterior of said conduit, said medium while coolest first contacting with the uppermost portion .of the conduit and thence passing in the same general direction 'about the exterior of said conduit as the vapors take in passing through said conduit.

In testimony whereof I have name tothis specification in the two subscribing witnesses.

PETER EVERT PETERSON. Witnesses:

WALTER E. ELLSWORTH, EDWARD B. HOWELL.

signed my presence of

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