US213789A - Improvement in process and apparatus for melting ores in their natural situation - Google Patents

Description

O. M. T. du MOTAY 8: E. STERN. Process and Apparatus for Melting Ores in their Natural Situation.

Nd. 213,789. Patented April 1879,

Unrrn'n SrnTEsPATnN'r O FICE,

'crrnlnn MARIE TESSIE DU 'MOTAY, on runs, FRANCE, Ann'nnwAnn,

- srnnn, or new roux, 1s. m.

mama m PBllCl-ZSS AND APPARATUS FOR mums ours in THElR carom. summon.

Specification forming part of Letters Patent n6. 218,789, dated April i, 1819; application filed November 22, 187 8.

To all whom it may concern:

' Be it known that we, Messrs. CYPBIEN MARIE Tnssrr. no MOTAY, chemist, of Boris, France, and EDWARDSTEBN, of the city and State of New York, United States of America,

have invented an Improved Process and Special Apparatus for Melting, and thus Eirtract' ing, Native Gopper, Metallic Ores, andBocks,

of which the following is a specification:

Our invention consists, first, of an improved process for melting ores on the spot; and, secend, in an improved apparatus for carrying out this process. p I

The process consists in directing against ores in. their natural situation an-intenselyhot being arranged upon a carriage, so asto be readily brought into contact or juxtaposition with the ores in their natural situation.

This process is particularly useful in the reni derin g of those masses of native copper which are too tough to be cut up by knives or blasted with powder with any economy, and which have heretofore been valueless.

- By our process these and other similar ores can be melted on'the spot, thereby avoiding the necessity of cutting or breaking them up.

. The apparatus or compound blowpipe which we have invented has for its objectto extract metals fromfusible metalliferous rock by means of fusion, such as native copper, sulphurets of copper and of iron, higher snlphurets of iron,

copper, and lead, sulphurets of lead, simple or complex, antimonial ores, &c. This blow-pipe is composed of oneor several crowns or series of piping supplied with.

a mixture of gas and air blown in the direction-of the center of fusion; It is traversed by one or several central air, gas, and coal- 1 dust pipes, thus concentrating the whole of the caloric-power of the fire upon the zone re-'- quired to be melted, and preventing the can .loric from being dispersed, owing to its being stored in the rock to be melted. Moreover,-in consequence of the injection of coaldust likewise in the direction of the-center of fusion, no oxidation can take place, either of the metals or or the sulphureted compounds to be extracted by means of fire. The coaldust may be substituted by tar, petroleum, or other hydrocarbons.

Figure lis a profile elevation, and Fig. 2a. front view, of a'portion of the blow-pipe; In order to ,explain the working of our-in vention, we haveshown in the annexed dmwi-r 1' ings an apparatus cpeted and put up an:- 1

cording to our sy The apparatus is mounted upon a tmclr,

which allows its removal to the placeot' extraction and its moving forward progressively as the rock is attacked. Upon this truck is placed the transverse wall B, which bears the piping of the compound blow-pipe. This wall or partition has also the'ohject of acting as a screen to prevent the heat engendered during the fusion from inconveniencing the men'who attend to the work.

The outer pipes, 0 6, are arranged in the form of a crown and attached to the circle of gas and air pipes shown, which pipesif are suit ably connected with the gas and air supply, and are fastened to the wall B by means of stays. They consist each of a tube, 0, inclosing two concentric tubes, d and f, forming a blow-pipe. These pipes are inclined, so as to converge their flames toward the center of fusion. They are supplied with air and gas by two annular conduits, D and F, communicating with two tubes, G and H. The conduitD -receives air 'fi'om a ventilator or blast, while F is supplied with combustible-gas from any reservoir or gasometer. V

Instead of a ,single crown, as shownin the drawings, the apparatus may possess several concentric crowns of piping.

The ventilator and the gas-reservoir are borne'by the special truck with the stationary or other engine which serves to actuate the Ventilator. 7

- Midway in this crown of blow-pipesis placed the central pipe, I, consisting of a wide conical tube, the narrow end of which facesthe rock to be melted. Its wide end is supplied with air and with the combustible used. The air is injected'by the tube J. The combustiside.

ble, which it will suppose to be coal-dust, is inclosed in a.funnel',K. arranged above the l tube, and" thebottom of which consists of a slide-valve, L, which is worked from the out- The blow-pipe thus constructed works in the manner stated above. The outer piping direct their flames toward the place in the rock requiring to be melted, where the flames meet with the air and the c'oahdus't injected by the central tube. In this mode suflicient heat, is

' obtained for melting the metallic ore, while at the same time the 'coal furnishes an element which prevents the molten metal from oxidizwe do not claim either otjthe'se inventions. I We claim as our invention 1. The process of mining and reducing copper in its natural sitnation,which consistsin directing against said copper in its natural situation areducing-flame, thereby melting and reducing said copper, and rendering it capable of removal,substantially as described.

2,. The process of mining and reducing ore is its natural situation, which consists in melting and reducing such ore by a snfliciently hot flame and of simultaneously bringing into contact with such melted ore a suflicient supply got gas rich in carbon, or of coal-dust, for the purpose of preventing the oxidation of the metal when in a state of fusion, as set forth.

3. 'The combination of a ring of compound blow-pipes surrounding a central blow-pipe,

said blow-pipes for the purpose of enabling the movement and operation of the flame from said blow pi'p'es against the copper or other ores in their natural situations, .and apparatus forreceiving the ore when melted, substantially as described.

other ore in its naturalv sitnation,;a crown or circular series .of blow-pipes surrounding a, central pipe, thereby prodncinga circular or annulus of flame surrounding for the purpose of melting the .of the central flame, and at the same time pre-; venting too. great heat of said flame, substantially as described."

' In'testimony. whereof we have signed'onr names to this specification before two subscribing witnesse's. r a G. M.- TESSIE DU MOTAY. I E. STERN. f Witnesses: Rom. M. HOOPER,

and a movable carriage or truck supporting 4. In an apparatus for melting copper or radiationor escape of the

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