US895519A - Furnace for effecting fusion for refining. - Google Patents

Description

APPLIOATIOK mum nov. 19, 150m.

EiTE-NTED AUG. 11; 1908;

gnnma-gnnnr 1. v

No; 895,519. PATENTED AUG. 11, 1908. v 515 I E. A. 0. VIEL.

FURNACE I'OR'EFPECTING FUSION FOR REFINING.-" I

APPLICATION rmmnsromm.1901.v I i zsnzrs-snzm 'EMILIEN ALPHONSE OMER vIEL, 0-1:. PARIS, Fairies.

FURNACE FOR EFFECTING rvsron' ron BEFINING.

Specification of Letters ease.

Apflicadou filed November 19,1507. semi No. 402,882.

To all. whom i t m (11/ concern:

Be it known that l, Eniunx ALPHOXSE OMER Vi EL, citizeiiof the Re )ublic oi France, residing at 9 Rue Pillet-ll'ill, Paris, France, have invented a new and useful Improved l lurnaeo for lClYect-ing Fusion for Refining, of which the following is a specification.

The present invention has for its object an im irovcd furnace for eil'ecting fusion or for rt-huiiig.

The furnace is formed by the temporary or permanent cmiibiiiation or juxta-position.of two independent elements; a crucible of suitable form either fixed, or capable of being rotated or tipped, and having the usual orilices for charging and discharging, and in addition one or more orifices for the admission of an electric are produced outside thereof by the second element of the furnace. The are produced externally is blown into the interiorof the oppositely situated crucible by a suitable blowing contrivance, preferably by ele'ctro-magnets of variable position and inclination.

()no form ofconstruction of the invention is as a representative example shown on the annexed drawings, in which Figure 1 is a sectional longitudinal elevatioii: Fig. .2 is a partiaLend elevation. Fi 3 is a plan and :Fig. 4 shows diagrammatr ically a modified arrangement.

The furnace comprises a crucible g lined with refractory i'uii-tcrial (lime and an oxid of the metal to be refined). Ihis crucible preferably in the form of a drum is inclosed in a metallic casing it provided with a toothed wheel 0, and a grooved ring 1 with which two rotatable spheres engage. forming tipping supports carried between two bearings 1, themselves sup )orted by standards 8 on a carriage 1. his latter carries also a toothed wheel 12 gearing with the wheel 0, and mounted on a shaft 6, to which is secured a driving pulley u.

'lhe crucible has two orifices m and 7: for charging and discharging. The'side orifice m, owing to the iiiobility of the carriage I mounted on the rails 'v, is adapted to be brought into proximity with the fixed contrivance, adapted to produce an electric are. This latter contrivance comprises two electrodes (i a of which the supports 0 can each slidein a guide (1 carried on an insulatin framework (e e), the. advance or withdrawn of the supportsb iug ell'ected by means of a screw to operated by a crank 11:. The electrodes, whose position, inclination, and dis= tance apart are regulated according to thev purpose and as desired can, while in use, he broughtnearer to or withdrawn further from the orifice. m. The are which springs between them will be blown, through the oriiice 'm to the interior of the crucible, by means of an electm-magnetic contrivance ofknown construction comprising for example for the employment of a continuous current a core of lio1se-shoe shape "composed of nonmagnetic material, on one of the branches of which is mounted a solenoid b, of which one of the extremities is connected to a rheostat, and the other to a current supply. Air electro-iragnet, for the employment of an alternating current, will have t ie ordinary necessary modifications;

The core of the electro-magnetic blower 15 arranged to be cooled by a stream of water 2,

to avoid the resistance created by heat-in The rheostat allows of regulation at will of the power of the arc. By rotating the crucible 9 by means of the transmission gear utho, or by inclining it on its su porting rollers j, the point of impactof the are blown from the exterior can be varied during the operation, and the molten mass can thus bestirred. The blowin of the are produced externally causes a drai t of atmospheric air towards the'interior of the crucible, and this natural current of aircan be reinforced if do sired, by a forced draft produced by a ventilabor.

As shown diagrammaticall in Fig. 4, a

crucible open at the top coul be employed,

and the external are arranged above this opening, the are being then directed towards the interior by the electro-niagnetic blowing contrivance. The crucible would comprise two side orifices 1, 2, for the, inlet of air and outlet of gases-of combustion.

As has been said above in the apparatus described which is really an electric Bessemer COHVQItQT, the mounting of the independent externsl electrodes .will vary according to the form and use of the oppositely situated crucible, in 83111803803 the electrodes being inclined as shown inl ig. 1 and in others rertfio'al as shown in Fig. 4.

I claim:'

1. In a furnace of the combination with a suitably orificed crucible, of means external to the, furnace and crucible for producing an electric are adapted to be blown into said crucible. I

Patented Aug. 11. 1908.

the character'described,

2. In a furnace of the character described, the combination ith a suitably orificed cruciblc, of means for producing an electric are arranged externally to the furnace and crucible, and means for blowing the are through the orifices into the crucible;

3; In a furnace of the character described, the combination with a suitably orificed crucible, of means external thereto for producing an electric are adapted to be blown into said crucible, and means for varying the positions of said crucible and said are producing means relatively to each other.

4. In a furnace of the character desccibcd, the combination with a suitably oritieed erucible, of means for rotating and tilting the same, and means external to the crucible for producing an electric are adapted to be blown into the crucible.

5. In a furnace of the character described, the combination with a suitably oriliced crucible, of means for rotating and tilting the same, means external to the crucible for producing an electric arc, and means for blowing the electric are through the orifices into the crucible.

6. In a furnace of the character described,

the combination with a suitably oriiiced cru cible, of means external thereto for producing an are adapted to be blown into the cruciclination and distance apart of said elec-' trodes.

8. In a furnace of the character described,-

the combination with a suitably orificed crucible, of means external thereto for producing an electric are adapted to be blown intothe crucible, and means for regulating at will the power of the are produced by said are producing means. r

In testimony whereof I have signed my name to this specification in the presence of."

two subscribing witnesses.

l'llllldllil Ab'lllOhSl-l Glli'llR Vlllh.

Witnesses: I

HENRI Momma, DEAN B. Mason.-

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