US827502A

US827502A - Apparatus for conveying and cooling ore.

Info

Publication number: US827502A
Application number: US29172305A
Authority: US
Inventors: Jeannette L Campbell; Henry F Campbell
Original assignee: Individual
Current assignee: Individual
Priority date: 1905-12-14
Filing date: 1905-12-14
Publication date: 1906-07-31
Anticipated expiration: 1923-07-31

Description

N0 827,502. PATENTED JULY 31 H. F. CAMPBELL, DECD.

J. L. CAMPBELL, LXLGUTRIX. APPARATUS FOR CONVEYING AND COOLING ORE. APPLIGATIN FILED Diso. 14. 1905.

QAM w INVENTD Www-5.555

TED STATES PATENT FFT l JEANNETTE' L. CAMPBELL, 'or MELROSE MASSACHUSETTS, EXECUraiX or HENRYAF. CAMPBELL, DECEASED.4

APPARATUS FOR CONVEYING AND COOLING ORE.

ferruginous ore and the like directly from the furnace to elevated bins and to cool the same 'to a predetermined degree While in transit, so

that the ore may at the learliest possible moment be'ready for treatment by a mag-` netic separator.

The mventlon consists, primarily, of a conlductor and bloweror fan which forces/therein through a nozzle al current of air, the conductor having a contraction in its diameter' less than the diameter of the\said nozzle and located beyond the same..

' The invention also consists incertain features oi-construction, which are more speciically hereinafter described and claimed.

The inventor and others have described a complete apparatus of similar character in an.

plication :filed December 11, 1903, Serial 184,846, reference to which is hereby made for a full descri tion of the apparatus to which the invention relates, as in the drawings have been shown only such portions fand modifications thereof as are neces- -sary to illustrate the particular invention herein described and claimed.

portion of the conductor and one of the water-jackets.'

Referring to the drawings, is a receivinghopper of any convenient shape and of any suitable material. v i

' 11 represents metal covers hinged at 54 to the brackets 55, which are cast on the hopper.

Specification of Letters Patent.

Application led December 14, 1905. Serial No. 291.723.

Patented .1' u1y 31, 1906.

At the throat of the hopper is an openin having a horizontal metal plate 68, iitted an adapted to slide therein to regulate the flow of the material from the hopper.

. 13 is a conductor consisting of a metal pipe of suitable diameter and composed of sections bolted together or secured in any Wellknown manner. The casting 57 of the conductor 13 may be the ordinary isection, but preferably is a curved portion of pipe commonly called a ooseneck and has a branchl cast integral t erewith into which is inserted and tightly fits the nozzle 31 of the blower 14. This nozzle extends beyond the throat of the hop er 10 into the conductor 13, so as to avoi the tendency of the airblast to cause the ore to be forced back out of the hopper. Atl the point 44 beyond the mouth of the nozzle 31 the conductor is contracted to a diameter less than the diameter .of the nozzle, the conductor gradually eX- panding both before and after said contraction to the general diameter ofthe conductor and assumin the form of a double truncated cone. By ecreasing the diameter of the conductor in this way the full'efect of the airblast is used in the best manner to produce a suction which overcomes any'tenden'cy of the 'dust and fumes of the ore by reaction to es-D cape back-through the hopper.

28 is a supplypipe for cold water for the purpose of in]ect1n water directly into the cated contents of t e ore' at 59. t.

60 is a nozzle having perforations 27 therein for the urpose of causing a spray of water to be disc arged into the ore.

' 59 is a branch of the conductor 13 and is screw-threaded on the inside toreceive the screw-threaded end of the nozzle 60.

The pipe 28 is provided with the cock 29,

having an index-pointer and a scale 61 toindicate the degree of opening of the pipe 28.

In Fig. 2 is shown in detail one of the waterjackets, of which there ma be anydesired number and which surroun and inclose portions .of the conductor 13. 17 and 21 are nuts which constitute the heads of the water-jacket 14 and are tted to the screwthread upon the outside of the conductor 13. They are connected to the water-jacket`14 by means of the rings 16 and 20, which have internal screw threads fitting the screwthreads upon the heads 17 21 and u on the ends of the water-jacket 14. 19 an 23 are the purpose of flanges upon the conductor for j, uniting two sections of the conductor.

` is sufficient.

lock-nuts between Which and the heads of the Water-jacket are suitable packings 18 and 22, Which' serve to form Water-tight joints. 24 is a supply-pipe, and 25 is a Waste ipe for the Water-jacket 14. The 'Water-coc 26 (shown in Fig. 2) is for the purpose of regulating the lsupply of Water to the Water-jacket.

32 and 33 are screw-threaded collars or nuts iitting the external screw-thread of the conductor13. These nuts 32 land 33 serve The said nuts are bolted to ether in the ordinary manner of joining the of pipe. It is necessary to em loy the said nuts instead lof hanged ends of t e pi e in order that they may be. removed toa low the head 17 and the lock-nut 19 to be first aplied to the conductor. 34 and 35 are simiar screw-threaded collars or nuts vused for the same purpose as 32 and 33.

The method of operation of the apparatus when used for conveying and cooling ore isas follows: The speed of the fan or blower 14 is regulated so as to'create a blast of air of.

sufficient force to carryxthe-ore throughthe conductor. Ordinarily'a four-ounce current The covers 11 areopened soas to allow the admission of a streaml of ore of sufficient volume to keep the hopper practically full. The ore in a pulverized and heated state is then delivered into the ho er from the furnace The ore descen 1s om the hop er and enters the conductor 13 in the path o the air-blast, by which it is carried to the'dust chambers and bins or whatever receptacle is used at the up er or discharge end of the conductor. s' the' ore passesthe point where the pi e 28 dischar es into theconduetor Water in t e form of a e spray is mingled with the ore. The flow is regulated by the cock 29 and gage 30. It is unnecessary to employla spray, as the Water comin in contact with the hot ore is almost imme iately converted into steam and'is carried along with the ore paliticles, air, and` With special reference to ores, it is not to be understood that the invention is to. be limited to this class of material; but there are also to be 'included-all ,pulverized materials susceptible of being conducted and elevated in the manner described.

What is claimed, and desired to be secured by Letters Patent, is*

1. In an apparatus for conveying ore and like materials, the combination of a conductor, means for discharging an airblast.

anges of two sections* ductor having a contraction in the diameter less than the diameter of said nozzle and at a point beyond Where the material is discharged i-nto the same, and said conductor being expanded immediately beyond said contraction.

2. j In an apparatus for conveying ore and like materials, the combination of a conductor, means for discharging an air blast through a nozzle into said conductor, means for discharging the material into said conductorat a point beyond where the air-blast is admitted, said conductor havinga contraction in its diameter less than the diameter of the said nozzle and at a point beyondwhere the material is discharged into said conductor, and said conductor being expanded immediately beyond said contraction.

3. In an apparatus for conveying ore and like'materials, the combination ofac'onductor provided Withia gooseneck at the receiving end, a hopper arranged to discharge therein, an-ozzleentering`v said goioseneclgy means for discharging an air-blast into said conduct'or through said nozzle, said conductor havinga contraction in its diameter less than the diameter of said nozzle and at a ointbeyond Where the air-blast is discharge therein, and

said conductor being expanded` inmediately beyond said contraction.

4. In anapparatus for conveying and cooling ore, a conductorymeans for dlscharging an air-blast through a nozzle into Saidi conduetor, meansv for discharging the-material into said conductor ata point .beyondwhere the air-blast is admitted, said conductor having a contraction in its diameter lessthan the diameter of said nozzle, and at a point beyond Where the material is discharged into said conductor, and said conductor being expanded immediately beyond .said contraction, combined with units each consisting .cfa lcentral conductor, a jacket inclosing the same, means for causing a circulation of water :through said jacket, said central conductor having its ends provided withcouplin s, said jacket consisting of a 'cylinder an circular nuts forming. heads thereof connected together by annular screw-threaded rings.

5. In an apparatusfor oonveyin and `Cooling ore a conductor provided Wit a gooseneck at the receiving end, a hopper arranged to .discharge therein,- a nozzle entering said gooseneck, 'means for dischargin an airblast into said conductor through said nozzle, said conductor .havingfa contraction in its diameter less than the diameter of said nozzle and at a oint beyond where the air-blast is discharged) therein, and said conductor being expanded immediately beyond said contraction, combined with units each consisting of a central conductor, a jacket inclosing the same, means for causing a circulation of IOO v lings, and said jacket consisting of a cylinder and circularnuts forming heads thereof connected together by annular screw-threaded rings.

6. In an apparatus for conveying ore and like materials, the combination of a conductor,means for discharging an air-blast through a nozzle into said conductor, means for discharging material into said conductor andinto the path of said air-blast, said conductor having a contraction in its diameter less than the diameter` of said nozzle and at a point beyond Where the material is discharged into the same, and said conductor being expanded immediately beyond said contraction, combined with a feed-pipe discharging Water into said conductor and means for re ulating and registering the supply of Water t erein.

7. In an apparatus for' conveying ore and like materials, the combination of a conductor,means for discharging an air-blast through a nozzle into said conductor, means for discharging material into said conductor and into the path of said air-blast, said conductor having a contraction in its diameter less than thediameter of said nozzle and at a point beyond Where the material is discharged into the same, and said conductor being expanded immediately beyond said contraction, combined with a feed-pipe discharging Water into said conductor, said feed-pipe being provided with a cock and gage for regulating and registering the iiow of Water through the same.

8. In an apparatus 'for conveying and cooling ore, a conductor, means for discharging an air-blast through a nozzle into said conductor, means for discharging the material into said conductor at a point beyond Where the air-blast is admitted, said conductor having a contraction in itsdiameter less than the diameter of said nozzle, and at a pointbeyond Where the material is discharged into said conductor, and said conductor being eX- panded immediately beyond said contraction, combined with a Water-jacket surround-4 ing said conductor, means for causing a circulation of Water through said jacket, said jacket consisting .of a cylinder and circular nuts forming the heads thereof connected together by annular screw-threaded rings; a feed-pipe discharging Water into said conductor, and means for regulating and registering the supply of Water therein.

In testimony whereof I have hereunto set my hand, in presence of two subscribing Witnesses, this 13th day of December, 1905.

LIEANNET'IE L. CAMPBELL, Eecutm of Henry F. Campbell, deceased.

Witnesses:

EVERETT N; CURTIS. ELMER L. BRIGGS.