US473741A - Jens hansen - Google Patents

Jens hansen Download PDF

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US473741A
US473741A US473741DA US473741A US 473741 A US473741 A US 473741A US 473741D A US473741D A US 473741DA US 473741 A US473741 A US 473741A
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tube
air
furnace
shavings
smelting
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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C21B5/003—Injection of pulverulent coal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other

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  • the apparatus forming the subject of my invention and represented in the accompanying drawing presses the shavings through an aperture in the side of the smelting-furnace opposite the smelting-compartment, and the introduction is done in such a manner that the shavings shall not be thrown back to the apparatus by the blast, nor can the apparatus be blown down by the furnace, as has happened hitherto when attempts have been made to smelt this kind of material.
  • A represents a cylindrically-shaped case, which is cast together with the stand A, and has also a funnel A", which is cast upon it.
  • A represents a support, which is supported from the furnace-wall and carries both the stand and the other apparatus.
  • an inclined screw 13 firmly fixed on a tube D, which serves as an axle to it, and has its bearing in a socket E, which is screwed firmly onto the stand.
  • the outermost end of the tube D is placed in such a connection ,with a stationary tube F that it can rotate independently thereof, and the tube F has, as the drawing shows, a bend that leads to the furnace, where it debouches in an air-chamber G, which is walled into the furnace-wall 5.
  • On the tube D is also placed a large cogwheel II, which engages with a smaller cogwheel I on the short axle K, which is carried by the stand A.
  • the axle is provided with a crank-arm, by which motion may be imparted to it.
  • the shavings which are thrown into the funnel A" are by the inclined screw B carried through the room 0 into the smeltingcompartment a of the furnace. Contemporary with this a strong aircurrent is led through the tube M into the air-chamber G. The latter surrounds the case A, which by that means is protected against the heat of the furnace and the furnace-wall. From the air-chamber a current of air is passing through the tube F and comes from this into the tube D, from the opposite end of which a powerful current of air is carried through the compartment 0 into the smeltin g-compartment a.
  • the air-current to the air-chamber G has thus the double object to keep the case A cool and to prevent a counter-blast arising from the smelting-compartment against the apparatus, by which the shavings might be thrown back.
  • 0 is a flue from the air-chamber to the smeltbig-compartment.
  • a stand provided with suitable supports and having a cylindrical case provided with a supply-hopper and opening into the furnace, a hollow tube revolubly mounted within the case and having a spiral wing, an air-pipe communicating with said tube, a bee ring for said tube, and a hollow connection between the said tube and the air-chamber, substan tially as set forth.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

(No Model.)
J. HANSEN. APPARATUS FOR SMELTING CAST IRONBORINGS, TURNINGS, AND SHAVINGS.
WITNESSES INVENTOR A TTOHN E Y8 UNITED PATENT OFFICE.
J ENS HANSEN, OF HELSINGOR, DENMARK.
APPARATUS FOR SMELTING CAST-IRON BORINGS, TURNINGS, AND SHAVINGS.
SPECIFICATION forming part of Letters Patent No. 473,741, dated April 26, 1892.
Application filed October 4, 1889. Serial No. 326,008. (No model.) Patented in Switzerland January 18, 1890, No. 1,887.
To all whom it may concern.-
Be it known that 'I, J ENS HANSEN, a subject of the King of Denmark, anda citizen of Denmark, residing at Helsingor, Sjoelland, Denmark, have invented certain new and'useful Improvements in Apparatus for the Smelting of Cast-Iron Borin gs, Turnin gs, and Shavings, (patented in Switzerland January 18, 1890,'No. 1',887;) andI do declare the followin to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing, and to the letters of reference marked thereon, which form a part of this specification.
For the smelting of cast-iron shavings there has hitherto, so far as I am aware, not been any practically applicable apparatus which might be used with advantage, and the said refuse has therefore been valueless.
The apparatus forming the subject of my invention and represented in the accompanying drawing, presses the shavings through an aperture in the side of the smelting-furnace opposite the smelting-compartment, and the introduction is done in such a manner that the shavings shall not be thrown back to the apparatus by the blast, nor can the apparatus be blown down by the furnace, as has happened hitherto when attempts have been made to smelt this kind of material.
The accompanying drawing, which forms a part of this specification, illustrates my invention by showing one of my improved apparatus in central vertical section, partly in elevation, in connection with the smeltingfurnace, of which a piece of wall S, opposite to the smeltingcompartment a, is shown.
A represents a cylindrically-shaped case, which is cast together with the stand A, and has also a funnel A", which is cast upon it.
B represents a support, which is supported from the furnace-wall and carries both the stand and the other apparatus. In the case is placed an inclined screw 13, firmly fixed on a tube D, which serves as an axle to it, and has its bearing in a socket E, which is screwed firmly onto the stand. The outermost end of the tube D is placed in such a connection ,with a stationary tube F that it can rotate independently thereof, and the tube F has, as the drawing shows, a bend that leads to the furnace, where it debouches in an air-chamber G, which is walled into the furnace-wall 5. On the tube D is also placed a large cogwheel II, which engages with a smaller cogwheel I on the short axle K, which is carried by the stand A. The axle is provided with a crank-arm, by which motion may be imparted to it.
The shavings which are thrown into the funnel A" are by the inclined screw B carried through the room 0 into the smeltingcompartment a of the furnace. Contemporary with this a strong aircurrent is led through the tube M into the air-chamber G. The latter surrounds the case A, which by that means is protected against the heat of the furnace and the furnace-wall. From the air-chamber a current of air is passing through the tube F and comes from this into the tube D, from the opposite end of which a powerful current of air is carried through the compartment 0 into the smeltin g-compartment a. The air-current to the air-chamber G has thus the double object to keep the case A cool and to prevent a counter-blast arising from the smelting-compartment against the apparatus, by which the shavings might be thrown back. 0 is a flue from the air-chamber to the smeltbig-compartment.
Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is
In a smelting apparatus, the combination of the furnace, provided with an air-chamber,
a stand provided with suitable supports and having a cylindrical case provided with a supply-hopper and opening into the furnace, a hollow tube revolubly mounted within the case and having a spiral wing, an air-pipe communicating with said tube, a bee ring for said tube, and a hollow connection between the said tube and the air-chamber, substan tially as set forth.
In testimony whereof I affix my signature in presence of two witnesses.
JENS HANSEN.
Witnesses:
A. G. SINDHART, A. LARSEN.
US473741D Jens hansen Expired - Lifetime US473741A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2556467A (en) * 1946-07-23 1951-06-12 Emhart Mfg Co Method of charging melting tanks with glass batch and apparatus therefor
US2624565A (en) * 1949-06-24 1953-01-06 Nat Steel Corp Scrap melting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2556467A (en) * 1946-07-23 1951-06-12 Emhart Mfg Co Method of charging melting tanks with glass batch and apparatus therefor
US2624565A (en) * 1949-06-24 1953-01-06 Nat Steel Corp Scrap melting

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