US3799369A - Double chamber charging device for a shaft - Google Patents

Double chamber charging device for a shaft Download PDF

Info

Publication number
US3799369A
US3799369A US00147593A US14759371A US3799369A US 3799369 A US3799369 A US 3799369A US 00147593 A US00147593 A US 00147593A US 14759371 A US14759371 A US 14759371A US 3799369 A US3799369 A US 3799369A
Authority
US
United States
Prior art keywords
hopper
charging
shaft
chamber
charging device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00147593A
Other languages
English (en)
Inventor
R Mahr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Paul Wurth SA
Original Assignee
Anciens Etablissements Paul Wurth SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anciens Etablissements Paul Wurth SA filed Critical Anciens Etablissements Paul Wurth SA
Application granted granted Critical
Publication of US3799369A publication Critical patent/US3799369A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/18—Bell-and-hopper arrangements

Definitions

  • the present invention relates to a charging device for a shaft furnace and is particularly applicable to blast furnace operating at a high'top pressure.
  • Shaft furnaces particularly blast furnaces
  • a device for the distribution and dispersal of the raw materials for charging which is normally a hopper open at its upper end and two charging bells.
  • the smaller of these two bells is situated at the lower end of the distributor hopper and serves as a base part for the hopper, while the larger bell, situated at a lower level, controls the release of the burden into the furnace.
  • tributor hopper of which the base part is constituted by the smaller bell, a gastight casing, having at its upper end the necessary orifices to allow the raw materials to pass into the hopper, with these orifices being further provided with sealing devices to ensure the gastightness of the casing.
  • the object of the present invention is to provide a double chamber charging device for a shaft furnace ensuring'a satisfactory sealing of the upper chamber.
  • the present invention provides a charging devicefor a shaft furnace, comprising an upper chamber and a lower chamber, the lower chamber being defined between two charging bells suspended onlongitudinally movable shafts, the'upper chamber containing a'rotatable hopper, in which means forrotating the hopper are mounted wholly within the upper chamber.
  • the device controlling the rotation of the distributor system may comprise an antigyratory device,forming part of a'shaft carrying the distributor hopper and destined to give the necessary support to prevent a gyration of the distributor hopper and a motor system ensuring rotation by means of an appropriate transmission.
  • An advantageous variation of the device in accordance with the invention comprises two motors which are symmetrically arranged with respect to the rotational axis of the hopper'thereby balancing the stresses to which the device is subjected.
  • FIG. 1 is a vertical section through a charging device on the upper end of a shaft furnace, illustrating two positions of the upper bell;
  • FIG. 2 is a view taken along line A-A of FIG. 1, showing the means for rotating the hopper.
  • FIG. 1 which are not to scale, show a distributor hopper 1 fitted in a manner described and claimed in the above application, with a guiding device 2 enabling it to move vertically and a centrally driven rotation device 3.
  • the distributor hopper l rests by its own weight on a base part 4, which tapers upwards, and serves as a wear-resistant protection cone for a bell 5 referred to as a small bell.
  • a larger bell 6 referred to as the large bell is arranged in the usual manner, as to define a gastight chamber 9 between the two bells 5, 6.
  • the wear cone 4 and the two charging bells 5,6 are mounted on shafts which are lowered and raised from above the furnace.
  • a gastight casing 7 surrounds the distributor hopper '1; this casing 7 rests and is fixed in a gastight manner on an upper ring-shaped part 8 of the chamber 9 situated above the large hell 6 and is closed at its lower end by the small bell 5. It has at its upper end inlet orifices l0, fitted with sealing devices '1 1, for the purpose of ensuring thegastightness of the casing 7 and a gastight cover 12, arranged around the suspension shafts of the bells and communicating with the gastight chamber enclosing the hopper l. The sealing of the system at the place where these shafts pass through the upper wall of longitudinal movement.
  • the device 14 carries two electric motors 16 of the armored type driving by means of a transmission hollow suspension shaft 17 of the wear -cone 4.
  • a transmission hollow suspension shaft 17 of the wear -cone 4 When the main suspension shaft 15 is raised or lowered, the rotating system which is fixed to this shaft also moves, taking with it the suspension shaft 17 of the wear cone 4, to which it can also impart continuous or intermittent rotarymovement.
  • the antigyratory device 14, on which the motors 16 are mounted, is a framework fixed to the longitudinally movable shaft by a sleeve 18.
  • Two arms 19a, 19b extend from the sleeve 18 and at their free ends are connected to two bars 20a, 201). These two bars are coupled to two further bars 21a, 21b, respectively, by couplings 22a, 22b respectively.
  • a horizontal support 23 extends between the lower ends of the bars 21a, 21b, and carries the two motors 16, which are symmetrically arranged with respect to the central shafts.
  • the antigyratory device 14 connects the motors 16 to the non-rotatable shaft 15 so that they can rotate the shaft 17.
  • a charging device for a shaft furnance including means defining an upper chamber and a lower chamber, a rotatable hopper in the upper chamber, the lower chamber being defined between upper and lower charging bells, longitudinally movable shafts passing through the hopper, the charging bells being suspended on the longitudinally movable shafts a base between the hopper and the upper charging bell serving as a wear resistant member for the upper bell, said base having a configuration to close the lower part of the hopper from the rests thereon, said hopper containing a charge and preventing the charge from coming into contact with the upper chamber, and means operably related to the hopper for rotating the hopper, said rotating means being mounted wholly within the upper chamber.
  • the charging device as claimed in claim 2 in which the drive means include two motors arranged symmetrically with respect to the rotational axis of the hopper.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
US00147593A 1970-05-27 1971-05-27 Double chamber charging device for a shaft Expired - Lifetime US3799369A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU60997 1970-05-27

Publications (1)

Publication Number Publication Date
US3799369A true US3799369A (en) 1974-03-26

Family

ID=19726373

Family Applications (1)

Application Number Title Priority Date Filing Date
US00147593A Expired - Lifetime US3799369A (en) 1970-05-27 1971-05-27 Double chamber charging device for a shaft

Country Status (6)

Country Link
US (1) US3799369A (enrdf_load_stackoverflow)
BE (1) BE767438A (enrdf_load_stackoverflow)
DE (1) DE2125377A1 (enrdf_load_stackoverflow)
FR (1) FR2093682A5 (enrdf_load_stackoverflow)
GB (1) GB1313051A (enrdf_load_stackoverflow)
LU (1) LU60997A1 (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4728240A (en) * 1985-03-15 1988-03-01 Paul Wurth S.A. Charging installation for a shaft furnace
US4881869A (en) * 1986-09-26 1989-11-21 Man Gutehoffnungshuette Gmbh Furnace charging throat construction
US5411242A (en) * 1993-03-04 1995-05-02 Paul Wurth S.A. Charging device with member for regulating the flow rate
US5829968A (en) * 1993-11-23 1998-11-03 Paul Wurth S.A. Charging device for a shaft furnace

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU86335A1 (fr) * 1986-03-04 1987-11-11 Wurth Paul Sa Installation de chargement d'un four a cuve

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US955885A (en) * 1906-02-26 1910-04-26 Walter Kennedy Blast-furnace-charging apparatus.
US3302805A (en) * 1963-12-14 1967-02-07 Ishikawajima Harima Heavy Ind Materials distributor of a blast furnace
US3476374A (en) * 1967-06-06 1969-11-04 United States Steel Corp Apparatus for charging a blast furnace continuously
US3533522A (en) * 1968-03-08 1970-10-13 Demag Ag Furnace top distributor for shaft furnace,particularly for blast furnaces

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US955885A (en) * 1906-02-26 1910-04-26 Walter Kennedy Blast-furnace-charging apparatus.
US3302805A (en) * 1963-12-14 1967-02-07 Ishikawajima Harima Heavy Ind Materials distributor of a blast furnace
US3476374A (en) * 1967-06-06 1969-11-04 United States Steel Corp Apparatus for charging a blast furnace continuously
US3533522A (en) * 1968-03-08 1970-10-13 Demag Ag Furnace top distributor for shaft furnace,particularly for blast furnaces

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4728240A (en) * 1985-03-15 1988-03-01 Paul Wurth S.A. Charging installation for a shaft furnace
US4881869A (en) * 1986-09-26 1989-11-21 Man Gutehoffnungshuette Gmbh Furnace charging throat construction
US5411242A (en) * 1993-03-04 1995-05-02 Paul Wurth S.A. Charging device with member for regulating the flow rate
US5829968A (en) * 1993-11-23 1998-11-03 Paul Wurth S.A. Charging device for a shaft furnace

Also Published As

Publication number Publication date
LU60997A1 (enrdf_load_stackoverflow) 1972-03-20
FR2093682A5 (enrdf_load_stackoverflow) 1972-01-28
DE2125377A1 (de) 1971-12-09
GB1313051A (en) 1973-04-11
BE767438A (enrdf_load_stackoverflow) 1971-11-19

Similar Documents

Publication Publication Date Title
US3814403A (en) Drive for furnace charge distribution apparatus
US3693812A (en) Furnace charging apparatus
US5938432A (en) Top closing device for shaft furnaces
US4273492A (en) Charging device for shaft furnaces
US3799369A (en) Double chamber charging device for a shaft
GB2072818A (en) Distribution chute control apparatus
US3929240A (en) Shaft furnace charging process
JP2013518188A (ja) 冶金リアクター用装入装置
US2429481A (en) Sealing means for revolving distributor for charging iron blast furnaces
US20150211793A1 (en) Rotary charging device for shaft furnace
US1684800A (en) Centrifugal liquid crucible
ATE226260T1 (de) Gichtverschluss für schachtöfen
US3198623A (en) Gas sealing and continuous charging method for blast furnace
US3975575A (en) Rotatable furnace pot for smelting furnaces
US3963128A (en) Charging device for a blast-furnace
US3533522A (en) Furnace top distributor for shaft furnace,particularly for blast furnaces
US3554393A (en) Charging device for a furnace
GB1067367A (en) Improvements in or relating to shaft furnaces, particularly blast furnaces
US3606040A (en) Method of and apparatus for charging furnaces
US3633897A (en) Shaft furnace operating with relatively high gas pressures and method of charging the same
JPS57116719A (en) Swiveling chute of bell-less type furnace top charger
US3623709A (en) Apparatus for charging and for distributing charges in shaft furnace
US3137399A (en) Feed system for shaft furnaces
US955885A (en) Blast-furnace-charging apparatus.
US2718971A (en) Pressure responsive sealing devices