US3853204A - Apparatus for and methods of lining a furnace - Google Patents

Apparatus for and methods of lining a furnace Download PDF

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Publication number
US3853204A
US3853204A US00253217A US25321772A US3853204A US 3853204 A US3853204 A US 3853204A US 00253217 A US00253217 A US 00253217A US 25321772 A US25321772 A US 25321772A US 3853204 A US3853204 A US 3853204A
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United States
Prior art keywords
tower
refractory material
work platform
aperture
work
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
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US00253217A
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English (en)
Inventor
J Smith
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United States Steel Corp
Original Assignee
Steel Corp
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 Steel Corp filed Critical Steel Corp
Priority to US00253217A priority Critical patent/US3853204A/en
Priority to FR7317109A priority patent/FR2184720B1/fr
Priority to DE2323892A priority patent/DE2323892A1/de
Priority to JP48054017A priority patent/JPS4984908A/ja
Priority to GB2311873A priority patent/GB1434761A/en
Priority to JP48054020A priority patent/JPS4984910A/ja
Priority to JP48054018A priority patent/JPS4984909A/ja
Priority to CA171,355A priority patent/CA998828A/en
Priority to JP48054015A priority patent/JPS4984906A/ja
Priority to IT24121/73A priority patent/IT987466B/it
Priority to JP48054016A priority patent/JPS4984907A/ja
Priority to GB4542575A priority patent/GB1434762A/en
Priority to JP48054019A priority patent/JPS4961006A/ja
Priority to US443055A priority patent/US3927502A/en
Priority to US05/442,710 priority patent/US3955685A/en
Application granted granted Critical
Publication of US3853204A publication Critical patent/US3853204A/en
Priority to CA237,150A priority patent/CA999123A/en
Assigned to USX CORPORATION, A CORP. OF DE reassignment USX CORPORATION, A CORP. OF DE MERGER (SEE DOCUMENT FOR DETAILS). Assignors: UNITED STATES STEEL CORPORATION (MERGED INTO)
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/44—Refractory linings
    • C21C5/441—Equipment used for making or repairing linings

Definitions

  • the preferred embodiment of the apparatus has a support member secured to the furnace in registry with the bottom aperture for guiding the apparatus through the bottom aperture and such support member is provided with a tower aperture.
  • a first tower is adapted to pass through the tower aperture in the support member and is provided with a refractory material aperture.
  • Tower elevating means are on one member of the support member and the first tower, are connected to the other member of the support member and the first tower, and are operable to raise the first tower through the tower aperture in the support member.
  • a turntable is rotatable on the top of the first tower and is provided with a second refractory material aperture in registry with the refractory material aperture in the first tower.
  • a work platform is mounted on the turntable, which work platform is provided with a third refractory mate rial aperture, and is movable on the turntable form a storage position on the turntable where the work platform passes through the tower aperture in the support member, to a work position where the work platform extends beyond the turntable to enable a workman to stand on the work platform.
  • Refractorymaterial elevating means are mounted on the work platform, are engageable with the refractory material, and are operable to raise the refractory material through the refractory material aperture in the first tower, the second refractory material aperture in the turntable, and the third refractory material aperture in the work platform into alignment with the work platform so that the refractory material can be transferred to the work platform.
  • An alternative embodiment of the apparatus has a table support member secured to the furnace adjacent a top aperture of the furnace.
  • the turntable is rotatable on the table support member and is provided with work platform elevating means clearance apertures.
  • the work platform is movable through a bottom aperture in the furnace while it is in the storage position and is then further movable from the storage position to a work position where a workman may stand on the work platform.
  • the work platform is provided with a refractory material aperture.
  • Work platform elevating means are on one member of the turntable and the work platform, extend through the table support memher, and are connected to the other member of the turntable and the work platform for moving the work platform throughthe bottom aperture in the furnace to a desired work position within the furnace.
  • Refractory material elevating means extend through the table support member and are connectable to the refractory material for moving the refractory material through the refractory material aperture in the work platform so that the refractory material can be transferred from the refractory material elevating means to the work platform.
  • the preferred method of lining a furnace includes the steps of: g
  • turntable is rotatable on the top of the first tower, through a tower aperture in the support member to a desired work position within the furnace;
  • An alternative method of lining the furnace in- cludes the steps of:
  • a quality basic oxygen process (Q-BOP) furnace utilizes a bottom blown oxygen process developed recently in West Germany and in the United States.
  • Q-BOP is a trade name of Eisenwerk-Gesellschaft Maximilianshutte GmbI-l (Maxhutte) of West Germany and the assignee of the present invention.
  • the Q-BOP furnace utilizes a method of processing steel in which molten iron and other metallics are charged into the furnace. Oxygen, enveloped in a protective fluid stream, is blown through a tuyere or tuyeres located in the bottom of the furnace.
  • Powdered lime, or other furnace additions together with the oxygen are blown through the tuyere while a protective fluid, which can be natural gas, propane, fuel oil or the like, envelops the oxygen and acts as a coolant to increase both the life of the bottom of the tuyere and the furnace bottom.
  • a protective fluid which can be natural gas, propane, fuel oil or the like, envelops the oxygen and acts as a coolant to increase both the life of the bottom of the tuyere and the furnace bottom.
  • the tuyere or tuyeres in the bottom of a Q-BOP furnace are contained in a removable plug in the bottom of the furnace, which plug is removed therefrom by means of an apparatus of the type shown in US. Pat. No. 3,388,501 issued June 18, 1968, to Puhringer et al.
  • the -80? furnace is relined with a refractory material by the apparatus for and method of lining such furnaces herein disclosed.
  • a carriage 20 aligns the frame' 6 (carrying the first scaffold element 12) with the opening in the bottom ring plate 2 (FIG. 3).
  • the frame 6 is raised adjacent to and attached to the flange 4 of the lower part 3 of crucible 1 (FIG. 4).
  • the platform 18 on element 12 swings out (FIG. 5).
  • the second tubular element 13 is attached by key and slot to the first tubular element 12.
  • the elevating of the elements l2, 13 is accomplished by rack 11 on towers 12, 13 and pinion 14, 14' on collar 6 and the material by the winch l6 and rope 17 (FIG. 1).
  • a main telescoping piston raises the main (expandable) work platform 8 through the opening 3 in the converter 1. Bricks are fed through passage 9 (FIG. 5) in platform 8.
  • An auxiliary work platform 6 is mounted on supports 7 upstanding from main platform 8, has a brick opening 12 (FIG. 6) and is used to line the top portion 11 of theconverter 1 (FIG. 6).
  • a working stage 1 is inserted into the converter 2,
  • a support platform has a travel frame 2 movable on wheels 4 on the ground 5 (FIG. 1) so that a work platform 7 can be inserted into the converter 1 and elevated on telescoping lift rods 8, 9, 10, inner guides 8', 9, 10', (supported by brackets 15, 16, 17 on' top wall of the work platform 50) and lower guides 12, 13, 14.
  • An elevator 23 reciprocates by its rollers 25, 26 on telescoping outer guides 19, 20, inner guides 19', 20' and lower guides 21, 22 (FIG. 1) and through opening 27 in work platform 7 (FIG. 2).
  • a collapsible winch 28 on work platform 7 operates the elevator 22.
  • the preferred embodiment of the apparatus has a support member secured to the furnace in registry with the bottom aperture for guiding the apparatus through the bottom aperture and such support member is provided with a tower aperture.
  • a first tower is adapted to pass through the tower aperture in the support member and is provided with a refractory material aperture.
  • Tower elevating means are on one member of the support member and the first tower, are connected to the other member of the support member and the first tower, and are operable to raise the first tower through the tower aperture in the support member.
  • a turntable is rotatable on the top of the first tower and is provided with a second refractory material aperture in registry with the refractory material aperture-in the first tower.
  • a work platform is mounted on the turntable, which work platform is provided with a third refractory material aperture, and is movable on the turntable from a storage position on the turntable where the work platform passes through the tower aperture in the support member, to a work position where the work platform extends beyond the turntable to enable a workman to stand on the work platform.
  • Refractory material elevating means are mounted on the work platform, are engageable with the refractory material, and are operable to raise the refractory material through the refractory material aperture in the first tower, the second refractory material aperture in the turntable, and the third refractory material aperture in the work platform into alignment with the work platform so that the refractory material can be transferred to the work platform.
  • An alternative embodiment of the apparatus has a table support member secured to the furnace adjacent atop aperture of the furnace.
  • the turntable is rotatable on the table support member and is provided with work platform elevating means clearance apertures.
  • the work platform is movable through the bottom aperture in the furnace while it is in the storage position and is then further movable from the storage po sition to a work position where a workman may stand on the work platform.
  • the work platform is provided with a refractory material aperture.
  • Work platform elevating means are on one member of the turntable and the work platform, extend through the table support member, and are connected to the other member of the turntable and the work platform for moving the work platform through the bottom aperture in the furnace to a desired work position within the furnace.
  • Refractory material elevating means extend through the table support member and are connectable to the refractory material for moving the refractory material through the refractory material aperture in the work platform so that the refractory material can be transferred from the refractory material elevating means to the work platform.
  • the preferred method of lining a furnace includes the steps of:
  • FIG. 1 is a diagrammatic side elevational view partially in section of a preferred embodiment of the apparatus for lining a furnace and showing the furnace provided with a bottom aperture, a support member secured to the furnace in registry with the bottom aperture for guiding the apparatus through such bottom aperture and provided with a tower aperture; a first tower adapted to fit through a tower aperture in the support member and provided with a refractory material aperture, a tower elevating means on the support member and connected to the first tower and operable to raise the first tower through the tower aperture in the support member; a turntable rotatable on the top of the first tower and provided with a second refractory material aperture in registry with the refractory material aperture in the first tower; work platforms mounted on the turntable, each of which work platforms is provided with a third refractory material aperture, and is movable on the turntable from a storage position on the turntable where thework platform passes through the tower aperture in the support member, to a work position where the work platform extends beyond the turntable to enable a workman
  • FIG. 2 is a horizontal sectional view taken along the line 2-2 of FIG. 1 in the direction of the arrows and showing the work platforms mounted on the first tower, the refractory material supported by a pallet, which pallet in turn is carried by a conveyor section, the conveyor section in alignment with a conveyor means on the work platform and secured to the conveyor means by locking means and showing also the work platforms in the extended work position;
  • FIG. 3 is a horizontal sectional view taken along the line 3-3 of FIG. 1 in the direction of the arrows and showing a cross section of the first tower, the tower elevating means for raising the first tower, the pallet guide means mounted on the inside of the first tower, the tower roller guide means mounted on the support member and a ladder mounted in one corner of the interior of the first tower and surrounded by a ladder cage;
  • FIG. 4A is a fragmentary vertical sectional view taken along the line 4A4A of FIG. 1 in the direction of the arrows and showing the connecting means between the frame of the first tower and the cable of the first tower elevating means;
  • FIG. 4B is a fragmentary side elevational view taken along the line 48-48 of FIG. 4A in the direction of the arrows;
  • FIG. 5A is a horizontal sectional view taken along the line 5A-5A of FIG. 1 in the direction of the arrows and showing diagrammatically the turntable rotatable upon the first tower, and the drive means for rotating continuously the turntable at a speed of about 30 rpm;
  • FIG. B is a vertical sectional view taken along the line 5B5B of FIG. 5A in the direction of the arrows and showing the thrust bearing between the turntable and the first tower, which thrust bearing takes thrust in a vertical and horizontal direction;
  • FIG. 6 is a fragmentary side elevational view taken along the line 66 of FIG. 2 in the direction of the arrows and showing an auxiliary elevating means on one of the work platforms for elevating the refractory material (carried by a pallet) and the conveying means on the work platform for supporting the pallet and for eliminating bending by a workman to pick up the refractory material;
  • FIG. 7 is a view similar to FIG. '1 of an alternative embodiment of the apparatus showinga second tower secured to the bottom of the first tower; the tower elevating means connected to the second tower, second work platforms secured to the bottom of the second tower; an alternative embodiment of the refractory material elevating means which is operable to convey a single predetermined amount of the refractory material (such as a single brick) from the second work platforms into alignment with the first work platforms; kick off means mounted on the work platforms for removing the refractory material or single brick from the refractory material elevating means onto the work platforms; material feeding means on the work platforms movable with respect to such work platforms and for feeding the single brick, when such single brick is adjacent the work platforms to a predetermined position on one of the work platforms; wiping means on the work platforms extending into the rotary path of movement of the single brick on the material feeding means to engage and cause the single brick to transfer from the material feeding means to one of the work platforms; brick mason stands depending from the work platforms to eliminate bending of the workman to
  • FIG. 8 is a horizontal sectional view taken along the line 8-8 of FIG. 7 in the direction of the arrows and showing the work platforms; the brick mason stands depending from the work platforms, the refractory material elevating means operable to elevate a single brick from the lower or second work platforms; the kick off device; the rotatable material feeding means on the turntable; the wiper means mounted on the upper work platforms and material chutes for guiding the single brick from the wiping means onto work platforms and breaking off the material chutes adjacent the inner ends of the work platforms for clarity;
  • FIG. 9 is a fragmentary side elevational view partially in section of the lower portions of the second tower,-
  • the refractory material elevating means for conveying a single brick from the second or lower work platforms into alignment with the upper work platforms andshowing a second material feeding means connected at one end to the bottom of the refractory material elevating means and adapted to feed the single bricks to the bottom of the refractory material elevating means as the first tower and the second tower are raised by the tower elevating means;
  • FIG. 10 is a diagrammatic wiring diagram showing the controls for operating the motors for the turntable, for the tower elevating means, for a-first hoist for operating the refractory material elevating means, for an auxiliary or second hoist affixed to the building framework above tlie top aperture of the furnace; and for an indexing motor for alternatively indexing the'turntable of the apparatus and the like;
  • FIG. 11 is a view similar to FIG. 1 of another alternative embodiment of the apparatus and showing a table support member secured to the furnace adjacent the top aperture of the furnace; a turntable rotatable on the table support member and provided with work platform elevating means clearance holes or apertures; the work platforms movable through the bottom aperture in the furnace to a desired work position within the furnace; refractory material elevating means on the turntable, extending through the table support member, and connectable to the refractory material (mounted on a pallet) for moving the refractory material through the refractory material aperture in the work platform so that the refractory material can be transferred from the refractory material elevating means to the work platform;
  • FIG. 12 is a view similar to FIG. 11 of another alternative embodiment of the apparatus and showing a tower head secured to the turntable (rotatable on the table support member); a first tower secured to the tower head; a second tower connected to the lower portions of the first tower; and the work platforms vertically reciprocable on both the first tower and the secondtower; and
  • FIG. 13 is a fragmentary enlarged vertical sectional view showing the means of securing the tower head to the turntable, as by welding or the like, and the means for connecting the first tower to the tower head.
  • this invention is adapted for use in conjunction with a Q-BOP type furnace, and hence it has been so illustrated and will be so described.
  • FIG. 1 an apparatus for lining a furnace 10 (of the Q-BOP type) with an inner lining 11 (FIG. 1) of a refractory material 12, such as refractory brick or the like, is indicated generally by the reference numeral 14 (FIG. 1).
  • the apparatus 14 (FIGS. 1-6, 10) has a support member 16 (FIGS. 1, 3) secured to the furnace 10 in registry with a bottom aperture 18 (FIG. 1) for guiding the apparatus 14 through such bottom aperture 18 in the furnace 10.
  • a support member 16 is also provided with a tower aperture 20 (FIGS. 1-3).
  • This support member or collar 16 has a lower flanged ring portion 22 (FIG. 1), which portion 22 is secured through its upper flange. 24 (FIG. 1) to the bottom portions of the shell 23 (FIG. 1) of the furnace 10 as by a plurality of bolts 26 (FIG. 1).
  • the support member 16 is provided with a plurality of tower guide rollers 30 (FIGS. 1 and 3) mounted on the support member 16 by brackets 31 (FIG. 3).
  • the means utilized to define the end of the refractory lining 11 on the bottom of the furnace adjacent the bottom aperture 18 in the furnace 10 is a form means, such as a form ring 32 (FIG. 1) or the like, projecting upwardly from the upper flange 24 of the support member 16. As shown in FIGS. 1 and 3, a form means, such as a form ring 32 (FIG. 1) or the like, projecting upwardly from the upper flange 24 of the support member 16. As shown in FIGS. 1 and 3, a
  • tower elevating means 34 (FIGS. 1, 3, 4A, 4B) is mounted on the support member 16'and such support member 16 and first tower 28 are provided with registering tower locking apertures 36 (FIG. 1) for use in securing the first tower 28 to the support member or collar 16 when a second tower 280 (FIG. 1) is secured to the first tower 28 and the tower elevating means 34 is disconnected from the first tower 28 and connected to the second tower 28a as hereafter explained.
  • This first tower 28 (FIGS. 1-3, SA, 5B) is, of course, adapted to pass through the tower aperture in the support collar 16.
  • Such first tower 28 is provided'with a refractory material aperture 38 (FIG. 3).
  • first tower 28 is a generally openended box-like structure having an outer frame 40 (FIGS. l-3), suitably formed of angles secured together as by welding or the like, and is provided with a plurality of intersecting horizontal and generally zigzag plate members 42 (FIG. 1) for reinforcing each generally open face of the frame 40.
  • the means utilized to define the refractory material aperture 38 in the first tower 28, shown particularly in FIGS. 1 and 3, comprises a plurality of guides 44 (FIGS.
  • a ladder 48 (FIG. 3) is secured as by welding or the like, to the left hand end side of the outer frame 40 of the first tower 28 and such ladder 48 is surrounded by a ladder cage 50 (FIG. 3).
  • Such first tower 28 is secured to the tower elevating means 34 at 52 (FIGS. 1, 4A, 4B).
  • Such tower elevating means 34 has a plurality of motors 54 (in this case, four, FIGS. 1, 3) mounted on brackets 56 (FIG. 3) secured to the support member or collar 16.
  • Such hoists 54 each drive an individual drum 58 (FIG. 3) from which a cable 60 (FIGS. 3A, 4A, 4B) depends and is connected as shown in FIGS. 4A and 4B at the connection point 52 by means of a clevis or the like 62 (FIGS. 4A, 48) secured on the'end of the cable 60, as by welding or the like.
  • clevis 62 is secured to a lug 64 (FIGS. 4A, 43) extending from the tower frame 40 of the tower 28 by. means of a bolt 66 and nut 68.
  • control means .70 for operating the tower elevating means 34 and other operating means hereinafter described is shown in FIG. 10.
  • This control means 70 has a pair of lines L1 and L2 extending from a suitable source of voltage indicatedin FIG. 10 by the legend AC Supply to a branch line L3 extending through a relay 72, a normally open manually operated starting switch 74 and a normally closed manually operated stop switch 76.
  • the holding means utilized to maintain energization of the circuit through lines L1, L2 is a normally open holding contact C1 disposed in parallel about the normally open manually operated starting switch 74 so that when such starting switch 74 is manually closed, the relay 72 is energized and the normally open holding contact C1 is closed, thereby maintaining a closed circuit through the relay 72 from the AC source of supply.
  • the drive motor 54 for each of the hoists of the tower elevating means 34 are energized by closure of a second normally open holding contact C2 of the now energized relay 72 by the connecting line L4 which is disposed in parallel between the supply lines L1 and L2 'with respect to the branch line L3.
  • the means utilized to deenergize the drive motors 54 for the hoists of the tower elevating means 34 and the hoists 54 themselves is, of-course, the manually operated normally closed stop switch 76 which upon manual opening thereof deenergizes the control means 70 for the hoist motors 78 of the tower elevating means 34.
  • a manually operated normally closed stop switch 76 can be installed in the line L4 to deenergize the hoist motors 54 for the tower elevating means 34 without deenergizing the relay 72.
  • a turntable 80 (FIGS. 1, 2, 5A, 5B) is mounted on the top of the first tower 28 (FIG. 1) and is rotatable continuously at about 30 rpm on such tower 28 or indexable with respect to the tower 28.
  • This turntable 80 (FIGS. 1, 2, 5A, 5B) is provided with a second refractory material aperture 38a (FIGS. 1, SA, 5B) disposed in registry with the refractory material aperture 38 in the first tower 28.
  • the turntable 80 shown particularly in FIGS. 1, 5A and 5B, is rotat' able on the top of the first tower 28 by means of a thrust bearing 82 (FIG. 5B) disposed between the tower frame 40 of the first tower 28 and work platforms 84 (FIGS. 1, 2, 5B).
  • This thrust bearing 82 shown particularly in FIGS. 5A and 58 takes thrust during the operation of the apparatus 14 in both a vertical and horizontal direction.
  • Such thrust bearing 82 has an upper portion 86 (FIG. 58) on the turntable 80 adapted to recieve a plurality of roller bearings 88 (FIG. 5B) in a cavity 89 (FIG. 5B) defined by the upper portion 86 and a lower portion 90 (FIG. 5B) of the thrust bearing 82 upstanding from the tower frame 40 of the first tower 28 (FIG. 5B) and secured to the first tower 28 as by welds 91 (FIG. 5B) or the like.
  • a removable ring type plate 92 (FIG. 5B) is secured, as by bolts 66 or the like, to the upper portion 86 of the thrust bearing 82 to retain such ball bearings 88 within the cavity 89.
  • the turntable drive means 93 for'continuously rotating the turntable 80 at a relatively slow speed, such as about 30 rpm, with respect to the first tower 28 has a turntable drive motor 54a (FIGS. 5A,
  • brackets 94 (FIG. SA) on the side of the tower frame 40 of the first tower 28 and has its drive shaft 96 (FIG. 5A) provided with a rotating pinion gear 98 (FIG. 5A) engageable with a girth gear 100 (FIGS. 5A, 58) on the periphery of the turntable 8t).
  • the control means 70 has, as shown in FIG. 10, a line L5 disposed in parallel with the lines L3, L4 between the supply lines L1, L2 to energize the turntable rotating motor 54a upon closure of the normally open holding contact C3 of the relay 72 in the line L5.
  • the work platforms 84 (FIGS. 1, 2, 5B, 6) are mounted on the turntable 80 and disposed thereon in quadrential spaced relation.
  • Each work platform 84 (FIGS. 1, 2, 5B, 6) is mounted on the turntable 80 as by welds 91 (FIG. 5B)
  • FIG. 7 is provided with a third refractory material aperture 38b (FIG. 2) and is movable on the turntable 80 from a vertical storage position (not shown in FIGS. 1 and 2) where each work platform 84 passes through the tower aperture in the support member or collar 16, to a work position shown in FIGS. 1 and 2 where each work platform 84 extends beyond the turntable 80 to enable a workman (not shown) to stand on such work platform 84.
  • a third refractory material aperture 38b FIG. 2
  • Each of the work platforms 84 has an inner portion 102 (FIGS. 1, 2) extending from the turntable 80, which inner portion 102 telescopically surrounds an outer portion 104 (FIGS. 1, 2) of the work platform 84 so that such outer platform 104 may be disposed a predetermined or desired distance D (FIG. 1) from the extremities of the inner portion 102 of the work platform 84.
  • the work platform locking mean utilized to lock the inner portion 102 to the outer portion 104 of the work platform 84 may suitably comprise a plurality of registering holes 106 (FIG. 1) in both the inner portions 102 and the outer'portion 104 of such work platform 84.
  • a locking means, such as a pin 108 (FIG. 1) may be inserted into such registering holes 106 in the inner portion 102 and in the outer portion 104 of the work platform 84.
  • each work platform 84 is retracted inwardly from the original distance D to the smaller distance D (FIG. 1) with respect to the inner portion 102 of the work platform 84.
  • a work platform operating means 110 (FIG. 1) is I used to move each of the work platforms 84 from the above mentioned vertical storage position (not shown) on the turntable 84 to the work position shown in FIGS. 1, 2.
  • This work platform operating means 110 may take the'form of a hoist motor 5412 depending from a beam 112 (FIG. 1) of the building in which the furnace 10 is housed.
  • a plurality of four cables 60a (only one cable 60a being shown in FIG. 1) having hooks 114 are lowered so that each hook 114 engages the outer portion 104 of each work platform 84 and moves such work platforms 84 about the pivot 116 (FIGS. 1 and 2) when the hooks 114 and the cables 60a are elevated by the hoist 54a from the work position shown in FIG. 1 to a vertical storageposition (not shown) where such work platforms 84 are substantially perpendicular to the turntable (not shown).
  • another parallel line L6 connects the hoist motor 54b for the hoist of the work platform operating means through the normally open holding contact C4 of the relay 72 so that when such relay 72 is, of course, energized, the normally open holding contact C4 closes and the motor 54b for the hoist of the platform operating means 110 is energized.
  • a refractory material elevating means 118 (FIGS. 1, 10) is mounted on a platform head 117 (FIG. 1) the work platforms 84.
  • Such refractory material elevating means 1 18 (FIGS. 1, 10) is engageable with the refractory material 12, suitably a pile of bricks 12a (FIGS. 1, 6), mounted on a pallet 120 (FIGS. 1, 6), which pallet 120 carries a conveyor roller section 122 (FIGS. 1, 2, 6).
  • the refractory material elevating means 118 has a hoist motor 540 (FIGS. 1, 10) and utilizes a cable 60c (FIG. 1) extending from a drum 580 (FIG. 1) to a hook 114 FIG. 1).
  • the hook 114 is engageable with a plurality of cables 60c (FIG. 1) extending upwardly from the corners of the conveyor roller section 122 and gathered together to form a loop engageable with the hook 114 on the hoist cable 60c.
  • control means 70 has another parallel line L7 connecting the motor 540 for the hoist associated with the refractory material elevating means 118 to another normally open holding contact C5 of the relay 72 so that upon energization of the relay 72, the motor 540 for the refractory material elevating means 118 is energized.
  • the refractory material 112 on the pallet 120 and the conveyor roller section 122 are raised through the refractory material aperture 38 in the first tower 28, the second refractory material 38a in the turntable 80 and the third refractory material aperture 38b in the work platforms 84 so that the refractory material 12 can be transferred to an individual work platform 84 on a conveyor means 124 (FIGS. 1, 2).
  • each work platform 84 when in the extended work position shown in FIGS. 1 and 2, is provided with a conveyor means 124, such as a conveyor section 126, which conveyor section 126 (FIGS. 1, 2) is registerable with the conveyor roller section 122 on the pallet 120 when the refractory material elevating means 118 raises such refractory material 12, pallet 120 and conveyor roller section 122 to the transfer position shown in FIG. 1.
  • the conveyor locking means utilized to lock the conveyor section 126 on the work platform 84 to the conveyor roller section 122 is a door-type slide lock 128 (FIG. 2) having a slide 130 (FIG. 2) retained in a slide holder 132 (FIG.
  • FIG. 2 This locked position for transferring the pallet 120 and the refractory material 12 to a conveyor section 126 on a work platform 84 is shown in FIG. 2.
  • the pallet 120 and the refractory material 12 are rolled off the con veyor roller section 122 onto the conveyor section 126 on the individual work platform 84 to a work position on such work platform 84 thereby completing the delivery of the refractory material 12 on the pallet 120 from adjacent the third refractory material aperture 38b in the work platform 84 to the work position shown in FIG. 1.
  • the present invention contemplates the provision of guide means such as the tower guides 44 (FIGS. 1, 3) within the first tower 28 to guide the refractory material 12 through the refractory material aperture 38 in the first tower 28 (FIG. 2).
  • the tower elevating means 34 is either mounted on the support member or collar 16 as shown in FIGS. 1 and 2 or is mounted on the first tower 28 (not shown).
  • the conveyor locking means such as the door type slide lock 128 shown in FIG. 2 may be disposed on one member of the conveyor roller section 122 for carrying the pallet 120 and the conveyor section 126 to lock the other member of the conveyor roller section 122 and the conveyor section 126 to the one member.
  • Connecting means, such as the cable 60, clevis 62 and the lug 64 on the frame 40 of the first tower connects the tower elevating means 34 to the first tower 28 (FIGS. 4A, 4B).
  • auxiliary elevating means 136 may be disposed on each of the work platforms 84 for elevating the pallet 120 and the refractory material 12 carried thereby above the work platform 84 to eliminate bending of a workman (not shown) to pick up the refractory material 12.
  • the conveyor section 126 is pivotally mounted at 138 (FIG. 6) on scissored levers 140a and 14012 (pivoted on each other at 142). As shown in FIG.
  • the lower portion of the lever 140a is pivoted on the work platform 84 at 144 while the lower end of the other scissored lever 140! has its lower end portion pivotably connected at 146 to a piston 148 of a hydraulic fluid cylinder 150 secured to the work platform 84 as by welds 152-.
  • form means such as the form ring 32 or the like (FIG. 1), are provided on the support member or collar 16 and extend into the bottom aperture 18 of the furnace 10 for defining the end of the refractory lining 11 adjacent the bottom of the furnace 10.
  • tower locking means (such as the registerable locking apertures 36 in the support member or collar 16 and in the first tower 28 and the pin 54 extending through such registerable holes 36) is disposed between the support member 16 and the first tower 28 to lock the first tower 28 to the support member 16, thereby permitting removal of the connecting means, i.e., the cable 60, clevis 62, etc. (FIGS. 4A, 4B) between the tower elevating means 34 and the first tower 28 at 52, so that such connecting means may later be reconnected to the second tower 28a at 52a (FIG. 1).
  • the connecting means i.e., the cable 60, clevis 62, etc.
  • This second tower 28a (FIG. 1) is similar in construction to the first tower 28 and is provided with another refractory material aperture 380 (FIG. 1).
  • Such second tower 28a is connected to the bottom of the first tower 28 by tower connecting means, such as bolts 66 (extending through holes 37 (FIG. 1) in the two towers 28, 28a) and nuts 68 (FIG. 1) so that the refractory mate'- rial aperture 38 in the first tower 28 registers with the other refractory material aperture 380 in the second tower 28a.
  • FIGS. 4A, 4B are connected to the second tower 28a at 52a (FIG. 1).
  • the space between adjacent work platforms 84 (FIG. 2) is covered or filled by a platform section 156 (FIG. 2) thereby providing a continuous peripheral work space about the turntable 80.
  • the work platform op.- erating means (FIG. 1) is connectable to each of the four work platforms 84 for moving each of the work platforms 84 between the storage position (not shown) and the work position shown in FIGS. 1, 2.
  • the turntable 80 (FIGS. 1, 2, 5A, 58) has a unique thrust bearing 82 (FIGS. 5A, 5B) which takes the thrust of the apparatus 14 both in a vertical and a horizontal direction as shown in FIGS. 5A and 5B.
  • a series of second work platforms 84a (FIG. 7) are secured as by welds 158 (FIG. 7) or the like to the bottom of the second tower 28a for receiving the pallet s carrying the refractory material 12.
  • the refractory material elevating means 118a shown in FIG. 7 is operable to convey a single predetermined amount of the refractory material 12, such as one brick 12a (FIGS. 8, 9) from these second work platforms 84a into alignment with the first work platforms 84 on the top of the first tower 28.
  • REFRACTORY MATERIAL ELEVATING MEANS 118a (FIGS. 7-9) As shown in FIG. 7, the refractory material elevating an .1. 9 h y i 9f rrp ks 6" (FIG- 7) mounted on bearings 161 (FIG. 7) in brackets 162 (FIGS. 7, 9) extending from the frame portions 40 of the first tower 28 and the second tower 28a.
  • An endless belt or chain 164 (FIGS. 7, 8, 9) provided with spaced carriers 166 (FIGS.
  • the upper sprocket 160 of the refractory material elevating means 118a (FIG. 7) is driven by a shaft 165 (FIG. 7) extending from a motor 54d (FIGS. 7 and 10).
  • the control means 70 (FIG. 10) utilizes another parallel line L8 to connect the motor 54d for the refractory material elevating means 118a through a normally open holding contact C7 of the relay 72 between the voltage supply lines L1 and L2.
  • Kick off means 168 such as a fluid cylinder 170 (FIGS. 7 and 8) mounted as by welds 159 (FIG. 7) to the upper bracket 162 has its piston 172 (FIGS. 1, 8, 10) provided with a pusher 174 (FIGS. 7, 8, 10) for removing a single refractory brick 12a from a spaced carrier 166 on the refractory material elevating means 118a when such single brick 12a comes into alignment with the kick off means 168.
  • the control means 70 for the kick off means 168 has another parallel line L8a connecting a timer 176 (FIG. 10) through a solenoid 178 (FIG. 10) and a normally open holding contact C6 of the relay 72 and another manually operated normally closed stop switch 76 (FIG. 10).
  • the timer 170 energizes the solenoid 178 to operate a valve 180 (FIG. 10) to cause the fluid pressure in a supply line 182 (extending from a fluid source indicated by the legend From Fluid Supply) to the left hand end (as viewed in FIG.
  • the timer 176 causes retraction of the solenoid 178 thereby reversing the flow of fluid to the right hand end of the fluid cylinder 170 and causing retraction of the piston 172 and the pusher 174 carried thereby (FIG. 10).
  • MATERIAL GUIDE MEANS 184 (FIGS. 7, 8)
  • each of the work platforms 84 is provided with a material guide means, such as a telescoping or extendable chute 184 or the like for receiving the single brick 12a which has been fed by the kick-off means 168 onto a frusto conical rotatable material feeding means or table 186 (FIGS. 7 and 8).
  • a material guide means such as a telescoping or extendable chute 184 or the like for receiving the single brick 12a which has been fed by the kick-off means 168 onto a frusto conical rotatable material feeding means or table 186 (FIGS. 7 and 8).
  • This rotatable frusto conical inclined material feeding table 186 receives the single brick 12a from the carrier 166 of the refractory material elevating means 1180 (FIG. 7) due to the timed operation of the kickoff means 168 and delivers such single brick 12a down its inclined surface until the brick is transported contiguous to a wiper means 188 (FIG. 8).
  • the material feeding table 186 is mounted on the rotatable work platforms 84 on the rotatable turntable 80 and rotates or indexes, as desired, with such turntable 80.
  • Each of the wiper means 188 comprises a resilient arm 190 (FIG. 8) mounted on an inside corner of each work platform 84 at 192.
  • Each such wiper arm 190 extends into the rotary path of movement of the single refractory brick 12a on the rotatable material feeding table 186, engages the brick 12a and causes such brick 12a to transfer from the inclined surface of the material feeding table 186 onto the material chute 184 on the adjacent work platform 84 (FIG. 8).
  • auxiliary elevating means 136a of the type shown in FIG. 6 may be mounted on the second work platforms 84a secured to the bottom of the second tower 28a to elevate the refractory mate- 'rial 12 above the second work platforms 84a thereby eliminating bending of a workman (not shown) to pick up such refractory material 12.
  • a second material feeding means or conveyor 194 is shown for feeding the refractory material 12 or single bricks 12a to the bottom of the refractory material elevating means 118a (FIGS. 7 and 9).
  • the left hand sprocket 160a (FIG. 9) of the conveyor 194 is pivotably mounted on a bracket 162 (FIG. 9) upstanding from the frame 40 of the second tower 28a.
  • the right hand sprocket 160a (FIG. 9) of the conveyor 194 is pivotably mounted at 196 on a carriage 198 (FIG. 9), which carriage 198'rides by means of wheels 200 (FIG. 9) on the floor 202 of the building which houses the furnace 10.
  • a motor 54e drives the right hand sprocket 160a and hence the conveyor belt or chain 164a in the direction of the arrow shown in FIG. 9.
  • the bricks 12a fall off the end of the left hand sprocket 160a of the conveyor 194
  • the bricks 12a are deposited on a carrier 166 of the refractory material elevating means 118a and transmitted upwardly in the direction of the arrow (FIG. 9) as hereinbefore explained.
  • the control means (FIG. 10) has a line L9 connecting the motor 54e through contact C8 to switch 76a.
  • each of the work platforms 84 mounted on the turntable may be provided with a removable fold-up type brick mason stand 204 which depends below each of the work platforms 84 thereby enabling a workman (not shown) to stand on such brick mason stand 204 to eliminate bending of the workman (not shown) to pick up the refractory bricks 12a (FIGS. 7 and 8).
  • a wood scaffold 205 may be mounted on the work platforms 84 for work on the top of the furnace 10.
  • the hoist 54a (FIG. 7) can be used to move work platforms 84 between the work position (FIG. 7) and the storage position (not shown).
  • the apparatus 14 shown in FIG. 11 for lining a furnace with the innerlining 11 of the refractory material 12 has a table support member 206 (FIG. 11) secured to the furnace 10 adjacent a top aperture 208 (FIG. 11) in the furnace 10.
  • the apparatus 14 is provided with levelling means 210 (FIG. 11).
  • a plurality of levelling screws 212 are threadable into suitable threaded holes 214 in the table support member 206 and have their projecting ends 216 engageable in sockets 218 provided in brackets 220 (FIG. 1 1) upstanding from the outer shell 23 of the furnace 10.
  • the turntable 80 is rotatable on the table support member 206 in the manner described with respect to the apparatus 14 shown in FIGS. 1-6, 10 and 14 (FIGS. 7-9, 10) and such turntable 80 is provided with work platform elevating means clearance apertures 222 (FIG. 11).
  • the work platforms 84 are again movable through the bottom aperture 18in the furnace 10 while they are in the vertical storage position (shown in dotted lines in FIG. 11) and are then further movable as hereinbefore described with respect to the apparatus 14 shown in FIGS. 1-6, 10 and 14 (FIGS. 7-10) to the work position shown in solid lines in FIG. 11 to enable a workman (not shown) to stand on the work platforms 84.
  • Each of the work platforms 84 are pivotably mounted at 224 (FIG. 11) on a frame 226 (FIG. 11) of such work platform 84.
  • Supporting rods 228 (FIG. 11) are fixedly and pivotably connected at 230 (FIG. 11) to the outer end of the outer section 104 of each work platform 84 and have their lower portion pivotably and removably secured by means of a removable pin 232 to the lower portion of the frame 226 of each work platform 82.
  • each work platform 84 is provided with a refractory material aperture 38d, which aperture 38d (FIG. 11) has mounted on the walls thereof pallet guide means suitably a plurality of rollers similar to the tower guide rollers 30 shown in FIGS. 1 and 2.
  • a work platform elevating means 238 (FIG. 11) comprises a plurality of hoists driven bymotors 54f (FIGS. 10 and 11). Each hoist has its cable 60d (FIG. 11) extending through the clearance holes 222 in the table support member 206 (FIG. 11') to a connecting means 52b (FIG. 11) of the type shown in FIGS. 4A and 4B and indicated diagrammatically in FIG. 11 at After removal of the pin 232 (FIG. 11) and energization of the relay 72, closure of its normally open holding contact C9 (FIG. 10) energizes the motor 54f for the hoist of the work platform elevating means 238. This motor 54f (FIGS.
  • each work platform 84 may be mounted on either the turntable or the work platforms 84, will extend through the clearance holes 222 in the table support member 206 and may be connected to the other member of the turntable 80 and the work platforms 84 for moving the work platforms 84 (while in the storage position shown in the vertical dotted line position of FIG. 11) through the bottom aperture 18 in the furnace 10 to a desired work position within the furnace shown in the various solid line positions of FIG. 11.
  • each work platform 84 is provided with an inner portion 102 telescopically surrounding an outer portion 104, the outer portion 104 being extendable with respect to the inner portion 102.
  • a platform guide means 242 (FIG. 11) is suitably a plurality of rubber guide wheels 244 mounted by means of a shaft 246 on the end of outer portion 104 of each work platform 84.
  • Each wheel 244 is engageable in the embodiment shown in FIG. 11 with the refractory lining 11 of the furnace 10 to stabilize and center the work platforms 84 within such furnace 10 (FIG. 11).
  • the platform guide means 242 can be carried by the innerlining 11 of the furnace l0, and be engageable with the outer extremmities of the outer portion 104 of each of the work platforms 84.
  • This refractory material elevating means l18b (FIG. 11) is mounted on a bracket 248 (FIG. 11) upstanding from the turntable 80, has its cable 602 extending through a clearance hole 222 in the table support member 208 and has its hook 114 on the end of the cable 60e connected to the cables 60c extending from the conveyor roller section 122, which section 122 supports the pallet carrying the refractory material 12.
  • Such refractory material elevating means 118! has a drum 58g (FIG. 11) driven by a hoist having a motor 54g (FIG. 11).
  • the control means 70 shown in FIG. 10 utilizes a parallel line L10 for connecting the motor 54g of the refractory material elevating means 118! (FIG. 11) to a normally open holding contact C of the relay 72.
  • the lower portions of the support member 16 has guide rollers 30 disposed adjacent a work platform aperture 20 for guiding the movement of the work platforms 84 through the bottom aperuraliinthefi a e WORK PLATFORM SUPPORT MEANS (FIG. 11)
  • a work platform support means 266 may be utilized in the apparatus 14 shown in FIG. 11 and the apparatus 14 shown in FIGS. 12 and 13.
  • This work platform support means 266 bridges the bottom aperture 18 in the furnace 10 and supports the work platforms 84 (FIG. 11) or 84 (FIG. 12) during movement of the work platforms 84 and 84 between the storage positions shown in the dotted vertical position of FIG. 11 and the work position shown in solid lines in FIGS. 11 and 12.
  • This work platform support means 266 hasone or more removable plates or rods 268 which are disposable beneath the work platforms 84 or 84 (as shown in FIG. 11) and engage the bottom portions of such work platforms 84 and 84.
  • the work platform locking means for the apparatus 14 for connecting the outer portion 104 to the inner portion 102 of each work platform 84 may comprise the registering holes 106 in such sections 102, 104 and the removable pins 108.
  • Such work platform locking means secures the outer portion 104 and the inner portion 102 of each work platform 84 together in a desired predetermined length such as L or L (FIG. 11)
  • the work platform elevating means 238 may be either mounted on the table support member 206 or on the work platforms 84.
  • apparatus 14 may include the following features described with respect to the apparatus 14 shown in FIGS. 1-6, and 14 (FIGS. 7-10):
  • the conveyor means 124 i.e., the conveyor sections 106 (FIGS. 1, 2) on the work platforms 84 extending from the refractory material aperture 38d in each work platform 84 to the work position (FIG. 11) on each work platform 84 for delivering the refractory material 12 from such refractory material aperture 38d (FIG. 1 1) in the work platform 84 to the work position on the work platform 84" (FIG. 11);
  • the refractory material 12 may be carried by a pallet 120 (FIG. 11) which pallet 120 in turn is supported by a conveyor station 122, the conveyor section 122 being alignable with the conveyor means 124 to permit the transfer of the pallet 120 and the refractory material 12 from the conveyor section 122 to the conveyor means 124 on the work platform 84 as shown in FIGS. 2;
  • the kick-off means 168 may be mounted on the work platforms 84 (FIG. 11) for removing the refractory brick 12a from the refractory material elevating means 118a (FIG. 7) onto the work platfgrm 96 9: 11)
  • the material guide chute 184 (FIGS. 7 and 8) can be utilized on the work platforms 84 (FIG. 11) for guiding the refractory brick 12a from the rotatable material feeding means 186 (FIGS. 7 and 8) when the refractory brick 12a is adjacent the work platform 84 (FIG. 11);
  • form means such as the form ring 32 shown in FIG. I, may be disposed adjacent the bottom aperture 18 of the furnace 10 for defining the end of the refractory material 11 in the bottom of the furnace 10 (FIG. 11);
  • the plurality of spaced work platforms 84 may be connected by platform sections 156 (FIG. 2) to. bridge the space between the adjacent work platforms 84" (FIG. 11);
  • the second material feeding means or conveyor 194 may be connected at one end to the bottom of the refractory material elevating means 118a (FIG. 9) and adapted to feed the refractory brick 12a to the bottom of such refractory material elevating means 118a (FIG. 9) as the work platforms 84 (FIG.11) are raised by the work platform elevating means 238 (FIG. 11);
  • brick mason stands 204 shown in FIGS. 7 and 8 may depend from the work platforms 84 (FIG. 11) to eliminate bending of a workman (not shown) to pick up the refractory material or brick 12a;
  • the turntable (FIG. 11) may be a thrust bearing 82 of the type shown in FIGS. 5A, 5B and takes the thrust of the apparatus 14 (FIG. 11) in both the vertical and horizontal directions;
  • the wiping means 188 shown in FIGS. 7, 8 may be mounted on the work platforms 84 to extend into the rotary path of movement of the refractory brick 12a on the material feeding means or table 186 (FIGS. 7, 8) to engage and cause the refractory brick 12a to transfer from the material feeding table 186 to chutes 184 on the adjacent work platform 84 (FIG. 11).
  • the hoist 54a (FIG. 11) may be used to movethe work platforms 84 between the solid line work nqsitiqn a d th dot e ineswta p Position- APPARATUS 14 (FIGS. 12, 13)
  • the apparatus 14 (FIGS. 12, 13) has the table support member 206 provided with a tower aperture 20 and the turntable 80 is provided with a second tower aperture 20a.
  • a tower 28 (FIGS. 12, 13) is adapted to pass through the tower aperture 20 in the table support member 206 and the second tower aperture 20a in the turntable 80
  • the tower 28 is provided with a refractory material aperture 38f and is secured to the turntable 80 as shown in FIG. 13 as by welds 252 or the like.
  • the work platforms 84 are provided with a tower aperture 20b and are reciprocable on the outside of the tower 28
  • the tower 28 has a tower head 250 (FIGS. 12, 13.) which head 250 has its projecting upper portion secured, as by welds 252, to the turntable 80 and its lower depending portions secured by means of tower locking means 256 (FIGS. 12, 13).
  • This tower locking means 256 consists of a locking ring 258 (FIGS. 12, 13) projecting from the upper portion 254 of the tower 28 and secured to the lower portion of the tower head 250 by bolts 260 and nuts 262 (FIG. 13).
  • the work platform elevating means 238 (FIG. 12) can be mounted on either a tower elevating mounting means, such as a bracket 264 (FIG. 12), depending from the beam 212 of the building in which the furnace 10 is housed or on the tower head 250 as shown in FIG. 12.
  • the work platform elevating means 238 is then connected to the other member of the tower elevating mounting bracket 264 or to the tower 28 to elevate the work platforms 84 to a predetermined position within the furnace 10 with respect to the turntable 80
  • the work platform elevating means 238 may utilize a hoist motor 54h (FIGS. 10, 12) for a drum 58h (FIG.
  • the hoist motor 54h is mounted on the tower head 250 as shown in FIGS. 12, 13.
  • the work platform elevating means 238 may have hoist motor 54b (FIG. 12), may be similarly connected, as above described, to accomplish the elevating of the work platforms 84 on the tower 28 or to raise the work platforms 84 from the working position shown in FIG. 12 to the storage position not shown in FIG. 12.
  • the tower 28 is provided with guide means, such as the guides 44 shown in FIGS. 1 and 3 to guide the refractory material 12, the pallet 120 and if necessary, the roller section 122 beneath the pallet 120 through the refractory material apertures 38f (FIG. 12) in the tower 28 (FIG. 12) defined by the guides 44 of FIGS. 1, 3.
  • guide means such as the guides 44 shown in FIGS. 1 and 3 to guide the refractory material 12, the pallet 120 and if necessary, the roller section 122 beneath the pallet 120 through the refractory material apertures 38f (FIG. 12) in the tower 28 (FIG. 12) defined by the guides 44 of FIGS. 1, 3.
  • the work platform elevatingmeans 238 (as shown in FIG. 12) is mounted on the tower 28 Alternatively, the work platform. elevating means 238 may be mounted on the work platform 84.
  • the connecting means 520 (FIG. 12) of the type shown in FIGS. 4A
  • a second work platform (not shown in FIG. 12, but similar to the work platforms 84a, FIG. 7) may be mounted on either the bottom of the tower 28 or a second tower 28a".
  • This second tower 28a (FIG. 1) is provided with another refractory material aperture 38g and such second tower 28a is connected to the bottom of the tower 28 so that the refractory material aperture 38f in the tower 28 registers with the other refractory material aperture 38g in the second tower 28a.
  • the tower 28 and the second tower 28a may be telescopic with respect to each other.
  • each of the towers 28 and 28a are provided on their side faces with openings 270 through which the refractory material 12 and the pallet 120 can be passed for transfer to a selected work platform 84".
  • the preferred method includes the following additional steps (either alone or in combination) of: j

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
US00253217A 1972-05-15 1972-05-15 Apparatus for and methods of lining a furnace Expired - Lifetime US3853204A (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
US00253217A US3853204A (en) 1972-05-15 1972-05-15 Apparatus for and methods of lining a furnace
DE2323892A DE2323892A1 (de) 1972-05-15 1973-05-11 Vorrichtung und verfahren zur auskleidung eines ofens mit feuerfestem material
FR7317109A FR2184720B1 (ja) 1972-05-15 1973-05-11
JP48054019A JPS4961006A (ja) 1972-05-15 1973-05-15
JP48054020A JPS4984910A (ja) 1972-05-15 1973-05-15
JP48054018A JPS4984909A (ja) 1972-05-15 1973-05-15
CA171,355A CA998828A (en) 1972-05-15 1973-05-15 Apparatus for and methods of lining a furnace
JP48054015A JPS4984906A (ja) 1972-05-15 1973-05-15
JP48054017A JPS4984908A (ja) 1972-05-15 1973-05-15
JP48054016A JPS4984907A (ja) 1972-05-15 1973-05-15
GB4542575A GB1434762A (en) 1972-05-15 1973-05-15 Apparatus for and methods of lining a furnace
GB2311873A GB1434761A (en) 1972-05-15 1973-05-15 Apparatus for and methods of lining a furnace
IT24121/73A IT987466B (it) 1972-05-15 1973-05-15 Impianto e metodo per rivestire un forno
US443055A US3927502A (en) 1972-05-15 1974-02-15 Method of lining a furnace
US05/442,710 US3955685A (en) 1972-05-15 1974-02-15 Apparatus for lining a furnace
CA237,150A CA999123A (en) 1972-05-15 1975-10-07 Apparatus for and methods of lining a furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00253217A US3853204A (en) 1972-05-15 1972-05-15 Apparatus for and methods of lining a furnace

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US05/442,710 Division US3955685A (en) 1972-05-15 1974-02-15 Apparatus for lining a furnace

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US3853204A true US3853204A (en) 1974-12-10

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US00253217A Expired - Lifetime US3853204A (en) 1972-05-15 1972-05-15 Apparatus for and methods of lining a furnace

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US (1) US3853204A (ja)
JP (6) JPS4961006A (ja)
CA (1) CA998828A (ja)
DE (1) DE2323892A1 (ja)
FR (1) FR2184720B1 (ja)
GB (2) GB1434762A (ja)
IT (1) IT987466B (ja)

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Publication number Priority date Publication date Assignee Title
US5018923A (en) * 1988-11-09 1991-05-28 Paul Wurth S.A. Automated bricklaying apparatus
US20050150721A1 (en) * 2002-05-10 2005-07-14 Daio Paper Corporation Working device for inner wall surface of tower tank, and inner wall surface working method using the same
US20070074934A1 (en) * 2005-09-20 2007-04-05 Hitachi Plant Engineering & Construction Co., Ltd. Inspection scaffold of large component for boiler and building method thereof
US20160339277A1 (en) * 2015-05-19 2016-11-24 Anco Maritime Activities Ltd. Method for inspecting an inside room of a ship and/or performing works therein

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2385863A1 (fr) * 1977-03-28 1978-10-27 Dietrich & Cie De Plate-forme de travail de chariot de maconnage, notamment de convertisseur
LU86382A1 (fr) * 1986-04-01 1987-12-07 Wurth Paul Sa Installation pour briqueter la paroi interieure d'une enceinte
LU87054A1 (fr) * 1987-11-30 1989-06-14 Wurth Paul Sa Installation pour briqueter la paroi interieure d'une enceinte

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US3033389A (en) * 1960-09-26 1962-05-08 United States Steel Corp Apparatus for use in lining vessels
US3058543A (en) * 1961-03-29 1962-10-16 Clyde W Prosser Portable scaffolds
US3168163A (en) * 1962-10-15 1965-02-02 Clyde W Prosser Portable scaffolds
US3241634A (en) * 1965-02-01 1966-03-22 Clyde W Prosser Portable scaffolds
US3256956A (en) * 1963-01-31 1966-06-21 Voest Ag Device for re-lining crucibles or converters
US3259208A (en) * 1963-07-04 1966-07-05 Beteiligungsund Patentverwaltu Apparatus for lining of metallurgical furnaces, particularly converters
US3285390A (en) * 1963-12-23 1966-11-15 Voest Ag Apparatus for lining metallurgical vessels, such as converters
US3287875A (en) * 1963-10-11 1966-11-29 Nat Steel Corp Method for lining furnaces
US3298154A (en) * 1963-01-23 1967-01-17 Beteiligungs & Patentverw Gmbh Apparatus for lining converters
US3439794A (en) * 1966-12-30 1969-04-22 Republic Steel Corp Apparatus for conveying and distributing articles in a conefined region
US3517771A (en) * 1967-02-10 1970-06-30 Demag Ag Movable platform between metallurgical furnaces

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US3033389A (en) * 1960-09-26 1962-05-08 United States Steel Corp Apparatus for use in lining vessels
US3058543A (en) * 1961-03-29 1962-10-16 Clyde W Prosser Portable scaffolds
US3168163A (en) * 1962-10-15 1965-02-02 Clyde W Prosser Portable scaffolds
US3298154A (en) * 1963-01-23 1967-01-17 Beteiligungs & Patentverw Gmbh Apparatus for lining converters
US3256956A (en) * 1963-01-31 1966-06-21 Voest Ag Device for re-lining crucibles or converters
US3259208A (en) * 1963-07-04 1966-07-05 Beteiligungsund Patentverwaltu Apparatus for lining of metallurgical furnaces, particularly converters
US3287875A (en) * 1963-10-11 1966-11-29 Nat Steel Corp Method for lining furnaces
US3285390A (en) * 1963-12-23 1966-11-15 Voest Ag Apparatus for lining metallurgical vessels, such as converters
US3241634A (en) * 1965-02-01 1966-03-22 Clyde W Prosser Portable scaffolds
US3439794A (en) * 1966-12-30 1969-04-22 Republic Steel Corp Apparatus for conveying and distributing articles in a conefined region
US3517771A (en) * 1967-02-10 1970-06-30 Demag Ag Movable platform between metallurgical furnaces

Cited By (5)

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Publication number Priority date Publication date Assignee Title
US5018923A (en) * 1988-11-09 1991-05-28 Paul Wurth S.A. Automated bricklaying apparatus
US20050150721A1 (en) * 2002-05-10 2005-07-14 Daio Paper Corporation Working device for inner wall surface of tower tank, and inner wall surface working method using the same
US20070074934A1 (en) * 2005-09-20 2007-04-05 Hitachi Plant Engineering & Construction Co., Ltd. Inspection scaffold of large component for boiler and building method thereof
US7726447B2 (en) * 2005-09-20 2010-06-01 Hitachi Plant Technologies, Ltd. Inspection scaffold of large component for boiler and building method thereof
US20160339277A1 (en) * 2015-05-19 2016-11-24 Anco Maritime Activities Ltd. Method for inspecting an inside room of a ship and/or performing works therein

Also Published As

Publication number Publication date
JPS4984906A (ja) 1974-08-15
CA998828A (en) 1976-10-26
JPS4984910A (ja) 1974-08-15
JPS4984907A (ja) 1974-08-15
JPS4984909A (ja) 1974-08-15
FR2184720A1 (ja) 1973-12-28
JPS4961006A (ja) 1974-06-13
GB1434761A (en) 1976-05-05
GB1434762A (en) 1976-05-05
DE2323892A1 (de) 1973-12-06
FR2184720B1 (ja) 1974-05-17
JPS4984908A (ja) 1974-08-15
IT987466B (it) 1975-02-20

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