US3405668A - Refractory brick suspension arrangement - Google Patents

Refractory brick suspension arrangement Download PDF

Info

Publication number
US3405668A
US3405668A US512850A US51285065A US3405668A US 3405668 A US3405668 A US 3405668A US 512850 A US512850 A US 512850A US 51285065 A US51285065 A US 51285065A US 3405668 A US3405668 A US 3405668A
Authority
US
United States
Prior art keywords
hanger
brick
socket
refractory
recess
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
US512850A
Other languages
English (en)
Inventor
Joseph L Stein
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.)
General Refractories Co
Original Assignee
General Refractories Co
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 General Refractories Co filed Critical General Refractories Co
Priority to US512850A priority Critical patent/US3405668A/en
Priority to AT1066866A priority patent/AT262868B/de
Priority to BR184733/66A priority patent/BR6684733D0/pt
Priority to DE19661501997 priority patent/DE1501997A1/de
Priority to GB55135/66A priority patent/GB1119588A/en
Application granted granted Critical
Publication of US3405668A publication Critical patent/US3405668A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/14—Supports for linings
    • F27D1/145—Assembling elements
    • F27D1/147—Assembling elements for bricks
    • F27D1/148—Means to suspend bricks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
    • F27D1/06—Composite bricks or blocks, e.g. panels, modules
    • F27D1/08—Bricks or blocks with internal reinforcement or metal backing

Definitions

  • a refractory brick suspension arrangement including a loop-shaped metal rod hanger, the leg portions of the hanger having parallel perpendicular foot portions, the foot portions of the hanger being received within a single socket in a side face of a refractory brick upon compression of the leg portions of the hanger, the socket in the brick being substantially parallel to and spaced from the cold face of the brick.
  • a recess is provided in the side wall of the brick to receive the leg portions of the hanger, the side walls of the recess being inclined parallel with the hanger leg portions to permit the seating of the leg portions thereagainst.
  • the described arrangement permits the flush mounting of a thin metal casing over the side wall of the brick covering the recessed legs of the hanger and the hanger socket.
  • the present invention relates generally to refractory brick suspension arrangements of the type used in constructing walls and roofs of industrial furnaces, and relates more particularly to a novel hanger for suspending or connecting a refractory brick to a furnace roof or wall support structure.
  • the suspension of individual refractory bricks from a supporting framework on the exterior of furnace roofs and walls is commonly employed for a variety of purposes.
  • the individual bricks of a sprung arch may be provided with suspension means to prevent collapse of the arch as the bricks are consumed in service.
  • suspended refractory bricks may be hung directly from a rigid support to form a furnace roof, thus eliminating the need for the forms on which arches are usually constructed.
  • Suspension arrangements are further employed in the patching of furnace walls and arches, particularly during furnace operation.
  • suspended refractory bricks connected to rigid supports or framework are used in vertical furnace walls to prevent bowing of the walls in service.
  • Another suspension arrangement employs a metal tab which is slidable into mounting position from a recessed position within the refractory plating.
  • the main drawback in such a construction is the lack of a positive anchor to the refractory material.
  • the present suspension arrangement is characterized by a relatively small socket extending from a side face of the brick into the brick parallel with the cold brick face.
  • a hanger of metal rod having an inverted U-shape includes perpendicular foot portions adapted for insertion into the socket of the brick, the socket being of a narrower width than the relaxed spacing of said foot portions so that the foot portions must be pressed together to spring load the hanger for insertion into the brick socket.
  • a suitable recess is provided in the brick face between the socket and the cold face of the brick to permit the hanger to be recessed within the brick face, thus permitting the uninterrupted plating of the brick.
  • plating is not essential, it serves to further protect the hanger as well as to additionally secure the hanger in place during shipment and installation.
  • An additional object of the invention is to provide a refractory hanger arrangement as described the hanger of which, in the plated or encased embodiment, is shielded from heat and corrosion by the protective brick plating or casing.
  • a further object of the invention is to provide a refractory brick hanger arrangement as described which may be safely and easily handled and installed.
  • Another object of the invention is to provide a refractory brick hanger arrangement as described which may be economically manufactured.
  • FIG. 1 is a perspective view showing a metal rod hanger of the type adapted for use in the present suspension arrangement
  • FIG. 2 is a partial perspective view showing the cold end of an encased refractory brick, the casing being broken away to show the details of the hanger socket and recess;
  • FIG. 3 is a side elevational view showing the assembled hanger and brick of FIGS. 1 and 2, the brick plating being broken away to show the manner in which the hanger is seated in the brick recess and socket;
  • FIG. 4 is a sectional view taken along line 44 of FIG. 3 showing in further detail the seating of the hanger in the brick.
  • the present suspension arrangement is shown embodied in a refractory brick 10 having a rectangular cross-section. Since, as in the usual suspension arrangement the present hanger is connected to the brick at the upper or outer end of the brick adjacent what is known as the cold face of the brick, only this one end of the brick is shown in the drawings.
  • the present hanger arrangement may be suitably used for a variety of types and shapes of refractory bricks includingburned and unburned chemically bonded bricks.
  • the brick 10 is suspended by means of a hanger 12 seated within a socket 14 in a side face 16 of the brick, the socket 14 being substantially parallel with and spaced from the cold face 18 of the brick.
  • the hanger 12 is formed of a metal rod, preferably stainless steel, and is formed in an inverted U-shape having parallel leg portions 20 and a connecting loop portion 22 as shown in FIG. 1. The lower ends of the leg portions extend perpendicularly to the plane of the loop and leg portions to form the parallel foot portions 24 which are adapted to seat within the brick socket,
  • the socket 14 in the brick is of a substantially narrower width than the "spacing between the foot portions 24 of the hanger when the hanger is in the relaxed condition shown in FIG. 1.
  • the hanger foot portions must accordingly be forced together to spring load the hanger for insertion of the foot portions into the socket 14 as shown in FIGS. 3 and 4. This spring loading of the hanger-serves to secure the hanger in place in the socket during shipping, storage and installation of the brick.
  • a recess 26 is provided in the face 16 of the brick extending from the socket 14 to the cold face 18.
  • the side walls 28 of the recess are preferably inclined as shown in FIGS. 2 and 3 so as to be parallel to the legs 20 of the hanger to permit the firm seating of the legs thereagainst. This arrangement adds substantially to the rigidity of the hanger attachment.
  • the present hanger arrangement is suitable for bricks which do not employ a protective metal plate or casing therearound, the arrangement is particularly well suited for the application of such a casing.
  • a casing 30 is shown surrounding the side walls of the brick including the side wall 16, the casing comprising a thin metal sheet extending substantially to the cold face 18. Since the hanger 12 is recessed into the face 16, there is no intereference with the application of the casing. Although, as pointed out above, the casing is not essential to secure the hanger in the brick, it does serve to positively lock the hanger in the socket.
  • the recess 26 is preferably of a sufiicient depth so as to provide a clearance 32 between the hanger legs 20 and the casing 30 when the hanger is seated against the face 34 of the recess as shown in FIG. 4.
  • the shape of the socket 14 can be varied as desired, for ease of manufacture it is preferably tapered slightly inwardly as shown in FIG, 4 to facilitate the molding of the brick.
  • the loop type hanger has the advantage of being relatively safe for handling and shipping since there are no sharp edges protruding from the assembly.
  • the positive seating of the hanger in the socket and recess and the additional locking of the hanger in the socket when the brick is encased as illustrated insure against the possibility of the brick dropping from the hanger during installation, a serious hazard with other types of hangers, some of which rely on the proximity of adjacent bricks to hold the brick on the hanger.
  • the loop type hanger is readily adapted for use with conventional hanger extensions for connection i ,7 l j 4 to a furnace supporting superstructure, and is of course adapted for use either fiat or arched furnace roofs or in furnace wall structures.
  • a particular advantage of the present structure is the isolation of the hanger from the intense heat and corrosive gases present along the brick faces by means of the recessing of the hanger into the brick face to protect the hanger legs.
  • heat is not transferred from the casing to the hanger by conduction. Since the hanger is in this manner protected to a degree from surface oxidation, a relatively light weight hanger may be employed thereby reducing the cost of materials required as well as the weight of the assembly.
  • the damage from surface oxidation is further reduced by fabricating the hanger from metal rod, since having a circular cross-section the hanger surface area exposed in proportion to the metal thickness is minimized.
  • the shape of the hanger loop portion may be varied as desired to accommodate different types of hanger extensions.
  • the leg portions of the hanger although illustrated as parallel, may be inwardly or outwardly inclined in the relaxed condition of the hanger.
  • the brick may have two spaced sockets to receive the hanger leg portions rather than the single socket described.
  • the present hanger structure whether utilized with or without the protective plating or casing, can be manufactured and installed economically in contrast to more complex conventional suspension arrangements. Should the suspension be used with an unplated or unenc-ased brick, the hanger would normally be mounted in the brick at the time of manufacture although it may optionally be installed at the time of installation should it prove desirable to transport and store the bricks without the extending hanger.
  • a refractory brick hanger assembly comprising a refractory brick having a socket in a side wall thereof substantially parallel to and spaced from the cold face of the brick, a metal rod hanger having an inverted U- shape including leg portions joined by a loop portion, the lower ends of said leg portions terminating in spaced foot portions extending substantially perpendicularly to the A plane of the hanger loop and leg portions, said foot portions of said hanger being seated in said socket with at least the loop portion of said hanger projecting perpendicularly above the cold face of the brick, the width of said socket being smaller than the spacing between said hanger foot portions when said hanger is in the detached relaxed condition, whereby compression of the hanger is necessary for introduction of said foot portions into said socket, the compressed hanger providing a spring-loaded attachment of the hanger to the brick, and a recess in said side wall of said brick extending between said socket and said brick cold face adapted to receive the leg portions of said hanger.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
US512850A 1965-12-10 1965-12-10 Refractory brick suspension arrangement Expired - Lifetime US3405668A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US512850A US3405668A (en) 1965-12-10 1965-12-10 Refractory brick suspension arrangement
AT1066866A AT262868B (de) 1965-12-10 1966-11-18 Feuerfester Hängestein
BR184733/66A BR6684733D0 (pt) 1965-12-10 1966-11-21 Arranjo de suspensao de tijolos refratarios
DE19661501997 DE1501997A1 (de) 1965-12-10 1966-12-06 Aufhaengung feuerfester Ziegel
GB55135/66A GB1119588A (en) 1965-12-10 1966-12-09 Refractory brick suspension arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US512850A US3405668A (en) 1965-12-10 1965-12-10 Refractory brick suspension arrangement

Publications (1)

Publication Number Publication Date
US3405668A true US3405668A (en) 1968-10-15

Family

ID=24040841

Family Applications (1)

Application Number Title Priority Date Filing Date
US512850A Expired - Lifetime US3405668A (en) 1965-12-10 1965-12-10 Refractory brick suspension arrangement

Country Status (5)

Country Link
US (1) US3405668A (pt)
AT (1) AT262868B (pt)
BR (1) BR6684733D0 (pt)
DE (1) DE1501997A1 (pt)
GB (1) GB1119588A (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6487980B2 (en) * 2000-02-08 2002-12-03 Didier-Werke Ag Refractory ceramic plate and accompanying wall structure for an incinerator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1278174A (fr) * 1960-10-28 1961-12-08 Veitscher Magnesitwerke Ag Brique réfractaire suspendue, munie d'un élément de suspension et d'une garnitureextérieure en tôle
US3280771A (en) * 1964-10-19 1966-10-25 Kaiser Aluminium Chem Corp Suspended refractory units
US3282231A (en) * 1965-07-26 1966-11-01 Harbison Walker Refractories Refractory brick units

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1278174A (fr) * 1960-10-28 1961-12-08 Veitscher Magnesitwerke Ag Brique réfractaire suspendue, munie d'un élément de suspension et d'une garnitureextérieure en tôle
US3280771A (en) * 1964-10-19 1966-10-25 Kaiser Aluminium Chem Corp Suspended refractory units
US3282231A (en) * 1965-07-26 1966-11-01 Harbison Walker Refractories Refractory brick units

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6487980B2 (en) * 2000-02-08 2002-12-03 Didier-Werke Ag Refractory ceramic plate and accompanying wall structure for an incinerator

Also Published As

Publication number Publication date
GB1119588A (en) 1968-07-10
BR6684733D0 (pt) 1973-08-09
AT262868B (de) 1968-06-25
DE1501997A1 (de) 1970-03-05

Similar Documents

Publication Publication Date Title
US3259086A (en) Hinged refractory brick hanger
US3121978A (en) Reinforcement and anchoring device for dovetail metallic channel
US2780850A (en) Construction clip
US3405668A (en) Refractory brick suspension arrangement
US2657651A (en) Hanger construction for anchor tiles of refractory arches
US2980756A (en) Electrical outlet leveler
US2725833A (en) Basic refractory support
US2885976A (en) Patching block for furnace roof
US2581989A (en) Furnace wall structure
US3058713A (en) Hanger clamp
CA1059380A (en) Industrial furnace roof assembly and components thereof
US2960048A (en) Refractory article
US3029755A (en) Furnace roof block with sheet metal hanger
US5899151A (en) Industrial furnace roof assembly and components thereof
JP2009222325A (ja) 貯湯式給湯器
US3104737A (en) Hanger assembly
US2991736A (en) Furnace roof blocks with hangers
US3019561A (en) Flexible anchor arrangement for castable or plastic refractory and method for employing the same
US2264551A (en) Refractory lining for furnaces and the like
US3431693A (en) Hanger structure
US3282231A (en) Refractory brick units
US2768804A (en) Adjustable suspension
US3325959A (en) Chair supports for building constructions
US3073264A (en) Furnace roof suspended by interconnected brick hanger extensions
US3205842A (en) Furnace roof block