US3064594A - Refractory roof - Google Patents

Refractory roof Download PDF

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Publication number
US3064594A
US3064594A US806550A US80655059A US3064594A US 3064594 A US3064594 A US 3064594A US 806550 A US806550 A US 806550A US 80655059 A US80655059 A US 80655059A US 3064594 A US3064594 A US 3064594A
Authority
US
United States
Prior art keywords
brick
roof
refractory
hanger
center
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
US806550A
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English (en)
Inventor
Heuer Russell Pearce
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
Priority to NL249933D priority Critical patent/NL249933A/xx
Application filed by General Refractories Co filed Critical General Refractories Co
Priority to US806550A priority patent/US3064594A/en
Priority to GB20574/61A priority patent/GB884046A/en
Priority to GB11228/60A priority patent/GB884045A/en
Priority to FR824397A priority patent/FR1257908A/fr
Priority to BE599608A priority patent/BE599608A/fr
Application granted granted Critical
Publication of US3064594A publication Critical patent/US3064594A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F27D1/04—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/0018—Producing metal-clad stones, such as oven stones
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/06—Crowns or roofs for combustion chambers
    • 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
    • F27D1/02—Crowns; Roofs
    • F27D1/021—Suspended roofs

Definitions

  • the present invention relates to refractory roofs.
  • a further purpose is to hang the brick of a refractory roof by a .tabV hanger with the major axis of the brick displaced from the vertical and transverse to the working face of the roof without the use of skewbacks.
  • a further purpose, in the hanger arrangement under discussion, is to utilize key brick in the middle and rectangular brick Vforming ramps at the sides of the roof.
  • a further purpose is to place the hanger tab at the side of the brick nearest to the center of the roof and protruding beyond the cold end.
  • FIGURE l is a central vertical section through the plane of the curve of a roof according to the invention. The illustration is largely diagrammatic.
  • FIGURE la is an enlarged diagrammatic elevation of one of the ramp brick in FIGURE l.
  • FIGURE 2 is a perspective of a brick employed in the roof of the present invention.
  • FIGURE 3 is a perspective of a U-shaped oxidizable metallic plate employed in making the brick of FIG- URE 2.
  • FIGURE 4 is a perspective of an alternate' top plate assembly for ⁇ forming the brick of FIGURE 2.
  • FIGURE 5 is a fragmentary vertical section of a prior art roof.
  • the amount of refractory wasted in these triangular portions is of the order of 14 percent so that the eliiciency of utilization of the refractory is only of the order of about 86 percent.
  • each brick is positioned at right angles to the working face.
  • Each brick is hung from a tab which is located at and beyond the cold end at the side of the brick adjoining the center of the concave roof.
  • the bricks are hung in pairs, the hanger for one brick being vertical and the hanger for the next brick being diverged away from the vertical, so that there is a slight lateral component of the weight of the brick which is exerted toward the center of the concave roof to keep t-he roof tight during assembly, since the hangers and bricks swing freely.
  • FIGUREv 1 I there illustrate a roof for an open hearth furnace, made up of basic refractory brick 20. At the sides are ramps 21 each made up of straight or rectangular basic refractory brick and inV the center there is a curved arch 22 made up of key brick 23. It will be understood that the key brick are of wedge shape ou ⁇ the sides 24 and 25. g
  • the hot ends 26 conform to the general shape of the working face of the roof and there are no wasted triangular portions of the brick.
  • a metallic hanger tabl 28 which has an opening 30 which receives one of the hook ends 31 of theV metallic hangers.
  • the hangers may be arranged in pairs, consisting of an integral U-shap'ed piece of steel bar, one hanger 32 of theA pair on the side nearest the center of the roof extending down generally vertically and supporting one brick and the other hanger 33 of the pair which is more remote from the center diverging from the vertical away from the center at the lower end.
  • the hangers rest on longitudinal beam-s 29 o-f an overhead structure.
  • Each ramp brick 20 as shown in FIGURE la has a center of gravity 34 which, ⁇ as the brick hangs, is immediately below the hanger tab 28 at the upper corner on the minor surface of the brick, on the vertical line 34', so that the brick' hangs stably with its major longitudinal axis 342 directed generally toward the interior or middle of the furnace.
  • vOne desirable set of dimensions for the brick is 3 x 41/2 x l2 inches, the hanger tab 28 being at the upper corner of the 3 x l2 inch minor lateral face.
  • a water cooled metallic support 35 above the door 36 which holds a seal block 37 which is adjacent to but .not actually supporting the edge of the roof.
  • a sealing extension 38 which again is adjacent to but does not support the roof.
  • the arms of lthe U are preferably provided with tab extensions 44 lanc'ed from the plate and extending into and comolded into engagement with the basicrefractory 45 of the brick.
  • the arm 42 of the U Whichadjoins one minor lateral face has at the cold end 27 Isuitably welded thereon a hanger tab 28, which, as the brick is made, is of L- shape, with the t-ab extension portion lying against the cold end of the brick.
  • the plate material is desirably steel, suitably plain carbon steel such as AISI 1010 or 1030 or alloy steel such as AISi 4130 or 8620.
  • the plates may be of a thickness varying between 1%;4. and 1A depending upon the size of the brick.
  • FIGURE 4 shows two parallel spaced oxidizable metall-io internal plates 57 secured las by welding to the top pl-ate 46, and embedded by comolding in the refractory of the brick. These plates 57 extend for the preponderance of the length of the brick parallel to the 3 x l2 inch minor lateral face of the brick in the example given.
  • a basic refractory roof which widthwise is higher in the middle and lower at the sides, comprising a plurality of basic refractory brick in contact side by side, each brick having lateral faces, having a working face exposed at the interior of the roof and having a major longitudinal axis transverse to the Working face, the
  • a refractory roof of claim 1 having a curved arch of key brick at the middle and side ramps of rectangular brick at each side.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
US806550A 1959-04-15 1959-04-15 Refractory roof Expired - Lifetime US3064594A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL249933D NL249933A (en)) 1959-04-15
US806550A US3064594A (en) 1959-04-15 1959-04-15 Refractory roof
GB20574/61A GB884046A (en) 1959-04-15 1960-03-30 Improvements relating to refractory bricks, methods of making same, and moulds for use in such methods
GB11228/60A GB884045A (en) 1959-04-15 1960-03-30 Improvements relating to refractory roofs
FR824397A FR1257908A (fr) 1959-04-15 1960-04-14 Perfectionnements apportés aux voûtes réfractaires, aux briques qu'elles comportent, ainsi qu'au procédé et au moule pour l'obtention de ces briques
BE599608A BE599608A (fr) 1959-04-15 1961-01-27 Perfectionnements apportés aux voûtes réfractaires, aux briques qu'elles comportent, ainsi qu'au procédé et au moule pour l'obtention de ces briques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US806550A US3064594A (en) 1959-04-15 1959-04-15 Refractory roof

Publications (1)

Publication Number Publication Date
US3064594A true US3064594A (en) 1962-11-20

Family

ID=25194284

Family Applications (1)

Application Number Title Priority Date Filing Date
US806550A Expired - Lifetime US3064594A (en) 1959-04-15 1959-04-15 Refractory roof

Country Status (3)

Country Link
US (1) US3064594A (en))
GB (2) GB884046A (en))
NL (1) NL249933A (en))

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106493855B (zh) * 2016-09-28 2019-01-25 中交第一航务工程局有限公司 一种梁板侧面外伸筋留置方法
CN112503563B (zh) * 2020-12-22 2024-10-08 华能陇东能源有限责任公司正宁电厂 百万塔式锅炉炉顶密封结构及其安装方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2163435A (en) * 1933-12-01 1939-06-20 Detrick M H Co Furnace roof construction
US2187669A (en) * 1936-08-12 1940-01-16 Canadian Refractories Ltd Furnace roof construction
US2529607A (en) * 1944-07-03 1950-11-14 Gen Refractories Co Suspended furnace roof
US2600460A (en) * 1948-11-12 1952-06-17 Detrick M H Co Tile arch structure
US2652793A (en) * 1948-10-30 1953-09-22 Gen Refractories Co Refractory furnace roof brick resistant to spalling
US2673373A (en) * 1951-02-14 1954-03-30 Gen Refractories Co Molding metal clad brick
US2786235A (en) * 1954-09-20 1957-03-26 Schieferstein Philip Die mold
US2880462A (en) * 1955-03-14 1959-04-07 Mc Graw Edison Co Mold having insert anchoring means
US2902721A (en) * 1955-08-08 1959-09-08 Gen Refractories Co Process of molding refractory brick
US2932265A (en) * 1954-04-27 1960-04-12 Gen Refractories Co Refractory brick

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2163435A (en) * 1933-12-01 1939-06-20 Detrick M H Co Furnace roof construction
US2187669A (en) * 1936-08-12 1940-01-16 Canadian Refractories Ltd Furnace roof construction
US2529607A (en) * 1944-07-03 1950-11-14 Gen Refractories Co Suspended furnace roof
US2652793A (en) * 1948-10-30 1953-09-22 Gen Refractories Co Refractory furnace roof brick resistant to spalling
US2600460A (en) * 1948-11-12 1952-06-17 Detrick M H Co Tile arch structure
US2673373A (en) * 1951-02-14 1954-03-30 Gen Refractories Co Molding metal clad brick
US2932265A (en) * 1954-04-27 1960-04-12 Gen Refractories Co Refractory brick
US2786235A (en) * 1954-09-20 1957-03-26 Schieferstein Philip Die mold
US2880462A (en) * 1955-03-14 1959-04-07 Mc Graw Edison Co Mold having insert anchoring means
US2902721A (en) * 1955-08-08 1959-09-08 Gen Refractories Co Process of molding refractory brick

Also Published As

Publication number Publication date
GB884045A (en) 1961-12-06
GB884046A (en) 1961-12-06
NL249933A (en))

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