US3282578A - Furnace liner - Google Patents
Furnace liner Download PDFInfo
- Publication number
- US3282578A US3282578A US335535A US33553564A US3282578A US 3282578 A US3282578 A US 3282578A US 335535 A US335535 A US 335535A US 33553564 A US33553564 A US 33553564A US 3282578 A US3282578 A US 3282578A
- Authority
- US
- United States
- Prior art keywords
- liner
- chamber
- heat
- furnace
- mesh
- 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
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
- F27D1/0003—Linings or walls
- F27D1/0033—Linings or walls comprising heat shields, e.g. heat shieldsd
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
-
- 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
-
- 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
- F23M2700/00—Constructional details of combustion chambers
- F23M2700/005—Structures of combustion chambers or smoke ducts
Definitions
- the heating industry in general has long been plagued with the problem of providing adequate furnace line-rs.
- the problem exists because the present materials used for linens for the most part are bulky and heavy. This, of course, is due to the fact that the primary consideration in providing such a liner is to select a material .that can withstand the high heats which are required to be generated in the ovens in which they are to be used.
- a comrnon example of such a liner is fire brick or some such refractory and/ or insulation used in most ovens in which heats upward of 1000" F. are produced.
- the refractory of necessity must Ibe bulky and heavy in order to withstand the required temperatures and repeated exposure to thermal shock.
- sin-ce the primary consideration of the refractory is to withstand the shock without spalling, additional insulation for the oven is necessary and which makes the outer shell of the furnace very lange -i and expensive in order to support the weight of the refractory and insulation.
- the heating device of the type ldescribed above requires in addition to a heavy, bulky wall structure, auxiliary apparatus such as forced air blower or the like to produce heats above approximately 800 F. because the present liners -are not capable of eicient radiation and re-radia tion of the heat produced in the chamber.
- the present invention overcomes this long standing problem by providing a light in weight, efficient liner for ovens, kiln, or the like which substantially increases the heat producing capacity of the oven in which it is used; yet due to its light weight, does not require a heavy and bulky support wall as do the present liners.
- An additional object of the invention is to provide a novel liner for ovens, kilns or the like which is compact in size and light in Weight.
- Another object of the invention is to provide a novel liner ⁇ for furnaces, ovens, kilns or the like which req-uires less supporting structure due to its lighter size and weight.
- Another object of the invention is to provide la liner comprising 'a plurality of screens in juxtaposition relationship to present greater surface area to the heat produced in the heat chamber so that the heat may be radiated and rie-radiated between the liner and furnace charge.
- a further object of the invention is to provide a novel liner for furnaces, oven, kilns or the like which comprises a plurality of screens in juxtaposition relationship wherein the inner layer of screening adjacent the 'heat chamber is of coarser mesh than the layer further removed therefrom to better withstand exposure to the higher temperatures.
- FIGURE 1 is a cross-sectional view of a furnace showin-g the present invention used in conjunction with a typical furnace.
- FIGURE 2 is an enlarged cross-sectional view of the wall of the furnace taken substantially along lines 2 2 of FIGURE l showing a particular construction of the liner.
- FIGURE 3 is an enlarged cross-sectional view of a furnace wall depicting. a modified liner that could be used in the environment disclosed in FIGURE l.
- T-he general furnace combination is disclosed in FIG- URE l and designated by reference numeral 1.
- the furnace, oven, kiln or the like consists of an outside shell 9, a layer of insulation 8 adjacent to the outside shell 9, and a liner 7, all supported on a base 6.
- Burners or heating elements 4 are positioned on the base and extend into a heat chamber 10.
- a grate or support means 3 is provided within chamber 10 to support a charge 2.
- Fuel or power lines S are provided to deliver lfuel or power to the :burners or heating elements 4.
- the type or number of heaters used i.e., gas, oil or elect-ric is immaterial so far as the present invention is concerned.
- the invention pertains to the construction and use of the liner in a furnace, oven, kiln or the like.
- the liner comprises multiple layers of screens arranged in juxtaposition relationship.
- the screen layers nearer to the charge 2 are generally, but not necessarily, of ⁇ coarser mesh than the layers more remote from the heat chamber 10 as illustrated in FIGURE 2.
- the reason for such an arrangement is so the screen nearer to the heat chamber 10 can withstand greater heat with less deterioration, whereas the screens more remote are of finer mesh so that they can present a greater radiation surface per unit of screen area to radiate the heat not radiated by the coarser screens closer to the heat chamber.
- the finer the rnesh o-f wire used the greater is the radiating surface per unit of screen.
- the most efficient liner would be where all layers of screens are of fine mesh. This arrangement, shown in FIGURE 3, would be practical where the oven, kiln, furnace or the like is required to produce only ,relatively low 'heats in which the finer mesh wire would be able to withstand the -lo-wer heats with only normal wear. Conversely, where relatively higher heats ⁇ are to be produced, the liner will consist of coarser ⁇ mesh wire next to the heat cham-ber and becoming progressively liner mesh the more remote the screen layers are positioned from the heat chamber.
- the number of screen layers required in a particular lining ydepends on several variables such as the temperatures required to be produced in the furnace, the type and size of the changes which the furnace is required to accommodate, the type of material lfrom which thescreens are constructed, the type of insulation material between the screen liner and the outer wall, and other 'minor considerati-ons obvious to one skilled in the art.
- the type of screen material selected for the liner is governed by the heats to be produced.
- the melting point of the material must exceed the high heat level requirement of the furnace, oven, kiln or the like, in which the liner is to be used.
- Nichrorne and Inconal are trade names for alloys suitable for screening where the melting point of the screens must be approximately 3,000 F.
- the screens can be ma-de from other metallic, as well as non-metallic materials.
- the principle of operation of the screen liner is that due to the nature of construction of screening, much greater radiating surface is presented than the equivalent area of conventional fiat, continuous surface liners.
- the greater surface radiates and re-radiatm a greater amount of the heat produced in the heating chamber, thereby, raising the heat of the charge with relatively little heat loss.
- An apparatus adapted to produce heat comprising a housing having wall means arranged to define a chamber, said Wall means including a support wall, insulation means disposed intermediate Said .support wall and chamber, and a lining disposed adjacent said insulation means and exposed to said chamber, said lining comprising multiple layers of heat resistant, mesh screens arranged in juxtaposition, and means for :heating said chamber Whereby heat in said chamber is absorbed :by said lining and radiated lback intosaid chamber.
- lan apparatus adapted to produce heat land which includes walls arranged to delinea heat chamber in which the heat is ⁇ adapted to be produced, a liner for the chamber comprising multiple layers of lheat resistant, mesh screens arranged in juxtaposition 'and positioned relative to said chamber to receive heat therefrom and radiate it back into said chamber.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Tunnel Furnaces (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Furnace Details (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US335535A US3282578A (en) | 1964-01-03 | 1964-01-03 | Furnace liner |
DE1433806A DE1433806C3 (de) | 1964-01-03 | 1964-12-17 | Wand für einen Glühofen |
GB51942/64A GB1041550A (en) | 1964-01-03 | 1964-12-21 | Improvements relating to linings of furnaces, ovens, kilns and the like |
NL6415278A NL6415278A (es) | 1964-01-03 | 1964-12-30 | |
BE657882D BE657882A (es) | 1964-01-03 | 1965-01-04 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US335535A US3282578A (en) | 1964-01-03 | 1964-01-03 | Furnace liner |
Publications (1)
Publication Number | Publication Date |
---|---|
US3282578A true US3282578A (en) | 1966-11-01 |
Family
ID=23312179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US335535A Expired - Lifetime US3282578A (en) | 1964-01-03 | 1964-01-03 | Furnace liner |
Country Status (5)
Country | Link |
---|---|
US (1) | US3282578A (es) |
BE (1) | BE657882A (es) |
DE (1) | DE1433806C3 (es) |
GB (1) | GB1041550A (es) |
NL (1) | NL6415278A (es) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3718323A (en) * | 1971-02-01 | 1973-02-27 | R Ulbrich | Radiant lining |
US4055926A (en) * | 1975-08-11 | 1977-11-01 | Johns-Manville Corporation | Refractory fiber blanket module |
US4103469A (en) * | 1975-08-11 | 1978-08-01 | Johns-Manville Corporation | Refractory fiber blanket module for furnace areas with high gas velocities |
US4628895A (en) * | 1984-01-24 | 1986-12-16 | Giovanni Santilli | Kiln and autonomous heat source portable integrated unit |
US4720261A (en) * | 1983-08-20 | 1988-01-19 | Metal Box Public Limited Company | Explosion relief panel |
US5653905A (en) * | 1995-02-16 | 1997-08-05 | Mckinney; Eugene F. | Royalton natural air movement system |
US5786568A (en) * | 1995-02-16 | 1998-07-28 | Leonhard May | Programmable oven for cooking holding and proofing comestibles |
US20060029897A1 (en) * | 2004-08-04 | 2006-02-09 | Ibiden Co., Ltd. | Continuous firing furnace, manufacturing method of porous ceramic member using the same, porous ceramic member, and ceramic honeycomb filter |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4244686A (en) * | 1979-07-18 | 1981-01-13 | General Electric Company | Energy saving furnace and method of operating same |
DE10160898A1 (de) * | 2001-12-12 | 2003-06-26 | Jouri Pinaev | Das Futter von Industrieöfen |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2542029A (en) * | 1946-09-12 | 1951-02-20 | Hydrocarbon Research Inc | Water-cooled fluid fuel burner |
US2543708A (en) * | 1947-05-29 | 1951-02-27 | Comstock & Wescott | Heat-treating furnace |
US2607663A (en) * | 1947-07-25 | 1952-08-19 | Rohm & Haas | Catalyst unit |
US2641456A (en) * | 1949-12-22 | 1953-06-09 | William E Schmertz | Heat recovery apparatus |
GB727174A (en) * | 1951-11-16 | 1955-03-30 | Kanthal Ab | Improvements in and relating to heating apparatus heated by liquid or gaseous fuel |
GB852457A (en) * | 1959-03-11 | 1960-10-26 | Leonard Ernest Squire | Improvement in industrial furnaces |
US3122197A (en) * | 1961-06-28 | 1964-02-25 | Caloric Appliance Corp | Radiant burner |
-
1964
- 1964-01-03 US US335535A patent/US3282578A/en not_active Expired - Lifetime
- 1964-12-17 DE DE1433806A patent/DE1433806C3/de not_active Expired
- 1964-12-21 GB GB51942/64A patent/GB1041550A/en not_active Expired
- 1964-12-30 NL NL6415278A patent/NL6415278A/xx unknown
-
1965
- 1965-01-04 BE BE657882D patent/BE657882A/xx unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2542029A (en) * | 1946-09-12 | 1951-02-20 | Hydrocarbon Research Inc | Water-cooled fluid fuel burner |
US2543708A (en) * | 1947-05-29 | 1951-02-27 | Comstock & Wescott | Heat-treating furnace |
US2607663A (en) * | 1947-07-25 | 1952-08-19 | Rohm & Haas | Catalyst unit |
US2641456A (en) * | 1949-12-22 | 1953-06-09 | William E Schmertz | Heat recovery apparatus |
GB727174A (en) * | 1951-11-16 | 1955-03-30 | Kanthal Ab | Improvements in and relating to heating apparatus heated by liquid or gaseous fuel |
GB852457A (en) * | 1959-03-11 | 1960-10-26 | Leonard Ernest Squire | Improvement in industrial furnaces |
US3122197A (en) * | 1961-06-28 | 1964-02-25 | Caloric Appliance Corp | Radiant burner |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3718323A (en) * | 1971-02-01 | 1973-02-27 | R Ulbrich | Radiant lining |
US4055926A (en) * | 1975-08-11 | 1977-11-01 | Johns-Manville Corporation | Refractory fiber blanket module |
US4103469A (en) * | 1975-08-11 | 1978-08-01 | Johns-Manville Corporation | Refractory fiber blanket module for furnace areas with high gas velocities |
US4720261A (en) * | 1983-08-20 | 1988-01-19 | Metal Box Public Limited Company | Explosion relief panel |
US4628895A (en) * | 1984-01-24 | 1986-12-16 | Giovanni Santilli | Kiln and autonomous heat source portable integrated unit |
US5653905A (en) * | 1995-02-16 | 1997-08-05 | Mckinney; Eugene F. | Royalton natural air movement system |
US5786568A (en) * | 1995-02-16 | 1998-07-28 | Leonhard May | Programmable oven for cooking holding and proofing comestibles |
US20060029897A1 (en) * | 2004-08-04 | 2006-02-09 | Ibiden Co., Ltd. | Continuous firing furnace, manufacturing method of porous ceramic member using the same, porous ceramic member, and ceramic honeycomb filter |
EP1710523A1 (en) * | 2004-08-04 | 2006-10-11 | Ibiden Co., Ltd. | Continuous firing kiln and process for producing porous ceramic member therewith |
EP1710523A4 (en) * | 2004-08-04 | 2006-10-11 | Ibiden Co Ltd | CONTINUOUS FUEL OVEN AND METHOD FOR PRODUCING A POROUS CERAMIC MEMBER THEREWITH |
US7284980B2 (en) | 2004-08-04 | 2007-10-23 | Ibiden Co., Ltd. | Continuous firing furnace, manufacturing method of porous ceramic member using the same, porous ceramic member, and ceramic honeycomb filter |
Also Published As
Publication number | Publication date |
---|---|
NL6415278A (es) | 1965-07-05 |
DE1433806A1 (de) | 1969-09-18 |
DE1433806C3 (de) | 1975-01-30 |
DE1433806B2 (de) | 1974-06-20 |
GB1041550A (en) | 1966-09-07 |
BE657882A (es) | 1965-04-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3282578A (en) | Furnace liner | |
US2276527A (en) | Apparatus for heating fluids | |
US3149625A (en) | Power-stoked coal-fired heating unit | |
US3188068A (en) | Apparatus for heat-treating metals | |
US1448162A (en) | Furnace | |
US2601167A (en) | Furnace and heat retaining unit therefor | |
US3718323A (en) | Radiant lining | |
US1785583A (en) | Combustion chamber | |
US2289719A (en) | Metallurgical furnace | |
US2229262A (en) | Heat transfer system | |
US3266480A (en) | Warm air furnace | |
US3229747A (en) | Radiant burner | |
US1342074A (en) | Heating-furnace | |
SU649936A1 (ru) | Шахтна печь дл обжига карбонатного сырь | |
US2194025A (en) | Underfeed stoker for hot air furnaces | |
SU141171A1 (ru) | Многозонна шахтна печь | |
EP0257840B1 (en) | Burner | |
US2953364A (en) | Coal drying furnace breeching | |
US1599010A (en) | Ftjrnace-wall construction | |
US2348118A (en) | Oven heating system | |
SU624940A1 (ru) | Печь сопротивлени дл спекани деталей | |
US1620805A (en) | Furnace | |
US2556281A (en) | Electric stove | |
US3122627A (en) | Ovens or stoves | |
US1458668A (en) | Heating stove |