CN101611283A - Multiple-hearth furnace - Google Patents

The invention discloses a kind of multiple-hearth furnace, comprise the handle (26) of have tubular structure (120,124,186) and header body (110).This header body is

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US8382471B2 - Multiple hearth furnace - Google Patents

A multiple hearth furnace including a rabble arm with a tubular structure and a solid plug body. The latter is received in a socket arranged in an arm fixing node.

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Furnace With Multiple Hearth Patents and Patent ...

Furnace With Multiple Hearth Patents (Class 110/225) Increasing stability of a pyrolysis product. Patent number: 9816040 Abstract: The present disclosure

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EP2126504A1 - Multiple hearth furnace - Google Patents

A multiple hearth furnace comprises a gas cooling system for its central shaft (20) and its rabble arms (26). This gas cooling system includes within the shaft

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Multiple-hearth furnace - Paul Wurth S.A.

The multiple-hearth furnace as claimed in claim 14, wherein said furnace wall comprises an external shell and a refractory inner liner, said wall cavities being

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MULTIPLE HEARTH FURNACE IMPROVEMENTS -

1. A multiple hearth furnace for contacting a feed material with a gas the multiple hearth furnace comprising: an external casing having an inner wall

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Analytics for US Patent No. 8382471, Multiple hearth furnace

A multiple hearth furnace including a rabble arm with a tubular structure and a solid plug body. The latter is received in a socket arranged

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Multiple hearth furnace chamber - Zimpro Inc.

A multiple hearth furnace chamber according to claim 1, wherein said expansion joint comprises a material which, at normal furnace operating temperatures, will

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Gordon W. Czop Inventions, Patents and Patent

1990-10-29  Abstract: A method of oxidizing feed materials using a multiple hearth furnace comprises the steps of introducing the feed materials to be oxidized on at least the

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Furnace With Multiple Hearth Patents and Patent ...

Furnace With Multiple Hearth Patents (Class 110/225) Increasing stability of a pyrolysis product. Patent number: 9816040 Abstract: The present disclosure relates generally to novel biomass pyrolysis processes and systems that decrease entrainment of char and other contaminants with the pyrolysis vapors as a direct consequence of the biomass ...

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MULTIPLE HEARTH FURNACE - Patent application

2010-5-27  Patent application title: MULTIPLE HEARTH FURNACE Inventors: Emile Lonardi (Bascharage, LU) Patrick Hutmacher (Bettembourg, LU) Edgar Kraemer (Hellange, LU) Paul Tockert (Luxembourg, LU) Assignees: PAUL WURTH S.A. IPC8 Class: AF27B124FI USPC Class: 432131 Class name: Work moved to drop between shelf or trough-type chambers combustion products generated in

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MULTIPLE HEARTH FURNACE IMPROVEMENTS -

1. A multiple hearth furnace for contacting a feed material with a gas the multiple hearth furnace comprising: an external casing having an inner wall surface that is substantially cylindrical; a roof structure at an upper end of the external casing; a plurality of substantially circular hearths vertically spaced apart from each other within the external casing each hearth comprising an upper ...

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Analytics for US Patent No. 8382471, Multiple hearth furnace

A multiple hearth furnace including a rabble arm with a tubular structure and a solid plug body. The latter is received in a socket arranged

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Multiple-hearth furnace - Paul Wurth S.A.

The invention claimed is: 1. A multiple-hearth furnace comprising: a furnace wall delimiting a cylindrical space with a vertical axis, said furnace wall comprising an inner surface and an outer surface; a plurality of soles delimiting said hearths within said cylindrical space; at least one rabble arm with a wall scraper configured to recover material that accumulates in the vicinity of the ...

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A method for direct production of iron in a multiple ...

Before serving in multiple-hearth furnace for iron ore may be added to the solid reducing agent. Part of the recovery gas of at least one of the top recovery pods away and serves at least one of the underlying restorative pods. From US 2089782 known way to obtain sponge iron in a multiple-hearth furnace, with a few located one above the other pods.

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Jeannot Konsbruck Inventions, Patents and Patent ...

Abstract: A multiple hearth furnace comprises at least one cleaning lance inlet port (52, 54) radially leading into one of its hearth chambers (24). A cleaning lance assembly (40′, 40″) includes an elongated mount (42) and at least one cleaning lance (48, 50) slidably mounted on the elongated mount (42).

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multiple hearth furnace, BSP Thermal Systems Inc. History

2019-5-10  During the early 1900’s Pacific Foundry Company started producing multiple hearth furnaces for ore roasting applications. Around the same time, Nichols Engineering obtained patent rights to the Herreshoff furnace which soon became the industry standard.

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Patents Assigned to Marquess and Nell, Inc. - Justia ...

Abstract: A method of oxidizing feed materials using a multiple hearth furnace comprises the steps of introducing the feed materials to be oxidized on at least the uppermost hearth, introducing fuel/air mixtures in the uppermost hearth to dry and ignite the feed materials, introducing air on at least one hearth to support combustion of the feed materials, allowing the feed materials to move ...

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High temperature damper - Nichols Engineering

United States Patent 4308805 . Abstract: There is disclosed a damper for controlling the flow of high temperature gases to respective hearth chambers of a multiple hearth furnace, for example, the damper being formed of temperature resistant ceramic plate having an air cooled shaft extending diametrically therethrough and insulated from the ...

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MULTIPLE HEARTH FURNACE - Patent application

2010-5-27  Patent application title: MULTIPLE HEARTH FURNACE Inventors: Emile Lonardi (Bascharage, LU) Patrick Hutmacher (Bettembourg, LU) Edgar Kraemer (Hellange, LU) Paul Tockert (Luxembourg, LU) Assignees: PAUL WURTH S.A. IPC8 Class: AF27B124FI USPC Class: 432131 Class name: Work moved to drop between shelf or trough-type chambers combustion products generated in

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A method for direct production of iron in a multiple ...

Before serving in multiple-hearth furnace for iron ore may be added to the solid reducing agent. Part of the recovery gas of at least one of the top recovery pods away and serves at least one of the underlying restorative pods. From US 2089782 known way to obtain sponge iron in a multiple-hearth furnace, with a few located one above the other pods.

Get Price

US Patent Application for Process for thermal treatment of ...

2001-2-12  A process for thermal treatment of residual materials containing heavy metal and iron oxide, including providing a multiple-hearth furnace having hearths provided one above the other, depositing the residual materials continuously on a top hearth of the hearths, gradually transferring the residual materials to lower hearths of the hearths, introducing reducing agents to at least one of the ...

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multiple hearth furnace, BSP Thermal Systems Inc. History

2019-5-10  During the early 1900’s Pacific Foundry Company started producing multiple hearth furnaces for ore roasting applications. Around the same time, Nichols Engineering obtained patent rights to the Herreshoff furnace which soon became the industry standard.

Get Price

OPTIMIZATION OF MULTIPLE HEARTH FURNACE

The District operates a multiple hearth furnace for primary and biological solids, and incinerator flue gas is passed through a wet scrubber. ... This patent describes a process for the reduction ...

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Gordon W. Czop Inventions, Patents and Patent

1990-10-29  Abstract: A method of oxidizing feed materials using a multiple hearth furnace comprises the steps of introducing the feed materials to be oxidized on at least the uppermost hearth, introducing fuel/air mixtures in the uppermost hearth to dry and ignite the feed materials, introducing air on at least one hearth to support combustion of the feed materials, allowing the feed materials to move ...

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Multiple Hearth Furnace (MHF) Contract - Unit 2

2017-9-20  “Multi-Hearth Furnace Contract(s)” means any, some or all of the four (4) contracts, of even date herewith, by and between the Parties, entitled “Multiple Hearth Furnace (MHF) Contract (Crowfoot Project)” for Unit #1, Unit #2, Unit #3 or Unit #4.

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Alternative fuels for multiple-hearth furnaces (Journal ...

2021-7-24  Results are described of a feasibility study on the use of refuse-derived fuel, shredded paper, wood waste, coal, and waste oil in multiple-hearth furnaces at the Lower Molonglo Water Quality Control Centre in Australia. An assessment of waste fuel availability and characteristics is given, and a ...

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FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL;

2021-7-29  Combinations of hearth-type furnaces 3/045 . {Multiple chambers, e.g. one of which is used for charging} 3/06 . with movable working chambers or hearths, e.g. tiltable {, oscillating or describing a composed movement} 3/065 . {tiltable} 3/08 . heated electrically, with or without any other source of heat 3/085 . {Arc furnaces} 3/10 . Details ...

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Activated Carbon - chavond-barry

The multiple hearth furnace is unique in that the solids pass though a series of compartmentalized chambers (hearths), wherein the reaction environment can be accurately controlled and may even be drastically different from one hearth to the next; a variety of furnace

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