multiple hearth furnace patent

Patent US2488115 - Roaster furnace - Google Patents

In a multiple hearth roaster furnace having two or more floors with four diametrically opposed doors ... UNITED STATES PATENTS Name Date 882,730 Von Zeoewski ...

Multiple hearth furnace chamber - Free Patents Online

Mar 19, 1985· A multiple hearth furnace chamber where each arched or conical hearth is independently supported by the outer metal shell. An expansion joint below each hearth allows for vertical movement of the inte

MetallurgicalFurnaces -

Metallurgical Furnaces 1 MetallurgicalFurnaces For other industrial reactors and their applications, ... roasted in multiple-hearth furnaces. Ores that

Multiple Hearth Furnaces - Chavond-Barry Engineering

Click the button below to see the "Method and Apparatus for Operating a Multiple Hearth Furnace" patent developed and written by CBE President Louis T. Barry to learn more ..

Multiple hearth furnace - Free Patents Online

Feb 26, 2013· A multiple hearth furnace including a rabble arm with a tubular structure and a solid plug body. The latter is received in …

Leading experts in Multiple Hearth Furnace design, …

Multiple Hearth Furnaces can be built, or rebuilt with state-of-the-art control systems. Advanced Process Controls can be used to optimize

US Patent # 4,481,890. Method for controlling temperatures in the afterburner …

Method for controlling temperatures in the afterburner and combustion hearths of a multiple hearth furnace Abstract. The present invention relates to a method for efficiently incinerating waste material, particularly dewatered sludge, in a multiple hearth furnace by controlling the temperature of the individual hearths of the furnace within ...

Hankin Nichols Multiple Hearth Furnaces

Hankin is the world leader in custom designed multiple hearth furnaces (MHF) for a variety of process applications. Hankin-Nichols MHF technology has been successfully used for over 90 years.

Multiple Hearth Furnace For Reducing Iron Oxide

A multiple moving hearth furnace ... viewing the Multiple hearth furnace for reducing iron oxide patent info. - ... multiple hearth furnace for reducing iron …

Patent WO2008098842A1 - 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 (20) an annular main distribution channel (54, 54') for supplying a cooling gas to the rabble arms (26) and a central exhaust channel (56) for evacuating the cooling gas leaving said ...

Method of operating a multiple hearth furnace by Paul Wurth – AU ... - Patents

Get details on patent AU2002315327 - Method of operating a multiple hearth furnace by Paul Wurth and more at IP in Australia

Patent US4474121 - Furnace control method - Google Patents

Pat. No. 4,050,389 shows a multiple hearth furnace controlled so that it may continuously change from excess air ... Cited Patent Filing date Publication date

Multiple hearth furnace - Wikipedia

A multiple hearth furnace also known as a vertical calciner, is used for continuous preparation and calcining of materials.

Patent CA1223725A - Multiple hearth furnace chamber

MULTIPLE HEARTH FURNACE CHAMBER ABSTRACT A multiple hearth furnace chamber where each arched or conical hearth is independently supported by the outer metal shell. An expansion joint below each hearth allows for vertical movement of the interior refractory wall panels without significant vertical movement of the hearths.

Patent WO1992017738A1 - Concurrent-flow multiple hearth furnace …

An apparatus and process for the incineration of sewage sludge in a concurrent-flow multiple hearth (116) furnace-incinerator (110) which complies with the fundamental thermodynamic conditions required to establish a sustained and …

Multiple Hearth Furnaces | CMI Group

The Nesa Solution®, a leader for Multiple Hearth Furnaces (MHF), provides a full set of thermal solutions in the field of calcination and recrystallization, carbonization and activation, concentrate roasting, torrefaction…

US Patent # 4,702,694. Furnace with modular construction - Patents…

A multiple hearth furnace is constructed from a plurality of cylindrical heating chamber modules, connected in a vertical configuration. Each module contains a hollow hearth, which forms a floor in th

US4505210A - Multiple hearth furnace chamber - Google Patents

A multiple hearth furnace chamber where each arched or conical hearth is independently supported by the outer metal shell. An expansion joint below each hearth allows for vertical movement of the interior refractory wall panels without significant vertical movement of the hearths.

A Comparison of Fluid Bed and Multiple Hearth …

A Comparison of Fluid Bed and Multiple Hearth Biosolids Incineration Ky Dangtran ... The first multiple hearth furnace for biosolids incineration was built in 1935 in ...

multiple hearth furnace, BSP Thermal Systems Inc. History

BSP engineers and builds multiple hearth furnaces for ... Nichols Engineering obtained patent rights to the Herreshoff furnace which soon became the industry ...

News - Industrial Furnace Company

In partnership with Bloom Engineering, Industrial Furnace Company is proud to announce that it has received Patent No. 9,702,022 for de-coating aluminum scrap with a Multiple Hearth Furnace.

Patent US4116619 - Multiple beam furnace - Google Patents

A multiple beam furnace in which the ... The beams 16 and 20 each include an upper surface which forms part of the furnace hearth and are each ... Citing Patent ...

Component Costs for Multiple-Hearth Sludge …

Component Costs for Multiple-Hearth Sludge Incineration from Field Data* WALTER UNTERBERG and GEORGE R. SCHNEIDER Rocketdyne/Rockwell International

US Patent # 4,437,884. Ore roasting with recycle of gases - Patents…

Metal sulfide ores which contain organic matter are oxidized by roasting in a multiple hearth furnace, wherein at least a portion of gases formed during the oxidation is recycled from a higher-tempera

CPC Scheme - F27B FURNACES, KILNS, OVENS, OR …

of multiple-hearth type; ... {multiple hearth type furnaces} [2013-01] ... United States Patent and Trademark Office. Browse By Topic .

Annular hearth oven (Patent) |

Patent: Annular hearth oven. Annular hearth oven. Full Record; Similar; Inventors: ... A multiple moving hearth furnace (10) having a furnace housing ...

Development of Successful Poultry Litter-to-Energy …

Slot Jets are a new, patent pending method of introducing combustion air into the MHF furnace to ... Figure 2. Cut-Away of a Multiple Hearth Furnace ...

Patent US20090298001 - Roller Hearth Furnace for Healing and/or ... - Google

The invention relates to a roller hearth furnace (1) ... Roller Hearth Furnace for Healing and/or Temperature Equalisation of Steel or Steel ... in a multiple -strand ...

LU91312A1 - Multiple hearth furnace - Google Patents

MULTIPLE HEARTH FURNACE. Technical field [0001] The present invention generally relates to a multiple hearth furnace (MHF). Background Art [0002] Multiple hearth furnaces (MHFs) have been used now for about one century for heating or roasting many types of material.

multiple hearth furnace used equipment – Grinding …

Multiple Hearth Furnace ... multiple hearth furnaces often are used to calcine kaolin. ... Also used for hardening Multiple hearth furnace » Learn More. US Patent ...

Open hearth furnace - Wikipedia

Open hearth furnaces are one of a number of kinds of furnace where excess carbon and other impurities are burnt out of pig iron to produce steel is difficult to manufacture due to its high melting point, normal fuels and furnaces were insufficient and the open hearth furnace was developed to overcome this difficulty.

Delacquering - Gillespie & Powers, Inc.

Gillespie & Powers, Inc. ... Multiple Hearth Furnaces; Glass Furnace; Auxiliary Equipment; ... Delacquering; Incinerators; Multiple Hearth Furnaces;

multiple hearth furnace direct reduced iron -

Patent WO2008063897A2 - Multiple hearth furnace for , A multiple moving hearth furnace (10) having a furnace housing (11) with at least two moving hearths , [0006] Unlike conventional direct reduced iron .