Solids feed nozzle for fluidized bed

Zielinski, Edward A

Title: Solids feed nozzle for fluidized bed

Full Record
Other Related Research

Abstract

The vertical fuel pipe of a fluidized bed extends up through the perforated support structure of the bed to discharge granulated solid fuel into the expanded bed. A cap, as a deflecting structure, is supported above the discharge of the fuel pipe and is shaped and arranged to divert the carrier fluid and granulated fuel into the combusting bed. The diverter structure is spaced above the end of the fuel pipe and provided with a configuration on its underside to form a venturi section which generates a low pressure in the stream into which the granules of solid fuel are drawn to lengthen their residence time in the combustion zone of the bed adjacent the fuel pipe.

Inventors:

Zielinski, Edward A ^[1]

Harwinton, CT

Issue Date:: 1982-01-01

Research Org.:: Combustion Engineering, Inc., Windsor, CT (United States)

OSTI Identifier:: 864099

Patent Number(s):: 4309948

Assignee:: Combustion Engineering, Inc. (Windsor, CT)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23C - METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN {A CARRIER GAS OR} AIR

Show more

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J8/0025 - {by an ascending fluid}

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23C - METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN {A CARRIER GAS OR} AIR
F23C10/22 - Fuel feeders specially adapted for fluidised bed combustion apparatus

Show less

DOE Contract Number:: EX-76-C-01-2473

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: solids; feed; nozzle; fluidized; bed; vertical; fuel; pipe; extends; perforated; support; structure; discharge; granulated; solid; expanded; cap; deflecting; supported; shaped; arranged; divert; carrier; fluid; combusting; diverter; spaced; provided; configuration; underside; form; venturi; section; generates; pressure; stream; granules; drawn; lengthen; residence; time; combustion; zone; adjacent; carrier fluid; solid fuel; residence time; combustion zone; fluidized bed; support structure; combusting bed; expanded bed; feed nozzle; solids feed; bed extends; bed adjacent; /110/122/431/

Citation Formats


                    Zielinski, Edward A. Solids feed nozzle for fluidized bed.  United States: N. p., 1982. 
        Web.

Copy to clipboard


                    Zielinski, Edward A. Solids feed nozzle for fluidized bed.  United States.

Copy to clipboard


                    Zielinski, Edward A. Fri .  
        "Solids feed nozzle for fluidized bed".  United States.  https://www.osti.gov/servlets/purl/864099.

Copy to clipboard


                    
@article{osti_864099,

  title        = {Solids feed nozzle for fluidized bed},

  author       = {Zielinski, Edward A},

  abstractNote = {The vertical fuel pipe of a fluidized bed extends up through the perforated support structure of the bed to discharge granulated solid fuel into the expanded bed. A cap, as a deflecting structure, is supported above the discharge of the fuel pipe and is shaped and arranged to divert the carrier fluid and granulated fuel into the combusting bed. The diverter structure is spaced above the end of the fuel pipe and provided with a configuration on its underside to form a venturi section which generates a low pressure in the stream into which the granules of solid fuel are drawn to lengthen their residence time in the combustion zone of the bed adjacent the fuel pipe.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1982},

  month        = {1}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Solid fuel feed system for a fluidized bed

Patent Jones, Brian C [Windsor, CT]

A fluidized bed for the combustion of coal, with limestone, is replenished with crushed coal from a system discharging the coal laterally from a station below the surface level of the bed. A compartment, or feed box, is mounted at one side of the bed and its interior separated from the bed by a weir plate beneath which the coal flows laterally into the bed while bed material is received into the compartment above the plate to maintain a predetermined minimum level of material in the compartment.
Full Text Available
Fluidized-bed calciner with combustion nozzle and shroud

Patent Wielang, Joseph A [Idaho Falls, ID]; Palmer, William B [Shelley, ID]; Kerr, William B [Idaho Falls, ID]

A nozzle employed as a burner within a fluidized bed is coaxially enclosed within a tubular shroud that extends beyond the nozzle length into the fluidized bed. The open-ended shroud portion beyond the nozzle end provides an antechamber for mixture and combustion of atomized fuel with an oxygen-containing gas. The arrangement provides improved combustion efficiency and excludes bed particles from the high-velocity, high-temperature portions of the flame to reduce particle attrition.
Full Text Available
Fluidized bed boiler feed system

Patent Jones, Brian C [Windsor, CT]

A fluidized bed boiler feed system for the combustion of pulverized coal. Coal is first screened to separate large from small particles. Large particles of coal are fed directly to the top of the fluidized bed while fine particles are first mixed with recycled char, preheated, and then fed into the interior of the fluidized bed to promote char burnout and to avoid elutriation and carryover.
Full Text Available
Method of feeding particulate material to a fluidized bed

Patent Borio, Richard W [Somers, CT]; Goodstine, Stephen L [Windsor, CT]

A centrifugal spreader type feeder that supplies a mixture of particulate limestone and coal to the top of a fluidized bed reactor having a flow of air upward therethrough. Large particles of particulate matter are distributed over the upper surface of the bed to utilize the natural mixing within the bed, while fine particles are adapted to utilize an independent feeder that separates them from the large particles and injects them into the bed.
Full Text Available
Method and apparatus for the separation of a gas-solids mixture in a circulating fluidized bed reactor

Patent Vimalchand, Pannalal [Birmingham, AL]; Liu, Guohai [Birmingham, AL]; Peng, WanWang [Birmingham, AL]

The system of the present invention includes a centripetal cyclone for separating particulate material from a particulate laden gas solids stream. The cyclone includes a housing defining a conduit extending between an upstream inlet and a downstream outlet. In operation, when a particulate laden gas-solids stream passes through the upstream housing inlet, the particulate laden gas-solids stream is directed through the conduit and at least a portion of the solids in the particulate laden gas-solids stream are subjected to a centripetal force within the conduit.
Full Text Available

Similar Records