Foster Wheeler Energy Corporation

Other

Robert D Stewart

Robert L Gamble

Thomas E Taylor

Bi-pod hunters blind

A vessel for separating entrained particles from a gas in which a vertically extending tubular portion extends through a portion of a housing for providing an outlet for the gas after separation from the particles. The tubular portion includes a tube formed into a spiral coil, and a continuous fin extends from the tube for the entire length of the tube. The fin is welded to adjacent sections of the tube to render the coil airtight. A layer of insulation material extends to both sides of the coil.

Spiral coil cool wall construction for high temperature cylindrical

A divided rotary valve feeder includes an inlet conduit, an outlet divided into a plurality of passages by webs, and rotor mounted between the inlet conduit and the outlet. The rotor includes vanes defining troughs and partitions dividing the troughs into a plurality of compartments. The partitions engage the webs to assure discharge of material from each compartment to an aligned passage, and the passages are in communication with conveyors for moving the material to a point of use. Tiltable splitter plates may be provided in the inlet conduit in engagement with the partitions to evenly distribute the flow of material to the compartments in each trough. Compressed air or other gas may be fed to each of the compartments to assist the discharge of material either by direct contact or by flexing a flexible boot in each compartment.

Divided rotary valve feeder

A fluidized bed reactor in which at least a portion of the walls of the reactor housing are formed by a plurality of water wall tubes. A fluidized bed is formed in the housing and a plurality of heat exchange tubes are provided, at least a portion of each of which extends into the bed. One or both ends of each heat exchange tube registers with a water wall tube and a water flow circuit is formed that includes the water wall tubes and heat exchange tubes for passing the water in a heat exchange relation with the bed.

Fluidized bed reactor utilizing in-bed heat exchanger tubes which

A method of operating a fluidized bed heat exchanger in which a perforated plate is disposed within a housing for supporting a bed of particulate material which is introduced into the housing through an inlet. Air is passed through the plate to fluidize the particulate material and a drain pipe is provided for discharging the spent material from the bed. The flow rate of air introduced into the bed is increased in a direction across said bed from said inlet to said drain pipe to promote the circulation of the bed materials from the inlet to the drain pipe.

Method of operating a fluidized bed heat exchanger utilizing induced

A fluidized bed heat exchanger in which a perforated plate is disposed within a housing for supporting a bed of particulate material which is introduced into the housing through an inlet. Air is passed through the plate to fluidize the particulate material and a drain pipe is provided for discharging the spent material from the bed. The flow rate of air introduced into the bed is increased in a direction across said bed from said inlet to said drain pipe to promote the circulation of the bed materials from the inlet to the drain pipe.

Fluidized bed heat exchanger utilizing induced circulation

A fluidized bed heat exchanger having a perforated support plate supporting relatively lightweight absorbent material particles and relatively heavy fuel ash particles includes a drain through which a flow of air defining a separating air screen retains the adsorbent material particles in the bed but allows the fuel ash particles to fall into the drain.

Fluidized bed heat exchanger having separating drain and method of

A fluidized bed boiler, and a method of operating same in which air is passed through a grate to fluidize a bed of particulate material containing fossil fuel disposed on the grate. A raw acceptor for the sulfur produced as a result of the combustion of the fuel is introduced into the housing and confined within an area of the housing isolated from the bed of particulate material. The area containing the acceptor is maintained at conditions optimal for calcining the acceptor, after which the latter is introduced into the fluidized bed.

Method of capturing sulfur

A fluidized bed reactor in which a grate is disposed in a housing for receiving a single bed of particulate material. The interior of the housing below the grate is divided into a plurality of zones and air is selectively passed through portions of the grate to fluidize corresponding portions of the bed above the zones. A plurality of air distributors are provided in the bed for reducing the height of the particulate material accumulating in various portions of the bed.

Fluidized bed reactor utilizing zonal fluidization and anti-mounding air

A fluidized bed heat exchanger in which a perforated plate is disposed within a housing for supporting a bed of particulate material. Air is passed through the plate to fluidize the particulate material and a mixture of air and additional particulate material is introduced to said bed and deflected into said bed in a manner to induce diffusion and circulation of the bed materials in the bed.

Fluidized bed heat exchanger utilizing induced diffusion and circulation

A fluidized bed heat exchanger in which a perforated plate is disposed within a housing for supporting a bed of particulate material which is introduced into the housing through an inlet. Air is passed through the plate to fluidize the particulate material and a drain pipe is provided for discharging the spent material from the bed. A plurality of nozzles are provided in association with the perforations in the plate for directing air toward the drain pipe to promote the circulation of the bed materials from the inlet to the drain pipe.

Fluidized bed heat exchanger incorporating induced circulation utilizing

A fluidized bed heat exchanger in which a bed of particulate material is supported on a grate in a housing and air is passed through the grate and the particulate material to fluidize the bed and promote the combustion of combustible material contained therein. A baffle system is disposed in the housing for impacting with the entrained particulate material in the air and gaseous products of combustion to remove the latter material and permit it to fall by gravity back to the bed. A series of tube sections are provided in the housing for directing the air and gaseous products to the baffle means and gases are injected from the proximity of the baffle means downwardly towards the bed.

Fluidized bed heat exchanger utilizing a baffle system

A fluidized bed reactor in which a grate is disposed in a housing for receiving a single bed of particulate material. The interior of the housing below the grate is divided into a plurality of zones and air is selectively passed through portions of the grate to fluidize corresponding portions of the bed above the zones. A plurality of pipes are provided in the bed for receiving excess particulate material accumulating in various portions of the bed and for blowing air into said latter portion, to reduce the build-up of particulate material in the bed.

Fluidized bed reactor utilizing zonal fluidization and anti-mounding

A fluidized bed heat exchanger in which a perforated plate is disposed within a housing for supporting a bed of particulate material. Air is passed through the plate to fluidize the particulate material and nozzles are provided for distributing air across the inlet end of a drain pipe for the spent particulate material to insure a continuous draining of the material.

Growing community of inventors

Verona, NJ, United States of America

Robert D Stewart