Solid feeder and method

Title: Solid feeder and method

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Abstract

This invention provides a housing containing a rotatable coal bucket that is sealed at its ends in the housing with a reciprocal plunger that is sealed in the bucket at one end and has an opposite cone-shaped end that wedges up against a closed end of the bucket, and a method for feeding dry, variable size coal from an ambient atmosphere at low pressure into a high temperature, high pressure reactor between the seals for producing fuel gas substantially without losing any high pressure gas from the reactor or excessively wearing the seals. To this end, the piston biases the plunger back and forth for loading and unloading the bucket with coal along an axis that is separated from the seals, the bucket is rotated to unload the coal into the reactor so as to fill the bucket with trapped high pressure gas from the reactor while preventing the gas from escaping therefrom, and then the cone-shaped plunger end is wedged into mating engagement with the closed end of the bucket to displace this high pressure bucket gas by expelling it back into the reactor whereby the bucket can be re-rotated for filling it with coal again substantially without losingmore »« less

Inventors:

Hathaway, Thomas J ^[1]

Belle Meade, NJ

Issue Date:: 1979-01-01

OSTI Identifier:: 863323

Patent Number(s):: 4148405

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Classifications (CPCs):: C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10J - PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES

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C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10J - PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES
C10J3/78 - High-pressure apparatus
C10J3/723 - {Controlling or regulating the gasification process}
C10J2200/154 - Pushing devices, e.g. pistons
C10J2300/093 - Coal
C10J3/30 - Fuel charging devices

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DOE Contract Number:: E(49-18)-1974

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: solid; feeder; method; provides; housing; containing; rotatable; coal; bucket; sealed; reciprocal; plunger; opposite; cone-shaped; wedges; closed; feeding; dry; variable; size; ambient; atmosphere; pressure; temperature; reactor; seals; producing; fuel; gas; substantially; losing; excessively; wearing; piston; biases; forth; loading; unloading; axis; separated; rotated; unload; fill; trapped; preventing; escaping; therefrom; wedged; mating; engagement; displace; expelling; whereby; re-rotated; filling; ambient atmosphere; pressure gas; fuel gas; housing containing; mating engagement; gas substantially; pressure reactor; reactor whereby; solid feed; feeding dry; variable size; producing fuel; /414/

Citation Formats


                    Hathaway, Thomas J. Solid feeder and method.  United States: N. p., 1979. 
        Web.

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                    Hathaway, Thomas J. Solid feeder and method.  United States.

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                    Hathaway, Thomas J. Mon .  
        "Solid feeder and method".  United States.  https://www.osti.gov/servlets/purl/863323.

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@article{osti_863323,

  title        = {Solid feeder and method},

  author       = {Hathaway, Thomas J},

  abstractNote = {This invention provides a housing containing a rotatable coal bucket that is sealed at its ends in the housing with a reciprocal plunger that is sealed in the bucket at one end and has an opposite cone-shaped end that wedges up against a closed end of the bucket, and a method for feeding dry, variable size coal from an ambient atmosphere at low pressure into a high temperature, high pressure reactor between the seals for producing fuel gas substantially without losing any high pressure gas from the reactor or excessively wearing the seals. To this end, the piston biases the plunger back and forth for loading and unloading the bucket with coal along an axis that is separated from the seals, the bucket is rotated to unload the coal into the reactor so as to fill the bucket with trapped high pressure gas from the reactor while preventing the gas from escaping therefrom, and then the cone-shaped plunger end is wedged into mating engagement with the closed end of the bucket to displace this high pressure bucket gas by expelling it back into the reactor whereby the bucket can be re-rotated for filling it with coal again substantially without losing any of the high pressure gas or excessively wearing the seals.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1979},

  month        = {1}

}

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