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You searched for: Date ca. 1960-1970 Remove constraint Date: ca. 1960-1970 Topical Subjects Coal Mines and Mining--Mine Interiors--Machinery. Remove constraint Topical Subjects: Coal Mines and Mining--Mine Interiors--Machinery.
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Mechanic working on what appears to be a turbine.

1. Mechanic Working on Mining Machinery

IDNO:
002751
Title:
Mechanic Working on Mining Machinery
Date:
ca. 1960-1970
Description:
Mechanic working on what appears to be a turbine.
Coal crushed to 3/16-inch by 0 is pumped to a pulverizer that grinds it to 90-per cent hrough 200-mesh. The product is mixed with air and burned in the combustors. Hot high-speed gas from the ash separators drives the turbine, air compressor, and electric generators. Exhaust from the turbine passes through a regenerator that preheats compressed air to the combustors. If used, please credit Bureau of Mines, U.S. Department of the Interior.

2. Schematic Diagram of Coal-Fired Gas Turbine

IDNO:
002690
Title:
Schematic Diagram of Coal-Fired Gas Turbine
Date:
ca. 1960-1970
Description:
Coal crushed to 3/16-inch by 0 is pumped to a pulverizer that grinds it to 90-per cent hrough 200-mesh. The product is mixed with air and burned in the combustors. Hot high-speed gas from the ash separators drives the turbine, air compressor, and electric generators. Exhaust from the turbine passes through a regenerator that preheats compressed air to the combustors. If used, please credit Bureau of Mines, U.S. Department of the Interior.
'A small portion of the hot ash-laden gas stream entering the turbine is continuously removed by this ash-sampling unit. Data from the operation of this unit is analyzed to determine the concentration, size, and composition of the ash in the hot gases entering the turbine.'

3. Sampling Hot Ash-Laden Gas

IDNO:
002686
Title:
Sampling Hot Ash-Laden Gas
Date:
ca. 1960-1970
Description:
'A small portion of the hot ash-laden gas stream entering the turbine is continuously removed by this ash-sampling unit. Data from the operation of this unit is analyzed to determine the concentration, size, and composition of the ash in the hot gases entering the turbine.'