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  2. Pulverized coal-fired boiler - Wikipedia

    en.wikipedia.org/wiki/Pulverized_coal-fired_boiler

    The concept of burning coal that has been pulverized into a fine powder stems from the belief that if the coal is made fine enough, it will burn almost as easily and efficiently as a gas. The feeding rate of the pulverized coal is controlled by computers, and is varied according to the boiler demand and the amount of air available for drying ...

  3. Incineration - Wikipedia

    en.wikipedia.org/wiki/Incineration

    The burn barrel is a somewhat more controlled form of private waste incineration, containing the burning material inside a metal barrel, with a metal grating over the exhaust. The barrel prevents the spread of burning material in windy conditions, and as the combustibles are reduced they can only settle down into the barrel.

  4. Rocket mass heater - Wikipedia

    en.wikipedia.org/wiki/Rocket_mass_heater

    The fire can only burn sideways toward the direction of the heat riser, since the insulated tube which connects the wood feed to the heat riser is the only available path for the flow of air. [ 14 ] When fire reaches the heat riser, the J-tube design diverts flames upwards into the highly insulated combustion chamber, which allows heat energy ...

  5. Construction barrel - Wikipedia

    en.wikipedia.org/wiki/Construction_Barrel

    A construction barrel with a barricade light affixed to its handle in Florida. Construction barrels (coloqually known as "drums" in the United States) are traffic control devices used to channel motor vehicle traffic through construction sites or to warn motorists of construction activity near the roadway.

  6. Gas burner - Wikipedia

    en.wikipedia.org/wiki/Gas_burner

    Propane burner with a Bunsen flame Oxy-Acetylene for cutting through steel rails Flame of a gas and oil, in a dual burner. A gas burner is a device that produces a non-controlled flame by mixing a fuel gas such as acetylene, natural gas, or propane with an oxidizer such as the ambient air or supplied oxygen, and allowing for ignition and ...

  7. Thermal lance - Wikipedia

    en.wikipedia.org/wiki/Thermal_lance

    A thermal lance, thermic lance, oxygen lance, or burning bar is a tool that heats and melts steel in the presence of pressurized oxygen to create very high temperatures for cutting. It consists of a long steel tube packed with alloy steel rods, which serve as fuel; these are sometimes mixed with aluminum rods to increase the heat output.