Resources Contact Us Home
Process and apparatus for drying material with indirectly heated driers and for decontaminating waste gas

Image Number 6 for United States Patent #6058619.

A process and apparatus for drying material, particularly sludges, with indirectly heated driers includes a system for the thermal decontamination of exhaust air from the drier. Excess exhaust air from the drier loop is fed as secondary air to the heating boiler or furnace separately from the primary air for combustion of the fuel and to thermally clean the exhaust air from the drier. The exhaust drier gas from the drier remains in the furnace for a period to decontaminate the drier gas, after which it is mixed with the flue gases. The mixture is then removed from the furnace. The system is suitable for operation under normal operating temperatures and at low, below normal operating temperatures.

  Recently Added Patents
Apparatus for electrographic printing or copying
Cartridge for conducting a chemical reaction
Illumination apparatus
Distributive data capture
Image recording device, image recording method, and computer program product that adds a fluorescent-whitening-agent onto a recording sheet
System and method for passing PLC signals from a first electrical line to a second electrical line
  Randomly Featured Patents
Composite layered sheet of film for refrigerators
Modified flow throttle bore
Marine speedometer
LED collimation optics with improved performance and reduced size
Stereolithographic methods of fabricating semiconductor devices having protective layers thereon through which contact pads are exposed
High density self-aligned antifuse
Method for increasing the resolution of output signals from at least one measuring sensor on an internal combustion engine and corresponding controller
Process for preparing spheroidal alumina particles
Electrode for spot welding
Copolymers prepared by using both anionic polymerization techniques and coordination catalysts