Treatment method for metal bearing oily waste

Patent · Tue Apr 10 00:00:00 EST 1984

OSTI ID:6283433

Most, I G; Hubble, W S

A continuous process and system for treatment of oily waste products and heavy sludge resulting from the washing of scrap metal fragments bathed in oil. The sludge and oily waste both include a mixture of water, ferrous containing particulates and a hydrocarbon liquid. The process of this invention includes feeding the heavy sludge and oily waste into an incinerator, incinerating the hydrocarbon liquid contained therein at conditions such that the metal contained therein is recovered as particulate ash, and venting the resulting combustion gases to the atmosphere. The system of this invention includes an incinerator, an auger for transporting heavy sludge from the scrap washer to the incinerator, a pump and storage tank for feeding oily waste from the scrap wash water to the incinerator, and a baghouse for filtering the combustion gases and exhausting them to the atmosphere. A second auger may be provided for transporting sludge from a sludge storage tank, and a water heater may be provided for passing the combustion gases in heat exchange relationship with wash water. The incinerator utilizes a starved air principle and includes a primary chamber and a secondary chamber where temperatures and oxygen levels are carefully controlled. The ferromagnetic ash from the incinerator and the particulates recovered in the baghouse can be sold for scrap.

• Assignee: Kramer Industries Inc.
• Patent Number(s): US 4441922
• OSTI ID: 6283433
• Resource Relation: Patent File Date: Filed date 21 Apr 1982; Other Information: PAT-APPL-370397
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
LIQUID WASTES
MATERIALS RECOVERY
SLUDGES
ASHES
DEMETALLIZATION
FERROMAGNETIC MATERIALS
HYDROCARBONS
INCINERATORS
MATERIALS HANDLING EQUIPMENT
METALS
PARTICULATES
PUMPS
REMOVAL
SCRAP METALS
TANKS
WASHING
CLEANING
CONTAINERS
ELEMENTS
EQUIPMENT
MAGNETIC MATERIALS
MANAGEMENT
MATERIALS
ORGANIC COMPOUNDS
PARTICLES
PROCESSING
RECOVERY
RESIDUES
SCRAP
SEPARATION PROCESSES
SOLID WASTES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
320305* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management