Foundry sand reclamation

Patent · Tue May 22 04:00:00 EDT 1984

OSTI ID:6357963

Filipovitch, A J; Bleuenstein, J M

A dry method of conditioning spent foundry sand is disclosed. After having sized the sand and removal of tramp metallic elements, the sand is subjected to a sequence of squeezing under a high-stress low kinetic energy system for a period of 5-30 minutes, and then propelled against a target with high-kinetic energy in the presence of a suction for several minutes. This sequence can be preferably repeated to increase the quality of the resulting product which should have 0.1% or less of fine particles, a pH of 6-9, a clay content and organic combustible content of substantially zero. The reclaimed sand will exhibit a density of at least 100 grams/biscuit when compacted for core making or molding.

• Assignee: Ford Motor Co.
• Patent Number(s): US 4449566
• OSTI ID: 6357963
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
42 ENGINEERING
420900 -- Engineering-- Waste Processing Plants & Equipment-- (-1989)
CLAYS
CONCENTRATORS
CONTROL
DENSITY
ELEMENTS
ENERGY
FABRICATION
FOUNDRIES
INDUSTRIAL PLANTS
KINETIC ENERGY
MAGNETIC SEPARATORS
MANAGEMENT
METALS
MOLDING
PARTICLE SIZE
PH VALUE
PHYSICAL PROPERTIES
PROCESSING
QUALITY CONTROL
RECYCLING
SAND
SIZE
SIZING
WASTE MANAGEMENT
WASTE PROCESSING