Method and apparatus for removing sand from castings
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 1, 1981
Grant Date -
N/A
app pub date -
Mar 3, 1980
filing date -
Jun 6, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a hydro-jet housing the form block, possibly with core, is stripped of mold sand by means of a high-pressure water jet. The sand is fed in the form of a muddy pulp to a first hydrocyclone, where the water is largely separated and is supplied for the formation of new muddy pulp. The sand flows into a scrubbing mechanism for knocking off its binding material, which has settled as a coat around the sand grains. After being scrubbed, the sand is fed to a second hydrocyclone for hydro-extracting water and dislodged binding material from the sand. The sand is then dried and cooled and is available for further use. The contaminated water is neutralized with flue gas, after which a flocculation agent is added to it and the water is then purified for reuse in a settling tank and possibly in a filter.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully