Title:
METHOD FOR TREATING WASTE MATERIAL IN FOUNDRY, AND SYSTEM FOR TREATING TOXIC SUBSTANCE IN MOLDING SAND
Document Type and Number:
WIPO Patent Application WO/2013/035435
Kind Code:
A1
Abstract:
[Purpose] To provide a technology such that a toxic substance contained in waste sand and waste collected dust from a foundry, such as heavy metals, fluorine, and boron, can be insolubilized at low cost.
[Solution] A method and system for treating a toxic substance in molding sand insolubilize, with the use of an insolubilizing agent, a toxic substance in molding sand used in a casting line for manufacturing a casting. In a dust collecting process for transporting dust produced in a recycling process for recycling molding sand to a dust collecting apparatus (1), an insolubilizing agent is added and caused to become attached to the dust surface.
Inventors:
SUZUKI MASAKI (JP)
YAMAZAKI TAKURO (JP)
YAMAZAKI TAKURO (JP)
Application Number:
PCT/JP2012/068081
Publication Date:
March 14, 2013
Filing Date:
July 17, 2012
Export Citation:
Assignee:
SINTOKOGIO LTD (JP)
SUZUKI MASAKI (JP)
YAMAZAKI TAKURO (JP)
SUZUKI MASAKI (JP)
YAMAZAKI TAKURO (JP)
International Classes:
B22C5/00; A62D3/33; B09B3/00; B22C5/04; A62D101/43
Foreign References:
| JP2011121097A | 2011-06-23 | |||
| JP2008264641A | 2008-11-06 | |||
| JP2010172813A | 2010-08-12 | |||
| JP2009072730A | 2009-04-09 | |||
| JP2003053294A | 2003-02-25 |
Attorney, Agent or Firm:
YAMASAKI, Yukuzo et al. (JP)
Yukuzo Yamazaki (JP)
Yukuzo Yamazaki (JP)
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Claims: