发明名称 |
METHOD FOR RECYCLING OF A COUNTERWEIGHT |
摘要 |
<p>The present invention provides a counterweight and a counterweight-recycling method capable of having excellent workability, capable of reducing manufacturing costs, and capable of achieving environmental conservation. A metal portion contained in slag produced in an iron making process or in residue in a waste treatment furnace is used as a weight material of a counterweight (10). A method of recycling the counterweight (10) includes a removing step of removing an outer shell (15) of a used counterweight (10) that has used a magnetic metal portion as a weight material, a crushing/cutting step of crushing a filler containing the metal portion of the counterweight (10) from which the outer shell (15) has been removed and cutting a combined state between the metal portion and the other filler portion, and a separating step of separating processed products obtained in the crushing/cutting step into high-specific-gravity substances composed chiefly of the metal portion and into other low-specific-gravity substances, in which the high-specific-gravity substances are used as weight materials of a counterweight to be newly manufactured. <IMAGE></p> |
申请公布号 |
EP1431464(B1) |
申请公布日期 |
2009.11.11 |
申请号 |
EP20020762862 |
申请日期 |
2002.08.26 |
申请人 |
CATERPILLAR JAPAN LTD. |
发明人 |
NAKAJIMA, NORIO;KATAOKA, SHUICHI;KUMAMOTO, HIROSHI |
分类号 |
E02F9/18;B03B9/06;B03C1/00;B03C1/10;B03C1/12;B03C1/14;B07B4/02;B07B9/00;B09B5/00;B66C23/74;C04B18/16;C22B7/00;C22B7/04 |
主分类号 |
E02F9/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|