发明名称 |
SCALE REMOVING METHOD AND SCALE REMOVING DEVICE |
摘要 |
<p>A scale removing apparatus 7 in accordance with the present invention subjects the internal surface of the steel pipe 3 to a blasting process wherein abrasive particles (not shown) are ejected through a high-pressure jet nozzle 2 and collide with the internal surface of the steel pipe 3. The scale removing apparatus 7 has the high-pressure jet nozzle 2 for ejecting the abrasive particle, a dust collector 4 for collecting dust particles after blasting, and restraining means 6 for restraining air from flowing into the steel pipe 3 from an end part of the steel pipe 3 due to the flow of abrasive particle ejected through the high-pressure jet nozzle 2. Therefore, the scale can be removed without scattering of dust particles into the atmosphere even with a low-capacity dust collector.</p> |
申请公布号 |
EP2283971(A1) |
申请公布日期 |
2011.02.16 |
申请号 |
EP20090725423 |
申请日期 |
2009.03.24 |
申请人 |
SUMITOMO METAL INDUSTRIES, LTD. |
发明人 |
KUROIWA, YOSHIYUKI;SAKAMOTO, AKIHIRO;MORIMOTO, GENJI |
分类号 |
B24C3/32;B24C3/16;B24C9/00 |
主分类号 |
B24C3/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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