Smelting ladle and method for improving use efficiency thereof

US9989313B2 · kind B2 · utility

Assignee

• WUGANG REFRACTORY CO., LTD. · CN

Inventors

• Xueqin HONG · 红钢城街道, CN
• Xianming TIAN · 红钢城街道, CN
• Hui Zhou · Dalian, CN
• Zhiqiang Wang · South Glastonbury, US
• Qinxue MA · 红钢城街道, CN
• Zhongxing LEI · 红钢城街道, CN
• Zhiming CAO · 红钢城街道, CN
• Huasheng Liu · Beijing, CN
• Qing Zhao · 流花街道, CN
• Bihui YI · 红钢城街道, CN
• Yuhan DIAO · 红钢城街道, CN

Key dates

• Filing date: Mar 29, 2016
• Grant date: Jun 5, 2018
• Expiry date: Apr 23, 2036

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F27D2005/0075
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

A smelting ladle and a method for improving use efficiency thereof. The smelting ladle includes a housing, a working layer, and a permanent layer. The method includes: 1) rebuilding the working layer to have an outer layer and an inner layer, the inner layer being a consumable working layer which contacts with molten steel and steel slag, and the outer layer being a circulating working layer which contacts with the permanent layer or directly contacts with the housing; 2) allowing the smelting ladle to work, when the thickness of the consumable working layer is reduced to be between 0 and 20 mm, removing a residue of the consumable working layer and masoning a new consumable working layer for the smelting ladle; and 3) repeating 2) until the circulating working layer reaches a designed service life thereof, and casting a new circulating working layer for the smelting ladle.