A method for continuous smelting carbide slag

A technology of carbide slag and titanium carbide, which is applied in the field of metallurgy, can solve the problem that carbide slag cannot be continuously smelted in large quantities, and achieve the effects of high recycling value, stable CO concentration, and efficient smelting

Active Publication Date: 2019-07-02
PANGANG GROUP RESEARCH INSTITUTE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the defect that existing carbide slag cannot be smelted continuously and in large quantities, the present invention provides a method for continuously smelting carbide slag

Method used

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  • A method for continuous smelting carbide slag
  • A method for continuous smelting carbide slag

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Embodiment 1

[0026] This invention was implemented in a certain factory. In the working area, a carbonization electric furnace had a nominal capacity of 65t. Two small heating furnaces were installed in the north-south direction around the carbonization furnace. The nominal capacity of the heating furnaces was both 30t. The content of total titanium in the molten blast furnace slag is 13.60%, and the content of titanium dioxide is 23.32%. It is transported to the production operation area by a slag tank truck, and is directly poured into the heating furnace after the shell is broken by a heavy hammer. The heating furnace uses natural gas to heat the slag, and the heating time is about 56 minutes At the end of heating, the infrared thermometer measured the surface temperature of the slag to be 1582°C, and the team opened the slag. Sampling and chemical analysis showed that the total Ti content in the slag was 13.43%, the TiC content was 5.6%, and the titanium dioxide in the slag was converted...

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Abstract

The invention belongs to the metallurgic field and particularly relates to a method for continuously smelting carbide slag. The method comprises a heating stage and a reduction stage and particularlycomprises the steps of firstly heating titanium-containing slag until complete fusion, adding the fused titanium-containing slag into a smelting furnace, and carrying out reduction, so as to obtain the carbide slag. According to a process of the method, the extreme cooling and heating of a resistant material of a carbonization electric furnace can be avoided, so that the longevity of the resistantmaterial of the carbonization electric furnace is guaranteed, and the airtight, continuous and efficient smelting of the large-sized carbonization electric furnace can be realized.

Description

technical field [0001] The invention belongs to the field of metallurgy, and in particular relates to a method for continuously smelting carbide slag. In particular, it relates to a preparation method of carbide slag in the process of comprehensive utilization of blast furnace slag. Background technique [0002] Panxi is rich in titanium resources. Through the traditional blast furnace ironmaking-converter steelmaking process, most of the titanium enters the blast furnace slag, and the TiO in the blast furnace slag 2 The content is 20% to 26%. Since the establishment of Panzhihua Iron and Steel Co., Ltd., more than 65 million tons of blast furnace slag have been stockpiled. Aiming at Panzhihua Iron and Steel's blast furnace slag, many domestic research institutions have carried out research on various technical routes for titanium extraction, such as the production of silicon-titanium composite alloys and the production of slag glass-ceramic, etc., but the processing capaci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B7/04C22B34/12
CPCC22B7/001C22B7/04C22B34/1218Y02P10/20
Inventor 王东生杨仰军程晓哲黄家旭
Owner PANGANG GROUP RESEARCH INSTITUTE CO LTD
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