Rich-oxygen top-blown smelting/liquid high-lead slag side-blown direct-reduction lead smelting equipment
A technology of oxygen-enriched top blowing and high lead slag is applied in oxygen-enriched top blowing smelting-liquid high lead slag side blowing direct reduction lead smelting equipment, lead smelting equipment, and can solve the problem of poor operating environment of blast furnace and low direct metal recovery rate , the problem of high energy consumption, to achieve the effect of small thermal energy loss, reduced energy consumption, and high metal recovery rate
Active Publication Date: 2014-08-20
CHINA ENFI ENGINEERING CORPORATION +1
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Problems solved by technology
The high-lead slag-blast furnace process in the related art requires cooling of the high-lead slag after smelting, using a slag casting machine to cast slag, and utilizing a blast furnace for reduction, so that energy consumption is high, the direct metal recovery rate is low, the operating environment of the blast furnace is poor, and the blast furnace production The use of coke has the disadvantage of high cost
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[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention.
[0021] The lead smelting equipment according to the embodiments of the present invention will be described below with reference to the accompanying drawings. The lead smelting equipment according to the embodiments of the present invention can also be called oxygen-enriched top blowing smelting-liquid high lead slag side blowing direct reduction lead smelting equipment
[0022] The lead smelting equipment according to the embodiment of the present invention mainly includes an oxygen-rich top blowing smel...
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The invention discloses lead smelting equipment. The lead smelting equipment comprises a rich-oxygen top-blown smelting furnace and a liquid high-lead slag side-blown reduction furnace. The rich-oxygen top-blown smelting furnace comprises a top-blown furnace body ad a top-blown gun blowing oxygen-containing air from the top of the top-blown furnace body to the inside of the top-blown furnace body. The top-blown furnace body is provided with a top-blown furnace feeding opening, a top-blown furnace flue outlet, a melt high-lead slag outlet and a primary crude lead outlet. The liquid high-lead slag side-blown reduction furnace comprises a side-blown furnace body ad a side-blown gun blowing fuel and oxygen-containing air from a side of the side-blown furnace body to the inside of the top-blown furnace body. The side-blown furnace body is provided with a side-blown furnace feeding opening, a side-blown furnace flue outlet, a melt high-lead slag inlet connected to the melt high-lead slag outlet, a secondary crude lead outlet and a side-blown furnace slag outlet. According to the lead smelting equipment, oxygen top blowing is adopted for smelting and side blowing is adopted to perform liquid high-lead slag side-blown reduction, so that the energy consumption and the cost are low, the environment protection property is good and the metal recovery rate is high.
Description
Technical field [0001] The present invention relates to the technical field of non-ferrous metallurgy, in particular to a lead smelting equipment, and more particularly to an oxygen-rich top blowing smelting-liquid high lead slag side blowing direct reduction lead smelting equipment. Background technique [0002] China is the world's largest lead producer and consumer. In 2012, lead production reached 4.646 million tons and consumption was 4.51 million tons. China is also a country with poor lead mine resources. In 2012, the lead content of mine lead was only 2.838 million tons, which is far from enough. For the production needs of lead smelting in my country, most of the lead raw materials need to be imported. The traditional lead smelting process is sintering-blast furnace reduction smelting, but it has the disadvantages of high energy consumption and serious pollution. Related technologies have also proposed the oxygen bottom blowing oxidation-blast furnace reduction process (...
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IPC IPC(8): C22B13/02
Inventor 王忠实沈立俊邢国华孙成余邓兆磊贾著红陈学刚保自坤李炬蒋荣生黎敏庄福礼俞兵杨伟马绍斌王勇张成江
Owner CHINA ENFI ENGINEERING CORPORATION