Method for increasing output of sintering process

A production and process technology, applied in the field of increasing the output of the sintering process, can solve the problems of a large increase in the amount of quicklime, the inability to reduce the amount of quicklime, and the increase of sintering raw materials.

Inactive Publication Date: 2013-02-13
CHINA STEEL
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Problems solved by technology

However, the method of this sintering technology is quite complicated, and although quicklime is only added to half of the raw materials at the initial stage, it is still operated in a way of fully mixing raw materials in the end, which cannot achieve the effect of reducing the amount of quicklime
[0007] In summary, although the technology of replacing limestone with quicklime can increase the sintering yield, the above-mentioned operation method of mixing all the sintering raw materials and then sintering will increase the consumption of quicklime, which will not only increase the cost of sintering raw materials, but also more likely Increase the emission of sintering waste gas and dust
[0008] Therefore, there is an urgent need for a sintering technology that can not only effectively increase the output of the sintering process, but also avoid the problems of a large increase in sintering raw materials and an increase in the emission of sintering waste gas and dust

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  • Method for increasing output of sintering process
  • Method for increasing output of sintering process
  • Method for increasing output of sintering process

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Embodiment Construction

[0021] Please refer to FIG. 1 , which is a histogram depicting the yield of sintered ore obtained by adding no quicklime, adding 1wt% quicklime and completely mixing with the sintering raw material, and adding 1wt% quicklime in the upper 40% of the sintering raw material. Under the same configuration of sintering raw materials, the yields of the sintering raw materials without adding quicklime, adding 1wt% quicklime and completely mixing with the sintering raw materials, and adding 1wt% quicklime in the upper 40% of the sintering raw materials were measured. From Figure 1, the inventor found that under the same configuration of sintering raw materials, adding 1wt% quicklime to all the sintering raw materials, the sintering yield can be better than that of sintering raw materials without adding quicklime. However, if only 1wt% of quicklime is mixed in the upper part of the sintering raw material, that is, 40% of the upper part of the sintering raw material, then under the same r...

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Abstract

A method for increasing the output of a sintering process comprises the following steps: dividing a sintering mixture into a first part and a second part; mixing quicklime with the first part to form a quicklime doped sintering mixture; laying the quicklime doped sintering mixture on a sintering support table to form a first sintering subbed on the sintering support table; laying the second part on the first sintering subbed to form a second sintering subbed on the first sintering subbed; and sintering a sintering bed formed through the stacking of the first sintering subbed and the second sintering subbed.

Description

technical field [0001] The present invention relates to a sintering process, and in particular to a method of increasing the throughput of a sintering process. Background technique [0002] The sintering raw materials for the production of sintering ore for blast furnaces are mainly CaO-containing raw materials such as iron ore powder, limestone or dolomite with an average particle size of about 1.0mm~5.0mm, as well as silicon coke and smokeless media. When making sintered ore, first put the sintered raw materials into the drum machine for mixing, while adding an appropriate amount of water, perform mixing, humidity control and granulation, so as to form granulated sintering with an average particle size of about 3.0mm~6.0mm raw material. Next, the granulated and sintered raw materials are distributed on the mobile sintering machine trolley by a drum feeder to form a loading layer (also called a sintering bed) with a thickness of about 600mm~800mm. Subsequently, the charco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/22
Inventor 林铭锋
Owner CHINA STEEL
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