A method for mixing raw materials for sintering

A technology of raw materials and mixtures, applied in the direction of mixing methods, chemical instruments and methods, liquid and solid mixing, etc., can solve problems such as incomplete digestion of quicklime, clogging of digesters, etc., and achieve the goal of avoiding clogging, reducing smoke and dust, and reducing water vapor Effect

Active Publication Date: 2022-03-11
SGIS SONGSHAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention provides a new raw material mixing method for sintering production, which can avoid incomplete digestion of quicklime, and can also avoid a large amount of dust and blockage of the digester during the process of digesting quicklime. And other issues

Method used

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Embodiment Construction

[0006] The method will be described in further detail below in conjunction with specific embodiments.

[0007] A raw material mixing method for sintering production, comprising the steps of:

[0008] Taking the addition of 360 square meters of sintering machine as an example, the present invention is described. First, the sintered ore powder is added to the digester according to the weight of 129 tons per hour after weighing with an electronic belt according to the ratio of production needs. Add water to the digester at an amount of 24.6 tons per hour and mix it with sintered ore powder, then add quicklime at an amount of 22.58 tons per hour to the digester and mix it with wet returned ore powder and water, and then mix The mixture of good returned ore powder, water and quicklime, iron ore powder, fuel and other materials prepared according to the ratio are sent to the cylinder mixer together with the belt conveyor and mixed for sintering production. The effects after applyin...

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Abstract

The invention discloses a method for mixing raw materials produced by sintering, which comprises the following steps: firstly adding sintered return ore powder and water into a digester for mixing, then adding quicklime into the digester to mix with wet return ore powder and water, and then mixing Good returned ore powder and quicklime are sent to the cylinder mixer for mixing with the iron ore powder, fuel and other materials prepared according to the ratio. The invention can not only avoid the impact on the quality of sintered ore due to incomplete digestion of quicklime, but also avoid problems such as a large amount of dust generated in the process of digesting quicklime with a digester, blockage of the digester, and the like.

Description

technical field [0001] The patent of the present invention relates to a method for producing sintered ore, in particular to a method for mixing raw materials for sintering. Background technique [0002] At present, there are two kinds of raw material mixing processes for sintering production: one is to mix iron ore powder, returned ore powder, fuel, quicklime powder and other materials according to the ratio and send them to the cylinder mixer with a belt conveyor. Add water, and the quicklime powder is gradually digested during the mixing process. This method has a simple process, and the disadvantage is that the mixing time is short and the water content (5%-7%) of the mixture is low, which leads to poor digestion effect of quicklime powder. After the mixing is completed, the mixture also contains More undigested quicklime particles affect the output and quality of sinter. Another method is to add quicklime and water to the digester for digestion first, and then send the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F23/50B01F23/64C22B1/16
CPCC22B1/16B01F23/51B01F23/511B01F23/581B01F23/70
Inventor 陈科李圭文杨永俊周清林陈柏元张建桂王勤福方家悦谢紫峰师瑞红
Owner SGIS SONGSHAN CO LTD
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