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A method and device for optimizing sintering moisture

A technology of moisture and pre-sintering, applied in the field of sintering, can solve the problems of air permeability deterioration, achieve the effects of optimizing air permeability, increasing sintering speed, and avoiding over-humidity of materials

Active Publication Date: 2020-05-19
ZENITH STEEL GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of water distribution, generally speaking, the water distribution of the mixture and the air permeability of the material layer present an inverted V-shaped relationship; appropriately increasing the water content can help improve the ball-forming quality during the second mixing process and increase the air permeability of the material layer, but the water content is too high the air permeability deteriorates

Method used

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  • A method and device for optimizing sintering moisture
  • A method and device for optimizing sintering moisture
  • A method and device for optimizing sintering moisture

Examples

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Embodiment 1

[0014] see figure 2 and image 3 , a device for optimizing sintering water content, including batching chamber 1, primary cylinder mixer 2, secondary cylinder mixer 3, distribution mine tank 4, sintering machine 5, ring cooler 6 and three times The element vibrating screen 7 also includes an ejector 8 and an induced draft fan 9, the air inlet of the ejector is connected with the distribution mine trough, and the air outlet of the ejector is arranged above the cloth layer in the sintering machine; The air inlet is connected to the exhaust gas outlet at the end of the ring cooler, and the air outlet of the induced draft fan is connected to the distribution mine trough.

[0015] Based on the above-mentioned device for optimizing sintering moisture, a method for optimizing sintering moisture includes the steps of batching, mixing and granulating, preheating and distribution, ignition and sintering, cooling and screening. The purpose is to preheat the mixture by cooling the wast...

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Abstract

The invention provides a method and device for optimizing sintering moisture, the steps of which include batching, mixing and granulating, preheating and distribution, ignition and sintering, cooling and screening. The present invention provides a method and device for optimizing sintering moisture, the purpose of which is to preheat the mixture by cooling the waste flue gas, appropriately reduce the moisture added for mixing and granulation, reduce the excessive humidity in the sintering process, and thereby improve the sintering efficiency of the material. The sintering speed in the process has the effect of increasing the production of sintering. The steam generated by the exhaust gas preheating material is introduced to the sintering material layer by the ejector for steam injection on the material surface. Ultimately, the process realizes sintering production increase by optimizing the reasonable distribution of moisture in the sintering process.

Description

technical field [0001] The invention belongs to the field of sintering, in particular to a method and device for optimizing sintering moisture. Background technique [0002] The sintering process of iron ore powder is the process of sintering powdered ore or fine powder with flux and fuel to form ore; in this process, mixing and granulating is the key part, and various fine materials are mixed in the mixer Granulate into small balls of quasi-granules, and then sinter; the ratio of small balls + 3mm represents the quality of the granulation effect, and a good granulation effect helps to improve the air permeability of the mixture layer on the sintering trolley. Thereby, the sintering speed and output of the sintering machine can be increased. Many measures have traditionally been taken around improving the granulation effect, such as optimizing water distribution (see figure 1 ), change the filling rate and the speed of the mixer, use a strong mixing device or a pelletizing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B1/16
CPCC22B1/16
Inventor 裴元东张俊杰陈军召周翔管振列赵和平殷国富张巧玉张天啸刘桐李乾坤
Owner ZENITH STEEL GROUP CORP
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