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A belt-type suction sintering process with inclined downward sintering airflow

A kind of air flow and process technology, applied in the direction of furnace, furnace type, lighting and heating equipment, etc., to achieve the effect of improving quality, reducing material layer resistance, and reducing particle concentration

Active Publication Date: 2022-08-05
江苏集萃冶金技术研究院有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, for the vertical cooling furnace cooling process to improve the efficient recovery of hot sinter waste heat, the current belt draft sintering process must use other lifting equipment to transport the hot sinter from the tail of the sintering machine into the vertical cooling furnace

Method used

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  • A belt-type suction sintering process with inclined downward sintering airflow
  • A belt-type suction sintering process with inclined downward sintering airflow
  • A belt-type suction sintering process with inclined downward sintering airflow

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] see figure 1 , including a sintering machine trolley 1, a sintering machine bellows 2 is arranged below the trolley 1, and the trolley 1 has a sintering material layer 3 and a bottoming material 4, and the sintering material layer 3 and the bottoming material 4 are placed with the trolley 1. Driven by the head transmission mechanism 8, the head star wheel 8.1 pushes the sintering head to run along the upper inclined track 9.1 of the sintering machine trolley track 9 to the tail of the machine, discharges the material at the fixed track 9.2 at the tail, and enters the lower layer Inclined track 9.3. The trolley 1 entering the lower inclined track 9.3 is pushed by the trolley 1 behind it, travels along the lower inclined track 9.3 to the sintering head, and is pushed into the upper inclined track 9.1 by the head star wheel 8.1. The trolley 1 entering the upper inclined track 9.1 travels below the distribution system 7, and the sintered mixture passes through the lowering...

Embodiment 2

[0039] see figure 2 , including a sintering machine trolley 1, a sintering machine bellows 2 is arranged below the trolley 1, and the trolley 1 has a sintering material layer 3 and a bottoming material 4, and the sintering material layer 3 and the bottoming material 4 are placed with the trolley 1. Driven by the head drive mechanism 8, driven by the head star wheel 8.1, the sintering head runs along the upper inclined track 9.1 of the sintering machine trolley track 9 to the tail of the machine, unloads the material at the fixed track 9.2 at the tail, and enters the middle layer Orbit 9.4. The trolley 1 entering the middle track 9.4 moves forward on the chain belt 13 connecting the middle track 9.4 and the lower track 9.5 under the push of the trolley 1 behind it, and is pulled to the lower track 9.5 by the chain belt 13, along the lower track 9.5. Track 9.5 travels to the sintering head. The trolley 1 traveling to the sintering head along the lower track 9.5 is pushed by t...

Embodiment 3

[0041] see figure 2 , including a sintering machine trolley 1, a sintering machine bellows 2 is arranged below the trolley 1, and the trolley 1 has a sintering material layer 3 and a bottoming material 4, and the sintering material layer 3 and the bottoming material 4 are placed with the trolley 1. Driven by the head drive mechanism 8, driven by the head star wheel 8.1, the sintering head runs along the upper inclined track 9.1 of the sintering machine trolley track 9 to the tail of the machine, unloads the material at the fixed track 9.2 at the tail, and enters the middle layer Orbit 9.4. If the trolley 1 entering the middle track 9.4 needs to be repaired, it will be pulled to the trolley maintenance platform 14 by the push of the trolley 1 behind it and on the chain belt 13 for maintenance. The well-maintained trolley enters the lower track 9.5 through the track of the trolley inspection platform 14, and then travels to the sintering head. The trolley 1 traveling to the s...

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Abstract

The invention discloses a belt-type drafting sintering process in which the sintering air flow is inclined downward, which solves the problems of large material layer resistance, high dust concentration in sintering flue gas, and hot ore transporting dust when the hot sintering ore shaft kiln is cooled in the existing sintering process. . The technical scheme includes that the sintering mixture is spread evenly on the sintering machine trolley through the distribution device at the head of the sintering machine, and then ignited, and the sintering air is drawn from top to bottom for sintering. The bellows, the trolley and the sintering mixture run obliquely upward from the head to the tail of the machine. The sintering airflow and the sintering flame front are perpendicular to the traveling direction of the trolley and pass through the sintering material layer obliquely downward. The invention has the advantages of simple technological process, low emission of pollutants in the sintering process, small occupation area, and low comprehensive operation cost of sintering.

Description

technical field [0001] The invention relates to a sintering process in the metallurgical field, in particular to a belt-type suction sintering process in which the sintering airflow is inclined downward. Background technique [0002] Sintering refers to the transformation of powdery materials into dense bodies, which is a process in which powders or powder compacts are heated to a temperature lower than the melting point of the basic components, and then cooled to room temperature in a certain method and speed. The result of sintering is that the powder particles are bonded, the strength of the sintered body is increased, and the agglomeration of powder particles is turned into an agglomeration of crystal grains, thereby obtaining products or materials with desired physical and mechanical properties. [0003] The sintering process is one of the most important process units in modern steel production. The energy consumption generated in the sintering process is the most impor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B21/00F27D17/00
CPCF27B21/00F27D17/008
Inventor 吴高明许丽娟童为硕柯尊华汪芮李牧明
Owner 江苏集萃冶金技术研究院有限公司
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