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Super-thick material layer pre-sintering device and using method thereof

A technology of pre-sintering and thick material layer, applied in the field of sintering, can solve the problem of inability to carry out the pre-sintering process and research of ultra-thick material layer, and achieve the effects of increasing the capacity of sintered ore, improving the quality uniformity, improving the strength and the yield of the finished product.

Active Publication Date: 2017-03-15
ANGANG STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The device is designed to overcome the tilting phenomenon of the furnace grate during the installation process, which makes it impossible to carry out research on pre-sintering process of ultra-thick material layer

Method used

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  • Super-thick material layer pre-sintering device and using method thereof
  • Super-thick material layer pre-sintering device and using method thereof
  • Super-thick material layer pre-sintering device and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] An ultra-thick material layer pre-sintering device, such as figure 1 shown. The inner diameter of the sintering cup is 330mm, the height is 1000mm, and the temperature measuring thermocouples are distributed along the height direction. Equipped with material level testing system, including anti-rotation material level gauge 4, connected to its rotating lifting device 8 marked with a scale, the initial position of the scale is kept level with the upper end of the grate in the sintering cup body, which can automatically detect the sintering mixture in the sintering cup body material surface height. The igniter includes 1# igniter 1, 2# igniter 2, 1#2# igniter rotary lifting connection device 3 can be rotated and lifted arbitrarily, which can realize the use of different igniters for the first and second ignition, improve production efficiency and can Extend igniter life.

[0030] A method of using an ultra-thick material layer pre-sintering device. First, the material ...

Embodiment 2

[0035] An ultra-thick material layer pre-sintering device, such as figure 1 shown. The inner diameter of the sintering cup is the sintering cup test device, the inner diameter of the sintering cup is 330mm, the height is 1200mm, and the temperature measuring thermocouples are distributed along the height direction. Equipped with material level testing system, including anti-rotation material level gauge 4, connected to its rotating lifting device 8 marked with a scale, the initial position of the scale is kept level with the upper end of the grate in the sintering cup body, which can automatically detect the sintering mixture in the sintering cup body material surface height. The igniter includes 1# igniter 1, 2# igniter 2, 1#2# igniter rotary lifting connection device 3 can be rotated and lifted arbitrarily, which can realize the use of no igniter for the first and second ignition, improve production efficiency and can Extend igniter life.

[0036] A method of using an ult...

Embodiment 3

[0041] An ultra-thick material layer pre-sintering device, such as figure 1 shown. The inner diameter of the sintering cup is the sintering cup test device, the inner diameter of the sintering cup is 330mm, the height is 1600mm, and the temperature measuring thermocouples are distributed along the height direction. Equipped with material level testing system, including anti-rotation material level gauge 4, connected to its rotating lifting device 8 marked with a scale, the initial position of the scale is kept level with the upper end of the grate in the sintering cup body, which can automatically detect the sintering mixture in the sintering cup body material surface height. The igniter includes 1# igniter 1, 2# igniter 2, 1#2# igniter rotary lifting connection device 3 can be rotated and lifted arbitrarily, which can realize the use of no igniter for the first and second ignition, improve production efficiency and can Extend igniter life.

[0042] A method of using an ult...

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Abstract

The invention provides a super-thick material layer pre-sintering device and a using method thereof. The super-thick material layer pre-sintering device comprises an igniter and a sintering cup body; the igniter is fixed to a rotary lifting connection device; a grate strip is arranged in the sintering cup body, and a material level testing system is arranged on one side of the sintering cup body and comprises a rotation blocking type material level meter and a rotary lifting device; the rotary lifting device is composed of a lifting rod and a cross beam; the rotation blocking type material level meter is hung in the cross beam and is suspended in the sintering cup body; the lifting rod is provided with a dividing ruler; and the initial position of the dividing ruler and the upper end of the grate strip are horizontal. The using method includes the steps that the material level testing system is started, the rotary lifting device is adjusted, the blade lower end of the rotation blocking type material level meter is made to reach the preset material distribution material layer height, material distribution is performed, after a preset height is achieved, material distribution stops, the rotation blocking type material level meter is moved out, and igniting and sintering are performed; and after ignition ends for 8 min or above, secondary material distribution is performed, and after a preset height is achieved, igniting and sintering are performed. By applying the super-thick material layer pre-sintering device and the using method thereof, the thick material layer sintering sintered ore quality uniformity is improved, the sintered ore strength is improved, and the rate of finished products is increased.

Description

technical field [0001] The invention belongs to the field of sintering, in particular to an ultra-thick material layer pre-sintering experimental device and a use method thereof. Background technique [0002] Thick bed sintering is a sintering technology developed in the 1970s. It can improve the strength of sinter, reduce the amount of powder, and improve the reduction performance. In addition, it has a significant effect on improving the yield of sinter and saving solid fuel consumption. Realizing the sintering of thick material layer or even ultra-thick material layer has become the long-term pursuit goal of the sintering industry. [0003] Thick material layer and ultra-thick material layer sintering make full use of the characteristics of automatic heat storage in the sintering process to achieve the above effects. When the surface of the sintering mixture layer is ignited and air is sucked in, the combustion zone during the sintering process will gradually go down alo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/22
CPCC22B1/22
Inventor 周明顺唐复平任子平徐礼兵翟立委刘杰张辉吴远飞童晓宇
Owner ANGANG STEEL CO LTD
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