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Super-thick material layer sintering material, sintering method and sintering ore

A sintering method and technology of sintering ore, applied in the field of sintering, can solve problems such as flameout, limiting the thickness of material layer, affecting the output and quality of sintering ore

Active Publication Date: 2020-10-27
SHOUGANG CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention provides an ultra-thick material layer sintering material, a sintering method and a sintered ore, in order to solve the problem that in the prior art, fine-grain fine powder is used as a raw material, and the sintering speed is low when the ultra-thick material layer is sintered, or even flameout affects the sintered ore. The output and quality limit the technical problem of further increasing the thickness of the material layer

Method used

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Embodiment 1 to Embodiment 7

[0056] Embodiments 1 to 7 of the present invention provide an ultra-thick material layer sintering material and a sintering method thereof, which are carried out on a 360 flat-belt sintering machine, figure 2 It is a step diagram of a sintering method for an ultra-thick material layer sintered material according to an embodiment of the present invention, combined with figure 2 , during production, firstly carry out the distribution of bottom material, which is composed of sintered ore with a particle size of 10-20mm; 4. Use sintered ore with a particle size of 5-15mm; then spread the sandwich layer 6, spread the sintered ore with a particle size of 5-15mm on the lower mixture layer, and finally carry out the upper mixture layer 7 cloth, the upper mixture layer 7 is the secondary mixture. The schematic diagram of the longitudinal section of the sintered material after cloth is as follows: figure 1 As shown, the thickness of each layer is shown in Table 1 and Table 2. The s...

Embodiment 8

[0058] Embodiment 8 takes Embodiment 7 as a reference, and is different from Embodiment 7 in that no sandwich layer cloth is carried out, and the rest is the same as Embodiment 7.

Embodiment 9

[0060] Embodiment 9 takes Embodiment 3 as a reference, and differs from Embodiment 3 in that the thickness of the sandwich layer 6 is 40 mm, and the rest is the same as Embodiment 3.

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Abstract

The invention discloses a super-thick material layer sintering material, a sintering method thereof and sintering ore. The sintering material sequentially comprises a grate-layer material layer, a lower mixed material layer and an upper mixed material layer from bottom to top. The lower mixed material layer comprises N partition material bars and to-be-sintered mixed materials, the N partition material bars are vertically arranged at intervals to partition the to-be-sintered mixed materials, the N partition material bars are composed of the first sintering ore, the thicknesses of the N partition material bars are 500-800 mm, the widths of the N partition material bars are 40-60 mm, the distance between any two adjacent partition material bars is 300-1,000 mm, and N is a positive integer. By means of the method, the high sintering speed capable of reaching 26.1 mm / min under a thick material layer more than 1,000 mm thick is achieved, meanwhile, the yield is high and can reach 85%, the fuel consumption is low, and the drum index of the obtained sintering ore is 82%-87%.

Description

technical field [0001] The invention relates to the technical field of sintering, in particular to an ultra-thick material layer sintering material, a sintering method and a sintered ore. Background technique [0002] Sintering is a variety of powdery iron-containing raw materials, mixed with an appropriate amount of fuel and flux, added an appropriate amount of water, mixed and granulated, and then distributed, ignited and sintered on the sintering equipment to cause a series of physical and chemical changes in the material. The process in which ore powder particles are bonded into agglomerates to form sintered ore. In iron ore sintering production, thick material layer cloth is generally used for sintering in the cloth stage to improve the quality of sinter and reduce fuel consumption. For example, Ma'anshan Iron and Steel Group Corporation's Santie General Plant has achieved a sintering layer thickness of 900mm, and individual small sintering machines below 300 square me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/16
CPCC22B1/16
Inventor 马怀营陈斌龚坚吴建海赵志星张勇欧书海刘磊高新洲张志东潘文赵满祥张亚鹏辛越郑敬先
Owner SHOUGANG CORPORATION
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