Sintering method and sintering device of metal compound powder

A technology of metal compound and sintering method, which is applied in the field of sintering of metal compound powder and sintering device, can solve problems such as uneconomical restrictions, achieve the effects of reducing the amount of coke used for sintering, improving particle size, and increasing penetration speed

Inactive Publication Date: 2014-07-16
SICHUAN DAZHOU IRON & STEEL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are four ways to increase heat exchange with the material layer: one is to increase the amount of air inhaled by the material layer, but this is caused by design and cost; the other is to improve the original air permeability of the mixture, but it is uneconomical due to the constraints of raw materials

Method used

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  • Sintering method and sintering device of metal compound powder
  • Sintering method and sintering device of metal compound powder
  • Sintering method and sintering device of metal compound powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1 - the sintering method of the sintered material with the existing vanadium-titanium ore weight content less than 20%

[0024] Adopt the common sintering method of the existing sintering material, do not spray saturated water vapor to the sintering material layer during the sintering process, and measure the physical and chemical indicators of the sintering material after the sintering material is sintered. The data obtained are shown in the table below.

[0025] Table 1: Existing sintering process

[0026]

[0027] In the above table, the amount of coke is used to represent the amount of fuel that needs to be added per ton of sintered ore during the sintering process. The data unit in the table is Kg;

[0028] The air infiltration speed of the material layer is represented by the suction negative pressure of the sintering exhaust fan. The data unit in the table is Kpa;

[0029] Utilization coefficient is an important index to measure the production c...

Embodiment 2

[0034] Embodiment 2 - the sintering of the sintered material with a vanadium-titanium ore weight content of less than 20% in this application

[0035] Using the same sintering device, the sintering device includes a sintering trolley, the lower part of the sintering trolley is provided with a draft device; the upper part of the sintering trolley is provided with a saturated water vapor pipeline, and the saturated water vapor pipeline is connected to the sintering table The horizontal plane of the traveling direction of the car is inclined; the saturated steam pipeline is connected with a nozzle on the pipe surface opposite to the sintering trolley; the saturated steam pipeline is vertically arranged with the horizontal plane of the sintering trolley; the saturated steam pipeline It is connected with the steam dehydration dryer so that the water vapor can be dried through the steam dehydration dryer before entering the saturated water vapor pipeline.

[0036] At the same time, ...

Embodiment 3

[0046] Embodiment three——the sintering of the sintering material whose weight content of vanadium-titanium ore accounts for 20%-40%

[0047] Using the same sintering device, the sintering device includes a sintering trolley, the lower part of the sintering trolley is provided with a draft device; the upper part of the sintering trolley is provided with a saturated water vapor pipeline, and the saturated water vapor pipeline is connected to the sintering table The horizontal plane of the traveling direction of the car is inclined; the saturated steam pipeline is connected with a nozzle on the pipe surface opposite to the sintering trolley; the saturated steam pipeline is vertically arranged with the horizontal plane of the sintering trolley; the saturated steam pipeline It is connected with the steam dehydration dryer so that the water vapor can be dried through the steam dehydration dryer before entering the saturated water vapor pipeline.

[0048] Simultaneously, a sintering me...

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Abstract

The invention discloses a sintering method and a sintering device of metal compound powder, and particularly relates to a sintering method and a sintering device of metal compound powder. The method comprises the following steps: igniting a sintering feed containing the metal compound powder and simultaneously sucking air from the bottom of a material bed by an exhaust fan, and then jetting statured vapor from the periphery of the material bed within a certain period of time in the sintering feed combustion process, so that the statured vapor enters the sintering feed in combustion from the top of the material bed by the action of an exhaust fan. By adopting the method, the product quality of agglomerate can be effectively improved, for example, ore removal rate, agglomerate size component and the like can be effectively improved, and meanwhile, the coke amount also can be reduced in the sintering process.

Description

technical field [0001] The invention relates to a sintering method and a sintering device for metal compound powder, in particular to a sintering method and a sintering device for iron-containing compound powder. Background technique [0002] The sintering process in the steelmaking process is to mix, wet, and pelletize iron-containing powder, industrial waste, flux and solid fuel in a certain proportion according to the requirements of the blast furnace to form a mixture and raw sintering material; spread the mixture on the sintering machine On the car, the igniter is ignited and the exhaust fan sucks air from the material layer, forming a negative pressure in the material layer, so that the air around the surface of the material layer penetrates into the material layer. [0003] The infiltrated air is heated by the high-temperature sinter produced on the top of the material layer, and this heat exchange process also cools the sinter generated on the top material layer, and...

Claims

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Application Information

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IPC IPC(8): C22B1/16C22B1/22
Inventor 李元廷邓孝天王皎月肖鹏韦德建何坤林伍艳梅陈波
Owner SICHUAN DAZHOU IRON & STEEL GROUP
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