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Method for treating smoke generated by sintering ore materials

A processing method and technology for sintering materials, which are applied in the field of mineral sintering technology, can solve the problem of insufficient utilization of flue gas, etc., and achieve the effects of reducing the amount of exhaust gas, improving working conditions and reducing operating costs.

Active Publication Date: 2011-01-19
ZHONGYE-CHANGTIAN INT ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, it is more commonly used to return part of the flue gas discharged from the sintering machine to the sintering machine as the air intake source of the sintering machine, but the above-mentioned prior art does not make full use of the flue gas discharged from other parts of the sintering device

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  • Method for treating smoke generated by sintering ore materials
  • Method for treating smoke generated by sintering ore materials
  • Method for treating smoke generated by sintering ore materials

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Embodiment Construction

[0014] In order to further understand the present invention, the preferred embodiments of the present invention are described below in conjunction with the examples, but it should be understood that these descriptions are only to further illustrate the features and advantages of the present invention, rather than limiting the claims of the present invention.

[0015] See figure 1 , is a schematic diagram of the first embodiment of the sintering device for sintering ore materials provided by the present invention, which shows the recycling mode of the sintering flue gas provided by the present invention. The sintering device is mainly composed of a sintering machine, a ring cooler and a flue. The sintering machine 101 is used for sintering the ore material, which is preferably iron ore, the ring cooler is used for cooling the sintered iron ore material, and the flue is used for discharging the flue gas generated by sintering.

[0016] The sintering machine is divided into sint...

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Abstract

The invention provides a method for treating smoke generated by sintering ore materials. The method comprises the following steps of: sintering the ore materials by using a sintering machine to obtain blocky sintered materials; cooling the sintered materials by using a circular cooler to obtain sintered ore; and exhausting the smoke generated by the sintering machine 7 through a flue, wherein thesintering machine is divided into a sintering machine ignition section, a sintering machine low-sulfur section, a sintering machine high-sulfur section and a sintering machine high-temperature section sequentially; the flue comprises a low-sulfur flue, a high-sulfur flue and a high-temperature flue; a machine tail cover is arranged on the tail part of the sintering machine; the circular cooler isdivided into a circular cooler material-distributing section, a circular cooler cooling section and a circular cooler material-discharging section sequentially; and dust-removing wind exhausted from a circular cooler material-distributing hopper is circulated to the circular cooler to serve as a cooling gas source of the circular cooler. Compared with the prior art, the method has the advantages of recycling the smoke of the machine tail part and the smoke generated by circular cooler material-distributing points, the low-sulfur flue and the circular cooler material-distributing hopper, reducing the smoke emission and fully utilizing the afterheat of the smoke.

Description

technical field [0001] The invention relates to a mineral sintering process in the field of iron and steel metallurgy, in particular to a treatment method for flue gas produced by sintering ore materials. Background technique [0002] In the field of iron and steel metallurgy, in order to ensure the air permeability of the ore material in the blast furnace and remove some harmful impurities in the ore material, such as sulfur, fluorine, arsenic and zinc, it is necessary to sinter the iron ore in an oxidizing atmosphere. Sintered ore with suitable porosity, good reducibility, suitable strength and stable composition can be prepared. In the prior art, a variety of sinter preparation methods and sintering equipment have been disclosed, and the commonly used sintering equipment generally includes two parts: a sintering machine and an annular cooler. In the sintering machine, coke is used as fuel and oxidizing gas such as air is used as combustion gas to oxidize iron ore to obta...

Claims

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Application Information

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IPC IPC(8): F27D17/00
CPCY02P10/25
Inventor 黎前程陈乙元谭克强夏耀臻李继淦
Owner ZHONGYE-CHANGTIAN INT ENG CO LTD
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