Blasting belt-type sintering machine and method, for producing sinter, of blasting belt-type sintering machine

Abstract

The invention provides a blasting belt-type sintering machine and a method, for producing sinter, of the blasting belt-type sintering machine. A material distribution mechanism I, an igniter, a material distribution mechanism II, an air draft and dust-removal flue and a discharging device are sequentially arranged on an upper-layer sintering cart way from a machine head to a machine tail, wherein the lower portion of the igniter is communicated with an air draft ignition pipeline through a wind box, the lower portion of the air draft and dust-removal flue is connected with a sealing cover, the sealing cover is arranged on the upper-layer sintering cart way, the sealing cover is communicated with a sintering blasting pipeline through the wind box at the lower portion of a cart, and a dust-falling pipe is arranged at the lower portion of the sintering blasting pipeline. According to the sintering machine, through two times of feeding, the thickness of a material layer can be improved to about 1-1.5m, fuel is combusted thoroughly through blasting sintering, the electricity-saving effect is obvious, and the electricity is saved by three fourths when air draft is changed into blasting. In the air draft process, the cart and grate bars make direct contact with sintering high-temperature smoke, the temperature is high, and the cart and the grate bars are deformed and damaged easily. After air draft is changed into blasting, the cart and the grate bars make contact with room-temperature blasting air, the temperature is low, and therefore the cart and the grate bars are not damaged easily.

Description

technical field [0001] The invention belongs to the technology of belt-type sintering equipment in the metallurgical industry, and in particular relates to a blast belt-type sintering machine and a method for producing sintering ore. technical background [0002] One of the main raw materials of the blast furnace ironmaking method is artificial lump ore—sintering ore. The sintering machine is a special equipment for artificially agglomerating iron ore powder in the raw material preparation stage of the ironmaking process. At present, the sintering machine adopts draft sintering and mechanical draft sintering The method is generally composed of a material distribution device, an igniter, a main engine, and a wind system. The output is small, the investment is high, the power consumption is low, the heat recovery rate is low, the labor efficiency is low, and the consumption of equipment spare parts is large. Blast sintering is mainly an "indigenous sintering" method before ...

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Problems solved by technology

[0004] Aiming at the problems of the belt-type sintering machine in the prior art, such as low mixture layer, low output, low efficiency, and easy damage of the sintering trolley, the present invention provides a blast belt-type sintering machine and a sintering process of sintering ore. The sintering machine has a high output , the production efficiency is significantly improved, and the consumption of equipment accessories is reduced

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