Sintering machine blowing device capable of adjusting blowing starting point in self-adaptation manner and blowing method thereof

Abstract

The invention discloses a sintering machine blowing device capable of adjusting blowing starting point in a self-adaptation manner. The device comprises a sintering machine trolley, a blowing cover and a gas blowing device, the gas blowing device comprises a gas blowing main pipe, a gas blowing branch pipe and a gas blowing pipe bundle, the sintering machine trolley is located in the blowing cover, the gas blowing main pipe is arranged on the outer side of the blowing cover, the gas blowing pipe bundle is arranged above the sintering machine trolley, the gas blowing pipe bundle is located in the blowing cover, one end of the gas blowing branch pipe is connected with the gas blowing main pipe, the other end of the gas blowing branch pipe is connected with the gas blowing pipe bundle, the gas blowing pipe bundle comprises multiple gas blowing pipes which are provided with gas blowing holes. The device is characterized in that multiple air boxes are arranged below the sintering machine trolley, and an air box temperature measuring device is arranged at the position, on each air box, of the lower portion of the sintering machine trolley. According to the device, the blowing starting point can be adjusted in the self-adaptation manner, defects in the prior art can be effectively overcome, safety coefficients can be improved, and the assisting effect is ensured.

Description

technical field [0001] The invention relates to a sintering machine gas injection device and a gas injection method thereof, in particular to a sintering machine injection device and a gas injection method capable of adaptively adjusting the injection starting point, and belongs to the field of sintering. Background technique [0002] The sintering process is a key link in the ironmaking process. Its principle is to mix various powdery iron-containing raw materials with an appropriate amount of fuel and flux, add an appropriate amount of water, mix and pelletize the material on the sintering equipment to make the material A series of physical and chemical changes, sintered into blocks, which are sent to the blast furnace for the next step. [0003] In order to reduce the coke ratio and smelting cost of blast furnace ironmaking, blast furnaces often require high strength and high reducibility for sinter. In the sintering process, the sintered ore is generally required to hav...

AI Technical Summary

Problems solved by technology

[0006] The gas injection device in the prior art has the following defects in production because it cannot self-adaptively adjust the injection starting point:

Once such an abnormal working condition is encountered, the injection starting point originally designed by the gas injection device must be changed accordingly. Otherwise, when the gas is injected to the material surface, the combustion zone is still on the material surface, and the gas fire, causing a safety accident;

[0008] 2. It is easy to cause poor auxiliary effect or loss of auxiliary effect: under abnormal working conditions, when the gas injected to the material surface catches fire and burns, the gas injection auxiliary technology will lose its original ability to inject gas into the material layer to burn and strengthen sintering The significance of the effect, which will lead to the deterioration of the auxiliary effect, and in severe cases, the auxiliary effect will be lost

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