Self-adaptive side sealing device for fuel gas blowing and control method thereof

Abstract

The invention relates to a self-adaptive side sealing device for fuel gas blowing. The device comprises a sintering machine trolley, a seal cover, a fuel gas blowing device and a side sealing device.The sintering machine trolley is located in the seal cover, the fuel gas blowing device is located above the sintering machine trolley, and the side sealing device is of a double-end type structure. The side sealing device comprises a fixing device, a curved bearing plate, an upper sealing plate and a lower sealing plate. The fixing device is arranged on the inner side of the seal cover, and the curved bearing plate is connected to the fixing device. The upper sealing plate is connected to the upper end of the curved bearing plate and is close to the inner side of the seal cover. The lower sealing plate is connected to the lower end of the curved beraing plate and is close to the outer side face of the sintering machine trolley. The double end sealing device capable of achieving real-timeself-adaptive adjustment achieves the purposes of stable production, smooth production and safe production of a whole fuel gas blowing assisted sintering production line.

Description

technical field [0001] The invention relates to a side sealing device and a control method thereof, in particular to an self-adaptive adjustable side sealing device for gas injection and a control method thereof, belonging to the technical 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 have high strength, high yield, low return rate, a...

AI Technical Summary

Problems solved by technology

[0006] 1. Trolley deviation: When this abnormal working condition occurs, the sintering machine trolley will not be on the original track, but will deviate from the track to the left or right. At this time, if the gas injection side sealing device cannot quickly self-adapt Adjustment (the overall adjustment to the direction of the deviation of the trolley), will be stuck by the deviated trolley and run together with the trolley in the direction of the sintering machine, which will cause the gap between the gas pipeline and the gas injection hood, causing serious production accidents ;

[0007] 2. Outward tilting deformation of the trolley railing: When this abnormal working condition occurs, the overall railing of the sintering machine trolley is tilted outward, causing the width of the trolley to be larger than the original design width. At this time, if the gas injection side sealing device cannot quickly and automatically Adapt to the adjustment (the width of the device becomes larger), and the side seal device will be stuck by the trolley, which will cause serious production accidents;

[0008] 3. Inward tilting deformation of the trolley railing: When this abnormal working condition occurs, the overall railing of the sintering machine trolley inclines inward, causing the width of the trolley to be smaller than the original design width. At this time, if the gas injection side sealing device cannot quickly adapt Adjustment (the width of the device becomes smaller), it will cause the gap between the side sealing device and the trolley to be too large, and the sealing effect will be lost;

[0009] 4. Bridge or subsidence of the trolley: When the abnormal working condition of the bridge of the trolley occurs, the operating height of the sintering machine trolley will be significantly higher than the original design height. At this time, if the gas injection side sealing device cannot be adaptively raised , the sealing effect will be greatly negatively affected

In the same way, when the abnormal working condition of the trolley collapses, if the gas injection side sealing device cannot be adaptively lowered accordingly, the sealing effect will also be negatively affected

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