Sealing device between flue gas recirculation cover and trolley of sintering machine

Abstract

The invention discloses a sealing device between a flue gas recirculation cover and a trolley of a sintering machine. The sealing device comprises the trolley, and breast boards are arranged on the two sides of the trolley. The sealing device is characterized in that lower sealing supporting boards are arranged on the outer sides of the breast boards; folding edges are arranged on the outer sides of the lower sealing supporting boards and are perpendicular to the horizontal plane; the length direction of the folding edges is parallel to that of the breast boards; inner baffles are arranged on the sides, close to the breast boards, of the folding edges, and outer baffles are arranged on the sides, far away from the breast boards, of the folding edges; the tops of the inner baffles and the tops of the outer baffles are connected with a connecting plate; and the connecting plate is connected with the flue gas recirculation cover of the sintering machine through a connecting piece. The service life is long, the sealing structure can be replaced without shutdown, the air leakage rate of the part between the trolley and the flue gas recirculation cover can be lowered to be below 10%, and the energy saving and emission reducing effect of the sintering process is guaranteed; and along with sintering production, the sealing effect is gradually enhanced on the original basis, and long-term continuous and stable running of the sintering process can be guaranteed.

Description

technical field [0001] The invention relates to a flue gas circulation device of a sintering machine, in particular to a sealing device between a flue gas circulation cover of a sintering machine and a trolley. Background technique [0002] During the production process of the sintering machine, the high-temperature oxygen-containing flue gas in the large flue circulates to the flue gas circulation hood of the sintering machine to participate in the sintering process, so the sealing between the flue gas circulation hood and the trolley is particularly important. The seal between cars usually adopts rubber plate type seal. Due to the high temperature, friction and collision during operation of the trolley, the service life of the rubber plate is very short. Usually, the rubber plate will be aged and damaged after running for 3 months. The damaged background car and smoke The air leakage rate between the hoods is as high as 30%-40%, which affects the energy saving and emission...

AI Technical Summary

Problems solved by technology

[0002] During the production process of the sintering machine, the high-temperature oxygen-containing flue gas in the large flue circulates to the flue gas circulation hood of the sintering machine to participate in the sintering process, so the sealing between the flue gas circulation hood and the trolley is particularly important. The seal between cars usually adopts rubber plate type seal. Due to the high temperature, friction and collision during operation of the trolley, the service life of the rubber plate is very short. Usually, the rubber plate will be aged and damaged after running for 3 months. The damaged background car and smoke The air leakage rate between the hoods is as high as 30%-40%, which affects the energy saving and emission reduction effect of the sintering process. After the rubber plate is damaged, it needs to stop production before replacing it, which will destroy the continuity of sintering production and affect the production efficiency of the sintering machine

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