Trolley sealing device for flue gas circulation system of sintering machine

Abstract

The invention discloses a trolley sealing device for a flue gas circulation system of a sintering machine. The trolley sealing device comprises a cover body arranged on the top surface of a sintering machine trolley in a covering manner, wherein a communicating assembly is arranged at the top end of the cover body and communicates an inner cavity of the cover body and the outside; vertical adjusting sections are fixedly connected to the two ends of the inner cavity of the cover body separately; sealing devices are arranged between the vertical adjusting sections and the two ends of the top surface of the sintering machine trolley; the cover body comprises a plurality of skeletons; the plurality of skeletons are arranged above the sintering machine trolley; the communicating assembly is arranged on the skeletons; a skin is fixedly connected with the exteriors of the skeletons; and a heat preservation layer is arranged on the skin. The trolley sealing device is simple in structure, high in firmness, convenient to mount and dismount, small in space ratio, high in modularization degree, high in convenience of maintenance of the trolley part of the sintering machine, low in material consumption of the cover body, low in cost and high in popularization value.

Description

technical field [0001] The invention relates to the technical field of the metallurgical industry, in particular to a trolley sealing device used in the flue gas circulation system of a sintering machine. Background technique [0002] The sintering flue gas circulation technology is to extract the flue gas from the bellows of the main flue of the sintering machine, and send it to the surface of the sintering machine material layer for cyclic sintering after dust removal and circulation fans, so as to reduce the flue gas volume of the sintering machine and increase the sintering heat. The utilization rate of waste heat can reduce the fuel ratio and achieve the effect of energy saving and emission reduction. It is an important condition for the stable operation of the flue gas circulation to ensure that the circulating flue gas can be evenly distributed to the surface of the material layer without flue gas leakage. The flue gas circulation sealing device is an important struc...

AI Technical Summary

Problems solved by technology

However, the main defect of this design is that the overall height of the sealing cover with a semicircular sealing structure is too high, resulting in limited operating space for equipment such as the top crown crane, and at the same time, the overall bulkiness increases the manufacturing cost and the difficulty of disassembly; the arc-shaped design of the sealing cover makes The horizontal tension of the sealing cover is too large, which increases the difficulty of strengthening the structure, resulting in an increase in the overall weight

The seal cover and the support are designed separately, and the air inlet and the air supply port are connected independently with the seal cover, which increases the force strength of the seal cover, resulting in an enlarged structure of the seal cover and an increase in cost

Therefore, it is necessary to design a new type of sealing device to solve the problems of complex structure, excessive cost and serious space occupation in the existing sealing cover.

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