Lap-joint type sealing device between annular cooler trolley baffle and door-shaped sealing cover

Abstract

The invention relates to a lap-joint type sealing device between an annular cooler trolley baffle and a door-shaped sealing cover. The lap-joint type sealing device comprises an annular cooler rack, an inner support roller, an outer support roller, an inner return frame, an outer return frame, an inner trolley baffle, an outer trolley baffle, a door-shaped sealing cover, an inner sealing device and an outer sealing device among the inner trolley baffle, the outer trolley baffle and the door-shaped sealing cover. The lap-joint type sealing device is characterized in that the inner and outer sealing devices are lap-joint sealing devices; the lap-joint sealing devices consist of inner and inner and outer fixing bases which are respectively fixed on the inner and outer trolley baffles through bolt components, inner and outer adjusting spacers arranged among the inner and outer fixing bases and the inner and outer trolley baffles, inner and outer thermal resistant rubber sealing components arranged on the door-shaped sealing cover, and inner and outer lap-joint plate components. The lap-joint type sealing device has the advantages that the problem of great air leakage between an annular cooler trolley and the door-shaped sealing cover above is effectively solved, so that the fume circulation utilization rate is improved, and the temperature of the fume is increased.

Description

technical field [0001] The invention relates to the ring cooler technology in the field of metallurgical pellets and sintering, and in particular to a lap-joint sealing device between the trolley railing and the door-shaped sealing cover of the ring cooler. Background technique [0002] The annular cooler in the field of metallurgical sintering in my country is one of the important equipment in its production process. It is used to cool hot sintered ore. Usually, the cooling of the annular cooler is divided into several sections. The temperature of the exhaust gas generated in the front cooling section is relatively high. They are all recycled and reused. With the development of waste heat utilization technology of the flue gas of the ring cooler, how to ensure the normal cooling of the sinter and the normal operation of the ring cooler equipment, reduce dust emissions, and effectively collect high-temperature waste gas. The seal between the moving trolley fence and the fixed...

AI Technical Summary

Problems solved by technology

Problem: Because the rubber material is easily damaged and the temperature resistance is insufficient (the high-temperature exhaust gas temperature of the ring cooler is generally 300 0 C-400 0 C), often the initial sealing effect is acceptable, and the long-term operation leaks seriously, up to 30%-50%, a large amount of heat energy is lost to the air, reducing the efficiency of waste heat utilization, and the dust emitted along with it also pollutes the surrounding environment

The disadvantage is that the temperature of the exhaust gas here is higher than the boiling point of water, and there are potential safety hazards

In addition, a set of water supply, drainage and sewage treatment system was added to regularly remove the wet sludge deposited in the tank. Due to space constraints, operation and maintenance were very difficult

The sealing of granular sealing medium is generally sand sealing, and the depth of the sealing groove is limited by the structure. If the air volume and air pressure of the fan in the sinter cooling process are not adjusted properly, the pressure of the exhaust gas is too high, and the resistance generated by the accumulated sand is not enough. Resisting the pressure of the exhaust gas will blow away the sand, making the inside and outside of the cover communicate, but it will not be able to seal

Images