Natural cooler for steam exhaust system of continuous casting machine

Abstract

The invention discloses a natural cooler for a steam exhaust system of a continuous casting machine. The natural cooler comprises an air inlet box and an exhaust box. An air inlet is formed in a side plate of the air inlet box, an exhaust port is formed in the exhaust box, and a drainage opening is formed in a bottom plate of the air inlet box and / or the exhaust box. A hollow frame is connected between the bottom of the air inlet box and the bottom of the exhaust box. The front side and the rear side of the upper surface of the frame are vertically connected with a front plate and a rear plate. A plurality of heat exchange tubes which are communicated with the air inlet and the exhaust port are mounted on the upper portion of the frame, and the heat exchange tubes are placed between the front plate and the rear plate. According to the natural cooler for the steam exhaust system of the continuous casting machine, universality is strong, mounting is convenient, heat of steam which is exhausted by a fan of the continuous casting machine can be recovered, energy emission is reduced, and water consumption of the continuous casting procedure is greatly saved.

Description

technical field [0001] The invention relates to a cooler, in particular to a natural cooler used in the steam exhaust system of a continuous casting machine in a steel plant. Background technique [0002] In the continuous casting production process of iron and steel enterprises, the billet at about 1000 °C needs to be cooled by spraying water in the secondary cooling zone, which will generate a large amount of water vapor. In practical applications, fans with large air volume and high pressure head are often used to ensure the exhaust effect, resulting in large-diameter water droplets being directly discharged into the atmosphere along with the steam. Under normal circumstances, a continuous casting machine has to drain more than 10,000 to 30,000 tons of water every year, and the heat loss is greater than 2.3×10 5 GJ (the temperature of condensed water is measured at 100°C), resulting in a waste of water resources, and the heat energy it carries has not been effectively ut...

AI Technical Summary

Problems solved by technology

Under normal circumstances, a continuous casting machine has to drain more than 10,000 to 30,000 tons of water every year, and the heat loss is greater than 2.3×10 5 GJ (the temperature of condensed water is measured at 100°C), resulting in a waste of water resources, and the heat energy it carries has not been effectively utilized

In addition, in the cold northern region, the steam exhaust system of the second cold room of continuous casting cannot separate the water in time, which will cause the steam to condense when it is discharged to the roof, and the condensed steam will freeze on a large area when it falls on the roof, seriously affecting The safety of the factory building brings great potential safety hazards

Images