Cooling method of exhaust gas and device thereof

Abstract

The invention provides a cooling device of exhaust gas, which cannot reduce the cooling efficiency under high exterior temperature and can prevent the wasting of a cooling pipe in a basket at the upstream side caused by the influence of high-temperature oxidation when the temperature of the exhaust gas exceeds an anticipated value. In the invention, the cooling device of the exhaust gas consists of a basket (2), a cooling fan (F) and a plurality of cooling pipes (2a), wherein the basket (2) is divided into a cooling air chamber (A) and a gas chamber (G) opposite to the cooling air chamber (A) by a partition wall (2b). The cooling fan (F) supplies cooling air for the cooling air chamber (A). The cooling pipes (2a) penetrate through the cooling air chamber (A), communicate the cooling air chamber (A) with the gas chamber (G) at the opposite position and are provided with a liquid supply mechanism (10) used for cooling the cooling air.

Description

technical field [0001] The invention relates to an exhaust cooling method and its device, in particular to the improvement of the exhaust cooling method and its device based on indirect air cooling. Background technique [0002] Conventionally, as a cooling method for indirect air cooling using exhaust gas, the use of figure 2 The method of cooling the device is shown. [0003] The exhaust cooling device 20 used in this exhaust cooling method is composed of a casing 2, a cooling fan F, and a plurality of cooling pipes 2a. The casing 2 is divided into a cooling air chamber A by partition walls 2b, 2b and located The gas chambers G and G at opposite positions across the cooling air chamber A; the cooling fan F supplies cooling air to the cooling air chamber A; G is connected. [0004] A funnel-shaped dust box 2c is formed at the lower part of the gas chamber G to store the dust detached from the passing exhaust gas, and send it to the discharge conveyor 9 by opening and clo...

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Problems solved by technology

[0009] However, since the exhaust cooling device 20 sucks in the outside air through the cooling fan F and introduces it into the cooling air chamber A to cool the cooling tube 2a, there is a problem that the cooling tube 2a cannot be cooled when the temperature of the outside air is high. Efficiency decreases, and at the same time, when the exhaust gas temperature is higher than expected, the cooling pipe in the casing on the upstream side is prone to wear due to the influence of high-temperature oxidation

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