Furnace slag split-flow heat exchange device

Abstract

The invention relates to a furnace slag split-flow heat exchange device. The furnace slag split-flow heat exchange device comprises an airtight shell; a furnace slag collecting chamber is arranged inthe airtight shell; a heat exchange material bed used for bearing and conveying furnace slag is disposed in the furnace slag collecting chamber; an air distribution plate is disposed above the heat exchange material bed; the furnace slag collecting chamber comprises a heat exchange cavity located above the air distribution plate; a split-flow cavity is disposed on the inner side of the side wall of the airtight shell; a heat storage structure used for absorbing radiant heat of the furnace slag is disposed at the upper end of the air distribution plate; the heat storage structure is provided with channels which communicate with the heat exchange cavity and the split-flow cavity; and air holes which communicate with the furnace slag collecting chamber and the split-flow cavity are disposed in the lower end of the air distribution plate. The furnace slag split-flow heat exchange device can perform split flowing on air flow before the air flow enters the air distribution plate area, so that too high air speed of the air distribution plate area is avoided; and the heat storage structure at the upper end of the air distribution plate can be used for absorbing radiant heat during furnaceslag granulation, cooling air flow of the split-flow cavity carries the heat to enter the heat exchange cavity, and the waste heat recovery utilization efficiency is high.

Description

【Technical field】 [0001] The application relates to a slag split flow heat exchange device. 【Background technique】 [0002] At present, in the industrial field, smelting furnace equipment produces a large amount of slag during the production process. These slags are often accompanied by a large amount of waste heat. According to technical data, this part of waste heat resources accounts for more than 30% of its fuel consumption. It can be seen that the utilization of slag waste heat exists. Great potential. The utilization of waste heat from slag can not only reduce energy consumption per unit of product, but also reduce environmental pollution. Therefore, the utilization of waste heat from slag has considerable economic and social benefits. [0003] In the prior art, when the wind quenching method is used to recover the waste heat of the slag, there are the following disadvantages: 1. Due to the high wind speed in the area of ​​the air distribution plate, the particles wil...

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Problems solved by technology

[0005] In order to solve the problem in the prior art that when the wind quenching method is used to recover the waste heat of slag, the wind speed in the area of ​​the air distribution plate is too high, and the particles will be carried into the hot air flue. This application provides a slag split heat exchange device, which can The airflow before entering the air distribution plate area is diverted to avoid excessive wind speed in the air distribution plate area

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