Device and method for collecting waste gas during water quenching of liquid slag

Abstract

The invention relates to a device and a method for collecting waste gas during water quenching of liquid slag, and the method and device provided by the invention are used for overcoming the technical difficulty in collection of waste gas during water quenching of the liquid slag. The waste gas is collected by a mobile gas collection cover; the waste gas passes through a mobile gas exhaust pipe and a fixed gas exhaust pipe, is cooled and condensed by atomized water sprayed out of a spiral atomization nozzle, and then is conveyed into a washing fan; the condensed waste gas enters a water and gas separation barrel at a flow speed of 30 meters per second after being cooled; under the action of a centrifugal force, condensed water and dust move downwards along the wall of the barrel so as to be separated and purified; purified clean air is emptied by virtue of an air exhaust barrel; the condensed water and the dust are discharged by virtue of a discharge pipe arranged at the bottom of the barrel body; and the separated sewage is conveyed into a clarification tank for clarification and reused, therefore, the blank of collection of the waste gas during water quenching of the liquid slag in China is filled, and the device has the advantages of conservation of water resources, good environmentally-friendly effect, simplicity and convenience in operation and improvement on working environment.

Description

technical field [0001] The invention relates to a device and method for collecting and treating waste gas in the liquid slag water quenching process for collecting and treating waste gas in the liquid slag water quenching process. Background technique [0002] For production enterprises, a large amount of liquid slag will be produced during the production process. The liquid slag itself has the characteristics of high temperature. It is necessary to put the high-temperature liquid slag into the cold water pool for cooling, and then use the grab bucket to transfer the waste slag out of the pool. When this process is working, a large amount of smoke containing water vapor and a small amount of dust will be generated instantly, forming white water mist and spreading in the surrounding space. [0003] At present, there is no domestic enterprise that treats the waste gas of the liquid slag water quenching process, and the water quenching slag process waste gas causes great harm...

AI Technical Summary

Problems solved by technology

Due to high humidity and high temperature, the equipment is seriously corroded, which seriously affects the performance and service life of the equipment

[0005] (2) The visibility of the surrounding workshops is low and personnel operations are difficult

In the process of slag discharge, a large amount of smoke is generated instantaneously and uninterruptedly, and the line of sight within 10m is affected. In winter, the range of smoke will be wider, causing visual obstacles when operating and inspecting equipment, and bringing great inconvenience to safe production.

[0006] (3) Environmental pollution and serious waste of water resources

Due to the high temperature of the liquid slag, about 1000°C, after it is put into the slag washing tank, a large amount of steam will be generated, and some dust will be carried out, which will not only cause environmental pollution, but also the water in the slag washing tank will be lost along with the water vapor.

Therefore, it is necessary to continuously add new water to the slag washing tank, and 0.4-0.8m 3 amount of water, resulting in a large waste of water resources

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