Device for purifying air by eliminating smoke and dust and the technique thereof

Abstract

A flue gas purifying collector and process method thereof are provided. The flue gas purifying collector comprises a transpiration cooling flue, a water seal, a flue, a ring-seal Venturi tube, a dehydrator, a flowmeter, pipelines, a main air blower, a three-way valve, a rotary water seal, an irradiation flue pipe, a water treatment device, a U-shape water seal, a gas cabinet, etc, characterized in that the transpiration cooling flue is connected with a cooling washing tower with a nozzle arranged inside the cooling washing tower, the flue gas outlet on the lower part of the collector is connected to the flue gas inlet on the lower part of the ring-seal Venturi tube, the flue gas outlet of the ring-seal Venturi tube is connected to the dehydrator, and on the throat opening of the ring-seal Venturi tube and below the heavy iron are arranged a water supply pipe and a nozzle, and a heavy iron inversed cone is arrange inside the throat opening. An up-running type flue gas flowing manner and water supply below the heavy iron are employed in the process provided in the invention, redundant mechanical water can be directly reclaimed without passing through the throat opening of the ring-seal Venturi tube, water is atomized thoroughly and agglomerates with dust on the throat opening of the ring-seal Venturi tube, thereby improving dust purifying and dust collecting effect, facilitating the adjustment of the heavy iron, and preventing dust agglomeration below the heavy iron and dust deposit on the throat opening of the ring-seal Venturi tube.

Description

Technical field: [0001] The invention relates to the technical field of converter auxiliary equipment, in particular to a wet-process converter flue gas purification and dust removal equipment and a process method thereof. Background technique: [0002] Most of the existing wet-process converter flue gas purification and dust removal equipment consists of two-stage venturi tubes, dehydrators, water mist separators, flow meters, induced draft fans, three-way valves, water treatment facilities, gas cabinets, water seals and other equipment. Most of the first-stage venturi tubes adopt manually adjustable throat type or overflow fixed throat type. The main function is to cool the flue gas and rough dust removal. In actual production, problems such as low efficiency of rough dust removal, large resistance, and large water content often occur. The main function of the secondary venturi tube is to remove fine dust and condense to cool down, and form a fine dust removal equipment wi...

AI Technical Summary

Problems solved by technology

In the work of the second-stage venturi tube, it is very important to ensure the full contact between the flue gas and the washing water, so that the washing water is fully atomized and condensed with the dust, which is very important to improve the effect of flue gas purification and dust removal. In the existing wet converter Most of the flue gas purification and dust removal equipment and processes adopt the downward process method, that is, the flue gas and washing water enter the throat from the top of the secondary venturi tube and flow out from the bottom of the throat. On the top, the weight is a positive cone with a small top and a large bottom and is placed at the throat section. The problem with this equipment and process method is that excess mechanical water is formed when the water mist crosses during the spraying process of multiple nozzles. Under the action of gravity, When the mechanical water passes through the annular seam, it will affect the full atomization of the washing water in the annular seam and condense with the dust, thereby affecting the effect of flue gas purification and dust removal

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