Flue gas purification and heat energy utilization system of AOD (Argon Oxygen Decarburization) refining furnace

A flue gas purification and refining furnace technology, which is applied in furnaces, waste heat treatment, furnace components, etc., can solve problems such as high system investment and operating costs, low economic value, and complicated design process, so as to improve efficiency and stabilize equipment operation performance, realize comprehensive utilization, and improve utilization efficiency
CN104406416AInactive Publication Date: 2015-03-11无锡东雄重型电炉有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
无锡东雄重型电炉有限公司
Publication Date
2015-03-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a flue gas purification and heat energy utilization system of an AOD (Argon Oxygen Decarburization) refining furnace. The system comprises a refining furnace and a hearth flow guide hood which covers the outer side of the refining furnace, wherein the upper end of the hearth flow guide hood is communicated with a roof circulation hood; the roof circulation hood is communicated with a pulse bag type dust collector through a flue gas pipeline; a flue gas exhaust hole in the refining furnace is used for circulating the flue gas through a primary settlement chamber, a preheating recovery device, a secondary settlement chamber and the pulse bat type dust collector in sequence via the flue gas pipeline; an air outlet of the pulse bag type dust collector is communicated with an exhaust cylinder through an exhaust air pipeline. According to the system, the flue gas of the AOD refining furnace can be completely captured and purified, and the heat energy of the flue gas is efficiently utilized and converted to reduce the influence of the flue gas of the AOD refining furnace on the atmospheric environment, and the heat energy of the flue gas is fully utilized while relevant national environmental protection policies are met; the system has the characteristics of safety, effectiveness, economy and energy saving.
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Description

[0001] technical field

[0002] The invention relates to an industrial flue gas purification and heat energy utilization equipment, in particular to an AOD refining furnace flue gas purification and heat energy utilization system. Background technique

[0003] With the improvement of AOD refining technology, a large number of large-scale AOD refining furnaces have been newly built in recent years. The oxygen supply mechanism has also developed from side blowing at the bottom of the furnace to combined blowing at the top and bottom, and the oxygen consumption has increased significantly. At this time, the amount of smoke and dust in the AOD refining furnace Combined with relevant calculations and statistics, the flue gas volume in the AOD refining furnace reaches 400-600Nm3 / h.t, the temperature is as high as 1600°C, and contains a large amount of CO and oxides. If effective measures are not taken, it will inevitably cause certain damage to the surrounding atmospheric environme...

Claims

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