Vertical adverse current waste heat recycling device and method for sintering ore

Abstract

Provided are a vertical adverse current waste heat recycling device and method for sintering ore. The device comprises a top feed bin, a vertical adverse current recycling device body, a splay distributor, a cooling air redistribution device, a center air distributor, a crossed beam, a first annular air distribution pipe, a second annular air distribution pipe, a vibration feeder and a lower collection bin, all of which are connected with one another. The method comprises the steps that the high-temperature sintering ore enters the top feed bin after being smashed and then enters the vertical adverse current recycling device body via five discharging pipes; in the descending process, materials descend uniformly due to the splay distributor and the crossed beam; the materials are discharged out from seven discharging outlets in the lower portion of the vertical adverse current recycling device body; and after being discharged out of the seven discharging outlets, the materials are gathered in the lower collection bin, and the materials are discharged out at a certain speed after being mixed. The vertical adverse current waste heat recycling device and method for the sintering ore have the advantages that operation is stable and reliable, the air leakage rate is low, dust pollution is low, the rate of residual heat resource utilization is high, the device and the method can be used for recycling waste heat of steel slag blocks, red hot iron alloy ingot bars, ferronickel slag and the like, and the recycled high-temperature waste heat can be used for power generation, heating in winter and the like.

Description

Technical field: [0001] The invention relates to the technical field of metallurgical industry waste heat recovery process equipment, in particular to a sinter waste heat recovery device and method. Background technique: [0002] In the prior art, the total energy consumption of the domestic iron and steel industry accounts for about 10% of the total energy consumption of the national economy, and the sintering energy consumption accounts for about 12% of the total energy consumption of the iron and steel industry. In 2015, my country's sinter ore output was about 899 million tons, and the waste heat resources carried by 1 ton of sinter ore were about 0.94-1.02GJ, which contained huge waste heat resources. The sensible heat of sinter accounts for about 70% of the total waste heat resources in the sintering process. If the sensible heat of sinter is fully recovered generate electricity , The power generation capacity per ton of mine can reach 54.8~59.5kw·h. At present, most...

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Problems solved by technology

However, due to mechanical wear and inconvenient maintenance of the working environment, the air leakage rate will increase after one year of transformation, and the power generation per ton of mine will decrease

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