Liquid alloy dry granulation and methane steam reforming waste heat recovery device and method

Abstract

The invention provides a liquid alloy dry granulation and methane steam reforming waste heat recovery device and method. The liquid alloy dry granulation and methane steam reforming waste heat recovery device is simple in structure and easy and convenient to produce, implement, use and operate and is combined with the liquid alloy dry granulation and methane steam reforming waste heat recovery method. A dry granulation method is adopted to better ensure the refining and graining effect of a liquid alloy, and meanwhile waste heat of the liquid alloy can be converted into resources needed by the methane steam reforming reaction through multistage recycling of a physical method combined a chemical method; the recycling utilization rate of waste heat resources of the liquid alloy can be improved, and therefore the problems that in the prior art, granulation machining of the liquid alloy difficultly meets the follow-up alloy melting technology requirement, and the waste heat resource recycling rate of the liquid alloy is low are effectively solved; and the good industrial application value is achieved, and the device and method can be applied and popularized in the domestic metallurgy enterprise.

Description

technical field [0001] The invention relates to the fields of metallurgical engineering, environmental protection and energy saving, mainly relates to energy saving and emission reduction in metallurgical processes, dry granulation of liquid alloys, and in particular to a device and method for dry granulation of liquid alloys and methane steam reforming waste heat recovery. Background technique [0002] In the 1980s, the emergence of steelmaking technologies such as AOD, VOD and RH led metallurgists to propose the supply of alloy particles with a certain particle size (generally 10-40 mm) to the alloy factory, and the alloy producers hope to achieve Common goals are: increase production efficiency and avoid time-consuming casting and crushing operations; minimize chipping and loss of high-cost alloy products; create a single and clean alloy product to meet clean steel requirements ; Obtain an alloy product that is easy to handle, transport, and integrate into the metallurgic...

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Problems solved by technology

[0009] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a liquid alloy dry granulation and methane steam reforming waste heat recovery device, which is used to realize liquid alloy granulation processing, and can also process the state The waste heat of the liquid alloy is multi-stage recovered and transformed into the required resources for the steam reforming reaction of methane, which can help improve the recovery and utilization rate of the waste heat resources of the liquid alloy, and is used to solve the problem that the granulation processing of the liquid alloy in the prior art is difficult to meet the follow-up requirements. Alloy smelting process requirements and low recovery and utilization rate of waste heat resources

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