Nickel-iron alloy dry granulation and methane steam reforming waste heat recovery device and method

A waste heat recovery device, methane water vapor technology, applied in the field of environmental protection, energy saving, metallurgical engineering, can solve the problems of low recovery and utilization rate of waste heat resources, difficulty in satisfying molten nickel-iron alloy, etc., and achieve the goal of improving recovery efficiency and utilization rate and reducing production costs Effect

Active Publication Date: 2016-10-26
CHONGQING UNIV
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned deficiencies existing in the prior art, the object of the present invention is to provide a nickel-iron alloy dry granulation and methane steam reforming waste heat recovery device, which is used to realize granulation processing of liquid molten nickel-iron alloy, and also The waste heat of nickel-iron alloy can be multi-stage recovered and transformed into the resources required for the steam reforming reaction of methane, which can help improve the recovery and utilization rate of waste heat resources of nickel-iron alloy, and can be used to solve the granulation of molten nickel-iron alloy in the prior art Processing is difficult to meet the requirements of stainless steel smelting process, and the recovery and utilization rate of waste heat resources is low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Nickel-iron alloy dry granulation and methane steam reforming waste heat recovery device and method
  • Nickel-iron alloy dry granulation and methane steam reforming waste heat recovery device and method
  • Nickel-iron alloy dry granulation and methane steam reforming waste heat recovery device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047]The nickel-iron alloy dry granulation and methane steam reforming waste heat recovery device of the present invention is used to perform granulation and waste heat recovery operations on the molten nickel-iron alloy, and the dry granulator adopts the centrifugal granulation device with the optimized structure proposed by the present invention. Start the operation of the nickel-iron alloy dry granulation and methane steam reforming waste heat recovery device, and feed methane steam into the reforming reaction bed through the methane steam inlet port, and the nickel-iron alloy dry is driven by the exhaust fan on the air flow channel. The air circulation in the waste heat recovery device of French granulation and methane steam reforming; then the liquid nickel-iron alloy at about 1600°C is injected into the nickel-iron alloy liquid inlet on the top of the dry granulator, and then flows into the dry granulator for centrifugal granulation device, the centrifugal granulation de...

Embodiment 2

[0051] The nickel-iron alloy dry granulation and methane steam reforming waste heat recovery device of the present invention is used to perform granulation and waste heat recovery operations on the molten nickel-iron alloy, and the dry granulator adopts the centrifugal granulation device with the optimized structure proposed by the present invention. Start the operation of the nickel-iron alloy dry granulation and methane steam reforming waste heat recovery device, and feed methane steam into the reforming reaction bed through the methane steam inlet port, and the nickel-iron alloy dry is driven by the exhaust fan on the air flow channel. Airflow circulation in the waste heat recovery device for granulation and methane steam reforming; then the liquid nickel-iron alloy at about 1630°C is injected into the nickel-iron alloy liquid inlet at the top of the dry granulator, and then flows into the dry granulator for centrifugal granulation device, the centrifugal granulation device ...

Embodiment 3

[0055] The nickel-iron alloy dry granulation and methane steam reforming waste heat recovery device of the present invention is used to perform granulation and waste heat recovery operations on the molten nickel-iron alloy, and the dry granulator adopts the centrifugal granulation device with the optimized structure proposed by the present invention. Start the operation of the nickel-iron alloy dry granulation and methane steam reforming waste heat recovery device, and feed methane steam into the reforming reaction bed through the methane steam inlet port, and the nickel-iron alloy dry is driven by the exhaust fan on the air flow channel. The air circulation in the waste heat recovery device of granulation and methane steam reforming; then the liquid nickel-iron alloy at about 1650 ℃ is injected into the inlet of the nickel-iron alloy liquid on the top of the dry granulator, and then flows into the dry granulator for centrifugal granulation device, the centrifugal granulation d...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention provides a nickel-iron alloy dry granulation and methane steam reforming waste heat recovery device and method. According to the nickel-iron alloy dry granulation and methane steam reforming waste heat recovery device, the structure is simple; production, implementation, using and operation are all easy and convenient; the nickel-iron alloy dry granulation and methane steam reforming waste heat recovery method is combined; the nickel-iron alloy refining granulation effect is better ensured by adopting the dry granulation method; meanwhile, nickel-iron alloy waste heat can further be converted into resources required by methane steam reforming reaction in a multistage recovery mode that a physical method is combined with a chemical method; increasing of the nickel-iron alloy waste heat resource recovery utilization rate can be facilitated, so that the problems that the stainless steel smelting process requirements are difficult to meet by molten nickel-iron alloy granulation processing, and the waste heat resource recovery utilization rate of molten nickel-iron alloy granulation processing is low in the prior art are effectively solved; and the nickel-iron alloy dry granulation and methane steam reforming waste heat recovery device and method have very good industrial application value and can be applied and popularized in domestic metallurgical enterprises.

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 metallurgical slag, and in particular to a device and method for dry granulation of nickel-iron alloy and methane steam reforming waste heat recovery. Background technique [0002] In the production of stainless steel, ferronickel raw materials need to be added. The smaller the particles of ferronickel when entering the furnace, the shorter the smelting time of steelmaking. However, in order to ensure that the ferronickel particles can pass through the slag layer on the surface smoothly, the quality of the ferronickel should not be too small , so the particles of nickel-iron alloy should not be too small, usually the best particle size is 10~40mm. At present, in the ferronickel metallurgical process, whether it is the blast furnace method, the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/10C01B3/40F27D17/00
CPCB22F9/10C01B3/40F27D17/004Y02P10/143Y02P10/25Y02P20/10Y02P20/129
Inventor 吕学伟邱杰张颖异吕学明王伦伟贺文超党杰白晨光
Owner CHONGQING UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products