Horizontal fluidized bed waste heat recovery device for blast furnace granulated slag

A waste heat recovery device and granulated slag technology, applied in fluidized bed heat exchangers, indirect heat exchangers, heat exchanger types, etc., can solve the problem of low glass body content of cooling slag, low waste heat recovery efficiency, and inability to operate continuously To achieve the effect of ensuring the fluidization effect, avoiding waste, and improving the efficiency of waste heat recovery

Pending Publication Date: 2021-08-17
QINGDAO TECHNOLOGICAL UNIVERSITY +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the shortcomings of the existing blast furnace granulated slag waste heat recovery devices, such as low waste heat recovery efficiency, poor waste heat quality, low content of cooling slag vitreous body, easy blockage and bonding during operation, and inability to operate continuously, the present invention provides a blast furnace granulated slag waste heat recovery device. Slag horizontal fluidized bed waste heat recovery device

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
  • Horizontal fluidized bed waste heat recovery device for blast furnace granulated slag
  • Horizontal fluidized bed waste heat recovery device for blast furnace granulated slag
  • Horizontal fluidized bed waste heat recovery device for blast furnace granulated slag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, these embodiments are provided to make the understanding of the present disclosure more thorough and comprehensive.

[0023] The blast furnace granulated slag horizontal fluidized bed waste heat recovery device provided in this embodiment has the following structure: figure 1 As shown, it mainly includes a fluidized heat exchange bed made of a bracket 6 and a heat-resistant and wear-resistant material 7, an air distribution device composed of a hood-type air distribution plate 14 and a hood 15, and an air chamber 12, a fan and a pre-dis...

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

No PUM Login to view more

Abstract

The invention belongs to the technical field of waste heat recovery and utilization, and particularly relates to a waste heat recovery device for blast furnace granulated slag. A horizontal fluidized bed waste heat recovery device for blast furnace granulated slag comprises a fluidized heat exchange bed, an air distribution device and an air supply device, wherein the fluidized heat exchange bed is provided with a feed opening and a slag outlet; and the air supply device is arranged below the fluidized heat exchange bed, and cooling air is supplied into the fluidized heat exchange bed through the air distribution device. According to the device disclosed by the invention, the waste heat recovery rate of the blast furnace slag is effectively improved, the quality of the recovered waste heat is improved under the condition of ensuring the glass body content of the cooled slag, continuous and stable heat exchange operation of the blast furnace slag is realized, and the problem that slag particles are easy to block is solved.

Description

technical field [0001] The invention belongs to the technical field of waste heat recovery and utilization, and in particular relates to a waste heat recovery device for blast furnace granulated slag. Background technique [0002] Blast furnace slag and steelmaking steel slag are the main by-products of the iron and steel industry. According to my country's current steelmaking process, the production of 1 ton of pig iron requires about 0.3-0.6 tons of blast furnace slag and 0.13 tons of steel slag. The temperature of blast furnace slag and steel slag in the molten state is as high as 1350℃~1450℃. After converting into heat, there is about (1.26~1.88)×10KJ sensible heat per ton of slag, which is equivalent to the heat generated by the combustion of 45~60kg standard coal. In 2019, my country's crude steel output was 969 million tons. If calculated on the basis of 0.3 tons of slag produced per ton of crude steel, my country produced a total of 290 million tons of high-temperatu...

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): F28D13/00C21B3/08
CPCC21B3/08C21B2400/026C21B2400/062C21B2400/076C21B2400/08F28D13/00Y02P10/20
Inventor 刘松赵韩非孙启栋张浩仪垂杰衣婧豪
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap