Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Afterheat recovery system and method of dry granulating liquid slag

A waste heat recovery system and liquid slag technology, applied in the field of waste heat recovery, can solve the problems of slag granulation heat and recovery, and achieve the effects of increasing glass content, ensuring granulation quality, and improving granulation efficiency

Active Publication Date: 2014-08-06
XI AN JIAOTONG UNIV +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The purpose of the present invention is to provide a waste heat recovery system and method for dry granulated liquid slag to solve the problems of slag granulation and heat recovery in blast furnaces and other equipment

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
  • Afterheat recovery system and method of dry granulating liquid slag
  • Afterheat recovery system and method of dry granulating liquid slag
  • Afterheat recovery system and method of dry granulating liquid slag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] The specific embodiment is described below in conjunction with accompanying drawing:

[0044] see Figure 1 to Figure 3b As shown, a waste heat recovery system for dry granulated liquid slag in the present invention is composed of three parts: a granulation bin 1, a moving bed 2 and a waste heat recovery system.

[0045] The inner surface of the granulation bin 1 is arranged with a granulation bin water-cooled wall 8, and the outer surface is covered with thermal insulation materials; the top center of the granulation bin 1 is provided with a slag pipe 4, and the slag pipe 4 extends into the granulation bin 1; the end of the slag pipe 4 There is a centrifugal granulator 5 at the bottom, and the centrifugal granulator 5 is driven to rotate by the motor 7 at the lower part; the centrifugal granulator 5 adopts a shallow plate structure, with a diversion cone 51 in the center and arc-shaped fins around it 52. The tangent to the edge of the centrifugal granulator 5 forms an...

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
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses an afterheat recovery system and an afterheat recovery method of dry granulating liquid slag. The system comprises a granulating cabin, a moving bed and an afterheat recovery system, the inner surface of the granulating cabin is provided with a granulating cabin water cooling wall, the center of the top of the granulating cabin is provided with a slag pipe, the slag pipe extends into the granulating cabin, the lower part of the tail end of the slag pipe is provided with a centrifugal granulator, the centrifugal granulator is connected with a motor arranged at the lower part of the centrifugal granulator, the lateral side of the centrifugal granulator is provided with an air supply pipeline, an annular air opening is formed between the centrifugal granulator and the air supply pipeline, the lower part of the granulating cabin is provided with the moving bed, the inner surface of the moving bed is provided with a moving bed water cooling wall, the top of the moving bed is provided with an air outlet, the bottom of the moving bed is provided with a slag discharge device, an air inlet device is arranged above the slag discharge device, the afterheat recovery system comprises a primary dust remover, an afterheat boiler, a secondary dust remover, an exhaust fan and a chimney which are connected in sequence, and the primary dust remover is connected with the air outlet arranged at the top of the moving bed. The system and the method effectively solve the problems of heat recovery and furnace slag granulation of equipment such as a blast furnace.

Description

technical field [0001] The invention relates to the technical field of waste heat recovery, in particular to a waste heat recovery system and method for dry granulated liquid slag. Background technique [0002] China is currently the world's largest steel producer. China's steel output has been ranked first in the world for 16 consecutive years, and it is far ahead of other countries. In 2011, the steel output in mainland China was 683 million tons. The heat contained in the liquid slag produced in the process of smelting steel is huge. From the perspective of energy saving and environmental protection and improving the economic benefits of steel plants, the heat recovery and The resource utilization of blast furnace slag is very necessary. The temperature of blast furnace slag is generally between 1400 and 1550 °C. Each ton of slag contains (1260~1880)×10 3 The sensible heat of kJ is equivalent to the calorific value of 60kg standard coal. For every ton of pig iron pro...

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 Patents(China)
IPC IPC(8): C21B3/06F27D17/00
CPCY02P10/25Y02W30/50
Inventor 王树众王龙飞陈林罗明都宇方文振
Owner XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com