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

Method and device for evaluating liquid permeability of blast furnace charge column

An evaluation method and evaluation device technology, which can be applied in the fields of measurement device, permeability/surface area analysis, suspension and porous material analysis, etc., which can solve the problems such as the failure to intuitively give the change law of the liquid permeability of the material column and the complicated operation. , to achieve the effect of intuitive and reliable evaluation results, simple operation and solving evaluation problems

Active Publication Date: 2019-11-01
WUHAN UNIV OF SCI & TECH
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above two methods can obtain the relevant information of the liquid permeability of the blast furnace material column, the operation is relatively complicated, and the change of the liquid permeability of the material column under the conditions of different slag iron characteristics or different particle size distributions of the material column cannot be intuitively given law

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
  • Method and device for evaluating liquid permeability of blast furnace charge column
  • Method and device for evaluating liquid permeability of blast furnace charge column
  • Method and device for evaluating liquid permeability of blast furnace charge column

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0039] The preparation of the material column sample is obtained by simulating the temperature of the lower material column of the blast furnace shaft and the pressure of the upper material column. After placing coke with a grain size of 20-25mm in the customized quartz crucible 1, the height of the coke material column is controlled at 200-250mm, and a 5kg superalloy column is loaded above the coke material surface to simulate the load of the coke material column on the upper material column pressure. Then put the sample crucible in a 1300°C high-temperature vacuum carbonization furnace for carbonization for 2 hours, and take out the crucible after the high-temperature vacuum carbonization furnace cools down to room temperature.

[0040] In the preparation of the material column sample of the present invention, double samples are prepared for experiments, so as to avoid artificial errors.

[0041] When using the drop test device to carry out the resin penetration material colu...

Embodiment 1

[0056] (1) Prepare 20-25mm coke particles, put them into the quartz crucible 1, and put them into a height of 200mm; then place the superalloy column on the surface of the coke column;

[0057] (2) Then place the quartz crucible 1 in a high-temperature vacuum carbonization furnace. The high-temperature vacuum carbonization furnace rises from room temperature to 1300° C. at a heating rate of 10° C. / min, and then heats it for 2 hours, stops heating, and takes out the sample after naturally cooling to room temperature;

[0058] (3) The heating wire 2 is spirally wound on the outer wall of the quartz crucible 1, the operating position of the quartz crucible 1 is fixed with a support 4, and the glass cup 3 is placed under the quartz crucible 1 to collect the resin dripped in the experiment;

[0059] (4) Open heating controller 5, video camera 7, set the temperature of heating wire 2 and the parameter of video camera 7 by computer 6;

[0060] (5) Pour the pre-prepared resin into the...

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
heightaaaaaaaaaa
heightaaaaaaaaaa
heightaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of blast furnace iron-making and particularly relates to a method and device for evaluating the liquid permeability of a blast furnace stock column. The device comprises a glass cup, a long-cylinder-shaped quartz crucible and a support and is characterized in that a heating wire spirally winds the outer wall of the quartz crucible, the support comprisesa lower support plate and an upper transverse rack, the glass cup is arranged on the support plate, and the quartz crucible is hung on the transverse rack. The method includes: preparing a stock column sample, performing an experiment using resin to permeate the stock column, and evaluating the liquid permeability of the stock column. The method and device for evaluating the liquid permeability of the blast furnace stock column has the advantages that conditions such as the forming conditions of the stock column inside a blast furnace, slag and iron viscosity change, particle size change in the stock column are considered, and a drip experiment device capable of simulating the liquid permeability of the blast furnace stock column is developed.

Description

technical field [0001] The invention belongs to the technical field of blast furnace ironmaking, and in particular relates to a method and a device for evaluating the liquid permeability of a blast furnace material column. Background technique [0002] The liquid permeability of the blast furnace charge column has an important impact on the stability of the blast furnace, high-efficiency smelting, safety and longevity, and high coal ratio operation. Maintaining good material column liquid permeability is an important aspect of the daily management of blast furnace operators. At present, there are mainly two ways to evaluate the liquid permeability of the blast furnace material column: one is to judge indirectly through the temperature of the hearth bottom carbon brick and the center of the furnace bottom; Sampling analysis is carried out to calculate the liquid permeability index of the material column. Although the above two methods can obtain the relevant information of ...

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): G01N15/08
Inventor 徐润生王炜薛正良
Owner WUHAN UNIV OF SCI & TECH
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