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

Method and system for monitoring fuel ratio of blast furnace in real time

A technology of real-time monitoring and fuel ratio, applied in general control system, control/regulation system, multiple fluid ratio control, etc., can solve the problem of poor grasp of the best timing and degree of coal injection volume adjustment, and poor uniformity of operator operation , inaccurate calculation of material rate and fuel ratio, etc., to achieve the effect of reducing operation randomness, reducing blast furnace fuel consumption, and standardizing operation behavior

Inactive Publication Date: 2010-12-29
JIGANG GRP
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are three main difficulties for operators in controlling fuel ratio: first, the calculation of material rate and fuel ratio is not accurate and timely; second, it is difficult to grasp the best timing and degree of coal injection adjustment; third, different teams operate Poor operational coordination among personnel
The usual solution is to strengthen the training and performance appraisal of the operator's operating skills to improve their operating skills and sense of responsibility, but it is often difficult to solve the problem due to individual differences

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 system for monitoring fuel ratio of blast furnace in real time
  • Method and system for monitoring fuel ratio of blast furnace in real time
  • Method and system for monitoring fuel ratio of blast furnace in real time

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0029] see figure 1 , step S1, the operator calculates the detected value of [Si] content in molten iron, and inputs the management operation computer through manual or network input before the iron tapping ends, can adopt fluorescence detector to detect [Si] content, also can adopt other known technology, in This will not be repeated here. Step S2, the operator sets the fuel ratio control upper limit RLB according to furnace conditions max with the lower control limit RLB min Enter the management operation computer, and calculate the RLB 合适 =(RLB max +RLB min ) / 2. Step S3, determining the furnace temperature control interval, the operator presets the molten iron [Si] into five control intervals in the computer, [Si]max , lower limit RLB min 、RLB 合适 Look up Table 1 to calculate the fuel ratio control value RLB.

[0030] ...

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 discloses a method and a system for monitoring the fuel ratio of a blast furnace in real time, which is characterized in that: the method comprises the following steps: (1) calculating amonitoring value of Si content in molten iron of the current heat and inputting the monitoring value to a computer; (2) calculating a control value RLB of the fuel ratio by a fuel ratio calculation module; (3) obtaining a detection value Ls of a baiting speed; (4) inputting the control value RLB of the fuel ratio, a detection value K of coke ratio and the detection value Ls of the baiting speed to a calculation module of a coal injection speed for calculation, and outputting a control value M of the coal injection speed; and (5) inputting the control value of the coal injection speed to an industrial control computer; and issuing a command of coal injection amount to coal injection control equipment of the blast furnace according to the control value of the coal injection speed. The method and the system simulate the operating thinking of a blast furnace operator through the computer, standardize the operating action of the operator, reduce the operating randomness varying from personto person and reduce the failure rate of the operator to the maximum extent.

Description

technical field [0001] The invention relates to blast furnace operation control technology, in particular to a method and system for real-time monitoring of blast furnace fuel ratio. Background technique [0002] A blast furnace is a high-pressure closed reaction vessel that can reduce iron from iron ore. The reducing agent and heat source required to maintain its reduction reaction mainly come from coke and coal powder. The amount of coke consumed for smelting one ton of pig iron is the coke ratio, the amount of pulverized coal consumed for smelting one ton of pig iron is called the coal ratio, and the sum of the coal ratio and the coke ratio is the blast furnace fuel ratio, and the unit is kg / t. Blast furnace fuel ratio is an important economic and technical index to measure the energy utilization level of blast furnace. [0003] Furnace temperature ([Si] content in molten iron, unit %, weight ratio) control is an important control content for blast furnace operators. A ...

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): G05D11/13G05B19/048
Inventor 李传辉杨士岭张瑞堂李丙来法泉营郝之峰王连杰焦吉成邓君堂张云陈钧刘德楼丁杭州
Owner JIGANG GRP
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