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

Method for automatically correcting differential-pressure compensation factors of weighing of top charging bucket

A self-correction and weighing technology, which is applied in the field of differential pressure compensation self-correction of furnace top tank weighing, can solve problems such as linear compensation coefficient drift, avoid large fluctuations, reduce manual adjustments, and improve automation levels Effect

Active Publication Date: 2011-03-16
WISDRI ENG & RES INC LTD
View PDF4 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned technical problems, the purpose of the present invention is to provide a self-correction method of differential pressure compensation for the weighing of furnace top tanks, which uses a periodic memory compensation method to correct the compensation coefficient of the weighing differential pressure. This method solves the problem of blast furnace The problem of linear compensation coefficient drift caused by external factors enables the top material distribution system of the blast furnace to control the material distribution flow stably, uniformly and accurately, thereby improving the smelting level of the blast furnace

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 for automatically correcting differential-pressure compensation factors of weighing of top charging bucket
  • Method for automatically correcting differential-pressure compensation factors of weighing of top charging bucket
  • Method for automatically correcting differential-pressure compensation factors of weighing of top charging bucket

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] First the principles involved in the present invention are analyzed:

[0033] figure 1 It is a system structure diagram provided by the present invention, wherein the whole system is composed of PLC controller, furnace top weighing and measuring device, pressure transmitter and upper computer. The PLC controller receives the data sent back from the on-site furnace top weighing measuring device and pressure transmitter, analyzes and calculates the data according to the current operating status of the blast furnace, periodically corrects the compensation data, and saves the corrected data in the PLC In the memory database of the controller, and displayed on the host computer.

[0034] Under the normal production conditions of the blast furnace, the pressure on the top of the furnace is always at a high pressure of 1.5 to 2.5 kg. Under the action of the pressure on the top of the furnace, the material tank is subjected to a buoyancy force proportional to the cross-section...

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 relates to the technical field of bell-less top blast furnace, in particular to a method for automatically correcting the differential-pressure compensation factors of weighing of a top charging bucket. The invention comprises the following steps: determining the differential-pressure compensation factors of weighing in an ideal state; monitoring D-values between actual weight values and the weight values subjected to compensation so as to determine compensation values of weighing; correcting the compensation values according to the D-values of weighing, wherein the monitored data comprise the pressure and weight of a charging bucket, the pressure in a blast furnace, and the data obtained by the weighting measurement of the blast furnace; and carrying out periodical correction on the differential-pressure compensation factors of weighing based on differential values through comparing the weights of the charging bucket before and after pressurizing and the data obtained by the weighting measurement of the blast furnace. In the invention, because the differential-pressure compensation factors of weighing can be corrected periodically, the invention can effectively reduce the interference of external factors of blast furnaces on weighting measurement, improve the automation level, avoid the substantial fluctuation of weighing values caused by the influence of external interference factors, and create conditions for the stability and high yield of the blast furnace.

Description

technical field [0001] The invention relates to the technical field of blast furnaces with bellless tops, in particular to a differential pressure compensation self-correction method for weighing tank tops. Background technique [0002] At present, blast furnaces generally adopt material-free bell tops. In order to improve smelting efficiency, modern blast furnaces have higher and higher requirements for the refinement of cloth. Due to the harsh environment of the furnace top and the limitation of installation conditions, the weighing detection of the bellless furnace top has become a difficult problem. [0003] Now top weight distribution has become the trend of blast furnace distribution, and the prerequisite for gravimetric distribution is accurate weighing of tank scales. Conventional weighing methods cannot meet the requirements of blast furnace tank weighing, and a differential pressure compensation system must be used to eliminate the impact of blast furnace pressure...

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
IPC IPC(8): C21B7/24C21B5/00
Inventor 张骋杰吴晨徐岸非赵菁黄瑛
Owner WISDRI ENG & RES INC LTD
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