Method for controlling furnace pressure of heating furnace with dual flues

A control method and heating furnace technology, which are applied in heat treatment process control, heat treatment furnaces, furnaces, etc., can solve the problems of increasing the heat consumption of the heating furnace, production impact, and the inability to effectively control the furnace pressure, so as to ensure the heating quality and reduce the heat. consumption and environmental pollution

Inactive Publication Date: 2010-06-30
PANGANG GRP PANZHIHUA STEEL & VANADIUM +1
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the heating furnace has two flues to exhaust smoke, due to the difference in the structure of the two flues, the draft force of the two flues is uneven. When the electric actuators in the two flues are synchronously adjusted, the furnace The pressure cannot be effectively controlled, which not only increases the heat consumption of the heating furnace and pollutes the environment, but also cannot guarantee the heating quality of the billet, which seriously affects the production

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 controlling furnace pressure of heating furnace with dual flues
  • Method for controlling furnace pressure of heating furnace with dual flues
  • Method for controlling furnace pressure of heating furnace with dual flues

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings. However, it should be understood that the above content of the present invention is not limited to the following embodiments, and all technologies implemented based on the above content of the present invention belong to the scope of the present invention.

[0010] figure 1 It is the circuit diagram of the furnace pressure control for the heating furnace. refer to figure 1 , the soaking section 1 of the heating furnace is provided with a differential pressure transmitter 7 for detecting the furnace pressure; the front and rear ends of the heat exchanger 11 in the first flue and the heat exchanger 12 in the second flue are respectively provided with thermocouples 10, thermoelectric The pair 10 is used to detect the exhaust gas temperature at the front and rear ends of the heat exchanger 11 in the first flue and the exhaust gas te...

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 for controlling the furnace pressure of a heating furnace with dual flues. In the method, a flue damper electric executer on one side of the heating furnace is controlled according to a furnace pressure signal to control the opening of a flue shutter on one side of the heating furnace, and the flue damper electric executer on the other side of the heating furnace is controlled according to the furnace pressure signal obtained by compensating the furnace pressure signal with temperature difference signals of heat exchangers in the flues on the two sides of the heating furnace to control the opening of the flue shutter on the other side of the heating furnace, so that differential control over the opening of the flue shutters on the two sides of the heating furnace is realized to further effectively control the furnace pressure and ensure the heating quality of billets.

Description

technical field [0001] The invention relates to the field of furnace control. More specifically, the present invention relates to a method for differentially controlling furnace pressure in a two-flue heating furnace. Background technique [0002] In the field of metallurgy, the heating furnace is a large-scale key equipment used before the billet enters hot rolling. Meet rolling requirements. During the operation of the heating furnace, various factors need to be controlled, among which, the control of the furnace pressure of the heating furnace is very important. [0003] When the pressure of the furnace is too high, the flame will be ejected from the furnace; when the pressure of the furnace is too low, the furnace will suck a lot of cold air. Therefore, in order to prevent the cold wind from pouring back and the flame from being sprayed out of the furnace, a slight positive pressure should be maintained in the furnace of the heating furnace. When the heating furnace ...

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): C21D9/70C21D11/00
Inventor 肖燕红
Owner PANGANG GRP PANZHIHUA STEEL & VANADIUM
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