Oxygen-enriched and all-oxygen combustion roller kiln combustion control method

A control method, a technology of full oxygen combustion, which is applied in the combustion method, combustion control, and fuel supply adjustment, etc., can solve the problems of complicated pipelines and increase costs, and achieve high combustion rate, reduced work intensity, and high work reliability. Effect

Inactive Publication Date: 2009-01-07
WUHAN UNIV OF TECH
View PDF2 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, to achieve this ratio adjustment, it is necessary to set up different pipe diameters to connect pipelines. If a variety of different combustion ratios are to be adjusted, the pipelines of this method will be very complicated and the cost of this method will be increased.
Moreover, at present, the adjustment

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
  • Oxygen-enriched and all-oxygen combustion roller kiln combustion control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The combustion control method of the oxygen-enriched and full-oxygen combustion roller kiln provided by the present invention is: adopt the pulse combustion control method, keep the oxygen in the combustion atmosphere in the roller kiln at a volume content of more than 21%, and mix and burn with the gas , while automatically adjusting the ratio of oxygen to gas and the combustion time. details as follows:

[0019] (1) Through the closed-loop feedback control of oxygen and gas, the mixing ratio parameters of oxygen and gas are automatically adjusted; at the same time, according to the real-time information of the atmosphere and temperature in the kiln, the given amount of gas and oxygen determined by the firing curve is corrected, Get the real-time control amount of gas and oxygen given amount;

[0020] (2) Under the combined action of the above two control quantity signals, the gas controller and the oxygen controller can adjust the gas valve and the oxygen valve in re...

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 combustion of an oxygen-enriched and full-oxygen combustion roller kiln, a pulse-combustion control method. The mixture ratio of the oxygen and the fuel gas is automatically adjusted by the separate closed-loop feedback control of oxygen and fuel gas, and meanwhile, the mixture ratio is corrected by real-time controlled variable according to the burnt curve; subsequently, under the action of the two signals, the fuel gas and the oxygen actuator adjusts in real-time the fuel gas valve and the oxygen valve, and realize and maintain the preset optimal combustion control ratio; a supervisory computer is used to sample and process the kiln in real-time, then the given quantity of pulse duty-ratio confirmed by the burnt curve is corrected to achieve the real-time controlled variable; and finally, the actuator is controlled and adjusted by the pulse manipulator in real-time to achieve optimal combustion control. The invention is highly efficient, energy-saving, environment-friendly, etc. The oxygen in the combustion atmosphere in the kiln can be kept at more than 21 percent of the volume content and is mixed with fuel gas for combustion; in addition, the proportions of the oxygen and the fuel gas as well as the combustion time are adjusted automatically.

Description

technical field [0001] The invention relates to the field of combustion control methods for industrial kilns, in particular to a method for automatically adjusting the combustion ratio of gas and oxygen mixture in the combustion process of oxygen-enriched and full-oxygen combustion ceramic roller kilns, using high-concentration oxygen including pure oxygen as the Supporting gas, using the control method of pulse combustion control mode. Background technique [0002] At present, domestic ceramic kilns generally adopt the form of continuous combustion control, that is, the temperature and combustion atmosphere in the furnace can meet the process requirements by controlling the flow of fuel and combustion air. Because this continuous combustion control method is often restricted by the regulation and measurement of fuel flow, the control effect of most kilns is not good at present. However, high-grade ceramic products have higher requirements on the uniformity of the temperatu...

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): F23N1/02F23N5/02
CPCY02E20/34
Inventor 陈静袁佑新肖纯魏志华黄必辉徐国成李佳郎建勋程明家
Owner WUHAN UNIV OF TECH
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