Boiler unit and coal mill outlet temperature control method and system thereof

A technology of outlet temperature and control method, applied in the direction of grain processing, etc., can solve the problems of outlet temperature control, outlet temperature control difference, etc.

Active Publication Date: 2019-08-16
GUANGDONG POWER GRID CO LTD +3
View PDF11 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a method for controlling the outlet temperature of a coal mill, which can solve the problem of the difference in the control of the outlet temperature by different personnel and the problem of controlling the outlet temperature too low to ensure safety, and can ensure the safety of the coal mill. Under the premise of operation, try to improve the operation of the outlet temperature of the coal mill, and improve the economical efficiency of the operation of the boiler unit

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
  • Boiler unit and coal mill outlet temperature control method and system thereof
  • Boiler unit and coal mill outlet temperature control method and system thereof
  • Boiler unit and coal mill outlet temperature control method and system thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0055] The core of the present invention is to provide a method for controlling the outlet temperature of the coal mill, which can solve the problem of the difference in the control of the outlet temperature by different personnel and the problem of controlling the outlet temperature too low to ensure safety, and can ensure the safety of the coal mill. Under the premise of operating, try to improve the operation of the outlet temperature of the coal mill and im...

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 coal mill outlet temperature control method. The method comprises the following steps of acquiring coal quality data of a ground coal type of a coal mill; determining a coalmill outlet temperature set value tsp through the coal quality data; and correcting the coal mill outlet temperature set value tsp. The invention further discloses a coal mill outlet temperature control system and a boiler unit comprising the coal mill outlet temperature control method and system. According to the coal mill outlet temperature control method, the coal mill outlet temperature set value is given by acquiring the coal quality data of the ground coal type of the coal mill on line, and the stability and the safe operation requirement of the coal mill outlet temperature are comprehensively considered, so that the operation safety of the coal mill is improved, the difference of the level and the operation habit among different operators is avoided, the outlet temperature of the coal mill can be effectively improved, and accordingly the operation economy of the boiler unit is improved.

Description

technical field [0001] The invention relates to the technical field of coal mill outlet temperature control, in particular to a coal mill outlet temperature control method. The invention also relates to a coal mill outlet temperature control system and a boiler unit with the coal mill outlet temperature control method and system. Background technique [0002] The outlet temperature of the coal mill is an important parameter for the operation of the pulverized coal preparation system, and has a direct impact on the economy of the coal-fired unit. For automatic adjustment, the control relationship is as follows: [0003] V cold =PID(t sp ,t pv ); [0004] where: V cold is the opening of the cold air door, %; [0005] t sp is the setting value of the outlet temperature of the coal mill, °C; [0006] t pv is the actual temperature at the outlet of the coal mill, °C. [0007] In the prior art, the coal mill outlet temperature setting value t sp According to the requir...

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): B02C25/00
CPCB02C25/00
Inventor 沈跃良颜祝明蒋建姚顺春
Owner GUANGDONG POWER GRID CO LTD
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