Method for controlling hot-air temperature of hot-air drier

A hot air temperature, dryer technology, applied in dryers, drying gas layout, drying and other directions, can solve the problems of poor temperature control effect, can only be controlled at about 2%, complex mathematical models, etc., to improve control Effect and control accuracy, stable effect of dryer and drying system

Inactive Publication Date: 2010-07-21
BEIJING NEW BUILDING MATERIALS PLC
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complexity of the mathematical model of the dryer itself, the use of classical control theories and methods, such as proportional integral (PI) or proportional integral differential (PID) adjustment, has little impact on the system, the effect of temperature control is not good, and the accuracy is generally only controlled at around 2%

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 hot-air temperature of hot-air drier
  • Method for controlling hot-air temperature of hot-air drier
  • Method for controlling hot-air temperature of hot-air drier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention.

[0032] figure 1 It is a composition schematic diagram of an embodiment of the temperature fuzzy control system of the hot air dryer of the present invention. As shown in the figure, the fuzzy control system embodiment 100 is used to adjust the hot air temperature of the hot air dryer 200 with higher precision, and it mainly includes a feedback module 120, a control module 130 and a servo module 140, wherein:

[0033] The feedback module 120 is used to collect the actual temperature value of the hot air output by the hot air dryer 200, and after obtaining the temperature signal containing the actual temperature value, convert the temperature signal into a feedback sign...

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 hot-air temperature of a hot-air drier, which is used for regulating the temperature of the hot air output by a hot-air drier. The method comprises the following steps: receiving a given temperature value, and acquiring the actual temperature value of the hot air output by the drier; comparing the given temperature value with the actual temperature value to acquire a temperature difference; acquiring the temperature difference change rate according to the temperature difference; after fuzzifying the temperature difference and the temperature difference change rate, inquiring a preset control decision table, and acquiring a mapping controlled quantity; and regulating the temperature of the hot air output by the drier by using the mapping controlled quantity as a control signal. Various implementation modes of the invention are used to realize the regulation on the temperature of the hot air output by the hot-air drier.

Description

technical field [0001] The invention relates to a control method, in particular to a method for controlling the hot air temperature of a hot air dryer. Background technique [0002] In the prior art, most hot air dryers are generally large hysteresis systems due to their relatively large time constants. The temperature control of the large hysteresis system itself is a difficult problem. In addition, the mathematical model of the hot air dryer is not easy to establish, resulting in low accuracy of hot air temperature control. [0003] Wood dryers, gypsum board dryers, etc. are common hot air dryers, among which gypsum board dryers are used in gypsum board production lines. The production of gypsum board is a continuous production process. The drying of gypsum board is an important link in the production of gypsum board. The degree of drying directly affects the quality of the finished gypsum board. [0004] At present, the drying of gypsum board is mainly through the hot 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 Applications(China)
IPC IPC(8): F26B21/10
Inventor 周建中白宏成杨震李瑞亭候迎春
Owner BEIJING NEW BUILDING MATERIALS PLC
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