System and method for monitoring rapping process
A technology of rapper and power controller, which is applied in the direction of chemical instruments and methods, electrode cleaning, electrostatic effect separation, etc. It can solve the problems of reducing the collection efficiency of dust collectors, increasing atmospheric emissions, and reducing the gas volume of dust collectors.
Inactive Publication Date: 2014-03-12
THE BABCOCK & WILCOX CO
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] However, during operation, many operational issues associated with the cleaning process can be experienced
Excessive rapping, for example, can cause particulate matter to tumble off the plate into the gas flow, where it can be reentrained into the gas flow and expelled from the exhaust stack, thereby increasing emissions into the atmosphere
Conversely, insufficient rapping may prevent removal of particulate matter from the surface to be cleaned
In both cases, because the collection efficiency of the dust collector is reduced, the amount of gas that the dust collector can handle is also reduced
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0012] The intensity of the rapping performed by a rapper in an electrostatic precipitator (ESP) and the corresponding cleaning force delivered to the internal components of the ESP is determined at least in part by the height at which the hammer is lifted. This is called rapper lift. If the hammer is not lifted high enough, there will be insufficient cleaning. Conversely, if the hammer is lifted too high, it may cause damage to the internal components of the ESP. Also, an ESP may include multiple rappers, which may interfere with ESP efficiency if the multiple rappers are operated in a manner that does not facilitate the multiple rappers working together. Accordingly, it is desirable to finely tune the mechanical operation of the rappers to provide thorough cleaning without damage, and to control the performance of each rapper so as not to interfere with the performance of another rapper. It is an object of the present invention to provide a system for precise and accurate ...
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
Login to View More Abstract
A method for monitoring operation of a rapper in an electrostatic precipitator using a rapper control system is described. The method includes determining model electrical characteristics of the rapper. The model electrical characteristics of the rapper correspond to model mechanical operating characteristics of the rapper. The method also includes storing data corresponding to the model electrical characteristics and the model mechanical operating characteristics of the rapper, determining actual electrical characteristics of the rapper, and comparing the actual electrical characteristics of the rapper to the stored model electrical characteristics to determine actual mechanical operating characteristics of the rapper.
Description
technical field [0001] The field of the invention relates generally to electrostatic precipitators for air pollution control and, more specifically, to the rapping process for cleaning the internal collector plates and discharge electrodes of electrostatic precipitators. Background technique [0002] The increasing emphasis on environmental quality has led to ever stronger regulatory controls on industrial emissions. One process used to control air pollution facilitates the removal of unwanted particulate matter from air streams via electrostatic precipitation. Known electrostatic precipitators electrically charge and collect particulate matter generated in industrial processes such as those occurring in cement plants, pulp and paper mills, and utilities. For example, particulate matter can be negatively charged and attracted to and collected by a positively charged metal plate. Alternatively, the particulate matter can be positively charged and attracted to and collected ...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B03C3/76
CPCB03C3/88B03C3/763
Inventor T·L·法默V·巴达米C·E·西利D·F·约翰斯顿M·M·马勒T·G·劳伦斯
Owner THE BABCOCK & WILCOX CO