Method for changing electrostatic precipitator in coal-fired power plant to bag type dust catcher
A technology of electrostatic precipitator and bag filter, which is applied in the field of dust removal equipment for coal-fired power plants. Large dust concentration range, low maintenance cost, and low running resistance
Active Publication Date: 2008-06-11
GUODIAN SCI & TECH RES INST
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In many developed countries such as Australia, coal-fired power plant boilers are increasingly using bag filters. It can be said with certainty that bag filters have broad application prospects in coal-fired power plants. The industrial test of bag filter was carried out in several small power plant boilers. Due to the backwardness of the overall level of bag filter at that time, the lack of reliable equipment and materials and operation control technology, it was ultimately unsuccessful, so the bag filter Dust collectors are not used in the vast majority of coal-fired thermal power plants in my country
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
[0020] like Figure 1-Figure 3 Shown, the present invention operates according to the following steps: dust collector housing (1) transformation
[0021] Remove the high-voltage isolating switch at the top; remove the anode plate, cathode wire, hanging device, and rapping device inside the electrostatic precipitator, and remove the rapping motor, cables, bridges, platforms, and insulation outside the electrostatic precipitator; then press the bag type The design of the dust collector requires the modification of the shell and the installation of related equipment and components of the bag filter. The filter bag 1 is the core component of the bag filter, so the selection of the filter material becomes the key to the success of the transformation. According to the flue gas characteristics of each coal-fired power plant, the appropriate filter material is optimally selected to reduce the running resistance and prolong the service life. Reduce operation and maintenance costs. (I...
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 using bag duster to replace electrostatic duster in the electric power plant using coal as its fuel includes such steps as detaching the anode plates and cathode wires from the inside of casing, arranging the patterned plate with multiple filtering bags on it at the upper inside of said casing, retaining original ash bucket as lower case body, reforming original fume outlet box by closing original fume outlet and arranging a new fume outlet box, adding at least one airflow distribution plate in original fume inlet box, adding a pre-coating system in the fume inlet flue of fume inlet box, and arranging a spray system in the cleaning box.
Description
[0001] Involved areas [0002] The invention belongs to dust removal equipment for coal-fired power plants, and relates to a method for changing the original electrostatic dust collector into a bag type dust collector. Background technique [0003] At present, most coal-fired power plant boilers in China use electrostatic precipitators. With the promulgation and implementation of new national environmental protection standards, higher requirements have been put forward for the emission control of air pollutants (such as dust emission concentration, SO2 emission, etc.) in coal-fired power plant boilers. Taking desulfurization measures will change the specific resistance of the dust in the flue gas, exceeding the optimum range of the electrostatic precipitator, resulting in a decrease in the dust collection efficiency of the electrostatic precipitator, which cannot meet the current emission standards. Among the current dust removal equipment, the most reliable one that can meet...
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): B01D46/02F23J15/00
Inventor 张世山肖宝恒方爱民裴爱芳周和平李瑾叶毅科沈祥云陆小成
Owner GUODIAN SCI & TECH RES INST