Abstract: Coal dust control system is safe and civilized production plant compliance, the first class of important issues, our results using the latest high-tech development and production of new multi-tube high voltage electrostatic precipitator, used by power plants proved to be practical a high efficiency, high reliability of an ideal dust removal equipment.
One dust causes coal conveyance system
Power plant coal handling system is at the higher level of dust from the main belt equipment to the level of coal on the coal dust cause a large drop; another belt running, because of high fluctuations of secondary dust; dust flying the most serious location is off the coal scuttle coal handling system guide trough between the export and bunker coal plow down coal port devices, as blanking impact airstream guide trough from coal exports and a conspicuous gap Mifengbuyan, resulting in on-site space dust exceeded its operating personnel to the field against the body, affect the plant safe and civilized production.
Second, the program more commonly used dust
Domestic coal conveyance system mainly negative pressure trough lead dust cleaning and two spray on dust belt: negative pressure trough dust lead them there are high-voltage electrostatic dust removal, dust bag filter, and three types of bath way, we used several methods to compare vacuum dust:
1, bag filter Now have more power plants using bag filter method, the advantage of simple structure, small investment, in normal circumstances, a higher collection efficiency. The disadvantage is that in the case of wet coal, as coal eyes moist and high-speed airflow through the bag is easy to form condensation and other factors, it is easy to stick blocking bag eyes, dry bag must be heated and frequent earthquakes start playing device, cleaning results are not satisfactory, then dust enters the non-normal operation and thus greatly reduce the collection efficiency, and must often change bag, system maintenance workload. After extensive understanding of most of the power plant design and installation of bag filter are due to the equipment itself and maintenance of the reason can not properly put into operation, dust removal is not ideal. Another fan power requirements greater compare the power consumption.
2, dust bath Dust bath features simple structure, investment is small, but the use of bath dust, fan power required to be large, in addition to easily run power outside noise, air pressure control could easily lead to poor ability to capture water to reduce dust, collection efficiency is difficult to achieve the ideal state, also have a lot of water, and to clarify the treatment of sewage, a large number of sediment transport remains to be done after the coal handling, on-site installation space is very cramped position, the plow layer of coal in the coal bin I can not install the device blanking bath dust removal device.
3, high voltage electrostatic precipitator Shown DCY-type high voltage electrostatic precipitator body for the multi-tube vertical structure, parallel tube for the very dust, pipe center is the corona wire, when the corona wire with a certain degree of DC high voltage, the corona discharge line will be produced and released a large number of high-speed electronics and positive and negative ions, when the dust gas flow rate by a certain passage in the cylinder body, high-speed electronics and its impact, and adsorption in the dust, so that the charged dust, charged dust in the electric field under the action of force, high-speed run to the positively charged cylinder, after the release of the charge deposited on the cylinder wall, by weight after the dust accumulation, automatically stripping down on set ash bucket, the belt through the lock valve automatically discharged to the work surface was taken away, you can prevent high concentrations of dust seal from the guide trough exports and a conspicuous gap, I use the latest high-tech companies develop and produce new results DCY multi-tube high voltage electrostatic precipitator for the characteristics of the coal handling system structure and electric field control improvements, improved electrostatic precipitators electrostatic precipitators to overcome the old days used in the coal dust collection tube system easy to fouling and easily produce high-pressure due to air moisture creeping short circuit problem. The entire collection efficiency electrostatic precipitator with high 99, dealing with large air volume, negative pressure ventilation capacity up to 15,000 cubic meters / hour, low power consumption, not long gray tube, to avoid the whole play, basic maintenance, no noise, stable operation reliable number of advantages.
3, multi-tube high voltage electrostatic precipitator Model Selection and Installation of the form
1, coal transfer station
Can choose two of each coal transfer station 2 sets DCY2.5-7 high voltage electrostatic precipitator, the dust collector for the seven modular, capacity, up to 15,000 cubic meters / hour, high-voltage current of 10mA, operating weighs 6 tons. Installation location in the corresponding guide trough belt conveyor tail export is top of the steel support structures using steel dust collector body repair platform, see layout diagram. Were each equipped with a filter belt to ensure the two belt requirements to run when the dust. I am a professional writer from Mp3 Player Manufacturers, which contains a great deal of information about infrared surveillance cameras , ccd board camera, welcome to visit!
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