as the national has implemented increasingly stringent emission standards recent years, bag filter has taken increasingly dominant role in the market.among the pulse blow bag filters, the one with charater of powerful cleaning is an efficient dust removal equipment which develops very rapidly. the product is also very widely used as it is designed to achieve a very low particulate emission concentration which could effective control the air quality and human health effects of fine particles such as pm2.5 pollution. the equipment is now taking a very importmant role in the air polution treatment.
electromagnetic pulse valve is the generating equipment for cleaning flow of the pulse bag filter. it's performance and quality determine the key factor for cleaning effect and equipment level of pulse bag filter.
for half a century, rubber diaphragm has been broadly used as the switch component for a solenoid valve which supplies the air resource to the pulse-jet bag filter, promoted the development of pulse jet cleaning technology and contributed to the pollution control for society as well. at the same time, rubber sheet achieve the on-off based on its elastic deformation movements. that limits the valve to meet the trend of the filter system design requirement which is bigger blow performance and smaller size.
to meet the bag filtration system developing trend, which is large scale, high efficiency, long bag and higher temperature, our company developed piston style valve (slide flap) instead of the diaphragm. the piston style valve has higher pulse peak value and quicker climbing speed. thus it can generate stronger pulse air flow, increase dust cleaning area 20% under the same condition and reduce the installation volume 10% less to make the bag layout more efficient. also because the piston design has higher heat resisting and corrosion preventing nature, it will give the valve longer operating life.
electromagnetic pulse valve is a valve to open transiently from 50 to 250ms. in the product information for traditional pulse valve products, it only describes the models, specifications, dimensions, technical conditions for usage, diaphragm life, flow coefficient etc., yet the important description on its blowing performance is commonly neglected. in the product manual prepared by shangtai, it outlines the key indicators for every type of electromagnetic pulse valve, like output-input pressure ratio, the output rate of pressure rise, the pulse width difference between gas and power, injection flow and etc. it also provides injection volume curve and switching characteristics figures for user reference. based on the information, the equipment composition of pulse blow bag filter could be more scientifically reasonable and the filter bag life could be extended with energy saving as well.
pulse blow bag filter is a machinery system combined with manifold box, electromagnetic pulse valve, injection pipe and etc. among the components, the electromagnetic pulse valve provides the vibrating flow for dust removal.the blow flow is transitted and distributed through the blow pipes and forms the shock wave and reverse flow in the filter bag through the holes on the pipes. the filter bag is then deformed and the dustcake stacked on the outer wall is peeled off.
the dust remover equipment should be onsite adjusted to establish a reasonable dust removing(blowing) mechanism.details determine success or failure, only by focusing on every details and correctly grasping principles of each details, may the whole system reach the best performance.