Development, Operation and Management of Bag Dust Removal Technology in Cement Industry

Cement industry as the largest emitter of atmospheric dust in China, how to control and further reduce dust emissions has been the focus of cement industry emissions.

In order to achieve the end of the "Twelfth Five-Year Plan", China's cement industry emissions of particulate matter in 2009 based on the goal of reducing 50%, "on the cement industry energy-saving emission reduction guidelines" clearly required 2011-2015 existing cement kiln ESP To bag filter (low pressure pulse dust collector), for cement enterprises, must be through the application of a variety of technologies such as electrical conversion bag to meet the national requirements. Therefore, a reasonable choice of dust removal equipment, reducing filter bag consumption, enhance the dust removal effect is still the most concern for the cement industry for some time to come.

With the adjustment of China's cement industry policy and the large-scale cement production line, there is a large amount of dust collector, kiln head and kiln tail dust removal in each of these large-scale cement production lines, which is the key point of dust emission in the cement industry. Large-scale cement plant kiln tail dust, in the past mostly used electrostatic precipitator, the higher concentration of dust emissions. With the strict implementation of environmental standards, kiln head, kiln tail dust emissions must reach 30mg / Nm3, from the total emissions, the key areas require kiln head, kiln dust emission concentration should be less than 20mg / Nm3, or even 10mg / Nm3 the following, ESP to bag filter should be the only kiln, kiln tail dust the only way should be used regular manufacturers of high-quality filter material.

Cement industry to further control the smoke, dust emissions, PM2.5 capture will be the focus, in technology, developed countries are also actively developing new technologies and new equipment and applied to heavy polluting industries, the concentration of particulate matter decreased year by year. Bag filter is to control particulate matter, especially PM2.5 ultrafine particles the most effective equipment, filter material is the core. In view of the characteristics of the dust in the cement industry, it is necessary to adopt a customized design scheme on the engineering and equipment to optimize the design and the application of supporting technologies so as to significantly reduce the overall particulate emissions in the cement industry.

Domestic bag dust development is relatively late, but due to market demand and competition promotion, technology has developed rapidly; domestic fiber and filter basically reached the level of similar products in the world, in the heavy pollution industry dust control applications, from The overall design of precipitator, equipment manufacturing and installation, field application and support technology have made breakthroughs, large-scale equipment, system reliability and engineering experience have been rapid development. With the development of baghouse dust removal industry, a number of enterprises have also emerged among them. Compared with imported products from abroad, many domestic dust removal equipments have basically been able to meet the technical requirements of large-scale cement manufacturers. How to manage and use the cement industry dust removal equipment, professional environmental services company operation and management will become the cement dusting industry needs attention.

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