Category Archives: article

Scr in the cement industry, what is the technical difficulties

SCR technology for denitrification in China more than 95% of the thermal power industry production line is widely used, but at the same time the technology in the glass furnace and other industrial furnaces also successfully applied, such as the cement industry. But there is a technical difficulty is low-temperature catalyst, in the “denitrification catalyst […]

What are the reasons for the reduced efficiency of the denitration catalyst?

SCR technology is the most mature denitrification technology in denitrification technology, its NOx removal rate can reach more than 80%. At present, SCR technology has become the mainstream technology of denitration in power plants at home and abroad. SCR denitrification technology using ammonia as a reducing agent, into the temperature of about 280 ~ 420 […]

Filtration of hydraulic oil filter

Unless regular maintenance is carried out, the hydraulic oil, mechanical oil and refrigerated oil will remain contaminated, regardless of the installation and operation of the equipment. A reduction in the characteristics of the hydraulic oil is accompanied by an immediate failure of the equipment which is unavoidable. The cost of equipment failure than the hydraulic […]

Bag filter filter knowledge

It is essential ventilation and air conditioning system is the main force of the air filter. Made of bags is mainly to meet the large amount of wind, low resistance requirements. The proper use of the bag filter is to install a prefilter at the front of the bag filter, typically using a disposable paper […]

Filtering operation

1. Constant pressure filtration In this case, Filtration is carried out at a constant pressure differential, called constant pressure filtration. Constant pressure filtration is the most commonly used filtration, filtration process, with the cake layer of the continuous thickening, resistance increases, due to pressure difference, the filtration rate will gradually decrease. In this case, 2. […]

Filtration speed

1. Filtration rate and filtration rate per unit of time through the unit filter area filtrate volume called filtration rate, namely: u = V / Atm3 / m2 where: A – filter area, m2;? T – filtration time, ? V – the volume of filtrate flowing out in time t, m3 the volume of filtrate […]

Filter media and filter aid

1. Filter medium? The main role of filter media is to support the filter cake, must have a porous structure, sufficient mechanical strength and flow resistance as small as possible, corrosion resistance. In this case, Commonly used filter media are of the following types: In this case, ① fabric media, such as industrial filter cloth, […]