Company name: nanyang star environmental protection equipment co. LTD
E-mail: 616330040 @qq.com
Address: longsheng industrial park, wolong district, nanyang city
With the development of science and technology, the wet electrostatic precipitator used to appear frequently in various manufacturers, and his dust removal consequences are also self-evident. But, have a lot of manufacturer reaction the effect of duster is not high. So, what are the killers in front of the wet electrostatic precipitator that affect its efficiency?
The concentration of dust in the gas
The concentration of dust is too high, the dust hinders the ion activity, the corona current is low, when important, it is zero, presenting corona infarction, the result of dust removal is improved sharply.
There are two kinds of charge in the electrostatic precipitator, one is the charge of ions, the other is the charge of charged dust particles. The activity rate of ions is higher, about 60~100m/s, while that of charged dust particles is lower, usually at 60cm/s as follows. Therefore, when the dust gas is in the dust precipitator, the charge of unit time is less than that of washing the air at the end of the dust, that is, the corona current at this time is less. If the high dust concentration of the gas, electric field suspended many small dust particles, worries about electrical precipitator halo current down sharply, when major can be close to zero, this kind of state is called the corona indicates closed.
In order to prevent the formation of corona indicates closed, disposal of high dust concentration of gas, have need to adopt the pace of progress such as voltage, choose discharge severe corona polar, additional purification equipment and so on. When the dust concentration of the gas is more than 30g/m3, it is necessary to set up pre-purification equipment.
2. Airflow rate
With the increase of the airflow rate, the dust removal efficiency is low, the reason is that the wind speed increases, the dust in the dust in the dust precipitator time is shortened, the opportunity to charge electricity is low. At the same time, wind speed increases the secondary dust volume will also increase.
The large and small wind speed of the electric field has a great influence on the dust removal efficiency. If the wind speed is too high, it is easy to generate secondary dust extraction, which makes the dust removal efficiency low. But wind speed is too low, the volume of electric precipitator is big, investment also should increase. According to the previous experience, the best electric field wind speed should not span 1.5-2.0m /s, dust removal efficiency needs high dust precipitator should not span 1.0-1.5m /s.