1. Discharge concentration When the discharge port is a single pipe, take the measured exhaust concentration of the exhaust pipe as the discharge concentration. When there are multiple pipes in front of the discharge port, calculate the discharge concentration.
Dust removal efficiency is based on the ability of the dust collector to
collect dust to evaluate the performance of the dust collector
. In the "Integrated Emission Standard for Air Pollutants" (GB6297), it is expressed by the amount of dust that is not captured (that is, the quality of dust discharged in 1 hour) Dust removal effect. The percentage of the amount of dust that is not captured in the amount of dust entering the dust collector is called the transmittance (also known as the transmittance or the pass rate). It can be seen that the dust removal efficiency and transmittance illustrate the same problem from different aspects, but in In some cases, especially for dust collectors, the use of transmittance can lead to a clearer concept. For example, there are two dust collectors used under the same conditions. The previous one has a dust removal efficiency of 99.9% and the two dust removal efficiency is 99.0%. From the comparison of the dust removal efficiency, the previous one is only 0-9 higher than the two. However, in terms of pass rate, the previous one was 0.1% and the second one was 1%, a difference of 10 times. This shows that the amount of dust discharged into the atmosphere from the two is 10 times more than the previous one. Therefore, from the perspective of environmental protection, it is more straightforward to use the transmittance to evaluate the performance of the dust collector
, and it is more practical to use the emission rate to indicate the dust removal effect.