How to determine the filtration effect and purification efficiency of dust collector?

2023-10-26 21:25:49

Dust Collector is a commonly used dust removal equipment in industrial production processes, whose main function is to capture and purify particulate matter and dust in exhaust gas through filter bags. In order to determine the filtration effect and purification efficiency of dust collector, we can evaluate and analyze them from the following aspects.

1、 Evaluation of filtering effect

The filtration effect refers to the capture and filtration effect of dust collector on particulate matter and dust in exhaust gas. The evaluation of filtering effectiveness can be measured using the following indicators:

1. Particle capture efficiency: To measure the capture rate of particulate matter and dust in bag filters, a particulate matter collector can be used to sample particulate matter in exhaust gas and analyze particle size distribution and filtration efficiency.

2. Filter material resistance: Measure the resistance of the filter material during the filtration process, and evaluate the cleanliness and blockage of the filter material by monitoring the pressure difference upstream and downstream of the filter material. In general, the lower the resistance of the filter material, the better the filtering effect of the dust collector.

3. Dust emission concentration: Measure the concentration of dust in the exhaust gas at the outlet of the dust collector, usually using a dust concentration detector or particle sampler for monitoring. The lower the dust emission concentration, the better the filtering effect of the dust collector.

2、 Purification efficiency evaluation

Purification efficiency refers to the removal effect of dust collector on harmful substances in exhaust gas. The evaluation of purification efficiency can be analyzed from the following aspects:

1. Capture efficiency: Measure the capture rate of harmful substances in exhaust gas by dust collector. The concentration changes of harmful components in the exhaust gas can be used to evaluate the removal effect of dust collector on harmful substances.

2. Exhaust gas emission concentration: To measure the concentration of harmful substances in the exhaust gas emitted by dust collector, corresponding gas analyzers or online monitoring systems can be used for monitoring. The lower the concentration of exhaust emissions, the higher the purification efficiency of the dust collector.

3. Dischargeable substances: Analyze the composition of substances in the exhaust gas emitted by the dust collector, compare relevant emission standards, and evaluate the removal effect of harmful substances by the dust collector.

3、 Equipment operation parameter evaluation

In addition to the above indicators, the following equipment operating parameters can also be considered to evaluate the filtration effect and purification efficiency of dust collector:

1. Filtering speed: refers to the filtering wind speed per unit area. The higher the filtering speed, the greater the processing capacity per unit area. However, excessive filtering speed may affect the filtering effect.

2. Compressed air consumption: Determine the operating cost and energy consumption of the equipment. Generally speaking, the lower the compressed air consumption, the higher the operating efficiency of the equipment.

3. Operating stability: Evaluate the stability and reliability of dust collector during long-term continuous operation.

4. Cleaning effect: Observe the cleaning effect of the dust collector, including cleaning time, cleaning cycle, etc. A dust collector with good dust removal effect can maintain a low filtration resistance and extend the service life of the filter material.