|Industrial dust treatment equipment series|
|Welding fume exhaust gas treatment series|
|Grinding polishing dust removal equipment|
|Stand-alone dust collector|
|Spiral duct and accessories series|
A common feature of all dust removal equipment is that the smaller the density of the filler, the more difficult the separation and collection of dust particles, and the more serious the second fly of dust. Therefore, special measures should be taken in operation and equipment structure. When the particle size is larger than a few microns, electrostatic precipitator and bag precipitator should be selected. The specific selection can be based on the requirements such as the degree of dispersion, and the preliminary selection can refer to the common type and performance table of dust collectors. Then according to other conditions, the dust collector is introduced. Type and performance ... Dust concentration also has a great impact on the dust removal performance of the dust collector. The most obvious manifestations of this effect are gravity, inertia and centrifugal vacuum cleaners. Here are some key points for selecting dust removal equipment:
Several points for selecting dust removal equipment 1. In principle, dry dust removal equipment must be carried out at a temperature higher than the dew point of the dust-containing gas. In wet dust collectors, due to the evaporation of water and the condensation after discharge to the atmosphere, they should be treated at the lowest possible temperature. In the filter cartridge dust collector, the temperature of direct or indirect treatment of dust-containing gas should be lower than the heat-resistant temperature of the filter cloth. The operating temperature of glass fiber filter cloth is generally below 260 ° C. The other filter cloth is 80 ~ 200 ℃. Bag type dust collector is a dry type dust collector, which is suitable for collecting fine and dry non-fibrous dust. The filter bag is made of woven filter cloth or non-woven fabric, and the dust-containing gas is filtered by the filtering effect of the fiber fabric.
Several points for selecting dust removal equipment 2. The higher the dust concentration at the inlet, the higher the dust removal efficiency. However, this will increase the dust concentration at the outlet. Therefore, from the perspective of high dust removal efficiency, generally, the dust removal effect cannot be considered good. For wet type dust collectors such as Venturi scrubbers and jet scrubbers, the initial dust concentration is preferably less than 10g / m; the lower the dust concentration of the bag dust collector, the better the dust removal effect. At higher initial concentrations. Continuous ash removal can meet both environmental protection requirements and pressure loss and emission concentration.
Several points for selecting dust removal equipment 3. In a cyclone dust collector, dust adheres to the wall due to centrifugal force, which may cause clogging; dust attached to a bag dust collector can easily block the pores of the filter bag, and the dust collector is easily discharged. Dust has accumulated on the electrodes and the dust collector.
Select dust removal equipment Several points to prepare 4. The amount of gas to be processed is the determining factor in determining the size and type of the vacuum cleaner. For the amount of air, it is necessary to choose a dust collector that can handle the amount of air. The use of multiple dust collectors that process a small amount of gas in parallel is usually Uneconomical. Which type of dust collector is the most economical and the easiest to meet the environmental requirements of dust source control and dust emission under a small air volume.
Several points for selecting dust removal equipment 5. The fabric selection of the dust removal bag in the dust removal accessories should strive to be as efficient as possible, easy to remove dust, and durable. The choice of the dust bag is very important. It directly affects the dust removal effect of the dust collector. Dust bag The selection includes the following aspects: gas temperature, humidity and chemical composition, particle size, dust concentration, filtering wind speed, dust removal method and other factors.
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