The boiler dust collector is a dust collector for boilers as its name suggests. Especially in the current national environmental protection departments to strictly control emissions, all boilers must be equipped with dust removal equipment, how to choose the appropriate dust removal equipment is a problem faced by some manufacturers .
Points to note when selecting a boiler dust collector:
1. Pay attention to the relevant standards and regulations when selecting a boiler dust collector. The concentration of dust in the exhaust should first understand the emission concentration of the local boiler soot and the dust concentration of the boiler exhaust, calculate the dust removal efficiency that the precipitator should have, and then select the type and number of the precipitator. Dedusting efficiency of dust collector: Dispersion of soot The fly ash of boiler exhaust is composed of dust particles of different sizes, and the particle size range of soot is generally 3 to 500 μm. The dust is usually grouped according to the corresponding diameter range, and the percentage of each group's weight to the total weight of the soot is called its dispersion.
2. The concentration of soot at the outlet of the boiler with different combustion modes and the adaptability of the dust collector to the load will affect the performance of the dust collector. After technical and economic comparison, low resistance, low equipment investment and low operating cost are selected. Dust collector.
3. The cyclone dust collector is used in the heating boiler room. For layered boilers such as reciprocating grate and chain grate, a single-stage cyclone is generally used. For room-burning boilers such as coal shovel furnaces, pulverized coal furnaces, and boiling furnaces. Generally, secondary dust removal is adopted; when dry cyclone dust removal can not reach the dust emission standard, wet dust removal can be adopted. For wet dust removal, the wastewater should be effectively treated to meet the discharge standards. Different types of dust collectors have different adaptability to the dispersion of dust particles .
4. Insulation and antifreeze measures should also be considered in cold areas. When using multiple parallel dust collectors, it should be considered that the parallel dust collectors have the same performance and should consider the pressure balance of the front and rear nozzles.
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