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Analysis of the causes of fire in the use of boiler dust removal equipment

Bag filter is the main industrial coal-fired boilers and dust removal equipment, well-known bag filter dust bag is the core component, through years of research on coal-fired industrial boiler industry dust bag was found to be the most vulnerable parts of the dust. Due to the damage caused by the dust bag, the user has caused a large loss and seriously affected the work and economic benefits. The following Cascade environmental protection equipment mainly analyzes several reasons that cause damage to the dust bag.

1. Bag filter does not increase cooling and bypass measures. The main power source for industrial coal-fired boilers is coal. Because coal will evaporate a large amount of heat during combustion, the temperature can reach 300 °C. The current operation of high-temperature dust bag The temperature is 230° and 280°. If the user does not install cooling and bypass measures before the bag dust removal equipment, the induced draft fan will suck the high temperature flue gas burned by the boiler into the dust removal equipment, causing the dust bag to burn.

2. The selection of dust bag is wrong. Some owners will only pay attention to the price when selecting the filter material, but do not have a deep understanding of the performance of the bag. Only the investment of the moment is reduced and the material with high cost performance is selected. The dust-removing bag of the coal-fired boiler is a PPS high-temperature dust-removing cloth bag, and its bag has better temperature resistance and sulfur resistance than other bags.

3. The bag dust removal equipment is not equipped with a temperature detecting device (thermocouple). The temperature detecting device is an important component for protecting the dust removing device. It can automatically open the bypass when the temperature is too high and simultaneously open the cold air valve to cool down to ensure the temperature control. The high-temperature dust-removing cloth bag can withstand the range, so that the dust-removing cloth bag will not burn.

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