Anti-slagging system for blending combustion of low-ash-fusion-point coal in large boiler

The invention discloses an anti-slagging system for blending combustion of low-ash-fusion-point coal of a large boiler. The anti-slagging system comprises a filter, a third motor and a discharging port, a first pipeline is connected to the filter, a collecting box is installed in the filter, a screen is arranged in the filter, a first belt wheel is installed below the screen, the top of the filter is provided with a second pipeline, the other end of the second pipeline is connected with a Roots blower, a third pipeline is installed on the Roots blower, the other end of the third pipeline is provided with a mixing bin, a stirring shaft is installed in the mixing bin, and a second motor is connected to the stirring shaft. According to the anti-slagging system for blending combustion of the low-ash-fusion-point coal in the large boiler, a second transmission belt is driven by a first motor to enable a second belt wheel to rotate, then the first belt wheel is driven by a first transmission belt to rotate, impurit