The discharge system is composed of several parts, including the silo, air chamber, air vent cloth, spray pipe and discharge pipe, spray pipe regulating device, air chamber air supply pipe, etc. The spray pipe regulating device can adjust the distance between the spray pipe and the discharge pipe, and there is a sealing device between the spray pipe and the silo. The breathable fabric divides the discharge system into two parts: the air chamber and the silo. The material in the silo forms a fluidized state under the action of gas, and the fluidized material is conveyed out of the material chamber of the discharge system through the spray pipe and the discharge pipe.

The discharge system utilizes the jet effect of air flow to carry ash particles to the ash silo. The energy of the discharge system during operation comes from two parts: one part is the kinetic energy of the fan, and the other part is the potential energy of the material column. The higher the material column, the greater the potential energy and pressure, and the larger the conveying capacity will be accordingly; conversely, it will be smaller. When the discharge system is operating normally, it maintains a certain material level height. If the discharge volume of the electrostatic precipitator increases within a short period of time while the discharge system is still working normally, the material level height will naturally rise. As the material level height increases, the material pressure increases, the potential energy increases, and the conveying capacity correspondingly increases until the system automatically reaches equilibrium. If the discharge volume of the electrostatic precipitator decreases within a short period of time while the discharge system is still working normally, the material level height will naturally decrease. As the material level height decreases, the potential energy of the material reduces, and the conveying capacity correspondingly decreases until the system automatically reaches equilibrium.

When the continuous conveying and discharging system is in operation and the bottom bin is about to be emptied (detected in parallel by three Weighing modules at the bottom of the bottom bin), the stepping motor drives the three-way ball valve to rotate a certain Angle, connecting the bottom bin and the middle bin, and the bottom bin will inflate the middle bin. When the pressure in the bottom chamber and the middle chamber is equal (detected by the electrical contact pressure gauge), the valve between the two chambers is opened under the action of the cylinder. The stored materials in the middle bin flow to the bottom bin to be filled (detected in parallel by three weighing modules at the bottom), and then under the action of the cylinder, the clock valve between the two bins closes. The stepping motor drives the three-way ball valve to rotate to another position, allowing the middle chamber to communicate with the atmosphere. At this point, the middle chamber will release air. When the pressure in the middle chamber drops to be equal to the external atmospheric pressure, the valve between the middle chamber and the top chamber is opened under the action of the cylinder, and the material flows from the top chamber into the middle chamber. After the middle bin is filled with materials (detected in parallel by three weighing modules on the top of the middle bin), the clock valve between the two bins closes under the action of the cylinder. Under the action of the pneumatic drive device, it moves from the side of the weighing module to the area under the scale of the silo, and is measured by the rapid weighing unit and transmitted to the weighing instrument. After obtaining the flow and quality information, the weighing instrument sends control signals to the valves and seed discharge devices in the warehouse. The material brush moves from the inside out of the scale platform. According to the control signals sent by the weighing unit, it can complete the measurement of the quality of a large amount of materials. At the same time, one cycle ends, and the above process is repeated thereafter to achieve continuous feeding.