(1) Adjust the vibration frequency and period of the biomass boiler (vibration time and stop time)
The vibration frequency of the grate is generally not adjusted with the change of the load. The good vibration frequency is determined by observing the thickness of the ash deposit at the ash guard of the low-end grate. When the particle size, moisture and load of the fuel change, only the vibration time and stop time are adjusted, and the vibration frequency is generally not adjusted.

The frequency of the grate should be determined by the following two factors: one is the thickness of the ash deposit at the ash baffle of the low-end grate, which should be maintained at 5-10cm; the other is that the furnace cannot be made at a specific vibration frequency The negative pressure changes drastically; the third is to detect the carbon content of the ash from the No. 1 slag conveyor. The normal carbon content should be 5-10%. (In the enkoping power plant, under normal circumstances, the carbon content of fly ash is 1 to 2%; the carbon content of ash slag is 5 to 10%.). According to the adjustment test, the frequency of the vibrating grate should be 40～45 Hz.

The vibration time of the grate determines the walking speed of the fuel particles on the grate (or the stroke of the fuel on the grate in each vibration period). The longer the vibration time, the stronger the ability to destroy the coke and slag, but the turning inside the material layer The performance is poor, and the walking speed is accelerated; the stop time of the grate determines the residence time of the fuel particles on the grate in large cases.