Sorghum Straw Fired Grate Generate Electricity Boiler for Power Station

The Business Scope Includes

Yellow Straw Feeding System In Front Of The Furnace
1.The feeding system of the silo in front of the furnace has a high degree of automation, easy use and good reliability. The feeding system is equipped with fire-proof, explosion-proof, anti-spontaneous, anti-blocking systems, and is equipped with a fire-fighting water device, which has high safety.
2.The feeding system mainly includes: Fuel hopper, screw reclaimer, blanking tube, screw feeder, fire door, water cooling jacket.

Water-cooled Vibrating Grate
 Main technical features and details:
1.The vibrating grate is mainly divided into several parts: driving device, supporting vibration transmission structure, flat spring assembly, sealing structure and primary air bucket.
2.The grate membrane wall is connected to the boiler water wall through a flexible tube, and the boiler drain wall is used as the evaporation heating surface. Compared with the furnace temperature, the water temperature of the grate tube is relatively low, and the primary air is sent into the furnace through the holes in the water wall fins. , to further reduce the temperature of the grate surface. Therefore, coking on the grate surface is avoided.
3.Considering the high moisture content of the biomass fuel, the primary air adopts a higher temperature, which is very beneficial to the drying, preheating and ignition of the fuel entering the furnace, and can effectively improve the combustion effect.
4.There is a reasonable inclination angle on the grate surface toward the slag drop port, which can not only ensure sufficient fuel residence time on the grate surface, but also smoothly discharge the burned ash and slag.
5.The fuel and ash entering the furnace will form an airtight coating on the grate surface, and the primary air cannot penetrate. In order to disturb and move the fuel and ash, the grate drive device generates periodic vibration through a rotating eccentric shaft, and the support structure transmits the vibration to the furnace drain cold wall to make the material flip and move. The duration and interval of vibration need to be adjusted according to the specific conditions of the boiler load and fuel.
6.The bottom of the grate is equipped with a primary air hopper, from which the primary air enters the air chambers with separate and independent combustion areas, and then enters the furnace through the holes in the fins of the furnace drain cold wall. The bottom of the wind bucket is designed with an ash unloading door.