The large grate is a mechanized layer burning equipment, which is used for the chain grate boiler with the evaporation amount of 0.5 to 30t/h, and can also be used in a variety of special heating and drying equipment. It is suitable for burning bituminous coal, lignite and peat. Specially designed, it can also be used as a combustion equipment with bagasse, firewood and rice husk as fuel.

Technical features:

The main components of large grate stoker are the active grate slice, the driven grate slice and the round steel long pin that runs through the width of the grate plate. The annular chain formed by the active grate slice at the running time is engaged with the active sprocket on the front axle. The chain between the active plates is formed by parallel connection of the driven grate slice (large piece). A number of separate air chambers with separate sides are arranged longitudinally along the grate, and the primary air entering the air chamber reduces speed due to diffusion, and can uniformly fill the air chamber. The intake volume of each air chamber can be regulated by a wind regulating device. The furnace is furnished with ash setting device in the air chamber. At the bottom of the wind chamber, a fixed falling ash floor with a ash outlet is arranged, and a movable ash gate connected to the pull rod normally closures and closures the ash outlet. To push and pull the handle of the ash door regularly, the dust in the air chamber falls from the falling ash to the furnace chain below, and is taken from the furnace chain to the ash bucket or the grill door at the front of the grate. This furnace has a simple structure, small metal consumption, large ventilation cross section ratio (usually about 10%), weak slag clearance and light coal leakage, easy to replace the grate plate, easy to maintain and maintenance, and its structure type can be designed to be side air or rear air, single wall board or windbox structure according to the requirements of the user's specific order. High box or short box structure and other specific structural types.

Technical parameters of large block grates can also be made according to user requirements.