Heat Resistant Fire Grate Bars Flake Type Passive Grate Bar For Washing Industry

Heat Resistant Fire Grate Bars Flake Type Passive Grate Bar For Washing Industry

High silicon heat resistant reciprocating furnace row

It consists of a movable grate piece and a fixed grate piece arranged in phase.

1. There are various types of grate pieces, but the widely used ones are mechanically driven stepped inclined row furnaces.

2. The grate piece is made of cast iron.

3. Its combustion condition is similar to that of chain furnace. It can also adopt measures such as sectional air supply, brick arch and secondary air to improve combustion conditions.

4. Because of the good fire-breathing performance, it can burn coal with strong coking property and inferior coal with high moisture and high ash. The effect of smoke is better. When the structure design and operation are reasonable, the chimney basically does not emit black smoke. However, due to the poor cooling conditions of the slab. Not suitable for burning anthracite with low volatile matter and high carbon content.

Flake type grate bar

1.Vibrating

There is a small inclination between the grate surface and the horizontal plane, and the grate piece generates periodic vibration by the action of the motor and the eccentric wheel. When vibrating, the fuel layer continuously moves toward the rear of the furnace, so that the burnt ash falls into the ash pit at the end of the grate. This grate is characterized by a simple structure.

2. Feeding bottom

A trough-shaped grate with a screw rod at the bottom of the trough, leading to the coal hopper outside the furnace. The coal is sent from the lower part of the coal hopper to the coal tank through the auger, and enters the high temperature zone from bottom to top. When the ash exceeds the accumulation angle, it is discharged to both sides by gravity. The grate structure is simple, but has certain requirements on the particle size and humidity of the coal, and is generally only applicable to small industrial boilers having an evaporation amount of less than 1 ton/hr.

3. Reciprocating grate

It consists of a set of fixed grate pieces and a set of reciprocating movable grate pieces, which are divided into two types: stepped and horizontal. The reciprocating motion of the movable grate plate gradually pushes the coal seam to the rear combustion, so the grate is more adaptable to the coal species.