SU6498A1 - Dust Fuel Burner - Google Patents

Description

CUTTERS for burning pulverized fuel.

To patent A, A. Shershnev, dated December 10, 1926 (for Article by appointment. No. 12902).

A patent was issued on September 29, 1928. The patent is valid for 15 years from September 29, 1928.

In order to speed up the process: burning coal dust II it is necessary that the furnace satisfies the conditions for the best mixing of coal dust with air and that the temperature can be exhausted near the burner.

The existing toiki do not quite satisfy these conditions, so. as the processes are not intensive enough ..

In a conventional American-type firebox, with the vertical direction of the flame from top to bottom, the mixing of air and coal dust is achieved by introducing a mixture of powdered fuel and primary air into the furnace through a burner in the form of a thin stream washed by the secondary air continuously flowing into the furnace.

The start of the torch is ignited by emitting the end of the torch rising into the boiler.

In Toikas K (and (| dez (11 × 1 type ignition and air mixing), a vortex is produced and the tangential gas is introduced into the furnace of air and dust. In these furnaces, the dust is thrown to the walls of the furnace, usually with liquid slag. 1 sticks to it, do not accept yes, one's fate in burning.

We offer firebox for szhi) ani dusty top.shva. Fig. 1 is a vertical sectional view of the drawing; a pre-furnace 1, into which a mixture of coal dust and primary air enters through nozzle I, and through the slit-like nozzles 3 located in the side walls, the secondary air compressed in compressor 4 is periodically supplied. Due to the stepwise arrangement of the input of secondary air coming from one or the other, the speed, pressure and direction of the jets ((fluctuate periodically, the best mixing and lengthening of the path of the dust particle moving in a zigzag manner and heated at the same time by the rays of the walls of the furnace 1 is obtained .

Jl red mot patent.

A combustion chamber for pulverized fuel supplied in a vertical direction from top to bottom, characterized using chamber 1 (pre-furnace) for introduction into it in the usual way through a mixture of 2 fuel with primary air, in which chamber slit-like husks 3 delivering secondary air are located in its side walls are staged in two series, connected respectively to one and the other of the sides of the piston compressor 4, in order to periodically, through one side and the other, blow and communicate to the fuel jet zigzagos form before entering it into the furnace itself.