SU63392A1 - Charcoal firebox - Google Patents

Description

The objects of the present invention are a pulverized firebox with a sectioned dowater of the air mixture.

The firebox differs from the known furnaces of this type in that the channels for supplying the mixtures to the burners are made in the form of vertical chambers open to the furnace. To cover these chambers with air curtains, they are separated from one another by boxes with longitudinal slots for air release.

The drawing shows: a firebox according to the invention, and in FIG. 1 shows a plan of the furnace, and FIG. 2 is a section along I - I of FIG. one.

In the front wall of the firebox with dry granulation of ash and a cold funnel, vertical, open to the fire chamber, chambers 1 are arranged. The inner surfaces of these chambers are formed from pipes of the front screen, and the pipes are covered with Bailey tiles. At the same time, the possibility of arranging front-facing chambers 1 completely lined along screen tubes or without shield tubes is not excluded. Hai drawing shows topkl with cameras 1 of screen tubes with Bailey tiles.

Between chambers 1 air ducts 4 dd for supplying hot air are placed along the motion of the air mixture in the frontier chambers. Air is supplied along the entire height of chambers 1 from slots 5, in order to cover chambers 1 with an air curtain. The number of front chambers is determined by the number of burners. The aerosol is fed to the front chambers through the nozzles 2 vertically upwards. Ejector type burners 3 are mounted above the front chambers in the roof. In the furnace, the mixture is ejected. The secondary air is supplied through the nozzles of the ejector burners 3. The organization of the torches is i-shaped. The main combustion of fuel occurs in the combustion chamber 6.

Aero mix, a passage in front-facing chambers, a path of about 4-7 meters, is significantly and very efficiently heated due to the emission of flares (radiation), and the heat of hot screen walls. The permeability of the mixture is adjusted to the ignition temperature of carbon. Due to the fact that part of the dust enters chamber 6 through openings along the course of the air mixture, coitrate with the oncoming air flow from the slots 5,

over the entire height of chambers 1, there are observed as if burning vertical p-CJs. These burning along with the main flares intensify the process of heating the slurry and stabilize the process of ignition of the spabo combustion of the reaction fuels.

This furnace gives you the opportunity to burn fuel with more grinding. These features make it possible to expect effective burning of coal with a mark of minimal mechanical underburning. In addition to burning fuel with a low volatile yield, there is the possibility of efficient combustion and

all other fuels. The proposed organization of the combustion process can save its resistance to the discharge path of the pie-preparation system.

Subject invention

A pulverized coal furnace with a sectioned aerofluid mix, characterized in that the channels for supplying the mixture to the burners 3 are made of vertical chambers 1 open to the furnace, separated from each other by ducts 4 with longitudinal slots for air release, in order to cover the air curtains I of the air curtains .