SU55945A1 - Burning stove - Google Patents

Description

Until now, the operation of continuously operating furnaces is conducted either on solid fuel supplied to the inside of the furnaces through special gaps, while the fuel is in contact with the products to be fired, or the firing is carried out by generator gas produced in special gas-generating units having their own quality. dd

To produce the generator gas in the most; The kiln, the present invention proposes, inside the kiln's working space, under the openings for loading solid fuel, to install gas-shafts with channels underneath to force the air required for gasification.

The proposed device in the furnaces of internal gas generators creates the opportunity to increase the efficiency of the latter and the furnace, as well as to increase the productivity of the furnace.

At the same time, against the usual work on solid fuels, it is possible to minimize the amount of products exposed to ash from the fuel. This reduces the specific consumption of the fuel and makes it possible to use low-grade fuel.

In FIG. I depicts a vertical cross section of the furnace along the line AB in FIG. 2, FIG. 2 shows a horizontal section through a furnace along the line of the second harmonic line in FIG. one.

In channel calcining furnaces with a moving calcining zone (Hoffman furnaces, chamber furnaces, etc.), every 5–10 m are laid out from a kirnicha 2, 3 gas generator shields, which, with help 1, and channel 2, are connected to a non-movable fan, or through an annular burs around the furnace with a stationary high-pressure fan.

Lattice 3 gas generator bridges / made of bricks mounted on the edge with prozor between them.

The outlet of channel 2 and the grating 3 of each shaft / should be in the same vertical with arch roof 4 of the furnace. These openings 4 serve to throw fuel through special feed hoppers 5.

The operating mode of the furnace with internal gas generators is as follows. Once due to flue gases from the combustion chamber, the temperature is in one row;

pjuXT / rises to 700--800, a);;: there is a fuel intake of 1 azo generator; orne; e mine /. Burning first takes place as in a simple sense, and as the layer of fuel accumulates, the process of azification begins. Gas combustion in the furnace 1 comes by supplying secondary air chrs-z cooling chambers into the combustion chamber. Work in each row of mines is carried out until the products until the next row have received the maximum required firing temperature.

After this, the casting is stopped, the remaining fuel is burned to the end, and the fenders for the primary air supply are turned off. After the chilled chambers are gas-shafts / clean, they come from the slag and are repaired as necessary, or re-laid.

Previously, the invented u.

Burning furnace in which the burning process is conducted on generator gas, characterized in that, in order to obtain generator gas for conducting the burning process, gas generator shafts 2 with channels laid under them are installed inside the furnace working space under the holes 4 for loading solid fuel for, forced air required for gasification.

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