SU109922A1 - Device for the periodic burning of fuel carried with slag and ash in the boilers of steam boilers - Google Patents

Description

The invention relates to the improvement of devices for burning off fuel brought with slag and ash in the furnaces of steam boilers equipped mainly with pneumatic-mechanical fuel sprays.

Existing devices of this kind, usually made in the form of afterburning „1 ny lattices with uncooled grate, located at the end of the furnaces, do not have a separate chamber for burning fuel from the slag, which leads, on the one hand, to rapid burning of the grate, and on the other hand, em conduct the burning process.

In the described device, these drawbacks are eliminated by the fact that the burning chamber is located under the grate and separates from the slag bunker for the burning time and also from the combustion chamber by a cooled gate, and the slag is burned out on a gate made in the form of a grate under which the necessary amount of air.

The drawing shows a longitudinal section of the device.

The device shown in the drawing consists of the Burning Mine}, located under the grate bunker of the furnace of the steam boiler and separated from it by the cooling valve 2. The slag is burned out on a gate made in the form of a grate and controlled by a hydraulic motor 4. Air required for combustion is supplied by a fan through pipe 5 to the space under the gate. The hot gases through channels 6 go to the furnace space of the boiler furnace.

Slag and ash after burning out at the opening of the gate 3 fall into the scraper channel 7 filled with water, and then, with the help of a scraper, they leave the boiler room outside. The ash and ash collected by the ash collector enter the bunker 8 through pipe 9 and further with the aid of the screw 10 or any other device is fed under the level

slag located on the gate - :. The shaft with the screw turns of the screw does not reach the end of the pipe in order to create a constant plug from the ash at the end of the screw that prevents air from entering the shaft / into the bunker 8. As can be seen from the description, the device works periodically as slag and ash are accumulated in the hoppers .

Subject invention

Claims (2)

1. A device for periodically burning out fuel carried with slag and ash in the furnaces of steam boilers, made in the form of a vertical shaft located under the slag bunker and serves, for her, the reception of slag emitted from the bunker when cleaning the grate, and the ash supplied from the ash bunker of the boiler by a screw or some other mechanism under the layer of slag dropped, characterized in that, in order to burn fuel more completely and improve the conditions of operation, the mine is equipped with a cooled gate it is from the bunker to the burning time, and is equipped with a gate, made in the form of a grate, under which the air necessary for burning the combustible residues is supplied to it. 2. In the device according to claim 1, the use of channels, connecting the upper part of the shaft with the furnace space of the furnace for the removal of hot gases into the gas ducts of the boiler.