SU1322001A1 - Combustion apparatus - Google Patents

Abstract

The invention relates to energy and can be used in thermal power plants when burning solid fuels. The purpose of the invention is to increase efficiency by reducing underburning and nitrogen oxides in combustion products. The protrusions of the faces of the combustion chamber 1 (CC) are made with vertical channels 3, the lower end and the recirculation ports 14 are connected with the COP 1, and the upper ends - with the cooling chamber 11. The burners 5 and windows 14 are placed on the same level with the upper bypass windows 9 of the afterburner chamber 6. Below 7, chamber 6 communicates with a cone-shaped hearth 4 of CS 1. Along the perimeter of the lower base of the hearth 4, an air nozzle 16 is placed with an upward slope, made in the form of an annular slot. As a result, the entry of unburned fuel into the slag is completely eliminated, and by organizing the two-stage combustion and removal of volatile substances formed in the first stage, an effective reduction of nitrogen oxides in the flue gases is achieved in the cooling chamber 11. 2 Il. 5 0) with GcheE GcheE

Description

The invention relates to the burning of fuel and can be used on thermal power plants.

The purpose of the invention is the new view of the efficiency of reducing the incineration of nitrogen and oxides of nitrogen in combustion products.

FIG. 1 shows a thin device, a longitudinal section; in fig. 2 shows section A-A in FIG. one.

The thinner device contains a vertical tetrahedral combustion chamber 1 with protrusions 2 on its 1 run x 3 and a cone-shaped node 4, equipped with a tangentially located incandescent torch 5, a vertical tetrahedral post-6 combustion chamber with a cone-shaped 7, inserted into the combustion chamber 1 with a turn relative to at an angle of 10–30 ° with the formation of 2 faces 3 of the burner chamber 1 with vertical slotted clamps 8. The afterburner 6 communicates with the combustion chamber 1 by means of the upper 9 and lower 10 bypass windows located in the pinch zones 8 and with the cooling chamber 11 through the gas outlet window 12. The projections 2 faces 3 of the combustion chamber 1 are made with vertical channels 13, divided lower ends and recirculation windows 14 with the combustion chamber, and the upper ends with gas ducts 15 - with cooling chamber 11. The burners 5 and recirculated pion windows 14 are placed flush with the top 10 windows 9. The floor, 7 afterburner chambers communicate with the bottom 4 of the combustion chamber 1. Along the perimeter of the lower base of the hearth 4 of the combustion chamber 1 is placed with an upward slope air nozzle 16, made in the form of an annular gap. A slag-receiving device 17 is connected to the lower base of the bottom 4. The walls of the chambers 1, 6 and 11 can be made in the form of gas-tight screens.

The burner works as follows.

In chamber 1 burned through the burners 5, coal dust or crushed coal is fed by recirculation gases with an air excess factor of less than one. Through the upper non-outlet openings 9 and recirculation openings 14 to the flare, the heated combustion products from the afterburning chamber 6 and the hot gases from the channels 13, which increase the temperature of the flare in the combustion chamber 1, are ejected to the torch. . In addition, hot 1 ases and fuel particles from the previous burner 5 are sucked to the torch root.

Thus, in the volume of the combustion chamber .1 the horizontal horizontal circulation of the gas-oil smelter is carried out. The fuel passed through the stage of heat treatment and gasification due to the heat of the ejected gases and heat, B1z; dividing some part of the heat, in the pressurized zone (in the expanding part of the combustion chamber 1) goes down and slides down into the lower iodine 4. In chamber 1 Combustion of tonor is a significant part of low-calorie and ballast volatile substances, as well as nitrogen in the form of free N2 and ammonia. The resulting volatile substances are withdrawn from the combustion chamber 1 of the channel 13, located in the projections 2, in kammer 11 of the cooling, where the burning of the combustible part of the volatile substances occurs at relatively low temperatures, excluding the formation of oxides

5 nitrogen. The semi-coke formed in the combustion chamber 1 is picked up by air streams from the nozzles 16 and is fed into the chamber 6 doji. Through the lower bypass windows 10, hot gasses and semi-coke particles from the combustion chamber 1 are sucked in, which provide the best ignition of the torch in pot 6 of afterburning. The direction of the air nozzles 16, on) allelic) to the slopes of the hearth 7 of the post-combustion chamber 6, ensures a good filling of the flare. Hume kaery 6 dozhigani

5 and does not prevent casting (the squeegee in the combustion chamber 1. The afterburner chamber 6 works as an aerofontan firebox. Particles of unburned fuel Ous1 Ayu1C along its edges and being picked up again with jets of air from the nozzles 16 until

0 C1 ort. Large slag particles fall into the H1 glass-receiving device 17.

Thus, in the furnace device, the non-burning of the non-combustible into the slag is completely eliminated and the effective reduction of oxides of flue gas in the furnace

5 gases. Last but not least, it is provided by organizing a two-stage liquefaction fuel and removal of volatile substances formed in the first stage into the cooling chamber. Burning char in chamber 6 afterburning

0 allows to integrate the combustion process, ensure its stability, regardless of the quality of the original coal and C1, to cause pollution of the chagrev surfaces with ash deposits. At the same time, there is no need for home or 1-minute

5 to illuminate the torch when the quality of the original top deteriorates, 1ive.

Claims (1)

Invention Formula Q A thinner device, containing a vertical tetrahedral combustion chamber with vents on its facets and a node equipped with tangentially located burners, a vertical tetrahedral afterburning chamber with a horse with a syringe node, entered into it as a turn with a turn in relation to it at an angle of 10–30 ° C, with vertical protrusion of the combustion chamber with protrusions of the edges of the combustion chamber and communicating with the latter through the upper and lower bypass windows located in the compression zones, the cooling chamber communicating by means of a gas outlet window with a afterburning chamber, and an air nozzle, characterized in that, in order to increase efficiency by reducing underburning and nitrogen oxides in combustion products, under shaft channels communicated by the upper and lower ends, respectively, with the cooling chamber and the combustion chamber, n with the recirculation windows placed in the same way as the burners, flush with the upper bypass windows of the afterburner chamber, under which is communicated with the hearth of the combustion chamber, and The seat is made in the form of an annular gap, the combustion chambers are made cone-shaped along the perimeter of the bottom base of the hearth. igm ictgtl / pc. rr gp nryy pmplneny g of the venting-combustion chambers with a slope upwards. Nymi, the protrusions of its faces are made with a verti shaft channels communicated by the upper and lower ends, respectively, with the cooling chamber and the combustion chamber, n with the recirculation windows placed in the same way as the burners, flush with the upper bypass windows of the afterburner chamber, under which is communicated with the hearth of the combustion chamber, and Sonlo made in the form of an annular gap, placed five eight  / J X 1b Figg