SU15943A1 - The form of execution described in the patent for c. swith No. 36036 mining furnace for burning fine bulk fuel in suspension - Google Patents

Description

Ag 14189 describes a mine shaft for burning fine, loose fuel in a weighted state, the shaft of which communicates with the throat of a chamber that is used for afterburning fuel residues and for scraping waste; Supplementary patent no. 15943 describes a device for changing the cross section of the said throat, which causes a change in the speed of the air stream, and consequently, of the combustion products.

In the present invention, in cases of burning in the described furnace, together with bulk fuel of pulverized fuel, a number of Voropk with mouths and afterburners under them are used, with adaptations for changing the cross-section of the necks and supplying additional air through the channel in the roof of the furnace.

The plaster shows a vertical section of the shaft furnace.

Fine bulk fuel, up to

- ten mm in diameter, such as: screening of coal, anthracite shtyb, seed, cloves, toxic, charcoal, and crushed coal, partially fed from bunker 1 with a pneumatic feeder 3 through the burner 3 to the combustion chamber 4. Other part The fuel from the bunker 1 flows through a special feeder into the mill 5, where it is crushed into fine dust measured by microns, and the passage through the fan (not specified in the drawing) and through the turbulent burner 6 enters the combustion space 4.

During normal operation of the furnace, large pieces of fuel fall down under their own weight into the funnels 7, having at the bottom of the neck 11 with turning / Parts to change its cross section, I; -: IS chamber for after-burning fuel in the slag, with rollers 13 for crushing and automatic slag removal. Through the side holes 15 enters the frame 13 air from the chambers 16, where he

supplied from the air economizer by a fan (not shown in the drawing).

Suspension of crucible particles of fuel, which are pumped into the tonk directly from the bunker, is achieved in the presence of air, by blowing air into the air through the neck 11 at the required speeds.

These particles, thrown up by air and stirred by the flow of toxic gases, are not fused into the funnels 8.9 and 10. The combustion of iyliid fuel, occurring in n1, increases its temperature with its usual chickpea 4, which creates favorable conditions for a stable combustion process coarse fuel particles in a forced suspended state. Heavy slag particles fall through the necks 11 into chamber 12. Here the fuel burns in the slag. Channel 17 is arranged at the top of the firebox.

for supplying secondary air to the furnace, serving it, to improve the ejection of fuel particles from the gas stream into the funnels.

Subject patent.

1. The form of execution of the shaft furnace described in Patent No. 14189 for burning fine bulk fuel in suspension, in case of burning in it together with loose fuel of pulverized fuel, is different, and with the use of a number of craters 7, 8, 9, 10 with mouths 11 and the afterburning chambers 12 under them, as well as with turning parts neschennymi in the neck, described in the patent UN 15943 to the patent M 14189.

2. Application described in n. 1 furnace additional air inlet through the channel 17 to the arch of the furnace. N additional patent A. V. V. Prokhorov №

A. Shershneva and 15943