DE1451460A1 - Combustion device for one-room tower-like gas or wind heaters - Google Patents

Description

Food, deft. 22nd August 1963 If 394-6 / 1 'Re./H.

U5H60 -

Heinrich Koppere Limited Liability Company, Basen. Moltkeatraße 29

Incinerator for single room tower-like gas or wind heaters

The invention relates to a combustion device

■ j for one-room tower-like gas or wind heater (Cowper) with ™ a combustion device arranged at the bottom of the combustion shaft, to which the fuel gas is fed through nozzles arranged around the circumference of the shaft.

A combustion device for a Cowper is known, in which the one introduced into the combustion shaft from below, preferably Pre-heated combustion air stream below the fuel gas nozzles fills the entire cross-section of the shaft and crosses the part of the combustion shaft through which air flows, preferably from channels supported by arch bridges, the fuel gas nozzles or slots distributed within the combustion shaft cross-section Food.

In this known combustion device, the mixing and combustion of the combustion gases conducted from the shaft wall to the Sohacht- ■itte with the vertically rising air takes place only incompletely. The gas must be under high pressure against the air

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electricity must be introduced in order to get to the middle at all and not to rise more or less incompletely in the area of the shaft wall and in partially unburned strands and to be burned in places like an engraving. A However, complete burn-out above the bottom of the firing shaft is necessary to prevent stick-like burns in the compartment in the. Shaft dome and destruction of the masonry too avoid.

It is also a combustion device for tower-type gas heaters known from a series of perpendicular and parallel extending over the entire shaft cross-section fire-resistant walls and every second between these parallel walls remaining free, upwardly open intermediate walls are connected to the air supply, the remaining spaces with the heating gas supply.

Although the known combustion device ensures practically uniform combustion through the combustion agent distributed over the cross-section of the pan, the structure is complicated and expensive due to the two half-sided vault-like partial spaces, or the interlocking slit-shaped spaces above.

The heating of wind heaters for the supply of hot wind to the blast furnace is carried out with the resulting low calorific value

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Furnace gas. The often strongly fluctuating calorific value of the furnace gas is not sufficient to meet the heat demand for today more and more demanded the high temperature of the blast furnace wind to cover the purpose of saving coke in the blast furnace process. These The requirement is due to the high level of preheating of the combustion air and / or the top gas with the furnace gas Fulfills. Purely this high preheating will be costly additional facilities needed.

The object of the invention is now to achieve the required high temperature of the Cowper grating with the available Blast furnace gas through the direct additional supply of fuel with a higher calorific value without preheating the heating medium with heat from outside sources.

This object is achieved according to the invention in that lean gas, high-gas and air nozzles are arranged alternately distributed with one another on the circumference of the combustion shaft. Thereby * a uniform, intimate mixing of the combustion agents directly above the combustion shaft bottom and a faster combustion without any local overheating is achieved. Furthermore, it is not an expensive mixing device for enriching the lean gas with strong gas. An aeoleh * association is also in the case of tirw «itäüfti of the cold, in the warefci condition of the blast furnace

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incoming gas due to the risk of decomposition of the strong gas not easily possible «,

OF INVENTION & are ungsgemäß further the Starkg & sdUsen "nt © RHal" b represents Sehwachgaedüsen the Schwachga @ -Luftdüs © areihe ₉ are arranged so that in case of leakage of the masonry 'rich gas indistinguishable immediacy bar in the air ducts enter wiä by Stichflasmenbildung the masonry destroy can.

by superimposed üaaiitt @ lbar with the Sefeaelitwand related notes

According to the invention, the © 8ehw & ah |

the upper air "and the lower Starkgasver'toilleitung so DAFL with leaks a @ s masonry no © to leading association γοη Starkgs® and air in the ai © Mauerwerkakanältn jpfolgsn karin. ^

ifeeh another feature ö @ r Irfinäroag s ± n & die

files® Weis® meet see them. IMistastraSiiaii ^ © gelfSsmig, ®o si © iaaig vortexed ν & τύΘη unfi & ^, m ¥ @ rte © iiiiiiiigagesii © efe

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of the invention can also be in the bottom of the firing shaft one or more fuel nozzles may be arranged, which in particular with additional heating with oil it is advantageous to use »these nozzles can be changed depending on the type of fuel to be burned will.

Another »feature of the invention is the vent for to arrange the hot wind to be drawn off in the wind season concentrically in the bottom of the Brennsohachtes. Has such an arrangement the advantage that the wind line is immediately afterwards without a bend below and at the level of the pipe line of the blast furnace wind nozzles this can be connected.

Finally, the subject matter of the invention is that each of the adjacent lean gas and air nozzles to form mixing nozzles. are united, as a result, there is an intimate mixing of the slow-burning eyesight at the exit point.

«
gases with the air, this concentrically swirling mixture then being supplied with the strong gas or atomized oil or air-oil vapor mixture supplied from below.

The invention is illustrated in the drawings, for example.

Pig. Fig. 1 is a schematic representation of a heating system. Fig. 2 is a vertical section through the lower part of the combustion shaft.

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Fig. 3 shows a horizontal one. Section along line III-III

of Fig. 2.
Fig. 4 shows a further embodiment of the Ferbrenneinrieiitung in the burning shaft in a partially vertical section.

Fig. 5 is a section of the Sehwaehgas-Luftdüsenmisch-'einrichtung in vertical section along line VV of

The Erhitis® device consists, as can be seen from Fig. 1, from a vertical with serving to absorb the heat Lattice work 2 provided Sehacht 1, whose dome 3 by a horizontal connection 4 with the dome 5 of a burning shaft connected is. The firing shaft 6 rests on a frame 7.

The heating of the heat safety lattice 2 takes place from Burning shaft 6 from by means of a combustion device arranged on the floor. The hot exhaust gases flow through the viewing shaft t from. the Erhitserkuppel J from down and be deducted at 8. The zuheizend® wind is fed to the Sehaoht 1 below at 8a in the wind period and, 5 © after the formation of the Beheisungs®inriehtung, either through the Bodea of the Brenneehaehtes β through line 9 or above the heating device deducted at 10.

In the embodiment shown in FIG. 2, the blast becomes hot from the Breaaschacht 6 above the combustion unit

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"deducted at tO. The incineration device arranged in the bottom 11 of the well consists of a concentric sieve annularly arranged nozzles 12, 13, the mouth of which is directed obliquely upwards such that the exiting Burning rays result in a cone denoted by 15, shown in dashed lines.

The nozzles 12 go from -horizontal radial channels 16 and the

f nozzles 13 from radial horizontal channels 17. The radial channels 16 are connected to an annular channel 18 and the radial channels to an annular channel 19. Both ring channels 18, 19 are connected in a gas-tight manner to the sheet metal jacket 20 surrounding the Brennechacht masonry 21. The ring channel 18 is used to supply lean gas and is connected to a supply line 23 through the intermediary of a shut-off element 22, and the ring line 19 is connected to a combustion air duct with the interposition of a shut-off element 24. The mouths 14 of the nozzles 12, 13 are designed as mixture nozzles, as can be seen from Hg. 5. The ends of the walls 26 separating the nozzles 12, 13 end below the annular sloping base 27.

In the bottom of the Brennechachtes 6 is a vertical one concentrically Passage 29 is arranged, which is closed off by a pipe section 30 at the bottom is, the bottom 31 of which is penetrated by a nozzle lance 32

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seist is * The nozzle 33 of the Diisenlaiase; is rom eia® ©.

provided with openings. Wrestles urgently .35 is ^ efeen. and.

Bern held »The Düpenlanze 52 is. after- \ ini; 3 &. "extractable" - it is wise, depending on the nature of the process. Staa? Kgas or oil. " exchanged .if the Roiirstüclc 30 eats with, a ^ .. pipeline -36. star Ziafüfenrng- "V« r "Brennuagsluft -.- connected -...,.;. ... .> .. _; . ; ·, ...: ■. ^

Preferably.-are those. Nozzles 12 ₉ ■ 13 .for .-. The Sehwacfegas-Iixft ^ m- _r drove a bit tangentially ... gericht © t ₉ bö daS-die k © g®lf ^ imig a§, eh _; , upstairs, righteous distillers rstralilen see la-very pigeon-fUimiges? . T @ r · wirbelung'vereinigen .. This Terwirbelnden "Medley nrlr4 konzentrisoh- dureh the 'nozzle 33, an air-Starkgaa- or.' Mixture -.zugeführt * so that, © i s intimately _©;... ¥ esiis0laui * g lsi "_k © na © a-. tr lach, rising stream, © rf © Igt and '.- © la © nsmittelbar © B® ~ rUhrung dar- S ^ haohtinnenwaad.-y aureh-die eatetehan

Bsi the execution area shown in "Mg .. '4- is used in the bottom of the. Brennschacht ©";, ^^ agÄördaete., Dterchliyeehisag. .37 sna A ~ b leiten-dts.im.S.ahaeht l.e' rhltstea Wisdts »Bsr HeiSwiüt wi.rö., through line-9 n & eh below ßlg © Ep.gfK mfi. gtlmgt.Äurek., - ■, which is at the height of the wind nozzles 'd-ea'alcht" shown tea. blast furnace® ', arrangediB' _.Ld ^ tung ^ | 9- ₇ la fien ^ Hochofea ^ .IÖte .Leitmif Jf.ist, .. dureh stm. Abßp.errvorri.ehtuag.,. 40 absehlieSiar *> _v: - - , ■> ., _; . ,:,.,

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The inward lines 17 »18 are arranged one above the other in the same way . gas-tight connected to the shell casing 20 as in the embodiment according to FIG. The rich-gas channels 42 and nozzles 43 are below the Sohwachgaskanäle, ao that in case of leakage of the masonry only one training Λ but can not be done by such strong gas with air, exchange of Schwachgas- and Stark gas. In this way, in the event of leaks, the formation of flashes caused by the combination of high-strength gas with air is avoided. "In this case, the ring line 25 feeds in so much air" that it is sufficient for the combustion of lean gas and high-strength gas. The lean gas-air mixture rising out of the mixing nozzles therefore has an excess of air through which the high-strength gas mixed in from below reaches the combustion after mixing, without it being able to show signs of flame-like flames.

Both in this embodiment and in the Pig embodiment. 2 So there was no direct strong gas or oil vapor mixture get to the Sahachtwand.

! »Oh brightening the sight gitier works 2 is introduced into this through the line 6a Kftltwind. The temperature of the heated wind falls to sue end from the wind period. Including an equal

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To maintain a moderate wind temperature, "let it be necessary to add a correspondingly decreasing amount of cold wind to the hot wind. "

This admixture is generally carried out by special mixing chambers, which is an intense mixture of cold and hot wind effect, or by simply blowing the cold wind into made the hot blast line. In the latter version must have a sufficiently long distance to meander stand.

The combustion device according to the invention enables the embodiment according to FIG. 4 a cold wind admixture in the Area of the burner without special mixing device. The combustion air ducts 17 are mixed with cold wind during the hot wind period applied. An intensive mixing of hot wind and cold wind takes place in the braking level and ensures that the burner through the flow of cold wind during does not reach extremely high temperatures during the hot wind period.

9 (0 98 04 / QB tS

Claims (7)

Essen, August 22, 1963 N 3946/1 - 11 - Claims ( 1. Combustion device for one-room tower-like gas or wind heaters (Cowper) with a combustion device arranged at the bottom of the combustion shaft, which feeds the fuel gas through ■ "■ ■ '■■■■■ -" · -' ι arranged distributed over the circumference of the shaft © Msen is, characterized »that lean gas, high gas and air nozzles are arranged alternately with one another. 2. Verbrennungeeinrichtung _t according to claim 1 characterized in that the rich gas nozzles (33 ,. 43) below the SeMwaehgas-Iiuftdüsenreihe (12, 13) are arranged. 3. Combustion device according to claim 1 or 2, characterized in that the supply channels (16, 17 »42) in the Schaehtmauer- \ werk are so below each other that swisefeea the air and the high-gas channel (17, 42) of the lean gas channel (18) . 4. Combustion device according to claim 1, 2 or 3, characterized in that that the nozzles (12, 13, 43} are directed obliquely upwards are· 0 9804/05 1 8 - ^ ^! ■ ' 22. 8. 63 U5U60 φ - 12 - 5. Combustion device according to one.or more of claims 1-4t, characterized in that concentrically in the bottom of the combustion shaft (6) one or more heavy gas or oil iron (33) are interchangeably arranged. 6. Yerbrennteinriehtung according to one or more of claims 1-4, characterized in that concentrically in the bottom of the firing shaft (6) the .At exhaust opening (37) is arranged for the heated wind. 7. Combustion device according to one or more of claims 1-6, characterized in that the lean gas and air nozzles (12, 13) are combined to form mixing nozzles (H) . 90980 4/0518