US1770285A - Gas-producing oven - Google Patents

Description

C. OTTO July 8, 1930.

GAS PRODUCING OVEN Filed March 5, 1929 3 Sheets-Sheet 1 Y ATTORNEY July 8, 1930. t c. OTTO c-As PRODUCING bvEN Filed Mar 1929 s Sheets-Sheet 2 INVENTOR CM cans. BY

ATTORNEY July 8, 1930. c, oTTo GAS PRODUCING OVEN s Sheets-Sheet .5

Filed March 5, 1929 Fig.5.

NTOR

ATTORNEY ual inlets to the flues of the strong CARL care, or ESSEN-RUHB,-G P

ens-rnonucrne ovniv Application filed March 5, 1929,

It has already been proposed, for the purpose of regulating the level of the points of union of gas and air in the heating fines of coke ovens, to adjustably arrange the individgas of each heating wall as to their vertical distances from the inlets, of the air or the air-weak gas mixture located at the bottom of the heating flue. is varied by putting nozzle tubes of different length on the stationary nozzle bricks of the strong gas feeding conduit.

The burner arrangement and gas supply for the heating dues of gas producing ovens forming the subject-matter of the present invention, constitutes a continuation in part of my prior application Serial No. 83,964 (Patent No. 1,748,1433), and relates to a particularly suitable and advantageous further developent of the heating arrangement by providi g in each heating flue a plurality of strong gas (rich gas, for example coke oven gas) in lets arranged at difierent levels above the air inlets located at the bottom of the heating flue, which strong gas inlets can be supplied selectively with gas from their respective ascension conduits. The possibility 1s afiorde'd hereby of displacing the greatest heating effect in each heating'fiue within the shortest time as desired either into upper or. lower see- I tions ofthe heating fines so that the oven can be adapted in a degree not obtained hitherto, to the difi'erent and varying requirements of heat of its indivdual portions. *The calorific value'of the fuel supplied to the heating wall portions located above each individual burner point between two reversals may also be varied, as by varying the composition of the gas-air mixture supplied between two reversals. it is possible, of this burner arrangement a multi-level heating that corresponds to the number of strong gas inlets existing in the individual heating flues. A heating of this character will be of a particular importance with the modern coke ovens having horizontal coking chambers and recently employed more and more, which chambers have a height of more than 4 meters. Every strong gas inlet of each heating flue may be set in communication with the lhe level of the strong gas inlets relate to the first, Figures 3 and a to to obtain by means Serial No. 844,412, and. in Germany November 25, 1925;

strong gas supply pipe by a special ascension conduit that selectively may be connected thereto by a controlling valve. Furthermore, all the ascension conduits leading to the strong gas inlets of equal level of a heating wall may be connected each with a special feeding pipe adapted to be selectively connected to the gas main trolling valve.

A further improvement and refinement of the above-explained idea of the invention may consist in the strong as inlets, provided in each heating flue, o difierent level above the floor of the latter having difi'erent levels :also relatively to the strong gas inlets of the neighboring heating tlues.

Furthermore, also the weak gas (for example, producer gas) inlets may have levels diflering in plurality of such'inlets of different level being pre erably provided in each heating fiue.

Besides, the change in feeding the individual strong gas inlets within each heating flue may be performed independently of the reversal andof the change, required therefor, in the gas 'supply to the heatin fiues themselves. This construction of t e hereinbe fore described gas supply is particularly well suited to be applied to'twin flue ovens.

Four embodiments of the invention are illustrated by way of exam le in the accompanying drawings, in whic Figures 1 and}? t e second, Figure 5 to the third, and Figure 6 to the fourth embodiment. In particular Figure 1 is a vertical longitudinal section through the oven battery on line 1-1 of Figure 2,

Figure 2 i's'a horizontal section on line 2-2 of Figure 1, seen from the top,

Figure 3 is a vertical longitudinal cross section through the oven batttery on line 3-3 of Figure 4,

Figure 4' is a horizontal cross section on line H of Figure 3, seen from thetop,

Figure 5 is avertical longitudinalsection through a heating wall, and I Figure 6 is likewise a vertical-longitudinal section through a heating wall.

i 1 '8' is a detail view ot the valve can by means of a contheindividual heating flues', a

the one hand, and "ascension conduits e on the other hand heheating fines c the bottoms of the fines being at the same level.

Two strong gas nozzle bricks d, e form the es inlets and are preferably arranged in one heating due and communicate through appurtenant ascension conduits d and (2 with a suitable strong gas feeding pipe. The combustion. air is supplied to each heating fine its bottom from the regeneretors f by connecting channels g. The supply of strong gas to the higher nozzle bricks (Z and to the lower ones e may be made by the appurtenant escension conduits d and e. The ascension conduits by means of a suitable supply pipe mey be connected to the strong gas resin 0 (see Figure 5). They may be selectively connected with the strong snpply pipe by moons of a controlling velve or the A modification I of this arrangement may consist in all nozzle ascension conduits a? on all bricks c with their bricks a7 with their mg connected each to it special supply pipe brencheol oil from the strong gas main, which brench pipes niny likewise be connected sel ctively to the said strong gos main by means of controlling vslve (see Figure 5). This modification eitords the advantage of the gee supply beingchsnged at once by a single motion of the vslve from the higher nozzle bricks to the lows? ones end vicev'erss, By the firstcnentioned arrangement it is possible for each heating due to he set to the higher or lower nozzle bricks independently oi the other The bricks a? and e be disposed either close to one nether in close connection o he y no separating wells a or they may he cos d as freely standdiiierent levels is ove Further? more m composed F tions y further e described ioyed else in if CGIH- ssh gas, in r snhdivided in l regenn hosting rogeneretor one recuperative ovens, as also with any End of subdlvision of the heating walls, such as into halves, gronys or twin fines. I

The second embodiment will now be described with reference to'Figures 3 end 4, wherein ports that correspond to the first embodiment,-are denoted by the same reference letters. v

Two strong gas inlets a3 and e, d 6 located at difierent levels above the bottoms it of the heating fines are arranged in the duo's of the hosting wells 6, 5 According to the invention the inlets fine c (Figure 4) ereals'o arranged at another level above the floor h of the line than the corresponding inlets d and c of the neighbouring heating fines 0 The same difierence of the level of the strong ges inlets exists also with the corresponding heating fines of neighbouring heating walls, as particularly to be seen from Figure 3. In this manner at chess board-like distribution of the strong gas inlets of equal level above the floor is obtained throughout the entire oven plant, end it is further obtained thereby that each oven chamber gets a four-level heating, whereby even with the greatest chamber height an absolutely uniform heating of the charge in vertical direc tion is secured.

While with pure strong gas heating all the regenerators 7" serve to preheat the combos tion air, which is supplied to the heating fines at their iioor it by the channels 9, in week gas hosting the moiety of the regeneretors is set to gee in. the usuel manner. The regeneretors serving to preheat the gee, end the channels connecting them with the heating fines are denotedhy f and g in Figure 3. In spite of the fact, that normally in week see hosting no rnnlti level heating is required due to the flame/being long in itself, it will be desirable to the height of the oven chamber having recently been extraordinerily increased, To this end two weak gas lets c" and k may he srrc in each heatfiue c, which have detcnsined diiierent oi -the tine, each the bott the respective rea g According to eh m ement of the gas inlets i zneeting fines 0' diff corres to b lets of other i be described with reference to Figures 5 ahd 6, parts corresponding to the first embodiment being denoted by the same reference letters.

Referring to heating fiues 0 are desi the third embodiment, the ed in pairs 0 s usual in twin flue heating, either the alter- 'nate flues c of a wallor the intermediate fines c are fed with gas. Of the strong gas inlets of each. flue c,'the higher inlets, d, are connected through the appurtenant ascension conduits d to a supply pipe m, whilst the lower inlets e through their ascension conduits e are connected to a supply pipe '11 In each flue c is likewise provided a hlgher and a lower inlet-o and p, respectively. All

inlets 0 are connected through ascension con-- duits 0 to a supply pipe and all inlets 17 through the ascension con uits p to a supply pipe 1'. s and 8 respectively, the pipes m and n on the one hand and the pipes g and 1' on the other hand may be fed each with gas either commonly or' alternately. lhe bends t and 6' leading to the valves 8 and 8 may be selectively set in connection with the gas main 0 by means of a controlling valve u. As shown in Fig. 7, valve u is in position to allow gas to flowto bend t. Upon reversal of the oven, valve u is turned to supply gas to bend t. Bend t isconnected to supply pipes Q and r 'by a valve 8'. The valve e,fas shown, is in position to supply gas to both pipes g and r. Turning the valve 90 'degrees will cut the gas supply efi from one of the pipes and permit gas tn flow to the other of said. pipes. Bend 2? communicates with supply pipes at and n by means of a similar valve 8.

The heating takes place in the following manner: y

When the heating .fiues 0 are used, the bend t is fed with gas from thewmain o by positioning the valve a correspondingly. The strong gas flowing through the bend t is distributed according to the position of the three-way valve 8 either to the pipes q and nor only to one of these pipes, for example, the pipes'g. In the former case all inlets 0 and p of the heating flues c are fed with gas, whilst in the latter case only the higher inlets 0 are fed. To feed gas to the By means of a three-way valve though 0 have been fed duringa for example, half an After the flues sufliciently long time, hour, the usual reversal takes the valves u. Now the bends t are fed with gas and from these, by suitably positioning the valves '8, the pipes m and 'n; are sup lied either in common or only one of them. s to be understood in this case too a reversal. of the gas supply to the group an or n is made best in the intervals between the reversal of the valves u. The valves sand 8 ma be designed so as to feed gas-in one end osltion only the pipes in or q, in the other en position only the pi es n or r, andin the intermediate position bot pipes m and n or g and 1'. In this manner it is possible to set all valves 8 or 8 position by means of one single actuated from the reversing wine ull member As usual,

lace which, as to the gas supply is effected y reversing at the desired also the valves 1 are actuated by means of one pull member from the winch.

' The described gas sup 1y afiords the ad-' I vantage of the changeo feed of the heating flues' a and 0 obtained by the reversal of the valves u andofgthe air supply,"being efiected. quite independently of the manner of heatin within the individual heating flues. As alrea y pointed out,.the two gas inlets of each fed heating flue may be supplied with gas either lH- COHHMOII or alternately. It is therefore possible to displace in the simplest manner the highest heating sheet in each flue as desired either into upper or lower sections of the flue. If'now, as illustrated,

' the inlets d and e of the dues a differ in level not only from one another, but also relatively to the corresponding inlets o and p of the dues '0 a four-level heating is obtained and the inlets of each individual level. can be fed with gas fora period of any desired duration. 7

The embodiment illustrated in Figure 6 substantially difiers'from the last-described by the fact, that the inlets o and p of the alternate heating fines and their ascension conduits 0 and p are combined so as to form each one single inlet w and conduit w the supply pipes g and 1' consequentl forming also one pipe m. In this modifie gas supply a valve 8 may of course be dispensed with the pipe m. In spite of this notable simplification a three-level heating is still a possible in-this modification, if the level of the inlet to difiers from that of the inlets d and e.

The above-described invention is of course not limited to the heating of twin fines, al-

it afiords even with this construction. So the invention may be employed with ovens the walls of which are heated in halves, this being performed in the simplest manner by juxtaposing onthe one hand fiues c and all fines on the other hand and designing the gas supits greatest advantages viding in one being subdivided into vertical ply accordingly, by arranging the bends t with the valves .5; and the appurtenant pipes m and n on the one side of the main "0 and the bends?! with the valves 8 and pipes 53 and r on the other side of main 'v and by now feeding with gas the right-hand or left-hand half of the heating wall by reversing the valves a. In a similar manner the invention may be employed best with ovens in all the lines of one heating Wall of vvhich the same gas direction is always prevailing, by proheating wall only fines c and in the other well only lines 0 Having now particularly described and ascertained the nature of my said invention and in What manner the same is to be performed, I declare, What I claim, is 3- 1. In a gas producing oven having a horizontally elongated oven chamber, heating Walls therefor arranged on tvvo opposite sides of said chamber, each oi said heating Walls being subdivided into vertical heating fines, the bottoms of said flues being at the same level,a plurality of strong gas inlets for each of a plurality of said lines, the inlets Within each of said flues being arranged at difierent levels above the bottom of the flue, means for supplying strong gas jointly or independently to said inlets and means for supplying air at the bottoms of the fines.

2. In a gas producing oven having a'horizontally elongated oven chamber, heating Walls therefor arranged on two opposite sides of said chamber, each of said heating vvalls heating three, the bottoms of said ilues being the same level, a plurality of strong gas inlets arranged Within each alternate fine of each of the hea ing walls, the inlets Within each of said alternate fines bein arranged difierent levels above the bottom of the flue, means for supplying s rong gas jointly or independently to said inlets and means for supplying air to said "s belovv said inlets.

oclucing oven having a horiec. oven chamber, hea -i Walls therefor rranged on two opposite 51L of said chamber, each of heating walls being subdivided the level, a plus: Within each I v ues, of ea the be a arr ngecl at above o hot one of the flue, means joint or independel said inlets a means p .ing air said Flues, at bottoms oftne lines 4-. n a gas oducing oven having a horizontally olon Wells there a of said ch n I being subd the bott level, a p

zontally el sel fines being at the Fitz; m

ranged on tvvo .vvith relation to the into vertical heating i l e 7 'L 4. ted oven cuainoer, heating .e '1' a r @J. solo heating witness the flues being arranged at difierent levels above the bottom of the flue, the inlets of the fine being also arranged at difierent levels inlets or" a neighboring flue, means for supplying strong gas to said inlets and means for supplying air to said fines below the inlets.

5. In a as producing oven having a horizontally rfiongated oven chamber, heating Walls therefor arranged on two opposite sides of said chamber, each of said heating Walls being subdivided into vertical heating lines the bottoms of said fiues beingat the same level, a. plurality ofstrong gas inlets for each of said fiues, the inlets of each of the lines being arranged at dili'erent levels above the bottom of the line, the inlets of the line being also arranged at different levels with relation to the inlets of a line in aneighboring heating Wall, means for supplying strong gas to said inlets and means for supplying air to the fines below said inlets.

6. In a gas producing oven having a horizontally elongated oven chamber, heating vvalls therefor arranged on two opposite sides of said chamber, each of said heating Walls being subdivided into vertical heating fines the bottoms of s id fines being at the same level, a plurality of strong gas inlets arranged Within each of said lines, the inlets of each of the fines being arranged at different levels above the bottom of the hue, the inlets oi the flue being arranged different levels with relation to the inlets of a neighboring line in the some well, and being also arranged at difierent levels with relation to the inlets of a flue in a neighboring heating Wall, means for supplying strong gas to said inlets and means for supplying air to said fines.

7, In a producing even having horiuontely elongated oven chamber, and adapted to be heated selectively with strong gas or Weak gas, heating Walls therefor arranged on two opposite sides of said chamber, each of said heating vvalls being subdivided into vertical heating fines the bottoms of said fines being at the same level, a plum ity of strong gas inlets arranged Within each a plurality of said lines, the inlets of each of Hues bearranged diiierent levels above the of the flue, plurality of weal: gas mete arrange-d within each of a plurality aid lines, means for supplying strong 0 said strong inlets, I eons for supply- 8., a producing oven zontally elon ated oven chamber, a

to be heated eel. or gas, on two opposite s i 1 tool efor arranged I cnainoer, seen a sued 1 .s. 1 ve heatin i imaaee gas inlets arranged within each of said fines,

the inlets of each of the fines being arranged at difierent levels above the bottom of the flue, a plurality of weak gas inlets arranged within and at difierent levels above the'bottom of each of said flues, the strong gas inlets of each of-said flues being also arranged at difierent levels with relation to the weak gas inlets of the said flue, means for supplying strong gas to the strong gas inlets, means for sup lying weak gas to the-weak gas inlets, an means for supplying air to the flues below said inlets.

9. In a gas producing oven having a horizontally elongated oven chamber, heating walls therefor arranged on two opposite sides of said chamber, each of said heating walls being subdivided into vertical heating flues the bottoms of said flues being at the same level, a plurality of strong gas inlets arranged within and at different levels above the bottom of each of said flues, the inlets of alternate fines of a Wall being also arranged at different levels with relation to the inter mediate fines of the same heating wall, an ascension conduit communicably connected to each of the inlets of the'fiues, gas supply pipes, the conduits for the inlets of equal level in one of said walls being communicably connected to an individual supply pipe, a strong gas main, communicating connections etween the strong gas main and the gas supply pipes, valve means for controlling the supply of gas to the strong gas inlets and means for supplying air to" the fines, below said inlets.

In testimony whereof, name to this specification.

CARL OTTO.

I have signed my

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