US964635A - Coke retort-oven. - Google Patents

Description

` v. D. P. PIBSCHI.

G OKE RETORT OVEN. APPLIUA-TION FILED LDEO. 17, 19.07.

Patented July A19. 1910.

4 BHERTB--BHEET 1.

V.`1D 1.y PIBSGHI. COKE. RETOBT OVEN.

APPLICATION FILED DBO. 17, 1907.

111611161 July 19, 1910.

4 sums-911x111' 2.

Wma/y yV. D. E'. FIESGHI.

COKE RETORT OVE-N.

APPLICATION FILED DEG. 17, 190'7.

4 EHBETS--SHBET 3.

V. D. F. FESGEI. COKE BETORT OVEN. urmoATIoN FILED 11110.17, 1907.

Patented July 19,1910.

4 SHEETS-'SHEET 4..

VICTOR DOMTNIQUE-FERNAND FIESCHI, OF DOUAI, FRANCE.

' COKE animar-OVEN.

To all wwm fit 1mi/y concern:

Be it known that T, VICTOR DOMINIQUE FERNAND FIEscHI, a citizen of the French Republic, and resident of Douai, France, have-invented certain new and useful Improvements in and Re] ating to Coke Retort- 0vens, of which the following is a specication.

This invention relates to a coke retort oven and has for its object to provide an oven of this kind, working similarly with or without recuperation of the byproducts and with or without heating of the air.

This invention further has for its object to rovide a coke retort oven ada ted to rea ize the following conditions: l. "o cause the gases to descend vertically and to divide the combustion into numerous fines, which arrangement has for a long time been recognized as very advantageous and which has for a long time been .currently employed in retort ovens working without recuperation. 2. To realize a standard type of retort ovens adapted to work similarly in three dilferent manners: (a) with out recuperation of the by-products; (b) with recuperation of the latter; (c) vwith recuperation of the by-products and heating of the air by means of regenerators. 3. To realize with this retort oven of standard typeand in three different specified cases (f1/,b and c) an absolutely snnilar working (mixture of air and gas at the same points, that is where the combustion begins, same circuit of flames and so forth.) 4. To obtain an easy control and adjusting of the oven, each flue or channel being adapted to be examined upon its whole length. 5. To realize an absolutely uniform heating, the gasts owing to the special arrangement of the ifuesbeing obliged to heat the wall of the oven only at the places where they are admitted, that is to -the gases admitted at a determined point only heat the vertical zone ofthe wall, which corresponds to the vertical channel through which the as arrives.

T e annexed drawings show an embodi- `nient of this invention and in these drawings.

Figure'l is a longitudinal section on lines AwA. B-B and C--C of the Fig. 2. Fig.

Speeiiication of Letters Patent. Patented July 19, 191). Application filed December 17, 1907. SerialfNo. 406,919.

2 is a cross section partly on line D-D, partly on line E-E of Fig. l. Fig. 3 is a partial cross section drawn at a larger scale on line D-D of Fig. l. Fig. 4 is a horizontal section drawn at an enlarged scale partly on line F-F of Figs. l and 3 partly on line G-Gr of the same figures. Fig. 5 is a horizontal section partly on lines FF and H-H of Fig. 1 and partly on lines G-G and I-I-of the same ligure. Fig. 6 is a diagrammatical sectional view, on a small scale, taken on the line L-L ofFig. 2. Fig. 7 is a plan View of the metallic controlling device, and; Fig. 8 is a central sectional view on the line 8-8 of Fig. 7

In this device each vertical wall orcolumn is composed of thirty two vertical channels or fines forming sixteen groups of two channels g and It communicating with each other at the top by means of the duct fw and connected at the bottom by means of the chan-l nels y' and jl with the regenerator i placed directly under the oven. The said regenerators are alternatively put into communication by means of the passages o and 7c with two large Hues Z arranged alongside the battery at the front and the back thereof and communicating either with the chimney stack or with the atmosphere. This may be realized in different ways, as for instance by the arrangement diagrammatically shown in Fig. 6 of the drawings; in which the large channels or lines Z are each in communication by one end with a. draft chimney S and at the other end with the atmosphere as at S1; the dampers u and u1 allowingthese communications to be opened or closed as desired. The upper ends of each of the thirty-two Vertical channels are rovided with conical nozzles, the ducts (L which form gas burners being closed at said upper ends by means of lugs al, so that the interior of the ducts or c iannels may be examined when desired; The said burners are adapted to communicate l. By means of the pipes m and a with the ducts 7' as lshown in Fig. 2 intended to receive the return gases freed from the byproducts; this sprin being arranged in such a manner that the liurners havin an odd number have a feed which is abso utely inplugs b have also been erator i,

dependent from that of the even numbered burners. As is also noted, the pipe n is pro- 2. With the interior of the oven by means v of the openings e2 for the two extreme burners and the openings e and c1 for the others; the latter openings alternately end in the right hand oven and in the left hand one. y This communication which is directly effected for the extreme burners, is made by the intermediary of the small ducts f and f1 for the others; a plug Z allows of this communication being established or done away with; a second plug Z1 closes the communication with the outside.

Each series of two channels may besides this communicate directl with the atmosphere by'means of the p ug b; the plug b1 may then be replaced by a metallic closing device, ada ted to control the introduction of the burning agent and as shown in Figs. 7 and 8 is constructed of two circular nietallic disks o, suitably secured for independent rotation by means of a headed bolt p and each provided with sector apertures g, so that by causing these disks to rotate upon each other, the amount of air admitted, can be increased pr decreased, as desired.

Working of the Oven.

Workingwz'tkout recuperation-The plugs d having been removed and the holes e2 freed (which may be easily eected when the oven is open), the gas produced by the distillation goes from the oven into the burners a, as it has been stated hereabove; the sections of thelopenings have been calculated so as to admit the gas in a proportion which is the greater the farther one is away rom the center of the battery in order to take into account the cooling due to the air surrounding the ends of the oven. As the removed, the air the arrival of which may be controlled by the closing device which replaces b1, arrives at fw and is equall distributed between g and L, the combustion therefore be ins to take place at the conical end of the urners and the combustion gases aspired by the draft of the chimney go into the lower part where the combustion must be more complete and from here through j and jl into the regenthe channel lo, the large flue Z and from here into the chimney stack. The

draft is controlled for each vertical channel by means of the registers k1. For each of the thirty-two channels the draft is con-V trolled` by the construction of the oven itself by giving the sections of the connecting- `ducts j and jl variabler values in relation with the amount of gas admittedat a and the distance which the gases must iiow in the regenerator in order to arrive atA the escape la. I'

Working with Arecuperation, 'of the by# produca-#The plugs Z and d1 are carefully lutedas well as the plugs of the holes c2. The gases coming from the plant for the recuperationbf the by-products arrive in the burners through two ducts r placed alongside and on each side of the battery. On these pipes are branched smaller pipes fm,

the burner a being supplied with gas throughthe 'medium of the pipes n, which are provided' with cocks nl intended to serve as a controlling means through the pipe in leading from the supply pipe r and the air necessary for the combustion continues to. arrive as in the working described in the preceding paragraph; this being given, the way offthe gases andthe heating are eected in exactly the same manner' as it has been described above.

Working with recuperation -of the byproducts and heating of the air-The plugs b, b1', Z and (Z1 are put in place and luted carefully. The combustible gases arrive as in the preceding method of working but owing to the presence of a set of cocks the burners a'of even order receive alone combustible gas during twenty minutes; the following twenty minutes the burners of an odd order receive the gas supply; at the same time as this changing of working is effected one of the large channels Z which was in communication with the chimney is put into communication with the atmosphere, while the other channel Z is in communication with the chimney. The device producing the said operations is controlled in such. a manner that when one series of burners receives the gas the sixteen corresponding verticalchannels communicate through j, c', 7c, Z with the chimney and the sixteen others with the atmosphere through the ports V as communieating means. Consequently when the burners corresponding to the sixteen channels z, are feed with gas, the draft of the chimney will produce an air flow which entering-through Z will cross the generator and be reheated there; it will then rise in the sixteen channels g and support the combustion of the gas arriving from the top of the sixteen channels L, the products of combustion will go to the chimney passing through the regenerators which will be heated in order to yield a part of their heat to the air which will pass through them during the following ing with regenerators (which will for instancevbe the case when one needs steam instead of gas) it is evident, that it is absolutely useless to construct regenerators; the latter have only, in this case, the proportions of 'a simple channel or passage, which has been realized by way of example on Fig. 1 of the annexed drawings wherein the pilings or part comprised between m1 and y, 'y1 has been supposed removed and the height of the piers of the regenerators reduced the entire amount comprised by said lines without anything being for this reason changedV in the working and arrangement of the oven.

` It will be seen from the foregoing specification of the oven and the four methods of working of same that the objects of this invention stated in the present specification have been realized. As a matter of fact the gases How in a vertical descending direction and the combustion has been fractioned owing to the presence of numero-us channels. Furthermore the oven constructed according to the principles of the present invention is adapted to work indiiferently in three different manners (a) "without recuperation of the by-products (b) with recuperation of same, (c) with recuperation of thc byproducts and heating of the air by means of regenerators. Besides this, the described oven allows of an absolutely similar working being-obtained in these three cases c, b and c, the gas being admitted by the conical end of the duct a and the air being admitted at w that the combustion is always produced in the same manner.

As the pipes n are provided with cocks it is easy to perform 'the control and the examination of the channels may be carried out in the most easy manner by withdrawing the plugs al, which realizes the fourth condition stated in the beginning. As to the fifth condition stated, z' e. the uniformity of heating, it is realized by the division of the vertical partition walls into sixteen velements absolutely independent and comprising each two channels, each .of these sixteen elements 4being provided with a special admission of air and gas which will be ignited and be completely burned inside this element; the gas ,which is conveyed thereto will consequently be used solely for heating the corresponding part of the wall of -the oven.

Having now fully described my said invention, what I claim and desire to secure by Letters Patent, isv 1. In a coke retort oven the combination with a series of juxtaposed retorts of vertical partition walls separating each pair of retorts, a plurality of vertical channels proi vided in each of the said'partition walls, a burner at the top of each channel, separategas feeding ducts for all 'the burners,ducts for feeding air from the outside to two neighboring` burners, mounted into the said ducts and adaptedA to control the 'air lowtherethrough, means for closing the said ducts, ducts adjustablel means leading from two neighboringburner' pipes communicating with the adjacent retort, means for closing` the said ducts and means for connecting the lower ends of the said vertical channels with the chimney, substantially as and for the purpose set forth. j

2. In a coke retortoven the combination with a series of juxtaposedretorts, of vertical partition walls separating each pair of retorts, a plurality of vertical channels provided in each ofthe said partition walls, a vertical burner pipe arranged above each of the said vertical'channels, a plug at the upper end of the said burner pipe and a nozzle at the lower end, separate gas feeding ducts for the burner pipes, ducts for feeding air from the outside to two neighboring burners, adjustable air inlet devices in thc said ainfceding ducts, means for tightly closingI the said air inlet ducts, ducts leading from two neighboring burner pipes communicating within the adjacent retort, means for tightly'closing the said ducts and means for connecting the lower ends of the i said vertical channels with substantially forth.

3. ln a coke retort oven the combination with a series of juxtaposed retorts, of vertical partition walls separating each pair of rctorts, a plurality of vertical channels provided in each of the said partition walls, a vertical burner pipe arranged above each of the said vertical channels and ending at its upper end in the atmosphere, a plug` for tightly closing the said upper end, a nozzle at the lower end of said burner pipe, separate 'gas feeding ducts for the burner pipes, means for closing separately eachof the said gas feeding ducts, ducts adapted to feed air from the outside to two neighboring burners, adjustable air inlet devices in the said air ducts, means for tightly closing the said air ducts, ducts leading` from two neighboring burner pipes communicating the chimney, as and for the purpose set with the adjacent retort,- means for tightly closing the said last named ducts, two regenerators arranged in the lower vertical channels, ducts connecting one of the regenerators with those vertical channels of the partition wall which are of odd order and the other rcgenerator with the vertical channels of even order, a main duct arranged in front of the said regenerators and connected phere, substantially as and for the purpose 10 with those of them which are in relation with the said channels of even order, a main duct arranged aty the sides of the said regeneratoi's and connected Wit-h those regenerators which are connected With the said Vertical channels of odd order and means for connecting the said main channels alternately with the chimney and the atmosset forth.

In testimony whereof I have hereunto set my hand in presence of two Witnesses.

VICTOR DOMINIQUE FERNAND FIESCHI.

' Witnesses:

ADRIEN JOSEPH GIOT, ALBERT DPLAUOFE.

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