US939086A - By-product retort coke-oven. - Google Patents

Description

UNITED. STATES To all whom it may concern:

Be it known that I, HUGH citizen ofthe United States, residing at- Bellevue, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in By-Product Retort Coke-Ovens, of which vthe following is a specification.

My invention relates to by-product, retort coke ovens, and is an improvement consisting of the construction and arrangement of, ovens substantially as herein shown and described and more particularly pointed out in the claims.

It is a common practice in vcoke ovens to employ reenerators adapted to pre-heat the air use for combustion purposes by effecting a reversal of flow of air and hot gases therein at intervals.

Now the object of my invention is to provide a sim le form of oven adapted to preheat the a1r used for combustion' urposes without-a reversal of flow and wit out the use of regenerators. With thisendin view, I provide means to utilize the burned gas from each burner or pair of burners and their correspondi set of -oven heating ilues to heat a continuous inflow of air for that particular burner or pair of burners, In other words, a continuous flow of fresh air for each burner is reheated by the heat generated by the same burner, and independently of the other burners of the oven. Each burner thereby receives a direct supply of preheated fresh air all 4of which is con#V ducive to thefbest 'combustion and to continuous and uninterrupted operations ofthe oven. In the accompanyin drawings, Fi ure l is a -sectional view o my improve coke oven centrally through a coking chamber. Fig. 2 is a sectional view in plan of, several ovens,/.taken on three different horizontal planes represented 'by' lines e-z, ftp-Jv. and l:v -w, Fi 3 and'4, respectively. Fi 3 is sections. View ofthe oven on two ilerent lines` A--A and B B, respectively of Fig. 4, showing in' the irst instance the combustion and oven heating dues, and in the'second, the air -heating and burned gas flues. Fig. 4 is a sectional view through several ovens on lines y-y and -m, Fig. A 3, and also-shows a front view thereof at the right.

The oven in its entirety embodies a series Penn Tron, a

speeiacauon of Letters 15a/cent. Application tiled December 17, 1908.

.arranged-in tiers of three at either' si PATENT OFFICE.

Patented Nov. e, 1909.

sera1No.467,933. v L

of coking ovens, or more specifieallyspeaking, aseries of coking chambers A arranged paittllelly with intervening walls a'extending from one side yor front to the other.

Openings B in the top of the oven are pro` r e .chambersA .with openings C arel'also gas into collecting E which conduotp's'it.-

'60 vided as usual to cha the coal to be coked, an provided to convey the `plpes D and gas main to aq, as cleaning plant or condensin v ltons forlt e recovery of the by-pl-'dueistnit f shown The clean gas is returned `throu' distributing pipes F and is used to heat t iues qfpthe coking chamber to coke the coal `l, thereinfl'md to this end burnersG are condy 7oA nectd to pipes F by pipes H: f l AAs shown, there are twelve burners Gr` to, each oven A, com risin fourfzsets of three burners each. T us, t ee burnersG are arrangedone above the other at either side of oven chamber A at both fronts, and each burner G supplies gas to a corresponding number of combustion chambers I having a heating flue I which forms a part thereof. Chambers I and I are therefore horizontallg de o oven chamber .A and extend parallel therewith and lengthwise thereof from both fronts to middle division wall 2. Horizontal .walls 3' separate the respective combustion and heatinor chambers Iv and I from like chambersa ,ove and below and thereby make them iiildeinendentlyV operative and responsive to their own burners G and to none of the others.

Communication lbetween main combustion chamberI and heating ilue I is by passage 4 at middle wall 2 and combustion takesv place lin both of course. Now following the course of the ases from burne` G, the same" 9.5 are discharged from flues I aty lhe front endthereofA throu h a valved opening '5 and pass into the ront end ofa passage 6fhori zontally arranged in the center of Iwallie and parallel to and on the'same planewith d and between iiues I' see Fig. 3 and also section w-w, Fig. 2. The inner end of passa e 6 opens into vertical flue 7V next 'to mid e wall 2 and the bottom of'this flue comof the entire battery of ovens and connect with a stack (not showny.- Two ilues R are preferably used, one for each front of the battery, and dampers 11 are used at the discharge end of iues 9 to control the heat under the oven loors.

Now it is obvious that combustion can not take place in the several combustion chambers unless air is provided in suiicient quantities to produce this result, and to obtain the best results this air must be preheated. Therefore, I provide each of the twelve burners G and'their corresponding combustion chambers with air passages K, K having intakes 12, and which passages are located in walls a between combustion chambers I and run parallel therewith from front to rear. A horizontal partition 13 divides each air passage into two parts K, K respectively to provide a circuitous travel of the air. Thus, air is taken in at intakes 12 and passes through passage K to rear wall 2 in the top passage K of each tier and to the dividing ,wall 14 in the other or lowerpassages K and thence the iow is outward to lateral valved openings 15 which communicate with combustion chambers I at a point directly opposite the mouth of burners G.

' The air in its travel is exposed to the heated walls of both combustion chambers I at either side thereof and also'of heating chamber I and becomes heated thereby before its exit into the combustion chamberv where it i mixes with the gas from the pair of burners G of that particular set. Then the heat from the burned gases flowing through middle passage 6 also contributes to the heating of the air in passages K through the intervening Walls which separate them and form their bottoms and tops, respectively.

Although no valve 1s shown at each intake it is obvious that one may be used to control the inflow ofair, especially if none .be used at openings 15, the preferred location.

Now in operation, each burner Gr is provided with fresh air which becomes preheated by passing through top assage K from the front to the center of) the oven battery and thence returning through lower passage K to the openings 15 through which the. now hea ted air is discharged into corn bustion chambers I where it is mixed with the from burners G and where combustion occurs in flue chambers I and I. The burned gases now pass to the burned, gas passage 6 and again travel toward the center of the oven battery giving up heat to the air in the flues K and K and turning downward at the end through vertical flue 7 and into flue 9 beneath the oven door, finally flowing into waste gas ilues R.

The regulation of hating is controlled by suitable dampers 16 a openings 5 in chambers I, and the air is regulated by suitable dampers 17 at openings 15 inai-r passages K, and the gas sup ly is regulated by valves 18 at burners G. for lues 9 as hereinbefore described.

In view of the foregoing description, it

obviously apparent that the operation of the ovens is simple and control of each oven coinplete and independent of the rest in the battery, and that a uniform heat can be maintained in all the walls at all times, and 1f desired, I can place peep openings (not shown) at the ends of each heating flue or passage for inspection purposes. It will also ampers 11 are also usedV be noted that with this form of Oven, I am .there are no reversing operations required norsuchexpenses incident thereto a's with the use of ovens employing regenerators.

What I claim is '1. A by-product coke oven having a walled coking chamber and a series of parallelly ar-A ran ed combustion chambers in the side walIsthereof one above the other and independent of each other, and a as burner for each of said combustion cham ers, and said air passages adjoining each combustion chamber and opening thereinto at said burners and comprising two-part forward and return portions extending the full length of said combustion chambers, and separate air intakes for each of said airl assages and their respective combustion c ambers and burners. i 2. Aby-product coke oven having awalled cokng chamber provided with a series of separate combustion chambers longitudinally arranged at each side thereof at different elevations and each of said combustion chambers having a separate discharge passage for the burned gases therefrom arranged parallel therewith and at one side thereof, and said discharge assages having com-y munication with a ischarge flue beneath said oven chamber.

3. A byfproductcoke oven havinga walled c oking chamber provided with a series of separated and independent combustion cham-A bers arranged longitudinally thereof and each of said combustion chambers having air centi thereto substantially the full length therecf and with a return extension and each side walls also having'a series of separate ilo #intake passages arranged immediately adjaof said `oombustion chambers also provided with horizontal discharge passages for the burned gases arranged adjacent'to said air intake passages, and whereby the air for combustion purposes is preheated.A

4. A by-product coke oven having a series 130 of coking chambers and intervening walls provided with vcombustion chambers at each side thereof and air intake passages there-for arranged substantially the full length of and centrally of said walls between said combustion chambers, said walls having horizontal discharge passages for the burned gases from said combustion chambers located between said air intake .passages the full length thereof, whereby said air passages are exposed at all sides to the heat ilues within said walls.

5. In by-product coke-ovens, a batter of ovens having intervening walls provided with a series of separate combustion chambers arranged in pairs at different elevations therein and separate gas burners therefor,

' and each pair of said combustion chambers having a discharge passa e for the burned gases and also a hor1zonta air passage centrall located between them substantially the ull length thereof, and each of said air passages having an independent fresh air intake and outlet openings .for its respective combustion chambers, and a discharge flue open to the burned gas passages.

6. In by-product coke ovens, a battery of ovens arranged in parallel relation with separating walls and separate combustion chambers arranged in tiers in each wall, and separate burners for each combustion chamber, and said walls having double air vpassages adjacent to said.combustion chambers substantially the full length thereof and also discharge passages adjacent thereto and to said air passages and parallel therewith, and waste gas vflues lengthwise of said battery ott ovens aving connecting flue's with all said discharge passages, and dampers for said respective chambers, flues and passages to reg`-" u ate the flow of the air and gases and heatproducts.

In testimony whereof I aHx my signature in presence of tw'o Witnesses.

HUGH PRENTICE. W'itnesses:

J. S. RoDGERs, JAMES J. CLOONAN.

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