US1524098A - Standpipe for coke ovens - Google Patents

Description

J. H. MEANS -STANDPIPE FOR COKE OVENS Filed Dec. 2, 1920 INVENTOR.' 15hr: MEQHS BY "M ATTORN Y Patented 27, 1925.

UNITED STATES 1,524,098 PATENT OFFICE.

JOHN E, MEANS, OF MAYVILLE. WISCONSIN.

STANDYIPE FOR COKE OVENS.

Application filed December 2, 1920. Serial No. 427,689.

To all whom it may concern Be it known that I, JOHN citizen of the United States of America, and a resident of Mayville, in the countyof Dodge, in the State of Wisconsin, have in vented a. certain new and useful Improvement in St-andpipes for Coke Ovens, of which the following is a true and exact de-' scription, reference being bad to the accompanying drawings, which form a part thereof. 7

My invention relates to coke ovens and 'iarticularly to the standpipes used in connection with the openings for the escape of gasformed in the tops of the ovens. As heretofore generally constructed and used the standpipes, usually of castiron, have been supported above the openings in the tops of the ovens, a space between the standpipe and the oven top being sealed with sand. This construction has proved unsatisfactory because, owing to the high temperature of the gases. the base of the standpipe is apt to melt and the melted iron flowing into the ovens is very apt to damage them. Another draw-back found to exist in connection with this structure is that considerable and objectionable amounts of carbon are apt to be deposited in the standpipe. Again, the ordinary construction of standpipe is such that Where a liquor stream or spray is used to wash and keep clean the valve and valve seat used between the standpipe and the collecting main, there is liability of some of the li uor flowing down the standpipe which is o jectionable for many reasons. a

The objection of my invention is to provide a standpi e structure which will be free from these de ects and which will be highly eflicient. In particular and generally speaking my invention consists in providing a water seal between the lower end of the standpipe and the as escape opening in the oven for the den 1e purpose of keeping the lower portion of the standpipe cool an of cooling the gases and of mixing with them vapor and water so that they will no longer deposit objectionable amounts of carbon in the standpip'e. p

Also, my invention consists in a construction by which the top of the standpipe is connected to the main or rather to a valve chamber openin into themain by a transverse downwar ly inclined section or continuation of the standpipe. p

H. Means, a

My invention and its preferred construction will be best understood as described in connection with the drawings in which it is illustrated in which v A indicates the top of the oven structure, A the opening from the oven through the top of the structure for the escape of gas. B is an ordinary supporting structure or frame for the collecting main indicated at C having an opening formed through its top as indicated at C which connects with the valve chamber D having in it a valve seat D a removable. cover D a door D, a conduit extension D inclined upwardly from the valve chamber and a valve D the standpipe made up, as shown, of three cast iron sections E, E E the section E having a downwardly inclined conduit eX- tension E which is bolted to the conduit extension D, a lateral opening E for cleaning purposes and a cover E. The lower extension E of the standpipe is formed with a downwardly extendingflange E at its base and with an offset portion E and opening E for cleaningpurposes. F is a water receptacle supported on the top of the oven structure and formed with a tubular passage F extending through it whichregisters with the opening A in the to of the oven. G is a water supply pipe an G indicates an opening at the top of the water receptacle for maintaining the water level at a desired point. Any amount may be used for this purpose.

H is a standpipe extension or head formed with an inwardly extending flange H at its top adapted to rest on the flange E of the standpipe the vertical depth of the extension H being such that when in positionas shown in the drawing it will extend down below the water level in the water receptacle forming, as shown, a water seal. I is a spray pipe for liquor used to keep the valve seat and valve clean.

The Water receptacle is preferably made of sheet metal, steel by preference, cast metal being less desirable for the reason that it is liable to crack and let the water runinto the oven. The extension or head H is also preferably made of sheet metal, steel, while it is advisable to make the remaining portion of the standpipe of cast metal sections as shown.

In operation the hot gases from the oven issue through the opening A and the tubular passage F of the water receptacle to E indicates pass through the head portion H into the standpipe and thence, the valve D being opened, into the collecting main, the water in the receptacle keeps it and its tubular passage F sufficiently cool while the heat efi'ects a considerable vaporization of the water in the annular steam generator which mixes with the gases from the oven opening of course to somewhat cool them and preventing, as I have found, such deposits of carbon in the standpipe and its connections as were found to be troublesome in the older constructions.

The standpipe extension or head H is vertically'movable so that it can be raised to clea'r 'the"edges of the Water receptacle and perm t" access to the water receptacle or permit it torbe removed and replaced.

A liquor, preferably weak ammonia and tar mixed or either ammonia liquor or tar alone is preferably sprayed in through pipe I to keep the valve chamber its seal and valve clean and by inclining the conduit section D and E as shown I insure that the liquor will not flow into the standpipc.

Having now described my invention what I claim as new and desire to secure by Letters Patent, is:

1. In combination with a coke oven having an opening through its top for the escape of gas theretrom,a water receptacle supported on the top 01 the oven structure and surrounding said opening and a standpipe supported above the opening and extending into the water receptacle to a point below the water level therein.

2. In combination with a coke oven having an opening through its top for the escape of gas therefrom, a Water receptacle supported on the top of the oven structure and surrounding said opening, a fixed standpipe supported above said opening and a vertical- 1 movable standpipe extension'supported on the bottom of the standp ipe and extending into the water receptacle.

In combination with a coke oven having an opening through its top for the escape of gas therefrom, a water receptacle supported on the to of the oven structure and surrounding sai opening, a fixed standp-ipe supported above said opening having an annular outwardly extending flange at its base and a vertically movable standpipe extension having an inwardly extending flange at its top adapted to rest on the flange at the base of the standpipe and support the ex tension with its lower edge in the water rcceptacle.

4. In combination with a coke oven having an opening through its top for the escape of gas there form. a sheet metal water receptacle resting on the top of the oven structure formed with a tubular passage through the receptacle registering with the opening in the oven and a standpipe supported above the opening and extending into the water receptarle to a point below the water level therein.

5. In combination with a coke ovcn having an opening through its top for the escape oi gas therefrom. a sheet metal water receptacle resting on the top of the oven structure formed with a tubular passage through the receptacle registering with the opening in the oven, a standpipe supported above the opening and a vertically movable sheet metal standpipe extension adapted to be supported on the bottom of the standpipc and to extend into the water receptacle.

6. Means for cleaning an oven conduit comprising an annular steam generator at the base of the oven conduit providing a passage therethrough for the exhaust of an oven into the conduit, said steam generator being in the form of a receptacle containing water and into which water the lower end of the conduit extends to establish communication between said steam generator and said oven conduit.

7. Means for cleaning an oven conduit comprising an annular steam generator at the base of the oven conduit providing a pas sage therethrough for the exhaust of an oven into the conduit, and means movably suspended l'rom the oven conduit with its lower end shielded by the steam generator and establishing communication between said steaingenerator and said oven conduit.

JOHN H. MEANS.

Witnesses:

ETHEL J. BROWN, WM. W. JANZE.

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