US3054730A

US3054730A - Longitudinal anchoring for coke oven batteries

Info

Publication number: US3054730A
Application number: US13549A
Authority: US
Inventors: Willeke Bruno
Original assignee: Koppers Co Inc
Current assignee: Beazer East Inc
Priority date: 1960-03-08
Filing date: 1960-03-08
Publication date: 1962-09-18
Anticipated expiration: 1979-09-18

Description

B. WILLEKE Sept. 18, 1962 LONGITUDINAL ANCHORING FOR COKE OVEN BATTERIES Filed March 8, 1960 IN V EN TOR. Bzwva CF/IL L 5x5 United States Patent 3,054,730 LONGITUDINAL ANCHORING FOR COKE OVEN BATTERIES Bruno Wrlleke, Gladheck, Germany, assignor, by mes le assignments, to Koppers Company, Inc., Pittsburgh,

Pa., a corporation of Delaware Filed Mar. 8, 1960, Ser. No. 13,549 2 Claims. (Cl. 202268) The invention relates to apparatus for longitudinal anchoring of coke oven batteries by means of Vertical buckstays arranged upwardly alongside the pinion wall ends of the oven battery at the two opposite longitudinal ends thereof and tie-rods longitudinally connecting the buckstays with intermediate connection of springs between the tie rods and buckstays.

Coke oven batteries are conventionally braced as aforesaid both in the longitudinal as well as in the transverse direction by tie-rods which are supported at their ends on the vertical buckstays with an intermediate connection of springs, for example cup. springs. The springs can absorb a definite amount of expansion corresponding to the permissible load. Nuts which are variably adjustable on the tie-rods to vary the thrust thereof and have a compressive effect on the springs are gradually loosened, in the course of the heating, corresponding to the progressive expansion. A uniform stress is maintained in the masonry in this manner.

The longitudinal tie-rods have to absorb the stress of the oven masonry of a number of ovens of the battery. Therefore, they have a considerably greater length than the transverse tie-rods which absorb the expansion of the oven masonry transversely to the oven battery in the longitudinal direction of the oven chamber. Accordingly, the longitudinal tie-rods also have to absorb considerably greater forces of expansion so that stronger and a considerably greater number of springs is necessary for the absorption of these forces than is required for the transverse tierods. These springs can also follow a definite expansion of the oven masonry in the case of a definite maximum load.

Therefore, the bracing of the masonry by the longitudinal tie-rods is necessarily effected with use of five buffer springs. However, a heavy and expensive construction results therefrom which still has the disadvantage that the angularly constructed springs jam easily and in case of a loosening of the variably adjustable nuts, for example in the case of a greater expansion of the oven masonry, this loosening is detrimental to the bracing of the oven masonry.

In contrast to the transverse tie-rod anchoring, the longitudinal tie-rod anchoring can not be effected by projecting the bnckstays, to which the ends of the tie-rods are attached above the oven roof for the purpose of attachment to the tie-rods arranged in the oven roof, since with coke oven plants that usually consist of a plurality of batteries, the ends of the batteries are flushly connected with one another by a platform in the vicinity of the oven roof or crown. This is necessary in order to make possible the accessibility for passage along the crown or roof of the entire oven installation, especially for the operation of the service machines along the oven crown or top. Therefore, the tie-rods at the longitudinal ends of the battery necessarily had to be previously drawn downwardly and somewhat inclinedly in order to be able to effect their connection to the buckstays. By the arrangement of the heavy springs with support plates, and the like, there exists with this arrangement the danger that, in case of a break of the tie-rod in the vicinity of the longitudinal end of the battery, the springs may fall down with the broken end of the tie-rod into the area alongside the pinion wall.

The invention now consists in effecting the longitudinal anchoring of coke oven batteries so that at a level in line with the tie-rods in the oven roof 2. housing is arranged in the vertical buckstay, through which the tie-rods pass and which receives the springs. The housing is firmly connected at the top of the buckstay, whereby the springs are supported in the housing adjacent to the end of the oven battery.

In this way the springs consisting of cup springs arranged in a series next to one another now rest on the buckstay itself being contained in a housing firmly connected with the top of the buckstay, without being able to fall down in case the ends of the tie-rods break. The housing does not have to be longer than corresponds to the depth of the heavy vertical buckstays since the number of cup springs to be provided in the housing and the resultant movement of the springs are sufficient in order to absorb the high forces of the oven masonry. The housing firmly connected with the buckstay transmits the thrust of the tie-rod to the buckstay and is arranged horizontally under the top of the oven roof or terminates at the top of the latter so that the installation of the platform between two ends of the battery is not hindered.

'Another object of the invention is to construct the housing through which the tie-rod passes in a tubular form and to rigidly connect it tightly with a plate at one end of the housing which is fastened to the longitudinal pinion wall of the oven battery, and to arrange adjacent to the outer end of the springs in the housing a variable pressure ring sleeve which projects into the tubular housing even after complete expansion of the springs. In this way the springs are completely protected against atmospheric influence, and preferably covered by a cap.

The longitudinal tie-rods can be made in one piece, only with dilficulty as a result of their great length of, for example, 30 meters and more; consequently, they were previously made of individual sections riveted together. However, for this riveting a greater cross-section heretofore has been necessary at the connecting places as a result of the weakening by the rivet holes and a greater number of rivets is necessary in the case of a high transmission of force. The riveting therefore had to be effected The invention now provides, to eliminate these disadvantages, etfecting the connection of the individual S667 tions forming the tie-rod by providing the individual sections of the tie-rod with abutting end to end parts having, for example, terminal transverse reinforcements in the form of drop forged braces which, after the joining of the abutting parts of the tie-rod sections, are appropriately enclosed by connecting pieces which are suitably fastened by screws that pass through portions of the connecting pieces in an area out of the range of the tie-rod. Such a connection can be made quickly at the construction site without expensive erection costs and is capable of transmitting high forces.

The invention is illustrated in the drawings.

FIG. 1 diagrammatically illustrates a side elevational view of a coke oven battery.

FIG. 2 shows a. vertical longitudinal section through part of the top of the coke oven battery.

FIG. 3 is a top plan view of a part of the tie-rod connection.

FIG. 4 shows a section along line IVIV of FIG. 2.

As is apparent from FIGURE 1, the coke oven battery consists of a row of horizontal coke oven chambers 1 with intermediate heating walls In arranged between the over chambers 1. The oven battery is braced in the transverse direction (lengthwise of the heating walls 1a and coking chambers 1) by buokstays 2 arranged on each colke Patented Sept. v18, 1962 and pusher side of the battery and tie-rods 4 connecting these buckstays 2. The oven masonry is braced in the longitudinal direction of the oven battery by means of tierods 5 which consist of individual sections and are connected with one another at their abutting ends So by connecting pieces 6.

Vertical buckstays 8 are arranged alongside the pinion walls at the longitudinal ends 7 of the oven battery and the longitudinal tie-rods are supported on these buckstays 8. As is apparent from FIG. 2, this support takes place at one longitudinal end of the battery by a cap 9 which is fixedly arranged on the tie-rod and which fits against buckstay 8. At the other lefthand end 7 of the oven battery the tie-rod is supported on vertical buckstay 8 by means of cup springs 10 encircling the rod 5 and arranged in a housing 10a and a nut 12 by which the springs are adjustable against the housing through the thread 11 on that end of the tier-rod 5.

The housing 10a is tubular and the cup springs 10 are arranged essentially with little play on the portion of the tic-rod S therein, which latter passes through housing 102: and receives the nut on a part of the rod beyond the housing. The vertical buckstay 8 is cut out in the vicinity of housing 10a and the latter is welded thereto. Furthermore, the housing is reinforced on the buckstay 8 by means of vertical and horizontal stays 21. A vertical supporting plate 13 which is also welded to the housing 10a is fitted against the pinion wall oven masonry; the buckstay 8 is also welded to the supporting plate 13. Furthermore, a vertical plate 14 of the housing is also welded to the front flange of buckstay 8.

A pressure sleeve 15 is axially slidably mounted on the end of the tie-rod 5", between the nut and the cup springs whereby the sleeve 15 acts against the cup springs 10 through an interposed disk 16, when adjusted by the nut 12. The pressure sleeve 15 has such a length that it projects from the housing 10a by the amount x when the bracing of the masonry is effected with the necessary pressure. This amount which is variable by a cap 15a, which is adjustable on the pressure sleeve, is easily established from the outside so that an adjustment of nut 12 is necessary in the case of a change of the amount x.

The individually joined abutting parts of tie-rod 5 are provided at their ends with oppositely disposed upper and lower drop forged, transverse semi-circular reinforcements 17. These semi-circular reinforcements 17 of abutting parts are joined by enclosing them on both sides by oppositely disposed connecting pieces 6 which have a fitted borehole or recess overlapping both semi-circular reinforcements of the joined parts. These pieces 6 are then clamped together by screws 18. The abutting ends 5a of the individual tie-rod parts 5 are preferably made of fiat steel.

The longitudinal tie-rods 5 are located in the oven roof and are covered by ceramic slabs 19. Metal covers 20 which can easily be removed for inspection of the connecting places are arranged in the vicinity of the places where the parts 5a of the tie-rod are connected together.

I claim:

1. Longitudinal bracing means for coke oven batteries comprising: a first vertical buckstay alongside a pinion wall at one longitudinal end of a battery of horizontal coking chambers and intermediate heating walls arranged side by side in a row; a second vertical buckstay at the other end of the battery; a housing supported by and firmly fixed in said first buckstay at the level of the roof of the battery to transmit thrusts to this buckstay horizontally; a tie-rod fixed with said second buckstay and extending through the roof of the battery longitudinally of the row therein and passing through said housing; a series of springs located in the housing and disposed in freely encircling relation with the portion of said rod in the housing for movement therealong against a part of said housing, to transmit thrusts from said rod to the housing; and adjusting means at the exterior of the housing and acting between said rod and said springs to exert variable thrust on the springs against said housing for transmission of the thrust to said first buckstay alongside the pinion wall by said housing; said housing being a horizontal tubular member and having a transversely extending plate member at one end in position to receive the thrust from the springs and disposed against the pinion wall of the oven in the region of the oven roof, and said adjusting means including a sleeve freely encircling said rod and telescopically insertable in the housing with a disc between the end of the sleeve and the springs in the housing to close off the space between the sleeve and the housing from the atmosphere and a screw cap adjustable along the outside of the sleeve to limit the expansion move ment of the housing relative to said rod.

2. Longitudinal bracing means as claimed in claim 1, wherein the tie-rod comprises rod sections with end to end longitudinally abutting parts, said parts terminating in oppositely extending transverse reinforcements at the abutting ends of the parts, and the parts being connected by oppositely disposed plates embracing the reinforcements of the abutting parts and secured together outside the area of the abutting parts.

References Cited in the file of this patent UNITED STATES PATENTS 2,582,238 Dobson Ian. 15, 1952 2,839,454 Van Ackeren June 17, 1958 2,853,440 Hughes Sept. 23, 8

FOREIGN PATENTS 9,765 Great Britain Feb. 1, 1915

Claims

1. LONGITUDINAL BRACING MEANS FOR COKE OVEN BATTRIES COMPRISING: A FIRST VERTICAL BUCKSTAY ALONGSIDE A PINION WALL AT ONE LONGITUDINAL END OF A BATTERY OF HORIZONTAL COKING CHAMBERS AND INTERMEDIATE HEATING WALLS ARRANGED SIDE BY SIDE IN A ROW; A SECOND VERTICAL BUCKSTAY AT THE OTHER END OF THE BATTERY; A HOUSING SUPPORTED BY AND FIRMLY FIXED IN SAID FIRST BUCKSTAY AT THE LEVEL OF THE ROOF OF THE BATTERY TO TRANSMIT THRRUSTS TO THIS BUCKSTAY HORIZONTALLY; A TIE-ROD FIXED WITH SAID SECOND BUCKSTAY AND EXTENDING THROUGH TTHE ROFF OF THE BATTERY LONGITUDINALLY OF THE ROW THEREIN AND PASSING THROUGH SAID HOUSING; A SERIES OF SPRINGS LOCATED IN THE HOUSING AND DISPOSED IN FREELY ENCIRCLING RELATION WITH THE PORTION OF SAID ROD IN THE HOUSING FOR MOVEMENT THEREALONG AGANIST A PART OF SAID HOUSING, TO TRAMSMIT THRUSTS FROM SAID ROD TO THE HOUSING; AND ADJUSTING MEANS TO THE EXTERIOR OF THE HOUSING AND ACTING BETWEEN SAID ROD AND SAID SPRINGS TO EXERT VARIABLE THRUST ON THE SPRINGS AGAINST SAID HOUSING FOR TRANSMISSION OF THE THRUST TO SAID FIRST BUCKSTAY ALONGSIDE THE PINION WALL BY SAID HOUSING; SAID HOUSING BEING A HORIZONTAL TUBULAR MEMBER AND HAVING A TRANSVERSELY EXTENDING PLATE MEMBER AT ONE END IN POSITION TO RECEIVE THE THRUST FROM THE SPRINGS AND DISPOSED AGAINST THE PINION WALL OF THE OVEN IN THE REGION OF THE OVEN ROOF, AND SAID ADJUSTING MEANS INCLUDING A SLEEVE FREELY ENCIRCLING SAID ROD AND TELESCOPICALLY INSERTABLE IN THE HOUSING WITH A DISC BETWEEN THE END OF THE SLEEVE AND THE SPRINGS IN THE HOUSING TO CLOSE OFF THE SPACE BETWEEN THE SLEEVE AND THE HOUSING FROM THE ATMOSPHERE AND A SCREW CAP ADJUSTABLE ALONG THE OUTSIDE OF THE SLEEVE TO LIMIT THE EXPANSION MOVEMENT OF THE HOUSING RELATIVE TO SAID ROD.