US2761160A - Coke removal drilling rig - Google Patents

Description

p 4, 1956 c. E. MANNING COKE REMOVAL DRILLING RIG Filed Aug. 16. 1952 V /4J i R 5. 4% a; L

United States Patent COKE REMOVAL DRILLINGRIG f Clyde E. Manning, Covingtou, Ky., assignor to The Standard Oil Company, Cleveland, Ohio, a corporation of Ohio Application August 16, 1952, Serial No. 304,820 4 Claims. (Cl. 15--104.07)

In operations on hydrocarbon material, such as in the cracking of petroleum, there is an accumulation of caked coke in chambers or drums in which the high temperature soaking operation occurs. Originally in the use of such apparatus, after cooling down, the bottom plate was removed and workmen had to progressively cut out the coke, entering from below. such hand operation, it has been proposed to project a mechanical loosener up into the coke mass, the loose-uer being projected by a hydraulic ram. Such arrangement required a ram cylinder and plunger which in many cases would be of such a length as to be prohibitive. In the present invention, while the advantages of a ram drive are had, the arrangement is such that a relatively short piston rod suflices, and the equipment has wide versatility. Other objects and advantages will appear from the following description.

To the accomplishment of the foregoing and related ends, said invention then comprises the features hereinafter fully described and particularly pointed out in the claims, the following description and the annexed drawing setting forth in detail certain illustrative embodiments of the invention, these being indicative, however, of but a few of the various ways in which the principle of the invention may be employed.

In said annexed drawing:

Fig. l is a side elevational view of apparatus embodying the invention, and

Fig. 2 is a similar view of a modification.

In general, the apparatus involves a chamber or drum in which heated oil is subjected to action involving cracking of hydrocarbons and which results in a deposit of coke, and spaced below is a hydraulic cylinder, ordinarily positioned below the floor level, and the piston rod is movable toward the chamber, and interposable at the upper end of the rod sections of extension may carry the coke-loosening tool, while in order to permit insertion and removal of such extension sections, a support is in position to hold up the coke loosening tool and attached sections while another section is being placed.

As seen by reference to Fig. l, the coke accumulating chamber or drum C is positioned over a ram cylinder 2 which is below the floor level, and the piston rod 3 thence may travel up and down toward the chamber C to project the coke-loosening tool 4. Insertable sections 5, of various lengths in accordance with particular requirements, are interposable between the upper end 6 of the ram and the lower end of the coke-loosening means and sections holding it. Laterally at the bottom of the chamber C a bracket 8 at one side provides a means for mounting a lever S pivotally at 9. One end of this lever is bifurcated or forked as at 10, to position under a holding flange 7 for this purpose on the lowest section which holds the coke-loosening means, and the other end 11 is manipulatable to swing the forked end into and out of position to engage under the flanged end 7 of the coke-loosening tool section. As considerable energy is required for the lever, fluid-pressure means is provided,

In later substitution of and this is in the form of an air hoist 12, of conventional type, having a take-up pulley 13 and cable 13' connecting through floor pulleys 15 to the lever end 11. The air hoist is carried by a trolley 14 which is movable on a the end of the excursion permitted by the piston rod length ,is reached, the lever S is swung with its bifurcated ,end 1!) under the flange 7 of the loosening tool, and on removing the connecting bolts between the ,fianged lower end of the loosening tool and the adjacent end of the piston rod, the piston rod may be lowered and an insert extension section 5 be interposed, while the coke loosening toolis held up byengagement of the fork 10 under flange 7; the air hoist 12 having been actuated to draw and hold the lever end to carry the loosening tool. weight. Where the connection between the piston rod and adjacent sections, instead of by a flanged point, is by a breech lock type arrangement of lugs on the flanges and a bolt preventing accidental opening, the disconnecting of a joint and the connecting up of another section is carried out similarly. The cable can then be payed out and the lever swung manually by the operator out of position, whereupon the coke-loosening tool can be forced further up into the coke.

Where space requirements make it advisable, as shown in Fig. 2, the lever S mounted as in Fig. 1, may have its fluid-pressure operating means in the form of a cylinder 12' pivoted at its upper end to a suitable support 20, and having its piston rod 14 pivoted at its lower end 21 to the lever end 11. In this, the lever S may be positioned to support the coke-loosening tool, as shown in full line in Fig. 2, and the lever may be tilted out of engaging position, as shown in dotted lines. The operation of placing extension sections for the hydraulic ram plunger is the same as described foregoing.

Other modes of applying the principle of the invention may be employed, change being made as regards the details described, provided the features stated in any of the following claims, or the equivalent of such, be employed.

I therefore particularly point out and distinctly claim as my invention:

1. In combination with a coke-accumulating chamber having a fluid-pressure ram spaced therebelow, cokeloosening means adapted to be driven by said ram up into the chamber, and extension sections interposable between said ram and said coke-loosening means for interconnecting the same; a bracket at the bottom of the cokeaccumulating chamber at one side thereof, lateral projections carried by said coke-loosening means and said extension sections, a lever pivoted to said bracket for swinging movement in a vertical plane including the common axis of said coke-loosening means and extension sections so as to engage therewith, said lever having a bifurcated end to swing in to support the coke-loosening means by engagement with such lateral projection thereof or with a lateral projection of a previously inserted section, fluid-pressure operating means for the lever, and a cable connecting said fluid-pressure means and the lever.

2. In combination with a coke-accumulating chamber having a fluid-pressure ram spaced therebelow, cokeloosening means adapted to be driven by said ram up into the chamber, and extension sections interposable between said ram and said coke-loosening means for interconnecting the same; a bracket at the bottom of the lowered position, the

coke-accumulating chamber at one side thereof, lateral projections carried by said coke-loosening means and said extension sections, a lever pivoted to said bracket for swinging movement in a vertical plane including the loosening means adapted to be driven by said ram up into the chamber, and extension sections interposable between said ram and said coke-1oosening means for interconnecting the same; a bracket at the bottom of the coke-accumulating chamber at one side thereof, a support pivoted to said bracket for swinging movement about a substantially horizontal axis and into and out of the path of said sections, such pivotal support carrying means operative to engage and independently support the cokeloosening means, thereby to permit insertion of such an extension section, and fluid-operated means for holding said support.

4. In combination with a coke-accumulating chamber having a fluid-pressure ram spaced therebelow, cokeloosening means adapted to be driven by said ram up into the chamber, and extension sections interposable between said ram and said coke-loosening means for interconnecting the same; a bracket at the bottom of the coke-accumulating chamber at one side thereof. a support pivoted to said bracket for swinging movement about a substantially horizontal axis and into and out of the path of said sections, such pivotal support carrying means operative to engage and independently support the coke-loosening means, thereby to permit insertion of such an extension section, and means for moving said support transversely to and axialwise with respect to said sections.

References Cited in the file of this patent UNITED STATES PATENTS

Claims (1)

1. 3. IN COMBINATION WITH A COKE-ACCUMULATING CHAMBER HAVING A FLUID-PRESSURRE RAM SPACED THEREBELOW, COKELOOSENING MEANS ADAPTED TO BE DRIVEN BY SAID RAM UP INTO THE CHAMBER, AND EXTENSION SECTIONS INTERPOSABLE BETWEEN SAID RAM AND SAID COKE-LOOSENING MEANS FOR INTERCONNECTING THE SAME; A BRACKET AT THE BOTTOM OF THE COKE-ACCUMULATING CHAMBER AT ONE SIDE THEREOF, A SUPPORT PIVOTED TO SAID BRACKET FOR SWINGING MOVEMENT ABOUT A SUBSTANTIALLY HORIZONTAL AXIS AND INTO AND OUT OF THE PATH OF SAID SECTIONS, SUCH PIVOTAL SUPPORT CARRYING MEANS OPERATIVE TO ENGAGE AND INDEPENDENTLY SUPPORT THE COKELOOSENING MEANS, THEREBY TO PERMIT INSERTION OF SUCH AN EXTENSION SECTION, AND FLUID-OPERATED MEANS FOR HOLDING SAID SUPPORT.

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