RU1813780C - Apparatus for discharging coke from reactors of slow coking plants - Google Patents

Abstract

Usage: elimination of blockages when drilling a well in an array of coke. SUMMARY OF THE INVENTION: the device comprises a mobile trolley on which a vertical axis is mounted with levers of the pantographic system mounted, at one end of the pantographic system a table for the reactor cover, a nutrunner and a support platform are fixed, and a heat in the other. In order to reduce the duration of coke unloading and to reduce its overgrinding, the estrus is rotatable around its axis. It is equipped with a collector with nozzles for supplying water directed upward at different angles to the vertical within 5 ... 30 °. Geel.

Description

ate

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The invention relates to the field of oil refining, in particular to the equipment of delayed coking plants.

The purpose of the invention is to reduce the duration of unloading and to reduce re-release. crushed coke.

This goal is achieved in that in the device for unloading coke from the reactors of delayed coking plants, including a mobile trolley equipped with a vertically movable table with wrenches, a work platform and estrus, which are mounted on the levers of the pantographic system, the estrus is equipped with a collector with nozzles for supplying water directed upward at an angle of 5 ... 30 ° to the vertical, and is configured to rotate around an axis.

Such a design solution of the device allows the erosion of coke debris from the lower most unstable part thereof, which will reduce the overgrowing of coke and shorten its unloading time.

The inclination of the nozzles to the vertical at an angle of 5 ... 30 ° allows erosion of blockages formed at different distances from the flange of the lower neck of the reactor. In this case, the shafts installed with the greatest vertical inclination (30 °) ensure the elimination of obstructions formed in the lower hatch of the reactor, and the dumps installed with the smallest vertical inclination (5 °) serve to eliminate obstructions formed at a large distance from lower hatch.

 With a decrease in nozzle angle of less than 5 °, the power of 1 jet of water due to a decrease in nozzle length will be insufficient to destroy coke. With an increase in the nozzle inclination angle of more than 30 °, water jets will not fall above the lower hatch of the reactor.

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The rotation of the estrus with nozzles for supplying water ensures that high-pressure water jets impact the crushed coke around the entire perimeter of the reactor and allows finding its weakest points for crushing coke with minimal overgrinding.

In FIG. 1 shows a device for discharging coke from reactors of delayed coking plants at the moment of opening (closing) of the reactor cover, general view; in FIG. 2 also in position ready to discharge coke from the reactor.

A device for discharging petroleum coke from reactors of delayed coking plants comprises a mobile trolley 1 on which a vertical axis 2 is mounted with levers 3 of the pantographic system mounted on it. At one end of the pantogriff system, there is a mechanism for opening and closing the cover 4 of the lower hatch of the reactor 5, comprising a table 6 with wrenches 7 for opening the cover of the lower hatch and a platform 8 for service personnel, which are installed using pistons 9 and 1.0 in the hydraulic cylinders, working chambers 11 and 12 which are interconnected by a flow 13 with a shut-off valve 14. At the other end of the pantographic system, heaters 16 with a rotation mechanism 17 are installed in bearings 15, equipped with a manifold 18 with nozzles 19, each of which has its own angle ol tilt to the vertical within 5 .... 30 °, while the nozzle should not go beyond the dimensions of estrus.

The mobile carriage 1 is provided with a stationary estrus 20 for transferring coke from the estrus 16 to the reactor site.

The device operates as follows.

A trolley 1 is brought under a reactor 5 prepared for unloading so that the table 6 is located under the cover A of the lower hatch of the reactor. Workers become on the platform 8, and under their weight falls down, displaces the liquid from under the piston 9 of the chamber 11, which flows through the flow 13 into the chamber 12 under the piston 10. The latter raises the table b to the cover A. After that, the valve is closed 14 and wrenches 7 unscrew the studs, releasing the cover. Then, the workers descend from platform 8 and close the valve 14. Under the action of the mass of the lid and the water column in the reactor, the table b lowers, squeezing the fluid from the chamber 12 through the overflow 13 into the piston 10

chamber 11 for the piston 9, lifting the hydraulically connected platform 8. After the water drains from the reactor 5, table 6. with the cover 4 and estrus 16 are interchanged by turning them on the levers 3 around axis 2 through an angle of 180 ° . The collector 18 is connected to the water supply system for hydraulic cutting and high-pressure water jets flowing from the nozzles 19 cut the lower part of the well

in the coke mass. The remainder of the well is drilled in a known manner using a hydraulic cutter. In the process of unloading, the jox is poured over estruses 16 and 20 onto the pre-reactor site. When a blockage is formed in the lower neck of the reactor 5, it is brought down by jets of water flowing out of the nozzles 19, while the estrus 16 is rotated around the reactor just like when performing the well using the mechanism 17. After

releasing the coke from the reactor, close the lid 4 by performing the reverse operations of opening it.

Using the proposed device allows, compared with the prototype

to reduce the time for eliminating blockages formed in the lower part of the borehole, and to reduce the overgrowing of coke due to the action of water jets from the lower most unstable part. Reducing the crushing of coke also contributes to the implementation of the lower part of the borehole using the nozzles of the proposed device due to the fact that the nozzles of the proposed device will work in

 free mode, in: while in the prototype, the cutting nozzles of a hydraulic cutter operate in a flooded mode. Reducing the time to eliminate blockages ultimately leads to a reduction in unloading time

coke ..

Claims (1)

SUMMARY OF THE INVENTION A device for discharging coke from reactors of delayed coking plants, comprising a mobile axle carriage, on which the levers of the pantographic system are fixed with a possibility of rotation, on one end of which there is a table for the reactor cover, wrenches and a support platform, and on the other - estrus, characterized in that, in order to reduce the duration of the coke unloading process and reduce its overgrinding , estrus is rotatable around its axis and provided with a collector with water supply nozzles directed upward at different angles to the vertical within 5-30 °.