Distillation: apparatus – Apparatus – Elements
Patent
1993-07-08
1995-06-06
Woodard, Joye L.
Distillation: apparatus
Apparatus
Elements
202227, 202228, C10B 3902, C10B 3912
Patent
active
054219639
DESCRIPTION:
BRIEF SUMMARY
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a national phase application corresponding to PCT/EP91/02515 filed 27 Dec. 1991 and based, in turn, upon a German application P 41 02 245.6 filed 24 Jan. 1991 under the International Convention.
FIELD OF THE INVENTION
The invention relates to a coke-feeding device with housing for a dry cooling installation for coke, which is assigned to a cooling shaft and comprises a stationary hopper with suction line, a movable hopper, a movable, liftable and lowerable cooling shaft closure, as well as the housing containing the movable hopper and the cooling shaft closure mounted on a common chassis running on rails.
BACKGROUND OF THE INVENTION
The drawback of this installation known from DE-OS 30 04 175 is that during the charging of the cooling shaft with glowing coke a particle separation occurs which leads to an uneven gas flow in the cooling shaft, resulting in a longer dwelling time. A further disadvantage is the additionally required sealing measures. Finally it is disadvantageous that the entire housing is so closely connected with the cooling shaft and the stationary hopper that during the coke charging operation, no air can enter the housing, which can result in a certain explosion risk for the suction line.
It is the object of the invention to provide coke-feeding device avoiding the drawbacks of the prior art, so that no separation occurs during the charging operation. Still another object is to provide a coke-feeding device with the improved ability to lift and lower the cooling shaft closure is the penetration of a certain amount of secondary air into the housing.
SUMMARY OF THE INVENTION
This problem is solved according to the invention by providing the movable hopper with a distribution bell and a liftable and lowerable sealing ring, as well as by integrating the movable cooling shaft closure equipped with a sealing ring in a lifting and lowering mechanism and by designing the housing as a hood with bottom clearance or with openings in the walls in order to allow a limited penetration of secondary air.
The apparatus according to the invention also provides fastening the distribution bell of the movable hopper to a pipe segment which is supported by a crossbeam.
According to another embodiment the distribution bell arranged in the movable hopper is fastened to a cross-shaped support. This structure allows smaller overall dimensions of the movable hopper and the housing.
Preferably the liftable and lowerable sealing ring moves guides and has a lever transmission consisting of lever arms fastened to shafts and weighted down with counterweights, whereby guide rollers arranged on the shafts cooperate with a cam plate in order to lift and lower the sealing ring.
According to a further embodiment the housing is made in two parts, whereby movable longitudinal and transversal sides are assigned to a stationary hood lid, the movable hopper and the cooling shaft closure being solidly integrated therein.
BRIEF DESCRIPTION OF THE DRAWING
The above and other objects, features, and advantages will become more readily apparent from the following description, reference being made to to the accompanying drawing in which:
FIG. 1 is a partially sectioned elevational front view of a coke-feeding
FIG. 2 is a partially sectioned elevational side view of the device shown in FIG. 1;
FIG. 3 is a view analogous to the one shown in FIG. 2 but with a cooling shaft closure shown in a sealing position;
FIG. 4 is the sealing ring arrangement for the movable hopper shown in a closed position;
FIG. 5 is the sealing ring arrangement for the movable hopper in an open position;
FIG. 6 is another embodiment of the device according to the
FIGS. 7 and 8 are respective side elevational views of the device shown in FIG. 6 with the shaft closure respectively in working and sealing positions;
FIG. 9 is an actuation device for the up and down movable sealing ring in a perspective view;
FIGS. 10 and 11 are perspective views of the device of FIG. 9 in raised and lowered positi
REFERENCES:
patent: 4092222 (1978-05-01), Kataoka et al.
patent: 4358345 (1982-11-01), Lorrek
patent: 4392919 (1983-07-01), Galow et al.
patent: 4508596 (1985-04-01), Weber et al.
Dunker Norbert
Kishigami Kazushi
Opdenwinkel Heinz
Stewen Wilhelm
Yasukouchi Naoto
Dubno Herbert
Kateshov Yuri
Nippon Steel Corporation
Ruhrkohle Aktiengesellschaft
Woodard Joye L.
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