U.S. patent number 3,844,900 [Application Number 05/405,857] was granted by the patent office on 1974-10-29 for coking installation.
This patent grant is currently assigned to Hartung, Kuhn & Co. Maschinenfabrik GmbH. Invention is credited to Fritz Schulte.
United States Patent |
3,844,900 |
Schulte |
October 29, 1974 |
COKING INSTALLATION
Abstract
In a coking installation having a horizontal-chamber coke oven
battery, first rails extend along this battery and a coke guide car
is mounted on these rails for movement along the battery and
adapted to receive incandescent coke from the respective ovens. A
quenching car is mounted for movement along the battery also, and
is adapted to receive coke from the coke guide car for the purpose
of transferring the coke to a quenching station. Second rails
extend along the first rails at a side of the quenching car which
faces away from the coke oven battery. A supporting frame is
rollably mounted on the rails and has at least one arm portion
which passes freely around one end of the coke guide car, as seen
in the longitudinal direction of the rails, and which can be
releasably coupled with the coke guide car so that the frame and
coke guide car can move together along the battery of coke ovens. A
hood is carried by the supporting frame and extends at least in
part over the quenching car to intercept dust and gases which
become liberated from the coke.
Inventors: |
Schulte; Fritz
(Meerbusch-Buederich, DT) |
Assignee: |
Hartung, Kuhn & Co.
Maschinenfabrik GmbH (Dusseldorf, DT)
|
Family
ID: |
5859154 |
Appl.
No.: |
05/405,857 |
Filed: |
October 12, 1973 |
Foreign Application Priority Data
|
|
|
|
|
Oct 16, 1972 [DT] |
|
|
2250636 |
|
Current U.S.
Class: |
202/227; 202/263;
202/262 |
Current CPC
Class: |
C10B
33/003 (20130101) |
Current International
Class: |
C10B
33/00 (20060101); C10b 039/08 () |
Field of
Search: |
;201/39
;202/227,262,263,228,229,230 ;214/18PH |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Bascomb, Jr.; Wilbur L.
Assistant Examiner: Sanders; D.
Attorney, Agent or Firm: Striker; Michael S.
Claims
What is claimed as new and desired to be protected by Letters
Patent is set
1. In a coking installation having a horizontal-chamber coke oven
battery, an apparatus comprising first rail means extending along
said battery; a coke guide car mounted on said first rail means for
movement along said battery and adapted to receive incandescent
coke from the respective ovens; a quenching car mounted for
movement along said battery and adapted to receive coke to be
quenched from said coke guide car; second rail means extending
along said first rail means at a side of said quenching car which
faces away from said battery; a supporting frame rollably mounted
on said first and second rail means and having at least one arm
portion which at least in part passes freely around one end of said
coke guide car, said supporting frame being releasably coupled to
said coke guide car for movement with the same along said battery;
and a hood carried by said supporting frame and extending at least
in part over said quenching car
2. An apparatus as defined in claim 1, wherein portions of said
first and second rail means are horizontally movable at right
angles with reference to the remainder of said rail means, so that
said coke guide car and/or said supporting frame can be moved
relative to and become uncoupled from one another when supported on
said portions and being moved with the same.
3. An apparatus as defined in claim 1; further comprising rail
lengths extending normal to the elongation of said rail means and
removably intersecting the path of movement of said quenching car
and said
4. An apparatus as defined in claim 1; further comprising trolleys
mounting said supporting frame rollably on said rail means; and
wherein said trolleys and arm portion are movable out of the path
of movement of said
5. An apparatus as defined in claim 4, said arm portion having a
first part and a second part, the latter of which passes around
said one end of said coke guide car; and connecting means
releasably connecting said second
6. An apparatus as defined in claim 4; and further comprising at
least one crane adjacent said battery and positioned for lifting
said trolleys off
7. An apparatus as defined in claim 1; further comprising trolley
means mounting said supporting frame rollably on said rail means;
and wherein said arm portion comprises one part which passes freely
around said one end of said coke guide car, another part which is
mounted on said trolley means, and pivot means connecting said one
part pivotably with said other
8. An apparatus as defined in claim 1, said coke guide car having
opposite ends which are spaced longitudinally of said rail means;
said supporting frame having an additional arm portion which passes
freely around the other of said ends, and both of said arm portions
having free end sections; trolley means rollably supported on said
rail means; and journalling means connecting said free end sections
with said trolley
9. An apparatus as defined in claim 8, wherein said journalling
means comprises pivot elements each connecting one of said free end
sections with said trolley means for pivotal movement about a
horizontal pivot axis
10. An apparatus as defined in claim 8, said trolley means
comprising a pair of trolleys each associated with one of said end
sections; and wherein said pivot means comprises rollers having
rolling axes which extend in parallelism with said rail means, each
of said end sections being supported on one of said rollers for
horizontal movement transverse
11. An apparatus as defined in claim 1; further comprising a
carriage movable in the same path as said quenching car; and
fluid-pressure jacks engaging said supporting frame and engageable
with said carriage for
12. An apparatus as defined in claim 7; and further comprising
means on said hood for connecting the interior of the same to a
dust precipitator.
13. An apparatus as defined in claim 12; and further comprising a
dust precipitator mounted on said supporting frame and connected
with said
14. An apparatus as defined in claim 12; further comprising a
stationary dust precipitator remote from said supporting frame; and
a stationary conduit connected with said dust precipitator and
extending parallel to said rail means, said hood being connectable
with said conduit in a plurality of positions which said hood can
assume relative to said
15. An apparatus as defined in claim 14, said conduit having at
least two longitudinally spaced connecting openings which are
communicatable with the interior of said hood in respective ones of
said positions thereof.
16. An apparatus as defined in claim 15, wherein said openings are
of right-angular outline; and further comprising covers for closing
said openings when the same are not in communication with said
interior of said
17. An apparatus as defined in claim 16, wherein said covers are
mounted on said conduit for displacement between a first position
overlying and closing said openings, and a second position in which
they include an angle of substantially 70.degree. with the
longitudinal axis of said conduit.
Description
BACKGROUND OF THE INVENTION
The present invention relates generally to a coking installation,
and more particularly to a coking installation having a coke oven
battery wherein the individual coke ovens have horizontal coke
chambers.
It is already known from the prior art in coking installations
having horizontal-chamber coke oven batteries, to provide a coke
guide car and a hood which extends over at least part of the
quenching car which cooperates with the coke guide car, with both
the hood and the coke guide car being movable along the coke oven
battery so that the coke guide car can receive incandescent coke
from different ones of the horizontal chambers of the coke oven
battery. The purpose of the hood is to collect and render harmless
the substantial quantities of dust and gases which are liberated as
the coke is expelled from the respective chamber and transferred
via the coke guide car to the quenching car. It is, of course,
these quantities of dust and gas which are largely responsible for
polluting the open atmosphere at the coking side of coke oven
installations. Particularly the dust becomes liberated as the
incandescent coke cakes are pushed into the quenching car through
the coke guide which is provided on the coke guide car.
The prior art has not provided satisfactory solutions in this
respect, and in particular it has not provided any constructions
capable of preventing the escape of liberated dust and gases into
the ambient atmosphere.
SUMMARY OF THE INVENTION
It is, accordingly, an object of the present invention to overcome
the disadvantages of the prior art.
More particularly, it is an object of the present invention to
provide, in a coking installation having a horizontal-chamber coke
oven battery, an apparatus which avoids the aforementioned
disadvantages.
Still more particularly, it is an object of the invention to
provide such an apparatus which is capable of intercepting the
liberated dust and gases and of preventing them from escaping into
the ambient atmosphere.
Another object of the invention is to provide such an improved
apparatus wherein the weight of the various elements, such as the
coke guide car, the quenching car, the hood and the hood supporting
frame, are more evenly distributed.
A further important object of the invention is to provide such an
apparatus wherein it is possible to utilize the hood independently
of the coke guide car, or to utilize the coke guide car
independently of the hood, if and when this becomes necessary, for
instance if one or the other of these components must be repaired
or inspected.
In keeping with the above objects, and with others which will
become apparent hereafter, one feature of the invention recites, in
a coking installation having a horizontal-chamber coke oven
battery, an apparatus which comprises first rail means extending
along the battery, and a coke guide car mounted on the first rail
means for movement along the battery and adapted to receive
incandescent coke from the respective ovens. A quenching car is
mounted for movement along the battery and adapted to receive coke
to be quenched from the coke guide car. Second rail means extend
along the first rail means but at a side of the quenching car which
faces away from the coke oven battery. A supporting frame is
rollably mounted on the first and second rail means and has at
least one arm portion which at least in part passes freely around
one end of the coke guide car, as seen with respect to the
elongation of the rail means, and which supporting frame is
releasably coupled to the coke guide car for movement with the same
along the battery. A hood is carried by the supporting frame and
extends at least in part over the quenching car in order to
intercept dust and gases which become liberated from the coke.
To permit a ready disengagement of the supporting frame and the
coke guide car from one another, it is advantageous if the frame
and/or the guide car are movable at right angles to the elongation
of the coke oven battery, in a horizontal plane, together with
certain portions of the rail means on which they are supported.
This makes it possible for the supporting frame to be used
independently of the coke guide car, or for the latter to be used
independently of the supporting frame, while the other one is being
inspected or overhauled for maintenance.
Coke guide cars are known from experience to require maintenance at
shorter intervals than the mobile hood which is carried on the
supporting frame. For this reason it is generally satisfactory to
provide only a single hood for every two coke guide cars. Thus,
while one of the cars is out of service the other can be used in
conjunction with the hood and the supporting frame therefor. It is
advantageous to provide separate supports for the supporting frame
on the gallery associated with the coke oven battery, because this
permits a load distribution enabling the novel apparatus to be used
both in new coke batteries and to be added to existing batteries
without increasing the load-bearing capacity of the gallery.
Another advantage of the possibility of separating the supporting
frame from the coke guide car is the fact that both of these
components (including, of course, the hood which is mounted on the
supporting frame) become more readily accessible and more easier to
maintain than is otherwise the case.
According to one embodiment of the invention it is possible to
provide lengths of rails which extend at right angles to the
elongation of the coke oven battery and which can be mounted so
that they are removable but can be put in place extending at right
angles to the elongation of the battery when it is desired for the
coke guide car and/or the supporting frame to be moved toward or
away from the coke oven battery.
The supporting frame may be mounted on the rails by means of
trolleys, and the latter may be made movable out of the path of the
coke guide car, together with parts of the supporting frame. The
arm portion or arm portions which at least in part pass freely
around one or both ends of the coke guide car, may have that part
which overlaps the respective end of the coke guide car releasably
connected with the remainder of the respective arm portion. In this
case it is advantageous to provide at the coke side of the battery
at least one crane or similar lifting instrumentality, in order to
lift up the trolleys off the rails.
Another way of removing the trolleys out of the path of the coke
guide car involves pivotably connecting parts of the one or two arm
portions overlapping the opposite ends of the coke guide car, with
the remaining parts of the respective arm portions. The ends of
these arm portions may advantageously be pivotably supported on the
trolleys themselves, and this may be done by means of respective
pivot pins extending horizontally and in parallelism with the
elongation of the coke oven battery. The free ends of these arm
portions may be supported on two trolleys, each being supported on
a respective trolley by horizontal bearing rollers extending in
parallelism with the elongation of the coke oven battery, and the
arm portions may be horizontally movable in parallelism with the
elongation of the oven chambers, that is in direction substantially
normal to the elongation of the coke oven battery.
In the aforementioned instances, where the trolleys themselves are
to be moved out of the path of the coke guide car together with
parts of the arm portions, it is advantageous if fluid pressure
operated jacks are provided for the supporting frame, being
themselves supported on a carriage that is movable along the track
on which the quenching car travels.
It is also advantageous to make the hood connectable with an
extraction and dust precipitation device. The latter may be mounted
directly on the supporting frame which also supports the hood.
However, it is also possible to arrange the extraction device
remote from or in the general vicinity of the apparatus, and to
connect it with a fixed conduit which extends in parallelism with
the elongation of the coke oven battery and with which the hood can
be connected. The cross section between the hood and the conduit
can be made considerably larger than would otherwise be possible
if, according to a feature of the invention, the hood is
connectable with the conduit in each of its operating positions (in
which it is located adjacent one of the horizontal chambers) with
at least two apertures of the conduit. These apertures are normally
closed and are spaced from one another in the direction of
elongation of the conduit. It is advantageous if they are of
right-angular cross section and provided with covers which open
externally in one and the same direction. The opening angle
included by the covers with the longitudinal axis of the conduit is
preferably about 70.degree., because such a position of the covers
is most favorable to the flow of extracted gases and dust.
The novel features which are considered as characteristic for the
invention are set forth in particular in the appended claims. The
invention itself, however, both as to its construction and its
method of operation, together with additional objects and
advantages thereof, will be best understood from the following
description of specific embodiments when read in connection with
the accompanying drawing.
BRIEF DESCRIPTION OF THE DRAWING
FIG. 1 is a side view of an apparatus according to the present
invention, as seen from a side remote from the coke oven battery
which should be understood to be located behind the apparatus in
this Figure;
FIG. 2 is a plan view of the apparatus shown in FIG. 1,
illustrating a U-shaped supporting frame;
FIG. 3 is an end elevational view of the apparatus in FIGS. 1 and
2, as seen in the direction of the arrow in FIG. 1, showing a part
of the coke oven battery in cross section;
FIG. 4 is a partially broken-away elevational view of a further
embodiment of the invention;
FIG. 5 is a side view of the apparatus shown in FIG. 4;
FIG. 6 is a plan view of the apparatus in FIGS. 4 and 5, showing it
in its starting position;
FIG. 7 is a further plan view of the apparatus in FIG. 4, with a
mobile platform shown in its initial position;
FIG. 8 is a plan view of the apparatus according to the present
invention, showing the coke guide car on a mobile platform;
FIG. 9 is a section taken on line IX--IX of FIG. 8;
FIG. 10 is a side view of a further embodiment of the
invention;
FIG. 11 is a plan view illustrating an additional embodiment of the
invention;
FIG. 12 is a side view of FIG. 11;
FIG. 13 is a side view of still an additional embodiment of the
invention;
FIG. 14 is an elevational view, as seen from a side remote from the
coke oven battery, of a further embodiment of the apparatus;
FIG. 15 is a plan view of the apparatus shown in FIG. 14;
FIG. 16 is an end elevational view of the apparatus in FIGS. 14 and
15, illustrating part of the coke oven battery in section;
FIG. 17 is a section taken on line XVII--XVII of FIG. 16;
FIG. 18 is an enlarged-scale elevational view, showing a joint
between the supporting frame and the trolleys in the apparatus of
FIGS. 14 and 15; and
FIG. 19 is an enlarged-scale elevational view, illustrating a
further embodiment of the invention, namely a pivotable support for
the supporting frame on the trolleys.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring now firstly to the embodiment illustrated in FIGS. 1-3,
it will be seen that FIG. 3 shows a portion of a coke oven 1 having
end frames 2 which, as shown in FIG. 2, flank a horizontal coke
oven chamber 3. The latter is provided at each end with a gate of
which only the gate 4 on the coke side is shown in FIG. 2. A door 5
is provided which can be removed from the gate 4 to open it, or can
be put in place to close it.
Reference numeral 6 identifies a conventional inspection gallery
which extends parallel to and in front of the coke oven and which
is provided with a pair of rails 7. A coke guide car 8, which is
also shown in FIG. 7, is provided with a chassis 9 and with wheels
10 which, as shown in FIG. 1, are supported on the rails 7 so that
the coke guide car 8 can move along the rails 7 at right angles to
the axis of the oven chamber 3. In other words, the coke guide car
can move along the battery of coke ovens, of which a number are
arranged side by side with the axes of their respective oven
chambers 3 extending parallel to one another. A quenching car 11
can move in parallelism with the elongation of the coke oven
battery in front of the gallery 6, to receive hot coke from the
coke guide car 8 through which it is in turn expelled from the
respective chambers 3, and to convey this coke to the
non-illustrated quenching station. FIGS. 1 and 2 show that an
additional rail 12 extends along the rails 7, at a side of the
quenching car 11 which faces away from the coke oven battery. A
supporting frame 34 for an extraction hood 31 is supported on the
rails 7 and on the rail 12.
FIG. 3 shows a coke guide 13 mounted on the coke guide car 8 and
composed of stiffening sections 14 to which horizontally extending
U-shaped beams are attached one above the other, forming spaced
parallel side walls 15 and 16 which are seen in FIG. 2 to extend
from the long sides of a guide trough 17 which is most clearly
evident in FIG. 3. Portions 15a and 16a of the side walls 15 and 16
face the coke ovens 1, with a guide trough portion 17a connecting
the portions 15a and 16a. These portions 15a and 16a can be moved
backwards and forwards only parallel to the axis of the oven
chamber 3. The front side wall portions 15a and 16a are connected
pivotably with rear side wall portions 15b and 16b by means of
vertically aligned pivot bearings 18 and 19. In the cross-sectional
plane containing the pivot bearings, the guide trough 17 is also
divided so that the front trough portion 17a extends over the same
length as the front side wall portions 15a and 16a, whereas the
separate rear guide trough portion is divided along its central
longitudinal axis so that respective longitudinal halves 17b and
17c of the same length as the rear guide wall portions 15b and 16b
can be pivoted with the latter out of direction parallel to the
oven chamber axis into planes extending in the direction of the
guide car travel, as shown in FIG. 2.
FIG. 2 shows the coke guide in its retracted idle position, in
which its front edge is clear of the space in front of the oven
chamber 3 approximately half way across the coke guide car 8. This
permits operators to walk safely over the gallery 6 from one side
of the coke guide car 8 to the other.
A carriage 22 is movable backwards and forwards in parallelism with
the ovens 1 and is provided with a pivot 23 to permit horizontal
turning of a door handling arm 24. The carriage 22 is part of a
door handling mechanism 20 and the outside of the arm 24 is
provided with hooks 24 capable of engaging, when operated by means
of a non-illustrated jack, under cross pieces 26 which are provided
on the respective doors 5. In this manner, the doors can be carried
to a cleaning device 27 provided on the coke guide car 8, as shown
in FIG. 2. Such cleaning devices are themselves known, as is the
manner of making them movable parallel to the direction of
advancement of the coke guide car 8, so that for instance scrapers
on chains can clean the seating surfaces on the doors 5 with which
the doors engage the frame bounding the respective opening.
The door frame bounding the opening must itself also be cleaned of
carbon deposits and the like. For this purpose the apparatus
includes a door frame cleaner 21 which in itself is already known
from the prior art and which includes a carriage 28 on which an arm
29 having L-shaped horizontal cross section is pivotable about
mutually vertically aligned pivot pins 30. The cleaner 31 can be
pushed forward to its working position after the arm 29 has been
pivoted to operative position, in which it is directed towards the
door frame of the open oven chamber 3. By means of the guide car 8
described, therefore, all of the work required on one oven chamber
3 can be carried out in a single operative position of the guide
car 8.
The drawing shows in FIGS. 1-3 that a hood 31 is provided which is
located slightly above the upper edge of the quenching car 11. The
hood 31 includes a pyramid-shaped portion 31a and a second portion
31b which extends from the portion 31a in substantially horizontal
direction towards the non-illustrated quenching station. A
framework 32 and 33 connects the hood 31 with a supporting frame 34
which, as seen in FIGS. 2 and 6, has in these embodiments a
U-shaped outline. In other words, in horizontal direction and seen
in top plan view, the supporting frame 34 is U-shaped. It has arm
portions 34a and 34b which pass freely around the ends of the coke
guide car 8, which is to say that they overlap these ends, and the
ends of course being those which extend in the direction of
elongation of the coke oven battery and of the rails. The arm
portions 34a and 34b can be engaged with these ends of the coke
guide car 8, so that the frame 34 and the car 8 can move in unison,
but the engagement is separable so that the frame 34 and/or the car
8 can also be permitted to move independently of one another.
The ends of the arm portions 34a and 34b are supported in this
embodiment on respective trolleys 35 and 36 which are provided with
wheels 37 on which they can roll on the rails 6. FIG. 1 shows that
pivots 38 are provided, the elongation of which is parallel to the
elongation of the coke oven battery and which provide a connection
between the trolleys 35 and 36 and the free ends of the arm
portions 34a and 34b, respectively. The trolleys 35 and 36 are
provided with electric motors (not shown) which are synchronized
with drive motors 39 driving the wheels 40 of the frame 34, with
which the latter is supported on the rail 12. The wheels 40 are
fixed to the bottom end of a vertical frame part 41 which supports
the end of the frame 34 remote from the coke oven battery and which
assures that the frame 34 is in a horizontal position. Thus, the
motion of the frame 34 longitudinally of the coke oven battery 1 is
synchronized with that of the guide car 8 which is located between
the arm portions 34a and 34b and moves with the frame 34 due to its
engagement with the respective arm portions.
FIG. 4 shows a further possibility according to the present
invention, wherein the wheels 40 of the frame 34 are aligned with
the wheels 37 of the trolleys 35 and 36, so that only the wheels 40
are visible. In this embodiment, of which FIG. 5 shows a side view,
the pairs of wheels 37 are supported on two gallery portions which
are separated from one another by a distance corresponding to the
spacing between the two trolleys 35 and 36. The gallery portions
are configurated as mobile platforms 6a and 6b. There are further
provided mobile platforms 56a and 56b which support the wheels 40
of the frame 34. The platforms 56a and 56b are aligned with the
platforms 6a and 6b, respectively, and run on tracks 58 by means of
wheels 57. The tracks are located horizontally and extend normal to
the longitudinal axis of the coke oven battery. This means that
they extend in parallelism with the axes of the respective oven
chambers 3. The tracks 58 are supported on uprights 59a and 59b,
and track lengths 58a of the tracks 58 cross the path of the
quenching car 11. These are removably mounted on brackets 60.
In this embodiment, when the coke guide car 8 requires changing,
repairing or inspection, the frame 34 is moved from the position
shown in FIG. 6 and at right angles to the longitudinal direction
of the coke oven battery, into the position shown in FIG. 7 on a
shunting siding 73 extending in parallel with the elongation of the
coke oven battery. After the coke guide car 8 has been removed, a
replacement guide car 71 can be moved into its place after the
mobile platform has previously been returned to its initial
position with respect to the frame 34. After the mobile platforms
which have been moved out of the path of the car 8 have been
bridged with suitable lengths of rail, the guide car 8 can be run
out beyond one end of the battery of coke ovens, and another guide
car substituted for it. The lateral movement of the frame 34 which
is possible in this embodiment, makes it also possible for the
frame 34 to be moved away in this manner for maintenance,
inspection or possibly replacement by another frame 34.
The position of the frame 34 when the latter is separated from the
guide car 8, is shown in chain lines in FIG. 5. The elements
belonging to the coke guide car 8 have been omitted in this Figure
from the chain line portion for clarity. Shifting of the mobile
platforms may be carried by means of fluid-pressure operated
actuators, racks, cables or the like, to name some possible
examples of means which are already known and therefore not
illustrated.
Coming to FIGS. 8 and 9 it will be seen that these show a mobile
platform 66 for the coke guide car 8, located outside one end of
the coke oven battery as part of the gallery track. This platform
66 is supported on wheels 67 which are driven by a motor 68 and
roll on a track 69, paralleling the elongation of the coke oven
battery. Thus, the platform 66 can be moved to a position in front
of the end of the coke oven battery, so that the guide car 8 can be
shunted along a track 70 extending parallel to the gallery track
and onto a siding platform. Thereafter, a replacement coke guide
car 71 can be brought from a shunting siding 72 which parallels the
track 70 and be moved into line with the gallery track by means of
the platform 66.
A further embodiment of the invention is illustrated in FIG. 10
which shows that the ends of the arms of the frame 34 may be
pivotably supported on the trolleys. The free end 34c of the arm
34a is flanged to the trolleys at 61 at a location spaced outwardly
from the gallery, so that when the flange connection is disengaged
a crane 62 provided on the coke oven battery or adjacent to it can
lift the trolley 35, with one half 61a of the flange connection and
with the end 34c of the arm 34a, into the position shown in FIG.
10. Previous to this, the supporting frame 34 is supported on the
top edge of the quenching car by means of a fluid-pressure operated
jack 63. This means that after one or both of the arms 34a, 34b
with the associated trolley has been removed, the coke guide car 8
can be moved out of the embrace of the frame 34 for repair,
inspection or replacement.
A further possibility is shown in the embodiment illustrated in
FIGS. 11 and 12. Here, the trolleys are pivotably connected with
the ends of the arms 34a, 34b by means of spaced pivots 62a and 62b
which extend parallel to the elongation of the coke oven battery.
The ends 34e and 34f of the arms are pivoted on vertical pivots 64a
and 64b which are far enough outside the gallery 6 for the trolleys
35 and 36 to clear the path of movement of the guide car 8 when
they are in their inoperative positions parallel to the
longitudinal axis of the gallery 6 which is shown in chain lines in
FIG. 11. A jack 63 is again provided for performing the necessary
pivoting movement after the trolleys have been uncoupled from the
guide car 8. FIG. 12 shows that the free end 34e is forked and
extends over part of the arm 34a, to which it is connected by the
pivot 64a in such a manner as to allow only outward pivoting of the
trolley and of the free end of the arm.
In FIG. 13 I have shown an embodiment wherein one end 34b of the
arm 34a of the supporting frame 34 can pivot about a horizontal
pivot 65 which is parallel to and spaced with reference to the coke
oven battery. The free end 34g is again pivotably connected to the
trolley 35 by means of horizontal pivot 62a. It is shown in chain
lines in its normal position in which it is supported on the
gallery 6. Here, again, the pivoting can be carried out after the
frame 34 has been supported by the jack 63. The pivot 65 is far
enough spaced from the coke oven battery to prevent the trolley 35,
when pivoted upwardly, from interfering with the free motion of the
guide car 8 along the rails 7 on the gallery 6. In the normal
operative position, that end of the portion 34g which is remote
from the trolley 35 engages in an L-shaped recess 34h which is
formed in the arm 34a. In this manner, the free end 34g can be
anchored as an extension of the arm 34a by suitable means, for
example by means of screws, bolts or the like.
In the preceding embodiments the pyramid-shaped portion 31a of the
hood 31 is somewhat higher than the coke guide 13, and its upper
portion is provided with an extraction aperture on the side remote
from the extension portion 31b. This aperture is connected via a
conduit 42, shown in FIG. 2, to three steam jet dust precipitators
43a, 43b and 43c. Such precipitators are already known, and are
clearly described in German Offenlegungsschrift 2,021,863 to which
reference may be had for details of their construction.
The hood 31 is provided with an additional extraction aperture on
the side facing the portion 31b, namely in the upper portion of the
pyramid-shaped portion 31a, and this additional aperture is
connected by means of conduit 34 to two steam jet dust
precipitatios 45a and 45b similar to the previously mentioned
ones.
Two extraction apertures 46a and 46b which are arranged one behind
the other as seen in the direction of the arrow y shown in FIG. 2,
are connected one behind the other by an extraction conduit 47 to
two steam jet dust precipitators 48a and 48b. The portion 41b of
the hood 31 is only about one-quarter as high at the coke guide,
but is high enough to collect the lower dust concentrations which
are still released from the coke charge after the same has been
lying on the quenching car for some time already, and to be able to
remove them by means of the extraction conduit 47. This makes it
possible to move the hood as well as the quenching car towards the
quenching tower, and to collect, extract and clean all dust and gas
which is subsequently released.
A steam jet dust precipitator 49 shown in FIGS. 1-3 is connected by
way of an extraction conduit 50, which enters the upper portion of
the hood portion 31a on a side remote from the coke guide car, and
by way of another extraction duct 51 which seal off the top of the
coke guide, to an annular duct which is described in detail in the
aforementioned Offenlegungsschrift, when the apparatus is in
operative position. FIG. 2 shows that when the coke guide 13 is in
its idle position, the portions 15b and 16b or 17b and 17c remote
from the coke oven battery are retained inside the hood 31 in their
position parallel to the battery, together with the rear end of the
front portion 17a of the coke guide. In the operative position of
the coke guide which is shown in FIG. 3, the coke guide forms a
closed duct for the incandescent coke cake in which the latter can
move between the oven chamber 3 and the hood 31 and the quenching
car.
In the embodiment in FIGS. 14-17, the hood 31 can be connected to a
stationary extraction conduit 75 which is laid on and fixed to
cross beams 76 on top of the coke oven battery. This is in contrast
to the arrangement shown in FIGS. 1-3. The cross beams 76 are
attached to upwardly extending vertical sections 77 which may be
formed on or by the end frames 2 of the respective ovens 1.
Since the hood must be connected in communication with this fixed
conduit 75, the hood is formed as an irregular truncated pyramid
portion 31a having an upward extension 78, as shown in FIG. 16, and
has a sloping vertical section and a rectangular cross section. The
extension 78 is supported level with an upper platform 79 by a
scaffold 80. At the height of the horizontal joint 81 of this
upward extension 78 and the pyramid-shaped portion 31a of the hood
31, a shallow and downwardly open hood 82 extends in front of the
hood 31 towards the coke oven battery. The width of the hood 82
corresponds approximately to the width of two laterally adjacent
ones of the coke ovens 1. The shallow hood 82 is releasably but
rigidly connected (means for this are not shown, but are
conventional) to a scaffold 83 of the coke guide; it is
telescopically movable by means of a tubular rear extension 84
which permits its movement relative to a pipe 85 of the upper
extension 78. This means that when the coke guide 13 is pushed
against an oven gate, the front edge parallel to the oven battery
comes to bear above the oven gates and, as a result, the
dust-containing gases produced when the incandescent coke cake is
pushed from the chamber 3 into the coke guide 13, and possibly also
as it is pushed out of the coke guide, are extracted through the
shallow hood 82 into the upper extension 78.
FIGS. 14-17 also show that the extension 78 is formed with a
horizontal offset mouth 86 which is of rectangular cross section
and open towards the conduit 75. Parallel linkages 78 and 88 at the
sides of the mouth 86 can be pivoted by vertical pivots 89 and 90
which are attached to opposite sides of the mouth and are
articulated at the ends of guide levers 91 and 92 on spaced guide
rods 93 and 94 which parallel one another and the oven chambers and
which are articulated at their front ends on a telescopic member
95. The latter can be moved backwards and forwards parallel to the
oven chambers in the mouth 86 by means of the parallel linkages 87
and 88. It can therefore be pushed forward onto the fixed conduit
75.
In each operative position of the apparatus, the mouth 86 extends
over two of the lids or covers 96 which are associated with the
conduit 75 and are all arranged side-by-side at the same height and
can all turn on vertical pivots 97 on their same sides, the right
ones in the illustrated embodiment. The upper end of each pivot 97
is provided with a lever 98 and with a member 99 which projects
from the end of the lever 98 and is gripped from the side by forks
100 mounted on a parallel operating rod 101 when the parallel
linkages 87 and 88 are in their forward position. The rod 101 is
mounted horizontally in two members 102 on the telescopic member 95
and can be adjusted parallel to the coke oven battery by means of a
hydraulic cylinder 103. The rear end of the guide rod 93 is
connected to the piston of a hydraulic cylinder 104 whose rear end
in turn is articulated to the upper extension 78 by means of a
pivot 105, permitting it to swivel horizontally.
It will be appreciated that when the hydraulic cylinder 103 is
operated, two of the lids 96 on the conduit 71 will swing in unison
through approximately 70.degree. into the telescopic member 95 and
mouth 86, so that they extend approximately parallel to the lateral
surfaces of the mouth 86. Because the latter is horizontally offset
relative to the extension portion 106 immediately above the hood
portion 31a, the dustcarrying gases which are extracted will thus
be able to satisfactorily flow without interference. The remaining
lids of the conduit 75 are, of course, closed at this time, as FIG.
15 shows, so that there is no risk of suction losses. The
relatively large rectangular cross section of the conduit 75, which
is clearly shown in FIG. 16, also assures sufficient suction.
The joint between the trolley 35 and the arms 34a, 34b of the
supporting frame 34 is more clearly shown in an enlarged-scale view
in FIG. 18. It will be seen to comprise in this embodiment a
horizontal pivot pin which extends parallel to the elongation of
the coke oven battery and which connects the upper end of a support
block 116 to lugs 107 which project around the two sides of the
block 116 and are attached to the underside of the outer end of
each arm 34a and 34b, respectively.
FIG. 19, finally, shows a somewhat modified embodiment analogous to
that of FIG. 18. In FIG. 19, a guide 108 of U-shaped cross section
is arranged parallel to the axis of the oven chambers 3 on top of a
support block 109. Laterally, there are provided upwardly
projecting guides plates 110 and a bearing roll 111 in the recess
in the guide 108 is freely rotatable about a horizontal axle 112
paralleling the elongation of the coke oven battery and extending
through the outer ends of the arms 34a, 34b of the frame 34. With
this construction, the trolleys can be lifted out from under the
frame 34 independently of the frame, for example for purposes of
maintenance or inspection, as soon as jacks 63 have been actuated
to raise the free ends of the frame 34 far enough so that the
bearing rails 111 can be lifted out of the guide 108.
It will be appreciated that in the various descriptions of the
preceding embodiments it should be understood that any components
which have the same reference numerals as those in FIGS. 1-3,
correspond to the analogous components shown in FIGS. 1-3. Insofar
as any components which have been shown in FIGS. 1-3 have been
omitted in the succeeding embodiments, and are not replaced by
other different components, they should be understood to be present
in the succeeding embodiments also.
It will be understood that each of the elements described above, or
two or more together, may also find a useful application in other
types of constructions differing from the type described above.
While the invention has been illustrated and described as embodied
in a coking installation, it is not intended to be limited to the
details shown, since various modifications and structural changes
may be made without departing in any way from the spirit of the
present invention.
Without further analysis, the foregoing will so fully reveal the
gist of the present invention that others can by applying current
knowledge readily adapt it for various applications without
omitting features that, from the standpoint of prior art, fairly
constitute essential characteristics of the generic or specific
aspects of this invention and, therefore, such adaptations should
and are intended to be comprehended within the meaning and range of
equivalence of the following claims.
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