CA1109414A - Coke oven door cleaning apparatus - Google Patents
Coke oven door cleaning apparatusInfo
- Publication number
- CA1109414A CA1109414A CA302,682A CA302682A CA1109414A CA 1109414 A CA1109414 A CA 1109414A CA 302682 A CA302682 A CA 302682A CA 1109414 A CA1109414 A CA 1109414A
- Authority
- CA
- Canada
- Prior art keywords
- door
- cleaning
- scraper
- frame
- movable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B43/00—Preventing or removing incrustations
- C10B43/02—Removing incrustations
- C10B43/04—Removing incrustations by mechanical means
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A cleaning apparatus for use with a coke oven has mechanisms for extracting a coke oven door from a door jamb of the coke oven, for cleaning the extracted door and for cleaning the door jamb from which the door is extracted. The door jamb cleaning mechanism comprising a first stationary frame provided with first and second scrapers movable vertically for scraping and cleaning a sealing surface and an inner surface of the door jamb. The door cleaning mechanism has carriers movable along a vertical supporting frame, radial cutter devices each having a pair of radial cutters driven in opposite directions and scrapers. The door extracting mechanism tilts the door for in-spection and/or repair and has a stationary frame provided with a movable wire-suspended frame displaceable on wheels along vertical rails.
A cleaning apparatus for use with a coke oven has mechanisms for extracting a coke oven door from a door jamb of the coke oven, for cleaning the extracted door and for cleaning the door jamb from which the door is extracted. The door jamb cleaning mechanism comprising a first stationary frame provided with first and second scrapers movable vertically for scraping and cleaning a sealing surface and an inner surface of the door jamb. The door cleaning mechanism has carriers movable along a vertical supporting frame, radial cutter devices each having a pair of radial cutters driven in opposite directions and scrapers. The door extracting mechanism tilts the door for in-spection and/or repair and has a stationary frame provided with a movable wire-suspended frame displaceable on wheels along vertical rails.
Description
~as~i4 The present invention rela-tes to a cleaning apparatus for use with a coke oven.
According to the invention, there is provided a clean-ing apparatus for use with a coke oven, the cleaning apparatus comprising means for extracting a coke oven door from a door jamb of the coke oven; means for cleaning the extracted door;
and means for cleaning the door jamb from which the door is ex-tracted; the door jamb cleaning means comprising a first station-ary frame provided with first scraper-holding means having a plurality of first scrapers for scraping and cleaning a sealing surface of the door jamb, the first scraper-holding means being movable up and down; second scraper-holding means having a : plurality of second scrapers for scraping and cleaning an inner surface of the door jamb, the second scrapers being movable to-` wards and away from each other and up and down together with the first scraper-holding means; and heat-blocking means movable ~, up and down together with the first and second scraper-holding ......... means for blocking oven heat; the door cleaning means comprising a pair of carriers movable up and down along a vertical support-20 ing frame, radial cutter devices each having a pair of radial cutters, means for driving the pair of radial cutters in op-. posite directions and scrapers for cleaning a recessed portion , between a side of the door and a door sealing member; the door ' extracting means comprising means for tilting the coke oven door for inspection and/or repair thereof, and the tilting means com-prising a second stationary frame provided with a movable frame displaceable up and down along vertical rails on the second : stationary frame and on lateral rails, pairs of upper and lower wheels of the movable frame respectively engaging the vertical rails and the lateral rails and a wire suspending the movable 110~414 frame from the second stationary frame and operable by drive ; means.
Thus, the apparatus in accordance with the present invention can effectively be used to remove the door from the door jamb at the opening of a coking chamber for cleaning of the door and door jamb and enables the door to be tilted for f inspection and repair, if necessary.
An embodiment of the invention is shown in the draw-ings, in which:
Fig. 1 is a plan view of a cleaning apparatus embody-ing the invention and including a door jamb cleaner, a door cleaner and a door tilting apparatus;
Fig. 2 is a plan view of the door jamb cleaner of Fig.
1 with the left-hand side thereof shown in section;
Fig. 3 is a side elevational view of the door jamb cleaner of Fig. 2;
Fig. 4 is a schematic front elevational view of the door jamb cleaner showing a condition in which the scrapers are brought into contact with the inner surface of the door jamb;
Fig. 5 is a schematic front elevational view of parts of the door jamb cleaner in a contracted condition; -Fig. 6 is a view similar to Fig. 5 but with the door jamb cleaner parts in an expanded condition;
Fig. 7 is a front elevational view of a door cleaner forming part of the apparatus of Fig. l;
Fig. 8 is a cross-sectional view taken along line VIII-VIII in Fig. 7;
Fig. 9 is a schematic diagram showing a radial cutter device and hydraulic system;
Fig. 10 is an enlarged side elevational view of a scraper device;
9~14 Fig. 11 is a partial front elevational view of the door cleaner showing uppermost limit to be cleaned;
Fig. 12 is a front elevational view of a door tilting apparatus forming part of the apparatus of Fig. l; and Fig. 13 is a side elevational view of the apparatus , of Fig. 12.
,~ Referring now to the drawings, and particularly to Fig. 1, there are illustrated a pusher machine 3 and a coke guide car 4 respectively running past a pusher-side 2a and a coke-side 2b of a coke oven battery. On the pusher machine 3 and the coke guide car 4, there are respectively mounted door clean-ers b and door jamb cleaners a. There is further illustrated a door extracting and tilting apparatus c arranged at one end of the coke oven battery and parallel thereto.
A substantially rectangular vertical stationary frame 8 of the door jamb cleaner a is pivotally engaged with a pivotal shaft 6, provided on the front end of a supporting frame 5 which is movable to and fro, relative to an opening 16 of the oven chamber 1, with a door extractor 7.
As shown in Figs. 2 and 3, an intermediate frame 9, serving as a first scraper-holding means and supported by the stationary frame 8, is movab~e up and down along the stationary frame 8 by the action of a main hydraulic cylinder 12 provided ,, .
on the lower portion of the stationary frame 8. The intermediate frame 9 is connected through shafts 13 laterally extending there-from with a pair of interdependent frames 10, serving as a ; second scraper-holding means, and several heat-blocking plates 11. On both sides and the upper and lower ends of the inter-mediate frame 9 are provided a plurality of blade-shaped scrapers 20, 21 for scraping and cleaning away tar and the like adhering 'f,~
11~94~4 :.
~ to the sealing surface of a door jamb 19. The scrapers 21 are 7 forced against the sealing surface by spring units 22.
The interdependent frames 10 are shiftable toward and away from each other by pairs of link plates 14 which are hinged to the shafts 13, as shown in Figs 4 through 6. A pair of link plates 14 located on central portions of the interdependent ;~ frames 10 form a toggle joint 14' provided with a hydraulic cy-linder 15 for moving the interdependent frames 10 toward and away from each other.
As shown in Fig. 2, guide rails 23 are provided on the intermediate fr~me 9 and extending laterally therefrom to engage with guide rollers 24 extending from the stationary frame 8. Guide plates 25 extend frontward from both sides of the in-termediate frame 9 for facilitating insertion of the door jamb cleaner into the opening 16 of the oven chamber. Further, stops 26 extend frontwards from both sides of the stationary frame 8 to abut the sealing surface of the door jamb 19 and thereby to stop frontward movement of the door jamb cleaner.
~; As shown in Fig. 1, the coke oven door cleaners b are movably mounted on the pusher machine 3 and the coke guide car 4. A substantially rectangular vertical supporting frame 28 (Fig. 8) of the door cleaner, movable to and fro against the . door extractor 7 parallel to the battery, is provided with a ' pair of carriers 29, 29' at opposite sides thereof.
The carriers 29, 29' are connected to each other by a chain 32 (Fig. 7) and are guided by guide 28a of the support-ing frame 28. The carriers 29, 29' are movable up and down along the associated supporting frame 28 by respective sprocket wheels 30, which engage respective chains 44 provided on the 30 vertical supporting frame 28. As the carriers 29, 29' are inter-9 fl~ ~IL 9L
connected by the chain 32, they move in opposite directions.
For this purpose, the sprocket wheels 30 are rotatable in op-posite directions by respective hydraulic motors 31 fixed on the back or outer side of the carriers 29, 29'. Thus, when the left-hand sprocket wheels 30, as viewed in Fig. 7, are rotated counterclockwise and carrier 29 moves upwardly along the frame 28, the right-hand sprocket wheels 30 are rotated clockwise and carrier 29' moves downwardly along the frame 28.
An oscillatable radial cutter device is oscillatably mounted on the center projection of each substantially E-shaped carrier 29, 29'. A horizontally oriented rotary hydraulic cy-linder 35 is operable to oscillate each radial cutter device through small angle, and each cutter device carries a pair of rotatable radial cutters 37, 38 each rotatably mounted at the respective ends of the cutter device. These cutters 37, 38 which have a cylindrical shape and comprise several radial cut-ter parts, are rotatable about axes which extend substantially parallel to the adjacent sloping edge surface of the door plug to be cleaned. Each radial cutter 37, 38 has several claws 36 on its periphery. Upon energization of each hydraulic motor 31, the respective rotary cylinders 35 are simultaneously ener-gized to oscillate the respective radial cutter devices to move the lower radial cutters 38 into close contact with the sloping edge of the door plug, in the direction of the arrow "x", when the associated carrier moves upwardly. The upper radial cutter 37 is swung into contact with the sloping edge of the door plug in the direction of the arrow "y" when the associated carrier 29, 29' is moved downwardly, as shown in Fig. 7. During such movemen-t, the radial cutters 37, 38 are rotated by the hydraulic motors 31.
Arms 41, 42 are pivotally secured to the upper and lower ends 39, 40, respectively, of carriers 29, 29'. The free - end of each pivoted arm 41, 42 carries a scraper device in-cluding a scraper 43 at one end of a shifting rod 45 for clean-ing a recessed inside surface between a side portion of the door plug and the knife edge.
The radial cutter parts forming the radial cutter 37, 38 have several claws on the peripheries thereof and can be re-placed to adapt to the shape of the side edge of the door plug.
In Figs. 12 and 13, there is illustrated the door ex-tracting and tilting apparatus c which has a substantially rectangular vertical stationary frame 47, a pair of lateral rails 49 and a pair of vertical rails 50 installed on inner side portions of the stationary frame 47. The lateral rails 49 have portions 48 which are bent upwardly and parallel to each other at the ends adjacent the stationary frame 47. The vertical rails 50 are also bent frontwardly on the lower ends thereof.
An inner movable frame 55, which is provided with latches 52 for retaining the door, suspending roller rests 53 for receiving suspending rollers of the door and pairs of upper and lower wheels 54a, 54b on respective corners thereof, is movably suspended in the stationary frame 47 by a wire 57. The wire 57 is fitted around a pulley 55 mounted on the upper por-tion of the stationary frame 47 and operably connected to a hy-draulic cylinder 58. The upper wheels 54a of the movable frame 55 are respectively engaged with the vertical rails 50 and ver-tically movable up and down along the rails 50. The lower wheels 54b are respectively engaged with the lateral rails 49 and laterally movable to and fro relative to the stationary frame 47 along the rails 49.
For inspection and/or repair of a coke over door 60, the latter is extracted from the opening 16 of the chamber 1 and transferred to the door extracting and tilting apparatus c. The transferred door 60 is mounted on the movable frame 55 for movement up and down together with the movable frame 55.
Thereafter, the hydraulic cylinder 58 is actuated to slacken the wire 57 and thereby to allow the movable frame 55 with the door 60 thereon to move downwardly along the vertical rails 50. Then, the lower wheels 54b run forwardly along the lateral rails 49. The tilting of the door is terminated when the upper wheels 54a become positioned at the lower ends of the vertical rails 50. In this way, the door can be smoothly and safely tilted for inspection and/or repair.
On reinstallation of the door into the opening 16 of the coking chamber 1 to be closed, the hydraulic cylinder 58 is actuated in reverse to pull up the wire 57 and thereby to move the movable frame 55 together with the door 60 upwardly.
The lower wheels 54b of the movable frame 55 then run backwardly and the door can be stood up and released from the frame 55 by the door extractor 7.
Cleaning of the door and the door jamb are performed during substantially short intervals between coking operations when the door is extracted from the opening by the door ex-tractor 7.
The door jamb cleaner a is brought to the front of the opening of the coking chamber 1. The hydraulic cylinder 15 is then actuated to shift the interdependent frames 10 in-wardly, as shown in Fig. 5. The link plates 14 are consequently disposed in V-shapes around the shafts 13, thus resulting in upward movement of the interdependent frames 10. As a conse-11~)9~14 quence, the scrapers 17, provided on the interdependent frames 10, are caused to approach each other, thus allowing easy in-sertion of the cleaner a into the opening 16 of the oven chamber 1 until stoppers 26 on the side of the stationary frame 8 sense the sealing surface of the door jamb, as shown in Fig. 2.
Meanwhile, the scrapers 20, 21 on the intermediate frame 9 are pressed onto the door sealing surface of the door jamb. Then, the hydraulic cylinder 15 is reversely actuated to straighten the link plates 14, thus moving the frames 10 apart, as shown in Fig. 6. Consequently, as shown in Fig. 4, the scrapers 17 are pressed onto the inner surface of the door jamb 19.
After the above operation, the main hydraulic cylinder 12 is actuated to move the intermediate frame 9 together with the interdependent frames 10 and heat-blocking plates 11 up and down. The scrapers 17, 20, 21 are thus moved up and down while scraping the door sealing surface and the inner surface of the door jamb 19 to remove completely the tar and the like adhered thereon.
For withdrawing the cleaner a from the opening 16 of the coking chamber 1, the interdependent frames 10 are moved inwardly, i.e. towards one another, by the action of the hy-draulic cylinder 15 to detach the scrapers 17 from the cleaning surface so that the cleaner may be easily drawn out from the opening 16 without damage to the scrapers 17 and the door jamb 19.
Since the present door jamb cleaner is constructed as described above, the surfaces having tar adhered thereto, including not only the inner surface of the door jamb 16 but also the sealing surface of the door jamb, can be completely cleaned. The employment of the heat-blocking plates serve to prevent the cleaner from being subjected to damage by the heat of the oven. Further, since the scrapers 17, 20, 21 are pressed onto the cleaning surface by the spring units 18, 22 with moder-ate pressure, then on one hand, excessive force is not exerted thereby on the cleaning surface, which might otherwise be damaged, while on the other hand all of the scrapers securely work on the cleaning surface without becoming loose.
While the door jamb cleaner is carrying out the clean-ing operation for the door jamb, the door 60 to be cleaned is held by the door extractor 7 and tilted through 90.
After the door jamb cleaner finishes the cleaning operation, the supporting frame 5 together with the door jamb cleaner and the door extractor move backwardly. The backward ~; movement of the supporting frame 5 is terminated at the position at which the door 60 on door extractor fa¢es the door cleaner b. Then, the door cleaner moves to effect the door cleaning.
Before the cleaning operation, the carriers 29, 29' are located in the mid-portion of the supporting frame 28, with ' 20 the radial cutter devices oriented vertically to remain station-ary and with the scrapers 43 being fully pulled back.
By doing so, the space between the scrapers of both carriers 29, 29' can be made wide enough to allow the door to enter the cleaner, as shown in Fig. 8.
After setting the door 60 properly in the supporting frame 28, both the hydraulic motors 31 and the rotary hydraulic cylinder 35 are operated. The hydraulic motors 31 then displace - the carriers 29, 29' up and down, and the hydraulic cylinders 35 rotate the radial cutters 37, 38. Thus, the lower radial j 30 cutter 38 of the carrier 29 is pressed towards the door side g _ ll~9~i~4 with a powerful but low speed rotation in the direction of the arrow "x" in Fig. 7. On the other hand, the upper radial cutter 37 of the descending carrier 29' is also pressed toward the door side to rotate in the direction of the arrow "y" in Fig. 7.
As the hydraulic cylinder 35 starts to work and the scraper devices are pulled close to the door, the scrapers 43 are moved close to the knife edge to reach the recessed inside surface between the door side and the knife edge.
The directions of rotation of the hydraulic motors 31 change automatically to reverse the carrier movements when the latter reach the uppermost or lowermost limit.
As shown in Fig. 11, the arms 41, 42 tilt inwardly along scraper guide to clean a half of the knife edge and ad-jacent area respectively, when the carriers 29, 29' approach the uppermost or lowermost limits. The up and down movement of the radial cutters pressed against the doorsidesscrapes tar and the like completely off the door sides.
Since the sharp claws scrape fully, a single travel of the carriers up and down along the supporting frame is efficient for cleaning the door. The shape of the radial cut-ter is variable depending on the degree of slope of the door plug, and a set of several radial cutter parts to be fixed on the same axle may also be employed.
It will be more effective-to provide two sets of the door jamb cleaners and the door cleaners on the pusher-machine and coke guide car, respectively, when two pushers are provided as shown in Fig. 1.
While a specific embodiment of the present invention has been shown and described in detail to illustrate the applica-tion of the principles of the invention, it will be understood . that the invention may be embodied otherwise without departing from such principles.
,:
, , s ,'.,:~
i:
According to the invention, there is provided a clean-ing apparatus for use with a coke oven, the cleaning apparatus comprising means for extracting a coke oven door from a door jamb of the coke oven; means for cleaning the extracted door;
and means for cleaning the door jamb from which the door is ex-tracted; the door jamb cleaning means comprising a first station-ary frame provided with first scraper-holding means having a plurality of first scrapers for scraping and cleaning a sealing surface of the door jamb, the first scraper-holding means being movable up and down; second scraper-holding means having a : plurality of second scrapers for scraping and cleaning an inner surface of the door jamb, the second scrapers being movable to-` wards and away from each other and up and down together with the first scraper-holding means; and heat-blocking means movable ~, up and down together with the first and second scraper-holding ......... means for blocking oven heat; the door cleaning means comprising a pair of carriers movable up and down along a vertical support-20 ing frame, radial cutter devices each having a pair of radial cutters, means for driving the pair of radial cutters in op-. posite directions and scrapers for cleaning a recessed portion , between a side of the door and a door sealing member; the door ' extracting means comprising means for tilting the coke oven door for inspection and/or repair thereof, and the tilting means com-prising a second stationary frame provided with a movable frame displaceable up and down along vertical rails on the second : stationary frame and on lateral rails, pairs of upper and lower wheels of the movable frame respectively engaging the vertical rails and the lateral rails and a wire suspending the movable 110~414 frame from the second stationary frame and operable by drive ; means.
Thus, the apparatus in accordance with the present invention can effectively be used to remove the door from the door jamb at the opening of a coking chamber for cleaning of the door and door jamb and enables the door to be tilted for f inspection and repair, if necessary.
An embodiment of the invention is shown in the draw-ings, in which:
Fig. 1 is a plan view of a cleaning apparatus embody-ing the invention and including a door jamb cleaner, a door cleaner and a door tilting apparatus;
Fig. 2 is a plan view of the door jamb cleaner of Fig.
1 with the left-hand side thereof shown in section;
Fig. 3 is a side elevational view of the door jamb cleaner of Fig. 2;
Fig. 4 is a schematic front elevational view of the door jamb cleaner showing a condition in which the scrapers are brought into contact with the inner surface of the door jamb;
Fig. 5 is a schematic front elevational view of parts of the door jamb cleaner in a contracted condition; -Fig. 6 is a view similar to Fig. 5 but with the door jamb cleaner parts in an expanded condition;
Fig. 7 is a front elevational view of a door cleaner forming part of the apparatus of Fig. l;
Fig. 8 is a cross-sectional view taken along line VIII-VIII in Fig. 7;
Fig. 9 is a schematic diagram showing a radial cutter device and hydraulic system;
Fig. 10 is an enlarged side elevational view of a scraper device;
9~14 Fig. 11 is a partial front elevational view of the door cleaner showing uppermost limit to be cleaned;
Fig. 12 is a front elevational view of a door tilting apparatus forming part of the apparatus of Fig. l; and Fig. 13 is a side elevational view of the apparatus , of Fig. 12.
,~ Referring now to the drawings, and particularly to Fig. 1, there are illustrated a pusher machine 3 and a coke guide car 4 respectively running past a pusher-side 2a and a coke-side 2b of a coke oven battery. On the pusher machine 3 and the coke guide car 4, there are respectively mounted door clean-ers b and door jamb cleaners a. There is further illustrated a door extracting and tilting apparatus c arranged at one end of the coke oven battery and parallel thereto.
A substantially rectangular vertical stationary frame 8 of the door jamb cleaner a is pivotally engaged with a pivotal shaft 6, provided on the front end of a supporting frame 5 which is movable to and fro, relative to an opening 16 of the oven chamber 1, with a door extractor 7.
As shown in Figs. 2 and 3, an intermediate frame 9, serving as a first scraper-holding means and supported by the stationary frame 8, is movab~e up and down along the stationary frame 8 by the action of a main hydraulic cylinder 12 provided ,, .
on the lower portion of the stationary frame 8. The intermediate frame 9 is connected through shafts 13 laterally extending there-from with a pair of interdependent frames 10, serving as a ; second scraper-holding means, and several heat-blocking plates 11. On both sides and the upper and lower ends of the inter-mediate frame 9 are provided a plurality of blade-shaped scrapers 20, 21 for scraping and cleaning away tar and the like adhering 'f,~
11~94~4 :.
~ to the sealing surface of a door jamb 19. The scrapers 21 are 7 forced against the sealing surface by spring units 22.
The interdependent frames 10 are shiftable toward and away from each other by pairs of link plates 14 which are hinged to the shafts 13, as shown in Figs 4 through 6. A pair of link plates 14 located on central portions of the interdependent ;~ frames 10 form a toggle joint 14' provided with a hydraulic cy-linder 15 for moving the interdependent frames 10 toward and away from each other.
As shown in Fig. 2, guide rails 23 are provided on the intermediate fr~me 9 and extending laterally therefrom to engage with guide rollers 24 extending from the stationary frame 8. Guide plates 25 extend frontward from both sides of the in-termediate frame 9 for facilitating insertion of the door jamb cleaner into the opening 16 of the oven chamber. Further, stops 26 extend frontwards from both sides of the stationary frame 8 to abut the sealing surface of the door jamb 19 and thereby to stop frontward movement of the door jamb cleaner.
~; As shown in Fig. 1, the coke oven door cleaners b are movably mounted on the pusher machine 3 and the coke guide car 4. A substantially rectangular vertical supporting frame 28 (Fig. 8) of the door cleaner, movable to and fro against the . door extractor 7 parallel to the battery, is provided with a ' pair of carriers 29, 29' at opposite sides thereof.
The carriers 29, 29' are connected to each other by a chain 32 (Fig. 7) and are guided by guide 28a of the support-ing frame 28. The carriers 29, 29' are movable up and down along the associated supporting frame 28 by respective sprocket wheels 30, which engage respective chains 44 provided on the 30 vertical supporting frame 28. As the carriers 29, 29' are inter-9 fl~ ~IL 9L
connected by the chain 32, they move in opposite directions.
For this purpose, the sprocket wheels 30 are rotatable in op-posite directions by respective hydraulic motors 31 fixed on the back or outer side of the carriers 29, 29'. Thus, when the left-hand sprocket wheels 30, as viewed in Fig. 7, are rotated counterclockwise and carrier 29 moves upwardly along the frame 28, the right-hand sprocket wheels 30 are rotated clockwise and carrier 29' moves downwardly along the frame 28.
An oscillatable radial cutter device is oscillatably mounted on the center projection of each substantially E-shaped carrier 29, 29'. A horizontally oriented rotary hydraulic cy-linder 35 is operable to oscillate each radial cutter device through small angle, and each cutter device carries a pair of rotatable radial cutters 37, 38 each rotatably mounted at the respective ends of the cutter device. These cutters 37, 38 which have a cylindrical shape and comprise several radial cut-ter parts, are rotatable about axes which extend substantially parallel to the adjacent sloping edge surface of the door plug to be cleaned. Each radial cutter 37, 38 has several claws 36 on its periphery. Upon energization of each hydraulic motor 31, the respective rotary cylinders 35 are simultaneously ener-gized to oscillate the respective radial cutter devices to move the lower radial cutters 38 into close contact with the sloping edge of the door plug, in the direction of the arrow "x", when the associated carrier moves upwardly. The upper radial cutter 37 is swung into contact with the sloping edge of the door plug in the direction of the arrow "y" when the associated carrier 29, 29' is moved downwardly, as shown in Fig. 7. During such movemen-t, the radial cutters 37, 38 are rotated by the hydraulic motors 31.
Arms 41, 42 are pivotally secured to the upper and lower ends 39, 40, respectively, of carriers 29, 29'. The free - end of each pivoted arm 41, 42 carries a scraper device in-cluding a scraper 43 at one end of a shifting rod 45 for clean-ing a recessed inside surface between a side portion of the door plug and the knife edge.
The radial cutter parts forming the radial cutter 37, 38 have several claws on the peripheries thereof and can be re-placed to adapt to the shape of the side edge of the door plug.
In Figs. 12 and 13, there is illustrated the door ex-tracting and tilting apparatus c which has a substantially rectangular vertical stationary frame 47, a pair of lateral rails 49 and a pair of vertical rails 50 installed on inner side portions of the stationary frame 47. The lateral rails 49 have portions 48 which are bent upwardly and parallel to each other at the ends adjacent the stationary frame 47. The vertical rails 50 are also bent frontwardly on the lower ends thereof.
An inner movable frame 55, which is provided with latches 52 for retaining the door, suspending roller rests 53 for receiving suspending rollers of the door and pairs of upper and lower wheels 54a, 54b on respective corners thereof, is movably suspended in the stationary frame 47 by a wire 57. The wire 57 is fitted around a pulley 55 mounted on the upper por-tion of the stationary frame 47 and operably connected to a hy-draulic cylinder 58. The upper wheels 54a of the movable frame 55 are respectively engaged with the vertical rails 50 and ver-tically movable up and down along the rails 50. The lower wheels 54b are respectively engaged with the lateral rails 49 and laterally movable to and fro relative to the stationary frame 47 along the rails 49.
For inspection and/or repair of a coke over door 60, the latter is extracted from the opening 16 of the chamber 1 and transferred to the door extracting and tilting apparatus c. The transferred door 60 is mounted on the movable frame 55 for movement up and down together with the movable frame 55.
Thereafter, the hydraulic cylinder 58 is actuated to slacken the wire 57 and thereby to allow the movable frame 55 with the door 60 thereon to move downwardly along the vertical rails 50. Then, the lower wheels 54b run forwardly along the lateral rails 49. The tilting of the door is terminated when the upper wheels 54a become positioned at the lower ends of the vertical rails 50. In this way, the door can be smoothly and safely tilted for inspection and/or repair.
On reinstallation of the door into the opening 16 of the coking chamber 1 to be closed, the hydraulic cylinder 58 is actuated in reverse to pull up the wire 57 and thereby to move the movable frame 55 together with the door 60 upwardly.
The lower wheels 54b of the movable frame 55 then run backwardly and the door can be stood up and released from the frame 55 by the door extractor 7.
Cleaning of the door and the door jamb are performed during substantially short intervals between coking operations when the door is extracted from the opening by the door ex-tractor 7.
The door jamb cleaner a is brought to the front of the opening of the coking chamber 1. The hydraulic cylinder 15 is then actuated to shift the interdependent frames 10 in-wardly, as shown in Fig. 5. The link plates 14 are consequently disposed in V-shapes around the shafts 13, thus resulting in upward movement of the interdependent frames 10. As a conse-11~)9~14 quence, the scrapers 17, provided on the interdependent frames 10, are caused to approach each other, thus allowing easy in-sertion of the cleaner a into the opening 16 of the oven chamber 1 until stoppers 26 on the side of the stationary frame 8 sense the sealing surface of the door jamb, as shown in Fig. 2.
Meanwhile, the scrapers 20, 21 on the intermediate frame 9 are pressed onto the door sealing surface of the door jamb. Then, the hydraulic cylinder 15 is reversely actuated to straighten the link plates 14, thus moving the frames 10 apart, as shown in Fig. 6. Consequently, as shown in Fig. 4, the scrapers 17 are pressed onto the inner surface of the door jamb 19.
After the above operation, the main hydraulic cylinder 12 is actuated to move the intermediate frame 9 together with the interdependent frames 10 and heat-blocking plates 11 up and down. The scrapers 17, 20, 21 are thus moved up and down while scraping the door sealing surface and the inner surface of the door jamb 19 to remove completely the tar and the like adhered thereon.
For withdrawing the cleaner a from the opening 16 of the coking chamber 1, the interdependent frames 10 are moved inwardly, i.e. towards one another, by the action of the hy-draulic cylinder 15 to detach the scrapers 17 from the cleaning surface so that the cleaner may be easily drawn out from the opening 16 without damage to the scrapers 17 and the door jamb 19.
Since the present door jamb cleaner is constructed as described above, the surfaces having tar adhered thereto, including not only the inner surface of the door jamb 16 but also the sealing surface of the door jamb, can be completely cleaned. The employment of the heat-blocking plates serve to prevent the cleaner from being subjected to damage by the heat of the oven. Further, since the scrapers 17, 20, 21 are pressed onto the cleaning surface by the spring units 18, 22 with moder-ate pressure, then on one hand, excessive force is not exerted thereby on the cleaning surface, which might otherwise be damaged, while on the other hand all of the scrapers securely work on the cleaning surface without becoming loose.
While the door jamb cleaner is carrying out the clean-ing operation for the door jamb, the door 60 to be cleaned is held by the door extractor 7 and tilted through 90.
After the door jamb cleaner finishes the cleaning operation, the supporting frame 5 together with the door jamb cleaner and the door extractor move backwardly. The backward ~; movement of the supporting frame 5 is terminated at the position at which the door 60 on door extractor fa¢es the door cleaner b. Then, the door cleaner moves to effect the door cleaning.
Before the cleaning operation, the carriers 29, 29' are located in the mid-portion of the supporting frame 28, with ' 20 the radial cutter devices oriented vertically to remain station-ary and with the scrapers 43 being fully pulled back.
By doing so, the space between the scrapers of both carriers 29, 29' can be made wide enough to allow the door to enter the cleaner, as shown in Fig. 8.
After setting the door 60 properly in the supporting frame 28, both the hydraulic motors 31 and the rotary hydraulic cylinder 35 are operated. The hydraulic motors 31 then displace - the carriers 29, 29' up and down, and the hydraulic cylinders 35 rotate the radial cutters 37, 38. Thus, the lower radial j 30 cutter 38 of the carrier 29 is pressed towards the door side g _ ll~9~i~4 with a powerful but low speed rotation in the direction of the arrow "x" in Fig. 7. On the other hand, the upper radial cutter 37 of the descending carrier 29' is also pressed toward the door side to rotate in the direction of the arrow "y" in Fig. 7.
As the hydraulic cylinder 35 starts to work and the scraper devices are pulled close to the door, the scrapers 43 are moved close to the knife edge to reach the recessed inside surface between the door side and the knife edge.
The directions of rotation of the hydraulic motors 31 change automatically to reverse the carrier movements when the latter reach the uppermost or lowermost limit.
As shown in Fig. 11, the arms 41, 42 tilt inwardly along scraper guide to clean a half of the knife edge and ad-jacent area respectively, when the carriers 29, 29' approach the uppermost or lowermost limits. The up and down movement of the radial cutters pressed against the doorsidesscrapes tar and the like completely off the door sides.
Since the sharp claws scrape fully, a single travel of the carriers up and down along the supporting frame is efficient for cleaning the door. The shape of the radial cut-ter is variable depending on the degree of slope of the door plug, and a set of several radial cutter parts to be fixed on the same axle may also be employed.
It will be more effective-to provide two sets of the door jamb cleaners and the door cleaners on the pusher-machine and coke guide car, respectively, when two pushers are provided as shown in Fig. 1.
While a specific embodiment of the present invention has been shown and described in detail to illustrate the applica-tion of the principles of the invention, it will be understood . that the invention may be embodied otherwise without departing from such principles.
,:
, , s ,'.,:~
i:
Claims (9)
1. A cleaning apparatus for use with a coke oven, said cleaning apparatus comprising:
means for extracting a coke oven door from a door jamb of the coke oven;
means for cleaning the extracted door; and means for cleaning the door jamb from which the door is extracted;
said door jamb cleaning means comprising a first stationary frame provided with:
first scraper-holding means having a plurality of first scrapers for scraping and cleaning a sealing surface of said door jamb, said first scraper-holding means being movable up and down;
second scraper-holding means having a plurality of second scrapers for scraping and cleaning an inner surface of said door jamb, said second scrapers being movable towards and away from each other and up and down together with said first scraper-holding means; and heat-blocking means movable up and down together with said first and second scraper-holding means for blocking oven heat;
said door cleaning means comprising a pair of carriers movable up and down along a vertical supporting frame, radial cutter devices each having a pair of radial cutters, means for driving said pair of radial cutters in opposite directions and scrapers for cleaning a recessed portion between a side of said door and a door sealing member;
said door extracting means comprising means for tilt-ing said coke oven door for inspection and/or repair thereof, and said tilting means comprising a second stationary frame pro-vided with a movable frame displaceable up and down along ver-tical rails on said second stationary frame and on lateral rails, pairs of upper and lower wheels of said movable frame respectively engaging said vertical rails and said lateral rails and a wire suspending said movable frame from said second stationary frame and operable by drive means.
means for extracting a coke oven door from a door jamb of the coke oven;
means for cleaning the extracted door; and means for cleaning the door jamb from which the door is extracted;
said door jamb cleaning means comprising a first stationary frame provided with:
first scraper-holding means having a plurality of first scrapers for scraping and cleaning a sealing surface of said door jamb, said first scraper-holding means being movable up and down;
second scraper-holding means having a plurality of second scrapers for scraping and cleaning an inner surface of said door jamb, said second scrapers being movable towards and away from each other and up and down together with said first scraper-holding means; and heat-blocking means movable up and down together with said first and second scraper-holding means for blocking oven heat;
said door cleaning means comprising a pair of carriers movable up and down along a vertical supporting frame, radial cutter devices each having a pair of radial cutters, means for driving said pair of radial cutters in opposite directions and scrapers for cleaning a recessed portion between a side of said door and a door sealing member;
said door extracting means comprising means for tilt-ing said coke oven door for inspection and/or repair thereof, and said tilting means comprising a second stationary frame pro-vided with a movable frame displaceable up and down along ver-tical rails on said second stationary frame and on lateral rails, pairs of upper and lower wheels of said movable frame respectively engaging said vertical rails and said lateral rails and a wire suspending said movable frame from said second stationary frame and operable by drive means.
2. A cleaning apparatus as defined in claim 1, where-in said second scraper holding means comprises a pair of scraper supports which are shiftably connected by pairs of link plates movably hinged to shafts laterally extending from said first scraper-holding means, one of said pairs of link plates serving as a toggle joint and being connected to a hydraulic cylinder actuatable to shift said second scraper supports toward and away from each other.
3. A cleaning apparatus as defined in claim 2, where-in said door jamb cleaning means includes drive means for dis-placing said first scraper-holding means up and down along said first stationary frame, said second scraper-holding means being movable together with the first scraper-holding means, and said scraper supports comprising a pair of interdependent members movable toward and away from each other by the action of said toggle joint.
4. A cleaning apparatus as defined in claim 1, 2 or 3, wherein said first and second scraper-holding means are equipped with blade-shaped scrappers.
5. A cleaning apparatus as defined in claim 1, where-in said door cleaning apparatus comprises hydraulic drive means for displacing said carriers up and down and for rotating said radial cutters of said radial cutter devices and hydraulic cy-linder means for oscillating said radial cutter devices.
6. A cleaning apparatus as defined in claim 5, where-in said supporting frame is a substantially rectangular support-ing frame for surrounding a door plug and formed with a guide extending therealong, said pair of carriers being mounted on said frame and engaged with said guide for movement along said frame, said drive means including a motor on each of said car-riers for moving said carriers in guided relation along said frame, a pair of said scrapers being provided on each of said carriers, each of said scrapers being pivotally mounted on its associated carrier at a respective end thereof and one of said radial cutter devices being mounted on each of said carriers and including cutter means rotatable about a horizontal axis.
7. A cleaning apparatus as defined in claim 6, where-in each of said radial cutter devices is pivotally connected, intermediate its ends, to the respective one of said carriers and comprises a pair of radial cutters, one at each end thereof, said hydraulic cylinder means comprising hydraulic rotary cylin-ders respectively operatively associated with said cutter de-vices and each operable to pivot its respective cutter device angularly to bring a respective one of said two cutters thereof into operative relation with said door.
8. A cleaning apparatus as defined in claim 1, where-in said lateral rails have inner ends which are upwardly bent, said vertical rails are installed on respective inner sides of a vertical portion of said stationary frame and bent front-wardly.
9. A cleaning apparatus as defined in claim 1, 2 or 8, wherein said movable frame of said door tilting apparatus has latch means for engaging and retaining the door for move-ment with said movable frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA302,682A CA1109414A (en) | 1978-05-05 | 1978-05-05 | Coke oven door cleaning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA302,682A CA1109414A (en) | 1978-05-05 | 1978-05-05 | Coke oven door cleaning apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1109414A true CA1109414A (en) | 1981-09-22 |
Family
ID=4111397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA302,682A Expired CA1109414A (en) | 1978-05-05 | 1978-05-05 | Coke oven door cleaning apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1109414A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001022017A1 (en) * | 1999-09-23 | 2001-03-29 | Outokumpu Oyj | Apparatus for clearing dust accretions in connection with a smelting furnace |
-
1978
- 1978-05-05 CA CA302,682A patent/CA1109414A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001022017A1 (en) * | 1999-09-23 | 2001-03-29 | Outokumpu Oyj | Apparatus for clearing dust accretions in connection with a smelting furnace |
| US6689309B1 (en) | 1999-09-23 | 2004-02-10 | Outokumpu Oyj | Apparatus for clearing dust accretions in connection with a smelting furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3822191A (en) | Door cleaner for coke oven | |
| CN211134893U (en) | Chemical barrel cleaning device | |
| US4300257A (en) | Apparatus for cleaning coke oven door | |
| CA1109414A (en) | Coke oven door cleaning apparatus | |
| US4003802A (en) | Coke guide machine for a battery of coke ovens | |
| US4026768A (en) | Door extracting and cleaning machine for coke ovens | |
| CN117644066A (en) | Metal recovery edulcoration equipment | |
| CN115251133B (en) | Poultry gizzard esophagus grease scraping mechanism | |
| CN110817354B (en) | Coal conveyer belt clearance and collect remaining coal cinder device | |
| US3577321A (en) | Combined coke oven door jamb cleaning apparatus and door handling apparatus | |
| CA1176202A (en) | Coke oven battery bench cleaning apparatus | |
| KR101554817B1 (en) | Apparatus collecting cokes dust in coke dry quenching | |
| US3526013A (en) | Device for driving sweeper for coke oven door | |
| GB1577971A (en) | Cleaning device for a coke oven door jamb | |
| US1945085A (en) | Door removing and replacing device | |
| US3115655A (en) | Apparatus for cleaning coke oven doors | |
| CN220212708U (en) | Self-cleaning sausage baking device | |
| JP2587341B2 (en) | Coke oven door frame cleaner | |
| CN220555335U (en) | Glass slag operation trolley | |
| JPS638733Y2 (en) | ||
| JPS639563Y2 (en) | ||
| JPS639562Y2 (en) | ||
| SU1058996A1 (en) | Device for cleaning risers of coking ovens | |
| CN219149339U (en) | Novel bridge type mud scraper | |
| JP2849493B2 (en) | Coke oven charging hole cleaning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |