JP2014118496A - Coke discharge device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coke discharge device causing no mutual interference with a pusher or a guide wheel.SOLUTION: A coke discharge device 1 includes a base for mounting a retractable ram 50 having means for raking coke at the tip end, on a dolly 10. The base is rotated by a rotation mechanism such that the longitudinal direction of the ram 50 follows along the moving direction of the dolly 10. A pusher 101 or a guide wheel forms a space part between itself and the floor face through which the coke discharge device 1 is able to pass while the base is in a descent state by a lifting mechanism.

Description

  The present invention relates to a coke discharging apparatus capable of discharging, for example, clogged coke when clogging occurs in coke extrusion work, for example.

  In the operation of the coke oven, after the end of dry distillation, the coke is pushed out using an extruder. Specifically, the extrusion ram mounted on the extruder moves forward and is inserted into the furnace, and coke is pushed out by the head portion of the extrusion ram. The extruded coke is accommodated in a fire extinguisher through a guide car, and is transported to a fire extinguisher and cooled by watering, or is transported to a dry fire extinguishing facility.

  By the way, in the coke extrusion work, clogging sometimes occurs. Clogging refers to a phenomenon in which coke is clogged in the furnace and cannot be extruded by an extruder. On the other hand, various coke discharging apparatuses that discharge clogged coke to the outside to eliminate clogging have been proposed.

  The coke discharging apparatus described in Patent Document 1 includes a front open type receiver that is mounted in front of the lower end of the head portion of the extrusion ram when clogging occurs, and the extrusion ram is advanced and inserted into the carbonization chamber. Then, after receiving the clogged coke at the receiver, the extrusion ram is retracted, and the clogged coke is discharged to the extruder side of the coke oven.

  The coke discharging device described in Patent Document 2 can be tilted with respect to a kiln opening at a lower end of the latch plate and a latch plate that is latched by a furnace lid attaching / detaching mechanism of the guide car when clogging occurs. And a stopper that tilts the scoop by engaging the rear end side of the scoop, and scrapes the coke in a clogged manner by the same operation as the attachment and detachment of the furnace cover.

  The coke discharging device described in Patent Document 3 is arranged such that a carriage that can move in front of the furnace on the extruder side or the guide car side along the furnace group direction, and can be rotated around the vertical axis on the carriage. A revolving body, a boom rotatably provided around a horizontal axis in a part of the revolving body, an arm rotatably connected to the other end of the boom around a horizontal axis, and the other end of the arm And a bucket that is pivotably connected around a horizontal axis, and scrapes coke by scraping the bucket by rotating the bucket.

JP-A-9-59643 JP 2006-124539 A JP 7-316560 A

  However, since the coke discharging apparatus described in Patent Document 1 and Patent Document 2 is an apparatus mounted on an extruder or a guide car that is a coke production facility, the extruder or the guide car is used during the clogging elimination operation. Will be restrained. Therefore, the coke discharging apparatus described in Patent Document 1 and Patent Document 2 has a problem that the operation rate of the extruder or the guide vehicle is reduced due to the clogging elimination work, and the coke productivity is lowered. Yes.

  On the other hand, the coke discharging apparatus described in Patent Document 3 is an apparatus provided independently from the extruder or the guide wheel. However, the coke discharging apparatus described in Patent Document 3 serves both as an extruder or a guide wheel and a rail. Therefore, if there is an extruder or a guide wheel in the middle of moving the coke discharging device to the furnace for performing the clogging elimination work, it is necessary to move the extruder or the guide vehicle to a place where the coke discharging device does not hit. The coke discharging apparatus described in Patent Document 3 also has the same problem.

  In addition, the coke discharging apparatus described in Patent Document 3 has a problem in that during normal operation, it interferes with the running of the extruder or guide car, and the extruder or guide car cannot be immediately moved to the target furnace. doing.

  This invention is made | formed in view of this situation, and makes it a subject to provide the coke discharging apparatus which does not mutually interfere with an extruder or a guide vehicle.

The coke discharging apparatus according to the present invention is:
A cart that is arranged in front of the furnace on the extruder side or the guide vehicle side of the coke oven and moves along the direction of the coke oven furnace group;
A base disposed on the carriage;
A ram that is mounted on the base so as to be freely retractable and has a coke scraping means at the tip;
A turning mechanism for turning the base;
An elevating mechanism for elevating the base,
A space part formed between the extruder or the guide car and the floor surface in a state where the base is turned by the turning mechanism so that the longitudinal direction of the ram is along the moving direction of the carriage and the base is lowered by the lifting mechanism. It becomes the size that can pass.

  According to such a configuration, the base (the height position in the vertical direction) is positioned by the elevating mechanism so that the coke scraping means and the furnace port face each other, and the longitudinal direction of the ram and the furnace length direction coincide with each other. In addition, the coke in the furnace is scraped out by the coke scraping means at the tip of the ram when the ram is withdrawn and withdrawn in a state where the base (the angular position in the horizontal direction) is positioned by the turning mechanism.

  Then, from this coke scraping work posture (deployment posture), the base is turned by the turning mechanism so that the longitudinal direction of the ram is along the moving direction of the carriage, and the base is lowered by the lifting mechanism (to the compressed posture). The coke discharging device has a size capable of passing through the space formed between the extruder or the guide wheel and the floor surface. Therefore, the coke discharging device can pass through the space portion of the extruder or the guide vehicle even if the extruder or the guide vehicle is on the way to the target furnace. Thereby, when the coke discharging apparatus is moved, it is not necessary to move the extruder or the guide vehicle to a place where the coke discharging apparatus does not hit.

  On the contrary, the extruder or the guide wheel can avoid the coke discharging device through the space portion formed between the extruder or the guide wheel and the floor surface. Therefore, at the time of normal operation, the extruder or the guide vehicle can be moved while avoiding the coke discharging device even if the coke discharging device is on the way to the target furnace. Thereby, when the extruder or the guide wheel is moved, the extruder or the guide wheel can be immediately moved to the target furnace.

  The “space portion formed between the extruder or the guide wheel and the floor surface” means not only the space portion formed between the extruder or the guide wheel and the floor surface from the beginning, but also the extruder or the guide vehicle. Of these configurations, the concept includes a space portion that is expanded by removing a member that can be removed lightly.

  Here, as one aspect of the coke discharging apparatus according to the present invention, the coke scraping means may further include a reaction force receiving mechanism that receives a reaction force received from the coke when the ram advances.

  In this case, the reaction force receiving mechanism is disposed on the side opposite to the direction in which the ram advances, and is a jack structure that engages with the extruder side or the rail of the guide wheel, another rail, or the floor surface, and so on. can do.

  Moreover, as another aspect of the coke discharging apparatus according to the present invention, the turning mechanism can be a turntable in which a base is attached directly or indirectly to turn the base.

  Moreover, as another aspect of the coke discharging apparatus according to the present invention, the elevating mechanism is a pair of link members whose midpoints are rotatably connected, and one end of one link member is rotatable to the cart side. One end of the other link member is slidably connected to the carriage side, the other end of the other link member is rotatably connected to the base, and the other end of the one link member The portion may be composed of a pair of link members that are slidably connected to the base, and an actuator that changes an intersection angle of the pair of link members.

  As described above, according to the coke discharging apparatus according to the present invention, it is possible to eliminate the mutual interference with the extruder or the guide vehicle, which causes a decrease in the operating rate of the extruder or the guide vehicle, and hence the coke productivity. Can do.

FIG. 1 is a coke discharging apparatus according to an embodiment of the present invention, and shows an overall view of a coke discharging apparatus in an expanded posture, as viewed from the furnace group direction of a coke oven. 2 (a) is an enlarged view of a specific location in FIG. 1, FIG. 2 (b) is an enlarged view of another specific location in FIG. 1, and FIG. 2 (c) is a further specific location in FIG. An enlarged view is shown. FIG. 3 shows a plan view of the coke discharging device in the deployed position. FIG. 4 shows an overall view of the coke discharging device in the compressed posture as seen from the furnace length direction of the coke oven. FIG. 5 shows an overall view of the coke discharging device in the compressed posture as viewed from the coke oven direction. FIG. 6 shows another embodiment of the reaction force receiving structure in the coke discharging apparatus.

  Hereinafter, an embodiment of a coke discharging apparatus according to the present invention will be described mainly with reference to FIGS. 1 and 3 to 5. In the following description, the direction of the coke oven group is referred to as a first direction X, and the length direction of the coke oven, that is, the direction orthogonal to the coke oven direction is referred to as a second direction Y.

  The coke discharging apparatus 1 is a pair for the extruder 101 arranged in the first direction X with a predetermined interval in the second direction Y in front of the furnace on the extruder 101 side of the coke oven 100. Are arranged on the floor surface 103 between the rails 102, 102. The coke discharging apparatus 10 is connected to the carriage 10 moving along the first direction X, the first base 20 disposed on the carriage 10, and the first base 20 via a link member 30. A second base 40 and a ram 50 mounted on the second base 40 so as to be retractable and having a scoop 52 at the distal end portion are provided.

  The carriage 10 includes a body 11 that is long along the first direction X, a plurality of wheels (in this embodiment, rubber tires) 12,... The carriage 10 is disposed at a position on the floor surface 103 between the pair of rails 102, 102 that is close to the rail 102 on the side away from the furnace 100. However, the cart 10 may be arranged in the middle of the pair of rails 102, 102 instead of the position near the rail 102.

  As shown in FIG. 2A, a guide groove 104 is formed along the first direction X on the floor surface 103. On the other hand, a pin having a guide roller 14 protrudes downward from the bottom surface of the carriage 10. The guide roller 14 enters the guide groove 104, and the guide roller 14 is provided at at least two positions in the first direction X of the carriage 10 (in the present embodiment, the first position of the carriage 10). One end side and the other end side in one direction X). Therefore, the carriage 10 can move along the first direction X while maintaining a parallel posture with respect to the first direction X.

  As shown in FIG. 2B, a guide rail 105 is laid along the first direction X on the floor surface 103. On the other hand, from the carriage 10, the arm 15 protrudes laterally, and a pair of guide bodies 16, 16 disposed at a predetermined interval in the second direction Y are provided at the tip of the arm 15. Yes. In the present embodiment, the pair of guide bodies 16 and 16 are constituted by guide rollers, and sandwich the guide rail 105 in the second direction Y. The arm 15 is provided at at least two positions in the first direction X of the carriage 10 (in this embodiment, one end side and the other end side in the first direction X of the carriage 10). Therefore, the carriage 10 can move along the first direction X while maintaining a parallel posture with respect to the first direction X, as in the combination of the guide groove 104 and the guide roller 14.

  The first base 20 is long in one direction, short in a direction orthogonal to the one direction, and flat in a direction orthogonal to these directions (vertical direction) or a welded structure (frame). Structure). The first base 20 is attached to the rotating part of the turntable 17 incorporated in the body 11 of the carriage 10. Therefore, the first base 20 can be rotated on the horizontal plane with respect to the carriage 10 by the turntable 17.

  Specifically, the first base 20 (with the second base 40 as a “base” according to the present invention) has a longitudinal direction perpendicular to the second direction Y, that is, the longitudinal direction of the carriage 10. And a turning posture (first turning posture: see FIG. 1 and FIG. 3) and a turning posture (second turning posture: figure) whose longitudinal direction coincides with the first direction X, that is, the longitudinal direction of the carriage 10. 4 and FIG. 5). Therefore, in this embodiment, the turntable 17 constitutes the “swivel mechanism” according to the present invention. In the present embodiment, the width in the short direction of the first base 20 and the width in the short direction of the carriage 10 are the same or substantially the same.

  The first base 20 is attached to the rotating part of the turntable 17 at a position on the other end side shifted from the center position in the longitudinal direction in the longitudinal direction. Therefore, in the first turning posture, one end portion side in the longitudinal direction of the first base 20 protrudes from the carriage 10 in the second direction Y, more precisely, in a direction away from the furnace 100.

  A jack structure 21 is provided at one end of the first base 20. The jack structure 21 includes a base fixed to the first base 20, and a cylinder 23 that extends downward from the base and engages the rail 102, more precisely, the rail 102 on the side away from the furnace 100. I have. As shown in FIG. 2C, a slit 23 a corresponding to the width of the rail 102 is formed at the tip of the cylinder 23. Therefore, in the first turning posture, when the cylinder 23 extends from the base, the slit 23 a of the cylinder 23 is engaged with the rail 102. In the present embodiment, the jack structure 21 constitutes a “reaction force receiving mechanism” according to the present invention.

  As with the first base 20, the second base 40 is long along one direction, short in a direction perpendicular to the one direction, and flat in a direction perpendicular to these directions (vertical direction). Or a welded structure (frame structure). However, in the present embodiment, the second base 40 is formed to be longer than the first base 20. In the present embodiment, the width of the second base 40 in the short direction and the width of the first base 20 in the short direction are the same or substantially the same.

  In the second base 40, one end of one link member 30 of the pair of link members 30 and 30 whose midpoints are rotatably connected is rotatably connected to the first base 20 and the other link. One end of the member 30 (one end on the side away from the furnace 100) is slidably connected to the first base 20 in the second direction Y, and the other end of the other link member 30 is the second base. 40, and the other end of the one link member 30 (the other end on the side away from the furnace 100) is slidably connected to the second base 40 in the second direction Y. Accordingly, the first base 20 can be moved toward and away from the first base 20, that is, can be moved up and down.

  Specifically, the second base 40 has a height posture (ascending posture: see FIG. 1) separated from the first base 20 when the link members 30 and 30 are raised, and the link members 30 and 30 are tilted. Thus, it is possible to move up and down between a height posture approaching the first base 20 (a lowered posture: see FIGS. 4 and 5). Therefore, in the present embodiment, the link members 30 and 30 and the actuator 31 for raising and lowering the link members 30 and 30, specifically, the cylinder body 32 and the rod 33 are provided. The side of the pair of link members 30, 30 is a cylinder that is rotatably connected to one end of one link member 30, and the tip end of the rod 33 is rotatably connected to the other end of the other link member 30. The actuator 31 that changes the crossing angle of the pair of link members 30 and 30 constitutes an “elevating mechanism” according to the present invention.

  The second base 40 includes a plurality of support rollers 41,... The support roller 41 is for supporting the movement of the ram 50 in and out (straight forward movement). In this embodiment, the support roller 41 and the plurality of support rollers 41 that support the ram 50 from below and the ram 50 are pressed down from above. And a support roller 41.

  A drive source 42 having a drive shaft having a pinion 43 that meshes with a rack 51 formed along the longitudinal direction of the ram 50 is attached to the second base 40. Then, when the drive shaft of the drive source 42 rotates in the forward direction, the pinion 43 rotates in the forward direction, whereby the ram 50 moves forward (advances), while the drive shaft of the drive source 42 rotates in the reverse direction, 43 reversely rotates, so that the ram 50 moves backward (withdraws).

  The scoop 52 attached to the tip of the ram 50 is composed of a pair of side plates 53 and 53 having a right triangle shape in a side view and a bottom plate 54 that closes a bottom opening of the pair of side plates 53 and 53. The scoop 52 is for burning coke in the furnace when the ram 50 moves forward and is inserted into the furnace.

  According to the coke discharging apparatus 1 having the above configuration, as shown in FIGS. 1 and 3, the height position of the second base 40 (in the vertical direction) so that the scoop 52 and the furnace port (lower part) face each other. ) Is positioned by the elevating mechanism 30, 30, 31, and the second base 40 (the angular position in the horizontal direction) is positioned by the turning mechanism 17 so that the longitudinal direction of the ram 50 and the second direction Y coincide with each other. In this state, the ram 50 moves forward and backward, so that the coke in the furnace is scraped out by the scoop 52 at the tip of the ram 50.

  Then, from this coke scraping work posture (deployment posture), the second base 40 is turned by the turning mechanism 17 so that the longitudinal direction of the ram 50 is along the first direction X, as shown in FIGS. When the second base 40 is lowered by the elevating mechanisms 30, 30, 31 (becomes a compressed posture), the coke discharging apparatus 1 has a space 106 formed between the extruder 101 and the floor surface 103. It becomes the size that can pass. Therefore, the coke discharging apparatus 1 can pass through the space of the extruder 101 even if the extruder 101 is on the way to the target furnace. Thereby, when the coke discharging apparatus 1 is moved, it is not necessary to move the extruder 101 to a place where the coke discharging apparatus 1 does not hit.

  On the contrary, the extruder 101 can avoid the coke discharging apparatus 1 through the space 106 formed between the extruder 101 and the floor surface 103. Therefore, during normal operation, the extruder 101 can move while avoiding the coke discharging apparatus 1 as it is even if the coke discharging apparatus 1 is on the way to the target furnace. Thereby, when the extruder 101 moves, the extruder 101 can be immediately moved to the target furnace.

  Therefore, according to the coke discharging apparatus 1 according to the present embodiment, it is possible to eliminate mutual interference with the extruder 101 that causes a reduction in the operating rate of the extruder 101 and, in turn, a reduction in coke productivity.

  Moreover, according to the coke discharging apparatus 1 according to the present embodiment, the cylinder 23 of the jack structure 21 is extended and engaged with the rail 102 on the side away from the furnace 100 during the clogging elimination work. Therefore, the reaction force generated when the ram 50 moves forward and the scoop 52 becomes clogged and crushes coke can be received by the rail 102 on the side away from the furnace 100, and the coke discharging device 1 falls or moves sideways. Can be suitably prevented.

  Further, according to the coke discharging apparatus 1 according to the present embodiment, the parallel posture with respect to the first direction X of the carriage 10 is achieved by the combined structure of the guide groove 104 and the guide roller 14 and the combined structure of the guide rail 105 and the guide body 16. Is preserved. Therefore, in the coke scraping work posture, the ram 50 can be made to coincide with the second direction Y, that is, the furnace length direction, and it is preferable that the ram 50 inserted into the furnace hits the furnace wall and damages the furnace wall. Can be prevented.

  The coke discharging apparatus according to the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention.

  For example, in the above-described embodiment, the coke discharging device is used to discharge the clogged coke when clogging occurs in the coke extrusion operation. However, the present invention is not limited to this. For example, when repairing a furnace wall, it can also be used to remove coke around the furnace port.

  Moreover, in the said embodiment, the trolley | bogie 10 was a self-propelled type which has the drive device 13. FIG. However, the present invention is not limited to this. For example, the carriage 10 may be rolled and moved by winding a winch rope.

  In the above embodiment, the ram 50 moves forward and backward by meshing the rack 51 provided in the ram 50 with the pinion 43 of the drive source 42. However, the present invention is not limited to this. As a means for moving the ram 50, various known means including a rope hoisting type can be adopted.

  In the above embodiment, the coke is scraped from the front of the coke oven on the extruder side. However, the present invention is not limited to this. For example, if a space is formed between the guide wheel and the floor surface, and the space can be passed through a coke discharging device in a compressed position, the coke is scraped from the front of the coke oven on the guide wheel side. May be performed.

  In the above embodiment, the turning mechanism 17 is provided between the carriage 10 and the first base 20, and the elevating mechanisms 30, 30, 31 are provided between the first base 20 and the second base 40. Is provided. However, the present invention is not limited to this. For example, elevating mechanisms 30, 30, 31 are provided between the carriage 10 and the first base 20, and the turning mechanism 17 is provided between the first base 20 and the second base 40. Good.

  In addition, the specific configurations of the turning mechanism, the lifting mechanism, and the reaction force receiving mechanism are not limited to the above-described embodiment, and a mechanism using an appropriate known technique or a combination thereof can be employed.

  In the above-described embodiment, the conversion from the compression posture to the coke scraping work posture is performed in the order of raising the second base 40 and then turning the second base 40. Also, the coke scraping is performed. The conversion from the working posture to the compressed posture is performed in the order of turning the second base 40 and then lowering the second base 40. However, the present invention is not limited to this. For example, raising and lowering and turning of the second base 40 may be performed at the same time, and if there is no interference with the moving machine (extruder or guide car), the order of raising and lowering and turning. May be reversed.

  In the above-described embodiment, the first turning posture and the second turning posture are set to a turning angle of 90 degrees. However, the present invention is not limited to this. For example, even if the second turning posture is slightly deviated from the first direction X, that is, the longitudinal direction of the carriage 10, if the space 106 formed between the extruder 101 and the floor surface 103 has a margin, it is acceptable. It is.

  Moreover, in the said embodiment, the scoop 52 is attached to the front-end | tip of the ram 50 as a coke scraping means. However, the present invention is not limited to this. As the coke scraping means, various forms including those described in the above-mentioned patent documents can be adopted.

  Moreover, in the said embodiment, the jack structure 21 which has the cylinder 23 which contact | abuts to the rail 102 of the side spaced apart from the furnace 100 is employ | adopted as a reaction force receiving mechanism when it expand | extends. However, the present invention is not limited to this. The floor surface 103 or a separately provided rail may receive the reaction force of the coke scraping.

  Another form of the reaction force receiving mechanism is shown in FIG. A long beam member 44 is rotatably attached to the second base 40, and the tip of the beam member 44 is engaged with the rail 102, whereby a reaction force is received. There are two beam members 44, one beam member 44 that engages with the rail 102 on the side away from the furnace 100 and the other beam member 44 that engages with the rail 102 on the side close to the furnace 100, but only one of them. May be. When the beam member 44 is subjected to a reaction force, it is restrained so as not to rotate by the reinforcing member 45. However, when the beam member 44 is not used, the restraint by the reinforcing member 45 is released, and the beam member 44 is Stored alongside.

  In addition, the combination structure of the guide groove 104 and the guide roller 14 and / or the combination structure of the guide rail 105 and the guide body 16 is not necessarily essential if the parallel posture of the carriage 10 with respect to the second direction Y can be obtained.

  Further, instead of the guide roller 14, a pin may enter the guide groove 104. In short, it is only necessary that a guide body such as the guide roller 14 or the pin enters the guide groove 104 so as to keep the parallel posture of the carriage 10 with respect to the second direction Y.

  In addition, the guide roller 14 can move the carriage 10 in a direction intersecting the second direction Y by making the guide groove 104 retractable or detachable.

  DESCRIPTION OF SYMBOLS 1 ... Coke discharging apparatus, 10 ... Carriage, 11 ... Body, 12 ... Wheel, 13 ... Drive apparatus, 14 ... Pin, 15 ... Arm, 16 ... Guide body (guide roller), 17 ... Turntable, 20 ... First Base, 21 ... Jack structure, 23 ... Cylinder, 23a ... Slit, 30 ... Link member, 31 ... Actuator, 32 ... Cylinder body, 33 ... Rod, 40 ... Second base, 41 ... Support roller, 42 ... Drive source, DESCRIPTION OF SYMBOLS 43 ... Pinion, 44 ... Beam material, 45 ... Reinforcement material, 50 ... Ram, 51 ... Rack, 52 ... Scoop, 53 ... Side plate, 54 ... Bottom plate, 100 ... Coke oven, 101 ... Extruder, 102 ... Rail, 103 ... Floor surface 104 ... Guide groove 105 ... Guide rail

Claims (5)

A cart that is arranged in front of the furnace on the extruder side or the guide vehicle side of the coke oven and moves along the direction of the coke oven furnace group;
A base disposed on the carriage;
A ram that is mounted on the base so as to be freely retractable and has a coke scraping means at the tip;
A turning mechanism for turning the base;
An elevating mechanism for elevating the base,
In a state where the base is swung by the swivel mechanism so that the longitudinal direction of the ram is along the moving direction of the carriage, and the base is lowered by the lifting mechanism, the extruder or the guide car is connected to the floor surface. Coke discharging device that can pass through the space formed between the two.   The coke discharging apparatus according to claim 1, further comprising a reaction force receiving mechanism that receives a reaction force that the coke scraping means receives from coke when the ram advances.   The reaction force receiving mechanism is a jack structure that is disposed on a side opposite to a direction in which the ram advances, and is engaged with an extruder side or a rail of a guide wheel, another rail, or a floor surface. The coke discharger as described.   The coke discharging apparatus according to any one of claims 1 to 3, wherein the turning mechanism is a turntable on which the base is attached directly or indirectly to turn the base.   The elevating mechanism is a pair of link members whose midpoints are rotatably connected, one end of one link member is rotatably connected to the cart side, and one end of the other link member is The other link member is rotatably connected to the base, and the other end of one link member is slidably connected to the base. The coke discharging apparatus according to any one of claims 1 to 4, comprising a pair of link members and an actuator that changes an intersection angle of the pair of link members.

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