JP6707919B2 - Coke oven clogging removal device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a coke clogging removal device for removing pressed clogging coke clogging in a coke oven carbonization chamber.

The chamber furnace type coke oven is configured by alternately connecting a large number of carbonization chambers and combustion chambers, charging coal in the carbonization chambers, and heating the combustion chambers through the furnace walls to a high temperature of 900°C to 1100°C. Is continuously added for about 20 hours, and coal is carbonized to produce 15 to 30 tons of coke per kiln. When this carbonization is complete, the coke is discharged and the coal is charged and heating is started again. The carbonization chamber has a height of about 6 m, a width of 0.45 m, and a length of about 16 m, and forms a furnace space that is extremely narrow and deep (long). The furnace bottom and furnace wall of the carbonization chamber are made of refractory bricks.

When coal carbonization in the carbonization chamber is completed and coke is formed, the extrusion ram of the extruder is inserted from the extruder side of the carbonization chamber and the coke is extruded from the opposite guide wheel side. At this time, there is a case where the coke is clogged in the carbonization chamber and the coke is not pushed out by the pushing force of the extruder. It is considered that carbon excessively adheres to the furnace wall of the carbonization chamber, or the furnace wall is worn due to long-term operation of the coke oven, and the coke is restrained by the worn portion of the furnace wall, which causes a clogged phenomenon.

When the coke is clogged, the red hot coke inside must be discharged by means other than the extruder. Conventionally, as described in Patent Document 1, a technique has been proposed in which a scoop is attached to a lower portion of a front surface of an extrusion ram of an extruder, and then the coke in the furnace is scraped out by moving the extrusion ram forward and backward. However, in this method, only the coke in the part where the scoop is mounted is scraped out, and in order to scrape out the coke in the other part in the height direction of the carbonization chamber, the scoop mounting position is changed each time and the mounting height is changed. There is a need. Also, since the extrusion beam and extrusion ram of the extruder are not water-cooled, if the extruder is inserted into the carbonization chamber for a long time to scrape off the coke, the wear of the ram, etc. will progress rapidly, and it will be longer than the normal service life. It is not preferable because it will reach the end of its life in a short period.

Patent Document 2 discloses a coke clogging removal device including a multi-joint arm at the tip of a self-propelled carriage and a crusher at the tip of the multi-joint arm. Patent Document 3 discloses a device using a hoe arm in place of the crusher of Patent Document 2.

Patent Document 4 discloses that a boom, an arm, and a bucket are connected to a boom provided on a carriage traveling in the lengthwise direction of the furnace, and the boom, the arm, and the bucket are each rotatable about a horizontal axis. There is. In the carbonization chamber in which the clogging has occurred, the boom and the arm are operated and the bucket is rotated, whereby the coke is crushed and dropped.

In Patent Document 5, a coke discharging device is provided separately from an extruder trolley in which an extruder is mounted, and the coke discharging device can pass through a space formed between the extruder and the floor surface to scrape out the coke. The ram is disclosed as a device capable of moving up and down and turning. When running, the ram is oriented in the length direction of the furnace so that it can pass through the space under the extruder. When the coke is discharged, the ram is swirled and inserted into the carbonization chamber in the length direction of the furnace to scrape out the blocked coke. A scoop is attached to the tip of the ram and the scoop is removed by advancing the scoop in the carbonization chamber.

Japanese Utility Model Publication No. 05-43083 JP, 2013-227478, A JP, 2005-71677, A JP, 7-316560, A JP, 2014-118496, A

In the coke clogging removal device described in Patent Documents 2 to 4, a device for scraping out the coke is provided at the tip of an arm mechanism such as an articulated arm provided on a carriage traveling in the furnace group length direction to remove the clogging coke. It travels to the position of the power carbonization chamber, and the arm mechanism is inserted into the carbonization chamber from the kiln port on the extruder side or the guide car side to scrape off the blocked coke. As described above, the carbonization chamber has a very narrow furnace width of about 0.45 m. Therefore, the arm mechanism to be inserted into the carbonization chamber has an extremely thin shape in the furnace width direction (reactor group length direction). On the other hand, it is necessary to secure the thickness in order to give rigidity to the arm mechanism, and the distance between the side surface of the arm mechanism and the furnace wall is a minimum narrow distance.

As described above, the arm mechanism of the coke clogging removal device to be inserted into the carbonization chamber cannot secure sufficient rigidity in the furnace width direction even if the thickness in the furnace width direction is maximally secured. The lateral movement of the arm mechanism during the removal work cannot be sufficiently suppressed. On the other hand, since the distance between the furnace wall of the carbonization chamber and the side surface of the arm mechanism is very small, the arm mechanism comes into contact with the furnace wall during coke removal work due to sideways shaking of the arm mechanism, and the furnace wall refractory is removed. It will cause damage.

The present invention relates to a coke clogging removing device that uses an arm mechanism provided on a carriage that travels in the longitudinal direction of a furnace group, and can suppress side movement of the arm mechanism during clogging coke removal work to prevent damage to the furnace wall refractory. A first object is to provide a clogging removal device.

When trying to remove clogged coke from the guide car side kiln, in order to prevent the coke discharged from the kiln mouth from scattering on the guide car side platform, the guide car is placed in the carburizing chamber in the carburizing chamber. It is necessary to insert an arm mechanism into the coke to discharge the coke stuck in the carbonization chamber. For that purpose, it is necessary for the coke clogging removal device to be able to enter below the guide wheel. As a result, the coke clogging removal device can be run in the length direction of the furnace without disturbing the operation of the guide vehicle.

Since the longitudinal direction of the base and the ram is oriented in the longitudinal direction of the furnace when the base is lowered, the one described in Patent Document 5 is large enough to pass through the space formed by the guide wheel and the floor surface. That is, it is possible to run the coke clogging removal device through the space below the guide vehicle in the furnace length direction. However, when the coke is discharged, the base is first lifted and then the turning mechanism is turned so that the longitudinal directions of the base and the ram are oriented in the furnace length direction. That is, since the longitudinal directions of the base and the ram face the furnace group length direction when ascending, the dust collecting hood of the guide car interferes with the guide car and raises the base and the ram when the guide car is arranged above the device. I can't. That is, in this device, coke cannot be removed while the guide grid is arranged.

The present invention is provided with a coke clogging removal device on the guide vehicle side, and when the device is not used, the coke clogging removal device can pass under the guide vehicle and travel in the furnace group length direction. A second object of the present invention is to provide a coke clogging removing device capable of removing clogging coke while the guide grid is arranged.

That is, the gist of the present invention is as follows.
(1) A coke blockage removing device for removing coke clogged in a carbonization chamber from a kiln opening of a chamber furnace type coke oven,
The coke clogging removal device includes a traveling carriage that travels in the length direction of the furnace, an elevating mechanism that elevates and lowers an upper frame that is provided on the traveling carriage, and a plurality of arms that are arranged on the upper frame and can rotate the arms relative to each other. An arm mechanism connected by a rotary shaft, and a guide mechanism arranged on the upper frame and provided on both sides of the arm mechanism in the furnace group length direction,
The guide mechanism has a guide frame that rotates around a guide rotation shaft on the upper frame, and the guide frame sandwiches the arm in proximity to a lateral side of the arm of the arm mechanism in the furnace group length direction,
The guide frame has an expansion and contraction stopper that expands and contracts with a stopper cylinder at its tip, and the tip of the expansion and contraction stopper can be pressed against the back stay,
Coke clogging removal, characterized in that a coke scraping tool is provided at the tip of the arm mechanism, and the coke clogged in the carbonization chamber is removed by operating the arm of the arm mechanism in the space sandwiched by the guide frames. apparatus.
(2) The guide frame of the guide mechanism rotates around the guide rotation shaft to change its position in accordance with the arm arrangement position of the arm mechanism, and the expansion/contraction stopper expands/contracts in accordance with the position of the guide frame. The coke blockage removing device as described in (1) above, characterized in that the tip of the expansion stopper is pressed against the back stay.
(3) The guide mechanism has a sub guide frame that slides and moves on the guide frame, and the position of the sub guide frame can be changed according to the arm arrangement position of the arm mechanism. ) Or the coke clogging removal apparatus as described in (2).
(4) The coke clogging according to any one of (1) to (3) above, wherein the arm mechanism is an arm mechanism dedicated to removing clogging of coke provided on the upper frame. Removal device.
(5) The coke clogging removal according to any one of (1) to (3) above, wherein the arm mechanism is an arm mechanism included in a general-purpose construction machine placed on the upper frame. apparatus.
(6) The traveling carriage is provided on the guide car side of the coke oven, the arm mechanism and the guide mechanism are rotated and folded on the upper frame, and the upper frame is lowered by the elevating mechanism, whereby the coke is clogged. The coke blockage removing device as described in any one of (1) to (5) above, wherein the removing device is capable of traveling in a length direction of a furnace group under a guide vehicle.

The coke clogging removal device of the present invention removes clogging coke in the carbonization chamber with an arm mechanism in which a plurality of arms are connected by a rotatable rotary shaft and a coke scraping tool at the tip of the arm mechanism. With the guide mechanism provided, the guide frame of the guide mechanism holds the arm close to the lateral side of the arm in the furnace group length direction, thereby suppressing lateral deviation of the arm mechanism during clogging coke removal work. Damage to wall refractories can be suppressed.

It is a side view which shows the situation in which the coke clogging removal apparatus of this invention is in the scraping position, (A) does not display the guide mechanism, (B) is a figure which does not describe a part of arm mechanism. is there. It is a top view showing the situation where the coke clogging removal device of the present invention is in the scraping position. It is a side view showing the situation where the coke clogging removal device of the present invention is in the storage position. It is a figure which shows the state in which the sub-guide frame of the coke clogging removal apparatus of this invention is in a deployment state. It is a figure which shows the coke clogging removal apparatus of this invention using a general purpose construction machine, (A) is a side view, (B) is a BB arrow line view. It is a figure which shows the condition which the coke clogging removal apparatus of this invention in a storage position passes the lower space of a guide vehicle.

The coke clogging removal device of the present invention will be described with reference to FIGS. In the coke clogging removing device of the present invention, the arm mechanism 22 and the guide mechanism 24 are arranged on the upper frame 21, as described later. In the side view, it is difficult to understand because both of them overlap each other. Therefore, in FIG. 1, the guide mechanism 24 is not displayed in (A) and a part of the arm mechanism 22 is not displayed in (B). Making it easier.

The present invention is a coke clogging removal device 18 for removing coke clogged in a carbonization chamber from a kiln opening of a chamber furnace type coke oven, which is either the extruder side of the carbonization chamber 1 or the guide car side kiln. Remove coke 3 from mouth 2. When the coke clogging removal device 18 of the present invention is provided on the guide vehicle side, a particularly excellent effect can be exhibited. Hereinafter, the case where the coke clogging removing device is provided on the guide vehicle side will be described as an example.

The coke clogging removing device 18 includes a traveling carriage 8 that travels in the furnace group length direction 41. When it is provided on the guide vehicle side, it is preferable that the traveling vehicle 8 travels on the existing fire extinguisher rail 11. When provided on the extruder side, it is preferable to use a traveling carriage that travels on the extruder rail.

The coke clogging removing device 18 includes a lifting mechanism 20 that lifts and lowers an upper frame 21 provided on the traveling carriage 8. Further, it has an arm mechanism 22 arranged on the upper frame 21 and connecting a plurality of arms 19 with a rotatable rotary shaft 34. During the coke removing operation, the upper frame 21 can be moved to the raised position and the arm mechanism 22 can be operated to insert the arm 19 of the arm mechanism 22 into the carbonization chamber 1. A coke scraping tool 23 is provided at the tip of the arm mechanism 22, and by operating the arm 19 of the arm mechanism 22, coke stuck in the carbonization chamber can be removed. When the coke removing work is not performed, the arm 19 of the arm mechanism 22 is housed, and then the upper frame 21 is lowered to have a compact shape, so that the traveling carriage 8 can easily travel in the furnace group length direction 41. The state in which the upper frame 21 is raised and the arm 19 of the arm mechanism 22 is inserted into the carbonization chamber is referred to as a "scraping position 42", and the state in which the arm 19 of the arm mechanism 22 is accommodated is referred to as a "storage position 43".

In the example shown in FIG. 1, the arm mechanism 22 has three arms 19, a first arm 19a, a second arm 19b, and a third arm 19c, and the first arm 19a is rotatable with respect to the upper frame 21 on a rotation shaft 34a. The first arm 19a and the second arm 19b are provided so as to be rotatable relative to each other on the rotation shaft 34b. The second arm 19b and the third arm 19c are rotatably provided on a rotary shaft 34c, and a coke scraping tool 23 is provided at the tip of the third arm 19c. 1 and 2 show a state in which the arm mechanism 22 is at the scraping position 42, the upper frame 21 is raised by the elevating mechanism 20, and the first arm 19a, the second arm 19b, and the third arm 19c are respectively By rotating the coke scraping tool 23 provided at the tip of the third arm, the coke scraping tool 23 provided at the tip of the third arm reaches a predetermined place where coke clogging occurs in the carbonization chamber. In the example shown in FIG. 6A, a water-cooled wheel type coke scraping tool 23 is used, and the second arm 19b is rotated from the upper side to the lower side while rotating the wheel. As a result, the wheel rotates and comes down while coming into contact with the coke, so that the clogged coke 3 that has come into contact with the coke is chopped down and can be discharged to the outside of the carbonization chamber. In FIG. 1(A), the coke scraping tool 23 is above the carbonization chamber 1 at the positions where the arms 19b and 19c are shown by solid lines, and the coke scraping at the positions where the arms 19b and 19c are shown by the two-dot chain lines. The tool 23 is below the carbonization chamber 1.

When the coke 3 in the carbonization chamber 1 is scraped by the arm mechanism 22 and the coke scraping tool 23, the coke scraping tool 23 and the coke 3 in the carbonization chamber 1 touch each other, so that the coke scraping tool 23 and the arm The entire mechanism 22 may shake in the width direction of the carbonization chamber 1 and may come into contact with the brick wall 4 forming the carbonization chamber 1 to be damaged.

The largest feature of the coke clogging removal device 18 of the present invention is that it has guide mechanisms 24 arranged on the upper frame 21 and provided on both sides of the arm mechanism 22 in the furnace group length direction 41. The guide mechanism 24 has a guide frame 25 that rotates around a guide rotation shaft 29 on the upper frame 21, and the guide frame 25 is provided adjacent to a side of the arm 19 of the arm mechanism 22 in the furnace group length direction 41. .. The arms 19 of the arm mechanism 22 are sandwiched from both sides of the arm mechanism 22 by the guide frames 25 of the guide mechanisms 24 provided on both sides of the furnace group length direction 41. Since the guide frame 25 is provided close to the arm 19, the arm 19 is guided by the guide frames 25 on both sides, and it is possible to suppress the swing of the arm 19 in the furnace group length direction 41. Providing the guide frame 25 close to the arm 19 means that the guide frame 25 and the arm 19 have a slight gap or are in a slight contact state.

The guide frames 25 arranged on both sides of the arm mechanism 22 have sufficient rigidity in the furnace length direction 41 in order to suppress the swing of the arm 19 arranged close to the guide frame 25 in the furnace length direction 41. There is a need. On the other hand, the guide frame 25 is provided so as to rotate about the guide rotation shaft 29 on the upper frame 21, and has a cantilever structure as it is, and has sufficient rigidity to prevent the arm 19 from swinging. Difficult to hold. In the present invention, the guide frame 25 has the expansion/contraction stopper 26 that expands/contracts with the stopper cylinder 30 at the tip thereof, and the stopper plate 32 at the end of the expansion/contraction stopper 26 can be pressed against the back stay 5. One end of the guide frame 25 is supported by the guide rotation shaft 29 on the upper frame 21, and the other end of the guide frame 25 is supported by pressing the stopper plate 32 at the tip of the expansion/contraction stopper 26 against the back stay 5. , It becomes a double-sided structure. Thereby, the shake of the guide frame 25 in the furnace group length direction can be suppressed.

The arm mechanism 22 moves with a slight clearance inside the guide frame 25 formed by a pair, or with a slight contact state in part. The width of the coke scraping tool 23 and the arm mechanism 2 shaft portion 33 that enters the carbonization chamber 1 of the arm mechanism 22 is, for example, 370 mm with respect to the minimum width of the kiln mouth 2 of 420 mm, the arm side surface 28, and one side of the brick wall 4. Although the interval is set to 25 mm, when the coke scraping tool 23 shakes the width of 25 mm on one side of the brick wall 4 in the width direction, the gap between the guide frame 25 and the arm side surface 28 becomes 10 mm geometrically. It is necessary to set the following intervals.

The guide frame 25 is a mechanism that rotates around the guide rotation shaft 29 on the upper frame 21, and the distance between the tip end position of the guide frame 25 and the backstay 5 depends on the stop position of the guide frame 25 around the guide rotation shaft 29. Changes. In the present invention, as described above, the guide frame 25 has the expansion/contraction stopper 26 that expands/contracts with the stopper cylinder 30 at the tip thereof, and is provided at the distance between the tip of the guide frame 25 and the back stay 5 at the stop position of the guide frame 25. Accordingly, the expansion/contraction stopper 26 can be expanded/contracted, and the stopper plate 32 at the tip of the expansion/contraction stopper 26 can be pressed against the back stay 5.

Before the arm mechanism 22 is expanded to the carbonization chamber 1 side, the guide mechanism 24 is rotated and expanded by the guide frame tilting cylinder 31 around the guide rotation shaft 29, and the stopper plate 32 connected in front of the expansion/contraction stopper 26 is connected. The back stay 5 made of H-shaped steel is pressed against the flange surface 6 side.

In order to prevent the arm 19 of the arm mechanism 22 from laterally swinging (swinging in the furnace group length direction), the frictional force between the stopper plate 32 at the tip of the expansion/contraction stopper 26 and the backstay 5 causes the arm 19 to move. It is necessary to maintain sufficient force to suppress the lateral shake. The maximum frictional force is determined as the product of the pressing force of the tip of the expansion/contraction stopper against the backstay 5 and the friction coefficient. The pressing force of the stopper plate 32 against the flange surface 6 of the back stay 5 can be adjusted by the propulsive force of the guide frame tilting cylinder 31. Further, in the guide frame 25 of the present invention, when the tip end of the expansion/contraction stopper 26 is pressed against the back stay 5, the guide frame 25 rotates and projects toward the carbonization chamber. Therefore, the rotation moment generated around the guide rotation shaft 29 of the guide frame 25 has a large value due to the own weight of the guide frame 25, and the pressing force for pressing the guide mechanism 24 against the backstay 5 is also only due to this rotation moment. Can be used as The coefficient of friction between the stopper plate 32 at the tip of the expansion/contraction stopper and the backstay 5 can be set to 0.6 to 0.7. As a result, the maximum frictional force, which is determined as the product of the pressing force and the friction coefficient, can exert a sufficient force to suppress the lateral shake of the arm mechanism 22.

As described above, the position of the arm 19 of the arm mechanism 22 changes the position of the arm according to the situation of removing the clogging coke in the carbonization chamber. The guide frame 25 of the guide mechanism 24 of the present invention rotates around the guide rotation shaft 29 and changes its position in accordance with the position of the arm 19 in the arm mechanism 22, thereby arranging the arm 19 in any position. The lateral shake of the arm 19 can be suppressed. Since the position of the guide frame 25 changes in this way, even if the position of the guide frame 25 changes due to the expansion/contraction of the expansion/contraction stopper 26 depending on the position of the guide frame 25, the tip end of the expansion/contraction stopper 26 is set to the back stay. It can be pressed against 5. The guide frame 25 of the guide mechanism 24 is rotated by the operation of the guide frame tilt cylinder 31 according to the position of the arm 19 of the arm mechanism 22, and the sub guide frame 27 described later is moved to an appropriate position. At this time, by moving the stopper cylinder 30, the stopper plate 32 of the expansion stopper 26 is always pressed against the flange surface 6 side of the back stay 5 made of H-shaped steel.

When the coke clogging removing device of the present invention is provided on the guide vehicle side, as described above, when the device is not used, the coke clogging removing device 18 can pass under the guide vehicle and travel in the furnace group longitudinal direction 41 ( (See FIG. 6).

As described above, in the present invention, the state in which the upper frame 21 is lifted and the arm 19 of the arm mechanism 22 is inserted into the carbonization chamber 1 is referred to as a "scraping position 42" (see FIGS. 1 and 2). A state in which the arm 19 of 22 is stored is referred to as a "storage position 43" (see FIG. 3). The traveling carriage 8 of the coke clogging removal device is the traveling carriage 8 traveling on the guide vehicle side fire engine rail 11, and at the storage position 43 where the arm is stored, the space where the fire extinguisher under the guide vehicle passes through is blocked by the coke clogging. The preferred situation can be created if the entire removal device 18 is capable of slipping through. Then, as shown in FIG. 3, the upper frame 21 is lowered by the operation of the elevating mechanism 20 and each arm 19 of the arm mechanism 22 is brought into a folded state, so that the arm mechanism 22 moves to the guide position at the storage position 43. The shape can pass through the lower space.

As described in detail above, the present invention includes the arm mechanism 22 and the guide mechanism 24 on the upper frame 21. The guide mechanism 24 has a guide frame 25 that rotates around a guide rotation shaft 29 on the upper frame 21. The guide frames 25 are provided on both sides of the arm 19 of the arm mechanism 22 in close proximity to each other to prevent the arm 19 from lateral movement. Here, the position of the arm 19 of the arm mechanism 22 can be widely changed depending on the position where the clogged coke in the carbonization chamber is removed. Also for the guide frame 25, it is preferable that the guide frame 25 is arranged close to the side thereof regardless of the position of the arm 19. However, unlike the arm mechanism 22, the guide mechanism 24 requires the tip of the expansion/contraction stopper 26 at the tip of the guide frame 25 to be in contact with the back stay 5, so that the position of the guide frame 25 is greatly changed during the coke removal operation. Cannot be changed to. Further, since the guide frame 25 needs to be folded small when it is in the storage position 43, the size cannot be freely expanded. For this reason, if the storage position 43 has a shape that can be folded sufficiently small, it may be difficult to sufficiently guide the arm 19 according to the movement range of the arm 19 of the arm mechanism 22.

In the present invention, preferably, as shown in FIG. 4, it has a sub guide frame 27 that slides and moves on the guide frame 25, and the position of the sub guide frame 27 is changed according to the position of the arm 19 of the arm mechanism 22. It can be changed. As a result, the sub guide frame 27 slides on the guide frame 25, and is in a stored state 45 at one slide end (two-dot chain line in FIG. 4) and in a deployed state 44 at the other slide end. (Solid line in FIG. 4). When the sub guide frame 27 is slid to the position of the storage state 45 as shown by the chain double-dashed line in FIG. 4, when the guide frame 25 is rotated around the guide rotation shaft 29 on the upper frame 21 to the storage position 43, As shown in FIG. 3, the guide frame 25 and the sub-guide frame 27 are compactly housed and can pass through the space under the guide car. On the other hand, when the sub-guide frame 27 is slid to the position of the deployed state 44 as shown by the solid line in FIG. 4, even when the arm 19 of the arm mechanism 22 removes the clogging coke located above the carbonization chamber 1. The sub-guide frame 27 can guide the side of the arm 19 to suppress the lateral shake of the arm 19.

In the example shown in FIGS. 1 to 4 described above, the arm 19 of the arm mechanism 22 is installed on the upper frame 21 via the rotary shaft 34a. That is, the arm mechanism 22 is the arm mechanism 9 provided on the upper frame 21 for removing coke clogging. As described above, it is preferable to provide the dedicated arm mechanism 9 because an optimum arm mechanism can be designed.

On the other hand, instead of providing the dedicated arm mechanism 9 as described above, as shown in FIG. 5, the arm mechanism 22 of the general-purpose construction machine 10 placed on the upper frame 21 may be used. In this case, the upper frame 21 provided on the traveling carriage 8 that travels in the furnace length direction 41 moves up and down by the elevating mechanism 20, and the general-purpose construction machine 10 is placed on the upper frame 21. The general-purpose construction machine 10 has an arm mechanism 22 in which a plurality of arms 19 are connected by a rotatable shaft. Further, the guide mechanism 24 arranged on the upper frame 21 has guide frames 25 which are provided on both sides of the arm mechanism 22 in the furnace group length direction 41 and which rotate around a guide rotation shaft 29 on the upper frame 21. The frame 25 is close to the side of the arm 19 of the arm mechanism 22 in the furnace group length direction 41 and sandwiches the arm 19. The guide frame 25 of the guide mechanism 24 has an expansion and contraction stopper 26 that expands and contracts with a stopper cylinder 30 at the tip thereof, and presses the tip of the expansion and contraction stopper 26 against the back stay 5 to suppress the shake of the guide frame 25 in the furnace group length direction. You can A coke scraping tool 23 is provided at the tip of the arm mechanism 22 of the general-purpose construction machine 10, and the coke clogged in the carbonization chamber is removed by operating the arm 19 of the arm mechanism 22 in the space sandwiched by the guide frames 25. be able to. In FIG. 5, the guide frame 25 shown by the solid line shows the situation in which it is located at the scraping position 42, and the guide frame 25 shown by the two-dot chain line shows the situation in which it is located at the storage position 43.

When the coke clogging removal device of the present invention is provided on the guide wheel side 55, as shown in FIG. 6, when the device is not used, the coke clogging removal device 18 passes through the side of the platform 54 below the guide wheel 51 and extends in the furnace group longitudinal direction. It is possible to drive to. Therefore, according to the present invention, the arm mechanism 22 and the guide mechanism 24 are convoluted on the upper frame 21 by rotating around the rotation axis whose axial direction is the furnace length direction, and the upper frame 21 is lowered by the elevating mechanism 20 to lower the coke. The clogging removal device 18 can pass under the dust collecting hood 53 of the guide wheel 51 so that it can travel in the furnace group length direction (see FIG. 6 ).

DESCRIPTION OF SYMBOLS 1 Carbonization chamber 2 Kiln mouth 3 Coke 4 Brick wall 5 Backstay 6 Backstay flange surface 8 Traveling trolley 9 Special arm mechanism 10 General-purpose construction machine 11 Fire engine rail 18 Coke clogging removal device 19 Arm 20 Lifting mechanism 21 Upper frame 22 Arm Mechanism 23 Coke scraping tool 24 Guide mechanism 25 Guide frame 26 Expansion/contraction stopper 27 Sub-guide frame 28 Arm side surface 29 Guide rotation shaft 30 Stopper cylinder 31 Guide frame tilting cylinder 32 Stopper plate 33 Arm mechanism 2 shaft portion 34 Rotation shaft 41 Furnace team longitudinal direction 42 Scraping position 43 Storage position 44 Unfolded state 45 Storage state 51 Guide wheel 52 Guide grid 53 Dust collecting hood 53 Guide wheel rail 54 Platform 55 Guide wheel side

Claims (6)

A coke blockage removing device for removing coke clogged in a carbonization chamber from a kiln opening of a chamber coke oven,
The coke clogging removal device includes a traveling carriage that travels in the furnace length direction, an elevating mechanism that elevates and lowers an upper frame that is provided on the traveling carriage, and a plurality of arms that are disposed on the upper frame and are capable of mutually rotating. An arm mechanism connected by a rotary shaft, and a guide mechanism arranged on the upper frame and provided on both sides of the arm mechanism in the furnace group length direction,
The guide mechanism has a guide frame that rotates around a guide rotation shaft on the upper frame, and the guide frame sandwiches the arm in proximity to a lateral side of the arm of the arm mechanism in the furnace group length direction,
The guide frame has an expansion and contraction stopper that expands and contracts with a stopper cylinder at its tip, and the tip of the expansion and contraction stopper can be pressed against the back stay,
Coke clogging removal, characterized in that a coke scraping tool is provided at the tip of the arm mechanism, and the coke clogged in the carbonization chamber is removed by operating the arm of the arm mechanism in the space sandwiched by the guide frames. apparatus. The guide frame of the guide mechanism is rotated around the guide rotation shaft to change its position in accordance with the arm arrangement position of the arm mechanism, and the expansion/contraction stopper is expanded/contracted according to the position of the guide frame. The coke clogging removal device according to claim 1, wherein a tip of the stopper is pressed against the back stay. The said guide mechanism has a sub-guide frame which slides and moves on the said guide frame, The position of a sub-guide frame can be changed according to the arm arrangement position of the said arm mechanism, The claim 1 or claim characterized by the above-mentioned. The coke blockage removing device according to item 2. The coke clogging removing device according to any one of claims 1 to 3, wherein the arm mechanism is an arm mechanism provided on the upper frame for removing coke clogging. The coke clogging removal device according to any one of claims 1 to 3, wherein the arm mechanism is an arm mechanism included in a general-purpose construction machine placed on the upper frame. The traveling carriage is provided on the guide car side of the coke oven, the arm mechanism and the guide mechanism are rotated and folded on the upper frame, and the upper frame is lowered by the elevating mechanism, whereby the coke clogging removing device is The coke blockage removing device according to any one of claims 1 to 5, wherein the coke blockage removing device is capable of traveling in a length direction of a furnace group under a guide vehicle.

Images