JP6631336B2 - Coke oven coke removal equipment - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a coke clog removing device for removing a press-clogged coke clogged in a coke oven carbonization chamber.

  The chamber-type coke oven has a large number of carbonization chambers and combustion chambers connected alternately. Charges coal into the carbonization chamber, and heats the carbonization chamber from the combustion chamber through the furnace wall to a high temperature of 900 ° C to 1100 ° C. Is continuously added for about 20 hours, and the coal is carbonized to produce 15 to 30 tons of coke per kiln. When the carbonization is completed, 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 very narrow and deep (long) furnace space. The furnace bottom and furnace wall of the coking chamber are made of refractory bricks.

  When coal coking in the coking chamber is completed and coke is formed, the extruder ram of the extruder is inserted from the extruder side of the coking chamber and coke is extruded from the opposite guide wheel side. At this time, coke may be clogged in the carbonization chamber, and a situation may occur in which coke is not extruded with the pushing force of the extruder. It is considered that carbon is excessively adhered to the furnace wall of the coking chamber, or the furnace wall is worn by the long-term operation of the coke oven, and the coke is restrained by the worn portion of the furnace wall, thereby causing a compaction phenomenon.

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

  Patent Literature 2 discloses a coke clogging removal device including a multi-joint arm at a tip of a self-propelled carriage and a crusher at a tip of the multi-joint arm. Patent Literature 3 discloses an apparatus using a hoe arm instead of the crusher of Patent Literature 2.

  Patent Literature 4 discloses a boom, an arm, and a bucket connected to the arm end provided on a bogie traveling in the furnace length direction, wherein the boom, the arm, and the bucket are each rotatable around a horizontal axis. I have. By operating the boom and the arm and rotating the bucket in the carbonized chamber where the clogging has occurred, the coke is scraped and dropped.

  Patent Literature 5 discloses that a coke discharge device is provided separately from an extruder truck equipped with an extruder, and the coke discharge device can pass through a space formed between the extruder and a floor surface to scrape coke. Discloses a device in which the ram can be raised and lowered and turned. When running, the ram is directed in the furnace length direction so that it can pass through the space under the extruder. When coke is discharged, the ram is turned and inserted into the coking chamber toward the furnace length direction to scrape clogged coke. A scoop is attached to the tip of the ram, and it is said that the scoop is moved forward in the carbonization chamber to eliminate clogged coke.

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

  In the coke clogging removal devices described in Patent Literatures 2 to 4, a device for scraping coke is provided at a tip of an arm mechanism such as an articulated arm provided on a bogie traveling in the furnace length direction to remove clogged coke. After traveling to the position of the coking chamber, the arm mechanism is inserted into the coking chamber from the kiln opening on the side of the extruder or the guide wheel to scrape out clogged coke. For example, if the traveling vehicle of the coke clogging removal device is installed on the guide vehicle side, the traveling vehicle can be a vehicle traveling on a fire extinguishing vehicle rail.

  If the frame on which the arm mechanism for coke scraping is placed is the upper frame, and if the upper frame can be moved up and down by the elevating mechanism, the upper frame is raised during coke scraping and the arm mechanism is inserted into the carbonization chamber, and when stored, If the upper frame is lowered after the arm mechanism is folded, the coke clog removal device can be made compact when stored, for example, when the coke clog removal device is run on the fire extinguishing car rail on the guide car side, This is preferable because it can pass through the space below the guide vehicle and move in the furnace group length direction.

  The width of the coking chamber in the furnace group length direction is as narrow as about 0.42 m, and the distance between the arm of the arm mechanism inserted into the coking chamber and the coking chamber furnace wall is extremely small. Therefore, in order to prevent contact between the arm and the furnace wall, it is important that the base supporting the arm mechanism does not tilt or deform. Further, since the arm mechanism is inserted into the elongated carbonized chamber, it is necessary to sufficiently maintain the parallelism between the arm mechanism and the carbonized chamber.

  On the other hand, in the work to remove clogged coke using the coke scraping tool provided at the end of the arm mechanism of the coke clog removal device, the coke receives a reaction force from coke, and the device minimizes tilt and deformation with respect to the reaction force. Need to be suppressed. However, when the traveling bogie is run on the fire extinguishing car rail, the rail interval between the fire extinguishing car rails is narrow, and the bogie may be tilted by the reaction force received by the coke scraping tool from the coke. In addition, in the case where the lifting mechanism that raises and lowers the upper frame is provided, the rigidity of the lifting mechanism is not so high, and the structure is deformed by the reaction force received by the coke scraping tool from the coke.

  The present invention is directed to a coke clog removal device having a traveling vehicle traveling on rails and an upper frame that moves up and down on the traveling vehicle, while suppressing tilting and deformation of the device and between an arm mechanism inserted into a carbonization chamber and a carbonization chamber. An object of the present invention is to provide a coke clog removal device for a coke oven which can secure the parallelism of the coke.

That is, the gist of the present invention is as follows.
(1) A coke clogging removing device for removing coke clogged in a carbonization chamber from a kiln opening of a room furnace type coke oven,
The coke clogging and clogging removal device includes a traveling vehicle that travels in a furnace group length direction, an elevating mechanism that moves up and down an upper frame provided on the traveling vehicle, and a rotating shaft that is disposed on the upper frame and that can rotate a plurality of arms. Having an arm mechanism connected at the end, having a coke scraping tool at the tip of the arm mechanism,
The coke oven side of the upper frame has a plurality of furnace-side telescopic frames, the anti-coke furnace side of the upper frame has a plurality of anti-furnace-side telescopic frames, and the upper frame is raised by the elevating mechanism. The coke clogging and removing apparatus is characterized in that the furnace-side telescopic frame can be extended and pressed against a coke oven-side fixed object, and the non-furnace-side telescopic frame can be extended and pressed against the anti-coke furnace-side fixed object.
(2) The coke oven-side fixed object is a coke oven-side rail frame on which a guide vehicle travels, and the anti-coke furnace-side stationary object is a rail frame structure on which a guide vehicle and an associated dust collecting hood travel. The coke clogging removal device according to the above (1), wherein
(3) A coke clogging removal device for removing coke clogged in a carbonization chamber from a kiln opening of a room furnace type coke oven,
The coke clogging and clogging removal device includes a traveling vehicle that travels in a furnace group length direction, an elevating mechanism that moves up and down an upper frame provided on the traveling vehicle, and a rotating shaft that is disposed on the upper frame and that can rotate a plurality of arms. Having an arm mechanism connected at the end, having a coke scraping tool at the tip of the arm mechanism,
The coke oven side of the upper frame has a plurality of support frames that rotate or expand and contract on the upper frame, and the coke oven side end of the support frame has a gripping device or an electromagnet, and the lifting mechanism moves the upper frame. When the support frame is raised, the support frame can be rotated or extended to connect the end of the support frame on the coke oven side to the backstay by the gripping device or the electromagnet.
(4) The coke jam according to any one of the above (1) to (3), wherein the arm mechanism is an arm mechanism dedicated to coke jam removal provided on the upper frame. Removal device.
(5) The coke removal according to any one of (1) to (3), wherein the arm mechanism is an arm mechanism of a general-purpose construction machine mounted on the upper frame. apparatus.

  The present invention relates to a coke clogging removal device for removing coke clogged in a carbonization chamber from a kiln opening of a room furnace type coke oven, wherein a plurality of furnace-side telescopic frames arranged on a coke oven side of an upper frame are extended to coke. By pressing against the fixed object on the furnace side, extending the plurality of telescopic frames on the anti-coke furnace side arranged on the anti-coke furnace side, and pressing against the fixed object on the anti-coke furnace side, the upper frame is moved up by the lifting mechanism to remove the coke. At this time, the inclination and deformation of the device can be suppressed, and the parallelism between the arm mechanism inserted into the carbonization chamber and the carbonization chamber can be ensured.

It is a side view showing an example of a coke clog removal device of the present invention. It is a top view showing an example of a coke clog removal device of the present invention. FIG. 1 (A) is a plan view, and FIG. 1 (B) is a side view, showing an example of a coke clogging removal device of the present invention. It is a side view showing an example of a coke clog removal device of the present invention. It is a top view showing an example of a coke clog removal device of the present invention. It is a side view showing an example of a coke clog removal device of the present invention. It is a side view showing an example of a coke clog removal device of the present invention.

  The blockage coke removing device of the present invention will be described with reference to FIGS. 2 is a plan view of FIG. 1, and FIG. 5 is a plan view of FIG.

  The present invention relates to a coke clogging removing device 18 for removing coke clogged in a coking chamber from a kiln opening of a coke oven, and comprises a kiln on either the extruder side or the guide wheel side of the coking chamber 1. Remove coke 3 from mouth 2. Particularly excellent effects can be exhibited when the coke clog removal device 18 of the present invention is provided on the guide wheel side. Hereinafter, a case where the coke clog removal device is provided on the guide wheel side will be described as an example.

  The coke clog removal device 18 has a traveling vehicle 17 that travels in the furnace group length direction 51. When provided on the guide vehicle side, it is preferable that the traveling vehicle 17 travel on the existing fire extinguishing vehicle rail 11. When it is provided on the extruder side, it is preferable to use a traveling cart that travels on the extruder rail.

  The coke clog removal device 18 has an elevating mechanism 20 that elevates and lowers an upper frame 21 provided on the traveling carriage 17. In addition, an arm mechanism 22 is provided on the upper frame 21 and connects the plurality of arms 19 with the rotatable rotation shaft 12. During the coke removal operation, the upper frame 21 is set at the raised position, and the arm mechanism 22 is 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. By operating the arm 19 of the arm mechanism 22, coke clogged in the carbonization chamber can be removed. When the coke removal operation is not performed, the arm 19 of the arm mechanism 22 is housed, and the upper frame 21 is lowered to a compact shape, so that the traveling carriage 17 travels easily in the furnace length direction 51.

  In the example shown in FIGS. 1 to 6, the arm mechanism 22 has three arms 19 of a first arm 19a, a second arm 19b, and a third arm 19c, and the first arm 19a rotates on the rotation shaft 12a to the upper frame 21. The first arm 19a and the second arm 19b are provided so as to be mutually rotatable about the rotation shaft 12b. The second arm 19b and the third arm 19c are provided so as to be mutually rotatable about the rotation shaft 12c, 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, 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 The coke scraping tool 23 provided at the distal end of the third arm is rotated by the rotary drive device to reach a predetermined location in the coking chamber where the coke is clogged. In the example shown in FIGS. 1 and 2, the second arm 19b is rotated downward from above while rotating the wheel using a coke scraping tool 23 of a water-cooled wheel type. As a result, the wheel rotates and descends while being in contact with the coke, so that the clogged coke 3 in contact with the coke is broken down, so that the coke 3 can be discharged to the outside of the carbonization chamber. In FIG. 1, the coke scraping tool 23 is located above the carbonization chamber 1 when the arms 19b and 19c are indicated by solid lines, and the coke scraping tool 23 is positioned when the arms 19b and 19c are indicated by two-dot chain lines. It is below the carbonization chamber 1.

  When the coke 3 in the coking 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 coking chamber 1 come into contact with each other. The whole mechanism 22 receives the reaction force and the vibration, and the position of the upper frame 21 shifts or vibrates, so that stable work cannot be performed. The upper frame 21 is generally unstable because it is moved up and down by the elevating mechanism 20, but this method is effective for reducing the weight and size of the entire apparatus.

  As described above, when the traveling vehicle 17 travels on the fire extinguishing vehicle rail 11, the rail interval between the fire extinguishing vehicle rails 11 is narrow, and the bogie may be tilted by the reaction force received by the coke scraping tool 23 from the coke 3. In addition, since the elevating mechanism 20 for raising and lowering the upper frame 21 is provided and the rigidity of the elevating mechanism 20 is not so high, the structure is deformed by the reaction force received by the coke scraping tool 23 from the coke 3. There is a possibility that the coke scraping tool 23 and the entire arm mechanism 22 swing in the width direction of the coking chamber 1 and come into contact with the brick wall 4 constituting the coking chamber 1 to be damaged. Further, since the arm mechanism 22 is inserted into the elongated carbonized chamber, it is necessary to sufficiently maintain the parallelism between the arm mechanism 22 and the carbonized chamber 1.

  The present invention can solve the above-mentioned problems by the first and second embodiments described below. Hereinafter, the first aspect and the second aspect will be sequentially and specifically described.

<< First aspect >>
In the first embodiment of the present invention, a plurality of furnace-side telescopic frames 40 are provided on the coke oven side 52 of the upper frame 21, and a plurality of non-furnace-side telescopic frames 41 are provided on the anti-coke furnace side 53 of the upper frame 21. Have. The furnace-side telescopic frame 40 can be individually expanded and contracted by a furnace-side telescopic frame cylinder 42, and the anti-furnace-side telescopic frame 41 can be individually expanded and contracted by a non-furnace-side telescopic frame cylinder 43. When the upper frame 21 is raised by the lifting mechanism 20, the furnace-side telescopic frame 40 is extended and pressed against the coke oven-side fixed object 7. Further, the non-furnace-side telescopic frame 41 can be extended and pressed against the non-coke oven-side fixed object 8. If the installation position of the coke clog removal device 18 is on the guide car side and the coke oven side fixed object 7 is configured to run on the fire extinguishing car rail 11, the coke oven side rail frame 7a (the second Rail frame) can be suitably used. In addition, as the anti-coke oven side fixed object 8, an anti-coke oven side rail frame 8a (third rail frame) in which a guide vehicle and an associated dust collection hood run can be used. Both have sufficient rigidity as a fixing partner. When two furnace-side telescopic frames 40 and two non-furnace-side telescopic frames 41 are provided, the upper frame 21 is firmly fixed because it is pressed against the furnace-side and non-furnace-side fixed objects by a total of four telescopic frames. The Rukoto. Thereby, the upper frame 21 can be stabilized. In the work to remove clogged coke using the coke scraping tool provided at the end of the arm mechanism of the coke clog removal device, even when receiving a reaction force from coke, the coke scraping work without tilting or deforming the device Can be performed stably.

  The furnace-side telescopic frame 40 can be operated by a furnace-side telescopic frame cylinder 42, and the anti-furnace-side telescopic frame 41 can be operated by a non-furnace-side telescopic frame cylinder 43 to adjust the amount of expansion and contraction. Since the positions of the four extendable frames can be adjusted independently, fine adjustment of the position and orientation in a horizontal plane parallel to the ground surface can be performed. That is, parallel adjustment in the axial direction of the arm mechanism and the axial direction of the carbonization chamber can be performed by individually adjusting the extension amount of each telescopic frame.

  In the examples shown in FIGS. 1 and 2, each of the furnace-side telescopic frame 40 and the non-furnace-side telescopic frame 41 has three cylinders. Among them, the middle cylinder is the furnace-side telescopic frame cylinder 42 and the non-furnace-side telescopic frame cylinder 43, and the cylinders are expanded and contracted by operations such as hydraulic pressure. The cylinders on each side are cylinders for supporting the frame at the tip.

  When the coke clog removal operation is completed, the furnace-side telescopic frame 40 and the non-furnace-side telescopic frame 41 are contracted to release the fixation, the arm mechanism 22 is stored, and the upper frame 21 is lowered (see FIG. 3).

<< Second Aspect >>
In the second embodiment of the present invention, as shown in FIGS. 4 to 6, the coke oven side 52 of the upper frame 21 has a plurality of support frames 25 that rotate or expand and contract on the upper frame 21. 4 to 6 all show a mode in which the support frame 25 is rotated. When rotating the support frame 25, the support frame 25 on the upper frame 21 is rotated about the frame rotation shaft 29 using the support frame tilt cylinder 31, and is rotated toward the carbonization chamber 1. When the support frame 25 is expanded and contracted, it can be expanded and contracted by a support frame expansion and contraction cylinder (not shown). The supporting frame 25 has a gripping device 32 or an electromagnet 33 at the end on the coke oven side. 4 and 5 show an example having the gripping device 32, and FIG. 6 shows an example having the electromagnet 33. The holding device 32 is a holding device cylinder 30, and the electromagnet 33 is an electromagnet cylinder 34, which can adjust the position in the direction of the carbonization chamber 1. The gripping device 32 has a function of gripping the end surface of the backstay 5 by gripping the flange surface 6 from the flange surface 6 side of the backstay 5 made of H-shaped steel. The electromagnet 33 can be fixed to the end face of the back stay 5 by magnetic force by pressing the electromagnet 33 against the flange surface 6 and supplying electricity to the electromagnet 33.

  When the upper frame 21 is raised by the elevating mechanism 20, the support frame 25 is rotated or extended to connect the coke oven side end of the support frame 25 to the backstay 5 by the gripping device 32 or the electromagnet 33. When two support frames 25 are provided, each support frame 25 is connected to the back stay 5 to stabilize the upper frame 21 and to position the apparatus against the reaction force received from the coke 3 when removing the clogged coke. Clogging can be removed without causing displacement or vibration. Also, by connecting each support frame 25 to the back stay 5 and adjusting the amount of expansion and contraction of the gripper cylinder 30 or the electromagnet cylinder 34, the axial direction of the arm mechanism 22 and the axial direction of the carbonization chamber 1 are parallel. Adjustments are possible.

  When the work for removing the coke clog is completed, the fixing to the back stay 5 by the gripping device 32 or the electromagnet 33 is released, the arm mechanism 22 and the support frame 25 are stored, and the upper frame 21 is lowered.

  The position of the support frame 25 on the upper frame 21 is desirably separately provided at both ends in the furnace group length direction 51 in order to stabilize the upper frame 21 and finely adjust the position in a horizontal plane parallel to the ground surface.

《Common mode》
An aspect common to the first aspect and the second aspect will be described below.

  In the example shown in FIGS. 1 to 6 described above, the arm 19 of the arm mechanism 22 is installed on the upper frame 21 via the rotating shaft 12a. That is, the arm mechanism 22 is the arm mechanism 9 provided on the upper frame 21 and dedicated to removing the clogged coke. As described above, it is preferable to provide the dedicated arm mechanism 9 because an optimal arm mechanism can be designed.

  On the other hand, instead of providing the dedicated arm mechanism 9 as described above, an arm mechanism 22 of the general-purpose construction machine 10 mounted on the upper frame 21 may be used as shown in FIG. In this case, the upper frame 21 provided on the traveling carriage 17 traveling in the furnace group length direction 51 is moved 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 rotation shaft. 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 jammed in the carbonization chamber is removed by operating the arm 19 of the arm mechanism 22 in a space sandwiched between the support frames 25. be able to.

DESCRIPTION OF SYMBOLS 1 Carbonization room 2 Kiln mouth 3 Coke 4 Brick wall 5 Back stay 6 Back stay flange surface 7 Coke oven side fixed object 7a Coke oven side rail frame 8 Anti coke oven side fixed frame 8a Anti coke oven side rail frame 9 Dedicated arm mechanism DESCRIPTION OF SYMBOLS 10 General-purpose construction machine 11 Fire extinguishing car rail 12 Rotating shaft 17 Traveling trolley 18 Coke clog removal device 19 Arm 20 Elevating mechanism 21 Upper frame 22 Arm mechanism 23 Coke scraping tool 25 Support frame 26 Telescopic stopper 29 Frame rotating shaft 30 Gripping device cylinder 31 Support frame tilting cylinder 32 Gripping device 33 Electromagnet 34 Electromagnet cylinder 40 Furnace-side telescopic frame 41 Non-furnace-side telescopic frame 42 Furnace-side telescopic frame cylinder 43 Non-furnace-side telescopic frame cylinder 51 Furnace length direction 52 Coke oven side 53 Anti-coke oven side

Claims (5)

A coke clogging removal device for removing coke clogged in a carbonization chamber from a kiln opening of a room furnace type coke oven,
The coke clogging and clogging removal device includes a traveling vehicle that travels in a furnace group length direction, an elevating mechanism that moves up and down an upper frame provided on the traveling vehicle, and a rotating shaft that is arranged on the upper frame and that can rotate a plurality of arms. An arm mechanism connected by a, having a coke scraping tool at the tip of the arm mechanism,
The coke oven side of the upper frame has a plurality of furnace-side telescopic frames, the anti-coke furnace side of the upper frame has a plurality of anti-furnace-side telescopic frames, and the upper frame is raised by the elevating mechanism. The coke clogging and removing apparatus is characterized in that the furnace-side telescopic frame can be extended and pressed against a coke oven-side fixed object, and the non-furnace-side telescopic frame can be extended and pressed against the anti-coke furnace-side fixed object.   The coke oven-side fixed object is a coke oven-side rail frame on which a guide vehicle travels, and the anti-coke oven-side stationary object is a rail frame structure on which a guide vehicle and an associated dust collection hood run. 2. The apparatus for removing clogged coke according to 1. A coke clogging removal device for removing coke clogged in a carbonization chamber from a kiln opening of a room furnace type coke oven,
The coke clogging and clogging removal device includes a traveling vehicle that travels in a furnace group length direction, an elevating mechanism that moves up and down an upper frame provided on the traveling vehicle, and a rotating shaft that is arranged on the upper frame and that can rotate a plurality of arms. An arm mechanism connected by a, having a coke scraping tool at the tip of the arm mechanism,
The coke oven side of the upper frame has a plurality of support frames that rotate or expand and contract on the upper frame, the coke oven side end of the support frame has a gripping device or an electromagnet, and the lifting mechanism moves the upper frame. When the support frame is raised, the support frame can be rotated or extended to connect the end of the support frame on the coke oven side to the backstay by the gripping device or the electromagnet.   The coke clog removal device according to any one of claims 1 to 3, wherein the arm mechanism is an arm mechanism provided on the upper frame and dedicated to coke clog removal.   4. The coke jam removal device according to claim 1, wherein the arm mechanism is an arm mechanism of a general-purpose construction machine mounted on the upper frame. 5.

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