JP6602179B2 - Coke oven coke side self-propelled backstay replacement machine - Google Patents

Description

  The present invention relates to a self-propelled backstay replacement machine suitable for CS backstay replacement work in coke oven repair work.

  The coke oven CS (Coke Side; the side with the guide car) has a guide car rail, a train rail, and a conveyor facility for carrying out coke, and there is no space for installing heavy machinery. In this case, the guide vehicle runs on the guide vehicle rail just beside the CS backstay. Above the guide rail, there are power supply facilities, dust collection ducts, and beams that hold them. That is, they are also present in the middle of the furnace.

  As this type of backstay repair device, for example, Patent Document 1 discloses a main carriage that runs on the front or rear platform of the furnace and a furnace length direction of the coke oven (in the furnace group length direction) that is placed on the main carriage. A backstay exchanging device having a child cart that can move back and forth in an orthogonal direction is disclosed. Such a cart needs to be retracted from the guide vehicle rail when the guide vehicle travels. Therefore, even if such a cart is used, the cart between the furnaces is sandwiched between the guide cars from the front and the back, and it is extremely difficult to lift and load the backstay. Therefore, a method of setting a carriage between the furnaces and drawing backstays from the middle part of the furnaces can be considered.

JP 2001-11466 A

  However, in the method of retracting the backstay from the middle part of the furnace, it is time-consuming to pay attention to the safety from the lateral pulling of the backstay to the carriage (and vice versa), requiring skill of skilled workers and taking time. Not only will the cost be high. Also, in hot repairs while the furnace is running, it is necessary to prevent the cart from obstructing the movement of the guide vehicle. However, it is practically difficult to respond to such a request because the cart is always in the rail. is there. Furthermore, there is a problem that the carriage itself is difficult to carry in or take out from a predetermined place of the guide vehicle rail (particularly in the middle part).

  The present invention has been made in view of such circumstances, and an object thereof is to provide a coke oven coke side self-propelled backstay replacement machine capable of accurately and quickly replacing a backstay while realizing high safety and efficiency. .

  The coke oven coke side self-propelled backstay replacement machine of the present invention is configured to run in a self-propelled manner and perform the replacement work in order to repair the back stay installed in the coke oven coke side. A backstay replacement machine, a base capable of running on a rail laid along the length of the furnace group in the vicinity of the coke oven coke side, and a direction perpendicular to the rail via a guide mechanism on the base An intermediate bed supported so as to be slidable, an upper turning base supported on the intermediate bed so as to be rotatable around a vertical axis via a drive mechanism, and an elevating mechanism on the upper turning base. And a chuck device that is supported so as to be movable up and down and that grips the back stay and supports the back stay so as to be rotatable about a horizontal axis.

  Further, in the coke oven coke side self-propelled backstay replacement machine according to the present invention, the base is supported by a rail traveling wheel that travels on the rail and is retractably supported by the base, and can travel in a direction orthogonal to the rail. It has traverse wheels and is controlled to reciprocate in an intermediate deck between the coke ovens.

  Further, in the coke oven coke side self-propelled backstay replacement machine of the present invention, the chuck device has a plurality of chucking claws for gripping a predetermined portion of the backstay.

  In the coke oven coke side self-propelled backstay replacement machine according to the present invention, the traverse wheel is configured to be steerable.

  According to the present invention, the work time for replacement of the backstay can be greatly shortened. In addition, the efficiency and safety of hot repair work while operating the furnace is greatly improved, and when it is necessary, it can be immediately retreated from the guide rail, so the risk of affecting the operation of the coke oven is greatly reduced. Play.

It is a top view of the coke oven equipment which concerns on embodiment of this invention. It is a figure which shows the structural example around the coke oven which concerns on embodiment of this invention. It is a side view of the backstay replacement machine in the embodiment of the present invention. It is a rear view of the backstay replacement machine in the embodiment of the present invention. It is a top view of the backstay replacement machine in the embodiment of the present invention. It is the upper side figure and side view which show the drive mechanism periphery of the upper turning base which concerns on embodiment of this invention. It is a front view around the chucking head of the chuck device concerning an embodiment of the present invention. It is a figure which shows the operation example of the backstay replacement machine in embodiment of this invention. It is a figure which shows the operation example of the backstay replacement machine in embodiment of this invention. It is a figure which shows the operation example of the backstay replacement machine in embodiment of this invention. It is a figure which shows the operation example of the backstay replacement machine in embodiment of this invention. It is a figure which shows the operation example of the backstay replacement machine in embodiment of this invention. It is a figure which shows the operation example of the backstay replacement machine in embodiment of this invention. It is a figure which shows the operation example of the backstay replacement machine in embodiment of this invention. It is a figure which shows the operation example of the backstay replacement machine in embodiment of this invention. It is a figure which shows the operation example of the backstay replacement machine in embodiment of this invention.

Hereinafter, preferred embodiments of a coke oven coke side self-propelled backstay replacement machine according to the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of a coke oven facility, and FIG. 2 is a cross-sectional view showing an example around the coke oven. First, the outline will be described. As shown in FIG. 2, in the coke oven 100, the carbonization chambers 102 and the combustion chambers 103 are alternately arranged above the heat storage chamber 101 (in the direction orthogonal to the plane of FIG. 2, ie, the arrow Y in FIG. 1; It forms a furnace group. The carbonization chamber 102 is a chamber for making coke by steaming coal. The combustion chamber 103 is a chamber for burning fuel gas, and is constructed from bricks. The coke oven 100 is basically made of brick, and is configured by stacking many bricks. In FIG. 1, it has 3 furnace group formations and 2 furnace group formations, and includes 1 A to 5 B furnace groups along the furnace group length direction Y.

  Each carbonization chamber 102 has a depth of about a few dozen meters (FIG. 2, arrow X direction), and blended and pulverized coal which is a coke raw material is input. As schematically shown in FIG. 2, back stays 104 that are reinforcing structures (supports) are erected at substantially the same height as the combustion chamber 103 at both ends in the depth direction X of the combustion chamber 103. An extruder 105 is provided on the PS (Pusher Side) of the furnace group, and a guide wheel 106 is provided on the CS (Coke Side). Further, the PS and CS of the furnace group each have a platform 107 along the furnace group length direction Y.

  The CS of the coke oven 100 further includes a rail 109 of the fire extinguisher and train 108, a guide vehicle rail 110, a guide vehicle power supply equipment 111, a guide vehicle dust collection duct 112, a kiln dust collection duct 113, and a coal charge. A vehicle dust collection duct 114 and the like are installed. Note that the guide vehicle rail 110 includes a third rail 110A, all of which function as a guide vehicle rail. Among them, the guide vehicle power supply equipment 111, the guide vehicle dust collection duct 112, the kiln entrance dust collection duct 113, and the like have a structure that is held at a high position by a beam 115, a support column, or the like that straddles the rail 109 of the train 108. . As described above, a large number of facilities or devices attached to the coke oven 100 are installed in the vicinity of the range in which the CS guide vehicle travels, making it difficult to perform CS backstay replacement work.

  The coke oven coke side self-propelled backstay replacement machine of the present invention is configured to run in a self-propelled manner and perform the replacement work in order to repair the backstay 104 installed in the coke oven 100. . 3-5 has shown the structural example of the backstay replacement machine 10 in this embodiment. 3 is a side view of the backstay replacement machine 10, FIG. 4 is a rear view thereof, and FIG. 5 is a top view thereof. The backstay replacement machine 10 is typically installed in the CS of the coke oven 100 and can reciprocate on the guide rail 110 laid on the platform 107. In FIGS. A state where the machine 10 is on the guide rail 110 is shown.

  The basic structure of the backstay changer 10 is as follows. With reference to FIGS. 3 to 5, the base 11 that can run on the guide rail rail 110 laid along the length of the furnace group on the CS platform of the coke oven 100. And an intermediate bed 12 supported on the base 11 via a guide mechanism 13 so as to be slidable in a direction orthogonal to the guide vehicle rail 110, and rotatable about a vertical axis on the intermediate bed 12 via a drive mechanism 15. The upper turning base 14 supported on the upper turning base 14 and a chuck device which is supported on the upper turning base 14 via an elevating mechanism 17 so as to be movable up and down, and holds the back stay 104 so as to be rotatable about a horizontal axis. 16.

  The base 11 is formed in a substantially rectangular thin box shape, and has four rail running wheels 18 so as to correspond to the four corners of the rectangle. Each rail traveling wheel 18 rolls on the guide vehicle rail 110, and the base 11 can reciprocate along the furnace group length direction Y. As shown in FIG. 4, an electric motor 19 for driving the rail traveling wheel 18 is mounted on the base 11, and the rail traveling wheel 18 is rotationally driven by the power of the electric motor 19 through power transmission means such as a chain or a belt. .

  The intermediate bed 12 is formed in a substantially rectangular thin box shape, and is slidable along the direction perpendicular to the guide vehicle rail 110, that is, in the depth direction X via the guide mechanism 13. For example, a linear motion guide or the like is used as the guide mechanism 13, a pair of guide rails 20 are laid in the depth direction X on the base 11, and a slider 21 that can slide on the guide rails 20 is attached to the lower surface of the intermediate bed 12. . As a drive source of the guide mechanism 13, for example, a drive cylinder 22 is provided between the guide rails 20, and the intermediate bed 12 can reciprocate along the depth direction X by the expansion / contraction operation of the drive cylinder 22.

  The upper turning base 14 is supported on the intermediate bed 12 so as to be rotatable about the vertical axis via a bearing. A pinion & wheel gear mechanism is used as the drive mechanism 15 of the upper turning base 14, and the pinion gear 23 arranged on the intermediate bed 12 side and the upper turning base 14 side as shown in FIGS. 6 (A) and 6 (B). The wheel gears 24 meshed with each other. The wheel gear 24 is pivotally supported about the vertical axis Z, and the pinion gear 23 is rotationally driven via a speed reducer 26 with an electric motor 25 as a drive source.

  As an elevating mechanism 17 of the chuck device 16, an elevator 27 that can move up and down on the upper turning base 14 is provided. The support column 28 standing on the upper turning base 14 is provided with a guide mechanism for guiding the elevator 27 to move up and down. For example, a linear motion guide or the like is used as the guide mechanism. A guide rail 29 is laid in the vertical direction on the side surface of each column 28, and a slider 30 slidable along the guide rail 20 is attached to the side surface of the elevator 27. For example, a drive cylinder 31 is provided as a drive source of the elevator 27, and the drive cylinder 31 and the elevator 27 are connected by a wire 32. The elevator 27 can be moved up and down by the expansion and contraction of the drive cylinder 31 via the wire 32 wound around the pulley or pulley 33.

  A stand 34 of the chuck device 16 is erected on the elevator 27, and a chucking head 35 is rotatably supported on the stand 34 (in the direction of arrow θ in FIG. 5). As shown in FIG. 3, the chucking head 35 is attached to the distal end portion of the rotation support shaft 37 supported in the horizontal direction via a plurality of bearings 36 so as to face the backstay 104 installed in the coke oven 100. It is attached. On the back side of the gantry 34, for example, a drive cylinder 38 is provided as a rotational drive source of the chucking head 35 (FIG. 4). At least about 90 °.

  In the chucking head 35, the chuck device 16 has a plurality of chucking claws 39 that grip a predetermined portion of the backstay 104. Here, the back stay 104 has an H-shaped steel or an equivalent shape, and includes four chucking claws 39 so that one side of the H-shape can be clamped at four locations (see FIG. 7). In this case, the vicinity of the central portion in the longitudinal direction of the backstay 104 to be replaced is held and supported with a good weight balance. Each chucking claw 39 is mounted on the chucking head 35 so as to be movable in three directions of the x direction, the y direction, and the z direction as shown in FIG. Etc. are attached.

  The backstay 104 is gripped by the chucking claw 39 of the chuck device 16 and the chucking head 35 is rotated around the rotation support shaft 37 so that the backstay 104 is horizontally supported as shown in FIG. 5 can be supported vertically. In this manner, the chucking head 35 can be moved up and down by appropriately driving the elevator 27 with the back stay 104 supported.

  Further, in the vicinity of the four rail travel wheels 18 provided at each corner of the base 11, there are traversing wheels 41 that can travel in a direction orthogonal to the guide vehicle rail 110 as shown in FIG. Each of the four transverse wheels 41 is rotatably supported around a rotation shaft that is horizontally supported along the furnace group length direction Y, and is rotationally driven by the power of the electric motor 42 mounted on the base 11. The traverse wheel 41 is supported by the base 11 in a retractable manner. Although not shown in detail, the frame member that supports the traversing wheel 41 is urged so as to reciprocate the rotating shaft of the traversing wheel 41 as indicated by an arrow A in FIG. .

  By storing the traversing wheel 41, the base 11 can travel on the guide vehicle rail 110 by the rail traveling wheel 18, and by deploying the traversing wheel 41, the rail traveling wheel 18 is detached from the guide vehicle rail 110. Can be made. In this disengaged state, the base 11, and thus the backstay replacement machine 10, can be driven along the direction perpendicular to the guide rail 110, that is, along the depth direction X, by rotationally driving the traverse wheel 41 with the power of the electric motor 42. it can. More specifically, in this example, the backstay replacement machine 10 reciprocates in an intermediate deck between the coke oven 100 furnace groups.

  Further, for example, two of the traversing wheels 41 on the front side in the traversing direction (which may be the rear side) are configured so as to be steerable, although the detailed illustration is omitted. Thus, when the backwheel replacement machine 10 reciprocates in the intermediate deck, the traveling direction can be controlled as desired because the traversing wheel 41 has a steering function.

  In the above case, the electric motor 19, the electric motor 25 and the electric motor 42 which are the driving sources of the movable member, or the driving cylinder 22, the driving cylinder 31, the driving cylinder 38, the driving cylinder 40 and the driving cylinder 43 (note that these driving cylinders Are preferably connected to a control panel 44 (see FIG. 5) including their drive control units. The operation timing or time of these drive sources is appropriately controlled by the control panel 44.

  Next, a typical operation example of the backstay replacement machine 10 configured as described above will be described. The backstay changer 10 travels on the guide rail 110 of the CS as shown in FIG. 8, for example, moves to the backstay 104 where the CS should be changed as shown in FIG. 9, and the chucking head 35 is shown in FIG. Thus, the vehicle is stopped facing the backstay 104. In this case, the backstay 104 to be replaced is cut to a predetermined length. When the guide mechanism 13 is driven, the chuck device 16 can be moved to a position where the backstay 104 can be gripped. That is, the intermediate bed 12 and the chuck device 16 are integrally moved horizontally along the depth direction X by the guide mechanism 13 to a position where the backstay 104 is gripped. Then, the chucking claw 39 is operated to grip the backstay 104, the backstay 104 is removed from the installation position by the guide mechanism 13, and taken into the backstay replacement machine. Thereafter, the elevator 27 is driven as necessary, the vertical position of the chucking head 35 is adjusted as shown in FIG. 9, and the backstay changer 10 guides the backstay 104 with the back stay 104 held vertically by the chuck device 16. It travels on the rail 110 and moves to the intermediate deck 116 as shown in FIG.

  Next, the elevator 27 is driven as shown in FIG. 11, the chucking head 35 is further raised, and the upper turning base 14 is turned 90 ° by the drive mechanism 15 as shown in FIG. Next, as shown in FIG. 13, the rotation support shaft 37 is rotated by the drive cylinder 38, and the chucking head 35 is rotated by 90 ° around the horizontal axis, whereby the backstay 104 is held horizontally. Thereafter, as shown in FIG. 14, the elevator 27 is driven, the chucking head 35 is lowered, and then the stored traverse wheel 41 is developed. Then, the rail traveling wheel 18 is detached from the guide vehicle rail 110, and the backstay replacement machine 10 travels toward the PS in the intermediate deck 116 by the traversing wheel 41. Since the backstay 104 is supported in a horizontal state and does not protrude above the backstay replacement machine 10, for example, even if there is any obstacle on the upper part of the intermediate deck 116, without interfering with the backstay 104, Traveling to PS is easy.

  When the backstay changer 10 travels through the intermediate deck 116 and moves to the PS, the elevator 27 is driven as shown in FIG. 15, and the chucking head 35 is raised. Further, as shown in FIG. 16, the rotation support shaft 37 is rotated in the opposite direction by the drive cylinder 38 and the chucking head 35 is rotated 90 ° around the horizontal axis, whereby the backstay 104 is held vertically. . Thereafter, the backstay 104 is received from the backstay replacement machine 10 using a heavy machine such as a crane, and the backstay 104 is removed or transported.

  On the other hand, when installing a new backstay in the CS, the backstay replacement machine 10 receives a new backstay using heavy equipment at the PS, and basically installs a new backstay in the reverse operation to the above. can do. In this case, the backstay changer 10 holding the new backstay travels on the intermediate deck 116 and moves to CS. Next, the vehicle travels on the guide rail 110, stops at a place where a new backstay is to be installed, and a new backstay is installed.

By using the self-propelled backstay replacement machine 10 according to the present invention, the replacement (removal and attachment) of the backstay 104 at the CS can be performed safely in a short time.
Further, the PS can travel (cross) the intermediate deck portion 116 of the furnace, travel to the guide rail 110 of the CS, and travel on the guide rail 110 when the guide rail 110 is reached. By running or stopping in a timely manner while measuring the timing in relation to the guide wheel 106, the replacement work of the backstay 104 can be performed very efficiently while preventing the movement of the guide wheel 106.

Further, the back stay 104 can be carried from PS to CS (or vice versa) by gripping the back stay 104 with the chuck device 16 and traveling on the intermediate deck portion 116. At this time, if the longitudinal direction of the backstay 104 is turned in the transverse direction by turning the upper turning base 14 and the chuck device 16, there is an advantage that the space is minimized.
Further, the vehicle travels on the guide rail 110 to the front of the predetermined backstay 104, and grips the backstay 104 by the chuck device 16 (or sets a new backstay at a predetermined position). At that time, the positioning with respect to the target backstay 104 can be performed easily and accurately by the vertical movement function of the chucking head 35, the slide function of the intermediate bed 12, and the like.

Thus, according to the self-propelled backstay replacement machine 10 of the present invention, the work time for replacement of the backstay 104 can be greatly shortened. In addition, the efficiency and safety of hot repair work while operating the furnace is greatly improved. And since it can evacuate immediately from the guide vehicle rail 110 when needed, the risk of affecting the operation of the coke oven 100 is greatly reduced.
When the chuck device 16 is replaced with a chuck device of an appropriate shape, such as a chuck device that can hold a furnace lid (on both sides of the carbonization chamber, that is, PS and CS, and traps coal, coke, and generated gas in the carbonization chamber). This device can also be used for CS furnace lid replacement. That is, because it is a long object like a backstay, such as a furnace lid and a furnace frame that holds it, even if it is difficult to carry in and out of CS, if the chuck device of this apparatus is made appropriate, It can be replaced safely and easily.

As mentioned above, although this invention was demonstrated with various embodiment, this invention is not limited only to these embodiment, A change etc. are possible within the scope of the present invention.
In the above-described embodiment, the example is described in which the drive mechanism of the elevator 27 is performed via the wire 32 wound around the pulley or pulley 33, but it is also possible to configure only by the drive cylinder 31 without using them. .

10 Backstay Replacement Machine, 11 Base, 12 Intermediate Bed, 14 Upper Turning Base, 15 Drive Mechanism, 16 Chuck Device, 17 Lifting Mechanism, 18 Rail Traveling Wheel, 19 Electric Motor, 20 Guide Rail, 21 Slider, 22 Drive Cylinder, 23 pinion gear, 24 wheel gear, 25 electric motor, 26 speed reducer, 27 elevator, 29 guide rail, 30 slider, 31 drive cylinder, 32 wire, 33 pulley or pulley, 34 mount, 35 chucking head, 36 bearing, 37 rotating support shaft, 38 drive cylinder, 39 chucking claw, 40 drive cylinder, 41 transverse wheel, 42 electric motor, 43 drive cylinder, 44 control panel, 100 coke oven, 101 heat storage chamber, 102 carbonization chamber, 103 combustion chamber, 104 Backstay, 106 Extruder, 106 Guide Car, 107 Platform, 108 Train, 109 Rail, 110 Guide Car Rail, 110A Third Rail, 111 Guide Car Power Supply Equipment, 112 Guide Car Dust Collection Duct, 113 Kiln Mouth Dust Collection Duct, 114 Coal Dust collection duct, 115 beams.

Claims (4)

A backstay replacement machine configured to run in a self-propelled manner to repair a backstay installed at a coke oven coke side,
A base capable of running on a rail laid along the length of the furnace group in the vicinity of the coke oven coke side;
An intermediate bed supported so as to be slidable in a direction orthogonal to the rails via a guide mechanism on the base;
An upper swing base supported on the intermediate bed so as to be rotatable around a vertical axis via a drive mechanism;
A coke oven comprising: a chuck device supported on the upper turning base via an elevating mechanism so as to be movable up and down, and gripping the back stay and supporting the back stay so as to be rotatable about a horizontal axis. Corkside self-propelled backstay replacement machine. The base includes a rail traveling wheel that travels on the rail, and a traverse wheel that is retractably supported by the base and can travel in a direction orthogonal to the rail.
The coke oven coke side self-propelled backstay replacement machine according to claim 1, wherein the coke oven is controlled to reciprocate in an intermediate deck between the coke ovens.   The coke oven coke side self-propelled backstay replacement machine according to claim 1 or 2, wherein the chuck device has a plurality of chucking claws for gripping a predetermined portion of the backstay.   The coke oven coke side self-propelled backstay replacement machine according to any one of claims 1 to 3, wherein the traverse wheel is configured to be steerable.

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