JP2017165852A - Furnace lid attaching method and attachment guide apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize attaching operation of a furnace lid without using an extrusion machine or a guide cart.SOLUTION: Attachment guide apparatuses 22 are respectively attached onto backstays 17 at both right and left sides of a furnace frame 5 to be an attachment target for a furnace lid 2. The left attachment guide apparatus 22 is arranged in a manner where a rail main body 29b of a rail member 25b is close to or made into contact with a left roller receiving member 8a of the furnace frame 5 in a state where vertical position and lateral position are adjusted. The right attachment guide apparatus 22 is arranged in a manner where a rail main body 29a of a rail member 25a is close to or made into contact with a right roller receiving member 8b of the furnace frame 5 in a state where vertical position and lateral position are adjusted. The furnace lid 2 is attached onto the furnace frame 5 in a state where right and left support rollers 10a, 10b are loaded on rail main bodies 29b, 29a of the attachment guide apparatuses 22 to be guided.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a furnace lid attachment method for attaching a furnace lid to a furnace frame of a coke oven, and an attachment guide device used in the method.

  The coke oven has a configuration in which a plurality of carbonization chambers and combustion chambers are arranged alternately in one direction. The direction in which the carbonization chamber and the combustion chamber are arranged is called the furnace group direction.

  Each carbonization chamber has a coal inlet on the upper end side, an extrusion port on one end side in the furnace length direction which is a horizontal direction orthogonal to the furnace group direction, and a discharge port on the other end side in the furnace length direction. It is configured.

  Each of the extrusion port and the discharge port has a structure in which a steel furnace frame is attached to an opening formed by a brick and a furnace lid is detachably attached to the furnace frame. By removing the furnace lid from the furnace frame, the extrusion port and the discharge port are opened, and by attaching the furnace lid to the furnace frame, the extrusion port and the discharge port are closed.

  Such an operation of attaching / detaching the furnace lid to / from the furnace frame is normally performed by a desorption device provided in an extruder or a guide car (coke furnace guide car) which is a coke oven moving machine (for example, Patent Document 1). reference).

JP 2001-181640 A

  By the way, in a coke oven in operation, it may be necessary to remove the furnace lid for maintenance or replacement due to failure, damage or aging of some of the carbonization chamber furnace lids. .

  In this case, if the desorption device provided in the extruder or the guide vehicle is used, the extruder or the guide vehicle cannot be used to continue the operation of another healthy furnace. For this reason, the coke production stoppage affects not only some of the coking chambers where maintenance and replacement of the furnace lid is required, but also the entire coke oven, so the impact of coke reduction is significant.

  Therefore, the present invention intends to provide a furnace cover mounting method for performing a furnace cover mounting operation without using an extruder or a guide wheel, and a mounting guide device used in the method.

  In order to solve the above-mentioned problem, the present invention provides an attachment guide device including a base portion and a rail member attached to a back stay of a coke oven, and is arranged on both sides of a furnace frame to be attached to a furnace lid. A base portion of the mounting guide device is detachably fixed to a backstay, and rail members of the mounting guide devices are arranged so as to approach or contact a roller receiving member provided in the furnace frame, A furnace lid attaching method for attaching the furnace lid to the furnace frame in a state where the support roller of the furnace lid is placed along the rail member of each of the attachment guide devices.

  The base of the mounting guide device is fixed to the backstay by removing the furnace fastening spring from the backstay and then attaching the base to the hole used to attach the furnace fastening spring to the backstay. It is done by fixing it so that it can be removed.

  The mounting guide device includes a pedestal that is attached to the base portion and attaches the rail member, and adjusts the mounting position of the base portion in the vertical direction with respect to the backstay and the mounting position of the rail member with respect to the pedestal. Thus, the positioning of each rail member with respect to the roller receiving member is performed.

  The attachment of the furnace lid is performed while continuing the operation of another carbonization chamber different from the carbonization chamber having the furnace frame to be a furnace lid attachment target in the coke oven.

  Mounting comprising: a base portion to be attached to the backstay; and a rail member which is supported by the base portion and which is disposed close to or in contact with the roller receiving member provided on the furnace frame to which the furnace lid is to be attached. A guide device is used.

  According to the furnace lid attachment method and the attachment guide device of the present invention, the furnace lid attachment operation can be performed without using an extruder or a guide wheel.

It is a figure which shows the outline | summary of a coke oven and a furnace lid. It is a figure which shows the coke oven and furnace cover of FIG. 1 from another direction. It is a figure which shows the attachment guide apparatus used with the furnace cover attachment method. It is a figure which shows a heel spring press apparatus. It is a figure which shows the procedure of embodiment of the furnace cover attachment method. It is a figure which shows FIG. 5 from another direction. It is a figure which shows the procedure following FIG. 5 of the furnace cover attachment method. It is a figure which shows another example of a heel spring press apparatus.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  FIG. 1: shows the outline | summary of the coke oven used as the application object of embodiment of the furnace cover attachment method, and its furnace cover, and is the figure which looked at the coke furnace from the outer side of the extrusion port. FIG. 2 is a view taken in the direction of arrows AA in FIG. FIG. 3 shows an example of a mounting guide device used in the furnace cover mounting method, FIG. 3 (a) is a schematic plan view, FIG. 3 (b) is a view taken in the direction of arrows BB in FIG. 3 (a), FIG.3 (c) is a CC direction arrow line view of FIG.3 (b). FIG. 4 shows an example of a saddle spring pressing device, FIG. 4 (a) is a partially cut schematic side view showing a state where it is mounted on a furnace lid, and FIG. FIG. 4C is a partially cutaway schematic side view showing the state, and is a DD direction view of FIG. 4A. FIG. 5 is a schematic diagram showing a state in which the attachment guide device is temporarily installed in the coke oven and the punch spring pressing device is attached to the furnace lid as a procedure of the embodiment of the furnace lid attachment method. 6 is a view taken in the direction of arrows EE in FIG. FIG. 7 is a schematic diagram showing a state in which the furnace cover is received by the attachment guide device by the support roller as a procedure following the FIG. 5 of the furnace lid attachment method of the present embodiment.

  First, the structure of the coke oven 1 and the furnace lid 2 to which the furnace cover mounting method of the present embodiment is applied will be outlined.

  The coke oven 1 is shown in FIGS. 1 and 2, and a plurality of carbonization chambers 3 and a plurality of combustion chambers (not shown) are alternately arranged in the furnace group direction indicated by an arrow x in FIG. . The coke oven 1 has a brick structure in which the outer wall, the partition wall between the carbonization chamber 3 and the combustion chamber, and the like are formed of bricks that are refractory materials.

  The carbonization chamber 3 is provided with an opening 4 that communicates with the outside and serves as an extrusion port and a discharge port on one end side and the other end side in the furnace length direction indicated by an arrow y in FIG. The opening 4 has a rectangular shape extending in the up-down direction, and the periphery is configured by brick (not shown). A steel furnace frame 5 is attached to the peripheral edge of the furnace outer end of the opening 4. The furnace lid 2 is detachably attached to the furnace frame 5.

  For convenience of explanation, regarding the furnace frame 5, when the furnace frame 5 attached to the opening 4 is viewed from the outside of the furnace, the side located on the left hand side is the side located on the left side and the right hand side of the furnace frame 5. Is called the right side of the furnace frame 5. Regarding the furnace lid 2, directions corresponding to the left side and the right side of the furnace frame 5 in the furnace lid 2 attached to the furnace frame 5 are referred to as the left side and the right side of the furnace lid 2.

  The furnace frame 5 is a rectangular frame extending in the vertical direction along the opening 4. On the surface of the furnace frame 5 exposed to the outside of the opening 4, saddle receiving objects 6 a, 6 b and saddle receiving objects 6 c, 6 d protrude from the upper part and the lower part. Each of the upper and lower saddle receiving objects 6a and 6c arranged on the left side of the furnace frame 5 is a saddle type whose upper side is open. On the other hand, each of the upper and lower saddle pieces 6b and 6d arranged on the right side of the furnace frame 5 is a saddle type whose lower part is opened. As a result, the pair of saddle piece 6a and saddle piece 6b arranged on the left and right of the furnace frame 5 and the pair of saddle piece 6c and saddle piece 6d are close to the upper and lower sides of the furnace lid 2 described later. The both ends of the swivel (rotary) rod 7 provided in the can be respectively hung.

  A pair of left and right roller receiving members 8 a and 8 b are projected from an upper position on the surface of the furnace frame 5. Each roller receiving member 8a, 8b is provided with a roller mounting surface 9 (see FIG. 2) along the furnace length direction from the protruding end side to the surface of the furnace frame 5 or a position near the surface. Each of the roller receiving members 8a and 8b mounts a pair of support rollers 10a and 10b provided on the left and right sides of the upper side of the furnace lid 2 when the furnace lid 2 is attached to the furnace frame 5. Place on surface 9 and receive. As a result, the furnace lid 2 attached to the furnace frame 5 is supported by the respective roller receiving members 8a and 8b from below by the respective support rollers 10a and 10b. Deviation from position is prevented.

  The furnace lid 2 includes a steel furnace lid body 11, a furnace lid refractory (furnace lining lining) 12 (see FIG. 2) attached to the back side of the furnace lid body 11, and the surface side of the furnace lid body 11. The revolving-type ridge 7 attached to the upper portion and the lower portion, and support rollers 10a and 10b provided on the left and right sides of the furnace lid body 11 are provided.

  On the upper end side of the furnace lid main body 11, a suspension piece 11 a for suspending and transporting the furnace lid 2 is provided. The suspension piece 11a is disposed so that the furnace lid 2 can be suspended in a substantially vertical posture.

  The furnace lid refractory 12 is inserted up to a position located inside the furnace than the furnace frame 5 of the opening 4 when the furnace lid 2 is attached to the furnace frame 5. Since the outer surfaces of the upper, lower, left and right sides and the bricks (not shown) around the opening 4 are arranged close to each other, heat acting on the furnace lid body 11 and the furnace frame 5 from the inside of the carbonization chamber 3 is suppressed. It has been.

  The rod 7 is pivotably attached to the protruding end side of the shaft 13 protruding from the surface of the furnace lid body 11. Around the proximal end portion of the shaft 13, a hook spring 14 that urges the hook 7 in a direction away from the furnace lid body 11 is provided. Further, the rod 7 is provided with a swing type rod pushing pedal 15 for contracting the rod spring 14. The eaves pushing pedal 15 has a bifurcated shape (clevis shape) so as to straddle the shaft 13, and the distal end side of the bifurcated shape swings. Thereby, by pressing the tip end side of the eaves pushing pedal 15 from the outside in the direction approaching the furnace cover body 11, the eaves spring 14 is contracted and the eaves 7 can be turned.

  On the surface side of the furnace lid main body 11, there is a place corresponding to the space between the bifurcated front end side of the saddle pushing pedal 15 and a place closer to the surface of the furnace cover main body 11 than the front end side of the firewood pushing pedal 15. The lateral pins 16 are arranged, and both end sides thereof are attached to the furnace lid body 11. This fixed lateral pin 16 is used for entrusting the load of the furnace lid 2 to the extruder or the guide car when performing an ordinary operation of attaching or removing the furnace lid 2 using an extruder or a guide car (not shown). It is equipped in the furnace lid 2.

  Further, as shown in FIGS. 1 and 2, the coke oven 1 is provided with back stays 17 extending vertically on both sides in the furnace length direction at positions between adjacent carbonizing chambers 3. Each backstay 17 is formed of, for example, H-shaped steel, and has an attitude in which the outer surface of one flange 18 faces the outer wall surface of the coke oven 1.

  A space between one flange 18 and the other flange 19 of each backstay 17 is provided with a furnace clamping spring 20 in a plurality of vertical arrangements.

  Although not shown, a flash plate is disposed between the outer surface of one flange 18 and the outer wall surface of the coke oven 1, and the restoring force from the elastically deformed state of the furnace tightening spring 20 is applied to the flash plate on the coke oven 1. A rod member that transmits the urging force in a direction toward the outer wall surface is connected. Thereby, in the coke oven 1, the flash plate is pressed against the outer wall surface from the outside using the elasticity of the furnace fastening spring 20, and the brick structure of the coke oven 1 is fastened from the outside in the furnace length direction to maintain the shape. Yes.

  The other flange 19 of each backstay 17 is provided with a hole 21 for inserting and arranging a screw shaft (not shown) used when adjusting the deformation amount of the furnace fastening spring 20 or when attaching or detaching the furnace fastening spring 20. Yes.

  Next, the configuration of the mounting guide device 22 will be described based on FIGS. 3 (a), 3 (b), and 3 (c). For convenience of explaining the configuration of the mounting guide device 22, the direction following the left-right direction of the furnace frame 5 when the mounting guide device 22 is temporarily installed on the backstay 17 of the coke oven 1 as described later is set. It is called the left-right direction. Furthermore, the side disposed close to the backstay 17 is referred to as the front side of the mounting guide device 22, and the opposite side is referred to as the rear side of the mounting guide device 22.

  As shown in FIGS. 3A, 3 </ b> B, and 3 </ b> C, the attachment guide device 22 used in the furnace lid attachment method of the present embodiment includes a base portion 23 that is detachably fixed to the backstay 17, and a base portion 23. The structure includes a supported gantry 24 and rail members 25a and 25b attached to the gantry 24 in an arrangement extending in the front-rear direction.

  In the present embodiment, the base portion 23 is formed of, for example, an H-shaped steel extending in the vertical direction, and the outer surface of one flange 23 a positioned on the front side is aligned with the outer surface of the other flange 19 of the backstay 17. It is assumed that they are arranged.

  The length dimension of the base portion 23 in the vertical direction is such that at least the position of the upper and lower two-stage holes 21 arranged at a position lower than the roller receiving members 8a and 8b of the furnace frame 5 in the other flange 19 of the backstay 17. It is set to extend up and down beyond

  One flange 23a is provided with a long hole 26 extending in the up-down direction in an arrangement of at least two stages in the up-down direction corresponding to the hole 21 of the backstay 17. As a result, the base portion 23 can be removably fixed to the other flange 19 of the backstay 17 using the bolts 27 that pass through the long holes 26 and 21 and the nuts 28 that are screwed into the bolts 27. it can. At this time, the base portion 23 can adjust the mounting position in the vertical direction with respect to the backstay 17 by the dimension in which each long hole 26 extends in the vertical direction. In addition, when fixing the base part 23 to the other flange 19 of the backstay 17 using the bolt 27 and the nut 28, it is needless to say that a backing plate or a washer provided with a bolt insertion hole may be used as appropriate. It is.

  As a result, the attachment guide device 22 can be temporarily installed on the back stay 17. At this time, the rails of rail members 25 a and 25 b, which will be described later, are adjusted along with the vertical adjustment of the attachment position of the base portion 23 to the back stay 17. The height positions of the upper surfaces of the main bodies 29 a and 29 b can be matched with the height positions of the roller mounting surfaces 9 of the roller receiving members 8 a and 8 b of the furnace frame 5.

  The base portion 23 is provided with a rib-shaped reinforcing member 30 that connects one flange 23a, the other flange 23b, and the web 23c at a vertical position that does not interfere with the long hole 26.

  The gantry 24 is configured to include flat portions extending in the front-rear direction at least on both ends in the left-right direction. In the present embodiment, the gantry 24 is a rectangular plate-like member whose upper surface is flat in the front-rear and left-right directions.

  The gantry 24 is attached to the upper end side of the base portion 23 at a lower surface side of a portion that is a middle portion in the left-right direction. At this time, the front end edge of the gantry 24 is attached to the upper end side of one flange 23 a of the base portion 23.

  The longitudinal dimension of the gantry 24 is set according to the longitudinal length of the rail members 25a and 25b attached to the flat portions on the left and right ends of the gantry 24. In the present embodiment, the longitudinal dimension of the gantry 24 is set so as to protrude rearward from the other flange 23 b of the base portion 23.

  The horizontal dimension of the gantry 24 is set to be larger than the horizontal dimension of the backstay 17. Further, as shown in FIG. 3A, when the base portion 23 is fixed to the back stay 17, the left end portion of the gantry 24 is located on the right side of the furnace frame 5 disposed on the left side of the back stay 17. It is disposed at a position corresponding to the roller receiving member 8b, and the right end portion of the gantry 24 is set to be disposed at a position corresponding to the left roller receiving member 8a of the furnace frame 5 disposed on the right side of the back stay 17. Has been.

  The gantry 24 is a rib shape that connects between the flanges 23 a and 23 b of the base portion 23 on the lower surface side of the portion that projects in the left-right direction from the base portion 23 and the portion that projects rearward from the base portion 23. The reinforcing member 31 is attached.

  On the left end side and the right end side of the gantry 24, elongated holes 32a and elongated holes 32b extending in the left-right direction are respectively provided at a plurality of positions in the front-rear direction (three positions in the figure).

  The left rail member 25a attached to the left end side of the gantry 24 includes a flat base plate 33 extending in the front-rear direction, a rail body 29a extending in the front-rear direction attached to the upper left side of the base plate 33, and the front-rear direction. The rib member 34 connecting the upper surface of the base plate 33 and the right side surface of the rail body 29a is provided at a plurality of locations.

  A stopper 35 protruding upward is provided on the rear end side of the rail body 29a. As will be described later, the stopper 35 prevents the support roller 10b (see FIGS. 1 and 3C) of the furnace lid 2 placed on the upper side of the rail main body 29a from dropping out to the rear of the rail main body 29a. belongs to.

  The base plate 33 is provided with long holes 36 extending in the front-rear direction at a plurality of positions in the front-rear direction corresponding to the positions in the front-rear direction of the long holes 32 a of the gantry 24.

  Thereby, the rail member 25a can be detachably fixed to the left end side of the gantry 24 by using the bolt 37 passed through the long hole 36 and the long hole 32a and the nut 38 screwed to the bolt 37. In FIG. 3A, for convenience of illustration of the long hole 36 and the long hole 32a, the description of the bolt 37 used for fixing the rail member 25a is omitted. Thus, when fixing the rail member 25a to the mount 24, the rail member 25a can adjust the attachment position of the left-right direction with respect to the mount 24 by the dimension which each long hole 32a extends in the left-right direction. Moreover, the rail member 25a can adjust the attachment position of the front-back direction with respect to the mount frame 24 by the dimension which each long hole 36 extends in the front-back direction.

  Thereby, in the attachment guide apparatus 22, the left-right direction position of the rail main body 29a is matched with the position of the roller receiving member 8b on the right side of the furnace frame 5 by adjusting the attachment position of the rail member 25a with respect to the mount 24 in the left-right direction. be able to.

  Further, in the attachment guide device 22, the front end portion of the rail body 29a is disposed close to or in contact with the protruding end portion of the roller receiving member 8b by adjusting the attachment position of the rail member 25a with respect to the gantry 24 in the front-rear direction. can do.

  The right rail member 25b attached to the right end side of the gantry 24 includes a flat base plate 39 extending in the front-rear direction, a rail body 29b extending in the front-rear direction attached to the upper right side of the base plate 39, and the front-rear direction. The rib member 40 that connects the upper surface of the base plate 39 and the left side surface of the rail body 29b is provided at a plurality of locations.

  At the rear end side of the rail main body 29b, the support roller 10a (see FIG. 1) of the furnace lid 2 placed on the upper side of the rail main body 29b is dropped to the rear of the rail main body 29b in the same manner as the rail main body 29a. A stopper 35 is provided to prevent this.

  The base plate 39 is provided with long holes 41 extending in the front-rear direction at a plurality of positions in the front-rear direction corresponding to the arrangement in the front-rear direction of the long holes 32 b of the gantry 24.

  Thereby, the rail member 25b can be detachably fixed to the right end side of the gantry 24 by using the bolt 37 passed through the long hole 41 and the long hole 32b and the nut 38 screwed to the bolt 37. In FIG. 3A, for convenience of illustrating the long hole 41 and the long hole 32b, the description of the bolt 37 used for fixing the rail member 25b is also omitted. Thus, when fixing the rail member 25b to the mount 24, the rail member 25b can adjust the attachment position of the left-right direction with respect to the mount 24 by the dimension which each long hole 32b extends in the left-right direction. Moreover, the rail member 25b can adjust the attachment position of the front-back direction with respect to the mount frame 24 by the dimension which each long hole 41 extends in the front-back direction.

  Thereby, in the attachment guide apparatus 22, the left-right direction position of the rail main body 29b is matched with the position of the roller receiving member 8a on the left side of the furnace frame 5 by adjusting the attachment position of the rail member 25b with respect to the mount 24 in the left-right direction. be able to.

  Further, in the mounting guide device 22, the front end portion of the rail body 29b is disposed close to or in contact with the protruding end portion of the roller receiving member 8a by adjusting the mounting position of the rail member 25b with respect to the gantry 24 in the front-rear direction. can do.

  In addition, when fixing each rail member 25a, 25b to the mount frame 24 using the volt | bolt 37 and the nut 38, of course, you may use suitably the contact plate, washer, etc. with which the bolt insertion hole was pierced.

  A hanging piece 42 is provided at a position exposed on the upper end side of the mounting guide device 22 and above, for example, near the center of the upper surface of the gantry 24. The mounting guide device 22 is used to adjust whether or not the left and right rail members 25a and 25b are attached to the gantry 24 and the mounting positions of the rail members 25a and 25b attached to the gantry 24 in the front-rear direction and the left-right direction. As a result, the position of the center of gravity of the mounting guide device 22 is slightly displaced from front to back and from side to side. Therefore, the suspension piece 42 is provided above the base portion 23 and above the approximate center of gravity of the mounting guide device 22.

  Thereby, the attachment guide apparatus 22 becomes the attitude | position which the base part 23 becomes substantially upright, when suspending and conveying the suspension piece 42 with suspension tools, such as a crane which is not shown in figure. For this reason, the mounting guide device 22 can be easily placed along the backstay 17 in a state where the mounting guide device 22 is suspended via the suspension piece 42. Can improve the workability of work

  Next, the configuration of the hook spring pressing device 43 will be described with reference to FIGS. 4 (a), 4 (b), and 4 (c). In addition, for convenience of explaining the configuration of the hail spring pressing device 43, the hanger spring pressing device 43 corresponds to the vertical and horizontal directions of the furnace lid 2 in a state where the hanger spring pressing device 43 is used by being mounted on the hanger 7 of the furnace lid 2. The directions are referred to as up and down and left and right directions of the spring spring pressing device 43. Furthermore, the side disposed close to the furnace lid is referred to as the front side of the punch spring pressing device 43, and the opposite side is referred to as the rear side of the punch spring pressing device 43.

  The heel spring pressing device 43 penetrates in the front-rear direction through a pedal pressing member 44 extending in the left-right direction so as to be able to contact both distal ends of the heel pressing pedal 15, and an intermediate portion in the left-right direction of the pedal pressing member 44. A center hole jack 47 to which the rear end side of the shaft 46 attached to the rear side of the pedal pushing member 44 is connected, and the shaft 46 extending in the front-rear direction inserted through the insertion hole 45 is provided. And a hook member 48 attached to the front end side of the shaft 46.

  Further, a portable hydraulic pump 49 is connected to the center hole jack 47. The hydraulic pump 49 is supported by a substantially gate-shaped frame 50 attached to the rear side of the pedal pushing member 44. As long as the hydraulic pump 49 can supply hydraulic pressure to the center hole jack 47 alone, the driving method such as manual operation or electric drive may be any method.

  When the hook spring pressing device 43 having the above configuration is used, as shown in FIG. 4A, the hydraulic pump 49 is deactivated and the shaft 46 is pulled out from the pedal pushing member 44 to the hook member 48 side. In this state, the hook member 48 is hooked on the lateral pin 16 attached to the furnace lid body 11, and the pedal pressing member 44 is disposed so as to contact the distal end side of the eaves pushing pedal 15.

  Next, the hydraulic pump 49 is operated to supply hydraulic pressure to the center hole jack 47, and the shaft 46 is pushed out by the center hole jack 47 as shown in FIG. At this time, since the hook member 48 attached to the front end side of the shaft 46 is hung on the lateral pin 16, the position of the shaft 46 does not change, so the pedal pushing member 44 moves relatively forward. Therefore, as the pedal pushing member 44 moves forward, the tip end side of the saddle pushing pedal 15 is pushed in a direction approaching the furnace cover body 11, so that the saddle spring 14 contracts and the saddle 7 can turn. It becomes a state.

  A furnace lid attachment method for attaching the furnace lid 2 to the furnace frame 5 using the attachment guide device 22 and the hook spring pressing device 43 having the above-described configuration will be described.

  When the furnace lid mounting method is carried out, the holes 21 used for temporary installation of the mounting guide device 22 are preliminarily arranged on the back stays 17 arranged on both the left and right sides of the furnace frame 5 to which the furnace lid 2 is attached. The furnace-clamping spring 20 (see FIG. 1) arranged at the position is removed.

  In this state, as shown in FIGS. 5 and 6, the mounting guide device 22 is temporarily installed in the back stays 17 on both the left and right sides of the furnace frame 5 to be worked using the holes 21.

  At this time, in the mounting guide device 22 temporarily installed on the left side of the furnace frame 5 to be worked, the vertical position and the horizontal direction position of the rail body 29b of the right rail member 25b are set to the positions of the roller receiving member 8a on the left side of the furnace frame 5. Match the position of the roller mounting surface 9. Further, the front end side of the rail body 29b is disposed so as to approach or contact the protruding end portion of the roller receiving member 8a.

  Further, in the mounting guide device 22 temporarily installed on the right side of the furnace frame 5 to be worked, the vertical position and the horizontal direction position of the rail body 29a of the left rail member 25a are set as the rollers of the roller receiving member 8b on the right side of the furnace frame 5. Align with the position of the mounting surface 9. Furthermore, the front end side of the rail main body 29a is disposed so as to approach or contact the protruding end portion of the roller receiving member 8b.

  At this time, in the attachment guide device 22 arranged on the left side of the furnace frame 5 to be worked, the left rail member 25a may or may not be attached to the gantry 24. Moreover, in the attachment guide apparatus 22 arrange | positioned on the right side of the furnace frame 5 of work object, the right rail member 25b may be attached to the mount frame 24, and does not need to be attached.

  In addition, after completion | finish of the attachment operation | work of the furnace lid 2 to the furnace frame 5 of the present work object, it is scheduled that the attachment operation | work of the furnace lid 2 to the other furnace frame 5 adjacent to the left side or the right side will be performed continuously. In the case of the installation guide device 22 arranged between the current furnace frame 5 to be worked and another furnace frame 5 to be worked next, the rail member 25a or rail on the other furnace frame 5 side is used. The member 25b is also preferably attached to the gantry 24. In this way, it is possible to reduce the time and labor required for starting the operation of attaching the furnace lid 2 to another furnace frame 5.

  On the other hand, the furnace lid 2 mounts the individual spring spring pressing devices 43 on the upper and lower rods 7 so that the rods 7 can turn. Furthermore, each rod 7 is inclined in the left-right direction so that it does not interfere with the rod receiving objects 6a, 6b, 6c, 6d of the furnace frame 5.

  Next, the furnace lid 2 is hung with a lifting tool such as a crane (not shown) and conveyed to a position outside the furnace frame 5 to be worked. As shown in FIG. 7, the left and right support rollers 10a, 10b The rail body 29b of the mounting guide device 22 disposed on the left side of the furnace frame 5 and the rail body 29a (see FIG. 6) of the mounting guide device 22 disposed on the right side are disposed. At this time, most of the weight of the furnace lid 2 is supported by a hanging tool such as a crane so that an excessive load is not applied to each mounting guide device 22 from the left and right support rollers 10a and 10b. In FIG. 7, for convenience of illustration, the mounting guide device 22 is attached to the backstay 17 on the left side (the front side in FIG. 7 in FIG. 7) of the furnace frame 5 to be worked in FIG. 6. The figure is shown.

  Next, the furnace cover 2 moves to the furnace frame 5 side while keeping the support rollers 10a and 10b along the rail bodies 29b and 29a in a state where the furnace cover 2 is suspended by a crane or the like. Thereafter, in the furnace lid 2, as shown by a two-dot chain line in FIG. 7, the support rollers 10a and 10b are received by the roller receiving members 8a and 8b of the furnace frame 5 from the front end sides of the rail bodies 29b and 29a. Move to the position where

  Thereby, the furnace lid 2 is in a state in which the furnace lid body 11 is disposed along the surface of the furnace frame 5 and the furnace lid refractory 12 is inserted through the furnace frame 5 to the opening 4.

  Therefore, in this state, each rod 7 of the furnace lid 2 is swung so as to be in a horizontal posture, and the tip side of each rod 7 is paired with the rod receiving material 6a and the rod receiving material 6b of the furnace frame 5, and It is hung on the pair by the scissors received object 6c and the scissor received object 6d.

  Thereafter, the hook spring pressing device 43 is removed from each rod 7 and removed, and the furnace cover 2 is removed from a hanging tool such as a crane to complete the operation of attaching the furnace cover 2 to the furnace frame 5.

  Thereafter, the attachment guide device 22 removes and removes from the backstay 17 those that are not scheduled to be used continuously. Furthermore, the furnace tightening spring 20 (see FIG. 1) at the position of the hole 21 of the backstay 17 used for temporary installation of the mounting guide device 22 is mounted to recover the initial state.

  Thus, according to the furnace lid attachment method of this embodiment, the operation | work which attaches the furnace lid 2 to the furnace frame 5 can be implemented, without using an extruder or a guide vehicle.

  For this reason, since an extruder and a guide vehicle can be used in order to operate other carbonization chambers 3, and it becomes possible to continue operation in other carbonization chambers 3, coke production reduction in coke oven 1 is carried out. It becomes possible to suppress the influence of.

  Further, when the furnace lid 2 is attached to the furnace frame 5, contact between the furnace lid refractory 12 inserted into the opening 4 and bricks (not shown) around the opening 4 is prevented, thereby preventing damage to both. This is very important.

  In this regard, in the furnace cover mounting method of the present embodiment, the positions of the rail bodies 29b and 29a of the mounting guide device 22 are aligned with the roller receiving members 8a and 8b of the furnace frame 5, and the support roller 10a is aligned with the rail bodies 29b and 29a. 10b to guide the movement of the furnace lid 2. Therefore, the vertical position and the horizontal position of the furnace lid 2 immediately before being attached to the furnace frame 5 are the furnace cover 2 in a state where the support rollers 10a and 10b are received by the roller receiving members 8a and 8b and attached to the furnace frame 5. Can be adjusted to the position of Therefore, in the furnace lid mounting method of the present embodiment, the contact between the furnace refractory 12 inserted into the opening 4 and the brick (not shown) around the opening 4 is prevented, thereby preventing damage to both. Can do.

  Further, in the coke oven 1 in operation, the furnace frame 5 may be distorted because it receives heat from the carbonization chamber 3, and for this reason, the roller receiving members 8 a and 8 b are placed at the positions of the individual furnace frames 5. There is a risk of deviation.

  With respect to this point, the mounting guide device 22 used in the present embodiment is configured such that the rail body 29a, 29b has a vertical position, a horizontal position, and a front / rear position in accordance with the roller receiver of the furnace frame 5 to which the furnace lid 2 is to be mounted. It can be adjusted according to the actual position of the members 8a, 8b. Therefore, even if the position of the roller receiving members 8 a and 8 b is shifted for each furnace frame 5, the operation of attaching the furnace lid 2 to each furnace frame 5 can be performed.

  In the above-described embodiment, the furnace cover 2 to which the furnace cover mounting method is applied has been described as including the rod 7 of the type that contracts the rod spring 14 by operating the rod pushing pedal 15. As shown, the rod 7 of the furnace lid 2 may be of a type in which the rod spring 14 is contracted by pushing the rod 7 itself toward the furnace lid body 11. In this case, instead of the hook spring pressing device 43 shown in FIGS. 4A, 4B, and 4C, the hook spring pressing device 51 having the configuration shown in FIG. 8 may be used. In FIG. 8, the same components as those shown in FIGS. 4 (a), (b), (c) and FIG.

  The hook spring pressing device 51 shown in FIG. 8 includes a support member 52 extending in the vertical direction with a length longer than the hook 7 near the upper portion of the furnace lid 2 to the hook 7 near the lower portion, and the upper end side of the support member 52. And hook members 53a and 53b attached to the lower end side so as to protrude sideways, and jacks 54a attached to the upper end side and lower end side of the support member 52 in a posture along the protruding direction of the hook members 53a and 53b. , 54b.

  The hook members 53a and 53b are attached to the support member 52 in positions and postures of the hook members 53a and 53b with respect to the lateral pins 16 provided in the vicinity of the flanges 7 near the top and bottom of the furnace lid 2, respectively. 53b can be hooked at the same time. 8 shows a configuration in which the hook members 53a and 53b are fixed to the support member 52. However, the hook members 53a and 53b are swingably attached to predetermined portions of the support member 52. It is good. According to this structure, each hook member 53a, 53b can adjust individually the position when hooking on the corresponding horizontal pin 16, respectively.

  The jacks 54a and 54b are attached to the support member 52 when the hook members 53a and 53b are hooked on the lateral pins 16 as described above. The protruding end portion (tip portion) is determined so as to be opposed to the protruding end portion of each rod 7 protruding from the surface of the furnace lid body 11.

  Portable hydraulic pumps 55a and 55b are connected to the jacks 54a and 54b, respectively. Each hydraulic pump 55a, 55b is supported by a support member 52. The hydraulic pumps 55a and 55b may be driven by any method such as manual or electric drive as long as the hydraulic pressure can be supplied to the corresponding jacks 54a and 54b independently.

  Furthermore, the support member 52 is provided with suspension pieces 56a, 56b, 56c, and 56d on the upper end side and the lower end side, for example, in an arrangement as shown in FIG. As a result, the hook spring pressing device 51 selects one or more of the suspension pieces 56a, 56b, 56c, and 56d as appropriate and suspends the support member 52 in the vertical direction by suspending it with a crane or the like (not shown). In addition to the posture placed upright, various postures such as a posture in which the support member 52 is laid down can be taken. Therefore, the hook spring pressing device 51 can be applied to the furnace lid 2 having various postures.

  When using the hook spring pressing device 51 having the above-described configuration, as shown in FIG. 8, the hydraulic pumps 55a and 55b are deactivated and the jacks 54a and 54b are contracted. 53b is hooked on the corresponding lateral pins 16 in the furnace lid 2 respectively. Thereby, each jack 54a, 54b is arrange | positioned facing the protrusion edge part of each collar 7. As shown in FIG.

  Next, the hydraulic pumps 55a and 55b are operated to supply hydraulic pressure to the jacks 54a and 54b, and the jacks 54a and 54b are extended. At this time, since the hook members 53 a and 53 b are hooked on the lateral pins 16, the support member 52 is restrained from being displaced in a direction away from the furnace lid body 11. For this reason, since each eaves 7 is pushed by the extending jacks 54a and 54b in the direction approaching the furnace lid body 11, the eaves spring 14 contracts, and the eaves 7 can turn.

  The present invention is not limited only to the above-described embodiment, and the furnace cover mounting method of the present invention is not only used when replacing the furnace cover 2 in the existing coke oven 1 but also in the newly installed coke oven 1. Of course, it may be applied when the furnace lid 2 is first attached to the furnace frame 5 provided in the opening 4 of the chamber 3.

  When attaching the furnace lid 2 to the furnace frame 5, it is important to prevent damage to bricks (not shown) around the opening 4, but after removing the furnace lid 2, Even if the brick is damaged, it can be easily repaired. Therefore, the operation of removing the existing furnace lid 2 from the furnace frame 5 in the coke oven 1 may be performed in the reverse order of the method of attaching the furnace lid of the above embodiment, or any other method You may make it implement in.

  In addition, the dimensions and dimension ratios of the furnace lid 2 and the mounting guide device 22 in the front, rear, upper, lower, left and right directions are for convenience of illustration, and do not reflect actual dimensions and dimension ratios of the apparatus.

  From the viewpoint of enabling the mounting guide device 22 to be mounted on the backstay 17 at a position as low as possible, the mounting guide device 22 is preferably provided with a gantry 24 on the upper end side of the base portion 23. However, the base 24 may be configured such that the gantry 24 is attached to an intermediate position in the vertical direction or the lower end side. In this case, the base portion 23 may be fixed to the backstay 17 using the holes 21 arranged above the roller receiving members 8a and 8b of the furnace frame 5 in the backstay 17. .

  As described above, when the gantry 24 is provided at the midway position in the vertical direction or at the lower end side of the base portion 23, the gantry 24 is provided with a flat portion extending in the front-rear direction for attaching the rail members 25a and 25b to the left and right ends. For example, other structures in the left-right direction intermediate portion and the lower surface side may adopt arbitrary structures.

  As the fixing means for removably fixing the base portion 23 of the mounting guide device 22 to the backstay 17, the configuration using the bolts 27 and the nuts 28 is exemplified. However, the base portion 23 is removed without being displaced from the backstay 17. Any fixing means other than the bolt 27 and the nut 28 may be adopted as long as it can be fixed as possible. Furthermore, the base portion 23 may be fixed to the backstay 17 by welding or adhesion if it can be removed later. In this case, the shape, structure, and dimensions of the base portion 23 may be changed as appropriate within a range that does not interfere with the movement of the furnace lid 2 attached to the furnace frame 5 in accordance with the fixing means employed.

  As a configuration for adjusting the left-right direction position and the front-rear direction position of each rail member 25a, 25b attached to the gantry 24, the elongated holes 32a, 32b provided on the left and right ends of the gantry 24 are configured to extend in the front-rear direction. The long holes 36 and 41 provided in the base plates 33 and 39 of the rail members 25a and 25b may be shaped to extend in the left-right direction.

  The gantry 24 may be provided with means for changing the height positions of the rail members 25a and 25b attached to the gantry 24. For example, a shim plate may be interposed between the gantry 24 and the rail members 25a and 25b. According to this configuration, the vertical position of the rail bodies 29a and 29b of the left and right rail members 25a and 25b is set to the vertical position of the back stay 17 to which the mounting guide device 22 is attached, while the vertical position of the base portion 23 is fixed. It can arrange | position according to the roller receiving members 8b and 8a of the furnace frame 5 of right and left both sides. Therefore, according to this configuration, it is possible to omit vertical position adjustment means when attaching the base portion 23 to the backstay 17.

  The mounting guide device 22 may be provided with a support column on the rear end side of the rail members 25a and 25b for transmitting and supporting the load acting on the rail members 25a and 25b from the furnace lid 2 to the foundation.

  If the furnace cover attachment method of the said embodiment can arrange | position suspensions, such as a crane, in the upper position of the outer side of the furnace frame 5, the pusher side (PS) by which the extrusion port of each carbonization chamber 3 is arrange | positioned The present invention may also be applied to the case where the furnace lid 2 is attached to any furnace frame 5 of the coke side (CS) where the discharge port is disposed.

  When the operation of attaching the furnace lid 2 to the furnace frame 5 by the furnace lid attachment method of the above embodiment is performed, the operation of another carbonization chamber 3 may not be performed.

  Of course, various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Coke oven 2 Furnace 3 Coking chamber 5 Furnace frame 8a, 8b Roller receiving member 10a, 10b Support roller 17 Backstay 22 Mounting guide device 23 Base part 24 Mount 25a, 25b Rail member

Claims (5)

Prepare a mounting guide device with a base and rail members to be attached to the coke oven backstay,
Removably fixing the base portion of the mounting guide device to the back stays arranged on both sides of the furnace frame to be attached to the furnace lid,
The rail member of each of the mounting guide devices is disposed so as to approach or contact the roller receiving member provided in the furnace frame,
Next, the furnace cover is attached to the furnace frame in a state where the support roller of the furnace cover is placed along the rail member of each of the attachment guide devices. Fixing the base portion of the mounting guide device to the backstay is as follows:
After removing the furnace clamping spring from the backstay,
The furnace lid attachment method according to claim 1, wherein the method is performed by removably fixing the base portion in a hole used for attaching the furnace fastening spring to the backstay. The attachment guide device includes a mount attached to the base portion and attaching the rail member,
The position adjustment of each said rail member with respect to the said roller receiving member is performed by adjustment of the attachment position of the up-down direction with respect to the said backstay of the said base part, and adjustment of the attachment position of the said rail member with respect to the said mount frame. How to install the furnace lid. The attachment of the furnace lid is performed while continuing operation of another carbonization chamber different from the carbonization chamber having the furnace frame to be a furnace lid attachment target in the coke oven. A method for attaching the furnace lid as described in 1. A base part to be attached to the back stay;
A mounting guide device comprising: a rail member that is supported by the base portion and that is disposed in proximity to or in contact with the roller receiving member provided in a furnace frame to which a furnace lid is to be attached.

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