JP6183800B2 - Installation method of coke oven and coal-carrying rail gauge - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a charcoal rail cradle that is installed on a ceiling portion of a coke oven and supports a charcoal rail, and a method for installing the same.

  On the ceiling of the coke oven, there is a rail for a coal car that travels in a horizontal direction orthogonal to the furnace length direction (a charcoal car rail) and a coal car rail cradle that supports the car rail (hereinafter simply referred to as a “rail cradle”). Also called).

  FIG. 8 shows a conventional rail cradle. As shown in FIG. 8, a rail (coal vehicle rail) 13 for running a charcoal vehicle (not shown) is laid on the ceiling portion 2 of the coke oven 1, and the rail 13 is a rail receiving beam (coal vehicle). (Rail support beam) 12 and further supported by a rail support (charcoal vehicle rail support) 11 embedded in the ceiling 2.

  In FIG. 9, the effect | action of the charcoal vehicle load W to the conventional rail stand 11 is shown. The ceiling portion 2 below the rail pedestal 11 is damaged by the action of the loaded vehicle load W due to repeated running of the loaded vehicle with a total weight of 200 to 300 tons, that is, the bricks and joints of the ceiling portion 2 are damaged and deformed, The rail cradle 11 sinks, and the furnace wall 4 under the ceiling 2 is overhanged. And if it progresses, it will eventually lead to collapse of the ceiling part 2 and collapse of the furnace wall part 4.

  In such cases, repairs have been made by transposing damaged bricks on the ceiling or pouring indefinite refractories, but repairing the ceiling while continuing operation is extremely difficult and expensive. It was difficult, and we couldn't repair enough.

  On the other hand, in patent document 1, the joint of a rail and the joint of a rail receiving beam is welded, respectively, and it is set as one seamless rail and a rail receiving beam, and these are supported by a rail cradle. A method has been disclosed for eliminating the impact and partial overload when running a charcoal vehicle caused by a seam.

Utility Model Registration No. 2570693

  However, in the case of the method described in Patent Document 1, a rail without a joint is already in a state in which the ceiling bricks and joints below the rail pedestal are damaged or deformed and the rail pedestal is sinking. It is difficult to install the rail receiving beam, and after all, it is necessary to repair the ceiling brick and adjust the height of the rail receiving base, which is not realistic.

  Moreover, even if it uses the method of patent document 1, it does not change that a repeated load other than the impact force by a charcoal vehicle acts on a rail cradle, and damage to the ceiling part in which the charcoal vehicle rail cradle is installed. It does not lead to a drastic improvement against the occurrence of (damage and deformation of ceiling bricks and joints).

  The present invention has been made in view of the above-described circumstances, and in a coke oven, damage to a ceiling portion (a damage or deformation of a ceiling portion brick or a joint) on which a charred vehicle rail cradle is installed is accurately performed. An object of the present invention is to provide a coal carriage rail cradle that can be suppressed and a method of installing the same.

  In order to solve the above problems, the present invention has the following features.

  [1] A coal-mounted vehicle rail pedestal that is installed on a ceiling portion of a coke oven and supports a coal-coated vehicle rail, and immediately below and in the vicinity of the coal-coated vehicle rail, A charcoal rail pedestal characterized in that a gap is provided between them.

  [2] The charred car rail cradle according to [1], wherein steel members or castings are joined to both ends of the existing charred car rail cradle in the furnace length direction.

  [3] The coal car rail cradle according to [1] or [2], wherein the gap is filled with a material having a small Young's modulus that hardly contributes to transmission of the load of the car.

  [4] A method of installing a coal-car rail support that supports the coal-carrying rail on the ceiling of the coke oven, wherein the bottom surface and the ceiling of the coal-car rail are directly below and in the vicinity thereof. The installation method of the charcoal-car rail receiving base characterized by providing a clearance gap between parts.

  [5] The charcoal vehicle rail pedestal according to [4], wherein the charcoal vehicle rail pedestal is formed by joining steel members or castings to both ends in the furnace length direction of an existing charcoal vehicle rail cradle. How to install the cradle.

  [6] The method for installing a charred car rail cradle according to [4] or [5], wherein the gap is filled with a material having a small Young's modulus that hardly contributes to transmission of the charred car load.

  In the present invention, it is possible to accurately suppress damage to the ceiling portion on which the coal-equipped vehicle rail cradle is installed (damage or deformation of ceiling bricks or joints).

It is a figure which shows Embodiment 1 of this invention. It is a figure which shows Embodiment 2 of this invention. It is a figure which shows Embodiment 3 of this invention. It is a figure which shows Embodiment 4 of this invention. It is a figure which shows Embodiment 5 of this invention. It is a figure which shows Embodiment 6 of this invention. It is a figure for demonstrating the effect in this invention. It is a figure which shows the conventional charcoal vehicle rail track stand. It is a figure which shows the effect | action of the charcoal vehicle load in the conventional charcoal vehicle rail stand.

  In the present invention, a gap is provided between the lower surface of the coal-car train rail cradle that supports the coal-car train rail and the ceiling portion directly below and in the vicinity thereof. As a result, the load of the charcoal vehicle does not directly act on the ceiling portion directly under and near the rail of the charcoal vehicle, and the stress and deformation of the ceiling and furnace wall due to the repeated load of the charcoal vehicle can be alleviated. It is possible to prevent the occurrence of damage to the wall and furnace wall (damage and deformation of bricks and joints). Moreover, even if the ceiling part or the furnace wall part has already been damaged, the progress of the damage can be suppressed or the traveling speed can be reduced.

  Embodiments (Embodiments 1 to 6) of the present invention will be described below.

[Embodiment 1]
1A and 1B are diagrams showing Embodiment 1 of the present invention, in which FIG. 1A is a top view and FIG. 1B is a longitudinal sectional view.

  As shown in FIG. 1, in the rail cradle 21 according to the first embodiment, the height position of the lower surface of the rail cradle 21 is increased directly below and in the vicinity of the rail 13, and the lower surface of the rail cradle 21 and the ceiling portion 2. A gap (gap part) 20 is provided between them.

  Parts that interfere with the existing equipment such as the flue inspection hole 3 are dealt with by punching or notching. In order to adjust the installation position of the rail cradle 21 to a predetermined position and perform uniform load transmission to the ceiling portion 2, grout 24 is filled in the lower surface portion and the side surface portion of the rail cradle 21 other than the gap portion 20. Yes. Moreover, since it is desirable that there is no protrusion on the upper surface of the ceiling part 2, most of the rail receiving base 21 is preferably embedded in the ceiling part 2.

[Embodiment 2]
FIG. 2 is a diagram showing Embodiment 2 of the present invention.

  As shown in FIG. 2, the rail support 26 in the second embodiment is basically the same as that in the first embodiment, but in order to prevent the grout 24 from entering the gap 20, The seal material 27 is attached to both ends in the furnace length direction.

  Here, a sealing material is attached, but instead of this, a filler such as sponge, urethane, rubber or the like, or a discarded mold can be attached. Moreover, you may attach combining them.

[Embodiment 3]
FIG. 3 is a diagram showing Embodiment 3 of the present invention.

  As shown in FIG. 3, the rail cradle 31 according to the third embodiment has the same basic concept as that of the first embodiment, but the sole plate (for uniformly transmitting the load) to the lower surface of the rail cradle body 32. The steel plate) 33 is provided, so that a gap 20 is secured between the bottom surface of the rail receiving base 31 and the ceiling portion 2 directly below and in the vicinity of the rail 13.

  Parts that interfere with the existing equipment such as the flue inspection hole 3 are dealt with by punching or notching. In order to adjust the installation position of the rail cradle 31 to a predetermined position and perform uniform load transmission to the ceiling portion 2, the grout 24 is filled in the lower surface portion and the side surface portion of the rail cradle 31 other than the gap portion 20. Yes. Moreover, since it is desirable that there is no protrusion on the upper surface of the ceiling part 2, most of the rail receiving base 31 is preferably embedded in the ceiling part 2.

[Embodiment 4]
FIG. 4 is a diagram showing Embodiment 4 of the present invention.

  As shown in FIG. 4, the rail support 41 in the fourth embodiment has steel members 42 (for example, vertical) at both ends of the existing rail support 11 in the furnace length direction (horizontal direction perpendicular to the longitudinal direction of the rail). The welded member such as a H-shaped steel reinforced with ribs or the like, or a welded member such as a built-up H-shaped steel) is integrated by a bolt joint 43. At this time, the height position of the lower surface of the steel member 42 is the existing rail. By making the height lower than the height position of the lower surface of the cradle 11, a gap 20 is obtained between the lower surface of the existing rail cradle 11 and the ceiling portion 2.

  Parts that interfere with the existing equipment such as the flue inspection hole 3 are dealt with by punching or notching. In order to adjust the installation position of the rail cradle 41 to a predetermined position and perform uniform load transmission to the ceiling portion 2, the grout 24 is filled in the lower surface portion and the side surface portion of the rail cradle 41 other than the gap portion 20. Yes. Moreover, since it is desirable that there is no protrusion on the upper surface of the ceiling portion 2, most of the rail receiving base 41 is preferably embedded in the ceiling portion 2.

  Incidentally, welding may be used in place of the bolt joint 43. Moreover, it may replace with the steel member 42 and a casting may be sufficient.

[Embodiment 5]
FIG. 5 is a diagram showing Embodiment 5 of the present invention.

  As shown in FIG. 5, the rail cradle 51 in the fifth embodiment is basically the same as the rail cradle 26 in the second embodiment, but for the purpose of preventing the aging degradation of the rail cradle 51 and bricks, The gap portion 20 is filled with a filler 52 having a small Young's modulus (for example, a material having a Young's modulus of 200 MPa or less) that hardly contributes to the transmission of the loaded coal car load. As a specific material of the filler 52, for example, a contractible mortar (cushion mortar) can be used.

  The same applies to the other rail receivers 21, 31, 41 described above.

[Embodiment 6]
In this Embodiment 6, it replaces with the existing rail stand 11, and the procedure at the time of installing the rail bases 21 and 41 shown in said Embodiment 1, 4 is demonstrated using FIG.

  First, the case where the rail receiving base 21 is installed will be described.

  (S1) After the rail receiving beam 12 is supported by the temporary receiving jig 61, the existing rail receiving base 11 is removed.

  (S2) Next, the rail receiving base 21 is newly manufactured. Note that (S1) and (S2) may be reversed.

  (S3) Next, excavation, repair, and correction of the installation position are performed, the grout 24 is filled, and the newly manufactured rail receiver 21 is installed at a predetermined installation position.

  (S4) Finally, after curing the grout 24, the provisional jig 61 is removed and the process is completed.

  Next, the case where the rail receiving base 41 is installed will be described.

  (P1) After the rail receiving beam 12 is supported by the temporary receiving jig 61, the existing rail receiving base 11 is taken out.

  (P2) Next, the updated rail receiving base 41 is obtained by joining and integrating the steel member 42 to both ends of the existing rail receiving base 11 taken out.

  (P3) Next, excavation, repair, and correction of the installation position are performed, the grout 24 is filled, and the updated rail receiving base 41 is installed at a predetermined installation position.

  (P4) Finally, after curing the grout 24, the provisional jig 61 is removed and the process is completed.

  In addition, it replaces with the existing rail receiving base 11, and when installing the rail receiving bases 26, 31, and 51 shown in said Embodiment 2,3,5, what is necessary is just to follow according to said procedure.

  Incidentally, in the newly installed coke oven, when installing the rail holders 21, 26, 31, 51 shown in the above-described Embodiments 1, 2, 3, and 5, the rail holders 21 and the like, the rail receivers 12, What is necessary is just to install in order of the rail 13.

  In addition, this invention is not limited to said Embodiment 1-6, For example, it can also implement combining them suitably.

  Here, in the present invention, a mechanism for relieving stress and deformation of the ceiling part 2 and the furnace wall part 4 due to the repeated load of the coal car will be described with reference to FIG. In addition, in FIG. 7, although the rail stand 41 in said Embodiment 4 is installed, it is the same also in the other rail bases 21, 26, 31, 51.

  As shown in FIG. 7, by providing a gap 20 between the lower surface of the rail cradle 41 and the ceiling portion 2 immediately below the rail 13 and in the vicinity thereof, the loaded coal load W is directly below and near the rail 13. The charcoal vehicle load W can be dispersed at a location away from the rail 13 and no longer acting. Thereby, the stress which acts directly under the rail 13 and its vicinity can be reduced.

  In addition, regarding the direction in which the load of the charcoal vehicle is dispersed, the longitudinal direction of the rail may be already greatly damaged by the repeated load of the charcoal vehicle, which is not preferable. It is good to disperse the charcoal vehicle load in the furnace length direction which is the direction away from the position of the rail 13.

  As a result, the charcoal vehicle load W does not directly act on the ceiling portion 2 directly under and near the rail 13, and the stress and deformation of the ceiling portion 2 and the furnace wall portion 4 due to the repeated load W of the charcoal vehicle are reduced. It is possible to prevent the occurrence of damage to the ceiling part 2 and the furnace wall part 4 (damage and deformation of bricks and joints). Moreover, even if the ceiling part 2 and the furnace wall part 4 have already been damaged, the progress of the damage can be suppressed or the traveling speed can be reduced.

DESCRIPTION OF SYMBOLS 1 Coke oven 2 Ceiling part 3 Flue inspection hole 4 Furnace wall part 11 Rail cradle (coal-car rail cradle)
12 Rail receiving beam (Coaled car rail receiving beam)
13 rail (coal-car rail)
20 Clearance 21 Rail cradle (Coaled car rail cradle)
24 grout 26 rail cradle (coal vehicle rail cradle)
27 Sealing material 31 Rail cradle (coal vehicle rail cradle)
32 Rail base body 33 Sole plate 41 Rail base (Coated car rail base)
42 Steel member 43 Bolt joint 51 Rail cradle (coal vehicle rail cradle)
52 Filling material 61 Temporary receiving jig

Claims (6)

A coke oven in which a charcoal vehicle rail pedestal for supporting a coal car rail via a charcoal vehicle rail support beam is installed on a ceiling, wherein the coal car rail cradle is perpendicular to the coal car rail The furnace length direction is the longitudinal direction, and a gap is provided between the lower surface and the ceiling portion of the charcoal vehicle rail cradle directly below and near the charcoal vehicle rail so that the charcoal vehicle load does not act directly. A coke oven characterized by   The coke oven according to claim 1, wherein steel members or castings are joined to both ends of the existing charcoal rail rail pedestal in the furnace length direction.   The coke oven according to claim 1 or 2, wherein the gap is filled with a material having a Young's modulus of 200 MPa or less. A method of installing a coal-car rail rail pedestal that supports a coal-car rail in a ceiling portion of a coke oven via a charcoal rail rail-supporting beam, wherein the charcoal rail rail cradle is perpendicular to the coal-car rail Coke oven furnace length direction is set as the longitudinal direction, and the gap where the charcoal vehicle load does not directly act between the lower surface and the ceiling of the charcoal rail rail cradle immediately below and in the vicinity of the charcoal rail rail The installation method of the coal-carrying rail gauge stand characterized by providing.   The charcoal vehicle rail cradle is obtained by taking out an existing charcoal vehicle rail cradle and joining steel members or castings at both ends in the furnace length direction of the existing charcoal vehicle rail cradle. Item 5. A method for installing a coal-car rail cradle according to item 4.   6. The installation method of a charred vehicle rail cradle according to claim 4 or 5, wherein the gap is filled with a material having a Young's modulus of 200 MPa or less.