JP2015081300A - Method of constructing oven body of coke oven - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the period for construction of an oven body of a coke oven.SOLUTION: A method of constructing an oven body of a coke oven includes (a) a step of forming a plurality of brick wall modules 10 consisting of a plurality of steps of a brick layer which is composed of a plurality of bricks 2 arranged in the plane direction including the X and Y directions orthogonal to each other and laminated in the Z direction orthogonal to the plane direction, in a place separated from an oven body construction site, and (b) a step of constructing a brick wall by laminating a plurality of steps of the brick wall modules 10 so that the Z directions of the individual brick wall modules 10 match one another, at the oven body construction site.

Description

  The present invention relates to a furnace body construction method for a coke oven.

  The furnace body of the coke oven is a brick structure in which a plurality of bricks are stacked, and mainly includes a heat storage chamber, a corbel, a combustion chamber, a carbonization chamber, and a furnace top. A plurality of combustion chambers and carbonization chambers are alternately arranged along a direction called a furnace group direction. Further, the combustion chamber and the carbonization chamber are partitioned by a brick wall surrounding the combustion chamber. The combustion chamber is partitioned into a plurality of small chambers called flue (flues) in an area surrounded by a brick wall.

  In the coke oven, the heat generated by burning the combustion gas in the combustion chamber is transferred from the combustion chamber to the carbonization chamber via the brick wall, so that the coal in the carbonization chamber is carbonized by distillation to produce coke. . The inside of the carbonization chamber into which the raw material coal is charged is heated to a temperature of 1000 ° C. or higher necessary for carbonization of the coal. When carbonization is completed, the two side lids facing each other in the longitudinal direction of the carbonization chamber, so-called furnace lids, are opened, from one side (machine side) to the other side (coke side), The produced coke is extruded with an extruder. The extruded coke is accommodated in a fire extinguisher arranged outside the furnace lid. Thereafter, the furnace lid is closed, and coal as a raw material is charged from a charging port provided at the upper part of the carbonization chamber. In the coke oven, this series of cycles is repeated about once a day for one carbonization chamber. In this series of cycles, the inside of the carbonization chamber is temporarily cooled when coke is pushed out or when coal is charged. In addition, there are impacts such as the wear of brick walls and the impact of the coal to be charged due to the extrusion of coke.

  Since these operations are repeated, especially the brick wall surrounding the combustion chamber is subjected to thermal and mechanical shocks, and cracks may occur in the joints of the bricks constituting the brick wall and in the bricks. When such a crack progresses, the combustion chamber and the carbonization chamber communicate with each other. If such cracks occur, dust in the carbonization chamber when charging coal flows into the combustion chamber, or a portion of the coke oven gas generated when carbonizing the coal flows out to the combustion chamber. This is not preferable because there is an effect that dust and coal gas become soot in the combustion chamber.

  Therefore, in the coke oven, the bricks on the brick wall are regularly inspected for cracks and chipped corners, and repaired by thermal spraying or partial repair by replacing the brick wall as necessary. ing. Patent Document 1 discloses a technique for repairing a coke oven using a large mold module. This technology can shorten the time required for maintenance of the heating wall in the coke oven by using a large mold module that has been newly molded in the size of a plurality of bricks to be repaired. is there.

JP-A-5-230466

  By the way, in the full renewal accompanying the furnace body aging of the coke oven, it is general that a hand-built construction method is adopted after the existing brick is demolished. In this method of building by hand construction, bricks are piled up one step at the furnace construction site of the furnace body, and only a certain amount of density is allowed due to the construction of the furnace construction, so a considerable amount of time is required for construction. And the furnace construction period becomes longer. In particular, since the transshipment work on the brick wall of the combustion chamber is narrow, the time required for construction becomes even longer.

Therefore, the present inventor made the present invention by paying attention to the fact that the brick wall surrounding the combustion chamber has an annular shape closed in the plane direction.
In the technique of Patent Document 1 described above, large-sized molded modules are bricked one by one at the furnace body construction site of the furnace body.
The objective of this invention is providing the technique which can aim at shortening of the furnace body construction period of a coke oven.

  (1) A method for constructing a coke oven according to the present invention includes: (a) a plurality of bricks arranged in a plane direction including a first direction and a second direction orthogonal to each other at a separate site away from a furnace construction site. Forming a plurality of brick wall modules in which a plurality of brick layers are laminated in a third direction orthogonal to the planar direction, and (b) each of the plurality of brick wall modules at the furnace body construction site. Forming a brick wall by laminating the plurality of brick wall modules in a plurality of stages so that the third direction of the first and second directions coincides.

  According to the above-mentioned means (1), when one or all of the furnace body is renewed or newly constructed, one brick wall module is installed at the furnace body construction site, so that the number of brick layers of the brick wall module is increased. Since the corresponding amount of brickwork is completed, it is possible to shorten the time for on-site construction required for building the brick wall as compared with the case of brickworking one step at a time. In the formation of the brick wall module, the restriction of the dense construction of the furnace builders is eased, and a plurality of brick wall modules can be formed at the same time. As a result, the furnace construction period of the coke oven can be shortened.

(2) In the method for constructing a coke oven according to the means (1),
The brick wall module extends in the first direction and is spaced apart from each other in the second direction, and extends in the second direction and extends in the first direction. And the third and fourth outer wall portions connected to the first and second outer wall portions, respectively, and in the region surrounded by the first to fourth outer wall portions. A plurality of inner wall portions extending in two directions, connected to the first and second outer wall portions and arranged at predetermined intervals in the first direction, and And the second outer wall portion is formed in a planar shape longer than the third and fourth outer wall portions, and has an annular shape in which the outer periphery composed of the first to fourth outer wall portions is closed, A region surrounded by the first to fourth outer wall portions is the plurality of inner walls. It is preferably a combustion chamber having a plurality of flue regions partitioned in minutes.

According to the means (2) described above, the brick wall module has a combustion chamber surrounded by the first to fourth outer wall portions and a plurality of flue regions partitioned by the plurality of inner wall portions. Therefore, by laminating the plurality of brick wall modules 10, a brick wall can be constructed, and a combustion chamber surrounded by the brick wall can be constructed.
In addition, the brick wall module has an annular shape with the outer periphery made up of the first to fourth outer wall portions closed, and it is necessary to configure a combustion chamber by connecting other bricks or other brick wall modules in the planar direction. Therefore, the combustion chamber can be easily constructed at the furnace construction site.

(3) In the method for constructing a coke oven body according to the means (1) or (2),
In the step (b), in each of the plurality of brick wall modules, a mortar is interposed between a mating brick on which the brick wall module is installed and a lowermost brick of the brick wall module. An installation step of installing the brick wall module on the brick of
In the installation step, a spacer is provided between the mating brick and the lowermost brick of the brick wall module to ensure a separation distance between the mating brick and the lowermost brick of the brick wall module. It is preferable that

  According to the above means (3), when the brick wall module is installed on the mating brick with the mortar interposed between the mating brick on which the brick wall module is installed and the bottom brick of the brick wall module, The distance between the brick on the side and the bottom brick of the brick wall module is secured by the spacer, so even when installing a heavy brick wall module, the thickness of the mortar can be reduced without being pushed out of the joint. Can be secured. As a result, even when building using a brick wall module, a furnace body of a coke oven with high dimensional accuracy can be built.

(4) In the method for constructing a coke oven body according to the means (3),
The spacer is preferably formed in advance so as to protrude from the lower surface of the lowermost brick of the brick wall module.
According to the above-mentioned means (4), it is possible to save the trouble of arranging the spacers individually before installing the brick wall module on the other brick, so it is easy to install the brick wall module at the furnace construction site. Can be. As a result, a furnace body of a coke oven with high dimensional accuracy can be constructed, and the furnace body construction period of the coke oven can be further shortened compared to the case where the spacers are individually arranged.

(5) In the method for constructing a coke oven body according to the means (2),
A transport step of transporting the plurality of brick wall modules individually from the separate ground to the furnace body construction site with a transport frame;
The brick wall module has a structure in which a lowermost brick of the first outer wall portion and a lowermost brick of the second outer wall portion are supported with each other in the second direction,
In the transporting step, the transport frame sandwiches the brick wall module by sandwiching the lowermost brick of the first outer wall portion and the lowermost brick of the second outer wall portion inward. It is preferable to grip.

According to the means (5) described above, the transport frame is configured such that the brick wall module is configured by sandwiching the lowermost brick of the first outer wall portion and the lowermost brick of the second outer wall portion inward. Therefore, the brick wall module can be installed with the mortar interposed in the mating brick in a state where the conveyance frame grips the brick wall module.
Further, the brick wall module has a structure in which the lowermost brick of the first outer wall portion and the lowermost brick of the second outer wall portion are supported by each other in the second direction. Even if the lowermost brick of the outer wall portion and the lowermost brick of the second outer wall portion are sandwiched inward, it is possible to suppress a problem that the brick is displaced inward.

(6) In the method for constructing a coke oven body according to the means (5),
The lowermost brick of the first outer wall part has a first part constituting the first outer wall part and a second part constituting the inner wall part, and the width of the first part is Formed in a T-shaped planar shape wider than the width of the second portion, the lowermost brick of the second outer wall portion constitutes the first portion and the inner wall portion constituting the second outer wall portion Preferably, the first portion is formed in a T-shaped planar shape having a width wider than that of the second portion.

  According to the means (6) described above, the lowermost brick of the first outer wall portion and the lowermost brick of the second outer wall portion are mutually supported in the first direction while being supported with each other in the second direction. The space | interval of two adjacent inner wall parts can be ensured.

The effects obtained by the representative ones of the inventions disclosed in the present application will be briefly described as follows.
According to the present invention, the furnace body construction period of the coke oven can be shortened.

It is a front view which shows the structure of the furnace body of the coke oven which concerns on one Embodiment of this invention. It is sectional drawing which follows the AA line of FIG. It is a side view of the brick wall shown in FIG. It is a perspective view of the brick wall module used for construction of the furnace body of FIG. It is a side view of the brick wall module of FIG. FIG. 6 is an enlarged side view in which a part of FIG. 5 is enlarged. It is a top view of the brick wall module of FIG. It is the enlarged plan view which expanded a part of FIG. It is sectional drawing which follows the BB line of FIG. It is a bottom view of the brick wall module of FIG. It is the enlarged bottom view which expanded a part of FIG. It is a top view which shows the state which mounted | wore with the conveyance frame to the brick wall module of FIG. It is the side view seen from the direction of the arrow L of FIG. It is a figure which expands and shows the structure of the holding | gripping mechanism seen from the direction of the arrow M of FIG. It is a flowchart for demonstrating the furnace body construction | assembly of the coke oven of this embodiment. FIG. 4 is a side view illustrating a brick wall module installation process in the construction of a coke oven of the present embodiment, showing a state in which the first brick wall module is installed at the furnace construction site. It is a figure which shows the separation state of the brick of the furnace body construction site, and the brick of the lowest stage of the first stage brick wall module. In the furnace body construction of the coke oven of the present embodiment, it is a diagram for explaining the installation process of the brick wall module, is a side view showing a state in which the next brick wall module is installed in the first brick wall module. . It is a figure which shows the separation state of the uppermost brick of the first stage brick wall module, and the lowermost brick of the next stage brick wall module.

  Hereinafter, the construction of a coke oven furnace according to an embodiment of the present invention will be described with reference to FIGS. In addition, in order to make drawing easy to see, in FIG.3, FIG.5, FIG.16, FIG. 18, the brick located in the lowest step (1st step) of the brick wall module mentioned later is shown by hatching. Since FIGS. 10 and 11 are bottom views of the brick wall module, the first outer wall portion 10a and the second outer wall portion 10b are different from those in FIGS. 7 and 8 which are plan views of the brick wall module. It is swapped up and down.

First, the structure of the furnace body of a coke oven is demonstrated using FIG. 1 thru | or FIG.
The coke oven according to the present embodiment includes a furnace body 1 shown in FIGS. 1 to 3. In addition, the coke oven according to the present embodiment includes a charcoal tank, a moving machine (a charcoal car, an extruder, a guide car, a fire extinguisher), a fire extinguishing facility, and the like, although not shown.
The furnace body 1 is a brickwork structure in which a plurality of bricks 2 are stacked, and the horizontal joints 2b along the X direction or the Y direction are continuous joints, but the vertical joints 2a along the Z direction alternate for each stage. Takes a staggered arrangement. The furnace body 1 mainly includes a heat storage chamber 3, a corbel 4, a combustion chamber 5, a carbonization chamber 7, and a furnace top 8, and a plurality of combustion chambers 5 and carbonization chambers 7 are alternately arranged along the Y direction. It is arranged. The combustion chamber 5 and the carbonization chamber 7 are partitioned by a brick wall 6 formed so as to surround the periphery of the combustion chamber 5. The combustion chamber 5 is partitioned into a plurality of flue regions 5 a in the region surrounded by the brick wall 6.

  The brick wall 6 and the carbonization chamber 7 extend in the X direction in a plane direction including the X direction (longitudinal direction) and the Y direction (short direction) orthogonal to each other, and are long and have the X direction as a longitudinal direction. Is formed. Further, the brick wall 6 and the carbonization chamber 7 are configured to have a height in the Z direction (height direction) orthogonal to the X direction and the Y direction, respectively. In this embodiment, the brick wall 6 and the carbonization chamber 7 have a length in the X direction of about 16 m and a height in the Z direction of about 6 to 8 m. The width of the brick wall 6 in the Y direction is about 750 to 1150 mm, and the width of the carbonization chamber 7 in the Y direction is about 400 to 600 mm.

The brick wall 6 surrounding the periphery of the combustion chamber 5 is constructed by a module method using the brick wall module 10 shown in FIGS. In the present embodiment, five brick wall modules 10 are used for one brick wall 6 (see FIG. 3). The brick wall module 10 can be used for the construction of a part or the whole of the furnace body 1 or when it is newly constructed.
Next, the structure of the brick wall module 10 is demonstrated using FIG. 4 thru | or FIG.

The brick wall module 10 has a brick structure in which a plurality of brick layers in which a plurality of bricks 2 are arranged in a plane direction including the X direction and the Y direction are stacked in a plurality of stages in the Z direction perpendicular to the plane direction. In this embodiment, the brick wall module 10 has, for example, an eight-stage laminated structure (see FIG. 5).
Here, in the description of the brick wall module 10, the brick 2 constituting the eighth stage, that is, the uppermost brick layer from the bottom, may be referred to as a brick 13 individually. Further, the brick 2 constituting the first tier, that is, the lowest tier brick layer from the bottom, may be referred to as a brick 14 individually.

The brick wall module 10 includes first and second outer wall portions 10a and 10b extending in the X direction and spaced apart from each other in the Y direction, and extending in the Y direction, spaced apart from each other in the X direction, and the first and second It has 3rd and 4th outer wall part 10c, 10d connected with each of 2nd outer wall part 10a, 10b.
The brick wall module 10 extends in the Y direction within a region surrounded by the first to fourth outer wall portions 10a to 10d, and is connected to each of the first and second outer wall portions 10a and 10b. And a plurality of inner wall portions 10e arranged at predetermined intervals in the X direction.

The brick wall module 10 is formed in a rectangular planar shape in which the first and second outer wall portions 10a and 10b are longer than the third and fourth outer wall portions 10c and 10d.
Here, the brick wall module 10 has a region surrounded by the first to fourth outer wall portions 10a to 10d, and this region corresponds to the combustion chamber 5 described above. Called the combustion chamber 5. Further, the region surrounded by the first to fourth outer wall portions 10a to 10d is partitioned into a plurality of small chambers by a plurality of inner wall portions 10e, and this small chamber corresponds to the above-described flue region 5a. The wall module 10 is also called the flue region 5a. That is, in the brick wall module 10, the combustion chamber 5 surrounded by the first to fourth outer wall portions 10a to 10d is partitioned into a plurality of flue regions 5a by the plurality of inner wall portions 10e.

In the brick wall module 10, the vertical joint 2a between the two bricks 2 adjacent to each other in the plane direction including the X direction and the Y direction, and the horizontal joint 2b between the two bricks 2 adjacent to each other in the Z direction, It is filled with mortar 19 (see FIG. 6). The brick 2 and the mortar 19 are made of, for example, a heat-resistant silica material.
In the brick wall module 10, the uppermost (eighth-stage) brick layer is mainly composed of deformed bricks 13 a to 13 g and deformed bricks 13 r called front bricks, as shown in FIGS. 7 and 8. It is comprised by the combination of the some brick 13 (brick 2) containing ~ 13t.

  In the uppermost (eighth) brick layer, the first and second outer wall portions 10a, 10b are formed by a combination of bricks 13a, 13b, 13c, 13d, 13e, 13r, 13s. Further, the third and fourth outer wall portions 10c, 10d are inwardly arranged in two rows, and a combination of a row made of bricks 13d, 13e, 13f and a row made of bricks 13r, 13s, 13t. Is formed by. In addition, the inner wall portion 10e has two types of inner wall portions 10e1 and 10e2 with different brick combinations. One inner wall portion 10e1 is formed by a combination of bricks 13b and 13f, and the other inner wall portion 10e2 is made up of bricks 13c and 13g. It is formed by a combination.

  In the uppermost first and second outer wall portions 10a and 10b, the bricks 13a, 13b, 13c, 13d, and 13e are connected to each other in the X direction. Further, in the third and fourth outer wall portions 10c and 10d at the uppermost stage, the bricks 13r, 13s, and 13t constituting the outer row and the bricks 13d, 13e, and 13f constituting the inner row are arranged in the Y direction. Are connected to each other.

  The bricks 13b and 13c constitute an outer wall portion and an inner wall portion. The brick 13b constituting the first outer wall portion 10a and the inner wall portion 10e (10e1) and the brick 13b constituting the second outer wall portion 10b and the inner wall portion 10e (10e1) are supported with each other via the brick 13f. ing. Further, the brick 13c constituting the first outer wall portion 10a and the inner wall portion 10e (10e2) and the brick 13c constituting the second outer wall portion 10b and the inner wall portion 10e (10e2) are mutually connected via the brick 13g. It is supported.

  Note that the second to seventh brick layers are also configured by a combination of bricks 13 similar to the uppermost (eighth) brick layer. However, the vertical joint 2a between two bricks 2 adjacent to each other in the same brick layer (X direction or Y direction) is connected in a straight line across the two brick layers adjacent to each other in the Z direction (stacking direction). In order to avoid this, for example, the arrangement of a brick group composed of a combination of bricks 13b and 13f and a brick group composed of a combination of bricks 13c and 13g is changed step by step (for each layer).

In the brick wall module 10, as shown in FIGS. 10 and 11, the lowermost (first) brick layer mainly includes deformed bricks 14 b to 14 g and deformed bricks 14 r called front bricks. It is comprised by the combination of the some brick 14 (brick 2) containing -14t etc.
In the lowermost (first) brick layer, the first and second outer wall portions 10a, 10b are formed by a combination of bricks 14b, 14c, 14d, 14e, 14r, 14s. The third and fourth outer wall portions 10c, 10d are in two rows inward, and a combination of a row made of bricks 14d, 14e, 14f and a row made of bricks 14r, 14s, 14t. Is formed by. Further, the inner wall portion 10e has two types of inner wall portions 10e1 and 10e2 with different brick combinations. One inner wall portion 10e1 is formed by a combination of bricks 14b and 14f, and the other inner wall portion 10e2 is made up of bricks 14c and 14g. It is formed by a combination.

  In the lowermost first and second outer wall portions 10a and 10b, the bricks 14b, 14c, 14d, and 14e are connected to each other in the X direction. Further, in the third and fourth outer wall portions 10c and 10d in the lowermost stage, the bricks 14r, 14s, and 14t constituting the outer row and the bricks 14d, 13e, and 14f constituting the inner row are arranged for each row in the Y direction. Are connected to each other.

  The bricks 14b and 14c constitute an outer wall portion and an inner wall portion. The bricks 14b and 14c have a T-shaped planar shape in which the width of the portion constituting the outer wall portion (10a, 10b) is wider than the width of the portion constituting the inner wall portion (10e1, 10e2). That is, the lowermost bricks 14b and 14c of the first outer wall portion 10a have the first portions 14b1 and 14c1 constituting the first outer wall portion 10a and the second portions 14b2 and 14c2 constituting the inner wall portion 10e. The first portions 14b1 and 14c1 are formed in a T-shaped planar shape that is wider than the widths of the second portions 14b2 and 14c2. Further, the lowermost bricks 14b and 14c of the second outer wall portion 10b also have the first portions 14b1 and 14c1 constituting the second outer wall portion 10b and the second portions 14b2 and 14c2 constituting the inner wall portion 10e. The first portions 14b1 and 14c1 are formed in a T-shaped planar shape that is wider than the widths of the second portions 14b2 and 14c2.

The bricks 14d and 14e constitute an outer wall portion (10a, 10b) extending in the X direction and an outer wall portion (10c, 10d) extending in the Y direction, and have an L-shaped planar shape.
Since the bricks 14r and the bricks 14s are arranged at the corners where the outer wall portions (10a, 10b) extending in the X direction and the outer wall portions (10c, 10d) extending in the Y direction intersect, An extending outer wall portion (10a, 10b) and an outer wall portion (10c, 10d) extending in the Y direction are configured.

  The brick 14b constituting the first outer wall portion 10a and the inner wall portion 10e (10e1) and the brick 14b constituting the second outer wall portion 10b and the inner wall portion (10e1) are supported by each other via the brick 14f. Yes. Further, the brick 14c constituting the first outer wall portion 10a and the inner wall portion (10e2) and the brick 14c constituting the second outer wall portion 10b and the inner wall portion (10e2) are supported with each other through the brick 14g. ing. Moreover, the brick 14r which comprises the 1st outer wall part 10a, and the brick 14s which comprises the 2nd outer wall part 10b are mutually supported via the brick 14t.

That is, the brick wall module 10 according to the present embodiment includes a brick (14b, 14c, 14d, 14r) and a second outer wall portion constituting the first outer wall portion 10a in the lowermost (first step) brick layer. The bricks (14b, 14c, 14e, 14s) constituting 10b are supported with each other in the Y direction.
The second to eighth (top) bricks 13f and 13g (see FIG. 8) and the first (bottom) bricks 14f and 14g (see FIG. 11) are in the thickness direction. That is, it has a vent hole 15 extending in the Z direction. The vent hole 15 communicates with each brick layer. The brick 13 or the brick 14 may be provided with a hole for ejecting the gas passing through the vent hole 15 to the flue region 5a.

  As shown in FIGS. 8, 9, and 11, the brick 2 of each brick layer (each step) is fitted to the upper surface among the upper surface and the lower surface that are opposite to each other in the thickness direction (Z direction). A concave portion 16 is provided, and a fitting convex portion 17 is provided on the lower surface. The fitting concave portion 16 and the fitting convex portion 17 serve to prevent the upper and lower two bricks 2 that are adjacent to each other in the Z direction (the brick thickness direction) from shifting, and are formed in the fitting concave portion 16 of the lower brick 2. The upper and lower bricks 2 are positioned by fitting the fitting projections 17 of the upper brick 2.

  In addition, the fitting convex part 17 of the lowermost brick 14 (brick 2) of the brick wall module 10 is a fitting concave part of a mating brick on which the brick wall module 10 is installed, for example, the first stage to be installed first in the furnace construction site. In the case of the brick wall module 10, in the case where the upper brick wall module 10 is installed in the lower brick wall module 10 already installed in the furnace construction site, the lower brick wall module 10 is installed in the brick fitting recess at the furnace construction site. 10 are fitted into the fitting recesses 16 of the uppermost brick 13 to position them.

  The brick wall module 10 has a plurality of spacers 18 formed in advance so as to protrude from the lower surface of the lowermost (first) brick 14 (see FIG. 9). The spacer 18 will be described in detail later. Referring to FIGS. 17 and 19, the brick (25 or 13) on the other side on which the brick wall module 10 is installed and the lowermost brick 14 of the brick wall module 10. When the brick wall module 10 is installed on the mating brick (25 or 13) with the mortar 19 interposed between the brick (2) and the brick 2 (25), the bottom of the mating brick (25 or 13) and the brick wall module 10 This is to ensure a separation distance t between the bricks 14. A plurality of the spacers 18 are provided for one brick 14 for balance.

The brick wall module 10 configured in this way is formed in advance in a separate site away from the furnace body construction site of the furnace body 1 and directly transported from this separate site to the furnace body construction site or once transported to the storage location. Transported to the furnace construction site. At this time, the brick wall module 10 is transported while being held by the transport frame 30 shown in FIGS.
Next, the transport frame 30 will be described with reference to FIGS.

  As shown in FIGS. 12 to 14, the transport frame 30 mainly includes a frame body 31 and a gripping mechanism 33. The frame main body 31 is formed in a rectangular parallelepiped according to the shape of the brick wall module 10, and has a shape that covers the brick wall module 10 from above and can be accommodated inside. In order to reduce the weight and weight of the frame main body 31, the upper chord member 31a, the lower chord member 31b, the first and second bundle members (vertical members) 31c1 and 31c2, the diagonal member 31d, the first and second cross beams (Lateral beam) The truss structure is composed of 31e1, 31e2, and the like.

  A plurality of gripping mechanisms 33 are arranged at predetermined intervals in the longitudinal direction (X direction) of the brick wall module 10. The gripping mechanism 33 mainly includes a hydraulic cylinder 34, a connecting arm 35, a gripping arm 36, and a gripping plate 37. The hydraulic cylinder 34 has a cylinder body supported rotatably on the upper end of the second bundle 31 c 2 of the frame body 31, and a cylinder shaft is coupled to one end side of the coupling arm 35. The other end side of the connecting arm 35 is rotatably connected to one end side of the grip arm 36 by a connecting pin. The grip arm 36 has a central portion rotatably supported on one end side of the second cross beam 31e2 of the frame main body 31 by a connecting pin, and a grip plate 37 is rotatably connected to the other end side by the connecting pin. ing.

The holding plate 37 is disposed at a position facing the lowermost brick 2 (14) of the first outer wall portion 10 a of the brick wall module 10. With respect to the grip plate 37, a grip plate 38 is also arranged on the frame body 31 at a position facing the lowermost brick 2 (14) of the second outer wall portion 10 b of the brick wall module 10.
The transport frame 30 configured in this way passes the lowermost brick 2 (14) of the first outer wall portion 10a and the lowermost brick 2 (14) of the second outer wall portion 10b toward the inside thereof. The brick wall module 10 can be gripped by the two gripping plates 37 and 38 being sandwiched by a load caused by the expansion and contraction of the hydraulic cylinder 34.

Next, the construction of a coke oven furnace using the brick wall module 10 will be described with reference to FIGS.
First, five brick wall modules 10 are formed in advance on one brick wall 6 in a separate site (offsite) away from the furnace body construction site (onsite) of the furnace body 1 (the brick wall in FIG. 15). Module forming step S11). The brick wall modules 10 are formed by hand, that is, bricks are stacked one by one. In the present embodiment, five brick wall modules 10 are used for one brick wall 6. Up to five brick wall modules 10 can be formed simultaneously with respect to the brick wall 6.

  Next, a plurality of brick wall modules 10 formed in a separate ground are directly transported from this separate ground to the furnace body construction site, or once transported to a storage place and then transported to the furnace body construction site (the brick wall in FIG. 15). Module transfer step S12). The plurality of brick wall modules 10 are transported while being individually held by the transport frame 30. Specifically, the brick wall module 10 is transported by being loaded and lifted on a transport vehicle in the state of being gripped by the transport frame 30, and then installed and landed at the installation position. In the conveyance frame 30, when the installation of the brick wall module 10 is finished, the grip is released, and the brick wall module 10 is returned and conveyed for the next conveyance.

  In the transport process of the brick wall module 10, the transport frame 30 sandwiches the lowermost brick 14 of the first outer wall portion 10a and the lowermost brick 14 of the second outer wall portion 10b inward. Thus, the brick wall module 10 is gripped. At this time, the brick wall module 10 is configured such that the lowermost brick 14 of the first outer wall portion 10a and the lowermost brick 14 of the second outer wall portion 10b are in the Y direction, that is, in the clamping direction by the transport frame 30. Since the structure is supported, the conveyance frame 30 sandwiches the lowermost brick 14 of the first outer wall portion 10a and the lowermost brick 14 of the second outer wall portion 10b toward the inside. However, it is possible to suppress problems such as the brick 14 being displaced inward.

  Next, a plurality of brick wall modules 10 are stacked on one brick wall 6 at the furnace construction site (brick wall module installation step S13 in FIG. 15). In this embodiment, the brick wall module 10 is laminated in five stages. Specifically, first, as shown in FIGS. 16 and 17, a mortar 19 is interposed between the brick 25 at the furnace body construction site and the lowermost brick 2 (14) of the first brick wall module 10. In this state, the first brick wall module 10 is installed on the furnace body construction site. Next, as shown in FIGS. 18 and 19, between the uppermost brick 13 of the first-stage brick wall module 10 and the lowermost brick 14 of the next-stage brick wall module 10 that are already installed at the furnace building construction site. The next brick wall module 10 is installed on the first brick wall module 10 with the mortar 19 interposed therebetween. Thereafter, the next-stage brick wall module 10 is sequentially installed on the next-stage brick wall module 10 in the same manner.

  In the installation process of the brick wall module 10, regardless of whether the first-stage brick wall module 10 or the next-stage brick wall module 10 is installed, the brick on the opposite side on which the brick wall module 10 is installed (in the case of installing the first-stage brick wall module 10, the furnace is constructed. When installing the brick 25 on the site and the brick wall module 10 of the next stage, a mortar 19 is interposed between the uppermost brick 13 of the previous brick wall module 10) and the lowermost brick 14 of the brick wall module 10 to be installed. However, between the mating brick 25 or 13 and the lowermost brick 14 of the brick wall module 10, the mating brick 25 or 13 and the lowermost brick 14 of the brick wall module 10 are connected. A spacer 18 is provided to ensure a separation distance t.

In this installation process of the brick wall module 10, by installing one brick wall module 10 at the furnace construction site, bricks corresponding to the number of brick layers of the brick wall module 10 are completed. Compared with the case where bricks are stacked every time, the time required for building the brick wall 6 can be shortened.
Then, the brick wall 6 surrounding the combustion chamber 5 is almost completed by constructing the remaining portion on the uppermost brick wall module 10 by, for example, manual stacking.

Here, the mortar 19 when the brick wall module 10 is installed is in a paste form, and after the brick wall module 10 is installed, it is dried and cured. Since the paste-like mortar 19 is easily deformed by a compressive force, it is difficult to ensure the thickness of the mortar 19 necessary for design when installing the brick wall module 10 having a large weight.
On the other hand, in the present embodiment, in the installation process of the brick wall module 10, the brick on the opposite side on which the brick wall module 10 is installed (the first brick wall module) When installing 10, brick 25 at the furnace construction site, when installing the next brick wall module 10, the uppermost brick 13 of the previous brick wall module 10) and the lowermost brick 14 of the brick wall module 10 to be installed. Since the spacer 18 which secures the separation distance t of the brick 25 or 13 of the other party and the lowermost brick 14 of the brick wall module 10 is provided between the two, the case of installing the brick wall module 10 having a large weight In this case, the thickness of the mortar 19 can be properly maintained to ensure dimensional accuracy.

Here, the brick wall module 10 is installed in the mating brick 25 or 13 with the mortar 19 interposed in the installation process, so that it is difficult to grip the bottom surface of the brick wall module 10 in the conveyance by the conveyance frame 30. It is.
On the other hand, in the present embodiment, the transport frame 30 sandwiches the lowermost brick 14 of the first outer wall portion 10a and the lowermost brick 14 of the second outer wall portion 10b toward the inside. Since the brick wall module 10 is gripped, the brick wall module 10 can be installed with mortar interposed in the mating brick in a state where the transport frame 30 grips the brick wall module 10.

  Further, when the brick wall module 10 is gripped by the transport frame 30, for example, when the second to eighth bricks 2 are sandwiched, the mortar cannot be expected to have a strength sufficient to bond the bricks below the sandwiching portion. There is a possibility that the lower brick 2 than the sandwiched brick 2 falls. On the other hand, in this embodiment, since the lowest brick 14 is sandwiched, the brick 2 can be prevented from falling.

The brick wall module 10 is transported by being loaded and lifted on the transport vehicle while being held by the transport frame 30 and then landed and installed at the installation position. In the transport frame 30, when the installation of the brick wall module is finished, the grip is released, and the transport is returned and transported for transporting the next brick wall module.
As described above, according to the furnace body construction method for a coke oven of the present embodiment, the following effects can be obtained.

  (1) A method for constructing a coke oven for a coke oven according to the present embodiment includes: (a) a step of previously forming a plurality of brick wall modules 10 having a brick structure in a separate ground away from a furnace body construction site; ) In the furnace construction site, a step of forming a brick wall 6 by laminating a plurality of brick wall modules 10 in a plurality of stages so that the height direction (Z direction) of each of the plurality of brick wall modules 10 matches. I have.

  Therefore, according to the method for constructing a furnace body of a coke oven of the present embodiment, when one or all of the furnace body is renewed or newly constructed, one brick wall module 10 is installed at the furnace body construction site to Since brick building corresponding to the number of steps of the brick layer of the wall module 10 is completed, the time required for building the brick wall 6 can be shortened as compared with the case of brick building for each step. As a result, the furnace construction period of the coke oven can be shortened.

  (2) In the furnace body construction method for a coke oven of the present embodiment, the brick wall module 10 is surrounded by the first to fourth outer wall portions 10a to 10d and the first to fourth outer wall portions 10a to 10d. And a plurality of inner wall portions 10e arranged at a predetermined interval in the Y direction within the enclosed region. In the brick wall module 10, the first and second outer wall portions 10a, 10b are formed in a planar shape longer than the third and fourth outer wall portions 10c, 10d, and the first to fourth outer wall portions 10a. A plurality of full regions in which a region surrounded by the first to fourth outer wall portions 10a to 10d is partitioned by a plurality of inner wall portions 10e. It is the structure which is the combustion chamber 5 which has 5a.

  Therefore, according to the furnace body construction method of the coke oven of the present embodiment, the brick wall module 10 includes the combustion chamber 5 surrounded by the first to fourth outer wall portions 10a to 10d, and the plurality of inner wall portions 10e. Therefore, the brick wall 6 can be constructed by stacking the plurality of brick wall modules 10 and the combustion chamber 5 surrounded by the brick wall 6 can be formed. Can be built.

Further, the brick wall module 10 has an annular shape in which the outer periphery made up of the first to fourth outer wall portions 10a to 10d is closed, and connects the other bricks or other brick wall modules in the plane direction to the combustion chamber. Therefore, the combustion chamber 5 can be easily constructed at the furnace construction site.
(3) In the coke oven furnace construction method of the present embodiment, in the installation process of the brick wall module 10, the mating brick (first-stage brick wall) is used in both the first-stage and next-stage brick wall modules 10. When installing the module 10, the brick 25 at the furnace construction site, when installing the next brick wall module 10, the uppermost brick 13) of the previous brick wall module 10) and the lowermost brick of the brick wall module 10 to be installed. 14 is provided with a spacer 18 that secures a separation distance t between the mating brick 25 or 13 and the lowermost brick 14 of the brick wall module 10.

  Therefore, according to the method of constructing the coke oven of the present embodiment, the mortar 19 is interposed between the mating brick 25 or 13 on which the brick wall module 10 is installed and the lowermost brick 14 of the brick wall module 10. When the brick wall module 10 is installed on the mating brick 25 or 13, the distance t between the mating brick 25 or 13 and the lowermost brick 14 of the brick wall module 10 is secured by the spacer 18. Even when the brick wall module 10 having a large size is installed, the thickness of the mortar 19 can be maintained. As a result, even when the brick wall module 10 is used for construction, the furnace body 1 of the coke oven with high dimensional accuracy can be constructed.

  Further, since the spacer 18 is provided between the mating brick 25 or 13 and the lowermost brick 14 of the brick wall module 10, the mortar 19 used for installing the lower brick wall module 10 is dried. Even without curing, the next brick wall module 10 can be installed on the lower brick wall module 10. As a result, it is possible to further shorten the furnace body construction period of the coke oven.

(4) In the furnace body construction method for a coke oven of this embodiment, the spacer 18 is formed in advance so as to protrude from the lower surface of the lowermost brick 14 of the brick wall module 10.
Therefore, according to the furnace body construction method of the coke oven of the present embodiment, it is possible to save the trouble of individually arranging the spacers 18 before installing the brick wall module 10 on the mating brick 25 or 13. The installation of the wall module 10 can be facilitated. As a result, the furnace body 1 of the coke oven with high dimensional accuracy can be constructed, and the furnace body construction period of the coke oven can be further shortened as compared with the case where the spacers 18 are individually arranged.

  (5) In the furnace body construction method for a coke oven of the present embodiment, the brick wall module 10 is such that the lowermost brick 14 of the first outer wall portion 10a and the lowermost brick 14 of the second outer wall portion 10b are Y. It is the structure mutually supported in the direction (short direction). Then, in the transporting process of gripping and transporting the brick wall module 10 to the transport frame 30, the transport frame 30 includes the lowermost brick 14 of the first outer wall portion 10a and the lowermost brick 14 of the second outer wall portion 10b. The brick wall module 10 is gripped by sandwiching.

  Therefore, according to the furnace body construction method for a coke oven of the present embodiment, the transport frame 30 is used to connect the lowermost brick 14 of the first outer wall portion 10a and the lowermost brick 14 of the second outer wall portion 10b. Since the brick wall module 10 is gripped by being pinched inward, the brick wall module 10 is interposed with the mortar 19 interposed in the mating brick 25 or 13 while the transport frame 30 grips the brick wall module 10. 10 can be installed.

In addition, since the transport frame 30 sandwiches the lowermost brick 14, the lower brick 2 falls from the gripped brick 2, which is likely to occur when the second to eighth bricks 2 are sandwiched, for example. It is possible to prevent malfunctions such as As a result, the brick wall module 10 can be efficiently conveyed without damaging the brick wall module 10.
Further, the brick wall module 10 has a structure in which the lowermost brick 14 of the first outer wall portion 10a and the lowermost brick 14 of the second outer wall portion 10b are supported with each other in the Y direction. Even when the lowermost brick 14 of the first outer wall portion 10a and the lowermost brick 14 of the second outer wall portion 10b are sandwiched inward, the inconvenience that the brick 14 is displaced inward is suppressed. it can. As a result, it becomes possible to form the brick wall module 10 in a separate site (offsite) away from the furnace body construction site, and to shorten the furnace body construction period of the coke oven.

(6) In the method for constructing a coke oven of the coke oven of the present embodiment, the lowermost bricks 14b and 14c of the brick wall module 10 have the widths of the first portions 14b1 and 14c1 constituting the outer wall portions (10a and 10b). The T-shaped planar shape is wider than the width of the second portions 14b2 and 14c2 constituting the inner wall portions (10e1, 10e2).
Therefore, according to the method for constructing the coke oven of the present embodiment, the lowermost brick 14 of the first outer wall portion 10a and the lowermost brick 14 of the second outer wall portion 10b are supported with each other in the Y direction. In this state, the interval between the two inner wall portions 10e adjacent to each other in the X direction can be secured.

  In addition, the conveyance frame 30 of this embodiment is compressed toward the inward from the both end sides (the third and fourth outer wall portions 10c and 10d side) of the lowest stage of the first and second outer wall portions 10a and 10b. Although it is not configured to load a force, it compresses inward from the both end sides (the third and fourth outer wall portions 10c, 10d side) of the lowermost stage of the first and second outer wall portions 10a, 10b. You may comprise so that force may be loaded.

  As described above, the method for constructing a coke oven for a coke oven according to the present invention has an effect of shortening the duration for constructing a coke oven, and when a part or the whole of the furnace body is updated or This is useful for building a furnace body when building a new building.

DESCRIPTION OF SYMBOLS 1 ... Furnace body, 2 ... Brick, 2a ... Vertical joint, 2b ... Horizontal joint, 3 ... Thermal storage chamber, 4 ... Corbel, 5 ... Combustion chamber, 5a ... Flue region, 6 ... Brick wall, 7 ... Carbonization chamber, 8 ... Top 10: Brick wall module, 10a: First outer wall portion, 10b ... Second outer wall portion, 10c ... Third outer wall portion, 10d ... Fourth outer wall portion, 10e ... Inner wall portion 13, 13a, 13b, 13c, 13d, 13e, 13f ... Brick (2nd to 8th steps)
13r, 13s, 13t ... Brick (2nd to 8th steps)
14, 14b, 14c, 14d, 14e, 14f ... brick (first stage)
14r, 14s, 14t ... Brick (first stage)
14b1, 14c1 ... first part, 14b2, 14c2 ... second part 15 ... vent hole, 16 ... fitting recess, 17 ... fitting protrusion, 18 ... spacer, 19 ... mortar, 25 ... brick 30 ... transport frame 31 ... Frame body, 31a ... Upper chord member, 31b ... Lower chord member, 31c1 ... First bundle member (vertical member), 31c2 ... Second bundle member, 31d ... Diagonal member, 31e1 ... First cross beam (horizontal beam) ), 31e2 ... second cross beam 33 ... gripping mechanism, 34 ... hydraulic cylinder, 35 ... connecting arm, 36 ... gripping arm, 37,38 ... gripping plate

Claims (6)

(A) In a separate place away from the furnace building site, a plurality of brick layers in which a plurality of bricks are arranged in a plane direction including the first and second directions orthogonal to each other are arranged in a third direction orthogonal to the plane direction. Forming a plurality of layered brick wall modules in advance;
(B) In the furnace construction site, a step of forming a brick wall by laminating the plurality of brick wall modules in a plurality of stages so that the third direction of each of the plurality of brick wall modules is matched. A method for constructing a coke oven furnace body. The brick wall module extends in the first direction and is spaced apart from each other in the second direction, and extends in the second direction and extends in the first direction. And the third and fourth outer wall portions connected to the first and second outer wall portions, respectively, and in the region surrounded by the first to fourth outer wall portions. A plurality of inner wall portions extending in two directions, connected to the first and second outer wall portions and arranged at predetermined intervals in the first direction, and And the second outer wall portion is formed in a planar shape longer than the third and fourth outer wall portions, and has an annular shape in which the outer periphery composed of the first to fourth outer wall portions is closed,
2. The coke oven according to claim 1, wherein the region surrounded by the first to fourth outer wall portions is a combustion chamber having a plurality of flue regions partitioned by the plurality of inner wall portions. Furnace construction method. In the step (b), in each of the plurality of brick wall modules, a mortar is interposed between a mating brick on which the brick wall module is installed and a lowermost brick of the brick wall module. An installation step of installing the brick wall module on the brick of
In the installation step, a spacer is provided between the mating brick and the lowermost brick of the brick wall module to ensure a separation distance between the mating brick and the lowermost brick of the brick wall module. The method for constructing a coke oven furnace body according to claim 1 or 2, wherein the coke oven furnace body is constructed.   The method of constructing a furnace body for a coke oven according to claim 3, wherein the spacer is formed in advance so as to protrude from the lower surface of the lowermost brick of the brick wall module. A transport step of transporting the plurality of brick wall modules individually from the separate ground to the furnace body construction site with a transport frame;
The brick wall module has a structure in which a lowermost brick of the first outer wall portion and a lowermost brick of the second outer wall portion are supported with each other in the second direction,
In the transporting step, the transport frame sandwiches the brick wall module by sandwiching the lowermost brick of the first outer wall portion and the lowermost brick of the second outer wall portion inward. The furnace body construction method for a coke oven according to claim 2, wherein gripping is performed.   The lowermost brick of the first outer wall part has a first part constituting the first outer wall part and a second part constituting the inner wall part, and the width of the first part is Formed in a T-shaped planar shape wider than the width of the second portion, the lowermost brick of the second outer wall portion constitutes the first portion and the inner wall portion constituting the second outer wall portion 6. The coke oven according to claim 5, wherein the coke oven has a T-shaped planar shape having a second portion that has a width wider than the width of the second portion. Furnace construction method.

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