JP6627290B2 - How to build a coke oven - Google Patents

Description

  The present invention relates to a method for constructing a coke oven.

  A coke oven is a kiln for producing coke. A carbonization chamber and a combustion chamber are alternately arranged at the upper part of the furnace body of the coke oven, and a heat storage chamber is provided at the lower part. Coke is generated by burning the combustion gas and combustion air preheated in the heat storage chamber in the combustion chamber, and carbonizing the coal charged in the carbonization chamber by the generated heat. Coke ovens are built by building a furnace body on a concrete foundation, but the construction takes a long time to build the furnace body with refractory bricks. On the other hand, it is necessary to protect the refractory bricks from getting wet during the construction of the furnace body and during the temperature rise, so a temporary shed covering the furnace body is constructed during the construction of the coke oven.

  Various technologies relating to the temporary shed of such a coke oven have been proposed. For example, in Patent Document 1, when constructing a coke oven using a coke oven temporary shed, a rail installed in the coke oven is used as a moving rail of the temporary shed, and the temporary shed is disassembled after the construction. A method of moving from a construction location without having to do so is described. In addition, in Patent Document 2, particularly when a coke oven is newly installed adjacent to an existing coke oven, a cantilever is protruded from above the newly installed coke oven and from below the upper roof, and from the cantilever, A coke oven temporary shed is described in which a side wall that can be folded and stored can be suspended and the side wall can be folded and stored when a guide car is repaired.

JP 2008-266533 A JP 2010-275451 A

  As described above, in the coke oven construction process, the removal of the temporary shed cannot be started until the refractory brick reaches a transformation point and reaches a temperature at which performance is not affected by rain. Further, until the removal of the temporary shed is completed, subsequent mechanical work and trial operation cannot be started. The existence of such a critical process makes it difficult to shorten the construction period. According to the techniques of Patent Documents 1 and 2, it is possible to quickly remove the temporary shed after construction or temporarily store the side wall of the temporary shed during construction. It is the same as before that the removal of the house becomes a critical process, and in this respect, it is not possible to shorten the construction period.

  Therefore, the present invention has been made in view of the above-described problem, and an object of the present invention is to partially start opening the side wall portion of the temporary shed without waiting for the temperature of the furnace body to rise. Accordingly, it is an object of the present invention to provide a new and improved method of constructing a coke oven which can shorten the construction period.

In order to solve the above problems, according to an aspect of the present invention, there is provided a method of constructing a coke oven including a step of covering a coke oven under construction on a foundation with a temporary shed having a side wall and a roof, The side wall portion includes a lower region on the foundation side and an upper region on the roof portion side. At least in the lower region, the side wall portion is constituted by a panel of a predetermined size, and the lower region is moved to the upper region by individually moving the panel. A method of constructing a coke oven is provided that opens earlier and before the refractory brick expansion is completed after exceeding the initial transformation point .

  In the above coke oven construction method, the lower region may be opened by moving the panel in a direction perpendicular to the surface of the side wall portion. At this time, the panel may have a structure that can be bent, and may be separated from its support and moved in a vertical direction by being bent. Alternatively, the support of the panel may have a structure that can be disassembled, and the panel may move away from the support and move in a vertical direction when the support is disassembled.

  In the above coke oven construction method, the lower region may be opened by moving the panel upward along the surface of the side wall. At this time, also in the upper region, the side wall portion is constituted by a panel of a predetermined size, the panel in the upper region and the panel in the lower region are supported by a common guide rail, and the panel in the upper region is moved upward to guide. After withdrawal from the rail, the panel in the lower region may be moved to the upper region.

  As described above, according to the present invention, it is possible to shorten the construction period by partially starting the opening of the side wall portion of the temporary shed without waiting for the temperature of the furnace body to rise.

It is a figure showing the whole structure of the temporary shed of the coke oven concerning one embodiment of the present invention. FIG. 1B is a diagram showing a state where the lower region of the side wall is opened before the upper region in the temporary shed shown in FIG. 1A. It is sectional drawing of the temporary shed shown in FIG. 1A. It is a figure showing the whole structure of the temporary shed of the coke oven concerning other embodiments of the present invention. It is sectional drawing of the temporary shed shown in FIG. 3A. It is a figure showing the 1st example of the panel which constitutes the lower part of a side wall part in an embodiment of the present invention. It is a figure which shows the modification of the example shown in FIG. 4A. It is a figure showing the 2nd example of the panel which constitutes the lower part of a side wall part in an embodiment of the present invention. It is a figure showing the 3rd example of the panel which constitutes the lower part of a side wall part in an embodiment of the present invention. It is a figure showing the 3rd example of the panel which constitutes the lower part of a side wall part in an embodiment of the present invention. It is a figure showing the 4th example of a panel which constitutes a lower part of a side wall part in an embodiment of the present invention. It is a figure showing the 4th example of a panel which constitutes a lower part of a side wall part in an embodiment of the present invention. It is a figure showing the 5th example of a panel which constitutes a lower region of a side wall part in an embodiment of the present invention.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this specification and the drawings, components having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1A is a diagram showing an overall configuration of a temporary shed of a coke oven according to one embodiment of the present invention. Referring to FIG. 1A, a temporary shed 1 is built on a coke oven substructure 11. The end decks 14 and 15 are provided on both ends of the coke oven on the basic structure 11, respectively. The end decks 14 and 15 are used, for example, for maintenance of a machine such as a vehicle loaded with coal during operation. The temporary shed 1 covers a coke oven under construction between the end decks 14 and 15. In the illustrated example, the entire coke oven is under construction, but it is also possible to modify only a part of the coke oven. In such a case, the temporary shed 1 may be constructed only for the portion to be repaired.

  The temporary shed 1 includes a side wall 2 that covers the side of the coke oven and a roof 3 that covers above the coke oven. The side wall portion 2 is divided into an upper side wall 2a covering an upper region on the roof portion 3 side and a lower side wall 2b covering a lower region on the foundation structure 11 side. At least the lower side wall 2b is formed of a panel of a predetermined size. In the illustrated example, the height of the panel is equal to the height of the lower side wall 2b, and the width is equal to the interval between the pillars 4. As described later, each panel is supported by a support attached to the column 4. With such a structure, in the temporary shed 1, the lower region of the side wall 2 can be easily opened by individually moving the panels constituting the lower side wall 2b.

  FIG. 1B is a diagram showing a state where the lower part of the side wall part is opened before the upper part in the temporary shed 1 shown in FIG. 1A. In the state shown in FIG. 1B, since the lower side wall 2 b has been removed, the back stay 13 inside the temporary shed 1 can be seen from between the pillars 4. As described above, in the construction process of the coke oven, the temporary shed 1 needs to be constructed even during the heating of the furnace body in order to protect the refractory bricks from being wet. However, strictly speaking, it is the firebrick at the furnace top that needs to be protected from water wetting after about 10 days after the temperature rise, and it is not necessary to protect the furnace side from water wetting. Therefore, as shown in FIG. 1B, even when the lower side wall 2b is removed while leaving the roof portion 3 and the upper side wall 2a, the temperature rise of the furnace body can proceed without any problem.

  Since there is a space between the roof 3 and the top of the coke oven for work in the temporary shed 1, if the entire side wall 2 is removed during the heating of the furnace body, In addition, there is a possibility that the refractory bricks at the top of the furnace may be wet by the blown rain water. Therefore, not only the roof portion 3 but also the upper side wall 2a needs to be left at a temperature at which the refractory brick reaches the transformation point and the performance is not affected by rain. The height of the portion to be left as the upper side wall 2a can be appropriately determined according to, for example, the interval between the roof 3 and the furnace top, and the assumed rainwater blowing angle. The other portions can be removed earlier as the lower side wall 2b at an early stage even during the heating of the furnace body.

  Here, the timing of removing each part of the temporary shed 1 as described above will be further described. The coefficient of thermal expansion of the refractory brick increases after the furnace body temperature rises, but the rate of change in thermal expansion decreases significantly about 10 days after the temperature rise, and the rate of change in thermal expansion further increases when the temperature rises and reaches a certain point. It decreases and then becomes almost constant. Here, the first point at which the rate of change in thermal expansion of the refractory brick significantly decreases is defined as a first transformation point, and subsequently, a second transformation point.

  First, until the first transformation point, which is about 10 days after the start of heating, the rate of change in thermal expansion of the refractory brick is very large, so that both the furnace side and the furnace top protect the refractory brick from getting wet, It is necessary to avoid disturbance. Therefore, at this stage, not only the upper side wall 2a but also the lower side wall 2b is installed.

  Next, when the furnace body temperature exceeds the first transformation point, the rate of change in thermal expansion of the refractory brick is greatly reduced, and furthermore, on the furnace side, even when wet, rainwater flows down the wall without accumulating on the refractory brick surface. Therefore, there is no problem even if the refractory brick is wet by rainwater. On the other hand, since the surface temperature is low and the rainwater does not evaporate until the refractory brick reaches the second transformation point and expansion is almost completed, the rainwater may collect at the furnace top and the joint mortar may flow, The performance of the firebrick at the furnace top may be affected. Therefore, at this stage, although the lower side wall 2b can be removed, the upper side wall 2a needs to be left in order to prevent rainwater from being blown into the furnace top.

  Further, when the furnace body temperature reaches the second transformation point of the refractory brick, the expansion of the refractory brick is almost completed, and the surface temperature of the refractory brick becomes high enough to evaporate rainwater. After that, the performance of the refractory brick is not affected by the rain, and the rainwater falling on the furnace top evaporates immediately and does not accumulate. Therefore, at this stage, it is no longer necessary to prevent the refractory bricks from getting wet, and the entire temporary shed 1 including the upper side wall 2a and the roof 3 can be removed.

  The furnace body temperature also rises after exceeding the second transformation point of the refractory brick, and reaches the operable temperature. The removal of the upper side wall 2a and the roof 3 is performed in parallel with the temperature rise of the furnace body from the second transformation point to the operable temperature, for example. However, during this period, that is, the period after the furnace body temperature exceeds the second transformation point of the refractory brick, not only the removal of the temporary shed 1 but also the mechanical work and the start-up work are performed. Therefore, not all the steps are completed during the heating of the furnace body, and there is a possibility that the construction period may be extended until after the heating of the furnace body is completed.

  On the other hand, during the period from about 10 days after the heating of the furnace body until the refractory bricks reach the second transformation point, there is no work around the temporary shed and there is no leisure time. It is beneficial to carry out the shed removal work in advance. That is, by removing the lower side wall 2b in advance before the furnace body temperature reaches the second transformation point of the refractory brick, removal of the lower side wall 2b from the process after the furnace body temperature exceeds the second transformation point is achieved. It is eliminated and the construction period is shortened accordingly.

  Also, by assembling the panels constituting the lower side wall 2b in advance, an external scaffold is constructed using a heavy machine arranged outside the temporary shed 1 or a crane installed inside the temporary shed 1. The installation and removal of the lower side wall 2b can be performed without performing. If the upper side wall 2a is also formed of a similar panel, installation and removal can be performed without constructing an external scaffolding for the entire side wall portion 2, thereby leading to shortening of the construction period by simplifying the process. In addition, since there is no need to construct an external scaffold, external work (for example, when only a part of the coke oven is renovated, a fire extinguisher or extruder used in an adjacent non-renovated part is moved) The installation and removal of the side wall portion 2 can be advanced without affecting.

  For example, when the lower side wall 2b is removed using a hoist crane installed inside the temporary shed 1 as described later, the removal is performed using a heavy machine arranged outside the temporary shed 1. It may take longer than doing it. However, as described above, if the removal of the lower side wall 2b can be performed in parallel with the temperature rise of the furnace body, it is not always necessary to select the method of the shortest time, and the work outside the temporary shed 1 as described above is performed. Considering the effects of the above and the cost reduction due to the diversion of the existing hoist crane, a rational construction method can be selected.

  FIG. 2 is a sectional view of the temporary shed shown in FIG. 1A. Referring to FIG. 2, the temporary shed 1 includes a diagonal beam 5, an upper frame 6 in addition to the above-described side wall 2 (upper side wall 2 a and lower side wall 2 b), roof 3, and column 4. , And a hoist rail 7. The temporary shed 1 in the illustrated example has a structure in which the roof portion 3 is mounted on the upper frame 6, so the roof portion 3 may be temporarily removed during construction, or a rail or the like may be provided between the temporary frame 1 and the upper frame 6. And the roof 3 can be moved in the direction of the coke oven length of the coke oven. In addition, the upper frame 6 is connected to the back stay 13 at the back stay connecting portion 6b, and the load of the roof 3 and the upper frame 6 is borne by the back stay 13, so that the column portion 4 can be made slimmer.

  The column 4 is connected to the diagonal beam 5 and indirectly bears a part of the load of the roof 3 and the upper frame 6. On the diagonal beam 5, a roof surface 5r for covering a side end region of the temporary shed 1 deviating from the roof portion 3 can be formed. Further, a hoist rail 7 is installed on the diagonal beam 5 outside the back stay 13. The hoist rail 7 extends in the direction of the length of the coke oven, and allows a hoist crane to travel. By providing the hoist rail 7, a hoist crane running outside the back stay 13 can be used for transporting firebricks and the like in the temporary shed 1 during construction of the furnace body. As described above, the hoist crane can also be used to remove the lower side wall 2b formed by the panel.

  Further, the column portion 4 includes a column 4p that is a structural member that bears a load, and a guide rail 4g coupled to the column 4p. In the illustrated example, both the upper side wall 2a and the lower side wall 2b are formed by panels, and both sides of each panel are fitted to the guide rails 4g to support the panel. In the illustrated example, the guide rail 4g is provided outside the temporary shed 1 as viewed from the pillar 4p, but the guide rail 4g may be provided inside. As will be described later, for example, the panel constituting the lower side wall 2b has a structure that can be bent, the portion that supports the lower side wall 2b has a guide rail 4g that can be disassembled, or the lower side wall 2b and the upper side wall 2a are separated. By installing the guide rail 4g, the lower side wall 2b can be removed before the upper side wall 2a.

  FIG. 3A is a diagram illustrating an entire configuration of a temporary shed of a coke oven according to another embodiment of the present invention. Referring to FIG. 3A, the temporary shed 1a includes a side wall 2, a roof 3f, and a pillar 4a. The difference from the temporary shed 1 described above with reference to FIGS. 1A and 1B is that, in the temporary shed 1a, the roof portion 3f is a planched roof surface laid on the upper surface of a beam installed inside. is there. In the temporary shed 1a, such a roof 3f is supported by a portal-type ramen structure formed by the pillars 4a and the beams. An overhead crane is installed on the beam to transport refractory bricks and the like in the temporary shed 1a during the construction of the furnace body. Due to such a structure, the column portion 4a has higher rigidity than the column portion 4 in the temporary shed 1.

  Even in such a temporary shed 1a, the side wall portion 2 is divided into the upper side wall 2a and the lower side wall 2b, and at least the lower side wall 2b is formed of a panel of a predetermined size, so that the above-mentioned FIGS. 1A and 1B are referred to. The same steps as in the example described above can be performed. That is, after about 10 days after the temperature rise of the furnace body, by removing the lower side wall 2b first without leaving the roof 3f and the upper side wall 2a without waiting for the refractory brick to reach the second transformation point, The removal of the lower side wall 2b can be omitted from the process after the furnace body temperature reaches the second transformation point of the refractory brick, and as a result, the construction period is shortened.

  FIG. 3B is a sectional view of the temporary shed shown in FIG. 3A. Referring to FIG. 3B, the temporary shed 1a includes a beam 2 in addition to the side wall 2 (upper side wall 2a and lower side wall 2b), the roof 3, and the column 4a (post 4ap and guide rail 4ag) described above. 8 and an overhead crane 9. In the temporary shed 1a in the illustrated example, the lower side wall 2b can be installed and removed using the overhead crane 9 installed on the beam 8, instead of the hoist crane of the temporary shed 1 described above. It is. In the illustrated example, the guide rails 4ag are provided outside the temporary shed 1 as viewed from the pillars 4ap, but the guide rails 4ag may be provided inside.

  Hereinafter, some examples of the panel constituting the lower region (lower side wall) of the side wall portion in the embodiment of the present invention will be described more specifically.

(First example)
FIG. 4A is a diagram showing a first example of a panel constituting a lower region of a side wall portion in the embodiment of the present invention. In the example shown in FIG. 4A, a panel constituting a lower side wall 2b corresponding to a lower region of the side wall portion 2 is divided into two parts from a substantially center right and left, and a hinge 2b_h is provided therebetween. That is, in this example, the panel has a bendable structure. As illustrated, both ends of the panel are separated from the guide rail 4g by the panel being bent into a mountain shape at the hinge 2b_h. As a result, the panel forming the lower side wall 2b moves in a direction perpendicular to the surface of the lower side wall 2b and is removed. Here, the direction perpendicular to the surface of the lower side wall 2b may be paraphrased as the furnace length direction of the coke oven or the width direction of the temporary shed 1 (when the furnace group length direction is the longitudinal direction).

  For example, with the above structure, if the panel is moved toward the inside of the temporary shed 1 (that is, the folded panel is arranged so as to form a mountain shape facing the inside of the temporary shed 1). For example, the removed panel can be transported by using a transport means provided inside the temporary shed 1, specifically, a hoist crane running on the hoist rail 7. Conversely, if the panel is moved toward the outside of the temporary shed 1 (that is, if the folded panels are arranged so as to form a mountain shape facing the outside of the temporary shed 1), the temporary shed The removed panel can be transported by using a transporting means, specifically a heavy machine or the like, disposed outside the panel. During installation of the lower side wall 2b, a fixing hardware or the like may be attached to the hinge 2b_h so that the panel is not bent.

  In the first example described above, the panel forming the lower side wall 2b is removed by moving the panel in a direction perpendicular to the surface of the lower side wall 2b. Therefore, the panel of the lower side wall 2b moved for removal does not interfere with the upper side wall 2a. Therefore, in this example, the method of installing the upper side wall 2a can be freely selected. For example, in order to quickly remove the upper side wall 2a after the heating of the furnace body is completed, the upper side wall 2a is also formed of a panel in the same manner as the lower side wall 2b, so that the panel can be bent. Good. Alternatively, although the upper side wall 2a is formed of a panel similarly to the lower side wall 2b, the panel may not be bendable. Further, the upper side wall 2a does not necessarily have to be formed by a panel.

  As a modified example of the first example, as shown in FIG. 4B, the panel may be divided into two parts from the center to the left and right, and a vertical trunk edge 2b_v may be provided therebetween. When the lower side wall 2b is removed, a gap is formed between the panels by first removing the vertical trunk edge 2b_v, and the gap can be used to shift the panel so that both ends can be separated from the guide rail 4g. Also in this case, the panel moves in a direction perpendicular to the plane of the lower side wall 2b and is removed.

(Second example)
FIG. 5 is a diagram showing a second example of the panel constituting the lower region of the side wall in the embodiment of the present invention. In the second example shown in FIG. 5, a guide rail 4g supporting a panel constituting a lower side wall 2b corresponding to a lower region of the side wall portion 2 is constituted by a large angle 4ga and a small angle 4gb, and a large angle 4ga and a small angle 4ga. The angle 4gb is fastened by bolts 4gc. By removing the bolt 4gc, the small angle 4gb and the large angle 4ga are disassembled, the cross-sectional shape of the guide rail 4g is opened, and the panel can be detached from the guide rail 4g.

  Also in the second example, the panel constituting the lower side wall 2b is moved in a direction perpendicular to the surface of the lower side wall 2b and removed. Therefore, similarly to the first example, the method of installing the upper side wall 2a can be freely selected. When the panel is moved toward the inside of the temporary shed 1, the transportation means such as a hoist crane provided inside the temporary shed 1 moves the panel toward the outside of the temporary shed 1. The transport means such as heavy equipment disposed outside the temporary shed 1 can be used. The guide rail 4g constituted by the large angle 4ga and the small angle 4gb may be provided inside the temporary shed 1 as seen from the pillar 4p, or may be provided outside the guide rail 4p, similarly to the above examples.

  As a comparison between the first example and the second example, in the first example, the structure of the guide rail 4g is simple, but the panel constituting the lower side wall 2b can be bent. It is necessary to provide a structure such as the hinge 2b_h. On the other hand, in the second example, the shape of the panel forming the lower side wall 2b is simple, but the guide rail 4g can be disassembled like a large angle 4ga, a small angle 4gb, and a bolt 4gc. It is necessary to make the structure complicated. Further, since the bolts 4gc need to be provided at a plurality of positions in the height direction, the amount of work when removing the lower side wall 2b increases. Therefore, in the embodiment of the present invention, the first example and the second example can be appropriately selected in consideration of the above advantages and disadvantages.

(Third example)
6A and 6B are views showing a third example of the panel constituting the lower region of the side wall in the embodiment of the present invention. FIG. 6B is a sectional view taken along the line II of FIG. 6A. As shown in FIGS. 6A and 6B, in the present example, unlike the first and second examples described above, the panel forming the lower side wall 2 b corresponding to the lower region of the side wall part 2 is It is removed by moving up along the plane. In this case, since the upper side wall 2a is located above the lower side wall 2b, a structure that does not interfere with the upper side wall 2a is required. In this example, the guide rail 4g includes a guide rail 4g_out for supporting the panel on the upper side wall 2a and a guide rail 4g_in for supporting the panel on the lower side wall 2b. That is, in this example, the guide rail 4g is installed separately from the lower side wall 2b and the upper side wall 2a. As shown in the drawing, the guide rail 4g_in is arranged at a position closest to the inside of the temporary shed 1, the guide rail 4g_out is arranged outside the same, and the pillar 4p is arranged outside the guide rail 4g_out. With such a configuration, in this example, when the panel constituting the lower side wall 2b is moved for removal, the panel is guided to a position closer to the inside of the temporary shed 1 than the upper side wall 2a, and the lower side wall 2b Interference between the panel and the upper side wall 2a can be avoided.

  In the example shown in the figure, the guide rail 4g is connected to the pillar 4p so that the panel of the lower side wall 2b that has passed through a position closer to the inside of the temporary building 1 than the upper side wall 2a can be pulled into the temporary building 1 as it is. Installed inside. In this case, a transport means such as a hoist crane provided inside the temporary shed 1 can be used for pulling out the panel of the lower side wall 2b supported by the guide rail 4g_in and transporting the panel after the pulling out. As a modification of this example, the guide rail 4g_in may support the panel on the upper side wall 2a, and the guide rail 4g_out may support the panel on the lower side wall 2b. In this case, the panel on the lower side wall 2b may be pulled out of the temporary shed 1. In this case, a transport unit such as a heavy machine disposed outside the temporary shed 1 can be used for pulling out the panel of the lower side wall 2b and transporting the panel after the panel is pulled out.

  In the third example described above, the panel forming the lower side wall 2b is removed by moving the panel upward along the surface of the lower side wall 2b. Therefore, although a structure for avoiding interference with the upper side wall 2a is required as described above, unlike the above two examples, a structure for removing work is provided near (inside or outside) the side wall portion 2. There is no need to secure space. Therefore, in this example, work for constructing a coke oven inside the temporary shed 1 and work outside the temporary shed 1 (for example, when only a part of the coke oven is renovated, The removal of the lower side wall 2b can be advanced without affecting the fire extinguishing truck or the movement of the extruder used in the refurbished portion. In this example, since it is not necessary to move the upper side wall 2a when removing the lower side wall 2b, the upper side wall 2a does not necessarily need to be constituted by a panel.

(Fourth example)
FIGS. 7A and 7B are views showing a fourth example of the panel constituting the lower region of the side wall in the embodiment of the present invention. FIG. 7B is a sectional view taken along the line II-II of FIG. 7A. The fourth example shown in FIGS. 7A and 7B is an example in which the positional relationship between the guide rail 4g and the column 4p is reversed in the third example described above with reference to FIGS. 6A and 6B. In this example, the guide rail 4g_out supports the panel on the lower side wall 2b, and the guide rail 4g_in supports the panel on the upper side wall 2a. In this case, for pulling out the panel of the lower side wall 2b supported by the guide rail 4g_out and for transporting after the removal, a transporting device such as a heavy machine disposed outside the temporary shed 1 can be used. As a modification of this example, the guide rail 4g_out may support the panel on the upper side wall 2a, and the guide rail 4g_in may support the panel on the lower side wall 2b. In this case, the panel on the lower side wall 2b may be pulled inside the temporary shed 1. In this case, for the removal of the panel on the lower side wall 2b and the transportation after the removal, a transportation means such as a hoist crane provided inside the temporary shed 1 can be used as in the third example.

  In the fourth example described above, as in the third example, a structure for avoiding interference between the lower side wall 2b and the upper side wall 2a that are pulled upward is required, but the vicinity of the side wall part 2 ( (Inside or outside) it is not necessary to reserve space for removal work. Therefore, in this example, the removal of the lower side wall 2b can be advanced without affecting the work for constructing the coke oven inside the temporary shed 1 and the work outside the temporary shed 1. Also in this example, since it is not necessary to move the upper side wall 2a when removing the lower side wall 2b, the upper side wall 2a does not necessarily need to be constituted by a panel.

(Fifth example)
FIG. 8 is a diagram showing a fifth example of the panel constituting the lower region of the side wall in the embodiment of the present invention. In the fifth example shown in FIG. 8 as well, the panel forming the lower side wall 2b moves upward along the surface of the side wall portion 2 as in the third and fourth examples described above. However, in this example, the upper side wall 2a and the lower side wall 2b are supported by the common guide rail 4g. Further, in this example, both the upper side wall 2a and the lower side wall 2b are formed by panels. Accordingly, in this example, after the upper side wall 2a is moved upward and pulled out from the guide rail 4g, the lower side wall 2b is moved to the upper region (the position where the upper side wall 2a originally existed), whereby the side wall 2 The lower area can be released. Note that, in the illustrated example, the lower side wall 2b is further divided into an upper panel 2b_top and a lower panel 2b_btm. Hereinafter, the procedure for opening the lower region in this example will be further described with reference to FIG.

  When opening the lower region, first, as shown in FIG. 8A, the panel constituting the upper side wall 2a is moved upward along the guide rail 4g and pulled out. Next, as shown in (b), the upper panel 2b_top constituting the lower side wall 2b is similarly moved upward along the guide rail 4g and pulled out. Finally, as shown in (c), the lower panel 2b_btm constituting the lower side wall 2b is moved upward along the guide rail 4g. However, the lower panel 2b_btm is not pulled out from the guide rail 4g, but is pulled up to the upper end of the guide rail 4g and fixed. As a result, while the lower region of the side wall portion 2 is opened, the panel (the lower panel 2b_btm of the original lower side wall 2b that has moved) remains in the upper region.

  Also in the fifth example described above, the panel constituting the lower side wall 2b is removed by moving the panel upward along the surface of the lower side wall 2b. Therefore, as in the third and fourth examples, it is not necessary to secure a space near the side wall 2 for the removal operation. Further, in this example, since the common guide rail 4g can be installed in the upper side wall 2a and the lower side wall 2b, the structure of the column portion 4 is simpler than in the third example. However, in this example, since the panel is pulled upward from the guide rail 4g extending to the upper end of the pillar portion 4, for example, the roof surface 5r of the temporary shed 1 shown in the example of FIG. 2 or the temporary shed shown in FIG. In order to prevent interference with the roof 3f of 1a, it is necessary to adjust the arrangement of these roofs or the roof or to make the roof or the roof temporarily removable.

  As described above, the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to such examples. It is apparent that those skilled in the art to which the present invention pertains can conceive various changes or modifications within the scope of the technical idea described in the appended claims. It is understood that these also belong to the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1, 1a Temporary shed 2 Side wall part 2a Upper side wall 2b Lower side wall 3, 3f Roof part 4 pillar part 4p pillar 4g Guide rail 5 Sloping beam 6 Upper frame 7 Hoist rail 8 Beam 9 Ceiling crane 11 Foundation structure 13 Back stay

Claims (5)

A method of constructing a coke oven, comprising covering a coke oven under construction on a foundation with a temporary shed having a side wall and a roof.
The side wall portion includes a lower region on the foundation side and an upper region on the roof portion side,
At least in the lower region, the side wall portion is constituted by a panel of a predetermined size,
A method of constructing a coke oven wherein the lower region is opened prior to the upper region by moving the panels individually and before the refractory brick expansion is completed after exceeding the initial transformation point .   The method of claim 1, wherein the lower region is opened by moving the panel in a direction perpendicular to a surface of the side wall.   The method for constructing a coke oven according to claim 2, wherein the panel has a bendable structure, and is detached from its support and moved in the vertical direction by being bent. The panel support has a disassemblable structure,
The method of claim 2, wherein the panel detaches from the support and moves in the vertical direction when the support is disassembled. In the upper region also, the side wall portion is constituted by a panel of a predetermined size,
The panel in the upper region and the panel in the lower region are supported by a common guide rail,
The construction of a coke oven according to claim 1, wherein the lower area is opened by moving the panel in the lower area to the upper area after moving the panel in the upper area upward and withdrawing the panel from the guide rail. Method.

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