JP2019167503A - Method for construction of coke oven and temporary shed for construction of coke oven - Google Patents

Abstract

To efficiently conduct piling up work of bricks appropriately and thereby to shorten a construction period.SOLUTION: The present invention constructs a coke oven in the building comprising a temporary shed 10 which is configured by arranging portal frames 16 which extend over PS and CS of a coke oven under construction along the length of the oven group at a predetermined pitch along the length of the oven group. Between two mutually adjacent portal frames 16, bricks 1 are carried to an appropriate position between the portal frames 16 in the oven by using: a traveling rail 20 which is disposed between guide beams 19 arranged on a ceiling material 15 and is movable over from PS to CS in the depth direction of the oven; and a crane unit 21 which is mounted on the traveling rail 20 and is free to travel along the length of the oven group.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a coke oven construction method and a temporary roof for coke oven construction for performing a brickwork operation when constructing a coke oven.

  When the concrete foundation is completed in the coke oven main body brickwork for renovation and construction of the coke oven, the brickwork is performed on the concrete foundation. This brickwork is the construction of the coke oven main body and is the main work.

  For example, FIG. 10 shows an example of a conventional coke oven construction method. When brickwork is performed on the coke oven 100 to be constructed, a shed 201 is installed on the PS (Pusher Side) in addition to the shed 200 to form a brick warehouse. A large amount of bricks 1 of various shapes are stocked in the lower house, the bricks 1 having a shape corresponding to the construction site are selected, and the building furnace performs brickwork by hand.

Suspension cranes 202 that run in the length direction of the furnace group are installed on both sides of the upper part of the shed 200, and the suspension cranes 202 are mainly used for hardware installation after completion of the main body brickwork.
In addition, a PS suspension crane 202 and a roller conveyor 12 (see also FIG. 11) are usually used together to carry the brick 1 from the lower house 201 to the upper house 200 during brick building. It is done in a way that raises the material. 10 and 11, the arrow X indicates the depth direction of the coke oven 100 to be constructed, and the arrow Y direction indicates the furnace group length direction.

  However, in the conventional coke oven construction method, the size of the brick 1 is basically limited to that which can be handled manually. In addition, in order to carry a large amount of bricks 1 to the place where they are piled up and pile up accurately, the brick building work not only takes a very long time, but also requires a large number of furnace builders.

  The present invention has been made in view of such circumstances, and an object of the present invention is to perform an efficient and appropriate brick stacking operation to shorten a construction period.

  The coke oven construction method of the present invention is a building comprising a temporary roof constructed by arranging a portal frame extending in the depth direction of the furnace over the PS and CS of the coke oven to be constructed at a predetermined pitch in the length direction of the furnace group. A construction method for constructing the coke oven indoors, which is bridged between the guide beams arranged on the ceiling material between the adjacent portal frames and is movable from PS to CS in the furnace depth direction. The coke oven is constructed by transporting bricks to an appropriate position in the furnace between the portal frames using a rail and a crane unit mounted on the traveling rail and capable of traveling in the furnace group length direction. It is characterized by that.

  According to the present invention, it can be used in combination with the conventional method of supplying bricks stocked in the lower house from PS, and bricks can be handled even in large blocks, which can greatly shorten the construction period of building a coke oven. it can. In addition, for the small bricks, it is possible to adopt a construction method such as supplying from PS after sorting in the lower house by the conventional construction method.

It is a perspective view which shows the example of whole structure of the temporary roof for coke oven construction in embodiment of this invention. It is a fracture perspective view showing an example of structure of a coke oven concerning an embodiment of the present invention. It is a figure which shows the structural example around the coke oven which concerns on embodiment of this invention. It is a front view which shows the whole structure of the temporary roof periphery used for the coke oven construction in embodiment of this invention. It is a top view of the temporary roof for coke oven construction in the embodiment of the present invention. It is a perspective view of the temporary roof for coke oven construction in the embodiment of the present invention. It is a fragmentary top view of a roof main body about arrangement | positioning relationships, such as a gate-shaped frame which concerns on embodiment of this invention. It is a front view which shows the stage periphery incidental to the temporary roof for coke oven construction concerning embodiment of this invention. It is a top view which shows the circumference of a stage incidental to the temporary roof for coke oven construction in embodiment of this invention. It is a figure which shows the example of the conventional coke oven construction method. It is a figure which shows the mode of the brickwork work in the conventional coke oven construction method.

Hereinafter, preferred embodiments of a coke oven construction method and a coke oven construction temporary roof according to the present invention will be described with reference to the drawings.
FIG. 1 shows a schematic configuration example of a temporary roof 10 for building a coke oven used in a coke oven construction method according to an embodiment of the present invention. In the temporary roof 10, bricks for forming the coke oven 100 are carried into a temporary building so as to cover the entire coke oven 100 to be constructed, and the bricks are stacked to construct a coke oven.

  First, the coke oven 100 will be described. FIG. 2 is a cutaway perspective view showing a structural example of the coke oven 100. FIG. 3 is a cross-sectional view showing an example around the coke oven 100. As shown in FIG. 2, the coke oven 100 has a charcoal chamber 102 and combustion chambers 103 alternately arranged in the upper part of the heat storage chamber 101 (in the direction of arrow Y in FIG. 2; the length of the furnace group). The carbonization chamber 102 is a chamber for making coke by steaming coal. The combustion chamber 103 is a chamber for burning fuel gas, and is constructed from bricks. The coke oven 100 is basically made of brick, and is configured by stacking many bricks. Each carbonization chamber 102 has a depth of about a few dozen meters (FIG. 2, arrow X direction), and blended and pulverized coal which is a coke raw material is input.

  As shown in FIG. 3, back stays 104 that are reinforcing structures (supports) are erected at substantially the same height as the combustion chamber 103 at both ends in the depth direction X of the combustion chamber 103. An extruder 105 is provided on the PS (Pusher Side) of the furnace group, and a guide wheel 106 is provided on the CS (Coke Side). Further, the PS and CS of the furnace group each have a platform 107 along the furnace group length direction Y. The coke oven 100 is constructed on a concrete foundation 100A.

  The CS of the coke oven 100 is further provided with a rail 109 of a fire extinguisher and a train 108, a guide rail 110, and dust collection ducts 111 in the length direction of the furnace group. Note that the guide vehicle rail 110 includes a third rail 110A, all of which function as a guide vehicle rail. The dust collection ducts 111 have a structure that is held at a high position by beams 112, struts, and the like that are passed across the rail 109 of the train 108. In this way, a large number of facilities or devices attached to the coke oven 100 are installed in the vicinity of the range in which the CS guide wheel 106 travels.

Next, FIG. 4 is a front view showing the entire configuration around the temporary roof 10 used for the construction of the coke oven, FIG. 5 is a plan view thereof, and FIG. 6 is a perspective view thereof. The coke oven 100 is refurbished due to changes over time or service life, or is reconstructed after its dismantling, and in the coke oven construction method of the present invention, in the coke oven main body brick work for renovation and construction of the coke oven 100, The shed 10 is used.
In the basic structure of the temporary roof 10, it is configured to have a gate shape that covers the coke oven 100 by joining frame materials, and extends from the outside to the inside of the roof main body 11, and the roof main body 11 that extends long in the furnace group length direction Y. A conveyor 12 that carries the bricks 1 to be stacked into the roof main body 11 and a crane device 13 that is suspended so as to be able to run on the ceiling of the roof main body 11 and that transfers the bricks on the conveyor 12 to a predetermined position. And comprising.

  It should be noted that the lower house 201 installed in the PS can be used together, and bricks 1 having various shapes are stocked in the lower house 201. The brick 1 stocked in the lower house 201 can be placed on the conveyor 12 and carried into the upper body 11.

  The shed main body 11 includes a plurality of portal frames 16 formed by columns 14 standing upright on the PS and CS so as to sandwich the coke oven 100, and ceiling members 15 connecting the upper ends of the columns 14, respectively. These portal frames 16 are arranged in the furnace group length direction Y at predetermined pitch intervals, and are connected to each other by a frame 17 extending in the furnace group length direction Y. The arrangement interval of the portal frame 16 is set to 4-5 spans of the combustion chamber 103, and in this example, it is arranged at a pitch interval P corresponding to the span of 4 combustion chambers 103 as shown in FIG. To do. In FIG. 7, for example, in the case of the combustion chambers 103, the bricks 1 are stacked on both sides of the furnace chamber length direction Y of each combustion chamber 103 in order to form it. The brick 1 may be a single unit, or may be configured in units of predetermined large and small blocks.

  As shown in FIG. 5, a plurality of scaffolds 18 for an operator to work using a space in which the bricks 1 are not stacked are horizontally disposed at a predetermined height position in the depth direction X corresponding to the conveyor 12. . Each scaffold 18 is supported so that the height can be adjusted, and the height can be adjusted according to the stacked height of the brick 1. The conveyor 12 is laid on, for example, every other scaffold 18, and the brick 1 placed on the conveyor 12 is conveyed in the depth direction X.

The crane device 13 is run across a guide beam 19 (FIG. 4) disposed on the lower side of the ceiling material 15 of the adjacent portal frame 16 as shown in FIG. 5 and can travel in the depth direction X. 20 and a crane unit 21 mounted on the traveling rail 20 and traveling in the furnace group length direction Y as shown in FIG. A so-called suspension crane unit is suitable as the crane unit 21, and a wire 22 used for stacking the bricks 1 is suspended.
In this case, the number of crane units 21 can be increased or decreased as necessary, and the crane units 21 are arranged between at least two portal frames 16.

  Here, in the case of CS, for example, as shown in FIG. 8, the stage 23 is located on the rail 109 of the fire engine and the train 108 along the furnace group length direction Y as shown in FIG. The conveyor 12 extends to the stage 23. On the stage 23, the forklift 25 for conveyance of the brick 1 can run, and operations such as loading the brick 1 into the conveyor 12 are performed. If the stage 23 is sufficiently wide, the loading truck 24 can also travel and can approach the forklift 25, so that the brick 1 can be loaded more efficiently (FIGS. 8 and 9).

  The temporary roof 10 is temporarily installed on the site where the coke oven 100 is constructed so as to cover the entire coke oven 100. When the temporary roof 10 is assembled, the columnar frame 16 or the frame 17 composed of the columns 14 and the ceiling material 15 constituting the roof main body 11 is installed at a predetermined position using a crane or the like. The temporary roof 10 is assembled by appropriately joining. If necessary, peripheral equipment and the like of the coke oven 100 are removed as appropriate, and auxiliary equipment of the stage 23 is assembled. In addition, the roof part and side surface of the temporary roof 10 are entirely covered with a panel material or a sheet metal, and the inside is protected from wind and rain.

  In the coke oven construction method of the present invention, the brick 1 is carried into the upper body 11 of the temporary roof 10 that is temporarily installed so as to cover the coke oven 100 to be constructed, and the brick 1 is placed in the furnace between the gate frames 16. The coke oven 100 is constructed by transporting it to an appropriate position. In this case, the brick 1 stocked in the lower house 201 can be supplied from the PS using the conveyor 12 at the initial stage of the furnace building, and in this case, the brick stacking work can be performed without using the crane unit 21. it can. In addition, although the crane unit 21 may not be installed in the initial stage of the furnace building, the crane unit 21 can be used.

  As the brickwork progresses, the height of the scaffold 18 is adjusted, that is, the height is gradually increased according to the stacked height of the brick 1. It is preferable to use a crane unit 21 that is mounted on the traveling rail 20 and travels in the furnace group length direction Y at least after the initial stage of the furnace construction. The traveling rail 20 travels along the guide beam 19 or the traveling rail 20 , The brick 1 lifted by the crane unit 21 can be accurately delivered to the worker in the scaffold 18.

  In the coke oven construction method of the present invention, the brick 1 can be supplied from both the PS and CS sides, or by selectively selecting the PS and CS sides, so that the building operation can be performed efficiently. That is, in particular, the brick 1 can be supplied not only from the PS but also from the CS. At this time, the stage 23 installed in the CS can be provided with an entrance for the truck 24 with a slope. The brick 1 is carried into the furnace by the conveyor 12 from the stage 23, the brick 1 carried into the furnace by the conveyor 12 is lifted by the crane device 13, and the brick 1 is stacked.

  When the brick 1 is supplied from the CS, the brick 1 may be a single unit or a block unit placed on a pallet. Even in the case of the brick 1 in block units, the brick 1 lifted by the crane unit 21 can be accurately delivered to the worker in the scaffold 18 as described above.

  After completion of the brickworking operation, both ends of the guide beam 19 may be cut and a suspension crane that travels in the furnace group length direction Y as in the conventional method may be installed and used for hardware installation.

According to the present invention, the brick 1 can be handled even in a large block, thereby significantly reducing the construction period of the coke oven construction.
Moreover, it can be used together with the conventional method of supplying the brick 1 stocked in the lower house 201 from the PS. For example, for the large block of the brick 1, the brick 1 is carried from the CS using the stage 23, and a small work requiring sorting work is required. For bricks, it is possible to use a conventional construction method such as supplying from PS after sorting in the lower house 201.
Furthermore, a construction method in which the brick 1 is carried in only from PS or a construction method in which the brick 1 is carried in only from CS is also possible.

  Since brickwork can be carried out by hanging bricks vertically with a crane device, brickwork in units of blocks, which was difficult by hand, is possible. In addition, there is an advantage that the work process is not affected even in rainy weather, and that efficient construction is possible even if the periphery of the furnace is narrow.

As mentioned above, although this invention was demonstrated with various embodiment, this invention is not limited only to these embodiment, A change etc. are possible within the scope of the present invention.
The number of conveyors 12 and crane devices 13 can be increased or decreased, and the pitch interval at which the portal frames 16 are arranged can be changed.
The temporary roof for building a coke oven according to the present invention can be applied to both PS and CS.

DESCRIPTION OF SYMBOLS 1 Brick, 10 Temporary roof, 11 Roof main body, 12 Conveyor, 13 Crane apparatus, 14 Prop, 15 Ceiling material, 16 Portal frame, 17 Frame, 18 Scaffolding, 19 Guide beam, 20 Running rail, 21 Crane unit, 22 wires, 23 stages, 100 coke oven.

Claims (7)

Construction method for constructing the coke oven in a building composed of a temporary roof constructed by arranging a gate-type frame extending in the depth direction of the coke oven over the PS and CS of the coke oven to be constructed at a predetermined pitch in the length direction of the furnace assembly. Because
A traveling rail that is bridged between the guide beams arranged on the ceiling material between the adjacent portal frames and is movable from PS to CS in the furnace depth direction, and mounted on the traveling rail in the furnace group length direction. With a crane unit that can run on
A coke oven construction method comprising constructing the coke oven by conveying bricks to an appropriate position in the furnace between the portal frames.   The coke oven construction method according to claim 1, wherein the crane unit is arranged between the two or more portal frames.   3. The coke oven construction method according to claim 1 or 2, wherein bricks are supplied not only from PS but also from CS so that the furnace construction work can be efficiently performed.   The coke oven construction method according to claim 3, wherein a stage for supplying bricks is arranged in CS. This is a temporary roof for building a coke oven in which bricks for forming the coke oven are carried into a building temporarily installed so as to cover the entire coke oven to be constructed, and the bricks are stacked to construct the coke oven. And
A roof main body configured to present a gate shape covering the coke oven, and extending long in the length direction of the coke oven of the coke oven,
A conveyor that extends from the outside of the shed main body to the inside and carries bricks to be stacked into the shed main body,
A temporary roof for building a coke oven, comprising: a crane device suspended so as to be able to run on a ceiling portion of the roof main body, and transferring and stacking bricks on the conveyor to a predetermined position.   The roof main body includes a plurality of gate-type frames formed by columns that are erected so as to sandwich the coke oven and a ceiling material that connects the upper ends of the columns, and these portal frames are the coke. 6. The temporary roof for building a coke oven according to claim 5, wherein the temporary roof is arranged in a row at a predetermined pitch in the furnace group length direction of the furnace and connected to each other.   The stage for the coke oven construction according to claim 5 or 6, wherein a stage is laid along the length of the coke oven in the coke oven in the vicinity of the main body, and the conveyor extends to the stage. Temporary shed.

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