JP2022156150A - Roof facility and construction method - Google Patents

Abstract

To provide a roof facility having a large degree of freedom in opening/closing a roof.SOLUTION: A roof facility for covering a pile of raw materials stacked in a raw material yard 1 includes a roof 9 including a plurality of roof bodies independent from each other so as to be independently movable, and a crane 7 configured to be capable of lifting and moving each of the plurality of roof bodies. If necessary, it is possible to partially open and close the roof by moving at least one of the roof bodies by means of a crane.SELECTED DRAWING: Figure 1

Description

The present invention relates to roof installations and construction methods.

Large-diameter semi-cylindrical segments (semi-cylindrical roof body) and small-diameter semi-cylindrical segments are alternated for the purpose of improving the surrounding environment of raw material yards where raw materials such as iron ore, carbon materials, and auxiliary materials are stacked outdoors. Patent Literature 1 discloses a net-like shell structure that serves as a roof that covers a pile of raw materials, in which a plurality of segments are arranged in a row and each segment is configured to be slidable in the longitudinal direction.

Chinese utility model CN204662662U

However, the shell structure of Patent Document 1 requires at least two pairs of rails, and furthermore, it is necessary to sufficiently remove obstacles such as raw materials deposited on the rails when moving the segments.

In addition, it is necessary to provide a drive device for each segment to move each segment. A complicated travel schedule that does not interfere is required.

The present invention has been made in view of the above problems, and its object is to provide a roof structure that does not require rails that may become an obstacle when moving the roof body, and that does not require preparation of a complicated movement schedule. To provide a roof facility with a large degree of freedom in opening and closing a roof.

The main invention for achieving the above object is a roof facility for covering a pile of raw materials stacked in a raw material yard, comprising a roof including a plurality of independent roof bodies so that each can move independently. and a crane configured to lift and move each of the plurality of roof bodies, and use the crane to move at least one of the plurality of roof bodies as needed. The roof equipment is characterized in that it is possible to partially open and close the roof by doing so.

Other features of the present invention will become apparent from the description of the specification and accompanying drawings.

ADVANTAGE OF THE INVENTION According to this invention, the roof equipment with a large degree of freedom of opening and closing of a roof can be provided.

1 is a schematic plan view of a raw material yard 1; FIG. FIG. 2 is a schematic front view of a roof body 9A included in a roof 9 included in the roof equipment 2; It is a schematic front view showing a roof 9 and a crane 7 provided in the roof equipment 2, and shows a state in which a roof body 9N is stacked on a roof body 9P. Fig. 2 is a diagram showing an example of a construction range of a roof 9 in an outdoor raw material yard 1'. Fig. 4 is a schematic diagram showing a crane track 17';

At least the following matters will become apparent from the present specification and the accompanying drawings.

A roof facility for covering a pile of raw materials stacked in a raw material yard, comprising a roof including a plurality of roof bodies independent of each other so that each can move independently, and each of the plurality of roof bodies is lifted. a crane configured to be movable, and optionally using the crane to partially open and close the roof by moving at least one of the plurality of roof bodies. A roof facility characterized in that it is possible to

According to such a roof equipment, it is possible to provide a roof equipment with a high degree of freedom in opening and closing the roof.

Preferably, in such a roof arrangement, said plurality of roof bodies are constructed such that at least two roof bodies can be stacked.

According to such a roof equipment, the moving distance of the roof body when opening and closing the roof can be shortened, and the roof can be opened and closed quickly. Also, when the roof is opened, a dedicated space for placing the roof body in the open portion is not required.

In this roof equipment, each of the plurality of roof bodies has a roof portion extending to both sides from the ridge portion, and has a cross-sectional shape that is convex upward and substantially constant along the extending direction of the ridge portion. The plurality of roof bodies are configured to support their own weight and maintain the overall shape in a state in which only the lower ends of the roof parts on both sides are in contact with the mounting surface, and the plurality of roof bodies are configured to support the two roof bodies. It is desirable to have a shape in which the upper and lower roof bodies are in contact with each other only at the lower end portions when stacked.

According to such roof equipment, when the roof bodies are stacked, only the lower end of the upper roof body is in contact with the lower roof body. Since only the lower end portion of the roof body is required, the roof can be partially opened more quickly than when the lower end portion and the portion other than the lower end portion are in contact with each other.

An engagement portion configured to engage a lifting device of the crane is provided at a position intermediate the upper end and the lower end of each roof section, and It is desirable that the lifting force acting on the roof body when lifting the roof body is applied to the engaging part from the lifting device engaged with the engaging part.

According to such a roof equipment, by providing the engaging portion on which a lifting force acts when lifting the roof body at an intermediate position between the upper end portion and the lower end portion of the roof portion, the engaging portion is moved to the intermediate position. Deformation (displacement amount of the lower end portion of the roof body) when the roof body is lifted can be suppressed as compared with the case where the roof body is provided outside.

In this roof installation, the crane has a plurality of wires for lifting for each of the lifting devices corresponding to one of the engaging portions, and at least two of the plurality of wires are horizontal. It is desirable that the roof member is stretched obliquely so that components of force in directions opposite to each other act on the roof member.

According to such a roof equipment, even if the force in the horizontal direction is applied by wind or the like while the roof body is being lifted, the amount of movement of the roof body in the horizontal direction can be suppressed. As a result, positioning can be easily performed when the roof body is lifted and installed. Also, it is possible to prevent the roof body from colliding with a crane or the like when the roof body is shaken by wind or the like.

In this method of constructing a roof facility, in a first construction area that is a part of the pile of raw materials in the longitudinal direction, the pile of raw materials, reclaimer tracks laid on both sides along the longitudinal direction, and performing foundation work including building a foundation for supporting a plurality of said roof bodies between stacker tracks and roof installation work including placing a plurality of said roof bodies on said foundation; , continuing the operation of the raw material yard at least in a portion excluding the first construction range; and a second construction range that is a part of the pile of raw materials in the longitudinal direction and is a portion other than the first construction range. and performing the foundation work and the roof installation work in the first work range, and after completing the roof installation work in the first work range and before completing the roof installation work in the second work range, in the first work range A construction method, comprising: resuming operation of a raw material yard.

According to this construction method, when the foundation work and roof installation work are being performed in the first construction range, the raw material yard is operated outside the first construction range, and the foundation work and roof construction are performed in another second construction range. Roof installation work can be carried out. In other words, it is possible to operate the raw material yard outside the construction area while performing foundation work and roof installation work in a part of the construction area, so that the unusable area of the raw material yard can be suppressed and the raw material yard can be efficiently operated. In addition, since the foundation work and the roof installation work can be performed within the desired construction range, the degree of freedom in setting the construction schedule is increased, and the foundation work and the roof installation work for the entire raw material yard can be quickly carried out. Furthermore, since there is no need to secure spare yard space during the construction period, or to remove or relocate stackers, reclaimers, and conveyors, costs can be reduced.

===this embodiment===
The roof equipment 2 according to this embodiment will be described below with reference to the drawings. In the following description, coal is used as the raw material, but the raw material is not limited to this, and the raw material may be iron ore, auxiliary raw materials, powder, or the like.

FIG. 1 is a schematic plan view of a raw material yard 1. FIG. In the schematic plan view, the horizontal direction is the longitudinal direction, the left side (right side) is left (right), the vertical direction is the depth direction, and the upper side (lower side) is the back (front).

The raw material yard 1 is provided with a stacker 3 (3a-3c), a reclaimer 5 (5a-5c), a crane 7, a roof 9, a storage space 11, a stacker track 13, a reclaimer track 15, and a crane track 17. there is As will be explained in detail below, in this embodiment the crane 7 and the roof 9 are the roof equipment 2 for covering the pile of coal piled up in the raw material yard 1 .

The stacker 3 is a facility for stacking the coal brought in via a tripper conveyor, a boom conveyor, etc. in the storage space 11, and the raw material yard 1 is provided with three stackers 3. More specifically, for example, in the case of the stacker 3 located second from the back, coal can be stacked from the second (third) storage space 11 from the back to the storage space 11 one front (back). It is possible.

Each stacker 3 can move on a stacker track 13 provided in the raw material yard 1, and the stacker track 13 is continuous from the left end to the right end along the longitudinal direction of the raw material yard 1. are provided. In other words, the stacker 3 can move from the left end to the right end of the raw material yard 1 , and can stack coal brought to any position in the longitudinal direction by such movement in the storage space 11 . An example of the stacker track 13 is a rail.

The reclaimer 5 is a facility that continuously scrapes the stored coal from the rotation of the bucket wheel at the tip of the boom and discharges it to the next process via the boom conveyor. are provided.

In addition, each reclaimer 5 can move on a reclaimer track 15 provided in the raw material yard 1, and the reclaimer track 15 extends from the left end to the right end along the longitudinal direction of the raw material yard 1. are set continuously up to In other words, the reclaimer 5 can move from the left end to the right end of the raw material yard 1, and by such movement, coal stored at any position in the longitudinal direction can be discharged to the next process. An example of the reclaimer track 15 is a rail.

The crane 7 is a gantry crane, and is equipment configured to lift and move each of a plurality of roof bodies, which will be described later. . A part of the roof 9 is opened and closed by the movement of the roof body. The detailed opening and closing of the roof body will be described later.

Each crane 7 includes a lifting device 7a, a plurality of wires 7b to 7d connected to the lifting device 7a, and an unwinding/winding device 7e for unwinding and winding the wires 7b to 7d. ing. Further, the crane 7 can move on a crane track 17 provided in the raw material yard 1, and the crane track 17 is provided continuously from the left end to the right end along the longitudinal direction of the raw material yard 1. It is That is, the crane 7 can move from the left end to the right end of the raw material yard 1, and by such movement, the roof body at any position in the longitudinal direction can be moved and opened and closed. An example of the crane track 17 is a rail.

The roof 9 includes a plurality of roof bodies that are independent of each other so that they can move independently. A quantity is provided to cover from to the right end. Specifically, one storage space 11 is provided with 40 roof bodies. In the following, for the sake of easy understanding of the explanation, a part of the roof body of the roof 9 will be given reference numerals. Specifically, 20 roof bodies from the front right side shown in FIG.

FIG. 2 is a view taken along arrow A, and is a schematic front view of a roof body 9A included in the roof 9 of the roof equipment 2. FIG. The roof body 9A has a ridge portion 9Au and a roof portion 9Af extending obliquely downward on the back side and obliquely downward on the front side on both sides in the depth direction from the ridge portion 9Au. That is, the cross-sectional shape of the roof body 9A is upwardly convex, and the cross-sectional shape is substantially constant in the extending direction (longitudinal direction) of the ridge.

In addition, the lower surface of the lower end portion 9Ab of the roof portion 9Af is configured to support its own weight and maintain its overall shape while in contact with the mounting surface of the crane track 17, and is stored in the storage space 11. It is installed so as to cover a pile of coal 11a. The other roof bodies 9B to 9T are also configured to support their own weights with similar shapes, and can be installed in the same manner as the roof body 9A.

That is, each of the plurality of roof bodies 9A to 9T has roof portions 9Af to 9Tf extending to both sides from the ridge portions 9Au to 9Tu, and has an upwardly convex cross-sectional shape along the extending direction of the ridge portions 9Au to 9Tu. Only the lower end portions 9Ab to 9Tb of the roof portions 9Af to 9Tf on both sides are configured to support their own weight and maintain the overall shape while being in contact with the mounting surface.

In addition, the roof body 9A has engaging portions 9Ak on both sides of the roof portion 9Af, which are engaged with wires or the like when being lifted. It is located in the middle position of the part 9Ab. The other roof members 9B to 9T also have similar engaging portions 9Bk to 9Tk at similar positions.

That is, the engaging portions 9Ak to 9Tk configured to engage with the lifting device 7a of the crane 7 are provided at intermediate positions between the upper end portions and the lower end portions 9Ab to 9tb of the respective roof portions 9Af to 9Tf. It is

When the roof body 9A is lifted, a lifting force acts on the engaging portion 9Ak, and the lifting force is applied from the lifting device 7a (see FIG. 3) of the crane 7 engaged. That is, the lifting force acting on the roof bodies 9A to 9T when lifting the roof bodies 9A to 9T is applied to the engaging portions 9Ak to 9Tk from the lifting device 7a engaged with the engaging portions 9Ak to 9Tk. configured to be

The storage space 11 is a place where the raw material coal 11a is piled up and stored. is set up. Stackers 3 or reclaimers 5 are arranged on both sides of each storage space 11 in the depth direction, and coal 11 a to be stacked or discharged by the stackers 3 or reclaimers 5 is stored in the storage spaces 11 .

<<<About opening and closing the roof>>>
Next, opening and closing of the roof bodies 9A to 9T will be explained using an example. The roof 9 according to the present embodiment can be partially opened and closed by moving at least one of the plurality of roof bodies 9A to 9T using a crane 7 as necessary. .

The roof 9 shown in FIG. 1 is an example in which a portion of the roof 9 where five roof bodies 9K, 9L, 9M, 9N, and 9O of the roof bodies 9A to 9T are located is open. In order to open the roof 9 in this way, the roof members 9K to 9O can be lifted and moved, and placed on top of any one of the other roof members 9A to 9J and 9P to 9T. Reference numerals 9K'-9O' indicate the positions of the roof members 9K-9O in their closed state before they are moved.

In other words, the roof bodies 9A-9T can be placed any on any and at least two can be stacked. In other words, the plurality of roof bodies 9A-9T are constructed so that at least two roof bodies 9A-9T can be stacked.

FIG. 3 is a view taken on arrow B, which is a schematic front view showing the roof 9 and the crane 7 provided in the roof equipment 2 of the present embodiment, showing a state in which the roof body 9N is stacked on the roof body 9P. It is a diagram. That is, FIG. 3 shows an example in which the roof body 9N is lifted by the crane 7, moved to the position of the roof body 9P, and placed on top of the roof body 9P.

As shown in FIG. 3, the upper roof body 9N is placed so that the lower surface of the lower end 9Nb of the roof 9Nf is in contact with the upper surface of the lower end 9Pb of the roof 9Pf of the lower roof body 9P. That is, the plurality of roof bodies 9A to 9T have such a shape that when two roof bodies 9A to 9T are stacked, the upper and lower roof bodies 9A to 9T are in contact with each other only at the lower ends 9Ab to 9Tb. .

Further, the crane 7 has two lifting devices 7a respectively corresponding to the two engaging portions 9Nk. Roof body 9N is lifted by winding wires 7b to 7d with device 7e.

The unwinding/winding device 7e is positioned almost directly above the engaging portion 9Nk. A wire 7b extends downward from the unwinding/winding device 7e, and the lower end of the wire 7b is engaged. It is connected to a lifting device 7a which engages the joint 9Nk.

Furthermore, a pair of wires 7c and 7d are connected to each of the lifting devices 7a, and the wire 7c connected to the lifting device 7a that engages with the engaging portion 9Nk on the front side (left side of the paper surface) is connected to the lifting device The wire 7d extends obliquely upward from 7a and is wound up by an unwinding/winding device 7e on the front side via a fixed pulley (not shown) provided on the crane 7. It extends obliquely upward in the back, and is wound up by an unwinding/winding device 7e on the front side via a fixed pulley (not shown) provided on the crane 7 . On the other hand, the wire 7c connected to the hoisting device 7a that engages with the engaging portion 9Nk on the far side (right side of the paper surface) extends obliquely upward from the hoisting device 7a and engages a fixed pulley (not shown) provided on the crane 7. The wire 7d extends obliquely upward from the engaging portion 9Nk and passes through a fixed pulley (not shown) provided on the crane 7. It is wound up by the unwinding/winding device 7e on the far side.

By extending the pair of wires 7c and 7d in opposite directions in the depth direction (horizontal direction) in this manner, the weight of the roof body 9N causes the pair of wires 7c and 7d to exert component forces in opposite directions in the horizontal direction. Occur.

That is, the crane 7 has a plurality of wires 7b to 7d for lifting for each lifting device 7a corresponding to one engaging portion 9Ak to 9Tk, and at least two of the plurality of wires 7b to 7d ( The wires 7c and 7d) are stretched obliquely so as to apply component forces in opposite directions to the roof members 9A to 9T in the horizontal direction.

<<<Construction method of roof equipment>>>
Next, an example of a method for constructing the roof equipment 2 (the crane 7 and the roof 9) will be described. Here, a construction method for constructing the roof facility 2 in the outdoor raw material yard 1' which does not have the roof facility 2 among the facilities of the raw material yard 1 will be described. FIG. 4 is a diagram showing an example of the construction range of the roof 9 in the outdoor raw material yard 1'.

In conventional raw material yards, raw materials are often piled outdoors like raw material yard 1', which causes deterioration of the surrounding environment due to dust generation and changes in moisture content due to rainfall, etc. As a measure to prevent deterioration of the quality that accompanies it, roof installation construction to make the raw material yard outside the raw material yard with a roof is considered promising.

As the roof installation work, for example, if the work range is about half the range from the deepest to the middle in the depth direction, as in the range of the upper right diagonal line shown on the far right side of FIG. and the reclaimer 5 on the reclaimer track 15 overlapping the construction area cannot be used during the construction period. In other words, since the two stackers 3, one reclaimer 5, and two storage spaces 11 located in the far side half of the raw material yard 1' cannot be used, securing the spare yard site during the construction period, the stacker 3. It is necessary to remove or relocate the reclaimer 5, conveyor (not shown), and the like.

On the other hand, in the roof installation work of the roof 9 according to the present embodiment, for example, the work is performed between the stacker track 13 and the reclaimer track 15 in the depth direction like the first work range H1 shown on the right side of the front. Therefore, the stacker track 13 and the reclaimer track 15 do not overlap each other. In other words, since the stacker 3 and the reclaimer 5 can be used even during the construction period, there is no need to secure a spare yard site, remove or relocate the stacker 3, reclaimer 5, and conveyor during the construction period. .

More specifically, construction work is carried out to construct the foundation portion of the range (crane track 17) indicated by the diagonally shaded area (crane track 17) in the first construction range H1. The work for constructing the foundation includes construction work for laying a mounting section for supporting a plurality of roof bodies, construction work for laying a moving section for moving the crane 7 in the longitudinal direction, and the like. When the construction of the foundation is completed, the crane 7 is installed, and all the roof bodies are moved to appropriate positions by the crane 7 and arranged, and the roof installation work is completed.

That is, the method for constructing the roof facility 2 according to the present embodiment includes a pile of coal 11a (storage space 11) in the first construction range H1, which is a part of the pile of coal 11a (storage space 11) in the longitudinal direction, Foundation work including building a foundation for supporting a plurality of roof bodies between the reclaimer track 15 and the stacker track 13 laid longitudinally on both sides thereof, and a plurality of roofs on the foundation. and to continue the operation of the raw material yard 1' at least except for the first construction area H1.

While operating the raw material yard 1 ′ outside the construction range, the raw material yard 1 having the crane 7 as the roof equipment 2 and the roof 9 is made by performing the raw material yard 1 ′ as a whole. becomes possible.

In addition, in the second construction area H2, which is longitudinally adjacent to the first construction area H1, it is possible to start construction of the foundation, for example, during the construction period of the first construction area H1. After the completion of the first construction area H1, the operation of the raw material yard 1' can be resumed in the first construction area H1 without waiting for the completion of the second construction area H2.

In other words, the construction method of the roof facility 2 according to the present embodiment is a part of the pile of coal 11a (storage space 11) in the longitudinal direction and is a part other than the first construction range H1. Construction work and roof installation work, and operation of the raw material yard 1' in the first construction area H1 after the completion of the roof installation work in the first construction area H1 and before the completion of the roof installation work in the second construction area H2. including resuming.

Although the first construction area H1 and the second construction area H2 have been described above as examples, the construction method of the present invention is not limited to this. For H3, start construction during the construction period of either or both of the first construction area H1 and the second construction area H2, and start the first construction area H1 and the second construction area without waiting for the completion of the third construction area H3. The operation of the raw material yard in range H2 may be resumed.

In addition, regarding the fourth construction range H4, which is the construction range of another storage space 11 on the left center, during one or more of the first construction range H1, the second construction range H2, and the third construction range H3, The operation of the raw material yards in the first construction area H1, the second construction area H2, and the third construction area H3 may be resumed without waiting for the completion of the construction in the fourth construction area H4 after starting construction.

<<<Modifications>>>
Next, a crane track 17', which is a modified example of this embodiment, will be described. FIG. 5 is a schematic diagram showing the crane track 17'. As shown in FIG. 5, the mounting surface of the crane track 17' on which the roof body 9'A is placed has a different shape from the mounting surface of the crane track 17. As shown in FIG.

More specifically, the mounting surface of the crane track 17' is an inclined surface that slopes downward toward the storage space 11, and the angle of the inclined surface is θ2. Since the angle θ2 is larger than the angle of repose θ1 of the coal, for example, even if the coal 11a during transportation falls onto the mounting surface due to wind or the like, the coal 11a is naturally placed on the surface by its own weight. Since it slides down from the placement surface in the direction of the storage space 11, it is possible to prevent coal 11a from accumulating on the placement surface.

In addition, as shown in FIG. 5, the lower surface of the lower end portion 9'Ab of the roof body 9'A is similarly inclined corresponding to the inclination of the mounting surface of the crane track 17'. The lower surface (grounding surface) and the mounting surface are designed to be in contact with each other. In addition, the upper surface of the lower end portion 9'Ab of the roof body 9'A is similarly inclined, and for example, the roof body 9'B is placed on the upper side of the roof body 9'A and stacked.

<<<Effectiveness of roof equipment>>>
As described above, the roof facility according to this embodiment is the roof facility 2 for covering the pile of coal 11a piled up in the raw material yard 1, and is composed of a plurality of roof facilities that are independent of each other so that they can move independently. A roof 9 including roof bodies 9A to 9T, and a crane 7 configured to lift and move each of the plurality of roof bodies 9A to 9T, and if necessary, a plurality of roof bodies 9A to 9T using the crane 7. The roof 9 can be partially opened and closed by moving at least one of the roof members 9A to 9T. Therefore, it is possible to provide a roof facility with a high degree of freedom in opening and closing the roof.

Large-diameter semi-cylindrical segments (semi-cylindrical roof body) and small-diameter semi-cylindrical segments are alternated for the purpose of improving the surrounding environment of raw material yards where raw materials such as iron ore, carbon materials, and auxiliary materials are stacked outdoors. A mesh shell structure is known, which is a roof covering a pile of raw materials, in which a plurality of segments are arranged in a row and each segment is configured to be slidable in the longitudinal direction.

However, such a shell structure requires at least two pairs of rails, and furthermore, it is necessary to sufficiently remove obstacles such as raw materials accumulated on the rails when moving the segments.

In addition, it is necessary to provide a drive device for each segment to move each segment. A complicated travel schedule that does not interfere is required.

On the other hand, the raw material yard 1 according to the present embodiment does not require rails that may become an obstacle when moving the roof due to the accumulation of obstacles. This eliminates the need for time and effort. In addition, since it is not impossible to move a segment of the same diameter to an area where one of the large-diameter segment and the small-diameter segment exists, there is no need to create a complicated movement schedule, and the roof 9 can be freely opened and closed. degree increases.

Also, by shortening the span (the length in the depth direction) of the roof bodies 9A to 9T, the span can be reduced and the cost can be reduced.

In addition, since the roof bodies 9A to 9T are lifted by the external crane 7, the number of drive devices for the roof bodies 9A to 9T can be reduced compared to the case where each of the roof bodies 9A to 9T is provided with a drive device. Cost can be reduced.

Also, in this embodiment, the plurality of roof bodies 9A to 9T are configured so that at least two roof bodies 9A to 9T can be stacked. As a result, the moving distance of the roof bodies 9A to 9T when opening and closing the roof 9 can be shortened, and the roof 9 can be opened and closed quickly. Also, when the roof 9 is opened, a dedicated space for placing the roof bodies 9A to 9T in the open portion is not required.

Further, in the present embodiment, each of the plurality of roof bodies 9A to 9T has roof portions 9Af to 9Tf extending to both sides from the ridge portions 9Au to 9Tu, and has an upwardly convex cross-sectional shape. , and only the lower ends 9Ab to 9Tb of the roof portions 9Af to 9Tf on both sides are in contact with the mounting surface so that they can support their own weight and maintain the overall shape. The plurality of roof bodies 9A to 9T have such a shape that when two roof bodies 9A to 9T are stacked, the upper and lower roof bodies 9A to 9T are in contact with each other only at the lower ends 9Ab to 9Tb. I decided to be there.

As a result, only the lower ends 9Ab to 9Tb of the upper roof bodies 9A to 9T are positioned when stacking the roof bodies 9A to 9T. A part of the roof 9 can be opened more quickly than when they are in contact with each other.

In addition, in this embodiment, an engaging device configured to engage with the lifting device 7a of the crane 7 is provided at an intermediate position between the upper end portion and the lower end portion 9Ab to 9Tb of each of the roof portions 9Af to 9Tf. Sections 9Ak to 9Tk are provided, and a lifting force acting on the roof bodies 9A to 9T when lifting the roof bodies 9A to 9T is transferred from the lifting device 7a engaged with the engaging sections 9Ak to 9Tk to the engaging section 9Ak. ∼9Tk.

By providing the engaging portions 9Ak to 9Tk at intermediate positions between the upper end portions and the lower end portions 9Ab to 9Tb of the roof portions 9Af to 9Tf, the engaging portion Deformation of the roof bodies 9A to 9T when the roof bodies 9A to 9T are lifted (displacement amounts of the lower ends 9Ab to 9Tb of the roof bodies 9A to 9T) compared to the case where the roof bodies 9Ak to 9Tk are provided at positions other than the intermediate positions. can be suppressed, and positioning can be easily performed when the roof bodies 9A to 9T are lifted and installed.

Further, in the present embodiment, the crane 7 has a plurality of wires 7b to 7d for lifting for each lifting device 7a corresponding to one of the engaging portions 9Ak to 9Tk. At least two of them (wires 7c and 7d) are stretched obliquely so as to apply component forces in mutually opposite directions in the horizontal direction to the roof members 9A to 9T.

As a result, even if the force in the horizontal direction is applied by wind or the like while the roof bodies 9A to 9T are being lifted, the amount of movement of the roof bodies 9A to 9T in the horizontal direction can be suppressed. This facilitates positioning when the roof members 9A to 9T are lifted and installed. Further, it is possible to prevent the roof bodies 9A to 9T from colliding with the crane 7 or the like when the roof bodies 9A to 9T are shaken by wind or the like.

Further, as in the present embodiment, the engaging portions 9Ak to 9Tk located on one side and the engaging portions 9Ak to 9Tk located on the other side with respect to the ridges 9Au to 9Uu of the roof bodies 9A to 9T, By providing the wires 7c and 7d stretched obliquely in opposite directions, the effect of suppressing the amount of movement in the horizontal direction is further enhanced.

In the construction method of the roof facility 2 according to the present embodiment, in the first construction range H1, which is a part of the pile of coal 11a in the longitudinal direction, the pile of coal 11a and the Foundation work including building a foundation for supporting the plurality of roof bodies 9A to 9T between the reclaimer track 15 and the stacker track 13, and placing the plurality of roof bodies 9A to 9T on the foundation. , continuing the operation of the raw material yard 1' at least in a portion excluding the first construction range H1, and a part of the coal 11a pile in the longitudinal direction and the first construction range Carrying out the foundation work and roof installation work in the second construction area H2, which is a portion other than H1, and after completing the roof installation work in the first construction area H1 and before completing the roof installation work in the second construction area H2, and resuming the operation of the raw material yard 1' in the first construction area H1.

By adopting such a construction method, when foundation work and roof installation work are being performed in the first construction area H1, the operation of the raw material yard 1' outside the first construction area H1 and another second construction work Foundation work and roof installation work can be performed in the range H2. In other words, it is possible to operate the raw material yard 1' outside the construction range while performing the foundation work and roof installation work in a part of the construction range, so the raw material yard 1' can be operated while suppressing the unusable range of the raw material yard 1'. can be operated efficiently. In addition, since the foundation work and the roof installation work can be performed within the desired construction range, the degree of freedom in setting the construction schedule is increased, and the foundation work and the roof installation work for the entire raw material yard 1' can be quickly performed. . Furthermore, since there is no need to secure a spare yard site, remove or relocate the stacker 3, reclaimer 5, or conveyor during the construction period, costs can be reduced.

===Other Embodiments===
The above-described embodiments are intended to facilitate understanding of the present invention, and are not intended to limit and interpret the present invention. The scope of the present invention is defined by the scope of the claims, and it goes without saying that modifications and improvements can be made without departing from the scope of the claims, and that equivalents thereof are included in the present invention.

Further, in the above embodiment, the roof 9 is all composed of the movable roof bodies 9A to 9T, but the present invention is not limited to this. may

Further, in the above embodiment, the lengths of the roof bodies 9A to 9T in the longitudinal direction are substantially the same, but the length is not limited to this. The length may be increased to allow opening and closing of such locations in one go.

Further, in the above embodiment, the cross section of the roof bodies 9A to 9T is approximately triangular, but the cross section is not limited to this, and may be, for example, approximately semicircular.

Also, in the above embodiment, the stacker 3 and the reclaimer 5 are used, but the present invention is not limited to this. For example, a stacker reclaimer having both stacker and reclaimer functions may be used instead. .

In the above embodiment, five storage spaces 11, three stackers 3, three reclaimers 5, and ten cranes 7 are provided, but the number is not limited to these. When ten storage spaces 11 are provided, the corresponding number of stackers 3, reclaimers 5, cranes 7, etc. may be provided.

Further, in the above embodiment, two wires 7c and 7d among the plurality of wires 7b to 7d for lifting provided for each lifting device 7a corresponding to one of the engaging portions 9Ak to 9Tk have a depth Although the configuration is shown in which the roof members 9A to 9T are stretched obliquely so that component forces in the horizontal directions opposite to each other act on the roof members 9A to 9T in the direction, the component forces in the horizontal directions opposite to each other in the longitudinal direction instead of the depth direction are shown. may be stretched obliquely so as to act on the roof bodies 9A to 9T. As a result, the amount of horizontal movement of the roof body in the longitudinal direction can be suppressed.

Further, in the above-described embodiment, a preferred form using a gantry crane capable of stably moving the roof body is shown as the crane 7, but the present invention is not limited to this, and the roof body can be lifted up. Any crane that can be moved may be used.

In addition, in the above embodiment, an example is shown in which a plurality of roof bodies are configured such that two roof bodies can be stacked, but the lower ends of the roof bodies are provided with sufficient strength so that three or more roof bodies can be stacked. The roof bodies may be configured to be stackable.

1 raw material yard, 1' raw material yard, 2 roof equipment, 3 stacker,
5 reclaimer, 7 crane, 7a lifting device, 7b-7d wire,
7e unwinding/winding device, 9 roof, 9A to 9T roof body, 9Au to 9Tu ridge,
9Af to 9Tf roof portion, 9Ab to 9Tb lower end portion, 9Ak to 9Tk engagement portion,
9'A roof body, 9'Ab lower end, 11 storage space, 11a coal (raw material),
13 stacker track, 15 reclaimer track, 17 crane track,
17' crane track, H1 first construction area, H2 second construction area,
H3 3rd construction area, H4 4th construction area, θ1 angle of repose of coal, θ2 angle

Claims (6)

A roof facility for covering a pile of raw materials stacked in a raw material yard,
a roof including a plurality of roof bodies independent of each other such that each is independently movable;
a crane configured to lift and move each of the plurality of roof bodies,
The roof equipment is characterized in that the roof can be partially opened and closed by moving at least one of the plurality of roof bodies using the crane as needed. 2. The roof arrangement of claim 1, wherein the plurality of roof bodies are configured such that at least two roof bodies are stackable. Each of the plurality of roof bodies has a roof portion extending to both sides from the ridge portion, and has a cross-sectional shape that protrudes upward and is substantially constant along the extending direction of the ridge portion. It is configured to support its own weight and maintain its overall shape with only the lower end in contact with the mounting surface,
3. The roof bodies according to claim 2, wherein the plurality of roof bodies have such a shape that when two of the roof bodies are stacked, the upper and lower roof bodies are in contact with each other only at the lower end portions. roof equipment. an engagement portion configured to engage a lifting device of the crane at a position intermediate the upper end and the lower end of each said roof section;
A lifting force acting on the roof body when lifting the roof body is configured to be applied to the engaging part from the lifting device engaged with the engaging part. The roof equipment according to claim 3. The crane has a plurality of wires for lifting for each lifting device corresponding to one of the engaging portions,
5. The roof equipment according to claim 4, wherein at least two of said plurality of wires are stretched obliquely so as to apply components of force in opposite directions to said roof body in the horizontal direction. A method for constructing a roof facility according to any one of claims 1 to 5,
In the first construction range, which is a part of the pile of raw materials in the longitudinal direction, the plurality of the above-mentioned piles of raw materials and the reclaimer track and the stacker track laid on both sides of the pile of raw materials along the longitudinal direction performing foundation work including building a foundation for supporting a roof body and roof installation work including placing a plurality of said roof bodies on said foundation;
Continuing the operation of the raw material yard at least except for the first construction area;
performing the foundation work and the roof installation work in a second work range that is a part of the raw material pile in the longitudinal direction and is a part other than the first work range;
resuming operation of the raw material yard in the first construction area after completion of the roof installation work in the first construction area and before completion of the roof installation work in the second construction area;
A construction method comprising:

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