JPS6360815A - Stock yard - Google Patents

Abstract

PURPOSE:To adjust the humidity of stored coal, etc. and keep the quality of said coal, etc. constant by installing a roof which is movable along a longitudinal direction between a pair of structures which form the side walls of a storage area, and moving said roof in accordance with weather. CONSTITUTION:Coal C is unloaded from a transport ship 30 and, after being carried into the storing area A of a stock yard 1 by means of unloaders 32 and conveyors 33, 34 stored in pipes by means of stacker reclaimers 35 and a reclaimer 36. When it is raining or in a season when the direct rays of the sun are hard, a roof 9 is moved in the longitudinal direction of fences 3 by means of a driving device to adjust the humidity of the coal C in a defined storage area B which is to be transferred into a group of silos 38 next. On the other hand, when the coal C is overly dried, water is sprinkled on the coal C by means of sprinklers 37 to adjust its humidity adequately. In sensors of good weather, the roof 9 covering the defined storage area B is removed to hasten the drying of the coal C by the aid of open air.

Description

Detailed Description of the Invention "Field of Industrial Application" This invention relates to stockyards in which coal, ore, etc. are temporarily stored, and particularly relates to stockyards in which coal, ore, etc. are temporarily stored, and in particular, to stockyards that can maintain the quality of stored coal, ore, etc. at a constant level. It's about yards.

1. Conventional technology Generally, coal and ore transported by sea are temporarily stored in open piles in stockyards such as coal yards adjacent to quays, and are then crushed, refined, etc. as appropriate. It is transferred to the subsequent process.

For example, when storing coal, it is necessary to dry the coal to an appropriate humidity level for subsequent operations such as crushing and coal washing. There was a risk of fire, and great care had to be taken to control the humidity. Conventionally, the humidity of this coal has been adjusted by drying the coal in open piles in a stockyard as described above, and if the coal becomes too dry,
It was common practice to sprinkle water on the coal using a water sprinkler or the like to prevent it from drying out excessively.

``Problems to be Solved by the Invention'' However, in the conventional storage of coal in stockyards, the coal is stored in open piles, so the humidity of the coal is greatly affected by the weather. for example,
During periods of heavy rainfall, such as during the rainy season, the piles of coal covered with
Because the coal is not dried, the humidity of the coal rises to -1, and during periods of intense light such as midsummer or midwinter, the humidity of the coal rises to -5'l! During times of dry conditions, the coal becomes excessively dry, making it difficult to store the coal in the stockyard at a constant quality throughout the seasons. , there was a problem.

This invention was made in view of the above-mentioned problems, and its purpose is to provide a storage yard for coal, ore, etc. that maintains a constant quality regardless of the weather. It is said that

[-Means for solving the problem-1 Points for adjusting the humidity of coal, etc.] The following three points can be mentioned. In other words, ■ Preventing rain from falling on coal, etc. during rainy days; ■ Preventing direct light from hitting the coal, etc. during periods of intense direct rays; ■ Preventing direct light from hitting the coal, etc. during periods of good weather. -] A movable roof is erected on the 1' side of the coal, and during periods of rain and intense direct sunlight, the movable roof is exposed to the outside air. , ) - iii It becomes possible to easily adjust the humidity.

Based on the findings shown above, the present invention has developed a pair of structures that form the side walls of a storage area where coal, etc. are stored, and are erected facing each other at a certain interval. and a roof that covers a portion of the storage area, a track extending in the longitudinal direction of the structure, and support legs provided on the self-regulating roof. Karanaro Stockyard
, and the support leg is provided with a sliding mechanism for causing the support leg to travel along the track,
This solves the above problems.

1. In this invention, on the support leg of the roof covering a part of the storage area,
A slide mechanism is provided for making this support leg run along a track extending in the longitudinal direction of the structure serving as the side wall, so that the roof of the structure is moved through the support leg and the slide mechanism. It becomes possible to run in the longitudinal direction.

"Embodiments" Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 5 are diagrams showing a stockyard that is an embodiment of the present invention. In FIGS. 1 to 5, the reference numeral I indicates the entire stockyard, and this stockyard 1 is located adjacent to a quay 2 from which cargo can be easily unloaded from a port.

This stockyard l is on both sides of stockyard I.
A pair of fences (structures) 3.3 forming the side walls of the
．． The area between 3 and 5 is the storage area where coal C1 ore etc. are stored. As shown in Figure 4, this foundation 3 consists of a foundation 4 buried in the ground G and this foundation 4-1.
Concrete base 5 erected on J, +4
The fence 3 is constructed of a section 51-, which is erected, and a plurality of posts 6 provided at intervals in the longitudinal direction of the fence 3, and a lower part of the fence 3 is provided with a structure for collecting dust from the coal C. A dustproof fence 8 is provided to prevent scattering. 4 and 5 at one end of the fence 3.
As shown in the figure, beams 20 extending in the longitudinal direction of this fence 3 are provided. A groove 21 extending in the longitudinal direction is formed in this girder 20, and two rails 22, 22 are laid along this groove 21, and these grooves 2I and rails 22. .22 constitutes a trajectory 23.

A roof 9 covering approximately half of the storage area A is constructed between the fences 3 and 3. This roof 9 is a so-called steel truss structure roof, and is either a truss roof as shown in FIGS. 6 and 7, or the fence 3 as shown in FIGS.
．． 3 are connected in the longitudinal direction.

To explain this truss beam 10 in detail, the l-las beam 10
The upper chord member 11 made of a steel pipe, the T (lower chord member 12 made of a section steel, and these upper chord members 1) and the lattice member 13 made of a steel pipe connecting the lower chord + A12 are assembled into a lath shape. That's what happens.

In addition, a PC steel wire 16 is disposed on the lower chord member 12 described in 1iij, passing through ribs 15 provided at a predetermined interval on both sides of the web 14, and extending over the entire length of the lower chord member 12. By tensioning the PC steel wire 16 to a predetermined tension, prestress is introduced to the lower chord (A12).With the above configuration, the 1111 roof 9 will only be able to reduce deflection after being erected. without, a part of the tensile load acting on the F chord member I2 is borne by the prestress,
The weight of the roof 9 can be reduced accordingly. Therefore, it becomes possible to increase the span of the truss beam 10 itself, and the fence 3
．． When a vast column-free space is formed between 3 and 1, the roof 9, which will be described later as a movable body, applies a +J load to the drive device.
It will be reduced as much as possible.

At both ends of the roof 9, there are support legs 24 that engage with the negative end of the fence 3 and support the roof 9 in the longitudinal direction of the roof 9, as shown in FIG. Multiple pieces are provided at intervals. Moreover, at the lower end of this support leg 24,
A slide mechanism 25 for moving the support leg 24 along the track 23 is provided. This slide mechanism 2
5, a device 26 comprising a drive wheel 26 placed on the rail 22 of the fence 3 and a drive device 27 for driving the drive wheel 26 rolls on the rail 22 of the fence 3. This allows the entire roof 9 to move freely along the track 23, that is, in the longitudinal direction of the fence 3. Here, the drive device 27 is electric, and the power is supplied from the upper part via the support leg 24, but this power supply means is not limited to this, for example, the track 23
It may also be configured such that a power supply cable is provided at the top.

Further, a berth 3l is installed offshore of the quay 2 where the transport ship 30 is installed, and on this berth 31, coal C, etc. from the transport ship 30 is installed. A plurality of unloaders 32 are provided for unloading. Furthermore, between this unloader 32,
A conveyor 33 for transporting the coal C is provided, and conveyors 34, 34 connected to the conveyor 33 and transporting the coal C to the stockyard 1 extend through the stockyard 1 in the longitudinal direction. It is installed through. On this conveyor 34, a stacker reclaimer 35 and a reclaimer 36 are installed, which stack the coal C on the yamabushi and also dig up the dumped coal C and transfer it to the conveyor 34. It is installed so that it can be moved freely in the longitudinal direction. Further, in FIG. 1, reference numeral 37 is a water sprinkler for sprinkling water on the coal C, and reference numeral 38 is a group of silos connected to the conveyor 34 for crushing the coal C. One of the silos 38 is A roof 39 having a truss structure is installed in a part of the building.

Next, the operation of the system having the above structure will be explained.

First, as mentioned above, t}j is unloaded from the transport ship 30,
The coal C carried into the storage area Δ of the stockyard 1 by the unloader 32 and conveyors 33 and 34 is
The stacker reclaimer 35 and the reclaimer 36 stack the materials on a yamabushi and store them. Then, this coal C is stored within the storage area Δ of the stockyard 1 until it is transferred to the silo group 38, which is the subsequent process.
During rain and periods of intense direct sunlight, the roof 9 provided in the stockyard 1 covers the top of the coal C, and the humidity of the coal C is adjusted by blocking rain and direct sunlight. However, since the roof 9 does not have an area to cover the entire storage area A, it is necessary to set an area where the humidity of the coal C is mainly adjusted using the roof 9. This can be done by intensively adjusting the humidity in the storage area B (the right side of the storage area A in FIG. 1) where the coal C that will be transferred to the silo group 38 next is stored. The drive device 27 provided on the support legs 24 of the fence 3 is driven to move the roof 9 in the longitudinal direction of the fence 3, thereby moving the roof 9 to the storage area B' and moving the roof 9 to the storage area B. The humidity of coal C stored in B can be adjusted. In addition, if this coal C becomes excessively dry, water is sprinkled on the coal C using the water sprinkler 37,
Adjust the humidity accordingly.

Furthermore, in a period when the climate is favorable, [11j drive device 27 is driven to run on the roof 9; Coal C in B is exposed to the outside air to promote drying of this coal C. As a result, the humidity of the coal C stored in the storage area B can be kept within the ideal range without being affected by the weather, and therefore the quality of the coal C transferred to the silo 138 can be maintained constant. It becomes possible to do so.

In addition, according to the stockyard 1, the roof 9 covering a part of the storage area A is constructed to prevent dust generated from the coal C from scattering outside the stockyard 1 during storage. Defense 11 - Can be used with oro, and storage area A
Compared to constructing a roof that can be opened and closed over the entire structure, it has the advantage of being able to be constructed at a lower cost.

In particular, since the lower chord member 12 of the truss beam 10 constituting the roof 9 is prestressed, a long span roof can be realized as described above, and the fence 3
．． In addition to 3, there is no need for a support structure to support the truss beam 10, and therefore, a vast column-free space can be formed in the stockyard 1, and the erection work can be easily and inexpensively realized. It is.

Here, the storage area I3, where the humidity adjustment of the coal C mentioned above is mainly performed, is located in any part of the storage area Δ of the stockyard 1. However, silo group 3
From the perspective of maintaining a constant quality of Coal C to be transferred to Coal C, humidity adjustment should be focused on the storage area where Coal C to be transferred next is being removed from the pile. Of course.

Moreover, FIG. 8 is a diagram showing a modified embodiment of this invention,
The rail 22 is not provided in the groove 21 of the track 23, and the drive wheel 26 of the slide mechanism 25 installed at the lower end of the support leg 24 is made of rubber tires. That is, when the roof 9 runs, the rubber tires directly roll on the bottom surface of the space 12+.

In this modified embodiment of the stockyard 1, the operation is similar to that shown in the previous embodiment.

Note that the stockyard I of the present invention is not limited in shape, structure, etc. to the embodiment described in [111], and can be implemented with appropriate changes. - As an example, the truss beam lO constituting the roof 9 is not limited to a truss beam in which a press 1-less is introduced as in the above embodiment, but may be a truss beam with a slightly long span (I is a general 3. It may be a l-lath beam in which no prestress is introduced, or it may be a gamma-body truss structure or a lamella structure.
Further, the engagement means between the support leg 24 and the track 23 is I
The lower end surface of the support leg 24 and the bottom surface of the concave groove 22 of the track 23 are polished to a mirror finish. The structure may be such that a friction-reducing abrasive such as tetrafluoroethylene is coated on these surfaces together with nitro. Moreover, if the stockyard 1 is 8", it goes without saying that the materials to be stored in this stockyard 1 are not limited to coal, but may also be stored materials with relatively large particle sizes such as ore, or paper deposits. .

"Effects of the Invention" - As described in detail, according to the present invention, a roof covering at least a part of the storage area is constructed between a pair of structures forming the side walls of the storage area, and A track extending in the longitudinal direction of the structure is provided, and a support leg is provided on the roof, and a slide mechanism is provided on the support leg to allow the support leg to run along the track. Since we have constructed a stockyard, the roof is
Through the supporting legs and the sliding mechanism, the structure can be moved in the longitudinal direction, and therefore, by appropriately moving this roof depending on the weather, the coal, ore, etc. stored in the storage area can be protected from rain. , it blocks direct sunlight, etc., and also allows the coal, etc. to be actively exposed to the outside air when the weather is good, so it can be stored in the storage area without being affected by the weather. The humidity of coal, etc. can be kept within an ideal range, thereby making it possible to maintain the quality of coal, etc. at a constant level. Therefore, according to the present invention, it is possible to realize a storage yard that can store coal, ore, etc. while maintaining a constant quality regardless of the weather.

[Brief explanation of drawings]

Figures 1 to 5 are views showing a stockyard which is an embodiment of the present invention. Figure 1 is a plan view showing the entire quay on which this stockyard is installed, and Figure 2 is the same. Front view, Figure 3 is a sectional view taken along the line III-■' in Figure 1, Figure 4 is an enlarged view inside the ■ circle in Figure 3, and Figure 5 is an enlarged view inside the V circle in Figure 4. , FIG. 6 is a front view showing only a part of the truss beam used in the same example, and FIG. 7 is a front view showing only a part of the truss beam used in the same example.
FIG. 8 is a cross-sectional view taken along the + line, showing a stockyard according to a modified embodiment of the present invention, and is a cross-sectional view showing only the engagement portion between the roof and the fence in an enlarged view. be. A... Storage area, l... Stockyard, 3... Fence (
Structure), 9... Roof, 10... Truss beam, 23... Track, 24... Support leg, 25
...Slide mechanism.

Claims (1)

[Claims] A pair of structures forming the side walls of a storage area where coal, ore, etc. are stored are erected facing each other at a certain interval, and a part of the storage area is placed between these structures. A covering roof is erected, and the structure is provided with a track extending in the longitudinal direction of the structure, and the roof is provided with support legs, and the support legs are connected to the support legs. A stockyard characterized by being equipped with a slide mechanism for running along a track.