JP6954495B1 - Storage equipment - Google Patents

Abstract

The storage facility 1 is composed of a plurality of biomass storage units 11 capable of storing biomass 2, a first structure 13 covering at least the lower portion 113 of the plurality of biomass storage units 11, and at least a part of the first structure 13. A biomass conveyor 12 that is located below a plurality of biomass storage units 11 in the enclosed space S1 and conveys biomass 2 discharged from the plurality of biomass storage units 11, and a plurality of coal storage units that can store coal 3. 21, a coal conveyor 22 that conveys coal 3 discharged from a plurality of coal storage units 21, and a shared conveyor that conveys biomass 2 conveyed by the biomass conveyor 12 and coal 3 conveyed by the coal conveyor 22. 32 and.

Description

The present invention relates to storage equipment.

Conventionally, facilities such as thermal power plants that use biomass as fuel are known. For example, Patent Documents 1 to 5 show this kind of technology. Patent Document 1 describes an equipment for supplying a solid fuel obtained by mixing and crushing rice husks and biomass other than the rice husks to a combustion facility such as a boiler. Patent Document 2 describes equipment including a biomass storage facility and a coal storage facility. Patent Documents 3 to 5 describe equipment including a transport line such as a conveyor that transports both biomass and coal.

Japanese Unexamined Patent Publication No. 2008-208360 Japanese Unexamined Patent Publication No. 2012-93024 Japanese Unexamined Patent Publication No. 2012-93007 Japanese Unexamined Patent Publication No. 2008-82651 Japanese Unexamined Patent Publication No. 2008-215710

By the way, biomass is lighter than fuel such as coal, and easily rises into the air when biomass is discharged or transported from the biomass storage section. In the equipment of Patent Documents 1 and 3, it is difficult to efficiently transport the biomass because the biomass is soared into the air during the transportation by the conveyor. Patent Document 2 does not describe a means for preventing the biomass from scattering to the outside during discharge or transportation of the biomass from the biomass storage facility. Since the equipment of Patent Documents 4 and 5 is configured to put coal on the biomass placed on the conveyor, the effect of suppressing the scattering of the biomass into the air during transportation can be expected. However, Patent Documents 4 and 5 do not describe means for preventing the biomass from scattering to the outside when it is put into the conveyor from the biomass storage unit, and there is room for improvement in terms of suppressing leakage to the outside of the facility. There is.

The present invention has been made in view of the above, and an object of the present invention is to provide a storage facility capable of efficiently transporting stored biomass while suppressing leakage of biomass to the outside of the facility.

The present invention is in a space in which a plurality of biomass storage units capable of storing biomass, a first structure covering at least the lower portion of the plurality of biomass storage units, and at least a part thereof are surrounded by the first structure. From a plurality of biomass storage units located below the plurality of the biomass storage units and transporting biomass discharged from the plurality of the biomass storage units, a plurality of coal storage units capable of storing coal, and a plurality of the coal storage units. The present invention relates to a storage facility including a coal conveyor for transporting discharged coal, and a shared conveyor for transporting biomass conveyed by the biomass conveyor and coal conveyed by the coal conveyor.

The shared conveyor is located below the installation surface of the biomass conveyor and the coal conveyor.

A second structure that covers the shared conveyor so as to isolate it from the outside is further provided.

According to the present invention, it is possible to provide a storage facility capable of efficiently transporting stored biomass while suppressing leakage of biomass to the outside of the facility.

It is a top view which shows the storage facility which concerns on one Embodiment of this invention. It is sectional drawing of the biomass storage area of the storage facility which concerns on one Embodiment of this invention. It is sectional drawing of the coal storage area of the storage facility which concerns on one Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiments.

The storage facility 1 according to the embodiment of the present invention will be described. FIG. 1 is a plan view showing the storage facility 1. FIG. 2 is a cross-sectional view of the biomass storage area 10 of the storage facility 1 cut along the line AA shown in FIG. FIG. 3 is a cross-sectional view of the coal storage area 20 of the storage facility 1 cut along the line BB shown in FIG. In addition, in FIG. 1, the illustration of the opening 316 of the upper wall portion 312 of the second structure 31 is omitted, in FIG. 2, the illustration of the inside of the biomass storage unit 11 is omitted, and in FIG. 3, the coal storage is omitted. The illustration of the inside of the part 21 is omitted.

The storage facility 1 according to the present embodiment is a facility for storing biomass 2 and coal 3 as fuels and supplying the stored biomass 2 and coal 3 to a combustion facility (not shown) in a thermal power plant.

Examples of the biomass 2 include plant-based biomass such as wood pellets obtained from waste wood, thinned wood, rice husks, and the like.

The storage facility 1 includes a biomass storage unit 11, a biomass conveyor 12, a first structure 13, a coal storage unit 21, a coal conveyor 22, a second structure 31, and a shared conveyor 32. To be equipped. As shown in FIG. 1, the storage facility 1 is mainly divided into three areas: a biomass storage area 10, a coal storage area 20, and a fuel transport area 30. Further, the fuel transport path in the storage facility 1 is divided into three paths: a biomass conveyor 12, a coal conveyor 22, and a shared conveyor 32.

The biomass storage area 10 is an area where the biomass 2 is stored. In the biomass storage area 10, a plurality of biomass storage units 11, a plurality of biomass conveyors 12, and a first structure 13 are installed. In the present embodiment, 16 biomass storage units 11, two biomass conveyors 12, and a first structure 13 are installed in the biomass storage area 10.

The biomass storage unit 11 is a tank in which the biomass 2 is stored. As shown in FIG. 1, in this embodiment, 16 biomass storage units 11 are arranged in two rows. Then, eight biomass storage units 11 are installed in parallel in each row.

As shown in FIGS. 1 and 2, the biomass storage portion 11 has a cylindrical portion 111 formed in a cylindrical shape on the upper side and a conical portion 112 formed in a hollow substantially inverted conical shape on the lower side. At the lower part 113 of the conical portion 112, a discharge port 114 from which the biomass 2 stored inside the biomass storage portion 11 is discharged is formed.

The first structure 13 is made of concrete and covers at least the lower 113 of the 16 biomass storages 11. The first structure 13 is a box shape having a substantially rectangular parallelepiped shape. The first structure 13 has a bottom wall portion 131, an upper wall portion 132, and side wall portions 133, 134, 135, 136. Inside the first structure 13, a space S1 surrounded by a bottom wall portion 131, an upper wall portion 132, and side wall portions 133 to 136 is formed.

The bottom wall portion 131 is the base of the first structure 13. The bottom wall portion 131 is formed in a substantially rectangular shape that is long in the direction in which eight biomass storage portions 11 are arranged in parallel in a plan view.

The side wall portion 133 is a wall that rises upward from one of the ends of the bottom wall portion 131 in the longitudinal direction (the back side of the paper surface in FIG. 2). The side wall portion 134 is a wall that rises upward from the other end side of the bottom wall portion 131 in the longitudinal direction (the front side of the paper surface in FIG. 2). The side wall portion 133 and the side wall portion 134 are formed at positions facing each other.

The side wall portion 135 is a wall that rises upward from one of the side edges of the bottom wall portion 131 in the lateral direction (on the right side of the paper in FIG. 2). The side wall portion 135 is formed with two openings 137 that communicate with the space S1 and the outside. Specifically, the opening 137 is formed in the vicinity of the lower portion 113 of the biomass storage portion 11 on the side wall portion 135 side. Further, on the side wall portion 135, a door body 14 capable of opening and closing the opening 137 is arranged in each opening 137. The door body 14 is an inspection shutter for entering and exiting the space S1. By providing the door body 14 that can enter and exit the space S1 on the side wall portion 135, it becomes easy to access the lower 113 of the biomass storage portion 11 from outside the facility of the storage facility 1.

The side wall portion 136 is a wall that rises upward from the other end of the bottom wall portion 131 in the lateral direction (on the left side of the paper in FIG. 2). The side wall portion 135 and the side wall portion 136 are formed at positions facing each other. The side wall portion 136 is formed with two openings 138 that communicate with the space S1 and the outside. Specifically, the opening 138 is formed in the vicinity of the lower 113 of the biomass storage portion 11 on the side wall portion 136 side.

The upper wall portion 132 is a substantially rectangular parallelepiped-shaped wall forming the upper surface of the first structure 13. The upper wall portion 132 is formed to have a size substantially equal to that of the bottom wall portion 131 in a plan view. The upper ends of the side wall portions 133 to 136 are connected to the lower surface of the upper wall portion 132. That is, the side wall portions 133 to 136 extend in the vertical direction between the end sides of the bottom wall portion 131 and the upper wall portion 132.

16 fitting holes 139 are formed in the upper wall portion 132. The fitting holes 139 are formed in the upper wall portion 132 at intervals so that eight fitting holes 139 are arranged in two rows. The 16 fitting holes 139 are formed at positions corresponding to the 16 biomass storage units 11. Each fitting hole 139 has a substantially inverted conical shape, and is formed so as to be able to fit into the conical portion 112 of the biomass storage portion 11. The biomass storage portion 11 is supported by the first structure 13 by fitting the conical portion 112 into the fitting hole 139.

The biomass conveyor 12 transports the biomass 2 discharged from the plurality of biomass storage units 11 to the fuel transport area 30. As shown in FIG. 1, at least a part of each of the two biomass conveyors 12 is located in the space S1 of the first structure 13, and eight biomass storage units 11 extend in a parallel direction. Specifically, each of the two biomass conveyors 12 is installed on the upper surface (installation surface) G1 of the bottom wall portion 131 so as to be located below the discharge port 114 of the eight biomass storage units 11. The upper surface G1 of the bottom wall portion 131 is located at substantially the same height as the ground G.

The biomass conveyor 12 extends from the vicinity of the side wall portion 135 of the first structure 13 through the opening 138 to the fuel transport area 30. Specifically, the starting end of the biomass conveyor 12 is located below the lower part 113 of the biomass storage section 11 on the side wall 135 side, and the ending portion thereof is located above the shared conveyor 32. In the storage facility 1 according to the present embodiment, the biomass 2 stored in the eight biomass storage units 11 is transported to the fuel transport area 30 by one biomass conveyor 12. As a result, the biomass 2 stored in the plurality of biomass storage units 11 can be efficiently discharged with a simple configuration.

The coal storage area 20 is an area where coal 3 is stored. The coal storage area 20 is located on the downstream side (combustion equipment side) of the fuel transfer path with respect to the biomass storage area 10. In the coal storage area 20, a plurality of coal storage units 21 and a plurality of coal conveyors 22 are installed. In the present embodiment, six coal storage units 21 and two coal conveyors 22 are installed in the biomass storage area 10.

The coal storage unit 21 is a tank in which coal 3 is stored. As shown in FIG. 1, in this embodiment, six coal storage units 21 are arranged in two rows. Then, three coal storage units 21 are installed in parallel in each row. As shown in FIGS. 1 and 3, the coal storage portion 21 has a conical shape with a hollow upper portion and a cylindrical shape from the central portion to the lower portion.

The coal conveyor 22 transports the coal 3 discharged from the plurality of coal storage units 21 to the fuel transport area 30. As shown in FIG. 1, the coal conveyor 22 is located downstream of the biomass conveyor 12 in the fuel transport path. Further, as shown in FIG. 1, each of the two coal conveyors 22 extends in the direction in which the three coal storage units 21 are parallel to each other. Specifically, each of the two coal conveyors 22 is installed on the installation surface G2, passes through the inside of the three coal storage units 21, and extends to the fuel transport area 30.

The starting end of the coal conveyor 22 is located inside the coal storage section 21 farthest from the fuel transport area 30, and the ending portion thereof is located above the shared conveyor 32. In the storage facility 1 according to the present embodiment, the coal 3 stored in the three coal storage units 21 is transported to the fuel transport area 30 by one coal conveyor 22. As a result, the coal 3 stored in the plurality of coal storage units 21 can be efficiently discharged with a simple configuration.

The fuel transport area 30 is an area for transporting the biomass 2 and the coal 3 to the combustion equipment. A common conveyor 32 and a second structure 31 are installed in the fuel transport area 30.

The shared conveyor 32 conveys the biomass 2 conveyed by the biomass conveyor 12 and the coal 3 conveyed by the coal conveyor 22 to the combustion equipment on the downstream side in the fuel transfer path. As shown in FIGS. 2 and 3, the shared conveyor 32 is located below the installation surface G1 of the biomass conveyor 12 and the installation surface G2 of the coal conveyor 22. The shared conveyor 32 extends toward the fuel facility so as to pass below the ends of the two biomass conveyors 12 and below the ends of the two coal conveyors 22. The shared conveyor 32 is composed of one or more conveyors. For example, the biomass 2 and the coal 3 that have fallen on the shared conveyor 32 are transported to the combustion facility while connecting the plurality of conveyors of the shared conveyor 32.

The second structure 31 has a substantially square cylinder shape as a whole and is made of concrete. The second structure 31 covers the common conveyor 32 so as to isolate it from the outside. The second structure 31 has a bottom wall portion 311 and an upper wall portion 312, and side wall portions 313 and 314. Inside the second structure 31, a space S2 surrounded by a bottom wall portion 311, an upper wall portion 312, and side wall portions 313 and 314 is formed.

The bottom wall portion 311 is the base of the second structure 31, and is located below the bottom wall portion 131 of the first structure 13. The bottom wall portion 311 is formed in a substantially rectangular shape that is long in the direction in which the common conveyor 32 extends in a plan view. A common conveyor 32 is installed on the upper surface of the bottom wall portion 311.

The side wall portion 313 is a wall that rises upward from one of the ends of the bottom wall portion 311 in the longitudinal direction (on the left side of the paper in FIGS. 2 and 3).

The side wall portion 314 is a wall that rises upward from the other end of the bottom wall portion 311 in the longitudinal direction (on the right side of the paper in FIGS. 2 and 3). The side wall portion 313 and the side wall portion 314 are formed at positions facing each other.

The side wall portion 314 is formed with four openings 315 that communicate the space S2 with the outside. Specifically, the opening 315 is arranged at a position where the two biomass conveyors 12 and the two coal conveyors 22 extend. As shown in FIGS. 1 and 2, the biomass conveyor 12 extends from the space S1 of the first structure 13 through the opening 138 and the opening 315 to the space S2 of the second structure 31. The end of the biomass conveyor 12 is located in the space S2. As shown in FIGS. 1 and 3, the coal conveyor 22 extends from the inside of the coal storage section 21 through the opening 315 to the space S2 of the second structure 31. The end of the coal conveyor 22 is located in space S2.

The upper wall portion 312 is a substantially rectangular parallelepiped-shaped wall forming the upper surface of the second structure 31. The upper wall portion 312 is formed to have a size substantially equal to that of the bottom wall portion 311 in a plan view. The upper ends of the side wall portions 313 and 314 are connected to the lower surface of the upper wall portion 312. That is, the side wall portions 313 and 314 extend in the vertical direction between the end edges of the bottom wall portion 311 and the upper wall portion 312 in the longitudinal direction. An opening 316 is formed in the upper wall portion 312.

Next, an example of a process in which the biomass 2 stored in the biomass storage unit 11 and the coal 3 stored in the coal storage unit 21 are transported to the combustion equipment will be described.

The biomass 2 stored in the plurality of biomass storage units 11 is discharged onto the biomass conveyor 12 from the discharge port 114. At this time, as shown in FIG. 2, since the lower 113 of the biomass storage unit 11 including the discharge port 114 is covered with the first structure 13, the biomass 2 that has fallen on the biomass conveyor 12 is put into the air. Even if it soars, it is difficult for it to be scattered to the outside, and leakage of the storage facility 1 to the outside of the facility can be suppressed.

As shown in FIG. 2, the biomass 2 on the biomass conveyor 12 is conveyed to the space S2 of the second structure 31 through the opening 138 and the opening 315, and is conveyed from the end of the biomass conveyor 12 to the shared conveyor. 32 falls on. The biomass 2 that has fallen on the common conveyor 32 is transported toward the combustion equipment.

The coal 3 stored in the plurality of coal storage units 21 is discharged to the coal conveyor 22. As shown in FIG. 3, the coal 3 on the coal conveyor 22 is conveyed to the space S2 of the second structure 31 through the opening 315, and falls from the terminal portion of the coal conveyor 22 onto the common conveyor 32. do. The coal 3 that has fallen on the common conveyor 32 is conveyed together with the biomass 2 toward the combustion equipment. At this time, as shown in FIG. 3, the coal 3 falls on the upper part of the biomass 2 on the shared conveyor 32. As a result, the biomass 2 is conveyed by the shared conveyor 32 while being covered with the coal 3, so that the biomass 2 can be prevented from flying up into the air.

In the above example of the transfer process of the biomass 2 and the coal 3, the biomass 2 and the coal 3 are simultaneously conveyed by the shared conveyor 32, but the biomass 2 and the coal 3 may be conveyed at different timings. That is, the biomass 2 and the coal 3 may be individually transported to the combustion facility.

According to the storage facility 1 according to the present embodiment described above, the following effects are obtained.

The storage facility 1 according to the present embodiment includes a plurality of biomass storage units 11 capable of storing biomass 2, a first structure 13 that covers at least the lower portion of the plurality of biomass storage units 11, and at least a part of the first structure. A biomass conveyor 12 that is located below the plurality of biomass storage units 11 in the space S1 surrounded by the structure 13 and that conveys the biomass 2 discharged from the plurality of biomass storage units 11, and a plurality of that can store coal 3. The coal storage section 21 of the above, the coal conveyor 22 located downstream of the biomass conveyor 12 and transporting the coal 3 discharged from the plurality of coal storage sections 21, and the biomass 2 conveyed by the biomass conveyor 12. And a shared conveyor 32 that conveys the coal 3 conveyed by the coal conveyor 22.

As a result, since the lower portion 113 of the biomass storage unit 11 is covered with the first structure 13, even if the biomass 2 discharged on the biomass conveyor 12 soars into the air, it can be suppressed from scattering to the outside. Further, since the biomass conveyor 12 for collectively transporting the biomass 2 discharged from the plurality of biomass storage units 11 is provided, the biomass 2 can be efficiently discharged with a simple configuration. Further, since the coal conveyor 22 is located on the downstream side of the biomass conveyor 12, the biomass 2 is placed first on the shared conveyor 32, and the coal 3 is charged onto the biomass 2. Therefore, since the biomass 2 is transported while being covered with the coal 3, it is possible to prevent the biomass 2 from scattering into the air during transportation, and the biomass 2 can be efficiently transported. Therefore, the stored biomass 2 can be efficiently transported while suppressing the leakage of the biomass 2 to the outside of the storage facility 1.

In the storage facility 1 according to the present embodiment, the shared conveyor 32 is located below the installation surfaces G1 and G2 of the biomass conveyor 12 and the coal conveyor 22.

As a result, it is possible to prevent the biomass 2 from leaking out of the facility when the biomass 2 is charged from the biomass conveyor 12 to the shared conveyor 32.

The storage facility 1 according to the present embodiment further includes a second structure 31 that covers the shared conveyor 32 so as to isolate it from the outside.

As a result, since the shared conveyor 32 is isolated from the outside by the second structure 31, it is possible to more reliably prevent the biomass 2 from leaking to the outside of the facility when the biomass is transported by the shared conveyor 32.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and can be appropriately modified.

In the above embodiment, the storage facility 1 includes 16 biomass storage units 11, but the number of biomass storage units 11 is not particularly limited as long as it is 2 or more. For example, the number of biomass storage units 11 included in the storage facility 1 may be 2 to 15 or 17 or more.

In the above embodiment, the storage facility 1 includes two biomass conveyors 12, but the number of biomass conveyors 12 is not particularly limited. For example, the number of biomass conveyors 12 included in the storage facility 1 may be one or three or more.

In the above embodiment, the storage facility 1 includes 6 coal storage units 21, but the number of coal storage units 21 is not particularly limited as long as it is 2 or more. For example, the number of coal storage units 2 provided in the storage facility 1 may be 3 to 5, or 7 or more.

In the above embodiment, the storage facility 1 includes two coal conveyors 22, but the number of coal conveyors 22 is not particularly limited. For example, the number of coal conveyors 22 included in the storage facility 1 may be one or three or more.

In the above embodiment, the first structure 13 has a box shape, but its shape is not particularly limited. For example, the first structure 13 may have a substantially inverted concave shape in a cross-sectional view without a bottom wall portion 131. Further, the first structure 13 may be formed from a structure divided into a plurality of parts or may be formed from one structure.

In the above embodiment, the second structure 31 has a substantially square cylinder shape as a whole, but the shape thereof is not particularly limited. For example, the second structure 31 may have a substantially inverted concave shape in a cross-sectional view without the bottom wall portion 311, does not have the bottom wall portion 311 and the upper wall portion 312, and the side wall portions 313 and 314 are on the ground. The structure may be erected from. Further, the second structure 31 may be formed from a structure divided into a plurality of parts, or may be formed from one structure.

In the above embodiment, the coal conveyor 22 is located downstream of the biomass conveyor 12 in the fuel transfer path, but the coal conveyor 22 is located upstream of the biomass conveyor 12 in the fuel transfer path. You may.

1 Storage equipment 2 Biomass 3 Coal 11 Biomass storage 12 Biomass conveyor 13 First structure 113 Lower part 21 Coal storage 22 Coal conveyor 32 Shared conveyor S1 Space

Claims (3)

Multiple biomass storage units that can store biomass,
A first structure that supports the plurality of said biomass storages and covers at least the lower part of the plurality of said biomass storages.
A biomass conveyor that is located below the plurality of biomass storage units in a space surrounded by at least a part of the first structure and that conveys biomass discharged from the plurality of biomass storage units.
Multiple coal storage units that can store coal,
A coal conveyor for transporting coal discharged from the plurality of coal storage units,
A shared conveyor for transporting biomass conveyed by the biomass conveyor and coal conveyed by the coal conveyor is provided .
A plurality of the biomass conveyors are arranged.
The first biomass conveyor, which is one of the plurality of biomass conveyors, is arranged on the downstream side of the biomass transport path in the shared conveyor with respect to the second biomass conveyor.
A storage facility in which the lower part of the plurality of biomass storage units and the space in which the plurality of biomass conveyors are located in the first structure communicate with each other. The storage facility according to claim 1, wherein the shared conveyor is located below the installation surface of the biomass conveyor and the coal conveyor. The storage facility according to claim 1 or 2, further comprising a second structure that covers the shared conveyor so as to isolate it from the outside.

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