JP7280164B2 - Sinter cooling device - Google Patents

Description

The present disclosure relates to a sinter cooling device.

A chiller with an annular hopper is sometimes used to cool the hot sinter.

For example, Patent Literature 1 discloses a baking apparatus comprising an annular table, an annular hopper provided above the table, and a louver and a suction fan for supplying cooling air to the inner space (annular space) of the annular hopper. A mineral cooling system is described.

The annular hopper is configured to rotate together with the table around a vertical axis of rotation. While the annular hopper is rotating, hot sintered ore is supplied to the annular hopper from above and deposited on the table and in the inner space of the annular hopper.

Cooling air is taken into the inner space of the annular hopper from the outside through a louver provided at the bottom of the annular hopper. The cooling air is sucked by the suction fan and flows upward through the inner space of the annular hopper in which the sintered ore is deposited, thereby cooling the sintered ore deposited in the annular hopper.

The lower end of the annular hopper is open, and the sinter ore cooled in the annular hopper is temporarily deposited on the annular table. The sintered ore on the annular table is continuously discharged with the rotation of the annular hopper and the annular table by a scraper provided between the lower end of the annular hopper and the upper surface of the annular table.

That is, the hot sintered ore is cooled by the cooling air flowing inside the annular hopper from the time it is supplied to the annular hopper until it descends as the annular hopper rotates and is discharged from below. there is

Japanese Patent No. 5138245

By the way, in a sintered ore cooling device using an annular sedimentation tank (such as an annular hopper), for example, as described in Patent Document 1, parts (internal parts; for example, A supporting member for the deposition tank, a member forming a cooling air passage, etc.) may be provided. In this case, in the internal space of the sedimentation tank, the descending speed (unloading speed) of the sintered ore may be distributed in the circumferential direction.

For example, when an internal part is installed in the upper part of the sedimentation tank, there is a space below this internal part where there is no part, so this space of sintered ore located in the vicinity of the internal part in the circumferential direction inflow to For this reason, the descending speed of the sintered ore tends to increase at positions near the internal parts. On the other hand, if the internal parts are installed in the lower part of the sedimentation tank, the sintered ore positioned above the internal parts is inhibited from descending by the internal parts existing below. Easy to stay in space. For this reason, the descending speed of the sintered ore at a position near the internal parts tends to be small.

In this way, if the unloading speed of the sinter ore is distributed in the sedimentation tank in the circumferential direction, this causes the temperature inside the sedimentation tank to be distributed in the circumferential direction. In that case, the sintered ore discharged after cooling in the sedimentation tank may be insufficiently cooled or supercooled, so the processing speed must be reduced according to the heat resistant temperature of the equipment used in the subsequent process. Alternatively, product quality may deteriorate.

In view of the above circumstances, an object of at least one embodiment of the present invention is to provide a sintered ore cooling device capable of suppressing insufficient cooling or supercooling of sintered ore.

A sinter cooling device according to at least one embodiment of the present invention includes:
A sedimentation tank having an annular space in which sintered ore supplied from above is deposited and capable of discharging the sintered ore downward from the annular space;
a blower for sucking air from above the sedimentation tank;
a plurality of internal components provided within the sedimentation tank so as to extend along a radial direction at a plurality of circumferential positions in the sedimentation tank;
a filling member provided above or below each of the internal parts so as to circumferentially divide the annular space in the sedimentation tank together with the internal parts;
Prepare.

According to at least one embodiment of the present invention, a sintered ore cooling device capable of suppressing insufficient cooling or supercooling of sintered ore is provided.

It is a schematic sectional drawing of the sinter cooling device which concerns on one Embodiment. It is a schematic sectional drawing of the annular hopper (sediment tank) which comprises the sinter cooling device which concerns on one Embodiment. It is the schematic of the cooling part which comprises the sintered ore cooling device which concerns on one Embodiment. It is a schematic sectional drawing along the circumferential direction of the annular hopper which concerns on one Embodiment. It is a schematic sectional drawing along the circumferential direction of the annular hopper which concerns on one Embodiment. It is a schematic sectional drawing along the circumferential direction of the annular hopper which concerns on one Embodiment. FIG. 4 is a schematic cross-sectional view showing internal components and a filler member according to one embodiment; FIG. 4 is a schematic cross-sectional view showing internal components and a filler member according to one embodiment; FIG. 4 is a schematic cross-sectional view showing internal components and a filler member according to one embodiment; It is a schematic sectional drawing along the circumferential direction of the annular hopper of a typical sinter cooling device.

Several embodiments of the present invention will now be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the components described as embodiments or shown in the drawings are not intended to limit the scope of the present invention, and are merely illustrative examples. do not have.

FIG. 1 : is a schematic sectional drawing of the sintered ore cooling device which concerns on one Embodiment. FIG. 2 : is a schematic sectional drawing of the annular hopper (sediment tank) which comprises the sinter cooling device which concerns on one Embodiment. FIG. 3 : is the schematic in the planar view of the cooling part which comprises the sintered ore cooling device which concerns on one Embodiment. The sintered ore is obtained by subjecting iron ore, which is a raw material of pig iron, to a sintering treatment as a pretreatment. The grain size of the sintered ore is generally about 5 mm or more and 200 mm or less.

As shown in FIG. 1, the sinter cooling device 1 according to one embodiment includes an annular hopper 2 (sediment tank) and an annular table 12 provided around a central axis O along the vertical direction, and the annular hopper 2 A cooling unit 10 for cooling the supplied sintered ore 5 is provided. The sintered ore cooling device 1 also includes a scraper 30 for scraping out the sintered ore 5 deposited on the annular table 12 .

The annular hopper 2 includes an inner peripheral wall 3 and an outer peripheral wall 4 which are provided in a circular shape around the central axis O. and define an annular space 6 . A supply chute 29 for supplying hot sintered ore 5 from a sintering machine (not shown) to the annular hopper 2 is provided above the annular hopper 2 . The sintered ore 5 supplied from the supply chute 29 through the upper end opening 2 a of the annular hopper 2 is deposited in the annular space 6 of the annular hopper 2 . An annular stationary hood 18 is provided on the upper portion of the annular hopper 2 to cover the upper portion of the annular hopper 2 .

The annular table 12 is provided around the central axis O below the annular space 6 of the annular hopper 2 . The sintered ore 5 deposited in the annular space 6 of the annular hopper 2 is discharged downward through the lower end opening 2b of the annular hopper 2, and the sintered ore 5 is deposited on the annular table 12. there is

The inner peripheral wall 3 of the annular hopper 2 and the annular table 12 are supported by a frame 21 provided on the inner peripheral side thereof. The frames 21 and 22 are rotatably coupled to a center bearing 14 provided at the position of the central axis O on the foundation 13 . The outer peripheral wall 4 of the annular hopper 2 is supported by support beams 27 radially extending between the inner peripheral wall 3 and the outer peripheral wall 4 . The support beams 27 may extend through the inner peripheral wall 3 to the outer peripheral wall 4 . A cooling medium may flow inside the support beams 27 .

A plurality of circular rails 15 are fixed to the lower surface of the frame 21 below the annular table 12 . Further, on the foundation 13, a plurality of support rollers 16 are arranged in a circular shape corresponding to a plurality of circular rails 15, and the annular table 12 and the annular hopper 2 are supported via the rails 15. It is rotatably supported on rollers 16 . A drive motor 17 is connected to a plurality of the support rollers 16, and the circular table 12 and the circular hopper 2 are rotated around the central axis O by the rotational frictional force of the support rollers 16 caused by the drive motor 17. It's becoming

The scraper 30 is provided between the lower end of the outer peripheral wall 4 of the annular hopper 2 and the annular table 12 . The scraper 30 is configured to guide the sintered ore 5 deposited on the annular table 12 to the radially outer side of the annular table 12 . Thereby, the sintered ore 5 deposited on the annular table 12 and in the annular space 6 of the annular hopper 2 is gradually discharged to the outside of the sintered ore cooling device 1 .

The cooling section 10 is arranged to supply a cooling fluid (eg air) to the annular space 6 of the annular hopper 2 . In the exemplary embodiment shown in FIG. 1, the cooling section 10 includes an inner louver 7, an outer louver 8, a central louver 9 and a ventilation duct 11 for drawing air into the annular space 6 of the annular hopper 2 from the outside. The cooling section 10 also includes a blower 20 for sucking air from above the annular hopper 2 .

As shown in FIGS. 1 to 3, the inner louver 7 and the outer louver 8 are incorporated in the lower portions of the inner peripheral wall 3 and the outer peripheral wall 4 of the annular hopper 2, respectively, so that air (cooling fluid) is supplied from the outside of the annular hopper 2. forms a passageway through which the The central louver 9 is circumferentially provided between the inner peripheral wall 3 and the outer peripheral wall 4 in the radial direction. The ventilation duct 11 is provided inside the annular hopper 2 so as to extend along the radial direction between the inner peripheral wall 3 and the outer peripheral wall 4 . configured to capture Air taken from the outside of the annular hopper 2 is supplied to the central louver 9 by the ventilation duct 11 .

The blower 20 is connected to an exhaust duct 19 provided above the annular hopper 2 . Note that the exhaust duct 19 is connected to the stationary hood 18 . By sucking with the blower 20, air is taken into the annular hopper 2 through the inner louver 7, the outer louver 8, the central louver 9 and the ventilation duct 11, and the air is directed upward inside the annular hopper 2. It flows and is discharged to the outside of the sinter cooling device 1 via the exhaust duct 19 .

A dust remover for removing dust contained in the air sucked by the blower 20 may be provided upstream of the blower 20 . Also, the air sucked into the blower 20 may be supplied to a boiler for recovering the heat of the air.

The sintered ore cooling device 1 includes a sealing portion 23 for suppressing leakage of cooling air from between the rotating annular hopper 2 and the stationary hood 18 . The seal portion 23 shown in FIG. 1 includes an annular trough portion 24 provided on the upper portion of the inner peripheral wall 3 and the outer peripheral wall 4 and a circular sealing plate 26 attached to the stationary hood 18 . A predetermined amount of sealing liquid 25 (for example, water) is supplied to the tub 24 , and the lower end of the sealing plate 26 is immersed in the sealing liquid 25 , so that the upper portion of the annular hopper 2 and the stationary hood 18 are separated from each other. and is sealed.

In the sintered ore cooling device 1 configured in this way, while the annular hopper 2 rotates around the central axis O together with the annular table 12, the high-temperature sintered ore 5 is annularly fed from above through the supply chute 29. The annular space 6 of the hopper 2 is fed. The sinter 5 is deposited on the annular table 12 and in the annular space 6 of the annular hopper 2 while forming a circumferential layer. The sintered ore 5 deposited in the annular space 6 is taken into the annular hopper 2 by the cooling unit 10 and cooled by the air flowing upward in the annular hopper 2 .

The sintered ore 5 deposited on the annular table 12 below the annular hopper 2 is guided radially outward by the scraper 30 as the annular hopper 2 and the annular table 12 rotate, and the outer peripheral wall 4 of the annular hopper 2. It is discharged from the annular hopper 2 through an opening formed between the lower end and the annular table 12 . As the sintered ore 5 is thus discharged from the annular hopper 2, the sintered ore 5 accumulated in the annular hopper 2 descends. In addition, until the sintered ore 5 supplied to the annular hopper 2 from the supply chute 29 is discharged from below the annular hopper 2 by the scraper 30, the annular hopper 2 and the annular table 12 are moved several times (for example, five to 15 times) rotate.

Hereinafter, the sintered ore cooling device 1 according to some embodiments will be described in more detail.
4 to 6 are schematic cross-sectional views along the circumferential direction of the annular hopper 2 according to one embodiment. 7-9 are schematic cross-sectional views showing an internal component and a filler member, respectively, according to one embodiment. In FIGS. 4 to 6, curves L1 to L6 show the boundaries of the layers of the sintered ore 5 supplied to the annular hopper 2, and the arrows in the figures are the descending velocity vectors of the sintered ore 5 at those positions. indicates

In some embodiments, for example as shown in FIGS. 4-6, the sinter cooling device 1 extends along the radial direction at a plurality of circumferential locations in the annular hopper 2 (sediment tank). A plurality of internal parts 40 provided in the annular hopper 2 and a filling member 60 provided above or below each internal part 40 are provided. The filling member 60 extends radially between the inner peripheral wall 3 and the outer peripheral wall 4 as well as the inner part 40 , and together with the inner part 40 corresponding to the filling member 60 , fills the annular space within the annular hopper 2 . 6 in the circumferential direction.

In some embodiments, the plurality of internal components 40 includes support beams 27 for supporting the outer perimeter wall 4 of the annular hopper 2 . Also, in some embodiments, the plurality of internal components 40 includes the ventilation ducts 11 that make up the cooling section 10 described above.

In the exemplary embodiment shown in FIG. 4, the plurality of internal components 40 includes support beams 27 provided within the annular hopper 2 . A filling member 60 extending downward from the support beam 27 is provided below the support beam 27 .

In the exemplary embodiment shown in FIG. 5 , the plurality of internal components 40 includes a support beam 27 that is a first member 46 provided within the annular hopper 2 and a support beam 27 (second member) within the annular space 6 of the annular hopper 2 . 1 member 46), and the ventilation duct 11, which is a second member 48 provided at a circumferential position different from the support beam 27 (first member 46). A first filling member 62 extending downward from the support beam 27 (first member 46) is provided below the support beam 27 (first member 46). A second filling member 64 extending upward from the ventilation duct 11 (second member 48) is provided above the ventilation duct 11 (second member 48).

In the exemplary embodiment shown in FIG. 6, the plurality of internal parts are the support beam 27 which is the upper member 42 provided within the annular hopper 2 and the support beam 27 (upper member 42 ) within the annular space 6 of the annular hopper 2 . ), and a ventilation duct 11 which is a lower member 44 provided at the same circumferential position as the support beam 27 (upper member 42). A filling member 60 is provided between the support beam 27 (upper member 42) and the ventilation duct 11 (lower member 44).

Here, FIG. 10 is a schematic cross-sectional view along the circumferential direction of the annular hopper 2 when the filling member 60 is not provided in the sintered ore cooling device 1 shown in FIGS. In FIG. 10, curves L1 to L6 indicate boundaries between layers of the sintered ore 5 supplied to the annular hopper 2, and arrows in the drawing indicate descending velocity vectors of the sintered ore 5 at those positions.

In the sintered ore cooling device 1 shown in FIG. 10 , internal parts 140 (support beams, etc.) and internal parts 141 (ventilation ducts, etc.) are provided at a plurality of circumferential positions inside the annular hopper 2 . When internal parts are provided in the annular hopper 2 in this manner, the descending speed (unloading speed) of the sintered ore 5 may be distributed in the circumferential direction in the internal space of the annular hopper 2 .

For example, since there are no parts in the area below the internal part 140 provided in the upper part of the annular hopper 2, the sintered ore 5 located in the vicinity of the internal part 140 in the circumferential direction reaches the area below the internal part 140. Influx is promoted. For this reason, as can be seen from FIG. 10, the descending speed of the sintered ore 5 in the vicinity of the internal component 140 tends to increase. At the circumferential position where the descending speed of the sintered ore 5 is high, the temperature of the sintered ore 5 discharged from below the annular hopper 2 becomes relatively high.

On the other hand, the sintered ore 5 located in the upper region of the internal part 141 provided in the lower part in the annular hopper 2 stays in the upper region of the internal part 141 because the descent is hindered by the internal part 141 existing below. It's easy to do. Therefore, the descending speed of the sintered ore 5 at a position near the internal component 141 tends to be small. At such circumferential positions where the descending speed of the sintered ore 5 is low, the temperature of the sintered ore 5 discharged from below the annular hopper 2 is relatively low.

In addition, the sintered ore 5 staying in the upper region of the internal component 141 tends to stay in the annular hopper 2 for a long time and has a low temperature. When the temperature distribution is formed inside the annular hopper 2 in this way, the pressure loss of the air flow is smaller at low temperatures, so the air tends to flow to relatively low temperature positions, and the temperature difference in the annular hopper 2 increases. easier.

In this manner, if the unloading speed of the sintered ore 5 is distributed in the annular hopper 2 in the circumferential direction, this causes the temperature inside the annular hopper 2 to be distributed in the circumferential direction. In this case, the sintered ore 5 discharged after being cooled in the annular hopper 2 may be insufficiently cooled or overcooled, so the processing speed has to be reduced in accordance with the heat resistant temperature of the equipment used in the subsequent process. or the quality of the product may deteriorate.

In this respect, in the above-described embodiment, the filling member is provided above or below each internal component 40 so as to circumferentially partition at least a portion of the annular space 6 in the annular hopper 2 along with the internal component 40 in the height direction. 60 is provided. As a result, when the filling member 60 is provided above the internal component 40 (for example, the ventilation duct 11), the space above the internal component 40 in which the sintered ore 5 can stay becomes smaller. It is possible to suppress the retention of the sintered ore 5 above. Therefore, it is possible to suppress the lowering speed of the sintered ore 5 in the vicinity of the internal parts. 5 and 6, in the vicinity of the internal component 40 in the circumferential direction, the curves L1 to L6 have gentler undulations than in the case of FIG.
In addition, when the filling member 60 is provided below the internal component 40 (for example, the support beam 27), the space in which the sintered ore 5 can flow is reduced below the internal component 40. Sintered ore 5 located in the vicinity of 40 is suppressed from flowing into the lower region of internal component 40 . Therefore, it is possible to suppress the descending speed of the sintered ore 5 from increasing in the vicinity of the internal component 40 . 4 to 6, in the vicinity of the internal component 40 in the circumferential direction, the curves L1 to L6 drop more moderately than in the case of FIG.
Therefore, according to the above-described embodiment, the descending speed of the sintered ore 5 in the annular space 6 of the annular hopper 2 is easily equalized in the circumferential direction, thereby supercooling and / or insufficient cooling of the sintered ore 5 can be effectively suppressed.

Further, according to the above-described embodiment, since the filling member 60 is provided above or below the internal component 40 to partition the annular space 6 in the circumferential direction, it is possible to suppress the flow of the cooling air in the circumferential direction. , it becomes easier to equalize the flow rate of the cooling air in the circumferential direction. Thereby, supercooling and/or insufficient cooling of the sintered ore 5 can be effectively suppressed.

Also, in the exemplary embodiment shown in FIG. 5, the first filler member 62 extends downward from the relatively upper support beam 27 (first member 46) and the relatively lower Since the second filling member 64 extending upward from the ventilation duct 11 (second member 48) is provided, a space in which the sintered ore 5 can flow below the support beam 27 (first member 46), and , the space in which the sintered ore 5 can stay above the ventilation duct 11 (the second member 48) can be reduced. Therefore, the sintered ore 5 is suppressed from staying above the ventilation duct 11 (second member 48), and the descending speed of the sintered ore 5 is reduced in the vicinity of the ventilation duct 11 (second member 48). can be suppressed, and the sintered ore 5 located in the vicinity of the support beam 27 (first member 46) in the circumferential direction is suppressed from flowing below the support beam 27 (first member 46). Therefore, it is possible to suppress an increase in the descending speed of the sintered ore 5 in the vicinity of the support beam 27 (the first member 46). Therefore, it becomes easy to equalize the descending speed of the sintered ore 5 in the annular space 6 in the circumferential direction, thereby effectively suppressing overcooling and/or insufficient cooling of the sintered ore 5 .

Further, according to the exemplary embodiment shown in FIG. 6, a filling member 60 is provided between the support beam 27 (upper member 42) and the ventilation duct 11 (lower member 44) provided at the same circumferential position. Therefore, the space where the sintered ore 5 can stay above the ventilation duct 11 (lower member 44) and the space where the sintered ore 5 can flow below the support beam 27 (upper member 42) are reduced. can do. Therefore, the sintered ore 5 is suppressed from staying above the ventilation duct 11 (lower member 44), and the descending speed of the sintered ore 5 decreases in the vicinity of the ventilation duct 11 (lower member 44). can be suppressed, and the sintered ore 5 located in the vicinity of the support beam 27 (upper member 42) in the circumferential direction is suppressed from flowing below the support beam 27 (upper member 42), It is possible to suppress an increase in the descending speed of the sintered ore 5 in the vicinity of the support beam 27 (upper member 42). Therefore, it becomes easy to equalize the descending speed of the sintered ore 5 in the annular space 6 in the circumferential direction, thereby effectively suppressing overcooling and/or insufficient cooling of the sintered ore 5 .

FIG. 7 is a schematic cross-sectional view showing the support beam 27 (internal part 40) in FIGS. 4 and 5 and the filling member 60 provided corresponding thereto. A filling member 60 shown in FIG. 7 is provided to extend downward from the support beam 27 along the height direction. The filling member 60 includes flat plate portions 61A and 61B having surfaces along the height direction, and has a shape that tapers downward in the height direction. The angle θ (see FIG. 7) of the surfaces of the flat plate portions 61A and 61B with respect to the horizontal direction may be 75 degrees or more.

FIG. 8 is a schematic cross-sectional view showing the ventilation duct 11 (internal component 40) in FIG. 5 and the filling member 60 provided corresponding thereto. A filling member 60 shown in FIG. 8 is provided so as to extend upward from the ventilation duct 11 along the height direction. The filling member 60 includes flat plate portions 63A and 63B having surfaces along the height direction, and has a shape that tapers upward in the height direction. The angle φ (see FIG. 8) of the surfaces of the flat plate portions 63A and 63B with respect to the horizontal direction may be 75 degrees or more.

FIG. 9 is a schematic cross-sectional view showing the support beam 27 and the ventilation duct 11 (internal part 40) in FIG. 6, and the filling member 60 provided corresponding to these. A filling member 60 shown in FIG. 9 is provided between the support beam 27 and the ventilation duct 11 so as to extend along the height direction. The filling member 60 includes flat plate portions 66A, 66B having surfaces along the height direction, and these flat plate portions 66A, 66B extend from both sides of the support beam 27 and the ventilation duct 11 in the circumferential direction. They are provided so as to sandwich the duct 11 .

In the exemplary embodiment shown in Figures 7 and 9, the support beams 27 include cooling passages 28 through which a cooling medium (eg, water) flows. A filling member 60 provided below the support beams 27 has a cavity 63 for receiving cooling medium leaked from the support beams. As shown in FIGS. 7 and 9, the cavity 63 may be formed by the inner wall surface of the filling member 60. FIG.

According to the above-described embodiment, by flowing the cooling medium through the cooling passages 28 inside the support beams 27, it is possible to prevent the temperature of the support beams 27 from becoming excessively high due to the high temperature sintered ore 5. . In addition, since the filling member 60 having the cavity 63 below the support beam 27 is provided, even if the cooling medium leaks from the inside of the support beam 27, the cavity 63 of the filling member 60 located below the support beam 27 will Leakage fluid can be stopped. Thereby, leakage of the cooling medium into the annular hopper 2 can be suppressed.

In some embodiments, the filling member 60 is positioned inside each of the height ranges of the annular space 6 of the annular hopper 2 (i.e., the height range between the top opening 2a and the bottom opening 2b of the annular hopper 2). It may be provided in the wider of the upper region or the lower region of component 40 . In addition, the position of the lower end opening 2b of the annular hopper 2 and the position of the lower end 4b of the outer peripheral wall 4 are the same in the height direction.

For example, in the embodiments shown in FIGS. 7 and 9, the support beam 27 as the internal component 40 is provided at a relatively high position in the annular space 6 in the height direction. The filling member 60 is provided in the wider lower region R1L of the upper region R1U and the lower region R1L of the support beam 27 in the annular space 6. As shown in FIG.

8 and 9, the ventilation duct 11 as the internal component 40 is provided in a region including the lower end of the annular space 6 (the position of the lower end opening 2b of the annular hopper 2) in the height direction. there is The filling member 60 is provided in the wider upper region R2U between the upper region R2U and the lower region (substantially nonexistent) of the ventilation duct 11 in the annular space 6 .

The larger the area above the internal component 40 in the annular space 6 in the annular hopper 2, the more the amount of sintered ore 5 staying in the space above the internal component 40 tends to increase. In addition, the wider the area below the internal component 40 in the annular space 6 in the annular hopper 2, the more likely the flow of the sintered ore 5 into the space below the internal component 40 is promoted. In this regard, according to the above-described embodiment, the filling member 60 is provided in the widest of the height range of the annular space 6, either above or below the internal component 40, so that the space above the internal component 40 It is possible to effectively suppress the retention of the sintered ore 5 in the space or the inflow of the sintered ore 5 into the space below the internal component 40 . Therefore, supercooling and/or insufficient cooling of the sintered ore 5 can be effectively suppressed.

In some embodiments, the total height H1 (see FIGS. 7-9) of each internal component 40 and its corresponding filler member 60 is less than the total height H0 (FIGS. 7-9) of the annular space 6. 9) is more than 2/3.

According to the above-described embodiment, the total height H1 of the internal component 40 and the filling member 60 corresponding to the internal component 40 is 2/3 or more of the total height H0 of the annular space. The space in which the sintered ore 5 can stay above or the space in which the sintered ore 5 can flow in below the internal component 40 can be reduced. Thereby, retention of the sintered ore 5 in the space above the internal component 40 or inflow of the sintered ore 5 into the space below the internal component 40 can be effectively suppressed. Therefore, supercooling and/or insufficient cooling of the sintered ore 5 can be effectively suppressed.
Further, the above-described total height H1 may be twice or more the width of the internal component 40 in the circumferential direction. This makes it easier to form the angle θ or the angle φ of the filling member 60 to 75 degrees or more, so that the sedimentation of the sintered ore 5 can be made difficult to prevent, and the sintered ore 5 is supercooled and / or insufficiently cooled. can be effectively suppressed.
In the above-described embodiment, the internal component 40 and the filling member 60 are connected to each other, but they may be integrally formed. In this case, a structure in which a portion corresponding to the internal component 40 and a portion corresponding to the filling member 60 are separated by a plate may be used.

Hereinafter, an outline is described about the sintered ore cooling device concerning some embodiments.

(1) A sintered ore cooling device according to at least one embodiment of the present invention,
A sedimentation tank having an annular space in which sintered ore supplied from above is deposited and capable of discharging the sintered ore downward from the annular space;
a blower for sucking air from above the sedimentation tank;
a plurality of internal components provided within the sedimentation tank so as to extend along a radial direction at a plurality of circumferential positions in the sedimentation tank;
a filling member provided above or below each of the internal parts so as to circumferentially divide the annular space in the sedimentation tank together with the internal parts;
Prepare.

In the configuration (1) above, a filling member is provided above or below each internal component so as to partition the annular space in the sedimentation tank along with the internal component in the circumferential direction. As a result, when the filling member is provided above the internal component, the space in which the sintered ore can be retained becomes smaller above the internal component, so the sintered ore is less likely to be retained above the internal component. can be suppressed. Therefore, it is possible to suppress the lowering speed of the sintered ore in the vicinity of the internal parts. In addition, when the filling member is provided below the internal component, the space in which the sintered ore can flow is reduced below the internal component, so the sintered ore located near the internal component in the circumferential direction is inside. Inflow below the component is suppressed. Therefore, it is possible to suppress an increase in the descending speed of the sintered ore in the vicinity of the internal parts. Therefore, according to the above configuration (1), the descending speed of the sintered ore in the annular space is easily equalized in the circumferential direction, thereby effectively suppressing supercooling and / or insufficient cooling of the sintered ore. can do.

(2) In some embodiments, in the configuration of (1) above,
The filling member is provided in the wider one of the upper region and the lower region of each of the internal parts within the height range of the annular space.

The larger the area above the internal parts in the annular space in the sedimentation tank, the more likely the amount of sintered ore that stays in the space above the internal parts. In addition, the wider the area below the internal component in the annular space in the sedimentation tank, the more likely it is that the sintered ore will flow into the space below the internal component. In this respect, according to the above configuration (2), the filling member is provided in the wider one of the upper region and the lower region of the internal component within the height range of the annular space, so that the heating in the space above the internal component is reduced. It is possible to effectively suppress the retention of the ore or the inflow of the sintered ore into the space below the internal parts. Therefore, supercooling and/or insufficient cooling of the sintered ore can be effectively suppressed.

(3) In some embodiments, in the configuration of (1) or (2) above,
The total height of each said internal component and said filler member corresponding to said internal component is at least twice the circumferential width of said internal component.

According to the configuration (3) above, since the total height of the inner part and the filling member corresponding to the inner part is set to be at least twice the width of the inner part in the circumferential direction, it is possible to heat the upper part of the inner part. It is possible to reduce the space in which the ore can stay or the space in which the sintered ore can flow under the internal parts, and the angle of the filling member with respect to the horizontal direction (for example, the angle θ or angle φ described above) can be set to 75 Since it becomes easier to form more than degree, it can be made difficult to prevent sedimentation of sintered ore. As a result, it is possible to effectively suppress the retention of sintered ore in the space above the internal component or the inflow of sintered ore into the space below the internal component. Therefore, supercooling and/or insufficient cooling of the sintered ore can be effectively suppressed.

(4) In some embodiments, in the configuration of any one of (1) to (3) above,
The plurality of internal parts include support beams extending along the radial direction at least between the inner peripheral wall of the deposition tank and the outer peripheral wall of the deposition tank.

A plurality of support beams extending radially between the inner peripheral wall and the outer peripheral wall may be provided inside the annular sedimentation tank. According to the above configuration (4), since the filling member is provided above or below the support beam provided in the sedimentation tank, the sintered ore is suppressed from staying above the support beam, and the support beam It is possible to suppress the lowering speed of the sintered ore in the vicinity of, or suppress the flow of the sintered ore located in the vicinity of the support beam in the circumferential direction below the support beam, It is possible to suppress an increase in the descending speed of the sintered ore in the vicinity of the support beam.
Therefore, it becomes easy to equalize the descending speed of the sintered ore in the annular space in the circumferential direction, thereby effectively suppressing overcooling and/or insufficient cooling of the sintered ore.

(5) In some embodiments, in the configuration of (4) above,
the support beam includes a cooling passage through which a cooling medium flows;
The filling member is provided below the support beam and has a cavity for receiving the cooling medium leaked from the support beam.

According to the above configuration (5), by flowing the cooling medium through the cooling passage inside the support beam, it is possible to suppress the temperature of the support beam from becoming excessively high due to the high-temperature sintered ore. Further, since the filling member having the cavity is provided below the support beam, even if the cooling medium leaks from the inside of the support beam, the leakage fluid can be stopped in the cavity of the filling member located below the support beam. can be done. As a result, leakage of the cooling medium into the filling bed can be suppressed.

(6) In some embodiments, in the configuration of any one of (1) to (5) above,
The plurality of internal components include ventilation ducts for introducing air into the deposition tank from at least one of the inner peripheral wall of the deposition tank and the outer peripheral wall of the deposition tank.

Inside the annular deposition tank, a plurality of ventilation ducts extending in the radial direction are provided for drawing air (for example, cooling air) into the deposition tank from the inner peripheral wall or the outer peripheral wall of the deposition tank. There is According to the above configuration (6), since the filling member is provided above or below the ventilation duct provided in the sedimentation tank, the sintered ore is suppressed from staying above the ventilation duct, and the ventilation duct It is possible to suppress the descending speed of sintered ore in the vicinity of , or suppress the flow of sintered ore located in the vicinity of the ventilation duct in the circumferential direction below the support beam, It is possible to suppress an increase in the descending speed of the sintered ore in the vicinity of the ventilation duct. Therefore, it becomes easy to equalize the descending speed of the sintered ore in the annular space in the circumferential direction, thereby effectively suppressing overcooling and/or insufficient cooling of the sintered ore.

(7) In some embodiments, in any of the above configurations (1) to (6),
The plurality of internal components are
an upper member;
a lower member provided at the same circumferential position as the upper member so as to be positioned below the upper member in the annular space of the sedimentation tank;
including
The filling member is provided between the upper member and the lower member.

According to the above configuration (7), since the filling member is provided between the upper member and the lower member provided at the same circumferential position, the space where the sintered ore can be retained above the lower member , and the space into which the sintered ore can flow can be reduced under the upper member. Therefore, it is possible to suppress the sintered ore from staying above the lower member, suppress the decrease in the descending speed of the sintered ore in the vicinity of the lower member, and the upper side in the circumferential direction. It is possible to suppress the sintered ore located in the vicinity of the member from flowing below the upper member, thereby suppressing an increase in the descending speed of the sintered ore in the vicinity of the upper member. Therefore, it becomes easy to equalize the descending speed of the sintered ore in the annular space in the circumferential direction, thereby effectively suppressing overcooling and/or insufficient cooling of the sintered ore.

(8) In some embodiments, in the configuration of any one of (1) to (6) above,
The plurality of internal components are
a first member;
a second member provided at a different circumferential position from the first member below the first member in the annular space of the sedimentation tank;
including
The filling member is
a first filling member extending downward from the first member;
a second filling member extending upward from the second member;
including.

According to the configuration (8) above, the first filling member extends downward from the first member located relatively upward, and the second member extends upward from the second member located relatively downward. Since the second filling member is provided, it is possible to reduce the space in which the sintered ore can flow below the first member and the space in which the sintered ore can be retained above the second member. Therefore, it is possible to suppress the sintered ore from staying above the second member, suppress the decrease in the descending speed of the sintered ore in the vicinity of the second member, and the second member in the circumferential direction. It is possible to suppress the sintered ore located in the vicinity of the first member from flowing below the first member, thereby suppressing an increase in the descending speed of the sintered ore in the vicinity of the first member. Therefore, it becomes easy to equalize the descending speed of the sintered ore in the annular space in the circumferential direction, thereby effectively suppressing overcooling and/or insufficient cooling of the sintered ore.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and includes modifications of the above-described embodiments and modes in which these modes are combined as appropriate.

As used herein, expressions such as "in a certain direction", "along a certain direction", "parallel", "perpendicular", "central", "concentric" or "coaxial", etc. express relative or absolute arrangements. represents not only such arrangement strictly, but also the state of being relatively displaced with a tolerance or an angle or distance to the extent that the same function can be obtained.
For example, expressions such as "identical", "equal", and "homogeneous", which express that things are in the same state, not only express the state of being strictly equal, but also have tolerances or differences to the extent that the same function can be obtained. It shall also represent the existing state.
Further, in this specification, expressions representing shapes such as a quadrilateral shape and a cylindrical shape not only represent shapes such as a quadrilateral shape and a cylindrical shape in a geometrically strict sense, but also within the range in which the same effect can be obtained. , a shape including an uneven portion, a chamfered portion, and the like.
Moreover, in this specification, the expressions “comprising”, “including”, or “having” one component are not exclusive expressions excluding the presence of other components.

1 Sintered ore cooling device 2 Annular hopper 2a Upper end opening 2b Lower end opening 3 Inner peripheral wall 3a Inner peripheral wall surface 4 Outer peripheral wall 4a Outer peripheral wall surface 4b Lower end 5 Sintered ore 6 Annular space 7 Inner louver 8 Outer louver 9 Central louver 10 Cooling unit 11 Ventilation duct 12 Annular table 13 Foundation 14 Center bearing 15 Rail 16 Support roller 17 Drive motor 18 Stationary hood 19 Exhaust duct 20 Blower 21 Frame 22 Frame 23 Seal part 24 Tub part 25 Seal liquid 26 Seal plate 27 Support beam 28 Cooling passage 29 Supply chute 30 Scraper 40 Internal part 42 Upper member 44 Lower member 46 First member 48 Second member 60 Filling member 61A Flat plate portion 61B Flat plate portion 62 First filling member 63 Cavity 63A Flat plate portion 63B Flat plate portion 64 Second filling member 66A Flat plate portion 66B Flat plate portion 140 Internal component 141 Internal component O Central axis R1L Lower region R1U Upper region R2U Upper region

Claims (8)

A sedimentation tank having an annular space in which sintered ore supplied from above is deposited and capable of discharging the sintered ore downward from the annular space;
a blower for drawing air above the sedimentation tank;
a plurality of internal components provided within the sedimentation tank so as to extend along a radial direction at a plurality of circumferential positions in the sedimentation tank;
a filler member provided alongside each of the internal components in the height direction ;
with
each of the plurality of internal components is provided in one of an upper region that is an upper half region of the annular space and a lower region that is a lower half region of the annular space;
at least a portion of the filling member corresponding to each of the internal components is provided in the other of the upper region and the lower region;
The total height of each said internal component and said filling member corresponding to said internal component is 2/3 or more of the height of said annular space.
Sinter cooling device. The sintered ore cooling device according to claim 1, wherein the filling member is provided in the wider one of the upper region and the lower region of each of the internal parts in the height range of the annular space. The sintered ore cooling device according to claim 1 or 2, wherein the total height of each of the internal parts and the filling members corresponding to the internal parts is twice or more the width of the internal parts in the circumferential direction. 4. The plurality of internal parts according to any one of claims 1 to 3, wherein the plurality of internal parts includes support beams extending along the radial direction at least between an inner peripheral wall of the sedimentation tank and an outer peripheral wall of the sedimentation tank. sinter cooling device. the support beam includes a cooling passage through which a cooling medium flows;
The sintered ore cooling device according to claim 4, wherein the filling member is provided below the support beams and has a cavity for receiving the cooling medium leaked from the support beams. 6. The plurality of internal parts according to any one of claims 1 to 5, wherein the plurality of internal parts includes a ventilation duct for taking air into the sedimentation tank from at least one of an inner peripheral wall of the sedimentation tank and an outer peripheral wall of the sedimentation tank. sinter cooling device. A sedimentation tank having an annular space in which sintered ore supplied from above is deposited and capable of discharging the sintered ore downward from the annular space;
a blower for drawing air above the sedimentation tank;
a plurality of internal components provided within the sedimentation tank so as to extend along a radial direction at a plurality of circumferential positions in the sedimentation tank;
a filler member provided alongside each of the internal components in the height direction;
with
The plurality of internal components are
an upper member;
a lower member provided at the same circumferential position as the upper member so as to be positioned below the upper member in the annular space of the sedimentation tank;
including
The upper member is provided in an upper region that is an upper half region of the annular space,
The lower member is provided in a lower region that is a lower half region of the annular space,
The filling member is provided between the upper member and the lower member ,
The total height of each said internal component and said filling member corresponding to said internal component is 2/3 or more of the height of said annular space.
Sinter cooling device. The plurality of internal components are
a first member;
a second member provided at a different circumferential position from the first member below the first member in the annular space of the sedimentation tank;
including
The filling member is
a first filling member extending downward from the first member;
a second filling member extending upward from the second member;
The sintered ore cooling device according to any one of claims 1 to 6, comprising:

Images