JP2016169898A - Sintered ore cooling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sintered ore cooling machine including a water seal device enabling its construction cost to be reduced and capable of reducing cost required for treating waste water.SOLUTION: This invention comprises many troughs 2 arranged in an annular form and running in a specified direction, a blower part 8 for blowing cooling gas from below the troughs into the troughs, an annular hood 10 covering upper portions of the troughs, a sintered ore feeding part 6 for feeding high temperature sintered ores in sequence into the troughs, and an ore discharging part 7 arranged at a rear side in the trough running direction with respect to the sintered ore feeding part. Then, an area from the sintered ore feeding part where high temperature discharged gas is generated toward a front side in the trough running direction is applied as a discharged heat recovery zone 11, a water sealed part 13 is arranged between the hood of the discharged heat recovery zone and the troughs to hold an airtight state against the surrounding air, and an area toward the ore discharging part except the discharged heat recovery zone is applied as a cooling zone, and a space between the hood in this cooling zone and the troughs is applied as a non-airtight state.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a rotary sinter cooler that cools sinter produced by a sintering machine.

In the rotary sinter cooler, a large number of troughs arranged in an annular shape are movably arranged, and the upper portions of these troughs are covered with an annular hood.
The high-temperature sinter produced by the sintering machine is fed into each trough at the sinter feeding section, and the sinter in the trough is cooled by blowing a cooling gas from below each trough. Go. And the cooled sintered ore is discharged | emitted when a trough drive | works to an excavation part.
Here, exhaust gas generated when the sintered ore is cooled is recovered and sent to an exhaust heat recovery facility.
The sinter cooler of Patent Document 1 includes a water storage section for storing water provided on the entire circumference of the outer and inner annular side walls of the coke receiving section constituting a large number of troughs arranged in an annular shape, It has a water seal device with a seal plate that extends downward from the edge of the water and is immersed in the water in the water reservoir. This water seal device prevents low temperature outside air from entering the exhaust gas in the hood. In addition, exhaust heat recovery is performed efficiently.

Japanese Utility Model Publication No. 60-132445 (water sealing device 26 in FIG. 2)

However, the sinter cooler disclosed in Patent Document 1 needs to be provided with a water seal device all around the coke receiving portion, which may increase the construction cost.
In addition, the water stored in the water storage section of the water seal device is regularly replaced, but a large amount of waste water is generated from the water storage section provided all around the coke receiving section. There is also a problem that it takes.
Therefore, the present invention has been made paying attention to the above-mentioned unsolved problems of the conventional example, and includes a water seal device capable of reducing the construction cost and reducing the cost spent for wastewater treatment. An object of the present invention is to provide a sintered ore cooler capable of achieving the above.

  In order to achieve the above object, a sinter cooler according to an aspect of the present invention includes a large number of troughs arranged in a ring and traveling in a certain direction, and a cooling gas from below the numerous troughs into the trough. A blower that blows air, an annular hood that covers the top of the large number of troughs, a sintered ore charging unit that sequentially charges high-temperature sintered ore into the large number of troughs, and the sintered ore charging unit And a discharge portion for discharging the sintered ore in the trough that has been cooled and is disposed on the rear side in the trough travel direction. Then, a region on the front side in the trough travel direction from the sintered ore charging portion where high-temperature exhaust gas is generated is defined as an exhaust heat recovery zone, and a water seal is provided between the hood and the trough in the exhaust heat recovery zone. Thus, the airtightness with the outside air was maintained, and the region up to the exhausting portion excluding the exhaust heat recovery zone was set as a cooling zone, and the space between the hood and the trough in this cooling zone was set in a non-airtight state.

In the sinter cooler according to the present invention, the region on the front side in the trough traveling direction from the sinter input portion where the high-temperature exhaust gas is generated is used as the exhaust heat recovery zone, and highly efficient exhaust heat recovery can be performed. In addition, since the water seal portion is provided only in the exhaust heat recovery zone, the construction cost can be reduced as compared with the conventional device in which the water seal device is provided on the entire circumference.
In addition, since the amount of water accumulated in the water seal portion is small compared to the water of the conventional device in which the water seal device is provided on the entire circumference, it is possible to reduce the cost spent on waste water treatment.

It is the figure which showed the sintered ore cooler of 1st Embodiment which concerns on this invention roughly by planar view. It is a figure which shows the water seal part of 1st Embodiment shown by the AA arrow of FIG. (A) is the water seal release part shown by the BB line arrow of FIG. 1, (b) is the water seal release part shown by the CC line arrow of FIG. 1, (c) 1. It is the water seal release part shown by the DD line | wire arrow of FIG. 1, (d) is the water seal release part shown by the EE line arrow of FIG. (A) is the water seal return part shown by the GG arrow of FIG. 1, (b) is the water seal return part shown by the HH arrow of FIG. 1, (c) It is the water seal return part shown by the II arrow of FIG. It is the cancellation | release attitude | position holding | maintenance part shown by the FF line arrow of FIG. It is a figure which shows the water seal part of the sinter cooler of 2nd Embodiment which concerns on this invention. It is a figure which shows the water seal cancellation | release part of the sinter cooler of 2nd Embodiment which concerns on this invention, (a) respond | corresponds to the position shown by the BB arrow of FIG. 1, (b) is a figure. 1 corresponds to the position indicated by the arrow CC in FIG. 1, (c) corresponds to the position indicated by the arrow DD in FIG. 1, and (d) is indicated by the arrow EE in FIG. Corresponds to the position. It is a figure which shows the water seal return part of the sinter cooler of 2nd Embodiment which concerns on this invention, (a) respond | corresponds to the position shown by the GG arrow of FIG. 1, (b) is a figure. 1 corresponds to the position indicated by arrows HH in FIG. 1, and (c) corresponds to the position indicated by arrows II in FIG. It is a figure which shows the cancellation | release attitude | position holding | maintenance part of the sinter cooler of 2nd Embodiment which concerns on this invention, and respond | corresponds to the position shown by the FF arrow of FIG.

  Next, first and second embodiments according to the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic, and the relationship between the thickness and the planar dimensions, the ratio of the thickness of each layer, and the like are different from the actual ones. Therefore, specific thicknesses and dimensions should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.

[First Embodiment]
FIG. 1 shows a sinter cooler 1 according to the first embodiment, and FIG. 2 shows a view taken along line AA in FIG. The sinter cooler 1 includes a large number of troughs 2 arranged in an annular shape. These many troughs 2 are arranged on a pair of rails 4a and 4b arranged on the upper surfaces of the annular mounts 3a and 3b, and can run in the clockwise direction in FIG.
Above the annular mounts 3a and 3b, a sintered ore charging portion 6 is provided. A high temperature sintered ore 5 generated by a sintering machine (not shown) is supplied to the sintered ore charging unit 6 and is sequentially charged into the empty trough 2 that has traveled. Further, an ore discharge portion 7 is provided on the rear side in the trough traveling direction with respect to the sintered ore charging portion 6.
A plurality of air ducts 8 are annularly arranged at the lower part of the annular mounts 3a and 3b, and the cooling gas sent from the blower 9 to the air duct 8 is formed in the bottom plate portion 2a of the trough 2 (not shown). ) And flow upward.

The sintered ore 5 that has been sequentially input to the large number of troughs 2 in the sintered ore charging unit 6 is used for cooling that is sent from the air duct 8 while the large number of troughs 2 travels to the position where the discharge unit 7 is provided. When the bottom plate 2a of the trough 2 is opened above the discharge unit 7 by being cooled with air, the cooled sintered ore 5 falls to the discharge unit 7.
And the upper part of many troughs 2 arrange | positioned cyclically | annularly is covered with the cyclic | annular food | hood 10. As shown in FIG.
As shown in FIG. 1, a region in front of the sinter ore charging portion 6 in the trough traveling direction is an exhaust heat recovery zone 11. The exhaust heat recovery zone 11 is an area where high-temperature exhaust gas is generated in the hood 10, and the high-temperature exhaust gas is sent to an exhaust heat recovery facility (not shown) via a recovery duct 12. Moreover, the area | region to the exhaust part 7 other than the exhaust heat recovery zone 11 is made into the cooling zone.

In the exhaust heat recovery zone 11, water sealing portions 13 are provided at both edges in the width direction between the hood 10 and the trough 2, and the cooling zones other than the exhaust heat recovery zone 11 are provided. The space between the hood 10 and the trough is not airtight.
In addition, a water seal release unit 14 is provided in the cooling zone forward of the trough travel direction from the end 11b of the exhaust heat recovery zone 11, and the water seal returns to the region from the start end 11a of the exhaust heat recovery zone 11 to the exhaust mine unit 7. A portion 15 is provided.
In the cooling zone between the water seal release unit 14 and the water seal return unit 15, a release posture holding unit 30 that is continuous with the water seal release unit 14 and the water seal return unit 15 is provided.

As shown in FIG. 2, the water sealing portion 13 is provided extending in the longitudinal direction on the lower inner side of the outer side wall 10 a and the inner side wall 10 b in the width direction of the hood 10, and stores water W. A tank 16 and a sealing member 18 fixed in a hanging position from the tip of a stay 17 protruding outward in the horizontal direction from the width direction of the trough 2 and immersed in the water W of the water storage tank 16 are provided. .
The seal member 18 is a long plate-like elastic member made of Teflon (registered trademark) rubber or the like that can withstand a high temperature of about 300 ° C. The seal members 18 are fixed to the stays 17 of the troughs 2 with the long direction facing the trough travel direction. The seal members 18 of the troughs 2 arranged adjacent to each other in the travel direction are the lengths of the mutual seal members 18. The ends in the scale direction overlap in the thickness direction.

As shown in FIG. 3A, the water seal release unit 14 is disposed in a water storage tank 19 that stores water W as a container continuous with the water storage tank 16 of the water seal unit 13, and the water storage tank 19. And a single release posture plate 20 that gradually lifts the sealing member 18 from the water W as the trough 2 travels.
FIG. 3A shows the starting end shape (cross section taken along line BB in FIG. 1) of the water seal release portion 14 adjacent to the water seal portion 13, and the release posture plate 20 at this position is shown in FIG. The one end in the width direction (the left end in FIG. 3A) is fixed at a position slightly higher than the water surface of the water W, and the other end in the width direction (the right end in FIG. 3A) is the water storage tank 19. An upper surface 20a is formed that is fixed at substantially the center in the width direction of the bottom plate and has a downward slope from one end in the width direction toward the other end in the width direction.

FIG. 3B shows the shape of the water seal release portion 14 in the front in the trough traveling direction (cross-sectional view taken along the line CC in FIG. 1). The end portion is fixed to the end portion in the width direction of the bottom plate of the water storage tank 19 to form an upper surface 20a having a gentle downward slope as compared with the case shown in FIG.
FIG. 3 (c) shows the shape of the water seal release portion 14 in the trough travel direction from the position shown in FIG. 3 (b) (cross section taken along line DD in FIG. 1). The release posture plate 20 is fixed to the wall of the water storage tank 19 at the other end in the width direction, thereby forming an upper surface 20a with a gentler downward slope than in the case shown in FIG. ing.

FIG. 3D shows the terminal shape of the water seal release portion 14 (cross section taken along line EE in FIG. 1), and the release posture plate 20 at this position has the other end in the width direction. The upper surface 20a higher than the water surface of the water W is formed by being fixed to the wall portion of the water storage tank 19 at the same height as the one end in the width direction.
The seal member 18 that passes through the water seal release portion 14 along with the traveling of the trough 2 contacts the upper surface 20a of the release posture plate 20 at a position adjacent to the water seal portion 13 (starting end of the water seal release portion 14). The lower end side is slightly inclined outward (see FIG. 3A), and the entire lower surface is gradually inclined outward by contacting the upper surface 20a where the downward inclination gradually becomes gentler toward the water surface side of the water W. It moves (see FIGS. 3 (a) and 3 (b)), and comes into contact with the upper surface 20a higher than the water surface of the water W at the end of the water seal releasing portion 14 to take a horizontal seal releasing posture. Be raised.

As shown in FIG. 4A, the water seal return unit 15 is disposed in a water storage tank 21 that stores water W as a container continuous with the water storage tank 16 of the water seal unit 13, and the water storage tank 21. And a single return posture plate 22 that is bent and deformed so that the sealing member 18 is gradually immersed in the water W as the trough 2 travels.
FIG. 4 (a) shows the starting end shape (cross section taken along line GG in FIG. 1) of the water seal return portion 15 that is close to the ore discharge portion 7, and the return posture plate 22 at this position is shown in FIG. The one end in the width direction (the left end in FIG. 4A) is fixed at a position slightly higher than the water surface of the water W, and the other end in the width direction (the right end in FIG. 3A) is the water storage tank 21. An upper surface 22a is provided that is fixed to the wall and has a gentle downward slope from one end in the width direction to the other end in the width direction.

FIG. 4B shows the shape of the water seal return portion 15 in the trough travel direction from the position shown in FIG. 4A (cross section taken along line HH in FIG. 1). The return posture plate 22 is provided with an upper surface 22a with the other end in the width direction fixed to the end in the width direction of the bottom plate of the water storage tank 21 and a steep downward slope as compared with the case shown in FIG. Yes.
FIG. 4C shows the shape of the water seal return portion 15 in the trough travel direction from the position shown in FIG. 4B (cross section taken along line II in FIG. 1). The return posture plate 22 is fixed to the center in the width direction end of the bottom plate of the water storage tank 21 at the other end in the width direction, so that the upper surface is given a steeper downward slope than in the case shown in FIG. 22a is provided.

The seal member 18 that passes through the water seal return portion 15 as the trough 2 travels contacts the upper surface 20a of the return posture plate 22 in the vicinity of the discharge portion 7 (the start end of the water seal return portion 15). By doing so, it is inclined downward from the horizontal seal release posture and immersed in the water W (see FIG. 4A), and comes into contact with the upper surface 22a having a steep downward slope, so that it is substantially half the area of the seal member 18. Is immersed in the water W (see FIG. 4B), and the entire lower surface of the sealing member 18 is immersed in the water W by contacting the upper surface 22a having a steep downward slope.
Moreover, the release attitude | position holding | maintenance part 30 continuously provided in the water seal cancellation | release part 14 and the water seal return | restoration part 15 is shown in FIG. 5 (F-F arrow sectional view of FIG. A holding plate 31 extending horizontally from the lower end of the outer wall 10a (and the inner wall 10b) in the width direction toward the trough 2 is provided.
The seal member 18 that passes through the release posture holding unit 30 slides on the holding plate 31 to hold the horizontal seal release posture.

Next, the effect of the sinter cooler 1 of the first embodiment described above will be described.
According to the sinter cooler 1 of the first embodiment, since the high-temperature sinter 5 immediately after being input to the trough 2 from the sinter input section 6 passes through the exhaust heat recovery zone 11, the exhaust heat recovery is performed. Hot exhaust gas is generated in the zone 11. A water seal 13 is provided between the hood 10 and the trough 2 of the exhaust heat recovery zone 11, and the exhaust heat recovery zone 11 is kept airtight with the outside air, so that the exhaust gas maintains a high temperature state. And sent to the waste heat recovery facility. Therefore, the sinter cooler 1 of the first embodiment can perform highly efficient exhaust heat recovery.
Moreover, since the sinter cooler 1 of 1st Embodiment has provided the water sealing part 13 only in the exhaust heat recovery zone 11, compared with the conventional apparatus which provided the water sealing apparatus in the perimeter, construction cost Can be reduced.

The water sealing portion 13 includes a water storage tank 16 that stores water W, and a seal member 18 that hangs down from both sides in the width direction of each trough 2 and is immersed in the water W of the water storage tank 16. The airtightness with the outside air of the exhaust heat recovery zone 11 can be reliably maintained with a simple structure.
Further, the plate-like seal member 18 fixed to each trough 2 is gradually brought into a lateral posture (seal release posture) by contacting the release posture plate 20 of the water seal release portion 14, and the release posture holding portion 30. The seal release posture is held by contacting the holding plate 31, and the posture gradually changes to a state where the seal is released by contacting the return posture plate 22 of the water seal return portion 15. As described above, the sealing member 18 only repeats the horizontal posture and the hanging state in the water seal state and the water seal release state, and since excessive external force does not act, it is possible to prevent damage even if used for a long time. Can do.
Further, the amount of water stored in the water storage tanks 16, 19, 21 of the water seal part 13, the water seal release part 14, and the water seal return part 15 is the same as that of the conventional apparatus provided with the water seal device on the entire circumference. Since the amount is small in comparison, the cost for wastewater treatment can be reduced.

[Second Embodiment]
Next, FIGS. 6 to 9 show the main part of the sintered ore cooler of the second embodiment. In addition, the same code | symbol is attached | subjected to the same component as the sinter cooler 1 of 1st Embodiment shown in FIG. 1, and the description is abbreviate | omitted.
As shown in FIG. 6, in the exhaust heat recovery zone 11 of the second embodiment, water sealing portions 35 are provided at both edges in the width direction between the hood 10 and the trough 2 to maintain airtightness with the outside air. Yes.
Further, in the cooling zone forward in the trough traveling direction from the end 11b of the exhaust heat recovery zone 11, a water seal release portion 36 shown in FIG. 7A is provided, and the exhaust ore portion from the start end 11a of the exhaust heat recovery zone 11 is provided. 7 is provided with a water seal return portion 37 shown in FIG.
In the cooling zone between the water seal release unit 36 and the water seal return unit 37, as shown in FIG. 9, a water release unit 36 and a release posture holding unit 38 continuous to the water seal return unit 37 are provided. ing.

The water sealing portion 35 shown in FIG. 6 is fixed in a hang-down posture from the water storage tank 16 that stores water W and the tip of the stay 17 that protrudes outward in the horizontal direction from the width direction of the trough 2. And a sealing member 39 immersed in 16 water W.
The seal member 39 is an accordion-shaped elastic member made of Teflon rubber or the like that can withstand a high temperature of about 300.degree. The seal members 39 fixed to the troughs 2 arranged adjacent to each other in the traveling direction, and the end portions in the traveling direction overlap each other in the thickness direction.
The water seal release unit 36 shown in FIG. 7A is disposed in the water storage tank 19 in which water W is stored as a container continuous with the water storage tank 16 of the water seal unit 35, and the water storage tank 19. 2 and a single release posture plate 40 that is bent and deformed to gradually lift the seal member 39 from the water W as the vehicle travels.

Fig.7 (a) shows the starting end shape (BB sectional view of FIG. 1) of the water seal cancellation | release part 36 adjacent to the water seal part 35, The release attitude | position board 40 of this position is shown in FIG. In contact with the bottom plate of the water storage tank 19.
FIG. 7B shows the shape of the water seal release portion 36 in the front in the trough traveling direction, and the release posture plate 40 at this position is slightly raised from the case shown in FIG. Is arranged.
FIG. 7C shows the shape of the water seal release portion 36 in the front of the trough traveling direction from the position shown in FIG. 7B, and the release posture plate 40 at this position is shown in FIG. 7B. It is arranged at a position further raised than the case indicated by.

FIG. 7 (d) shows the terminal shape of the water seal release portion 36, and the release posture plate 40 at this position is arranged at a position higher than the water surface of the water W.
The seal member 39 that passes through the water seal release portion 36 as the trough 2 travels is slightly in contact with the release posture plate 40 at a position adjacent to the water seal portion 13 (the start end of the water seal release portion 36). (Refer to FIG. 7 (a)), and gradually contracted by contacting with the release posture plate 40 that gradually increases (see FIG. 7 (a), (b)), water seal At the terminal end of the release portion 36, the release posture plate 40 at a position higher than the water surface of the water W comes into contact with the release posture plate 40 and is pulled up from the water W.

The water seal return part 37 shown in FIG. 8A is disposed in the water storage tank 21 in which the water W is stored as a container continuous with the water storage tank 16 of the water seal part 13, and inside the water storage tank 21. And a single return posture plate 41 that gradually immerses the seal member 18 in the water W as the vehicle travels.
FIG. 8 (a) shows the starting end shape of the water seal return portion 37 that is close to the discharge portion 7, and the return posture plate 41 at this position is disposed at a position slightly lower than the water surface of the water W. Has been.
FIG. 8B shows the shape of the water seal return portion 37 in the trough travel direction from the position shown in FIG. 8A, and the return posture plate 41 at this position is shown in FIG. It is located in the lower water W than the case shown by.
FIG. 8 (c) shows the shape of the water seal return part 37 in the trough traveling direction from the position shown in FIG. 8 (b), and the return posture plate 41 at this position is the position of the water storage tank 21. It is in contact with the bottom plate.

And the sealing member 39 which passes said water seal return part 37 with driving | running | working of the trough 2 is in contact with the return attitude | position board 41 in the vicinity of the excavation part 7 (starting end of the water seal return part 37). The bellows shape slightly extends from the most contracted state (see FIG. 8A), and the return posture plate 41 is positioned on the bottom plate side of the water storage tank 21, so that the original state is restored. Then, the bellows shape is elongated (see FIGS. 8B and 8C).
9 includes a holding plate 42 that extends horizontally from the lower end of the outer wall 10a (and the inner wall 10b) in the width direction of the hood 10 to the inside toward the trough 2. As shown in FIG. Yes. The seal member 39 that passes through the release posture holding portion 38 is held in the most contracted state by sliding on the holding plate 42.

Next, the effect of the sinter cooler of the second embodiment described above will be described.
According to the second embodiment, as in the first embodiment, the water sealing portion 35 is provided between the hood 10 and the trough 2 of the exhaust heat recovery zone 11 to maintain the airtightness with the outside air. The exhaust gas generated in the recovery zone 11 is maintained at a high temperature and sent to the exhaust heat recovery facility, so that highly efficient exhaust heat recovery can be performed.
Moreover, since the water sealing part 35 is provided only in the exhaust heat recovery zone 11, the construction cost can be reduced as compared with the conventional device in which the water sealing device is provided on the entire periphery.
The water sealing portion 13 includes a water storage tank 16 that stores water W, and a seal member 18 that hangs down from both sides in the width direction of each trough 2 and is immersed in the water W of the water storage tank 16. The airtightness with the outside air of the exhaust heat recovery zone 11 can be reliably maintained with a simple structure.

Further, the bellows-shaped seal member 39 fixed to each trough 2 is brought into a posture (seal release posture) that gradually contracts by contacting the release posture plate 40 of the water seal release portion 36, and the release posture holding portion. The seal release posture is held by contacting the holding plate 42 of 38, and the bellows shape is gradually changed to the extended state by contacting the return posture plate 41 of the water seal return portion 37. As described above, the seal member 39 only repeats expansion and contraction in the water seal state and the water seal release state, and an excessive external force does not act on the seal member 39. Therefore, the seal member 39 can be prevented from being damaged even when used for a long time.
Further, the amount of water stored in the water storage tanks 16, 19, 21 of the water seal 35, the water seal release unit 36, and the water seal return unit 37 is the same as that of the conventional device provided with the water seal device on the entire circumference. Since the amount is small in comparison, the cost for wastewater treatment can be reduced.

DESCRIPTION OF SYMBOLS 1 Sinter cooler 2 Trough 2a Bottom plate part 3a, 3b Annular mount 4a, 4b Rail 5 Sinter ore 6 Sinter ore input part 7 Exhaust part 8 Air duct (blower part)
9 Blower (Blower part)
DESCRIPTION OF SYMBOLS 10 Hood 10a Outer wall 10b Inner wall 11 Waste heat recovery zone 11a Start end 11b End 12 Recovery duct 13 Water seal part 14 Water seal release part 15 Water seal return part 16 Water storage tank 17 Stay 18 Seal member 19 Water storage tank 20 Release posture Plate 20a Upper surface 21 Water storage tank 22 Return posture plate 22a Upper surface 30 Release posture holding portion 31 Holding plate 35 Water seal portion 36 Water seal release portion 37 Water seal return portion 38 Release posture holding portion 39 Seal member 40 Release posture plate 41 Return posture Plate 42 Holding plate W Water

Claims (6)

A large number of troughs arranged in a ring and traveling in a certain direction;
A blower for blowing cooling gas into the troughs from below the multiple troughs;
An annular hood covering the top of the multiple troughs;
A sinter ore charging section for sequentially introducing high-temperature sinter into the multiple troughs;
An exhaust section that is disposed on the rear side in the trough travel direction with respect to the sintered ore charging portion and discharges the sintered ore in the trough that has been cooled.
A region on the front side in the trough traveling direction from the sintered ore charging portion where high-temperature exhaust gas is generated is defined as an exhaust heat recovery zone, and a water seal portion is provided between the hood and the trough in the exhaust heat recovery zone. Keep airtight with
A sinter ore cooler characterized in that a region up to the exhausting part excluding the exhaust heat recovery zone is used as a cooling zone, and a space between the hood and the trough is not airtight.   The water seal portion is provided at both edges in the width direction of the hood and stores water, and falls from both edges in the width direction of the multiple troughs, and is immersed in the water in the water storage portion. The sintered ore cooler according to claim 1, further comprising a sealing member that is provided. A water seal release portion for pulling up the seal member from the water is provided on the front side in the trough traveling direction from the end of the water seal portion,
Between the water seal release part and the draining part, a release attitude holding part that holds the attitude of the seal member pulled up from the water is provided,
The sintered ore cooler according to claim 2, further comprising a water seal return portion for immersing the seal member in the water from a start side of the water seal portion to a rear side in the trough traveling direction. The seal member is a plate-like elastic member,
The water seal release portion gradually takes a lateral posture from a posture in which the seal member hangs down,
The release posture holding unit holds a horizontal posture of the seal member,
The sinter cooler according to claim 3, wherein the water seal return portion has a posture in which the seal member is gradually hung from a horizontal posture. The seal member is a bellows-shaped elastic member,
The water seal release portion has a posture gradually contracted from a posture in which the seal member is hung,
The release posture holding unit holds the contracted posture of the seal member,
The sinter cooler according to claim 3, wherein the water seal return portion has a posture that gradually drops from a posture in which the seal member is contracted.   The sintered ore according to claim 4 or 5, wherein each of the water seal part, the water seal release part, and the water seal return part is provided with a water storage layer that communicates with each other and stores the water. Cooling machine.

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