JPH0744954Y2 - Air seal device for sinter cooler - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing device for cooling air of a sinter cooler.

[0002]

2. Description of the Related Art As shown in FIGS. 3 and 4, for example, a sinter ore cooler has a plurality of sinter ore supplied from an ore feeding section 1 connected along a circular movement path L. When the trough 2 is placed on a movable trough 2 and the trough 2 travels on a guide rail 4 via traveling wheels 3 and is moving along a moving path L, the trough 2 is supplied from an air chamber 5 arranged below the moving path L. The sinter ore is cooled by the cooling air C and is discharged from the discharge ore unit 6. An exhaust hood 14 is arranged above the trough 2 so as to correspond to the air chamber 5. In this sinter cooler, the air chamber 5
The seal portion 7 of the cooling air C supplied from the air chamber 5 to the trough 2 between the trough 2 and the trough 2 is a trough disposed along the movement path L at the bottom of the trough 2 as shown in FIG. 5, for example. A horizontal sliding contact plate 9 protruding outward on the side plate 8;
A trough rubber seal plate 10 hanging downward is provided, while a chamber rubber seal plate 12 that is in sliding contact with the upper surface of the horizontal sliding contact plate 9 is provided on the lower side air chamber side wall 11.
And a sliding contact rod 13 having a circular cross section that slidably contacts the outer surface of the trough rubber seal plate 10.

[0003]

However, since the seal portion 6 is a combination of the rubber seal plates 10 and 12 and the sliding contact members (horizontal sliding contact plate 9 and sliding contact rod 13) which are in sliding contact with the rubber sealing plates 10 and 12, the sealing ability is high. There is a problem that the cooling air C easily leaks due to a low gap, for example, due to vibration of the trough 2, thermal deformation of the member, or deterioration of the member. If the cooling air C leaks from the seal portion 6, the cooling capacity of the cooler decreases.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and provide an air seal device for a sinter cooler capable of reliably preventing cooling air from leaking.

[0005]

In order to solve the above problems, an air seal device for a sinter cooler according to the present invention has a seal plate vertically installed at one of a trough bottom and an air chamber upper end.
With the a seal portion sliding member is provided which is in sliding contact with the outer surface of the sealing plate to the other, provided on the left and right sides along the trough movement path, the upper portion of the air chamber, shea
Air is blown upward from below toward the inner surface of the roll plate.
The seal plate is pressed against the sliding contact member, and an air nozzle for forming an air curtain is provided inside the seal plate .

[0006]

According to the above structure, even if a gap is created between the seal plate and the sliding contact member, the air blown out from the air nozzle is
The seal plate is pressed against the sliding contact member and slides against the seal plate.
It is possible to eliminate the gap between the contact members, and by the air curtain formed by the air blown from the air nozzle,
Since a negative pressure is applied to the inside of the seal portion from the outside, the outflow of the cooling air sent from the air chamber to the trough can be prevented. Moreover, since the seal part is cooled by the air blown from the air nozzle, the seal plate and the sliding contact part are cooled .
It is possible to prevent the material from being thermally deformed or deteriorated by heat, and it is possible to improve the sealing property of the seal portion.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an air seal device for a sinter ore cooler according to the present invention will be described below with reference to FIGS. The same members as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted.

Reference numeral 21 is a sealing air pipe provided in the upper portion of the left and right air chamber side walls 11 via a pipe receiving material 22, and is arranged over the entire movement path L of the arrangement portion of the air chamber 5. The sealing air tube 21 has a trough rubber seal plate 1 suspended from the trough 2 of the seal portion 6.
A slit-shaped air nozzle 23 for injecting the sealing air A from an obliquely lower side toward the middle portion of 0 is provided.

In the above structure, the trough rubber seal plate 10 is exposed to the outside by the sealing air A blown from the sealing air pipe 21 to the sealing portion 7 through the air nozzle 23.
And the cooling air C supplied from the air chamber 5 is entrained to form an air curtain B covering the entire inside of the seal portion 7. The pressure in the air curtain B forming basin is lower than the pressure outside the air chamber 5. Of course, this sealing air A is used as cooling air for the sinter.

Therefore, even if a gap occurs between the trough rubber seal plate 10 and the sliding contact rod 13 or between the chamber rubber seal plate 12 and the horizontal sliding contact plate 9, the air nozzle 23
A seal that is blown onto the inner surface of the trough rubber seal plate 10.
The trough rubber seal plate 10 is slidably contacted by the use air A.
It is prevented from being pressed against 13 and creating a gap.
Further, the air curtain B prevents the cooling air C in the air chamber 5 from leaking to the outside through the gap. Further, due to the sealing air A and the cooling air C entrained therein,
Trough rubber seal plate 10 of the seal portion 7, sliding contact rod 1
3, the horizontal sliding contact plate 9 and the chamber rubber seal plate 12 are positively cooled, and in particular, each of the seal part 7 heated in the part of the ore discharge part 6 and the ore supply part 1 not exposed to the cooling air C. The member can be cooled effectively. Therefore, deformation and deterioration due to heat can be prevented in advance, and the sealing performance can be further improved.
The life of each member can be extended.

[0011]

As described above, according to the air seal device of the sinter ore cooler of the present invention, even if there is a gap between the seal plate and the sliding contact member, the air nozzle will not contact the inner surface of the seal plate.
The air blown pushes the sealing plate against the sliding contact member.
Prevents a gap between the seal plate and the sliding contact member when attached
Further, since the air curtain formed by the air blown out from the air nozzle makes the inside of the seal portion a negative pressure from the outside, it is possible to reliably prevent the outflow of the cooling air sent from the air chamber to the trough. . Moreover, since the seal portion is cooled by the air blown from the air nozzle, it is possible to prevent thermal deformation and deterioration of the seal plate and the sliding contact member due to heat, thereby improving the sealability of the seal portion. You can

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional view showing an embodiment of an air seal device for a sinter cooler according to the present invention.

FIG. 2 is a cross-sectional view of a trough showing the air seal device.

FIG. 3 is a schematic plan view showing a conventional sinter cooler.

4 is a cross-sectional view taken along the line I-I shown in FIG.

FIG. 5 is an enlarged cross-sectional view showing a conventional air seal device.

[Explanation of symbols]

 2 Trough 5 Air chamber 7 Seal part 8 Trough side plate 9 Horizontal sliding contact plate 10 Trough rubber sealing plate 11 Air chamber side wall 12 Chamber rubber sealing plate 13 Sliding contact rod 21 Sealing air pipe 22 Pipe receiving material 23 Air nozzle A Sealing air B Air curtain C Cooling air L Moving path

Claims (1)

[Scope of utility model registration request] 1. A seal portion, in which a seal plate is vertically provided on one of a trough bottom portion and an air chamber upper end portion, and the other is provided with a slide contact member which is in sliding contact with an outer surface of the seal plate,
It is provided on both the left and right sides along the trough movement path, and blows air from the lower side to the upper side toward the inner surface of the seal plate in the upper part of the air chamber, and presses the seal plate against the sliding contact member.
At the same time, an air nozzle for forming an air curtain is provided inside the seal plate to provide an air seal device for a sinter cooler.