JP2000310489A - Air feeder and high temperature granule cooling device therewith - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the flapping phenomenon or scatter of sealing water, a trouble or the deterioration of a sealing property by providing an auxiliary air blowing means for decreasing the flowing speed of air due to a pressure reduction in the inner water seal chamber space parts of an inner peripheral annular water seal chamber, and an outer periphery annular water seal chamber in a pressure reducing part. SOLUTION: In an air feeder having a fixed side annular air duct 31 which can be movably fitted to a movable side annular air duct through a water seal device 28, a pressure reducing part in which air of a conveying member leaks is provided in the prescribed position of a moving path. The water seal device 28 is provided with water seal plates 34A and 34B, whose lower ends are immersed in seal water in an inner peripheral annular water seal chamber and an outer peripheral annular water seal chamber formed in one of the movable side annular air duct, and the fixed side annular air duct 31 and the inner peripheral annular water seal chamber and the outer peripheral annular water seal chamber formed in the other of the movable side air duct and the fixed side annular air duct 31. In the pressure reducing part, auxiliary air blowing means 61A and 61B for blowing auxiliary air for lowering the air flowing speed due to pressure reduction are provided in the inner water seal chamber spaces 24i of the inner peripheral annular water seal chamber and the outer peripheral annular water seal chamber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air supply device for supplying air to a carrier moving on a circular moving path, and a high-temperature granular material such as a sintered ore, a pellet or a high-temperature clinker provided with the air supply device. The present invention relates to a high-temperature granular material cooling facility that is mounted on a carrier and cooled.

[0002]

2. Description of the Related Art A sinter cooling system is, for example, a method in which sinter, which is a high-temperature particulate material, is placed on a trough, which is a carrier, and moved along a circular moving path from below to above the trough. The sinter is cooled by flowing cooling air. Conventionally, as this type of cooling device, there is one disclosed in, for example, Japanese Patent Laid-Open No. 6-257955.

That is, in this cooling device, a plurality of troughs on which sinter is placed on the upper surface are circularly connected to the inner peripheral side along the circular path and the bottom of the circular side wall on the inner peripheral side so as to be movable. , A carrier is configured. A cooling air supply device for supplying cooling air into a wind box provided at the bottom of the trough is provided. In this cooling air supply device, a fixed-side annular duct is disposed along the circular path, for example, on the inner peripheral side, and a movable-side annular air duct connected to an air box of a trough via an intermediate air duct is provided with a water sealing device. The cooling air is supplied from the fixed annular duct to the air box of each trough via the movable annular air duct and the intermediate duct.

This water sealing device has an inner annular water sealing chamber and an outer annular water sealing chamber formed in the movable annular air duct, and the fixed annular air duct has the inner annular water sealing chamber and the inner annular water sealing chamber. And a water seal plate whose lower end is immersed in the seal water in the outer annular water seal chamber.

[0005]

However, in the above configuration, since the cooling air pressure in the wind box and the movable-side annular air duct is as high as 500 mmAq, the mining part where the bottom of the trough is opened and the top of the trough are separated. In the open mining section,
Cooling air leaks out. Thus, in the water seal device, the cooling air flows from the annular water seal room of the peripheral cooling unit into the annular water seal room of the supply / discharge mining unit at a strong momentum in the inner annular water seal room. Then, the water surface undulates in this annular water seal room,
Water droplets scatter and adhere to the walls and troughs of the supply and discharge section. Then, the dust of the sinter ore adheres to the water droplets, solidifies and grows, which may cause trouble and hinder normal operation. In addition, the dust mixed with water droplets adheres to a seal portion between the main body portion and the movable bottom portion of the trough trolley, thereby impairing the sealing performance and causing air leakage.

The present invention solves the above problems, and can prevent the generation and scattering of sealing water in the water sealing device even if air flows in the decompression section, thereby preventing trouble and sealing performance. It is an object of the present invention to provide an air supply device capable of preventing deterioration of the temperature and a high-temperature granular material cooling facility provided with the air supply device.

[0007]

According to a first aspect of the present invention, there is provided an image forming apparatus, comprising: a plurality of transport members movably arranged along a circular moving path; A movable-side annular air duct which is arranged and connected to the carrier via an intermediate air duct, and a fixed side which is arranged along a movement path and is movably fitted to the movable-side annular air duct via a water sealing device. In an air supply device provided with an annular air duct, a decompression unit is provided at a predetermined position of the moving path to allow air in the carrier to leak, and the water sealing device is formed on one of a movable annular air duct and a fixed annular air duct. The lower end of the seal water in the inner peripheral annular water seal chamber and the outer peripheral annular water seal chamber is provided in the other of the movable-side annular air duct and the fixed-side annular air duct. And a water seal seal plate in which the air is submerged. In the decompression unit, an auxiliary air for reducing the flow speed of the air due to the decompression is provided to the inner annular water seal chamber and the inner water seal chamber space of the outer annular water seal chamber. An auxiliary air blowing means for blowing is provided.

According to the above construction, even if the cooling air in the transporting body flows out in the pressure reducing section and the air pressure is reduced, supplementary air is blown into the inner water sealing chamber space from the auxiliary air blowing means. The velocity of the flowing air flowing toward the decompression unit in the water sealing chamber space is reduced, and the sealing water in the water sealing chamber can be suppressed from waving, thereby preventing the sealing water from scattering. Therefore, it is possible to prevent troubles and poor sealing caused by adhesion of dust due to scattering of sealing water.

According to a second aspect of the present invention, there are provided a plurality of transporters movably arranged along a circular movement path;
A movable annular air duct arranged along the movement path and connected to the carrier via an intermediate air duct; and a movable annular air duct arranged along the movement path and movably fitted to the movable annular air duct via a water seal device. In an air supply device having a fixed-side annular air duct to be combined, a decompression unit is provided in which air in the transport body leaks at a predetermined position of the moving path,
The water sealing device is provided on the other of the movable annular air duct and the fixed annular air duct, the inner annular annular water seal chamber and the outer annular annular water seal chamber formed on one of the movable annular air duct and the fixed annular annular air duct. A water seal plate whose lower end is immersed in the seal water in the inner annular water seal chamber and the outer annular water seal chamber is provided, and the inner water is sealed in the inner annular water seal chamber and the outer annular water seal chamber of the water seal device. In the sealed chamber space, a sliding contact seal plate whose leading end was in sliding contact with the movable-side annular water seal chamber surface or the water seal seal plate was attached to the fixed side water seal seal plate or the annular water seal chamber surface across the decompression section. Things.

According to the above configuration, the sliding contact seal plate allows
Since the amount of air flowing out from the inner water sealing chamber space toward the transport body can be reduced in the decompression unit, the speed of the flowing air flowing from the cooling unit to the decompression unit side in the water sealing room space is reduced. This can prevent the seal water from waving and scattering.

According to a third aspect of the present invention, there are provided a plurality of transporters movably arranged along a circular movement path;
A movable annular air duct arranged along the movement path and connected to the carrier via an intermediate air duct; and a movable annular air duct arranged along the movement path and movably fitted to the movable annular air duct via a water seal device. In the air supply equipment comprising a fixed-side annular air duct that is combined, and provided with a decompression unit in which air in the carrier leaks at a predetermined position of the moving path,
In one of the movable-side annular air duct and the fixed-side annular air duct, an inner peripheral annular water seal chamber and an outer peripheral annular water seal chamber are formed, and the other side seal water in the inner peripheral annular water seal chamber and the outer peripheral annular water seal chamber is formed. The water seal device is provided by providing a water seal plate whose lower end is immersed, and the inner and outer water seal chambers at the inlet and the outlet of the decompression unit are formed in the inner water seal chamber space. A partition sliding contact plate that is attached to the inner surface of the fixed-side water seal chamber and whose leading end is in sliding contact with the movable-side water seal seal plate, or that is attached to the fixed-side water seal seal plate and has a distal end that is movable. Is provided so that the lower end portion is submerged in the sealing water.

According to the above construction, the inner water sealing chamber space is separated from the cooling part side and the pressure reducing part side by the partition sliding contact plate at the inlet and the outlet of the pressure reducing part. Even if this is done, air does not flow from the inner water seal chamber space of the cooling unit to the inner water seal chamber space of the decompression unit, and therefore, the scattering of seal water due to the air flow is reliably prevented.

Further, the invention described in claim 6 is the first invention.
3. A high-temperature granular material cooling facility provided with the air supply device according to any one of the above items 3, wherein the carrier is configured to remove the high-temperature granular material at the bottoms of the circular side walls provided on the inner side and the outer side. The air supplied to the carrier is constituted by a plurality of troughs to be mounted, and the air supplied to the carrier is cooling air for cooling the hot granules mounted on the trough, and the decompression unit supplies the hot granules to the trough. Section and a mining section for inclining the trough and dropping and discharging the hot granules.

[0014] According to the above configuration, the cooling air leaking from the ore supply section and the ore discharge section can reliably prevent the waving phenomenon and scattering of the seal water caused by the flowing air in the inner water sealing chamber space. It is possible to provide a high-performance high-temperature powder cooling equipment.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a high-temperature powder cooling apparatus according to the present invention will be described below with reference to FIGS.
With reference to FIGS. 1 to 5, the basic configuration of the high-temperature powder cooling equipment will be described. In the drawing, reference numeral 1 denotes a carrier movably disposed along a circular movement path A, which discharges sintered ore, which is a high-temperature granular material, from an ore supplying section (decompression section) 8 through a cooling section C. While moving to the ore section (decompression section) 9, the sinter is cooled by cooling air.

The transport body 1 includes a plurality of troughs 7 movably disposed on a pair of left and right guide rails 6A laid along a movement path A via guide wheels 5A and connected to each other.
And an inner circular side wall 3 and an outer circular side wall 4 having side wheels 5B connected to each other by a connecting beam 2 and arranged on a trough 7 and guided by a side rail 6B. As shown in FIG. 3, each trough 7 is connected to the circular side walls 3, 4 at the front thereof so as to be tiltable downward around the horizontal axis.
When A is displaced downward, the trough 7 is inclined downward via the guide wheel 5A, and the mounted sinter can be discharged downward.

Each of the troughs 7 has a guide wheel 5
A trough body 11 having an A and a wind box 12 provided at the bottom of the trough body 11, and a ventilation plate 13 having a large number of ventilation holes formed on the upper surface of the wind box 12 are arranged. The wind box 12 has, for example, an inner circular side wall 3.
The opening 14 is provided in the lower part of the. As shown in FIGS. 4 and 5, a movable-side annular air duct 21 having an open upper surface along a circular movement path A is provided on the inner circular side wall 3 of the transport body 1. The movable-side annular air duct 21 communicates with an intermediate air duct 26 connected to the opening 14. The movable-side annular air duct 21 has an inner side wall portion 22 and an outer side wall portion 23 formed of inner plates 22a, 23a and an outer plate 22.
b and 23b are formed into a double-walled structure, and the inner annular water seal chamber 24A and the outer annular water seal chamber 24 each having an open upper surface.
B are formed respectively. An annular movable air passage 25 is formed between the inner side wall portion 22 and the outer side wall portion 23 of the movable side annular air duct 21.

A fixed-side annular air duct 31 which covers the entire upper portion of the movable-side annular air duct 21 and forms an annular fixed-side air passage 30 communicating with the movable-side air passage 25 is provided. Air duct 31
The top plate 40 and the side wall portions 32 and 33 are formed in a U-shaped cross section with the lower surface opened, and the top plate 40 of the cooling unit C is provided with an arcuate air shown in FIGS. Header 3
9, a plurality of intermediate air ducts 38 (38o, 38i) are connected to supply cooling air to the fixed-side air passage 30.

The fixed-side annular air duct 31 and the movable-side annular air duct 21 are connected via a water sealing device 28. The water sealing device 28 includes the inner peripheral annular water sealing chamber 24A and the outer peripheral annular water duct. From the sealed chamber 24B and both side wall portions 32, 33 of the fixed-side annular air duct 31, the mounting flange 3
5, a water seal plate 34, which is suspended in the annular water seal chambers 24 </ b> A and 24 </ b> B on both sides so that the lower end is immersed below the water surface.
A, 34B. 36A and 36B are annular water seal chambers 2 on the upper outer side of the respective water seal seal plates 34A and 34B.
It is a cover plate protruded so as to cover the outside of 4A and 24B.

A dead plate 42 is attached to the fixed-side annular air duct 31 via an expansion joint 41 at a portion other than a connection portion of the intermediate air duct 38, while an upper end is provided at an upper end of the inner plate 22a and an outer plate 23a. Rabbit seal plate 43 close to dead plate 42
A and 43B are attached to provide a radiance seal. In addition, the intermediate air duct 38 is not connected to the ore supply part 8 and the ore discharge part 9.

On the upper side of the moving path A, the inner and outer fixed side plates 51a and 51b disposed at the upper ends of the inner and outer circular side walls 23 and 24 via a sealing device, and the inner and outer fixed side plates 51
A fixed hood 51 composed of a fixed top plate 51c connecting the upper and lower portions 51a and 51b at the upper end is arranged, and an exhaust duct 52 is connected to a predetermined position of the fixed hood 51. By the way, in the ore supplying unit 8 and the ore discharging unit 9 in the middle of the moving route A, the wind box 12 of the trough 7 is in an open state communicating with the atmosphere via the ore supplying device and the ore discharging device, and the cooling air flows out. You.
At this time, the water sealing seal plates 34 of the annular water sealing chambers 24A and 24B.
A, upper space 2 of the water sealing chamber on the movable air passage 25 side of 34B
At 4i and 24i, the seal water is entrained and scattered by the air flowing to the feed / discharge portions 8 and 9.

In the present invention, the following measures are taken in order to prevent the trouble caused by the scattering of the seal water. . The movable-side air passage 25 is provided by the supply / discharge sections 8 and 9 which are pressure reducing sections.
Compressed air (auxiliary air) is replenished into the upper space 24i, 24i of the water seal chamber on the side. (FIGS. 6 to 9). Movable air passage 2 from mining section 9 to mining section 8
The seal water upper surfaces of the water seal chamber upper spaces 24i, 24i on the fifth side are covered with sliding contact seal plates 44A, 44B. (FIG. 10). At least the inlet of the mining unit 9 and the outlet of the mining unit 8 are provided with the water seal chamber upper space 24i, 2 on the movable air passage 25 side.
4i, a partition slide contact plate 71A whose lower end is submerged in seal water,
The cooling unit C and the supply / discharge mining units 8 and 9 are partitioned by providing 71B. (FIGS. 11 to 14) Any one of these seal water scattering prevention means may be installed alone, or two of the seal water may be combined, or all of them may be combined.

First, the seal water scattering prevention means is shown in FIG.
This will be described with reference to FIGS. An inlet-side branch duct (auxiliary air supply means) 61A is connected and branched to the intermediate air duct 38o at the outlet end of the cooling section C, and the inlet-side branch duct 61a.
A shutter plate damper 62A, which is a flow rate adjusting means, is interposed in the middle of A, and the leading end is connected to the top plate portion 40 of the fixed-side annular air duct 31 at the entrance of the mining portion 9.
Further, an outlet side branch duct (auxiliary air supply means) 61B is connected and branched to the intermediate air duct 38i at the inlet end of the cooling section C, and a shutter plate type damper 62A which is a flow rate adjusting means is provided in the outlet side branch duct 61B. The fixed side annular air duct 3 is interposed and has a tip end at the outlet of the mining part 8.
1 is connected to the top plate 39. The auxiliary air supplied from these branch ducts 61A and 61B is supplied to the dead plate 4 from between the expansion joints 41 arranged at intervals.
2 through the both sides of the inner water sealing chamber upper space 24i, 24
i.

In the above embodiment, the supply / discharge unit 8,
Although the branch ducts 61A and 61B are connected to the inlet and the outlet of 9, an auxiliary air supply duct 62C may be connected to an intermediate portion between the mining section 9 and the mining section 8 as shown in FIG. Although the cooling air of the intermediate air duct 38 is used as the auxiliary air, the auxiliary air pump units 64 may be installed respectively.
1, the auxiliary air supply means may be constituted by an air supply duct 62C and an auxiliary air pump unit 64.

A modification of the auxiliary air supply means will be described with reference to FIG. That is, in the ore supply section 8 and the ore removal section 9, the inlet of the ore supply section 9 and the exit of the ore supply and discharge section 8 are assumed to alleviate the flowing air flowing from the cooling section C to the supply and discharge section 8, 9 side. Auxiliary air supply pipes 45A, 45B for replenishing compressed air (auxiliary air) to the water seal chamber upper spaces 24i, 24i.
Are provided respectively, and these auxiliary air supply pipes 45A, 4A are provided.
5B, a flow control valve 46 as flow control means is interposed. These auxiliary air supply pipes 45A, 45B
Although not shown, auxiliary air is supplied from the same air pump unit for supplying cooling air or another air pump unit for supplying auxiliary air.

Therefore, these auxiliary air supply pipes 45
The speed of the air flowing to the supply / discharge portions 8 and 9 in the water seal chamber upper spaces 24i and 24i can be greatly reduced by the auxiliary air supplied from the A and 45B, thereby preventing the seal water from scattering. be able to. Next, seal water scattering prevention means will be described with reference to FIG. In the upper part of the water seal chamber upper spaces 24i, 24i on the movable side air passage 25 side, the fixed side water seal seal plates 34A, 34B are slidably contacted with each other over the mining part 9, the mining part 8, and the front and rear portions thereof. Board 4
4A and 44B are attached, and the water seal plate 34
The distal ends of A and 34B are in sliding contact with the inner surfaces of the inner plates 22a and 23a, respectively.

Thus, the sealing effect of the labyrinth seal plates 43A and 43B is enhanced in the mining section 9 and the mining section 8, and the movable air passage 25 and the upper spaces 24i and 24 of the water sealing chamber are provided.
The sealing property with i is improved. Thereby, the flow velocity of the air flowing toward the supply / discharge portions 8 and 9 in the water seal chamber upper spaces 24i and 24i can be largely suppressed, and the scattering of the seal water can be prevented.

Further, the seal water scattering prevention means will be described with reference to FIGS. As shown in FIG. 11, the inlet of the ore discharging section 9 and the outlet of the ore supplying section 8 are provided with inner water sealing chamber spaces 24i and 24i of the inner annular water sealing chamber 24A and the outer annular water sealing chamber 24B, respectively. Partition sliding contact plates 71A and 71B are respectively attached to the water sealing seal plates 34A and 34B on the fixed side. These partition slide contact plates 71A, 71
In B, the leading ends of the partition slide contact plates 71A and 71B are formed in the water sealing chamber 2.
4A and 24B are in sliding contact with the inner surfaces of the inner plates 22a and 23a, and the lower portions are respectively submerged in seal water.

The partition slide contact plates 71A and 71B are shown in FIG.
3, as shown in FIG. 14, the water seal plates 34A, 34B
And a sliding contact plate main body 73 which is attached to the water sealing chambers 24A and 24B at a position inclined downstream in the turning direction of the water sealing chambers 24A and 24B by the mounting member 72.
These sliding contact plate bodies 73 are provided with a rubber plate 73a on the surface.
And a comb-shaped spring plate 73 attached to the back of the rubber plate.
b, and smoothly follows the fluctuation of the interval (width of the water sealing chamber) between the water sealing seal plates 34A, 34B and the inner surfaces of the inner plates 22a, 23a, and the sealing property is improved.

The partition slide contact plates 71A and 71B provide
Water sealing chamber space portions 24i, 24 inside the water sealing chambers 24A, 24B.
Since i is separated into the cooling section C side and the supply and discharge section 8, 9 side, even if the pressure of the supply and discharge section 8, 9 side to be reduced is low,
Air is not moved from the cooling unit C side to the supply / discharge mining unit 8, 9 side in the inner water sealing chamber space portions 24i, 24i. Therefore, the sealing water is not scattered by the flowing air.

The seal water scattering prevention means of the water sealing chambers 24A and 24B may be installed independently, but depending on the circumstances, two of the three may be combined, or three may be combined. You may. In such a combination, the branch duct 61 of the seal water scattering prevention means
A, 61B and the sliding contact seal plates 44A, 44B are provided in the water sealing chamber upper spaces 24i, 24i corresponding to the supply / discharge mining units 8, 9, respectively.
Branch ducts 61
It is desirable to supply auxiliary air by opening A and 61B. In the case of the auxiliary air supply pipes 45A and 45B, it is necessary to open the auxiliary air supply pipes above the sliding contact seal plates 44A and 44B. Branch ducts 61A, 61 of seal water scattering prevention means
In the case of the partition sliding contact plates 71A, 71B with B, it is necessary to connect branch ducts 61A, 61B to the supply / discharge portions 8, 9 from the partition sliding contact plates 71A, 71B to supply auxiliary air. Further, a sliding contact seal plate 4 for sealing water scattering prevention means.
In the case of partition sliding contact plates 71A and 71B with 4A and 44B, sliding contact seal plates 44A and 44B are provided on the supply and discharge portions 8 and 9 sides of the partition sliding contact plates 71A and 71B. Even when all of the seal water scattering prevention means are combined, it is necessary to arrange them in the same manner as described above.

Next, the operation of the sinter cooling equipment will be described. In the cooling section C of the moving path A, the cooling air supplied from the intermediate air duct 38 into the fixed air passage 30 of the fixed annular air duct 31 is supplied to the water sealing device 28.
From the movable-side annular air duct 21 having an air flow into the wind box 12 of each trough 7 through the intermediate air duct 26, and cools the sinter on the trough 7 through the ventilation plate 13, from the upper fixed hood 51. Is discharged.

When the trough 7 moves from the mining section 9 to the mining section 8, cooling air leaks to the atmosphere side through the mining apparatus and the mining apparatus, and cooling air flows from the cooling section C to the mining section 9. And it flows to the mining part 8 side. At this time, in the water sealing device 28, by any of the seal water scattering prevention means 1 or a combination thereof, the seal water is undulated by the flowing air in the inner upper spaces 24i, 24i of the inner and outer peripheral annular water sealing chambers 24A, 24B. In addition to preventing the phenomenon, the occurrence of troubles due to the adhesion of dust due to the scattering of the seal water and the failure of the seal are prevented beforehand.

That is, according to the seal water scattering prevention means, the branch ducts 61A, 61B or the auxiliary air supply pipe 4
5A, 45B to the inner and outer annular water sealing chambers 24A, 24B
Is supplied to the inner upper spaces 24i, 24i, the pressure difference between the cooling section C side and the supply / discharge mining sections 8, 9 in the upper spaces 24i, 24i is reduced, and the velocity of the flowing air is reduced. Of the sealing water due to the flowing air is prevented.

In the seal water scattering preventing means, the inner upper and lower spaces 24i, 24i of the inner and outer annular water sealing chambers 24A, 24B are provided.
By the sliding contact seal plates 44A, 44B disposed at i, the amount of air flowing from the inner upper spaces 24i, 24i into the movable side ventilation passage 25 can be reduced, and the waving phenomenon of the seal water can be prevented. Therefore, a failure due to adhesion of dust due to scattering of seal water and a defective seal are prevented beforehand.

Further, in the seal water scattering prevention means, the inner upper and lower spaces 24i, 24i of the inner and outer annular water sealing chambers 24A, 24B are provided.
The inner water sealing chamber space 24 is formed by sliding contact seal plates 44A and 44B disposed at the inlet and outlet of the feed / discharge portions 8 and 9 of the 4i.
i, 24i are separated into the cooling section C side and the supply and discharge section 8, 9 side, and even if the pressure of the supply and discharge section 8, 9 side to be reduced is low, the supply and discharge section 8, The air is not moved to the side 9 and the scattering of the seal water due to the flowing air is prevented.

FIGS. 15 and 16 show another embodiment. In the previous embodiment, the cooling air was supplied from above by the intermediate air duct 38, but in this embodiment, the cooling air was supplied from below. That is, in this embodiment, the water sealing device 2 is attached to the fixed-side annular air duct 31.
8 water sealing chambers 24A, 24B are provided, and water sealing seal plates 34A, 34B are provided on the movable-side annular air duct 21 on the trough 7 side.
Are provided, and in the water sealing device 28, the arrangement of the members on the fixed side and the movable side is reversed, but the others are the same structure,
The same reference numerals are given and the description is omitted.

Here, the feed / discharge sections 8, 9 which are pressure reducing sections.
And a sliding contact seal plate 44A disposed around
44B is provided so as to be attached to the inner plates 22a and 23a and to be in sliding contact with the water seal plates 34A and 34B. The auxiliary air supply pipes 45A, 45B also pass through the inner plates 22a, 23a from the supply-side air passage 30, and the inner upper spaces 24i, 24i of the inner and outer annular water sealing chambers 24A, 24B.
24 i is configured to blow high-pressure air. further,
Water sealing chamber space portions 24i, 24 inside the water sealing chambers 24A, 24B.
i, the partition sliding contact plates 71A, 71B are respectively attached to the inner plates 22a, 23a of the water sealing chambers 24A, 24B on the fixed side.
Is mounted, and the distal end of the water seal plate 34 is movable.
A and 34B.

In this embodiment, the same operation and effect as the previous embodiment can be obtained.

[0040]

As described above, according to the first aspect of the present invention, even if the air pressure in the transport body is reduced by the pressure reducing unit,
Since supplementary air is blown from the auxiliary air supply pipe into the inside of the water seal chamber, the velocity of the flowing air flowing to the decompression section side in the water seal chamber is reduced, and the sealing water in the water seal chamber undulates. Can be suppressed, and scattering of the seal water can be prevented. Therefore, it is possible to prevent troubles and poor sealing caused by adhesion of dust due to scattering of sealing water.

According to the second aspect of the present invention, the amount of air flowing into the transport body from the inner water sealing chamber space can be reduced by the sliding contact seal plate. Can be further reduced to reliably prevent the waving phenomenon and scattering of the seal water.

According to the third aspect of the present invention, the inner water sealing chamber space is separated from the cooling unit side and the pressure reducing unit side by the partition sliding contact plate at the inlet and the outlet of the pressure reducing unit. Even if the pressure is reduced by the decompression unit, the air does not flow from the inner water seal chamber space of the cooling unit to the inner water seal chamber space of the decompression unit, and therefore, the scattering of the seal water due to the air flow is reliably prevented. You.

Further, according to the invention of claim 6, even if there is cooling air leaking from the ore supply section and the ore discharge section, the seal water wave generated by the flowing air by the supplementary air blown from the auxiliary air supply pipe. A hitting phenomenon and scattering can be surely prevented, and a high-performance high-temperature powder cooling equipment can be provided.

[Brief description of the drawings]

FIG. 1 is an overall plan view showing an embodiment of a high-temperature granular material cooling facility according to the present invention.

FIG. 2 is a cross-sectional view of a main part of the cooling facility.

FIG. 3 is a front view showing an ore supplying section and an ore discharging section of the cooling facility.

FIG. 4 is an enlarged sectional view of a main part showing a water seal device of a mining supply part of the cooling facility.

FIG. 5 is an enlarged cross-sectional view showing a water sealing device in a cooling section of the cooling facility.

FIG. 6 is an enlarged cross-sectional view showing a branch duct provided in the water sealing device.

FIG. 7 is a plan view showing an inlet-side branch duct provided in the water sealing device.

FIG. 8 is a plan view showing an outlet-side branch duct provided in the water sealing device.

FIG. 9 is an enlarged cross-sectional view showing an auxiliary air supply pipe provided in the water sealing device.

FIG. 10 is an enlarged cross-sectional view showing a sliding contact seal plate provided in the water sealing device.

FIG. 11 is a partial plan view showing an arrangement of a partition sliding contact plate provided in the water sealing device.

FIG. 12 is an enlarged cross-sectional view showing a partition sliding contact plate provided in the water sealing device.

FIG. 13 is an enlarged plan view of the partition slide contact plate.

FIG. 14 is an enlarged rear view of the partition sliding contact plate.

FIG. 15 is a cross-sectional view of a main part showing another embodiment of the high-temperature powder cooling equipment according to the present invention.

FIG. 16 is an enlarged cross-sectional view showing a water sealing device of the cooling facility.

[Explanation of symbols]

 A Moving path 1 Carrier 7 Trough 8 Mineral supply unit 9 Mineral discharge unit 11 Trough body 12 Wind box 14 Opening 21 Movable annular air duct 22a Inner plate 23a Inner plate 24A Inner annular water sealing chamber 24B Outer annular water sealing chamber 24i Water seal room space 25 Movable air passage 26 Intermediate air duct 28 Water seal device 30 Fixed air passage 31 Fixed annular air duct 34A, 34B Water seal seal plate 38 Intermediate air duct 43A, 43B Labyrinth seal plate 44A, 44B Sliding contact seal plate 45A, 45B Auxiliary air supply pipe 61A, 61B Branch duct 62A, 62B Shutter plate type damper 71A, 71B Partition sliding contact plate

Continuation of the front page (72) Inventor Tadaaki Sumoto 1-7-89 Minami Kohoku, Suminoe-ku, Osaka-shi, Osaka Inside Hitachi Zosen Corporation

Claims (6)

[Claims] 1. A plurality of conveying bodies movably arranged along a circular moving path, and a movable annular air duct arranged along the moving path and connected to the conveying body via an intermediate air duct. And a fixed-side annular air duct that is disposed along a movement path and is movably fitted to the movable-side annular air duct via a water seal device. A water-reducing device, wherein the water-sealing device includes an inner annular water-sealing chamber and an outer annular water-sealing chamber formed on one of the movable-side annular air duct and the fixed-side annular air duct; and the movable-side annular air duct. And a water-sealing seal plate provided at the other of the fixed-side annular air duct and having a lower end immersed in the sealing water in the inner peripheral annular water sealing chamber and the outer peripheral annular water sealing chamber. The inner water seal chamber space of the water seal chamber and the outer annular water seal chamber, vacuum air supply device, characterized in that are provided blown auxiliary air blowing means an auxiliary air for reducing the flow rate of air by. 2. A plurality of transport bodies movably arranged along a circular moving path, and a movable annular air duct arranged along the moving path and connected to the transport body via an intermediate air duct. And a fixed-side annular air duct that is disposed along a movement path and is movably fitted to the movable-side annular air duct via a water seal device. A water-reducing device, wherein the water-sealing device includes an inner annular water-sealing chamber and an outer annular water-sealing chamber formed on one of the movable-side annular air duct and the fixed-side annular air duct; and the movable-side annular air duct. And a water-sealing seal plate provided at the other of the fixed-side annular air duct and having a lower end immersed in the sealing water in the inner peripheral annular water sealing chamber and the outer peripheral annular water sealing chamber. In the inner and outer ring-shaped water seal chambers, the front end portion is in sliding contact with the fixed-side water seal seal plate or the inner surface of the ring-shaped water seal chamber in the inner water seal chamber space portion, and the distal end portion is in sliding contact with the inner surface of the movable-side ring seal chamber or the water seal seal plate. An air supply device, wherein a sliding contact seal plate is attached over a pressure reducing section. 3. A plurality of transport bodies movably arranged along a circular movement path, and a movable annular air duct arranged along the movement path and connected to the transport body via an intermediate air duct. And a fixed-side annular air duct that is disposed along a movement path and is movably fitted to the movable-side annular air duct via a water seal device. A water-reducing device, wherein the water-sealing device includes an inner annular water-sealing chamber and an outer annular water-sealing chamber formed on one of the movable-side annular air duct and the fixed-side annular air duct; and the movable-side annular air duct. And a water-sealing seal plate provided at the other of the fixed-side annular air duct and having a lower end immersed in the sealing water in the inner peripheral annular water sealing chamber and the outer peripheral annular water sealing chamber. A partition sliding contact that is attached to the inner surface of the fixed-side water seal chamber in the inner water seal chamber space portion of the inner peripheral annular water seal chamber and the outer peripheral annular water seal chamber, and the leading end of the partition is in sliding contact with the movable-side water seal seal plate. A partition sliding contact plate which is attached to a plate or a fixed-side water sealing seal plate and whose leading end is in sliding contact with the inner surface of the movable-side water sealing chamber is provided so that its lower end is submerged in the sealing water. Air supply device. 4. The auxiliary air supply means comprises a branch duct branched from an intermediate air duct for supplying cooling air to the fixed side annular air duct.
An air supply device as described. 5. The air supply device according to claim 1, wherein the auxiliary air supply means comprises an auxiliary air pump unit and an auxiliary air supply duct connected to the auxiliary air pump unit. 6. A high-temperature granular material cooling facility provided with the air supply device according to claim 1, wherein the carrier has circular side walls provided on the inner side and the outer side. The bottom of the side wall is composed of a plurality of troughs on which high-temperature granules are mounted, and the air supplied to the carrier is cooling air for cooling the high-temperature granules mounted on the troughs. A high-temperature powder cooling apparatus equipped with an air supply device, comprising: an ore supplying section for supplying granules to a trough; and an ore discharging section for inclining the trough to drop and discharge the high-temperature powder.