JPH087360Y2 - High temperature powder cooling device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cooling device for high-temperature powder or granular material.

2. Description of the Related Art A cooling device for high-temperature powder or granular material, for example, a cooling device for sintered ore
While moving the sinter along the circular path, cooling air is caused to flow upward from below to cool the sinter.

Conventionally, as a cooling device of this kind, the actual fair 1-25277
Is disclosed in Japanese Patent Application Laid-Open Publication No. HEI 9-203 (1995).

In other words, this cooling device is provided with a carrier that is movable in a circular path (left and right circular side walls connected by connecting beams and the bottom surface between these side walls, and the sintered ore is placed on the upper surface. It is designed to supply cooling air into the ventilation box provided in the trough (which is composed of the trough to be placed), and is circular in order to supply the cooling air to the ventilation box. A fixed side cooling duct is provided along the path, a trough side cooling duct is provided on the carrier side, and the fixed side cooling duct and the trough side cooling duct are sealed by a water seal.

Further, in the sinter supply / discharge section, the trough side communicates with the atmosphere and the cooling air escapes.Therefore, a dead plate is provided to block the air passage formed in the fixed side cooling duct in this section. A rubber seal is provided to block the gap between the trough side and the dead plate, and cooling air is allowed to flow through the water sealing chamber to the supply / discharge section in the cooling section other than the supply / discharge section. In order to prevent this, a rubber seal is also provided between the side plate portion of the fixed side cooling duct and the cover body of the trough side cooling duct.

However, according to the above-described conventional configuration, the gap between the fixed side cooling duct and the trough side cooling duct is pressed and blocked by the rubber seal, so that the rubber seal is severely worn. However, the rubber seal had to be replaced frequently, and therefore maintenance was very troublesome.

Therefore, an object of the present invention is to provide a cooling device for a high-temperature powder or granular material that can solve the above problems.

Means for Solving the Problems In order to solve the above problems, a first means of the present invention is to provide an inner circular side wall and an outer circular side wall which are concentrically arranged and are connected to each other by a connecting beam, and both circular side walls. A plurality of troughs, which are arranged at the bottom of the trough and are movable along a circular movement path, and high-temperature powder particles placed on each of these troughs are supplied from below the placement surface. In a cooling device for high-temperature powder granules that is cooled by the cooling air thus prepared, a fixed-side annular air duct having an upper surface opened along the moving path and an air passage formed therein is provided. A movable side annular air duct that covers the opening of the duct from above is attached to the circular side wall side, and the side walls of both annular air ducts are sealed with a water sealing device, and The ventilation chamber formed in the rough and the movable side annular air duct are communicated with each other, and the movable side annular air duct is provided in the fixed side circular air duct corresponding to the supply and discharge parts of the granular material in the movement path of the trough. A dead plate that cooperates with a partition plate provided on the duct side to block the air passage over a predetermined section is provided, and a blocking plate body that can close a gap with the dead plate is shaken on the partition plate side. It is movably held.

In order to solve the above-mentioned problems, the second means of the present invention is to arrange an inner circular side wall and an outer circular side wall, which are concentrically arranged and connected to each other by a connecting beam, and a bottom portion between these circular side walls. A plurality of troughs that are installed and are movable along a circular movement path, and high-temperature powder granules placed on each of these troughs are supplied with cooling air from below the placement surface. In a cooling device for high-temperature powder granules that is cooled by, a fixed-side annular air duct having an upper surface opened along the moving path and an air passage formed inside is provided, and an opening of this fixed-side annular air duct is A movable side annular air duct that covers from above is attached to the circular side wall side, and the side walls of both annular air ducts are sealed by a water sealing device to form a water sealing chamber of this water sealing device. A seal plate is provided on the upper surface of the side wall plate on the air passage side of the fixed side annular air duct, and a closing plate body slidable on the side wall of the movable side annular air duct is slidably attached to the seal plate via a mounting pin. The movable plate is held movably, and the upper surface of the seal plate between the supply and discharge parts is located above the other parts in the moving path to expand the closing range of the closing plate with the water sealing chamber side. It is a thing.

Action According to each of the above configurations, the closing plate that closes the gap between the partition plate and the dead plate and the closing plate that closes the air passage side and the water sealing chamber side can be freely swung on the respective mounting members. Since it is held at, unlike the conventional one in which the rubber seal is pressed against the dead plate side, almost no wear occurs in each closing plate body.

Embodiment An embodiment of the present invention will be described below with reference to FIGS.

In FIG. 7 and FIG. 8, reference numeral 1 denotes a carrier which is movably arranged along a circular movement path A, and discharges the sintered ore, which is a high temperature powder or granular material, from the ore supply section (supply section). Ore Department (Discharge Department)
It is for cooling with the cooling air while moving to.

This carrier 1 is arranged at the inner circular side wall 3 and the outer circular side wall 4 connected to each other by a connecting beam 2, and at the bottom between these circular side walls 3 and 4, and has a circular shape via a guide wheel 5. It is composed of a plurality of troughs 7 which are movable on a laid guide rail 6.

 Next, the cooling device for the sintered ore will be described.

That is, each of the troughs 7 is composed of a trough body 11 having guide wheels 5 on both sides and a wind box 12 which is a ventilation chamber provided on the upper surface of the trough body 11.
The upper surface of the air vent plate 13 is a ventilation plate 13 in which a large number of ventilation holes 13a are formed.
Is provided.

As shown in FIGS. 1 to 3, a fixed-side annular air duct 21 whose upper surface is opened along the movement path is provided inside the carrier 1 and the fixed-side annular air duct 21 is provided. The inner and outer side wall portions 22 and 23 are provided with annular water-sealing chambers 24 each having an open upper surface.

That is, the side wall portions 22, 2 of the fixed-side annular air duct 21.
3 are inner and outer plates (side wall plates) 22a, 2 respectively
It is composed of 2b, 23a and 23b to form a double wall structure.

The movable side annular air duct 31 covering the entire upper part of the fixed side annular air duct 21 is a connecting duct described later.
It is attached to the inner circular side wall 3 side through 37.

The movable side annular air duct 31 and the fixed side annular air duct 21 are sealed by water sealing.

That is, both side wall portions 3 of the movable side annular air duct 31
A seal plate 34 is provided so as to hang from 2, 33 in the annular water-sealing chambers 24 on both sides, and the lower end thereof is located below the water surface via a mounting flange 35.

A cover plate 36 that covers the outside of the annular water-sealing chamber 24 is obliquely provided on the outside of the upper portion of each seal plate 34.

In addition, the movable side annular air duct 31 and each trough 7
The opening portion (see FIG. 1) 8 formed in the inner circular side wall 3 corresponding to the above is communicated via the connecting duct 37. That is, the inside of the wind box 12 of each trough 7 and the air passage 25 formed inside the fixed-side annular air duct 21 are communicated with each other via the connecting duct 37.

At the intermediate position between the connecting ducts 37 provided corresponding to the trough 7 of the movable side annular air duct 31, the upper part of the air passage 25 of the fixed side annular air duct 21 is moved in the moving direction of the trough 7. Partition plate 38 for blocking against
Is provided.

By the way, a supply / discharge unit B for supplying and discharging the sintered ore is provided in the middle of the moving path of the carrier 1, and the wind box 12 of the trough 7 is in communication with the atmosphere during this period.

For this reason, it is considered that the cooling air does not escape in this portion.

That is, dead plates 41 for blocking the air passages 25 in the fixed-side annular air duct 21 are provided in front and rear positions of the sinter supply / discharge section B, and as shown in FIG. A closing plate body (for example, a steel plate is used) 42 that can close the gap a between the partition plate 38 provided on the duct 31 side and the upper surface of the dead plate 41 is provided below the partition plate 38 via a mounting pin 43. It is held so that it can swing (a hinge method is acceptable).

The dead plates 41 are arranged at a predetermined distance from each other, and the front and rear side surface blocking plates 44 that block the entire cross section of the air passage 25, and the upper surface disposed between the upper ends of the side surface blocking plates 44. It is composed of a blocking plate 45.

In addition, the lower surface opening width of the movable side annular air duct 31 is made narrower than the width of the air passage 25 of the fixed side annular air duct 21, and both side wall portions 32, 3 of the movable side annular air duct 31.
The lower end of 3 is located slightly above the upper end surfaces of the side wall portions 22 and 23 of the fixed-side annular air duct 21, and the inner and outer plates (air The first seal plate 46 for narrowing the communication part gap b with the side wall parts 32, 33 of the movable side annular air duct 31 is provided on the upper end of the passage 25 side plates) 22b, 23a on almost the entire movement path. A labyrinth seal is provided between the first seal plate 41 and the first seal plate 46 on the outside of the lower end portions of the side wall parts 32, 33 of the movable annular air duct 31. A second seal plate 47 is provided for the entire length of the movement path.

Then, as shown in FIG. 5 and FIG.
On the side surface of the seal plate 47 and over the entire length, a large number of closed T-shaped closing plate bodies (for example, steel plates) which can cooperate with the first seal plate 46 to close the communicating portion gap b. (Configured) 51 is a mounting pin protruding horizontally
It is swingably held via 52, and the holding position of the closing plate body 51 is at the front side in the moving direction.

Further, the first seal plate 46 is higher than the height in the cooling section C (for example, the raised portion 46a is provided so that it is at the same height as the upper surface shielding plate 45 of the dead plate 41 between the supply / discharge sections B). Has been)
Therefore, the cooling unit C moves in an inclined state as shown in FIG. 6 (a), while the cooling unit C moves in a horizontal state as shown in FIG. 6 (b). That is, the upper surface of the first seal plate 46 is brought into sliding contact with the upper surface of the first seal plate 46, and the communication portion gap b is completely closed.

Further, a cooling air supply duct 61 is connected to a predetermined portion of the fixed side annular air duct 21, and a fixed hood for collecting the cooled high temperature air is provided above the trough 7. 62 is provided over the entire movement route.

Next, the cooling action will be described.

In the cooling section C of the movement path, the cooling air supplied from the cooling air supply duct 61 into the air passage 25 of the fixed-side annular air duct 21 is blown into the trough 7 through the connecting duct 37. It enters into the box 12 and is guided to the trough 7 through the ventilation plate 13 to cool the sinter ore and fix it to the upper fixed hood.
Emitted from 49.

In the supply / discharge section B, the cooling air that has entered the air passage 25 of the fixed-side annular air duct 21 is separated by the partition plate 38.
Side plate 42 and second seal plate 47 held on the side
The trough 7 is blocked by the closing plate 51 held on the side.
Since it does not flow to the side, it is reliably prevented from flowing from the supply / discharge unit B to the atmosphere side.

The communication part gap a between the air passage 25 and the annular water-sealing chamber 24 side in the cooling part C is defined by the first seal plate 46, the side wall parts 32 and 33 of the movable annular air duct 31, and the second seal plate 47. Due to the labyrinth effect, the outflow of the cooling air is effectively suppressed, and the outflow of the cooling air is reliably prevented from leaking to the outside by the water seal.

As described above, according to the configuration of the first means of the present invention, the closing plate body closing the gap between the partition plate and the dead plate and the closing plate closing the air passage side and the water sealing chamber side. Since the body is swingably held by each mounting member, unlike the conventional one in which the rubber seal is pressed against the dead plate side, almost no wear occurs, and therefore maintenance and inspection becomes very easy.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a sectional view of an air duct portion of a cooling device, FIG. 2 is a side view with the same portion cut away, and FIG. And FIG. 5 is a cross-sectional view of the attachment portion of the closing plate, FIG. 6 is a view taken along the line II of FIG. 5, FIG. 7 is a cross-sectional view of the cooling device, and FIG. 8 is a schematic overall plane of the cooling device. It is a figure. 1 ... Carrier, 2 ... Connecting beam, 3 ... Inner circular side wall, 4
…… Outside circular side wall, 7 …… Trough, 11 …… Trough body,
12 …… wind box, 21 …… fixed side annular air duct, 24 …… annular water sealing room, 25 …… air passage, 31 …… movable side annular air duct, 38 …… partition plate, 41 …… dead plate, 42 ……
Closing plate, 43 ... Mounting pin, 46 ... First seal plate, 51 ... Closing plate, 52 ... Mounting pin.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Yoshihisa Tozawa, 3-28 Nishikujo, Konohana-ku, Osaka City, Osaka Prefecture Hitachi Shipbuilding Co., Ltd. (72) Takashi Nakahara 5--9, Nishikujo, Konohana-ku, Osaka City, Osaka Prefecture Hitachi Shipbuilding Co., Ltd. No. 3 28 (72) Inventor Yasuhiko Yasui 5-3-28 Nishikujo, Nishikojo, Konohana-ku, Osaka City, Osaka Prefecture

Claims (2)

[Scope of utility model registration request] 1. An inner circular side wall and an outer circular side wall arranged concentrically and connected to each other by a connecting beam,
A plurality of troughs, which are arranged at the bottom between the circular side walls and are movable along a circular movement path, and high-temperature powder granules placed on these troughs are placed on the troughs. In a cooling device for a high-temperature powder or granular material cooled by cooling air supplied from below the surface, a fixed-side annular air duct having an upper surface opened along the moving path and an air passage formed therein is provided. The movable side annular air duct that covers the opening of the fixed side annular air duct from above is attached to the circular side wall side, and the side wall portions of both of these annular air ducts are sealed with a water sealing device to form in each trough. By communicating the vent chamber and the movable side annular air duct, in the fixed side annular air duct corresponding to the supply part and the discharge part of the granular material in the movement path of the trough, A dead plate that cooperates with a partition plate provided on the moving side annular air duct side to shut off the air passage over a predetermined section is provided, and the partition plate side can close a gap with the dead plate. A cooling device for high-temperature powder particles, characterized in that a plate body is held swingably. 2. An inner circular side wall and an outer circular side wall arranged concentrically and connected to each other by a connecting beam,
A plurality of troughs, which are arranged at the bottom between the circular side walls and are movable along a circular movement path, and high-temperature powder granules placed on these troughs are placed on the troughs. In a cooling device for a high-temperature powder or granular material cooled by cooling air supplied from below the surface, a fixed-side annular air duct having an upper surface opened along the moving path and an air passage formed therein is provided. The movable side annular air duct that covers the opening of the fixed side annular air duct from above is attached to the circular side wall side, and the side wall portions of both annular air ducts are sealed by a water sealing device, and the water of this water sealing device is sealed. A seal plate is provided on the upper surface of the side wall plate on the air passage side of the fixed-side annular air duct that constitutes the sealed chamber, and the seal plate is installed on the side wall side of the movable-side annular air duct. The closing plate that can slide on the table is swingably held through the mounting pins, and the upper surface of the seal plate between the supply and discharge parts is located above the other parts in the moving path. A cooling device for high-temperature powder or granules, characterized in that the closing range of the closing plate with the water sealing chamber side is expanded.