JPH11281261A - Air seal apparatus installed on supply/discharge side of sintering machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a novel sealing apparatus for a sintering machine which enables efficient sealing for a long time. SOLUTION: An air seal apparatus installed on the supply/discharge side of a sintering machine is constituted of a seal plate 2 so arranged to contact the underside of a pallet 1 as truck where a material is placed or to form a very small clearance therewith, a plate spring 3 which is linked to the seal plate 2 to follow the pallet 1 according to changes in the level thereof and a regulation rod 4 one end of which is connected to the plate spring 3 while the other end thereof is supported on a support S to regulate the follow-up amount of the plate spring 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing device installed on the supply / discharge side in a sintering machine, and more particularly to an improvement in sealing performance to reduce the amount of air leakage and improve productivity. is there.

[0002]

2. Description of the Related Art A sintering machine generally has a structure as shown in FIG. 1, and seals a sliding portion of a pallet p, which is a cart on which raw materials are to be sucked downward, and a wind box w thereunder. In particular, the pallet of the sintering machine moves itself, and the bottom of the pallet is not flat due to load or thermal deformation. For this reason, it is important to seal the dead seal section d, which is a feed / discharge section, and a conventional seal device having a structure using a counterweight as shown in FIG. 2 or a wipe seal as shown in FIG. There has been known a device utilizing the above method or a device having a fixed dead plate as shown in FIG.

[0003]

The conventional sealing device as described above has the following drawbacks, and the solution has been desired.

Counterweight type: The gap between the bottom of the pallet is about 5 mm, and a SUS bellows is provided between the sealing member main body and the support for supporting the sealing member main body to cope with the vertical movement of the sealing member main body. However, the bellows have an extremely short service life of 6 months, and the mounting area is very narrow, which makes it difficult to replace them. It is fixed in position. Cypress seal type: Since the wipe seal is directed upward, it is difficult to follow the seal pallet bottom surface due to falling down or clogging. Dead plate fixed type: The distance between the bottom of the pallet and the dead plate changes for each pallet.
It is necessary to provide a gap of about 0 mm, and the effect as a sealing device can hardly be expected.

An object of the present invention is to solve the above-mentioned problems in the conventional sealing device and to propose a new device capable of efficiently sealing over a long period of time.

[0006]

SUMMARY OF THE INVENTION The present invention relates to an air seal device installed on the supply / discharge side of a sintering machine. A seal plate forming a clearance, a leaf spring connected to the seal plate and following the level change of the pallet, and a follow-up amount of the leaf spring connected at one end to the leaf spring and supported at the other end by the support. This is an air seal device that is arranged on the supply / discharge side of the sintering machine and that includes an adjustment rod for adjusting the pressure.

In the present invention, the leaf spring has a function of sealing in the width direction of the pallet, and further, has a wiper seal on both sides of the seal plate.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described more specifically with reference to the drawings. FIG. 5 shows a side view of the configuration of the sealing device according to the present invention. In the figure, reference numeral 1 denotes a pallet which moves sequentially in the direction of an arrow, and 2 denotes a pallet 1 which contacts the lower surface of the pallet 1 or has a very small size. The seal plate 3 that forms the gap is a leaf spring.
Is connected to the seal plate 2 and follows the level change of the pallet 1. Reference numeral 4 denotes a rod for adjusting the follow-up amount shown in the example in which two rods are arranged. One end of the rod 4 is connected to the leaf spring 3 and the other end is connected to the support s.

In the sealing device having the above configuration,
The position of the seal plate 2 is adjusted by the rod 4 and the follow-up amount is adjusted. If the sealing device is arranged in the dead seal part of the sintering machine according to the above procedure, the pallet 1
However, even if there is an upward or downward variation during the heat deformation or the movement related to the transportation of the raw material, the sealing performance is not adversely affected.

By disposing the leaf spring 3 in the apparatus according to the present invention, the leaf spring can also serve as a seal. Further, the structure is relatively simple, and even if deposits such as dust fall, the spring does not operate properly. Also does not cause.

[0011]

EXAMPLE A sealing device as shown in FIG. 5 is disposed (a gap of the seal: 15 mm) on the supply / discharge side of a sintering machine having a structure as shown in FIG. The air volume was investigated. As a result, while the air leakage rate was 34.4% in the conventional sealing device (dead plate type), the air leakage ratio was 14.8% in the device according to the present invention, and efficient sealing was possible. And the productivity was improved by about 3%.

[0012]

According to the present invention, the amount of air leakage on the supply / discharge side of the sintering machine can be extremely reduced, so that productivity can be improved. Further, since the structure of the sealing device is relatively simple, it is possible to maintain the sealing performance for a long period of time without causing malfunction due to deposits such as dust.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a sintering machine.

FIG. 2 is a view showing a counterweight type sealing device.

FIG. 3 is a diagram showing a configuration of a wiper seal type device.

FIG. 4 is a diagram showing a configuration of a dead plate type sealing device.

FIG. 5 is a diagram showing a configuration of a sealing device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pallet 2 Seal plate 3 Leaf spring 4 Adjustment rod s Support a Ignition furnace b Electric dust collector c Main exhaust fan d Dead seal part e Gas main duct p Pallet w Window box

Claims (3)

[Claims] 1. An air seal device installed on the supply / discharge side of a sintering machine, wherein the seal device contacts a lower surface of a pallet, which is a truck on which raw materials are loaded, or forms a very small gap. And a leaf spring connected to the seal plate and following the level change of the pallet according to the level change of the pallet, and an adjusting rod for connecting one end to the leaf spring and supporting the other end to the support to adjust the follow amount of the leaf spring. , An air seal device arranged on the supply / discharge side of the sintering machine. 2. The air seal device according to claim 1, wherein the leaf spring has a function of sealing in a width direction of the pallet. 3. The air seal device according to claim 1, wherein a wiper seal is provided on both sides of the seal plate.