JPS5815473Y2 - Slag pot for wind slag production - Google Patents

Description

[Detailed description of the invention] This invention relates to a slag pot in a wind slag production facility.

As is well known, wind slag is produced by exposing the flow of slag that flows out in a fixed amount through the gutter of a slag pot that has a gutter for flowing slag into a high-pressure air stream that is ejected from a nozzle installed just below the tip of the gutter. Since it is manufactured by splattering, if any trouble occurs with the slag pot, production will no longer be possible.

Conventional slag pots of this type had a refractory lined inside the iron skin that formed the outer wall, so problems were likely to occur due to melting of the refractory, and once it had melted, it would take a lot of time to repair it. This is expensive, and if the refractory melts or the iron skin oxidizes, especially at the tip of the gutter, the wind slag flow itself becomes disturbed, making it impossible to obtain a high-quality product.

Based on the above-mentioned viewpoints, this invention provides a molten slag pot for producing wind slag that can withstand long-term use without causing erosion or deformation. The feature is that it is formed in the cooling medium passage.

Next, the slag ladle of this invention will be explained by way of examples with reference to the drawings.

The drawing shows a partially cutaway perspective view of an embodiment of the slag ladle of this invention.

As shown in the drawings, the main body 1 has a notch 2 on the front side,
A fixed bridge portion 3 is provided in this cutout portion 2.

A replacement gutter 4 is connected to the tip of the fixed bridge portion 3 with a plurality of bolts 5 and nuts (not shown).

The main body 1, the fixed bridge part 3, and the replacement gutter 4 are all connected to the inner wall IA.
, 3A, 4A and the outer walls IB, 3B, 4B are made of iron skin,
The spaces between these inner and outer walls serve as cooling medium passages 6, 7.8, respectively.

Each cooling medium passage 6, 7.8 has a plurality of partition walls 9, 10.1.
1 each form a meandering passage, allowing the cooling medium (for example, water) to flow sufficiently to the corners.

Furthermore, each of the cooling medium passages 6, 7.8 has a required number of water supply ports 12, 13.14 and drain ports 15, 16.17, and can freely supply and drain the required flow rate from an external water supply source. be.

The slag ladle of this invention having the above-mentioned configuration has all the inner and outer walls 1A, 1B, 3A,
3B, 4A, 4B are iron skins, and the cooling medium passages 6, 7.8 are formed between the inner and outer walls, so the inner and outer walls 1A, 1B, 3A,
Can cool 3B, 4A, 4B, high heat (around 1450℃)
There is no risk of melting even when it comes into contact with molten slag, and deformation is unlikely to occur.

Furthermore, oxidation of the tip of the exchange gutter 4 can be prevented, and since only a thin lining made of slag is formed on the inner wall surface, the amount of slag flowing out can be stabilized.

In this embodiment, the coolant passages 6, 7, 8 are meandering, but any route may be used as long as it has a structure with a high cooling effect, such as a part of the coolant passage in the main body 1 being spiral. It may also be something that takes .

As is clear from the above explanation, the slag pot of this invention is
The main body, the fixed bridge part, and the replacement gutter that are replaced are all free from melting and deformation, so it has the excellent advantage of enabling stable wind slag production over a long period of time.

[Brief explanation of drawings]

The drawing is a partially cutaway perspective view showing an embodiment of the slag pot for producing wind slag according to the present invention. In the drawings, 1...Main body, 2...Notch, 3...Fixed bridge section, 4...Replacement gutter,
IA, 3A, 4A...Inner wall, IB, 3B, 4B
...Outer wall, 6,7.8...Cooling medium passage.

Claims (1)

[Scope of utility model registration request] A molten slag pot for producing wind slag, characterized in that the inner and outer walls are made of iron skin, and a required number of partition walls are provided between these inner and outer walls to form a cooling medium passage.