CN219156902U

CN219156902U - Slag skimmer for tapping channel

Info

Publication number: CN219156902U
Application number: CN202320023066.7U
Authority: CN
Inventors: 朱学九
Original assignee: Shanghai Qixin Fractory Co ltd
Current assignee: Shanghai Qixin Fractory Co ltd
Priority date: 2023-01-05
Filing date: 2023-01-05
Publication date: 2023-06-09
Anticipated expiration: 2033-01-05

Abstract

The utility model belongs to the technical field of tapping channel skimming devices, in particular to a tapping channel skimming device, which comprises a high-temperature furnace, a main channel arranged on one side of the high-temperature furnace, a slag channel and an iron channel arranged on the outer side wall of the main channel, wherein the slag channel and the iron channel are communicated with the main channel, one end of the main channel, which is far away from the high-temperature furnace, is provided with a thickening part, one end of the iron channel, which is close to the main channel, is provided with a cavity part, a skimming device is arranged in the cavity part, and the skimming device is connected with the iron channel; because the blast furnace has great pressure, after the iron notch is opened, molten slag iron is sprayed out from the furnace and enters the main ditch in a parabolic shape; the molten slag iron has strong kinetic energy and potential energy, and is swirled to wash and erode refractory materials at two sides of the iron drop point, so that the design reduces the impact on the skimming device, and further the service life of the skimming device is prolonged.

Description

Slag skimmer for tapping channel

Technical Field

The utility model belongs to the technical field of tapping channel skimming devices, and particularly relates to a tapping channel skimming device.

Background

The skimming device is a container for separating slag and iron in the tapping process of the blast furnace, and is subject to ablation and scouring of high-temperature slag and iron, and is a key link of stokehole operation;

however, the same problem is encountered in all large-scale blast furnaces in China at present, and after the slag iron is scoured and eroded by the slag iron, the slag iron and the refractory material are chemically eroded; the refractory material is not resistant to the front physical scouring of molten iron, so that the service life of the skimming tool cannot reach an expected value (the skimming tool can be used in a main ditch, but the skimming tool is damaged), and the skimming tool is inconvenient for manufacturers of enterprises to use.

To solve the above problems, a tapping channel skimmer is proposed in the present application.

Disclosure of Invention

To solve the problems set forth in the background art. The utility model provides a slag skimmer of a tapping channel, when molten iron in a blast furnace flows into a main channel, a thickened part is impacted first, so that impact on the slag skimmer is reduced, and the service life of the slag skimmer is further prolonged.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a tapping channel skimming tool, includes the high temperature furnace and installs main ditch in high temperature furnace one side with install slag runner and the iron ditch on the main ditch lateral wall, just the slag runner with the iron ditch is linked together with main ditch, main ditch keeps away from the one end of high temperature furnace has the thickening portion, the iron ditch is close to the one end of main ditch has a chamber portion, is equipped with the skimming tool in this chamber portion, the skimming tool with the iron ditch is connected.

As the tapping channel skimmer, the thickening part is preferably made of high-temperature resistant materials.

As the tapping channel skimmer, the tapping channel skimmer is preferable, and the main channel is made of high-temperature resistant materials.

Preferably, the tapping channel skimmer of the utility model has a slope between the furnace and the main channel.

Preferably, as a tap channel skimmer of the utility model, the tap channel and tap hole of the furnace have a head of 100-350 mm.

Preferably, the slag skimmer of the tapping channel is arranged at a position parallel to the main channel.

Compared with the prior art, the utility model has the beneficial effects that: the main channel of the blast furnace has a certain gradient, and a drop of 100-350 mm exists between the main channel and the tapping hole, and after the tapping hole is opened due to the large pressure in the blast furnace, molten slag iron is sprayed out from the furnace and enters the main channel in a parabolic shape; the molten slag iron has strong kinetic energy and potential energy, swirls and erodes refractory materials at two sides of the iron drop point, the slag iron rapidly and smoothly flows down, and slag and iron are thoroughly separated according to different specific gravity by blocking the preformed piece of the skimming device: 1400 degrees of slag enters the slag runner, and 1500 degrees of molten iron flows into the iron runner after passing through a channel below the prefabricated member, and the flow speed is slowed down and enters the small well; the design reduces the impact on the skimming tool, thereby improving the service life of the skimming tool.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

in the figure:

1. a blast furnace;

2. a main trench; 21. a thickened portion;

3. an iron runner; 31. skimming tool;

4. slag runner.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1;

the slag skimmer comprises a blast furnace 1, a main runner 2 arranged on one side of the blast furnace 1, a slag runner 4 and an iron runner 3 arranged on the outer side wall of the main runner 2, wherein the slag runner 4 and the iron runner 3 are communicated with the main runner 2, one end of the main runner 2, which is far away from the blast furnace 1, is provided with a thickening part 21, one end of the iron runner 3, which is close to the main runner 2, is provided with a cavity part, a slag skimmer 31 is arranged in the cavity part, and the slag skimmer 31 is connected with the iron runner 3.

It should be noted that: the thickened portion 21 is made of a high temperature resistant material.

It should be noted that: the inside of the main groove 2 is made of high temperature resistant materials.

In this embodiment: when molten iron in the blast furnace 1 flows into the main channel 2, the thickened part 21 is impacted first, so that the impact on the skimmer 31 is reduced, and the service life of the skimmer 31 is further prolonged.

In an alternative embodiment: a gradient is provided between the blast furnace 1 and the main channel 2.

In an alternative embodiment: the tap hole of the main runner 2 and the blast furnace 1 has a drop of 100-350 mm.

In an alternative embodiment: the skimming tool 31 is placed at an angle parallel to the position of the main channel 2.

It should be noted that: the main runner 2 of the blast furnace 1 has a certain gradient, and a drop of 100-350 mm exists between the main runner 2 and the tapping hole, and after the tapping hole is opened, molten slag iron is sprayed out of the furnace and enters the main runner 2 in a parabolic shape due to the large pressure in the blast furnace 1; the molten slag iron has strong kinetic energy and potential energy, swirls and erodes refractory materials (namely thickened parts 21) at two sides of the iron drop point, the slag iron rapidly and smoothly flows down, and the slag iron is thoroughly separated according to different specific gravity by blocking a preformed unit of a skimming device 31: 1400 degrees of slag enter the slag runner 4, and 1500 degrees of molten iron flows into the iron runner 3 after passing through the channel below the prefabricated member and then enters the small well.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a tapping channel skimming ware, includes blast furnace (1) and installs main ditch (2) of blast furnace (1) one side with install slag runner (4) and iron ditch (3) on main ditch (2) lateral wall, just slag runner (4) with iron ditch (3) with main ditch (2) are linked together, its characterized in that: one end of the main ditch (2) far away from the blast furnace (1) is provided with a thickening part (21), one end of the iron ditch (3) close to the main ditch (2) is provided with a cavity part, a skimming device (31) is arranged in the cavity part, and the skimming device (31) is connected with the iron ditch (3).

2. The tapping channel skimmer as claimed in claim 1, wherein: the thickened part (21) is made of high-temperature resistant materials.

3. The tapping channel skimmer as claimed in claim 1, wherein: the inside of the main groove (2) is made of high-temperature resistant materials.

4. The tapping channel skimmer as claimed in claim 1, wherein: a gradient is arranged between the blast furnace (1) and the main ditch (2).

5. The tapping channel skimmer as claimed in claim 1, wherein: the main runner (2) and the tap hole of the blast furnace (1) have a fall of 100-350 mm.

6. The tapping channel skimmer as claimed in claim 1, wherein: the placement angle of the skimming tool (31) is parallel to the position of the main ditch (2).