Blast furnace slag tapping channel with slag quenching and tempering treatment function

Abstract

A blast furnace slag runner with a slag quenching and tempering treatment function comprises a slag runner body of a broken-line-shaped structure; the chemical feeding pipe is arranged at the inlet end of the deslagging trough body; the electric heating pipe is buried at the bottom of the slag discharge channel body; the mixer is arranged at the outlet end of the deslagging trough body; and the storage tank is arranged at the outlet end of the lower part of the mixer. According to the utility model, the slag in a molten state is directly mixed with the conditioning agent in the slag discharge channel, so that the slag is quenched and tempered in the slag discharge channel, the subsequent processing process can be reduced, and the energy consumption is saved.

Description

Technical Field

[0001] This utility model relates to the field of blast furnace technology, specifically to a blast furnace slag discharge ditch with slag conditioning treatment. Background Technology

[0002] During the pig iron smelting process, blast furnaces discharge a byproduct called blast furnace slag, a readily molten composite material. Through processing, this slag can be transformed into a variety of materials with wide applications. By adding various modifiers, the slag can be converted into different types of industrial materials. All slag processing methods involve a slag channel through which the molten blast furnace slag flows, carrying the high-temperature slag to the next processing stage, where it is further processed and modulated.

[0003] In the current steel industry, slag channels, as channels for slag removal inside blast furnaces, are only responsible for collecting the slag discharged from the bottom of the blast furnace and transporting it to a designated location for processing. Summary of the Invention

[0004] The purpose of this invention is to provide a blast furnace slag discharge ditch with slag conditioning treatment, which allows molten slag to be directly and fully mixed with conditioning agents in the slag discharge ditch, thereby reducing subsequent processing steps and saving energy consumption.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A blast furnace slag discharge ditch with slag conditioning treatment, comprising:

[0007] The slag discharge ditch itself has a zigzag structure;

[0008] A dosing pipe is installed at the inlet end of the slag discharge ditch body;

[0009] An electric heating element is buried at the bottom of the slag discharge ditch body;

[0010] A mixer is located at the outlet end of the slag discharge ditch body;

[0011] A storage tank is located at the outlet end of the lower part of the mixer.

[0012] Furthermore, it also includes a heating nozzle, which is mounted at the outlet end of the slag discharge ditch body via a fixed bracket.

[0013] Preferably, the included angle between the broken lines of the slag discharge ditch body is 30° to 50°.

[0014] Preferably, the mixer is funnel-shaped, with a spiral channel on its inner wall.

[0015] Preferably, the inner wall of the spiral channel is provided with stirring threads.

[0016] In the blast furnace slag discharge ditch with slag conditioning treatment described in this utility model:

[0017] This invention designs the slag discharge ditch body as a zigzag shape, so that when the slag flows in the zigzag ditch, it can be initially and fully mixed and stirred with the entering conditioning agent, thereby realizing slag conditioning treatment in the slag discharge ditch.

[0018] The electric heating tube is located at the bottom of the slag discharge ditch body and is used to heat the mixture of slag and modifier to prevent the mixture from solidifying when it flows at the bottom of the slag discharge ditch.

[0019] The heating nozzle can heat the mixture of slag and modifier flowing through the end of the slag discharge ditch, thereby reducing the viscosity of the mixture and increasing its fluidity.

[0020] The mixer is designed in the shape of a funnel, with a spiral channel on its inner wall. The mixture of slag and modifier can flow along the spiral channel and be further stirred, so that the slag and modifier are mixed more thoroughly.

[0021] The spiral channel is designed with stirring threads on its inner wall, which allows the mixture of slag and modifier to be mixed and stirred not only by the spiral channel in the (funnel-shaped) mixer, but also by the stirring threads, greatly improving the mixability of slag and modifier.

[0022] The storage tank is located at the bottom of the mixer and is used to store the fully mixed slag and modifier mixture.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] Compared to the current steel industry where slag channels merely serve as slag removal passages within blast furnaces, this invention designs a blast furnace slag removal channel with a zigzag structure. Combined with a funnel-shaped mixer and its inner spiral channel design, this allows for more thorough mixing of slag and modifiers, enabling slag conditioning within the slag removal channel. This reduces subsequent processing steps and saves energy. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model. Detailed Implementation

[0026] See Figure 1 The blast furnace slag discharge ditch with slag conditioning treatment described in this utility model includes:

[0027] The main body of the slag discharge ditch 1 has a broken-line structure;

[0028] The dosing pipe 2 is installed at the inlet end of the slag discharge ditch body 1;

[0029] The electric heating element 3 is buried at the bottom of the slag discharge ditch body 1;

[0030] Mixer 4 is located at the outlet end of the slag discharge ditch body 1;

[0031] Storage tank 5 is located at the outlet end of the lower part of mixer 4.

[0032] Furthermore, it also includes a heating nozzle 6, which is mounted at the outlet end of the slag discharge ditch body 1 via a fixed bracket 7.

[0033] Preferably, the included angle between the broken lines of the slag discharge ditch body 1 is 30° to 50°.

[0034] Preferably, the mixer 4 is funnel-shaped, and its inner wall is provided with a spiral channel 41.

[0035] Preferably, the inner wall of the spiral channel 41 is provided with stirring threads.

Claims

1. A blast furnace slag notch provided with a slag conditioning treatment, characterized by, The application relates to a slagging-off groove body, which is a zigzag structure. A dosing pipe is arranged at the inlet end of the slagging-off groove body. An electric heating pipe is embedded at the bottom of the slagging-off groove body. A mixer is arranged at the outlet end of the slagging-off groove body. A storage tank is arranged at the outlet end of the lower part of the mixer. A heating nozzle is arranged at the outlet end of the slagging-off groove body through a fixing support.

2. The blast furnace slag tap hole with slag conditioning treatment according to claim 1, characterized in that, The mixer is funnel-shaped, and the inner wall of the mixer is provided with a spiral channel.

3. The blast furnace slag tap hole with slag conditioning treatment according to claim 1, characterized in that, The inner wall of the spiral channel is provided with stirring threads.

4. The blast furnace slag tap hole with slag conditioning treatment according to claim 3, characterized in that, The included angle between the zigzags of the slagging-off groove body is 30-50 degrees.

5. The blast furnace slag tap hole with slag conditioning treatment according to claim 1 or 2, wherein ​

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