CN216845694U

CN216845694U - Metallurgical furnace with slag outlet at bottom

Info

Publication number: CN216845694U
Application number: CN202121466946.9U
Authority: CN
Inventors: 马子珩
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-06-28
Anticipated expiration: 2031-06-30

Abstract

The utility model belongs to the technical field of metal-smelting and metal oxide melts and specifically relates to a metallurgical stove of bottom is equipped with slag notch, including the furnace body, be provided with molten metal export on the lateral wall of furnace body, the bottom of furnace body is provided with down the electrode body, is provided with the slag notch on the electrode body down, and the electrode body is gone up to inside being provided with of furnace body, goes up the electrode body and is connected with electrode transformer respectively with lower electrode body. The utility model discloses a mode that upper and lower electrode switched on to the sediment liquid directly heats the sediment liquid to reach the purpose that improves the mobility of sediment liquid, and can accomplish to carry out invariable control to the outflow temperature and the flow of sediment liquid, reach the purpose that can utilize on line.

Description

Metallurgical furnace with slag outlet at bottom

Technical Field

The utility model relates to the field of metal smelting and metal oxide melting, in particular to a metallurgical furnace with a slag hole at the bottom.

Background

The slag hole of the traditional metal smelting furnace is arranged on the side wall of the smelting furnace, in the traditional smelting process, no means or mode for heating the slag hole is provided, and because the melting point of slag liquid is very high and the fluidity is poor, a large amount of auxiliary solvent materials (such as limestone, dolomite, fluorite and the like) need to be added into the furnace so as to reduce the melting point of the slag liquid and improve the fluidity of the slag liquid, thereby ensuring that the slag liquid can flow out through the furnace wall smoothly.

Structurally, the furnace is a horizontal or concave bottom with a generally uniform height, the molten metal outlet (e.g., tap hole) and the slag hole are both disposed on the furnace wall, generally at opposite or offset angles, and the slag hole is located at a higher level than the molten metal outlet.

The traditional metallurgical furnace has the following problems that (1) the energy consumption is increased, and the energy consumption is high when the auxiliary solvent materials are added into the furnace from room temperature to a melting state; (2) the slag quantity is increased, so that a large amount of solid waste is generated; (3) the metallurgical quality is reduced, the added auxiliary materials are often provided with impurities, the quality of metal smelting is reduced, and refining is usually needed;

in a word, because a large amount of auxiliary solvent materials need to be added when the traditional metallurgical furnace works, the smelting cost is greatly increased, the smelting quality is reduced, and the pollution of wastes to the environment is caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a bottom is equipped with metallurgical stove of slag notch, and it has improved the smelting quality greatly, has reduced the smelting cost.

The utility model adopts the following technical scheme:

the utility model provides a metallurgical furnace of bottom is equipped with slag notch, includes the furnace body, is provided with the molten metal export on the lateral wall of furnace body, and the bottom of furnace body is provided with down the electrode body, is provided with the slag notch on the electrode body down, and furnace body inside is provided with the electrode body, goes up the electrode body and is connected with electrode transformer respectively with the electrode body down.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a mode that upper and lower electrode switched on to the sediment liquid directly heats the sediment liquid to reach the purpose that improves the mobility of sediment liquid, and can accomplish to carry out invariable control to the outflow temperature and the flow of sediment liquid, reach the purpose that can utilize on line.

Further, the utility model discloses a preferred scheme is:

the bottom of furnace body is provided with protruding platform, and protruding platform forms the region of difference in height with the other positions of furnace body, is connected through the slope between protruding platform and the lower region.

The bottom of the furnace body is provided with a mounting hole, a cooling body is arranged in the mounting hole, the top end of the cooling body extends into the furnace body, the lower electrode body is arranged on the top end of the cooling body, and an insulating layer is arranged between the cooling body and the furnace body.

The cooling body is of an annular water jacket structure, and a water outlet and a water return port of the cooling body are respectively externally connected with a circulating water system.

Drawings

FIG. 1 is a schematic view of a conventional metallurgical furnace;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic structural view of a raised platform arranged on one side of a furnace bottom;

FIG. 4 is a top view of FIG. 3;

in the figure: a furnace body 1; a slag zone 2; a metal melt zone 3; a raised platform 4; a cooling body 5; an insulating layer 6; a lower electrode body 7; an upper electrode body 8; a slag outlet 9; a metal solution outlet 10; an electrode transformer 11; a ramp 12.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

As shown in FIG. 2, in a metallurgical furnace with a slag hole at the bottom, a molten metal outlet 10 is arranged at the bottom of the side wall at one side of a furnace body 1, a raised platform 4 is arranged at the center of the bottom of the furnace body 1, the raised platform 4 and the rest positions of the furnace body 1 form areas with different heights, and the raised platform 1 is connected with a lower area through a slope 12.

The raised platform 4 is provided with a mounting hole, a cooling body 5 is mounted in the mounting hole, the cooling body 5 is an annular water jacket with a narrow upper part and a wide lower part, a water inlet and a water return port of the cooling body 5 are respectively connected with a circulating water tank through pipelines, and the cooling body 5 is kept in an insulating state with the shell of the furnace body 1 through an insulating layer 6.

Electrode body 7 down is installed at the top of cooling body 5, and the inside of electrode body 7 is hollow structure down, and hollow structure is as slag notch 9 and furnace body 1's slag zone intercommunication, and electrode body 8 is installed to the top of furnace body 1, goes up electrode body 8 and lower electrode body 7's the corresponding setting, and electrode body 7 and last electrode body 8 adopt high temperature resistant conducting material respectively down, if: graphite, metal molybdenum, metal tungsten, metal iridium and other high-melting-point metals or high-melting-point alloy materials.

The upper electrode body 8 is electrically connected with one end of the electrode transformer 11, the other end is electrically connected with the lower electrode body 7, and the upper electrode body 8 and the lower electrode body 7 are placed in the slag liquid and form a power-on loop through the slag liquid.

When the device normally works, a certain voltage is applied between the upper electrode body 8 and the lower electrode body 7, current can pass through the inside of slag liquid between the upper electrode body 8 and the lower electrode body 7, higher thermal resistance is generated, the hot-melt slag is directly heated, the slag of a slag hole has good fluidity, the slag liquid can smoothly flow out of the slag hole 9, and the slag liquid directly enters subsequent process production after flowing out, such as slag liquid melt casting, inorganic fiber production and the like.

In this embodiment, the higher the temperature of the slag liquid is, the better the fluidity is, so the temperature of the slag liquid is adjusted by controlling the voltage of the electrode through the electrode transformer, so as to achieve the purpose of controlling the continuous and stable outflow of the slag liquid at a constant temperature and a constant current.

As shown in FIGS. 3 and 4, the raised platform 4 may also be located on the side of the furnace bottom remote from the molten metal outlet 10.

The utility model discloses an electrode type slag notch that sets up, the direct heating slag improves the mobility of slag, reaches the purpose that makes the slag flow out to can realize the constant temperature constant current of slag liquid, it is continuous stable. Auxiliary solvent materials are not needed to be added or are rarely added in the smelting process, so that the smelting cost is reduced, the waste residue emission is reduced, and the metallurgical quality is improved.

The above is only the concrete implementation manner of the present invention, but the protection of the present invention is not limited thereto, and all the equivalent changes and substitutions proposed to the technical features of the present technical solution, which can be considered by those skilled in the art, are included in the protection scope of the present invention.

Claims

1. The utility model provides a bottom is equipped with metallurgical stove of slag notch, includes the furnace body, is provided with molten metal export on the lateral wall of furnace body, its characterized in that: the bottom of the furnace body is provided with a lower electrode body, a slag outlet is arranged on the lower electrode body, an upper electrode body is arranged inside the furnace body, and the upper electrode body and the lower electrode body are respectively connected with an electrode transformer.

2. The metallurgical furnace with a tap hole at the bottom according to claim 1, wherein: the bottom of furnace body is provided with protruding platform, and protruding platform forms the region of difference in height with the other positions of furnace body, is connected through the slope between protruding platform and the lower region.

3. The metallurgical furnace with a tap hole at the bottom according to claim 1, wherein: the bottom of the furnace body is provided with a mounting hole, a cooling body is arranged in the mounting hole, the top end of the cooling body extends into the furnace body, the lower electrode body is arranged on the top end of the cooling body, and an insulating layer is arranged between the cooling body and the furnace body.

4. A metallurgical furnace having a tap hole in the bottom thereof according to claim 3, wherein: the cooling body is of an annular water jacket structure, and a water outlet and a water return port of the cooling body are respectively externally connected with a circulating water system.