Top-blown converting furnace and continuous copper smelting plant

Abstract

The utility model relates to a kind of top-blown converter and continuous copper smelting equipment.Wherein, including converter body and multiple top-blown converter lances, the hearth height of the converter body is 6-8m, the top-blown converter lance is arranged at the top of the converter body and spaced apart from each other, the converter body has flux inlet, copper matte inlet, converter slag discharge port and crude copper discharge port, the copper matte inlet is used for the cold copper matte after granulation to enter the converter body through it.This utility model's top-blown converter can realize continuous feeding and continuous crude copper discharge during the blowing process, and the blowing process is not divided into "slagging period" and "copper-making period", the intermittent periodic operation of top-blown converter blowing process in related technology is changed into continuous top-blown converter blowing process, and the oxygen lance deformation is reduced, the oxygen lance life is improved, the investment and operation cost are saved, and the operation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of copper smelting technology, specifically to a top-blown smelting furnace and continuous copper smelting equipment. Background Technology

[0002] Top-blown furnaces for copper smelting include Osmelt furnaces and Isa furnaces. Top-blown smelting and top-blown refining are typical pyrometallurgical copper smelting processes. However, existing top-blown refining processes still adopt periodic operations and have not achieved continuous refining operations. As a result, the problems of furnace conditions and subsequent flue gas fluctuations have been gradually amplified. The advantage of low operating costs for smelters using top-blown smelting + top-blown refining technology is no longer present, and upgrades and transformations are urgently needed. Utility Model Content

[0003] This utility model is based on the inventor's discovery and understanding of the following facts and problems:

[0004] Currently, the main supporting process for copper smelting using top-blown smelting is the double top-blown process, namely top-blown smelting + top-blown smelting: copper concentrate and flux batching (-granulation) - top-blown smelting - electric furnace settling and separation to produce copper matte and smelting slag. The copper matte is sent to top-blown smelting to produce crude copper.

[0005] Copper materials undergo primary batching, mixed material disc granulation, and secondary batching with flux, blowing slag, and lump coal, based on actual production conditions. The resulting material is then fed into the smelting furnace via a belt conveyor. The required oxygen, lance air, and sleeve air are blown into the molten pool through lances. The molten pool is thoroughly agitated by the lances, ensuring that the chemical and physical reactions within the pool are completed, producing a mixed melt and high-zinc, lead, and arsenic dust. The mixed melt is then separated into matte and electric furnace slag through a settling electric furnace. The matte is water-quenched and stored in a matte silo, while the electric furnace slag is slowly cooled and then processed in a slag beneficiation workshop to recover copper. Solid matte is fed into the blowing furnace via a belt conveyor. After metallurgical calculations, it is mixed with quartz sand, limestone, and lump coal. Compressed air and oxygen are blown into the molten pool of the blowing furnace through specially designed lances. After two stages of blowing—slag formation and copper formation—qualified crude copper is produced. The blowing furnace slag is water-quenched and returned to the smelting furnace for further smelting. The flue gas from the smelting furnace and the blowing furnace is cooled by a waste heat boiler, then purified by an electrostatic precipitator, and finally sent to the acid production system to produce sulfuric acid. The flue gas from the settling electric furnace is cooled by a water-cooled flue and purified by an electrostatic precipitator before being sent to the acid production system to produce sulfuric acid.

[0006] The main drawbacks of the existing "top-blown smelting + top-blown refining" technology are:

[0007] (1) It is difficult to produce high-grade copper matte by top blowing smelting. There is currently no production practice of producing copper matte with a copper content of more than 65%, which cannot meet the current development trend of continuous top blowing smelting.

[0008] (2) The existing top-blown smelting operation has a low temperature and violent agitation of the molten pool. The copper matte and smelting slag cannot be completely separated in the molten pool and need to be separated by a settling electric furnace, which has high operating costs.

[0009] (3) The existing top-blown smelting process requires two stages, slag formation and copper formation, to produce qualified crude copper. The top-blown smelting furnace, like the traditional PS converter, is an intermittent and periodic operation, and cannot be continuously fed. The smelting flue gas conditions are unstable, which affects the subsequent flue gas treatment process.

[0010] (4) The existing top-blown smelting is an intermittent and periodic operation with periodic changes in operating temperature, which affects the life of the furnace body refractory and reduces the furnace life; at the same time, the composition and temperature of the flue gas in the top-blown smelting furnace also fluctuate periodically, which is not conducive to subsequent flue gas acid production.

[0011] This utility model aims to at least partially solve one of the technical problems in the related art.

[0012] Therefore, embodiments of this utility model propose a top-blown smelting furnace. By modifying copper smelting facilities that employ top-blown smelting technology in related technologies, continuous feeding and continuous discharge of crude copper are achieved during the smelting process. At the same time, the distinction between the "slag-forming period" and the "copper-forming period" in the smelting process is eliminated, realizing continuous smelting. This transforms the intermittent and periodic top-blown smelting process in related technologies into a continuous top-blown smelting process.

[0013] An embodiment of this utility model proposes a continuous copper smelting equipment.

[0014] According to an embodiment of the present invention, a top-blown smelting furnace includes a smelting furnace body and multiple top-blown smelting lances. The furnace chamber of the smelting furnace body has a height of 6-8m. The top-blown smelting lances are located at the top of the smelting furnace body and are spaced apart from each other. The smelting furnace body has a flux inlet, a copper matte inlet, a smelting slag outlet, and a crude copper outlet. The copper matte inlet is used for granulated cold copper matte to enter the smelting furnace body.

[0015] The top-blown smelting furnace of this utility model, through the modification of copper smelting facilities that employ both top-blown smelting and top-blown smelting processes in related technologies, achieves continuous feeding and continuous discharge of crude copper during the smelting process. At the same time, it eliminates the distinction between the "slag-forming period" and the "copper-forming period" in the smelting process, realizing continuous smelting. It transforms the intermittent and periodic top-blown smelting process in related technologies into a continuous top-blown smelting process, reduces oxygen lance deformation, extends oxygen lance life, saves investment and operating costs, and helps improve operational efficiency.

[0016] In some embodiments, the top-blown smelting lance is an immersion lance, and the nozzle of the top-blown smelting lance is located in the smelting reaction zone of the top-blown smelting furnace.

[0017] In some embodiments, the number of top-blown refining guns is 2-6.

[0018] In some embodiments, the top-blown smelting furnace further includes a plurality of blowing-side spray guns, which are spaced apart from each other and disposed on the sidewall of the blowing reaction zone of the top-blown smelting furnace.

[0019] In some embodiments, the number of the blowing side spray guns is 2-4.

[0020] In some embodiments, the top-blown furnace is an Osmite furnace or an Isa furnace.

[0021] The continuous copper smelting equipment of this utility model embodiment includes:

[0022] A top-blown smelting furnace, comprising a furnace body and multiple top-blown smelting lances, the lances being positioned at the top of the furnace body and spaced apart from each other. The furnace body includes a charging port, a slag discharge port, and a matte discharge port, the latter used for discharging hot matte.

[0023] In a top-blown smelting furnace, the granulated cold copper matte enters the furnace body through the copper matte inlet.

[0024] In some embodiments, the top-blown smelting lance is an immersion lance, and the top-blown smelting lance is inserted into the molten pool 200-300mm.

[0025] In some embodiments, the number of top-blown smelting torches is 3-6. Attached Figure Description

[0026] Figure 1 This is a schematic flowchart of the top-blowing continuous copper smelting method according to an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the top-blown refining furnace according to an embodiment of the present invention.

[0028] Figure label:

[0029] Top-blown smelting furnace 1, smelting furnace body 11, top-blown smelting lance 12, smelting side lance 13, smelting reaction zone 14, cold copper matte layer 15, crude copper layer 16. Detailed Implementation

[0030] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0031] The top-blown smelting furnace and continuous copper smelting equipment of the present invention are described in detail below.

[0032] The top-blown smelting furnace and continuous copper smelting equipment of the embodiments of the present utility model are modifications to the copper smelting facilities using the top-blown smelting process of the top-blown method plus the top-blown converting process in the related art.

[0033] The continuous copper smelting equipment of the embodiments of the present utility model includes a top-blown smelting furnace and a top-blown converting furnace 1.

[0034] The top-blown smelting furnace has a smelting furnace body and multiple top-blown smelting lances. The top-blown smelting lances are arranged at the top of the smelting furnace body and are spaced apart from each other. The smelting furnace body has a feeding port, a smelting slag discharge port, and a matte discharge port. The matte discharge port is used to discharge hot matte.

[0035] The top-blown smelting furnace of the present application is a modification to the Ausmelt top-blown smelting furnace in the related art. The modification content includes: canceling the original main top-blown lance of the top-blown smelting furnace and arranging multiple top-blown smelting lances spaced apart from each other at the top of the top-blown smelting furnace. The multiple top-blown smelting lances can increase the oxygen-enriched air, improve the smelting intensity of the top-blown smelting, increase the matte grade produced by smelting from 55% to about 70%, produce high-grade matte, realize the separation of smelting slag and matte, and provide conditions for subsequent continuous converting operations.

[0036] A matte discharge port is added to the top-blown smelting furnace, and the settling electric furnace in the top-blown smelting process is canceled. The oxygen enrichment concentration in the smelting process is increased, the matte grade is improved, the heat in the top-blown smelting is surplus, the temperatures of the matte and smelting slag are increased, the fluidity of the slag is improved, the copper content in the slag can be reduced, and the settling electric furnace supporting the traditional top-blown smelting furnace can be canceled. At the same time, canceling the original supporting settling electric furnace can save the equipment investment cost, shorten the construction period, make the intermittent period of shutdown and restart short, and is beneficial to improving the production efficiency.

[0037] The matte and smelting slag produced by the top-blown smelting furnace complete the settling separation in the top-blown smelting furnace. The hot matte is continuously discharged from the matte discharge port, granulated to form cold matte, and the cold matte is transported to the matte inlet of the top-blown converting furnace 1. The smelting slag is discharged from the smelting slag discharge port of the siphon pool of the top-blown smelting furnace, put into a slag ladle through a launder, slowly cooled and crushed, and then sent to the slag dressing system for treatment. The matte settled in the siphon pool is regularly discharged through a launder, cooled and crushed to form granulated cold matte, and then transported to the matte bin of the top-blown converting furnace 1.

[0038] The top-blown converting furnace of the embodiments of the present utility model includes a converting furnace body 11 and multiple top-blown converting lances. The hearth height of the converting furnace body 11 is 6 - 8 m. The top-blown converting lances 12 are arranged at the top of the converting furnace body 11 and are spaced apart from each other. The converting furnace body 11 has a flux inlet, a matte inlet, a converting slag discharge port, and a blister copper discharge port. The matte inlet is used for the granulated cold matte to enter the converting furnace body 11 through it.

[0039] The top-blown smelting furnace in this application is a modification of the top-blown melting furnace in related technologies, and the modification includes:

[0040] The furnace height of the blowing furnace body 11 was reduced. The original main top blowing lance of the top blowing furnace 1 was removed, and multiple top blowing lances 12 spaced apart from each other were installed on the top of the top blowing furnace 1.

[0041] After the furnace height of the top-blown refining furnace 1 is reduced, the required length of the top-blown refining lance 12 is reduced accordingly, which can reduce the deformation of the lance and improve its service life.

[0042] For example, the furnace height of the blowing furnace body 11 is 6m, 7m or 8m.

[0043] The top-blown smelting furnace 1 uses multiple top-blown smelting lances 12 for blowing and smelting. The air delivery volume of a single lance is relatively small, requiring a small stirring radius and low blast pressure, which can reduce the thickness of the blowing slag layer and lower the blast pressure. The smaller air delivery volume of a single lance reduces molten pool splashing in the top-blown smelting furnace 1, reduces the requirement for the furnace height of the top-blown smelting furnace 1, adapts to the height of the shortened top-blown smelting furnace 1, and saves on investment and operating costs. The thinner blowing slag layer is conducive to producing high-grade crude copper. The lower blast pressure and reduced stirring kinetic energy facilitate the sedimentation and separation of crude copper and blowing slag. Furthermore, multiple top-blown smelting lances 12 can increase oxygen-enriched air, enhance the intensity of top-blown smelting, and rapidly heat and melt the copper matte added to the top-blown smelting furnace 1, allowing it to undergo various slag-forming physicochemical reactions with other added materials to produce crude copper slag. Crude copper, due to its highest density, will sink to the bottom of the top-blown smelting furnace 1 and enter the crude copper layer. The top-blown smelting furnace 1 achieves continuous discharge of crude copper through the existing siphon channel or siphon pool's crude copper discharge port.

[0044] Furthermore, since the cold copper matte added to the top-blown smelting furnace 1 has a high grade, the amount of slag and the amount of heat released during the continuous smelting process are less than those in the top-blown smelting process in related technologies. This is conducive to continuous operation and continuous discharge of crude copper, thinning of the smelting slag layer, reducing the risk of foamy slag, and producing high-quality crude copper.

[0045] Therefore, the top-blown smelting furnace of this utility model, through the modification of copper smelting facilities using a top-blown smelting process plus a top-blown smelting process in related technologies, achieves continuous feeding and continuous discharge of crude copper during the blowing process. Simultaneously, it eliminates the distinction between the "slag-forming period" and the "copper-forming period" in the blowing process, thus achieving continuous blowing. The top-blown smelting furnace modification method of this utility model fully utilizes existing top-blown smelting furnaces, transforming the intermittent, periodic top-blown smelting process in related technologies into a continuous top-blown smelting process with relatively low modification costs. This achieves stable flue gas composition and temperature in copper smelting, which is beneficial for subsequent flue gas treatment. Furthermore, continuous blowing ensures stable operating temperature inside the furnace body, extending the furnace's lifespan.

[0046] Specifically, the top-blown furnace in this embodiment of the present invention is an Osmite furnace or an Isa furnace.

[0047] In some embodiments, the top-blown smelting lance is an immersion lance, which is inserted into the molten pool 200-300 mm. Oxygen-enriched air is injected into the molten pool of the top-blown smelting furnace. The oxygen-enriched air penetrates the slag layer in the molten pool and reacts with the mixed materials, which is beneficial for the formation of high-grade copper matte.

[0048] The number of top-blown smelting lances is 3-6. For example, the number of top-blown smelting lances can be 3, 4, 5 or 6, depending on the diameter of the top-blown smelting furnace and the smelting scale.

[0049] In some embodiments, the top-blown smelting lance 12 is an immersion lance, and the nozzle of the top-blown smelting lance 12 is located in the smelting reaction zone 14 of the top-blown smelting furnace 1. Then, the oxygen-enriched air ejected from the smelting reaction zone not only agitates the smelting reaction zone, increasing the contact area between oxygen and materials, and between materials themselves, but also improves the speed and effect of the physicochemical reactions in which the copper matte is heated, melted, and participates in slag formation, thereby enhancing the quality of the produced crude copper.

[0050] Specifically, the number of top-blown smelting lances 12 is 2-6. For example, the number of top-blown smelting lances 12 can be 2, 3, 4, 5 or 6, which can be determined according to the diameter of the top-blown smelting furnace 1 and the smelting scale.

[0051] In some embodiments, multiple blowing-side spray guns 13 spaced apart from each other are provided on the side wall of the blowing reaction zone of the top-blown smelting furnace 1. The addition of blowing-side spray guns 13 to the blowing reaction zone of the top-blown smelting furnace 1 allows for the spraying of oxygen-rich air, further increasing surface agitation and oxygen levels in the blowing reaction zone, thus assisting in the blowing process. This further enhances the speed and effectiveness of the physicochemical reactions in which the copper matte is heated, melted, and participates in slag formation, thereby improving the quality of the produced crude copper.

[0052] Specifically, the number of blowing side spray guns 13 is 2-4, which can be determined according to the diameter of the top-blown blowing furnace 1 and the smelting scale.

[0053] The top-blown smelting furnace is equipped with multiple top-blown smelting lances, and the top-blown smelting furnace 1 is equipped with multiple top-blown smelting lances 12. The top-blown smelting furnace and the top-blown smelting furnace 1 use multiple oxygen lances for blasting. On the one hand, the air supply of a single oxygen lance (top-blown smelting lance 12 or top-blown smelting lance) is small, and the splashing of the molten pool is reduced, which can reduce the furnace height of the top-blown smelting furnace and the top-blown smelting furnace 1, saving investment and operating costs. On the other hand, the furnace height is reduced, and the length of the oxygen lance can be shortened accordingly, thereby reducing the deformation of the oxygen lance and increasing its life. Thirdly, it can avoid the impact on the efficiency of continuous copper smelting operations when changing lances, and can improve the efficiency of operation. Fourthly, the blasting of multiple oxygen lances agitates the molten pool and enriches it with oxygen, which can enhance the smelting and blowing effects, and can produce high-grade copper matte and continuously produce high-quality crude copper.

[0054] Therefore, the continuous copper smelting equipment of this utility model realizes continuous feeding and continuous discharge of crude copper during the blowing process, thus achieving continuous blowing and stabilizing the flue gas composition and temperature in the copper smelting process, which is beneficial to subsequent flue gas treatment. At the same time, continuous blowing ensures stable furnace operating temperature in the top-blown blowing furnace, thereby extending the service life of the blowing furnace.

[0055] The continuous copper smelting equipment according to this utility model embodiment is used for continuous copper smelting. The continuous copper smelting method includes the following steps:

[0056] A mixed copper concentrate is prepared by combining copper concentrate, quartz, coal, and other ingredients.

[0057] The mixed copper concentrate is added into the top-blown smelting furnace through the charging port;

[0058] Smelting is carried out by blowing oxygen-enriched air into the top-blown smelting furnace through multiple top-blown smelting lances spaced apart from each other.

[0059] Smelting slag is discharged from the smelting slag outlet of the top-blown smelting furnace;

[0060] Hot copper matte is continuously discharged from the copper matte discharge port of the top-blown smelting furnace. After being granulated, the hot copper matte forms cold copper matte, which is then conveyed into the top-blown smelting furnace 1.

[0061] Add flux into top-blown refining furnace 1;

[0062] Oxygen-enriched air is injected into the top-blown furnace 1 through top-blown smelting lances 12 that are spaced apart from each other for smelting.

[0063] The blowing slag is discharged from the blowing slag discharge port of the top-blown blowing furnace 1;

[0064] Brussels copper is discharged from the blister copper discharge port of top-blown smelting furnace 1.

[0065] The oxygen concentration of the oxygen-enriched air injected by the top-blown smelting lance is 50%-90%, and the oxygen concentration of the oxygen-enriched air injected by the top-blown smelting lance 12 is 20%-40%.

[0066] In a top-blown smelting furnace, the operating temperature of the copper matte is 1230℃-1280℃, the operating temperature of the smelting slag is 1250℃-1300℃, the copper matte contains 68%-75% Cu, the iron-silicon ratio (Fe / SiO2) of the smelting slag is 1.3-2.0, the smelting slag contains 3%-5% calcium oxide, the smelting slag contains 1%-3% copper, the thickness of the copper matte layer is 700-900mm, and the thickness of the slag layer is 300-600mm.

[0067] In the top-blown furnace 1, cold high-grade copper matte is added into the molten pool of the furnace body 11 through the copper matte inlet at the top of the furnace. Flux enters the furnace body 11 through the flux inlet. The density of the cold copper matte is less than that of the slag, so it floats on top of the slag. Oxygen-enriched air is injected into the molten pool through the top-blown blowing lance 12. At the same time, oxygen-enriched air is injected through the side blowing lance 13 to assist in the blowing process, which completely agitates the molten pool. This allows the copper matte added to the furnace to be rapidly heated, melted, and undergo various slag-forming physicochemical reactions with other materials added. During the melting process, the density of the cold copper matte increases, causing it to sink. Molten copper matte droplets pass through the slag layer. Due to the high oxygen potential of the slag layer, the copper matte is oxidized to form crude copper. Simultaneously, a copper matte layer exists below the slag layer. The top-blown slag 12 and the side-blown slag 13 agitate the liquid surface with oxygen-enriched air, creating excellent contact conditions between the slag and the copper matte. The high oxygen potential of the slag transfers oxygen to the copper matte, oxidizing it and producing crude copper slag. Crude copper, due to its high density, sinks to the bottom of the furnace and enters the crude copper layer. The slag is continuously discharged from the furnace body 11 through the existing siphon channel or siphon pool's crude copper discharge port. The slag is discharged through the slag discharge port.

[0068] Inside the top-blown smelting furnace 1, the operating temperature of the crude copper is 1220℃-1260℃, the operating temperature of the smelting slag is 1250℃-1300℃, the crude copper contains 97.5%-99% Cu and 0.05%-0.8% S, the calcium-to-iron ratio (CaO / Fe) of the smelting slag is 0.3-0.4, the smelting slag contains 13%-25% Cu, the thickness of the crude copper layer is 400-600mm, and the thickness of the smelting slag layer is 100mm-500mm. Therefore, the top-blown continuous copper smelting method of this embodiment achieves continuous feeding and continuous crude copper discharge during the smelting process, realizing continuous smelting and stabilizing the flue gas composition and temperature in the copper smelting process, which is beneficial for subsequent flue gas treatment. Simultaneously, continuous smelting ensures stable operating temperature inside the furnace body of the top-blown smelting furnace, extending the furnace's lifespan.

[0069] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0070] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0071] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0072] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0073] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0074] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A top-blown smelting furnace, characterized in that, The furnace includes a blowing furnace body (11) and multiple top-blown blowing lances. The furnace height of the blowing furnace body (11) is 6-8m. The top-blown blowing lances (12) are located on the top of the blowing furnace body (11) and spaced apart from each other. The blowing furnace body (11) has a flux inlet, a copper matte inlet, a blowing slag outlet and a crude copper outlet. The copper matte inlet is used for the granulated cold copper matte to enter the blowing furnace body (11) through it.

2. The top-blown smelting furnace according to claim 1, characterized in that, The top-blown refining lance (12) is an immersion lance, and the nozzle of the top-blown refining lance (12) is located in the refining reaction zone of the top-blown refining furnace (1).

3. The top-blown smelting furnace according to claim 2, characterized in that, The number of top-blown refining lances (12) is 2-6.

4. The top-blown smelting furnace according to claim 1, characterized in that, It further includes multiple blowing side spray guns (13), which are spaced apart from each other on the side wall of the blowing reaction zone of the top blowing furnace (1).

5. The top-blown smelting furnace according to claim 4, characterized in that, The number of the blowing side spray guns (13) is 2-4.

6. The top-blown smelting furnace according to claim 1, characterized in that, The top-blown furnace is either an Osmite furnace or an Isa furnace.

7. A continuous copper smelting apparatus, characterized in that, include: A top-blown smelting furnace, comprising a furnace body and multiple top-blown smelting lances, the lances being positioned at the top of the furnace body and spaced apart from each other. The furnace body includes a charging port, a slag discharge port, and a matte discharge port, the latter used for discharging hot matte. Top-blown smelting furnace (1), wherein the top-blown smelting furnace (1) is the top-blown smelting furnace according to any one of claims 1 to 6, and the granulated cold copper matte enters the smelting furnace body (11) through the copper matte inlet.

8. The continuous copper smelting equipment according to claim 7, characterized in that, The top-blown smelting lance is an immersion lance, and the top-blown smelting lance is inserted into the molten pool 200-300mm.

9. The continuous copper smelting equipment according to claim 7, characterized in that, The number of top-blown smelting torches is 3-6.

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