A copper metal oxygen-enriched side-blown refining device

Abstract

The present application belongs to the technical field of copper refining equipment, and relates to a metal copper oxygen-enriched side-blown refining equipment, which comprises a smelting mechanism, an oxygen-enriched side-blown mechanism and a flue gas purification unit. A baffle plate and a reflux plate are arranged in the smelting mechanism, and the oxygen-enriched side-blown mechanism is arranged in a bidirectional staggered manner to form a directional circulating cylinder melt flow, so that the uniformity of the temperature of the molten pool is controlled. The oxygen-enriched side-blown mechanism comprises an oxygen lance, a fan blade and an anti-blocking mechanism. The fan blade cuts oxygen bubbles to increase the reaction interface, and the anti-blocking mechanism prevents the end of the lance from being blocked. The flue gas purification unit adopts a spiral centrifugal separation structure to effectively remove flue gas particles. The present application optimizes the copper melt flow mode, solves the problem of excessive temperature difference in traditional copper smelting, improves the oxygen utilization rate and the copper smelting efficiency, and simultaneously realizes automatic slagging and efficient flue gas purification. The present application has the advantages of low energy consumption, less pollution, stable operation and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal copper refining equipment, in particular to a metal copper oxygen-enriched side blowing refining equipment. BACKGROUND

[0002] In the traditional metal copper refining process, due to the lack of effective copper melt flow control means, there is a serious temperature gradient problem in the static smelting pool, and the temperature difference between the edge and the center of the pool often exceeds 200 DEG C, which not only leads to local overburning or cold zone solidification of copper melt quality problems, but also seriously restricts the improvement of metal copper refining efficiency. In the prior art, although some equipment tries to promote copper melt flow by unilateral oxygen blowing and other ways, due to the lack of reasonable flow field guiding structure, it is difficult to form stable circulating flow, and the temperature uniformity is limited.

[0003] Therefore, it is urgent to propose a metal copper oxygen-enriched side blowing refining equipment to solve the problems existing in the prior art. SUMMARY

[0004] The present application provides a metal copper oxygen-enriched side blowing refining equipment to solve the problems existing in the prior art.

[0005] The technical scheme for solving the above technical problems is as follows:

[0006] A metal copper oxygen-enriched side blowing refining equipment, comprising a smelting mechanism, the smelting mechanism comprising a molten pool, the molten pool is fixedly connected with a baffle plate, the baffle plate is fixedly connected with a backflow plate, the molten pool is provided with an oxygen-enriched side blowing mechanism, the oxygen-enriched side blowing mechanism comprises two external oxygen injection pipes, the two oxygen injection pipes are fixedly connected at the front and rear ends of the molten pool respectively, and the oxygen injection pipes are fixedly connected at the left and right sides of the molten pool respectively, when the two oxygen injection pipes work simultaneously, the copper melt in the molten pool is circulated and rotated, the oxygen injection pipe is fixedly connected with a fixed disc, the fixed disc is fixedly connected with a connecting disc through a connecting rod, the connecting disc is provided with a fan blade in the middle, and the fan blade is located on the oxygen gas conveying path of the oxygen injection pipe.

[0007] Preferably, the smelting mechanism further comprises a smelting chamber, the molten pool is arranged in the interior of the smelting chamber, one end of the smelting chamber is provided with a feeding port, one side of the feeding port is provided with a spiral feeding equipment for adding copper concentrate, the spiral feeding equipment moves through the bottom slide rail, and one side of the spiral feeding equipment is provided with a belt feeding equipment for conveying copper concentrate.

[0008] Preferably, the bottom of the baffle plate is fixedly connected to the bottom of the molten pool, the upper end of the baffle plate is lower than the upper end of the molten pool, thereby forming an overflow port of the copper melt, and the upper end of the backflow plate is higher than the upper end of the molten pool, the backflow plate separates the upper part of the molten pool, prevents the copper melt in the middle part from colliding with each other, and thereby facilitates the circulating effect of the opposite oxygen lance on the copper melt.

[0009] Preferably, the baffle plate separates the smelting pool into two parts, i.e., a separation zone and a melting zone, and the bottom of the separation zone is provided with a molten outlet for discharging the copper melt.

[0010] Preferably, the head of the oxygen lance is provided with an anti-blocking mechanism, the anti-blocking mechanism comprises a rotating ring, the rotating ring is rotatably arranged on the outer wall of the head of the oxygen lance, a row of blades are arranged on the inner wall of the rotating ring, the blades and the axis of the rotating ring form an angle of 30 degrees, when the rotating ring drives the blades to rotate, a push flow effect is formed, the rotating ring is fixedly connected through a fixing rod and a fixing ring, and the fixing ring is fixedly arranged on the outer side of the blades.

[0011] Preferably, a slag discharging assembly is arranged in the molten pool, the slag discharging assembly comprises a slag baffle, the slag baffle is rotatably connected between the backflow plate and the side wall of the molten pool at an inclination angle of 60 degrees through a support, the slag baffle is driven to rotate by a servo motor, the servo motor is fixedly connected to the outside of the smelting chamber, and one side of the slag baffle is provided with a slag discharging channel for discharging the copper smelting slag.

[0012] Preferably, a flue gas purification unit is arranged at the end of the smelting chamber away from the feeding port, the flue gas purification unit comprises a flue, and the flue is fixedly connected to the end of the smelting chamber away from the feeding port.

[0013] Preferably, a middle shaft is fixedly connected in the flue, a plurality of spiral leaves are fixedly connected to the middle shaft, the spiral leaves and the flue have a preset angle, the plurality of spiral leaves form a spiral upward trend, the spiral leaves and the inner wall of the flue have a gap, and a circular truncated cone part is fixedly connected to the lower end of the flue.

[0014] Preferably, the circular truncated cone part is a cylinder that gradually narrows from bottom to top, has the effect of guiding the copper melt flue gas, the upper end of the circular truncated cone part is provided with an opening for the flue gas to pass through, the circular truncated cone part is fixedly connected in the flue at an inclination, a channel for intercepting falling particles is formed at the connection between the circular truncated cone part and the flue, and a discharging port for discharging particles is arranged at the lower end of the channel.

[0015] Compared with the prior art, the beneficial effects of the present application are as follows:

[0016] The application forms directional circulating copper melt flow by the oxygen-rich side blowing mechanism with two-way staggered arrangement of the baffle and the backflow plate arranged in the molten pool, so that the molten pool temperature is uniform, and the problem of local overburning or cold zone solidification caused by too large temperature difference in traditional copper static smelting is effectively solved.

[0017] The fan-bubble cutting system breaks the oxygen bubbles into micro-bubble groups, the gas-copper liquid reaction interface area is significantly increased, the reaction contact frequency is improved by cooperating with the copper melt circulating flow, the oxygen utilization rate in the copper smelting process is improved, and the copper smelting rate is also accelerated.

[0018] The anti-blocking mechanism maintains the temperature at the end of the spray pipe by dynamic plug flow, and prevents the problem of slag blocking in the copper smelting process.

[0019] The flue gas purification unit adopts a spiral centrifugal separation structure, which can efficiently capture copper smelting flue gas particles and form a self-cleaning discharge channel. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Among them:

[0022] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0023] Figure 2 It is a schematic diagram of the structure inside the smelting chamber in the present application;

[0024] Figure 3 It is Figure 2 It is an enlarged schematic diagram of the structure at A in the present application;

[0025] Figure 4 It is Figure 3 It is an enlarged schematic diagram of the structure at B in the present application;

[0026] Figure 5 It is a schematic diagram of the connection structure of the smelting mechanism and the oxygen-rich side blowing mechanism in the present application;

[0027] Figure 6 It is Figure 5 It is an enlarged schematic diagram of the structure at C in the present application;

[0028] Figure 7 It is a dynamic schematic diagram of the copper melt flow inside the molten pool in the present application;

[0029] Figure 8 It is a schematic diagram of the connection structure of the flue in the present application.

[0030] In the drawings:

[0031] 1 smelting mechanism; 11 smelting chamber; 12 molten pool; 13 material blocking plate; 14 backflow plate; 15 molten material outlet; 16 separation zone; 17 melting zone; 18 feeding port;

[0032] 2 spiral feeding equipment; 3 belt feeding equipment;

[0033] 4 oxygen-rich side-blown mechanism; 41 oxygen injection pipe; 42 fixed disc; 43 connecting disc; 44 connecting rod; 45 fan blade;

[0034] 5 anti-blocking mechanism; 51 rotating ring; 52 blade; 53 fixed rod; 54 fixed ring;

[0035] 6 slag discharging assembly; 61 slag blocking plate; 62 slag discharging channel; 63 servo motor;

[0036] 7 flue gas purification unit; 71 flue; 72 spiral blade; 73 central shaft; 74 circular cone; 75 opening; 76 discharge port. DETAILED DESCRIPTION

[0037] This part aims to outline some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part and the abstract and title of the specification to avoid obscuring the purpose of this part, the abstract and the title, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0038] In order to make the purposes, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the embodiments described below are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0039] Embodiments:

[0040] As Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7As shown, a metal copper oxygen-enriched side-blown refining device, comprising a smelting mechanism 1, the smelting mechanism 1 comprises a molten pool 12, the molten pool 12 is fixedly connected with a baffle plate 13, the baffle plate 13 is fixedly connected with a reflux plate 14, the molten pool 12 is provided with an oxygen-enriched side-blown mechanism 4, the oxygen-enriched side-blown mechanism 4 comprises two external oxygen lances 41, the two oxygen lances 41 are fixedly connected at the front and rear ends of the molten pool 12 respectively, and the oxygen lances 41 are fixedly connected at the left and right sides of the molten pool 12 respectively, when the two oxygen lances 41 work simultaneously, the copper melt in the molten pool 12 circulates and rotates, the oxygen lance 41 is fixedly connected with a fixed disc 42, the fixed disc 42 is fixedly connected with a connecting disc 43 through a connecting rod 44, the connecting disc 43 is provided with a fan blade 45 in the middle, and the fan blade 45 is located on the oxygen gas conveying path of the oxygen lance 41;

[0041] The smelting mechanism 1 further comprises a smelting chamber 11, the molten pool 12 is arranged inside the smelting chamber 11, one end of the smelting chamber 11 is provided with a feeding port 18, one side of the feeding port 18 is provided with a spiral feeding device 2 for adding copper concentrate, the spiral feeding device 2 moves through the bottom slide rail, one side of the spiral feeding device 2 is provided with a belt feeding device 3 for conveying copper concentrate;

[0042] The bottom of the baffle plate 13 is fixedly connected to the bottom of the molten pool 12, and the upper end of the baffle plate 13 is lower than the upper end of the molten pool 12, so as to form an overflow port of the copper melt, the upper end of the reflux plate 14 is higher than the upper end of the molten pool 12, the reflux plate 14 separates the upper part of the molten pool 12, prevents the copper melt in the middle from colliding with each other, and thus facilitates the oxygen lances 41 on both sides to form a circulating effect on the copper melt;

[0043] The baffle plate 13 separates the smelting pool into a separation zone 16 and a melting zone 17, and the bottom of the separation zone 16 is provided with a molten pool outlet 15 for discharging the copper melt.

[0044] In this embodiment, the belt feeding device 3 is used to convey the copper concentrate raw material into the spiral feeding device 2, then the spiral feeding device 2 extends into the smelting chamber 11 through the feeding port 18 by the bottom slide rail, and is located above the melting zone 17, then the spiral feeding device 2 conveys the copper concentrate raw material into the melting zone 17 in the molten pool 12 after working, the baffle plate 13 prevents the copper concentrate raw material from entering the separation zone 16 from the melting zone 17, the copper concentrate raw material is melted in the molten pool 12 by heating (heating device not shown, which is prior art, and will not be described herein) through the smelting chamber 11, then the copper melt liquid level of the melting zone 17 rises, and thus overflows from above the baffle plate 13 into the separation zone 16, and the refined copper melt is discharged from the molten pool outlet 15 by controlling the valve switch.

[0045] Wherein, when the copper smelting is heated and melted, the oxygen lances 41 continuously input oxygen, and the two ends of the molten pool 12 are arranged in a semicircular shape, Figure 7As shown, the two oxygen lances 41 facing each other are staggered, when the oxygen lances 41 are below the liquid surface of the copper melt, the oxygen forms bubbles in the copper melt, and pushes the copper melt to flow, because the middle part has the backflow plate 14 to separate the left and right flowing melts, so that the copper melt can rotate circularly (as shown by the arrows in Figure 7 , the arrows are the directions of the copper melt flow), and the semicircular design at both ends of the molten pool 12 makes the circular flow smooth, the temperature difference between the edge and the center of the traditional copper static smelting pool can reach more than 200℃, the circular flow makes the temperature uniformity improve to within ±15℃, significantly reduces the risk of local overburning or cold zone solidification of the copper melt, at the same time, the copper melt flow increases the contact frequency of the reactants (such as oxygen and copper concentrate), improves the copper smelting rate.

[0046] It also needs to be explained that when the oxygen lances 41 continuously spray oxygen, the copper melt flow speed in the path of the oxygen output is accelerated, the accelerated copper melt drives the fan blade 45 to rotate, and when the fan blade 45 rotates, it will cut the oxygen bubbles formed in the copper melt, so that a single oxygen bubble is cut into multiple small oxygen bubble groups, greatly increasing the gas-copper liquid reaction interface (increasing the specific surface area), at the same time, prolonging the residence time of the bubbles in the copper melt, increasing the copper refining reaction time, and improving the oxygen utilization rate in the copper smelting process.

[0047] As shown in Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , the head of the oxygen lance 41 is provided with an anti-blocking mechanism 5, the anti-blocking mechanism 5 includes a rotating ring 51, the rotating ring 51 is rotatably sleeved on the outer wall of the head of the oxygen lance 41, a circle of blades 52 is arranged on the inner wall of the rotating ring 51, the blades 52 and the axis of the rotating ring 51 form an angle of 30 degrees, when the rotating ring 51 drives the blades 52 to rotate, a push flow effect is formed, the rotating ring 51 is fixedly connected through a fixed rod 53 and a fixed ring 54, and the fixed ring 54 is fixedly sleeved on the outside of the fan blade 45.

[0048] In this embodiment, the fan blade 45 drives the fixed ring 54 to rotate, the fixed ring 54 drives the rotating ring 51 to rotate through the fixed rod 53, and the rotating ring 51 drives the multiple blades 52 to rotate, because the blades 52 have a certain angle, they can push the copper melt when rotating, so that the copper melt flow speed around the end of the oxygen lance 41 is accelerated, thereby keeping the temperature of the end of the oxygen lance 41, preventing the end of the oxygen lance 41 from being slagged (the oxygen in the oxygen lance 41 is accessed from the outside, and the gas temperature is low, when the oxygen is sprayed out of the end of the oxygen lance 41, the end temperature is reduced, which easily adheres to the copper smelting slag to cause blockage, by increasing the copper melt flow speed around the end of the oxygen lance 41, the flowing copper melt continuously heats the end, thereby avoiding the low temperature of the end, adhering to the copper smelting slag), causing blockage, reducing the oxygen input, and reducing the copper smelting rate.

[0049] As Figure 2 , Figure 5 , Figure 7 shown, the slag discharge assembly 6 is provided in the molten pool 12, the slag discharge assembly 6 includes a slag baffle 61, the slag baffle 61 is rotatably connected between the backflow plate 14 and the side wall of the molten pool 12 at an inclined angle of 60 degrees through a support, the slag baffle 61 is driven to rotate through a servo motor 63, the servo motor 63 is fixedly connected outside the smelting chamber 11, one side of the slag baffle 61 is provided with a slag discharge channel 62 for discharging copper smelting slag;

[0050] In this embodiment, the slag baffle 61 is placed between the backflow plate 14 and the side wall of the molten pool 12 at an inclined angle (the area of the backflow plate 14 and the side wall of the molten pool 12 is the circulating flow path of the copper melt), the copper smelting slag in the copper melt will float on the liquid surface, and the copper melt will flow, as Figure 7 shown, the copper smelting slag is driven to the slag baffle 61, the slag baffle 61 is driven to rotate by the servo motor 63 at a fixed time, so that the slag baffle 61 swings the copper smelting slag into the slag discharge channel 62, the slag discharge channel 62 is inclined, and the copper smelting slag can slide out of the smelting chamber 11 along the slag discharge channel 62.

[0051] Further, a torsion sensor is installed on the drive shaft of the slag baffle 61, when the copper smelting slag accumulated on the slag baffle 61 is too much, the slag baffle 61 has a tendency to rotate, the torsion data is obtained through the torsion sensor, and when the preset value is reached, the servo motor 63 is driven to perform a once material reversing operation.

[0052] It should be noted that the oppositely arranged oxygen lance 41 makes the copper melt flow, and the copper melt drives the copper smelting slag to flow, so as to be captured by the slag baffle 61, and the overall rate of copper smelting is improved.

[0053] As Figure 1 and Figure 8 shown, the smelting chamber 11 is provided with a flue gas purification unit 7 at the end away from the feed inlet 18, the flue gas purification unit 7 includes a flue 71, the flue 71 is fixedly connected at the end of the smelting chamber 11 away from the feed inlet 18;

[0054] The flue 71 is fixedly connected with a middle shaft 73, a plurality of spiral blades 72 are fixedly connected on the middle shaft 73, the spiral blades 72 and the flue 71 have a preset angle, the plurality of spiral blades 72 form a spiral upward trend, the spiral blades 72 and the inner wall of the flue 71 have a gap, and the lower end of the flue 71 is fixedly connected with a circular truncated cone 74;

[0055] The circular cone member 74 is a cylinder that gradually narrows from bottom to top, and has the effect of guiding the copper smelting flue gas. The upper end of the circular cone member 74 is provided with an opening 75 for the flue gas to pass through. The circular cone member 74 is fixedly connected in the flue 71 in an inclined manner. The connection between the circular cone member 74 and the flue 71 forms a channel that can intercept the falling particles. The lower end of the channel is provided with a discharge port 76 for discharging the particles.

[0056] In this embodiment, the copper smelting flue gas in the smelting chamber 11 is discharged from the flue 71. The flue gas moves upward due to the high temperature. At the same time, the spiral blades 72 on the central shaft 73 in the flue 71 have an upward trend. The flue gas is guided to rotate upward by the spiral blades 72, forming a centrifugal force, so that the particles in the flue gas are thrown onto the inner wall of the flue 71. The particles and the inner wall of the flue 71 collide and then sink downward. At the same time, the spiral blades 72 and the flue 71 have a gap. The particles fall from the gap to the channel at the connection between the circular cone member 74 and the flue 71. Since the circular cone member 74 is fixedly connected in the flue 71 in an inclined manner, the particles are finally discharged from the discharge port 76. This effectively reduces the particle content in the copper smelting flue gas and reduces pollution to the environment.

[0057] The working process is as follows:

[0058] The copper concentrate raw material is conveyed to the spiral feeding equipment 2 by the belt feeding equipment 3. Then the spiral feeding equipment 2 extends the conveying end through the feed port 18 into the interior of the smelting chamber 11 through the bottom slide rail and is located above the melting area 17. Then the copper concentrate raw material is conveyed into the melting area 17 in the molten pool 12 after the spiral feeding equipment 2 works. The baffle plate 13 prevents the copper concentrate raw material from entering the separation area 16 from the melting area 17. The copper concentrate raw material is melted in the molten pool 12 by heating the smelting chamber 11. Then the copper melt liquid level of the melting area 17 rises, so as to overflow from above the baffle plate 13 into the separation area 16. The molten material is discharged from the molten material outlet 15 by controlling the valve switch. In this process, the oxygen lance 41 continuously supplies oxygen. At the same time, the two ends of the molten pool 12 are arranged in a semicircular shape, as shown in Figure 7As shown, the two oxygen lances 41 facing each other staggered, when output oxygen, oxygen forms bubbles in the copper melt, and push the copper melt flow, because the middle has backflow plate 14 to separate the left and right flow of copper melt, so that the copper melt can be circulating rotation, while the half circle design at both ends of the molten pool 12 makes the circulating flow unobstructed, the temperature difference between the edge and the center of the traditional copper static smelting pool can reach more than 200℃, the circulating flow makes the temperature uniformity improve to ± 15℃, significantly reduces the risk of local overburning or cold zone solidification of copper melt, at the same time, the copper melt flow makes the contact frequency of reactants (such as oxygen, copper concentrate) increase, improves the copper smelting rate. At the same time, the oxygen lance 41 continuously spouts oxygen, which makes the copper melt flow speed of the oxygen output path faster, and the accelerated copper melt drives the fan blade 45 to rotate. The fan blade 45 rotates and cuts the oxygen bubbles formed in the copper melt, so that a single oxygen bubble is cut into a plurality of small oxygen bubble groups, greatly increasing the gas-copper liquid reaction interface (increasing the specific surface area), while prolonging the residence time of the bubbles in the copper melt, increasing the copper refining reaction time, and improving the oxygen utilization rate in the copper smelting process. When the copper melt flows, the slag baffle 61 is arranged between the backflow plate 14 and the side wall of the molten pool 12 at an inclined angle (the side wall region of the backflow plate 14 and the molten pool 12 is the circulating flow path of the copper melt), the copper smelting slag in the copper melt will float on the liquid surface, and the copper melt will drive the copper smelting slag to flow, such as Figure 7 As shown, the copper smelting slag is brought to the slag baffle 61, the servo motor 63 drives the slag baffle 61 to rotate at regular time, so that the slag baffle 61 swings the copper smelting slag into the slag discharge channel 62, the slag discharge channel 62 is arranged obliquely, and the copper smelting slag can slide out of the smelting chamber 11 along the slag discharge channel 62. The copper smelting flue gas in the smelting chamber 11 is discharged from the flue 71, and the flue gas moves upward due to high temperature. At the same time, the spiral blade 72 on the central shaft 73 in the flue 71 has an upward trend, and the flue gas is guided to rotate upward after passing through the spiral blade 72, forming a centrifugal force, so that the particles in the flue gas are thrown to the inner wall of the flue 71. After the particles collide with the inner wall of the flue 71, they sink downward. At the same time, the spiral blade 72 and the flue 71 have a gap, and the particles fall from the gap to the channel at the connection between the circular table part 74 and the flue 71. Since the circular table part 74 is fixedly connected to the flue 71 at an inclined angle, the particles are finally discharged from the discharge port 76, effectively reducing the particle content in the copper smelting flue gas and reducing the pollution to the environment.

[0059] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A copper oxygen-enriched side-blown refining apparatus, comprising a smelting mechanism (1), characterized in that, The smelting mechanism (1) includes a molten pool (12), a baffle plate (13) is fixedly connected inside the molten pool (12), a return plate (14) is fixedly connected to the baffle plate (13), an oxygen-enriched side-blowing mechanism (4) is provided inside the molten pool (12), the oxygen-enriched side-blowing mechanism (4) includes two external oxygen nozzles (41), the two oxygen nozzles (41) are fixedly connected to the front and rear ends of the molten pool (12) respectively, and the oxygen nozzles (41) are fixedly connected to the left and right sides of the molten pool (12) respectively. When the two oxygen nozzles (41) work at the same time, the copper melt in the molten pool (12) is rotated in a circular manner. A fixed plate (42) is fixedly connected to the oxygen nozzle (41), and a connecting plate (43) is fixedly connected to the fixed plate (42) through a connecting rod (44). A fan blade (45) is provided in the middle of the connecting plate (43), and the fan blade (45) is located on the oxygen delivery path of the oxygen nozzle (41). The bottom of the baffle plate (13) is fixedly connected to the bottom of the molten pool (12). The upper end of the baffle plate (13) is lower than the upper end of the molten pool (12), thus forming an overflow port of the melt. The upper end of the return plate (14) is higher than the upper end of the molten pool (12). The return plate (14) separates the upper part of the molten pool (12) to prevent the melt in the middle from colliding with each other, thereby facilitating the circulation effect of the relative oxygen nozzles (41) on the copper melt. The baffle plate (13) divides the smelting pool into two parts: a separation zone (16) and a melting zone (17). The bottom of the separation zone (16) is provided with a copper melt outlet (15) for melt discharge.

2. The oxygen-enriched side-blown refining equipment for metallic copper as described in claim 1, characterized in that, The smelting mechanism (1) also includes a smelting chamber (11), the molten pool (12) is located inside the smelting chamber (11), one end of the smelting chamber (11) is provided with a feed inlet (18), and a spiral feeding device (2) for adding copper concentrate is provided on one side of the feed inlet (18). The spiral feeding device (2) moves by means of a bottom slide rail, and a belt feeding device (3) for conveying copper concentrate is provided on one side of the spiral feeding device (2).

3. The oxygen-enriched side-blown refining equipment for metallic copper as described in claim 1, characterized in that, The head of the oxygen nozzle (41) is provided with an anti-clogging mechanism (5). The anti-clogging mechanism (5) includes a rotating ring (51). The rotating ring (51) is rotatably sleeved on the outer wall of the head of the oxygen nozzle (41). A ring of blades (52) is provided on the inner wall of the rotating ring (51). The axis of the blades (52) and the rotating ring (51) forms a 30-degree angle. When the rotating ring (51) drives the blades (52) to rotate, a propulsion effect is formed. The rotating ring (51) is fixedly connected by a fixing rod (53) and a fixing ring (54). The fixing ring (54) is fixedly sleeved on the outside of the fan blade (45).

4. The oxygen-enriched side-blown refining equipment for metallic copper as described in claim 2, characterized in that, The molten pool (12) is provided with a slag discharge assembly (6), which includes a slag baffle plate (61). The slag baffle plate (61) is rotatably connected between the reflux plate (14) and the side wall of the molten pool (12) by a bracket at a 60-degree angle. The slag baffle plate (61) is driven to rotate by a servo motor (63), which is fixedly connected to the outside of the smelting chamber (11). A slag discharge channel (62) for discharging copper smelting slag is provided on one side of the slag baffle plate (61).

5. The oxygen-enriched side-blown refining equipment for metallic copper as described in claim 2, characterized in that, A flue gas purification unit (7) is provided at one end of the smelting chamber (11) away from the feed inlet (18). The flue gas purification unit (7) includes a flue (71) which is fixedly connected to the end of the smelting chamber (11) away from the feed inlet (18).

6. The oxygen-enriched side-blown refining equipment for metallic copper as described in claim 5, characterized in that, A central shaft (73) is fixedly connected inside the flue (71), and multiple spiral blades (72) are fixedly connected on the central shaft (73). The spiral blades (72) and the flue (71) have a preset angle, and the multiple spiral blades (72) form a spiral upward trend. There is a gap between the spiral blades (72) and the inner wall of the flue (71). A frustum component (74) is fixedly connected to the lower end of the flue (71).

7. The oxygen-enriched side-blown refining equipment for metallic copper as described in claim 6, characterized in that, The truncated cone (74) is a cylinder that gradually narrows from bottom to top, which serves to guide the flow of copper smelting flue gas. The upper end of the truncated cone (74) is provided with an opening (75) for the flue gas to pass through. The truncated cone (74) is inclined and fixedly connected in the flue (71). The connection between the truncated cone (74) and the flue (71) forms a channel that can intercept falling particles. The lower end of the channel is provided with a discharge port (76) for discharging particles.

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