High-efficiency blowing method and blowing device for lead matte

Abstract

The efficient converting device comprises a base, a converting furnace and a crushing box are fixedly mounted on the two sides of the top of the base correspondingly, a mounting box is fixedly mounted on one side of the converting furnace, and a transmission motor is fixedly mounted at the position, close to the center, of the inner bottom of the mounting box; and a reciprocating lead screw is arranged on the side, corresponding to the transmission motor, in the mounting box. According to the efficient blowing method and blowing device for the lead copper matte, through the design of the crushing box, the crushing motor, the crushing rollers, the discharging opening, the screening plate, the vibration motor and the spring, the lead copper matte is crushed and screened before blowing, the lead copper matte which is not crushed completely can be screened out so that secondary screening can be carried out on the lead copper matte, and the blowing efficiency is improved. The completely crushed lead copper matte can directly enter the converting furnace, and the consistency of the size and the shape of the lead copper matte can be ensured through the arranged crushing and screening functions, so that the lead copper matte can be uniformly molten and mixed in the converting process.

Description

Technical Field

[0001] The invention relates to the technical field of lead matte blowing, and in particular to a high-efficiency lead matte blowing method and a blowing device. Background Art

[0002] Lead matte blowing is the last step in the production of crude copper by pyrometallurgy. In this process, in addition to removing iron and sulfur, other harmful impurities in matte are further reduced through slagging and volatilization to prevent or reduce these impurities from entering the crude copper. In addition, this process will also make precious metals (such as gold, silver and platinum group elements) and valuable metals such as nickel enriched in crude copper or high-grade matte as much as possible, so as to be recovered in the subsequent electrolytic refining.

[0003] In the current lead matte blowing process, the position of oxygen input is mostly fixed, which may lead to uneven distribution of oxygen in the molten lead matte, and also lead to insufficient utilization of oxygen, resulting in energy waste and increased production costs, affecting blowing efficiency and product quality. At the same time, the lead matte is not crushed and screened before blowing, so the unbroken lead matte may lead to uneven distribution of oxygen, affecting blowing efficiency and product quality, prolonging the blowing time and reducing production efficiency. Therefore, we propose a high-efficiency lead matte blowing method and blowing device. Summary of the invention

[0004] The object of the present invention is to provide a high-efficiency blowing method and blowing device for lead matte to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-efficiency lead matte blowing device, comprising a base, a blowing furnace and a crushing box are fixedly installed on both sides of the top of the base, a mounting box is fixedly installed on one side of the blowing furnace, a transmission motor is fixedly installed at a center position of the bottom of the mounting box, a reciprocating screw is arranged on one side of the mounting box corresponding to the transmission motor, a screw nut is threadedly connected to the bottom position of the surface of the reciprocating screw, a lifting plate is fixedly installed on one side of the screw nut, an oxygen generator body is fixedly installed on the upper end of the lifting plate, an air pump is fixedly installed on the top of one side of the lifting plate, the oxygen generator body is fixedly connected with an output pipe through the output end at the top thereof, the upper end of the output pipe is fixedly connected with the suction end at the bottom of the air pump, a protective shell is fixedly installed on the top of the blowing furnace and the mounting box, the air pump is fixedly connected with an air supply pipe through the exhaust end at the top thereof, and one end of the air supply pipe passes through the mounting box, the protective shell and The cam is provided with a plurality of rollers, each of which has a plurality of rollers connected to the rollers, and the plurality of rollers are connected to the plurality of rollers have rollers connected to the rollers.

[0006] Preferably, the upper and lower ends of the reciprocating screw are movably connected to bearings fixedly installed at one side of the top and bottom of the installation box respectively, the transmission motor is fixedly connected to a driving gear through an output end on one side thereof, and a driven gear is fixedly installed at a bottom position on the surface of the reciprocating screw, and the driving gear is meshingly connected to the driven gear.

[0007] Preferably, slide grooves are opened in the center of both sides of the installation box, and sliders are fixedly installed at the center and bottom of the side opposite to the screw nut and the lifting plate. The opposite sides of the two sliders respectively penetrate into the interior of the two slide grooves and are slidably connected with the inner walls of the slide grooves.

[0008] Preferably, both sides of the surface of the air pipe are provided with stabilizing sleeves, the inner wall of the stabilizing sleeves is rollingly mounted with balls, the surface of the balls contacts the surface of the air pipe, and the opposite sides of the two stabilizing sleeves are fixedly connected to the inner wall of the protective shell.

[0009] Preferably, one side of the two crushing rollers is movably connected to bearings fixedly installed at the front end and the rear end of the top of one side of the crushing box, respectively; the crushing motor is fixedly connected to a main shaft through an output end on one side thereof; one end of the two main shafts passes through the interior of the crushing box and is fixedly connected to one side of the two crushing rollers, respectively.

[0010] Preferably, an electric cylinder is fixedly mounted on the bottom of the support block, a baffle is fixedly mounted on the bottom of one side of the electric cylinder, one side of the baffle contacts the inner wall of the crushing box, and a feed hopper is fixedly connected to the center of the top of the crushing box.

[0011] Preferably, an induced draft fan and a waste gas treatment device are fixedly installed on both sides of the upper end of the blowing furnace, the induced draft fan is fixedly connected to an intake pipe through the input end of the front surface thereof, and the lower end of the intake pipe passes through the interior of the blowing furnace, and the induced draft fan is fixedly connected to an intake pipe through the input end of the top thereof, and one end of the intake pipe passes through the interior of the waste gas treatment device.

[0012] A method for efficiently blowing lead matte comprises the following steps:

[0013] Step 1: Turn on the crushing motor and the vibration motor at the same time, and then add the lead matte into the crushing box through the feed hopper. The two crushing motors drive the two crushing rollers to crush the lead matte at the same time. The crushed lead matte falls onto the screening plate, and the screening plate is shaken by the cooperation of the vibration motor and the spring. The crushed lead matte passes through the screening plate and falls onto the sliding plate. The baffle is used to block the lead matte, and the incompletely crushed lead matte will fall out through the discharge port along the slope of the screening plate. The operator collects the fallen lead matte and adds it to the crushing box for secondary crushing until the lead matte is completely crushed.

[0014] Step 2: Control the electric cylinder to pull the baffle plate upward and open the feed port. At this time, the screened lead matte follows the slope of the sliding plate into the blowing furnace. Then control the electric cylinder to drive the baffle plate downward and close the feed port. Then stop the crushing motor and vibration motor and start the transmission motor oxygen machine body, air pump and induced draft fan at the same time.

[0015] Step three: the oxygen generator body generates oxygen and delivers the oxygen from the air nozzle at the end of the gas pipe into the blowing furnace for blowing through an air pump. During the blowing process, the transmission motor drives the driving gear to engage with the driven gear to rotate, and the driven gear drives the reciprocating screw to rotate. At this time, the screw nut drives the air nozzle to move vertically back and forth in the blowing furnace as the reciprocating screw rotates, thereby increasing the dispersion and uniformity of oxygen, allowing the oxygen to be better mixed with the lead liquid, and promoting the oxidation reaction.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The high-efficiency blowing method and blowing device of lead matte, through the design of a crushing box, a crushing motor, a crushing roller, a discharge port, a screening plate, a vibration motor and a spring, crushes and screens the lead matte before blowing, and the lead matte that has not been crushed completely can be screened out for secondary screening, and the crushed and complete lead matte can directly enter the blowing furnace. The crushing and screening functions are set to ensure the consistency of the size and shape of the lead matte, which can ensure that the melting and mixing of the lead matte are uniform during the blowing process, thereby ensuring the consistency of the final product. The design of the transmission motor, reciprocating screw, screw nut, lifting plate and air pipe can control the transmission motor to make the screw nut move vertically back and forth with the reciprocating screw, thereby driving the air pipe and the air nozzle to perform reciprocating blowing in the blowing furnace. The reciprocating movement mechanism is set to increase the dispersion and uniformity of oxygen, so that oxygen can be better mixed with the lead liquid, thereby promoting the oxidation reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 A is a partial enlarged schematic diagram;

[0020] Figure 3 For the present invention Figure 1 A partial enlarged schematic diagram of B in the middle;

[0021] Figure 4 It is a structural stereogram of the lifting plate of the present invention;

[0022] Figure 5 This is a right side view of the structure of the crushing box of the present invention;

[0023] Figure 6 It is the front view of the structure of the present invention.

[0024] In the figure: 1. base; 2. refining furnace; 3. crushing box; 4. installation box; 5. transmission motor; 6. driving gear; 7. reciprocating screw; 8. driven gear; 9. screw nut; 10. lifting plate; 11. slide; 12. slide block; 13. oxygen generator body; 14. air pump; 15. protective shell; 16. air pipe; 17. stabilizing sleeve; 18. ball; 19. air nozzle; 20. isolation mesh plate; 21. crushing motor; 22. crushing roller; 23. discharge port; 24. screening plate; 25. vibration motor; 26. support block; 27. spring; 28. feed port; 29. ​​slide plate; 30. electric cylinder; 31. baffle; 32. feed hopper; 33. exhaust gas treatment device; 34. induced draft fan. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-6 The present invention provides a technical solution: a high-efficiency lead matte blowing device, comprising a base 1, a blowing furnace 2 and a crushing box 3 are fixedly installed on both sides of the top of the base 1, a mounting box 4 is fixedly installed on one side of the blowing furnace 2, a transmission motor 5 is fixedly installed at the center position of the bottom of the mounting box 4, a reciprocating screw 7 is arranged on the side of the mounting box 4 corresponding to the transmission motor 5, a screw nut 9 is threadedly connected to the bottom position of the surface of the reciprocating screw 7, and a lifting plate 10 is fixedly installed on one side of the screw nut 9. An oxygen concentrator body 13 is fixedly installed on the upper end of the lifting plate 10, and an air pump 14 is fixedly installed on the top of one side of the lifting plate 10. The oxygen concentrator body 13 is fixedly connected to an output pipe through the output end at the top thereof, and the upper end of the output pipe is fixedly connected to the suction end at the bottom of the air pump 14. A protective shell 15 is fixedly installed on the top of the refining furnace 2 and the installation box 4. The air pump 14 is fixedly connected to an air delivery pipe 16 through the exhaust end at the top thereof. One end of the air delivery pipe 16 passes through the interior of the installation box 4, the protective shell 15 and the refining furnace 2 in sequence, and the air delivery pipe 16 is connected to the exhaust end of the top thereof. An air nozzle 19 is fixedly installed at the end of the air pipe 16, an isolation mesh plate 20 is fixedly installed at one side of the blowing furnace 2, a crushing motor 21 is fixedly installed at the front end and the rear end of the top of one side of the crushing box 3, a crushing roller 22 is arranged at the front end and the rear end of the top of one side of the crushing box 3, a discharge port 23 is opened on the outer wall of the crushing box 3 corresponding to the lower end of the crushing motor 21, a support block 26 is fixedly connected to the center of one side of the crushing box 3, and the front end of the top of the support block 26 is fixedly connected to the center of the one side of the crushing box 3. The front section and the rear end are fixedly connected to the bottom of the discharge port 23 with springs 27, the upper ends of the four springs 27 are fixedly installed with a screening plate 24, one side of the screening plate 24 passes through to the outside of the discharge port 23, and a vibration motor 25 is fixedly installed on one side of the bottom of the screening plate 24. A feed port 28 is opened at the bottom position on the side opposite to the crushing box 3 of the blowing furnace 2, and a sliding plate 29 is fixedly installed at the bottom position on one side of the crushing box 3, and one end of the sliding plate 29 passes through the interior of the two discharge ports 23 in sequence.

[0027] The upper and lower ends of the reciprocating screw 7 are movably connected to bearings fixedly installed at one side of the top and bottom of the installation box 4 respectively. The transmission motor 5 is fixedly connected to a driving gear 6 through an output end on one side thereof. A driven gear 8 is fixedly installed at a bottom position on the surface of the reciprocating screw 7. The driving gear 6 is meshed with the driven gear 8. When the transmission motor 5 is running, the reciprocating screw 7 can be driven to rotate by meshing the driving gear 6 with the driven gear 8.

[0028] Slide grooves 11 are provided in the center of both sides of the installation box 4, and sliders 12 are fixedly installed in the center and bottom of the side opposite to the screw nut 9 and the lifting plate 10. The opposite sides of the two sliders 12 respectively penetrate into the interior of the two slide grooves 11 and are slidably connected with the inner walls of the slide grooves 11, thereby ensuring the stability of the lifting plate 10 during vertical movement.

[0029] Both sides of the surface of the air pipe 16 are provided with stabilizing sleeves 17, and the inner wall of the stabilizing sleeve 17 is rollingly installed with balls 18, and the surface of the balls 18 contacts the surface of the air pipe 16. The opposite sides of the two stabilizing sleeves 17 are fixedly connected to the inner wall of the protective shell 15, ensuring the stability of the air pipe 16 during vertical reciprocating movement.

[0030] One side of the two crushing rollers 22 is movably connected to bearings fixedly installed at the front end and the rear end of the top of one side of the crushing box 3, respectively. The crushing motor 21 is fixedly connected to the main shaft through the output end of one side thereof. One end of the two main shafts passes through the interior of the crushing box 3 and is fixedly connected to one side of the two crushing rollers 22, respectively, to support the crushing rollers 22 when they rotate.

[0031] An electric cylinder 30 is fixedly installed at the bottom of the support block 26, and a baffle 31 is fixedly installed at the bottom of one side of the electric cylinder 30. One side of the baffle 31 contacts the inner wall of the crushing box 3. A feed hopper 32 is fixedly connected to the center of the top of the crushing box 3. The baffle 31 can block the discharge port 23 to prevent exhaust gas from being discharged.

[0032] An induced draft fan 34 and an exhaust gas treatment device 33 are fixedly installed on both sides of the upper end of the blowing furnace 2. The induced draft fan 34 is fixedly connected to an intake pipe through the input end of the front surface thereof, and the lower end of the intake pipe passes through the interior of the blowing furnace 2. The induced draft fan 34 is fixedly connected to an intake pipe through the input end of the top thereof, and one end of the intake pipe passes through the interior of the exhaust gas treatment device 33, so that the generated exhaust gas can be extracted and filtered for purification.

[0033] A method for efficiently blowing lead matte comprises the following steps:

[0034] Step one, start the crushing motor 21 and the vibration motor 25 at the same time, and then add the lead matte into the crushing box 3 through the feed hopper 32, and the two crushing motors 21 simultaneously drive the two crushing rollers 22 to crush the lead matte, and the crushed lead matte falls onto the screening plate 24, and the screening plate 24 is shaken by the cooperation of the vibration motor 25 and the spring 27, and the crushed lead matte passes through the screening plate 24 and falls onto the sliding plate 29, and is blocked by the baffle 31. The incompletely crushed lead matte will fall out through the discharge port 23 along the slope of the screening plate 24, and the operator will collect the fallen lead matte and add it to the crushing box 3 for secondary crushing until the lead matte is completely crushed.

[0035] Step 2: Control the electric cylinder 30 to pull the baffle 31 upward and open the feed port 28. At this time, the screened lead matte follows the slope of the sliding plate 29 into the blowing furnace 2. Then control the electric cylinder 30 to drive the baffle 31 to move downward and close the feed port 28. Then stop the crushing motor 21 and the vibration motor 25 and start the transmission motor 5 oxygen generator body 13, air pump 14 and induced draft fan 34 at the same time.

[0036] Step three, the oxygen generator body 13 generates oxygen and delivers the oxygen from the air nozzle 19 at the end of the air pipe 16 into the blowing furnace 2 for blowing through the air pump 14. During the blowing process, the transmission motor 5 drives the driving gear 6 to engage the driven gear 8 to rotate, and the driven gear 8 drives the reciprocating screw 7 to rotate. At this time, the screw nut 9 drives the air nozzle 19 to move vertically back and forth in the blowing furnace 2 as the reciprocating screw 7 rotates, thereby increasing the dispersion and uniformity of the oxygen, allowing the oxygen to be better mixed with the lead liquid, and promoting the oxidation reaction.

[0037] In summary, the lead matte efficient blowing method and blowing device, through the design of the crushing box 3, the crushing motor 21, the crushing roller 22, the discharge port 23, the screening plate 24, the vibration motor 25 and the spring 27, before the blowing, the lead matte is crushed and screened, the unbroken lead matte can be screened out for secondary screening, and the crushed lead matte can be directly put into the blowing furnace 2. The size and shape of the lead matte can be ensured to be consistent through the provided crushing and screening functions, which can ensure that the lead matte is not broken and not broken. During the refining process, the lead matte is melted and mixed evenly, thereby ensuring the consistency of the final product. The design of the transmission motor 5, reciprocating screw 7, screw nut 9, lifting plate 10 and air pipe 16 can control the transmission motor 5 to make the screw nut 9 move vertically back and forth with the reciprocating screw 7, thereby driving the air pipe 16 and the air nozzle 19 to perform reciprocating blowing in the refining furnace 2. The reciprocating movement mechanism can increase the dispersion and uniformity of oxygen, so that oxygen can be better mixed with the lead liquid, thereby promoting the oxidation reaction.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency lead matte blowing device, comprising a base (1), characterized in that: The top sides of the base (1) are respectively fixedly mounted with a blowing furnace (2) and a crushing box (3); one side of the blowing furnace (2) is fixedly mounted with a mounting box (4); a transmission motor (5) is fixedly mounted at a center position of the bottom of the mounting box (4); a reciprocating screw (7) is arranged on a side of the mounting box (4) corresponding to the transmission motor (5); a screw nut (9) is threadedly connected to the bottom position of the surface of the reciprocating screw (7); a lifting plate (10) is fixedly mounted on one side of the screw nut (9); and an oxygen concentrator body (1) is fixedly mounted on the upper end of the lifting plate (10). 3), an air pump (14) is fixedly installed on the top of one side of the lifting plate (10), an output pipe is fixedly connected to the output end of the oxygen concentrator body (13) at the top thereof, and the upper end of the output pipe is fixedly connected to the suction end of the bottom of the air pump (14), a protective shell (15) is fixedly installed on the top of the refining furnace (2) and the installation box (4), and an air delivery pipe (16) is fixedly connected to the exhaust end of the top of the air pump (14), one end of the air delivery pipe (16) passes through the interior of the installation box (4), the protective shell (15) and the refining furnace (2) in sequence, and the end of the air delivery pipe (16) is fixedly installed The invention relates to a blow furnace (2) having an air jet nozzle (19), an isolation mesh plate (20) is fixedly installed at a position close to one side of the blow furnace (2), a crushing motor (21) is fixedly installed at a front end position and a rear end position of a top of one side of the crushing box (3), a crushing roller (22) is arranged at a front end position and a rear end position of a top of one side of the crushing box (3), a discharge port (23) is opened on the outer wall of the crushing box (3) corresponding to the lower end of the crushing motor (21), a support block (26) is fixedly connected at a center position of one side of the crushing box (3), and the front end and the rear end of the top of the support block (26) are connected to the discharge port. The front section and the rear end of the inner bottom of (23) are fixedly connected with springs (27), and the upper ends of the four springs (27) are fixedly installed with a screening plate (24), one side of the screening plate (24) passes through to the outside of the discharge port (23), and a vibration motor (25) is fixedly installed on one side of the bottom of the screening plate (24). A feed port (28) is provided at the bottom position of the side opposite to the crushing box (3) of the blowing furnace (2), and a sliding plate (29) is fixedly installed at the bottom position of one side of the crushing box (3), and one end of the sliding plate (29) passes through the inside of the two discharge ports (23) in sequence.

2. The high-efficiency lead matte blowing device according to claim 1, characterized in that: The upper end and the lower end of the reciprocating screw (7) are movably connected to bearings fixedly installed at one side of the top and bottom of the installation box (4), respectively; the transmission motor (5) is fixedly connected to a driving gear (6) through an output end on one side thereof; a driven gear (8) is fixedly installed at a bottom position on the surface of the reciprocating screw (7); and the driving gear (6) is meshingly connected to the driven gear (8).

3. The high-efficiency lead matte blowing device according to claim 1, characterized in that: Slide grooves (11) are provided at the center of both sides of the installation box (4), and sliders (12) are fixedly installed at the center and bottom of the side opposite to the lifting plate (10) of the lead screw nut (9), and the opposite sides of the two sliders (12) respectively penetrate into the interior of the two slide grooves (11) and are slidably connected to the inner walls of the slide grooves (11).

4. The high-efficiency lead matte blowing device according to claim 1, characterized in that: Both sides of the surface of the gas pipe (16) are sleeved with stabilizing sleeves (17), and the inner wall of the stabilizing sleeve (17) is rollingly mounted with a ball (18), the surface of the ball (18) is in contact with the surface of the gas pipe (16), and the opposite sides of the two stabilizing sleeves (17) are fixedly connected to the inner wall of the protective shell (15).

5. The high-efficiency lead matte blowing device according to claim 1, characterized in that: One side of the two crushing rollers (22) is movably connected to bearings fixedly installed at the front end and the rear end of the top of one side of the crushing box (3), and the crushing motor (21) is fixedly connected to a main shaft through an output end of one side thereof. One end of the two main shafts penetrates into the interior of the crushing box (3) and is fixedly connected to one side of the two crushing rollers (22).

6. The high-efficiency lead matte blowing device according to claim 1, characterized in that: An electric cylinder (30) is fixedly mounted on the bottom of the support block (26), a baffle (31) is fixedly mounted on the bottom of one side of the electric cylinder (30), one side of the baffle (31) contacts the inner wall of the crushing box (3), and a feed hopper (32) is fixedly connected to the center of the top of the crushing box (3).

7. The high-efficiency lead matte blowing device according to claim 1, characterized in that: An induced draft fan (34) and an exhaust gas treatment device (33) are fixedly installed on both sides of the upper end of the refining furnace (2). The induced draft fan (34) is fixedly connected to an air intake pipe through the input end of its front surface, and the lower end of the air intake pipe passes through the interior of the refining furnace (2). The induced draft fan (34) is fixedly connected to an air intake pipe through the input end of its top, and one end of the air intake pipe passes through the interior of the exhaust gas treatment device (33).

8. A method for efficiently converting lead matte according to any one of claims 1 to 7, characterized in that: The steps include: Step 1, simultaneously start the crushing motor (21) and the vibration motor (25), then add the lead matte into the crushing box (3) through the feed hopper (32), the two crushing motors (21) simultaneously drive the two crushing rollers (22) to crush the lead matte, the crushed lead matte falls onto the screening plate (24), the screening plate (24) is shaken by the cooperation of the vibration motor (25) and the spring (27), the crushed lead matte passes through the screening plate (24) and falls onto the sliding plate (29), the baffle (31) is used to block the lead matte, the incompletely crushed lead matte will fall out through the discharge port (23) along the slope of the screening plate (24), the operator collects the fallen lead matte and adds it to the crushing box (3) for secondary crushing, until the lead matte is completely crushed; Step 2: Control the electric cylinder (30) to pull the baffle (31) upward and open the feed port (28). At this time, the screened lead matte follows the slope of the sliding plate (29) into the blowing furnace (2). Then control the electric cylinder (30) to drive the baffle (31) downward and close the feed port (28). Then stop the crushing motor (21) and the vibration motor (25) and start the transmission motor (5), the oxygen generator body (13), the air pump (14) and the induced draft fan (34) at the same time. Step 3: The oxygen generator body (13) generates oxygen and delivers the oxygen from the air nozzle (19) at the end of the air pipe (16) to the blowing furnace (2) for blowing through the air pump (14). During the blowing process, the transmission motor (5) drives the driving gear (6) to engage with the driven gear (8) to rotate, and the driven gear (8) drives the reciprocating screw (7) to rotate. At this time, the screw nut (9) drives the air nozzle (19) to move vertically back and forth in the blowing furnace (2) as the reciprocating screw (7) rotates, thereby increasing the dispersion and uniformity of the oxygen, allowing the oxygen to be better mixed with the lead liquid, and promoting the oxidation reaction.

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