Heating device for a converter for the smelting of secondary lead

Abstract

The present application relates to a kind of heating device of regenerative lead smelting converter, belong to regenerative lead smelting technical field.The heating equipment further includes shell, the water inlet pipe is installed in the outer wall of one side of the shell, the water outlet pipe is installed in the top of the water inlet pipe, the natural gas pipe is installed in one end of the shell, the inner bag is installed in the inner wall of the shell, the heat dissipation box is installed in the bottom of the shell, the heat dissipation port is opened in one side of the heat dissipation box;The inner wall of the inner bag is installed with mixed combustion subassembly.The present application is ignited and is sprayed after being fully mixed with natural gas and combustion-supporting gas, oxygen, is disturbed and rectified by rotating barrel inner blade, flame is uniform and stable, is heated evenly;With the rotation of converter, gear is driven to accelerate driving fan blade and rotating barrel, pure mechanical transmission is without motor, failure rate is low under high temperature;Clamping force can be adjusted to adapt to different furnace mouth, water cooling and heat dissipation box and heat insulation ring cooling leak-proof, compact structure.

Description

Technical Field

[0001] This invention relates to the field of recycled lead smelting technology, and in particular to a heating device for a converter used in recycled lead smelting. Background Technology

[0002] Recycled lead smelting involves refining the lead from waste lead-acid batteries for reuse. The most commonly used equipment for refining recycled lead is a converter. Waste lead paste and lead blocks are poured into the converter, which rotates and heats the lead, allowing it to slowly melt and flow out.

[0003] In existing technologies, the mixing of natural gas and combustion-supporting gas is not uniform enough, and the oxygen supply direction is relatively singular. When natural gas burns in the combustion chamber, it is not sufficient. At the same time, the air inlet and outlet of existing equipment are mostly self-aspirating air inlets, and they rely on the injection pressure of natural gas for ignition. When the air intake efficiency and ignition intensity are insufficient, it leads to some fuel waste and slow heating time. Therefore, the fuel combustion efficiency, thermal energy utilization rate and the efficiency of recycled lead smelting are not high enough.

[0004] Therefore, this application provides a heating device for a converter used in recycled lead smelting to meet the requirements. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a heating device for a converter for recycled lead smelting, so as to solve the problems of insufficient uniformity of natural gas and combustion-supporting gas mixing, relatively single oxygen supply direction, and the fact that the air inlet and outlet of the existing equipment are mostly self-aspirating air inlet and rely on the ejection pressure of natural gas for ignition. When the air intake efficiency and ignition intensity are insufficient, the efficiency of fuel thermal energy conversion and recycled lead smelting is not high.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a heating device for a converter for recycled lead smelting, comprising a heating device, the heating device further comprising a shell, an inlet pipe installed at the rear end of the top of the shell, an outlet pipe installed at the front end of the top of the shell, a natural gas pipe installed at one end of the shell, an inner liner installed on the inner wall of the shell, a heat dissipation box installed at the bottom of the shell, and a heat dissipation vent opened on one side of the heat dissipation box; a mixing combustion assembly installed on the inner wall of the inner liner; a flame-spraying clamp assembly installed on the inner wall of the inner liner; and a transmission mechanism installed at the bottom of the inner liner. The components include: a rotating barrel, the outer wall of which is rotatably supported on the inner wall of the inner liner by multiple sets of bearings; multiple sets of second turbofans are installed on the inner wall of the rotating barrel, the outer ends of the guide vanes of the multiple sets of second turbofans are installed on the inner wall of the rotating barrel; a first toothed ring is installed at one end of the rotating barrel; and a mixing combustion assembly includes a mixing chamber, which is installed on one side of the inner wall of the inner liner; a ventilation plate is installed at one end of the mixing chamber; and a first air inlet pipe is installed at the top of the mixing chamber, the first air inlet pipe being connected to the combustion-supporting gas and leading to the mixing chamber.

[0007] Optionally, the first air intake pipe is also installed on one side of the outer wall of the inner liner, a jet ring is installed at the bottom of the first air intake pipe, an isolation plate is installed at the other end of the mixing chamber, a conical vent is installed on one side of the isolation plate, a turbofan housing is installed on one side of the isolation plate, and one end of the natural gas pipe is installed on one side of the isolation plate.

[0008] Optionally, the inner liner and the outer shell are provided with a cooling interlayer at the front and rear ends, and are connected to the opposite end away from the water inlet pipe and the water outlet pipe. The bottom of the water inlet pipe is connected to the cooling interlayer, and the bottom of the water outlet pipe is also connected to the cooling interlayer. The cooling interlayer is filled with cooling water.

[0009] Optionally, a first turbofan is installed on the inner wall of the turbofan housing, a protective plate is installed at one end of the turbofan housing, the protective plate is installed on the inner wall of one end of the inner liner, and the protective plate is sleeved on the outer surface of the natural gas pipe. An igniter is installed on the top outer wall of the inner liner.

[0010] Optionally, the igniter penetrates the inner liner, and a second air intake pipe is installed on the top outer wall of the inner liner. The second air intake pipe is connected to oxygen and leads to the middle of the inner liner. An air jet rod is installed at the bottom of the second air intake pipe.

[0011] Optionally, a second toothed ring is mounted on the outer surface of one end of the outer shell via a bearing, and an elastic telescopic rod is mounted on the top of the second toothed ring. A gear adjustment sleeve is sleeved on the outer surface of the elastic telescopic rod. Multiple sets of holes are vertically opened at the front end of the gear adjustment sleeve, and bolts and pins are installed in the holes. A clamping plate is mounted on the top of the elastic telescopic rod, and a perforated heat insulation ring is mounted on one end of the outer shell. One end of the perforated heat insulation ring is attached to the converter mouth.

[0012] Optionally, the transmission assembly includes a first gear, the top of which is meshed with the bottom of a second gear ring, a first rotating shaft nested at the center of the first gear, the first rotating shaft being mounted on the bottom of the inner liner via two sets of bearings, a second gear sleeved in the middle of the first rotating shaft, and a fan mounted at one end of the first rotating shaft.

[0013] Optionally, a third gear is meshed at the top of the second gear, and a second rotating shaft is nested at the center of the third gear. The second rotating shaft is installed at the bottom of the inner liner via two sets of bearings and a base.

[0014] Optionally, a first helical gear is sleeved on one end of the second rotating shaft, a second helical gear is meshed on one side of the first helical gear, a third rotating shaft is nested at the center of the second helical gear, the third rotating shaft is mounted on one side of the isolation plate via two sets of bearings and the base, and the third rotating shaft is inserted into a hole opened at the bottom of the turbofan housing.

[0015] Optionally, a third helical gear is sleeved on the other end of the third rotating shaft, and a fourth helical gear is meshed on one side of the third helical gear. The fourth helical gear is mounted on the shaft of the first turbofan, and a fourth gear is sleeved on the other end of the second rotating shaft. The top of the fourth gear is meshed with the bottom of the first gear ring through a hole opened at the bottom of the inner liner.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, after natural gas and combustion-supporting gas are fully mixed in the mixing chamber, they are accelerated through a conical constriction to form a swirling jet. Before ignition, oxygen is added to further optimize the ratio, making combustion more complete and the flame temperature high and stable. This solves the problems of incomplete combustion and fluctuating flame size caused by uneven mixing. After combustion, the flame enters a rotatable rotating drum. The turbine blades on the inner wall of the drum rotate synchronously with the rotating drum, disturbing and rectifying the flame, so that the flame is evenly distributed before being injected into the converter. This solves the problems of local overheating and uneven heating at the converter opening, and ensures stable heating and smelting of recycled lead smelting materials in the converter.

[0017] By using the converter's own rotation as a power source, the clamping mechanism drives the gear ring and gear set to operate. The difference in the number of teeth between the large and small gears is used to achieve staged acceleration, converting the converter's low-speed rotation into the high-speed rotation required by the fan blades. This, in turn, synchronously drives the cooling fan blades and the rotating barrel that sprays fire. The entire power transmission process is completed entirely by gear meshing and mechanical connection, eliminating the need for additional motors and complex electrical circuits. This avoids damage to motors and complex electrical circuits caused by high temperatures near the converter. At the same time, this device has a small number of parts, a compact structure, and uses all physical mechanical connections, resulting in a low failure rate in high-temperature environments.

[0018] By adjusting the bolt pins on the adjusting sleeve of the clamping mechanism, it can be adapted to converter mouths of different diameters. After clamping, it rotates synchronously with the converter, and the connection is firm and not easy to loosen, avoiding fire leakage and heat loss. It solves the defects of traditional bolt fixing method, which is time-consuming to install and easy to loosen during operation. A cooling water jacket is set between the outer shell and the inner liner. The water that has absorbed heat is discharged to the outside through the water outlet pipe. At the same time, a heat dissipation box is installed at the bottom to assist in heat dissipation. A perforated heat insulation ring is set between the device and the furnace mouth. While ensuring the smooth passage of flame, it effectively blocks the conduction of heat to the device side, further reducing the heat load of the device. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall appearance and structure of the heating device for a converter used in recycled lead smelting; Figure 2 Cross-sectional view of the internal mixing and combustion components, flame-spraying fixture components, and transmission components of the heating device for a converter used in recycled lead smelting; Figure 3 A diagram showing the distribution of the heating and cooling systems for a converter used in recycled lead smelting. Figure 4 A schematic diagram of the gas mixing section of the internal mixing and combustion components of the heating device for a converter used in recycled lead smelting; Figure 5 A schematic diagram of the combustion chamber section of the mixing and combustion components inside the heating device of a converter for recycled lead smelting; Figure 6 An enlarged schematic diagram of the gas mixing section of the internal mixing and combustion components of the heating device for a converter used in recycled lead smelting; Figure 7 A schematic diagram of the discharge and spraying section of the internal spraying fixture assembly of the heating device for a converter used in recycled lead smelting. Figure 8 A schematic diagram of the clamping part of the internal flame-spraying clamp assembly of the heating device for a converter used in recycled lead smelting. Figure 9 An enlarged schematic diagram of the clamping part of the internal flame-spraying clamp assembly of the heating device for a converter used in recycled lead smelting; Figure 10 A schematic diagram of the transmission assembly structure of the heating device for a converter used in recycled lead smelting; Figure 11 A schematic diagram showing the linkage between the heating device transmission assembly and the first turbofan in a converter for recycled lead smelting.

[0020] Figure label: 1. Heating equipment; 10. Outer shell; 11. Water inlet pipe; 12. Water outlet pipe; 13. Natural gas pipe; 14. Inner liner; 15. Radiator housing; 16. Radiator opening; 2. Mixing and combustion assembly; 20. Mixing chamber; 21. Ventilation plate; 22. First air inlet pipe; 23. Jet ring; 24. Isolation plate; 25. Conical vent; 26. Turbofan housing; 260. First turbofan; 27. Protective plate; 28. Igniter; 29. ​​Second air inlet pipe; 290. Jet rod; 3. Flame-spraying clamp assembly; 30. Rotating barrel 31. Second turbofan; 32. First gear ring; 33. Second gear ring; 34. Elastic telescopic rod; 340. Gear adjustment sleeve; 341. Clamping plate; 35. Perforated heat insulation ring; 4. Transmission assembly; 40. First gear; 41. First rotating shaft; 42. Second gear; 43. Fan; 44. Third gear; 45. Second rotating shaft; 450. First helical gear; 451. Second helical gear; 452. Third rotating shaft; 453. Third helical gear; 454. Fourth helical gear; 46. Fourth gear. Detailed Implementation

[0021] To further illustrate the technical means and effects adopted by the present invention in order to achieve the intended purpose, the following detailed description is provided in conjunction with the accompanying drawings and preferred embodiments, based on the specific implementation methods, structures, features and effects of the present invention.

[0022] like Figures 1 to 11 As shown, an embodiment of the present invention provides a heating device for a converter for recycled lead smelting, including a heating device 1. The heating device 1 also includes a shell 10. A water inlet pipe 11 is installed at the rear end of the top of the shell 10, a water outlet pipe 12 is installed at the front end of the top of the shell 10, a natural gas pipe 13 is installed at one end of the shell 10, an inner liner 14 is installed on the inner wall of the shell 10, a heat dissipation box 15 is installed at the bottom of the shell 10, and a heat dissipation port 16 is opened on one side of the heat dissipation box 15. A mixing combustion assembly 2 is installed on the inner wall of the inner liner 14. A flame-spraying clamp assembly 3 is installed on the inner wall of the inner liner 14. A transmission assembly 4 is installed at the bottom of the inner liner 14. A cooling jacket is provided between the inner liner 14 and the front and rear ends of the shell 10, and is connected to the opposite end away from the water inlet pipe 11 and the water outlet pipe 12. The bottom of the water inlet pipe 11 is connected to the cooling jacket, and the bottom of the water outlet pipe 12 is also connected to the cooling jacket. The cooling jacket is filled with cooling water.

[0023] Specifically, the outer shell 10 and the inner liner 14 adopt a double-layer fitting structure. The cooling jacket between the two is connected at one end to form a closed loop. Cooling water is injected into the cooling jacket through the water inlet pipe 11 to absorb the heat conducted by the inner liner 14 during operation. The inner liner 14 is divided into four functional areas: the turbine chamber in front of the mixer, the mixing chamber, the combustion chamber, and the flame emission rotating barrel 30. The mixing and combustion assembly 2 is responsible for mixing the gas and air and igniting the combustion. The flame jet clamp assembly 3 is responsible for the uniform emission of the flame and the clamping and fixing of the device to the converter mouth. The transmission assembly 4 is responsible for transmitting the rotational power of the converter to the moving parts of the mixing and combustion assembly 2 and the flame jet clamp assembly 3. The three work together to complete the heating of the converter.

[0024] like Figures 4 to 6 The shown mixing and combustion assembly 2 includes a mixing chamber 20, which is installed on one side of the inner wall of the inner liner 14. A ventilation plate 21 is installed at one end of the mixing chamber 20, and a first air intake pipe 22 is installed at the top of the mixing chamber 20. The first air intake pipe 22 is connected to the combustion-supporting gas and leads to the mixing chamber 20. The first air intake pipe 22 is also installed on one side of the outer wall of the inner liner 14. A jet ring 23 is installed at the bottom of the first air intake pipe 22. An isolation plate 24 is installed at the other end of the mixing chamber 20. A conical vent 25 is installed on one side of the isolation plate 24, and a turbo fan box is installed on one side of the isolation plate 24. The inner liner 14 has a turbine housing 26, with one end of the natural gas pipe 13 installed on one side of the isolation plate 24. A first turbine fan 260 is installed on the inner wall of the turbine housing 26. A protective plate 27 is installed on one end of the turbine housing 26 and is installed on the inner wall of one end of the inner liner 14. The protective plate 27 is also fitted onto the outer surface of the natural gas pipe 13. An igniter 28 is installed on the top outer wall of the inner liner 14 and penetrates through the inner liner 14. A second air intake pipe 29 is installed on the top outer wall of the inner liner 14. The second air intake pipe 29 is connected to oxygen and leads to the middle of the inner liner 14. A jet rod 290 is installed at the bottom of the second air intake pipe 29.

[0025] Specifically, the mixing chamber 20 adopts a cylindrical heat-resistant steel cylinder structure, the ventilation plate 21 at one end of the mixing chamber 20 adopts a perforated plate structure, the jet ring 23 is a circular tube with no less than 8 nozzles evenly arranged along the circumference, so that the ejected combustion-supporting gas is fully mixed with natural gas in all directions, the conical ventilation port 25 is set with the small end facing the mixing chamber 20 and the large end facing the turbofan box 26 to enhance the suction effect, the protective plate 27 is made of refractory castable or high-temperature resistant ceramic fiber, the igniter 28 adopts a high-voltage pulse igniter or resistance wire igniter, and the ignition end extends into the center of the combustion chamber, the jet rod 290 is a multi-segment straight pipe structure with multiple nozzles evenly arranged, the nozzles spray oxygen vertically towards the direction of the mixed airflow, so that oxygen and mixed gas are quickly mixed.

[0026] like Figures 7 to 9As shown, the flame-throwing clamp assembly 3 includes a rotating barrel 30. The outer wall of the rotating barrel 30 is rotatably supported on the inner wall of the inner liner 14 by multiple sets of bearings. Multiple sets of second turbine fans 31 are installed on the inner wall of the rotating barrel 30. The outer ends of the guide vanes of the multiple sets of second turbine fans 31 are installed on the inner wall of the rotating barrel 30. A first toothed ring 32 is installed at one end of the rotating barrel 30. A second toothed ring 33 is installed on the outer surface of one end of the outer shell 10 by bearings. An elastic telescopic rod 34 is installed on the top of the second toothed ring 33. A gear adjustment sleeve 340 is sleeved on the outer surface of the elastic telescopic rod 34. Multiple sets of holes are vertically opened at the front end of the gear adjustment sleeve 340, and bolts and pins are installed in the holes. A clamping plate 341 is installed on the top of the elastic telescopic rod 34. A perforated heat insulation ring 35 is installed at one end of the outer shell 10. One end of ring 35 is attached to the converter mouth; the rotating barrel 30 is made of heat-resistant steel plate rolled and welded, and the inner wall is lined or sprayed with a high-temperature refractory coating. No less than four sets of high-temperature bearings are set between the rotating barrel 30 and the inner liner 14. The outer ring of the bearing is embedded in the bearing seat on the inner wall of the inner liner 14, and the bearing seat is welded and fixed to the inner liner 14. The blades of the second turbofan 31 are made of heat-resistant steel and then welded to the inner wall of the rotating barrel 30. The first toothed ring 32 and the second toothed ring 33 are both treated with high frequency quenching to improve wear resistance. There are no less than two sets of elastic telescopic rods 34, which are symmetrically arranged circumferentially along the end face of the second toothed ring 33. The perforated heat insulation ring 35 is made of ceramic fiber or asbestos rubber sheet and has multiple through holes evenly opened along the circumference to ensure the flame passage area and effectively block heat conduction.

[0027] like Figure 10 , Figure 11 As shown, the transmission assembly 4 includes a first gear 40, the top of which meshes with the bottom of a second gear ring 33. A first rotating shaft 41 is nested at the center of the first gear 40. The first rotating shaft 41 is mounted on the bottom of the inner liner 14 via two sets of bearings. A second gear 42 is sleeved in the middle of the first rotating shaft 41. A fan 43 is mounted on one end of the first rotating shaft 41. A third gear 44 is meshed with the top of the second gear 42. A second rotating shaft 45 is nested at the center of the third gear 44. The second rotating shaft 45 is mounted on the bottom of the inner liner 14 via two sets of bearings. A first helical gear 450 is sleeved on one end of the second rotating shaft 45. A second helical gear 451 is meshed with one side of the first turbofan 260. A third rotating shaft 452 is nested at the center of the second helical gear 451. The third rotating shaft 452 is installed on one side of the isolation plate 24 via two sets of bearings and the base. The third rotating shaft 452 is inserted into a hole at the bottom of the turbofan housing 26. A third helical gear 453 is sleeved on the other end of the third rotating shaft 452. A fourth helical gear 454 is meshed with one side of the third helical gear 453. The fourth helical gear 454 is installed on the shaft of the first turbofan 260. A fourth gear 46 is sleeved on the other end of the second rotating shaft 450. The top of the fourth gear 46 is meshed with the bottom of the first gear ring 32 through a hole at the bottom of the inner liner 14.

[0028] Specifically, the bearing seats of the first rotating shaft 41, the second rotating shaft 45, and the third rotating shaft 452 are fixed to the mounting plate at the bottom of the inner liner 14 or on one side of the isolation plate 24 by bolts. The mounting plate is welded and fixed to the inner liner 14 or the isolation plate 24. The fan 43 is set to axial flow type. The fan 43 rotates synchronously with the first rotating shaft 41. The airflow generated flows along the outer wall of the inner liner 14, carrying away the heat of the transmission component 4 and the outer wall of the combustion chamber. The fourth gear 46 passes through the through hole opened at the bottom of the inner liner 14 and meshes with the first gear ring 32. A high-temperature resistant sealing ring material is installed at the through hole to prevent flames and high-temperature gases from leaking out from the through hole.

[0029] The working principle of the technical solution provided by this invention is as follows: First, align the heating device 1 with the converter opening. Simply insert and remove the bolt pin at the front end of the gear adjustment sleeve 340 once to adjust the opening of the clamping plate 341 on the elastic telescopic rod 34. This is suitable for different types of furnace openings. The heating device 1 is driven to rotate by an external vertical rotating mechanism. At the same time, another external axial rotating mechanism adjusts the angle to align with the docking groove. Finally, push the heating device 1 so that the clamping plate 341 passes through the inclined plane and is pushed into the docking groove, clamping it on the outer wall of the converter opening. The distance between the two sets of clamping plates 341 is slightly smaller than the furnace opening of the converter.

[0030] The top and bottom of the converter opening are provided with mating grooves that match the clamping plate 341 for clamping. The converter opening will only need to be adjusted when a different model of converter is replaced. The bolt pin at the front end of the gear adjusting sleeve 340 is adjusted by pushing the clamping plate 341 and the power of the external rotating mechanism at the rear of the heating equipment 1 through the inclined surface of the clamping plate 341 to clamp into the mating groove, thus completing the docking of the heating equipment 1 and the converter. The perforated heat insulation ring 35 is placed between the end face of the device and the converter opening to prevent the high temperature of the converter surface from being conducted to the outer shell 10 of the heating equipment 1. The converter starts to work and rotates. The natural gas pipe 13 installed on one side of the isolation plate 24 starts to transport natural gas through the protective plate 27.

[0031] When the converter starts to rotate, the two sets of clamping plates 341 are clamped on the outer wall of the converter opening. The clamping plates 341 move in a circular motion in sync with the rotation of the converter. The clamping plates 341 drive the two sets of elastic telescopic rods 34 connected at the bottom to move in a circular motion around the device. The bottom of the elastic telescopic rods 34 is fixed to the outer surface of the second toothed ring 33. The second toothed ring 33 is installed on the outer surface of one end of the outer shell 10 through a bearing. The elastic telescopic rods 34 drive the second toothed ring 33 to rotate around the outer shell 10, and the flame-spraying clamp assembly 3 enters the linkage state.

[0032] At this time, the transmission component 4 enters the working state, the second gear ring 33 rotates, the second gear ring 33 drives the smaller first gear 40 at the bottom to rotate faster, the first gear 40 drives the first rotating shaft 41 to rotate synchronously, when the first rotating shaft 41 rotates, the fan 43 installed at one end of the first rotating shaft 41 rotates synchronously, the fan 43 rotates to generate airflow, and ventilate and dissipate heat inside the device.

[0033] Simultaneously, the second gear 42, which is sleeved in the middle of the first rotating shaft 41, rotates synchronously with the first rotating shaft 41. The second gear 42 drives the third gear 44 to rotate. Since the larger second gear 42 meshes with the smaller third gear 44, the smaller third gear 44 is accelerated due to the difference in the number of teeth, providing the power for the rapid rotation of the rear first turbofan 260 and the first gear ring 32. At this time, the third gear 44 drives the second rotating shaft 45 to rotate synchronously at high speed. When the second rotating shaft 45 rotates, the first helical gear 450, which is sleeved at one end of the second rotating shaft 45, rotates synchronously. The first helical gear 450 drives the second helical gear 451 to rotate, and the second helical gear 451 drives the third rotating shaft 452 to rotate synchronously. The third rotating shaft 452 is inserted into the hole opened at the bottom of the turbofan housing 26.

[0034] When the third rotating shaft 452 rotates, the third helical gear 453 sleeved at the other end of the third rotating shaft 452 rotates synchronously. The third helical gear 453 drives the fourth helical gear 454 to rotate. The fourth helical gear 454 is installed on the shaft of the first turbofan 260. The fourth helical gear 454 drives the shaft of the first turbofan 260 to rotate. The first turbofan 260 rotates at high speed in the turbofan housing 26. The rotation of the first turbofan 260 generates a suction force in the turbofan housing 26, and then the sucked-in external air is continuously sucked into the mixing chamber 20 of the mixing combustion assembly 2 through the conical vent 25 installed on the isolation plate 24.

[0035] The combustion-supporting gas introduced into the first intake pipe 22 is evenly injected into the mixing chamber 20 through the bottom jet ring 23. The natural gas and the combustion-supporting gas are fully mixed in the mixing chamber 20, and the mixed gas flows to the ventilation plate 21 through the air blown in by the first turbo fan 260.

[0036] At this time, after the mixed gas is ejected from the ventilation plate 21, it enters the ignition and combustion stage. The oxygen introduced into the second air intake pipe 29 is injected into the mixed gas flow through the bottom jet rod 290. The oxygen and the mixed gas are further mixed. The igniter 28 penetrates the inner liner 14 and extends into one end of the combustion area. The igniter 28 generates an electric spark to ignite the mixed gas and oxygen. The mixed gas continues to burn in the chamber on the other side of the isolation plate 24. The high-temperature flame generated by the combustion is ejected forward into the rotating barrel 30.

[0037] Synchronously, the fourth gear 46, which is sleeved at the other end of the second rotating shaft 45, rotates synchronously. The fourth gear 46 drives the first gear ring 32 to rotate. The first gear ring 32 is installed at one end of the rotating barrel 30. The first gear ring 32 drives the rotating barrel 30 to rotate synchronously. Multiple sets of second turbine fans 31 installed on the inner wall of the rotating barrel 30 rotate synchronously with the rotating barrel 30. When the second turbine fan 31 rotates, it draws in the flame airflow, so that the flame is evenly distributed and concentratedly sprayed towards the front end.

[0038] During the operation of the device, the front and rear ends of the outer shell 10 and the inner liner 14 are reserved with a gap and are connected at one end. The cooling water source connected to the inlet pipe 11 is sent into the gap between the outer shell 10 and the inner liner 14 and flows. The cooling water absorbs the heat conducted by the inner liner 14 and finally flows to the outlet pipe 12 and is discharged from the outlet pipe 12.

[0039] Meanwhile, the heat dissipation vent 16 on one side of the heat dissipation box 15 helps to dissipate heat to the external environment, so as to achieve continuous heat dissipation and cooling of the device and prevent the outer casing 10 from getting too hot.

[0040] Finally, the high-temperature flame is continuously sprayed into the converter through the front end of the rotating barrel 30, heating and melting the recycled lead smelting material inside the converter to complete the heating of the entire converter. After heating, the external rotating mechanism at the rear of the heating equipment 1 is restarted to retract, leave the converter opening, and deflect to the rear. After the converter is unloaded, the external vertical rotating mechanism rotates again during the next heating, while the other external axial rotating mechanism adjusts the angle to align with the docking slot. The clamping plate 341 of the heating equipment 1 is inserted into the docking slot to dock with the converter opening, and the converter can then start the next heating operation.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A heating device for a converter used in recycled lead smelting, characterized in that, The device includes a heating device (1), which also includes a housing (10). A water inlet pipe (11) is installed at the rear end of the top of the housing (10), a water outlet pipe (12) is installed at the front end of the top of the housing (10), a natural gas pipe (13) is installed at one end of the housing (10), an inner liner (14) is installed on the inner wall of the housing (10), and a heat dissipation box (15) is installed at the bottom of the housing (10). A heat dissipation vent (16) is opened on one side of the heat dissipation box (15). The inner wall of the inner liner (14) is equipped with a mixing combustion assembly (2); the inner wall of the inner liner (14) is equipped with a flame-throwing clamp assembly (3); and the bottom of the inner liner (14) is equipped with a transmission assembly (4). The hybrid combustion assembly (2) includes a mixing chamber (20), which is installed on one side of the inner wall of the inner liner (14). A ventilation plate (21) is installed at one end of the mixing chamber (20). A first air inlet pipe (22) is installed at the top of the mixing chamber (20). The first air inlet pipe (22) is connected to the combustion-supporting gas and leads to the mixing chamber (20). The first air inlet pipe (22) is also installed on one side of the outer wall of the inner liner (14). A jet ring (23) is installed at the bottom of the first air inlet pipe (22). An isolation plate (24) is installed at the other end of the mixing chamber (20). A conical vent (25) is installed on one side of the isolation plate (24). A turbo fan housing (26) is installed on one side of the isolation plate (24). At the same time, one end of the natural gas pipe (13) is installed on one side of the isolation plate (24). The flame-throwing clamp assembly (3) includes a rotating barrel (30), the outer wall of which is rotatably supported on the inner wall of the inner liner (14) by multiple sets of bearings, multiple sets of second turbine fans (31) are installed on the inner wall of the rotating barrel (30), the outer ends of the guide vanes of the multiple sets of second turbine fans (31) are installed on the inner wall of the rotating barrel (30), and a first toothed ring (32) is installed at one end of the rotating barrel (30).

2. The heating device for the converter used in recycled lead smelting according to claim 1, characterized in that, The inner liner (14) and the outer shell (10) are provided with cooling jackets at the front and rear ends, and are connected to the opposite end of the water inlet pipe (11) and the water outlet pipe (12). The bottom of the water inlet pipe (11) is connected to the cooling jacket, and the bottom of the water outlet pipe (12) is connected to the cooling jacket. The cooling jacket is filled with cooling water.

3. The heating device for the converter in recycled lead smelting according to claim 2, characterized in that, The inner wall of the turbofan housing (26) is equipped with a first turbofan (260), and a protective plate (27) is installed at one end of the turbofan housing (26). The protective plate (27) is installed on the inner wall of one end of the inner liner (14), and the protective plate (27) is sleeved on the outer surface of the natural gas pipe (13). An igniter (28) is installed on the top outer wall of the inner liner (14).

4. The heating device for the converter in recycled lead smelting according to claim 3, characterized in that, The igniter (28) penetrates the inner liner (14). A second air inlet pipe (29) is installed on the top outer wall of the inner liner (14). The second air inlet pipe (29) is connected to oxygen and leads to the middle of the inner liner (14). A jet rod (290) is installed at the bottom of the second air inlet pipe (29).

5. The heating device for the converter in recycled lead smelting according to claim 4, characterized in that, A second toothed ring (33) is mounted on the outer surface of one end of the outer shell (10) via a bearing. An elastic telescopic rod (34) is mounted on the top of the second toothed ring (33). A gear adjustment sleeve (340) is sleeved on the outer surface of the elastic telescopic rod (34). Multiple sets of holes are vertically opened at the front end of the gear adjustment sleeve (340), and bolt pins are installed in the holes.

6. The heating device for the converter in recycled lead smelting according to claim 5, characterized in that, The elastic telescopic rod (34) is fitted with a clamp plate (341) at the top, and a perforated heat insulation ring (35) is installed at one end of the outer shell (10), with one end of the perforated heat insulation ring (35) fitting against the converter mouth.

7. The heating device for the converter in recycled lead smelting according to claim 6, characterized in that, The transmission assembly (4) includes a first gear (40), the top of the first gear (40) is meshed with the bottom of the second gear ring (33), a first rotating shaft (41) is nested at the center of the first gear (40), the first rotating shaft (41) is installed at the bottom of the inner liner (14) via two sets of bearings and the base, a second gear (42) is sleeved in the middle of the first rotating shaft (41), and a fan (43) is installed at one end of the first rotating shaft (41).

8. The heating device for the converter in recycled lead smelting according to claim 7, characterized in that, The top of the second gear (42) is meshed with a third gear (44), and a second rotating shaft (45) is nested at the center of the third gear (44). The second rotating shaft (45) is installed at the bottom of the inner liner (14) via two sets of bearings and a base.

9. The heating device for the converter in recycled lead smelting according to claim 8, characterized in that, The second rotating shaft (45) is fitted with a first helical gear (450) at one end, and a second helical gear (451) is meshed with one side of the first helical gear (450). A third rotating shaft (452) is nested at the center of the second helical gear (451). The third rotating shaft (452) is installed on one side of the isolation plate (24) through two sets of bearings and the base. The third rotating shaft (452) is inserted into the hole opened at the bottom of the turbofan housing (26).

10. The heating device for the converter in recycled lead smelting according to claim 9, characterized in that, The third rotating shaft (452) is fitted with a third helical gear (453) at the other end. A fourth helical gear (454) is meshed with one side of the third helical gear (453). The fourth helical gear (454) is mounted on the shaft of the first turbofan (260). The second rotating shaft (45) is fitted with a fourth gear (46) at the other end. The top of the fourth gear (46) is meshed with the bottom of the first gear ring (32) through a hole opened at the bottom of the inner liner (14).

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