Lead recovery smelting furnace for waste lead-acid storage battery

Abstract

The utility model discloses a waste lead-acid storage battery lead recovery smelting furnace, and particularly relates to the technical field of secondary lead recovery, the waste lead-acid storage battery lead recovery smelting furnace comprises a smelting furnace, a smoke exhaust pipe is fixedly installed on the top of the smelting furnace, a feeding device is fixedly installed on the upper portion of the side wall of the smelting furnace, and a heat exchange assembly is fixedly installed outside the feeding device. The end, away from the smelting furnace, of the smoke exhaust pipe is fixedly connected with the heat exchange assembly. According to the lead recovery smelting furnace for the waste lead-acid storage battery, the heat exchange feeding device and the heat exchange assembly are matched with each other, smelting materials in the feeding barrel can be preheated, meanwhile, in the heat exchange process, spiral plates of the heat exchange assembly rotate to scrape away dust accumulated on the inner wall of the heat exchange barrel, and therefore the heat exchange efficiency is improved. And then the smoke is conveyed into the collecting pipe and finally collected into the collecting box, and the situation that the smoke is accumulated in the heat exchange cylinder for a long time, so that the heat exchange function of the heat exchange cylinder is affected, and the smelting material cannot be preheated is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of secondary lead recovery, in particular to a lead recovery smelting furnace for waste lead-acid batteries. Background Art

[0002] Recycling the lead in waste lead-acid batteries is beneficial to environmental protection. In the existing technology, most of the lead is recycled using a side-blown smelting furnace. Compared with other smelting furnaces, the side-blown smelting furnace has the advantages of strong adaptability, high continuous operation rate, long furnace life, and simple process.

[0003] During the use of the side-blown smelting furnace, most of the high-temperature flue gas generated is sent to the waste heat boiler for waste heat recovery after dust removal. For the materials to be smelted that are about to enter the smelting furnace, the conventional technology does not have a preheating structure, resulting in a long time for the materials to be smelted to heat up after entering the smelting furnace, which prolongs the time required for smelting.

[0004] Chinese patent publication number: CN220771917U, discloses a lead recovery smelting furnace for waste lead-acid batteries, including: a furnace body, with a smoke exhaust channel connected to the top; a feed channel, arranged on the side wall of the furnace body; a heat exchange component, including a heat insulation box coated on the outer wall of the feed channel, and a heat exchange component arranged in the heat insulation box, the smoke outlet end of the smoke exhaust channel is connected to the smoke inlet end of the heat exchange component, and the smoke exhaust channel heats the feed channel through the heat exchange component; an air supply component, arranged on the side wall of the furnace body, for supplying enriched oxygen into the furnace body. The utility model can realize the preheating of the material to be smelted by high-temperature flue gas, and after the preheated material to be smelted is sent to the smelting furnace, the material to be smelted can be raised to the smelting temperature in a relatively short time, shortening the time required for smelting.

[0005] However, the device still has some disadvantages during use: the high-temperature flue gas generated by furnace smelting is dispersed into the heat exchange branch pipe through the exhaust pipe, and the material to be smelted in the feed pipe is preheated and heated through the heat transfer tube and the plate. However, the high-temperature flue gas contains particulate impurities. After passing through the heat exchange branch pipe for a long time, the particulate dust will accumulate on the inner surface of the heat exchange branch pipe, which can easily cause the heat exchange branch pipe to be blocked, thereby affecting the transportation of the flue gas and failing to achieve the purpose of preheating the smelting material. Utility Model Content

[0006] The main purpose of the utility model is to provide a lead recovery smelting furnace for waste lead-acid batteries, which can effectively solve the problems in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A lead recovery smelting furnace for scrap lead-acid batteries comprises a smelting furnace, a smoke exhaust pipe is fixedly installed on the top of the smelting furnace, a feeding device is fixedly installed on the upper part of the side wall of the smelting furnace, a heat exchange component is fixedly installed on the outside of the feeding device, one end of the smoke exhaust pipe away from the smelting furnace is fixedly connected to the heat exchange component, a linkage component is fixedly installed on the heat exchange component and the feeding device, a smoke outlet pipe is fixedly installed on the outside of the heat exchange component, a bag dust collector is fixedly installed on the end of the smoke outlet pipe away from the heat exchange component, an air outlet end of the bag dust collector is connected to a waste heat boiler, an air inlet pipe is fixedly installed on the bottom of the smelting furnace, and a liquid discharge pipe and a slag discharge pipe are fixedly installed on the lower part of the side wall of the smelting furnace.

[0009] Preferably, the feeding device includes a feeding barrel, the left end of the feeding barrel is fixedly connected to the upper part of the side wall of the smelting furnace, the feeding barrel is communicated with the smelting furnace, a rotating shaft rod is rotatably connected inside the feeding barrel, a auger plate is fixedly installed on the outer surface of the rotating shaft rod, a driving rod is fixedly installed on the right end of the rotating shaft rod, the driving rod extends through and extends to the right end of the feeding barrel, a motor is fixedly installed on the right end of the feeding barrel, the output end of the motor is fixedly connected to the driving rod, and a feeding pipe is fixedly installed on the upper right part of the outer surface of the feeding barrel.

[0010] Preferably, the linkage assembly includes a first pulley, a first mounting plate and a second mounting plate, the first mounting plate is fixedly mounted on the outer surface of the heat exchange cylinder, the second mounting plate is fixedly mounted on the outer surface of the feeding cylinder, a rotating rod is rotatably connected between the first mounting plate and the second mounting plate, one end of the rotating rod passes through the second mounting plate and is fixedly mounted with a second pulley, the first pulley is fixedly mounted on the outer surface of the driving rod, and a belt is wrapped around the outer surfaces of the first pulley and the second pulley.

[0011] Preferably, the heat exchange assembly includes a heat exchange cylinder and a gear, the heat exchange cylinder sleeve is fixedly installed in the middle of the outer surface of the feeding cylinder, the smoke exhaust pipe is fixedly connected to the left side of the outer surface of the heat exchange cylinder, the smoke outlet pipe is fixedly connected to the right side of the outer surface of the heat exchange cylinder, the right end of the heat exchange cylinder is open, an annular plate is rotatably connected to the right side of the inner wall of the heat exchange cylinder, the annular plate is rotatably connected to the outer wall of the feeding cylinder, a spiral plate is fixedly installed on the left end of the annular plate, the inner surface of the spiral plate is tangent to the outer surface of the feeding cylinder, and the outer surface of the spiral plate is tangent to the inner wall of the heat exchange cylinder, the gear is fixedly installed on the outer surface of the rotating rod, the gear is meshed with the outer gear ring, a collecting pipe is fixedly installed on the right side of the bottom wall of the heat exchange cylinder, and a collecting box is connected to the bottom of the collecting pipe.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model discloses a lead recovery smelting furnace for waste lead-acid batteries. A heat exchange feeding device and a heat exchange component are arranged to cooperate with each other, and the smelting material in the feeding barrel can be preheated. Meanwhile, in the process of heat exchange, the spiral plate of the heat exchange component rotates to scrape the dust accumulated on the inner wall of the heat exchange barrel, and then transports it to a collecting pipe, and finally collects it in a collecting box, so as to avoid the dust from accumulating in the heat exchange barrel for a long time, thereby affecting the heat exchange function of the heat exchange barrel, and then failing to achieve the purpose of preheating the smelting material. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a cross-sectional view of the feeding device and the heat exchange component of the utility model;

[0016] Figure 3 It is a connection diagram of the feeding device and the heat exchange component of the utility model.

[0017] In the figure: 1, smelting furnace; 2, smoke exhaust pipe; 3, feeding device; 4, heat exchange component; 5, smoke exhaust pipe; 6, bag filter; 7, waste heat boiler; 8, linkage component; 9, drain pipe; 10, slag discharge pipe; 11, air intake pipe; 31, feeding barrel; 32, rotating shaft rod; 33, auger plate; 34, motor; 35, feeding pipe; 36, driving rod; 41, heat exchange barrel; 42, spiral plate; 43, annular plate; 44, outer gear ring; 45, gear; 46, collecting pipe; 47, collecting box; 81, first mounting plate; 82, rotating rod; 83, second mounting plate; 84, second pulley; 85, first pulley; 86, belt. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1-3 As shown, a lead recovery smelting furnace for waste lead-acid batteries comprises a smelting furnace 1, a smoke exhaust pipe 2 is fixedly installed on the top of the smelting furnace 1, a feeding device 3 is fixedly installed on the upper part of the side wall of the smelting furnace 1, a heat exchange component 4 is fixedly installed on the outside of the feeding device 3, the smoke exhaust pipe 2 is fixedly connected to the heat exchange component 4 at one end away from the smelting furnace 1, a linkage component 8 is fixedly installed on the heat exchange component 4 and the feeding device 3, a smoke outlet pipe 5 is fixedly installed on the outside of the heat exchange component 4, a bag filter 6 is fixedly installed at one end of the smoke outlet pipe 5 away from the heat exchange component 4, and a waste heat boiler 7 is connected to the gas outlet end of the bag filter 6, an air inlet pipe 11 is fixedly installed on the bottom of the smelting furnace 1, and a liquid discharge pipe 9 and a slag discharge pipe 10 are fixedly installed on the lower part of the side wall of the smelting furnace 1.

[0020] The feeding device 3 includes a feeding barrel 31, the left end of the feeding barrel 31 is fixedly connected to the upper part of the side wall of the smelting furnace 1, the feeding barrel 31 is communicated with the smelting furnace 1, a rotating shaft rod 32 is rotatably connected inside the feeding barrel 31, a auger plate 33 is fixedly installed on the outer surface of the rotating shaft rod 32, a driving rod 36 is fixedly installed on the right end of the rotating shaft rod 32, the driving rod 36 extends through and extends to the right end of the feeding barrel 31, a motor 34 is fixedly installed on the right end of the feeding barrel 31, the output end of the motor 34 is fixedly connected to the driving rod 36, and a feeding pipe 35 is fixedly installed on the upper right part of the outer surface of the feeding barrel 31.

[0021] The linkage assembly 8 includes a first pulley 85, a first mounting plate 81 and a second mounting plate 83. The first mounting plate 81 is fixedly mounted on the outer surface of the heat exchange cylinder 41, and the second mounting plate 83 is fixedly mounted on the outer surface of the feeding cylinder 31. A rotating rod 82 is rotatably connected between the first mounting plate 81 and the second mounting plate 83. One end of the rotating rod 82 passes through the second mounting plate 83 and is fixedly mounted with a second pulley 84. The first pulley 85 is fixedly mounted on the outer surface of the driving rod 36, and a belt 86 is wrapped around the outer surfaces of the first pulley 85 and the second pulley 84.

[0022] The heat exchange assembly 4 includes a heat exchange tube 41 and a gear 45. The heat exchange tube 41 is sleeved and fixedly installed in the middle of the outer surface of the feeding tube 31. The smoke exhaust pipe 2 is fixedly connected to the left side of the outer surface of the heat exchange tube 41. The smoke outlet pipe 5 is fixedly connected to the right side of the outer surface of the heat exchange tube 41. The right end of the heat exchange tube 41 is open. An annular plate 43 is rotatably connected to the right side of the inner wall of the heat exchange tube 41. The annular plate 43 is rotatably connected to the outer wall of the feeding tube 31. A spiral plate 42 is fixedly installed on the left end of the annular plate 43. The inner surface of the spiral plate 42 is tangent to the outer surface of the feeding tube 31, and the outer surface of the spiral plate 42 is tangent to the inner wall of the heat exchange tube 41. The gear 45 is fixedly installed on the outer surface of the rotating rod 82. The gear 45 is meshed with the outer gear ring 44. A collecting tube 46 is fixedly installed on the right side of the bottom wall of the heat exchange tube 41, and a collecting box 47 is connected to the bottom of the collecting tube 46. The inner wall of the heat exchange tube 41 is scraped by the rotating spiral plate 42 to clean the smoke and dust adhering to the inner wall of the heat exchange tube 41, so as to avoid the smoke and dust from accumulating for a long time, thereby affecting the heat exchange function of the heat exchange tube 41 and failing to achieve the purpose of preheating the smelting material.

[0023] The working principle of the utility model is as follows: when the material to be processed is smelted, part of the material to be smelted is fed into the smelting furnace 1 at the beginning stage, and then combustion gas and enriched oxygen are fed into the smelting furnace 1, and the smelting furnace 1 is ignited and heated to start smelting. During the smelting process of the smelting furnace 1, the material to be smelted is put into the feeding tube 31 through the feeding pipe 35, and the high-temperature flue gas generated by the smelting in the smelting furnace 1 is transported to the heat exchange tube 41 through the exhaust pipe 2, and the motor 34 drives the driving rod 36 to rotate, and the driving rod 36 drives the rotating shaft rod 32 to rotate, and the rotating shaft rod 32 drives the auger plate 33 to rotate, thereby driving the smelting material in the feeding tube 31 to move toward the smelting furnace 1, and while the driving rod 36 rotates, it drives the first pulley 85 to rotate, and the first pulley 85 drives the second pulley 84 to rotate through the belt 86, thereby driving the rotating rod 82 to rotate The rotating rod 82 drives the gear 45 to rotate, the gear 45 drives the outer gear ring 44 to rotate, the outer gear ring 44 drives the annular plate 43 to rotate, the annular plate 43 drives the spiral plate 42 to rotate, and the spiral plate 42 drives the flue gas to move from left to right while rotating. During the movement, the heat emitted by the high-temperature flue gas is transferred to the feeding barrel 31, and the material to be smelted in the feeding barrel 31 is preheated and heated. At the same time, the spiral plate 42 rotates to scrape the dust accumulated on the inner wall of the heat exchange barrel 41, and then transports it to the collection pipe 46, and finally collects it in the collection box 47 to prevent dust from accumulating inside the heat exchange barrel 41 for a long time, thereby affecting the heat exchange function of the heat exchange barrel 41, and thus failing to achieve the purpose of preheating the smelting material. Subsequently, the flue gas is sent to the bag dust collector 6 through the smoke outlet pipe 5 for dust removal, and then sent to the waste heat boiler 7 to recover waste heat.

[0024] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A lead recovery smelting furnace for waste lead-acid batteries, comprising a smelting furnace (1), characterized in that: A smoke exhaust pipe (2) is fixedly mounted on the top of the smelting furnace (1), a feeding device (3) is fixedly mounted on the upper part of the side wall of the smelting furnace (1), a heat exchange component (4) is fixedly mounted on the outside of the feeding device (3), one end of the smoke exhaust pipe (2) away from the smelting furnace (1) is fixedly connected to the heat exchange component (4), a linkage component (8) is fixedly mounted on the heat exchange component (4) and the feeding device (3), a smoke outlet pipe (5) is fixedly mounted on the outside of the heat exchange component (4), a bag filter (6) is fixedly mounted on the end of the smoke outlet pipe (5) away from the heat exchange component (4), and the gas outlet end of the bag filter (6) is connected to a waste heat boiler (7), an air inlet pipe (11) is fixedly mounted on the bottom of the smelting furnace (1), and a liquid discharge pipe (9) and a slag discharge pipe (10) are fixedly mounted on the lower part of the side wall of the smelting furnace (1).

2. A lead recovery smelting furnace for waste lead-acid batteries according to claim 1, characterized in that: The feeding device (3) comprises a feeding barrel (31), the left end of the feeding barrel (31) is fixedly connected to the upper part of the side wall of the smelting furnace (1), the feeding barrel (31) is communicated with the smelting furnace (1), a rotating shaft rod (32) is rotatably connected inside the feeding barrel (31), a auger plate (33) is fixedly installed on the outer surface of the rotating shaft rod (32), a driving rod (36) is fixedly installed on the right end of the rotating shaft rod (32), the driving rod (36) extends through and extends to the right end of the feeding barrel (31), a motor (34) is fixedly installed on the right end of the feeding barrel (31), the output end of the motor (34) is fixedly connected to the driving rod (36), and a feeding pipe (35) is fixedly installed on the upper right part of the outer surface of the feeding barrel (31).

3. A lead recovery smelting furnace for waste lead-acid batteries according to claim 2, characterized in that: The linkage assembly (8) comprises a first pulley (85), a first mounting plate (81) and a second mounting plate (83), wherein the first mounting plate (81) is fixedly mounted on the outer surface of the heat exchange cylinder (41), and the second mounting plate (83) is fixedly mounted on the outer surface of the feeding cylinder (31). A rotating rod (82) is rotatably connected between the first mounting plate (81) and the second mounting plate (83), and one end of the rotating rod (82) passes through the second mounting plate (83) and is fixedly mounted with a second pulley (84). The first pulley (85) is fixedly mounted on the outer surface of the driving rod (36), and a belt (86) is wound around the outer surfaces of the first pulley (85) and the second pulley (84).

4. A lead recovery smelting furnace for waste lead-acid batteries according to claim 3, characterized in that: The heat exchange assembly (4) comprises a heat exchange cylinder (41) and a gear (45); the heat exchange cylinder (41) is sleeved and fixedly installed on the middle part of the outer surface of the feeding cylinder (31); the smoke exhaust pipe (2) is fixedly connected to the left side of the outer surface of the heat exchange cylinder (41); the smoke outlet pipe (5) is fixedly connected to the right side of the outer surface of the heat exchange cylinder (41); the right end of the heat exchange cylinder (41) is open; the right side of the inner wall of the heat exchange cylinder (41) is rotatably connected to an annular plate (43); the annular plate (43) is rotatably connected to the outer wall of the feeding cylinder (31); The annular plate (43) is dynamically connected, a spiral plate (42) is fixedly mounted on the left end of the annular plate (43), the inner surface of the spiral plate (42) is tangent to the outer surface of the feeding cylinder (31), the outer surface of the spiral plate (42) is tangent to the inner wall of the heat exchange cylinder (41), the gear (45) is fixedly mounted on the outer surface of the rotating rod (82), the gear (45) is meshed with the outer gear ring (44), a collecting pipe (46) is fixedly mounted on the right side of the bottom wall of the heat exchange cylinder (41), and the bottom of the collecting pipe (46) is connected to a collecting box (47).

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