Regenerated lead alloy pot and detachable combustor thereof

Abstract

The regenerated lead alloy pot comprises a furnace body, a lead pot is arranged in a hearth in the middle of the furnace body, the furnace body is composed of a supporting layer arranged on the outer side and a heat preservation layer arranged on the inner side, and a heat storage cavity is formed by the distance between the inner wall of the heat preservation layer and the outer wall of the lead pot arranged in the hearth. A plurality of detachable combustors which are annularly distributed at the upper part of the heat storage cavity are detachably arranged on the supporting layer; the detachable combustor comprises a compressed air sleeve, a natural gas sleeve and an oxygen sleeve which are sequentially sleeved from inside to outside. The detachable combustors are annularly distributed on the heat storage cavity of the lead pan, and the outlets of the detachable combustors are tangentially arranged along the outer wall of the lead pan, so that the periphery of the lead pan is uniformly heated, the tail ends of the detachable combustors are prevented from being directly aligned to the outer wall of the lead pan for heating, and the service life of the lead pan is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of recycled lead alloy production technology, and in particular relates to a lead alloy pot and its detachable burner. Background Technology

[0002] In the recycled lead smelting industry, waste lead-acid batteries are crushed and sorted to obtain lead paste and other components. Lead paste is generally smelted in an oxygen-enriched side-blown furnace. After smelting, the crude lead needs to be refined to control the content of impurities. Currently used lead pots and burners use natural gas to directly burn in the air for heating, resulting in a large amount of heat being emitted with the combustion exhaust gas, leading to low gas heat utilization. At the same time, the burner only continuously heats a certain part of the lead pot, relying on the stirring of molten lead for heat transfer, resulting in uneven heating and a short lifespan for the lead pot. Furthermore, heating with only one burner results in long heating times, affecting production efficiency.

[0003] Therefore, it is necessary to propose a lead alloy pot and its burner to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a recycled lead alloy pot and its detachable burner. By arranging multiple detachable burners around the heat storage chamber of the lead pot, and with the outlets of the detachable burners tangentially arranged along the outer wall of the lead pot, the pot is heated evenly around its perimeter while avoiding direct contact between the tail ends of the detachable burners and the outer wall of the lead pot, thus extending the lifespan of the lead pot.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a recycled lead alloy pot, characterized in that: it includes a furnace body, a lead pot is placed in the furnace chamber in the middle of the furnace body, the furnace body is composed of a support layer placed on the outside and a heat insulation layer placed on the inside, the distance between the inner wall of the heat insulation layer and the outer wall of the lead pot placed in the furnace chamber forms a heat storage cavity, and multiple detachable burners arranged in a ring on the upper part of the heat storage cavity are detachably mounted on the support layer.

[0006] The detachable burner includes, from the inside out, a compressed air sleeve, a natural gas sleeve, and an oxygen sleeve. The inner cavity of the compressed air sleeve is a compressed air passage, the annular cavity between the outer wall of the compressed air sleeve and the inner wall of the natural gas sleeve is a natural gas passage, and the annular cavity between the outer wall of the natural gas sleeve and the inner wall of the oxygen sleeve is an oxygen passage. The detachable burner also includes gas source connectors for introducing gas sources into the compressed air passage, the natural gas passage, and the oxygen passage, respectively. The gas source connectors are mounted on the tailstock. The gas source connectors include a compressed air connection pipe, an oxygen connection pipe, and a natural gas connection pipe. The gas source connectors for the same gas source on each detachable burner are collected in a gas distribution assembly.

[0007] Each gas distribution assembly includes a gas chamber, which has an inlet connected to a gas source and multiple outlets. The number of outlets is the same as the number of detachable burners. The gas source is natural gas, oxygen, or compressed air. The inlet of each gas distribution assembly is connected to one gas source. Each outlet is connected to the corresponding gas source connector on each detachable burner via a metal hose. A flow regulating valve and a flame arrester are installed sequentially on the metal hose.

[0008] The tailstock includes a head pipe 1, a connecting pipe 2, and a connecting pipe 3, which are sealed and connected from front to back. The head end of the oxygen casing is detachably installed at the rear of the connecting pipe 3, and the connecting pipe 3 is connected to an oxygen connecting pipe. The head end of the natural gas casing, which passes through the connecting pipe 3, is detachably installed at the rear of the connecting pipe 2, and the connecting pipe 2 is connected to a natural gas connector pipe. The head end of the compressed air casing, which passes through the connecting pipe 3 and the connecting pipe 2 in sequence, is detachably installed at the rear of the head pipe 1. The front part of the head pipe 1 is inclinedly connected to the compressed air connecting pipe. A connecting ring cavity is formed between the inner wall of the connecting pipe 3 and the outer wall of the natural gas casing, and the oxygen connecting pipe communicates with the oxygen channel through the connecting ring cavity. A connecting ring cavity is formed between the inner wall of the connecting pipe 2 and the outer wall of the compressed air casing, and the natural gas connector pipe communicates with the natural gas channel through the connecting ring cavity.

[0009] The end cap tube 1 has a flange at the rear, and the connecting tubes 2 and 3 have flanges at both ends. The flange at the beginning of the connecting tube 2 is sealed to the flange of the end cap tube 1, and the flange at the end of the connecting tube 2 is sealed to the flange at the beginning of the connecting tube 3.

[0010] The length of the oxygen casing is less than the length of the natural gas casing, which is less than the length of the compressed air casing. The compressed air connecting pipe is an inclined pipe, while the oxygen connecting pipe and the natural gas connector pipe are both bent pipes.

[0011] The support layer consists of a steel frame and bricks filling the steel frame.

[0012] The outlets of each detachable burner are arranged tangentially along the outer wall of the lead pot.

[0013] The detachable burner is detachably mounted on the support layer via a bracket, which is located at the three ends of the connecting pipe.

[0014] A detachable burner includes, from the inside out, a compressed air jacket, a natural gas jacket, and an oxygen jacket, which are sequentially fitted together. The inner cavity of the compressed air jacket serves as a compressed air passage, the annular cavity between the outer wall of the compressed air jacket and the inner wall of the natural gas jacket serves as a natural gas passage, and the annular cavity between the outer wall of the natural gas jacket and the inner wall of the oxygen jacket serves as an oxygen passage. It also includes a tailstock, which comprises, from front to back, a head pipe 1, a connecting pipe 2, and a connecting pipe 3, which are sequentially sealed and joined together. The head end of the oxygen jacket is detachably mounted to the rear of the connecting pipe 3, and the connecting pipe 3 is externally connected to an oxygen connecting pipe. The natural gas casing head of connecting pipe three is detachably installed at the rear of connecting pipe two. Connecting pipe two is connected to a natural gas connector pipe. The compressed air casing head of connecting pipe two is detachably installed at the rear of end cap pipe one, passing through connecting pipe three in sequence. The front of end cap pipe one is inclinedly connected to a compressed air connector pipe. A connecting ring cavity is formed between the inner wall of connecting pipe three and the outer wall of the natural gas casing. The oxygen connector pipe is connected to the oxygen channel through the connecting ring cavity. A connecting ring cavity is formed between the inner wall of connecting pipe two and the outer wall of the compressed air casing. The natural gas connector pipe is connected to the natural gas channel through the connecting ring cavity.

[0015] The length of the oxygen casing is less than the length of the natural gas casing, which is less than the length of the compressed air casing. The compressed air connecting pipe is an inclined pipe, while the oxygen connecting pipe and the natural gas connector pipe are both bent pipes.

[0016] The detachable burner bracket is connected to the lead pot platform at an appropriate height via an adjustable nut. The detachable burner has a long, multi-layered sleeve structure, connected to the burner tailstock via different threads. The detachable burner tailstock is connected to oxygen, natural gas, and compressed air channels. The detachable burner is made of 310S steel. The detachable burner heats the lead pot at a specific angle. The burner tailstock is connected to the gas source via a flexible metal hose; the flexible metal hose includes a flow regulating valve and a flame arrester.

[0017] The compressed air casing, natural gas casing, and oxygen casing have the same thickness, and their diameters increase sequentially from the inside to the outside. They are connected to the burner tailstock via threads, and the outlet ends are flush after assembly.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. By surrounding natural gas with oxygen and compressed air during combustion, oxygen-enriched combustion is achieved, which can effectively increase the combustion temperature;

[0020] 2. By using oxygen-enriched combustion, exhaust emissions are reduced and thermal efficiency is improved;

[0021] 3. The modular structure facilitates quick and easy burner replacement;

[0022] 4. By designing a completely new burner structure and optimizing the burner layout, the goal of reducing energy consumption can be achieved. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the recycled lead smelting furnace of this utility model;

[0024] Figure 2 for Figure 1 Top view;

[0025] Figure 3 This is a schematic diagram of a detachable burner.

[0026] Figure 4 This is a schematic diagram of the outlet end structure of a detachable burner;

[0027] Figure 5 This is a schematic diagram of the gas distribution assembly. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] Reference Figure 1 , 2 A recycled lead alloy pot includes a lead pot 10, detachable burners A, B, C, and D, an insulation layer 11, a brick and steel structure platform 12, natural gas, oxygen, and compressed air hoses, a flame arrester 13, and a flow regulating valve 14. The detachable burners A, B, C, and D are mounted on brackets 20 at an appropriate height on the brick and steel structure platform 12 via adjustable nuts for heating the lead pot 10. The insulation layer 11 is fixed to the brick and steel structure platform 12 with anchor bolts for heat storage in the lead pot. The detachable burners A, B, C, and D are connected to the lead pot at specific angles; the detachable burners heat the lead pot at these specific angles. The detachable burners A, B, C, and D are connected to an external gas source via metal hoses. The pressure of each gas source is between 0.05 and 0.25 MPa to ensure normal operation of the burners.

[0030] Reference Figure 3 , 4 The detachable burner includes a compressed air sleeve 7, a natural gas sleeve 8, and an oxygen sleeve 9, which are sequentially installed from the inside out. The inner cavity of the compressed air sleeve 7 is a compressed air passage 3, the annular cavity between the outer wall of the compressed air sleeve 7 and the inner wall of the natural gas sleeve 8 is a natural gas passage 4, and the annular cavity between the outer wall of the natural gas sleeve 8 and the inner wall of the oxygen sleeve 9 is an oxygen passage 5.

[0031] The detachable burner also includes a tailstock, which consists of a head tube 1, a connecting tube 2, and a connecting tube 3 that are sealed together sequentially from front to back.

[0032] The oxygen sleeve 9 is detachably attached to the rear of connecting pipe three, which is connected to oxygen connecting pipe 2. The natural gas sleeve 8, passing through connecting pipe three, is detachably attached to the rear of connecting pipe two, which is connected to natural gas connector pipe 6. The compressed air sleeve 7, passing sequentially through connecting pipe three and connecting pipe two, is detachably attached to the rear of end cap pipe one. The front of end cap pipe one is inclined and connected to compressed air connecting pipe 1. A connecting ring cavity is formed between the inner wall of connecting pipe three and the outer wall of natural gas sleeve 8, through which oxygen connecting pipe 2 communicates with oxygen channel 5. Similarly, a connecting ring cavity is formed between the inner wall of connecting pipe two and the outer wall of compressed air sleeve 7, through which natural gas connector pipe 6 communicates with natural gas channel 4. The ends of the burner compressed air channel 3, natural gas channel 4, and oxygen channel 5 are flush to ensure stable burner operation.

[0033] Reference Figure 5 The recycled lead smelting furnace of this utility model is equipped with three gas distribution components. Natural gas / oxygen / compressed air sources are respectively connected to the air inlet 15 of the three gas distribution components. The four outlets 16, 17, 18, and 19 are connected to the flow regulating valve 14, the flame arrester 13, and the natural gas / oxygen / compressed air inlet of the four burners in sequence through metal hoses.

[0034] The embodiments described above are merely preferred embodiments of this invention and are not intended to limit the invention in any way. Furthermore, this patent is not limited to lead smelting chemicals; other variations and modifications are possible without departing from the technical solutions described in the claims. It should be noted that the specific embodiments described are only for explaining the invention and are not intended to limit it. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. A recycled lead alloy pot, characterized in that: The furnace includes a furnace body, a lead pot (10) in the furnace chamber in the middle of the furnace body, and the furnace body is composed of a support layer (12) placed on the outside and a heat insulation layer (11) placed on the inside. The distance between the inner wall of the heat insulation layer (11) and the outer wall of the lead pot (10) placed in the furnace chamber forms a heat storage chamber. Multiple detachable burners arranged in a ring on the upper part of the heat storage chamber can be detachably installed on the support layer (12). The detachable burner includes a compressed air sleeve (7), a natural gas sleeve (8), and an oxygen sleeve (9) sequentially fitted from the inside out. The inner cavity of the compressed air sleeve (7) is a compressed air passage (3), the annular cavity between the outer wall of the compressed air sleeve (7) and the inner wall of the natural gas sleeve (8) is a natural gas passage (4), and the annular cavity between the outer wall of the natural gas sleeve (8) and the inner wall of the oxygen sleeve (9) is an oxygen passage (5). The detachable burner also includes a gas source connector fitting for supplying gas sources to the compressed air passage (3), the natural gas passage (4), and the oxygen passage (5) respectively, and the gas source connector fitting is mounted on the tailstock; The gas source connector fittings include compressed air connection pipe (1), oxygen connection pipe (2), and natural gas connection pipe (6). Gas source connectors and fittings from the same gas source on each detachable burner are assembled into a gas distribution assembly.

2. The recycled lead alloy pot according to claim 1, characterized in that: Each gas distribution component includes a gas chamber, which is provided with an inlet connected to a gas source and multiple outlets. The number of outlets is the same as the number of detachable burners. The gas source is natural gas, oxygen, or compressed air. The inlet of each gas distribution component is connected to a gas source. Each outlet is connected to the corresponding gas source connector on each detachable burner via a metal hose. A flow regulating valve (14) and a flame arrester (13) are installed sequentially on the metal hose.

3. The recycled lead alloy pot according to claim 1, characterized in that: The tailstock includes a sealing tube 1, a connecting tube 2, and a connecting tube 3 that are sealed and connected sequentially from front to back; The head end of the oxygen casing (9) is detachably installed at the rear of the connecting pipe three. The connecting pipe three is connected to the oxygen connecting pipe (2). The head end of the natural gas casing (8) passing through the connecting pipe three is detachably installed at the rear of the connecting pipe two. The connecting pipe two is connected to the natural gas connector pipe (6). The head end of the compressed air casing (7) passing through the connecting pipe three and the connecting pipe two is detachably installed at the rear of the end cap pipe one. The front part of the end cap pipe one is inclined to connect to the compressed air connecting pipe (1). A connecting ring cavity is formed between the inner wall of the connecting pipe three and the outer wall of the natural gas casing (8). The oxygen connecting pipe (2) is connected to the oxygen channel (5) through the connecting ring cavity. A connecting ring cavity is formed between the inner wall of the connecting pipe two and the outer wall of the compressed air casing (7). The natural gas connector pipe (6) is connected to the natural gas channel (4) through the connecting ring cavity.

4. The recycled lead alloy pot according to claim 3, characterized in that: The end cap tube 1 has a flange at the rear, and the connecting tubes 2 and 3 have flanges at both ends. The flange at the beginning of the connecting tube 2 is sealed to the flange of the end cap tube 1, and the flange at the end of the connecting tube 2 is sealed to the flange at the beginning of the connecting tube 3.

5. The recycled lead alloy pot according to claim 1, characterized in that: The length of the oxygen casing (9) is less than the length of the natural gas casing (8) and the length of the compressed air casing (7); the compressed air connecting pipe (1) is an inclined pipe, and the oxygen connecting pipe (2) and the natural gas connector pipe (6) are both bent pipes.

6. The recycled lead alloy pot according to claim 1, characterized in that: The support layer (12) consists of a steel frame and bricks filled in the steel frame.

7. The recycled lead alloy pot according to claim 1, characterized in that: The outlets of each detachable burner are arranged tangentially along the outer wall of the lead pot (10).

8. The recycled lead alloy pot according to claim 4, characterized in that: The detachable burner is detachably mounted on the support layer (12) via a bracket (20), and the bracket (20) is located at the three ends of the connecting pipe.

9. A detachable burner, characterized in that: It includes a compressed air casing (7), a natural gas casing (8), and an oxygen casing (9) that are sequentially installed from the inside out. The inner cavity of the compressed air casing (7) is a compressed air passage (3), the annular cavity between the outer wall of the compressed air casing (7) and the inner wall of the natural gas casing (8) is a natural gas passage (4), and the annular cavity between the outer wall of the natural gas casing (8) and the inner wall of the oxygen casing (9) is an oxygen passage (5). It also includes a tailstock, which consists of a sealing tube 1, a connecting tube 2, and a connecting tube 3 that are sealed and connected sequentially from front to back; The head end of the oxygen casing (9) is detachably installed at the rear of the connecting pipe three. The connecting pipe three is connected to the oxygen connecting pipe (2). The head end of the natural gas casing (8) passing through the connecting pipe three is detachably installed at the rear of the connecting pipe two. The connecting pipe two is connected to the natural gas connector pipe (6). The head end of the compressed air casing (7) passing through the connecting pipe three and the connecting pipe two is detachably installed at the rear of the end cap pipe one. The front part of the end cap pipe one is inclined to connect to the compressed air connecting pipe (1). A connecting ring cavity is formed between the inner wall of the connecting pipe three and the outer wall of the natural gas casing (8). The oxygen connecting pipe (2) is connected to the oxygen channel (5) through the connecting ring cavity. A connecting ring cavity is formed between the inner wall of the connecting pipe two and the outer wall of the compressed air casing (7). The natural gas connector pipe (6) is connected to the natural gas channel (4) through the connecting ring cavity.

10. The detachable burner according to claim 9, characterized in that: The length of the oxygen casing (9) is less than the length of the natural gas casing (8) and the length of the compressed air casing (7); the compressed air connecting pipe (1) is an inclined pipe, and the oxygen connecting pipe (2) and the natural gas connector pipe (6) are both bent pipes.

Images