Non-ferrous metal copper smelting waste heat boiler

Abstract

The utility model discloses a nonferrous metal copper smelting waste heat boiler, which relates to the technical field of waste heat boilers, and comprises a boiler body, one end of the boiler body is provided with a smoke inlet channel, one end of the smoke inlet channel far away from the boiler body is provided with a processing pipe, both ends of the processing pipe are provided with connecting pipes, and the top of the processing pipe is obliquely provided with a fixed pipe. When smoke enters the furnace body, the smoke firstly passes through the treatment pipe between the connecting pipes, and large-particle dust is filtered by the filter screen plate in the treatment pipe, so that the situation that parts in the furnace body are damaged after the large-particle dust enters the furnace body through the connecting pipes and the smoke inlet channel is avoided, and the protection effect is effectively achieved; when the filter screen plate is used, holes in the surface of the filter screen plate can be blocked, compressed air can be formed through work of the compressed air gun at the moment, and the compressed air is discharged through the air nozzle and then impacts the filter screen plate, so that large particles blocked on the filter screen plate can be blown off, and the passing ability of smoke is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat boilers, in particular to a waste heat boiler for smelting non-ferrous metal copper. Background Art

[0002] The working principle of the waste heat boiler for non-ferrous metal copper smelting is mainly to utilize the heat energy generated in the industrial production process, and convert the waste heat into steam or hot water through the waste heat recovery system, thereby realizing energy recovery and reuse. Specifically, in the copper smelting process, a large amount of high-temperature flue gas will be generated. These flue gases contain a large amount of heat energy, which is usually discharged into the atmosphere for waste. The waste heat boiler is installed on the flue of the production equipment to receive these high-temperature flue gases. After the flue gas enters the waste heat boiler, it exchanges heat with the circulating medium in the boiler (usually water or steam) through the heat exchanger. In this process, the heat energy of the flue gas is transferred to the circulating medium, which is heated and converted into steam or hot water. In this way, the waste heat that would have been wasted is effectively recycled and converted into reusable steam or hot water. These steam or hot water can be used in multiple links in industrial production, such as heating, distillation, heating, etc., thereby improving the energy utilization efficiency in the production process and achieving the purpose of energy saving and resource recycling.

[0003] In the process of implementing the solution, the inventor found that the following problems in the prior art have not been well solved: the smoke generated in the process of non-ferrous copper smelting contains large particles of dust when entering the boiler. The main components of the smoke include particulate matter, gaseous pollutants and harmful chemicals. Particulate matter is the main component of the smoke. The presence of large particles of dust may have a negative impact on the operating efficiency and safety of the boiler. They may adhere to the heating surface of the boiler, reduce the heat transfer efficiency, and increase energy consumption. At the same time, large particles of dust may also block the flue, affect the exhaust effect, and even cause safety accidents. Utility Model Content

[0004] The main purpose of the utility model is to provide a waste heat boiler for non-ferrous metal copper smelting, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A waste heat boiler for smelting non-ferrous metal copper comprises a furnace body, one end of which is provided with a smoke inlet channel, an end of the smoke inlet channel away from the furnace body is provided with a treatment pipe, both ends of the treatment pipe are provided with connecting pipes, a fixed pipe is obliquely provided on the top of the treatment pipe, an end of the fixed pipe away from the treatment pipe is fixed with a compressed air gun through a fixing frame, an end of the compressed air gun close to the fixed pipe is provided with an air nozzle, and the air nozzle is located inside the fixed pipe, a filter plate is provided at one end of the treatment pipe close to the smoke inlet channel, an ash trough is excavated at the bottom of the treatment pipe at the end of the filter plate away from the smoke inlet channel, an external box is provided at the bottom of the treatment pipe at the ash trough position, and an ash box is provided at the bottom of the external box.

[0007] Preferably, a sealing flange assembly is provided between the external box and the ash box, and between the smoke inlet channel and the adjacent connecting pipe, and the external box and the ash box, and the smoke inlet channel and the connecting pipe are detachably connected via the sealing flange assembly.

[0008] Preferably, a close fixing ring is welded inside the processing tube at one end of the filter plate close to the smoke inlet channel, and the close fixing ring is in contact with the end close to the filter plate.

[0009] Preferably, the filter plate is provided with a plurality of screws, and the filter plate is fixedly connected to the tight fixing ring through the screws respectively.

[0010] Preferably, a plurality of support frames are fixed on the inner wall of the close fixing ring close to one end of the filter plate, and the support frames are respectively in contact with the side walls close to the filter plate.

[0011] Preferably, the inner diameter of the processing tube is larger than the inner diameter of the connecting tube, and the outer diameters of the filter plate and the tight fixing ring match the inner diameter of the processing tube.

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

[0013] 1. When the flue gas enters the furnace body, it will first pass through the processing pipe between the connecting pipes. Large particles of dust will be filtered by the filter plate in the processing pipe to prevent them from entering the furnace body through the connecting pipe and the smoke inlet channel and causing damage to its internal components, which effectively plays a protective role.

[0014] 2. After the filter plate has been filtering for a long time, the holes on its surface will be clogged. At this time, the compressed air gun will generate compressed air, which will be discharged from the air nozzle and then hit the filter plate. It can blow off the large particles blocking the filter plate and avoid affecting the permeability of the smoke.

[0015] 3. When compressed air impacts the filter plate, the close fixing ring increases the impact resistance of the filter plate frame, and the support frame inside the close fixing ring increases the impact resistance of the filter plate, thereby preventing it from being deformed due to long-term impact of gas.

[0016] 4. The washed-down large particles can enter the interior of the ash box through the ash trough and the external box, and be collected by the ash box to avoid accumulation inside the treatment tube and affecting the permeability of the flue gas; after disassembling the sealing flange assembly between the external box and the ash box, the large particles collected in the ash box can be cleaned to avoid affecting the normal collection work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a waste heat boiler for non-ferrous copper smelting in the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of a treatment tube and a fixed tube of a waste heat boiler for non-ferrous copper smelting according to the utility model;

[0019] Figure 3 This is a schematic diagram of the separation structure of a filter plate fixing ring of a waste heat boiler for non-ferrous copper smelting according to the utility model;

[0020] Figure 4 The utility model is a schematic cross-sectional structure diagram of a treatment tube, a fixed tube, an external box and an ash box of a waste heat boiler for non-ferrous copper smelting.

[0021] In the figure: 1. furnace body; 2. smoke inlet channel; 3. connecting pipe; 4. processing pipe; 5. fixing pipe; 6. compressed air gun; 7. air nozzle; 8. filter plate; 9. ash trough; 10. external box; 11. ash box; 12. support frame; 13. sealing flange assembly; 14. fixing ring; 15. screws. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figure 1-4As shown, a waste heat boiler for smelting non-ferrous metal copper comprises a furnace body 1, a smoke inlet channel 2 is arranged at one end of the furnace body 1, a treatment tube 4 is arranged at the end of the smoke inlet channel 2 away from the furnace body 1, connecting tubes 3 are arranged at both ends of the treatment tube 4, a fixed tube 5 is arranged obliquely on the top of the treatment tube 4, a compressed air gun 6 is fixed to the end of the fixed tube 5 away from the treatment tube 4 through a fixed frame, an air nozzle 7 is arranged at the end of the compressed air gun 6 close to the fixed tube 5, and the air nozzle 7 is located inside the fixed tube 5, a filter plate 8 is arranged at the end of the treatment tube 4 close to the smoke inlet channel 2, an ash trough 9 is excavated at the bottom of the treatment tube 4 at the end of the filter plate 8 away from the smoke inlet channel 2, an external box 10 is arranged at the bottom of the treatment tube 4 at the ash trough 9 position, and an ash box 11 is arranged at the bottom of the external box 10.

[0024] Specifically, a sealing flange assembly 13 is provided between the external box 10 and the ash box 11, and between the smoke inlet channel 2 and the adjacent connecting pipe 3. The external box 10 and the ash box 11, as well as the smoke inlet channel 2 and the connecting pipe 3 are detachably connected via the sealing flange assembly 13, for easy disassembly and assembly.

[0025] Specifically, a close fixing ring 14 is welded inside the processing tube 4 at one end of the filter plate 8 close to the smoke inlet channel 2, and the close fixing ring 14 is in contact with the end of the filter plate 8 close to it. A number of screws 15 are provided on the filter plate 8, and the filter plate 8 is fixedly connected to the close fixing ring 14 by the screws 15 respectively. A number of support frames 12 are fixed on the inner wall of the close fixing ring 14 close to one end of the filter plate 8, and the support frames 12 are in contact with the side walls close to the filter plate 8 respectively, thereby increasing the overall impact resistance of the filter plate 8.

[0026] Specifically, the inner diameter of the processing tube 4 is larger than the inner diameter of the connecting tube 3, and the outer diameters of the filter plate 8 and the tight fixing ring 14 match the inner diameter of the processing tube 4. The larger size of the processing tube 4 can make the smoke filtering more sufficient, and also avoid faster blockage caused by excessive flow rate under the same diameter condition.

[0027] Working principle: When the flue gas enters the furnace body 1, it will first pass through the processing tube 4 between the connecting tubes 3. Large particles of dust will be filtered by the filter plate 8 in the processing tube 4 to prevent them from entering the furnace body 1 through the connecting tube 3 and the smoke inlet channel 2 and causing damage to its internal components, which effectively plays a protective role. After a long period of filtration, the holes on the surface of the filter plate 8 will be blocked. At this time, the compressed air gun 6 will form compressed air, which will be discharged from the air nozzle 7 and then impact the filter plate 8, which can blow off the large particles blocking the filter plate 8 to avoid affecting the permeability of the flue gas. When the gas impacts the filter plate 8, the tight fixing ring 14 increases the impact resistance of the frame of the filter plate 8, and the support frame 12 in the tight fixing ring 14 increases the impact resistance of the filter plate 8, so as to avoid deformation caused by long-term gas impact. The large particles that are washed down can enter the interior of the ash box 11 through the ash trough 9 and the external box 10, and are collected by the ash box 11 to avoid accumulation in the processing tube 4 and affecting the permeability of the flue gas; after disassembling the sealing flange assembly 13 between the external box 10 and the ash box 11, the large particles collected in the ash box 11 can be cleaned to avoid affecting the normal collection work.

[0028] The circuits, electronic components and control modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to software and methods.

[0029] 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 waste heat boiler for non-ferrous copper smelting, comprising a furnace body (1), characterized in that: A smoke inlet channel (2) is provided at one end of the furnace body (1), a treatment tube (4) is provided at the end of the smoke inlet channel (2) away from the furnace body (1), connecting tubes (3) are provided at both ends of the treatment tube (4), a fixed tube (5) is provided at an angle at the top of the treatment tube (4), a compressed air gun (6) is fixed to the end of the fixed tube (5) away from the treatment tube (4) through a fixed frame, an air nozzle (7) is provided at the end of the compressed air gun (6) close to the fixed tube (5), and the air nozzle (7) is located inside the fixed tube (5), a filter plate (8) is provided inside the treatment tube (4) at the end close to the smoke inlet channel (2), an ash groove (9) is excavated at the bottom of the treatment tube (4) at the end of the filter plate (8) away from the smoke inlet channel (2), an external box (10) is provided at the bottom of the treatment tube (4) at the ash groove (9), and an ash box (11) is provided at the bottom of the external box (10).

2. A waste heat boiler for non-ferrous copper smelting according to claim 1, characterized in that: A sealing flange assembly (13) is provided between the external box (10) and the ash box (11), and between the smoke inlet channel (2) and the adjacent connecting pipe (3); the external box (10) and the ash box (11), and the smoke inlet channel (2) and the connecting pipe (3) are detachably connected via the sealing flange assembly (13).

3. The waste heat boiler for non-ferrous copper smelting according to claim 1, characterized in that: A close fixing ring (14) is welded inside the processing tube (4) at one end of the filter plate (8) close to the smoke inlet channel (2), and the close fixing ring (14) is in contact with the end close to the filter plate (8).

4. A waste heat boiler for non-ferrous copper smelting according to claim 3, characterized in that: A plurality of screws (15) are provided on the filter plate (8), and the filter plate (8) is fixedly connected to the tight fixing ring (14) via the screws (15) respectively.

5. The waste heat boiler for non-ferrous copper smelting according to claim 3, characterized in that: A plurality of support frames (12) are fixed on the inner wall of the close fixing ring (14) close to one end of the filter plate (8), and the support frames (12) are respectively in contact with the side walls close to the filter plate (8).

6. The waste heat boiler for non-ferrous copper smelting according to claim 3, characterized in that: The inner diameter of the processing tube (4) is larger than the inner diameter of the connecting tube (3), and the outer diameters of the filter plate (8) and the tight fixing ring (14) match the inner diameter of the processing tube (4).

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