A flue gas treatment system and energy-saving and environment-friendly furnace for metal smelting
By designing a rotatable baffle and a second extension section in the flue gas treatment system, combined with soot blowing and electrostatic adsorption devices, the problem that existing flue gas treatment systems cannot simultaneously achieve good treatment effect, simple structure and small space occupation is solved, and the functions of efficient soot cleaning and soot collection are realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI GLOBAL UNION TECHNOLOGY CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-23
Smart Images
Figure CN224398358U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal smelting technology, and in particular to a flue gas treatment system and an energy-saving and environmentally friendly furnace for metal smelting. Background Technology
[0002] Before alloy granulation, the alloy needs to be smelted to remove impurities and obtain an alloy with a specific composition. The first step in alloy smelting is to melt the raw materials. The flue gas generated in this process contains a large amount of particulate matter of metals and their oxides, as well as harmful gases. The flue gas needs to be specially treated before it can be discharged.
[0003] Existing flue gas treatment systems typically consist of multiple interconnected treatment units, such as dust collection boxes and acid gas absorption boxes. Flue gas is sequentially passed through each unit to target and remove harmful substances. While this method ensures strong treatment performance, it is structurally complex and occupies a significant amount of space. Utility Model Content
[0004] The main purpose of this utility model is to propose a flue gas treatment system and an energy-saving and environmentally friendly furnace for metal smelting, aiming to solve the problem that existing flue gas treatment systems cannot simultaneously achieve good flue gas treatment effect, simple structure, and small space occupation.
[0005] To achieve the above objectives, this utility model proposes a flue gas treatment system for use in an energy-saving and environmentally friendly furnace for metal smelting. The flue gas treatment system includes:
[0006] The flue has a first extension section and a second extension section that are connected to each other. The first extension section extends vertically and has an exhaust port at its upper end for communication with the outside. The second extension section extends horizontally and has an air inlet for communication with the furnace body.
[0007] Multiple baffles are spaced apart in the first extension section along the vertical direction. Each baffle has two opposing ash-blocking surfaces for blocking soot in the flue gas. The baffles are rotatable along their left-right axis so that during rotation, one of the ash-blocking surfaces faces downward to contact the flue gas. There is a gap between the baffles and the inner wall of the first extension section for the flue gas to pass through.
[0008] The second extension section is used to receive soot blocked by the plurality of baffles.
[0009] In one embodiment, a plurality of through holes are provided on the wall surface of the first extension section;
[0010] The flue gas treatment system further includes multiple rotating devices, each of which includes:
[0011] A base for mounting on the outer wall surface of the first extension section;
[0012] The motor is fixedly mounted on the base; and,
[0013] A rotating rod is fixedly installed on the output shaft of the motor. The rotating rod can extend into the first extension section through the corresponding through hole and connect with the corresponding baffle so as to drive the baffle to rotate under the drive of the motor.
[0014] In one embodiment, the flue gas treatment system further includes multiple soot blowing devices, each of which includes a fan. The air outlet of the fan is oriented toward the corresponding baffle for blowing off soot from the baffle.
[0015] In one embodiment, the flue gas treatment system further includes a plurality of electrostatic adsorption devices, each of the electrostatic adsorption devices comprising:
[0016] An adsorption plate is disposed on the dust-blocking surface; and,
[0017] An electrostatic generator is connected to the adsorption plate to make the adsorption plate statically charged.
[0018] In one embodiment, the flue gas treatment system further includes a purification device disposed within the first extension section and near the exhaust port, for removing harmful substances from the flue gas.
[0019] In one embodiment, a receiving block is provided in the second extension section, and the receiving block has an inclined surface on the side facing the exhaust port, the inclined surface being inclined in a direction away from the air inlet.
[0020] In one embodiment, an ash outlet is provided on the wall surface of the second extension section, and the ash outlet is provided corresponding to the inclined surface so that the blocked soot slides down the inclined surface and is discharged from the ash outlet.
[0021] In one embodiment, each of the baffles is configured as one of a flat plate, a filter screen, and a corrugated plate.
[0022] This utility model also proposes an energy-saving and environmentally friendly furnace for metal smelting, comprising:
[0023] The furnace body has an internal cavity for containing metal;
[0024] A heating system, located below the furnace body, is used to heat the inner cavity for melting metal; and,
[0025] The flue gas treatment system includes:
[0026] The flue has a first extension section and a second extension section that are connected to each other. The first extension section extends vertically and has an exhaust port at its upper end for communication with the outside. The second extension section extends horizontally and has an air intake for communication with the furnace body.
[0027] Multiple baffles are spaced apart in the first extension section along the vertical direction. Each baffle has two opposing ash-blocking surfaces for blocking soot in the flue gas. The baffles are rotatable along their left-right axis so that during rotation, one of the ash-blocking surfaces faces downward to contact the flue gas. There is a gap between the baffles and the inner wall of the first extension section for the flue gas to pass through.
[0028] The second extension section is used to receive the soot blocked by the multiple baffles;
[0029] The flue gas treatment system is located above the furnace body, and the air inlet of the flue gas treatment system is connected to the inner cavity of the furnace body.
[0030] In one embodiment, the energy-saving and environmentally friendly furnace for metal smelting further includes a heat exchange system, the heat exchange system comprising:
[0031] Multiple heat exchange pipes, each containing coolant, are disposed in close contact with the first extension section to absorb heat dissipated by the first extension section, causing the liquid coolant in the heat exchange pipe to transform into a gaseous state; and...
[0032] A turbine generator, the steam inlet of which is connected to multiple heat exchange pipes, converts kinetic energy into electrical energy after receiving gaseous coolant from the multiple heat exchange pipes. The output end of the turbine generator is electrically connected to the energy storage end of the heating system to deliver the generated electrical energy to the heating system.
[0033] The technical solution of this utility model, by setting multiple baffles in the first extension section, allows the soot in the flue gas to be blocked by the baffles during the upward process of the flue gas. This achieves a cleaning effect without occupying space outside the flue, making the entire system more streamlined. Furthermore, by rotating the baffles, the two ash-blocking surfaces of the baffles can be fully utilized to block more soot after a single cleaning. The left and right extending second extension section allows the blocked soot to be collected, thus serving a soot collection function. This solution has a simple structure, occupies little space, and has excellent ash-blocking and soot-collecting functions, thereby solving the problem that existing flue gas treatment systems cannot simultaneously achieve good flue gas treatment effect, simple structure, and small space occupation. Attached Figure Description
[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0035] Figure 1 A schematic diagram of an embodiment of the flue gas treatment system provided by this utility model;
[0036] Figure 2 This is a schematic diagram of an embodiment of the energy-saving and environmentally friendly furnace for metal smelting provided by this utility model.
[0037] Explanation of icon numbers:
[0038] 1000. Energy-saving and environmentally friendly furnaces used for metal smelting;
[0039] 100. Flue gas treatment system; 1. Flue; 11. First extension section; 111. Exhaust port; 112. Through hole; 12. Second extension section; 121. Air inlet; 122. Ash outlet; 2. Baffle; 21. Ash blocking surface; 3. Rotating device; 31. Base; 32. Motor; 33. Rotating rod; 4. Soot blowing device; 41. Fan; 411. Air blowing port; 5. Purification device; 6. Receiving block; 61. Inclined surface;
[0040] 200. Furnace body;
[0041] 300. Heating system;
[0042] 400. Heat exchange system; 7. Heat exchange piping; 8. Turbine generator.
[0043] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0045] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0046] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0047] Before alloy granulation, the alloy needs to be smelted to remove impurities and obtain an alloy with a specific composition. The first step in alloy smelting is to melt the raw materials. The flue gas generated in this process contains a large amount of particulate matter of metals and their oxides, as well as harmful gases. The flue gas needs to be specially treated before it can be discharged.
[0048] Existing flue gas treatment systems typically consist of multiple interconnected treatment units, such as dust collection boxes and acid gas absorption boxes. Flue gas is sequentially passed through each unit to target and remove harmful substances. While this method ensures strong treatment performance, it is structurally complex and occupies a significant amount of space.
[0049] The main purpose of this utility model is to propose a flue gas treatment system and an energy-saving and environmentally friendly furnace for metal smelting, aiming to solve the problem that existing flue gas treatment systems cannot simultaneously achieve good flue gas treatment effect, simple structure, and small space occupation.
[0050] To achieve the above objectives, please refer to Figure 1This utility model proposes a flue gas treatment system 100 for installation in an energy-saving and environmentally friendly furnace for metal smelting. The flue gas treatment system 100 includes a flue 1 and multiple baffles 2. The flue 1 has a first extension section 11 and a second extension section 12 that are connected. The first extension section 11 extends vertically and has an exhaust port 111 at its upper end for communication with the outside. The second extension section 12 extends horizontally and has an air inlet 121 for communication with the furnace body 200. The multiple baffles 2 are spaced vertically within the first extension section 11. Each baffle 2 has two opposing ash-blocking surfaces 21 for blocking soot in the flue gas. The baffles 2 can rotate along their horizontal axis so that during rotation, one of the ash-blocking surfaces 21 faces downward to contact the flue gas. There is a gap between the baffles 2 and the inner wall of the first extension section 11 for the flue gas to pass through. The second extension section 12 is used to receive the soot blocked by the multiple baffles 2.
[0051] The technical solution of this utility model, by setting multiple baffles 2 within the first extension section 11, allows the soot in the flue gas to be blocked by the baffles 2 during the upward process of the flue gas. This achieves a ash-cleaning effect without occupying space outside the flue duct 1, making the entire system more streamlined. Furthermore, by rotating the baffles 2, the two ash-blocking surfaces 21 of the baffles 2 can be fully utilized to block more soot after one cleaning cycle. The second extension section 12 extending to the left and right allows the blocked soot to be collected, thus serving a soot collection function. This solution has a simple structure, occupies little space, and has excellent ash-blocking and soot-collecting functions, thereby solving the problem that existing flue gas treatment systems 100 cannot simultaneously achieve good flue gas treatment effect, simple structure, and small space occupation.
[0052] It is understood that flue gas generally includes mixed gas and many solid particles. These solid particles gather together to form soot in this solution. The baffle 2 in this solution is designed for the soot. When the flue gas passes through the first extension section 11, the gas will pass through the gap between the baffle 2 and the wall of the first extension section 11, and the soot will be blocked by the ash-blocking surface 21 and fall into the second extension section 12.
[0053] It should be noted that this solution does not limit the specific implementation of the baffle 2. In one embodiment, each baffle 2 is configured as a flat plate, a filter screen, or a corrugated plate. This configuration, by rationally selecting the surface shape of each baffle 2, can improve the ash-blocking effect. For example, a filter screen can be configured at the lower position, a flat plate at the middle position, and a corrugated plate near the upper position. With this configuration, since the smoke velocity is higher at the lower position, the filter screen can effectively filter the smoke and block larger particles. The flat plate near the middle position significantly reduces the smoke velocity and blocks smaller particles. After the flat plate slows the smoke, the corrugated plate at the upper position allows the ash floating in the air to fully contact the ash-blocking surface 21, further improving the system's ash-cleaning capability.
[0054] Of course, this solution does not limit the arrangement of the baffles 2. In one embodiment, adjacent baffles 2 in the vertical direction are spaced apart in the horizontal direction. This arrangement can significantly increase the probability of flue gas contacting the baffles 2, thereby improving the dust removal capability of the device.
[0055] To achieve the rotation of the baffle 2, in one embodiment of this invention, a plurality of through holes 112 are provided on the wall surface of the first extension section 11; the flue gas treatment system 100 further includes a plurality of rotating devices 3, each of which includes a base 31, a motor 32, and a rotating rod 33. The base 31 is used to be installed on the outer wall surface of the first extension section 11; the motor 32 is fixedly mounted on the base 31; the rotating rod 33 is fixedly mounted on the output shaft of the motor 32, and the rotating rod 33 can extend into the first extension section 11 through the corresponding through hole 112 and connect with the corresponding baffle 2, so as to drive the baffle 2 to rotate under the drive of the motor 32. With this configuration, by placing the motor 32 on the outer wall surface of the first extension section 11, the motor 32 is protected from interference by the flue gas; by placing the baffle 2 on the rotating rod 33, the rotation of the baffle 2 around the left-right axis is realized. The structure is simple and the installation is convenient.
[0056] In one embodiment of this utility model, the flue gas treatment system 100 further includes multiple soot blowing devices 4, each of which includes a fan 41. The air outlet 411 of the fan 41 is oriented towards the corresponding baffle 2 to blow off the soot on the baffle 2. This arrangement avoids the long-term accumulation of soot on the baffle 2, which could cause the baffle 2 to deform or even break, thus improving the lifespan of the system.
[0057] In one embodiment of this utility model, the flue gas treatment system 100 further includes multiple electrostatic adsorption devices. Each electrostatic adsorption device includes an adsorption plate and an electrostatic generator. The adsorption plate is disposed on the ash-blocking surface 21, and the electrostatic generator is connected to the adsorption plate to make the adsorption plate statically charged. This arrangement enables the baffle 2 to adsorb soot, thereby improving the ash-blocking capacity of the baffle 2 and enhancing the ash-removing capacity of the system. When ash removal is stopped, the electrostatic generator is turned off, causing the adsorption plate to lose its adsorption capacity, and the soot falls into the second extension section 12, preventing soot from accumulating on the adsorption plate for a long time.
[0058] In one embodiment of this utility model, the flue gas treatment system 100 further includes a purification device 5, which is disposed within the first extension section 11 and close to the exhaust port 111, for removing harmful substances from the flue gas. This arrangement enables the system to remove harmful gases such as acidic gases and organic gases, thereby improving the flue gas treatment effect of the system.
[0059] It is worth mentioning that the above embodiments can be selectively configured as needed. They can be configured one by one or simultaneously. This solution does not impose any specific restrictions here.
[0060] In one embodiment of this utility model, a receiving block 6 is provided within the second extension section 12. The receiving block 6 has an inclined surface 61 on the side facing the exhaust port 111, and the inclined surface 61 is inclined away from the air inlet 121. This arrangement guides the blocked soot to a group by the inclined surface 61, facilitating subsequent collection and processing.
[0061] Furthermore, an ash outlet 122 is provided on the wall surface of the second extension section 12. The ash outlet 122 is provided corresponding to the inclined surface 61 so that the blocked soot slides down the inclined surface 61 and is discharged from the ash outlet 122. This arrangement makes it easier for operators to remove soot from the flue 1 and speeds up the cleaning of soot in the flue 1.
[0062] Please refer to Figure 2 This utility model also proposes an energy-saving and environmentally friendly furnace 1000 for metal smelting, including a furnace body 200, a heating system 300 and the aforementioned flue gas treatment system. The furnace body 200 has an inner cavity for containing metal. The heating system 300 is located below the furnace body 200 and is used to heat the inner cavity to smelt the metal. The flue gas treatment system 100 is located above the furnace body 200, and the air inlet 121 of the flue gas treatment system 100 is connected to the inner cavity of the furnace body 200.
[0063] The technical solution of this utility model, by setting the flue gas treatment system in the furnace body 200, can better treat the generated flue gas during the metal smelting process, while ensuring that the discharged flue gas meets the standards, reducing the manufacturing cost of the furnace and playing a role in energy conservation and environmental protection.
[0064] Furthermore, the energy-saving and environmentally friendly furnace 1000 for metal smelting also includes a heat exchange system 400. The heat exchange system 400 includes multiple heat exchange pipes 7 and a turbine generator 8. Each heat exchange pipe 7 stores coolant and is closely attached to the first extension section 11. After absorbing heat dissipated by the first extension section 11, the liquid coolant in the heat exchange pipe 7 is converted into a gaseous state. The steam inlet of the turbine generator 8 is connected to the multiple heat exchange pipes 7, so that after receiving the gaseous coolant from the multiple heat exchange pipes 7, the kinetic energy is converted into electrical energy. The output end of the turbine generator 8 is electrically connected to the energy storage end of the heating system 300 to transmit the generated electrical energy to the heating system 300. With this configuration, a portion of the internal energy in the flue gas can be converted into electrical energy through the heat exchange system 400, thereby utilizing it in metal smelting and achieving energy conservation and environmental protection.
[0065] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A flue gas treatment system for use in an energy-saving and environmentally friendly furnace for metal smelting, characterized in that, The flue gas treatment system includes: The flue has a first extension section and a second extension section that are connected to each other. The first extension section extends vertically and has an exhaust port at its upper end for communication with the outside. The second extension section extends horizontally and has an air inlet for communication with the furnace body. Multiple baffles are spaced apart in the first extension section along the vertical direction. Each baffle has two opposing ash-blocking surfaces for blocking soot in the flue gas. The baffles are rotatable along their left-right axis so that during rotation, one of the ash-blocking surfaces faces downward to contact the flue gas. There is a gap between the baffles and the inner wall of the first extension section for the flue gas to pass through. The second extension section is used to receive soot blocked by the plurality of baffles.
2. The flue gas treatment system as described in claim 1, characterized in that, Multiple through holes are provided on the wall surface of the first extension section; The flue gas treatment system further includes multiple rotating devices, each of which includes: A base for mounting on the outer wall surface of the first extension section; The motor is fixedly mounted on the base; and, A rotating rod is fixedly installed on the output shaft of the motor. The rotating rod can extend into the first extension section through the corresponding through hole and connect with the corresponding baffle so as to drive the baffle to rotate under the drive of the motor.
3. The flue gas treatment system as described in claim 1, characterized in that, The flue gas treatment system also includes multiple soot blowing devices, each of which includes a fan. The air outlet of the fan is oriented toward the corresponding baffle to blow off the soot on the baffle.
4. The flue gas treatment system as described in claim 1, characterized in that, The flue gas treatment system further includes multiple electrostatic adsorption devices, each of which includes: An adsorption plate is disposed on the dust-blocking surface; and, An electrostatic generator is connected to the adsorption plate to make the adsorption plate statically charged.
5. The flue gas treatment system as described in claim 1, characterized in that, The flue gas treatment system also includes a purification device located within the first extension section and close to the exhaust port, for removing harmful substances from the flue gas.
6. The flue gas treatment system as described in claim 1, characterized in that, The second extension section is provided with a receiving block, and the receiving block has an inclined surface on the side facing the exhaust port, and the inclined surface is inclined in the direction away from the air inlet.
7. The flue gas treatment system as described in claim 6, characterized in that, The second extension section has an ash outlet on its wall surface, which is provided corresponding to the inclined surface so that the blocked soot slides down the inclined surface and is discharged from the ash outlet.
8. The flue gas treatment system as described in claim 1, characterized in that, Each of the baffles is configured as one of a flat plate, a filter screen, and a corrugated plate.
9. An energy-saving and environmentally friendly furnace for metal smelting, characterized in that, include: The furnace body has an internal cavity for containing metal; A heating system, located below the furnace body, is used to heat the inner cavity to melt metal; as well as, The flue gas treatment system as described in any one of claims 1 to 8 is located above the furnace body, and the air inlet of the flue gas treatment system is connected to the inner cavity of the furnace body.
10. The energy-saving and environmentally friendly furnace for metal smelting as described in claim 9, characterized in that, The energy-saving and environmentally friendly furnace for metal smelting also includes a heat exchange system, which comprises: Multiple heat exchange pipes, each containing coolant, are disposed in close contact with the first extension section to absorb heat dissipated by the first extension section, causing the liquid coolant in the heat exchange pipe to transform into a gaseous state; and... A turbine generator, the steam inlet of which is connected to multiple heat exchange pipes, converts kinetic energy into electrical energy after receiving gaseous coolant from the multiple heat exchange pipes. The output end of the turbine generator is electrically connected to the energy storage end of the heating system to deliver the generated electrical energy to the heating system.