Waste gas discharging device during discharging of anode furnace
By integrating a collection hood, cyclone dust collector, waste heat recovery components, and desulfurization tower, the environmental pollution and high cost problems in the treatment of anode furnace discharge gas have been solved, achieving efficient purification of waste gas and heat recovery, and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-03-31
AI Technical Summary
Existing technologies for treating exhaust gas during anode furnace discharge suffer from severe environmental pollution and high costs, especially direct emissions and the limited effectiveness of baghouse dust collectors.
The device employs a combination of a collection hood, a cyclone dust collector, a waste heat recovery component, a desulfurization tower, and a spray component to remove dust and sulfur dioxide from the exhaust gas through cyclone dust removal, heat recovery, and desulfurization.
It effectively removes dust and sulfur dioxide from waste gas, recovers heat from waste gas, reduces production costs, and achieves compliant emissions, resulting in significant economic and environmental benefits.
Smart Images
Figure CN224065946U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal smelting technology, and in particular to a waste gas discharge device during the discharge of materials from an anode furnace. Background Technology
[0002] Anode furnaces are crucial equipment in the smelting of non-ferrous metals such as copper and nickel, primarily used for refining crude metals. During the discharge process of an anode furnace, a large amount of high-temperature, dust-laden waste gas is generated. This waste gas is not only high in temperature and dust content, but also contains harmful gases such as sulfur dioxide. Direct emission of this gas would cause serious environmental pollution.
[0003] Currently, the following two methods are mainly used for waste gas treatment during anode furnace discharge:
[0004] 1. Direct emission: Directly discharging waste gas into the atmosphere. This method is simple and crude, but it causes serious environmental pollution and has been gradually phased out.
[0005] 2. Baghouse dust collector: Baghouse dust collectors are used to remove dust from exhaust gas. This method can effectively reduce the dust content in exhaust gas, but the effect on treating harmful gases such as sulfur dioxide is limited, and baghouse dust collectors are prone to clogging and have high maintenance costs.
[0006] Therefore, a waste gas discharge device is provided for the discharge of materials from an anode furnace. Utility Model Content
[0007] To address the shortcomings of existing technologies, this utility model provides a waste gas discharge device for anode furnace discharge. It has a simple structure and is easy to operate. It can effectively remove dust and sulfur dioxide from the waste gas during anode furnace discharge, recover heat from the waste gas, save energy, reduce production costs, and achieve compliant emissions of waste gas. It has significant economic and environmental benefits and overcomes the shortcomings of existing technologies.
[0008] To achieve the above objectives, the present invention adopts the following technical solution:
[0009] A waste gas discharge device for an anode furnace includes a collection hood, the upper end of which is connected to a first pipe, one end of which is connected to a cyclone dust collector body, the outlet of which is connected to a second pipe, one end of which is connected to a waste heat recovery collection component, and the waste heat recovery collection component is connected to a desulfurization mechanism.
[0010] As a further embodiment of this utility model: the waste heat recovery and collection component includes a water storage tank, a heat exchange coil is fixed inside the water storage tank, one end of the heat exchange coil extends to the outside of the water storage tank and connects to one end of the second pipe, a water inlet is provided at the top of the water storage tank, and a drain valve is provided at the bottom of one side of the water storage tank.
[0011] As a further embodiment of this utility model: the desulfurization mechanism includes a desulfurization tower, the interior of which is provided with a spray assembly and a packing layer, and the top of the desulfurization tower is provided with an exhaust pipe.
[0012] As a further embodiment of this utility model: the spraying assembly includes an annular spray pipe fixed inside the desulfurization tower, spray heads are installed at equal intervals on the annular spray pipe, and one end of the annular spray pipe extends to the outside of the desulfurization tower and is connected to the desulfurizing agent pumping device.
[0013] As a further embodiment of this utility model: the other end of the heat exchange coil extends to the outside of the water storage tank and is connected to the air inlet of the desulfurization tower. A water collection hopper is fixed inside the lower part of the desulfurization tower. A drain pipe is connected to the bottom of the water collection hopper. One end of the drain pipe extends to the outside of the desulfurization tower and is connected to a drain valve.
[0014] As a further improvement of this invention, a fan is installed at the bottom of the inner wall of the collection hood.
[0015] The beneficial effects of this utility model are as follows:
[0016] With its simple structure and convenient operation, it can effectively remove dust and sulfur dioxide from the exhaust gas during anode furnace discharge, recover heat from the exhaust gas, save energy, reduce production costs, and achieve compliant emissions of exhaust gas, thus having significant economic and environmental benefits. Attached Figure Description
[0017] Figure 1 This is a first-view overall structural diagram of a waste gas discharge device for an anode furnace during material discharge, as proposed in this utility model.
[0018] Figure 2 This is a second-view overall structural diagram of a waste gas discharge device for an anode furnace during material discharge, as proposed in this utility model.
[0019] Figure 3 This is a partial cross-sectional structural diagram of a waste gas discharge device for an anode furnace during material discharge, as proposed in this utility model.
[0020] Figure 4 This utility model proposes a waste gas discharge device for anode furnace discharge. Figure 3 Enlarged structural diagram at point A in the middle.
[0021] In the diagram: 1. Collection hood; 2. First pipe; 3. Second pipe; 4. Cyclone dust collector body; 5. Water storage tank; 6. Drain valve; 7. Desulfurization tower; 8. Exhaust pipe; 9. Annular spray pipe; 10. Spray head; 11. Sewage valve; 12. Water collection hopper; 13. Sewage pipe; 14. Heat exchange coil; 15. Fan; 16. Packing layer. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Example 1, referring to Figure 1-4 A waste gas discharge device for anode furnace discharge includes a collection hood 1, a fan 15 installed at the bottom of the inner wall of the collection hood 1, a first pipe 2 connected to the upper end of the collection hood 1, a cyclone dust collector body 4 connected to one end of the first pipe 2, a second pipe 3 connected to the air outlet of the cyclone dust collector body 4, a waste heat recovery collection component connected to one end of the second pipe 3, and a desulfurization mechanism connected to the waste heat recovery collection component.
[0024] The waste heat recovery and collection assembly includes a water storage tank 5, inside which a heat exchange coil 14 is fixed. One end of the heat exchange coil 14 extends to the outside of the water storage tank 5 and is connected to one end of the second pipe 3. A water inlet is provided at the top of the water storage tank 5, and a drain valve 6 is provided at the bottom of one side of the water storage tank 5.
[0025] The desulfurization unit includes a desulfurization tower 7, which is equipped with a spray assembly and a packing layer 16 inside. An exhaust pipe 8 is installed at the top of the desulfurization tower 7.
[0026] The spray assembly includes an annular spray pipe 9 fixed inside the desulfurization tower 7, with spray heads 10 installed at equal intervals on the annular spray pipe 9. One end of the annular spray pipe 9 extends to the outside of the desulfurization tower 7 and is connected to the desulfurizing agent pumping device.
[0027] The other end of the heat exchange coil 14 extends to the outside of the water storage tank 5 and is connected to the air inlet of the desulfurization tower 7. A water collection hopper 12 is fixed inside the lower part of the desulfurization tower 7. A drain pipe 13 is connected to the bottom of the water collection hopper 12. One end of the drain pipe 13 extends to the outside of the desulfurization tower 7 and is connected to a drain valve 11.
[0028] Working principle: By turning on the fan 15, the exhaust gas is drawn into the collection hood 1. The exhaust gas undergoes preliminary dust removal through the cyclone dust collector body 4. The exhaust gas flows through the heat exchange coil 14 to transfer heat to the cold water in the water storage tank 5 to achieve heat recovery. Then the exhaust gas enters the desulfurization tower 7. The spray head 10 sprays desulfurizing agent to desulfurize the exhaust gas. After the exhaust gas rises, it comes into contact with the packing layer 16. The packing layer 16 is a structure in which a layer of activated carbon particles is laid on the support net, which facilitates further adsorption and purification of the exhaust gas and improves the purification effect of the exhaust gas. The purified gas is discharged from the exhaust pipe 8.
[0029] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. Anode furnace charging and exhaust gas discharge device comprising a collecting hood (1), characterized in that, The upper end of the collecting cover (1) is connected with a first pipeline (2), one end of the first pipeline (2) is connected with a cyclone dust collector body (4), the air outlet of the cyclone dust collector body (4) is connected with a second pipeline (3), one end of the second pipeline (3) is connected with a waste heat recovery collecting assembly, and the waste heat recovery collecting assembly is connected with a desulfurization mechanism.
2. An apparatus for discharging exhaust gas during charging of an anode furnace according to claim 1, characterized in that The waste heat recovery collecting assembly comprises a water storage tank (5), a heat exchange coil (14) is fixed in the water storage tank (5), one end of the heat exchange coil (14) extends to the outside of the water storage tank (5) and is connected with one end of the second pipeline (3), a water inlet is arranged at the top end of the water storage tank (5), and a drain valve (6) is arranged at the bottom end of one side of the water storage tank (5).
3. An apparatus for discharging exhaust gas during charging of an anode furnace according to claim 1, wherein The desulfurization mechanism comprises a desulfurization tower (7), a spraying assembly and a filler layer (16) are arranged in the desulfurization tower (7), and an exhaust pipe (8) is arranged at the top end of the desulfurization tower (7).
4. An apparatus for discharging exhaust gas during charging of an anode furnace according to claim 3, wherein The spraying assembly comprises an annular spraying pipe (9) fixed to the top of the inside of the desulfurization tower (7), spray heads (10) are installed at equal distances on the annular spraying pipe (9), and one end of the annular spraying pipe (9) extends to the outside of the desulfurization tower (7) and is connected to a desulfurizer pumping device.
5. An apparatus for discharging exhaust gas during charging of an anode furnace according to claim 2, wherein The other end of the heat exchange coil (14) extends to the outside of the water storage tank (5) and is connected with the air inlet end of the desulfurization tower (7), a water collecting hopper (12) is fixed to the lower part of the inside of the desulfurization tower (7), a blowdown pipe (13) is connected to the bottom end of the water collecting hopper (12), and one end of the blowdown pipe (13) extends to the outside of the desulfurization tower (7) and is connected with a blowdown valve (11).
6. An apparatus for discharging exhaust gas during charging of an anode furnace according to claim 1, wherein The fan (15) is mounted to the inner wall bottom of the collecting cover (1).