Flue gas collecting device for stokehold copper discharge
By designing a smoke gas collection device that integrates smoke hood A, chute cover and copper enclosure, the problem of difficulty in collecting smoke in copper chutes is solved, and the smoke collection and environmental optimization of the entire process is achieved.
Patent Information
- Application Number
- CN202422437313.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-10-10
AI Technical Summary
In modern copper fire smelting, it is difficult to arrange a suitable smoke collecting hood with a slender copper chute, which makes it difficult to collect smoke, and the smoke in the copper enclosure room can easily dissipate into the converter factory, affecting the operating environment.
A smoke collection device is designed, including smoke collecting hood A, chute cover plate, smoke collecting hood B and copper compartment. The smoke collecting hood A is installed at the copper outlet of the melting furnace. The chute cover plate is arranged along the copper compartment chute. The copper compartment is a sealed room. The smoke collecting hood B is installed at the top of the copper compartment. The smoke exhaust pipe is connected to the negative pressure exhaust system and is equipped with electrically controlled valves and pressure sensors for automatic control.
The flue gas collection of copper outlets, copper chutes and copper compartments is achieved, and the on-site operating environment is optimized to avoid flue gas overflow.
Smart Images
Figure CN223165952U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of copper smelting production, in particular to a flue gas collection device for copper discharging in front of a furnace. Background Technique
[0002] In modern copper pyrometallurgy, a settling electric furnace is mainly used to achieve the settling separation of matte and slag and reduce the copper content in the slag. The high-temperature molten matte is discharged through a copper discharging port and then enters a ladle along a copper discharging chute. Among them, the components of matte are mainly Cu, Fe, and S. During the discharge process of high-temperature matte, flue gas containing SO2 will be continuously generated, and flue gas collection needs to be carried out continuously. There are the following problems in the flue gas collection in this area: First, the copper discharging chute is long and thin, and it is difficult to arrange a suitable smoke collecting hood to collect flue gas; second, there is too much flue gas in the copper melting room, which will escape into the converter workshop. Content of the Utility Model
[0003] In order to solve the above technical problems, the utility model provides a flue gas collection device for copper discharging in front of a furnace.
[0004] The specific scheme of the utility model is as follows: A flue gas collection device for copper discharging in front of a furnace includes a smoke collecting hood A, a chute cover plate, a smoke collecting hood B, and a copper melting room. The smoke collecting hood A is installed at the copper discharging port of the smelting furnace. The chute cover plate is installed at the top end of the copper discharging chute and is arranged along the entire length of the copper discharging chute. The copper melting room is a sealed room, which is arranged at the end of the copper discharging chute and is used to accommodate a copper ladle trolley. The smoke collecting hood B is installed at the top of the copper melting room. Smoke exhaust pipes are provided at the tops of the smoke collecting hood A and the smoke collecting hood B, and the smoke exhaust pipes are connected to a negative pressure exhaust system.
[0005] Further, a split-type hood door is provided on one side of the smoke collecting hood A facing the copper discharging chute. An arc-shaped notch is provided at the lower end in the middle of the split-type hood door, and the arc-shaped notch matches the copper discharging chute.
[0006] Further, electric doors are provided on both sides of the copper melting room.
[0007] Further, two vertical rib plates are welded on the top surface of the chute cover plate, and lifting holes are provided on the vertical rib plates.
[0008] Further, electric control valves are installed on the smoke exhaust pipes of the smoke collecting hood A and the smoke collecting hood B.
[0009] Further, pressure sensors are installed in both the smoke collecting hood A and the smoke collecting hood B, and the pressure sensors are signal-connected to the corresponding electric control valves.
[0010] Compared with the prior art, the utility model has the following beneficial effects: It realizes the full collection of flue gas from the copper discharging port, the copper discharging chute, and the copper melting room, and optimizes the on-site operation environment. Description of the Drawings
[0011] Figure 1 is a structural schematic diagram of the present utility model;
[0012] Figure 2 is the front view of the smoke collecting hood A of the present utility model;
[0013] In the figure: 1, melting furnace; 2, smoke collecting hood A; 21, hood door; 22, arc-shaped notch; 3, smoke collecting hood B; 4, chute cover plate; 5, copper discharging chute; 6, copper house; 7, smoke exhaust pipe. Specific embodiments
[0014] As Figure 1-2 shown, this embodiment is a flue gas collection device for copper discharging in front of the furnace, including a smoke collecting hood A2, a chute cover plate 4, a smoke collecting hood B3 and a copper house 6. The smoke collecting hood A2 is installed at the copper discharging port of the melting furnace 1. The chute cover plate 4 is installed at the top end of the copper discharging chute 5 and arranged along the full length of the copper discharging chute 5. The copper house 6 is a sealed room, which is arranged at the end of the copper discharging chute 5 and used to accommodate the copper ladle trolley. The smoke collecting hood B3 is installed at the top end of the copper house 6. Smoke exhaust pipes 7 are provided at the tops of the smoke collecting hood A2 and the smoke collecting hood B3, and the smoke exhaust pipes 7 are connected to a negative pressure exhaust system. Further, a split-type hood door 21 is provided on one side of the smoke collecting hood A2 facing the copper discharging chute 5. An arc-shaped notch 22 is provided at the lower end in the middle of the split-type hood door 21, and the arc-shaped notch 22 matches the copper discharging chute 5. The hood door 21 is opened when burning copper, and the hood door 21 is closed to collect smoke when discharging copper. Further, electric doors are provided on both sides of the copper house 6. Before the copper ladle trolley enters the copper house 6, the electric doors are opened, and after the copper ladle trolley arrives, the electric doors are closed, so as to form a sealed area in the copper house 6 to prevent the flue gas generated during copper discharging from overflowing. Further, two vertical rib plates are welded on the top surface of the chute cover plate 4, and lifting holes are provided on the vertical rib plates. Further, electric control valves are installed on the smoke exhaust pipes 7 of the smoke collecting hood A2 and the smoke collecting hood B3. Further, pressure sensors are installed in both the smoke collecting hood A2 and the smoke collecting hood B3, and the pressure sensors are signal-connected to the corresponding electric control valves. The pressure sensors detect the negative pressure in the smoke collecting hood in real time, and realize linkage control through signal connection with the electric control valves, so as to automatically control the negative pressure value in the smoke collecting hood, without wasting the energy consumption of the fan, and realizing the maximum flue gas collection efficiency.
[0015] When discharging copper, most of the flue gas overflowing from the copper discharging port is drawn away by the smoke collecting hood A2. The flue gas generated in the copper discharging chute 5 is sealed by the chute cover plate 4 and flows back into the smoke collecting hood A2 through the arc-shaped notch 22 of the smoke collecting hood A2 and is drawn away together. The flue gas generated when the copper is poured into the copper ladle is all drawn away by the smoke collecting hood B3, realizing no flue gas overflow during the whole process of copper discharging.
Claims
1. A flue gas collection device for discharging copper in front of the furnace, characterized in that: It includes a fume hood A, a chute cover plate, a fume hood B and a copper ladle room. The fume hood A is installed at the copper discharging opening of the smelting furnace. The chute cover plate is installed at the top end of the copper discharging chute and arranged along the full length of the copper discharging chute. The copper ladle room is a sealed room, which is arranged at the end of the copper discharging chute and used to accommodate the copper ladle trolley. The fume hood B is installed at the top of the copper ladle room. Smoke exhaust pipes are provided at the tops of the fume hood A and the fume hood B, and the smoke exhaust pipes are connected to a negative pressure exhaust system.
2. The flue gas collection device for copper discharging in front of the furnace according to claim 1, wherein: A split-type hood door is provided on one side of the fume hood A facing the copper discharging chute. An arc-shaped notch is provided at the lower end in the middle of the split-type hood door, and the arc-shaped notch matches the copper discharging chute.
3. The flue gas collection device for copper discharging in front of the furnace according to claim 1, characterized in that: Electric doors are provided on both sides of the copper ladle room.
4. A flue gas collection device for copper discharging in front of the furnace according to claim 1, characterized in that: Two vertical rib plates are welded on the top surface of the chute cover plate, and lifting holes are provided on the vertical rib plates.
5. The flue gas collection device for copper discharging in front of the furnace according to claim 1, characterized in that: Electric control valves are installed on the smoke exhaust pipes of the fume hood A and the fume hood B.
6. The flue gas collection device for copper discharging in front of the furnace according to claim 5, characterized in that: Pressure sensors are installed in both the fume hood A and the fume hood B, and the pressure sensors are signal-connected to the corresponding electric control valves.