A copper smelting system

Abstract

The utility model relates to copper smelting technical field, concretely relates to a copper smelting system, the feed chute is connected the discharge port chute, first discharge chute and second discharge chute are connected one respectively the detection device, two detection devices are connected the first feed end and the second feed end of Y type chute respectively, and the discharge end of Y type chute is connected the feed inlet chute, and the flue gas analyzer is equipped at the flue gas outlet of the converter, and the air inlet of converter is connected the air supply system, and the turnover chute, detection device, flue gas analyzer and air supply system all are connected the control system, the utility model can accurately measure white ice copper quality, makes control system preliminary adjustment converter air volume according to the discharge capacity, and flue gas analyzer detects sulfur dioxide and residual oxygen content of flue gas outlet in real time, and control system adjusts air volume according to the data again, realizes the accurate dynamic adjustment of converter oxygen consumption.

Description

Technical Field

[0001] This utility model relates to the field of copper smelting technology, and specifically to a copper smelting system. Background Technology

[0002] In the pyrometallurgical process of copper, the white matte produced in the smelting furnace needs to be transported to the blowing furnace via a chute for further blowing to remove impurities such as sulfur and iron, ultimately yielding crude copper. The amount of white matte entering the blowing furnace is a key parameter affecting the blowing effect. The blowing process requires precise control of the air volume, air pressure, and oxygen concentration of the air supply system based on the amount of white matte to ensure sufficient and stable gas-liquid two-phase flow reaction within the furnace, thereby guaranteeing that the grade and temperature of the crude copper meet the requirements of the blowing process standards.

[0003] However, in existing technologies, the conveying of white matte from the smelting furnace to the blowing furnace mainly relies on fixed chutes or simple tilting chutes for flow guidance, lacking precise metering methods for the conveyed volume. On the one hand, because white matte is in a molten state and at a high temperature, traditional metering equipment is difficult to operate stably in high-temperature and highly corrosive environments, and the flow state of the material in the chute is greatly affected by changes in temperature and viscosity, easily leading to wall adhesion, blockage, and other issues, resulting in metering deviations. On the other hand, in the structural design of existing chute devices, the tilting or guiding process lacks coordination with the metering device, and the conveyed volume of white matte cannot be fed back to the control system in real time and accurately, making the parameter adjustment of the air supply system rely on empirical values ​​or delayed detection data. This results in the reaction within the smelting furnace not operating at its optimal state. Specifically: when the white matte feed rate is too high and the air supply is insufficient, impurities are not thoroughly removed, leading to a decrease in the grade of crude copper and a risk of foamy slag eruption. Conversely, when the feed rate is too low and the air supply is too high, copper elements are over-oxidized, generating copper oxide that enters the smelting slag, reducing the direct copper metal recovery rate and increasing the production cost of copper pyrometallurgical processes. Furthermore, inaccurate measurement of the white matte feed rate makes it difficult to control the stability of the smelting process, resulting in frequent parameter fluctuations. This also shortens the furnace lifespan, increases production and maintenance costs, and raises safety hazards. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a copper smelting system.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A copper smelting system includes a smelting furnace 1, a sluice box assembly, a blowing furnace 2, an air supply system, and a control system. The smelting furnace 1 is provided with a discharge sluice box 3, and the blowing furnace 2 is provided with a feed sluice box 4. The sluice box assembly is located between the discharge sluice box 3 and the feed sluice box 4. The sluice box assembly includes a tilting sluice box 5, a weighing device 6, and a Y-shaped sluice box 7. The tilting sluice box 5 includes a feed sluice box, a first discharge sluice box, and a second discharge sluice box. The Y-shaped sluice box 7 includes a first feed end, a second feed end, and a discharge end. The discharge chute 3 is connected to the discharge port chute. The first discharge chute and the second discharge chute are each connected to one of the weighing devices 6. The two weighing devices 6 are respectively connected to the first feed end and the second feed end of the Y-shaped chute 7. The discharge end of the Y-shaped chute 7 is connected to the feed port chute 4. A flue gas analyzer is provided at the flue gas outlet of the blowing furnace 2. The air inlet of the blowing furnace 2 is connected to the air supply system. The tilting chute 5, the weighing device 6, the flue gas analyzer and the air supply system are all connected to the control system.

[0007] Furthermore, the feed chute includes a first end and a second end, both of which are closed structures. The first end of the feed chute is connected to the discharge chute, and the second end of the feed chute is provided with the first discharge chute and the second discharge chute. The first discharge chute and the second discharge chute are symmetrically arranged on both sides of the feed chute.

[0008] Furthermore, the weighing device includes a weighing chute, a weighing sensor, and an angle adjustment device. The weighing sensor and the angle adjustment device are located at the bottom of the weighing chute. The weighing sensor is connected to the control system and is a resistance strain gauge weighing sensor.

[0009] Furthermore, the air supply system includes a blower, an air duct, a flow sensor, and an air volume regulating valve. The blower is connected to the air inlet of the smelting furnace through the air duct. The flow sensor and the air volume regulating valve are installed on the air duct, and the control signals of the flow sensor and the air volume regulating valve are connected to the control system.

[0010] Furthermore, the chute device also includes a chute support, on which the tilting chute, the weighing device, and the Y-shaped chute are all mounted. The bottom of the chute support is provided with adjustable support feet.

[0011] Furthermore, the flue gas analyzer is an infrared analyzer or a magnetic pressure gas analyzer.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention provides a copper smelting system. Weighing devices are installed between the two discharge chutes of the tilting chute and the Y-shaped chute. The rotation of the tilting chute switches the discharge state of the two discharge chutes, allowing one weighing device to be in a loading state while the other is in a discharging state. This enables real-time and accurate measurement of the mass of white matte entering the smelting furnace, while simultaneously ensuring a stable supply of white matte into the furnace. The control system receives the white matte mass data from the weighing devices and, combined with flue gas composition information detected by a flue gas analyzer, dynamically adjusts the parameters of the air supply system to optimize the smelting reaction. This ensures the grade and purity of the smelting product, reduces copper content in the slag, reduces slag volume and energy waste, extends the furnace's lifespan, and ultimately improves production efficiency and reduces the cost per ton of copper smelting. Attached Figure Description

[0014] The embodiments of this utility model will be further described below with reference to the accompanying drawings, wherein:

[0015] Figure 1 A schematic diagram of an embodiment of a copper smelting system is shown;

[0016] Figure 2 A top view of an embodiment of a copper smelting system is shown;

[0017] Attached diagram labels: 1-Smelting furnace, 2-Blowing furnace, 3-Discharge chute, 4-Inlet chute, 5-Tilting chute, 6-Weighing device, 7-Y-type chute. Detailed Implementation

[0018] 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 specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model.

[0019] Reference Appendix Figure 1-2A copper smelting system includes a smelting furnace 1, a sluice box assembly, a blowing furnace 2, an air supply system, and a control system. The smelting furnace 1 is provided with a discharge sluice box 3, and the blowing furnace 2 is provided with a feed sluice box 4. A sluice box assembly is provided between the discharge sluice box 3 and the feed sluice box 4. The sluice box assembly includes a tilting sluice box 5, a weighing device 6, and a Y-shaped sluice box 7. The tilting sluice box 5 includes a feed sluice box, a first discharge sluice box, and a second discharge sluice box. The Y-shaped sluice box 7 includes a first feed end and a second feed end. The feed chute is connected to the discharge chute 3. The first discharge chute and the second discharge chute are respectively connected to a weighing device 6. The two weighing devices 6 are respectively connected to the first feed end and the second feed end of the Y-shaped chute 7. The discharge end of the Y-shaped chute 7 is connected to the feed chute 4. A flue gas analyzer is installed at the flue gas outlet of the blowing furnace 2. The air inlet of the blowing furnace 2 is connected to the air supply system. The tilting chute 5, the weighing device 6, the flue gas analyzer and the air supply system are all connected to the control system.

[0020] In one embodiment of the present invention, the feed chute includes a first end and a second end, both of which are closed structures. The first end of the feed chute is connected to the discharge chute 3, and the second end of the feed chute is provided with a first discharge chute and a second discharge chute. The first discharge chute and the second discharge chute are symmetrically arranged on both sides of the feed chute.

[0021] In one embodiment of this utility model, the weighing device 6 includes a weighing chute, a weighing sensor, and an angle adjustment device. The weighing sensor and the angle adjustment device are located at the bottom of the weighing chute. The weighing sensor is connected to the control system and is a resistance strain gauge weighing sensor. In use, the weighing chute has two states: a filling state and a discharging state. When the weighing chute is in the filling state, the chute is horizontal, and white matte falls into the weighing chute through the first or second discharge chute. The mass of the white matte in the weighing chute is measured by the weighing sensor. If the discharge conditions of the weighing chute are met, the angle adjustment device adjusts the angle of the weighing chute so that the weighing chute has a certain tilt angle, so that the white matte can be discharged. At the same time, the flipping chute deflects towards the other end of the weighing chute, and the weighing chute is in the filling state. The flipping chute and the weighing chute work in a cyclical manner.

[0022] In one embodiment of this utility model, the air supply system includes a blower, an air duct, a flow sensor, and an air volume regulating valve. The blower is connected to the air inlet of the blowing furnace 2 through the air duct. The flow sensor and the air volume regulating valve are installed on the air duct and are connected to the control system.

[0023] In one embodiment of the present invention, the chute device further includes a chute support, and the tilting chute 5, the weighing device 6 and the Y-shaped chute 7 are all mounted on the chute support. The bottom of the chute support is provided with a support foot that can adjust the height.

[0024] In one embodiment of this utility model, the flue gas analyzer is an infrared analyzer or a magnetic pressure gas analyzer.

[0025] A production method for a copper smelting system includes the following steps:

[0026] S1. The white matte product of the smelting furnace flows into the feed chute of the tilting chute 5 through the discharge chute 3. The white matte flows into the weighing device 6 through the first or second discharge chute of the tilting chute 5.

[0027] S2. The weighing sensor in the weighing device 6 measures the mass of white matte copper in the weighing chute and transmits the data to the control system. The control system calculates and adjusts the air volume regulating valve to initially adjust the air volume entering the blowing furnace 2.

[0028] S3, the white matte copper in the weighing device 6 flows into the Y-shaped chute 7 and then into the blowing furnace 2 through the feed chute 4 for smelting;

[0029] S4. The flue gas analyzer detects and analyzes the sulfur dioxide and residual oxygen content at the flue gas outlet of the blowing furnace 2, and transmits the data to the control system. The control system adjusts the air volume regulating valve again according to the sulfur dioxide and residual oxygen content, and adjusts the air volume introduced into the blowing furnace 2 to achieve control of the product level of the blowing furnace.

[0030] This invention provides a copper smelting system. Weighing devices are installed between the two discharge chutes of the tilting chute and the Y-shaped chute. The rotation of the tilting chute switches the discharge state of the two discharge chutes, allowing one weighing device to be in a loading state while the other is in a discharging state. This enables real-time and accurate measurement of the mass of white matte entering the smelting furnace, while simultaneously ensuring a stable supply of white matte into the furnace. The control system receives real-time white matte mass data from the weighing devices and, combined with flue gas composition information from the smelting furnace analyzer, dynamically adjusts the parameters of the air supply system to optimize the smelting reaction. This ensures the grade and purity of the smelting product, reduces copper content in the slag, reduces slag volume and energy waste, extends the furnace's lifespan, improves production efficiency, and lowers the cost per ton of copper smelting.

[0031] The foregoing description describes some exemplary embodiments of this utility model. It is understood that the above embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model. The features in these embodiments are recombined in a suitable manner, and the resulting solutions are still within the scope of protection claimed by this utility model. Based on the above embodiments, all other embodiments obtained by those skilled in the art without inventive effort, that is, all modifications, equivalent substitutions, and improvements made within the spirit and principles of this application, fall within the scope of protection claimed by this utility model.

Claims

1. A copper smelting system, characterized in that, The system includes a smelting furnace (1), a chute device, a blowing furnace (2), an air supply system, and a control system; the smelting furnace (1) is provided with a discharge chute (3), the blowing furnace (2) is provided with a feed chute (4), and the chute device is provided between the discharge chute (3) and the feed chute (4); the chute device includes a tilting chute (5), a weighing device (6), and a Y-shaped chute (7); the tilting chute (5) includes a feed chute, a first discharge chute, and a second discharge chute; the Y-shaped chute (7) includes a first feed end, a second feed end, and a discharge end; the feed chute... The discharge chute (3) is connected to the discharge port chute. The first discharge chute and the second discharge chute are respectively connected to one of the weighing devices (6). The two weighing devices (6) are respectively connected to the first feed end and the second feed end of the Y-shaped chute (7). The discharge end of the Y-shaped chute (7) is connected to the feed port chute (4). A flue gas analyzer is provided at the flue gas outlet of the blowing furnace (2). The air inlet of the blowing furnace (2) is connected to the air supply system. The tilting chute (5), the weighing device (6), the flue gas analyzer and the air supply system are all connected to the control system.

2. A copper smelting system according to claim 1, characterized in that The feed chute includes a first end and a second end, both of which are closed structures. The first end of the feed chute is connected to the discharge chute (3), and the second end of the feed chute is provided with the first discharge chute and the second discharge chute. The first discharge chute and the second discharge chute are symmetrically arranged on both sides of the feed chute.

3. A copper smelting system according to claim 1, characterized in that The weighing device (6) includes a weighing chute, a weighing sensor and an angle adjustment device. The weighing sensor and the angle adjustment device are provided at the bottom of the weighing chute. The weighing sensor is connected to the control system. The weighing sensor is a resistance strain gauge weighing sensor.

4. A copper smelting system according to claim 1, characterized in that The air supply system includes a blower, an air duct, a flow sensor, and an air volume regulating valve. The blower is connected to the air inlet of the blowing furnace (2) through the air duct. The flow sensor and the air volume regulating valve are installed on the air duct and are connected to the control system.

5. A copper smelting system according to claim 1, characterized in that, The chute device also includes a chute support. The tilting chute (5), the weighing device (6) and the Y-shaped chute (7) are all mounted on the chute support. The bottom of the chute support is provided with adjustable support feet.

6. A copper smelting system according to claim 1, characterized in that, The flue gas analyzer is either an infrared analyzer or a magnetic pressure gas analyzer.

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