Copper smelting flue gas dust removal device

Abstract

The utility model relates to the technical field of copper smelting smoke dust treatment, in particular to a copper smelting smoke dust removal device. A fixing plate is arranged in the middle tower body, and the fixing plate is arranged at the lower part of the middle tower body; a plurality of dust removal cylinders are further arranged in the middle tower body, are all arranged above the fixing plate, are vertically arranged and are connected with a rotating mechanism on the inner wall of the middle tower body; a spraying pipeline is arranged above the fixed plate and each dust removal cylinder; the spraying pipelines are connected with the spraying main pipeline; an air inlet is formed in one side of the middle tower body and is positioned below the fixed plate. According to the utility model, the fixed plate and the plurality of dust removal cylinders are arranged in the middle tower body, and the circulating spraying system is combined, so that efficient dust removal of flue gas is realized. The dust removal cylinder rotates to a horizontal state as required, so that the contact area and time of the flue gas and the dust removal medium are increased, and the dust removal efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of copper smelting flue gas treatment technology, specifically to a copper smelting flue gas dust removal device. Background Technology

[0002] The copper smelting process generates a large amount of dust-laden flue gas. This flue gas not only contains substances harmful to the environment but may also carry valuable recyclable components. Therefore, effective dust removal treatment of copper smelting flue gas is not only a necessary requirement for environmental protection but also an important measure for the efficient utilization of resources.

[0003] Traditional dust removal devices for copper smelting flue gas mostly employ bag filters or electrostatic precipitators. These devices often suffer from low dust removal efficiency, high operating and maintenance costs, and susceptibility to clogging when handling high-concentration, high-temperature, high-humidity, and highly viscous flue gas. Circulating spray systems, as a wet dust removal technology, have attracted considerable attention due to their simple structure, convenient operation, high dust removal efficiency, and adaptability to various flue gas conditions. In a circulating spray system, dust-laden flue gas comes into full contact with the spray water mist as it passes through the spray tower. The dust particles in the flue gas are moistened by the water mist and agglomerate into larger particles, which then fall into the circulation tank under gravity, achieving separation of flue gas and dust particles. The water in the circulation tank, after sedimentation and filtration, can be pumped back for recycling, greatly improving water resource utilization. However, traditional circulating spray systems still have some shortcomings when treating copper smelting flue gas. For example, due to the varying sizes and densities of dust particles in the flue gas, a single spraying method is insufficient to effectively capture all dust particles. Utility Model Content

[0004] In view of the problems of low dust removal efficiency and difficulty in collecting dust particles of different densities and sizes in the existing technology, this utility model provides a dust removal device for copper smelting flue gas.

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

[0006] A dust removal device for copper smelting flue gas includes a circulating spray system and a tower body;

[0007] The circulating spray system includes a circulating tank, a spray pump, and a main spray pipe; the top of the circulating tank is provided with a first opening, the circulating tank is connected to the input end of the spray pump, and the main spray pipe is connected to the output end of the spray pump;

[0008] The tower body includes a middle tower body, a lower tower body, and an upper tower body; the middle tower body is connected to the lower tower body and the upper tower body respectively; the bottom of the lower tower body is provided with a second opening; the second opening is connected to the first opening at the top of the circulation tank; the top of the upper tower body is provided with an air outlet; a fixed plate is provided inside the middle tower body, and the fixed plate is located at the lower part of the middle tower body; multiple dust collectors are also provided inside the middle tower body, and the multiple dust collectors are all located above the fixed plate. The multiple dust collectors are arranged vertically, and the dust collectors are connected to a rotating mechanism on the inner wall of the middle tower body; a spray pipe is provided above the fixed plate and each dust collector, and the spray pipe is connected to the main spray pipe; an air inlet is provided on one side of the middle tower body, and the air inlet is located below the fixed plate.

[0009] Furthermore, the circulation tank is provided with a water replenishment hole and a level gauge, the air inlet is provided with a first pressure transmitter and a first dust meter, and the air outlet is provided with a second pressure transmitter and a second dust meter.

[0010] Furthermore, a necking weld is made between the middle tower body and the lower tower body, and a necking weld is made between the middle tower body and the upper tower body.

[0011] Furthermore, the fixing plate is provided with uniformly spaced circular holes.

[0012] Furthermore, the dust collector is a cylinder, with its bottom, arc-shaped side, and top surfaces all connected, and each surface having uniformly spaced circular holes; the top surface of the dust collector has a third opening, and a top cover is provided on the third opening, which is fixed to the third opening by bolts; a fixed shaft is provided on the arc-shaped side surface of the dust collector, and the fixed shaft is connected to the rotating mechanism.

[0013] Furthermore, both the fixed plate and the dust collector are equipped with packing material, which includes Haier rings.

[0014] Furthermore, the rotating mechanism is connected to a motor.

[0015] Furthermore, the spray pipe is equipped with a spray head and a solenoid valve.

[0016] Furthermore, the solenoid valve, the motor, the first pressure transmitter, the second pressure transmitter, the first dust meter, and the second dust meter are all connected to the DCS system.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention provides a dust removal device for copper smelting flue gas. By installing a fixed plate and multiple dust collection cylinders within the central tower body, combined with a circulating spray system, highly efficient dust removal of the flue gas is achieved. The dust collection cylinders rotate to a horizontal position as needed, increasing the contact area and time between the flue gas and the dust collection medium, thereby improving dust removal efficiency. The device is equipped with sensors such as pressure transmitters and dust meters, enabling real-time monitoring of the resistance inside the central tower body and the dust content of the gas at the inlet and outlet. Based on the monitoring data, intelligent control of solenoid valves and motors allows for flexible handling of flue gas with different dust contents, ensuring the stability and reliability of the dust removal effect. The spray pump operates continuously, with solenoid valve M4 in a normally open state, ensuring the continuous operation of the circulating spray system and effectively reducing energy consumption. Simultaneously, precise control of the rotation state of the dust collection cylinders and the spray volume avoids unnecessary resource waste. Attached Figure Description

[0019] The embodiments of this utility model will be further described below with reference to the accompanying drawings, wherein:

[0020] Figure 1 A schematic diagram of an embodiment of a copper smelting flue gas dust removal device is shown;

[0021] Figure 2 A schematic diagram of an embodiment of the dust collector cylinder is shown;

[0022] Attached diagram labels: 1-Circulation tank, 2-Spray pump, 3-Main spray pipe, 4-Middle tower body, 5-Lower tower body, 6-Upper tower body, 7-Fixed plate, 8-Dust collector, 9-Spray pipe, 10-Air inlet, 11-Top cover, 12-Fixed shaft. Detailed Implementation

[0023] 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 merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0024] Reference Appendix Figure 1 A dust removal device for copper smelting flue gas includes a circulating spray system and a tower body;

[0025] The circulating spray system includes a circulating tank 1, a spray pump 2, and a main spray pipe 3; the top of the circulating tank 1 is provided with a first opening, the circulating tank 1 is connected to the input end of the spray pump 2, and the main spray pipe 3 is connected to the output end of the spray pump 2.

[0026] The tower body includes a middle tower body 4, a lower tower body 5, and an upper tower body 6; the middle tower body 4 is connected to the lower tower body 5 and the upper tower body 6 respectively; the lower tower body 5 has a second opening at its bottom; the second opening is connected to the first opening at the top of the circulation tank 1; the upper tower body 6 has an air outlet at its top; the middle tower body 4 has a fixing plate 7 inside, which is located at the lower part of the middle tower body 4; the middle tower body 4 also has multiple dust collectors 8 inside, which are all located above the fixing plate 7 and are arranged vertically. The dust collectors 8 are connected to a rotating mechanism on the inner wall of the middle tower body 4; a spray pipe 9 is provided above the fixing plate 7 and each dust collector 8, and the spray pipe 9 is connected to the main spray pipe 3; an air inlet 10 is provided on one side of the middle tower body 4, which is located below the fixing plate 7.

[0027] In one embodiment of this utility model, the circulation tank 1 is provided with a water replenishment hole and a level gauge, the air inlet 10 is provided with a first pressure transmitter and a first dust meter, and the air outlet is provided with a second pressure transmitter and a second dust meter.

[0028] In one embodiment of this utility model, a necking weld is made between the middle tower body 4 and the lower tower body 5, and a necking weld is made between the middle tower body 4 and the upper tower body 6.

[0029] In one embodiment of this utility model, the fixing plate 7 is provided with uniform circular holes.

[0030] Reference Appendix Figure 2 In one embodiment of this utility model, the dust collector 8 is a cylinder, and the bottom surface, arc-shaped side surface, and top surface of the dust collector 8 are all connected, and each surface is provided with uniform circular holes; the top surface of the dust collector 8 is provided with a third opening, and a top cover 11 is provided on the third opening, and the top cover 11 is fixed to the third opening by bolts; a fixed shaft 12 is provided on the arc-shaped side surface of the dust collector 8, and the fixed shaft 12 is connected to a rotating mechanism; the dust collector 8 can rotate 90° clockwise and is in a vertical state when not in operation.

[0031] In one embodiment of this utility model, both the fixing plate 7 and the dust collector 8 are provided with packing material, which includes Haier rings.

[0032] In one embodiment of this utility model, the rotating mechanism is connected to a motor.

[0033] In one embodiment of this utility model, a nozzle is provided on the spray pipe 9, and a solenoid valve is provided on the spray pipe 9.

[0034] In one embodiment of this utility model, the solenoid valve, motor, first pressure transmitter, second pressure transmitter, first dust meter and second dust meter are all connected to the DCS system.

[0035] Reference Appendix Figure 1, taking a copper smelting flue gas dust removal device with two dust removal cylinders 8 as an example, during use, by calculating the pressure difference between pressure transmitter P1 and pressure transmitter P2, the resistance situation inside the middle tower body 4 is monitored; the first dust detector Z1 and the second dust detector Z2 continuously monitor the dust content of the gas at the inlet and outlet. The spray pump 2 operates for a long time, and the solenoid valve M4 is in the normally open state; when the feedback value of Z2 is less than A, only the solenoid valve M4 is opened; when A < Z2 < B, the solenoid valve M3 is opened, and then the motor M10 is turned on to rotate the dust removal cylinder 8 connected to the motor M10 to the horizontal state; when B < Z2 < C, the solenoid valve M2 is opened, and then the motor M9 is turned on to rotate the dust removal cylinder 8 connected to the motor M9 to the horizontal state; when the feedback value of the first dust detector Z1 is greater than the set value F, the solenoid valves M2 and M3 are opened, and then the motors M9 and M10 are turned on to rotate the dust removal cylinders 8 connected to M9 and M10 to the horizontal state respectively to ensure the dust removal effect.

[0036] The utility model provides a copper smelting flue gas dust removal device. By arranging a fixing plate and multiple dust removal cylinders inside the middle tower body and combining with a circulating spray system, efficient dust removal of the flue gas is achieved. The dust removal cylinders are rotated to the horizontal state as needed, increasing the contact area and time between the flue gas and the dust removal medium, thereby improving the dust removal efficiency. The device is provided with sensors such as pressure transmitters and dust detectors, which can continuously monitor the resistance situation inside the middle tower body and the dust content of the gas at the inlet and outlet. According to the monitored data, through the intelligent control of solenoid valves and motors, flexible treatment of flue gas with different dust contents is achieved, ensuring the stability and reliability of the dust removal effect. The spray pump operates for a long time, and the solenoid valve M4 is in the normally open state, ensuring the continuous operation of the circulating spray system and effectively reducing the energy consumption. At the same time, by precisely controlling the rotation state of the dust removal cylinders and the spray volume, unnecessary resource waste is avoided.

[0037] Some exemplary embodiments of the utility model are described above. It can be understood that the above embodiments are only used to explain the utility model and do not constitute a limitation on the protection scope of the utility model. The features in these embodiments can be recombined in a suitable manner, and the solutions obtained therefrom are still within the protection scope required by the utility model. Based on the above embodiments, all other embodiments obtained by those skilled in the art without creative efforts, that is, all modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this application, fall within the protection scope required by the utility model.

Claims

1. A copper smelting off-gas dedusting device, characterized in that, The circulating spray system and the tower body are included; The circulating spray system includes a circulating tank (1), a spray pump (2) and a spray main pipeline (3); the top of the circulating tank (1) is provided with a first opening, the circulating tank (1) is connected with the input end of the spray pump (2), and the spray main pipeline (3) is connected with the output end of the spray pump (2); The tower body includes a middle tower body (4), a lower tower body (5) and an upper tower body (6); the middle tower body (4) is connected with the lower tower body (5) and the upper tower body (6) respectively; the bottom of the lower tower body (5) is provided with a second opening; the second opening is connected with the first opening at the top of the circulating tank (1); the top of the upper tower body (6) is provided with a gas outlet; the inside of the middle tower body (4) is provided with a fixed plate (7), and the fixed plate (7) is arranged at the lower part of the middle tower body (4); a plurality of dust removal cylinders (8) are further arranged in the inside of the middle tower body (4), the plurality of dust removal cylinders (8) are all arranged above the fixed plate (7), the plurality of dust removal cylinders (8) are vertically arranged, and the dust removal cylinders (8) are connected with rotating mechanisms on the inner wall of the middle tower body (4); the fixed plate (7) and the upper part of each dust removal cylinder (8) are both provided with spray pipelines (9), the spray pipelines (9) are connected with the spray main pipeline (3), and one side of the middle tower body (4) is provided with an air inlet (10), and the air inlet (10) is located below the fixed plate (7).

2. A copper smelting flue dust removal device according to claim 1, characterized in that A water supplement hole and a liquid level meter are arranged on the circulating tank (1), a first pressure transmitter and a first dust instrument are arranged at the air inlet (10), and a second pressure transmitter and a second dust instrument are arranged at the gas outlet.

3. A copper smelting flue dust removal device according to claim 1, characterized in that Necking welding is performed between the middle tower body (4) and the lower tower body (5), and necking welding is performed between the middle tower body (4) and the upper tower body (6).

4. A copper smelting flue dust removal device according to claim 2, characterized in that Uniform circular holes are arranged on the fixed plate (7).

5. A copper smelting flue dust removal device according to claim 2, characterized in that The dust removal cylinder (8) is a cylinder, the bottom surface, the arc-shaped side surface and the top surface of the dust removal cylinder (8) are all connected, and uniform circular holes are arranged on each surface; a third opening is arranged on the top surface of the dust removal cylinder (8), a top cover (11) is arranged on the third opening, and the top cover (11) is fixed on the third opening through bolts; a fixed shaft (12) is arranged on the arc-shaped side surface of the dust removal cylinder (8), and the fixed shaft (12) is connected with the rotating mechanism.

6. A copper smelting off-gas dedusting device according to claim 4 or 5, characterized in that, Fillers are arranged on the fixed plate (7) and in the dust removal cylinder (8), and the fillers include a Haier ring.

7. A copper smelting flue gas dedusting device according to claim 5, characterized in that, The rotating mechanism is connected with a motor.

8. A copper smelting flue gas dedusting device according to claim 7, characterized in that, Spray heads are arranged on the spray pipelines (9), and electromagnetic valves are arranged on the spray pipelines (9).

9. A copper smelting flue gas dedusting device according to claim 8, characterized in that, The electromagnetic valves, the motor, the first pressure transmitter, the second pressure transmitter, the first dust instrument and the second dust instrument are all connected with a DCS system.

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