Diluted sulfuric acid flushing electric demisting equipment for copper smelting acid making

Abstract

The utility model relates to the technical field of cleaning of electric demisting equipment for making acid from copper smelting flue gas, and discloses dilute sulphuric acid flushing electric demisting equipment for making acid from copper smelting, which comprises a primary dynamic wave, a surface filter; an electric demisting equipment body; an underflow tank; a filter press; the waste collecting device comprises a first moving assembly, a second moving assembly and a plurality of sets of clamps. Dilute sulfuric acid is sequentially purified by a surface filter, temporarily stored in a clear liquid tank and flushed by an electric demisting equipment body, waste liquid enters an underflow tank to be stirred and homogenized and then is separated by a filter press, a filter element returns to primary dynamic waves through a pump to be reused, and new dilute acid needs are often generated in a traditional water flushing electric mist mode, so that extra cost is caused. The cleaning method provided by the utility model aims to effectively reduce the cost of new dilute acid generated due to water washing of the electric mist, and the cleaning cost in the process of making acid from the copper smelting flue gas is reduced on the whole by reasonably utilizing the dilute acid of the process system, optimizing the cleaning process and reducing the dependence on additional dilute acid.

Description

Technical Field

[0001] This utility model relates to the field of cleaning technology for electrostatic precipitators for acid production from copper smelting flue gas, and particularly to an electrostatic precipitator for flushing dilute sulfuric acid in copper smelting acid production. Background Technology

[0002] In actual production and operation, electrostatic precipitators face many severe challenges. First, the composition of copper smelting flue gas is complex, carrying not only sulfur dioxide but also a large amount of metal oxides, salts, and various impurities. During the operation of the electrostatic precipitator, these substances gradually deposit on the electrodes and the inner wall of the equipment. The covering layer formed by impurities on the electrode surface acts as an insulating layer, hindering current conduction and significantly reducing the corona discharge effect.

[0003] To address the issue of impurity deposition in electrostatic precipitators, traditional mechanical cleaning methods, such as using brushes and scrapers, can remove some visible impurities to a certain extent, but are ineffective at removing stubborn impurities tightly adhered to the electrode surface and those within the complex internal structure of the equipment. Water rinsing is also a common cleaning method, but water has limited dissolving power for metal oxides and some salt impurities. Water rinsing alone can only remove some water-soluble impurities; it is almost ineffective at removing most of the insoluble impurities deposited in electrostatic precipitators, such as copper oxides and arsenates. Furthermore, complex wastewater treatment is required after cleaning to prevent environmental pollution. Improper wastewater treatment can lead to long-term negative impacts on soil, water sources, and other ecological environments due to the heavy metal ions and harmful chemicals it contains.

[0004] In summary, existing cleaning methods generally suffer from drawbacks such as unsatisfactory cleaning results, easy damage to equipment, high maintenance costs, low efficiency, and significant environmental risks.

[0005] Therefore, this application proposes an electrostatic precipitator for rinsing dilute sulfuric acid during copper smelting. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an electrostatic precipitator for dilute sulfuric acid rinsing in copper smelting, which solves the problems mentioned in the background section.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0008] An electrostatic precipitator for rinsing dilute sulfuric acid in copper smelting includes: a primary power wave for adjusting the concentration of dilute sulfuric acid; a surface filter for filtering the dilute sulfuric acid, the surface filter chamber containing a filter membrane; a clear liquid tank for collecting the filtered dilute sulfuric acid solution; an electrostatic precipitator body disposed on one side of the clear liquid tank, through which the dilute sulfuric acid is rinsed; an underflow tank for collecting waste liquid containing impurities after rinsing, the underflow tank chamber containing a stirring rod; and a filter press. The filter press is used to filter waste liquid. A waste collection device for collecting filter cake is installed below the filter press. The primary power wave and the surface filter, the clear liquid tank and the electrostatic precipitator body, the underflow tank and the filter press, and the filter press and the primary power wave are all connected by conveying pipes and pumps, and dilute sulfuric acid is recycled. The waste collection device includes a first moving component, a second moving component and multiple sets of clamps. The first moving component includes a pushing unit, a first guide rod and a first side plate. The second moving component includes a second guide rod and a second side plate. Connecting plates are movably connected to both sides of the second side plate.

[0009] According to the copper smelting acid production dilute sulfuric acid rinsing electrostatic precipitator, a drive motor is fixedly installed at the top of the underflow tank, and the output shaft of the drive motor is fixedly connected to the stirring rod.

[0010] According to the copper smelting acid production dilute sulfuric acid flushing electrostatic precipitator, a scraper device for scraping material is provided above the filter press, and the waste collection device also includes a first support column, a second support column and a rectangular frame. The rectangular frame is fixedly installed on the top of the first support column and the second support column, and the rectangular frame is located below the filter press.

[0011] According to the copper smelting acid production dilute sulfuric acid flushing electrostatic precipitator, the first guide rod is in two sets, and the two ends of the two sets of first guide rods are fixedly connected to the first side plate. The first side plate is fixedly installed with hanging ears on both sides. The second support column is fixedly installed with a first fixed pile on the side near the first guide rod, and the first guide rod moves through the corresponding first fixed pile.

[0012] According to the copper smelting acid production dilute sulfuric acid flushing electrostatic precipitator, the pushing component includes a rack fixedly installed between two sets of first side plates and a side plate fixedly installed on one side of two sets of second support columns. A rotating shaft is movably installed between the two sets of side plates. The rotating shaft movably passes through a gear, and the gear movably meshes with the rack. A servo motor is fixedly installed on one side of the side plate. The output shaft of the servo motor movably passes through the side plate and is fixedly connected to the rotating shaft.

[0013] According to the copper smelting acid production dilute sulfuric acid flushing electrostatic precipitator, the second guide rod is in two sets. The ends of the two sets of second guide rods that are far apart from each other are fixedly connected to the second side plate. The sides of the second side plate and the first side plate that are close to each other are fixedly installed with clamps. The side of the first support column that is close to the second guide rod is fixedly installed with a second fixing pile. The second guide rod moves through the corresponding second fixing pile.

[0014] According to the copper smelting acid production dilute sulfuric acid flushing electrostatic precipitator, the end of the connecting plate away from the second side plate is provided with multiple sets of locking holes, and the hanging ears can be movably locked with the corresponding locking holes.

[0015] This utility model provides an electrostatic precipitator for rinsing and precipitating dilute sulfuric acid produced in copper smelting, which has the following beneficial effects:

[0016] (1) By setting a primary power wave to adjust the concentration of dilute sulfuric acid, the dilute sulfuric acid is purified by a surface filter, temporarily stored in a clear liquid tank, and rinsed by the main body of the electrostatic precipitator. The waste liquid enters the underflow tank for stirring and homogenization, and is then separated by a filter press. The filter element is pumped back to the primary power wave for reuse. Traditional water rinsing electrostatic precipitator methods often generate new dilute acid demand, resulting in additional costs. The cleaning method provided in this application aims to effectively reduce the new dilute acid cost generated by water rinsing electrostatic precipitator. By making reasonable use of the dilute acid in the process system, optimizing the cleaning process, reducing dependence on additional dilute acid, and reducing the overall cleaning cost in the copper smelting flue gas acid production process, the economic benefits and market competitiveness of enterprises can be improved.

[0017] (2) Two sets of second guide rods and second side plates are set to form a rectangular frame. Connecting plates are movably installed on both sides of the second side plate. Multiple sets of locking holes are opened at one end of the connecting plate. The hanging ears can be movably locked with the corresponding locking holes, so that the first side plate moves and pushes the second side plate to move synchronously. By fixing and installing clamps on the side of the second side plate and the first side plate that are close to each other, multiple sets of clamps hold the biochemical bag together. By setting a pushing unit, the biochemical bag moves as a whole with the second side plate and the first side plate, and the fallen filter cake is collected. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the rinsing process of an electrostatic precipitator for rinsing dilute sulfuric acid in copper smelting according to this utility model.

[0019] Figure 2 This is a schematic diagram showing the positional relationship between the filter press, scraper device, and waste collection device in a copper smelting acid production dilute sulfuric acid washing electrostatic precipitator according to the present invention.

[0020] Figure 3 This is a schematic diagram showing the positional relationship between the rectangular frame and the first and second rectangular frames of the electrostatic precipitator for rinsing dilute sulfuric acid in copper smelting according to this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of the first moving component of an electrostatic precipitator for rinsing dilute sulfuric acid in copper smelting according to the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of the second moving component of an electrostatic precipitator for rinsing dilute sulfuric acid in copper smelting.

[0023] Legend:

[0024] 10. Primary power wave; 11. Surface filter; 12. Clear liquid tank; 13. Electrostatic precipitator body; 14. Underflow tank; 15. Filter press; 16. Scraper device; 17. Waste collection device; 18. Rectangular frame; 19. First support column; 20. Second support column; 21. Second moving component; 22. First moving component; 23. Clamp; 24. First guide rod; 25. First side plate; 26. Hanging lug; 27. Rack; 28. Gear; 29. ​​Side plate; 30. Servo motor; 31. First fixing post; 32. Second guide rod; 33. Second side plate; 34. Connecting plate; 35. Engaging hole; 36. Second fixing post. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] Please see Figure 1-5As shown, this utility model is an electrostatic precipitator for rinsing dilute sulfuric acid in copper smelting, comprising: a primary power wave 10 for adjusting the concentration of dilute sulfuric acid; a surface filter 11 for filtering the dilute sulfuric acid, wherein a filter membrane is provided in the cavity of the surface filter 11; a clear liquid tank 12 for collecting the filtered dilute sulfuric acid solution; an electrostatic precipitator body 13 disposed on one side of the clear liquid tank 12, through which the dilute sulfuric acid is rinsed; an underflow tank 14 for collecting waste liquid containing impurities after rinsing, wherein a stirring rod is provided in the cavity of the underflow tank 14; and a filter press 15. 15 is used for filter pressing of waste liquid. A waste collection device 17 for collecting filter cake is set below the filter press 15. The primary power wave 10 and the surface filter 11, the clear liquid tank 12 and the electrostatic precipitator body 13, the underflow tank 14 and the filter press 15, and the filter press 15 and the primary power wave 10 are all connected by conveying pipes and pumps, and dilute sulfuric acid is recycled. The waste collection device 17 includes a first moving component 22, a second moving component 21 and multiple sets of clamps 23. The first moving component 22 includes a pushing unit, a first guide rod 24 and a first side plate 25. The second moving component 21 includes a second guide rod 32 and a second side plate 33. Connecting plates 34 are movably connected to both sides of the second side plate 33.

[0027] It is worth noting that the primary power wave 10, surface filter 11, clear liquid tank 12, electrostatic precipitator body 13, underflow tank 14 and filter press 15 are all prior art known to those skilled in the art, and will not be described in detail here.

[0028] Specifically, by setting a primary power wave 10 to adjust the concentration of dilute sulfuric acid, the dilute sulfuric acid sequentially passes through a surface filter 11 for purification, a clear liquid tank 12 for temporary storage, and the electrostatic precipitator body 13 for rinsing. The waste liquid enters the underflow tank 14 for stirring and homogenization, and then is separated by a filter press 15. The filter element is pumped back to the primary power wave 10 for reuse. Traditional water rinsing electrostatic precipitator methods often generate new dilute acid requirements, resulting in additional costs. The cleaning method provided in this application aims to effectively reduce the new dilute acid costs generated by water rinsing electrostatic precipitator. By rationally utilizing the dilute acid in the process system and optimizing the cleaning process, the dependence on additional dilute acid is reduced, thereby reducing the overall cleaning cost in the copper smelting flue gas acid production process and improving the economic benefits and market competitiveness of enterprises.

[0029] Among them, such as Figure 1-2As shown, a drive motor is fixedly installed at the top of the underflow trough 14, and the output shaft of the drive motor is fixedly connected to the stirring rod. A scraper device 16 for scraping material is provided above the filter press 15. The waste collection device 17 also includes a first support column 19, a second support column 20, and a rectangular frame 18. The rectangular frame 18 is fixedly installed at the top of the first support column 19 and the second support column 20, and is located below the filter press 15.

[0030] It should be noted that the scraper device 16 includes a starter motor, a transmission chain and gears 28, a scraper, and a control module.

[0031] Specifically, a drive motor is used to drive the stirring rod to rotate, so that the impurities and liquid are fully mixed. A scraper device 16 is set above the filter press 15 to scrape off the filter cake after pressing.

[0032] Among them, such as Figure 3-4 As shown, there are two sets of first guide rods 24. The two ends of the two sets of first guide rods 24 are fixedly connected to the first side plates 25. The two sides of the first side plates 25 are fixedly installed with lugs 26. The side of the second support column 20 near the first guide rod 24 is fixedly installed with a first fixing post 31. The first guide rod 24 movably passes through the corresponding first fixing post 31. The pushing assembly includes a rack 27 fixedly installed between the two sets of first side plates 25 and a side plate 29 fixedly installed on one side of the two sets of second support columns 20. A rotating shaft is movably installed between the two sets of side plates 29. The rotating shaft movably passes through a gear 28. The gear 28 movably meshes with the rack 27. A servo motor 30 is fixedly installed on one side of the side plate 29. The output shaft of the servo motor 30 movably passes through the side plate 29 and is fixedly connected to the rotating shaft.

[0033] Specifically, two sets of first guide rods 24 and first side plates 25 are set to form a rectangular frame 18. The rack 27 is fixed between the two sets of first side plates 25. When the servo motor 30 is working, it drives the rotating shaft and the gear 28 to rotate synchronously. The gear 28 and the rack 27 are in active meshing, thereby driving the first guide rods 24 and the first side plates 25 to move as a whole.

[0034] Among them, such as Figure 5 As shown, there are two sets of second guide rods 32. The ends of the two sets of second guide rods 32 that are far apart from each other are fixedly connected to the second side plate 33. Clips 23 are fixedly installed on the sides of the second side plate 33 and the first side plate 25 that are close to each other. Second fixing posts 36 are fixedly installed on the side of the first support column 19 that is close to the second guide rods 32. The second guide rods 32 movably pass through the corresponding second fixing posts 36. Multiple sets of engaging holes 35 are opened on the end of the connecting plate 34 that is far away from the second side plate 33. The hanging ears 26 can be movably engaged with the corresponding engaging holes 35.

[0035] Specifically, a rectangular frame 18 is formed by two sets of second guide rods 32 and second side plates 33. Connecting plates 34 are movably installed on both sides of the second side plates 33. Multiple sets of engaging holes 35 are opened at one end of the connecting plates 34. The hanging ears 26 can be movably engaged with the corresponding engaging holes 35, so that the first side plate 25 moves and pushes the second side plate 33 to move synchronously. By fixing clips 23 on the side where the second side plate 33 and the first side plate 25 are close to each other, multiple sets of clips 23 jointly hold the biochemical bag. By setting up a pushing unit, the biochemical bag, the second side plate 33, and the first side plate 25 move as a whole, collect the fallen filter cake, and safely dispose of the filter cake in accordance with the relevant regulations and procedures for hazardous waste disposal to ensure that it does not cause pollution to the environment.

[0036] The specific working principle of this utility model of a copper smelting acid production dilute sulfuric acid rinsing electrostatic precipitator is as follows: A primary power wave 10 is set to adjust the concentration of dilute sulfuric acid. The dilute sulfuric acid sequentially passes through a surface filter 11 for purification, a clear liquid tank 12 for temporary storage, and the electrostatic precipitator body 13 for rinsing. The waste liquid enters a bottom flow tank 14 for stirring and homogenization, and then is separated by a filter press 15. The filter element is pumped back to the primary power wave 10 for reuse. Two sets of second guide rods 32 and second side plates 33 form a rectangular frame 18. Connecting plates 34 are movably installed on both sides of the second side plates 33. One side of the connecting plate 34... Multiple sets of engaging holes 35 are provided at one end, and the hanging ears 26 can be movably engaged with the corresponding engaging holes 35, thereby moving the first side plate 25 to push the second side plate 33 to move synchronously. By fixing clips 23 on the side where the second side plate 33 and the first side plate 25 are close to each other, multiple sets of clips 23 jointly hold the biochemical bag. By setting a pushing unit, the biochemical bag, the second side plate 33, and the first side plate 25 are moved as a whole to collect the fallen filter cake. The filter cake is safely disposed of in accordance with the relevant regulations and procedures for hazardous waste disposal to ensure that it does not cause pollution to the environment.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An electrostatic precipitator for rinsing and precipitating dilute sulfuric acid during copper smelting, characterized in that, include: A primary dynamic wave (10) is used to adjust the concentration of dilute sulfuric acid; A surface filter (11) is used to filter dilute sulfuric acid, and a filter membrane is provided inside the cavity of the surface filter (11). Clear liquid tank (12), the clear liquid tank (12) is used to collect the filtered dilute sulfuric acid solution; The electrostatic precipitator body (13) is located on one side of the clear liquid tank (12), and dilute sulfuric acid is used to rinse through the cavity of the electrostatic precipitator body (13). The underflow tank (14) is used to collect waste liquid containing impurities after rinsing. A stirring rod is provided inside the underflow tank (14). A filter press (15) is used to filter waste liquid. A waste collection device (17) for collecting filter cake is provided below the filter press (15). The primary power wave (10) is connected to the surface filter (11), the clear liquid tank (12) is connected to the electrostatic precipitator body (13), the underflow tank (14) is connected to the filter press (15), and the filter press (15) is connected to the primary power wave (10). The dilute sulfuric acid is recycled. The waste collection device (17) includes a first moving component (22), a second moving component (21), and multiple sets of clamps (23). The first moving component (22) includes a pushing unit, a first guide rod (24), and a first side plate (25). The second moving component (21) includes a second guide rod (32) and a second side plate (33). Both sides of the second side plate (33) are movably connected to connecting plates (34).

2. The electrostatic precipitator for dilute sulfuric acid rinsing in copper smelting according to claim 1, characterized in that: A drive motor is fixedly installed at the top of the underflow tank (14), and the output shaft of the drive motor is fixedly connected to the stirring rod.

3. The electrostatic precipitator for dilute sulfuric acid rinsing in copper smelting according to claim 1, characterized in that: The filter press (15) is provided with a scraper device (16) for scraping material. The waste collection device (17) also includes a first support column (19), a second support column (20) and a rectangular frame (18). The rectangular frame (18) is fixedly installed on the top of the first support column (19) and the second support column (20), and is located below the filter press (15).

4. The electrostatic precipitator for dilute sulfuric acid rinsing in copper smelting according to claim 1, characterized in that: The first guide rod (24) consists of two sets. The two ends of the two sets of first guide rods (24) are fixedly connected to the first side plate (25). The first side plate (25) has a hanging ear (26) fixedly installed on both sides. The second support column (20) has a first fixed pile (31) fixedly installed on the side of the first guide rod (24). The first guide rod (24) moves through the corresponding first fixed pile (31).

5. The electrostatic precipitator for dilute sulfuric acid rinsing in copper smelting according to claim 1, characterized in that: The push assembly includes a rack (27) fixedly installed between two sets of first side plates (25) and a side plate (29) fixedly installed on one side of two sets of second support columns (20). A rotating shaft is movably installed between the two sets of side plates (29). The rotating shaft movably passes through a gear (28). The gear (28) movably meshes with the rack (27). A servo motor (30) is fixedly installed on one side of the side plate (29). The output shaft of the servo motor (30) movably passes through the side plate (29) and is fixedly connected to the rotating shaft.

6. The electrostatic precipitator for dilute sulfuric acid rinsing in copper smelting according to claim 1, characterized in that: The second guide rod (32) consists of two sets. The ends of the two sets of second guide rods (32) that are far apart from each other are fixedly connected to the second side plate (33). The sides of the second side plate (33) and the first side plate (25) that are close to each other are fixedly installed with clips (23). The side of the first support column (19) that is close to the second guide rod (32) is fixedly installed with second fixing piles (36). The second guide rod (32) moves through the corresponding second fixing pile (36).

7. The electrostatic precipitator for dilute sulfuric acid rinsing in copper smelting according to claim 1, characterized in that: The connecting plate (34) has multiple sets of engaging holes (35) at the end away from the second side plate (33), and the hanging ear (26) can be engaged with the corresponding engaging hole (35).

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