A high-efficiency cyanide crushing device

Abstract

This invention discloses a high-efficiency cyanide removal device in the field of wastewater treatment, comprising a monitoring system with signal connection and a cyanide removal system: the cyanide removal system includes a cyanide removal tank, with a first inlet and a second inlet connected to the lower side wall of the cyanide removal tank, and a primary cyanide removal hydrocyclone and a secondary cyanide removal hydrocyclone connected to the upper side wall of the cyanide removal tank, the output end of the primary cyanide removal hydrocyclone being connected to the second inlet, and the output end of the secondary cyanide removal hydrocyclone being connected to a flocculation tank; a driving device is installed on the top of the inner wall of the cyanide removal tank, and a chemical tank is rotatably connected to the top of the cyanide removal tank, with a partition inside the chemical tank dividing the chemical tank into a first chamber and a second chamber, the first chamber being used to store NaOH and the second chamber being used to store HCl; a first dispensing port is opened below the first chamber and the second chamber, and a valve is installed on the outlet; a second dispensing port is opened on the top of the cyanide removal tank, and a quantitative dispensing component is provided below the second dispensing port, the quantitative dispensing component being linked to the output end of the driving component.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment, specifically a high-efficiency cyanide removal device. Background Technology

[0002] With the development and progress of the times, industrial production has also developed rapidly, and the resulting industrial wastewater pollution has become increasingly serious. In particular, some large industrial plants have a daily water consumption of tons during the production process, which will inevitably generate serious wastewater pollution. Therefore, a complete wastewater recycling and treatment system is needed for wastewater treatment.

[0003] Electroplating is a versatile and widely applied industrial sector, with almost all industrial sectors involving electroplating processing to some extent. However, due to its cross-sectoral nature and dispersed distribution across various industrial sectors, a lack of unified coordination and planning often results in numerous, small, scattered, and irrationally located electroplating plants. Furthermore, my country's traditional electroplating processes are relatively outdated, and its technical capabilities are weak, posing considerable challenges to the treatment of electroplating wastewater.

[0004] Existing methods for treating cyanide-containing waste liquid include chemical methods, precipitation methods, and biofilm methods. Biofilm methods have the highest purification efficiency, but they are also costly and are usually used in laboratories. While chemical and precipitation methods are cheaper than biofilm methods, they require a large area and the amount of compounds added is difficult to control. Therefore, we propose a highly efficient cyanide removal device. Summary of the Invention

[0005] The purpose of this invention is to provide a highly efficient cyanide-breaking device to solve the problems of large footprint and difficulty in controlling the amount of compound added in existing chemical cyanide-breaking methods.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: A high-efficiency cyanide-breaking device, comprising a monitoring system and a cyanide-breaking system connected by a signal connection:

[0007] The monitoring system includes:

[0008] Monitoring instruments, installed in the cyanide removal system, are used to collect operating data during the operation of the cyanide removal system, including pH meter, suspended solids concentration meter and aeration disc;

[0009] The data analysis module is used to receive and analyze the working data collected by the monitoring instruments in order to control the addition of compounds in the cyanide-removing system.

[0010] The cyanide breaking system includes a cyanide breaking tank, with a first inlet and a second inlet connected to the lower side wall of the cyanide breaking tank, and a first-stage cyanide breaking hydrocyclone and a second-stage cyanide breaking hydrocyclone connected to the upper side wall of the cyanide breaking pipe. The output end of the first-stage cyanide breaking hydrocyclone is connected to the second inlet, and the output end of the second-stage cyanide breaking hydrocyclone is connected to a flocculation tank.

[0011] A drive device is installed on the top of the inner wall of the cyanide crushing tank. A medicine box is rotatably connected to the top of the cyanide crushing tank. The medicine box is equipped with a partition, which divides the medicine box into a first chamber and a second chamber. The first chamber is used to store NaOH with a concentration of 32%, and the second chamber is used to store HCl with a concentration of 30%.

[0012] The first chamber and the second chamber each have a first dispensing port at the bottom, and a valve is installed on the liquid outlet. The cyanide crushing tank has a second dispensing port at the top, and a quantitative dispensing component is installed below the second dispensing port. The quantitative dispensing component is linked to the output of the drive component.

[0013] The principles and beneficial effects of this solution:

[0014] Cyanide-containing wastewater enters the cyanide-breaking tank through the first inlet. A pH meter and suspended solids meter in the tank collect the pH and concentration of the wastewater. If the pH is less than 10, the first inlet of the first chamber is opened, and 32% NaOH is added to adjust the pH to 10-11. Sodium hypochlorite is also added. After mixing in the cyanide-breaking tank, the wastewater is pumped into a primary cyanide-breaking hydrocyclone for solid-liquid separation. The remaining wastewater after separation flows back to the cyanide-breaking tank through the second inlet. The pH meter again collects the pH of the wastewater, which is now alkaline. The reagent tank is rotated to align the first and second inlets of the second chamber, and 30% HCl is added to adjust the pH to 7-8. Sodium hypochlorite is added again and mixed thoroughly. The wastewater is then pumped into a secondary cyanide-breaking hydrocyclone for solid-liquid separation. The separated liquid enters a flocculation tank for sedimentation.

[0015] This solution combines a cyanide crushing tank with a hydrocyclone, enabling rapid cyanide crushing with a small footprint. By installing a reagent tank and a quantitative dosing component on the cyanide crushing tank, the amount of NaOH and HCl added is controlled based on the pH value collected by the monitoring system. After the mixture is homogeneous, it is then passed through a hydrocyclone to form a vortex, which increases the reaction rate and achieves rapid and efficient cyanide crushing. This solves the problem of difficulty in controlling the amount of compound added.

[0016] Furthermore, the quantitative dispensing component includes a rotating shaft and a baffle plate. The baffle plate is slidably connected to the second dispensing port. A first spring and a first magnet are fixedly connected to one end of the baffle plate in sequence. The rotating shaft is rotatably connected to the top wall of the cyanide crushing tank. A second spring is fixedly connected to the side wall of the rotating shaft. A second magnet is fixedly connected to the side of the second spring away from the rotating shaft. The first magnet and the second magnet are arranged with the same pole facing each other.

[0017] Beneficial effects: This solution uses a drive assembly to rotate a rotating shaft, which in turn rotates a second spring and a second magnet on the shaft. When the second magnet rotates close to the first magnet, the like poles of the first and second magnets repel each other, causing the second dispensing port to open and release the drug from the storage chamber. Due to the centrifugal effect of the rotating shaft, the faster the rotation speed, the greater the centrifugal force, the greater the thrust of the second magnet on the first magnet, and the greater the displacement change of the first spring. Consequently, the opening and closing range of the second dispensing port is larger. Therefore, the opening and closing range of the second dispensing port can be controlled according to the rotation speed of the drive assembly to achieve the purpose of quantitative drug dispensing.

[0018] Furthermore, the drive assembly includes a motor fixedly connected to the top wall of the cyanide crushing tank. The output end of the motor is coaxially fixedly connected to a first output component and a second output component in sequence. The output end of the first output component is coaxially fixedly connected to the rotating shaft, and the output end of the second output component is coaxially fixedly connected to a retractable stirring component.

[0019] Beneficial effects: The motor is coaxially fixedly connected to the first and second output components, which allows the stirring speed to be set according to the amount of medicine added, while reducing equipment costs.

[0020] Furthermore, the first output component includes a meshing first sprocket and a second sprocket, the first sprocket being coaxially and fixedly connected to the output end of the motor, and the second sprocket being coaxially and fixedly connected to the rotating shaft.

[0021] Beneficial effects: The motor drives the first and second sprockets to rotate, which in turn drives the rotating shaft to rotate, thereby controlling the opening and closing range of the second dispensing port to achieve the purpose of quantitative drug dispensing.

[0022] Furthermore, the second output component includes a meshing first helical gear and a second helical gear. The lead pitch of the first helical gear is a times the lead pitch of the second helical gear. The first helical gear is coaxially and fixedly connected to the output end of the motor, and the second helical gear is coaxially and fixedly connected to the retractable stirring component.

[0023] Beneficial effects: The motor drives the first and second helical gears to rotate, which in turn drives the retractable stirring component to rotate, so that the cyanide-containing waste liquid is mixed evenly with NaOH or HCl, accelerating the reaction speed and achieving the purpose of rapid cyanide destruction.

[0024] Furthermore, the retractable stirring assembly includes a hollow rotating shaft located below the second inlet. A cylindrical cam is installed on the upper part of the hollow rotating shaft. A groove is provided on the side wall of the cylindrical cam. A limit rod is slidably connected in the groove. The limit rod is fixedly connected to the inner wall of the cyanide crushing tank. A limit ring is sleeved on the hollow rotating shaft. The limit ring is fixedly connected to the cyanide crushing tank through a support rod. Several through holes and stirring blades are provided on the lower part of the side wall of the hollow rotating shaft.

[0025] Beneficial effects: NaOH or HCl is dispersed in water through the through holes on the hollow rotating shaft. The motor drives the first helical gear to rotate, which in turn drives the second helical gear and the hollow rotating shaft to rotate, which in turn drives the cylindrical cam to rotate. Since the cylindrical cam has a sliding groove on its side wall, a limit rod is slidably connected in the groove. The limit rod is fixedly connected to the cyanide crushing tank. When the cylindrical cam rotates, due to the limitation of the limit rod, the cylindrical cam drives the hollow rotating shaft to reciprocate only along the groove, so as to achieve the purpose of stirring in both longitudinal and circumferential directions at the same time, increasing the contact area between NaOH or HCl and cyanide-containing waste liquid, and improving the purification effect.

[0026] Furthermore, a suspended matter adsorption membrane is detachably connected to the stirring blades.

[0027] Beneficial effects: The detachable suspended matter adsorption membrane on the stirring blades can adsorb suspended matter in the waste liquid while the stirring blades are stirring the waste liquid.

[0028] Furthermore, a third dispensing port is located on the top of the medicine box.

[0029] Beneficial effect: The third dispensing port facilitates timely replenishment of NaOH or HCl in the medicine tank when it is insufficient. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the high-efficiency cyanide-breaking device according to an embodiment of the present invention.

[0031] Figure 2 This is a cross-sectional view of the cyanide crushing tank of the high-efficiency cyanide crushing device according to an embodiment of the present invention.

[0032] Figure 3 for Figure 2 Enlarged view of point A in the middle. Detailed Implementation

[0033] The following detailed description illustrates the specific implementation method:

[0034] The reference numerals in the accompanying drawings of the instruction manual include: 1. Cyanide crushing tank; 2. First inlet; 3. Second inlet; 4. First-stage cyanide crushing hydrocyclone; 5. Second-stage cyanide crushing hydrocyclone; 6. Medicine tank; 7. Baffle; 8. First inlet; 9. Second inlet; 10. Rotating shaft; 11. First spring; 12. Baffle; 13. Second spring; 14. First magnet; 15. Second magnet; 16. Motor; 17. First spur gear; 18. Second spur gear; 19. First helical gear; 20. Second helical gear; 21. Hollow rotating shaft; 22. Cylindrical cam; 23. Limiting rod; 24. Support rod; 25. Through hole; 26. Stirring blade; 27. Third inlet.

[0035] Example 1:

[0036] The basic implementation examples are as follows: Figures 1-3 As shown: A high-efficiency cyanide-crushing device, comprising a monitoring system with signal connection and a cyanide-crushing system:

[0037] The monitoring system includes:

[0038] Monitoring instruments, installed in the cyanide removal system, are used to collect operating data during the operation of the cyanide removal system, including pH meter, suspended solids concentration meter and aeration disc;

[0039] The data analysis module is used to receive and analyze the working data collected by the monitoring instruments in order to control the addition of compounds in the cyanide-removing system.

[0040] The cyanide breaking system includes a cyanide breaking tank 1. The lower side wall of the cyanide breaking tank 1 is connected to a first inlet 2 and a second inlet 3. The upper side wall of the cyanide breaking pipe is connected to a first-stage cyanide breaking hydrocyclone 4 and a second-stage cyanide breaking hydrocyclone 5. The output end of the first-stage cyanide breaking hydrocyclone 4 is connected to the second inlet 3, and the output end of the second-stage cyanide breaking hydrocyclone 5 is connected to a flocculation tank.

[0041] A drive device is installed on the top of the inner wall of the cyanide crushing tank 1. A medicine box 6 is rotatably connected to the top of the cyanide crushing tank 1. A third inlet 27 is opened on the top of the medicine box 6. A partition 7 is provided inside the medicine box 6, which divides the medicine box 6 into a first chamber and a second chamber. The first chamber is used to store NaOH with a concentration of 32%, and the second chamber is used to store HCl with a concentration of 30%.

[0042] The first chamber and the second chamber each have a first dispensing port 8 at the bottom, and a valve is installed on the liquid outlet. The cyanide crushing tank 1 has a second dispensing port 9 at the top, and a quantitative dispensing component is provided below the second dispensing port 9. The quantitative dispensing component is linked to the output end of the drive component.

[0043] The specific implementation process is as follows:

[0044] Cyanide-containing wastewater enters the cyanide-breaking tank 1 through the first inlet 2. A pH meter and suspended solids meter in the cyanide-breaking tank 1 collect the pH and concentration of the wastewater. If the pH of the wastewater is less than 10, the first inlet 8 of the first chamber is opened, and 32% NaOH is added to adjust the pH to 10-11. Sodium hypochlorite is also added. After mixing in the cyanide-breaking tank 1, the wastewater is pumped into the first-stage cyanide-breaking hydrocyclone 4 for solid-liquid separation. The residual wastewater after separation flows back to the cyanide-breaking tank 1 through the second inlet 3. The pH meter collects the pH of the wastewater again. At this point, the wastewater is alkaline. The reagent tank 6 is rotated to align the first inlet 8 and the second inlet 9 of the second chamber. 30% HCl is added to the wastewater to adjust the pH to 7-8. Sodium hypochlorite is added again to ensure even mixing. The wastewater is then pumped into the second-stage cyanide-breaking hydrocyclone 5 for solid-liquid separation. The separated liquid enters the flocculation tank for sedimentation.

[0045] This solution involves installing a reagent tank 6 and a quantitative dosing component on the cyanide crushing tank 1. The amount of NaOH and HCl added is controlled based on the pH value collected by the monitoring system, ensuring that they are mixed evenly. Then, a hydrocyclone is used to create a vortex, which increases the reaction rate and achieves the purpose of rapid and efficient cyanide crushing.

[0046] Example 2:

[0047] The difference from the above embodiment is that the quantitative dispensing component includes a rotating shaft 10 and a baffle 12. The baffle 12 is slidably connected to the second dispensing port 9. A first spring 11 and a first magnet 14 are fixedly connected to one end of the baffle 12 in sequence. The rotating shaft 10 is rotatably connected to the top wall of the cyanide crushing tank 1. A second spring 13 is fixedly connected to the side wall of the rotating shaft 10. A second magnet 15 is fixedly connected to the side of the second spring 13 away from the rotating shaft 10. The first magnet 14 and the second magnet 15 are arranged with the same pole facing each other.

[0048] The drive assembly includes a motor 16 fixedly connected to the top wall of the cyanide crushing tank 1. The output end of the motor 16 is coaxially fixedly connected to a first output component and a second output component. The output end of the first output component is coaxially fixedly connected to the rotating shaft 10, and the output end of the second output component is coaxially fixedly connected to a retractable stirring component.

[0049] The first output component includes a meshing first sprocket 17 and a second sprocket 18. The first sprocket 17 is coaxially and fixedly connected to the output end of the motor 16, and the second sprocket 18 is coaxially and fixedly connected to the rotating shaft 10.

[0050] The second output component includes a first helical gear 19 and a second helical gear 20 that mesh. The lead pitch of the first helical gear 19 is a times the lead pitch of the second helical gear 20. The first helical gear 19 is coaxially and fixedly connected to the output end of the motor 16, and the second helical gear 20 is coaxially and fixedly connected to the retractable stirring component.

[0051] The retractable stirring assembly includes a hollow rotating shaft 21 located below the second inlet 9. A cylindrical cam 22 is installed on the upper part of the hollow rotating shaft 21. The side wall of the cylindrical cam 22 is provided with a sliding groove. A limit rod 23 is slidably connected in the sliding groove. The limit rod 23 is fixedly connected to the inner wall of the cyanide crushing tank 1. A limit ring is sleeved on the hollow rotating shaft 21. The limit ring is fixedly connected to the cyanide crushing tank 1 through a support rod 24. Several through holes 25 and stirring blades 26 are provided on the lower part of the side wall of the hollow rotating shaft 21. A suspended matter adsorption membrane is detachably connected to the stirring blades 26.

[0052] The specific implementation process is as follows:

[0053] The motor 16 is started, which drives the first sprocket 17 and the second sprocket 18 to rotate, which in turn drives the rotating shaft 10 to rotate. This, in turn, drives the second spring 13 and the second magnet 15 on the rotating shaft 10 to rotate. When the second magnet 15 rotates close to the first magnet 14, the like poles of the first magnet 14 and the second magnet 15 repel each other, and the second dispensing port 9 opens, releasing the medicine in the storage chamber. Due to the centrifugal effect of the rotating shaft 10, the faster the rotating shaft 10 rotates, the greater the centrifugal force, the greater the thrust of the second magnet 15 on the first magnet 14, the greater the displacement change of the first spring 11, and thus the larger the opening and closing range of the second dispensing port 9. Therefore, the opening and closing range of the second dispensing port 9 is controlled according to the rotation speed of the drive assembly to achieve the purpose of quantitative drug dispensing.

[0054] Simultaneously, the motor 16 drives the first helical gear 19, the second helical gear 20, and the hollow rotating shaft 21 to rotate, which in turn drives the cylindrical cam 22 to rotate. Since the cylindrical cam 22 has a sliding groove on its side wall, a limit rod 23 is slidably connected in the sliding groove. The limit rod 23 is fixedly connected to the cyanide crushing tank 1. When the cylindrical cam 22 rotates, due to the limitation of the limit rod 23, the cylindrical cam 22 drives the hollow rotating shaft 21 to reciprocate only along the sliding groove, so as to achieve the purpose of stirring in both longitudinal and circumferential directions at the same time, increasing the contact area between NaOH or HCl and cyanide-containing waste liquid, and improving the purification effect. When the stirring blade 26 stirs back and forth, the suspended matter adsorption film on the stirring blade 26 can adsorb the suspended matter in the waste liquid.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0056] The above descriptions are merely embodiments of the present invention. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention. These should also be considered within the scope of protection of the present invention, and will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A high-efficiency cyanide crushing device, characterized in that: This includes a monitoring system with signal connections and a cyanide-breaking system. The monitoring system includes: Monitoring instruments, installed in the cyanide removal system, are used to collect operational data during system operation, including pH meters and suspension analyzers. Concentration meter and aeration disc; The data analysis module receives and analyzes the operational data collected by the monitoring instruments to control the cyanide removal system. The addition of compounds; The cyanide-breaking system includes a cyanide-breaking tank, with a first inlet and a second inlet connected to the lower side wall of the tank, and a cyanide-breaking pipe located above the side wall. It is connected to a primary cyanide-breaking hydrocyclone and a secondary cyanide-breaking hydrocyclone. The output end of the primary cyanide-breaking hydrocyclone is connected to the secondary hydrocyclone. The inlet is connected to the output end of the secondary cyanide-breaking hydrocyclone, which is connected to a flocculation tank. A drive unit is installed on the top of the inner wall of the cyanide crushing tank. A medicine tank is rotatably connected to the top of the cyanide crushing tank. The medicine tank is equipped with partitions. The medicine box is divided into a first chamber and a second chamber. The first chamber is used to store 32% NaOH, and the second chamber is used to store... HCl with a concentration of 30% is stored. The first chamber and the second chamber each have a first dispensing port at the bottom, and a valve is installed on the liquid outlet. The top of the cyanide crushing tank has a second dispensing port, and a quantitative dispensing component is installed below the second dispensing port. The quantitative dispensing component is linked to the output end of the drive component. The quantitative dispensing component includes a rotating shaft and a baffle. The baffle is slidably connected to the second dispensing port. A first spring and a first magnet are fixedly connected to one end of the baffle in sequence. The rotating shaft is rotatably connected to the top wall of the cyanide crushing tank. A second spring is fixedly connected to the side wall of the rotating shaft. A second magnet is fixedly connected to the side of the second spring away from the rotating shaft. The first magnet and the second magnet are arranged with the same pole facing each other. The drive assembly includes a motor fixedly connected to the top wall of the cyanide crushing tank. The output end of the motor is coaxially fixedly connected to a first output component and a second output component in sequence. The output end of the first output component is coaxially fixedly connected to a rotating shaft, and the output end of the second output component is coaxially fixedly connected to a retractable stirring component. The first output component includes a meshing first sprocket and a second sprocket. The first sprocket is coaxially and fixedly connected to the output end of the motor, and the second sprocket is coaxially and fixedly connected to the rotating shaft. The second output component includes a meshing first helical gear and a second helical gear. The lead pitch of the first helical gear is a times the lead pitch of the second helical gear. The first helical gear is coaxially and fixedly connected to the output end of the motor, and the second helical gear is coaxially and fixedly connected to the retractable stirring component. The retractable stirring assembly includes a hollow rotating shaft located below the second inlet. A cylindrical cam is installed on the upper part of the hollow rotating shaft. A groove is provided on the side wall of the cylindrical cam. A limit rod is slidably connected in the groove. The limit rod is fixedly connected to the inner wall of the cyanide crushing tank. A limit ring is sleeved on the hollow rotating shaft. The limit ring is fixedly connected to the cyanide crushing tank through a support rod. Several through holes and stirring blades are provided on the lower part of the side wall of the hollow rotating shaft. A suspended matter adsorption membrane is detachably connected to the stirring blades; a third dispensing port is opened on the top of the medicine tank.

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