Medicament adding device for mine wastewater treatment
By designing an integrated reagent dosing device, the problems of inaccurate reagent dosing and dust pollution in mine wastewater treatment were solved, achieving efficient and safe reagent dosing and wastewater treatment, and reducing operation and maintenance costs.
Patent Information
- Application Number
- CN202521735888.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-15
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-08-15
AI Technical Summary
The treatment of mine wastewater suffers from problems such as inaccurate reagent dosing, low automation, dust pollution caused by the addition of powdered reagents, and difficulty in achieving efficient integration and precise control of traditional equipment, resulting in low treatment efficiency and high operation and maintenance costs.
A reagent dosing device was designed, comprising an integrated air flotation defluorination unit, a defluorinating agent dosing component, a coagulant dosing component, and a coagulant aid dosing component. The device achieves closed-loop transport and precise dosing of the reagents through equipment such as a dust-free feeding station, a Roots blower, and a vacuum feeder. Combined with a primary transfer pump, a secondary transfer pump, and a mixer, the device ensures the stable dissolution and uniformity of the reagents. All components are integrated into the integrated air flotation defluorination unit for collaborative operation.
It enables precise dosing of multi-component reagents, improves the efficiency of mine wastewater treatment, reduces operation and maintenance costs, protects the health of operators, and has a compact structure and is easy to operate, thus improving the system's operational stability and reliability.
Smart Images
Figure CN223659906U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a reagent dosing device for treating mine wastewater. Background Technology
[0002] With the expansion of mining scale and depth, the discharge of mine wastewater continues to increase. Its composition is complex and its hazards are significant: on the one hand, it contains high concentrations of fluoride ions, suspended solids, and heavy metal pollutants. Direct discharge without effective treatment will lead to surface water pollution, soil acidification, and ecosystem damage. On the other hand, traditional mine wastewater treatment methods suffer from problems such as fragmented processes, low automation, and insufficient precision in reagent dosing. Especially for the treatment of fluoride-containing wastewater, the synergistic effect of multiple reaction units is often required, but existing devices struggle to achieve efficient integration and precise control. Furthermore, powdered reagents (such as defluorinating agents and coagulants) easily generate dust pollution during manual dosing, threatening the health of operators and causing material waste. Therefore, there is an urgent need for an integrated device capable of intelligent proportioning, closed-loop transportation, and efficient reaction of multi-component reagents to improve mine wastewater treatment efficiency and reduce operation and maintenance costs. Utility Model Content
[0003] The purpose of this invention is to provide a reagent dosing device for mine wastewater treatment, aiming to solve the above-mentioned problems.
[0004] This utility model provides a reagent dosing device for mine wastewater treatment, comprising:
[0005] Integrated air flotation defluorination unit;
[0006] A defluorinating agent dosing assembly includes: a defluorinating agent dissolving tank, a defluorinating agent storage tank, and a defluorinating agent dosing tank, which are connected in sequence. The defluorinating agent dosing tank is connected to the integrated air flotation defluorination device. The defluorinating agent dosing assembly is used to add defluorinating agent into the integrated air flotation defluorination device.
[0007] A coagulant dosing assembly includes a coagulant dissolving tank and a coagulant dosing tank, the coagulant dissolving tank and the coagulant dosing tank being connected, the coagulant dosing tank being connected to the integrated air flotation defluorination device, and the coagulant dosing assembly being used to add coagulant into the integrated air flotation defluorination device;
[0008] A coagulant dosing assembly includes: a coagulant dosing tank, which is connected to the integrated air flotation defluorination device, and the coagulant dosing assembly is used to add coagulant to the integrated air flotation defluorination device.
[0009] Preferably, the defluorinating agent dosing assembly further includes: a dust-free feeding station, a Roots blower, and a vacuum feeder. The dust-free feeding station is connected to the vacuum feeder via a powder feeding pipe, the Roots blower is connected to the vacuum feeder via a vacuum negative pressure pipe, and the vacuum feeder is connected to the defluorinating agent dissolving tank.
[0010] Preferably, the defluorinating agent dosing assembly further includes: a primary transfer pump, a secondary transfer pump, a defluorinating agent dosing pump, a primary mixer, and a secondary mixer; the primary transfer pump is disposed between the defluorinating agent dissolving tank and the defluorinating agent storage tank; the secondary transfer pump is disposed between the defluorinating agent storage tank and the defluorinating agent dosing tank; the defluorinating agent dosing pump is disposed between the defluorinating agent dosing tank and the integrated air flotation defluorination device; the primary mixer is disposed on the defluorinating agent dissolving tank and is used to stir the liquid in the defluorinating agent dissolving tank; the secondary mixer is disposed on the defluorinating agent storage tank and is used to stir the liquid in the defluorinating agent storage tank.
[0011] Preferably, the coagulant dosing assembly further includes: a dust-free feeding station, a Roots blower, and a vacuum feeder. The dust-free feeding station is connected to the vacuum feeder via a powder feeding pipe, the Roots blower is connected to the vacuum feeder via a vacuum negative pressure pipe, and the vacuum feeder is connected to the coagulant dissolving tank.
[0012] Preferably, the coagulant dosing assembly further includes: a primary transfer pump, a coagulant dosing pump, and a primary mixer; the primary transfer pump is located between the coagulant dissolving tank and the coagulant dosing tank; the coagulant dosing pump is located between the coagulant dosing tank and the integrated air flotation defluorination device; the primary mixer is located on the coagulant dissolving tank and is used to stir the liquid in the coagulant dissolving tank.
[0013] Preferably, the coagulant dosing assembly further includes a coagulant dosing pump, which is disposed between the coagulant dosing tank and the integrated air flotation defluorination device.
[0014] Preferably, the reagent dosing device further includes: a water purification tank and a constant pressure water supply device. The water purification tank is connected to the integrated air flotation defluoridation device. The inlet of the constant pressure water supply device is connected to the water purification tank. The outlet of the constant pressure water supply device is connected to the defluoridant dissolving tank and the coagulant dissolving tank. The constant pressure water supply device is used to transport water from the water purification tank to the defluoridant dissolving tank and the coagulant dissolving tank to provide dissolving water.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] This invention enables precise dosing of various reagents, effectively removing impurities such as fluoride from mine wastewater. The integrated air flotation defluorination device, working in synergy with each dosing component, significantly improves the efficiency and effectiveness of wastewater treatment. By incorporating a dust-free feeding station, Roots blower, and vacuum feeder, dust pollution during reagent dosing is avoided, ensuring a safe working environment and protecting the health of operators. The rational configuration of the primary and secondary transfer pumps, dosing pumps, and mixers makes the dissolution, storage, and dosing of reagents more stable and efficient. The primary and secondary mixers thoroughly stir the reagent solution, ensuring uniformity and thus improving the reaction between the reagent and the wastewater. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of a reagent dosing device for mine wastewater treatment according to this utility model;
[0019] Figure 2 This is a schematic diagram of the structure of the defluorinating agent dosing assembly in an embodiment of this utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the coagulant dosing component in an embodiment of this utility model.
[0021] In the diagram, 100 is the integrated air flotation defluoridation unit; 200 is the water purification tank; 1 is the defluoridant dissolving tank; 2 is the defluoridant storage tank; 3 is the defluoridant dosing tank; 4 is the coagulant dissolving tank; 5 is the coagulant dosing tank; 6 is the coagulant aid dosing tank; 7 is the dust-free feeding station; 8 is the Roots blower; 9 is the vacuum feeder; 10 is the primary transfer pump; 11 is the secondary transfer pump; 12 is the defluoridant dosing pump; 13 is the primary mixer; 14 is the secondary mixer; 15 is the coagulant dosing pump; 16 is the coagulant aid dosing pump; and 17 is the constant pressure water supply device. Detailed Implementation
[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0023] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0024] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0026] like Figures 1-3 As shown, this utility model provides a reagent dosing device for mine wastewater treatment, including: an integrated air flotation defluoridation device 100, a defluoridation agent dosing component, a coagulant dosing component, and a coagulant aid dosing component.
[0027] The defluorinating agent dosing assembly includes: a defluorinating agent dissolving tank 1, a defluorinating agent storage tank 2, and a defluorinating agent dosing tank 3, which are connected in sequence. The defluorinating agent dosing tank 3 is connected to the air flotation defluorination integrated device 100. The defluorinating agent dosing assembly is used to add defluorinating agent into the air flotation defluorination integrated device 100.
[0028] The coagulant dosing assembly includes: a coagulant dissolving tank 4 and a coagulant dosing tank 5, which are connected together. The coagulant dosing tank 5 is connected to the integrated air flotation defluorination device 100. The coagulant dosing assembly is used to add coagulant into the integrated air flotation defluorination device 100.
[0029] The coagulant dosing assembly includes: a coagulant dosing tank 6, which is connected to the integrated air flotation defluorination device 100. The coagulant dosing assembly is used to add coagulant to the integrated air flotation defluorination device 100.
[0030] This invention, by incorporating a defluoridator dosing assembly including a defluoridator dissolving tank 1, a defluoridator storage tank 2, and a defluoridator dosing tank 3, enables precise preparation and stable dosing of the defluoridator, ensuring effective removal of fluorides from mine wastewater and improving treatment efficiency. The coagulant dosing assembly, through the cooperation of the coagulant dissolving tank 4 and the coagulant dosing tank 5, precisely controls the dosage of coagulant, promoting the coagulation of suspended particles in wastewater and improving the subsequent solid-liquid separation effect. The addition of a coagulant aid dosing assembly further optimizes the wastewater treatment process; the addition of coagulant aids enhances floc formation and stability, improves the flotation treatment effect, and ensures that the effluent quality meets standards. This application integrates defluoridation, coagulation, and coagulation aid functions into an integrated flotation defluoridation device 100, which has a compact structure, is easy to operate, reduces equipment footprint, and facilitates maintenance and management. Furthermore, the connection between each dosing assembly and the integrated flotation defluoridation device 100 enables automated control of reagent dosing, reducing manual intervention and improving the system's operational stability and reliability.
[0031] In some embodiments of this application, the defluorinating agent dosing assembly further includes: a dust-free feeding station 7, a Roots blower 8, and a vacuum feeder 9. The dust-free feeding station 7 is connected to the vacuum feeder 9 through a powder feeding pipe, the Roots blower 8 is connected to the vacuum feeder 9 through a vacuum negative pressure pipe, and the vacuum feeder 9 is connected to the defluorinating agent dissolving tank 1.
[0032] Understandably, the installation of the cleanroom feeding station 7, the Roots blower 8, and the vacuum feeder 9 further enhances the safety and efficiency of the defluorinating agent dosing assembly. The cleanroom feeding station 7 effectively reduces dust generation during the defluorinating agent dosing process, preventing operators from inhaling harmful dust and protecting their health. The Roots blower 8 and the vacuum feeder 9 use vacuum negative pressure to transport the defluorinating agent from the cleanroom feeding station 7 to the defluorinating agent dissolving tank 1. This method not only avoids the inconvenience of manual handling and reduces labor intensity but also minimizes the defluorinating agent's contact with the external environment, preventing contamination during transport and avoiding the risk of leakage due to improper manual operation.
[0033] In some embodiments of this application, the defluorinating agent dosing assembly further includes: a primary transfer pump 10, a secondary transfer pump 11, a defluorinating agent dosing pump 12, a primary mixer 13, and a secondary mixer 14; the primary transfer pump 10 is disposed between the defluorinating agent dissolving tank 1 and the defluorinating agent storage tank 2; the secondary transfer pump 11 is disposed between the defluorinating agent storage tank 2 and the defluorinating agent dosing tank 3; the defluorinating agent dosing pump 12 is disposed between the defluorinating agent dosing tank 3 and the air flotation defluorination integrated device 100; the primary mixer 13 is disposed on the defluorinating agent dissolving tank 1 and is used to stir the liquid in the defluorinating agent dissolving tank 1; the secondary mixer 14 is disposed on the defluorinating agent storage tank 2 and is used to stir the liquid in the defluorinating agent storage tank 2.
[0034] Understandably, the rational arrangement of the primary transfer pump 10, the secondary transfer pump 11, and the defluorinating agent dosing pump 12 enables the orderly flow and precise dosing of the defluorinating agent between different tanks. The primary transfer pump 10 transports the dissolved defluorinating agent from the dissolving tank to the storage tank, ensuring the defluorinating agent solution can be stored for future use. The secondary transfer pump 11 further transports the defluorinating agent from the storage tank to the dosing tank, preparing for subsequent dosing operations. The defluorinating agent dosing pump 12 precisely adds the defluorinating agent from the dosing tank to the integrated air flotation defluorination device 100, ensuring that the defluorinating agent enters the treatment stage at the required dosage and rate, thus improving the effectiveness and efficiency of mine wastewater defluorination treatment.
[0035] The primary mixer 13 and the secondary mixer 14 play a crucial role in ensuring the uniformity of the defluorinating agent solution. The primary mixer 13 continuously stirs the solution in the defluorinating agent dissolving tank 1, ensuring the defluorinating agent is fully dissolved in the water, forming a homogeneous solution and preventing precipitation or uneven concentration. The secondary mixer 14 stirs the solution in the defluorinating agent storage tank 2, further maintaining its uniformity and ensuring a stable concentration of the defluorinating agent solution delivered to the dosing tank and ultimately added to the treatment device, thus guaranteeing consistent defluorination performance. The primary mixer 13 operates at a higher speed than the secondary mixer 14.
[0036] In some embodiments of this application, level gauges are provided in both the defluorinating agent storage tank 2 and the defluorinating agent dosing tank 3.
[0037] In some embodiments of this application, the coagulant dosing assembly further includes: a dust-free feeding station 7, a Roots blower 8, and a vacuum feeder 9. The dust-free feeding station 7 is connected to the vacuum feeder 9 through a powder feeding pipe, the Roots blower 8 is connected to the vacuum feeder 9 through a vacuum negative pressure pipe, and the vacuum feeder 9 is connected to the coagulant dissolving tank 4.
[0038] It is understandable that the dust-free feeding station 7, the Roots blower 8, and the vacuum feeder 9 play the same role in the preparation of coagulants as they do in the preparation of defluorinating agents, all in order to improve the feeding and conveying efficiency of coagulants.
[0039] In some embodiments of this application, the coagulant dosing assembly further includes: a primary transfer pump 10, a coagulant dosing pump 15, and a primary mixer 13; the primary transfer pump 10 is disposed between the coagulant dissolving tank 4 and the coagulant dosing tank 5; the coagulant dosing pump 15 is disposed between the coagulant dosing tank 5 and the integrated air flotation defluorination device 100; the primary mixer 13 is disposed on the coagulant dissolving tank 4 and is used to stir the liquid in the coagulant dissolving tank 4.
[0040] Specifically, the coagulant dosing assembly also includes a primary transfer pump 10, a coagulant dosing pump 15, and a primary mixer 13. The primary transfer pump 10 is located between the coagulant dissolving tank 4 and the coagulant dosing tank 5, primarily used to transfer the dissolved coagulant solution from the dissolving tank 4 to the dosing tank 5 for further transport and storage. The coagulant dosing pump 15 is located between the coagulant dosing tank 5 and the integrated air flotation defluorination unit 100, its function being to precisely deliver the coagulant solution from the dosing tank 5 to the integrated air flotation defluorination unit 100 according to process requirements, thereby ensuring the smooth progress of the coagulation reaction. Furthermore, the primary mixer 13 is located on the coagulant dissolving tank 4, its function being to thoroughly agitate the liquid within the tank, promoting rapid dissolution and uniform distribution of the coagulant, preventing sedimentation or uneven mixing, thereby improving the coagulation effect and ensuring the stability and reliability of subsequent treatment processes.
[0041] In some embodiments of this application, the coagulant dosing assembly further includes a coagulant dosing pump 16, which is disposed between the coagulant dosing tank 6 and the integrated air flotation defluorination device 100.
[0042] Understandably, the installation of the coagulant dosing pump 16 significantly enhances the effectiveness of the coagulant in mine wastewater treatment. It precisely controls the dosage of coagulant added to the integrated air flotation defluorination unit 100, accurately delivering the appropriate amount of coagulant based on the specific water quality and treatment requirements of the mine wastewater. This precise dosing method helps enhance the removal of impurities and fluorides in wastewater treatment, making the treatment more efficient. By rationally adding coagulant, larger and denser flocs can be formed, accelerating the sedimentation rate and thus improving the overall treatment efficiency and quality of the integrated air flotation defluorination unit 100.
[0043] In some embodiments of this application, the reagent dosing device further includes: a water purification tank 200 and a constant pressure water supply device 17. The water purification tank 200 is connected to the air flotation defluoridation integrated device 100. The inlet of the constant pressure water supply device 17 is connected to the water purification tank 200, and the outlet of the constant pressure water supply device 17 is connected to the defluoridant dissolving tank 1 and the coagulant dissolving tank 4. The constant pressure water supply device 17 is used to transport water from the water purification tank 200 to the defluoridant dissolving tank 1 and the coagulant dissolving tank 4 to provide dissolving water.
[0044] Understandably, the installation of the water purification tank 200 and the constant pressure water supply device 17 provides a stable and reliable water source for the dissolution of the chemicals. The constant pressure water supply device 17 ensures that water from the water purification tank 200 is delivered to the defluoridant dissolving tank 1 and the coagulant dissolving tank 4 at a constant pressure, preventing uneven dissolution or low dissolution efficiency of the defluoridant and coagulant due to unstable water pressure. This stable water supply method helps to accurately control the concentration of the chemicals, thereby improving the effectiveness of the chemicals in mine wastewater treatment.
[0045] By connecting the water purification tank 200 to the integrated air flotation defluorination device 100, the treated water can be effectively collected and utilized, realizing the recycling of water resources and reducing the cost of mine wastewater treatment. Simultaneously, the constant pressure water supply device 17 transports water from the water purification tank 200 to the chemical dissolving tank, avoiding the water quality instability and pollution risks that may arise from using external water sources, further ensuring the quality of chemical dissolution and the effectiveness of wastewater treatment.
[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.
Claims
1. A reagent dosing device for treating mine wastewater, characterized in that, include: Integrated air flotation defluorination unit; A defluorinating agent dosing assembly includes: a defluorinating agent dissolving tank, a defluorinating agent storage tank, and a defluorinating agent dosing tank, which are connected in sequence. The defluorinating agent dosing tank is connected to the integrated air flotation defluorination device. The defluorinating agent dosing assembly is used to add defluorinating agent into the integrated air flotation defluorination device. A coagulant dosing assembly includes a coagulant dissolving tank and a coagulant dosing tank, the coagulant dissolving tank and the coagulant dosing tank being connected, the coagulant dosing tank being connected to the integrated air flotation defluorination device, and the coagulant dosing assembly being used to add coagulant into the integrated air flotation defluorination device; A coagulant dosing assembly includes: a coagulant dosing tank, which is connected to the integrated air flotation defluorination device, and the coagulant dosing assembly is used to add coagulant to the integrated air flotation defluorination device.
2. The reagent dosing device for mine wastewater treatment according to claim 1, characterized in that, The defluorinating agent dosing assembly also includes: a dust-free feeding station, a Roots blower, and a vacuum feeder. The dust-free feeding station is connected to the vacuum feeder via a powder feeding pipe. The Roots blower is connected to the vacuum feeder via a vacuum negative pressure pipe. The vacuum feeder is connected to the defluorinating agent dissolving tank.
3. The reagent dosing device for mine wastewater treatment according to claim 2, characterized in that, The defluorinating agent dosing assembly further includes: a primary transfer pump, a secondary transfer pump, a defluorinating agent dosing pump, a primary mixer, and a secondary mixer; the primary transfer pump is located between the defluorinating agent dissolving tank and the defluorinating agent storage tank; the secondary transfer pump is located between the defluorinating agent storage tank and the defluorinating agent dosing tank; the defluorinating agent dosing pump is located between the defluorinating agent dosing tank and the integrated air flotation defluorination device; the primary mixer is located on the defluorinating agent dissolving tank and is used to stir the liquid in the defluorinating agent dissolving tank; the secondary mixer is located on the defluorinating agent storage tank and is used to stir the liquid in the defluorinating agent storage tank.
4. The reagent dosing device for mine wastewater treatment according to claim 1, characterized in that, The coagulant dosing assembly further includes: a dust-free feeding station, a Roots blower, and a vacuum feeder. The dust-free feeding station is connected to the vacuum feeder via a powder feeding pipe. The Roots blower is connected to the vacuum feeder via a vacuum negative pressure pipe. The vacuum feeder is connected to the coagulant dissolving tank.
5. The reagent dosing device for mine wastewater treatment according to claim 4, characterized in that, The coagulant dosing assembly further includes: a primary transfer pump, a coagulant dosing pump, and a primary mixer; the primary transfer pump is located between the coagulant dissolving tank and the coagulant dosing tank; the coagulant dosing pump is located between the coagulant dosing tank and the integrated air flotation defluorination device; the primary mixer is located on the coagulant dissolving tank and is used to stir the liquid in the coagulant dissolving tank.
6. The reagent dosing device for mine wastewater treatment according to claim 1, characterized in that, The coagulant dosing assembly further includes a coagulant dosing pump, which is located between the coagulant dosing tank and the integrated air flotation defluorination device.
7. The reagent dosing device for mine wastewater treatment according to claim 1, characterized in that, The reagent dosing device further includes: a water purification tank and a constant pressure water supply device. The water purification tank is connected to the integrated air flotation defluoridation device. The inlet of the constant pressure water supply device is connected to the water purification tank. The outlet of the constant pressure water supply device is connected to the defluoridant dissolving tank and the coagulant dissolving tank. The constant pressure water supply device is used to transport water from the water purification tank to the defluoridant dissolving tank and the coagulant dissolving tank to provide dissolving water.