A fluorine and iron co-removal device for high-fluorine and high-iron mine water

Abstract

The utility model discloses a kind of fluorine-iron co-decreasing processing devices of high-fluorine high-iron mine water, it is related to high-fluorine high-iron mine water treatment technical field, including aeration tank, the aeration tank, reaction tank and manganese sand filter tank, the reaction tank is located at the right end of aeration tank, the manganese sand filter tank is located at the right end of reaction tank, the right end of manganese sand filter tank is placed with clean water tank, the front end of aeration tank is placed with air compressor, the right end of air compressor is placed with dosing device, this fluorine-iron co-decreasing processing device of high-fluorine high-iron mine water can be directly carried out at normal temperature, without hardening, turbidity removal, pH adjustment and other pretreatment links, and can complete flocculation and iron removal, fluorine removal procedure within 10~15min.Flocculation after being filtered, the water body obtained is basically close to neutral, water quality is clear, fluorine content is less than 1mg / L, iron content is less than 0.3mg / L, can reach drinking water standard.

Description

Technical Field

[0001] This utility model relates to the field of high-fluoride and high-iron mine water treatment technology, specifically a device for reducing fluoride and iron in high-fluoride and high-iron mine water. Background Technology

[0002] In my country's water resources, mine groundwater is increasingly being developed and utilized due to its wide distribution, good water quality, and resistance to pollution. However, due to the natural rock conditions and vegetation destruction, the levels of fluoride ions (F) in groundwater are rising. - ferrous ions Fe 2+ The concentration of F in the groundwater significantly exceeded the requirements, therefore the concentration of F in the groundwater was reduced. - Fe 2+ The concentration of fluoride and iron ions in wastewater is increasingly attracting attention as it reaches drinking water standards, thus necessitating the treatment of these pollutants.

[0003] The most commonly used existing treatment devices for high-fluoride mine water are defluorination adsorption devices. However, the adsorption capacity of the defluorination adsorption packing is limited. Once saturated, the adsorbent and fluoride cannot react, requiring periodic regeneration of the packing using a regenerating agent so it can be reused. Current regeneration methods typically involve chemical reagents, which are complex and require almost daily regeneration. The regenerating agent needs to be manually prepared, preventing fully automated operation and complicating management. Furthermore, the treatment of the regeneration wastewater is complex, often resulting in direct discharge without proper treatment, causing severe environmental pollution. The short lifespan and high operating costs of the defluorination adsorption packing further hinder its application. To address these issues, a fluoride and iron co-reduction treatment device for high-fluoride and high-iron mine water is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a device for treating high-fluoride and high-iron mine water by reducing fluoride and iron content, thus solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fluoride and ferric chloride treatment device for high-fluoride and high-ferric mine water, comprising an aeration tank, a reaction tank, and a manganese sand filter tank. The reaction tank is located at the right end of the aeration tank, and the manganese sand filter tank is also located at the right end of the reaction tank. A clear water tank is placed at the right end of the manganese sand filter tank. An air compressor is placed at the front end of the aeration tank, and a dosing device is placed at the right end of the air compressor. A backwash water pump is placed at the left end of the clear water tank. A main inlet pipe is fixedly connected to the lower end of the aeration tank, and one end of the main inlet pipe is connected to the air compressor. A first outlet pipe is fixedly connected to the lower end of the aeration tank. One end of the pipe is connected to the bottom of the reaction tank. A second outlet pipe is fixedly connected to the upper end of the reaction tank. A reaction tank inlet is fixedly connected to the right end of the reaction tank. The reaction tank inlet is connected to the outlet of the metering pump through a first conduit. A second conduit is fixedly connected to the inlet of the metering pump. One end of the second outlet pipe is connected to the top of the manganese sand filter tank. A third outlet pipe is fixedly connected to the lower end of the manganese sand filter tank. One end of the third outlet pipe extends into the interior of the third outlet pipe. A fourth conduit is fixedly connected to one end of the backwash water pump. One end of the fourth conduit extends into the interior of the clear water tank. A main outlet pipe is fixedly connected to the right side of the clear water tank.

[0006] Preferably, the top of the inner cavity of the manganese sand filter tank is provided with an upper water distributor, which is a fixed arched circular plate. The bottom of the inner cavity of the manganese sand filter tank is fixedly connected with a lower water distributor, which is a fixed arched plate structure. Several filter heads are detachably connected to the upper surface of the lower water distributor. Manganese sand is placed on the lower water distributor, and the height of the manganese sand is 1 to 1.5 meters. The top of the manganese sand filter tank is equipped with a manganese sand filter tank inlet, which is connected to the upper water distributor. One end of the manganese sand filter tank inlet is fixedly connected to a fifth conduit.

[0007] Preferably, a manganese sand filter tank outlet is provided on the lower side of the outer surface of the right end of the manganese sand filter tank, a third conduit is provided at one end of the manganese sand filter tank outlet, the right end of the third conduit is connected to the backwash water pump, the backwash water pump is detachably connected to the third conduit, a fourth conduit is provided at the right end of the backwash water pump, the backwash water pump is detachably connected to the fourth conduit, a third water outlet pipe is connected to the upper end of the clean water tank, and a manganese sand filter tank vent is installed on the top of the manganese sand filter tank.

[0008] Preferably, the first outlet pipe is connected to the inlet of the reaction tank installed on the reaction tank. A chemical inlet is provided at the bottom of the reaction tank. A first vertical flocculation grid reaction plate and a second vertical flocculation grid reaction plate are installed inside the reaction tank, intersecting perpendicularly along the central axis. Both the first and second vertical flocculation grid reaction plates are covered with a grid. A reaction tank outlet is installed at the bottom of the reaction tank, and a chemical inlet is installed at the top of the reaction tank. The reactor is equipped with a vent. The first and second vertical flocculation grid reaction plates are welded and fixed at the central axis. The edges of the first and second vertical flocculation grid reaction plates are welded and fixed to the inside of the reactor. After the influent and the added reagent are mixed, the influent spirals upward and passes through the first and second vertical flocculation grid reaction plates multiple times to the outlet of the reactor. The ferric chloride reagent reacts with Fe(OH)3 in the water to form flocculation particles, which gradually increase in size and facilitate subsequent filtration and removal by the manganese sand filter.

[0009] Preferably, an air inlet pipe is fixedly connected to the bottom of the aeration tank, one end of the air inlet pipe is connected to an air inlet installed on the side of the aeration tank, and an aeration pipe is fixedly connected to the top of the air inlet. One end of the air compressor is connected to one end of the air inlet pipe. An aeration tank outlet is installed at the bottom of the aeration tank, and one end of the aeration tank outlet is connected to one end of the first outlet pipe. The air compressor uses oil-free compressed air to aerate the water, maintaining the air volume in the underground well water and the air-to-water ratio of the iron-containing underground well water at 0.1-0.2:1. The oxidation reaction takes place in the aeration tank for 2-5 minutes.

[0010] Preferably, the dosing device consists of a dosing tank, an electric mixer, and a metering pump. The electric mixer is installed on the dosing tank. The metering pump is connected to the inside of the metering pump through a second conduit. The outlet of the metering pump is connected to one end of the first outlet pipe to maintain the mass ratio of ferric chloride + total iron in groundwater to fluoride ions in high-fluoride, high-iron groundwater at 5:1, with a reaction time of 2 to 5 minutes.

[0011] Preferably, the concentration of fluoride in the high-fluoride, high-iron mine water is <10 mg / L.

[0012] This utility model provides a device for treating high-fluoride and high-iron mine water by reducing fluoride and iron content, which has the following beneficial effects: 1. This high-fluoride and high-iron mine water fluoride and iron removal treatment device can operate directly at room temperature without pretreatment steps such as hardening, turbidity removal, and pH adjustment. It can complete flocculation, iron removal, and fluoride removal within 10-15 minutes. After filtration, the resulting water is nearly neutral, clear, with fluoride content below 1 mg / L and iron content below 0.3 mg / L, meeting drinking water standards.

[0013] 2. The fluoride and iron co-reduction treatment device for high-fluoride and high-iron mine water has a low cost. The manganese sand does not require chemical regenerators for regeneration. It can be physically regenerated by backwashing and can be reused. The sludge produced in the backwash water is a solid waste and does not produce waste liquid or other waste, which is convenient for recycling and treatment and does not cause environmental pollution. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the aeration tank of this utility model; Figure 3 This is a schematic diagram of the internal structure of the reaction vessel of this utility model; Figure 4 This is a schematic cross-sectional view of the reaction vessel of this utility model; Figure 5 This is a schematic diagram of the internal structure of the manganese sand filter tank of this utility model; Figure 6 This is a schematic diagram of the process structure of this utility model.

[0015] In the diagram: 1. Aeration tank; 101. Air inlet; 102. Aeration pipe; 103. Aeration tank outlet; 2. Reaction tank; 201. Reaction tank inlet; 202. Chemical inlet; 203. First vertical flocculation grid reaction plate; 204. Second vertical flocculation grid reaction plate; 205. Grid; 206. Reaction tank outlet; 207. Reaction tank vent; 3. Manganese sand filter tank; 301. Manganese sand filter tank inlet; 302. Upper water distributor; 303. Lower water distributor; 304. Filter head; 305. Manganese sand filter tank outlet; 306, manganese sand; 307, manganese sand filter tank vent; 4, main inlet pipe; 5, first outlet pipe; 6, second outlet pipe; 7, third outlet pipe; 8, first guide pipe; 9, second guide pipe; 10, third guide pipe; 11, fourth guide pipe; 12, fifth guide pipe; 13, air inlet pipe; 14, main outlet pipe; 15, backwash water pump; 16, clean water tank; 17, air compressor; 18, dosing device; 1801, metering pump; 1802, dosing tank; 1803, electric mixer. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Please see Figures 1 to 6 This utility model provides a technical solution: a fluoride and iron co-reduction treatment device for high-fluoride and high-iron mine water, including an aeration tank 1, a reaction tank 2, and a manganese sand filter tank 3. The reaction tank 2 is located at the right end of the aeration tank 1, and the manganese sand filter tank 3 is located at the right end of the reaction tank 2. A clean water tank 16 is placed at the right end of the manganese sand filter tank 3. An air compressor 17 is placed at the front end of the aeration tank 1, and a dosing device 18 is placed at the right end of the air compressor 17. A backwash water pump 15 is placed at the left end of the clean water tank 16. A main water inlet pipe 4 is fixedly connected to the lower end of the aeration tank 1, and one end of the main water inlet pipe 4 is connected to the air compressor 17. A first water outlet pipe 5 is fixedly connected to the lower end of the aeration tank 1, and one end of the first water outlet pipe 5 is connected to the reaction tank 2. The bottom ends are connected together. The upper end of the reaction tank 2 is fixedly connected to the second water outlet pipe 6. The right end of the reaction tank 2 is fixedly connected to the reaction tank inlet 201. The reaction tank inlet 201 is connected to the outlet end of the metering pump 1801 through the first conduit 8. The inlet end of the metering pump 1801 is fixedly connected to the second conduit 9. One end of the second water outlet pipe 6 is connected to the top end of the manganese sand filter tank 3. The lower end of the manganese sand filter tank 3 is fixedly connected to the third water outlet pipe 7. One end of the third water outlet pipe 7 extends into the interior of the third water outlet pipe 7. One end of the backwash water pump 15 is fixedly connected to the fourth conduit 11. One end of the fourth conduit 11 extends into the interior of the clean water tank 16. The right side of the clean water tank 16 is fixedly connected to the main water outlet pipe 14.

[0018] The top of the inner cavity of the manganese sand filter tank 3 is provided with an upper water distributor 302, which is a fixed arched circular plate. The bottom of the inner cavity of the manganese sand filter tank 3 is fixedly connected with a lower water distributor 303, which is a fixed arched plate structure. Several filter heads 304 are detachably connected to the upper surface of the lower water distributor 303. Manganese sand 306 is placed on the lower water distributor 303, and the height of the manganese sand 306 is 1 to 1.5 meters. The top of the manganese sand filter tank 3 is provided with a manganese sand filter tank inlet 301, which is connected to the upper water distributor 302. One end of the manganese sand filter tank inlet 301 is fixedly connected with a fifth conduit 12.

[0019] The manganese sand filter tank 3 has a manganese sand filter tank outlet 305 on the lower side of the outer surface of the right end. A third conduit 10 is provided at one end of the manganese sand filter tank outlet 305. The right end of the third conduit 10 is connected to the backwash water pump 15. The backwash water pump 15 and the third conduit 10 are detachably connected. A fourth conduit 11 is provided at the right end of the backwash water pump 15. The backwash water pump 15 and the fourth conduit 11 are detachably connected. A third water outlet pipe 7 is connected to the upper end of the clean water tank 16. A manganese sand filter tank vent 307 is installed on the top of the manganese sand filter tank 3.

[0020] The first outlet pipe 5 is connected to the reaction tank inlet 201 installed on the reaction tank 2. A chemical inlet 202 is provided at the bottom of the reaction tank 2. A first vertical flocculation grid reaction plate 203 and a second vertical flocculation grid reaction plate 204 are installed inside the reaction tank 2, intersecting perpendicularly along the central axis. Both the first and second vertical flocculation grid reaction plates 203 and 204 are covered with a grid 205. A reaction tank outlet 206 is installed at the bottom of the reaction tank 2, and a chemical outlet 206 is installed at the top of the reaction tank 2. The reaction tank has an air vent 207. The first vertical flocculation grid reaction plate 203 and the second vertical flocculation grid reaction plate 204 are welded and fixed at the central axis position. The edges away from the first vertical flocculation grid reaction plate 203 and the second vertical flocculation grid reaction plate 204 are welded and fixed to the inside of the reaction tank 2. After the influent and the added agent are mixed, the water spirals upward and passes through the first vertical flocculation grid reaction plate 203 and the second vertical flocculation grid reaction plate 204 multiple times to the water outlet 206 of the reaction tank. The ferric chloride agent reacts with Fe(OH)3 in the water to form flocculation, which makes the flocs gradually increase in size, making it easier for the subsequent manganese sand filter to filter and remove them.

[0021] An air inlet pipe 13 is fixedly connected to the bottom of the aeration tank 1. One end of the air inlet pipe 13 is connected to the air inlet 101 installed on the side of the aeration tank 1. An aeration pipe 102 is fixedly connected to the top of the air inlet 101. One end of the air compressor 17 is connected to one end of the air inlet pipe 13. An aeration tank outlet 103 is installed at the bottom of the aeration tank 1. One end of the aeration tank outlet 103 is connected to one end of the first outlet pipe 5.

[0022] The dosing device 18 consists of a dosing tank 1802, an electric mixer 1803, and a metering pump 1801. The electric mixer 1803 is installed on the dosing tank 1802. The metering pump 1801 is connected to the inside of the metering pump 1801 through the second conduit 9. The outlet of the metering pump 1801 is connected to one end of the first outlet pipe 5.

[0023] In summary, this high-fluoride and high-iron mine water fluoride and iron removal treatment device, when it is needed to remove fluoride and iron from wastewater, injects wastewater into aeration tank 1 through the main inlet pipe 4. Air compressor 17 generates compressed air, which enters the air inlet 101 through the air inlet pipe 13, where aeration occurs. Groundwater enters the aeration tank 1 and mixes with the compressed air released from the aeration pipe 102, oxidizing ferrous iron to ferric iron. The groundwater then enters the reaction tank 2 through the first outlet pipe 5. In the flocculation process, ferric chloride is stored inside the dosing tank 1802. An electric mixer 1803 agitates the ferric chloride solution inside the tank 1802. A metering pump 1801 draws the ferric chloride solution from the tank 1802 through a second conduit 9. The outlet of the metering pump 1801 is injected into the reaction tank inlet 201 on the side wall of the reaction tank 2 through the first outlet pipe 5, causing the groundwater to mix with the ferric chloride. The mixture rises along the first vertical flocculation grid reaction plate 203 inside the reaction tank 2 and undergoes a flocculation reaction to produce flocs, thus removing fluoride. Ions are adsorbed within the flocs. Groundwater will then enter the manganese sand filter tank 3 through the second outlet pipe 6 for defluorination. Manganese sand 306 traps iron- and fluoride-containing flocs. The manganese dioxide in manganese sand 306 has more hydroxyl groups on its surface and a larger specific surface area, which can remove iron and fluoride ions from the groundwater. Product water flows out from the lower end of the manganese sand filter tank 3 and is introduced into the water surface inside the clear water tank 16 through the third outlet pipe 7. It is stored inside the clear water tank 16 for use by the backwash water pump 15. The final water flows out through the main outlet pipe 14 on the right side of the clear water tank 16. As the contact time of manganese sand 306 in the manganese sand filter tank 3 increases, the pore structure on the surface of the filter material will gradually be occupied by the adsorbed fluoride ions, and the adsorption capacity will gradually approach saturation. It is necessary to backwash the manganese sand. The backwash water pump 15 draws water out of the clear water tank 16 through the fourth conduit 11. The backwash water pump 15 injects water into the manganese sand filter tank 3 through the third conduit 10. The backwash water is discharged to the fluoride-iron co-fall device through the opened pneumatic valve and the fifth conduit 12. After sedimentation and separation of sludge, it is discharged into the environmental water body after meeting the standards.

[0024] In the above diagram, aeration first involves ensuring sufficient contact between the iron-containing groundwater and air, allowing oxygen from the air to dissolve in the water. Simultaneously, it removes a large amount of CO2 from the groundwater, raising the pH value to facilitate the chemical oxidation of ferrous iron. After aeration, the pH value of the groundwater is generally between 6.0 and 7.5. 2+ Oxidized to Fe 3+ It precipitates as Fe(OH)3.

[0025] Secondly, after aeration, adding ferric chloride can enhance the flocculation reaction. Specifically, in an alkaline environment, adding ferric iron forms Fe(OH)3 colloids, which can serve as the core of the flocs and promote the adsorption of suspended solids. Adding ferric chloride as a flocculant can rapidly increase the size of the flocs in a short period of time. In addition, due to the large specific surface area of ​​flocs, colloidal particles can also be adsorbed on the surface of flocs during the collision process to form flocs. Therefore, adding ferric chloride can increase the density and growth rate of flocs, shorten the flocculation reaction time, accelerate the treatment efficiency of high-fluoride and high-iron underground well water, and also reduce the volume of the reactor.

[0026] Finally, manganese sand is effective for fluoride removal because the manganese dioxide in manganese sand has many hydroxyl groups on its surface, resulting in a large specific surface area. Manganese sand has the highest fluoride removal efficiency, with a maximum removal rate of 95%. Even after the manganese sand filter has been running for 48 hours, the fluoride removal rate can still reach 90%, and the decline in fluoride removal efficiency is relatively slow. As the contact time of manganese sand filtration increases, the pore structure on the surface of the manganese sand filter media is gradually occupied by the adsorbed Fe(OH)3 colloids and fluoride ions. The adsorption capacity gradually approaches saturation. Increasing the filter layer height of the manganese sand filter is equivalent to increasing the filter layer thickness, which directly increases the surface area available for fluoride ion adsorption by the manganese sand filter media particles. Therefore, it can directly improve the adsorption efficiency and fluoride ion removal rate of the manganese sand filter. Fluoride removal by manganese sand filtration involves the adsorption of fluoride ions by newly generated Fe(OH)3 colloids from iron ions. The active groups on the surface of MnO2 in the manganese sand filter media adsorb Fe(OH)3 colloids and fluoride ions. As the filtration time extends, the pore structure on the surface of the filter media is gradually occupied by the adsorbed Fe(OH)3 colloids and fluoride ions, and the adsorption capacity of the manganese sand filter media gradually approaches saturation. If the quality of the produced water fails to meet the standards after 48 hours, the manganese sand filter media should be backwashed after 48 hours of operation to meet the water quality requirements.

[0027] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The installation methods between equipment are also the same as conventional installation methods in the prior art. For example, the two ends of the shaft-shaped parts are connected by bearings, the connection position of the valve component is provided with anti-leakage rubber strips, the outside of the threaded rod or screw is provided with dust cover, and the equipment can be driven by either built-in battery or external power supply. The control method is automatic control by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, this utility model will not explain the control method and circuit connection in detail. The external controller mentioned in the specification can play a control role for the electrical components mentioned in this article, and the external controller is a conventional known device.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for reducing fluoride and iron in high-fluoride and high-iron mine water, comprising an aeration tank (1), characterized in that: The aeration tank (1), reaction tank (2), and manganese sand filter tank (3) are described. The reaction tank (2) is located at the right end of the aeration tank (1), and the manganese sand filter tank (3) is located at the right end of the reaction tank (2). A clear water tank (16) is placed at the right end of the manganese sand filter tank (3). An air compressor (17) is placed at the front end of the aeration tank (1), and a dosing device (18) is placed at the right end of the air compressor (17). A backwash water pump (15) is placed at the left end of the clear water tank (16). A main water inlet pipe (4) is fixedly connected to the lower end of the aeration tank (1), and one end of the main water inlet pipe (4) is connected to the air compressor (17). A first water outlet pipe (5) is fixedly connected to the lower end of the aeration tank (1), and one end of the first water outlet pipe (5) is connected to the bottom end of the reaction tank (2). The upper end of the reaction tank (2) is described. A second water outlet pipe (6) is fixedly connected to the right end of the reaction tank (2), and a reaction tank inlet (201) is fixedly connected to the right end of the reaction tank (2). The reaction tank inlet (201) is connected to the outlet of the metering pump (1801) through the first conduit (8). A second conduit (9) is fixedly connected to the inlet of the metering pump (1801). One end of the second water outlet pipe (6) is connected to the top of the manganese sand filter tank (3). A third water outlet pipe (7) is fixedly connected to the lower end of the manganese sand filter tank (3). One end of the third water outlet pipe (7) extends into the interior of the third water outlet pipe (7). A fourth conduit (11) is fixedly connected to one end of the backwash water pump (15). One end of the fourth conduit (11) extends into the interior of the clear water tank (16). A main water outlet pipe (14) is fixedly connected to the right side of the clear water tank (16).

2. The fluoride and ferric chloride treatment device for high-fluoride and high-ferric mine water according to claim 1, characterized in that: The manganese sand filter tank (3) has an upper water distributor (302) at the top of its inner cavity. The upper water distributor (302) is a fixed arched circular plate. The manganese sand filter tank (3) has a lower water distributor (303) fixedly connected to the bottom of its inner cavity. The lower water distributor (303) is a fixed arched plate structure. Several filter heads (304) are detachably connected to the upper surface of the lower water distributor (303). Manganese sand (306) is placed on the lower water distributor (303). The manganese sand filter tank (3) has a manganese sand filter tank inlet (301) installed at the top of its inner cavity. The manganese sand filter tank inlet (301) is connected to the upper water distributor (302). A fifth conduit (12) is fixedly connected to one end of the manganese sand filter tank inlet (301).

3. The fluoride and ferric chloride treatment device for high-fluoride and high-ferric mine water according to claim 1, characterized in that: The manganese sand filter tank (3) has a manganese sand filter tank outlet (305) on the lower side of the outer surface of the right end. A third conduit (10) is provided at one end of the manganese sand filter tank outlet (305). The right end of the third conduit (10) is connected to the backwash water pump (15). The backwash water pump (15) is detachably connected to the third conduit (10). A fourth conduit (11) is provided at the right end of the backwash water pump (15). The backwash water pump (15) is detachably connected to the fourth conduit (11). A third water outlet pipe (7) is connected to the upper end of the clean water tank (16). A manganese sand filter tank vent (307) is installed on the top of the manganese sand filter tank (3).

4. The fluoride and ferric chloride treatment device for high-fluoride and high-ferric mine water according to claim 1, characterized in that: The first water outlet pipe (5) is connected to the reaction tank inlet (201) installed on the reaction tank (2). The bottom of the reaction tank (2) is provided with a drug inlet (202). The reaction tank (2) is equipped with a first vertical flocculation grid reaction plate (203) and a second vertical flocculation grid reaction plate (204). The first vertical flocculation grid reaction plate (203) and the second vertical flocculation grid reaction plate (204) are located inside the reaction tank (2) and intersect perpendicularly along the central axis. The surfaces of the first vertical flocculation grid reaction plate (203) and the second vertical flocculation grid reaction plate (204) are both equipped with grids (205). The bottom of the reaction tank (2) is equipped with a reaction tank outlet (206), and the top of the reaction tank (2) is equipped with a reaction tank vent (207).

5. The fluoride and ferric chloride treatment device for high-fluoride and high-ferric mine water according to claim 1, characterized in that: An air inlet pipe (13) is fixedly connected to the bottom of the aeration tank (1). One end of the air inlet pipe (13) is connected to an air inlet (101) installed on the side of the aeration tank (1). An aeration pipe (102) is fixedly connected to the top of the air inlet (101). One end of the air compressor (17) is connected to one end of the air inlet pipe (13). An aeration tank outlet (103) is installed at the bottom of the aeration tank (1). One end of the aeration tank outlet (103) is connected to one end of the first water outlet pipe (5).

6. The fluoride and ferric chloride treatment device for high-fluoride and high-ferric mine water according to claim 1, characterized in that: The dosing device (18) consists of a dosing tank (1802), an electric mixer (1803) and a metering pump (1801). The electric mixer (1803) is installed on the dosing tank (1802). The metering pump (1801) is connected to the inside of the metering pump (1801) through the second conduit (9). The outlet of the metering pump (1801) is connected to one end of the first outlet pipe (5).

Images