Magnetic loading coagulation separation deep defluorination system

Abstract

The utility model provides a magnetic loading coagulation separation deep defluorination system, and aims to solve the problems of large occupied area, large dosage, poor precipitation efficiency and the like of the conventional defluorination device. The system comprises a fluorine removal reaction box which is communicated through a pipeline and is used for carrying out reaction on an added fluorine removal agent and fluorine-containing wastewater so as to primarily remove fluorine; the magnetic coagulation reaction box is used for further reacting the added coagulant, coagulant aid and magnetic medium with the wastewater subjected to primary fluorine removal to form magnetic flocs; the magnetic separation box is used for carrying out solid-liquid separation on the magnetic floc and the water body in a magnetic disk active adsorption mode and deeply removing fluorine; the magnetic medium recovery device is used for conveying magnetic flocs and recovering and circulating magnetic media; the sludge treatment device is used for storing, dehydrating and discharging the sludge generated by the magnetic medium recovery device; and the dosing device is used for preparing and adding a fluorine removal agent, a coagulant, a coagulant aid, a magnetic medium and a sludge conditioner. The defluorination device is small in occupied area, capable of saving dosage and good in defluorination effect.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a magnetic loading coagulation separation deep defluorination system. Background Technology

[0002] The semiconductor, photovoltaic, and electroplating industries generate large amounts of fluoride-containing wastewater during industrial production processes. High concentrations of fluoride pose a threat to the natural environment and human health. According to the "Integrated Wastewater Discharge Standard" GB8978-1996, the first-class discharge limit for fluoride in wastewater is 10 mg / L. With the increase in fluoride emissions and the decrease in water body capacity, several new standards have been introduced. For example, the "Surface Water Environmental Quality Standard" GB3838-2002 stipulates that the fluoride limit for Class III water bodies is 1 mg / L, and for Class IV water bodies it is 1.5 mg / L; the "Pollutant Discharge Standard for Urban Wastewater Treatment Plants" in Beijing, Tianjin, and Jiangsu Province sets the limit at 1.5 mg / L; and the "Integrated Discharge Standard for Water Pollutants in Shandong Province" sets the fluoride limit at 3 mg / L in general protection areas and 2 mg / L in key areas, etc.

[0003] In most past research and applications of wastewater defluorination, the main focus has been on how to reduce the fluoride content in fluoride-containing wastewater to around 10 mg / L. In existing devices, in order to achieve a fluoride content of less than 10 mg / L, large doses of defluorinating agents are often added to achieve deep defluorination. However, this equipment has problems such as large dosage and poor sedimentation efficiency.

[0004] Therefore, it is of great significance to study a defluorination system with low dosage and good precipitation efficiency. Utility Model Content

[0005] The purpose of this invention is to solve the technical problems existing in the current device. By combining the defluorination equipment with magnetic coagulation separation technology, after the initial defluorination in the defluorination equipment, magnetic flocs are formed through magnetic coagulation reaction. The magnetic flocs are actively adsorbed and retrieved by the magnetic force of the magnetic separator, and solid-liquid separation is carried out to achieve deep defluorination. The defluorination system of this invention has the advantages of low dosage, good precipitation efficiency and excellent defluorination effect.

[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution:

[0007] A magnetically loaded coagulation separation deep defluorination system, characterized in that it includes a pipeline connection:

[0008] The defluorination reaction tank is used to react the added defluorinating agent with the fluoride-containing wastewater for preliminary defluorination.

[0009] The magnetic coagulation reaction tank is used to further react the added coagulant, coagulant aid and magnetic medium with the wastewater that has undergone preliminary defluorination to form magnetic flocs;

[0010] The magnetic separator is used to separate magnetic flocs from water through active adsorption by a magnetic disk, achieving deep defluorination.

[0011] A magnetic media recovery device is used for the conveying, recovery, and circulation of magnetic flocs.

[0012] A sludge treatment device is used to store, dewater, and discharge the sludge generated by the magnetic medium recovery device.

[0013] The dosing device is used for the preparation and dosing of defluorinating agents, coagulants, coagulant aids, magnetic media, and sludge conditioners.

[0014] As a preferred technical solution:

[0015] Optionally, the defluorination reaction chamber includes a first water inlet and a first water outlet on the chamber body, and a differential speed mixer installed inside the chamber body, with a defluorination agent dosing pipe connected to the first water inlet.

[0016] Optionally, the magnetic coagulation reaction tank includes a baffled mixing reaction zone, a coagulation reaction zone, and a flocculation reaction zone that are sequentially connected along the wastewater treatment flow direction. A second water inlet is provided on the tank body of the magnetic coagulation reaction tank below the baffled mixing reaction zone, and a second water outlet is provided on the tank body of the magnetic coagulation reaction tank above the flocculation reaction zone. The second water inlet and the first water outlet are connected through a pipe.

[0017] Optionally, a coagulant dosing pipe is connected to the second inlet, a magnetic medium dosing pipe is connected above the coagulation reaction zone, and a coagulant aid dosing pipe is connected to the inlet of the flocculation reaction zone.

[0018] The baffle-type mixing reaction zone is equipped with multiple spaced baffles to form tortuous flow channels and enhance mixing intensity;

[0019] A coagulation agitator is installed in the coagulation reaction zone, including a coagulation agitation shaft and a guide tube, wherein the coagulation agitation shaft is located inside the guide tube;

[0020] A flocculation agitator is installed in the flocculation reaction zone. The flocculation agitator is a differential speed agitator, which realizes multi-level intensity flocculation conditions in the same tank.

[0021] Optionally, the differential mixer includes a motor, a stirring shaft, and multiple sets of blades arranged along the axial direction of the stirring shaft, wherein the length and / or rotational speed of the blades located on the lower side are greater than those of the blades on the upper side.

[0022] Optionally, the magnetic separation box includes a third water inlet, a third water outlet, a magnetic mud outlet, and a disk separator installed inside the box. The disk separator includes a disk assembly, scraper bars, unloading device, planer bar, and conveying device, with the purpose of separating the magnetic flocs into solid and liquid phases by gravity sedimentation.

[0023] Optionally, the magnetic media recovery device includes a magnetic recovery machine and a magnetic sludge pump. The magnetic recovery machine is connected to the magnetic separation tank via the magnetic sludge pump. The magnetic recovery machine is connected to the magnetic coagulation reaction tank via the magnetic media addition pipe. The magnetic sludge pump transports the magnetic sludge from the magnetic separation tank to the magnetic recovery machine. Under the action of the magnetic recovery machine, the magnetic media and sludge are separated. The separated magnetic media returns to the magnetic mixing reaction zone in the magnetic coagulation reaction tank, realizing the recycling of the magnetic media. The sludge then enters the sludge tank.

[0024] Optionally, the sludge treatment device includes a sludge tank, a sludge pump, a sludge dewatering machine, a sludge conveying equipment, and a sludge conditioner preparation and dosing device connected in sequence by pipelines.

[0025] Optionally, the dosing device includes a defluorinating agent storage and dosing device, a coagulant preparation and dosing device, and a coagulant aid preparation and dosing device.

[0026] Optionally, the defluorinating agent storage and dosing device is connected to the defluorinating agent dosing pipeline, the coagulant preparation and dosing device is connected to the coagulant dosing pipeline, and the coagulant aid preparation and dosing device is connected to the coagulant aid dosing pipeline.

[0027] Compared with the prior art, the beneficial effects of this utility model are:

[0028] 1. The magnetic loading coagulation separation deep defluorination system of this utility model achieves the effect of deep defluorination with low dosage by using the defluorination reaction of the defluorination reaction box and the deep defluorination of the magnetic coagulation reaction box and the magnetic separation box.

[0029] 2. The magnetic loading coagulation separation deep defluorination system of this utility model adopts a magnetic coagulation separation device in the deep defluorination stage. With magnetic media as the core, it enhances the ability of flocculation and binding. Under the action of coagulant (PAC) and flocculant (PAM), pollutants and magnetic powder are agglomerated to form large flocs with a compact structure. Then, under the action of the high magnetic field force of the magnetic separator, the magnetic flocs are actively adsorbed and scooped up to carry out solid-liquid separation and purify the water. The separated magnetic flocs are recycled by the magnetic recovery machine to recover the magnetic media. The separated sludge is treated by the sludge treatment system and then transported off-site. The entire system has good separation efficiency.

[0030] 3. The magnetic loading coagulation separation deep defluorination system of this utility model combines a defluorination device with a magnetic coagulation separation device, which can improve the efficiency of defluorination when the defluorination device is used alone. In the deep defluorination stage, no defluorinating agent is used. Instead, magnetic coagulation separation technology is used for defluorination. Therefore, the entire system reduces the amount of defluorinating agent used, reduces sludge production, and achieves the purpose of efficient deep defluorination.

[0031] 4. The magnetic loading coagulation separation deep defluorination system of this utility model can be integrated among its various devices to form an integrated equipment, reducing the floor space required. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of the system of this utility model;

[0034] Figure 2 This is a schematic diagram of the defluorination reaction chamber in the system of this utility model;

[0035] Figure 3 This is a schematic diagram of the magnetic coagulation reaction chamber in the system of this utility model;

[0036] Figure 4 This is a schematic diagram of the magnetic separation box in the system of this utility model;

[0037] Figure 5 and Figure 6 This is a schematic diagram of the disk separator in the system of this utility model;

[0038] Figure 7 This is a schematic diagram of the magnetic medium recovery device in the system of this utility model;

[0039] Figure 8 This is a schematic diagram of the sludge treatment device in the system of this utility model;

[0040] Figure label:

[0041] 1-Defluorination reaction chamber; 101-First water inlet; 102-First water outlet; 103-Differential speed mixer; 104-Defluorination agent dosing pipeline;

[0042] 2-Magnetic coagulation reaction chamber; 201-Mixing reaction zone; 202-Coagulation reaction zone; 203-Flocculation reaction zone; 204-Second inlet; 205-Second outlet; 206-Coagulant dosing pipe; 207-Magnetic media dosing pipe; 208-Coagulant aid dosing pipe; 209-Break plate; 210-Coagulation agitator; 2101-Coagulation agitator shaft; 2102-Guide cylinder; 211-Flocculation agitator; 2111-Motor; 2112-Agitator shaft; 2113-Blade;

[0043] 3-Magnetic Separation Box; 301-Third Inlet; 302-Third Outlet; 303-Magnetic Sludge Outlet; 304-Disk Separator; 3041-Disk Assembly; 3042-Slag Scraper; 3043-Slag Discharge Device; 3044-Shaving Blade; 3045-Slag Conveying Device;

[0044] 4-Magnetic medium recovery device; 401-Magnetic recovery machine; 402-Magnetic mud pump;

[0045] 5-Sludge treatment device; 501-Sludge tank; 502-Sludge pump; 503-Sludge dewatering machine; 504-Sludge conveying equipment; 505-Sludge conditioner preparation and dosing device;

[0046] 6-Dosing device; 601-Defluorinating agent storage and dosing device; 602-Coagulant preparation and dosing device; 603-Coagulant aid preparation and dosing device. Detailed Implementation

[0047] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0048] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to 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 utility model.

[0049] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0053] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0054] This utility model embodiment provides a magnetically loaded coagulation separation deep defluorination system, including a defluorination reaction tank 1, a magnetic coagulation reaction tank 2, a magnetic separation tank 3, a magnetic media recovery device 4, a sludge treatment device 5, and a dosing device 6, all connected by pipelines. Figure 1 As shown.

[0055] in:

[0056] The defluorination reaction tank 1 is used to react the added defluorinating agent with fluoride-containing wastewater for preliminary defluorination. The defluorination reaction tank 1 includes a first inlet 101, a first outlet 102, and a differential speed mixer 103 installed inside the tank. A defluorinating agent dosing pipe 104 is connected to the first inlet 101, and the other end of the defluorinating agent dosing pipe 104 is connected to a defluorinating agent storage and dosing device 601. Figure 2 As shown, under the action of a differential speed mixer, the defluorinating agent and fluoride-containing wastewater enhance the formation rate of flocs between fluorides and the defluorinating agent, thereby increasing the adsorption efficiency of impurities such as fluorides in the wastewater.

[0057] The magnetic coagulation reaction tank 2 is used to further react the added coagulant, coagulant aid, and magnetic medium with the preliminarily defluorinated wastewater to form magnetic flocs. The magnetic coagulation reaction tank includes a baffle-type mixing reaction zone 201, a coagulation reaction zone 202, and a flocculation reaction zone 203, which are sequentially connected along the wastewater treatment flow direction. A second inlet 204 is located on the tank body of the magnetic coagulation reaction tank 2, near the lower part of the baffle-type mixing reaction zone 201, and a second outlet 205 is located on the tank body of the magnetic coagulation reaction tank 2, near the upper part of the flocculation reaction zone 203. The second inlet 204 is connected to the defluorination treatment wastewater. The first outlet 102 of the fluoride reaction tank 1 is connected via a pipeline to further fluoride removal and purification of the incoming water. A coagulant dosing pipeline 206 is connected to the second inlet 204, with the other end of the pipeline connected to a coagulant preparation and dosing device 602. A magnetic media dosing pipeline 207 is connected above the coagulation reaction zone 202, with the other end connected to a magnetic recovery machine 401. A coagulant aid dosing pipeline 208 is connected to the inlet of the flocculation reaction zone 203, with the other end connected to the coagulant aid preparation and dosing device 603. Figure 3 As shown; the baffle-type mixing reaction zone 201 is equipped with multiple spaced baffles 209 to form a tortuous flow channel; a coagulation agitator 210 is installed in the coagulation reaction zone 202, including a coagulation agitator shaft 2101 and a guide tube 2102, with the coagulation agitator shaft 2101 located inside the guide tube 2102; a flocculation agitator 211 is installed in the flocculation reaction zone 203, which is a differential speed agitator, the same as the one in the defluorination reaction box 1, including a motor 2111, an agitator shaft 2112 and multiple sets of blades 2113 arranged along the axial direction of the agitator shaft, wherein the length and / or rotation speed of the blades located on the lower side are greater than those of the blades on the upper side.

[0058] Magnetic separation box 3 is used for solid-liquid separation of magnetic flocs and water through active magnetic disk adsorption, achieving deep defluorination. Magnetic separation box 3 includes a third inlet 301, a third outlet 302, a magnetic mud outlet 303, and a magnetic disk separator 304 installed inside the box. Figure 4 As shown; the disk separator includes a disk assembly 3041, a scraper bar 3042, a slag discharge device 3043, a planer bar 3044, and a slag conveying device 3045, as follows. Figure 5 and 6 As shown.

[0059] Magnetic media recovery device 4 is used for conveying, recovering, and circulating magnetic flocs; the magnetic media recovery device 4 includes a magnetic recovery machine 401 and a magnetic mud pump 402, the magnetic recovery machine 401 and the magnetic separation box 3 are connected through the magnetic mud pump 402, such as... Figure 7 As shown, there are two magnetic mud pumps 402, connected in series, with their inlets connected to the magnetic mud outlet 303 of the magnetic separation tank 3 via pipes. One magnetic mud pump sends the magnetic mud separated by the magnetic separator to the magnetic recovery machine. The magnetic recovery machine connects the separated magnetic medium to the magnetic coagulation reaction tank via a magnetic medium dosing pipe for recycling in the magnetic coagulation sedimentation process. The other magnetic mud pump returns the water containing a small amount of sludge separated by the magnetic separator to the magnetic coagulation reaction tank 2 for further purification treatment, such as... Figure 1 As shown.

[0060] Sludge treatment device 5 is used to store, dewater, and discharge the sludge generated by the magnetic media recovery device. Sludge treatment device 5 includes a sludge tank 501, a sludge pump 502, a sludge dewatering machine 503, a sludge conveying device 504, and a sludge conditioner preparation and dosing device 505, connected in sequence by pipelines. Figure 8 As shown;

[0061] The dosing device 6 is used for the preparation and dosing of defluorinating agents, coagulants, coagulant aids, magnetic media, and sludge conditioners. The dosing device 6 includes a defluorinating agent storage and dosing device 601, a coagulant preparation and dosing device 602, and a coagulant aid preparation and dosing device 603. The defluorinating agent storage and dosing device 601 is connected to the defluorinating agent dosing pipeline 104, the coagulant preparation and dosing device 602 is connected to the coagulant dosing pipeline 205, and the coagulant aid preparation and dosing device 603 is connected to the coagulant aid dosing pipeline 207. Figure 1 As shown.

[0062] In use, the wastewater that has undergone preliminary defluorination in the defluorination reaction tank 1 further enters the baffled mixing reaction zone 201 through the second inlet 204. The control valves of the coagulant preparation and dosing device 602, the coagulant aid preparation and dosing device 606, and the magnetic powder recovery machine are opened. The coagulant enters the baffled mixing reaction zone 201 through the coagulant dosing pipe 206. After the coagulant and fluoride-containing wastewater are fully mixed under the action of multiple baffles, the wastewater enters the coagulation reaction zone 202. Further, under the action of the magnetic powder, fluorides, particulate impurities, etc., in the wastewater agglomerate with the magnetic powder, and then flow further into the flocculation reaction zone 203. Under the influence of the magnetic field, larger magnetic flocs are formed and flow out of the second outlet 205 with the water. They then flow into the magnetic separation tank 3 through the third inlet 301. A magnetic separator is installed in the magnetic separation tank. Under the action of a high-strength magnetic field, the magnetic separator actively adsorbs and removes the magnetic flocs, performing solid-liquid separation. The solid material, magnetic mud containing magnetic media, is pumped to the magnetic recovery machine by the magnetic mud pump 402. The magnetic material on the magnetic drum in the magnetic recovery machine adsorbs and recovers the magnetic media from the magnetic mud. The magnetic media then enters the coagulation reaction zone 202 through the magnetic media addition pipe 207 for recycling. The sludge separated by the magnetic recovery machine further enters the sludge treatment device 5 for dewatering. The purified water after treatment by the magnetic separator flows out through the third outlet 302, thus achieving deep defluorination.

[0063] This invention relates to a magnetic loading coagulation separation deep defluorination system. The various devices can be integrated to form a single unit, reducing the floor space required and the amount of defluorinating agents used. It has good sedimentation efficiency and excellent defluorination effect, and can be widely used.

Claims

1. A magnetically loaded coagulation separation deep defluorination system, characterized in that, Including pipe connections: The defluorination reaction tank is used to react the added defluorinating agent with the fluoride-containing wastewater for preliminary defluorination. The magnetic coagulation reaction tank is used to further react the added coagulant, coagulant aid and magnetic medium with the wastewater that has undergone preliminary defluorination to form magnetic flocs; The magnetic separator is used to separate magnetic flocs from water through active adsorption by a magnetic disk, achieving deep defluorination. A magnetic media recovery device is used for the conveying, recovery, and circulation of magnetic flocs. A sludge treatment device is used to store, dewater, and discharge the sludge generated by the magnetic medium recovery device. The dosing device is used for the preparation and dosing of defluorinating agents, coagulants, coagulant aids, magnetic media, and sludge conditioners.

2. The magnetically loaded coagulation separation deep defluorination system according to claim 1, characterized in that: The defluorination reaction chamber includes a first water inlet and a first water outlet on the chamber body, and a differential speed mixer installed inside the chamber body. A defluorination agent dosing pipe is connected to the first water inlet.

3. The magnetically loaded coagulation separation deep defluorination system according to claim 2, characterized in that: The magnetic coagulation reaction tank includes a baffled mixing reaction zone, a coagulation reaction zone, and a flocculation reaction zone that are connected sequentially along the wastewater treatment flow direction. A second water inlet is provided on the tank body of the magnetic coagulation reaction tank below the baffled mixing reaction zone, and a second water outlet is provided on the tank body of the magnetic coagulation reaction tank above the flocculation reaction zone. The second water inlet and the first water outlet are connected by a pipe.

4. The magnetically loaded coagulation separation deep defluorination system according to claim 3, characterized in that: A coagulant dosing pipe is connected to the second inlet, a magnetic medium dosing pipe is connected above the coagulation reaction zone, and a coagulant aid dosing pipe is connected to the inlet of the flocculation reaction zone. The baffle-type mixing reaction zone is equipped with multiple spaced baffles to form a tortuous flow channel; A coagulation agitator is installed in the coagulation reaction zone, including a coagulation agitation shaft and a guide tube, wherein the coagulation agitation shaft is located inside the guide tube; A flocculation agitator is installed in the flocculation reaction zone, and the flocculation agitator is a differential speed agitator.

5. A magnetically loaded coagulation separation deep defluorination system according to claim 2 or 4, characterized in that: The differential mixer includes a motor, a mixing shaft, and multiple sets of blades arranged along the axial direction of the mixing shaft, wherein the length and / or rotational speed of the blades located on the lower side are greater than those of the blades located on the upper side.

6. The magnetically loaded coagulation separation deep defluorination system according to claim 1, characterized in that: The magnetic separator includes a third water inlet, a third water outlet, a magnetic mud outlet, and a magnetic disk separator installed on the box body. The magnetic disk separator includes a magnetic disk assembly, a scraper bar, a slag discharge device, a planer bar, and a slag conveying device.

7. The magnetically loaded coagulation separation deep defluorination system according to claim 4, characterized in that, The magnetic medium recovery device includes a magnetic recovery machine and a magnetic mud pump. The magnetic recovery machine is connected to the magnetic separation box through the magnetic mud pump. The magnetic recovery machine is connected to the magnetic coagulation reaction box through the magnetic medium addition pipeline.

8. The magnetically loaded coagulation separation deep defluorination system according to claim 1, characterized in that, The sludge treatment device includes a sludge tank, a sludge pump, a sludge dewatering machine, a sludge conveying equipment, and a sludge conditioner preparation and dosing device, all connected in sequence by pipelines.

9. The magnetically loaded coagulation separation deep defluorination system according to claim 4, characterized in that, The dosing device includes a defluorinating agent storage and dosing device, a coagulant preparation and dosing device, and a coagulant aid preparation and dosing device.

10. A magnetically loaded coagulation separation deep defluorination system according to claim 9, characterized in that, The defluorinating agent storage and dosing device is connected to the defluorinating agent dosing pipeline, the coagulant preparation and dosing device is connected to the coagulant dosing pipeline, and the coagulant aid preparation and dosing device is connected to the coagulant aid dosing pipeline.

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