Combined filtering device for removing fluorine and thallium from beneficiation wastewater

Abstract

The utility model relates to the technical field of beneficiation wastewater treatment, and discloses a beneficiation wastewater fluorine and thallium removal combined filtering device which comprises a sedimentation tank, a protective shell is fixedly connected to the left side of the outer wall of the sedimentation tank, a protective cover is fixedly connected to the outer wall of the protective shell, and a first rotating rod is rotationally connected to the inner wall of the protective shell; the outer wall of the first rotating rod is fixedly connected with a wind power fan, the outer wall of the first rotating rod is fixedly connected with a large gear, the inner wall of the protective shell is rotatably connected with a worm, the outer wall of the worm is fixedly connected with a small gear, and the inner wall of the protective cover is rotatably connected with a working rod. And the outer wall of the working rod is fixedly connected with a first worm gear and a stirring fan. According to the utility model, the wind power fan is used for collecting wind power, and the gear ratio is used for amplifying the wind power to drive the worm gear, the worm and the stirring and cleaning assembly to rotate, so that a filtering agent can fully contact and react with wastewater in the filtering process, meanwhile, automatic cleaning is performed, and the filtering efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mineral processing wastewater treatment technical field especially relates to a kind of filtering device of fluorine and thallium removal of mineral processing wastewater is used in conjunction. BACKGROUND

[0002] Mineral processing operation is an important link of mineral resources development and utilization, however, a large amount of wastewater will be generated in the process of mineral processing. These mineral processing wastewater is complex in composition, usually containing heavy metal ions, suspended solid particles, residual mineral processing reagents and harmful substances such as fluorine and thallium. If directly discharged into the environment, the mineral processing wastewater will cause serious pollution to soil, surface water, groundwater and other ecological balance and human health.

[0003] With the increasingly stringent environmental requirements, the treatment of mineral processing wastewater becomes crucial. Therefore, the wastewater needs to be transported to the filtering device, and the harmful substances such as fluorine and thallium are filtered out before the next step of discharge and utilization.

[0004] The traditional mineral processing wastewater filtering device discharges wastewater into a sedimentation tank and adds a large amount of filter such as lime, uses a motor or manual stirring to mix the wastewater with the filter fully, and then generates a difficult-to-dissolve precipitate after chemical reaction to filter out heavy metal ions such as fluorine and thallium. In remote areas and other areas with strong wind, due to the imperfect power infrastructure, unstable power supply or even lack of power supply, the filtering equipment relying on manpower and power cannot guarantee normal operation, which seriously affects the treatment effect and efficiency of mineral processing wastewater. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a kind of filtering device of fluorine and thallium removal of mineral processing wastewater is used in conjunction, to improve the problem of low filtering efficiency caused by imperfect power facilities in mineral processing plants in areas with strong wind.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a kind of filtering device of fluorine and thallium removal of mineral processing wastewater is used in conjunction, including sedimentation tank, the outer wall left side of the sedimentation tank is fixedly connected with protective shell, the outer wall of the protective shell is fixedly connected with protective cover, the inner wall of the protective shell is rotatably connected with first rotary rod, the outer wall of the first rotary rod is fixedly connected with wind fan, the outer wall of the first rotary rod is fixedly connected with large gear, the inner wall of the protective shell is rotatably connected with worm, the outer wall of the worm is fixedly connected with small gear, the inner wall of the protective cover is rotatably connected with working rod, the outer wall of the working rod is fixedly connected with first worm wheel and stirring fan, the outer wall bottom end of the working rod is fixedly connected with a plurality of scraping rods, the upper surface of the scraping rod is rotatably connected with cleaning rod, the inner wall of the protective cover is provided with feeding assembly.

[0007] Preferably, the feeding assembly comprises a feeding pipe fixedly connected and penetrating through the inner wall of the protective cover, a feeding table fixedly connected to the top end of the feeding pipe, a sieve plate fixedly connected to the inner wall of the feeding pipe, a third rotating rod rotatably connected to the inner wall of the sieve plate, a plurality of push plates fixedly connected to the outer wall of the third rotating rod, a idler wheel fixedly connected to the outer wall of the third rotating rod, a second rotating rod rotatably connected to the inner wall of the protective cover, and a second worm gear and a driving wheel fixedly connected to the outer wall of the second rotating rod.

[0008] Preferably, the upper surface of the sedimentation tank is fixedly connected with a water inlet table, the inner wall of the sedimentation tank is fixedly connected with a water distribution pipe, the inner wall of the sedimentation tank is fixedly connected and penetrates a rapid water outlet pipe, the other end of the rapid water outlet pipe is fixedly connected with a collection table, the inner wall of the sedimentation tank is fixedly connected and penetrates a circulation pipe, the outer wall of the circulation pipe is fixedly connected with a cross-flow filtration table, a water pump is installed on the outer wall of the circulation pipe, the inner wall of the cross-flow filtration table is fixedly connected and penetrates a water outlet pipeline, and the other end of the water outlet pipeline is fixedly connected to the inner wall of the collection table.

[0009] Preferably, one end of the worm is rotatably connected to the inner wall of the protective cover, the outer wall of the worm is provided with a plurality of threads, the worm is meshingly connected with the first worm gear, and the bottom end of the working rod is rotatably connected to the inner wall of the sedimentation tank.

[0010] Preferably, the bottom end of the scraping rod is provided with a plurality of grooves, the length of the scraping rod is equal to the radius of the sedimentation tank, the lower surface of the scraping rod is slidably connected to the inner wall of the sedimentation tank, and the outer wall of the cleaning rod is slidably connected to the inner wall of the sedimentation tank.

[0011] Preferably, the second worm gear is meshingly connected with the worm, the outer wall of the second rotating rod and the driving wheel is sleeved with a belt, the inner wall of the feeding pipe is provided with a plurality of working grooves, the belt is slidably connected and penetrates the working grooves, the inner wall of the sieve plate is provided with a plurality of discharge holes, and the lower surface of the push plate is slidably connected to the upper surface of the sieve plate.

[0012] Preferably, the inner wall of the water inlet table is fixedly connected with a filter screen, the inner wall bottom end of the water distribution pipe is provided with a plurality of water distribution grooves, the one end of the rapid water outlet pipe and the circulation pipe is fixedly connected with a filter screen, and the inner walls of the rapid water outlet pipe, the circulation pipe and the water outlet pipeline are installed with a plurality of valves.

[0013] Preferably, the inner wall of the cross-flow filtration table is fixedly connected with a filter membrane, and the circulation pipe is connected through the inner wall of the cross-flow filtration table.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model discloses a wind fan is used for collecting wind power, and the gear ratio is used for amplifying the wind power to drive the rotation of the worm gear and the stirring and cleaning assembly, so that the filter can be in full contact reaction with the waste water during the filtering process, and the automatic cleaning is carried out simultaneously, manpower is saved, and the filtering efficiency is increased.

[0016] 2. The utility model discloses a worm gear and a belt drive are used to drive the rotation of the push plate by wind power, so that the process that the filter enters the sedimentation tank is sustained, stable and slow, the fullness of the filtering reaction is guaranteed, and the filtering efficiency is further increased.

[0017] 3. The utility model discloses a cross-flow filter table and a water pump are added outside the sedimentation tank to make the waste water be subjected to secondary filtering treatment, the water distribution pipe is used to make the waste water enter the sedimentation tank uniformly, and the filtering quality is enhanced. ACCURACY OF DRAWINGS

[0018] Figure 1 It is the front view of the filter device for removing fluorine and thallium of mineral processing waste water that the utility model proposes;

[0019] Figure 2 It is the plan view of the filter device for removing fluorine and thallium of mineral processing waste water that the utility model proposes;

[0020] Figure 3 It is the plan view of the filter device for removing fluorine and thallium of mineral processing waste water that the utility model proposes;

[0021] Figure 4 It is the plan view of the filter device for removing fluorine and thallium of mineral processing waste water that the utility model proposes;

[0022] Figure 5 It is the enlarged view of A of the filter device for removing fluorine and thallium of mineral processing waste water that the utility model proposes;

[0023] Figure 6 It is the plan view of the filter device for removing fluorine and thallium of mineral processing waste water that the utility model proposes;

[0024] Figure 7 It is the plan view of the filter device for removing fluorine and thallium of mineral processing waste water that the utility model proposes;

[0025] Figure 8 It is the plan view of the filter device for removing fluorine and thallium of mineral processing waste water that the utility model proposes;

[0026] Figure 9 It is the plan view of the filter device for removing fluorine and thallium of mineral processing waste water that the utility model proposes.

[0027] LEGEND:

[0028] 1, sedimentation tank; 2, protective shell; 3, protective cover; 4, wind fan; 5, first rotating rod; 6, large gear; 7, worm; 8, small gear; 9, working rod; 10, first worm gear; 11, stirring fan; 12, scraping rod; 13, cleaning rod; 14, second rotating rod; 15, second worm gear; 16, driving wheel; 17, feeding table; 18, feeding pipe; 19, sieve plate; 20, third rotating rod; 21, idler; 22, push plate; 23, water inlet table; 24, water distribution pipe; 25, quick water outlet pipe; 26, collection table; 27, circulation pipe; 28, cross-flow filtration table; 29, filter membrane; 30, water outlet pipe; 31, water pump. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the specification of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] With reference to Figure 1 , Figure 3 and Figure 4 , one embodiment provided by the utility model: a kind of filter device for fluorine and thallium removal of mineral processing wastewater, including sedimentation tank 1, the outer wall left side of sedimentation tank 1 is fixedly connected with protective shell 2, the outer wall of protective shell 2 is fixedly connected with protective cover 3, the inner wall of protective shell 2 is rotatably connected with first rotating rod 5, the outer wall of first rotating rod 5 is fixedly connected with wind fan 4, the outer wall of first rotating rod 5 is fixedly connected with large gear 6, the inner wall of protective shell 2 is rotatably connected with worm 7, the outer wall of worm 7 is fixedly connected with small gear 8, the inner wall of protective cover 3 is rotatably connected with working rod 9, the outer wall of working rod 9 is fixedly connected with first worm gear 10 and stirring fan 11, the outer wall bottom end of working rod 9 is fixedly connected with multiple scraping rods 12, the upper surface of scraping rod 12 is rotatably connected with cleaning rod 13, the inner wall of protective cover 3 is provided with feeding assembly, one end of worm 7 is rotatably connected in the inner wall of protective cover 3, the outer wall of worm 7 is provided with multiple threads, worm 7 and first worm gear 10 are engagedly connected, the bottom end of working rod 9 is rotatably connected in the inner wall of sedimentation tank 1.

[0031] Specifically, the protective shell 2 and the protective cover 3 protect the internal components and prevent wastewater splashing and water vapor from entering the interior to corrode the parts. The protective shell 2 supports and limits the first rotating rod 5. The wind fan 4 collects wind power and drives the first rotating rod 5 to rotate. The gear ratio of the large gear 6 and the small gear 8 amplifies the wind power, drives the worm 7 to rotate, and the materials of the first rotating rod 5 and the large gear 6 are light, ensuring that the wind power is sufficient to meet the power requirements. When the worm 7 rotates, the first worm wheel 10 rotates through the thread, and the first worm wheel 10 drives the working rod 9 to rotate, thereby realizing the conversion of wind power and the change of driving direction. When the working rod 9 rotates, the stirring fan 11 and the scraping rod 12 on the outer wall of the working rod 9 rotate synchronously, which stirs the wastewater and ensures that the wastewater and the filtering agent are fully mixed and contacted to react and precipitate. The cleaning rod 13 installed at the top of the scraping rod 12 simultaneously cleans the inner wall of the sedimentation tank 1, saving the subsequent manual cleaning process, and the sedimentation tank 1 limits and fixes the working rod 9. In a mineral processing plant with sufficient and stable power supply, the wind power output end can be replaced with a motor end to ensure the normal operation and practicality of the device.

[0032] Referring to Figures 4-6 The feeding assembly includes a feeding pipe 18 fixedly connected and penetrating through the inner wall of the protective cover 3, a feeding table 17 fixedly connected to the top end of the feeding pipe 18, a sieve plate 19 fixedly connected to the inner wall of the feeding pipe 18, a third rotating rod 20 rotatably connected to the inner wall of the sieve plate 19, a plurality of push plates 22 fixedly connected to the outer wall of the third rotating rod 20, an idler 21 fixedly connected to the outer wall of the third rotating rod 20, a second rotating rod 14 rotatably connected to the inner wall of the protective cover 3, a second worm wheel 15 and a driving wheel 16 fixedly connected to the outer wall of the second rotating rod 14, the second worm wheel 15 being meshingly connected with the worm 7, a belt being sleeved on the outer wall of the second rotating rod 14 and the driving wheel 16, a plurality of working grooves being formed in the inner wall of the feeding pipe 18, the belt being slidably connected and penetrating through the working grooves, a plurality of discharge holes being formed in the inner wall of the sieve plate 19, and the lower surfaces of the push plates 22 being slidably connected to the upper surface of the sieve plate 19.

[0033] Specifically, the filtering agent is stored or continuously fed in the feeding table 17. The filtering agent falls onto the upper surface of the sieve plate 19 through the feeding pipe 18 and is blocked by the push plates 22. When the worm 7 rotates, the second worm wheel 15 is driven to rotate through meshing, the driving wheel 16 at the lower end of the second worm wheel 15 transmits power to the idler 21 through the belt, and the third rotating rod 20 is further driven to rotate, which drives the four push plates 22 to rotate. At this time, the plurality of working grooves formed in the sieve plate 19 are exposed, the filtering agent falls into the sedimentation tank 1 below through the working grooves and mixes with the wastewater, and the rotation of the push plates 22 orderly blocks and removes the working grooves, so that the feeding of the filtering agent becomes controllable and slow, ensuring the sufficient mixing of the filtering agent and the wastewater and enhancing the filtering efficiency.

[0034] With reference to Figures 7-9 The upper surface of the sedimentation tank 1 is fixedly connected with a water inlet platform 23, the inner wall of the sedimentation tank 1 is fixedly connected with a water distribution pipe 24, the inner wall of the sedimentation tank 1 is fixedly connected and penetrates a quick water outlet pipe 25, the other end of the quick water outlet pipe 25 is fixedly connected with a collection platform 26, the inner wall of the sedimentation tank 1 is fixedly connected and penetrates a circulation pipe 27, the outer wall of the circulation pipe 27 is fixedly connected with a cross-flow filter platform 28, a water pump 31 is installed on the outer wall of the circulation pipe 27, the inner wall of the cross-flow filter platform 28 is fixedly connected and penetrates a water outlet pipe 30, and the other end of the water outlet pipe 30 is fixedly connected to the inner wall of the collection platform 26.

[0035] Specifically, the wastewater is discharged into the sedimentation tank 1 through the water distribution pipe 24, and then evenly enters the sedimentation tank 1 through the multiple water outlets of the water distribution pipe 24, so that the wastewater is evenly distributed in the tank. When the wastewater is discharged and filtered at the same time, the local water flow is avoided to be too large or too small, and the entire filtering area can effectively play a role in removing fluorine and thallium. The presence of the quick water outlet pipe 25 ensures that the device can perform emergency filtration and directly discharge the wastewater into the collection platform 26 for subsequent treatment. When fine filtration is required, the wastewater is discharged into the circulation pipe 27, and the wastewater is guided to pass through the cross-flow filter platform 28 again for filtration by the water pump 31. The filtration quality is guaranteed by twice filtration, and the filtration material put into the sedimentation tank 1 and the cross-flow filter platform 28 can be set as a filter for different heavy metals during actual operation, such as removing fluorine in the sedimentation tank 1 and removing thallium in the cross-flow filter platform 28. After the treatment in the cross-flow filter platform 28 is completed, the wastewater is discharged into the collection platform 26 through the water outlet pipe 30.

[0036] With reference to Figure 4 The bottom end of the scraping rod 12 is provided with multiple grooves, the length of the scraping rod 12 is equal to the radius of the sedimentation tank 1, the lower surface of the scraping rod 12 is slidingly connected to the inner wall of the sedimentation tank 1, and the outer wall of the cleaning rod 13 is slidingly connected to the inner wall of the sedimentation tank 1.

[0037] Specifically, the grooves at the bottom end of the scraping rod 12 slide on the bottom end of the sedimentation tank 1, so that the precipitates generated during the chemical reaction in the filtration process can be stirred and scraped, preventing them from solidifying on the surface of the sedimentation tank 1, which is difficult to clean over a long period of time and saves the step of manual cleaning. The length of the scraping rod 12 is equal to the radius of the circular sedimentation tank 1, ensuring that the cleaning and stirring range can cover the entire device. The rotatable cleaning rod 13 installed at the top end of the scraping rod 12 can also fit the outer wall of the sedimentation tank 1, touching and cleaning the surface while stirring. The material is commonly used sleeve type filter cotton, which is convenient to disassemble and replace.

[0038] With reference to Figure 7 and Figure 8The inner wall of the water inlet platform 23 is fixedly connected with a filter screen, the inner wall bottom end of the water distribution pipe 24 is provided with a plurality of water distribution grooves, the fast water outlet pipe 25 and one end of the circulating pipe 27 are fixedly connected with filter screens, and the inner walls of the fast water outlet pipe 25, the circulating pipe 27 and the water outlet pipe 30 are provided with a plurality of valves.

[0039] Specifically, the filter screen ensures that large particles such as mineral materials and garbage in the wastewater cannot enter the sedimentation tank 1 or the pipeline, affecting the filtering effect, and can also be preliminarily filtered to enhance the filtering quality. The installation of the valves makes the discharge and flow of the wastewater controllable, and the valves can be opened or closed at any time to control the filtering link and process.

[0040] Referring to Figure 9 The inner wall of the cross-flow filtration platform 28 is fixedly connected with a filter membrane 29, and the circulating pipe 27 is connected through the inner wall of the cross-flow filtration platform 28.

[0041] Specifically, when the wastewater flows in parallel through the circulating pipe 27 into the cross-flow filtration platform 28, after passing through the filter membrane 29, the fluorine and thallium in the wastewater react with the filter agent on the filter membrane 29 to produce a precipitate, and the filtered wastewater liquid falls from the filter membrane 29 into the inner cavity of the cross-flow filtration platform 28, and the suspended particles and impurities are intercepted and continue to flow with the wastewater and finally return to the sedimentation tank 1 for repeated filtration. This cross-flow filtration method makes it difficult for particles on the surface of the filter medium to form a tight filter cake layer, thereby reducing the filtration resistance and maintaining a high filtration flux.

[0042] Working principle: when using the filtering device, first close the valves of each pipeline, discharge the wastewater from the water inlet platform 23, and ensure that the wastewater flows out of the multiple water distribution grooves of the water distribution pipe 24, ensuring that the wastewater uniformly enters the sedimentation tank 1, avoiding excessive or insufficient local water flow, and ensuring that the entire filtering device can effectively function.

[0043] When the water level reaches the appropriate position, put the filter agent such as lime into the feeding platform 17, and at this time, open the wind fan 4, which is driven to rotate by the wind. When the wind fan 4 rotates, the first rotating rod 5 and the large gear 6 thereon are rotated, the wind power is amplified through the gear ratio setting, the small gear 8 and the worm 7 are rotated, and when the worm 7 rotates, the first worm wheel 10 and the second worm wheel 15 are simultaneously rotated through meshing connection.

[0044] When the first worm wheel 10 rotates, the second rotating rod 14 is rotated, and then the driving wheel 16 sleeved on the outer wall of the second rotating rod 14 is rotated, the idler wheel 21 and the third rotating rod 20 are rotated through the belt, and at this time, the multiple push plates 22 fixedly connected to the third rotating rod 20 also slide and rotate on the upper surface of the sieve plate 19. The filter agent in the feeding platform 17 will gradually fall into the sedimentation tank 1 below along the feeding pipe 18 and through the multiple discharge grooves formed in the sieve plate 19, and react with the wastewater.

[0045] When the second worm gear 15 rotates, the lower stirring fan 11 and the plurality of scraping rods 12 are driven to rotate, thereby stirring the wastewater and mixing it with the filtering agent for reaction, and the concave-convex structure at the lower end of the scraping rod 12 scrapes the bottom surface of the sedimentation tank 1 to prevent the reaction solidification from being fixed on the bottom surface, and the cleaning rod 13 connected to the upper surface of the scraping rod 12 slides along the inner wall of the sedimentation tank 1 to wipe off the reaction precipitate that may be condensed thereon, thereby eliminating the subsequent manual cleaning step.

[0046] After a period of time, if only preliminary filtration or emergency filtration is needed, the valve on the quick water outlet pipe 25 is opened, and the filtered wastewater is directly discharged into the collection platform 26.

[0047] If fine filtration is needed to ensure the filtration quality, the valve on the circulating pipe 27 is opened, and the wastewater enters the inside of the cross-flow filtration platform 28 from the circulating pipe 27 to be cross-flow filtered again. In the cross-flow filtration process, the wastewater flows along the surface of the filter membrane 29 in parallel, reacts with the filtering agent in the filter membrane 29 again, a part of the wastewater passes through the filter membrane 29 to become filtrate, and the precipitate and other impurities are intercepted and continue to flow with the wastewater, which is returned to the sedimentation tank 1 along the circulating pipe 27 under the action of the water pump 31 to be repeatedly filtered, thereby ensuring the filtration quality. The filtered wastewater is finally discharged to the collection platform 26 through the water outlet pipe 30 for subsequent treatment.

[0048] In actual operation, the filtering materials put in the sedimentation tank 1 and the cross-flow filtration platform 28 can be set as filtering agents for different heavy metals, such as fluoride removal in the sedimentation tank 1 and thallium removal in the cross-flow filtration platform 28.

[0049] When the wind strength is small, after the wastewater is discharged to the sedimentation tank 1, the filtering agent is manually put into the edge of the sedimentation tank 1, manual stirring or direct opening of the water pump 31 is performed, and the cross-flow filtration platform 28 is used to filter the wastewater. After a period of time, the quick water outlet pipe 25 is opened, and the cross-flow filtration is used to ensure the filtration effect of the wastewater.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the scope of the present application shall be included in the protection scope of the present application.

Claims

1. A filtration device for combined fluoride and thallium removal from mineral processing wastewater, comprising a sedimentation tank (1), characterized in that: A protective shell (2) is fixedly connected to the left side of the outer wall of the sedimentation tank (1). A protective cover (3) is fixedly connected to the outer wall of the protective shell (2). A first rotating rod (5) is rotatably connected to the inner wall of the protective shell (2). A fan (4) is fixedly connected to the outer wall of the first rotating rod (5). A large gear (6) is fixedly connected to the outer wall of the first rotating rod (5). A worm gear (7) is rotatably connected to the inner wall of the protective shell (2). A small gear (8) is fixedly connected to the outer wall of the worm gear (7). A working rod (9) is rotatably connected to the inner wall of the protective cover (3). A first worm wheel (10) and a stirring fan (11) are fixedly connected to the outer wall of the working rod (9). Multiple scraping rods (12) are fixedly connected to the bottom of the outer wall of the working rod (9). A cleaning rod (13) is rotatably connected to the upper surface of the scraping rod (12). A feeding assembly is provided on the inner wall of the protective cover (3).

2. The filtration device for combined fluoride and thallium removal in mineral processing wastewater according to claim 1, characterized in that: The feeding assembly includes a feeding pipe (18), which is fixedly connected to and passes through the inner wall of the protective cover (3). A feeding platform (17) is fixedly connected to the top of the feeding pipe (18). A strainer (19) is fixedly connected to the inner wall of the feeding pipe (18). A third rotating rod (20) is rotatably connected to the inner wall of the strainer (19). Multiple push plates (22) are fixedly connected to the outer wall of the third rotating rod (20). An idler wheel (21) is fixedly connected to the outer wall of the third rotating rod (20). A second rotating rod (14) is rotatably connected to the inner wall of the protective cover (3). A second worm gear (15) and a drive wheel (16) are fixedly connected to the outer wall of the second rotating rod (14).

3. The filtration device for combined defluorination and thallium removal of mineral processing wastewater according to claim 1, characterized in that: The upper surface of the sedimentation tank (1) is fixedly connected to a water inlet platform (23), the inner wall of the sedimentation tank (1) is fixedly connected to a water distribution pipe (24), the inner wall of the sedimentation tank (1) is fixedly connected to and penetrates a rapid water outlet pipe (25), the other end of the rapid water outlet pipe (25) is fixedly connected to a collection platform (26), the inner wall of the sedimentation tank (1) is fixedly connected to and penetrates a circulation pipe (27), the outer wall of the circulation pipe (27) is fixedly connected to a cross-flow filter platform (28), a water pump (31) is installed on the outer wall of the circulation pipe (27), the inner wall of the cross-flow filter platform (28) is fixedly connected to and penetrates a water outlet pipe (30), and the other end of the water outlet pipe (30) is fixedly connected to the inner wall of the collection platform (26).

4. The filtration device for combined defluorination and thallium removal of mineral processing wastewater according to claim 1, characterized in that: One end of the worm (7) is rotatably connected to the inner wall of the protective cover (3). The outer wall of the worm (7) is provided with multiple threads. The worm (7) and the first worm wheel (10) are meshed and connected. The bottom end of the working rod (9) is rotatably connected to the inner wall of the sedimentation tank (1).

5. A filtration device for combined defluorination and thallium removal of mineral processing wastewater according to claim 1, characterized in that: The bottom end of the scraper (12) is provided with multiple grooves. The length of the scraper (12) is equal to the radius of the sedimentation tank (1). The lower surface of the scraper (12) is slidably connected to the inner wall of the sedimentation tank (1). The outer wall of the cleaning rod (13) is slidably connected to the inner wall of the sedimentation tank (1).

6. A filtration device for combined fluoride and thallium removal from mineral processing wastewater according to claim 2, characterized in that: The second worm gear (15) and the worm (7) are meshed together. The outer wall of the second rotating rod (14) and the driving wheel (16) is fitted with a belt. The inner wall of the feeding pipe (18) is provided with multiple working grooves. The belt is slidably connected and passes through the working grooves. The inner wall of the sluice plate (19) is provided with multiple discharge holes. The lower surface of the push plate (22) is slidably connected to the upper surface of the sluice plate (19).

7. A filtration device for combined fluoride and thallium removal in mineral processing wastewater according to claim 3, characterized in that: The inner wall of the water inlet platform (23) is fixedly connected with a filter screen, and the bottom of the inner wall of the water distribution pipe (24) is provided with multiple water distribution grooves. One end of the rapid water outlet pipe (25) and the circulation pipe (27) is fixedly connected with a filter screen, and multiple valves are installed on the inner wall of the rapid water outlet pipe (25), the circulation pipe (27) and the water outlet pipe (30).

8. A filtration device for combined fluoride and thallium removal in mineral processing wastewater according to claim 3, characterized in that: The inner wall of the cross-flow filter table (28) is fixedly connected to a filter membrane (29), and the circulation pipe (27) is connected through the inner wall of the cross-flow filter table (28).

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