A wastewater treatment device and treatment method for tungsten slag acid leaching

Abstract

The application discloses a tungsten residue acid leaching method wastewater treatment device and a treatment method thereof, and relates to the technical field of wastewater treatment devices.The device comprises a filter tank, the bottom of the filter tank is connected with a connecting pipe, one end of the connecting pipe is fixedly connected with a sedimentation tank, support columns are fixedly installed in the middle parts of the filter tank and the sedimentation tank, the inside of the support columns is hollow, a connecting strip is slidably connected to the support column in the filter tank, the middle part of the connecting strip is coaxial with the axis of the support column and is in a cross shape, and the outside of the connecting strip is fixedly connected with a collection groove.The tungsten residue acid leaching method wastewater treatment device drives the cutting water flow in the rotating process of the rotating ring, the filter agent is activated carbon, and the buoyancy is generated due to the rising of the liquid surface, so that the activated carbon flows between the rotating ring and the collection groove, the filtering effect is generated in the filter tank, the activated carbon is in a dynamic flow process, the contact area is different, the range of the activated carbon adsorption is improved, and the purification effect in the filter tank is improved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment equipment technology, specifically to a wastewater treatment device and method using tungsten slag acid leaching. Background Technology

[0002] Existing methods for treating tungsten slag mainly involve physical and chemical approaches, including technologies such as chemical sedimentation, physical filtration, and flotation. Physical methods reduce the concentration of suspended particulate matter in wastewater through solid-liquid separation and particulate removal, while chemical methods use precipitants and chromium-containing agents to precipitate metal ions, ensuring compliance with discharge standards. However, current methods for treating tungsten slag wastewater still have some problems. Firstly, while physical methods are effective at removing suspended particles, they are less effective at removing metal ions and dissolved organic matter. To address this, a dual chemical and physical removal approach is generally used. Although this removes a certain amount of metal ions, the cost of chemical reagents is high, and the precipitates produced after treatment also contribute to wastewater treatment. New environmental problems have arisen. In existing treatment ponds, sufficient chemical reagents are added, and bottom aeration is used to diffuse the wastewater to the surrounding area, causing sedimentation. Subsequent wastewater is then treated by physical filtration. During this process, the wastewater is discharged into a filtration tank. In the filtration tank, to ensure the adsorbent can fully adsorb impurities and to prevent excessive water flow from washing away the adsorbent surface and reducing adsorption efficiency, the water flow is kept static. However, this results in extremely low filtration efficiency. Furthermore, the adsorbent's efficiency decreases after adsorption of impurities, and during water separation or adsorbent removal, particles attached to the adsorbent surface easily fall back into the water, requiring repeated addition of adsorbent. This increases costs and makes it difficult to completely remove all particles from the water. Therefore, we propose a tungsten slag acid leaching wastewater treatment device. Summary of the Invention

[0003] The purpose of this invention is to provide a wastewater treatment device and method for tungsten slag acid leaching, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a wastewater treatment device and method for tungsten slag acid leaching, comprising a filter tank, a connecting pipe connected to the bottom of the filter tank, a sedimentation tank fixedly connected to one end of the connecting pipe, support columns fixedly installed in the middle of both the filter tank and the sedimentation tank, a floating bridge installed at the top of each support column, the support column being hollow inside, a connecting strip slidably connected to the support column located inside the filter tank, the middle part of the connecting strip coinciding with the axis of the support column and forming a cross shape, a collection trough fixedly connected to the outside of the connecting strip, a check plate movably connected to the top of the collection trough, a rotating ring slidably connected to the outer ring of the check plate, the rotating ring having multiple equidistantly spaced receiving holes in annular shape, the multiple annular receiving holes being divided into multiple layers on the rotating ring, and an arched plate fixedly installed at the outer edge of each receiving hole in each layer, the arched plate having a water collection part for water accumulation, when the sedimentation tank is discharging water, potential energy is generated, generating water pressure inside the filter tank to drive the arched plate to move, driving the rotating ring to rotate.

[0005] Preferably, the center of the receiving hole is located near the outer ring of the collection groove, and the rotating ring has a connecting area between two adjacent receiving holes.

[0006] Preferably, an outer edge rod is fixedly connected to the outside of the rotating ring near each arched piece, and a rotating wheel is rotatably connected to each outer edge rod. When the rotating wheel rotates towards the inner ring of the filter tank, a vortex is generated between the other side and the driving force surface, which creates a pressure difference at the receiving hole, so that the adsorbent material is firmly fixed on the receiving hole.

[0007] Preferably, a base plate is fixedly installed at the bottom of the summarizing groove, and multiple steep slope plates are equidistantly arranged on the base plate. Each steep slope plate has multiple expansion zones, and the end of each expansion zone extends outward from the steep slope plate in the direction of rotation to form an extension. The end faces of each extension are flush with each other, and a rolling surface is fixedly installed on each extension. The rolling surface corresponds one-to-one with the receiving hole. A connecting plate is installed between two adjacent steep slope plates, and each connecting plate is fixedly connected to the base plate.

[0008] Preferably, the extension line of one end of the connecting pipe coincides with the tangent line of the rotating ring during rotation, and multiple rolling balls are installed at the bottom of the rotating ring.

[0009] Preferably, the summarizing groove has multiple connecting cavities, and a spring is fixedly connected to the bottom of each connecting cavity. A lifting rod is fixedly connected to the inner ring of the spring, and the lifting rod is fixedly connected to the stop plate. The bottom of each connecting cavity communicates with the expansion zone.

[0010] Preferably, an aeration pipe is installed at the bottom of the sedimentation tank, a dispersion plate is fixedly connected to the outer ring of the support column located inside the sedimentation tank, and a rotatable extension bridge is connected to the outer side of each floating bridge, with a detector slidably connected to the extension bridge.

[0011] Preferably, the filtration tank and the sedimentation tank have the same capacity, and an isolation net is installed at the bottom of the sedimentation tank, with the isolation net and the end of the connecting pipe being close together.

[0012] Preferably, the processing method includes the following steps:

[0013] a. Pre-processing:

[0014] First, the tungsten slag and its solution are discharged into a pretreatment tank for cleaning. Then, an acidic solution is added to the treatment tank to treat the tungsten slag and dissolve the metal ions. The treated aqueous solution is then discharged into a sedimentation tank in multiple batches through a simple separation process for secondary sedimentation.

[0015] b. Filter media addition:

[0016] The support column is equipped with a cylinder. When the filter tank is not in use, the cylinder is in the retracted state, and the check plate and the bottom of the floating bridge are close. The check plate is manually lifted and the filter is put into the bottom plate.

[0017] c. Precipitation treatment:

[0018] After the sedimentation tank is filled with wastewater, a sufficient amount of hydrochloric acid or nitric acid of -% concentration is poured into the sedimentation tank as a leaching agent. At a temperature of about 100 degrees Celsius, the tungsten mineral is directly decomposed to form tungstic acid precipitate. During the secondary sedimentation process, the aeration pipe is turned on to aerate the sedimentation tank. During the aeration process, the gas generates bubbles in the sedimentation tank and flows to the bottom of the dispersion plate. The dispersion plate has a porous structure that evenly disperses the bubbles, so that multiple parts inside the sedimentation tank can react with the acid, improving the reaction quality. The sedimentation tank is equipped with an isolation net at one end of the connecting pipe to retain the sediment filter residue inside the sedimentation tank. The filtered water is discharged into the filtration tank through the connecting pipe.

[0019] d. Filtration and purification:

[0020] When a one-way valve is installed on the connecting pipe to prevent backflow of filtrate, the solutions in the filtration tank and sedimentation tank are flushed to form a communicating vessel. When filtrate begins to appear inside the filtration tank, the cylinder descends, causing the collection tank to sink, so that the rotating ring is located at the bottom of the filtration tank. When the connecting pipe drains water onto the rotating ring, the arched plate drives the rotating ring to rotate around the collection tank. As the wheel rotates, the filter medium generates buoyancy and is adsorbed onto the receiving hole. During the rotation of the rotating ring, the filter medium rolls on the rolling surface, and the filtrate comes into full contact with the filter medium.

[0021] e. Filter collection:

[0022] As the filter medium's diameter increases with time, it is squeezed out through the receiving orifice. The squeezed-out filter medium detaches between the two steep slope plates to adsorb the filtrate that is difficult to adsorb between the rotating ring and the settling tank. When the liquid levels in the filter tank and the settling tank are equal, the valve is closed to discharge the filtrate inside the filter tank. After the filtrate inside the filter tank has been discharged, the valve is reopened to allow the filtrate inside the settling tank to flow back into the filter tank. This process is repeated until the filtrate inside the settling tank has been discharged. The cylinder is then retracted, exposing the settling tank to the water surface, and the filter medium is manually removed and replaced.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] The sedimentation tank of this invention has an isolation net at one end of the connecting pipe to retain the sedimented filter residue inside the sedimentation tank. The filtered water is discharged into the filtration tank through the connecting pipe. When the filtration tank starts to accumulate water, a cylinder is installed inside the support column. When the filtration tank is not in use, the cylinder is in a retracted state, and the check plate and the bottom of the floating bridge are close. The check plate is manually raised, and the filter agent is put into the bottom plate. Then the cylinder is driven to descend, so that the bottom plate contacts the filtration tank. When the connecting pipe drains water onto the rotating ring, the arched plate drives the rotating ring to rotate around the collection tank. During the rotation, the rotating ring cuts the water flow and the filter agent activated carbon. At the same time, the buoyancy generated by the rising liquid level causes the activated carbon to flow between the rotating ring and the collection tank, so that the filtration effect is produced inside the filtration tank. The activated carbon is in a dynamic flow process, and the contact area is different, which increases the adsorption range of the activated carbon and improves the purification effect inside the filtration tank.

[0025] During the rotation of the rotating ring, the activated carbon rolls on the rolling surface. As the activated carbon rotates, the portion located between the rotating ring and the collection tank moves closer to the water outlet at the end of the connecting pipe, allowing the activated carbon to be fully utilized. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0028] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A;

[0029] Figure 4 This is a schematic diagram of the induction groove, bottom plate, and steep slope plate structure of the present invention;

[0030] Figure 5 For the present invention Figure 4A schematic diagram of the split structure;

[0031] Figure 6 This is a schematic diagram of the planar structure of the rotating ring, steep slope plate, and induction groove of the present invention;

[0032] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B;

[0033] Figure 8 This is a schematic diagram of the arched sheet structure of the present invention;

[0034] Figure 9 This is a schematic diagram of the connecting pipe structure of the present invention.

[0035] In the diagram: 1-Filter tank; 2-Sedimentation tank; 3-Connecting pipe; 4-Floating bridge; 5-Extension bridge; 6-Detector; 7-Dispersion plate; 8-Steep slope plate; 801-Expansion zone; 802-Rolling surface; 9-Rotating ring; 901-Accommodation hole; 902-Connecting zone; 10-Collection trough; 11-No-return plate; 12-Connecting strip; 13-Support column; 14-Outer edge rod; 15-Rotating wheel; 16-Bottom plate; 17-Connecting plate; 18-Arch-shaped plate; 1801-Water collection part; 19-Rolling ball; 20-Connecting cavity; 21-Spring; 22-Lifting rod. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figure 1-9This invention provides a technical solution: a wastewater treatment device and method for tungsten slag acid leaching, comprising a filter tank 1, a connecting pipe 3 connected to the bottom of the filter tank 1, a one-way valve installed on the connecting pipe 3 to prevent backflow of filtrate, thereby creating a communication channel between the filter tank 1 and the sedimentation tank 2. One end of the connecting pipe 3 is fixedly connected to the sedimentation tank 2. The filter tank 1 and the sedimentation tank 2 have the same capacity, and an isolation net is installed at the bottom of the sedimentation tank 2. The isolation net is close to the end of the connecting pipe 3. Support columns 13 are fixedly installed in the middle of both the filter tank 1 and the sedimentation tank 2. A floating bridge 4 is installed on the top of each support column 13. The support column 13 is hollow inside. A connecting strip 12 is slidably connected to the support column 13 located inside the filter tank 1. The middle part of the connecting strip 12 coincides with the axis of the support column 13 and forms a cross shape. A settling tank 10 is fixedly connected to the settling tank 10. A stop plate 11 is movably connected to the top of the settling tank 10. A rotating ring 9 is slidably connected to the outer ring of the stop plate 11. The rotating ring 9 has a plurality of equidistant accommodating holes 901 arranged in annular shape. The plurality of annular accommodating holes 901 are divided into multiple layers on the rotating ring 9. An arched plate 18 is fixedly installed at the outer edge of each accommodating hole 901 in each layer. A water collection part 1801 is provided on the arched plate 18 for water collection. When the sedimentation tank 2 is discharging water, potential energy is generated, and water pressure is generated inside the filter tank 1 to drive the arched plate 18 to move, thereby driving the rotating ring 9 to rotate. An aeration pipe is installed at the bottom of the sedimentation tank 2. A dispersion plate 7 is fixedly connected to the outer ring of the support column 13 located inside the sedimentation tank 2. A rotatable extension bridge 5 is connected to the outer side of each floating bridge 4. A detector 6 is slidably connected to the extension bridge 5.Firstly, activated carbon is used as the adsorption material. The activated carbon is in the form of hollow spheres, which facilitates adhesion to the receiving pores 901. After the sedimentation tank 2 is filled with wastewater, sufficient 32-38% hydrochloric acid or nitric acid is poured into the sedimentation tank 2 as a leaching agent. At a temperature of about 100 degrees Celsius, the tungsten minerals are directly decomposed to form tungstic acid precipitate. During the secondary sedimentation process, the aeration pipe is turned on to aerate the sedimentation tank 2. During the aeration process, the gas generates bubbles inside the sedimentation tank 2, which flow to the bottom of the dispersion plate 7. The dispersion plate 7 has a porous structure that evenly disperses the bubbles, allowing multiple areas inside the sedimentation tank 2 to react with the acid, thus improving the reaction quality. The sedimentation tank 2 is equipped with an isolation net at one end of the connecting pipe 3 to retain the sediment filter residue inside the sedimentation tank 2. The filtered water is discharged into the filter tank 1 through the connecting pipe 3, and then the filter tank 1 begins to accumulate... When the filter tank 1 is in use, a cylinder is installed inside the support column 13. When the filter tank 1 is not in use, the cylinder is in a retracted state, and the bottom of the check plate 11 and the floating bridge 4 are close together. The check plate 11 is manually raised, and the filter medium is placed on the bottom plate 16. Then, the cylinder is driven to descend, so that the bottom of the bottom plate 16 contacts the filter tank 1. When the connecting pipe 3 drains water onto the rotating ring 9, the arched plate 18 drives the rotating ring 9 to rotate around the collection tank 10. During the rotation, the rotating ring 9 cuts the water flow and the filter medium, activated carbon. At the same time, due to the rising liquid level, buoyancy is generated, which causes the activated carbon to flow between the rotating ring 9 and the collection tank 10, so that the filter tank 1 produces a filtration effect. The activated carbon is in a dynamic flow process, and the contact area is different, which increases the adsorption range of the activated carbon and improves the purification effect inside the filter tank 1.

[0038] Specifically, the center of the receiving hole 901 is located near the outer ring of the collection groove 10, and the rotating ring 9 has a connecting area 902 between two adjacent receiving holes 901. An outer edge rod 14 is fixedly connected to the outside of the rotating ring 9 near each arched piece 18, and a rotating wheel 15 is rotatably connected to each outer edge rod 14. When the rotating wheel 15 rotates with its driving force surface facing the inner ring of the filter tank 1, it generates a vortex between its other side and the driving force surface, creating a pressure difference at the receiving hole 901, thus fixing the adsorbent material firmly on the receiving hole 901. This, in turn, drives the rotating wheel 15 to rotate. The rotation of the rotating wheel 15 causes one side of it to move to the other side, generating a vortex that can adsorb activated carbon. The dynamic activated carbon can merge with the receiving hole 901 along the connecting area 902. As the rotating wheel 15 rotates for a long time, the activated carbon generates buoyancy and adsorbs the filter agent onto the receiving hole 901, facilitating the adsorption of impurities inside the filter tank 1.

[0039] Furthermore, a base plate 16 is fixedly installed at the bottom of the collection tank 10. Multiple steep slope plates 8 are equidistantly arranged on the base plate 16. Each steep slope plate 8 has multiple expansion zones 801. The end of each expansion zone 801 extends outwards from the rotating ring 9 to form an extension. The end faces of each extension are flush with each other, and a rolling surface 802 is fixedly installed on each extension. The rolling surface 802 corresponds one-to-one with the receiving hole 901. A connecting plate 17 is installed between two adjacent steep slope plates 8. Each connecting plate 17 is fixedly connected to the base plate 16. When the activated carbon located in the receiving hole 901 rotates with the rotating ring 9, the activated carbon... During the rotation, the activated carbon rolls on the rolling surface 802. As the activated carbon rotates, the portion located between the rotating ring 9 and the collecting tank 10 rotates to the water outlet near the end of the connecting pipe 3, allowing the activated carbon to be fully utilized. As the activated carbon's radius increases over time, it detaches from the receiving hole 901. Then, as the rotating ring 9 rotates, the activated carbon crosses the space between the two steep slope plates 8. As the rotating ring 9 rotates, the activated carbon enters the expansion zone 801, which is at the same horizontal position, for collection. This facilitates subsequent manual collection of the adsorbed activated carbon directly along the space between the two steep slope plates 8.

[0040] The extension line of one end of the connecting pipe 3 coincides with the tangent line of the rotating ring 9 when it rotates. Multiple rolling balls 19 are installed at the bottom of the rotating ring 9, which improves the rotation efficiency of the rotating ring 9.

[0041] The collection tank 10 has multiple connecting cavities 20. A spring 21 is fixedly connected to the bottom of each connecting cavity 20. A lifting rod 22 is fixedly connected to the inner ring of the spring 21. The lifting rod 22 is fixedly connected to the stop plate 11. The bottom of each connecting cavity 20 communicates with the expansion zone 801. The stop plate 11 can be pulled up from the bottom to replace the multiple spherical activated carbons on the bottom plate 16. The operation is convenient and practical.

[0042] The processing method includes the following steps:

[0043] a. Pre-processing:

[0044] First, the tungsten slag and its solution are discharged into a pretreatment tank for cleaning. Then, an acidic solution is added to the treatment tank to treat the tungsten slag and dissolve the metal ions in it. The treated aqueous solution is then discharged into the sedimentation tank 2 in multiple batches through a simple separation technology for secondary sedimentation.

[0045] b. Filter media addition:

[0046] The support column 13 is equipped with a cylinder. When the filter tank 1 is not in use, the cylinder is in a retracted state, and the bottom of the check plate 11 and the floating bridge 4 are close together. The check plate 11 is lifted manually and the filter is put into the bottom plate 16.

[0047] c. Precipitation treatment:

[0048] After the sedimentation tank 2 is filled with wastewater, a sufficient amount of 32-38% hydrochloric acid or nitric acid is poured into the sedimentation tank 2 as a leaching agent. At a temperature of about 100 degrees Celsius, the tungsten mineral is directly decomposed to generate tungstic acid precipitate. During the secondary sedimentation process, the aeration pipe is turned on to aerate the sedimentation tank 2. During the aeration process, the gas generates bubbles in the sedimentation tank 2 and flows to the bottom of the dispersion plate 7. The dispersion plate 7 has a porous structure to evenly disperse the bubbles, so that multiple parts inside the sedimentation tank 2 can react with the acid, improving the reaction quality. The sedimentation tank 2 is equipped with an isolation net at one end of the connecting pipe 3 to retain the sediment filter residue inside the sedimentation tank 2. The filtered water is discharged into the filter tank 1 through the connecting pipe 3.

[0049] d. Filtration and purification:

[0050] A one-way valve is installed on the connecting pipe 3 to prevent backflow of filtrate, thereby creating a communication channel between the solutions in the filter tank 1 and the sedimentation tank 2. When filtrate begins to appear inside the filter tank 1, the cylinder descends, causing the collection tank 10 to sink, so that the rotating ring 9 is located at the bottom of the filter tank 1. When the connecting pipe 3 drains water onto the rotating ring 9, the arched plate 18 drives the rotating ring 9 to rotate around the collection tank 10. The rotating wheel 15 rotates, and the filter medium generates buoyancy, adsorbing the filter medium onto the receiving hole 901. During the rotation of the rotating ring 9, the filter medium rolls on the rolling surface 802, ensuring full contact between the filtrate and the filter medium; e, Filter medium collection:

[0051] As the filter medium's diameter increases with the duration of action, it is squeezed out through the receiving hole 901. The squeezed-out filter medium separates between the two steep slope plates 8 to adsorb the filtrate that is difficult to adsorb between the rotating ring 9 and the settling tank 10. When the liquid levels in the filter tank 1 and the settling tank 2 are equal, the valve is closed to discharge the filtrate inside the filter tank 1. After the filtrate inside the filter tank 1 has been discharged, the valve is opened again to allow the filtrate inside the settling tank 2 to flow back into the filter tank 1. This process is repeated until the filtrate inside the settling tank 2 has been discharged. The cylinder is then retracted, causing the settling tank 10 to emerge from the water surface, and the filter medium is manually removed and replaced.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tungsten residue acid leaching method wastewater treatment device comprising a filter tank (1), characterized in that: The connecting pipe (3) one end is fixedly connected with the sedimentation tank (2), the middle part of the filter tank (1) and the sedimentation tank (2) is fixedly installed with the support column (13), the top of each support column (13) is installed with the floating bridge (4), the inside of the support column (13) is hollow structure, the inside of the support column (13) in the filter tank (1) is slidably connected with the connecting strip (12), the middle part of the connecting strip (12) and the support column (13) axis coincides and is in cross shape, the outside of the connecting strip (12) is fixedly connected with the induction groove (10), the top of the induction groove (10) is movably connected with the check plate (11), the outer ring of the check plate (11) is slidably connected with the rotating ring (9), the rotating ring (9) is annular, and a plurality of containing holes (901) are equidistantly formed in the rotating ring (9), the containing holes (901) are divided into multiple layers on the rotating ring (9), and the arched sheet (18) is fixedly installed on the outer edge of each containing hole (901) in each layer, the arched sheet (18) is provided with a water collecting part (1801) for water collection, when the sedimentation tank (2) is in the process of discharging water, potential energy is generated, water pressure is generated in the filter tank (1), the arched sheet (18) is driven to move, and the rotating ring (9) is driven to rotate; The outside of the rotating ring (9) is fixedly connected with the outer edge rod (14) near each arched sheet (18), and the outer edge rod (14) is rotatably connected with the rotating wheel (15). The bottom of the induction groove (10) is fixedly installed with the bottom plate (16), the bottom plate (16) is placed with activated carbon, and the activated carbon is a hollow spherical body, a plurality of steep slope plates (8) are equidistantly arranged on the bottom plate (16), a plurality of expansion zones (801) are formed in each steep slope plate (8), the end of each expansion zone (801) extends to the rotating ring (9), so that an extension part is formed outside the steep slope plate (8), the end faces of each extension part are flush with each other, and a rolling surface (802) is fixedly installed on each extension part, the rolling surface (802) and the containing hole (901) are one-to-one corresponding, and a connecting plate (17) is installed between the two adjacent steep slope plates (8), and the connecting plate (17) is fixedly connected with the bottom plate (16). The extension line of one end of the connecting pipe (3) and the tangent line of the rotating ring (9) when rotating coincide, and a plurality of rolling balls (19) are installed on the bottom of the rotating ring (9).

2. The tungsten residue acid leaching method wastewater treatment device according to claim 1, characterized in that: The center of the containing hole (901) is arranged close to the outer ring of the induction groove (10), and the rotating ring (9) is provided with a communication zone (902) between the two adjacent containing holes (901).

3. The device for treating wastewater from a tungsten residue acid leaching process according to claim 1, characterized in that: A plurality of connecting cavities (20) are formed in the induction groove (10), a spring (21) is fixedly connected to the inner bottom of each connecting cavity (20), a lifting rod (22) is fixedly connected to the inner ring of the spring (21), the lifting rod (22) and the check plate (11) are fixedly connected together, and the bottom of each connecting cavity (20) is communicated with the expansion zone (801).

4. The device for treating wastewater from a tungsten residue acid leaching process according to claim 1, characterized in that: The precipitation tank (2) bottom is provided with an aeration pipe, the outer ring of a support column (13) located inside the precipitation tank (2) is fixedly connected with a dispersion plate (7), each floating bridge (4) is connected with a rotatable extension bridge (5), and the extension bridge (5) is slidably connected with a detector (6).

5. The device for treating wastewater from a tungsten residue acid leaching process according to claim 1, characterized in that: The filter tank (1) and the precipitation tank (2) have the same capacity, and the precipitation tank (2) is provided with an isolation net at the bottom, and the isolation net is close to the end of the connecting pipe (3).

6. The process for treating the effluent from the tungsten residue acid leaching process as claimed in any one of claims 1 to 5, wherein the process comprises: The method comprises the following steps: a, pre-treatment: First, the tungsten slag and its solution are discharged into a pretreatment tank for cleaning, and an acidic solution is added into the tank to treat the tungsten slag, so that the metal ions are dissolved out, and the treated aqueous solution is discharged into the precipitation tank (2) in batches for secondary precipitation through separation technology; b, filter agent feeding: The support column (13) is internally provided with a gas cylinder, when the filter tank (1) is not in use, the gas cylinder is in a retracted state, the check plate (11) is close to the bottom of the floating bridge (4), and the check plate (11) is manually lifted to feed the filter agent onto the bottom plate (16), wherein the filter agent is activated carbon; c, precipitation treatment: When the precipitation tank (2) is filled with wastewater, a sufficient amount of 32-38% concentrated hydrochloric acid or nitric acid is poured into the precipitation tank (2) as a leaching agent, and tungsten ore is directly decomposed to generate tungstic acid precipitation at a temperature of 100 degrees, in the secondary precipitation process, the aeration pipe is opened to aerate the inside of the precipitation tank (2), in the process of aeration, gas bubbles are generated in the precipitation tank (2) and pass to the bottom of the dispersion plate (7), the dispersion plate (7) has a porous structure and can uniformly disperse the bubbles, so that multiple places in the precipitation tank (2) can react with the acid to improve the reaction quality, and the precipitation tank (2) is provided with an isolation net at one end of the connecting pipe (3), so as to retain the precipitation filter residue in the precipitation tank (2), and the filtered water is discharged into the filter tank (1) through the connecting pipe (3); d, filter purification: A one-way valve is arranged on the connecting pipe (3) to prevent backflow of the filtrate, so that the solution between the filter tank (1) and the precipitation tank (2) forms a communicating vessel, when the filtrate appears in the filter tank (1), the gas cylinder descends, the induction tank (10) sinks, and the rotating ring (9) is located at the bottom of the filter tank (1), when the connecting pipe (3) discharges water to the rotating ring (9), the arc-shaped piece (18) drives the rotating ring (9) to rotate around the induction tank (10), the rotating wheel (15) rotates, and the filter agent is adsorbed to the containing hole (901) after the filter agent generates buoyancy, and the filter agent rolls on the rolling surface (802) in the process of rotation of the rotating ring (9), so that the filtrate fully contacts with the filter agent; e, filter agent collection: When the filter grows with the action time, the diameter becomes large, and is extruded on the containing hole (901). The extruded filter is separated between the two steep slope plates (8), and is used for adsorbing the filtrate between the rotating ring (9) and the induction groove (10). When the liquid level of the filter tank (1) and the sedimentation tank (2) is equal, the valve is closed to firstly discharge the filtrate in the filter tank (1). After the discharge of the filtrate in the filter tank (1) is completed, the valve is opened again to make the filtrate in the sedimentation tank (2) flow into the filter tank (1) again. Then, the process is repeated. After the discharge of the filtrate in the sedimentation tank (2) is completed, the cylinder is recovered to make the induction groove (10) exposed to the water surface. The filter is manually taken out and replaced.

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