Defluorination device for rare earth smelting wastewater

Abstract

The utility model relates to the technical field of waste water defluorination, and provides a rare earth smelting waste water defluorination device which comprises a main machine tank, the top of the main machine tank is communicated with a feeding port, a rotating rod is rotatably connected to the interior of the feeding port, an activated carbon block is fixedly connected to the outer surface of the rotating rod in a sleeved mode, and one end of the rotating rod is fixedly connected with a driven rotating wheel. The outer surface of the driven rotating wheel is in transmission connection with a synchronous belt, the side, away from the driven rotating wheel, of the inner surface of the synchronous belt is in transmission connection with a driving rotating wheel, one side of the driving rotating wheel is fixedly connected with a main rod, and the outer surface of the main rod is rotationally connected into the main machine tank. The device disclosed by the utility model is provided with an activated carbon block rotary adsorption structure, so that fluorine ions in wastewater can be effectively removed, the fluorine content is reduced, the adsorption surface can be continuously updated, and the condition that local adsorption is saturated and other parts are not fully utilized is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater defluorination, in particular to a rare earth smelting wastewater defluorination device. Background Art

[0002] There are several primary methods for removing fluoride from rare earth smelting wastewater. Activated alumina adsorption is a common method. Activated alumina is a porous, highly dispersed solid material with numerous adsorption sites on its surface. Fluoride ions can adhere to the surface of activated alumina through both physical and chemical adsorption. Activated alumina is particularly effective at adsorbing fluoride ions under acidic conditions. Activated carbon adsorption can also remove fluoride, relying primarily on its large surface area and rich pore structure.

[0003] However, in the prior art, for example, Chinese Publication No. CN2202655528U, "A Defluorination Device for Rare Earth Smelting Wastewater," discloses a defluorination device for rare earth smelting wastewater, which relates to the technical field of defluorination devices and includes a defluorination box for rare earth smelting wastewater, the defluorination box being connected to a wastewater pipe, a catalyst hopper, and two material hoppers, both of which are fixedly connected to a material mesh cylinder, a water quality sensor, an audible and visual alarm, and a numerical display, and a screening mechanism is provided within the defluorination box. Compared with the prior art, the defluorination device for rare earth smelting wastewater has a problem in which the reduced impurity screening efficiency easily affects the defluorination effect of rare earth smelting wastewater. The device facilitates defluorination of rare earth smelting wastewater through the coordination of the wastewater pipe, the catalyst hopper, the material hopper, the material mesh cylinder, the water quality sensor, the audible and visual alarm, the numerical display, and the screening mesh plate. At the same time, it facilitates cleaning of the screening mesh plate and the material mesh cylinder by cleaning soft bristles and a cleaning brush, thereby reducing the impact of impurities on the defluorination effect of rare earth smelting.

[0004] However, this device does not have a rotating adsorption structure for activated carbon blocks, and cannot effectively remove fluoride ions from wastewater to reduce the fluoride content. It cannot continuously update the adsorption surface, resulting in local adsorption saturation and underutilization of other parts. The device does not have a rapid sediment removal structure, and the sediment contains other heavy metal impurities and other harmful substances. Long-term accumulation will also cause potential harm to the interior of the device, and the device processing and cleaning efficiency is low. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the prior art, such as the inability to effectively remove fluoride ions in wastewater to reduce the fluorine content, the inability to continuously update the adsorption surface, resulting in local adsorption saturation while other parts are not fully utilized, the precipitate contains other harmful substances such as heavy metal impurities, and long-term accumulation will also cause potential harm to the inside of the device, and the device processing and cleaning efficiency is low.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a rare earth smelting wastewater defluorination device, comprising a main tank, the top of the main tank is connected to a feed port, the inside of the feed port is rotatably connected to a rotating rod, the outer surface of the rotating rod is fixedly sleeved with an activated carbon block, one end of the rotating rod is fixedly connected to a driven runner, the outer surface of the driven runner is transmission-connected to a synchronous belt, the inner surface of the synchronous belt is transmission-connected to a driving runner away from the driven runner, one side of the driving runner is fixedly connected to a main rod, the outer surface of the main rod is rotatably connected to the inside of the main tank, and the activated carbon block that rotates with the rotating rod will absorb fluorine in the wastewater while rotating, effectively removing fluoride ions in the wastewater, thereby reducing the fluoride content.

[0007] As a preferred embodiment, the outer surface of the main rod is fixedly connected to a plurality of stirring rods, and two of the stirring rods are fixedly connected to a scraper at one end away from the main rod. The two scrapers are arranged on the inner surface of the main tank at one side away from the stirring rod. The stirring rods and scrapers that rotate with the main rod will scrape off the sediment on the inner surface and drop it into the inside of the discharge pipe.

[0008] As a preferred embodiment, two L-shaped plates are fixedly connected to the side of the main tank away from the activated carbon block, and a motor is fixedly connected to the inner side of the two L-shaped plates. The output end of the motor is fixed to one end of the main rod. When the motor is energized, it will drive the main rod to rotate inside the main tank.

[0009] As a preferred embodiment, the bottom of the main tank is connected to a discharge pipe, one side of the discharge pipe is rotatably connected to a threaded rod, one end of the discharge pipe is threadedly connected to a first pipe cover, the sediment is pushed to one side of the discharge pipe, and the sediment can be removed by opening the first pipe cover.

[0010] As a preferred embodiment, one end of the threaded rod is fixedly connected to a rocker, and the outer surface of the threaded rod is threadedly connected to an internal thread block, so that the threaded rod is rotated by the rocker.

[0011] As a preferred embodiment, the outer surface of the internal thread block is fixedly connected to two limit bars, and the inner surface of the discharge pipe is provided with two limit grooves. The outer surface of the limit bar is movably embedded in the inside of the limit groove, and the limit bar on the outside of the internal thread block can only move along the groove direction of the limit groove.

[0012] As a preferred embodiment, the main tank is connected to a liquid outlet pipe on one side close to the L-shaped plate, and the liquid outlet pipe is threadedly connected to a second pipe cover on the side away from the main tank. The treated liquid can be discharged from the liquid outlet pipe by rotating the second pipe cover to open it.

[0013] As a preferred embodiment, two support plates are fixedly connected to the bottom of the main tank, and pressure plates are fixedly connected to the bottom of the two support plates. The support plates and pressure plates at the bottom of the device serve to fix and support the entire device.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are:

[0015] 1. The utility model is provided with an activated carbon block rotating adsorption structure, which can effectively remove fluoride ions in wastewater, thereby reducing the fluoride content, and can continuously update the adsorption surface, avoiding the situation where local adsorption is saturated while other parts are not fully utilized.

[0016] 2. The utility model is provided with a structure for quickly removing sediment. The sediment contains other harmful substances such as heavy metal impurities, which can be avoided by long-term accumulation, which may also cause potential harm to the inside of the device. The device has high processing and cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a rare earth smelting wastewater defluorination device provided by the utility model;

[0018] Figure 2 This is a side structural diagram of a rare earth smelting wastewater defluorination device provided by the utility model;

[0019] Figure 3 This is a schematic cross-sectional view of a rare earth smelting wastewater defluorination device provided by the utility model;

[0020] Figure 4 This is a schematic cross-sectional view of a rare earth smelting wastewater defluorination device provided by the utility model;

[0021] Figure 5 The utility model provides a rare earth smelting wastewater defluorination device Figure 3 Schematic diagram of the enlarged structure of A in the figure.

[0022] Legend:

[0023] 1. Main tank; 2. Feed inlet; 3. Rotating rod; 4. Activated carbon block; 5. Driven rotor; 6. Synchronous belt; 7. Driving rotor; 8. Main rod; 9. Stirring rod; 10. Scraper; 11. L-shaped plate; 12. Motor; 13. Discharge pipe; 14. Threaded rod; 15. First pipe cover; 16. Rocker; 17. Internal thread block; 18. Limiting strip; 19. Limiting groove; 20. Liquid discharge pipe; 21. Second pipe cover; 22. Support plate; 23. Pressure plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1 to 5 The utility model provides a technical solution: a defluorination device for rare earth smelting wastewater, comprising a main tank 1, the top of the main tank 1 is connected to a feed port 2, the inside of the feed port 2 is rotatably connected to a rotating rod 3, the outer surface of the rotating rod 3 is fixedly sleeved with an activated carbon block 4, one end of the rotating rod 3 is fixedly connected to a driven runner 5, the outer surface of the driven runner 5 is transmission-connected with a synchronous belt 6, the inner surface of the synchronous belt 6 is transmission-connected with a driving runner 7 away from the driven runner 5, one side of the driving runner 7 is fixedly connected to a main rod 8, the outer surface of the main rod 8 is rotationally connected to the inside of the main tank 1, and the driving runner 7 that rotates with the main rod 8 will drive the driven runner 5 under the transmission action of the synchronous belt 6 on the outer surface, and allow the rotating rod 3 to rotate inside the feed port 2.

[0026] like Figures 1 to 5 As shown, the outer surface of the main rod 8 is fixedly connected to multiple stirring rods 9, and the ends of the two stirring rods 9 away from the main rod 8 are fixedly connected to scrapers 10. The sides of the two scrapers 10 away from the stirring rods 9 are arranged on the inner surface of the main tank 1. The stirring rods 9 and scrapers 10 that rotate with the main rod 8 will scrape off the sediment on the inner surface and drop it into the inside of the discharge pipe 13.

[0027] like Figures 1 to 5 As shown, two L-shaped plates 11 are fixedly connected to the side of the main tank 1 away from the activated carbon block 4, and a motor 12 is fixedly connected to the inner side of the two L-shaped plates 11. The output end of the motor 12 is fixed to one end of the main rod 8, and the motor 12 is fixed to one side of the main tank 1 through the L-shaped plate 11.

[0028] like Figures 1 to 5 As shown, the bottom of the main tank 1 is connected to a discharge pipe 13, one side of the discharge pipe 13 is rotatably connected to a threaded rod 14, and one end of the discharge pipe 13 is threadedly connected to a first pipe cover 15. The sediment is pushed to one side of the discharge pipe 13, and the sediment can be removed by opening the first pipe cover 15.

[0029] like Figures 1 to 5 As shown, one end of the threaded rod 14 is fixedly connected to a rocker 16 , and the outer surface of the threaded rod 14 is threadedly connected to an internal thread block 17 , so that the threaded rod 14 can rotate through the rocker 16 .

[0030] like Figures 1 to 5As shown, the outer surface of the internal thread block 17 is fixedly connected to two limit bars 18, and the inner surface of the discharge pipe 13 is provided with two limit grooves 19. The outer surface of the limit bar 18 is movably embedded in the inner surface of the limit groove 19. Because the limit bar 18 on the outer side of the internal thread block 17 can only move along the groove direction of the limit groove 19, the rotating thread can drive the internal thread block 17 to move along the groove direction of the limit groove 19.

[0031] like Figures 1 to 5 As shown, the side of the main tank 1 close to the L-shaped plate 11 is connected to a liquid outlet pipe 20, and the side of the liquid outlet pipe 20 away from the main tank 1 is threadedly connected to a second pipe cover 21. By rotating and opening the second pipe cover 21, the treated liquid can be discharged from the liquid outlet pipe 20.

[0032] like Figures 1 to 5 As shown, two support plates 22 are fixedly connected to the bottom of the main tank 1, and a pressure plate 23 is fixedly connected to the bottom of the two support plates 22. The support plates 22 and the pressure plate 23 at the bottom of the device play a role in fixing and supporting the entire device.

[0033] Working principle: Pour the wastewater to be treated into the main tank 1 through the feed port 2. Start the external power supply of the motor 12 before pouring. The model of the motor 12 is DOY106, and the rated power is 750W. The motor 12 is fixed to one side of the main tank 1 through the L-shaped plate 11. After the motor 12 is energized, it will drive the main rod 8 to rotate inside the main tank 1. The active impeller 7 that rotates with the main rod 8 will drive the driven impeller 5 under the transmission action of the outer surface synchronous belt 6, and let the rotating rod 3 rotate inside the feed port 2. The activated carbon block 4 that rotates with the rotating rod 3 will absorb the fluorine in the wastewater while rotating, effectively removing the fluoride ions in the wastewater, thereby reducing the fluoride content, and can continuously update the adsorption surface to avoid the situation where local adsorption is saturated while other parts are not fully utilized. After the initial defluorination, aluminum oxide particles are added to the wastewater, and the fluoride ions can It adheres to the surface of activated alumina by physical adsorption and chemical adsorption, and forms a precipitate, which adheres to the inner surface of the main tank 1. The stirring rod 9 and scraper 10 that rotate with the main rod 8 will scrape the precipitate on the inner surface and drop it into the inside of the discharge pipe 13. Then the threaded rod 14 is rotated by the rocker 16, and the rotating thread will drive the internal thread block 17. Because the limiting strip 18 on the outside of the internal thread block 17 can only move along the groove direction of the limiting groove 19, the rotating thread can drive the internal thread block 17 to move along the groove direction of the limiting groove 19 and push the precipitate to the side of the discharge pipe 13. The precipitate can be removed by opening the first tube cover 15, and the treated liquid can be discharged from the liquid outlet pipe 20 by rotating and opening the second tube cover 21. The support plate 22 and pressure plate 23 at the bottom of the device play the role of fixing and supporting the entire device.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A rare earth smelting wastewater defluorination device, comprising a main tank (1), characterized in that: The top of the main tank (1) is connected to a feed port (2), the feed port (2) is internally rotatably connected to a rotating rod (3), the outer surface of the rotating rod (3) is fixedly sleeved with an activated carbon block (4), one end of the rotating rod (3) is fixedly connected to a driven runner (5), the outer surface of the driven runner (5) is transmission-connected to a synchronous belt (6), the inner surface of the synchronous belt (6) away from the driven runner (5) is transmission-connected to a driving runner (7), one side of the driving runner (7) is fixedly connected to a main rod (8), and the outer surface of the main rod (8) is rotationally connected to the inside of the main tank (1).

2. A rare earth smelting wastewater defluorination device according to claim 1, characterized in that: The outer surface of the main rod (8) is fixedly connected to a plurality of stirring rods (9), and one end of two stirring rods (9) away from the main rod (8) is fixedly connected to a scraper (10), and the side of the two scrapers (10) away from the stirring rod (9) is arranged on the inner surface of the main tank (1).

3. A rare earth smelting wastewater defluorination device according to claim 2, characterized in that: Two L-shaped plates (11) are fixedly connected to one side of the main tank (1) away from the activated carbon block (4), a motor (12) is fixedly connected to the inner sides of the two L-shaped plates (11), and an output end of the motor (12) is fixed to one end of the main rod (8).

4. A rare earth smelting wastewater defluorination device according to claim 3, characterized in that: The bottom of the main tank (1) is connected to a discharge pipe (13), one side of the discharge pipe (13) is rotatably connected to a threaded rod (14), and one end of the discharge pipe (13) is threadedly connected to a first pipe cover (15).

5. A rare earth smelting wastewater defluorination device according to claim 4, characterized in that: One end of the threaded rod (14) is fixedly connected to a rocker (16), and the outer surface of the threaded rod (14) is threadedly connected to an internal thread block (17).

6. A rare earth smelting wastewater defluorination device according to claim 5, characterized in that: The outer surface of the internal thread block (17) is fixedly connected to two limit bars (18), the inner surface of the discharge pipe (13) is provided with two limit grooves (19), and the outer surface of the limit bar (18) is movably embedded in the inner surface of the limit groove (19).

7. A rare earth smelting wastewater defluorination device according to claim 6, characterized in that: A side of the main tank (1) close to the L-shaped plate (11) is connected to a liquid outlet pipe (20), and a side of the liquid outlet pipe (20) away from the main tank (1) is threadedly connected to a second pipe cover (21).

8. A rare earth smelting wastewater defluorination device according to claim 7, characterized in that: Two support plates (22) are fixedly connected to the bottom of the main tank (1), and pressure plates (23) are fixedly connected to the bottoms of the two support plates (22).

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