Rare earth wastewater treatment device

Abstract

The utility model relates to the technical field of rare earth wastewater treatment, and discloses a rare earth wastewater treatment device which comprises a treatment tank, and a catalyst adding mechanism is arranged at the top of the treatment tank; through cooperation of a treatment tank, a mixing mechanism, a discharging pipe and a filtering and flow dividing mechanism, the mixing mechanism rapidly stirs rare earth wastewater, so that the mixing efficiency of a catalyst and the wastewater is improved, the efficiency of generating precipitates in the wastewater is improved, and the mixed wastewater falls into a filtering inner cylinder in a water filtering cylinder through the discharging pipe; sediments are blocked and stored in the filtering inner cylinder through the filtering inner cylinder, waste water in the water filtering cylinder is stood, redundant waste water enters the water dividing cavity of the water filtering cylinder through the filtering holes of the filtering inner cylinder, solid-liquid separation in the waste water is convenient and fast, the recovery efficiency of rare earth is improved, and the waste water in the treatment tank can be treated again after being discharged. Therefore, the treatment efficiency of the rare earth wastewater is improved.

Description

Technical Field

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

[0002] Rare earths are generally separated in the form of oxides. Although they have extremely large reserves on the earth, the smelting and purification are difficult, making them appear relatively scarce, thus getting the name "rare earth". Rare earth elements have been widely used in fields such as petroleum, chemical industry, metallurgy, textile, ceramics, glass, and permanent magnet materials. Wastewater is generated during the production of rare earth oxides, and the wastewater needs to be treated by a treatment device before it can be discharged;

[0003] In the prior art, the Chinese utility model content with the application number: CN202321790353.7 discloses a rare earth wastewater treatment device, including a cylinder body. An annular fixing plate is provided on the inner wall of the lower end of the cylinder body. A bearing I is fixedly connected to the inner ring of the annular fixing plate. A filter cylinder is connected to the inner ring of the bearing I. The upper end of the filter cylinder is rotationally connected to the top wall of the cylinder body through a bearing II; the side wall of the filter cylinder is a closed cylinder and the bottom is a filter net; below the filter cylinder and inside the cylinder body, there is also a baffle plate, and an electronic valve is provided on the baffle plate; below the baffle plate, there is an inclined diversion platform. Thus, this utility model can simplify the operation of rare earth recovery, improve the recovery efficiency, and reduce the cost of rare earth recovery from wastewater;

[0004] Although the above technical solution is convenient for recovering rare earth, after discharging the wastewater, the filter bag inside the cylinder body needs to be taken out to recover the rare earth, and when treating the wastewater again, the filter bag needs to be re-laid, the operation is relatively complex, and the efficiency of rare earth recovery is reduced. Therefore, we need to propose a rare earth wastewater treatment device. Utility Model Content

[0005] The purpose of the utility model is to provide a rare earth wastewater treatment device, which is convenient for quickly discharging the wastewater, separating the rare earth from the wastewater during the discharging process, improving the collection efficiency of the rare earth, and reducing the manual operation steps, so as to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A rare earth wastewater treatment device, including a treatment tank, a catalyst adding mechanism is arranged at the top of the treatment tank, a mixing mechanism is arranged at the top of the inner cavity of the treatment tank, and a filtering and shunting mechanism is detachably connected below the treatment tank;

[0007] The filtering and shunting mechanism includes a water filtering cylinder, a filtering inner cylinder is arranged in the inner cavity of the water filtering cylinder, a water dividing cavity is arranged between the filtering inner cylinder and the water filtering cylinder, a sealing cover is rotatably connected to the lower surface of the water filtering cylinder, a gasket is bonded to the upper surface of the sealing cover, a locking bolt inserted into the lower surface of the sealing cover and bolted to the water filtering cylinder is provided, an external thread ring communicated with the filtering inner cylinder is arranged on the upper surface of the water filtering cylinder, a feeding pipe is communicated with the lower end of the treatment tank, and the external thread ring is threadedly connected to the lower end of the inner wall of the feeding pipe.

[0008] Preferably, a drain pipe is arranged at the lower end of the outer side of the water filtering cylinder, a third solenoid valve is arranged at the water outlet end of the drain pipe, and a second solenoid valve is arranged at the discharging end of the feeding pipe.

[0009] Preferably, a sealing washer is sleeved on the lower end of the outer side of the external thread ring, the outer diameter of the sealing washer is the same as the outer diameter of the feeding pipe, and the outer diameter of the water filtering cylinder is larger than the outer diameter of the feeding pipe.

[0010] Preferably, the mixing mechanism includes a motor and a mounting seat, the output shaft of the motor is drivingly connected with a rotating shaft, the lower end of the rotating shaft penetrates through the treatment tank and is fixedly connected to the mounting seat, a plurality of stirring rods are fixedly connected to the outer side of the mounting seat, and scraping plates abutted against the inner wall of the treatment tank are fixedly connected to one ends of the plurality of stirring rods relative to the mounting seat.

[0011] Preferably, the cross section of the scraping plate is arranged in a V shape, one end of the scraping plate is slidably connected to the upper end of the inner wall of the feeding pipe, and the bottom of the treatment tank is arranged in a conical cylinder shape.

[0012] Preferably, the catalyst adding mechanism includes a metering cylinder and a connecting pipe inserted into the top of the treatment tank, the upper end of the connecting pipe is communicated with the metering cylinder, a scale groove is arranged on the outer side of the metering cylinder, and a first solenoid valve is installed at one end of the connecting pipe.

[0013] Preferably, a sewage inlet pipe is fixedly connected to the top of the treatment tank, a control box is installed on the outer side of the treatment tank, and a plurality of support rods are fixedly connected to the lower end of the treatment tank, and a chassis is fixedly connected to the lower ends of the plurality of support rods.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model mainly realizes the cooperation among a treatment tank, a mixing mechanism, a blanking pipe and a filtering and shunting mechanism. The mixing mechanism rapidly stirs rare earth wastewater, thereby accelerating the mixing efficiency of the catalyst and the wastewater, accelerating the generation efficiency of precipitates in the wastewater, and the mixed wastewater falls into the inner filtering cylinder in a water filtering cylinder through the blanking pipe. The precipitates are blocked and stored in the inner filtering cylinder by the inner filtering cylinder, the wastewater in the water filtering cylinder is allowed to stand, and the excess wastewater enters the water distribution cavity of the water filtering cylinder through the filter holes of the inner filtering cylinder, which is convenient for quickly separating solid and liquid in the wastewater and accelerating the recovery efficiency of rare earth. After the wastewater in the treatment tank is discharged, the treatment of rare earth wastewater can be carried out again, thereby improving the treatment efficiency of rare earth wastewater. Brief Description of the Drawings

[0016] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 is a sectional structural schematic diagram of the treatment tank of the utility model;

[0018] Figure 3 is a structural schematic diagram of the filtering and shunting mechanism of the utility model.

[0019] In the figure: 1, treatment tank; 2, control box; 3, sewage inlet pipe; 4, catalyst adding mechanism; 41, measuring cylinder; 42, connecting pipe; 43, first solenoid valve; 44, scale groove; 5, mixing mechanism; 51, motor; 52, rotating shaft; 53, mounting seat; 54, stirring rod; 55, scraping plate; 6, blanking pipe; 7, second solenoid valve; 8, filtering and shunting mechanism; 81, water filtering cylinder; 82, external thread ring; 83, sealing gasket; 84, inner filtering cylinder; 85, water distribution cavity; 86, drain pipe; 87, third solenoid valve; 88, sealing cover; 89, gasket; 810, locking bolt; 9, support rod; 10, chassis. Detailed Description of the Preferred Embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-3 , the present utility model provides a technical solution: a rare earth wastewater treatment device, including a treatment tank 1, a catalyst adding mechanism 4 is arranged at the top of the treatment tank 1, a mixing mechanism 5 is arranged at the top of the inner cavity of the treatment tank 1, and a filtering and shunting mechanism 8 is detachably connected below the treatment tank 1;

[0022] The filtering and diverting mechanism 8 includes a water filtering cylinder 81. A filtering inner cylinder 84 is arranged in the inner cavity of the water filtering cylinder 81. A water diversion cavity 85 is arranged between the filtering inner cylinder 84 and the water filtering cylinder 81. The lower surface of the water filtering cylinder 81 is rotatably connected with a sealing cover 88. A gasket 89 is bonded to the upper surface of the sealing cover 88. The lower surface of the sealing cover 88 is inserted with a locking bolt 810 bolted to the water filtering cylinder 81. An external thread ring 82 communicated with the filtering inner cylinder 84 is arranged on the upper surface of the water filtering cylinder 81. The lower end of the treatment tank 1 is communicated with a blanking pipe 6. The external thread ring 82 is threadedly connected to the lower end of the inner wall of the blanking pipe 6.

[0023] A drain pipe 86 is arranged at the lower end of the outer side of the water filtering cylinder 81. A third electromagnetic valve 87 is arranged at the water outlet end of the drain pipe 86. A second electromagnetic valve 7 is arranged at the discharge end of the blanking pipe 6. Through the blanking pipe 6, it is convenient to discharge the wastewater to the filtering and diverting mechanism 8, so as to separate the solid and liquid in the wastewater, improve the collection efficiency of the sediment in the wastewater, and shorten the treatment time of the rare earth recovery from the wastewater.

[0024] A sealing washer 83 is sleeved on the lower end of the outer side of the external thread ring 82. The outer diameter of the sealing washer 83 is the same as the outer diameter of the blanking pipe 6. The outer diameter of the water filtering cylinder 81 is larger than the outer diameter of the blanking pipe 6. The sealing washer 83 improves the sealing performance after the installation of the water filtering cylinder 81.

[0025] The mixing mechanism 5 includes a motor 51 and a mounting seat 53. The output shaft of the motor 51 is drivingly connected with a rotating shaft 52. The lower end of the rotating shaft 52 penetrates through the treatment tank 1 and is fixedly connected to the mounting seat 53. A plurality of stirring rods 54 are fixedly connected to the outer side of the mounting seat 53. One ends of the plurality of stirring rods 54 opposite to the mounting seat 53 are fixedly connected with scraping plates 55 abutted against the inner wall of the treatment tank 1. By driving the mounting seat 53 to rotate through the motor 51, the mounting seat 53 drives the plurality of stirring rods 54 to improve the mixing efficiency of the rare earth wastewater and the alkaline precipitant, and at the same time avoid the sediment blocking the blanking pipe 6 when discharging the wastewater.

[0026] The cross section of the scraping plate 55 is arranged in a V shape. One end of the scraping plate 55 is slidably connected to the upper end of the inner wall of the blanking pipe 6. The bottom of the treatment tank 1 is arranged in a conical cylinder shape. By means of the scraping plate 55, it is convenient to scrape the sediment on the inner wall of the treatment tank 1 when discharging the wastewater, and avoid the sediment adhering to the inner wall of the treatment tank 1.

[0027] The catalyst adding mechanism 4 includes a metering cylinder 41 and a connecting pipe 42 inserted into the top of the treatment tank 1. The upper end of the connecting pipe 42 is communicated with the metering cylinder 41. A scale groove 44 is arranged on the outer side of the metering cylinder 41. A first electromagnetic valve 43 is arranged at one end of the connecting pipe 42. By means of the scale groove 44 on the metering cylinder 41, it is convenient to control the alkaline catalyst input into the treatment tank, so as to facilitate the coagulation and precipitation treatment of the rare earth wastewater.

[0028] The top of the treatment tank 1 is fixedly connected with a sewage inlet pipe 3. A control box 2 is installed outside the treatment tank 1. The lower end of the treatment tank 1 is fixedly connected with multiple groups of support rods 9. The lower ends of the multiple groups of support rods 9 are fixedly connected with a chassis 10. The overall stability is improved through the chassis 10 and the multiple groups of support rods 9. Moreover, the outer side of the chassis 10 is inclined, which is convenient for using an external trolley (not shown in the figure) to move under the sealing cover 88 to collect the sediment.

[0029] During use, the rare earth wastewater is injected into the treatment tank 1 through the sewage inlet pipe 3. At the same time, a quantitative alkaline precipitant is added to the measuring cylinder 41 of the catalyst adding mechanism 4. When the motor 51 drives the rotating shaft 52 to drive the mounting seat 53 to rotate, the mounting seat 53 drives multiple groups of stirring rods 54 to stir the rare earth wastewater. The control box 2 is used to open the first solenoid valve 43 to make the alkaline precipitant fall into the treatment tank at a uniform speed, so that the rare earth wastewater is evenly mixed with the alkaline precipitant, improving the mixing efficiency and causing precipitation in the rare earth wastewater. The second solenoid valve 7 is opened to make the rare earth wastewater and the sediment fall into the inner filtering cylinder 84 synchronously. The wastewater seeps into the water distribution cavity 85 through the filter holes. The third solenoid valve 87 is opened to discharge the wastewater. The sediment generated by the mixing is concentrated in the inner filtering cylinder 84. During the process of standing for a period of time, the second solenoid valve 7 is closed and the above operations are repeated to continuously precipitate the rare earth wastewater. And when the wastewater needs to be discharged, the sealing cover 88 is opened to discharge the sediment in the inner filtering cylinder 84. The sealing cover 88 is closed and then the second solenoid valve 7 is opened. Repeating this process improves the collection efficiency of the sediment in the rare earth wastewater and the treatment efficiency of the wastewater.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rare earth wastewater treatment device, comprising a treatment tank (1), characterized in that: A catalyst addition mechanism (4) is provided at the top of the treatment tank (1), a mixing mechanism (5) is provided at the top of the inner cavity of the treatment tank (1), and a filtering and diverting mechanism (8) is detachably connected below the treatment tank (1); The filtering and diverting mechanism (8) includes a water filtering cylinder (81), a filtering inner cylinder (84) is arranged in the inner cavity of the water filtering cylinder (81), a water diversion cavity (85) is arranged between the filtering inner cylinder (84) and the water filtering cylinder (81), the lower surface of the water filtering cylinder (81) is rotatably connected with a sealing cover (88), a gasket (89) is bonded on the upper surface of the sealing cover (88), a locking bolt (810) bolted to the water filtering cylinder (81) is inserted into the lower surface of the sealing cover (88), an external thread ring (82) communicated with the filtering inner cylinder (84) is arranged on the upper surface of the water filtering cylinder (81), a feeding pipe (6) is communicated with the lower end of the treatment tank (1), and the external thread ring (82) is threadedly connected to the lower end of the inner wall of the feeding pipe (6).

2. The rare earth wastewater treatment device according to claim 1, characterized in that: A drain pipe (86) is arranged at the lower end of the outer side of the water filtering cylinder (81), a third electromagnetic valve (87) is arranged at the water outlet end of the drain pipe (86), and a second electromagnetic valve (7) is arranged at the discharging end of the feeding pipe (6).

3. The rare earth wastewater treatment device according to claim 2, characterized in that: A sealing gasket (83) is sleeved on the lower end of the outer side of the external thread ring (82), the outer diameter of the sealing gasket (83) is the same as the outer diameter of the feeding pipe (6), and the outer diameter of the water filtering cylinder (81) is larger than the outer diameter of the feeding pipe (6).

4. The rare earth wastewater treatment device according to claim 3, characterized in that: The mixing mechanism (5) includes a motor (51) and a mounting seat (53), the output shaft of the motor (51) is drivingly connected with a rotating shaft (52), the lower end of the rotating shaft (52) penetrates through the treatment tank (1) and is fixedly connected to the mounting seat (53), a plurality of groups of stirring rods (54) are fixedly connected to the outer side of the mounting seat (53), and scraping plates (55) abutted against the inner wall of the treatment tank (1) are fixedly connected to one ends of the plurality of groups of stirring rods (54) relative to the mounting seat (53).

5. The rare earth wastewater treatment device according to claim 4, wherein: The cross section of the scraping plate (55) is arranged in a V shape, one end of the scraping plate (55) is slidably connected to the upper end of the inner wall of the feeding pipe (6), and the bottom of the treatment tank (1) is arranged in a conical cylinder shape.

6. The rare earth wastewater treatment device according to claim 5, wherein: The catalyst addition mechanism (4) includes a metering cylinder (41) and a connecting pipe (42) inserted into the top of the treatment tank (1), the upper end of the connecting pipe (42) is communicated with the metering cylinder (41), a scale groove (44) is arranged on the outer side of the metering cylinder (41), and a first electromagnetic valve (43) is installed at one end of the connecting pipe (42).

7. A rare earth wastewater treatment device according to claim 1, characterized in that: A sewage inlet pipe (3) is fixedly connected to the top of the treatment tank (1), a control box (2) is installed on the outer side of the treatment tank (1), a plurality of groups of support rods (9) are fixedly connected to the lower end of the treatment tank (1), and a chassis (10) is fixedly connected to the lower ends of the plurality of groups of support rods (9).

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