A rare earth polishing powder production wastewater zero discharge equipment and discharge method

Abstract

The invention discloses a rare earth polishing powder production wastewater zero-discharge equipment and a discharge method, belonging to the technical field of rare earth polishing powder production wastewater purification, comprising an aeration tank body, wherein a water outlet valve is provided inside the aeration tank body, a medicine injection piece is installed inside the aeration tank body, and a material injection pipe network is laid inside the aeration tank body; a secondary filter screen, wherein the secondary filter screen is installed between the aeration tank body and a communication storage tank, both sides of the secondary filter screen are tightened and wound with a first rotating shaft rod, and first rotating shaft plates are installed at both ends of the first rotating shaft rod; a communication storage tank, wherein the communication storage tank is installed below the aeration tank body, and a contact sealing groove is provided at the connection between the communication storage tank and the aeration tank body; by arranging structures such as the medicine injection piece, a variety of means such as chemical reaction, ultraviolet irradiation and physical filtration are combined, and the purification efficiency of wastewater is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of rare earth polishing powder production wastewater purification, and more specifically, to a rare earth polishing powder production wastewater zero-discharge equipment and a discharge method. Background Art

[0002] With the rapid development of the rare earth industry, rare earth polishing powder, as an important production raw material, is widely used in various precision machining fields;

[0003] Rare earth polishing powder production wastewater usually contains a large amount of rare earth elements, heavy metal ions, suspended solids and other organic pollutants. If it is discharged directly without treatment, it will inevitably cause serious pollution to the environment and may lead to a waste of rare earth resources.

[0004] There are still some problems in the treatment of rare earth polishing powder production wastewater on the market, such as;

[0005] Existing technologies usually rely on a single treatment method, such as membrane filtration, chemical precipitation, etc. These methods are often unable to simultaneously and efficiently treat multiple pollutants in wastewater in practical applications;

[0006] Secondly, the design of traditional wastewater treatment equipment is mostly aimed at the removal of a specific pollutant, lacking the comprehensive treatment capabilities for complex wastewater components, resulting in unstable treatment effects and high treatment costs;

[0007] Therefore, we designed a rare earth polishing powder production wastewater zero discharge equipment and discharge method that can effectively treat complex pollutants in the wastewater. Summary of the invention

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A rare earth polishing powder production wastewater zero discharge equipment, comprising:

[0010] An aeration tank body, wherein a water outlet valve is provided inside the aeration tank body, a drug injection part is installed inside the aeration tank body, and a material injection pipe network is laid inside the aeration tank body;

[0011] A connecting storage pool, wherein the connecting storage pool is installed below the aeration tank body, and a sealing groove is provided at the connection between the connecting storage pool and the aeration tank body;

[0012] A secondary filter screen is installed between the aeration tank body and the connected storage tank. A first rotating shaft is gathered and wound around both sides of the secondary filter screen. First rotating shaft plates are installed at both ends of the first rotating shaft. The first rotating shaft plates are installed on the surface of the aeration tank body and the connected storage tank. Second rotating shafts are installed at both ends of the aeration tank body close to the first rotating shaft. The second rotating shaft and the secondary filter screen are movably abutted and overlapped.

[0013] Furthermore, the injection piece includes a disassembly connection block, a rotating central axis, a positioning ring, an ultraviolet lamp plate, a pipe network connection opening, a rotating shaft seat, a positioning base, and a discharge pipe port;

[0014] The positioning base is installed on the top of the injection pipe network, the pipe network connection opening is opened at the bottom of the positioning base, the rotating shaft seat is installed on the top of the positioning base, the rotating central axis is rotatably connected to the top of the rotating shaft seat, the ultraviolet lamp board is movably overlapped on the surface of the rotating central axis, the discharge pipe port is opened between the two ultraviolet lamp boards and passes through the inside of the rotating central axis, the positioning rings are installed at both ends of the ultraviolet lamp boards and movably connected to the surface of the rotating central axis, and the disassembly connection block is installed on the top of the rotating central axis.

[0015] Furthermore, a starting motor is installed inside the disassembly connecting block, and a first rotating lubricating ring is installed at the bottom of the disassembly connecting block, and a first engaging wheel is movably clamped inside the first rotating lubricating ring, and the starting motor passes through the first rotating lubricating ring and is connected to the top of the rotating central shaft, and the rotating central shaft is rotatably connected to the disassembly connecting block through the connection and the first engaging wheel and the first rotating lubricating ring, and the first engaging wheel is movably connected to the top of the rotating central shaft, and a groove matching the clamping of the first rotating lubricating ring is provided inside the first rotating lubricating ring, and a second feed pipe is connected to the inside of the rotating central shaft, and the discharge pipe port is through-connected to the surface of the second feed pipe, and a pipeline middle bearing component is connected to the bottom of the second feed pipe, and the pipeline middle bearing component is installed at the axis center of the rotating shaft seat, and the bottom of the pipeline middle bearing component is connected to the first feed pipe, and the bottom of the first feed pipe is through-connected to the injection pipe network.

[0016] Furthermore, the rotating shaft seat is installed in a layered design, the upper layer of the rotating shaft seat is provided with an interlocking wheel sleeve, the lower layer of the rotating shaft seat is installed with a first interlocking wheel, the interior of the first interlocking wheel is penetrated by an electrically controlled top support rod, the electrically controlled top support rod is installed in a T-shaped structure, a roller is installed on one side of the electrically controlled top support rod close to the interlocking wheel sleeve, and the supporting dimensions of the roller and the interlocking wheel sleeve at the top of the electrically controlled top support rod match.

[0017] Furthermore, the pipeline center bearing member includes a pipeline center bearing base, a chimeric sealing block, a pipeline receiving wall, a second chimeric wheel, and a center bearing hose;

[0018] The pipe center bearing base is symmetrically installed on the top and bottom of the rotating shaft seat, and the pipe center bearing base is symmetrically installed with the center bearing hose as the axis. The mosaic sealing block is installed between the pipe center bearing base and the rotating shaft seat, and is used to fix the connection between the pipe center bearing base and the rotating shaft seat. The pipe receiving wall is installed on one side of the mosaic sealing block, and a bayonet is provided on the side of the pipe receiving wall close to the center bearing hose. The second mosaic wheel is installed in the bayonet, and the center bearing hose is installed between the two pipe receiving walls. The second mosaic wheel is installed at both ends of the center bearing hose. The center bearing hose is made of elastic and soft material, and both sides of the center bearing hose close to the pipe receiving wall are fixedly connected to the pipe receiving wall to maintain the sealing effect of the pipe center bearing.

[0019] Furthermore, the inner walls of the aeration tank body and the connected collection tank are both provided with abutment sealing grooves, a top support spring column is installed inside the abutment sealing groove, a first pressing wheel is installed on the side of the top support spring column close to the secondary filter, the first pressing wheel is made of soft material, and the boundary point of the maximum extrusion diameter range of the first pressing wheel is one third of the lateral diameter of the first pressing wheel.

[0020] Furthermore, a pulling and gathering net rope is installed inside the secondary filter screen, and thickened sealing net walls are installed on both sides of the secondary filter screen. The two ends of the pulling and gathering net rope are distributed on both sides of the axis of the secondary filter screen with the axis of the secondary filter screen as the boundary. The secondary filter screen and the pulling and gathering net rope are both made of soft materials. The surface fixing sleeve of the pulling and gathering net rope is provided with a pulling soft seat, and an elastic rod is installed between the two pulling soft seats. The elastic rod sleeve is arranged on the surface of the pulling and gathering net rope. The elastic rod is also made of elastic material, and the surface of the elastic rod is provided with flocculent collecting sticky whiskers, and the surface of the flocculent collecting sticky whiskers is provided with barbed needle thorns.

[0021] Furthermore, an electrically controlled rotating shaft sleeve is provided on the surface of the positioning ring, the number of electrically controlled rotating shaft sleeves installed matches the number of ultraviolet lamp boards installed, the electrically controlled rotating shaft sleeve is used to control the connection angle of the ultraviolet lamp board, a light diffusion groove is provided on the surface of the ultraviolet lamp board, and an ultraviolet lamp tube is installed inside the ultraviolet lamp board.

[0022] A method for discharging wastewater from a zero-discharge device for producing rare earth polishing powder, comprising the following steps:

[0023] 1. Inject the reagent into the aeration tank through the injection device to carry out the drug reduction reaction to remove pollutants in the wastewater;

[0024] 2. During the drug reduction reaction, rotate the drug injection piece to speed up the mixing reaction of wastewater and drugs;

[0025] 3. Debug the UV lamp board and use it to enhance the reaction effect of the agent;

[0026] 4. Start the first rotating shaft to collect floccules on the surface of the wastewater through the secondary filter;

[0027] 5. Detect the treated wastewater discharged from the outlet valve to observe whether the wastewater meets the zero discharge standard;

[0028] 6. During the wastewater treatment process, the equipment is regularly cleaned and maintained by disassembling the connection block and rotating the central shaft;

[0029] 7. Test the composition of wastewater injected into the aeration tank each time with samples, and replace the reagents in the injection pipe network based on the characteristics of the wastewater composition.

[0030] In summary, the present invention has the following beneficial effects:

[0031] By setting up structures such as drug injection parts and combining chemical reactions, ultraviolet irradiation and physical filtration, the purification efficiency of wastewater is effectively improved;

[0032] Through the multiple treatment links set up in the device, it is ultimately ensured that the wastewater is discharged harmlessly and meets environmental protection requirements;

[0033] In addition, structures such as the injection parts can be disassembled, thereby ensuring the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0035] Figure 1 It is a schematic diagram of the connection structure of the aeration tank body and the connected storage tank of the present invention;

[0036] Figure 2 This is a schematic diagram of the structure of the drug injection piece of the present invention;

[0037] Figure 3 It is a schematic diagram of a partial cross-sectional structure of the drug injection piece of the present invention;

[0038] Figure 4 It is a schematic diagram of a partial cross-sectional structure of the rotating shaft seat of the present invention;

[0039] Figure 5 It is a partial cross-sectional structural schematic diagram of the pipe center support of the present invention;

[0040] Figure 6 It is a schematic diagram of the local structure of the connection between the aeration tank body and the connected storage tank of the present invention;

[0041] Figure 7 A schematic diagram of a partially enlarged structure of the secondary filter of the present invention;

[0042] Figure 8 A schematic diagram of a partially enlarged structure of the pulling and gathering net rope of the present invention;

[0043] Fig. 9 A schematic diagram of the structure of the installation position of the disassembly rod and the disassembly card of the present invention;

[0044] Fig.10 It is a schematic diagram of a partial cross-sectional structure of the ultraviolet lamp panel of the present invention.

[0045] In the figure:

[0046] 1. Aeration tank body; 2. Connecting storage tank; 3. Injection parts; 4. First rotating shaft plate; 5. Secondary filter screen; 6. First rotating shaft rod; 7. Second rotating shaft rod; 8. Sealing groove; 9. Injection pipe network; 10. Water outlet valve port; 11. Rotating center axis; 12. Disassembly connection block; 13. Positioning ring; 14. Ultraviolet lamp board; 15. Pipe network connection opening; 16. Rotating shaft seat; 17. Positioning base; 18. Discharge pipe port; 19. First feed pipe; 20. Second feed pipe; 21. Pipeline center bearing; 23. Start motor; 24. The first rotating lubrication ring; 25, the first interlocking wheel; 26, the interlocking wheel sleeve; 27, the electrically controlled top support rod; 28, the pipe middle support base; 29, the interlocking sealing block; 30, the pipe receiving wall; 31, the second interlocking wheel; 32, the middle support hose; 33, the top support spring column; 35, the first pressing wheel; 36, the thickened sealing mesh wall; 37, the pulling and gathering net rope; 38, the pulling soft seat; 39, the elastic rod; 40, the flocculation collection sticky whisker; 41, the disassembly plug rod; 42, the disassembly card plate; 43, the electrically controlled rotating shaft sleeve; 45, the light diffusion groove; 46, the ultraviolet lamp tube. DETAILED DESCRIPTION

[0047] 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 described embodiments 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 creative work are within the scope of protection of the present invention. Example

[0048] The following is combined with Figure 1-10 The present invention is described in further detail.

[0049] See also Figure 1-10 The present invention provides a technical solution: a rare earth polishing powder production wastewater zero discharge equipment, such as Figure 1-10As shown, it includes an aeration tank body 1, a water outlet valve port 10 is opened inside the aeration tank body 1, a drug injection part 3 is installed inside the aeration tank body 1, and a material injection pipe network 9 is laid inside the aeration tank body 1;

[0050] The connecting storage pool 2 is installed below the aeration pool body 1, and a sealing groove 8 is provided at the connection between the connecting storage pool 2 and the aeration pool body 1;

[0051] A secondary filter screen 5 is installed between the aeration tank body 1 and the connected storage tank 2. The two sides of the secondary filter screen 5 are both wrapped with a first rotating shaft 6. The two ends of the first rotating shaft 6 are installed with a first rotating shaft plate 4. The first rotating shaft plate 4 is installed on the surface of the aeration tank body 1 and the connected storage tank 2. The two ends of the aeration tank body 1 close to the first rotating shaft 6 are installed with a second rotating shaft 7. The second rotating shaft 7 and the secondary filter screen 5 are movably abutted and overlapped.

[0052] In this embodiment, by providing the drug injection part 3 and other related structures, the device can effectively complete the flocculation and precipitation of the wastewater inside the aeration tank body 1 during the exposure process, and perform redox reaction. During this process, in order to ensure the use efficacy of the aeration tank body 1, especially to enhance the drug mixing effect of the aeration tank body 1 on the internal wastewater during use, the outlet valve port 10 is opened to ensure that the aeration tank body 1 can quickly flow to the next operation unit after the internal wastewater is treated.

[0053] like Figure 1-10 As shown, the injection piece 3 includes a disassembly connection block 12, a rotating central axis 11, a positioning ring 13, an ultraviolet lamp plate 14, a pipe network connection opening 15, a rotating shaft seat 16, a positioning base 17, and a discharge pipe port 18;

[0054] The positioning base 17 is installed on the top of the injection pipe network 9, the pipe network connection opening 15 is opened at the bottom of the positioning base 17, the rotating shaft seat 16 is installed on the top of the positioning base 17, the rotating central axis 11 is rotatably connected to the top of the rotating shaft seat 16, the ultraviolet lamp board 14 is movably overlapped on the surface of the rotating central axis 11, the discharge pipe port 18 is opened between the two ultraviolet lamp boards 14, and at the same time passes through the inside of the rotating central axis 11, the positioning ring 13 is installed at both ends of the ultraviolet lamp board 14, and is movably connected to the surface of the rotating central axis 11, and the disassembly connection block 12 is installed on the top of the rotating central axis 11.

[0055] In this embodiment: by installing the injection piece 3 and the related structure of the injection piece 3, it can be seen that the injection piece 3 is fixed by the positioning base 17 and the bottom of the aeration tank body 1 during use, so as to complete the base installation of the injection piece 3. During use, it should be noted that the ultraviolet lamp board 14 is set with a transparent material, and the interior of the ultraviolet lamp board 14 is set in a prismatic shape to diffuse the light, so that the ultraviolet rays in the aeration tank body 1 and the ultraviolet rays entering the aeration tank body 1 can be enhanced, and the pipe network connection opening 15 and the water outlet valve port 10 are engaged, so that the water outlet valve port 10 is directly connected to the rotating central axis 1 1 is connected to ensure that the injection piece 3 can be directly used as the origin of the drug spraying to spray nearby, thereby ensuring that the interior of the aeration tank body 1 can be divided into regions with the injection piece 3 as the axis through the installation of the injection piece 3, so that in the process of requiring the wastewater inside the aeration tank body 1 to undergo a drug reduction reaction, the drug injection effect inside the aeration tank body 1 can be ensured. At the same time, through the setting of the rotating shaft seat 16, the rotating central axis 11 can be rotated by the rotating shaft seat 16 with the rotating shaft seat 16 as the axis, and in the process of rotation, the surrounding wastewater can be effectively stirred, thereby ensuring that it can accelerate the mixing effect of the surrounding wastewater;

[0056] In order to effectively implement the subsequent flocculation treatment method, it is necessary to supplement the disassembly function of the injection piece 3. The rotating central axis 11 is the bearing body of the injection piece 3, and the rotating shaft seat 16 at the bottom is plug-in installed. When disassembly is required, a caliper with matching teeth on the surface of the disassembly connection block 12 is installed inside, two in a group, and the cross-sectional shape of the caliper is L-shaped, which is clamped on the surface and bottom of the disassembly connection block 12 and directly lifted. During the lifting process, the disassembly connection block 12 drives the rotating central axis 11 is directly lifted and disassembled from the top of the rotating shaft seat 16. By setting the length of the caliper, a group of multiple pieces can be disassembled at one time to ensure the disassembly effect of the injection piece 3, so that the disassembled injection piece 3 can be effectively cleaned. Of course, there is more than one disassembly method here. It is also possible to directly use strip clamps for clamping disassembly. The disassembly and cleaning cycle is three times of wastewater treatment in the aeration tank body 1. At this time, the disassembly and replacement are the best. The cleaning cycle depends on the flocculant unit content in the sampled wastewater, which depends specifically on the wastewater content.

[0057] Of course, in order to ensure the normal use of the injection part 3, we also installed a disassembly card plate 42 and a disassembly rod 41. The disassembly rod 41 is constructed of elastic expansion material. The disassembly connecting block 12 is fixed by connecting the disassembly rod 41 and the disassembly card plate 42. The top of the disassembly connecting block 12 is installed with a disassembly rod 41, and the top of the disassembly rod 41 is installed with a disassembly card plate 42. The top of the disassembly connecting block 12 is provided with an engaging disassembly groove matching the disassembly rod 41. The cross-sectional size of the engaging disassembly groove is smaller than the cross-sectional size of the disassembly rod 41, and the two are matched and connected. By installing the disassembly card plate 42, the disassembly card plate 42 is framed on the surface of the aeration tank body 1 to form a connection between the disassembly card plate 42 and the aeration tank body 1, so as to ensure that the starting motor 23 can drive the rotating shaft 11 to rotate normally during the rotation process.

[0058] like Figure 1-10 As shown, a starting motor 23 is installed inside the disassembly connection block 12, a first rotating lubricating ring 24 is installed at the bottom of the disassembly connection block 12, and a first interlocking wheel 25 is movably engaged inside the first rotating lubricating ring 24. The starting motor 23 penetrates the first rotating lubricating ring 24 and is connected to the top of the rotating central shaft 11. The rotating central shaft 11 is rotatably connected to the disassembly connection block 12 through the connection of the first interlocking wheel 25 and the first rotating lubricating ring 24. The first interlocking wheel 25 is movably connected to the top of the rotating central shaft 11. A groove matching the interlocking of the first rotating lubricating ring 24 is provided inside the first rotating lubricating ring 24. The second feed pipe 20 is penetrated and connected inside the rotating central shaft 11, and the discharge pipe port 18 is connected to the surface of the second feed pipe 20. The bottom of the second feed pipe 20 is penetrated and connected to a pipe middle bearing 21, which is installed at the axis of the rotating shaft seat 16. The bottom of the pipe middle bearing 21 is connected to the first feed pipe 19, and the bottom of the first feed pipe 19 is penetrated and connected to the injection pipe network 9.

[0059] In this embodiment, this embodiment is expanded as an expansion of the above embodiment. It should be explained that the first interlocking wheel 25 is dovetail-shaped and matched to the inside of the first rotating lubricating ring 24, and the first rotating lubricating ring 24 and the first interlocking wheel 25 only have the function of horizontal movement. Through the setting of the starting motor 23, when the starting motor 23 rotates, it penetrates the first rotating lubricating ring 24 and directly inserts into the top of the rotating central shaft 11, driving the rotating central shaft 11 to rotate. During the rotation of the rotating central shaft 11, it can effectively pass through the first interlocking wheel 25 and the first rotating lubricating ring. The setting of the ring 24 allows the disassembly connection block 12 on the top to be rotated separately, and through the bottom pipe middle bearing 21 and the layered design of the rotating shaft seat 16, the bottom rotating shaft seat 16 can also be separated and rotated, thereby ensuring that the injection part 3 will not affect the normal use of the injection part 3 itself during the rotation process, and the second feed pipe 20 can still normally transport the agent to ensure that the chemical reaction of the wastewater inside the aeration tank body 1 can be carried out normally. At the same time, during the process of transporting the agent for spraying, it can also ensure that the rotating central axis 11 can be effectively rotated to accelerate the fusion efficiency of the wastewater and the agent.

[0060] like Figure 1-10 As shown, the rotating shaft seat 16 is designed and installed in a layered manner, the upper layer of the rotating shaft seat 16 is provided with an interlocking wheel sleeve 26, the lower layer of the rotating shaft seat 16 is provided with a first interlocking wheel 25, the interior of the first interlocking wheel 25 is penetrated and connected with an electric control top support rod 27, the electric control top support rod 27 is installed in a T-shaped structure, a roller is installed on one side of the electric control top support rod 27 close to the interlocking wheel sleeve 26, and the roller on the top of the electric control top support rod 27 matches the size of the interlocking wheel sleeve 26;

[0061] In the present embodiment, it should be noted that the electrically controlled top support rod 27 is electrically controlled. In order to ensure the stability of the use of the electrically controlled top support rod 27 itself, the electrically controlled top support rod 27 and the starting motor 23 are electrically controlled as a whole. That is to say, when the starting motor 23 is started, the electrically controlled top support rod 27 directly performs a supporting activity to push and separate the rotating shaft seat 16, thereby supporting the inside of the wheel sleeve 26 through the top of the electrically controlled top support rod 27, and at this time driving the pipeline center support member 21 to be lifted at the same time, thereby effectively ensuring that the rotation of the injection part 3 will not affect the medicine spraying behavior of the injection part 3 itself.

[0062] like Figure 1-10 As shown, the pipeline middle bearing member 21 includes a pipeline middle bearing base 28, an interlocking sealing block 29, a pipeline receiving wall 30, a second interlocking wheel 31, and a middle bearing hose 32;

[0063] The pipe middle bearing base 28 is symmetrically installed at the top and bottom of the rotating shaft seat 16. The pipe middle bearing base 28 is symmetrically installed with the middle bearing hose 32 as the axis. The chimeric sealing block 29 is installed between the pipe middle bearing base 28 and the rotating shaft seat 16 to fix the connection between the pipe middle bearing base 28 and the rotating shaft seat 16. The pipe receiving wall 30 is installed on one side of the chimeric sealing block 29. A bayonet is provided on the side of the pipe receiving wall 30 close to the middle bearing hose 32. The second chimeric wheel 31 is installed in the bayonet. The middle bearing hose 32 is installed between the two pipe receiving walls 30. The second chimeric wheel 31 is installed at both ends of the middle bearing hose 32. The middle bearing hose 32 is made of elastic soft material. Both sides of the middle bearing hose 32 close to the pipe receiving wall 30 are fixedly connected to the pipe receiving wall 30 to maintain the sealing effect of the pipe middle bearing member 21.

[0064] In this embodiment, by such an arrangement, the pipeline middle bearing member 21 can be used as a three-section independent device, and the pipeline receiving wall 30 and the pipeline middle bearing base 28 are connected as the two ends of the middle bearing hose 32. The middle bearing hose 32 itself is independently constructed of independent materials, and the two ends are movably connected through the second interlocking wheel 31 and the pipeline receiving wall 30, the interlocking sealing block 29, and the pipeline middle bearing base 28. That is to say, in the process of the two ends of the pipeline middle bearing member 21 rotating through the rotating shaft seat 16, it will still not affect the circulation effect of the middle bearing hose 32 itself, thereby effectively ensuring the interconnection effect of the pipeline middle bearing member 21.

[0065] like Figure 1-10 As shown, the inner walls of the aeration tank body 1 and the connected storage tank 2 are both provided with abutment sealing grooves 8, and a top support spring column 33 is installed inside the abutment sealing grooves 8. A first pressing wheel 35 is installed on the side of the top support spring column 33 close to the secondary filter screen 5. The first pressing wheel 35 is made of soft material, and the maximum extrusion diameter range of the first pressing wheel 35 is limited to one third of the transverse diameter of the first pressing wheel 35.

[0066] In this embodiment, by such an arrangement, it is ensured that the secondary filter screen 5 will not affect the sealing between the aeration tank body 1 and the interconnecting storage tank 2 during the installation process, and the installation position of the secondary filter screen 5 is located at the top of the interconnecting storage tank 2 and the bottom of the aeration tank body 1. In order to ensure the effect of the secondary filter screen 5 during use, the slurry stored in the interconnecting storage tank 2 needs to be filled, so that the secondary filter screen 5 is placed on the surface layer of the interconnecting storage tank 2, so that the flocculated impurities in the wastewater inside the interconnecting storage tank 2 can be effectively collected again, thereby effectively ensuring the flocculation collection effect of the device.

[0067] As Figure 1-10As shown, a pulling and gathering net rope 37 is installed inside the secondary filter screen 5, and thickened sealing net walls 36 are installed on both sides of the secondary filter screen 5. The two ends of the pulling and gathering net rope 37 are distributed on both sides of the axis of the secondary filter screen 5 with the axis of the secondary filter screen 5 as the boundary. The secondary filter screen 5 and the pulling and gathering net rope 37 are both made of soft materials. A pulling soft seat 38 is fixed on the surface of the pulling and gathering net rope 37. An elastic rod 39 is installed between the two pulling soft seats 38. The elastic rod 39 is sleeved on the surface of the pulling and gathering net rope 37. The elastic rod 39 is also made of elastic material. The surface of the elastic rod 39 is installed with flocculent collecting sticky whiskers 40, and the surface of the flocculent collecting sticky whiskers 40 is provided with barb-shaped needle thorns.

[0068] In this embodiment, by such a configuration, the secondary filter 5 can be effectively pulled and gathered by the setting of the net rope 37 during use. During the pulling process of the secondary filter 5, the secondary filter 5 drives the first rotating shaft plate 4 to rotate to pull the secondary filter 5 rolled up thereon. There are two pulling methods for the secondary filter 5, one is the reciprocating rotation of the first rotating shaft plate 4, and the other is the rotation towards the gathering. The former is based on the surface tension of the secondary filter 5. During the reciprocating pulling process of the secondary filter 5, the pulling and gathering net rope 37 set on the surface of the secondary filter 5 will follow the pulling of the secondary filter 5. The secondary filter screen 5 is shrunk, especially when both sides of the secondary filter screen 5 are fixed by the thickened sealing mesh wall 36, the pulling and converging net rope 37 will extend its own length according to its own elasticity. During this process, the elastic rod 39 and the flocculent collecting viscous whiskers 40 arranged thereon will also extend back and forth with the pulling and converging net rope 37, thereby forming a vortex in the placement area of ​​the secondary filter screen 5, so that the flocculent residues floating on the surface of the wastewater can be retained on the surface of the flocculent collecting viscous whiskers 40 and the elastic rod 39, and with the help of the tension of the secondary filter screen 5, the surface floccules can be recovered without affecting the static state of the bottom wastewater, thereby achieving the purpose of filtering the surface layer of the wastewater again.

[0069] like Figure 1-10 As shown, the surface of the positioning ring 13 is sleeved with an electric-controlled rotating shaft sleeve 43, the number of the electric-controlled rotating shaft sleeve 43 installed matches the number of the ultraviolet lamp board 14 installed, the electric-controlled rotating shaft sleeve 43 is used to control the connection angle of the ultraviolet lamp board 14, the surface of the ultraviolet lamp board 14 is provided with a light-scattering groove 45, and an ultraviolet lamp tube 46 is installed inside the ultraviolet lamp board 14;

[0070] In this embodiment, by such arrangement, during the rotation of the injection piece 3, the electrically controlled rotating shaft sleeve 43 is started, so that the electrically controlled rotating shaft sleeve 43 can rotate under the limit of the positioning ring 13, thereby driving the ultraviolet lamp board 14 to break away from the limit of the top positioning ring 13. According to the inclination angle of the ultraviolet lamp board 14 and the rotation effect of the electrically controlled rotating shaft sleeve 43, the ultraviolet lamp board 14 can achieve the following effects:

[0071] The electrically controlled rotating shaft sleeve 43 is rotated back and forth over a large distance, and the ultraviolet lamp plate 14 can beat the sediment at the bottom of the aeration tank body 1 in the wastewater, so that the bottom sediment of the wastewater will not accumulate at the bottom of the aeration tank body 1, which will make it difficult to mix the reagents;

[0072] By placing the ultraviolet lamp board 14 horizontally and keeping it at a vertical angle to the injection piece 3, the ultraviolet lamp tube 46 inside the ultraviolet lamp board 14 is started, so that the ultraviolet lamp tube 46 can effectively irradiate the wastewater inside the aeration tank body 1 with ultraviolet rays, thereby improving the exposure effect of the aeration tank body 1. Due to the opening of the diffuser groove 45, the ultraviolet irradiation effect is stronger than that of the ultraviolet lamp board 14 in a flat state;

[0073] Furthermore, when the injection piece 3 rotates, the ultraviolet lamp board 14 is turned on. During the rotation of the ultraviolet lamp board 14, due to the presence of the light diffusion groove 45, multiple eddy current collisions are formed around the ultraviolet lamp board 14, thereby quickly improving the mixing effect of the wastewater and the medicine inside the aeration tank body 1.

[0074] A method for discharging wastewater from a zero-discharge device for producing rare earth polishing powder, comprising the following steps:

[0075] 1. Injecting the reagent into the aeration tank body 1 through the injection piece 3 to perform a drug reduction reaction to remove pollutants in the wastewater;

[0076] Second: during the drug reduction reaction, the drug injection part 3 is rotated to accelerate the mixing reaction of the wastewater and the drug;

[0077] 3. Debugging the UV lamp panel 14 and using the UV lamp panel 14 to enhance the effect of the drug reaction;

[0078] Fourth, start the first rotating shaft 6 to collect floccules on the surface of the wastewater through the secondary filter 5;

[0079] Five: Detect the treated wastewater discharged from the water outlet 10 to observe whether the wastewater meets the zero discharge standard;

[0080] Six: During the wastewater treatment process, the equipment is regularly cleaned and maintained by disassembling the connecting block 12 and rotating the central shaft 11;

[0081] Seven: Sample testing: Each time the wastewater composition is injected into the aeration tank body 1, the reagent in the injection pipe network 9 is replaced based on the characteristics of the wastewater composition.

[0082] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0083] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A rare earth polishing powder production wastewater zero discharge equipment, characterized in that: include: An aeration tank body (1), wherein a water outlet valve (10) is provided inside the aeration tank body (1), and a drug injection component (3) is installed inside the aeration tank body (1) for completing flocculation and precipitation of wastewater inside the aeration tank body (1) during the exposure process, and performing an oxidation-reduction reaction, and a material injection pipe network (9) is laid inside the aeration tank body (1); A connecting storage pool (2), the connecting storage pool (2) being installed below the aeration pool body (1), and a sealing groove (8) is provided at the connection between the connecting storage pool (2) and the aeration pool body (1); A secondary filter (5), the secondary filter (5) being installed between the aeration tank body (1) and the interconnecting storage tank (2), a first rotating shaft (6) being gathered and wound around both sides of the secondary filter (5), a first rotating shaft plate (4) being installed at both ends of the first rotating shaft plate (6), the first rotating shaft plate (4) being installed on the surface of the aeration tank body (1) and the interconnecting storage tank (2), a second rotating shaft (7) being installed at both ends of the aeration tank body (1) close to the first rotating shaft (6), the second rotating shaft (7) and the secondary filter (5) being movably abutted and overlapped; The drug injection component (3) comprises a disassembly connection block (12), a rotating central axis (11), a positioning ring (13), an ultraviolet lamp panel (14), a pipe network connection opening (15), a rotating shaft seat (16), a positioning base (17), and a discharge pipe opening (18); The positioning base (17) is installed on the top of the injection pipe network (9), the pipe network connection opening (15) is opened at the bottom of the positioning base (17), the rotating shaft seat (16) is installed on the top of the positioning base (17), the rotating central axis (11) is rotatably connected to the top of the rotating shaft seat (16), the ultraviolet lamp board (14) is movably overlapped on the surface of the rotating central axis (11), the discharge pipe opening (18) is opened between the two ultraviolet lamp boards (14) and passes through the inside of the rotating central axis (11), the positioning ring (13) is installed at both ends of the ultraviolet lamp board (14) and movably connected to the surface of the rotating central axis (11), and the disassembly connection block (12) is installed on the top of the rotating central axis (11); A starter motor (23) is installed inside the disassembly connection block (12); a first rotating lubricating ring (24) is installed at the bottom of the disassembly connection block (12); a first interlocking wheel (25) is movably engaged inside the first rotating lubricating ring (24); the starter motor (23) passes through the first rotating lubricating ring (24) and is connected to the top of the rotating central shaft (11); the rotating central shaft (11) is rotatably connected to the disassembly connection block (12) through the connection between the first interlocking wheel (25) and the first rotating lubricating ring (24); the first interlocking wheel (25) is movably connected to the top of the rotating central shaft (11); The first rotating lubricating ring (24) has a groove inside thereof for matching the first rotating lubricating ring (24), the second feed pipe (20) is connected to the inside of the rotating central shaft (11), the discharge pipe opening (18) is connected to the surface of the second feed pipe (20), the bottom of the second feed pipe (20) is connected to a pipe center support (21), the pipe center support (21) is installed at the axis of the rotating shaft seat (16), the bottom of the pipe center support (21) is connected to the first feed pipe (19), and the bottom of the first feed pipe (19) is connected to the injection pipe network (9).

2. A rare earth polishing powder production wastewater zero discharge equipment according to claim 1, characterized in that: The rotating shaft seat (16) is installed in a layered design, the upper layer of the rotating shaft seat (16) is provided with an interlocking wheel sleeve (26), the lower layer of the rotating shaft seat (16) is provided with a first interlocking wheel (25), the interior of the first interlocking wheel (25) is penetrated by an electrically controlled top support rod (27), the electrically controlled top support rod (27) is installed in a T-shaped structure, a roller is installed on one side of the electrically controlled top support rod (27) close to the interlocking wheel sleeve (26), and the bearing dimensions of the roller at the top of the electrically controlled top support rod (27) and the interlocking wheel sleeve (26) match.

3. A rare earth polishing powder production wastewater zero discharge equipment according to claim 1, characterized in that: The pipeline center support member (21) comprises a pipeline center support base (28), a chimeric sealing block (29), a pipeline receiving wall (30), a second chimeric wheel (31), and a center support hose (32); The pipeline center support base (28) is symmetrically mounted on the top and bottom of the rotating shaft seat (16); the pipeline center support base (28) is symmetrically mounted with the center support hose (32) as the axis; the chimeric sealing block (29) is mounted between the pipeline center support base (28) and the rotating shaft seat (16) and is used to fix the connection between the pipeline center support base (28) and the rotating shaft seat (16); the pipeline receiving wall (30) is mounted on one side of the chimeric sealing block (29); the pipeline receiving wall (30) is close to the center support hose (32); A bayonet is provided on one side of the middle support hose (32), the second engaging wheel (31) is installed in the bayonet, the middle support hose (32) is installed between two pipe receiving walls (30), the second engaging wheel (31) is installed at both ends of the middle support hose (32), the middle support hose (32) is made of elastic soft material, and both sides of the middle support hose (32) close to the pipe receiving wall (30) are fixedly connected to the pipe receiving wall (30) to maintain the sealing effect of the pipe middle support member (21).

4. A rare earth polishing powder production wastewater zero discharge equipment according to claim 1, characterized in that: The inner walls of the aeration tank body (1) and the connected storage tank (2) are both provided with abutment sealing grooves (8), a top support spring column (33) is installed inside the abutment sealing groove (8), a first pressing wheel (35) is installed on a side of the top support spring column (33) close to the secondary filter screen (5), the first pressing wheel (35) is made of soft material, and the maximum extrusion diameter range of the first pressing wheel (35) is limited to one third of the transverse diameter of the first pressing wheel (35).

5. A rare earth polishing powder production wastewater zero discharge equipment according to claim 4, characterized in that: A pulling and gathering net rope (37) is installed inside the secondary filter (5), and thickened sealing net walls (36) are installed on both sides of the secondary filter (5). The two ends of the pulling and gathering net rope (37) are distributed on both sides of the axis of the secondary filter (5) with the axis of the secondary filter (5) as the boundary. The secondary filter (5) and the pulling and gathering net rope (37) are both made of soft materials. A pulling soft seat (38) is fixedly sleeved on the surface of the pulling and gathering net rope (37). An elastic rod (39) is installed between the two pulling soft seats (38). The elastic rod (39) is sleeved on the surface of the pulling and gathering net rope (37). The elastic rod (39) is also made of elastic material. The surface of the elastic rod (39) is installed with flocculent collecting sticky whiskers (40), and the surface of the flocculent collecting sticky whiskers (40) is provided with barbed needles.

6. The rare earth polishing powder production wastewater zero discharge equipment according to claim 1, characterized in that: An electrically controlled rotating shaft sleeve (43) is sleeved on the surface of the positioning ring (13); the number of electrically controlled rotating shaft sleeves (43) installed matches the number of ultraviolet light panels (14) installed; the electrically controlled rotating shaft sleeve (43) is used to control the connection angle of the ultraviolet light panel (14); a light diffusion groove (45) is provided on the surface of the ultraviolet light panel (14); and an ultraviolet light tube (46) is installed inside the ultraviolet light panel (14).

7. A method for discharging wastewater from a zero-discharge device for producing rare earth polishing powder according to any one of claims 1 to 6, characterized in that: The following steps are involved: One: injecting the reagent into the aeration tank body (1) through the injection piece (3) to perform a reagent reduction reaction to remove pollutants in the wastewater; Second: during the drug reduction reaction, the drug injection part (3) is rotated to accelerate the mixing reaction of the wastewater and the drug; 3. Debugging the ultraviolet lamp panel (14) and using the ultraviolet lamp panel (14) to enhance the reaction effect of the agent; Fourth, starting the first rotating shaft (6) to collect floccules on the surface of the wastewater through the secondary filter (5); 5. Detect the wastewater discharged from the outlet valve (10) after treatment to see whether the wastewater meets the zero discharge standard; Six: During the wastewater treatment process, the equipment is regularly cleaned and maintained by disassembling the connecting block (12) and rotating the central shaft (11); Seven: Sample testing is performed each time the wastewater composition injected into the aeration tank body (1) is tested, and based on the characteristics of the wastewater composition, the reagents in the injection pipe network (9) are replaced.

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