CN112473237A - Tombarthite tail water is administered and is used denitrogenation dephosphorization processing apparatus - Google Patents
Tombarthite tail water is administered and is used denitrogenation dephosphorization processing apparatus Download PDFInfo
- Publication number
- CN112473237A CN112473237A CN202011361586.6A CN202011361586A CN112473237A CN 112473237 A CN112473237 A CN 112473237A CN 202011361586 A CN202011361586 A CN 202011361586A CN 112473237 A CN112473237 A CN 112473237A
- Authority
- CN
- China
- Prior art keywords
- dephosphorization
- denitrification
- thick bamboo
- barrel
- rare earth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 112
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 56
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 56
- 238000004140 cleaning Methods 0.000 claims abstract description 32
- 239000010865 sewage Substances 0.000 claims abstract description 29
- 238000012856 packing Methods 0.000 claims abstract description 15
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 44
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 44
- 241001330002 Bambuseae Species 0.000 claims description 44
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 44
- 239000011425 bamboo Substances 0.000 claims description 44
- 238000007789 sealing Methods 0.000 claims description 39
- 230000033001 locomotion Effects 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 229910052698 phosphorus Inorganic materials 0.000 claims description 7
- 239000011574 phosphorus Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 14
- 238000001914 filtration Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000945 filler Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 239000008213 purified water Substances 0.000 description 5
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 241000883990 Flabellum Species 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000036828 Device occlusion Diseases 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910052683 pyrite Inorganic materials 0.000 description 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 1
- 239000011028 pyrite Substances 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 229910021646 siderite Inorganic materials 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
- B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a denitrification and dephosphorization treatment device for rare earth tail water treatment, which comprises a coarse denitrification and dephosphorization barrel and a fine denitrification and dephosphorization barrel, wherein the lower end of the coarse denitrification and dephosphorization barrel is connected with a water inlet pipe and a first sewage outlet pipe, a first filter plate is arranged inside the coarse denitrification and dephosphorization barrel, the upper surface of the first filter plate is provided with a first packing layer, the side wall of the coarse denitrification and dephosphorization barrel above the first packing layer is fixedly connected with a flow guide pipe, and one end of the flow guide pipe is fixedly connected with the side wall of the fine denitrification and dephosphorization barrel. According to the denitrification and dephosphorization treatment device for treating the rare earth tail water, disclosed by the invention, secondary denitrification and dephosphorization are carried out on the rare earth tail water through the coarse denitrification and dephosphorization barrel and the fine denitrification and dephosphorization barrel, the denitrification and dephosphorization effect is good, the first cleaning plate and the second cleaning plate are arranged in the coarse denitrification and dephosphorization barrel and the fine denitrification and dephosphorization barrel, the arc-shaped scraper blade is driven to rotate in the denitrification and dephosphorization process, the filtering speed of the rare earth tail water can be increased, and the working efficiency is improved.
Description
Technical Field
The invention relates to the technical field of rare earth sewage, in particular to a denitrification and dephosphorization treatment device for treating rare earth tail water.
Background
Rare earth is a general name of seventeen metal elements including lanthanide elements, scandium and yttrium in a chemical periodic table. There are 250 kinds of rare-earth ores in nature. The earliest rare earth discovered was the finnish chemist gardoline. In 1794, he separated the first rare earth "element" (ytrrite, Y) from a block of heavy ore shaped like bitumen2O3). Since rare earth minerals discovered in the 18 th century were few, only small amounts of water-insoluble oxides could be produced by chemical methods, and historically, such oxides were traditionally referred to as "earths" and hence the name rare earth.
The rare earth mine tail water is a type of waste water generated in the process of in-situ leaching mining of rare earth due to the fact that leaching liquid leaks into underground water and then is collected into surface water of a small watershed of a mining area, and is characterized in that: (1) the ammonia nitrogen and nitrate nitrogen content is high, the ammonia nitrogen concentration in the water-rich period is 80 mg/L-200 mg/L, the nitrate nitrogen concentration is 30 mg/L-40 mg/L, the ammonia nitrogen concentration in the water-poor period is 120 mg/L-290 mg/L, the nitrate nitrogen concentration is 40 mg/L-60 mg/L, and is 5-10 times of the ammonia nitrogen and nitrate nitrogen content in the domestic sewage; (2) the organic carbon content is very low; (3) the water amount is large. The treatment of the rare earth tail water needs key denitrification and dephosphorization.
Chinese patent CN208700667U discloses a synchronous nitrogen and phosphorus removal sewage treatment device, on one hand, by using pyrite or siderite as a packing layer, nitrogen and phosphorus in sewage can be effectively degraded, and the problem of device blockage caused by using sulfur and gypsum is avoided; on the other hand, the volume of the crude denitrification and dephosphorization packing layer is set to be 65% of the volume of the crude denitrification and dephosphorization area, and the height ratio of the supporting layer to the packing layer is set to be 1: 4, not only greatly reduces the cost of the equipment, but also can efficiently remove nitrogen and phosphorus in the sewage.
Although this application has solved the problem in the background art to a certain extent, this application is when carrying out the dephosphorization of secondary fine denitrogenation, and the tail water passes through gravity autofilter, and the filter ageing is slow, and probably contains a large amount of silt in the tombarthite tail water, needs further filtration for the speed of denitrogenation dephosphorization.
Disclosure of Invention
The invention aims to provide a denitrification and dephosphorization treatment device for treating rare earth tail water, which is used for carrying out secondary denitrification and dephosphorization on rare earth tail water through a coarse denitrification and dephosphorization barrel and a fine denitrification and dephosphorization barrel, has good denitrification and dephosphorization effect, is internally provided with a first cleaning plate and a second cleaning plate, drives an arc-shaped scraper to rotate in the denitrification and dephosphorization process, can stir the rare earth tail water, and simultaneously can avoid the blockage of the first filter plate and the second filter plate, and realizes the circulation and pressurization of the rare earth tail water through a pushing movable plate and a pushing sealing plate which move up and down in the fine denitrification and dephosphorization barrel, thereby improving the filtering speed of the rare earth tail water and the working efficiency and solving the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a denitrification dephosphorization treatment device for rare earth tail water treatment comprises a coarse denitrification dephosphorization barrel and a fine denitrification dephosphorization barrel, wherein the lower end of the coarse denitrification dephosphorization barrel is connected with a water inlet pipe and a first sewage outlet pipe, a first filter plate is arranged inside the coarse denitrification dephosphorization barrel, the upper surface of the first filter plate is provided with a first packing layer, the side wall of the coarse denitrification dephosphorization barrel above the first packing layer is fixedly connected with a flow guide pipe, one end of the flow guide pipe is fixedly connected with the side wall of the fine denitrification dephosphorization barrel, the lower end of the coarse denitrification dephosphorization barrel is connected with a first cleaning plate through a bearing, the lower end of the fine denitrification dephosphorization barrel is provided with a water purification outlet pipe, the position of the fine denitrification dephosphorization barrel close to the water purification outlet pipe is connected with a second packing layer, a second filter plate is arranged in the fine denitrification dephosphorization barrel above the second packing layer, and the side wall of the fine denitrification dephosphorization barrel above the second filter plate is connected with, the upper end fixedly connected with driving motor of a fine denitrification dephosphorization barrel, the output of driving motor runs through a fine denitrification dephosphorization barrel and is connected with a rotary pushing device.
Preferably, the upper end faces of the coarse denitrification dephosphorization barrel and the fine denitrification dephosphorization barrel are both connected with exhaust ports, and one ends of the first sewage outlet pipe and the second sewage outlet pipe are both connected with sealing covers.
Preferably, the first cleaning plate is connected with arc-shaped scrapers at equal intervals around the circumference, the lower surface of the first cleaning plate is fixedly connected with a supporting shaft, a first worm wheel is sleeved on the supporting shaft, the first worm wheel is meshed with a first worm, and the center of the first worm is connected with a central shaft in a penetrating manner.
Preferably, the both ends of center pin are passed through the bearing and are connected with the inner wall of thick nitrogen and phosphorus removal section of thick bamboo, and the one end of center pin is connected with the rotating electrical machines, and the rotating electrical machines is installed on the outer wall of thick nitrogen and phosphorus removal section of thick bamboo.
Preferably, the one end of center pin is connected with the support frame, the inner wall connection of support frame and inlet tube, and the other end of center pin passes through the bearing and is connected with the inner wall of thick denitrogenation dephosphorization section of thick bamboo, and the one end that the center pin is close to the support frame is connected with rotatory flabellum through the bearing, and rotatory flabellum is arranged in the inlet tube.
Preferably, the rotary pushing device comprises a rotary main shaft, a transmission worm wheel, a pushing movable plate and a pushing sealing plate, the upper end of the rotary main shaft is connected with a coaxial worm, the coaxial worm is meshed with the transmission worm wheel, the rotary main shaft penetrates through the pushing movable plate and the pushing sealing plate, the lower end of the rotary main shaft is connected with a second cleaning plate, and arc-shaped scraping plates are connected to the second cleaning plate in an equidistant mode in a circle.
Preferably, the transmission worm wheel is connected with the top inside the fine denitrification dephosphorization barrel through a support, the center of the transmission worm wheel is movably and fixedly connected with a short rod, one end of the short rod is hinged with a long pull rod, the lower end of the long pull rod is hinged with a sleeve joint bearing, and the sleeve joint bearing is movably connected with the pushing movable plate.
Preferably, the first hole that leaks has been seted up to equidistant on the propelling movement fly leaf, fixedly connected with cup joints a section of thick bamboo on the central point of propelling movement fly leaf upper surface puts, cup joints a section of thick bamboo upper end and cup joints the bearing and is connected, cup joints a section of thick bamboo and propelling movement closing plate swing joint, and the symmetrical connection has protruding stopper on the inner wall of a section of thick bamboo that cup joints.
Preferably, equidistant second hole that leaks of having seted up on the propelling movement closing plate, one side in second hole that leaks is connected with the limiting plate, fixedly connected with inner skleeve on the central point of the upper surface of propelling movement closing plate puts, and the arc spout, arc spout and protruding stopper swing joint have been seted up to the symmetry on the outer wall of inner skleeve.
Preferably, the upper end of the limiting plate is fixedly connected with a limiting strip, and the upper end of the limiting plate penetrates through the first water leakage hole.
Compared with the prior art, the invention has the beneficial effects that: according to the denitrification and dephosphorization treatment device for treating the rare earth tail water, secondary denitrification and dephosphorization are carried out on the rare earth tail water through the coarse denitrification and dephosphorization cylinder and the fine denitrification and dephosphorization cylinder, the denitrification and dephosphorization effect is good, the first cleaning plate and the second cleaning plate are arranged in the coarse denitrification and dephosphorization cylinder and the fine denitrification and dephosphorization cylinder, the arc-shaped scraper is driven to rotate in the denitrification and dephosphorization process, the rare earth tail water can be stirred, meanwhile, the first filter plate and the second filter plate can be prevented from being blocked, in the fine denitrification and dephosphorization cylinder, the circulation and pressurization of the rare earth tail water are realized through the pushing movable plate and the pushing sealing plate which move up and down, the filtering speed of the rare earth tail water can be improved, and the working efficiency is improved.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a view of a first cleaning plate of the present invention;
FIG. 4 is a structural view of a rotary pushing device of the present invention;
FIG. 5 is a view showing the installation structure of the pushing movable plate and the pushing sealing plate according to the present invention;
FIG. 6 is a diagram showing the working states of the movable pushing plate and the sealing plate of the present invention;
FIG. 7 is a structural view of a pushing movable plate of the present invention;
FIG. 8 is a view showing a structure of a push sealing plate of the present invention;
FIG. 9 is a block diagram of a second embodiment of the present invention;
FIG. 10 is a schematic view of a cleaning plate according to a second embodiment of the present invention.
In the figure: 1. a coarse denitrification dephosphorization cylinder; 11. a water inlet pipe; 12. a first sewage outlet pipe; 13. a first filter plate; 14. a first filler layer; 15. a flow guide pipe; 16. an exhaust port; 2. a fine denitrification dephosphorization cylinder; 21. a purified water outlet pipe; 22. a second packing layer; 23. a second filter plate; 24. a second sewage outlet pipe; 25. a drive motor; 3. a first cleaning plate; 31. an arc-shaped scraper plate; 32. a support shaft; 321. a first worm gear; 33. a first worm; 331. a central shaft; 332. a support frame; 333. rotating the fan blades; 34. a rotating electric machine; 4. rotating the pushing device; 41. rotating the main shaft; 411. a coaxial worm; 412. a second cleaning plate; 42. a drive worm gear; 421. a short bar; 422. a long pull rod; 423. sleeving a bearing; 43. pushing the movable plate; 431. a first water leakage hole; 432. sleeving a sleeve; 433. a protruding limit block; 44. pushing the sealing plate; 441. a second water leakage hole; 442. a limiting plate; 4421. a limiting strip; 443. an inner sleeve; 4431. an arc chute.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1-2, a denitrification and dephosphorization apparatus for treating rare earth tail water comprises a coarse denitrification and dephosphorization barrel 1 and a fine denitrification and dephosphorization barrel 2, wherein the lower end of the coarse denitrification and dephosphorization barrel 1 is connected with a water inlet pipe 11 and a first sewage outlet pipe 12, the coarse denitrification and dephosphorization barrel 1 is internally provided with a first filter plate 13, the upper surface of the first filter plate 13 is provided with a first filler layer 14, the side wall of the coarse denitrification and dephosphorization barrel 1 above the first filler layer 14 is fixedly connected with a flow guide pipe 15, one end of the flow guide pipe 15 is fixedly connected with the side wall of the fine denitrification and dephosphorization barrel 2, the lower end of the coarse denitrification and dephosphorization barrel 1 is connected with a first cleaning plate 3 through a bearing, the lower end of the fine denitrification and dephosphorization barrel 2 is provided with a purified water outlet pipe 21, the fine denitrification and dephosphorization barrel 2 is connected with a second filler layer 22 at a position close to the purified water outlet pipe 21, the fine denitrification and dephosphorization barrel 2 above the, be connected with second sewage outlet pipe 24 on the 2 lateral walls of the fine denitrification dephosphorization section of thick bamboo of second filter 23 top, the upper end fixedly connected with driving motor 25 of fine denitrification dephosphorization section of thick bamboo 2, driving motor 25's output runs through fine denitrification dephosphorization section of thick bamboo 2, and be connected with rotatory pusher 4, the up end of coarse denitrification dephosphorization section of thick bamboo 1 and fine denitrification dephosphorization section of thick bamboo 2 all is connected with gas vent 16, gas vent 16 is used for discharging the gas that the denitrification dephosphorization in-process produced, guarantee that coarse denitrification dephosphorization section of thick bamboo 1 and fine denitrification dephosphorization section of thick bamboo 2 inside and outside pressure balance, the one end of first sewage outlet pipe 12 and second sewage outlet pipe 24 all is connected with sealed lid, first sewage outlet pipe 12 and second sewage outlet pipe 24 are used for discharging the sewage that filters not through.
Referring to fig. 3, arc-shaped scrapers 31 are connected to the first cleaning plate 3 at equal intervals around the circumference, a support shaft 32 is fixedly connected to the lower surface of the first cleaning plate 3, a first worm wheel 321 is sleeved on the support shaft 32, the first worm wheel 321 is meshed with a first worm 33, a center shaft 331 is connected to the center of the first worm 33 in a penetrating manner, two ends of the center shaft 331 are connected to the inner wall of the coarse denitrification and dephosphorization barrel 1 through bearings, one end of the center shaft 331 is connected with a rotating motor 34, the rotating motor 34 is installed on the outer wall of the coarse denitrification and dephosphorization barrel 1, the center shaft 331 is driven to rotate through the rotating motor 34, the first worm 33 drives the first worm wheel 321 to rotate synchronously, rotation of the first cleaning plate 3 is achieved, the arc-shaped scrapers 31 are driven to clean the first filter plate 13.
Referring to fig. 4-8, the rotary pushing device 4 includes a rotary spindle 41, a transmission worm wheel 42, a pushing movable plate 43 and a pushing sealing plate 44, the upper end of the rotary spindle 41 is connected with a coaxial worm 411, the coaxial worm 411 is engaged with the transmission worm wheel 42, the rotary spindle 41 penetrates through the pushing movable plate 43 and the pushing sealing plate 44, the lower end of the rotary spindle 41 is connected with a second cleaning plate 412, a circle of the second cleaning plate 412 is connected with arc-shaped scrapers 31 at equal intervals, the driving motor 25 drives the rotary spindle 41 to rotate, and the rotary spindle 41 drives the arc-shaped scrapers 31 to clean the surface of the second filter plate 23, so as to prevent the second filter plate 23 from being blocked. The transmission worm wheel 42 is connected with the top of the inner part of the fine denitrification dephosphorization barrel 2 through a bracket, the center of the transmission worm wheel 42 is movably and fixedly connected with a short rod 421, one end of the short rod 421 is hinged with a long pull rod 422, the lower end of the long pull rod 422 is hinged with a sleeve bearing 423, the coaxial worm 411 rotates to drive the transmission worm wheel 42 to rotate, the short rod 421 pulls the long pull rod 422 to do circular motion, the long pull rod 422 drives the pushing movable plate 43 to move up and down, the sleeve bearing 423 is movably connected with the pushing movable plate 43, the pushing movable plate 43 is provided with a first water leakage hole 431 at equal distance, the center of the upper surface of the pushing movable plate 43 is fixedly connected with a sleeve cylinder 432, the upper end of the sleeve cylinder 432 is connected with the sleeve bearing 423, the sleeve cylinder 432 is movably connected with the pushing sealing plate 44, the inner wall of the sleeve cylinder 432 is symmetrically connected with a convex limiting block 433, the pushing, a limiting plate 442 is connected to one side of the second water leakage hole 441, an inner sleeve 443 is fixedly connected to a central position of an upper surface of the pushing sealing plate 44, arc-shaped sliding grooves 4431 are symmetrically formed in an outer wall of the inner sleeve 443, the arc-shaped sliding grooves 4431 are movably connected with the protruding limiting blocks 433, a limiting strip 4421 is fixedly connected to an upper end of the limiting plate 442, the upper end of the limiting plate 442 penetrates through the first water leakage hole 431, when the short rod 421 pulls the long pull rod 422 to move upwards, the pushing movable plate 43 and the pushing sealing plate 44 are separated by a distance, the limiting strip 4421 is buckled with one side of the first water leakage hole 431, rare earth tail water above the pushing movable plate 43 can enter the lower portion of the pushing sealing plate 44 from the first water leakage hole 431 and the second water leakage hole 441, when the short rod 421 pulls the long pull rod 422 to move downwards, the pushing movable plate 43 and the sealing plate 44 are close to the first water leakage hole 431 and the second, the pushing movable plate 43 and the pushing sealing plate 44 move downwards synchronously to extrude the rare earth tail water below the pushing sealing plate 44, so that the process of denitrification and dephosphorization of the rare earth tail water is accelerated.
The working process is as follows: rare earth tail water enters the rough denitrification dephosphorization barrel 1 from the water inlet pipe 11, the rare earth tail water passes through the first filter plate 13 and the first packing layer 14 along with the rising of the water level, the rare earth tail water passes through the rough denitrification dephosphorization and enters the fine denitrification dephosphorization barrel 2, the central shaft 331 is driven to rotate by the rotating motor 34, the first worm 33 drives the first worm gear 321 to synchronously rotate, the first cleaning plate 3 is driven to rotate, the arc-shaped scraper 31 is driven to clean the first filter plate 13, the first filter plate 13 is prevented from being blocked, the driving motor 25 drives the rotating main shaft 41 to rotate, the rotating main shaft 41 drives the arc-shaped scraper 31 to clean the surface of the second filter plate 23, the second filter plate 23 is prevented from being blocked, the coaxial worm 411 rotates, the driving worm gear 42 is driven to rotate, the short rod 421 pulls the long pull rod 422 to do circular motion, the long pull rod 422 drives the pushing movable plate 43 to move up and down, when the short rod 421 pulls the long, the distance is pulled open by the pushing movable plate 43 and the pushing sealing plate 44, one side of the limiting strip 4421 and the first water leakage hole 431 is buckled, the rare earth tail water above the pushing movable plate 43 can enter the lower part of the pushing sealing plate 44 from the first water leakage hole 431 and the second water leakage hole 441, when the short rod 421 pulls the long pull rod 422 to move downwards, the pushing movable plate 43 and the pushing sealing plate 44 are pressed close to each other, the first water leakage hole 431 and the second water leakage hole 441 are staggered, the pushing movable plate 43 and the pushing sealing plate 44 move downwards synchronously along with the continuous pushing of the long pull rod 422, the rare earth tail water below the pushing sealing plate 44 is extruded, and the denitrification and dephosphorization process of the rare earth tail water is accelerated.
Example two:
referring to fig. 9-10, a denitrification and dephosphorization apparatus for treating rare earth tail water comprises a coarse denitrification and dephosphorization barrel 1 and a fine denitrification and dephosphorization barrel 2, wherein the lower end of the coarse denitrification and dephosphorization barrel 1 is connected with a water inlet pipe 11 and a first sewage outlet pipe 12, the coarse denitrification and dephosphorization barrel 1 is internally provided with a first filter plate 13, the upper surface of the first filter plate 13 is provided with a first filler layer 14, the side wall of the coarse denitrification and dephosphorization barrel 1 above the first filler layer 14 is fixedly connected with a flow guide pipe 15, one end of the flow guide pipe 15 is fixedly connected with the side wall of the fine denitrification and dephosphorization barrel 2, the lower end of the coarse denitrification and dephosphorization barrel 1 is connected with a first cleaning plate 3 through a bearing, the lower end of the fine denitrification and dephosphorization barrel 2 is provided with a purified water outlet pipe 21, the fine denitrification and dephosphorization barrel 2 is connected with a second filler layer 22 at a position close to the purified water outlet pipe 21, the fine denitrification and dephosphorization barrel 2 above the, be connected with second sewage outlet pipe 24 on the 2 lateral walls of the fine denitrification dephosphorization section of thick bamboo of second filter 23 top, the upper end fixedly connected with driving motor 25 of fine denitrification dephosphorization section of thick bamboo 2, driving motor 25's output runs through fine denitrification dephosphorization section of thick bamboo 2, and be connected with rotatory pusher 4, the up end of coarse denitrification dephosphorization section of thick bamboo 1 and fine denitrification dephosphorization section of thick bamboo 2 all is connected with gas vent 16, gas vent 16 is used for discharging the gas that the denitrification dephosphorization in-process produced, guarantee that coarse denitrification dephosphorization section of thick bamboo 1 and fine denitrification dephosphorization section of thick bamboo 2 inside and outside pressure balance, the one end of first sewage outlet pipe 12 and second sewage outlet pipe 24 all is connected with sealed lid, first sewage outlet pipe 12 and second sewage outlet pipe 24 are used for discharging the sewage that filters not through.
The first cleaning plate 3 is connected with arc-shaped scrapers 31 at equal intervals around the circumference, the lower surface of the first cleaning plate 3 is fixedly connected with a support shaft 32, a first worm wheel 321 is sleeved on the support shaft 32, the first worm wheel 321 is meshed with a first worm 33, the center of the first worm 33 is connected with a center shaft 331 in a penetrating manner, one end of the center shaft 331 is connected with a support frame 332, the support frame 332 is connected with the inner wall of the water inlet pipe 11, the other end of the center shaft 331 is connected with the inner wall of the rough denitrification and dephosphorization barrel 1 through a bearing, one end of the center shaft 331, which is close to the support frame 332, is connected with rotating fan blades 333 through a bearing, the rotating fan blades 333 are arranged in the water inlet pipe 11, pressurized water is fed in the water inlet pipe 11 to impact the rotating fan blades 333 to rotate, so as to drive the first worm 33 to drive the first worm wheel, the first filter plate 13 is prevented from being blocked, the rotating fan blades 333 are rotated through impact of the rare earth tail water, the driving force is not used, the output of power is saved, and energy conservation and emission reduction are realized.
Rotatory pusher 4 is including rotatory main shaft 41, transmission worm wheel 42, propelling movement fly leaf 43 and propelling movement closing plate 44, the upper end of rotatory main shaft 41 is connected with coaxial worm 411, coaxial worm 411 meshes with transmission worm wheel 42, rotatory main shaft 41 runs through propelling movement fly leaf 43 and propelling movement closing plate 44, and the lower extreme of rotatory main shaft 41 is connected with second cleaning plate 412, the equidistant arc scraper 31 that is connected with of a week of second cleaning plate 412, driving motor 25 drives rotatory main shaft 41 rotatoryly, rotatory main shaft 41 drives arc scraper 31 and clears up second filter 23 surface, prevent that second filter 23 from blockking up.
The transmission worm wheel 42 is connected with the top of the inner part of the fine denitrification dephosphorization barrel 2 through a bracket, the center of the transmission worm wheel 42 is movably and fixedly connected with a short rod 421, one end of the short rod 421 is hinged with a long pull rod 422, the lower end of the long pull rod 422 is hinged with a sleeve bearing 423, the coaxial worm 411 rotates to drive the transmission worm wheel 42 to rotate, the short rod 421 pulls the long pull rod 422 to do circular motion, the long pull rod 422 drives the pushing movable plate 43 to move up and down, the sleeve bearing 423 is movably connected with the pushing movable plate 43, the pushing movable plate 43 is provided with a first water leakage hole 431 at equal distance, the center of the upper surface of the pushing movable plate 43 is fixedly connected with a sleeve cylinder 432, the upper end of the sleeve cylinder 432 is connected with the sleeve bearing 423, the sleeve cylinder 432 is movably connected with the pushing sealing plate 44, the inner wall of the sleeve cylinder 432 is symmetrically connected with a convex limiting block 433, the pushing, a limiting plate 442 is connected to one side of the second water leakage hole 441, an inner sleeve 443 is fixedly connected to a central position of an upper surface of the pushing sealing plate 44, arc-shaped sliding grooves 4431 are symmetrically formed in an outer wall of the inner sleeve 443, the arc-shaped sliding grooves 4431 are movably connected with the protruding limiting blocks 433, a limiting strip 4421 is fixedly connected to an upper end of the limiting plate 442, the upper end of the limiting plate 442 penetrates through the first water leakage hole 431, when the short rod 421 pulls the long pull rod 422 to move upwards, the pushing movable plate 43 and the pushing sealing plate 44 are separated by a distance, the limiting strip 4421 is buckled with one side of the first water leakage hole 431, rare earth tail water above the pushing movable plate 43 can enter the lower portion of the pushing sealing plate 44 from the first water leakage hole 431 and the second water leakage hole 441, when the short rod 421 pulls the long pull rod 422 to move downwards, the pushing movable plate 43 and the sealing plate 44 are close to the first water leakage hole 431 and the second, the pushing movable plate 43 and the pushing sealing plate 44 move downwards synchronously to extrude the rare earth tail water below the pushing sealing plate 44, so that the process of denitrification and dephosphorization of the rare earth tail water is accelerated.
The working process is as follows: rare earth tail water enters the rough denitrification dephosphorization barrel 1 from the water inlet pipe 11, the rare earth tail water passes through the first filter plate 13 and the first packing layer 14 along with the rising of the water level, the water enters the water under the pressure in the water inlet pipe 11, the impact rotating fan blade 333 rotates to drive the first worm 33 to rotate, the first worm 33 drives the first worm gear 321 to synchronously rotate, the first cleaning plate 3 rotates to drive the arc-shaped scraper 31 to clean the first filter plate 13, the first filter plate 13 is prevented from being blocked, the impact rotating fan blade 333 rotates through the rare earth tail water, the driving force can not be used, the output of the power is saved, the energy is saved and the emission is reduced, the driving motor 25 drives the rotating main shaft 41 to rotate, the rotating main shaft 41 drives the arc-shaped scraper 31 to clean the surface of the second filter plate 23, the second filter plate 23 is prevented from being blocked, the coaxial worm 411 rotates to drive the transmission worm gear 42 to rotate, the, the long pull rod 422 drives the pushing movable plate 43 to move up and down, when the short rod 421 pulls the long pull rod 422 to move up, the pushing movable plate 43 and the pushing sealing plate 44 are pulled apart, the limiting strip 4421 is buckled with one side of the first water leakage hole 431, the rare earth tail water above the pushing movable plate 43 can enter the lower part of the pushing sealing plate 44 from the first water leakage hole 431 and the second water leakage hole 441, when the short rod 421 pulls the long pull rod 422 to move down, the pushing movable plate 43 and the pushing sealing plate 44 are pressed close, the first water leakage hole 431 and the second water leakage hole 441 are dislocated, along with the continuous pushing of the long pull rod 422, the pushing movable plate 43 and the pushing sealing plate 44 synchronously move down, the rare earth tail water below the pushing sealing plate 44 is extruded, and the denitrification and dephosphorization processes of the rare earth tail water.
In summary, the following steps: this tombarthite tailwater is administered and is used dephosphorization processing apparatus of denitrogenation, carry out the secondary denitrogenation dephosphorization through thick denitrogenation dephosphorization section of thick bamboo 1 and the fine denitrification dephosphorization section of thick bamboo 2 to the tombarthite tailwater, the denitrogenation dephosphorization is effectual, be provided with first clearance board 3 and second clearance board 412 in thick denitrogenation dephosphorization section of thick bamboo 1 and the fine denitrification dephosphorization section of thick bamboo 2, at the in-process of denitrogenation dephosphorization, it is rotatory to drive arc scraper blade 31, can stir the tombarthite tailwater, can avoid first filter 13 and second filter 23 to block up simultaneously, and in the fine denitrification dephosphorization section of thick bamboo 2, through the propelling movement fly leaf 43 and the propelling movement closing plate 44 that reciprocate, realize the circulation and the pressurization of tombarthite tailwater, can improve the filter speed of tombar.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (10)
1. The utility model provides a tombarthite tailwater is administered and is used denitrogenation dephosphorization processing apparatus, includes a thick denitrogenation dephosphorization section of thick bamboo (1) and a fine denitrification dephosphorization section of thick bamboo (2), its characterized in that: the lower extreme of thick denitrogenation dephosphorization section of thick bamboo (1) is connected with inlet tube (11) and first sewage outlet pipe (12), the inside of thick denitrogenation dephosphorization section of thick bamboo (1) is provided with first filter (13), the upper surface of first filter (13) is provided with first packing layer (14), fixedly connected with honeycomb duct (15) on the lateral wall of thick denitrogenation dephosphorization section of thick bamboo (1) above first packing layer (14), the one end of honeycomb duct (15) and the lateral wall fixed connection of smart denitrogenation dephosphorization section of thick bamboo (2), the lower extreme of thick denitrogenation dephosphorization section of thick bamboo (1) is connected with first clearance board (3) through the bearing, the lower extreme of smart denitrogenation dephosphorization section of thick bamboo (2) is provided with water purification outlet pipe (21), be connected with second packing layer (22) on the position that smart denitrogenation dephosphorization section of thick bamboo (2) is close to water purification (21), be provided with second filter (23) in the smart denitr, be connected with second sewage outlet pipe (24) on the fine denitrogenation dephosphorization section of thick bamboo (2) lateral wall of second filter (23) top, the upper end fixedly connected with driving motor (25) of fine denitrogenation dephosphorization section of thick bamboo (2), the output of driving motor (25) runs through fine denitrogenation dephosphorization section of thick bamboo (2) to be connected with rotatory pusher (4).
2. The denitrification and dephosphorization apparatus for rare earth tail water treatment according to claim 1, wherein: the upper end surfaces of the coarse denitrification dephosphorization barrel (1) and the fine denitrification dephosphorization barrel (2) are connected with an exhaust port (16), and one ends of the first sewage outlet pipe (12) and the second sewage outlet pipe (24) are connected with a sealing cover.
3. The denitrification and dephosphorization apparatus for rare earth tail water treatment according to claim 1, wherein: the first cleaning plate (3) is connected with arc-shaped scrapers (31) at an equal interval in a circle, the lower surface of the first cleaning plate (3) is fixedly connected with a supporting shaft (32), a first worm wheel (321) is sleeved on the supporting shaft (32), the first worm wheel (321) is meshed with a first worm (33), and the center of the first worm (33) is connected with a central shaft (331) in a penetrating mode.
4. The denitrification and dephosphorization apparatus for rare earth tail water treatment according to claim 3, wherein: the both ends of center pin (331) are passed through the bearing and are passed through the interior wall connection of a thick nitrogen and phosphorus removal section of thick bamboo (1), and the one end of center pin (331) is connected with rotating electrical machines (34), and rotating electrical machines (34) are installed on the outer wall of a thick nitrogen and phosphorus removal section of thick bamboo (1).
5. The denitrification and dephosphorization apparatus for rare earth tail water treatment according to claim 3, wherein: one end of the central shaft (331) is connected with a support frame (332), the support frame (332) is connected with the inner wall of the water inlet pipe (11), the other end of the central shaft (331) is connected with the inner wall of the coarse denitrification dephosphorization barrel (1) through a bearing, one end of the central shaft (331) close to the support frame (332) is connected with rotating fan blades (333) through a bearing, and the rotating fan blades (333) are arranged in the water inlet pipe (11).
6. The denitrification and dephosphorization apparatus for rare earth tail water treatment according to claim 1, wherein: rotatory pusher (4) are including rotatory main shaft (41), transmission worm wheel (42), propelling movement fly leaf (43) and propelling movement closing plate (44), the upper end of rotatory main shaft (41) is connected with coaxial worm (411), coaxial worm (411) and transmission worm wheel (42) meshing, rotatory main shaft (41) run through propelling movement fly leaf (43) and propelling movement closing plate (44), and the lower extreme of rotatory main shaft (41) is connected with second cleaning plate (412), the equidistant arc scraper blade (31) that is connected with of a week of second cleaning plate (412).
7. The denitrification and dephosphorization apparatus for rare earth tail water treatment according to claim 6, wherein: the transmission worm wheel (42) is connected with the top inside the fine denitrification dephosphorization barrel (2) through a support, the center of the transmission worm wheel (42) is movably and fixedly connected with a short rod (421), one end of the short rod (421) is hinged with a long pull rod (422), the lower end of the long pull rod (422) is hinged with a socket bearing (423), and the socket bearing (423) is movably connected with a push movable plate (43).
8. The denitrification and dephosphorization apparatus for rare earth tail water treatment according to claim 7, wherein: first hole (431) that leaks have been seted up to equidistant on propelling movement fly leaf (43), fixedly connected with socket joint section of thick bamboo (432) on the central point of propelling movement fly leaf (43) upper surface puts, and the upper end and the socket joint bearing (423) of socket joint section of thick bamboo (432) are connected, and socket joint section of thick bamboo (432) and propelling movement closing plate (44) swing joint have protruding stopper (433) of symmetrical connection on the inner wall of socket joint section of thick bamboo (432).
9. The denitrification and dephosphorization apparatus for rare earth tail water treatment according to claim 8, wherein: the second water leakage hole (441) is formed in the pushing sealing plate (44) at an equal distance, one side of the second water leakage hole (441) is connected with the limiting plate (442), the center of the upper surface of the pushing sealing plate (44) is provided with the inner sleeve (443) which is fixedly connected with the center of the upper surface of the pushing sealing plate, the outer wall of the inner sleeve (443) is symmetrically provided with the arc-shaped sliding grooves (4431), and the arc-shaped sliding grooves (4431) are movably connected with the protruding limiting blocks (433).
10. The denitrification and dephosphorization apparatus for rare earth tail water treatment according to claim 9, wherein: the upper end of the limiting plate (442) is fixedly connected with a limiting strip (4421), and the upper end of the limiting plate (442) penetrates through the first water leakage hole (431).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011361586.6A CN112473237A (en) | 2020-11-28 | 2020-11-28 | Tombarthite tail water is administered and is used denitrogenation dephosphorization processing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011361586.6A CN112473237A (en) | 2020-11-28 | 2020-11-28 | Tombarthite tail water is administered and is used denitrogenation dephosphorization processing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112473237A true CN112473237A (en) | 2021-03-12 |
Family
ID=74936610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011361586.6A Withdrawn CN112473237A (en) | 2020-11-28 | 2020-11-28 | Tombarthite tail water is administered and is used denitrogenation dephosphorization processing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112473237A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565187A (en) * | 2021-08-13 | 2021-10-29 | 郑州航空工业管理学院 | A drainage system for sponge city construction |
-
2020
- 2020-11-28 CN CN202011361586.6A patent/CN112473237A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565187A (en) * | 2021-08-13 | 2021-10-29 | 郑州航空工业管理学院 | A drainage system for sponge city construction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111704309A (en) | Water circulating device for grinding machine | |
| CN118079493B (en) | Landfill leachate preprocessing device at rubbish compression station | |
| CN112473237A (en) | Tombarthite tail water is administered and is used denitrogenation dephosphorization processing apparatus | |
| CN209507833U (en) | A kind of environmental project device for recycling sewage | |
| CN212800025U (en) | Water circulating device for grinding machine | |
| CN212356808U (en) | Sewage treatment device convenient to move | |
| CN214383939U (en) | Dredging trolley for tunnel construction | |
| CN214665415U (en) | Artificial snow cyclic utilization device | |
| CN213357304U (en) | Sludge concentration device | |
| CN114853216A (en) | Device and method for treating residual ammonia nitrogen after rare earth in-situ leaching by magnesium ammonium phosphate | |
| CN111330729B (en) | Swamp mud stone and yellow sand separating device | |
| CN211737115U (en) | Natural gas exploitation degritting water trap | |
| CN207694375U (en) | A kind of river heavy metal slag mud filter device | |
| CN112607914A (en) | Novel sewage purification circulation device for bio-pharmaceuticals convenient to water cyclic utilization | |
| CN113149291A (en) | Multifunctional sludge discharge device for sewage treatment | |
| CN112028315A (en) | Energy-saving sewage treatment equipment | |
| CN218991539U (en) | Mud collecting tank for treating waste drilling mud | |
| CN205216393U (en) | Wastewater treatment system | |
| CN218794532U (en) | Sewage treatment vehicle | |
| CN220520314U (en) | Heavy metal pollution control equipment | |
| CN214019659U (en) | A processing apparatus for domestic waste landfill leachate | |
| CN213357152U (en) | Effluent treatment plant is used in mine construction | |
| CN211497134U (en) | Heavy metal-containing sewage treatment equipment | |
| CN221093970U (en) | Colliery sewage treatment system | |
| CN219060046U (en) | Mud pumping device for piling building bridge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210312 |
|
| WW01 | Invention patent application withdrawn after publication |