CN112499840A - Industrial rare earth treatment and discharge sewage purification and filtration treatment device - Google Patents
Industrial rare earth treatment and discharge sewage purification and filtration treatment device Download PDFInfo
- Publication number
- CN112499840A CN112499840A CN202110043313.5A CN202110043313A CN112499840A CN 112499840 A CN112499840 A CN 112499840A CN 202110043313 A CN202110043313 A CN 202110043313A CN 112499840 A CN112499840 A CN 112499840A
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- rare earth
- purification
- frame
- blanking
- rack
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- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- 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
- C02F2303/04—Disinfection
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to purification and filtration treatment, in particular to a purification and filtration treatment device for industrial rare earth treatment discharged sewage. Mainly provides a need not to provide great purification place, carries out the secondary filter back to waste water, and the industrial rare earth who puts into sterile water intermittently controls cost handles and discharges sewage purification filtration processing apparatus. The utility model provides an industrial rare earth handles and discharges sewage purification filtration treatment device, including: the blanking mechanism is arranged on one side of the top of the bottom plate; the feeding mechanism is connected with the feeding mechanism; the other side of the top of the bottom plate is provided with the solid matter collecting frame. By arranging the blanking mechanism and the pushing mechanism, the waste water is treated for the first time to realize solid-liquid separation, and then is treated separately to realize the basic function of the device; through setting up slewing mechanism and purification mechanism, evenly spray the disinfection water intermittent type, the cooperation purifies, guarantees purifying quality.
Description
Technical Field
The invention relates to purification and filtration treatment, in particular to a purification and filtration treatment device for industrial rare earth treatment discharged sewage.
Background
Rare earth is an important mineral resource in China, and can play a very important role in a plurality of high and new technologies and industrial manufacturing due to the characteristics of rare earth elements, after the rare earth is mined, the rare earth is generally produced by adopting an in-situ ore leaching method, a large amount of chemical agents and a large amount of water are used in the process, and the waste water after the rare earth is extracted contains a large amount of harmful gases and radioactive substances, so that the waste water needs to be treated in a later stage.
Sewage purification is the process of purifying sewage for making sewage reach certain water of drainage or the quality of water requirement of reuse and purifying it, concentrate sewage at present to sewage treatment purification technology and place, area is big, put into once only afterwards and put into a large amount of disinfectants and filter and disinfect and purify it, consumption cost is high, consequently need set up one kind and need not to provide great purification place, carry out secondary filter back to waste water, intermittent type nature drops into sterile water, cost controlled's industry rare earth is handled and is discharged sewage purification filtration processing apparatus.
Disclosure of Invention
In order to overcome the defects that sewage is intensively placed, the occupied area is large, then a large amount of disinfectants are placed into the sewage for one time to filter, disinfect and purify the sewage, and the consumption cost is high, the invention has the technical problems that: the industrial rare earth treatment and discharge sewage purification and filtration treatment device has the advantages that a large purification place is not needed, after the wastewater is subjected to secondary filtration, sterile water is intermittently added, and the cost is controlled.
The technical implementation scheme of the invention is as follows: the utility model provides an industrial rare earth handles and discharges sewage purification filtration treatment device, including:
the blanking mechanism is arranged on one side of the top of the bottom plate;
the feeding mechanism is connected with the feeding mechanism;
the other side of the top of the bottom plate is provided with the solid matter collecting frame.
Optionally, unloading mechanism includes:
the blanking frame is arranged on one side of the top of the bottom plate;
the motor is arranged on one side of the bottom plate;
the top of the bottom plate is provided with a support rod, the upper part of the support rod is rotatably provided with a shaft sleeve, and a bevel gear group is connected between the shaft sleeve and an output shaft of the motor;
the lifting block is arranged on the blanking frame in a sliding manner;
the rotating shaft is rotatably connected to the feeding frame and is rotatably connected with the upper part of the lifting block;
and a first transmission component is connected between the rotating shaft and the shaft sleeve.
Optionally, the pushing mechanism comprises:
the middle side of the top of the bottom plate is provided with a flow rack, and a filter rack is connected between the two sides of the flow rack;
the filter rack comprises guide rails, a feeding rack, a filter rack and a push rod, wherein the guide rails are symmetrically connected to one side of the feeding rack;
the upper part of the lifting block is connected with a rack rod;
the two sides of the blanking frame are rotatably connected with deflector rods, and the deflector rods are slidably connected with the push rods;
the rotating shafts of the gears and the shifting rods are connected with gears, and the gears are meshed with the rack rods.
Optionally, the device further comprises a closing mechanism, wherein the closing mechanism comprises:
the two sides of the blanking frame are both connected with the fixed blocks, and the outer sides of the fixed blocks and the bottoms of the rack rods are both connected with the chaste tooth assemblies;
the blanking frame is symmetrically and slidably provided with a closing plate at one side, and the bottoms of the closing plates are connected with a first handle;
the second spring is connected between the same sides of the closing plates;
and the rack assembly is connected between the outer sides of the two closed plates and the transmission shaft of the spur assembly on the same side.
Optionally, still include slewing mechanism, slewing mechanism includes:
the water storage barrel is arranged on one side of the top of the bottom plate, the stirring rod is rotatably arranged at the bottom of the inner wall of the water storage barrel, and a second transmission assembly is connected between the stirring rod and the output shaft of the motor.
Optionally, still including purifying mechanism, purifying mechanism includes:
the two sides of the water storage barrel are connected with the fixed rods, a disinfection bottle is connected between the fixed rods, and the top of the disinfection bottle is provided with a switch;
the bottom of the disinfection bottle is provided with a spray head;
the outer side of the upper part of the disinfection bottle is connected with a rotating ring.
Optionally, still include filter mechanism, filter mechanism includes:
the filter, flowing water frame top one side slidingtype is equipped with the filter, and filter top one side is connected with the filter sieve, and the filter sieve top is equipped with the second handle.
Optionally, the flow shelf is sloped.
The invention has the following advantages: by arranging the blanking mechanism and the pushing mechanism, the waste water is treated for the first time to realize solid-liquid separation, and then is treated separately to realize the basic function of the device; by arranging the rotating mechanism and the purifying mechanism, the sterilizing water is intermittently and uniformly sprayed, and the purifying quality is ensured in cooperation with purification; through setting up filtering mechanism, carry out the secondary to sewage and filter out the back with tiny particle matter and carry out additional processing, guarantee purifying quality.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the blanking mechanism of the present invention.
Fig. 3 is a schematic perspective view of the pushing mechanism of the present invention.
Fig. 4 is a schematic perspective view of the closure mechanism of the present invention.
Fig. 5 is a schematic perspective view of the rotating mechanism and the purifying mechanism of the present invention.
Fig. 6 is a schematic perspective view of the filter mechanism of the present invention.
The meaning of the reference symbols in the figures: 1: bottom plate, 2: unloading mechanism, 21: blanking frame, 22: motor, 23: support bar, 24: set of tapered teeth, 25: rotating shaft, 26: lifting block, 27: first transmission assembly, 3: push mechanism, 31: flow rack, 32: filter frame, 33: guide rail, 34: push rod, 35: rack bar, 36: deflector rod, 37: gear, 38: first spring, 4: closing mechanism, 41: spur assembly, 42: fixed block, 43: closing plate, 44: rack assembly, 45: second spring, 46: first handle, 5: rotation mechanism, 51: water storage tank, 52: puddler, 53: second transmission assembly, 6: purification mechanism, 61: fixing rod, 62: sterilization bottle, 63: spray head, 64: switch, 65: swivel, 7: filter mechanism, 71: filter plate, 73: second handle, 72: a screen, 8: a solid matter collection frame.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings. It is only noted that the invention is intended to be limited to the specific forms set forth herein, including any reference to the drawings, as well as any other specific forms of embodiments of the invention.
Example 1
The utility model provides an industry rare earth handles and discharges sewage purification filtration treatment device, as shown in figure 1, including bottom plate 1, unloading mechanism 2, push mechanism 3 and solid matter collection frame 8, the bottom plate 1 top rear side is equipped with unloading mechanism 2, is connected with push mechanism 3 on the unloading mechanism 2, and bottom plate 1 top front side is equipped with solid matter collection frame 8.
The staff can put into unloading mechanism 2 with waste water in, start unloading mechanism 2 and carry out intermittent type unloading to waste water, can carry out automatic solid-liquid separation when waste water gets into push mechanism 3, and liquid is automatic backward to flow, and unloading mechanism 2 functions simultaneously and drives push mechanism 3 and operate and carry out the propelling movement forward to the solid and get into solid matter collection frame 8, and all handling finishes, stops unloading mechanism 2 and functions.
Example 2
On the basis of embodiment 1, as shown in fig. 2 and fig. 3, the blanking mechanism 2 includes a blanking frame 21, a motor 22, a support rod 23, a bevel gear set 24, a rotation shaft 25, a lifting block 26 and a first transmission component 27, the blanking frame 21 is disposed on the rear side of the top of the bottom plate 1, the motor 22 is disposed on the right side of the bottom plate 1, the support rod 23 is disposed on the top of the bottom plate 1, a shaft sleeve is rotatably disposed on the upper portion of the support rod 23, the bevel gear set 24 is connected between the shaft sleeve and an output shaft of the motor 22, the lifting block 26 is slidably disposed on the front portion of the blanking frame 21, the rotation shaft 25 is rotatably connected to the upper portion of the lifting block 26, and the first transmission component 27 is connected between.
The pushing mechanism 3 comprises a water flowing frame 31, a filtering frame 32, a guide rail 33, a push rod 34, a rack bar 35, a shifting rod 36, a gear 37 and a first spring 38, the water flowing frame 31 is arranged on the middle portion of the top of the bottom plate 1, the filtering frame 32 is connected between the left side and the right side of the water flowing frame 31, the guide rail 33 is symmetrically connected to the rear side of the discharging frame 21, the push rod 34 is connected between the guide rails 33 in a sliding mode, the middle portion of the push rod 34 is connected with the filtering frame 32 in a sliding mode, the first spring 38 is connected between the middle portion of the push rod 34 and the rear side of the push rod, the rack bar 35 is connected to the upper portion of the lifting block 26, the shifting rod 36 is connected to the left side and the right side of.
The worker can put sewage into the blanking frame 21, the initial state lifting block 26 blocks the blanking frame 21, the sewage cannot flow out, the motor 22 is started, the output shaft of the motor 22 rotates to drive the first transmission component 27 to rotate through the bevel gear group 24, the first transmission component 27 rotates to drive the lifting block 26 to reciprocate up and down in the blanking frame 21 through the rotating shaft 25, the lifting block 26 moves upwards to blank the sewage, the lifting block 26 moves downwards to stop blanking again, the sewage blanking filters solid matters through the filter frame 32, the solid matters stay on the filter frame 32, the lifting block 26 moves upwards and also drives the gear 37 to rotate through the rack bar 35, the gear 37 rotates to drive the push rod 34 to move backwards through the shift rod 36, the first spring 38 is stretched, the lifting block 26 drives the gear 37 and the shift rod 36 to rotate and reset through the rack bar 35 when moving downwards, the first spring 38 compresses to drive the push rod 34 to move forwards to push the solid matters on the filter frame 32 forwards, then the solid matter can automatically slide into the solid matter collecting frame 8, the filtered wastewater automatically flows backwards through the water flowing frame 31, the solid-liquid separation can be carried out on the wastewater in such a reciprocating way, and the operation of the motor 22 is stopped after all the wastewater is treated.
Example 3
On the basis of embodiment 2, as shown in fig. 4 to 6, the device further comprises a closing mechanism 4, the closing mechanism 4 comprises a rack component 41, a fixing block 42, a closing plate 43, a rack component 44, a second spring 45 and a first handle 46, the fixing block 42 is connected to the left side and the right side of the blanking frame 21, the rack component 41 is connected between the outer side of the fixing block 42 and the bottom of the rack rod 35, the closing plate 43 is symmetrically and slidably arranged at the front of the blanking frame 21, the first handle 46 is connected to the bottom of the closing plate 43, the second spring 45 is connected between the left side and the right side of the closing plate 43, and the rack component 44 is connected between the outer sides of the two closing plates 43 and the transmission shaft of the rack component.
The initial closing plate 43 is in a combined state, the rack rod 35 moves upwards to drive the rack assembly 44 to operate through the thorn tooth assembly 41, the rack assembly 44 operates to drive the two side closing plates 43 to move outwards, the second spring 45 is stretched, the closing plates 43 can carry out blanking on waste water in the outward movement mode, the thorn tooth assembly 41 can not operate when the rack rod 35 moves downwards, all the parts behind the rack rod are driven to stop operating, after the rack rod 35 and the thorn tooth assembly 41 reset, the second spring 45 rebounds to drive the closing plates 43 to move inwards, and meanwhile, the rack assembly 44 is driven to reversely operate and reset.
The automatic stirring device is characterized by further comprising a rotating mechanism 5, wherein the rotating mechanism 5 comprises a water storage barrel 51, a stirring rod 52 and a second transmission component 53, the water storage barrel 51 is arranged on the rear side of the top of the bottom plate 1, the stirring rod 52 is rotatably arranged at the bottom of the inner wall of the water storage barrel 51, and the second transmission component 53 is connected between the stirring rod 52 and the output shaft of the motor 22.
The staff can pour the sterile water into the water storage bucket 51, and the waste water that finishes filtering flows into the water storage bucket 51 through the flowing water frame 31 automatically, and the output shaft of motor 22 rotates and drives puddler 52 through second drive assembly 53 and rotate and stir waste water and sterile water, accomplishes and purifies.
Still including purifying mechanism 6, purifying mechanism 6 is connected with the dead lever 61 including dead lever 61, disinfection bottle 62, shower nozzle 63, switch 64 and change 65, and the water storage bucket 51 left and right sides is connected with dead lever 61, is connected with disinfection bottle 62 between the dead lever 61, and disinfection bottle 62 top is equipped with switch 64, and disinfection bottle 62 bottom is equipped with shower nozzle 63, and the outside of disinfection bottle 62 upper portion is connected with change 65.
The push rod 34 moves backwards to be in contact with the switch 64, the switch 64 is started to discharge the disinfectant in the disinfection bottle 62, the disinfectant is sprayed into the wastewater in the water storage barrel 51 through the spray head 63, the push rod 34 does not contact with the switch 64 any more when moving forwards, the switch 64 is automatically closed, the disinfectant is stopped being sprayed, and the reciprocating operation is carried out, so that the disinfectant can be uniformly sprayed on the wastewater intermittently to be matched with purification.
The water flow rack is characterized by further comprising a filtering mechanism 7, wherein the filtering mechanism 7 comprises a filtering plate 71, a second handle 73 and a filtering screen 72, the filtering plate 71 is arranged on the rear side of the top of the water flow rack 31 in a sliding mode, the filtering screen 72 is connected to the rear side of the top of the filtering plate 71, and the second handle 73 is arranged on the top of the filtering screen 72.
The waste water that finishes filtering gets into on the flowing water frame 31 and contacts with filter 71, carries out the secondary filter through filter 72, filters little particulate matter in the waste water, and little particulate matter can stop at filter 72, treats to pile up the material more on the filter 72, and the stop device function promotes second handle 73 and drives filter 71 and above all parts rebound and break away from flowing water frame 31, and it can to clear up the little particulate matter on the filter 72 afterwards.
It should be understood that this example is only for illustrating the present invention and is not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Claims (8)
1. The utility model provides an industry rare earth handles sewage purification filtration treatment device that discharges, characterized by, including:
a blanking mechanism (2) is arranged on one side of the top of the bottom plate (1);
the pushing mechanism (3) is connected to the blanking mechanism (2);
a solid matter collecting frame (8), and the other side of the top of the bottom plate (1) is provided with the solid matter collecting frame (8).
2. The industrial rare earth treatment wastewater purification and filtration treatment device according to claim 1, wherein the blanking mechanism (2) comprises:
the blanking frame (21), wherein the blanking frame (21) is arranged on one side of the top of the bottom plate (1);
the motor (22) is arranged on one side of the bottom plate (1);
the top of the bottom plate (1) is provided with a support rod (23), the upper part of the support rod (23) is rotatably provided with a shaft sleeve, and a bevel gear group (24) is connected between the shaft sleeve and an output shaft of the motor (22);
the lifting block (26) is arranged on the blanking frame (21) in a sliding mode;
the rotating shaft (25) is rotatably connected to the blanking frame (21), and the rotating shaft (25) is rotatably connected with the upper part of the lifting block (26);
and a first transmission assembly (27) is connected between the rotating shaft (25) and the shaft sleeve.
3. The industrial rare earth treatment wastewater purification and filtration treatment device according to claim 1, wherein the pushing mechanism (3) comprises:
the water flowing rack (31) is arranged on the middle side of the top of the bottom plate (1), and a filter rack (32) is connected between the two sides of the water flowing rack (31);
the automatic feeding device comprises guide rails (33), wherein the guide rails (33) are symmetrically connected to one side of a blanking frame (21), push rods (34) are connected between the guide rails (33) in a sliding manner, the middle parts of the push rods (34) are connected with a filter frame (32) in a sliding manner, and first springs (38) are connected between the push rods and the filter frame;
a rack rod (35), wherein the upper part of the lifting block (26) is connected with the rack rod (35);
the two sides of the blanking frame (21) are rotatably connected with the shifting rods (36), and the shifting rods (36) are slidably connected with the push rod (34);
the rotating shafts of the gear (37) and the shifting lever (36) are connected with the gear (37), and the gear (37) is meshed with the rack rod (35).
4. The industrial rare earth treatment wastewater purification and filtration treatment device according to claim 2 or 3, further comprising a closing mechanism (4), wherein the closing mechanism (4) comprises:
the two sides of the blanking frame (21) are both connected with the fixed blocks (42), and the outer sides of the fixed blocks (42) and the bottoms of the rack rods (35) are both connected with the chaste tooth assemblies (41);
the blanking device comprises a closing plate (43), wherein the closing plate (43) is symmetrically arranged on one side of a blanking frame (21) in a sliding mode, and the bottom of each closing plate (43) is connected with a first handle (46);
the second spring (45) is connected between the same sides of the closing plates (43);
and a rack assembly (44) is connected between the outer sides of the two closing plates (43) and the transmission shaft of the same-side chaste assembly (41).
5. The industrial rare earth treatment discharged sewage purification and filtration treatment device according to claim 4, further comprising a rotating mechanism (5), wherein the rotating mechanism (5) comprises:
the water storage barrel (51) is arranged on one side of the top of the bottom plate (1), the stirring rod (52) is rotatably arranged at the bottom of the inner wall of the water storage barrel (51), and a second transmission component (53) is connected between the stirring rod (52) and the output shaft of the motor (22).
6. The industrial rare earth treatment wastewater purification and filtration treatment device according to claim 5, further comprising a purification mechanism (6), wherein the purification mechanism (6) comprises:
the water storage device comprises fixing rods (61), wherein the fixing rods (61) are connected to two sides of a water storage barrel (51), disinfection bottles (62) are connected between the fixing rods (61), and a switch (64) is arranged at the top of each disinfection bottle (62);
the spray head (63) is arranged at the bottom of the disinfection bottle (62);
the outer side of the upper part of the rotating ring (65) and the sterilizing bottle (62) is connected with the rotating ring (65).
7. The industrial rare earth treatment wastewater purification and filtration treatment device according to claim 6, further comprising a filtration mechanism (7), wherein the filtration mechanism (7) comprises:
the water filter structure comprises a filter plate (71), wherein the filter plate (71) is arranged on one side of the top of the water flow frame (31) in a sliding mode, a filter screen (72) is connected to one side of the top of the filter plate (71), and a second handle (73) is arranged on the top of the filter screen (72).
8. The industrial rare earth treatment discharged sewage purification and filtration treatment device according to claim 3, wherein: the flow shelf (31) is inclined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110043313.5A CN112499840A (en) | 2021-01-13 | 2021-01-13 | Industrial rare earth treatment and discharge sewage purification and filtration treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110043313.5A CN112499840A (en) | 2021-01-13 | 2021-01-13 | Industrial rare earth treatment and discharge sewage purification and filtration treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112499840A true CN112499840A (en) | 2021-03-16 |
Family
ID=74952999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110043313.5A Withdrawn CN112499840A (en) | 2021-01-13 | 2021-01-13 | Industrial rare earth treatment and discharge sewage purification and filtration treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112499840A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113185036A (en) * | 2021-06-07 | 2021-07-30 | 熊永乐 | Waste water purification equipment is used in tombarthite production |
| CN113775934A (en) * | 2021-09-27 | 2021-12-10 | 黄日耀 | Industrial sewage treatment is with discharging interface from clean type |
| CN114558360A (en) * | 2022-02-17 | 2022-05-31 | 肖五根 | Sewage filtering device for industrial sewage discharge |
| CN116002779A (en) * | 2022-11-15 | 2023-04-25 | 临沂恩科半导体科技有限公司 | Laboratory waste water rapid filtration processing device |
-
2021
- 2021-01-13 CN CN202110043313.5A patent/CN112499840A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113185036A (en) * | 2021-06-07 | 2021-07-30 | 熊永乐 | Waste water purification equipment is used in tombarthite production |
| CN113775934A (en) * | 2021-09-27 | 2021-12-10 | 黄日耀 | Industrial sewage treatment is with discharging interface from clean type |
| CN114558360A (en) * | 2022-02-17 | 2022-05-31 | 肖五根 | Sewage filtering device for industrial sewage discharge |
| CN114558360B (en) * | 2022-02-17 | 2023-08-11 | 湖南波乐美环保科技有限公司 | Sewage filtering device for industrial sewage discharge |
| CN116002779A (en) * | 2022-11-15 | 2023-04-25 | 临沂恩科半导体科技有限公司 | Laboratory waste water rapid filtration processing device |
| CN116002779B (en) * | 2022-11-15 | 2023-10-10 | 广东融祥环境科技有限公司 | Laboratory waste water rapid filtration processing device |
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Application publication date: 20210316 |
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