CN113384953B - Scale removing mechanism of wastewater filtering device and implementation method thereof - Google Patents
Scale removing mechanism of wastewater filtering device and implementation method thereof Download PDFInfo
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- CN113384953B CN113384953B CN202110772200.9A CN202110772200A CN113384953B CN 113384953 B CN113384953 B CN 113384953B CN 202110772200 A CN202110772200 A CN 202110772200A CN 113384953 B CN113384953 B CN 113384953B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/461—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element brushes
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Abstract
The invention discloses a scale removing mechanism of a wastewater filtering device and an implementation method thereof, belonging to the technical field of scale removing. The invention provides a scale removing mechanism of a wastewater filtering device and an implementation method thereof.A left tank body and a right tank body are fixed with two sides of a ring seat through flanges, the flanges are convenient to realize the installation and the disassembly of the ring seat and the later maintenance, a cleaning brush is synchronously extended or shortened with a telescopic component, and the cleaning brush is separated from the ring seat to supply wastewater to flow a filtering component in an extended state; under shortening the state, clearance brush seal ring seat both sides form the cavity of cladding filtering component to cavity and feeding power component intercommunication for in the solution inflow cavity of clearance incrustation scale, cooperation clearance brush clearance filtering component accomplish thoroughly cleaing away of incrustation scale.
Description
Technical Field
The invention relates to the technical field of scale removal, in particular to a scale removal mechanism of a wastewater filtering device and an implementation method thereof.
Background
Waste water need be through filtering, after waste water pipeline uses a certain life, wherein probably gather more incrustation scale on waste water filter equipment, lead to being used for filterable aperture to take place to block up, lead to filterable effect and speed to reduce, the scale removal mode of present stage is all direct to adding the detergent in the waste water pipeline, make the incrustation scale reduce with the bonding strength of waste water pipe, then use the incrustation scale in the brush gets rid of the waste water pipe through the manual work, this kind of mode removes the incrustation scale, on the one hand consuming time is longer, intensity of labour increases, and the scale removal effect is relatively poor, on the other hand, the use of detergent also makes the cost-push of scale removal.
Disclosure of Invention
The present invention is directed to a scale removing mechanism of a wastewater filtering apparatus and a method for implementing the same, which solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: a scale removing mechanism of a wastewater filtering device comprises a left tank body and a right tank body, wherein flanges are welded on the opposite port edges of the left tank body and the right tank body, support legs are fixed at the bottoms of the left tank body and the right tank body, and the left tank body and the right tank body are fixed with the two sides of a ring seat through the flanges;
the cleaning device is characterized in that a rotating assembly, a telescopic assembly, a cleaning brush, a feeding power assembly and a filtering assembly are arranged in the ring seat, the feeding power assembly is connected with the rotating assembly, the rotating assembly is connected with the filtering assembly, the feeding power assembly is used for driving the rotating assembly and the filtering assembly to rotate, the telescopic assembly is inserted into two sides of the rotating assembly, the rotating assembly drives the telescopic assembly to extend or shorten, the cleaning brush is fixed on the telescopic assembly, the cleaning brush synchronously extends or shortens with the telescopic assembly, and the cleaning brush is separated from the ring seat in an extending state to supply wastewater to flow the filtering assembly; under shortening the state, clearance brush seal ring seat both sides form the cavity of cladding filtering component to cavity and feeding power component intercommunication for the solution of clearance incrustation scale flows into in the cavity, and the cooperation clearance brush clearance filtering component.
Furthermore, the rotating assembly comprises an upper rotating shaft, an upper gear, a lower gear and a lower rotating shaft, the upper gear and the lower gear are respectively penetrated through by the upper rotating shaft and the lower rotating shaft, the upper rotating shaft and the lower rotating shaft are positioned at the upper end and the lower end of the ring seat, screw holes are machined at the two ends of the upper rotating shaft, and sliding holes are machined at the two ends of the lower rotating shaft.
Further, flexible subassembly includes left screw rod, left slide bar, left board, right screw rod, right slide bar and right board, the upper and lower both ends of left board are fixed with left screw rod and left slide bar respectively, the upper and lower both ends of right board are fixed with right screw rod and right slide bar respectively, the port of left screw rod and right screw rod inserts the screw inner gearing of last pivot both sides, right screw rod and right slide bar insert down the slide opening of the both sides of pivot and slide, the cleaning brush is fixed respectively on the relative surface of left board and right board.
Furthermore, the feeding power assembly comprises a motor, a motor shaft, a sleeve, a feeding pipe, a discharging pipe, a first bevel gear and a second bevel gear, one end of the motor shaft is connected with the motor, the other end of the motor shaft penetrates into the sleeve, the feeding pipe is connected with the side face of the sleeve, one end of the discharging pipe penetrates into the sleeve, the other end of the discharging pipe is fixed with the first bevel gear, the feeding pipe and the discharging pipe are fixed through a rod body, and the discharging pipe is communicated with the feeding pipe;
the first bevel gear is meshed with the second bevel gear, and the second bevel gear is penetrated by the upper rotating shaft.
Furthermore, the filtering component comprises a gear ring and a filtering net, the outer ring of the filtering net is fixed with the gear ring, and the upper end and the lower end of the gear ring are respectively meshed with the upper gear and the lower gear.
Furthermore, the upper end of the ring seat is provided with a cavity for accommodating the upper gear and the first bevel gear, the bottom end of the discharge pipe is communicated with the cavity, and the ring seat below the first bevel gear is also provided with a slotted hole for communicating the filter screen with the cavity.
The invention provides another technical scheme, which comprises an implementation method of a scale removing mechanism of a wastewater filtering device, and the implementation method comprises the following steps:
s1: the driving motor works, the motor drives the motor shaft to synchronously rotate, and the motor shaft simultaneously drives the discharge pipe and the second bevel gear to rotate in the rotating process;
s2: the second bevel gear is meshed with the second bevel gear, so that the upper rotating shaft is driven to rotate, the filter screen also rotates in the rotating process of the upper rotating shaft, and the left screw rod and the right screw rod oppositely move along the screw hole;
s3: the cleaning brushes on the left plate and the right plate are contacted with the filter screen when moving oppositely, and the left plate and the right plate move to be contacted with two side surfaces of the ring seat for sealing the ring seat;
s4: the scale cleaning solution flows into the sleeve through the feed pipe, then flows into the cavity of the ring seat through the discharge pipe, flows into the inner part of the ring seat through the slotted hole to immerse the filter screen, and finishes cleaning after soaking the scale on the filter screen for a period of time;
s5: the motor drives the motor shaft to rotate reversely, the left plate and the right plate move reversely, and the solution in the ring seat is discharged.
Furthermore, aiming at S3, the screw holes on the two sides of the upper rotating shaft are symmetrical in thread.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides a scale removing mechanism of a wastewater filtering device and an implementation method thereof.A left tank body and a right tank body are fixed with two sides of a ring seat through flanges, the flanges are convenient to realize the installation and the disassembly of the ring seat and the later maintenance, a cleaning brush is synchronously extended or shortened with a telescopic component, and the cleaning brush is separated from the ring seat to supply wastewater to flow a filtering component in an extended state; under shortening the state, clearance brush seal ring seat both sides form the cavity of cladding filtering component to cavity and feeding power component intercommunication for the solution of clearance incrustation scale flows into in the cavity, and the cooperation clearance brush clearance filtering component.
2. The invention provides a scale removing mechanism of a wastewater filtering device and an implementation method thereof.A driving motor works, a second bevel gear is meshed with a second bevel gear to drive an upper rotating shaft to rotate, a filter screen also rotates and a left screw and a right screw move oppositely along screw holes in the rotating process of the upper rotating shaft, the screw holes on two sides of the upper rotating shaft are symmetrical in thread, cleaning brushes on a left plate and a right plate are contacted with the filter screen when moving oppositely, the left plate and the right plate move to be contacted with two side surfaces of a ring seat and are used for sealing the ring seat, a solution for cleaning scale flows into a sleeve through a feed pipe, then flows into a cavity of the ring seat through a discharge pipe, flows into the inner part of the ring seat through a slotted hole to immerse the filter screen, and finishes removing after soaking one end of the scale on the filter screen; carry out the cleaing away of incrustation scale, and need not to dismantle the filter screen, the brush is cleared up in the rotatory cooperation of filter screen in clearance initial stage simultaneously, cleans the adnexed impurity in filter screen surface down, exposes the incrustation scale, solution and the contact velocity of incrustation scale with higher speed, and when cooperation later stage left board and right board separation, filter screen reverse rotation continues to clean the filter screen surface, accomplishes thoroughly cleaing away of incrustation scale.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is an overall exploded view of the present invention;
FIG. 3 is a block diagram of the telescoping and rotating assemblies of the present invention;
FIG. 4 is a state view of the retraction assembly of the present invention without the sealing ring seat;
FIG. 5 is a state view of the seal ring seat of the retraction assembly of the present invention;
fig. 6 is a view showing the engagement of the filter assembly with the upper gear and the lower gear according to the present invention.
In the figure: 1. a left tank body; 2. a right tank body; 3. a flange; 4. a support leg; 5. a ring seat; 6. a rotating assembly; 61. rotating the shaft upwards; 611. a screw hole; 62. an upper gear; 63. a lower gear; 64. a lower rotating shaft; 641. a slide hole; 7. a telescopic assembly; 71. a left screw; 72. a left slide bar; 73. a left panel; 74. a right screw; 75. a right slide bar; 76. a right plate; 8. cleaning a brush; 9. a feed power assembly; 91. a motor; 92. a motor shaft; 93. a sleeve; 94. a feeding pipe; 95. a discharge pipe; 96. a first bevel gear; 97. a second bevel gear; 10. a filter assembly; 101. a ring gear; 102. and (4) a filter screen.
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.
Referring to fig. 1-6, a scale removing mechanism of a wastewater filtering device comprises a left tank body 1 and a right tank body 2, wherein flanges 3 are welded on the opposite port edges of the left tank body 1 and the right tank body 2, support legs 4 are fixed at the bottoms of the left tank body 1 and the right tank body 2, the left tank body 1 and the right tank body 2 are fixed with two sides of a ring seat 5 through the flanges 3, and the flanges 3 are convenient to mount and dismount the ring seat 5, so that later maintenance is facilitated.
A rotating assembly 6, a telescopic assembly 7, a cleaning brush 8, a feeding power assembly 9 and a filtering assembly 10 are installed in the ring seat 5, the feeding power assembly 9 is connected with the rotating assembly 6, the rotating assembly 6 is connected with the filtering assembly 10, the feeding power assembly 9 is used for driving the rotating assembly 6 and the filtering assembly 10 to rotate, the telescopic assembly 7 is inserted into two sides of the rotating assembly 6, the rotating assembly 6 drives the telescopic assembly 7 to extend or shorten, the cleaning brush 8 is fixed on the telescopic assembly 7, the cleaning brush 8 synchronously extends or shortens with the telescopic assembly 7, and in the extending state, the cleaning brush 8 is separated from the ring seat 5 to allow waste water to flow through the filtering assembly 10; under shortening the state, 8 sealed ring seats of cleaning brush 5 both sides form the cavity of cladding filtering component 10 to the cavity is communicated with feeding power component 9, and the solution for clearing up the incrustation scale flows into in the cavity, cooperates 8 cleaning brush to clear up filtering component 10.
The telescopic assembly 7 comprises a left screw rod 71, a left sliding rod 72, a left plate 73, a right screw rod 74, a right sliding rod 75 and a right plate 76, the upper end and the lower end of the left plate 73 are respectively fixed with the left screw rod 71 and the left sliding rod 72, the upper end and the lower end of the right plate 76 are respectively fixed with the right screw rod 74 and the right sliding rod 75, the ports of the left screw rod 71 and the right screw rod 74 are inserted into screw holes 611 on two sides of the upper rotating shaft 61 for inner meshing, the right screw rod 74 and the right sliding rod 75 are inserted into sliding holes 641 on two sides of the lower rotating shaft 64 for sliding, the cleaning brush 8 is respectively fixed on the opposite surfaces of the left plate 73 and the right plate 76, the sealing of the ring seat 5 is realized through the telescopic state of the left plate 73 and the right plate 76, so that the cleaned solution can be coated on the filter screen 102 for a long time to clean scale without disassembling the filter screen 102, meanwhile, the filter screen 102 is rotatably matched with the cleaning brush 8 in the beginning stage of cleaning, impurities attached to clean the surface of the filter screen 102, the scale is exposed, the scale is accelerated, the contact speed of the solution and the scale with the scale is matched with the separation of the left plate 73 and the right plate 76, and the reverse direction, the surface of the filter screen 102 is cleaned, and the scale is cleaned completely.
The rotating assembly 6 comprises an upper rotating shaft 61, an upper gear 62, a lower gear 63 and a lower rotating shaft 64, the upper gear 62 and the lower gear 63 are respectively penetrated by the upper rotating shaft 61 and the lower rotating shaft 64, the upper rotating shaft 61 and the lower rotating shaft 64 are positioned at the upper end and the lower end of the ring seat 5, screw holes 611 are processed at two ends of the upper rotating shaft 61, and sliding holes 641 are processed at two ends of the lower rotating shaft 64.
The feeding power assembly 9 comprises a motor 91, a motor shaft 92, a sleeve 93, a feeding pipe 94, a discharging pipe 95, a first bevel gear 96 and a second bevel gear 97, one end of the motor shaft 92 is connected with the motor 91, the other end of the motor shaft 92 penetrates into the sleeve 93, the feeding pipe 94 is connected with the side surface of the sleeve 93, one end of the discharging pipe 95 penetrates into the sleeve 93, the other end of the discharging pipe 95 is fixed with the first bevel gear 96, the feeding pipe 94 and the discharging pipe 95 are fixed through a rod body, the discharging pipe 95 is communicated with the feeding pipe 94, the upper end of the ring seat 5 is provided with a cavity for accommodating the upper gear 62 and the first bevel gear 96, the bottom end of the discharging pipe 95 is communicated with the cavity, the ring seat 5 below the first bevel gear 96 is also provided with a slotted hole for communicating the filter screen 102 with the cavity, the sleeve 93 is arranged so that the motor shaft 92 can drive the discharging pipe 95 to rotate, meanwhile, solution flowing into the feeding pipe 94 flows into the discharging pipe 95 through the sleeve 93 and then flows into the slotted hole through the discharging pipe 95, and the filter screen 102 is completed;
the first bevel gear 96 meshes with the second bevel gear 97, and the upper rotation shaft 61 penetrates the second bevel gear 97.
The filtering component 10 comprises a gear ring 101 and a filtering net 102, an outer ring of the filtering net 102 is fixed with the gear ring 101, the upper end and the lower end of the gear ring 101 are respectively meshed with the upper gear 62 and the lower gear 63, the filtering net 102 is driven to rotate through the gear ring 101, and dead angles in cleaning are avoided.
The implementation method of the scale removing mechanism of the wastewater filtering device comprises the following steps:
the method comprises the following steps: the motor 91 is driven to work, the motor 91 drives the motor shaft 92 to synchronously rotate, and the motor shaft 92 simultaneously drives the discharge pipe 95 and the second bevel gear 97 to rotate in the rotating process;
step two: the second bevel gear 97 and the second bevel gear 97 are meshed to drive the upper rotating shaft 61 to rotate, and during the rotation of the upper rotating shaft 61, the filter screen 102 also rotates and the left screw 71 and the right screw 74 move towards each other along the screw hole 611;
step three: screw holes 611 on two sides of the upper rotating shaft 61 are symmetrical in thread, cleaning brushes 8 on the left plate 73 and the right plate 76 are in contact with the filter screen 102 when moving oppositely, and the left plate 73 and the right plate 76 move to be in contact with two side faces of the ring seat 5 and are used for sealing the ring seat 5;
step four: the scale cleaning solution flows into the sleeve 93 through the feed pipe 94, then flows into the cavity of the ring seat 5 through the discharge pipe 95, flows into the interior of the ring seat 5 through the slotted holes to immerse the filter screen 102, and finishes cleaning after soaking the scale on the filter screen 102 for a period of time;
step five: the motor 91 drives the motor shaft 92 to rotate reversely, the left plate 73 and the right plate 76 move reversely, and the solution in the ring seat 5 is discharged.
In conclusion; the invention relates to a scale removing mechanism of a wastewater filtering device and an implementation method thereof.A left tank body 1 and a right tank body 2 are fixed with two sides of a ring seat 5 through flanges 3, the flanges 3 are convenient to realize the installation and the disassembly of the ring seat 5 and the later maintenance, the ring seat 5 is sealed through the telescopic states of a left plate 73 and a right plate 76, so that a cleaning solution can be coated on a filter screen 102 for a long time to remove the scale, the filter screen 102 is not required to be disassembled, meanwhile, the filter screen 102 is rotationally matched with a cleaning brush 8 in the initial cleaning stage to clean impurities attached to the surface of the filter screen 102 to expose the scale, the contact speed of the solution and the scale is accelerated, and when the left plate 73 and the right plate 76 are separated in the later stage, the filter screen 102 reversely rotates to continuously clean the surface of the filter screen 102 to complete the complete removal of the scale.
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 considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (3)
1. The scale removing mechanism of the wastewater filtering device is characterized by comprising a left tank body (1) and a right tank body (2), wherein flanges (3) are welded on the opposite port edges of the left tank body (1) and the right tank body (2), support legs (4) are fixed at the bottoms of the left tank body (1) and the right tank body (2), and the left tank body (1) and the right tank body (2) are fixed with the two sides of a ring seat (5) through the flanges (3);
a rotating assembly (6), a telescopic assembly (7), a cleaning brush (8), a feeding power assembly (9) and a filtering assembly (10) are installed in the ring seat (5), the feeding power assembly (9) is connected with the rotating assembly (6), the rotating assembly (6) is connected with the filtering assembly (10), the feeding power assembly (9) is used for driving the rotating assembly (6) and the filtering assembly (10) to rotate, the telescopic assembly (7) is inserted into two sides of the rotating assembly (6), the rotating assembly (6) drives the telescopic assembly (7) to extend or shorten, the cleaning brush (8) is fixed on the telescopic assembly (7), the cleaning brush (8) and the telescopic assembly (7) are extended or shortened synchronously, and the cleaning brush (8) and the ring seat (5) are separated from each other to supply wastewater to flow the filtering assembly (10) in the extending state; in a shortened state, the cleaning brush (8) seals two sides of the ring seat (5) to form a cavity for coating the filtering component (10), the cavity is communicated with the feeding power component (9), a solution for cleaning scale flows into the cavity, and the cleaning brush (8) is matched with the cavity to clean the filtering component (10);
the rotating assembly (6) comprises an upper rotating shaft (61), an upper gear (62), a lower gear (63) and a lower rotating shaft (64), the upper gear (62) and the lower gear (63) are respectively penetrated by the upper rotating shaft (61) and the lower rotating shaft (64), the upper rotating shaft (61) and the lower rotating shaft (64) are positioned at the upper end and the lower end of the ring seat (5), screw holes (611) are machined at two ends of the upper rotating shaft (61), and sliding holes (641) are machined at two ends of the lower rotating shaft (64);
the telescopic assembly (7) comprises a left screw (71), a left sliding rod (72), a left plate (73), a right screw (74), a right sliding rod (75) and a right plate (76), the diameter of the left plate (73) is smaller than that of the left tank body (1), the diameter of the right plate (76) is smaller than that of the right tank body (2), the upper end and the lower end of the left plate (73) are respectively fixed with the left screw (71) and the left sliding rod (72), the upper end and the lower end of the right plate (76) are respectively fixed with the right screw (74) and the right sliding rod (75), ports of the left screw (71) and the right screw (74) are inserted into screw holes (611) on two sides of the upper rotating shaft (61) for internal engagement, the right screw (74) and the right sliding rod (75) are inserted into sliding holes (641) on two sides of the lower rotating shaft (64) for sliding, and a cleaning brush (8) is respectively fixed on the opposite surfaces of the left plate (73) and the right plate (76);
the feeding power assembly (9) comprises a motor (91), a motor shaft (92), a sleeve (93), a feeding pipe (94), a discharging pipe (95), a first bevel gear (96) and a second bevel gear (97), one end of the motor shaft (92) is connected with the motor (91), the other end of the motor shaft (92) penetrates into the sleeve (93), the feeding pipe (94) is connected with the side face of the sleeve (93), one end of the discharging pipe (95) penetrates into the sleeve (93), the other end of the discharging pipe (95) is fixed with the first bevel gear (96), the feeding pipe (94) and the discharging pipe (95) are fixed through a rod body, and the discharging pipe (95) is communicated with the feeding pipe (94);
the first bevel gear (96) is meshed with the second bevel gear (97), and the second bevel gear (97) is penetrated by the upper rotating shaft (61);
the filtering component (10) comprises a gear ring (101) and a filtering net (102), the outer ring of the filtering net (102) is fixed with the gear ring (101), and the upper end and the lower end of the gear ring (101) are respectively meshed with the upper gear (62) and the lower gear (63);
the upper end of the ring seat (5) is provided with a cavity for accommodating the upper gear (62) and the first bevel gear (96), the bottom end of the discharge pipe (95) is communicated with the cavity, and the ring seat (5) below the first bevel gear (96) is also provided with a slotted hole for communicating the filter screen (102) with the cavity.
2. A method for implementing the scale removing mechanism of the wastewater filtering apparatus according to claim 1, comprising the steps of:
s1: the motor (91) is driven to work, the motor (91) drives the motor shaft (92) to synchronously rotate, and the motor shaft (92) simultaneously drives the discharge pipe (95) and the second bevel gear (97) to rotate in the rotating process;
s2: the second bevel gear (97) is meshed with the second bevel gear (97), so that the upper rotating shaft (61) is driven to rotate, the filter screen (102) also rotates in the rotating process of the upper rotating shaft (61), and the left screw (71) and the right screw (74) move oppositely along the screw hole (611);
s3: cleaning brushes (8) on the left plate (73) and the right plate (76) are contacted with the filter screen (102) when moving oppositely, and the left plate (73) and the right plate (76) move to be contacted with two side surfaces of the ring seat (5) for sealing the ring seat (5);
s4: the scale cleaning solution flows into the sleeve (93) through the feeding pipe (94), then flows into the cavity of the ring seat (5) through the discharging pipe (95), flows into the inner part of the ring seat (5) through the slotted hole, is immersed into the filter screen (102), and finishes cleaning after soaking the scale on the filter screen (102) for a period of time;
s5: the motor (91) drives the motor shaft (92) to rotate reversely, the left plate (73) and the right plate (76) move reversely, and the solution in the ring seat (5) is discharged.
3. The method of claim 2, wherein the screw holes (611) formed at both sides of the upper rotating shaft (61) are formed to be symmetrical with respect to the screw hole (611) in S3.
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| CN202110772200.9A CN113384953B (en) | 2021-07-08 | 2021-07-08 | Scale removing mechanism of wastewater filtering device and implementation method thereof |
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| CN202110772200.9A CN113384953B (en) | 2021-07-08 | 2021-07-08 | Scale removing mechanism of wastewater filtering device and implementation method thereof |
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| CN114949983B (en) * | 2022-07-04 | 2022-11-11 | 江苏飞宇医药科技股份有限公司 | Filter roller structure, filter equipment for bio-pharmaceuticals and use method of filter equipment |
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