CN111054112A - Full-automatic bag filter who arranges dry sediment - Google Patents
Full-automatic bag filter who arranges dry sediment Download PDFInfo
- Publication number
- CN111054112A CN111054112A CN201911396143.8A CN201911396143A CN111054112A CN 111054112 A CN111054112 A CN 111054112A CN 201911396143 A CN201911396143 A CN 201911396143A CN 111054112 A CN111054112 A CN 111054112A
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- China
- Prior art keywords
- filter
- bag
- discharge
- basket
- collection tank
- 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.)
- Pending
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- 239000013049 sediment Substances 0.000 title claims description 8
- 239000002893 slag Substances 0.000 claims abstract description 45
- 239000007788 liquid Substances 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000011001 backwashing Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 10
- 239000003818 cinder Substances 0.000 claims description 7
- 238000011010 flushing procedure Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims 2
- 239000000463 material Substances 0.000 abstract description 20
- 238000007599 discharging Methods 0.000 abstract description 17
- 238000004140 cleaning Methods 0.000 abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 230000007547 defect Effects 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Classifications
-
- 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
- B01D29/11—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 bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
-
- 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
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
-
- 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
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/92—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging filtrate
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The embodiment of the invention discloses a full-automatic dry slag discharging bag filter, which comprises a filter shell, a filter basket and a filter bag, wherein the filter basket is arranged in the filter shell, the filter bag is sleeved outside the filter basket, an upper end socket is arranged at the top end of the filter shell, a cavity is arranged in the upper end socket and is communicated with a discharge hole of the filter basket and the filter shell, and a back washing mechanism communicated with the filter basket is arranged on the upper end socket; the bottom end of the filter shell is provided with a drain outlet which is connected with a filter residue collecting tank, a dry residue discharging mechanism is arranged in the filter residue collecting tank, a discharge side of the filter residue collecting tank is provided with a residue discharging port and a liquid return outlet, and the filter bag is automatically cleaned through a back washing mechanism, so that the defects of low cleaning efficiency, easiness in damage of the filter bag, reduction of the service life of the filter and influence on the productivity of the filter in manual cleaning of the filter bag are overcome; and the material residues shaken off the filter bag are collected, squeezed and discharged, so that the waste of water resources is avoided, and meanwhile, the collection of the material residues is facilitated.
Description
Technical Field
The embodiment of the invention relates to the technical field of pipeline filtration, in particular to a full-automatic bag filter for discharging dry slag.
Background
Current bag filter generally adopts the upper end to get into the liquid inside the filter bag, and the filter bag is equipped with outward and strains the basket support, and the clear liquid flows to filter lower extreme export by the filter bag outward, and the filter residue is held back inside the filter bag, can hold back a lot of solid filter residues in using a period after the filter bag, consequently, need the manual work to open the filter at every period, and need unscrew tens of bolts when opening the filter, and not only operating efficiency is low, and workman intensity of labour degree. After the filter is opened, the filter bag needs to be lifted manually for cleaning or replacement, and then the filter bag is put back into the filter. The existing bag filter not only needs regular and regular manual maintenance, but also is troublesome and labor-consuming in the process of dismantling and maintaining, and the existing bag filter also has the following disadvantages in the use process: .
1. The filter bag needs to be manually cleaned, so that the consumption of human resources is increased;
2. the damage of the filter bag is easily caused by manual cleaning, and the damage probability of the filter bag is increased;
3. the filter is frequently disassembled, so that the service life of the filter is reduced and the productivity is influenced;
4. the moisture content of the material slag in the filter bag is large, so that the material slag is not convenient to collect, the waste of water resources can be caused, and the production cost is increased.
Disclosure of Invention
Therefore, the embodiment of the invention provides a full-automatic dry slag discharging bag filter, which aims to solve the problems of increased production cost and reduced productivity caused by frequent maintenance of the bag filter in the prior art.
In order to achieve the above purpose, the embodiment of the present invention discloses the following technical solutions:
a bag filter for full-automatic dry slag discharge comprises a filter shell, a filter basket and a filter bag, wherein the filter basket is installed in the filter shell, the filter bag is sleeved outside the filter basket, an upper end socket is installed at the top end of the filter shell, a cavity communicated with the filter basket and a discharge hole of the filter shell is arranged in the upper end socket, and a back washing mechanism communicated with the filter basket is installed on the upper end socket; the bottom of filter housing installs the drain, the drain is connected with the filter residue collection tank, install the dry sediment mechanism of row in the filter residue collection tank, the discharge side of filter residue collection tank is equipped with row's cinder notch and liquid and returns the export, and installs the cover in the filter residue collection tank the filter screen that the export was returned to liquid.
Further, the sediment mechanism of draining includes that coaxial rotation installs rotation axis in the filter residue collection tank, install reamer on the rotation axis, and install on the filter residue collection tank and with the drive disk assembly that the rotation axis transmission is connected, the thin end of reamer is located the feed side of filter residue collection tank.
Further, install axial sliding in the slag discharging hole and install the activity bottom plate of slagging tap, the activity is slagging tap the bottom plate axial sliding install on the rotation axis, the rotation axis runs through the activity slag discharging plate one end rotate install with the baffle that the slag discharging hole interval set up, baffle fixed mounting be in on the filter residue collection tank, the baffle with the activity is slagging tap and installs the spring between the bottom plate.
Furthermore, the back flush mechanism is including installing pressure transmitter on the upper cover, installing a plurality of washing nozzle in the upper cover cavity to and connect a plurality of washing nozzle's pipeline, install on the upper cover and connect the back flush mouth of pipeline.
Further, the filter shell feeding hole is located below the filter shell discharging hole.
Furthermore, a partition board is installed at the top end of the filter shell, a filter basket interface for installing the filter basket is arranged on the partition board, a discharge hole connected with a discharge port of the filter shell is further formed in the partition board, and the filter basket interface is communicated with the discharge hole through the cavity.
Further, the upper end enclosure is provided with an exhaust port communicated with the cavity.
Further, install discharge valve on the gas vent, install liquid on the liquid return outlet and return the valve, install the feed valve on the feed inlet of filter casing, the bleeder valve is installed to the discharge gate of filter.
The embodiment of the invention has the following advantages:
according to the invention, the filter bag is automatically cleaned through the back washing mechanism, so that the defects of low cleaning efficiency, easiness in damaging the filter bag, reduction in service life of the filter and influence on productivity in manual cleaning of the filter bag are avoided; and the material slag shaken off the filter bag is collected, squeezed and discharged, so that the waste of water resources caused by the direct discharge of the material slag rich in water in the filter bag is avoided, and the defects of large volume and inconvenient collection and storage of the material slag are overcome.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a schematic overall structure diagram in an embodiment of the present invention;
fig. 2 is a schematic view of the capping head knot in the embodiment of the present invention.
In the figure:
1-a filter housing; 2-a feed valve; 3-a feed inlet; 4-an exhaust port; 5-an exhaust valve; 6, filtering the bag; 7-filtering basket; 8-a discharge hole; 9-a discharge valve; 10-a pressure sensor; 11-back flushing; 12-a recoil valve; 13-a sewage draining outlet; 14-a filter residue collection tank; 15-a drive member; 16-a rotation axis; 17-a reamer; 18-a filter screen; 19-liquid return outlet; 20-a liquid return valve; 21-movable slag discharging bottom plate; 22-a slag discharge port; 23-a separator; 24-a filter basket interface; 25-a discharge hole; 26-upper end enclosure; 27-rinsing the nozzle; 28-pipeline.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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.
As shown in fig. 1 and 2, the invention discloses a bag filter for full-automatic dry slag removal, which generally comprises a filter housing 1 provided with a feed port 3 and a discharge port 8, a filter basket 7 arranged in the filter housing 1, and a filter bag 6 sleeved outside the filter basket 7, wherein the feed port 3 is positioned below the discharge port 8, an upper seal head 26 is arranged at the top end of the filter housing 1, a cavity communicated with the filter basket 7 and the discharge port 8 of the filter housing 1 is arranged in the upper seal head 26, and the upper seal head 26 is provided with a back washing mechanism communicated with the filter basket 7; drain 13 is installed to the bottom of filter, drain 13 is connected with filter residue holding tank 14, install the dry sediment mechanism of row in the filter residue holding tank 14, the discharge side of filter residue holding tank 14 is equipped with row's cinder notch 22 and liquid and returns export 19, and installs the cover in the filter residue holding tank 14 liquid returns the filter screen 18 of export 19.
Specifically, turbid liquid doped with impurities is injected into the filter shell 1 through the feeding hole 3, the turbid liquid in the filter shell 1 penetrates into the filter basket 7 through the filter bag 6, in the process, the impurities with large volume are intercepted outside the filter bag 6, the cleaning liquid filtered by the filter bag 6 enters into the filter basket 7, along with the rising of the liquid level in the filter shell 1 and the increase of the water pressure, the cleaning liquid in the filter basket 7 flows into a cavity in the top upper end enclosure 26 through the filter basket 7 and flows to the discharging hole 8 through the cavity of the upper end enclosure 26, when the cleaning liquid flows out from the discharging hole 8, the pressure in the cavity of the upper end enclosure 26 is reduced, and therefore the cleaning liquid in the filter basket 7 is promoted to be discharged sequentially through the cavity of the upper end enclosure 26 and the discharging hole 8.
When the impurity on the surface of the filter bag 6 is attached to a large amount, which causes the pressure of turbid liquid in the filter cavity to increase, the feed inlet 3 is closed, and the back washing mechanism at the top sprays gas or liquid washing medium to the inner wall of the filter bag 6, so that the filter bag 6 shakes, and the material residues attached to the surface of the filter bag 6 are shaken off. After backwashing is carried out for a period of time, the drain outlet 13 is opened, turbid liquid carrying shaken-off material residues flows into the residue collection tank 14 through the drain outlet 13, most of water adsorbed in the material residues is squeezed out under the extrusion action of the residue discharge mechanism and the interception action of the filter screen 18, the squeezed water and the turbid liquid are discharged from the liquid return outlet 19 after passing through the filter screen 18, and the material residues squeezed to be blocky are discharged from the residue discharge outlet 22.
According to the invention, the filter bag 6 is automatically cleaned, so that the defects of low cleaning efficiency, easiness in damaging the filter bag 6, reduction in service life of the filter and influence on productivity in the process of manually cleaning the filter bag 6 are avoided; and the material slag shaken off the filter bag 6 is collected, squeezed and discharged, so that the waste of water resources caused by the direct discharge of the material slag rich in water in the filter bag 6 and the defects of large volume of the material slag and inconvenient collection and storage are avoided.
Wherein, it installs to drain dry sediment mechanism includes coaxial rotation axis 16 in the filter residue collection tank 14, install reamer 17 on the rotation axis 16, and install on the filter residue collection tank 14 and with the driving part 15 that the transmission of rotation axis 16 is connected, reamer 17's thin end is located the feed side of filter residue collection tank 14. Install endwise slip in the row's cinder notch 22 and install activity bottom plate 21 of slagging tap, the activity is slagging tap bottom plate 21 endwise slip installs on the rotation axis 16, rotation axis 16 runs through the activity is slagging tap the one end of board rotate install with the baffle that row's cinder notch 22 interval set up, baffle fixed mounting is in on the filter residue collection tank 14, the baffle with the activity is slagging tap and install the spring between the bottom plate 21.
Specifically, the material slag and the turbid liquid entering the filter residue collection tank 14 through the sewage discharge outlet 13 continuously move towards the direction of the slag discharge outlet 22 through the thin end of the reamer 17 under the thrust action of the rotating reamer 17, and the gap between the reamer 17 and the outer wall and the inner wall of the filter residue collection tank 14 is gradually reduced from the thin end to the other end, so that the water and the turbid liquid contained in the material slag in the gap are continuously extruded out, the extruded water and the turbid liquid are discharged from the liquid return outlet 19 at the bottom of the filter residue collection tank 14 under the action of gravity, the material slag is extruded from the tail end of the reamer 17, preliminarily molded and dried, the blocking action lower end of the movable slag discharge bottom plate 21 at the slag discharge outlet 22 is continuously gathered at the slag discharge outlet 22, and the material slag is further compacted, molded and dried under the extrusion force of the material slag subsequently entering the slag discharge outlet 22. And compacting the formed slag blocks, overcoming the resistance of a spring to push the movable slag discharging bottom plate 21 away under the thrust action of subsequent slag, so that the compacted slag at the slag discharging port 22 is squeezed and discharged from the slag discharging port 22 continuously until no compacted slag exists in the filter residue collecting tank 14, resetting the movable slag discharging bottom plate 21 under the thrust action of the spring, further compacting and forming the slag in the filter residue collecting tank 14, or repeating the steps when waiting for the back flushing of the filter bag 6 next time.
Wherein, back flush mechanism is including installing pressure transmitter 10 on the upper head 26, installing a plurality of in the 26 cavities of upper head washes nozzle 27, and connects a plurality of wash nozzle 27's pipeline 28, install on the upper head 26 and connect the back flush mouth 11 of pipeline 28, the flushing medium is injected into by 11 high pressure in the back flush mouth in the pipeline 28 to by each wash nozzle 27 spout to filter bag 6 makes filter bag 6 shake, reaches the purpose of shaking off 6 outer wall material loading dregs of filter bag.
In addition, a partition plate 23 is installed at the top end of the filter shell 1, a filter basket interface 24 for installing the filter basket 7 is arranged on the partition plate 23, a discharge hole 25 for connecting the discharge hole 8 is further arranged on the partition plate 23, the filter basket interface 24 and the discharge hole 25 are communicated through the cavity, the arranged partition plate 23 is used for placing turbid liquid in the filter shell 1 to overflow, and meanwhile, the filter basket 7 and the filter bag 6 are convenient to install.
In addition, the upper end enclosure 26 is provided with an exhaust port 44 communicated with the cavity, when turbid liquid is injected, gas entering the filter shell 1 together with the turbid liquid floats above the liquid level, enters the filter bag 6 from the filter hole of the filter bag 6 at the top end under the action of water pressure, sequentially rises to the cavity and the exhaust port 44, and is exhausted from the exhaust port 44.
Wherein, install feed valve 2 on the feed inlet 3, bleeder valve 9 is installed to discharge gate 8, install discharge valve 5 on the gas vent 44, after feed valve 2 opened, discharge valve 5 opened when exhausting, closed after the exhaust is accomplished, simultaneously, bleeder valve 9 opened, liquid returns to install liquid on the export 19 and returns valve 20, and liquid returns valve 20 and opens when the action of drainage slag mechanism, is in the closure state during the rest, prevents that the liquid that the muddy liquid passes through on the filter residue collection tank 14 from returning the export 19 and flowing.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (8)
1. A bag filter for full-automatic dry slag discharge comprises a filter shell (1), a filter basket (7) arranged in the filter shell (1), and a filter bag (6) sleeved outside the filter basket (7), and is characterized in that an upper end enclosure (26) is arranged at the top end of the filter shell (1), a cavity communicated with the filter basket (7) and a discharge hole of the filter shell (1) is arranged in the upper end enclosure (26), and a back washing mechanism communicated with the filter basket (7) is arranged on the upper end enclosure (26); drain (13) are installed to the bottom of filter housing (1), drain (13) are connected with filter residue collection tank (14), install in filter residue collection tank (14) and arrange dry sediment mechanism, the discharge side of filter residue collection tank (14) is equipped with row's cinder notch (22) and liquid and returns export (19), and installs the cover in filter residue collection tank (14) filter screen (18) that liquid returned export (19).
2. The bag filter of claim 1, wherein the dry residue discharge mechanism comprises a rotating shaft (16) coaxially rotatably mounted in the residue collection tank (14), a reamer (17) mounted on the rotating shaft (16), and a driving member (15) mounted on the residue collection tank (14) and in transmission connection with the rotating shaft (16), wherein the thin end of the reamer (17) is located on the feeding side of the residue collection tank (14).
3. The bag filter of full-automatic row's dry sediment of claim 2, characterized in that, install axial slidable in row cinder notch (22) and install activity bottom plate (21) of slagging tap, activity bottom plate (21) axial slidable install on rotation axis (16), rotation axis (16) run through the one end of activity slag tapping board rotate install with arrange the baffle that cinder notch (22) interval set up, baffle fixed mounting be in on filter residue collection tank (14), the baffle with install the spring between activity slag tapping bottom plate (21).
4. The bag filter of claim 1, wherein the back flushing mechanism comprises a pressure transmitter (10) mounted on the upper head (26), a plurality of flushing nozzles (27) mounted in a cavity of the upper head (26), and a pipeline (28) connecting the plurality of flushing nozzles (27), and the upper head (26) is provided with a back flushing port (11) connected with the pipeline (28).
5. A fully automatic dry slag bag filter according to claim 1, wherein the filter housing (1) feed opening is located below the filter housing (1) discharge opening.
6. The bag filter for the full-automatic dry slag discharge of the claim 1, wherein the top end of the filter housing (1) is provided with a partition plate (23), the partition plate (23) is provided with a filter basket interface (24) for mounting the filter basket (7), the partition plate (23) is further provided with a discharge hole (25) for connecting the discharge hole of the filter housing (1), and the filter basket interface (24) and the discharge hole (25) are communicated through the cavity.
7. The bag filter for full-automatic dry slag discharge according to claim 1, wherein the upper head (26) is provided with an exhaust port (4) communicated with the cavity.
8. The bag filter for full automatic dry slag discharge according to claim 1, wherein the exhaust port (4) is provided with an exhaust valve (5), the liquid return outlet (19) is provided with a liquid return valve (20), the feed port of the filter housing (1) is provided with a feed valve (2), and the discharge port of the filter (1) is provided with a discharge valve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911396143.8A CN111054112A (en) | 2019-12-30 | 2019-12-30 | Full-automatic bag filter who arranges dry sediment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911396143.8A CN111054112A (en) | 2019-12-30 | 2019-12-30 | Full-automatic bag filter who arranges dry sediment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111054112A true CN111054112A (en) | 2020-04-24 |
Family
ID=70304660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911396143.8A Pending CN111054112A (en) | 2019-12-30 | 2019-12-30 | Full-automatic bag filter who arranges dry sediment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111054112A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114470923A (en) * | 2020-10-27 | 2022-05-13 | 中核建中核燃料元件有限公司 | Cleanable bag filter for liquid |
| CN114931799A (en) * | 2022-04-26 | 2022-08-23 | 中国轻工业武汉设计工程有限责任公司 | Full-automatic filter of self-loopa suspension |
-
2019
- 2019-12-30 CN CN201911396143.8A patent/CN111054112A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114470923A (en) * | 2020-10-27 | 2022-05-13 | 中核建中核燃料元件有限公司 | Cleanable bag filter for liquid |
| CN114931799A (en) * | 2022-04-26 | 2022-08-23 | 中国轻工业武汉设计工程有限责任公司 | Full-automatic filter of self-loopa suspension |
| CN114931799B (en) * | 2022-04-26 | 2024-04-16 | 中国轻工业武汉设计工程有限责任公司 | Full-automatic filter for self-circulation suspension |
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