CN112546691A - Melt filter - Google Patents
Melt filter Download PDFInfo
- Publication number
- CN112546691A CN112546691A CN202011296816.5A CN202011296816A CN112546691A CN 112546691 A CN112546691 A CN 112546691A CN 202011296816 A CN202011296816 A CN 202011296816A CN 112546691 A CN112546691 A CN 112546691A
- Authority
- CN
- China
- Prior art keywords
- filter
- die body
- belt
- filter screen
- sewage draining
- 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
Links
- 238000007599 discharging Methods 0.000 claims abstract description 34
- 238000001914 filtration Methods 0.000 claims abstract description 25
- 239000010865 sewage Substances 0.000 claims abstract description 25
- 239000000155 melt Substances 0.000 claims abstract description 22
- 230000001681 protective effect Effects 0.000 claims abstract description 12
- 239000007921 spray Substances 0.000 claims abstract description 6
- 239000000110 cooling liquid Substances 0.000 claims abstract description 5
- 238000007790 scraping Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 12
- 238000002955 isolation Methods 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000012768 molten material Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007863 gel particle Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004750 melt-blown nonwoven Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 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
- B01D29/01—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
- B01D29/50—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 multiple filtering elements, characterised by their mutual disposition
-
- 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
- B01D29/6407—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes
-
- 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
- B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a melt filter, which relates to the technical field of filtration and comprises a feeding die body and a discharging die body which are arranged in a protective cover, wherein a chute for vertically arranging a filter belt is arranged between opposite surfaces of the feeding die body and the discharging die body; the feeding die body and the discharging die body are provided with cooling liquid channels close to the flow channel holes and the filter belt; a sewage draining outlet is formed in the bottom of the protection box, the filtering surface of the filter belt after being turned faces the sewage draining outlet, a high-pressure steam spray nozzle facing the filter screen and the sewage draining outlet is arranged above the sewage draining outlet, and a brush for scraping the filtering surface is arranged below the sewage draining outlet along the width direction of the filter screen; the fan towards the drain is installed in the slope of guard box bottom. The invention solves the problem that the existing quick-change type melt filter has no function of cleaning a filter screen.
Description
Technical Field
The invention relates to the technical field of filtration, in particular to a melt filter.
Background
The melt filter mainly used moulds plastics and extrudes the trade, in melt-blown non-woven fabric production line, the melt filter mainly installs and carries out coarse filtration between screw extruder and counter, still can be installed and carry out the fine filtration in spouting the die head, in order to get rid of impurity such as damaged mechanical particle, gel particle, carbide in the high polymer melt, thereby avoid impurity to block up the silk hole of spinneret, reduce and dismantle, clear up the frequency of spouting the die head, all played very big effect to the stability that improves product quality, equipment utilization and production. A melt filter for coarse filtration needs filterable impurity more, and the particle diameter of filterable impurity is also bigger, needs often to shut down, takes out the clearance with the filter screen or changes, and the down time is usually longer, has seriously influenced production efficiency. Present quick change formula melt filter, including pressing from both sides the disc type filter between feeding die body and ejection of compact die body, evenly laid several filter screens on the filter, feeding die body and ejection of compact die body are connected respectively to the rotation axis both ends of filter, feeding die body and ejection of compact die body are provided with the runner through-hole, the rotation axis keeps unblocked for the runner through-hole, at least one filter screen keeps the unblocked with the runner through-hole, the periphery of filter is provided with the round ratchet, the piston rod end of the pneumatic cylinder of installing on the die body is provided with the drag hook that offsets with the ratchet, when the filter screen blocks up and reachs the certain degree, the piston rod withdrawal drives ratchet synchronous motion, thereby it rotates to drive the filter, another filter screen on the messenger. The quick-change type melt filter has no filter screen cleaning function, the filter screen can be dismounted for cleaning and replacement only after the filter screen is completely rotated out of the die body, and operators are easily scalded in the dismounting process of the filter screen due to the heat conduction function; in addition, the filter plate is not required to be too large, and the installation quantity of the filter screen is limited.
Disclosure of Invention
The invention aims to provide a melt filter, which can solve the problem that the existing quick-change type melt filter has no function of cleaning a filter screen.
In order to solve the problems, the invention adopts the technical scheme that: the melt filter comprises a feeding die body, a discharging die body and a filter screen, wherein runner holes of the feeding die body and the discharging die body are communicated through the filter screen, a vertical chute is arranged between opposite surfaces of the feeding die body and the discharging die body, a filter belt is arranged in the chute, and the filter belt comprises the filter screen and limiting edges arranged on two sides of the filter screen; the feeding die body and the discharging die body are provided with cooling liquid channels close to the flow channel holes and the filter belt, and the cooling liquid channels at least surround the lower half parts of the flow channel holes; the feeding die body and the discharging die body are arranged in a protective box, the filter belt is arranged in the protective box in the shape of a Mobius belt, at least one group of clamping wheels for clamping the filter belt and a plurality of carrier rollers in sliding fit with the filter belt are arranged in the protective box, and one of each group of clamping wheels is driven by a power machine to rotate; a sewage draining port is formed in the bottom of the protection box, the filtering surface of the overturned filter screen faces the sewage draining port, a high-pressure steam spray nozzle facing the filter screen and the sewage draining port is arranged above the sewage draining port, and a brush for scraping the filtering surface is arranged below the sewage draining port along the width direction of the filter screen; and a fan facing the sewage draining outlet is obliquely arranged at the bottom of the protection box.
In the above technical solution of the melt filter, a more specific technical solution may be: two inserts are symmetrically arranged between the feeding die body and the discharging die body, and the two inserts, the feeding die body and the discharging die body are enclosed to form the sliding chute; and an access door is arranged on one side of the protection box.
Furthermore, a support frame is fixed outside the protection box, an air cylinder is installed on the support frame, and the brush is fixed at the tail end of a piston rod of the air cylinder.
Furthermore, the outer end of the carrier roller is provided with a baffle ring.
Furthermore, the filter belt is provided with a plurality of isolation sealing edges connected with the limiting edges, and the isolation sealing edges divide the filter screen into a plurality of filter units corresponding to the flow passage holes.
Furthermore, the thickness of the isolation sealing edge is the same as that of the limiting edge, and the thickness of the filter screen is smaller than that of the limiting edge.
Further, the filter belt is any one of a ceramic fiber belt, a glass fiber belt and a quartz fiber belt.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. the filter belt with the filter screen positioned between the flow passage holes is arranged on the feeding and discharging die body, the area of the filter screen is large, and the filter screen can be divided into more filter units; the filter belt is clamped and conveyed through the clamping wheel, so that the rapid net changing is realized; the melt at the gap is cooled and solidified to form a seal through the limiting edge of the filter bag and the die body cooling channel, so that the melt can be prevented from overflowing; because the filtering surface of the filter screen is arranged on one side of the feeding die body, filter residues are concentrated on the filtering surface, and the belt body is arranged in the protective box in the shape of a Mobius belt, the filtering surface of the filter screen can be conveniently turned outwards, the filter screen is conveniently cleaned through the cooperation of high-temperature steam and a brush, and then the filter screen is dried by a fan, so that the cleaning effect is good; the filter can clean the filter screen, and the filter screen can be repeatedly recycled without being disassembled and assembled.
2. The insert block between the access door and the die body is arranged, so that a chute of the filter belt can be formed between the die bodies, and the filter belt can be conveniently disassembled, assembled and replaced.
3. The brush is arranged on the piston rod of the cylinder, and is convenient for scraping and brushing the filtering surface of the filtering net in a reciprocating manner.
4. The isolation sealing edge is arranged on the filter belt, so that the sealing reliability of the filter unit between the filter unit and the die body in the melt filtering process is improved.
5. The thickness of the filter screen is smaller than the limiting edge, so that filter residues can be conveniently conveyed out of the die body along with the filter screen.
6. The adopted filter belts have the characteristics of high temperature resistance, high tensile strength and good toughness, and are beneficial to prolonging the service life of the filter belts.
Drawings
FIG. 1 is a schematic structural view of an embodiment of the present melt filter.
Fig. 2 is a cross-sectional view taken along the line a-a in fig. 1.
Fig. 3 is a cross-sectional view taken along the line B-B in fig. 1.
Fig. 4 is a schematic cross-sectional view of a filter belt.
FIG. 5 is a schematic diagram of the structure of the discharge die body and the insert.
Description of the figures: 1. a protection box; 1-1, an access door; 2. a filter belt; 2-1, a limit edge; 2-2, a filter screen; 2-3, isolating sealing edges 3 and clamping wheels; 4. feeding a die body; 4. a feed flow channel hole; 5. discharging the die body; 5-1, discharging runner holes; 6. a cylinder; 6-1, a support frame; 7. a brush; 8. a sewage draining outlet; 9. a fan; 10. a high pressure steam spray head; 11. a carrier roller; 11-1, a baffle ring; 12. an insert; 13. a coolant passage; 14. a chute.
Detailed Description
The invention will be further described in detail with reference to the following examples:
the melt filter shown in fig. 1 and 2 mainly comprises a protection box 1, a filter belt 2, a clamping wheel 3, a feeding die body 4, a discharging die body 5, a cylinder 6, a brush 7, a fan 9 and a high-pressure steam nozzle 10, wherein a feeding runner hole 4-1 and a discharging runner hole 5-1 are respectively formed in the feeding die body 4 and the discharging die body 5, the feeding runner hole 4-1 is an L-shaped through hole, the discharging runner hole 5-1 is a straight-through hole, the discharging runner hole 5-1 and the discharging end of the feeding runner hole 4-1 are coaxially arranged, the feeding die body 4-1 is communicated with an extruder through a flange and a pipeline, and the discharging die body 5 is communicated with a meter through a flange and a pipeline. Two flat plate inserts 12 are symmetrically arranged between the opposite surfaces of the feeding die body 4 and the discharging die body 5, and the two vertically arranged inserts 12 and the opposite surfaces of the feeding die body 4 and the discharging die body 5 are enclosed to form a vertical chute 14. The feeding die body 4 and the discharging die body 5 are arranged in the protective box 1, and the filter belt 2 passes through the chute 14 and is arranged in the protective box 1 in the shape of a Mobius belt. The filter belt 2 is made of ceramic fiber belt, and the filter belt 2 of other embodiments can be made of glass fiber belt or quartz fiber belt; as shown in fig. 2 to 4, the filter belt 2 includes a filter screen 2-2 and a limiting edge 2-1 disposed at both sides of the filter screen 2-2, the filter belt 2 is provided with a plurality of isolation sealing edges 2-3 connected to the limiting edge 2-1, the isolation sealing edges 2-3 divide the filter screen 2-2 into a plurality of filter units corresponding to the flow passage holes, the isolation sealing edges 2-3 have the same thickness as the limiting edge 2-1, the thickness of the filter screen 2-2 is smaller than that of the limiting edge, and the feed flow passage hole 4-1 is communicated with the discharge flow passage hole 5-1 through the filter screen 2-2 of a single filter unit. To avoid overflow of melt from between the die body and the filter belt 2-2, both the inlet die body 4-1 and the outlet die body 5-1 are provided with a coolant channel 13 adjacent to the channel opening and the filter belt 2, the coolant channel 13 surrounding at least the lower half of the channel opening, see fig. 1 and 5. A plurality of groups of clamping wheels 3 for clamping the filter belt 2 and a plurality of carrier rollers 11 in sliding fit with the filter belt 2 are arranged in the protection box 1, and in order to prevent the filter belt 2 from slipping, a baffle ring 11-1 is arranged at the end part of each carrier roller 11; a power machine arranged outside the protection box 1 drives one of the clamping wheels 3 of each group to rotate actively through gear and chain transmission, so that the filter belt 2 moves circularly in the fixed direction to replace different filter units on the filter belt 2. An access door 1-1 is arranged on one side of the protection box 1, so that the filter belt 2 is convenient to overhaul, disassemble, assemble and replace. The filter belt 2 is arranged in the direction departing from the discharging die body 5, in order to clean the blocked filter screen 2-2, a sewage outlet 8 is arranged at the bottom of the protective box 1, the filter surface of the filter screen 2-2 after overturning faces the sewage outlet 8, and two high-pressure steam nozzles 10 facing the filter screen 2-2 and the sewage outlet 8 are arranged above the sewage outlet 8; a brush 7 for scraping a filter surface is arranged below the sewage outlet 8 along the width direction of the filter screen 2-2, the brush 7 is fixed at the tail end of a piston rod of the cylinder 6, the cylinder 6 is arranged on a support frame 6-1, and the support frame 6-1 is fixed on the outer wall of the protection box 1. The fan 9 towards the sewage draining exit 8 is obliquely arranged at the bottom of the protection box 1 and is used for drying the cleaned filtering unit.
When the metering device works, molten materials extruded by an extruder enter a feeding die body 4, then enter a discharging die body 5 through a filter screen 2-2 of a filter unit positioned between a feeding runner hole 4-1 and a discharging runner hole 5-1, and then enter a metering device through the discharging die body 5. After long-time use, impurities and unmelted gel particles in the melt are accumulated on the filtering surface of the filtering net 2-2 to block the filtering net 2-2, when the blockage reaches a certain degree, the power machine is started to drive the clamping wheels 3 to rotate, each group of clamping wheels 3 clamps the filtering belt 2 to circularly move while rotating, the blocked filtering unit is gradually moved out of the position between the passages of the feeding channel hole 4-1 and the discharging channel hole 5-1, a new filtering unit is also moved into the position between the passages, in the replacement process, the passage between the feeding channel hole 4-1 and the discharging channel hole 5-1 is always kept smooth, the flow resistance of the melt is not changed greatly, the pressure fluctuation of the system is small, and the filtering unit can be replaced without stopping. After the replacement of the filter unit for many times, because the filter belt 2 is installed in a Mobius belt shape, the blocked filter surface of the filter unit which moves to the sewage outlet 8 of the protective cover 1 is arranged facing outwards, the high-pressure steam spray head 10 sprays high-pressure steam to the blocked filter unit, the high-pressure steam penetrates through the filter screen 2-2 to soften the blocking object, meanwhile, the piston rod of the air cylinder 6 drives the brush 7 to scrape impurities on the filter surface back and forth, and the impurities on the filter screen are completely sprayed and cleaned by the high-pressure steam and the brush 7, and then the cleaning is stopped; the filter unit is then blown dry by a blower 9, i.e. it can be recycled. The melt filter can rapidly replace the filter unit without stopping, more filter units can be arranged on the filter belt, the melt filter has the function of cleaning the filter screen, the filter screen can be recycled for many times, materials and time are saved, and the production efficiency is improved.
Claims (7)
1. The utility model provides a melt filter, includes feeding die body, ejection of compact die body and filter screen, the feeding die body with the runner hole of ejection of compact die body passes through the filter screen is linked together its characterized in that: a vertical chute is arranged between the opposite surfaces of the feeding die body and the discharging die body, a filter belt is arranged in the chute, and the filter belt comprises a filter screen and limiting edges arranged on two sides of the filter screen; the feeding die body and the discharging die body are provided with cooling liquid channels close to the flow channel holes and the filter belt, and the cooling liquid channels at least surround the lower half parts of the flow channel holes; the feeding die body and the discharging die body are arranged in a protective box, the filter belt is arranged in the protective box in the shape of a Mobius belt, at least one group of clamping wheels for clamping the filter belt and a plurality of carrier rollers in sliding fit with the filter belt are arranged in the protective box, and one of each group of clamping wheels is driven by a power machine to rotate; a sewage draining port is formed in the bottom of the protection box, the filtering surface of the overturned filter screen faces the sewage draining port, a high-pressure steam spray nozzle facing the filter screen and the sewage draining port is arranged above the sewage draining port, and a brush for scraping the filtering surface is arranged below the sewage draining port along the width direction of the filter screen; and a fan facing the sewage draining outlet is obliquely arranged at the bottom of the protection box.
2. The melt filter of claim 1, wherein: two inserts are symmetrically arranged between the feeding die body and the discharging die body, and the two inserts, the feeding die body and the discharging die body are enclosed to form the sliding chute; and an access door is arranged on one side of the protection box.
3. The melt filter of claim 2, wherein: the brush is fixed in the tail end of a piston rod of the cylinder.
4. The melt filter of claim 3, wherein: and the outer end of the carrier roller is provided with a baffle ring.
5. A molten material filter according to any one of claims 1 to 4 wherein: the filter belt is provided with a plurality of isolation sealing edges connected with the limiting edges, and the isolation sealing edges divide the filter screen into a plurality of filter units corresponding to the flow passage holes.
6. The melt filter of claim 5, wherein: the thickness of the isolation sealing edge is the same as that of the limiting edge, and the thickness of the filter screen is smaller than that of the limiting edge.
7. The melt filter of claim 6, wherein: the filter belt is any one of a ceramic fiber belt, a glass fiber belt and a quartz fiber belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011296816.5A CN112546691A (en) | 2020-11-18 | 2020-11-18 | Melt filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011296816.5A CN112546691A (en) | 2020-11-18 | 2020-11-18 | Melt filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112546691A true CN112546691A (en) | 2021-03-26 |
Family
ID=75043906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011296816.5A Pending CN112546691A (en) | 2020-11-18 | 2020-11-18 | Melt filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112546691A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413703A (en) * | 2021-07-20 | 2021-09-21 | 中建三局第一建设安装有限公司 | Heating ventilation air conditioner filter equipment of convenient clearance |
| CN113440933A (en) * | 2021-05-13 | 2021-09-28 | 桐乡市瑞炬纺织品有限公司 | Cleaning equipment is retrieved to batting of textile production usefulness |
| CN115414717A (en) * | 2022-10-09 | 2022-12-02 | 南京工程学院 | Inside automatic filtration structure of motor and motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772461A (en) * | 2005-05-27 | 2006-05-17 | 梁斌 | Melt rotating fast filter for extruder |
| CN104339621A (en) * | 2013-07-28 | 2015-02-11 | 上海楚堰实业有限公司 | Extruder filter system and application thereof |
| WO2017077186A1 (en) * | 2015-11-03 | 2017-05-11 | Outotec (Finland) Oy | Vacuum box, belt filter, methods for servicing a vacuum belt filter, method for liquid-solid separation of a slurry, and filter element |
| CN107050957A (en) * | 2017-06-26 | 2017-08-18 | 江苏慧博灌排设备有限公司 | A kind of sewage filter treatment system |
| CN111578406A (en) * | 2020-05-26 | 2020-08-25 | 江西省科学院 | Environment-friendly air purification device with cleaning structure |
-
2020
- 2020-11-18 CN CN202011296816.5A patent/CN112546691A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772461A (en) * | 2005-05-27 | 2006-05-17 | 梁斌 | Melt rotating fast filter for extruder |
| CN104339621A (en) * | 2013-07-28 | 2015-02-11 | 上海楚堰实业有限公司 | Extruder filter system and application thereof |
| WO2017077186A1 (en) * | 2015-11-03 | 2017-05-11 | Outotec (Finland) Oy | Vacuum box, belt filter, methods for servicing a vacuum belt filter, method for liquid-solid separation of a slurry, and filter element |
| CN107050957A (en) * | 2017-06-26 | 2017-08-18 | 江苏慧博灌排设备有限公司 | A kind of sewage filter treatment system |
| CN111578406A (en) * | 2020-05-26 | 2020-08-25 | 江西省科学院 | Environment-friendly air purification device with cleaning structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113440933A (en) * | 2021-05-13 | 2021-09-28 | 桐乡市瑞炬纺织品有限公司 | Cleaning equipment is retrieved to batting of textile production usefulness |
| CN113413703A (en) * | 2021-07-20 | 2021-09-21 | 中建三局第一建设安装有限公司 | Heating ventilation air conditioner filter equipment of convenient clearance |
| CN115414717A (en) * | 2022-10-09 | 2022-12-02 | 南京工程学院 | Inside automatic filtration structure of motor and motor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20221018 |