CN109228241A - The novel interior edge patch drip irrigation zone dedicated extruder of one kind and pelletizer - Google Patents
The novel interior edge patch drip irrigation zone dedicated extruder of one kind and pelletizer Download PDFInfo
- Publication number
- CN109228241A CN109228241A CN201811117343.0A CN201811117343A CN109228241A CN 109228241 A CN109228241 A CN 109228241A CN 201811117343 A CN201811117343 A CN 201811117343A CN 109228241 A CN109228241 A CN 109228241A
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- CN
- China
- Prior art keywords
- drip irrigation
- interior edge
- extruder
- irrigation zone
- edge patch
- 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
- 238000003973 irrigation Methods 0.000 title claims abstract description 31
- 230000002262 irrigation Effects 0.000 title claims abstract description 30
- 238000001125 extrusion Methods 0.000 claims abstract description 26
- 230000009467 reduction Effects 0.000 claims abstract description 13
- 239000000155 melt Substances 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 21
- 239000004615 ingredient Substances 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 25
- 239000000463 material Substances 0.000 abstract description 19
- 239000004033 plastic Substances 0.000 abstract description 14
- 229920003023 plastic Polymers 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 11
- 238000001035 drying Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 description 19
- 230000000694 effects Effects 0.000 description 7
- 238000002156 mixing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000003335 Production assurance Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- -1 is kneaded Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000009818 secondary granulation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a kind of novel interior edge patch drip irrigation zone dedicated extruder, including motor, reduction gearbox, screw barrel, the long-acting filter device of stem, Melt Pump, net-changing device, extrusion dies；It is characterized in that being connected with reduction gearbox on the motor, reduction gearbox output end is connected with screw barrel, and feed inlet is equipped on screw barrel；The other end of the screw barrel installs the long-acting filter device of stem；The long-acting filter device of stem is connected by connecting passage with Melt Pump；The other end of the Melt Pump is connected by connecting passage with net-changing device；The other end of the net-changing device is connected with extrusion die；The extrusion die is divided into extruder die head and drip irrigation zone die head；Pressure sensor is installed on the connecting passage, to monitor pressure in connecting passage；The extruder can not only produce interior edge patch drip irrigation zone product, but also can process interior edge patch Special drip tape material, in production can be directly by second level, and extrusion in the extruder is added in the reclaimings plastics such as three-level.It is modified without being granulated filtering again.In process, the link for needing heat drying in reworked material production is eliminated, manufacturing cost is greatly reduced.
Description
Technical field
The present invention relates to plastic extruder manufacturing fields, and in particular to novel interior edge patch drip irrigation zone dedicated extruder and makes
Grain machine.
Background technique
China widelys popularize in agriculture field and using drip irrigation technique, scientic planting at present.It is dripping interior edge patch drip irrigation zone
Filling field application performance is best, but we are national or even global at present, is all to process interior edge patch using completely new material
Drip irrigation zone.The rising for eventually leading to manufacturing cost directly influences the planting cost that the common people plant ground.
Extruder used in the interior edge patch drip-irrigation belt production line of home and abroad is all single screw extrusion machine, traditional single spiral shell
Bar extruder is all insufficient to the melting effect of raw material and dispersed effect.It is mixed in machine to influence a variety of raw material
Plasticizing effect is closed, the product quality performance produced is declined, in order to promote the capability and performance of product, current all users are adopted
It is processed with completely new material.
In order to solve drawbacks described above, recycled plastic, secondary granulation are used on the market at present, some technological means such as filtering are made
It at plastic grain, is added in single screw extrusion machine again, processes interior edge drip irrigation zone product to reduce manufacturing cost.
Current technology can only be added to 50% regenerative raw materials, and (current extruder technology regenerative raw materials can only be regenerated with level-one
Raw material.Level-one reworked material is expected close to completely new)；The manufacturing cost of above two production technology is high, is finally planting to peasant
It plants and invisible in cost brings cost increase.
Summary of the invention
The purpose of the present invention is to provide a kind of novel interior edge patch drip irrigation zone dedicated extruder and pelletizer, the extruders
Not only interior edge patch drip irrigation zone product can have been produced, but also interior edge patch Special drip tape material can be processed, it in production can be direct
By second level, extrusion in the extruder is added in the reclaimings plastics such as three-level.It is modified without being granulated filtering again.It is processing
In the process, host can use included vacuum pump, and the moisture inside regenerated plastics particle is extracted out, eliminate in reworked material production
The link for needing heat drying, greatly reduces manufacturing cost.
The novel interior edge patch drip irrigation zone dedicated extruder of one kind and pelletizer, including motor, reduction gearbox, screw barrel are first
Minister imitates filter device, Melt Pump, net-changing device, extrusion die；It is characterized in that being connected with reduction gearbox, reduction gearbox on the motor
Output end is connected with screw barrel, and feed inlet is equipped on screw barrel；The other end installation stem of the screw barrel is long
Imitate filter device；The long-acting filter device of stem is connected by connecting passage with Melt Pump；The other end of the Melt Pump is logical
Connecting passage is crossed to be connected with net-changing device；The other end of the net-changing device is connected with extrusion die；The extrusion die is divided into extrusion
Machine die head and drip irrigation zone die head both can be used as pelletizer use, can also be used as extruder makes by replacing extrusion die
With；Pressure sensor is installed on the connecting passage, to monitor pressure in connecting passage.
Screw barrel: the screw barrel includes screw rod, machine barrel；The machine barrel is equipped at least one spout, described
Twin-screw is installed, and twin-screw is cocurrent and parallel placement in machine barrel；Machine barrel is divided into A sections, B sections, C sections, D sections, E sections and F sections,
Middle A section is equipped with feed inlet, and auxiliary spout is equipped in B section, and vaccum exhaust outlet is equipped in C section, is connected on vaccum exhaust outlet
It is connected to vacuum pump, auxiliary spout is equipped in D section.
The long-acting filter device of stem: the long-acting filter device of stem includes sleeve, filter cylinder, mesh sheet, installation lid, bolt；
The sleeve is equipped with feed inlet, is equipped with discharge port to side in feed inlet；Circular hole is uniformly equipped on the filter cylinder, in filter cylinder
The side wall of bung hole offers discharge port, and the outer wall of filter cylinder is enclosed with one layer of mesh sheet, forms filter core；The installation lid side is equipped with
Material mouth and anti-spin slot, top is equipped with apical pore, and lateral wall is closing, and installation lid is fixed together with filter cylinder cooperation；The filter
Core and installation lid are fitted in sleeve, and threaded hole is equipped at the top of sleeve；The bolt is mounted on the spiral shell at the top of sleeve
In pit, during tightening, bolt is withstood in the head space bolt, is formed the inner wall for installing cover outer wall and sleeve and is squeezed
Power is gradually increased, and is allowed to install compact.
Melt Pump: the Melt Pump is driven by retarder by 32 high-precision permanent-magnet servo motors.
It preferably, include a major ingredient mouth and at least one auxiliary feed ports on the feed inlet.
Preferably, the charging motor of the feed inlet uses servo motor, accurately controls inlet amount.
Preferably, the screw barrel forms for piecewise combination.
Preferably, installation is threadedly engaged on the bolt and sleeve.
Preferably, it is overlapped again together after the discharge port of the side wall of the filter cylinder bung hole and the installation of the discharge port on sleeve.
Preferably, the drawing-in device is the quantitative drawing-in device that unit is gram-grade.
The beneficial effects of the present invention are the extruders can not only produce interior edge patch drip irrigation zone product, but also can process interior
Patch Special drip tape material is inlayed, the manufacturer of currently manufactured interior edge patch drip irrigation zone is supplied.
First, the interior edge patch drip irrigation zone extruder of current home and abroad can be solved, it is plasticized, mixing and dispersion effect
Insufficient problem, and a variety of raw material can be made adequately to be plasticized, mixing and dispersion effect.It ensure that the production produced
Quality is stablized.
Second, in production can be directly by second level, extrusion in the extruder is added in the reclaimings plastics such as three-level
(its regenerated plastics additive amount can reach 100%).It is modified without being granulated filtering again.In process, host can use
Included vacuum pump, the moisture inside regenerated plastics particle is extracted out, eliminates the link that heat drying is needed in reworked material production.Greatly
Manufacturing cost is reduced greatly.
In conjunction with above-mentioned two o'clock, to reduce planting cost to peasant.From the perspective of environmental improvement, resource can be returned
It receives and utilizes, reduce pollution of the partly plastic to environment.
Detailed description of the invention
Fig. 1 is production line structural schematic diagram of the invention.
Fig. 2 is screw barrel structural schematic diagram of the invention.
Fig. 3 is tube-in-tube structure schematic diagram of the invention.
Fig. 4 is the internal explosion structural schematic diagram of the long-acting filter device of stem of the invention.
Fig. 5 is inside scheme of installation of the invention.
Fig. 6 is operational process schematic diagram of the invention.
In figure, motor 1, reduction gearbox 2, screw barrel 3, screw rod 3-1, machine barrel 3-2, A section, B sections, C sections, D sections, E sections, F sections,
Assist spout 3-3, the long-acting filter device 4 of stem, sleeve 4-1, filter cylinder 4-2, mesh sheet 4-3, installation lid 4-4, bolt 4-5, circle
Hole 4-6, anti-spin slot 4-7, apical pore 4-8, Melt Pump 5, net-changing device 6, extrusion die 7, feed inlet 8, discharge port 9, servo motor 10.
Specific embodiment
As shown, a kind of novel interior edge patch drip irrigation zone dedicated extruder and pelletizer, including motor 1, reduction gearbox 2,
Screw barrel 3, the long-acting filter device 4 of stem, Melt Pump 5, net-changing device 6, extrusion die 7；It is characterized in that connecting on the motor 1
It is connected to reduction gearbox 2,2 output end of reduction gearbox is connected with screw barrel 3, and feed inlet 8 is equipped on screw barrel 3；The machine barrel
The other end of screw rod 3 installs the long-acting filter device 4 of stem；The long-acting filter device 4 of stem passes through connecting passage and Melt Pump 5
It is connected；The other end of the Melt Pump 5 is connected by connecting passage with net-changing device 6；The other end and extrusion die of the net-changing device 6
First 7 are connected；The extrusion die 7, which divides, both can be used as extruder die head and drip irrigation zone die head by replacing extrusion die 7
Pelletizer uses, and can also be used as extruder use；Pressure sensor is installed on the connecting passage, to monitor connection flow
Pressure in road.
Screw barrel 3: the screw barrel 3 includes screw rod 3-1, machine barrel 3-2；The machine barrel 3-2 is equipped at least one
Spout is equipped with twin-screw 3-1 in the machine barrel 3-2, and twin-screw 3-1 is cocurrent and parallel placement；Machine barrel 3-2 point is A sections,
B sections, C sections, D sections, E sections and F sections, wherein A section is equipped with feed inlet 8, and auxiliary spout 3-3 is equipped in B section, is set on C sections
There is vaccum exhaust outlet, be connected with vacuum pump on vaccum exhaust outlet, auxiliary spout 3-3, and B sections, C sections, D sections are equipped in D section
Between can be interchanged, by the way that different auxiliary material spout is arranged, plurality of raw materials is allowed to carry out mixing dispersion, can also be not
With mixing degree under add specified auxiliary material, be not traditional disposable full mixing, for example, A sections of addition major ingredients and other
Material waits material when reaching B sections in A sections to mix, then other auxiliary materials are added in B sections, allows the present invention direct
By second level, the reclaimings plastics such as three-level are produced, in different times section, are added in extruder, the regeneration to inferior grade
Plastics carry out recovery of performance.
The long-acting filter device 4 of stem: the long-acting filter device 4 of stem includes sleeve 4-1, filter cylinder 4-2, mesh sheet 4-3, peace
Capping 4-4, bolt 4-5；The sleeve 4-1 is equipped with feed inlet 8, is equipped with discharge port 9 to side in feed inlet 8；The filter cylinder
4-2 is upper to be uniformly equipped with circular hole 4-6, offers discharge port 9 in the side wall of filter cylinder 4-2 bung hole, the outer wall of filter cylinder 4-2 is enclosed with one
Layer mesh sheet 4-3, forms filter core；The installation lid side 4-4 is equipped with discharge port 9 and anti-spin slot 4-7, and top is equipped with apical pore 4-8, and
Lateral wall is closing, and installation lid 4-4 and filter cylinder 4-2 cooperation is fixed together；The filter core is fitted to installation lid 4-4
In sleeve 4-1, and threaded hole is equipped at the top of sleeve 4-1；The bolt 4-5 is mounted in the threaded hole at the top of sleeve 4-1, spiral shell
During tightening, bolt 4-5 is withstood in the head space bolt 4-5, forms installation lid 4-4 outer wall and the inner wall of sleeve 4-1
Extruding force is gradually increased, and is allowed to install compact, when mixture enters from sleeve 4-1 feed inlet 8 to be pierced by from discharge port 9, is passed through
Mixture both can be effectively filtered by barrel-shaped filter net, while can also be prevented extruding force from crossing senior general and be netted extrusion deformation
(cylindrical body can be evenly dispersed by power).
Melt Pump 5: the Melt Pump 5 is driven by retarder by 32 high-precision permanent-magnet servo motors 10；This device is
One melt flow pump and rotating device and 32 high-precision permanent-magnet servo motors 10 form.The Melt Pump 5, host was pushed
After coming, after clean raw material carries out secondary booster, by rapidly and efficiently net exchanging device, into extrusion molding of getting to know.
Net-changing device 6: this device is to carry out last time filtering to raw material according to feedstock grade different in production.In order to
It is enough to make the clean degree for reaching production requirement of raw material very in production.It simultaneously also can be in terms of control to product quality
It is promoted, so that product is guaranteed.
It further, include a major ingredient mouth and at least one auxiliary feed ports 8 on the feed inlet 8；The charging
The charging motor of mouth 8 uses servo motor 10, accurately controls inlet amount；The screw barrel 3 forms for piecewise combination；It is described
Installation is threadedly engaged on bolt 4-5 and sleeve 4-1；On the discharge port 9 and sleeve 4-1 of the side wall of the filter cylinder 4-2 bung hole
It is overlapped after the installation of discharge port 9 again together；The drawing-in device is the quantitative drawing-in device that unit is gram-grade, this device can root
It according to the demand in production, can install additional, cancel at any time, principle is to quantify spiral volume using screw rod to drive by servo motor 10
Raw material is sent into the screw barrel 3 of host by rotation.The proportion of the adjustable raw material of this device, it is direct according to produced on-site
Adjustable formula, so that production assurance.Simultaneously can be to avoid in previous traditional production, only replacement raw material just can be with
Obtain new formula.So as to reduce the process of labour and raw material allotment stirring, manufacturing cost can be reduced in production.
Embodiment
Extruder raw material is had stepped through the auxiliary material feed inlet 8 on A section feeding mouth 8 and A section to add, parallel spiral shells double in the same direction
Spinner handle stirs mixture while conveying mixture toward back segment, in B sections and D sections substep addition unclassified stores
It is conveyed and is sufficiently mixed, substep carries out to guarantee that the poor raw material of some thermal stability is not degraded, and plays maximum
Effect, while this process can carry out recovery of performance to the regenerated plastics of inferior grade, pass sequentially through the long-acting filter device of stem
4, Melt Pump 5,6 extrusion die 7 of net-changing device can squeeze out drip irrigation zone, while to be granulated, need to only squeeze out extruder
Die head 7 is replaced with granulation extrusion die 7 and can be both granulated, easy to use.The wherein parallel equidirectional two-screw 3-1 in the present invention
Major advantage is that plurality of raw materials can be carried out to mixing dispersion, especially to the plasticizing of regenerated plastics, is kneaded, and dispersion and modification have
Good effect.
The control system of a whole set of extruder is stated: patch drip irrigation zone dedicated extruder is inlayed in a whole set of, using industrial personal computer or greatly
Type PLC develops dedicated control system；Capable of being opened by one key extruder.
1, extruder meeting basis produces density required for chinese raw materials, carries out closed-loop control, carries out to extruder screw
Adjust revolving speed.So that the compactness of raw material, always consistent.Product quality can effectively be improved.
2, Melt Pump internal can carry out data calculating, tie according to calculating according to extrusion output required in production, CPU
Fruit automatically adjusts revolving speed to servo motor.So that the feed squeezed out in getting to know remains constant.It can be improved crowded
Stationarity out allows material output to remain constant, product can be allowed to obtain more effective quality assurance.
3, it is transferred in industrial personal computer or PLC, manufactures interior edge patch Special drip tape material control system, machine replacement squeezes out
After getting to know, interior edge patch Special drip tape material can be directly produced, supplies traditional equipment to process interior edge patch drip irrigation zone product.
Claims (7)
1. a kind of novel interior edge patch drip irrigation zone dedicated extruder, including motor, reduction gearbox, screw barrel, the long-acting filtering of stem
Device, Melt Pump, net-changing device, extrusion die；It is characterized in that reduction gearbox is connected on the motor, the connection of reduction gearbox output end
There is screw barrel, and is equipped with feed inlet on screw barrel；The other end of the screw barrel installs the long-acting filter device of stem；
The long-acting filter device of stem is connected by connecting passage with Melt Pump；The other end of the Melt Pump by connecting passage with
Net-changing device is connected；The other end of the net-changing device is connected with extrusion die；The extrusion die is divided into extruder die head and trickle irrigation
Band die head；Pressure sensor is installed on the connecting passage, to monitor pressure in connecting passage；
Screw barrel: the screw barrel includes screw rod, machine barrel；The machine barrel is equipped at least one spout, the machine barrel
Twin-screw is inside installed, and twin-screw is cocurrent and parallel placement；Machine barrel is divided into A sections, B sections, C sections, D sections, E sections and F sections, wherein A
Section is equipped with feed inlet, and auxiliary spout is equipped in B section, and vaccum exhaust outlet is equipped in C section, is connected on vaccum exhaust outlet
Vacuum pump is equipped with auxiliary spout in D section；
The long-acting filter device of stem: the long-acting filter device of stem includes sleeve, filter cylinder, mesh sheet, installation lid, bolt；It is described
Sleeve is equipped with feed inlet, is equipped with discharge port to side in feed inlet；Circular hole is uniformly equipped on the filter cylinder, in filter cylinder bung hole
Side wall offer discharge port, the outer wall of filter cylinder is enclosed with one layer of mesh sheet, forms filter core；The installation lid side is equipped with discharge port
With anti-spin slot, top is equipped with apical pore, and lateral wall is closing, and installation lid is fixed together with filter cylinder cooperation；The filter core with
Installation lid is fitted in sleeve, and threaded hole is equipped at the top of sleeve；The bolt is mounted on the threaded hole at the top of sleeve
It is interior；
Melt Pump: the Melt Pump is driven by retarder by 32 high-precision permanent-magnet servo motors.
2. the novel interior edge patch drip irrigation zone dedicated extruder of one kind according to claim 1 and pelletizer, it is characterised in that:
It include a major ingredient mouth and at least one auxiliary feed ports on the feed inlet.
3. the novel interior edge patch drip irrigation zone dedicated extruder of one kind according to claim 1 or 2 and pelletizer, feature exist
In: the charging motor of feed inlet uses servo motor.
4. the novel interior edge patch drip irrigation zone dedicated extruder of one kind according to claim 1 and pelletizer, it is characterised in that:
The screw barrel forms for piecewise combination.
5. the novel interior edge patch drip irrigation zone dedicated extruder of one kind according to claim 1 and pelletizer, it is characterised in that:
Installation is threadedly engaged on the bolt and sleeve.
6. the novel interior edge patch drip irrigation zone dedicated extruder of one kind according to claim 1 and pelletizer, it is characterised in that:
It is overlapped again together after the discharge port of the side wall of the filter cylinder bung hole and the installation of the discharge port on sleeve.
7. the novel interior edge patch drip irrigation zone dedicated extruder of one kind according to claim 1 and pelletizer, it is characterised in that:
The drawing-in device is the quantitative drawing-in device that unit is gram-grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117343.0A CN109228241A (en) | 2018-09-26 | 2018-09-26 | The novel interior edge patch drip irrigation zone dedicated extruder of one kind and pelletizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117343.0A CN109228241A (en) | 2018-09-26 | 2018-09-26 | The novel interior edge patch drip irrigation zone dedicated extruder of one kind and pelletizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109228241A true CN109228241A (en) | 2019-01-18 |
Family
ID=65056724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811117343.0A Pending CN109228241A (en) | 2018-09-26 | 2018-09-26 | The novel interior edge patch drip irrigation zone dedicated extruder of one kind and pelletizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109228241A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114654701A (en) * | 2022-04-01 | 2022-06-24 | 贺瑞峰 | Alternate drip irrigation tape extrusion and filtration system |
| CN114714594A (en) * | 2022-03-10 | 2022-07-08 | 贺瑞峰 | Double-flow-passage filtering die head and screen structure suitable for reclaimed material production |
| CN115401814A (en) * | 2022-07-13 | 2022-11-29 | 上海睿聚环保科技有限公司 | Dedicated recovery granulation equipment of light reclaimed plastic |
-
2018
- 2018-09-26 CN CN201811117343.0A patent/CN109228241A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114714594A (en) * | 2022-03-10 | 2022-07-08 | 贺瑞峰 | Double-flow-passage filtering die head and screen structure suitable for reclaimed material production |
| CN114654701A (en) * | 2022-04-01 | 2022-06-24 | 贺瑞峰 | Alternate drip irrigation tape extrusion and filtration system |
| CN115401814A (en) * | 2022-07-13 | 2022-11-29 | 上海睿聚环保科技有限公司 | Dedicated recovery granulation equipment of light reclaimed plastic |
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Application publication date: 20190118 |