CN111376405A - BOPP film rolling scrap recovery device and recovery method - Google Patents
BOPP film rolling scrap recovery device and recovery method Download PDFInfo
- Publication number
- CN111376405A CN111376405A CN201811654847.6A CN201811654847A CN111376405A CN 111376405 A CN111376405 A CN 111376405A CN 201811654847 A CN201811654847 A CN 201811654847A CN 111376405 A CN111376405 A CN 111376405A
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- Prior art keywords
- film
- pipe
- membrane
- conveying pipe
- bopp
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Classifications
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- 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
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
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- 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
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B17/0412—Disintegrating plastics, e.g. by milling to large particles, e.g. beads, granules, flakes, slices
-
- 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
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B2017/0424—Specific disintegrating techniques; devices therefor
- B29B2017/044—Knives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention provides a BOPP film rolling scrap recovery device and a recovery method, comprising a feeding control device and a crusher; the feeding control device comprises a roller frame, a film tape suction mechanism and a film tape guide mechanism; the membrane strip suction mechanism is provided with an air blower and a membrane strip conveying pipe; the inlet of the film belt conveying pipe is adjacent to the film belt guide mechanism, the outlet of the film belt conveying pipe is connected with the feed inlet of the pulverizer, and the discharge outlet of the pulverizer is connected with external film extrusion equipment; an air pipe of the blower is connected with the membrane strip conveying pipe, and the air outlet direction of the air pipe at the air pipe connecting point is the same as the conveying direction of the membrane strip; the BOPP film belt on the roller frame edge material roller is led to the film belt guide mechanism, when the recovery device works, the air blower supplies air to the film belt conveying pipe to enable the inlet of the conveying pipe to form negative pressure, the film belt at the guide mechanism is sucked into the conveying pipe and conveyed to the crusher to be crushed, and the crushed film belt is directly conveyed to the film extrusion equipment to be re-filmed; the invention can recycle the BOPP film rolling rim charge by a long-distance transmission pipe, and the BOPP film rolling rim charge is not easy to tangle in the pipe.
Description
Technical Field
The invention relates to the field of plastic film manufacturing, in particular to a BOPP film rolling scrap recovery device and a BOPP film rolling scrap recovery method.
Background
After the BOPP film is stretched and rolled, because two sides of the film are stretched by the stretching device, the quality of the part is not easy to guarantee, the common processing mode is to directly cut off two sides of the BOPP film roll, the cut part is the rolling rim charge, the shape of the rolling rim charge is a roller wound by a slender BOPP film, and because the rim charge is made of the same material as that of the finished BOPP film, if the rim charge can be recycled, the production cost can be effectively saved.
Although some patents propose to suck the membrane rim charge into the pulverizer, and the technical scheme that the pulverizer pulverizes the membrane rim charge to recover the rim charge is provided, the BOPP membrane rim charge has certain particularity, the BOPP membrane rim charge is a membrane belt, and is light, thin and long, in the prior art, when a transmission pipe is long, the BOPP membrane is conveyed by suction, so that the airflow in the pipe is difficult to accurately control, the BOPP membrane is easy to tangle in the pipe, the pipeline is blocked, the rim charge recovery is influenced, the pulverizer is easy to influence after the tangled BOPP membrane enters the pulverizer, and how to solve the problems is a research direction.
Disclosure of Invention
The invention provides a BOPP film rolling rim charge recovery device and a recovery method, which can recover the BOPP film rolling rim charge through a long-distance transmission pipe, and the BOPP film rolling rim charge is not easy to tangle in the pipe.
The invention adopts the following technical scheme.
The recycling device and the recycling method for the BOPP film winding leftover materials are used for recycling the leftover material rollers cut off after the large-size BOPP film is wound, and the leftover material recycling device comprises a feeding control device and a crusher; the feeding control device comprises a roller frame, a film tape suction mechanism and a film tape guide mechanism; the membrane strip suction mechanism is provided with an air blower and a membrane strip conveying pipe; the inlet of the membrane strip conveying pipe is adjacent to the membrane strip guide mechanism; the outlet of the membrane belt conveying pipe is connected with the feed inlet of the pulverizer, and the discharge outlet of the pulverizer is connected with external membrane extrusion equipment; an air pipe of the air blower is connected to the membrane strip conveying pipe, and the air outlet direction of the air pipe at the air pipe connecting point on the membrane strip conveying pipe is the same as the conveying direction of the membrane strip; the roller frame is arranged in to the rim charge roller, and the BOPP membrane area on the rim charge roller leads to membrane area guiding mechanism department, and when recovery unit during operation, the air-blower sent out the mobile air the same with membrane area direction of delivery in to the membrane area conveyer pipe, makes membrane area conveyer pipe entrance form the negative pressure, inhales the membrane area of membrane area guiding mechanism department in the membrane area conveyer pipe, and the membrane area of membrane area conveyer pipe is blown to the rubbing crusher by intraductal mobile air and is smashed, and the membrane area after smashing is directly sent into outside membrane extrusion equipment by the rubbing crusher and is filmed again.
The film belt guiding mechanism is provided with a plurality of guiding holes, the side of the inlet of the film belt conveying pipe is arranged in the plurality of guiding holes, and the guiding holes guide the film belt led out from the roller frame, so that the film belt is sucked into the film belt conveying pipe from the inlet edge of the film belt conveying pipe.
The inlet of the membrane strip conveying pipe is rectangular.
The recovery method sequentially comprises the following steps:
a1, inserting the edge material roller cut after the BOPP film is wound on the roller frame, and ensuring that the edge material roller can rotate freely.
And A2, drawing out the BOPP rim charge film strip from the rim charge roller, and enabling the BOPP rim charge film strip to pass through a guide hole in the position of a film strip guide mechanism, wherein the starting end of the BOPP rim charge film strip is close to the pipe orifice of the film strip conveying pipe.
A3, starting an air blower to blow air into the film tape conveying pipe, so that the air flow direction in the film tape conveying pipe is the same as the conveying direction of the film tape; at the moment, negative pressure is formed at the pipe orifice of the membrane belt conveying pipe to suck air at the pipe orifice.
A4, because the BOPP rim charge membrane area is for frivolous shape membrane and membrane area guiding mechanism and membrane area conveyer pipe mouth of pipe are next-door neighbour, therefore the air flow of membrane area conveyer pipe mouth of pipe department inhales the BOPP rim charge membrane area into the membrane area conveyer pipe, and intraductal wind-force also brings the rim charge roller that drives on the roller frame through the BOPP rim charge membrane and rotates when propelling movement BOPP rim charge membrane area.
A5, pushing the BOPP rim charge film tape into a pulverizer by wind power in a film tape conveying pipe, arranging a cutter wheel in the pulverizer to pulverize the BOPP rim charge film tape, discharging the air input in the film tape conveying pipe from the pulverizer, and feeding the pulverized BOPP rim charge film tape into external film extrusion equipment by the pulverizer to form a film again.
In the conveying direction of the membrane band, the membrane band conveying pipe behind the air pipe access point on the membrane band conveying pipe is formed by connecting a plurality of sections of pipelines through flanges.
Only one edge material roller is arranged on each roller frame, and each guide hole is only responsible for guiding the film belt of one roller frame.
In the conveying direction of the membrane tape, the pipe diameter of the membrane tape conveying pipe behind the air pipe access point on the membrane tape conveying pipe is larger than that of the membrane tape conveying pipe in front of the air pipe access point.
The air blower is an air blower with adjustable wind power.
When the membrane strip conveying pipe is long, a plurality of air pipe access points are sequentially arranged on the membrane strip conveying pipe to enhance the wind power in the pipe.
According to the invention, an air pipe of the air blower is connected to a membrane strip conveying pipe, and the air outlet direction of the air pipe at the air pipe connecting point on the membrane strip conveying pipe is the same as the conveying direction of the membrane strip; when the recovery device works, the blower sends flowing air in the same direction as the conveying direction of the membrane tape into the membrane tape conveying pipe to enable the inlet of the membrane tape conveying pipe to form negative pressure, the membrane tape at the position of the membrane tape guide mechanism is sucked into the membrane tape conveying pipe, the membrane tape in the membrane tape conveying pipe is blown to the crusher to be crushed by the flowing air in the membrane tape conveying pipe, and the pipe diameter of the membrane tape conveying pipe behind the air pipe access point on the membrane tape conveying pipe is larger than that of the membrane tape conveying pipe in front of the air pipe access point in the conveying direction of the membrane tape; when the membrane strip conveying pipe is long, a plurality of air pipe access points are sequentially arranged on the membrane strip conveying pipe to enhance the wind power in the pipe; this design uses the air-blower to blow intraductal membrane area, consequently can set up a plurality of tuber pipe access points for intraductal air current easily controls, and when intraductal wind speed was stronger, intraductal BOPP rim charge membrane area just is difficult to tangle.
In the invention, when the recovery device works, the blower sends flowing air in the same direction as the conveying direction of the film belt into the film belt conveying pipe, and the film belt in the film belt conveying pipe is blown to the crusher to be crushed by the flowing air in the pipe; in the design, because the rim charge membrane strip is pushed by the wind power of the air blower, in the wind power attenuation process, the wind power received at the rear end of the rim charge membrane strip is greater than the head end of the membrane strip, so that the rear end of the rim charge membrane strip with large weight and large area is not easy to settle in the pipe, and the rim charge membrane strip can be effectively prevented from tangling in the pipe.
In the invention, the film belt in the film belt conveying pipe is blown to a crusher by flowing air in the pipe to be crushed, and the crushed film belt is directly sent to external film extrusion equipment by the crusher to be re-filmed; because the material of the rim charge is the same as that of the finished BOPP film, the rim charge can be directly sent into film extrusion equipment to be re-filmed after being crushed without re-granulation, thereby saving the cost and ensuring the quality of the re-filmed recovered film belt.
According to the invention, the film tape guide mechanism is provided with a plurality of guide holes which are respectively arranged at the side of the inlet of the film tape conveying pipe, and the guide holes guide the film tape led out from the roller frame, so that the film tape is sucked into the film tape conveying pipe from the inlet edge of the film tape conveying pipe; only one edge material roller is arranged on each roller frame, and each guide hole is only responsible for guiding the film belt of one roller frame; this design makes the membrane area on every roller frame mutually contactless when getting into the membrane area conveyer pipe, can effectively reduce the winding problem that arouses because of the air current velocity of flow of membrane area conveyer pipe entrance is low.
In the invention, in the conveying direction of the membrane band, the pipe diameter of the membrane band conveying pipe behind the air pipe access point on the membrane band conveying pipe is larger than that of the membrane band conveying pipe in front of the air pipe access point; the design enables the wind power of the wind pipe to enter the membrane strip conveying pipe according to the conveying direction of the membrane strip, and the wind power in the pipe is strengthened.
In the invention, in the conveying direction of the membrane band, the membrane band conveying pipe behind the air pipe access point on the membrane band conveying pipe is formed by connecting a plurality of sections of pipelines through flanges; this design can let the user maintain the pipeline conveniently, and when the pipeline took place to tangle and block up, this design can let the user disassemble the pipeline fast so that the mediation.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic of the present invention;
in the figure: 1-a scrap roller; 2-BOPP film tape (scrap); 3-membrane belt conveying pipe inlet; 4-a guide hole; 5-a film tape guide mechanism; 6-a roller frame; 7-membrane belt conveying pipe; 8-air pipe; 9-a blower; 10-air duct access point; 11-a pulverizer; 12-film extrusion equipment.
Detailed Description
As shown in fig. 1, the recovery device and the recovery method for the rim charge of the rolled BOPP film are used for recovering a rim charge roller 1 cut off after the rolling of the large-size BOPP film, and the rim charge recovery device comprises a feeding control device and a crusher 11; the feeding control device comprises a roller frame 6, a film tape suction mechanism and a film tape guide mechanism 5; the membrane strip suction mechanism is provided with an air blower 9 and a membrane strip conveying pipe 7; the inlet 3 of the membrane strip conveying pipe is adjacent to the membrane strip guide mechanism 5; the outlet of the membrane belt conveying pipe is connected with the feed inlet of the crusher 11, and the discharge outlet of the crusher 11 is connected with the external membrane extrusion equipment 12; an air pipe 8 of the air blower 9 is connected to the membrane strip conveying pipe 7, and the air outlet direction of the air pipe 8 at an air pipe connecting point 10 on the membrane strip conveying pipe 7 is the same as the conveying direction of the membrane strip; the edge material roller 1 is arranged on the roller frame 6, the BOPP film belt 2 on the edge material roller 1 is led to the position of the film belt guide mechanism 5, when the recovery device works, the air blower 9 sends out flowing air in the same direction as the conveying direction of the film belt into the film belt conveying pipe 7, negative pressure is formed at the position of the film belt conveying pipe inlet 3, the film belt 2 at the position of the film belt guide mechanism 5 is sucked into the film belt conveying pipe 7, the film belt 2 in the film belt conveying pipe 7 is blown to the crusher 11 to be crushed by the flowing air in the pipe, and the crushed film belt 2 is directly sent into the external film extrusion equipment 12 by the crusher 11 to be re-filmed.
Film area guiding mechanism 5 is equipped with a plurality of guiding hole 4, the side of film area conveyer pipe entry 3 is arranged in to a plurality of guiding hole 4 branch, 2 direction of film area that guiding hole 4 pair roller frame 6 was drawn forth makes film area 2 follow 3 border departments of the entry of film area conveyer pipe inhaled film area conveyer pipe 7.
The inlet of the membrane strip delivery pipe 7 is rectangular.
The recovery method sequentially comprises the following steps:
a1, inserting the edge material roller cut after the BOPP film is wound on the roller frame, and ensuring that the edge material roller can rotate freely.
And A2, drawing out the BOPP rim charge film strip from the rim charge roller, and enabling the BOPP rim charge film strip to pass through a guide hole in the position of a film strip guide mechanism, wherein the starting end of the BOPP rim charge film strip is close to the pipe orifice of the film strip conveying pipe.
A3, starting an air blower to blow air into the film tape conveying pipe, so that the air flow direction in the film tape conveying pipe is the same as the conveying direction of the film tape; at the moment, negative pressure is formed at the pipe orifice of the membrane belt conveying pipe to suck air at the pipe orifice.
A4, because the BOPP rim charge membrane area is for frivolous shape membrane and membrane area guiding mechanism and membrane area conveyer pipe mouth of pipe are next-door neighbour, therefore the air flow of membrane area conveyer pipe mouth of pipe department inhales the BOPP rim charge membrane area into the membrane area conveyer pipe, and intraductal wind-force also brings the rim charge roller that drives on the roller frame through the BOPP rim charge membrane and rotates when propelling movement BOPP rim charge membrane area.
A5, pushing the BOPP rim charge film tape into a pulverizer by wind power in a film tape conveying pipe, arranging a cutter wheel in the pulverizer to pulverize the BOPP rim charge film tape, discharging the air input in the film tape conveying pipe from the pulverizer, and feeding the pulverized BOPP rim charge film tape into external film extrusion equipment by the pulverizer to form a film again.
In the conveying direction of the membrane strip, the membrane strip conveying pipe 7 behind the air pipe access point 10 on the membrane strip conveying pipe 7 is formed by connecting a plurality of sections of pipelines through flanges.
Only one scrap roller 1 is arranged on each roller frame 6, and each guide hole 4 is only responsible for guiding the film strip of one roller frame 6.
In the conveying direction of the membrane strip, the pipe diameter of the membrane strip conveying pipe 7 behind the air pipe access point 10 on the membrane strip conveying pipe 7 is larger than that of the membrane strip conveying pipe in front of the air pipe access point 10.
The air blower 9 is an air blower with adjustable wind power.
When the membrane strip conveying pipe 7 is long, a plurality of air pipe access points 10 are sequentially arranged on the membrane strip conveying pipe 7 to enhance the wind force in the pipe.
Claims (9)
- A BOPP film rolling rim charge recovery device and a recovery method are used for recovering rim charge rollers cut off after rolling of a large-size BOPP film, and are characterized in that: the scrap recovery device comprises a feeding control device and a crusher; the feeding control device comprises a roller frame, a film tape suction mechanism and a film tape guide mechanism; the membrane strip suction mechanism is provided with an air blower and a membrane strip conveying pipe; the inlet of the membrane strip conveying pipe is adjacent to the membrane strip guide mechanism; the outlet of the membrane belt conveying pipe is connected with the feed inlet of the pulverizer, and the discharge outlet of the pulverizer is connected with external membrane extrusion equipment; an air pipe of the air blower is connected to the membrane strip conveying pipe, and the air outlet direction of the air pipe at the air pipe connecting point on the membrane strip conveying pipe is the same as the conveying direction of the membrane strip; the roller frame is arranged in to the rim charge roller, and the BOPP membrane area on the rim charge roller leads to membrane area guiding mechanism department, and when recovery unit during operation, the air-blower sent out the mobile air the same with membrane area direction of delivery in to the membrane area conveyer pipe, makes membrane area conveyer pipe entrance form the negative pressure, inhales the membrane area of membrane area guiding mechanism department in the membrane area conveyer pipe, and the membrane area of membrane area conveyer pipe is blown to the rubbing crusher by intraductal mobile air and is smashed, and the membrane area after smashing is directly sent into outside membrane extrusion equipment by the rubbing crusher and is filmed again.
- 2. The BOPP film rolling scrap recycling device and the recycling method according to claim 1, wherein the device comprises: the film belt guiding mechanism is provided with a plurality of guiding holes, the side of the inlet of the film belt conveying pipe is arranged in the plurality of guiding holes, and the guiding holes guide the film belt led out from the roller frame, so that the film belt is sucked into the film belt conveying pipe from the inlet edge of the film belt conveying pipe.
- 3. The BOPP film rolling scrap recycling device and the recycling method according to claim 2, wherein the device comprises: the inlet of the membrane strip conveying pipe is rectangular.
- 4. The BOPP film rolling scrap recycling device and the recycling method according to claim 3, wherein the device comprises: the recovery method comprises the following steps in sequence;a1, inserting a scrap roller cut after the BOPP film is wound on a roller frame, and ensuring that the scrap roller can rotate freely;a2, drawing out the BOPP rim charge film strip from the rim charge roller, and passing through a guide hole at a film strip guide mechanism, wherein the starting end of the BOPP rim charge film strip is close to the pipe orifice of a film strip conveying pipe;a3, starting an air blower to blow air into the film tape conveying pipe, so that the air flow direction in the film tape conveying pipe is the same as the conveying direction of the film tape; at the moment, negative pressure is formed at the pipe orifice of the membrane belt conveying pipe to suck air at the pipe orifice;a4, because the BOPP rim charge film strip is a light and thin film and the film strip guide mechanism is close to the pipe orifice of the film strip conveying pipe, the BOPP rim charge film strip is sucked into the film strip conveying pipe by the air flow at the pipe orifice of the film strip conveying pipe, and when the BOPP rim charge film strip is pushed by wind force in the pipe, the rim charge roller on the roller frame is driven to rotate by the BOPP rim charge film strip;a5, pushing the BOPP rim charge film tape into a pulverizer by wind power in a film tape conveying pipe, arranging a cutter wheel in the pulverizer to pulverize the BOPP rim charge film tape, discharging the air input in the film tape conveying pipe from the pulverizer, and feeding the pulverized BOPP rim charge film tape into external film extrusion equipment by the pulverizer to form a film again.
- 5. The BOPP film rolling scrap recycling device and the recycling method according to claim 2, wherein the device comprises: in the conveying direction of the membrane band, the membrane band conveying pipe behind the air pipe access point on the membrane band conveying pipe is formed by connecting a plurality of sections of pipelines through flanges.
- 6. The BOPP film rolling scrap recycling device and the recycling method according to claim 2, wherein the device comprises: only one edge material roller is arranged on each roller frame, and each guide hole is only responsible for guiding the film belt of one roller frame.
- 7. The BOPP film rolling scrap recycling device and the recycling method according to claim 1, wherein the device comprises: in the conveying direction of the membrane tape, the pipe diameter of the membrane tape conveying pipe behind the air pipe access point on the membrane tape conveying pipe is larger than that of the membrane tape conveying pipe in front of the air pipe access point.
- 8. The BOPP film rolling scrap recycling device and the recycling method according to claim 1, wherein the device comprises: the air blower is an air blower with adjustable wind power.
- 9. The BOPP film rolling scrap recycling device and the recycling method according to claim 1, wherein the device comprises: when the membrane strip conveying pipe is long, a plurality of air pipe access points are sequentially arranged on the membrane strip conveying pipe to enhance the wind power in the pipe.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201811654847.6A CN111376405A (en) | 2018-12-29 | 2018-12-29 | BOPP film rolling scrap recovery device and recovery method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201811654847.6A CN111376405A (en) | 2018-12-29 | 2018-12-29 | BOPP film rolling scrap recovery device and recovery method |
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Publication Number | Publication Date |
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CN111376405A true CN111376405A (en) | 2020-07-07 |
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CN201811654847.6A Pending CN111376405A (en) | 2018-12-29 | 2018-12-29 | BOPP film rolling scrap recovery device and recovery method |
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CN (1) | CN111376405A (en) |
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2018
- 2018-12-29 CN CN201811654847.6A patent/CN111376405A/en active Pending
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