CN114106444B - Bio-based degradable film blowing master batch and production process thereof - Google Patents
Bio-based degradable film blowing master batch and production process thereof Download PDFInfo
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- CN114106444B CN114106444B CN202111535463.4A CN202111535463A CN114106444B CN 114106444 B CN114106444 B CN 114106444B CN 202111535463 A CN202111535463 A CN 202111535463A CN 114106444 B CN114106444 B CN 114106444B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 41
- 239000004594 Masterbatch (MB) Substances 0.000 title claims abstract description 35
- 238000010096 film blowing Methods 0.000 title description 3
- 239000000463 material Substances 0.000 claims abstract description 164
- 239000012535 impurity Substances 0.000 claims abstract description 69
- 238000007789 sealing Methods 0.000 claims abstract description 61
- 229920002472 Starch Polymers 0.000 claims abstract description 51
- 239000008107 starch Substances 0.000 claims abstract description 51
- 235000019698 starch Nutrition 0.000 claims abstract description 51
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 229920013716 polyethylene resin Polymers 0.000 claims abstract description 7
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 5
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 5
- 239000007822 coupling agent Substances 0.000 claims abstract description 5
- 239000000314 lubricant Substances 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims abstract 2
- 238000000926 separation method Methods 0.000 claims description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 238000007599 discharging Methods 0.000 claims description 15
- 238000004065 wastewater treatment Methods 0.000 claims description 7
- 244000061456 Solanum tuberosum Species 0.000 claims description 6
- 235000002595 Solanum tuberosum Nutrition 0.000 claims description 6
- 240000008042 Zea mays Species 0.000 claims description 6
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 6
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 6
- 235000005822 corn Nutrition 0.000 claims description 6
- 239000012466 permeate Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000007670 refining Methods 0.000 claims description 4
- 208000003643 Callosities Diseases 0.000 claims 1
- 206010020649 Hyperkeratosis Diseases 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 235000012015 potatoes Nutrition 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
- 238000003912 environmental pollution Methods 0.000 abstract description 6
- -1 compatilizer Substances 0.000 abstract 2
- 239000011538 cleaning material Substances 0.000 abstract 1
- 239000004033 plastic Substances 0.000 description 19
- 229920003023 plastic Polymers 0.000 description 19
- 239000000047 product Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000013502 plastic waste Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
- B04B7/08—Rotary bowls
- B04B7/18—Rotary bowls formed or coated with sieving or filtering elements
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2403/02—Starch; Degradation products thereof, e.g. dextrin
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a bio-based degradable blown film master batch and a production process thereof, wherein the bio-based degradable blown film master batch comprises the following components: biologically refined starch, polyethylene resin, compatilizer, coupling agent, antioxidant and lubricant. The process comprises the following steps: a. obtaining biological refined starch; b. removing impurities from the refined biological refined starch; c. heating and dehydrating the biological refined starch; d. mixing polyethylene resin, biological refined starch, lubricant, compatilizer, coupling agent and antioxidant; e. feeding the materials into an automatic feeding device; f. sealing the automatic feeding device and the double-screw extruder; g. extruding to form master batch; h. cleaning material conveying pipe, first hose and second hose. The obtained master batch can be degraded in natural environment, thereby reducing environmental pollution. Meanwhile, the material conveying stability is good, the prepared materials can be uniformly and continuously fed into the double-screw extruder through the automatic feeding device, and the production efficiency of master batch is improved.
Description
Technical Field
The invention belongs to the technical field of plastic products, and particularly relates to a bio-based degradable film blowing master batch and a production process thereof.
Background
Plastic, a new material, has been vigorously developed from the middle of the 20 th century and has been in a year-by-year continuous growth. Plastic articles are now in various industries of human activity; the plastic products are widely applied in various fields, and are more difficult to leave in our daily lives. While the plastic industry has evolved, two challenges are encountered with plastic materials: (1) limited resources. The polymer compounds such as plastics and the like mainly come from petroleum, but the petroleum is a non-renewable resource, and the earth has gradually exhausted. (2) pollution to the ecological environment. At present, the world plastic yield reaches two hundred million tons, and the national plastic yield is about 2000 ten thousand tons per year. More and more plastic products become waste plastic products after a period of use. The amount of the plastic product recycled for the second time is less than 50% of the production amount of the plastic product because the plastic product is hard to decompose. Therefore, a large amount of garbage is formed by the waste plastic products, which causes serious environmental pollution and threatens the living environment of human beings.
Disposable plastic products occupy a large proportion of plastic waste. Because the waste plastic has small density, is not easy to degrade and is difficult to recycle, floats in the living environment of people, causes great damage to the ecological environment and forms obvious visual pollution. Aiming at the technical problem, the prior art discloses an invention patent named as biological starch degradation plastic master batch and a production method thereof as well as degradation plastic (application number: CN 201010168047.0).
In the prior art, the prepared materials are put into an automatic feeding device, and then are sent into a double-screw extruder through the automatic feeding device, however, a certain distance exists between the automatic feeding device and the double-screw extruder, and if the automatic feeding device is communicated with the double-screw extruder by adopting a hose, the material conveying stability is poor; if the rigid pipeline is adopted to communicate the automatic feeding device with the double-screw extruder, when the pipeline is connected with the automatic feeding device, a certain distance exists at the joint of the pipeline and the double-screw extruder, and the sealing performance is poor.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art and provide the bio-based degradable blown film master batch and the production process thereof, and the obtained master batch can be degraded in natural environment, thereby reducing environmental pollution.
In the production process, a rigid material conveying pipe is arranged in the area between the automatic feeding device and the double-screw extruder, a hose is arranged in the area between the material conveying pipe and the automatic feeding device and in the area between the material conveying pipe and the double-screw extruder, the length of the hose is changed, the material conveying pipe, the hose, the automatic feeding device and the double-screw extruder are in sealing connection, the length of the material conveying pipe is longer, the material conveying stability is good, the prepared material can be uniformly and continuously fed into the double-screw extruder through the automatic feeding device, and the production efficiency of master batch is improved. Moreover, the hose is conveniently separated from the automatic feeding device, the hose is separated from the double-screw extruder, the material conveying pipes are adjusted to be at the horizontal position, all the material conveying pipes are positioned on the same horizontal plane, and then the hose and the material conveying pipes are communicated by the water conveying pipe, so that all the hose and the material conveying pipes can be cleaned by water, residual materials in the hose and the material conveying pipes are cleaned, and the data accuracy of the next production of master batches is ensured.
In order to solve the technical problems, the invention adopts the following technical scheme:
the bio-based degradable blown film master batch is characterized by comprising the following components: the biological refined starch is refined to 800-1200 meshes by using potato and corn as raw materials.
The production method of the bio-based degradable blown film master batch is characterized by comprising the following steps:
a. the potato and corn are used as raw materials for refining to obtain the biological refined starch, and the refined starch is refined to 800-1200 meshes, so that the obtained master batch can be degraded in natural environment, thereby reducing environmental pollution.
b. And impurity removal operation is carried out on the refined biological refined starch by adopting an impurity separation device, so that impurities are removed, and the production quality of the final master batch is improved.
c. Heating and dehydrating the purified biological refined starch for 20-30 minutes, and measuring the water content to be controlled below 0.5%.
d. The polyethylene resin is metered and then put into a cold mixing pot to be mixed and stirred with the biological refined starch, and then the lubricant, the compatilizer, the coupling agent and the antioxidant are sequentially added.
e. And (5) throwing the prepared materials into an automatic feeding device.
f. The vertical position of the discharging pipe of the automatic feeding device and the feeding pipe of the double-screw extruder is provided with a rigid material conveying pipe, a first hose is connected between the material conveying pipe and the discharging pipe of the automatic feeding device in a sealing mode, and a second hose is connected between the material conveying pipe and the feeding pipe of the double-screw extruder in a sealing mode, so that the discharging pipe of the automatic feeding device, the first hose, the material conveying pipe, the second hose and the feeding pipe of the double-screw extruder are connected in a sealing mode.
g. And (3) feeding the prepared materials into a double-screw extruder through an automatic feeding device, and carrying out melt blending and extrusion on the materials in the double-screw extruder to form master batches.
h. Taking out the first hose from the discharging pipe of the automatic feeding device, taking out the second hose from the feeding pipe of the double-screw extruder, adjusting the material conveying pipes to the horizontal position, sealing and connecting the water conveying pipes between the first hose and the second hose, connecting the water pipe on the second hose on the outermost side, connecting the first hose on the outermost side into the wastewater treatment device, introducing water into the water pipe, and removing residual materials in the material conveying pipes, the first hose and the second hose by the water through the material conveying pipes, the first hose and the second hose, and then flowing into the wastewater treatment device to finish cleaning of the material conveying pipes, the first hose and the second hose.
In the production process, a rigid material conveying pipe is arranged in the area between the automatic feeding device and the double-screw extruder, a hose is arranged in the area between the material conveying pipe and the automatic feeding device and in the area between the material conveying pipe and the double-screw extruder, the length of the hose is changed, the material conveying pipe, the hose, the automatic feeding device and the double-screw extruder are in sealing connection, the length of the material conveying pipe is longer, the material conveying stability is good, the prepared material can be uniformly and continuously fed into the double-screw extruder through the automatic feeding device, and the production efficiency of master batch is improved. Moreover, the hose is conveniently separated from the automatic feeding device, the hose is separated from the double-screw extruder, the material conveying pipes are adjusted to be at the horizontal position, all the material conveying pipes are positioned on the same horizontal plane, and then the hose and the material conveying pipes are communicated by the water conveying pipe, so that all the hose and the material conveying pipes can be cleaned by water, residual materials in the hose and the material conveying pipes are cleaned, and the data accuracy of the next production of master batches is ensured.
Further, impurity separator includes operation panel, separation barrel and shell, the operation panel is equipped with the support frame, fixedly connected with first motor on the support frame, first motor fixed connection separation barrel, the separation barrel is equipped with the separation hole, biological refined starch can see through the separation hole, the separation barrel is equipped with the cavity, cavity and separation hole intercommunication, the separation barrel is located in the cavity of shell, the impurity can't see through the separation hole, the outer end of separation barrel is equipped with impurity discharge port, the impurity that can't see through in the separation barrel passes through impurity discharge port to be discharged, the operation panel is equipped with the material and collects the mouth, biological refined starch sees through behind the separation hole and drops in the material collection mouth, and discharge from the material collection mouth, can dismantle in the impurity discharge port and be connected with the closing plate, the shell is equipped with the opening, the opening can be dismantled and be connected with the door plant.
The impurity removal operation is specifically as follows:
(1) The biological refined starch is placed into the cavity of the separation barrel, the sealing plate is installed in the impurity outlet at the outer end of the separation barrel, and the positioning column of the sealing plate is introduced into the installation hole of the separation barrel.
(2) The shell is provided with a positioning block, the positioning block is provided with a positioning hole, the edge of the sealing plate is provided with a protruding part, the protruding part is embedded into the positioning hole, and then the door plate is arranged in the opening of the shell.
(3) Through first motor drive separation bucket rotation, bellying location on the closing plate rotates in the locating hole, and biological refined starch is permeating the separating hole this moment to discharge into the mixer through the material collecting port, the mixer heats the dehydration to the biological refined starch after the edulcoration.
(4) When the biological refined starch in the cavity of the separation barrel is discharged, the first motor is stopped, the door plate is taken out, the baffle is put into the shell, the baffle is arranged between the separation barrel and the material collecting port, the positioning block is withdrawn from the shell, the positioning hole and the protruding part of the positioning block are separated, the sealing plate is taken out, and then the impurities at the inner wall of the separation barrel are scraped onto the baffle to discharge the impurities.
Adopt the closing plate to seal impurity discharge port for biological refined starch can only be discharged from the separating hole of separating drum, and impurity remains in the inside of separating drum, through rotating the separating drum, makes biological refined starch spread in the inboard of separating drum, makes biological refined starch and impurity be in motion state simultaneously, avoids the separating hole to be plugged up. When the biological refined starch in the cavity of the separation barrel is discharged, the baffle can be used for collecting impurities, and meanwhile, the impurities can be prevented from falling into the material collecting port. The positioning column of the sealing plate is introduced into the mounting hole of the separating barrel, and the bulge part at the edge of the sealing plate is embedded into the positioning hole of the positioning block, so that the sealing plate and the separating barrel rotate simultaneously, the sealing plate always seals the impurity discharge outlet at the outer end of the separating barrel, the sealing plate is prevented from falling off, and when the positioning block is withdrawn, the sealing plate and the separating barrel are connected in a simple mode, so that the sealing plate can be quickly taken out from the separating barrel, and the impurity removal operation is facilitated.
Further, the shell is provided with a through hole, the positioning block penetrates through the through hole, the outer side of the shell is fixedly provided with a fixing protrusion, and when the protruding part is embedded into the positioning hole, the positioning block is fixedly connected with the fixing protrusion through a bolt; when the bolt is unscrewed, the positioning block can be moved in the through hole, so that the positioning hole of the positioning block is separated from the protruding part. The positioning block moves in the through hole and is detachably connected to the shell, and meanwhile, the connecting nodes of the positioning block and the shell are arranged on the outer side of the shell, so that the bolt can be conveniently screwed or unscrewed.
Further, the sectional area of the separation barrel is gradually increased from the first motor to the direction of the sealing plate, the separation barrel can be designed into a round table shape, impurities can slide off conveniently, and impurities at the inner wall of the separation barrel can be scraped off rapidly.
Further, when the door plate is installed, the shell is provided with a sliding groove, the door plate is provided with a sliding lug, and the sliding lug horizontally moves in the sliding groove; when the baffle is installed, the baffle is provided with a connecting shaft, the connecting shaft slides into the sliding groove, and then the connecting shaft rotates in the sliding groove, so that the baffle is obliquely arranged, and then a locking piece is screwed into the connecting shaft and locked on the shell. According to different demands, the sliding groove of the shell can be used for installing a door plate or a baffle plate, and the installation angle of the baffle plate can be adjusted, so that the baffle plate is obliquely arranged, and impurities are discharged conveniently.
Further, adopt rotating device to adjust the material conveyer pipe, rotating device includes second motor, rotor plate and limiting plate, and the rotor plate keeps vertical state fixed connection on the second motor, and the rotor plate is equipped with the recess, and the material conveyer pipe keeps vertical state spacing in the recess, and the rotor plate plays the effect of protection to the material conveyer pipe, and the second motor drive rotor plate rotates simultaneously, just can make the material conveyer pipe rotate. The equal fixedly connected with limiting plate in both ends of rotor plate, limiting plate are equipped with two spacing holes, and the limiting hole of one of them limiting plate is passed at the both ends of first hose, and the limiting hole of another limiting plate is passed at the both ends of second hose, through pulling first hose, can change the length that the limiting plate was stretched out at the both ends of first hose, simultaneously through pulling second hose, can change the length that the limiting plate was stretched out at the both ends of second hose, has realized the length variation of hose for sealing connection between material conveyer pipe, hose, automatic feeding device and the twin-screw extruder.
Further, the rotating plate is connected with a supporting piece in a threaded manner, and the supporting piece stretches into the groove; the outside of material conveyer pipe is equipped with the compact heap, and rotor plate threaded connection has the fastener, and the fastener stretches into in the recess, and when the material conveyer pipe was in the settlement position of recess, support piece supported material conveyer pipe to compress tightly the compact heap through the fastener, through support piece and fastener with the material conveyer pipe location in the settlement position of recess, avoid material conveyer pipe and recess inner wall direct touching and the structure is impaired, can dismantle the connection in the recess with the material conveyer pipe moreover, be convenient for change material conveyer pipe.
Further, connectors are fixed at both ends of the first hose and both ends of the second hose, the connector thread connection of one end of the first hose is on the discharging pipe of the automatic feeding device, the connector thread connection of the other end of the first hose is on the material conveying pipe, the connector thread connection of one end of the second hose is on the material conveying pipe, and the connector thread connection of the other end of the second hose is on the feeding pipe of the double-screw extruder. The connector is of a rigid structure, so that force is conveniently applied to the connector, and the hose, the automatic feeding device and the double-screw extruder are in sealing connection.
Further, the rotating plate is provided with a T-shaped plate, the limiting plate is provided with a connecting plate, the T-shaped plate is fixed between the two connecting plates through bolts, the bearing capacity of the limiting plate can be improved, and the requirement of length adjustment of the hose in the limiting hole of the limiting plate is met.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
(1) The master batch obtained by the invention can be degraded in natural environment, thereby reducing environmental pollution.
(2) In the production process, a rigid material conveying pipe is arranged in the area between the automatic feeding device and the double-screw extruder, a hose is arranged in the area between the material conveying pipe and the automatic feeding device and in the area between the material conveying pipe and the double-screw extruder, the length of the hose is changed, the material conveying pipe, the hose, the automatic feeding device and the double-screw extruder are in sealing connection, the length of the material conveying pipe is longer, the material conveying stability is good, the prepared material can be uniformly and continuously fed into the double-screw extruder through the automatic feeding device, and the production efficiency of master batch is improved. Moreover, the hose is conveniently separated from the automatic feeding device, the hose is separated from the double-screw extruder, the material conveying pipes are adjusted to be at the horizontal position, all the material conveying pipes are positioned on the same horizontal plane, and then the hose and the material conveying pipes are communicated by the water conveying pipe, so that all the hose and the material conveying pipes can be cleaned by water, residual materials in the hose and the material conveying pipes are cleaned, and the data accuracy of the next production of master batches is ensured.
(3) Adopt the closing plate to seal impurity discharge port for biological refined starch can only be discharged from the separating hole of separating drum, and impurity remains in the inside of separating drum, through rotating the separating drum, makes biological refined starch spread in the inboard of separating drum, makes biological refined starch and impurity be in motion state simultaneously, avoids the separating hole to be plugged up. When the biological refined starch in the cavity of the separation barrel is discharged, the baffle can be used for collecting impurities, and meanwhile, the impurities can be prevented from falling into the material collecting port. The positioning column of the sealing plate is introduced into the mounting hole of the separating barrel, and the bulge part at the edge of the sealing plate is embedded into the positioning hole of the positioning block, so that the sealing plate and the separating barrel rotate simultaneously, the sealing plate always seals the impurity discharge outlet at the outer end of the separating barrel, the sealing plate is prevented from falling off, and when the positioning block is withdrawn, the sealing plate and the separating barrel are connected in a simple mode, so that the sealing plate can be quickly taken out from the separating barrel, and the impurity removal operation is facilitated.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of an impurity separating apparatus according to the present invention;
FIG. 2 is a schematic view showing the structure of the impurity separating device according to the present invention when the door panel is taken out;
FIG. 3 is a schematic view of the connection between the console and the housing of the present invention;
FIG. 4 is a schematic view of the positioning block according to the present invention;
FIG. 5 is a schematic view of a door panel according to the present invention;
FIG. 6 is a schematic diagram of a first motor fixedly connected to a separation barrel according to the present invention;
FIG. 7 is a schematic view of a separating drum according to the present invention;
FIG. 8 is a schematic structural view of a sealing plate according to the present invention;
fig. 9 is a schematic view of the structure of the present invention in the case of discharging impurities;
FIG. 10 is a schematic view of a baffle plate according to the present invention;
FIG. 11 is a schematic view of the present invention for feeding prepared material into a twin screw extruder via an automatic feeding apparatus;
FIG. 12 is a schematic view of a material conveying pipe according to the present invention;
FIG. 13 is a schematic view of the connection of a rotating plate and fasteners of the present invention;
FIG. 14 is a schematic view of a fastener of the present invention;
FIG. 15 is a schematic view of the structure of the support member of the present invention;
FIG. 16 is a schematic view of a structure of a limiting hole of the first hose passing through the limiting plate at both ends of the first hose;
FIG. 17 is a schematic view of the present invention in a material handling tube cleaning configuration.
In the figure, a 1-automatic feeding device; 2-a discharging pipe; 3-twin screw extruder; 4-feeding pipe; 5-a material conveying pipe; 61-a first hose; 62-a second hose; 7-rotating the plate; 8-a second motor; 9-limiting plates; 10-T-shaped plates; 11-connecting plates; 12-connecting heads; 13-a compaction block; 14-a fastener; 15-grooves; 16-a support; 17-a water delivery pipe; 18-a water pipe; 19-a wastewater treatment device; 20-an operation table; 21-a supporting frame; 22-a first motor; 23-a housing; 24-door panels; 25-a material collection port; 26-a separation barrel; 27-separation well; 28-sealing plate; 29-a boss; 30-a cavity; 31-mounting holes; 32-positioning columns; 33-a slip bump; 34-cavity; 35-positioning blocks; 36-positioning holes; 37-fixing projections; 38-a slip groove; 39-through holes; 40-baffle plates; 41-connecting shaft; 42-locking member.
Detailed Description
The invention discloses a bio-based degradable blown film master batch, which comprises the following components: the biological refined starch is refined to 800-1200 meshes by using potato and corn as raw materials.
The invention relates to a production method of a bio-based degradable blown film master batch, which comprises the following steps:
a. the potato and corn are used as raw materials for refining to obtain the biological refined starch, and the refined starch is refined to 800-1200 meshes, so that the obtained master batch can be degraded in natural environment, thereby reducing environmental pollution.
b. And impurity removal operation is carried out on the refined biological refined starch by adopting an impurity separation device, so that impurities are removed, and the production quality of the final master batch is improved.
As shown in fig. 1 to 10, the impurity separating device comprises an operation table 20, a separating barrel 26 and a shell 23, wherein the sectional area of the separating barrel 26 is gradually increased from the first motor 22 to the sealing plate 28, the separating barrel 26 can be designed into a round table shape, impurities can slide off conveniently, and impurities at the inner wall of the separating barrel 26 can be scraped off rapidly. The operation panel 20 is equipped with support frame 21, fixedly connected with first motor 22 on the support frame 21, first motor 22 fixed connection separation bucket 26, and the connecting axle and the separation bucket 26 fixed connection of first motor 22 set up the supporting seat on support frame 21 simultaneously, and the connecting axle passes the supporting seat. The separation barrel 26 is provided with a separation hole 27, the biological refined starch can permeate the separation hole 27, the separation barrel 26 is provided with a cavity 30, the cavity 30 is communicated with the separation hole 27, the separation barrel 26 is arranged in a cavity 34 of the shell 23, impurities cannot permeate the separation hole 27, the outer end of the separation barrel 26 is provided with an impurity outlet, and impurities which cannot permeate the separation barrel 26 are discharged through the impurity outlet. The operation table 20 is provided with a material collecting port 25, and the bio-refined starch falls into the material collecting port 25 after passing through the separation hole 27, and is discharged from the material collecting port 25. The impurity discharging port is detachably connected with a sealing plate 28, the shell 23 is provided with an opening, the opening is detachably connected with a door plate 24, and the outer side of the door plate 24 is fixedly connected with a handle.
The impurity removal operation is specifically as follows:
(1) The biologically refined starch is placed into the cavity 30 of the separation barrel 26, and then the sealing plate 28 is mounted into the impurity discharge port at the outer end of the separation barrel 26, and the positioning column 32 of the sealing plate 28 is introduced into the mounting hole 31 of the separation barrel 26.
(2) The positioning block 35 is mounted on the shell 23, the positioning block 35 is provided with a positioning hole 36, the edge of the sealing plate 28 is provided with a protruding part 29, the protruding part 29 is embedded into the positioning hole 36, and then the door plate 24 is mounted in the opening of the shell 23.
(3) The first motor 22 drives the separating drum 26 to rotate, the protruding part 29 on the sealing plate 28 is positioned in the positioning hole 36 to rotate, and the biological refined starch penetrates through the separating hole 27 and is discharged into the mixer through the material collecting opening 25.
(4) When the biological refined starch in the cavity 30 of the separating barrel 26 is discharged, the first motor 22 is stopped, the door plate 24 is taken out, the baffle 40 is arranged in the shell 23, the baffle 40 is arranged between the separating barrel 26 and the material collecting port 25, the positioning block 35 is withdrawn from the shell 23, the positioning hole 36 and the protruding part 29 of the positioning block 35 are separated, the sealing plate 28 is taken out, and impurities at the inner wall of the separating barrel 26 are scraped onto the baffle 40 to be discharged.
The seal plate 28 is adopted to seal the impurity discharge port, so that the biological refined starch can only be discharged from the separation hole 27 of the separation barrel 26, and impurities remain in the separation barrel 26, and the biological refined starch is spread on the inner side of the separation barrel 26 by rotating the separation barrel 26, and meanwhile, the biological refined starch and the impurities are in a motion state, so that the separation hole 27 is prevented from being blocked. When the biologically refined starch in the cavity 30 of the separation barrel 26 is discharged, the baffle 40 can be used for collecting impurities, and meanwhile, the impurities can be prevented from falling into the material collecting opening 25. The positioning column 32 of the sealing plate 28 is introduced into the mounting hole 31 of the separating barrel 26, and meanwhile, the protruding part 29 at the edge of the sealing plate 28 is embedded into the positioning hole 36 of the positioning block 35, so that the sealing plate 28 and the separating barrel 26 rotate simultaneously, meanwhile, the sealing plate 28 always seals an impurity outlet at the outer end of the separating barrel 26, the sealing plate 28 is prevented from falling off, and when the positioning block 35 is withdrawn, the sealing plate 28 and the separating barrel 26 are quickly taken out from the separating barrel 26 due to the simple connection mode of the sealing plate 28 and the separating barrel 26, so that the impurity removing operation is facilitated.
The housing 23 is provided with a through hole 39, the positioning block 35 passes through the through hole 39, the outer side of the housing 23 is fixed with a fixing protrusion 37, and when the boss 29 is embedded in the positioning hole 36, the positioning block 35 and the fixing protrusion 37 are fixedly connected by a bolt. When the bolt is unscrewed, the positioning block 35 can be moved in the through hole 39 so that the positioning hole 36 of the positioning block 35 and the boss 29 are disengaged. The positioning block 35 is moved in the through hole 39 and is detachably connected to the shell 23, and meanwhile, the connecting node of the positioning block 35 and the shell 23 is arranged on the outer side of the shell 23, so that bolts can be conveniently screwed or unscrewed.
When the door panel 24 is installed, the housing 23 is provided with a sliding groove 38, the door panel 24 is provided with a sliding projection 33, and the sliding projection 33 horizontally moves in the sliding groove 38. When the shutter 40 is installed, the shutter 40 is provided with the connection shaft 41, the connection shaft 41 is slid into the sliding groove 38, and then the connection shaft 41 is rotated in the sliding groove 38 so that the shutter 40 is obliquely arranged, and then the locking member 42 is screwed into the connection shaft 41, and the locking member 42 is locked to the housing 23. According to different requirements, the sliding groove 38 of the housing 23 can be used for installing the door plate 24 or installing the baffle 40, and the installation angle of the baffle 40 can be adjusted, so that the baffle 40 is obliquely arranged, and the impurity is conveniently discharged.
c. The mixer can heat and dehydrate the biological refined starch after impurity removal, and after 20-30 minutes, the water content is measured and controlled below 0.5%.
d. The polyethylene resin is metered and then put into a cold mixing pot to be mixed and stirred with the biological refined starch, and then the lubricant, the compatilizer, the coupling agent and the antioxidant are sequentially added.
e. The prepared material is put into the automatic feeding device 1.
f. As shown in fig. 11 to 17, a rigid material feed pipe 5 is provided at the vertical position of the material feed pipe 2 of the automatic feeding device 1 and the material feed pipe 4 of the twin-screw extruder 3, and a first hose 61 is sealingly connected between the material feed pipe 5 and the material feed pipe 2 of the automatic feeding device 1, and a second hose 62 is sealingly connected between the material feed pipe 5 and the material feed pipe 4 of the twin-screw extruder 3, so that the material feed pipe 2 of the automatic feeding device 1, the first hose 61, the material feed pipe 5, the second hose 62 and the material feed pipe 4 of the twin-screw extruder 3 are sealingly connected.
g. The prepared materials are sent into a double-screw extruder 3 through an automatic feeding device 1, and are melted and blended in the double-screw extruder 3 to be extruded to form master batches.
h. The first hose 61 is taken out from the discharging pipe 2 of the automatic feeding device 1, the second hose 62 is taken out from the feeding pipe 4 of the double-screw extruder 3, the material conveying pipe 5 is adjusted to the horizontal position, all the material conveying pipes 5 are positioned on the same horizontal plane, then the water conveying pipe 17 is connected between the first hose 61 and the second hose 62 in a sealing mode, the water pipe 18 is connected to the second hose 62 positioned at the outermost side, the first hose 61 positioned at the outermost side is connected to the wastewater treatment device 19, water is introduced into the water pipe 18, the water passes through the material conveying pipe 5, the first hose 61 and the second hose 62, then flows into the wastewater treatment device 19, and residual materials in the material conveying pipe 5, the first hose 61 and the second hose 62 are removed, so that the cleaning of the conveying pipe 5, the first hose 61 and the second hose 62 is completed.
Adopt rotating device to adjust material conveyer pipe 5, rotating device includes second motor 8, rotor plate 7 and limiting plate 9, and rotor plate 7 keeps vertical state fixed connection on second motor 8, and rotor plate 7 is equipped with recess 15, and material conveyer pipe 5 keeps vertical state spacing in recess 15, and rotor plate 7 plays the effect of protection to material conveyer pipe 5, and simultaneously the rotation of rotor plate 7 is driven to second motor 8, just can make material conveyer pipe 5 rotate. Both ends of the rotating plate 7 are fixedly connected with limiting plates 9, the limiting plates 9 are provided with two limiting holes, both ends of a first hose 61 penetrate through the limiting holes of one limiting plate 9, both ends of a second hose 62 penetrate through the limiting holes of the other limiting plate 9, the length of the two ends of the first hose 61 extending out of the limiting plates 9 can be changed by pulling the first hose 61, meanwhile, the length of the two ends of the second hose 62 extending out of the limiting plates 9 can be changed by pulling the second hose 62, the length change of the hoses is realized, and sealing connection among the material conveying pipe 5, the hoses, the automatic feeding device 1 and the double-screw extruder 3 is realized.
A support 16 is screwed in the threaded hole of the rotating plate 7, and the support 16 extends into the groove 15. The outside of material conveyer pipe 5 is equipped with compact heap 13, and rotor plate 7 threaded connection has fastener 14, and fastener 14 stretches into recess 15, and when material conveyer pipe 5 is in the settlement position of recess 15, support piece 16 supports material conveyer pipe 5 to compress tightly compact heap 13 through fastener 14, fix a position material conveyer pipe 5 in the settlement position of recess 15 through support piece 16 and fastener 14, avoid material conveyer pipe 5 and recess 15 inner wall direct touching and the structure is impaired, can dismantle material conveyer pipe 5 in recess 15 moreover, be convenient for change material conveyer pipe 5.
The connectors 12 are fixed at both ends of the first hose 61 and both ends of the second hose 62, the connector 12 at one end of the first hose 61 is in threaded connection with the discharging pipe 2 of the automatic feeding device 1, and the connector 12 at the other end of the first hose 61 is in threaded connection with the material conveying pipe 5. The connector 12 at one end of the second hose 62 is screwed on the material conveying pipe 5, and the connector 12 at the other end of the second hose 62 is screwed on the feeding pipe 4 of the double-screw extruder 3. The connector 12 is of a rigid structure, so that force is conveniently applied to the connector 12, and the hose, the automatic feeding device 1 and the double-screw extruder 3 are in sealing connection. The rotating plate 7 is provided with a T-shaped plate 10, the limiting plate 9 is provided with connecting plates 11, the T-shaped plate 10 is fixed between the two connecting plates 11 through bolts, the bearing capacity of the limiting plate 9 can be improved, and the requirement of length adjustment of a hose in a limiting hole of the limiting plate 9 is met.
In the production process, a rigid material conveying pipe 5 is arranged in the area between the automatic feeding device 1 and the double-screw extruder 3, a hose is arranged in the area between the material conveying pipe 5 and the automatic feeding device 1 and in the area between the material conveying pipe 5 and the double-screw extruder 3, the length of the hose is changed, the material conveying pipe 5, the hose, the automatic feeding device 1 and the double-screw extruder 3 are in sealing connection, the length of the material conveying pipe 5 is longer, the material conveying stability is good, the prepared material can be uniformly and continuously fed into the double-screw extruder 3 through the automatic feeding device 1, and the production efficiency of master batch is improved. Moreover, the hose is conveniently pulled out of the automatic feeding device 1, the hose is pulled out of the double-screw extruder 3, the material conveying pipes 5 are adjusted to be in the horizontal position, all the material conveying pipes 5 are positioned on the same horizontal plane, then the hose and the material conveying pipes 5 are communicated by adopting the water conveying pipes 1817, all the hose and the material conveying pipes 5 can be cleaned by water, residual materials in the hose and the material conveying pipes 5 are removed, and the data accuracy of the next production of the master batch is ensured.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications and the like made on the basis of the present invention to solve the substantially same technical problems and achieve the substantially same technical effects are included in the scope of the present invention.
Claims (9)
1. The production method of the bio-based degradable blown film master batch comprises the following components: the biological refined starch is refined to 800-1200 meshes by using potatoes and corns as raw materials;
the method is characterized by comprising the following steps of:
a. refining potato and corn as raw materials to obtain biological refined starch;
b. impurity separation is carried out on the biological refined starch obtained by refining by adopting an impurity separation device;
c. heating and dehydrating the purified biological refined starch;
d. metering polyethylene resin, adding the polyethylene resin into a cold mixing pot, mixing and stirring the polyethylene resin and the biological refined starch, and sequentially adding a lubricant, a compatilizer, a coupling agent and an antioxidant;
e. putting the prepared materials into an automatic feeding device;
f. a rigid material conveying pipe is arranged at the vertical position of a material discharging pipe of the automatic feeding device and a material feeding pipe of the double-screw extruder, a first hose is connected between the material conveying pipe and the material discharging pipe of the automatic feeding device in a sealing manner, and a second hose is connected between the material conveying pipe and the material feeding pipe of the double-screw extruder in a sealing manner, so that the material discharging pipe of the automatic feeding device, the first hose, the material conveying pipe, the second hose and the material feeding pipe of the double-screw extruder are connected in a sealing manner;
g. feeding the prepared materials into a double-screw extruder through an automatic feeding device, melting and blending the materials in the double-screw extruder, and extruding to form master batch;
h. taking out the first hose from the discharging pipe of the automatic feeding device, taking out the second hose from the feeding pipe of the double-screw extruder, adjusting the material conveying pipes to the horizontal position, sealing and connecting the water conveying pipes between the first hose and the second hose, connecting the water pipe on the second hose on the outermost side, connecting the first hose on the outermost side into the wastewater treatment device, introducing water into the water pipe, and removing residual materials in the material conveying pipes, the first hose and the second hose by the water through the material conveying pipes, the first hose and the second hose, and then flowing into the wastewater treatment device to finish cleaning of the material conveying pipes, the first hose and the second hose.
2. The production method of the bio-based degradable blown film master batch according to claim 1, wherein the production method comprises the following steps: the impurity separating device comprises an operation table, a separating barrel and a shell, wherein the operation table is provided with a supporting frame, a first motor is fixedly connected to the supporting frame, the first motor is fixedly connected with the separating barrel, the separating barrel is provided with a separating hole, biological refined starch can permeate through the separating hole, the separating barrel is provided with a cavity, the cavity is communicated with the separating hole, the separating barrel is arranged in a cavity of the shell, impurities cannot permeate through the separating hole, the outer end of the separating barrel is provided with an impurity discharge port, impurities which cannot permeate through the separating barrel are discharged through the impurity discharge port, the operation table is provided with a material collecting port, biological refined starch falls into the material collecting port after permeating through the separating hole and is discharged from the material collecting port, a sealing plate is detachably connected in the impurity discharge port, the shell is provided with an opening, and the opening is detachably connected with a door plate;
the impurity removal operation is specifically as follows:
(1) Placing the biological refined starch into a cavity of a separation barrel, then installing a sealing plate into an impurity discharge outlet at the outer end of the separation barrel, and introducing a positioning column of the sealing plate into an installation hole of the separation barrel;
(2) A positioning block is arranged on the shell, the positioning block is provided with a positioning hole, the edge of the sealing plate is provided with a protruding part, the protruding part is embedded into the positioning hole, and then a door plate is arranged in an opening of the shell;
(3) The separation barrel is driven to rotate by the first motor, the protruding part on the sealing plate is positioned in the positioning hole to rotate, and at the moment, the biological refined starch penetrates through the separation hole and is discharged into the mixer through the material collecting port;
(4) When the biological refined starch in the cavity of the separation barrel is discharged, the first motor is stopped, the door plate is taken out, the baffle is put into the shell, the baffle is arranged between the separation barrel and the material collecting port, the positioning block is withdrawn from the shell, the positioning hole and the protruding part of the positioning block are separated, the sealing plate is taken out, and then the impurities at the inner wall of the separation barrel are scraped onto the baffle to discharge the impurities.
3. The production method of the bio-based degradable blown film master batch according to claim 2, wherein the production method comprises the following steps: the shell is provided with a through hole, the positioning block penetrates through the through hole, a fixing protrusion is fixed on the outer side of the shell, and when the protrusion part is embedded into the positioning hole, the positioning block is fixedly connected with the fixing protrusion through a bolt; when the bolt is unscrewed, the positioning block can be moved in the through hole, so that the positioning hole of the positioning block is separated from the protruding part.
4. The production method of the bio-based degradable blown film master batch according to claim 2, wherein the production method comprises the following steps: the sectional area of the separation barrel gradually increases from the first motor to the sealing plate.
5. The production method of the bio-based degradable blown film master batch according to claim 2, wherein the production method comprises the following steps: when the door plate is installed, the shell is provided with a sliding groove, the door plate is provided with a sliding lug, and the sliding lug horizontally moves in the sliding groove; when the baffle is installed, the baffle is provided with a connecting shaft, the connecting shaft slides into the sliding groove, then the connecting shaft rotates in the sliding groove, so that the baffle is obliquely arranged, then a locking piece is screwed into the connecting shaft, and the locking piece is locked on the shell.
6. The production method of the bio-based degradable blown film master batch according to claim 1, wherein the production method comprises the following steps: adopt rotating device to adjust the material conveyer pipe, rotating device includes second motor, rotor plate and limiting plate, the rotor plate keeps vertical state fixed connection to be in on the second motor, the rotor plate is equipped with the recess, the material conveyer pipe keeps vertical state spacing in the recess, the equal fixedly connected with in both ends of rotor plate the limiting plate, the limiting plate is equipped with two spacing holes, one of them is passed to the both ends of first hose the spacing hole of limiting plate, another is passed to the both ends of second hose the spacing hole of limiting plate.
7. The production method of the bio-based degradable blown film master batch according to claim 6, wherein the production method comprises the following steps: the rotating plate is in threaded connection with a supporting piece, and the supporting piece stretches into the groove; the outside of material conveyer pipe is equipped with the compact heap, the pivoted board threaded connection has the fastener, the fastener stretches into in the recess, when the material conveyer pipe is in the settlement position of recess, support piece supports the material conveyer pipe, and pass through the fastener compresses tightly the compact heap.
8. The production method of the bio-based degradable blown film master batch according to claim 6, wherein the production method comprises the following steps: connectors are fixed at both ends of the first hose and both ends of the second hose, the connector at one end of the first hose is connected with the discharging pipe of the automatic feeding device in a threaded manner, the connector at the other end of the first hose is connected with the material conveying pipe in a threaded manner, the connector threaded connection of second hose one end is in on the material conveyer pipe, the connector threaded connection of second hose other end is in on the inlet pipe of twin-screw extruder.
9. The production method of the bio-based degradable blown film master batch according to claim 6, wherein the production method comprises the following steps: the rotating plate is provided with a T-shaped plate, the limiting plate is provided with connecting plates, and the T-shaped plate is fixed between the two connecting plates through bolts.
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| CN108097378A (en) * | 2017-12-19 | 2018-06-01 | 阜阳市福旺食品有限公司 | It is a kind of can self-skimming starch processing device |
| CN213441066U (en) * | 2020-10-17 | 2021-06-15 | 常州百利基生物材料科技有限公司 | Special double screw extruder of high degradation function master batch |
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