CN114031821A - Fully-degradable straw starch plastic and preparation system thereof - Google Patents
Fully-degradable straw starch plastic and preparation system thereof Download PDFInfo
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- CN114031821A CN114031821A CN202111477812.1A CN202111477812A CN114031821A CN 114031821 A CN114031821 A CN 114031821A CN 202111477812 A CN202111477812 A CN 202111477812A CN 114031821 A CN114031821 A CN 114031821A
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- 229920003023 plastic Polymers 0.000 title claims abstract description 39
- 239000004033 plastic Substances 0.000 title claims abstract description 39
- 229920002472 Starch Polymers 0.000 title claims abstract description 32
- 235000019698 starch Nutrition 0.000 title claims abstract description 32
- 239000008107 starch Substances 0.000 title claims abstract description 32
- 239000010902 straw Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 60
- 238000003756 stirring Methods 0.000 claims abstract description 38
- 239000011347 resin Substances 0.000 claims abstract description 16
- 229920005989 resin Polymers 0.000 claims abstract description 16
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 235000015112 vegetable and seed oil Nutrition 0.000 claims abstract description 9
- 239000008158 vegetable oil Substances 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229920002261 Corn starch Polymers 0.000 claims abstract description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 5
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 5
- 239000011575 calcium Substances 0.000 claims abstract description 5
- 239000008120 corn starch Substances 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims abstract description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 5
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 5
- 238000007599 discharging Methods 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 17
- 244000309464 bull Species 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 14
- 238000013461 design Methods 0.000 claims description 13
- 235000019483 Peanut oil Nutrition 0.000 claims description 3
- 239000004006 olive oil Substances 0.000 claims description 3
- 235000008390 olive oil Nutrition 0.000 claims description 3
- 239000000312 peanut oil Substances 0.000 claims description 3
- 235000019484 Rapeseed oil Nutrition 0.000 claims description 2
- 235000005687 corn oil Nutrition 0.000 claims description 2
- 239000002285 corn oil Substances 0.000 claims description 2
- 239000008159 sesame oil Substances 0.000 claims description 2
- 235000011803 sesame oil Nutrition 0.000 claims description 2
- 239000003549 soybean oil Substances 0.000 claims description 2
- 235000012424 soybean oil Nutrition 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 239000002245 particle Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 238000002156 mixing Methods 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000012644 addition polymerization Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229920006238 degradable plastic Polymers 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- 239000000178 monomer Substances 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
- C08L3/02—Starch; Degradation products thereof, e.g. dextrin
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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
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
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- 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
- B29C48/287—Raw material pre-treatment while feeding
-
- 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
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
-
- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/793—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling upstream of the plasticising zone, e.g. heating in the hopper
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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- C—CHEMISTRY; METALLURGY
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention provides a fully degradable straw starch plastic and a preparation system thereof, belongs to the technical field of plastic production and preparation, and solves the problems that the existing plastic does not have a degradable function and pollutes the environment. The fully-degradable straw starch plastic comprises the following raw materials in parts by weight: 2-10 parts of straw, 60-70 parts of resin, 3-8 parts of polyvinyl alcohol fiber, 30-45 parts of corn starch, 4-9 parts of calcium powder, 6-15 parts of titanium dioxide and 0.5-6 parts of vegetable oil, wherein the resin is biodegradable starch resin. The fully-degradable straw starch plastic provided by the invention can be naturally degraded in a natural environment, is more completely degraded, and avoids environmental pollution, meanwhile, the system provided by the invention can integrate two functions of stirring and extruding on one device, so that the occupied space of the device is reduced, and the raw materials of a fixed body can be crushed again in the feeding process, so that the raw materials with large particle size and blocks are prevented from being stirred.
Description
Technical Field
The invention belongs to the technical field of plastic production and preparation, relates to plastic and a preparation system thereof, and particularly relates to full-degradable straw starch plastic and a preparation system thereof.
Background
The plastic is a high molecular compound which is polymerized by addition polymerization or polycondensation reaction by taking a monomer as a raw material, and the shape structure of the plastic can be freely changed by an injection molding mode. The main component of the plastic is resin, petroleum resources are increasingly reduced along with the continuous development of petrochemical industry, the harm of petroleum byproducts to the environment is increased day by day, and the non-degradable plastic has the greatest threat to the environment.
Present plastics often do not have the degradable function, leave over the plastics in the environment and cause very big harm to the environment, the feature of environmental protection is not good enough, and in plastics preparation system, the extruder is main preparation equipment, before throwing into the extruder with the raw materials, in order to make fully contact between the different solid starting material, help the fusion of raw materials, consequently, need stir the raw materials, but agitated vessel often sets up alone, must increase the space that entire system occupy, smash into powder or granule with solid starting material simultaneously, when getting into the extruder, often can not smash the powder raw materials of complete large granule raw materials or caking because of the humidity for a bit, must influence the stirring effect between the raw materials.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a fully-degradable straw starch plastic and a preparation system thereof, wherein the fully-degradable straw starch plastic can be naturally degraded in the natural environment and is more completely degraded, and meanwhile, the system provided by the invention can integrate two functions of stirring and extruding on one device, so that the space occupied by the device is reduced, and the raw materials of a fixed body can be crushed again in the feeding process, so that the raw materials with large particle size and blocks are prevented from stirring.
The purpose of the invention can be realized by the following technical scheme:
the fully-degradable straw starch plastic comprises the following raw materials in parts by weight: 2-10 parts of straw, 60-70 parts of resin, 3-8 parts of polyvinyl alcohol fiber, 30-45 parts of corn starch, 4-9 parts of calcium powder, 6-15 parts of titanium dioxide and 0.5-6 parts of vegetable oil, wherein the resin is biodegradable starch resin, and the vegetable oil is any one of peanut oil, olive oil, rapeseed oil, corn oil, sesame oil and soybean oil.
A preparation system of full-degradable straw starch plastic comprises an extruder body, a base, a stirring barrel, a connecting mechanism and a feeding mechanism, wherein a feeding channel is communicated with one side of the top of the stirring barrel, a box body is connected with one side of the feeding channel in a bolted mode, a first crushing roller and a second crushing roller are respectively and rotatably connected with the front side and the rear side of the interior of the feeding channel, one end of the first crushing roller and one end of the second crushing roller are respectively and fixedly provided with a first rotating rod and a second rotating rod, a first motor is connected with the interior of the box body in a bolted mode, output shafts on two sides of the first motor are respectively and fixedly provided with a first gear, second gears are respectively and fixedly arranged on the surfaces of the first rotating rod and the second rotating rod, the first gear is meshed with the second gear, a second motor is connected with the top of the stirring barrel in a bolted mode, an output shaft of the second motor extends to the interior of the stirring barrel and is fixedly provided with a driving rod, stirring blades are bolted on two sides of the surface of the driving rod, an inner shell is bolted inside the stirring barrel, and a heating pipe is fixedly arranged inside the inner shell.
The working principle of the invention is as follows: opening the heating pipe with heat transfer to the agitator in, pour the inside of feed inlet with the raw materials, and carry to feedstock channel's inside through closed conveyer belt, open the second gear that first motor drove both sides through first gear, first bull stick and second bull stick are rotatory, it makes first crushing roller and second crushing roller be the relative rotary motion of direction, the raw materials is smashed under the effect of both sides crushing roller, the raw materials gets into the inside of agitator, it drives actuating lever and stirring leaf and begins to rotate to open the second motor, and stir the raw materials, the heating pipe preheats the raw materials, after the stirring finishes, open the switch of unloading, the raw materials after mixing gets into the inside of extruder body, begin to carry out plastics preparation.
The connecting mechanism comprises a first connecting pipe, a discharging switch and a second connecting pipe, the top end of the first connecting pipe is communicated with the bottom of the stirring barrel, the discharging switch is communicated with the bottom of the first connecting pipe, the second connecting pipe is communicated with the bottom of the discharging switch, and the bottom of the second connecting pipe is communicated with the inlet of the extruder body.
The structure for be linked together agitator and extruder body more than adopting for can control business turn over material simultaneously.
The pipe diameters of the first connecting pipe and the second connecting pipe are the same, and the discharging switch is a round-mouth star-shaped discharger.
By adopting the design, the discharging switch can continuously and effectively control the opening and closing of the first connecting pipe, and the service life of the discharging switch is prolonged.
The feeding mechanism comprises a feeding port, a closed conveying belt and a supporting rod, the feeding port is communicated with one side of the top of the closed conveying belt, the other end of the closed conveying belt is communicated with a feeding channel, and the supporting rod is bolted to the bottom of the closed conveying belt.
By adopting the structure, the raw materials are poured into the closed conveyor belt from the feeding hole, so that the raw materials can be fed in and out from the feeding channel, and the effect of lifting the raw materials to a high position and feeding the raw materials is realized.
The whole of closed conveyer belt is the slope design, the quantity of bracing piece is a plurality of groups and highly increases gradually.
Design more than adopting for transport the raw materials to the eminence and carry out the unloading, make the bracing piece can better support closed conveyer belt moreover.
Support columns are bolted on two sides of the stirring barrel, and the other ends of the support columns are bolted on the surface of the top of the base.
Structure more than adopting for carry out the auxiliary stay to the agitator, and have and avoid the agitator to collapse.
The inner shell is in a circular design, and the number of the heating pipes is a plurality of and is distributed in an annular array.
Design more than adopting, the even heating pipe that distributes can carry out the even heating to the raw materials in the stirring, promotes and preheats the effect.
The first gear and the second gear are both conical gears, and the specifications and the sizes of the second gears on the two sides are the same.
By adopting the structure, the rotating rods and the crushing rollers on two sides can synchronously rotate.
The one end that feedstock channel was kept away from to first bull stick and second bull stick all passes through the bearing rotation with the inner wall of box and is connected, the specification size of first bull stick and second bull stick is the same.
By adopting the structure, the stability of the first rotating rod and the second rotating rod in the rotating process is improved, and the bending condition of the first rotating rod and the second rotating rod is avoided.
Compared with the prior art, the fully degradable straw starch plastic and the preparation system thereof have the following advantages:
1. the fully-degradable straw starch plastic provided by the invention can be naturally degraded in a natural environment, is more completely degraded, and avoids environmental pollution, meanwhile, the system provided by the invention can integrate two functions of stirring and extruding on one device, so that the space occupied by the device is reduced, and the raw materials of a fixed body can be crushed again in the feeding process, so that the raw materials with large particle size and blocks are prevented from being stirred, and meanwhile, the system can preheat the raw materials in the stirring process, and keep the raw materials at a higher temperature before entering an extruder, so that the raw materials can be rapidly in a molten state, and the production efficiency is improved.
2. Through the setting of first connecting pipe, discharge switch and second connecting pipe, their cooperation is used and can be linked together the entry of agitator and extruder body, and when discharge switch opened simultaneously, the raw materials can get into the inside of extruder body, and when discharge switch closed, the raw materials stopped to get into to the realization carries out the effect controlled to the business turn over material.
3. Through the setting of feed inlet, closed conveyer belt and bracing piece, pour the raw materials into closed conveyer belt from the feed inlet, open closed conveyer belt alright send into the raw materials from feedstock channel department, realize the effect of material loading, the bracing piece plays the effect of supporting closed conveyer belt moreover.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
FIG. 3 is a schematic view of the front cross-sectional structure of the mixing tank of the present invention.
Fig. 4 is a schematic view of a partial top cross-sectional structure of the present invention.
FIG. 5 is a schematic top sectional view of the mixing tank of the present invention.
Fig. 6 is a right side view of the structure of the present invention.
In the figure, 1, an extruder body; 2. a base; 3. a stirring barrel; 4. a connecting mechanism; 41. A first connecting pipe; 42. a discharge switch; 43. a second connecting pipe; 5. a feeding mechanism; 51. A feed inlet; 52. a closed conveyor belt; 53. a support bar; 6. a feed channel; 7. a box body; 8. a first crushing roller; 9. a second crushing roller; 10. a first rotating lever; 11. a second rotating rod; 12. a first motor; 13. a first gear; 14. a second gear; 15. a second motor; 16. a drive rod; 17. stirring blades; 18. an inner shell; 19. heating a tube; 20. and (4) a support column.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
The first embodiment is as follows:
the fully-degradable straw starch plastic comprises the following raw materials in parts by weight: 2 parts of straw, 60 parts of resin, 3 parts of polyvinyl alcohol fiber, 30 parts of corn starch, 4 parts of calcium powder, 6 parts of titanium dioxide and 1.5 parts of vegetable oil, wherein the resin is biodegradable starch resin, and the vegetable oil is peanut oil.
Example two:
the fully-degradable straw starch plastic comprises the following raw materials in parts by weight: 10 parts of straw, 70 parts of resin, 8 parts of polyvinyl alcohol fiber, 45 parts of corn starch, 9 parts of calcium powder, 15 parts of titanium dioxide and 6 parts of vegetable oil, wherein the resin is biodegradable starch resin, and the vegetable oil is olive oil.
As shown in fig. 1-6, a preparation system of a fully degradable straw starch plastic comprises an extruder body 1, a base 2, a mixing tank 3, a connecting mechanism 4 and a feeding mechanism 5, wherein one side of the top of the mixing tank 3 is communicated with a feeding channel 6, one side of the feeding channel 6 is bolted with a box body 7, the front side and the rear side inside the feeding channel 6 are respectively and rotatably connected with a first crushing roller 8 and a second crushing roller 9, the first crushing roller 8 and the second crushing roller 9 have the same specification and size, one end of the first crushing roller 8 and one end of the second crushing roller 9 are respectively and fixedly provided with a first rotating rod 10 and a second rotating rod 11, the inside of the box body 7 is bolted with a first motor 12, the first motor 12 is a double-shaft motor and can simultaneously drive the first gears 13 on two sides to drive the crushing rollers on two sides to rotate, the output shafts on two sides of the first motor 12 are respectively and fixedly provided with a first gear 13, the surfaces of the first rotating rod 10 and the second rotating rod 11 are both fixedly provided with a second gear 14, the first gear 13 is meshed with the second gear 14, the top of the stirring barrel 3 is connected with a second motor 15 in a bolt way, the output shaft of the second motor 15 extends into the stirring barrel 3 and is fixedly provided with a driving rod 16, the two sides of the surface of the driving rod 16 are both connected with stirring blades 17 in a bolt way, the inside of the stirring barrel 3 is connected with an inner shell 18 in a bolt way, and the inside of the inner shell 18 is fixedly provided with a heating pipe 19. the fully degradable straw starch plastic provided by the invention can be naturally degraded in a natural environment, is more completely degraded and avoids polluting the environment, meanwhile, the system provided by the invention can integrate two functions of stirring and extruding on one device, reduces the space occupied by the device, can crush the raw material of a fixed body again in the feeding process, and avoids the large-particle-diameter and blocky raw materials from participating in stirring, simultaneously this system can preheat the raw materials at the stirring in-process to make the raw materials keep higher temperature before getting into the extruder, help the raw materials to get into the molten state fast, promote production efficiency.
The connecting mechanism 4 comprises a first connecting pipe 41, a discharging switch 42 and a second connecting pipe 43, the top end of the first connecting pipe 41 is communicated with the bottom of the stirring barrel 3, the discharging switch 42 is communicated with and arranged at the bottom of the first connecting pipe 41, the second connecting pipe 43 is communicated with and arranged at the bottom of the discharging switch 42, the bottom of the second connecting pipe 43 is communicated with the inlet of the extruder body 1, in the embodiment, through the arrangement of the first connecting pipe 41, the discharging switch 42 and the second connecting pipe 43, the stirring barrel 3 can be communicated with the inlet of the extruder body 1 through the matching use of the first connecting pipe 41, the discharging switch 42 and the second connecting pipe 43, and meanwhile, when the discharging switch 42 is opened, raw materials can enter the extruder body 1, and when the discharging switch 42 is closed, the raw materials stop entering, so that the effect of controlling the feeding and discharging is realized.
First connecting pipe 41 is the same with the pipe diameter of second connecting pipe 43, discharge switch 42 is round mouth star type tripper, first connecting pipe 41 and second connecting pipe 43 are metal material and make, the texture is harder, in this embodiment, round mouth star type tripper is a star type tripper can be used in collecting material system, as the tripper of feed bin, star type tripper has overload capacity reinforce, characteristics such as difficult wearing and tearing, through adopting above-mentioned design, it makes discharge switch 42 can continuously control opening and shutting of first connecting pipe 41 effectively, service life is longer.
The feeding mechanism 5 comprises a feeding hole 51, a closed type conveyor belt 52 and a supporting rod 53, wherein the feeding hole 51 is communicated with one side of the top of the closed type conveyor belt 52, the other end of the closed type conveyor belt 52 is communicated with the feeding channel 6, and the supporting rod 53 is bolted to the bottom of the closed type conveyor belt 52.
The whole of closed conveyer belt 52 is the slope design, and the quantity of bracing piece 53 is several groups and height increase gradually, in this embodiment, in order to be used for transporting the raw materials to the eminence from low, carries out the material loading, consequently designs the whole of closed conveyer belt 52 and is the slope form, and the height of bracing piece 53 increases gradually moreover for carrying out better support to closed conveyer belt 52.
The both sides of agitator 3 all are bolted to have support column 20, and support column 20's the other end and the surface bolt at base 2 top, support column 20 are the bending design, and in this embodiment, through the setting of support column 20, it is used for carrying out auxiliary stay to agitator 3, increases its fixed fastness to avoid agitator 3 to collapse under the effect of gravity.
In the present embodiment, in order to ensure that the rotation speeds of the first rotating rod 10 and the second rotating rod 11 are the same, the specification sizes of the second gears 14 on both sides are designed to be the same, so that the first crushing roller 8 and the second crushing roller 9 can synchronously perform the rotation motions in opposite directions.
The one end that feedstock channel 6 was kept away from to first bull stick 10 and second bull stick 11 all passes through the bearing rotation with the inner wall of box 7 and is connected, and first bull stick 10 is the same with the specification size of second bull stick 11, and in this embodiment, the bull stick through design both sides all rotates with the inner wall of box 7 to be connected, and its other end that makes the both sides bull stick has all obtained fixedly, increases the stability of both sides bull stick in doing the rotary motion process, avoids the curved situation to appear in the bull stick of both sides.
The working principle of the invention is as follows: when the material mixing device works, firstly, the heating pipe 19 is started, the temperature of the heating pipe 19 rises, heat is transferred to the inside of the mixing barrel 3 through the inner shell 18, then raw materials are poured into the inside of the feeding hole 51, the closed type conveyor belt 52 and the first motor 12 are started, the raw materials enter the inside of the feeding channel 6 through the closed type conveyor belt 52, meanwhile, the first motor 12 drives the second gears 14 on two sides to rotate through the first gear 13, the first rotating rod 10 and the second rotating rod 11 drive the first crushing roller 8 and the second crushing roller 9 to do relative rotation movement in directions, then the raw materials enter between the first crushing roller 8 and the second crushing roller 9, solid raw materials with qualified small particles can easily pass through, large particles or blocky raw materials are crushed under the action of the crushing rollers on two sides, so that raw materials with larger particle size or blocky particles are prevented from participating in production, and then the raw materials enter the inside of the mixing barrel 3, open second motor 15, it drives actuating lever 16 and stirring leaf 17 and begins to rotate, and stir the raw materials of difference, thereby make different raw materials intermix, help different raw materials melting together, heating pipe 19 preheats the raw materials simultaneously, the back of finishing is stirred, open discharge switch 42, the raw materials after the mixture process first connecting pipe 41, discharge switch 42 and second connecting pipe 43 get into the inside of extruder body 1, thereby begin to carry out plastics preparation, and the raw materials gets into with higher temperature, can reduce the time that needs among the melting process by a wide margin, and the work efficiency is promoted.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. The fully-degradable straw starch plastic is characterized by comprising the following raw materials in parts by weight: 2-10 parts of straw, 60-70 parts of resin, 3-8 parts of polyvinyl alcohol fiber, 30-45 parts of corn starch, 4-9 parts of calcium powder, 6-15 parts of titanium dioxide and 0.5-6 parts of vegetable oil, wherein the resin is biodegradable starch resin, and the vegetable oil is any one of peanut oil, olive oil, rapeseed oil, corn oil, sesame oil and soybean oil.
2. A preparation system of fully-degradable straw starch plastic is used for preparing the fully-degradable straw starch plastic according to claim 1, and is characterized by comprising an extruder body (1), a base (2), a stirring barrel (3), a connecting mechanism (4) and a feeding mechanism (5), wherein a feeding channel (6) is communicated with one side of the top of the stirring barrel (3), a box body (7) is bolted on one side of the feeding channel (6), a first crushing roller (8) and a second crushing roller (9) are respectively and rotatably connected to the front side and the rear side of the interior of the feeding channel (6), a first rotating rod (10) and a second rotating rod (11) are respectively and fixedly arranged at one end of each of the first crushing roller (8) and the second crushing roller (9), a first motor (12) is bolted on the interior of the box body (7), and first gears (13) are fixedly arranged on output shafts on two sides of the first motor (12), the surface of first bull stick (10) and second bull stick (11) all fixes and is provided with second gear (14), first gear (13) and second gear (14) mesh mutually, second motor (15) have been bolted at the top of agitator (3), the output shaft of second motor (15) extends to the inside of agitator (3) and fixes and be provided with actuating lever (16), stirring leaf (17) have all been bolted to the both sides on actuating lever (16) surface, the inside bolt of agitator (3) has inner shell (18), the inside fixed heating pipe (19) that is provided with of inner shell (18).
3. The preparation system of the fully degradable straw starch plastic as claimed in claim 2, wherein the connecting mechanism (4) comprises a first connecting pipe (41), a discharging switch (42) and a second connecting pipe (43), the top end of the first connecting pipe (41) is communicated with the bottom of the stirring barrel (3), the discharging switch (42) is communicated with the bottom of the first connecting pipe (41), the second connecting pipe (43) is communicated with the bottom of the discharging switch (42), and the bottom of the second connecting pipe (43) is communicated with the inlet of the extruder body (1).
4. The system for preparing the fully degradable straw starch plastic as claimed in claim 3, wherein the first connecting pipe (41) and the second connecting pipe (43) have the same pipe diameter, and the discharging switch (42) is a round star-shaped discharger.
5. The system for preparing the fully degradable straw starch plastic according to claim 2, wherein the feeding mechanism (5) comprises a feeding hole (51), a closed conveyor belt (52) and a support rod (53), the feeding hole (51) is communicated with one side of the top of the closed conveyor belt (52), the other end of the closed conveyor belt (52) is communicated with the feeding channel (6), and the support rod (53) is bolted to the bottom of the closed conveyor belt (52).
6. The system for preparing the fully degradable straw starch plastic as claimed in claim 5, wherein the whole of the closed conveyor belt (52) is designed to be inclined, and the number of the support rods (53) is several groups and the height of the support rods is gradually increased.
7. The system for preparing the fully degradable straw starch plastic as claimed in claim 2, wherein two sides of the stirring barrel (3) are bolted with supporting columns (20), and the other ends of the supporting columns (20) are bolted with the surface of the top of the base (2).
8. The system for preparing the fully degradable straw starch plastic as claimed in claim 2, wherein the inner shell (18) is of circular design, and the number of the heating pipes (19) is several and distributed in an annular array.
9. The system for preparing the fully degradable straw starch plastic as claimed in claim 2, wherein the first gear (13) and the second gear (14) are both conical gears, and the specifications and sizes of the second gears (14) on both sides are the same.
10. The system for preparing the fully degradable straw starch plastic as claimed in claim 2, wherein the ends of the first rotating rod (10) and the second rotating rod (11) far away from the feeding channel (6) are rotatably connected with the inner wall of the box body (7) through bearings, and the first rotating rod (10) and the second rotating rod (11) have the same specification and size.
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| CN202111477812.1A CN114031821A (en) | 2021-12-06 | 2021-12-06 | Fully-degradable straw starch plastic and preparation system thereof |
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