CN113290739A - Degradable plastic and preparation method thereof - Google Patents
Degradable plastic and preparation method thereof Download PDFInfo
- Publication number
- CN113290739A CN113290739A CN202110563217.3A CN202110563217A CN113290739A CN 113290739 A CN113290739 A CN 113290739A CN 202110563217 A CN202110563217 A CN 202110563217A CN 113290739 A CN113290739 A CN 113290739A
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- degradable
- degradable plastic
- processing method
- fixedly connected
- processing system
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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
- 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
- B29B13/04—Conditioning or physical treatment of the material to be shaped by cooling
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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
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
- B29B2017/0217—Mechanical separating techniques; devices therefor
- B29B2017/0224—Screens, sieves
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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
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention relates to the field of plastics, in particular to degradable plastic and a preparation method thereof. A processing method of degradable plastics comprises the following steps: plasticizing the degradable plastic raw material; step two: carrying out solid-liquid separation on the plasticized material; step three: cooling the liquid material; the degradable plastic prepared by the processing method of the degradable plastic comprises the following raw materials in parts by weight: 20 parts of polyethylene, 50 parts of starch and 10 parts of polyvinyl chloride. The degradable plastic processing system comprises a reaction box and a sliding bottom plate, wherein the sliding bottom plate is connected in the reaction box in a sliding mode, the degradable plastic processing system further comprises a first motor, a gear I and a rack, and the rack is fixedly connected to the sliding bottom plate.
Description
Technical Field
The invention relates to the field of plastics, in particular to degradable plastic and a preparation method thereof.
Background
The invention discloses a plastic processing method and a plastic processing system, and particularly discloses a plastic processing method and a plastic processing system, wherein a plurality of pressing devices (2) are arranged in the plastic processing system. The plastic processing system includes: a bend correction sensor (13) for monitoring the slack of the web (C) intermittently fed from the preceding first pressing device (2 a); a second slack monitoring device (22) for monitoring slack in the web (C) as it is fed to the subsequent plastics processing device (2 b). The intermittent feeding is converted into continuous feeding by a feeding device (15) according to the slack created by the intermittent feeding of the web (C) conveyed from the first pressing device (2 a). At the same time, the speed of the continuous feed is controlled to increase/decrease. On the other hand, while the second slack monitoring device (22) monitors the slack of the web (C) when the web (C) is fed to the subsequent plastic processing device (2b) and performs speed-up/speed-down control on the preceding plastic processing device (2a), the present invention cannot achieve solid-liquid separation and cooling of the plasticized material and prevent liquid from remaining in the device.
Disclosure of Invention
The invention provides degradable plastic and a preparation method thereof to overcome the defects of the prior art, and has the beneficial effects that the plasticized material can be subjected to solid-liquid separation and cooled, and simultaneously, liquid is prevented from being retained in a device.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a processing method of degradable plastics comprises the following steps
The method comprises the following steps: plasticizing the degradable plastic raw material;
step two: carrying out solid-liquid separation on the plasticized material;
step three: cooling the liquid material;
the degradable plastic processing method also uses a degradable plastic processing system which comprises a reaction box and a sliding bottom plate, wherein the sliding bottom plate is connected in the reaction box in a sliding manner.
A degradable plastic processing method uses a degradable plastic processing system, the degradable plastic processing system further comprises a first motor, a gear I and a rack, the rack is fixedly connected to a sliding bottom plate, the first motor is fixedly connected to a reaction box, the gear I is fixedly connected to an output shaft of the first motor, and the gear I is meshed with the rack.
The degradable plastic processing method uses a degradable plastic processing system, the degradable plastic processing system further comprises a rack protective shell, the rack protective shell is fixedly connected in the reaction box, and a rack can pass through the rack protective shell.
The degradable plastic processing method uses a degradable plastic processing system, and the degradable plastic processing system also comprises a filter plate which is fixedly connected inside the reaction box.
A degradable plastic processing method uses a degradable plastic processing system, the degradable plastic processing system further comprises a second motor, a lead screw and a scraper, the lead screw is fixedly connected to an output shaft of the second motor, a slide way is arranged on one side of a reaction box, the lead screw can slide in the slide way, the lead screw is in threaded connection with the scraper, and the second motor is fixedly connected to one side of the reaction box.
The processing method of the degradable plastics uses a degradable plastics processing system which also comprises a scraping tip, and the scraping tip and a scraping plate are detachably connected together through screws.
A degradable plastic processing method uses a degradable plastic processing system, the degradable plastic processing system also comprises rotating baffles, and the two rotating baffles are rotationally connected with a scraper.
A method for processing degradable plastics uses a degradable plastics processing system, which also includes a shrinking spring, a plurality of springs connecting two rotating baffles with a scraper.
The degradable plastic prepared by the processing method of the degradable plastic comprises the following raw materials in parts by weight: 20 parts of polyethylene, 50 parts of starch and 10 parts of polyvinyl chloride.
Thus, according to some embodiments of the present disclosure,
can realize preventing that liquid from being detained in the device when carrying out solid-liquid separation and refrigerated to the material after the plastify, can carry out multiple cooling to the material to comparatively careful cooling, the cooling effect is better
Drawings
The present disclosure may be more clearly understood from the following detailed description, taken with reference to the accompanying drawings, in which:
FIG. 1 is a first schematic structural view of a cooling box;
FIG. 2 is a first schematic structural diagram of a cooling tank and a water tank;
FIG. 3 is a first schematic structural diagram of a cooling box and a reaction box;
FIG. 4 is a first schematic structural view of a reaction box and a slide base plate;
FIG. 5 is a schematic view of the structure of a reaction box and a scraper;
FIG. 6 is a schematic structural view of a reaction box and a rack protective shell;
FIG. 7 is a schematic view of the construction of the squeegee;
fig. 8 is a schematic structural view of the sliding bottom plate and the rack protective housing;
FIG. 9 is a schematic view of the structure of the water tank;
fig. 10 is a schematic view of the structure of the scraping tip.
In the figure: a reaction box 101; a slideway 102; a rack protective housing 103; a filter plate 104; a first motor 201; a gear I202; a rack 203; a slide bottom plate 204; a second motor 301; a lead screw 302; a squeegee 303; a rotating shutter 304; a retraction spring 305; a scraping tip 306; a third motor 401; a gear II 402; gear III 403; a cooling tank 501; a spacing baffle 502; a fixed plate 503; a water tank 601; a water inlet baffle 602; a wooden plug 603.
Detailed Description
A processing method of degradable plastics comprises the following steps
The method comprises the following steps: plasticizing the degradable plastic raw material;
step two: carrying out solid-liquid separation on the plasticized material;
step three: cooling the liquid material;
in addition, as an example, as shown in fig. 4, this example solves the problem of providing space for the preparation of degradable plastics for plasticization, and facilitating the cleaning of the sliding bottom plate 204,
because sliding connection has sliding bottom plate 204 in reaction box 101, when needs preparation degradable plastics, can be through sliding bottom plate 204 to reaction box 101 in, as the reaction bottom plate when the degradable plastics plastify preparation, add the sliding bottom plate 204 top with raw and other materials afterwards, operate, after treating the plastify, can take out sliding bottom plate 204, conveniently clear up sliding bottom plate 204 and reaction box 101 inside, thereby make the clearance degree of difficulty reduce, the clearance mode is succinct.
In addition, as an example, as shown in fig. 4, this example solves the problem of enabling the sliding bottom plate 204 to be automatically blanked,
because the first motor 201 of fixedly connected with on the reaction box 101, I202 of fixedly connected with gear on the output shaft of first motor 201, fixedly connected with rack 203 on the sliding bottom plate 204, I202 of gear and rack 203 meshing, so after the plastify of degradable plastics is accomplished, thereby first motor 201 starts and drives I202 of gear and rotate, I202 of gear rotates and drives the rack 203 with I202 meshing of gear and remove, rack 203 removes and drives sliding bottom plate 204 from the interior roll-off of reaction box 101, because the material after the plastify this moment can't pass through the curb plate of reaction box 101, so the material can be automatic to slide to the below from sliding bottom plate 204, thereby cool off, thereby realize the step of automatic unloading.
In addition, as an example, as shown in fig. 4, this example solves the problem of preventing the rack 203 from being blocked and not moving during the automatic blanking process,
because fixedly connected with rack protective housing 103 in reaction box 101, can pass through rack 203 in the rack protective housing 103, after sliding bottom plate 204 in reaction box 101, because need add the raw materials of preparation degradable plastics to sliding bottom plate 204, so there are raw and other materials to drop on rack 203, thereby can't drive rack 203 when making gear I202 rotate and remove, nevertheless because the protection of rack protective housing 103, make the raw and other materials of degradable plastics only can drop on rack protective housing 103, can't drop on rack 203, so can avoid the condition that can't drive rack 203 when gear I202 rotates to produce.
In addition, as an example, as shown in fig. 4-5, this example solves the problem of separating the plasticized degradable plastic from the raw material that does not become liquid,
because the inside of the reaction box 101 is fixedly connected with the filter plate 104, after the sliding bottom plate 204 slides out, the material on the sliding bottom plate 204 automatically falls onto the filter plate 104, and because the liquid material can slowly pass through the filter holes arranged on the filter plate 104, the liquid material can be left on the filter plate 104, so that the plasticized degradable plastic forms solid-liquid separation, and meanwhile, because the liquid material passes through the filter plate 104 slowly, the plasticized degradable plastic can be cooled to a certain extent, and the energy required for subsequent cooling is saved.
In addition, as an example, as shown in fig. 5, this example solves the problem of preventing the liquid material from stagnating on filter plate 104 and cooling to some extent,
because the second motor 301 is fixedly connected with the outside of the reaction box 101, the screw 302 is fixedly connected with the output shaft of the second motor 301, the scraper 303 is connected with the screw 302 in a threaded manner, meanwhile, the reaction box 101 is provided with a slide way 102, the scraper 303 passes through the slide way 102, when the second motor 301 is started, the screw 302 is driven to rotate, the screw 302 rotates to drive the scraper 303 to move on the screw, so that the scraper 303 can scrape the material falling from the sliding bottom plate 204, so that liquid material does not remain on filter plate 104 and cannot pass through the pores of filter plate 104, and during scraping, the materials are repeatedly touched, so that the materials are continuously turned over, the ventilation of the materials is increased, the ventilation area of the materials is enlarged, therefore, the material can be cooled to a certain degree, the subsequent cooling difficulty is reduced, and good support is improved for the subsequent cooling process.
In addition, as an example, as shown in fig. 5 and 7, this example solves the problem of further preventing liquid from entering the filter holes during the scraping process of the scraper 303,
because scraper 303 all has a plurality of scraping tip 306 through bolted connection in the left and right sides, when scraper 303 is moving, can make scraping tip 306 scrape in the middle of two rows of filtration pores for liquid can be followed scraping tip 306 and slided to the filtration pore of both sides, thereby prevent that the condition of partial liquid can not get into the filter screen and appear.
In addition, as an example, as shown in fig. 5 and 7, the example solves the problem that a large amount of materials directly fall to block the scraper 303 and cannot move,
because scraper blade 303 both sides all rotate and are connected with rotation baffle 304, so when the material on sliding bottom 204 falls, can fall on rotation baffle 304, can directly not fall both sides around scraper blade 303, thereby can avoid a large amount of materials directly to fall both sides around scraper blade 303 and lead to scraper blade 303 card to die unable the condition that the motion caused the harm to the device to appear, simultaneously because partial material gets into two rotation baffle 304 earlier on, the descending height of partial material has been reduced, so can reduce the produced dust when descending to a certain extent.
In addition, as an example, as shown in fig. 5 and 7, this example solves the problem of preventing the rotation shutter 304 from obstructing the squeegee 303,
because a plurality of springs link together two rotating baffle 304 and scraper blade 303, so can make two rotating baffle 304 not have a large amount of materials to fall and keep an ascending gesture in slant all the time before, thereby can not exert an influence to the motion of scraper blade 303, can make shrink spring 305 constantly tensile when a large amount of materials are stored between two rotating baffle 304, when stretching to two rotating baffle 304 for oblique downward position, can make two materials that are located between two moving baffle 304 slide down along rotating baffle 304, later on because the pulling force of spring can make two moving baffle 304 resume ascending gesture in slant, thereby continue to work.
The degradable plastic prepared by the processing method of the degradable plastic comprises the following raw materials in parts by weight: 20 parts of polyethylene, 50 parts of starch and 10 parts of polyvinyl chloride.
The degradable plastic processing system further comprises a third motor 401, a gear II 402, a gear III 403, a cooling box 501, spacing baffles 502 and fixing plates 503, the gear II 402 is fixedly connected to an output shaft of the third motor 401, the gear II 402 is meshed with the gear III 403, a shaft is fixedly connected to the gear III 403, two sides of the shaft are rotatably connected to the reaction box 101, two third motors 401 are fixedly connected to the reaction box 101, the two cooling boxes 501 are respectively rotatably connected to the shafts fixedly connected to the two gears III 403, the fixing plates 503 are connected to the two screws through threads, the lower ends of the two cooling boxes 501 are respectively connected through the two fixing plates 503, and the spacing baffles 502 are multiple.
In addition, as an example, as shown in fig. 1, 3 and 6, the example solves the problem that the material can be uniformly distributed in the cooling box,
liquid raw materials filtered from the filter plate 104 enter the cooling tank 501, because the heights of a plurality of spacing baffles 502 arranged in the cooling tank 501 are all lower than the height of the periphery of the cooling tank 501, the liquid raw materials can slide from the higher baffles to the lower baffles, when the height of the liquid raw materials between each baffle is lower than the height of the baffle, the liquid can stop flowing between each baffle, so that the whole cooling tank 501 is uniformly distributed, the cooling area is uniform, thereby achieving better cooling effect, after cooling is finished, a worker unscrews screws on fixing plates 503 for bearing the weight of the raw materials in the two cooling tanks 501 and the cooling tank 501, then takes down the fixing plates 503, then starts the third motor 401, rotates the gear II 402, rotates the gear III 403, rotates the cooling tank 501, the cooling tank 501 rotates and automatically pours out the raw materials in the cooling tank 501, so that the work difficulty is reduced by simply completing the discharging, the bolt is only required to be manually screwed off, the materials can be controlled not to be suddenly scattered, and the safety of maintenance workers can be guaranteed.
The degradable plastic processing system further comprises a water tank 601 and a water inlet baffle 602, wherein the two water tanks 601 are fixedly connected to the two cooling tanks 501, the multiple water inlet baffles 602 are fixedly connected to the two water tanks 601, the multiple water inlet baffles 602 correspond to the multiple interval baffles 502, and the water tanks 601 are provided with two round holes.
In addition, as an example, as shown in fig. 2 and 9, this example solves the problem of uniform cooling of the material between a plurality of spaced baffles 502,
two round holes that are equipped with on the water tank 601 can be used for intaking and the drainage, can use the water pipe to let in cold water from the mouth above when cooling down, water is along a plurality of baffles 602 that intakes, because a plurality of baffles 602 that intakes correspond with a plurality of interval baffle 502 positions, the position that makes water flow through after getting into is the static refrigerated position of material just, this can make the area of contact of cold water and material more accurate, thereby the realization carries out accurate even cooling to the material between a plurality of interval baffles 502, thereby realize better cooling effect, thereby circulative cooling.
The composite pipe machining system further comprises a wooden plug 603, and the wooden plugs 603 can be inserted into round holes formed in the water tanks 601.
In addition, as an example, as shown in fig. 2 and 9, this example solves the problem that the water tank 601 needs to be closed when the circulating water cannot be used for cooling,
when not having suitable sufficient water source to carry out circulative cooling, can let in cold water with water tank 601 and use wooden plug 603 to seal the hole on the water tank 601 behind the cold water to avoid rivers to go out, realize the closure to water tank 601, thereby can make this device use under different environment, strengthened the application scope of this device, thereby make this device use more extensively.
Claims (10)
1. A processing method of degradable plastics comprises the following steps
The method comprises the following steps: plasticizing the degradable plastic raw material;
step two: carrying out solid-liquid separation on the plasticized material;
step three: the liquid material is cooled.
2. The processing method of degradable plastics according to claim 1, characterized by that: a degradable plastic processing system is also used, the degradable plastic processing system comprises a reaction box (101) and a sliding bottom plate (204), and the sliding bottom plate (204) is connected in the reaction box (101) in a sliding mode.
3. The processing method of degradable plastics according to claim 2, characterized by that: the degradable plastic processing system further comprises a first motor (201), a gear I (202) and a rack (203), wherein the rack (203) is fixedly connected to a sliding bottom plate (204), the first motor (201) is fixedly connected to the reaction box (101), the gear I (202) is fixedly connected to an output shaft of the first motor (201), and the gear I (202) is meshed with the rack (203).
4. The processing method of degradable plastics according to claim 3, characterized by that: the degradable plastic processing system further comprises a rack protective shell (103), the rack protective shell (103) is fixedly connected in the reaction box (101), and the rack (203) can pass through the rack protective shell (103).
5. The processing method of degradable plastics according to claim 4, characterized by that: the degradable plastic processing system further comprises a filter plate (104), and the filter plate (104) is fixedly connected inside the reaction box (101).
6. The processing method of degradable plastics according to claim 5, characterized by that: the degradable plastic processing system further comprises a second motor (301), a lead screw (302) and a scraper (303), wherein the second motor (301) is fixedly connected to the outside of the reaction box (101), the lead screw (302) is fixedly connected to an output shaft of the second motor (301), a slide way is arranged on the outside of the reaction box (101), and the scraper (303) is connected to the lead screw (302) through a slide way thread.
7. The processing method of degradable plastics according to claim 6, characterized by that: the degradable plastic processing system further comprises scraping tips (306), and the scraping tips (306) are connected to the left side and the right side of the scraping plate (303) through screw threads.
8. The processing method of degradable plastics according to claim 7, characterized by that: the degradable plastic processing system further comprises two rotating baffles (304), and the two rotating baffles (304) are respectively connected to two sides of the scraper (303) in a rotating mode.
9. The processing method of degradable plastics according to claim 7, characterized by that: the degradable plastic processing system further comprises a plurality of contraction springs (305), one sides of the plurality of contraction springs (305) are fixedly connected to the scraping plate (303), and the other sides of the plurality of contraction springs (305) are fixedly connected to the two rotating baffle plates (304) respectively.
10. The degradable plastic prepared by the processing method of the degradable plastic according to claim 9, wherein the processing method comprises the following steps: the degradable plastic comprises the following raw materials in parts by weight: 20 parts of polyethylene, 50 parts of starch and 10 parts of polyvinyl chloride.
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| CN202110563217.3A CN113290739A (en) | 2021-05-24 | 2021-05-24 | Degradable plastic and preparation method thereof |
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| CN202110563217.3A CN113290739A (en) | 2021-05-24 | 2021-05-24 | Degradable plastic and preparation method thereof |
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