CN108501168B - Production process of plastic-wood park seat - Google Patents
Production process of plastic-wood park seat Download PDFInfo
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- CN108501168B CN108501168B CN201810402232.8A CN201810402232A CN108501168B CN 108501168 B CN108501168 B CN 108501168B CN 201810402232 A CN201810402232 A CN 201810402232A CN 108501168 B CN108501168 B CN 108501168B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
- B01F33/401—Methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/20—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
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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
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
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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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/085—Copper
-
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0856—Iron
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Forests & Forestry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The application relates to the technical field of composite materials, and particularly discloses a production process of a plastic-wood park seat, which comprises the following steps: weighing the following raw materials in parts by weight: 100 parts of wood powder, 35-55 parts of plastic particles, 3-6 parts of lubricant, 8-14 parts of antioxidant, 5-10 parts of light stabilizer, 9-15 parts of maleic anhydride grafted plastic particles and 2-5 parts of metal particles; (2) Mixing wood powder, plastic particles, maleic anhydride grafted plastic particles and a light stabilizer by using an airflow mixer; (3) Melting and extruding the mixture through a double-screw extruder, cooling and pelletizing to obtain plastic-wood composite material granules; (4) Adding the plastic-wood composite material granules, the metal particles and the lubricant into an air flow mixer and uniformly mixing; (5) Adding the mixture into an extruder for melting, and performing extrusion molding to obtain the anti-aging plastic-wood composite material; and (6) forming the aging-resistant plastic-wood composite material into the seat. The process can obtain the seat with strong aging resistance by uniformly mixing the raw materials.
Description
Technical Field
The invention relates to the technical field of composite materials, in particular to a production process of a plastic-wood park seat.
Background
The plastic-wood composite material is prepared by using thermoplastic plastics including polyethylene, polypropylene, polystyrene and copolymers thereof as matrix materials, using waste natural fibers such as wood flour, rice hulls, wheat straws, corn stalks, peanut shells and the like as reinforcing phases, adding a small amount of chemical additives and fillers, and processing the materials by a certain processing technology. It has the main advantages of thermoplastic polymer and wood, has the advantages of corrosion resistance, moisture resistance, moth prevention, high dimensional stability, no cracking, no warping and the like, and can be widely used as outdoor floors, swimming pool edge covers, flower boxes, tree pools, fence, garbage cans, sun visors, stools, chair strips, backrest strips, leisure table tops, indication boards, publicity columns, cross beams, wharf planks, water channels, handrails, guardrails, fences, partitions, flower stands, outdoor pavilions, outdoor platforms, bathroom boards, door and window frame sleeves, sound absorption boards, top boards and the like. Even then, the plastic-wood composite material has some obvious defects in the using process, such as the long-term use, especially the open-air use, the aging phenomena such as cracking, fading and the like are easy to occur under the action of light and oxygen, thereby shortening the service life and limiting the application range. Therefore, it is necessary to modify the traditional plastic-wood composite material to improve the aging resistance thereof. Particularly, for the plastic wood seat arranged in the park, the aging resistance of the plastic wood seat is required to be improved due to long-term exposure.
Disclosure of Invention
The invention aims to provide an anti-aging plastic-wood park seat.
In order to achieve the above purpose, the basic scheme of the invention is as follows:
the production process of the plastic-wood park seat comprises the following steps:
(1) Weighing the following raw materials in parts by weight: 100 parts of wood powder, 35-55 parts of plastic particles, 3-6 parts of lubricant, 8-14 parts of antioxidant, 5-10 parts of light stabilizer, 9-15 parts of maleic anhydride grafted plastic particles and 2-5 parts of metal particles;
(2) Mixing the wood powder, the plastic particles, the maleic anhydride grafted plastic particles and the light stabilizer weighed in the step (1) by adopting an airflow mixer, blowing the raw materials to move randomly by using airflow so as to uniformly mix the raw materials, and controlling the temperature of the airflow to be 90-110 ℃;
(3) Melting and extruding the mixture obtained in the step (2) through a double-screw extruder, and cooling and pelletizing to obtain plastic-wood composite material granules;
(4) Adding the plastic-wood composite material granules, the metal particles and the lubricating agent into an air flow mixer for uniformly mixing;
(5) Adding the mixture obtained in the step (4) into an extruder for melting, and performing extrusion molding through a die head to obtain the anti-aging plastic-wood composite material;
(6) And (5) forming the aging-resistant plastic-wood composite material obtained in the step (5) into a seat.
The beneficial effect that this scheme produced is:
(one) mix each material through the air current in above step, form the random motion of granule that the turbulent flow drove each material through the air current, and each material is beated or is the suspended state under the influence of air current to can reduce the mutual influence between each material granule, compare in the stirring and mix, more be favorable to the homogeneous mixing of material, make the quality of the wood-plastic seat chair that obtains improve, and because the collocation of its raw materials, ageing resistance strengthens.
And (II) in the step (2), the temperature of the air flow is controlled to be 90-110 ℃, the space where the materials are located can be in a dry state, and the materials mixed in the step (2) are all insulating materials, so that the particles of the materials are very easy to charge under the mutual impact of the materials. When the material granule floated highly along with the air current, the air current velocity of flow also slowed down to the material will adsorb on the lateral wall in compounding space, avoids it to float to the workspace and causes the pollution of workplace.
And (III) in the step (4), as the plastic-wood composite material granules are prepared by cutting granules in the step (3), the granules have larger particle size, the mass of the granules is larger, and the mass of the metal particles is larger, so that the lifting height of the metal particles is not high under the influence of airflow, and the materials are not easy to float to a working space in the airflow mixing process to cause pollution to the working space.
The first preferred scheme is as follows: as a further optimization of the basic scheme, the temperature of the cylinder of the double-screw extruder in the step (3) is controlled to be 155-200 ℃, and the temperature of the die head is controlled to be 165-205 ℃; the molding quality can be better by controlling the temperature of the twin-screw extruder.
The preferred scheme II is as follows: as a further optimization of the first preferred scheme, the temperature of the barrel of the extruder in the step (5) is controlled to be 160-200 ℃, and the temperature of the die head is controlled to be 170-210 ℃; by controlling the temperature of the extruder, the obtained plastic-wood material can be better in anti-aging formation.
The preferable scheme is three: as a further optimization of the preferable scheme II, the grain size of the wood flour is 100-120 meshes; the wood powder with too large grain size can reduce the toughness of the obtained plastic-wood material, while the wood powder with too small grain size can easily diffuse into the surrounding working environment along with air flow in the mixing process.
The preferable scheme is four: as a further optimization of the third preferred embodiment, the metal particles are copper powder or iron powder, and the particle size of the metal particles is 80-100 meshes; because the metal particles are not charged with static electricity, the particle size and the mass of the metal particles are properly increased, and the metal particles can be prevented from being blown out along with the airflow. And the appearance of the obtained plastic-wood material is affected by the excessive grain size.
The preferable scheme is five: as a further optimization of the preferable scheme four, the particle size of the plastic-wood composite material obtained in the step (3) is 1-2mm; so as to ensure the fluidity in the air flow and avoid the air flow from diffusing into the surrounding working environment.
Drawings
FIG. 1 is a schematic view of a jet mixer according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail below by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a mixing barrel 10, an air pipe 20, an inlet section 21, a throat 22, a diffusion section 23, a material suction hole 24, a blower 30, an electric heating wire 31, a material cavity 40, a feeding pipe 41, an adsorption barrel 50, an exhaust channel 51 and an opening 52.
The production process of the plastic-wood park seat comprises the following steps
(1) Weighing the following raw materials in parts by weight: 100 parts of wood powder, 45 parts of plastic particles, 5 parts of lubricant, 12 parts of antioxidant, 8 parts of light stabilizer, 12 parts of maleic anhydride grafted plastic particles and 4 parts of metal particles.
(2) Mixing the wood powder, the plastic particles, the maleic anhydride grafted plastic particles and the light stabilizer weighed in the step (1) by using an airflow mixer, blowing the raw materials by airflow to move irregularly so as to uniformly mix the raw materials, and controlling the temperature of the airflow to be 90-110 ℃.
(3) And (3) melting and extruding the mixture obtained in the step (2) through a double-screw extruder, cooling and pelletizing to obtain plastic-wood composite material granules, wherein the particle size of the plastic-wood composite material granules is controlled to be 1-2mm, the temperature of a machine barrel of the double-screw extruder is controlled to be 155-200 ℃, and the temperature of a die head is controlled to be 165-205 ℃.
(4) Adding the plastic-wood composite material granules, the metal particles and the lubricant into an air flow mixer and uniformly mixing; wherein the metal particles are copper powder or iron powder.
(5) Adding the mixture obtained in the step (4) into an extruder for melting, and performing extrusion molding through a die head to obtain the anti-aging plastic-wood composite material; the temperature of the barrel of the extruder is controlled between 160 and 200 ℃, and the temperature of the die head is controlled between 170 and 210 ℃.
(6) And (5) forming the aging-resistant plastic-wood composite material obtained in the step (5) into a seat.
As shown in FIG. 1, the air flow mixer used in the above step includes a mixing barrel 10 and an air duct 20 provided in the middle of the mixing barrel 10. The middle part of the air pipe 20 is recessed inwards to form a throat part 22, so that the cross-sectional area of the throat part 22 is smaller than that of the two ends of the air pipe 20; i.e. a venturi structure having an air duct 20 consisting of an inlet section 21, a throat 22 and a diffuser section 23 from top to bottom. The top of the air pipe 20 is provided with a blower 30, and an air outlet of the blower 30 is communicated with the inlet section 21; when the blower 30 blows air into the inlet section 21, an air flow is formed in the air duct 20, which passes through the inlet section 21, the throat 22 and the diffuser section 23 in sequence, and finally is discharged into the mixing bowl 10. When the air flow passes through the throat 22, the throat 22 has a compression effect on the air flow due to the smaller cross section of the throat 22, so that the flow velocity of the air flow passing through the throat 22 is increased, and thus the pressure at the throat 22 is reduced. The throat 22 and diffuser section 23 of the air duct 20 are both located within the mixing bowl 10, while the inlet section 21 of the air duct 20 extends out of the mixing bowl 10. The periphery of the inlet section 21 of the air pipe 20 is provided with a material cavity 40, and the material cavity 40 is divided into a plurality of independent cavities to contain a plurality of different materials. The bottom of each chamber is communicated with the throat part 22 through a feeding pipe 41, and in addition, the side wall of the throat part 22 is also provided with a material sucking hole 24 for communicating the mixing barrel 10 with the throat part 22.
Materials to be mixed are filled in each cavity of the material cavity 40, after the blower 30 is started, airflow is formed in the air pipe 20, negative pressure is formed in the throat 22, and therefore the materials in each cavity are sucked into the throat 22 and enter the mixing barrel 10 from the diffusion section 23 along with the airflow; the air streams impinge on the side walls of the mixing bowl 10 to create turbulence within the mixing bowl 10 so that the materials move randomly within the mixing bowl 10 to achieve mixing of the materials. In addition, since the throat 22 forms a negative pressure, an air flow flowing from the mixing bowl 10 to the throat 22 will also be formed in the material suction hole 24, so that part of the material in the mixing bowl 10 will be sucked into the throat 22 and then discharged into the mixing bowl 10 from the diffuser 23 again; so that the materials circulate in the mixing barrel 10 to promote the rapid mixing of the materials.
The upper portion of compounding bucket 10 is equipped with an adsorption cylinder 50, and an adsorption cylinder 50 encircles the periphery in material chamber 40, is exhaust passage 51 between an adsorption cylinder 50 and the material chamber 40 outer wall. The lower end of the adsorption cylinder 50 is contracted toward the middle to reduce the opening 52 communicating the air discharge passage 51 with the adsorption cylinder 50, so that after the air flow enters the air discharge passage 51 from the mixing bowl 10 through the opening 52, the flow speed of the air flow in the air discharge passage 51 becomes slow due to the entrance into a larger space through a smaller opening 52.
The mixing barrel 10 is made of ceramic, and the side walls of the adsorption barrel and the material cavity 40 are made of aluminum alloy; the adsorption barrel is connected with the positive pole of a direct current power supply, and the side wall of the material cavity 40 is connected with the negative pole of the direct current power supply. When the direct current power supply is switched on, an electric field is generated between the adsorption cylinder 50 and the side wall of the material cavity 40, so that air is ionized and negative ions are generated; when the air current was discharged into exhaust passage 51 from opening 52, will take out partial material dust simultaneously, when the material dust got into exhaust passage 51, the anion will be adsorbed on the material dust to the material dust will be to the lateral wall motion of adsorbing the bucket and adsorb on adsorbing the bucket, avoids dust to run out and pollutes operational environment.
In addition, the air outlet of the blower 30 is provided with the heating wire 31, and after the blower 30 is started, the heating wire 31 is connected with a power supply, so that hot air can be formed in the air channel. In the step (2), the temperature of the air flow is controlled to be 90-110 ℃, so that a drying space is formed in the mixing barrel 10, and the materials mixed in the step (2) are all insulating materials, so that the surfaces of the materials are more easily electrified in the process of mutual collision during mixing, and the materials are more easily adsorbed on the adsorption barrel 50 after entering the exhaust channel 51 along with the air flow. And the lower end of the adsorption cylinder 50 is contracted towards the middle part to reduce an opening 52 communicating the exhaust channel 51 with the adsorption cylinder 50, and the adsorption cylinder has certain blocking effect on materials when air flow is discharged from the mixing barrel 10, so that the materials entering the exhaust channel 51 can be reduced.
In the step (4), mainly the plastic-wood composite material granules and the metal particles are mixed, and in the step, the particle size of the mixed plastic-wood composite material is controlled to be 1-2mm, and the particle size of the metal particles is controlled to be 80-100 meshes. Since the particle size of the mixed plastic-wood composite material is large, and the mass of the metal particles is large, the height which can be raised under the influence of the air flow is not high, so that in the mixing process of the step (4), the material discharged from the opening 52 along with the air flow is very little.
In the above step, the specific operation process in the step (2) is that wood powder, plastic particles, maleic anhydride grafted plastic particles, light stabilizer and antistatic agent are respectively added into each chamber of the material cavity 40, the electric heating wire 31 is powered on, and simultaneously the direct current power supply connecting the adsorption cylinder 50 and the side wall of the material cavity 40 is turned on; after the heating wire 31 heats the surrounding air to 100 ℃, the fan is started to start mixing, and after 15-20 minutes of mixing, the fan is turned off and all power supplies are cut off.
The specific operation process of the step (4) is that the plastic-wood composite material granules, the copper particles and the lubricant are respectively added into each cavity of the material cavity 40, then the fan is started, and the fan is closed after the materials are mixed for 20-30 minutes.
Through foretell air current mixer carries out the compounding, because the air current can make the material move at random, and can form the suspended state under the influence of air current to can reduce the interact between each granule, be favorable to quick even mixed material. Because wood flour, metal particles and the like in the plastic wood material have no self-adhesion property, if the raw materials are not uniformly stirred, the content of the wood flour or the metal particles in partial areas is high, so that the parts are easy to damage, and the wood flour and the metal particles in the parts are quickly oxidized, thereby accelerating the aging of the material. By improving the uniformity of the raw material mixing, the plastic-wood material with better performance is obtained, so that the ageing resistance of the plastic-wood seat is enhanced.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several variations and modifications can be made, which should also be considered as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the utility of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. A production process of a plastic-wood park seat is characterized by comprising the following steps:
(1) Weighing the following raw materials in parts by weight: 100 parts of wood powder, 35-55 parts of plastic particles, 3-6 parts of lubricant, 8-14 parts of antioxidant, 5-10 parts of light stabilizer, 9-15 parts of maleic anhydride grafted plastic particles and 2-5 parts of metal particles;
(2) Mixing the wood powder, the plastic particles, the maleic anhydride grafted plastic particles and the light stabilizer weighed in the step (1) by adopting an airflow mixer, blowing the raw materials to move randomly by using airflow so as to uniformly mix the raw materials, and controlling the temperature of the airflow to be 90-110 ℃;
(3) Melting and extruding the mixture obtained in the step (2) through a double-screw extruder, and cooling and pelletizing to obtain plastic-wood composite material granules;
(4) Adding the plastic-wood composite material granules, the metal particles and the lubricant into an air flow mixer and uniformly mixing;
(5) Adding the mixture obtained in the step (4) into an extruder for melting, and performing extrusion molding through a die head to obtain the anti-aging plastic-wood composite material;
(6) Forming the aging-resistant plastic-wood composite material obtained in the step (5) into a seat;
the air flow mixer comprises a mixing barrel and an air pipe arranged in the middle of the mixing barrel; the middle part of the air pipe is inwards sunken to form a throat part, so that the cross sectional area of the throat part is smaller than that of the two ends of the air pipe, the air pipe is of a Venturi tube structure consisting of an inlet section, the throat part and a diffusion section from top to bottom, and the throat part is positioned in the mixing barrel; the top of the air pipe is provided with an air blower, the air blower is arranged outside the mixing barrel, an air outlet of the air blower is communicated with an inlet section of the air pipe, a material cavity is arranged on the periphery of the air pipe and is divided into a plurality of independent cavities, the material cavity is positioned between the air blower and the throat part, each cavity of the material cavity is communicated with the throat part through an inlet pipe, and the side wall of the throat part is provided with a material sucking hole communicated with the mixing barrel and the throat part; an adsorption cylinder is arranged at the upper part of the mixing barrel, the adsorption cylinder surrounds the periphery of the material cavity, and an exhaust channel is arranged between the adsorption cylinder and the outer wall of the material cavity; the lower end of the adsorption cylinder shrinks towards the middle part to form an opening for communicating the exhaust channel and the adsorption cylinder; the mixing barrel is made of ceramic, and the side walls of the adsorption barrel and the material cavity are made of aluminum alloy; the adsorption barrel is connected with the positive pole of the direct current power supply, and the side wall of the material cavity is connected with the negative pole of the direct current power supply;
filling the materials to be mixed in the step (2) into each cavity of the material cavity, starting the blower, forming airflow in the air pipe, forming negative pressure in the throat part, sucking the materials in each cavity into the throat part and entering the mixing barrel together with the airflow from the diffusion section; the air flow collides with the side wall of the mixing barrel to form turbulent flow in the mixing barrel, and all materials move irregularly in the mixing barrel to mix the materials; the negative pressure of throat part makes and inhales the downthehole air current that forms from mixing barrel to throat part flow, and partial material in the mixing barrel is inhaled the throat, discharges into in the mixing barrel from the diffuser once more, forms the material and circulates in the mixing barrel.
2. The process of claim 1, wherein the steps of: the temperature of the cylinder of the double-screw extruder in the step (3) is controlled to be 155-200 ℃, and the temperature of the die head is controlled to be 165-205 ℃.
3. The process of claim 2, wherein the steps of: the temperature of the barrel of the extruder in the step (5) is controlled to be 160-200 ℃, and the temperature of the die head is controlled to be 170-210 ℃.
4. The process of claim 3, wherein the steps of: the grain size of the wood powder is 100-120 meshes.
5. A process of producing a PLANT SEAT, as claimed in claim 4, wherein: the metal particles are copper powder or iron powder, and the particle size of the metal particles is 80-100 meshes.
6. The process of claim 5, wherein the steps of: the particle size of the plastic-wood composite material obtained in the step (3) is 1-2mm.
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| CN201810402232.8A CN108501168B (en) | 2018-04-28 | 2018-04-28 | Production process of plastic-wood park seat |
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| CN201810402232.8A CN108501168B (en) | 2018-04-28 | 2018-04-28 | Production process of plastic-wood park seat |
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| CN108501168B true CN108501168B (en) | 2023-03-24 |
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| CH559060A5 (en) * | 1973-12-21 | 1975-02-28 | Mueller Hans Maennedorf | Aerator for aerobic fermentation - permits larger amts. of gas to be dispersed than previously |
| DE102010025501A1 (en) * | 2010-06-29 | 2011-12-29 | Kraussmaffei Technologies Gmbh | Spray nozzle for metering substances into a reactive mixture |
| CN202438287U (en) * | 2012-02-29 | 2012-09-19 | 刘妍 | Airflow agitation machine |
| CN104672939A (en) * | 2013-11-27 | 2015-06-03 | 辽宁辽杰科技有限公司 | Antistatic anti-aging plastic-wood composite material board and preparation method thereof |
| US10188996B2 (en) * | 2015-10-02 | 2019-01-29 | Adamis Pharmaceuticals Corporation | Powder mixing apparatus and method of use |
| CN105289364A (en) * | 2015-11-23 | 2016-02-03 | 梁锋 | Powder mixer |
| CN206715843U (en) * | 2017-05-09 | 2017-12-08 | 江阴市豪亚机械制造有限公司 | Airflow mixer |
| CN206937684U (en) * | 2017-06-29 | 2018-01-30 | 滁州麦迪尔塑胶有限公司 | A kind of modifying plastics high-speed mixer |
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