CN113491974A

CN113491974A - A material mixing device for low molecular weight polyethylene production

Info

Publication number: CN113491974A
Application number: CN202010261794.2A
Authority: CN
Inventors: 马红艳; 张雷; 朱海荣; 黄莉; 李茂才
Original assignee: Yangzhou Cobo New Material Co ltd
Current assignee: Yangzhou Cobo New Material Co ltd
Priority date: 2020-04-05
Filing date: 2020-04-05
Publication date: 2021-10-12

Abstract

The invention discloses a material mixing device for polyethylene wax production, which belongs to the technical field of polyethylene wax production and comprises a base, wherein a discharging pipe is arranged at the bottom of the outer wall of the right side of a mixing cylinder, a rotating motor is arranged on the left side of the joint of the outer wall of the top of the base and the mixing cylinder, a rotating rod is arranged at the power end of the top of the rotating motor, a gear is fixedly sleeved on the outer wall of the rotating rod, an outer gear ring is fixedly sleeved on the middle part of the outer wall of the mixing cylinder in the circumferential direction, and the right end of the gear is meshed with the left end of the outer gear ring. The servo motor drives the lead screw rotatory, make the lifter plate go up and down under the restriction of gag lever post, make bull stick and heliciform blade go up and down at the mixing drum inner chamber, the motor drives the bull stick and the heliciform blade is rotatory stirs the mixture to the material, make the material fully stirred, and rotating electrical machines drives the dwang, the gear is rotatory, the gear drives outer ring gear and mixing drum rotatory, the centrifugal force that the mixing drum rotation produced cooperates with rotatory heliciform blade, can improve the stirring effect to the material.

Description

A material mixing device for low molecular weight polyethylene production

Technical Field

The invention relates to the technical field of polyethylene wax production, in particular to a material mixing device for polyethylene wax production.

Background

Polyethylene wax (PE wax), also called high-molecular wax for short, is polyethylene wax, and there are two common production methods, namely, a cracking method and a byproduct in the polyethylene synthesis process, and the polymers (daqing, yanzi and yanshan polymer byproducts) need to be mixed before production, but the existing mixing method is to uniformly mix through a single stirrer, the mixing effect is poor, the time consumption is long, and therefore, a material mixing device for producing the polyethylene wax is provided.

Disclosure of Invention

The invention aims to provide a material mixing device for polyethylene wax production, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a material mixing device for polyethylene wax production comprises a base, wherein driving boxes are arranged on the left side and the right side of the outer wall of the top of the base, a servo motor is arranged on the inner wall of the bottom of the driving box, a lead screw is mounted at the power end of the top of the servo motor and is connected with the outer wall of the top of the driving box through a bearing, two groups of lead screw outer walls are in threaded sleeve connection with a lifting plate, a limiting rod is movably inserted into the left side and the right side of the joint of the outer wall of the top of the lifting plate and the lead screw, the bottom of the limiting rod is fixedly connected with the outer wall of the top of the driving box, a motor is arranged in the center of the outer wall of the bottom of the lifting plate, a rotating rod is mounted at the power end of the bottom of the motor, a spiral blade is arranged towards the top of the outer wall of the rotating rod, a mixing cylinder is movably arranged in the center of the outer wall of the top of the base, the spiral blade is positioned in the inner cavity of the mixing cylinder, a feeding hopper is arranged at the top of the outer wall on the left side of the mixing cylinder, mixing drum right side outer wall bottom is equipped with the discharging pipe, the rotating electrical machines is installed in the left side of base top outer wall and mixing drum junction, the dwang is installed to the rotating electrical machines top power end, the fixed cover of dwang outer wall is equipped with the gear, the fixed cover in mixing drum hoop outer wall middle part is equipped with outer ring gear, gear right-hand member and the meshing of outer ring gear left end.

Further, the feeder hopper is including installing the conveying pipeline at mixing drum left side outer wall, the hopper is installed to the left end of conveying pipeline, the welding of mixing drum left side outer wall and the bottom of conveying pipeline junction has the fixed plate, the fixed plate top is equipped with agitator motor, agitator motor top power end is installed the puddler in advance, the puddler top extends to the hopper inner chamber in advance, the outer wall that the puddler is located hopper inner chamber part in advance is equipped with the stirring leaf.

Further, the puddler has all been welded to the bottom of bull stick left and right sides outer wall, the one end that the bull stick was kept away from to puddler top outer wall is equipped with the slot, and the activity is pegged graft in the slot has the installation piece, and is two sets of the one end fixedly connected with scraper blade that the installation piece is carried on the back mutually, and is two sets of the laminating of one side and mixing drum inner wall that the scraper blade is carried on the back mutually, installation piece top is equipped with the fixed screw, just puddler top outer wall is equipped with the screw with fixed screw matched with.

Furthermore, the left side of the material conveying pipeline is higher than the right side, and the diameter of the left end of the material conveying pipeline is smaller than that of the right end of the material conveying pipeline.

Furthermore, inclined support rods are arranged at the tops of the outer walls of the two groups of scraper blades on the opposite sides, the opposite ends of the two groups of inclined support rods are fixed to the outer wall of the top of the mounting block, and the two groups of fixing screws are located on the inner sides of the two groups of inclined support rods.

Further, the volume of the hopper is one fourth to one third of the volume of the mixing cylinder.

Compared with the prior art, the invention has the beneficial effects that:

1. the servo motor drives the screw rod to rotate, so that the lifting plate is lifted under the limitation of the limiting rod, the rotating rod and the spiral blade are lifted in the inner cavity of the mixing barrel, the motor drives the rotating rod and the spiral blade to rotate to stir and mix materials, the materials are fully stirred, the rotating motor drives the rotating rod and the gear to rotate, the gear drives the outer gear ring and the mixing barrel to rotate, centrifugal force generated by the rotation of the mixing barrel is matched with the rotating spiral blade, and the stirring effect on the materials can be improved;

2. the material needs to get into the mixing drum through the hopper, the volume of hopper is less, generally need add twice material in to the hopper when mixing, the time interval control of dumping the material twice is in three to five minutes, the material that gets into the hopper inner chamber carries out the initial mixing under the stirring of puddler and stirring leaf in advance, treat the material initial mixing back of hopper inner chamber, open the material pipeline's valve and pour into the mixing drum of initial mixing in and mix once more to this improves mixing effect.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the feed hopper of the present invention;

FIG. 3 is a schematic view of the connection between the rotating rod and the stirring rod according to the present invention.

In the figure: 1. a base; 2. a drive box; 3. a servo motor; 4. a screw rod; 5. a limiting rod; 6. a lifting plate; 7. a motor; 8. a rotating rod; 9. a helical blade; 10. a mixing drum; 11. a feed hopper; 12. a discharge pipe; 13. a rotating electric machine; 14. rotating the rod; 15. a gear; 16. an outer ring gear; 17. a delivery pipeline; 18. a hopper; 19. stirring blades; 20. a stirring rod; 21. mounting blocks; 22. a squeegee; 23. a diagonal brace; 24. fixing screws; 25. a stirring motor; 26. a pre-stir bar; 27. and (7) fixing the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a technical scheme that: a material mixing device for polyethylene wax production, please refer to figure 1, which comprises a base 1, wherein driving boxes 2 are arranged on the left and right sides of the outer wall of the top of the base 1, a servo motor 3 is arranged on the inner wall of the bottom of the driving box 2, a screw rod 4 is arranged at the power end of the top of the servo motor 3, the screw rod 4 is connected with the outer wall of the top of the driving box 2 through a bearing, lifting plates 6 are sleeved on the outer walls of the two groups of screw rods 4 through threads, limiting rods 5 are movably inserted on the left and right sides of the joint of the outer wall of the top of the lifting plate 6 and the screw rod 4, the bottom of the limiting rod 5 is fixedly connected with the outer wall of the top of the driving box 2, the servo motor 3 drives the screw rod 4 to rotate, so that the lifting plates 6 lift under the limitation of the limiting rods 5, a rotating rod 8 and a spiral blade 9 lift in an inner cavity of a mixing cylinder 10, a rubber ball is arranged at the bottom of the rotating rod 8 through a rotary connecting piece, thereby reducing the impact force of the rotating rod 8 on the inner wall of the mixing cylinder 10, the motor 7 drives the rotating rod 8 and the spiral blade 9 to rotate to stir and mix the materials, so that the materials are fully stirred, the motor 7 is arranged at the center of the outer wall at the bottom of the lifting plate 6, the rotating rod 8 is installed at the power end at the bottom of the motor 7, the spiral blade 9 is arranged at the annular top of the outer wall of the rotating rod 8, the mixing cylinder 10 is movably arranged at the center of the outer wall at the top of the base 1, the spiral blade 9 is positioned in the inner cavity of the mixing cylinder 10, the feeding hopper 11 is arranged at the top of the outer wall at the left side of the mixing cylinder 10, the discharging pipe 12 is arranged at the bottom of the outer wall at the right side of the mixing cylinder 10, the materials after stirring and mixing are discharged through the discharging pipe 12, the rotating motor 13 is installed at the left side of the joint of the outer wall at the top of the base 1 and the mixing cylinder 10, the rotating rod 14 is installed at the power end at the top of the rotating motor 13, the rotating motor 13 drives the rotating rod 14 and the gear 15 to rotate, the gear 15 drives the outer gear ring 16 and the mixing cylinder 10 to rotate, and the centrifugal force generated by the rotation of the mixing cylinder 10 is matched with the spiral blade 9, the stirring effect on materials can be improved, the rotating direction of the mixing drum 10 is opposite to that of the rotating rod 8, the mixing effect of the materials can be further improved, a gear 15 is fixedly sleeved on the outer wall of the rotating rod 14, an outer gear ring 16 is fixedly sleeved on the middle of the outer wall of the mixing drum 10 in the circumferential direction, the right end of the gear 15 is meshed with the left end of the outer gear ring 16, and the servo motor 3, the motor 7 and the rotating motor 13 are all powered by an external power supply;

referring to fig. 2, the feeding hopper 11 includes a material conveying pipeline 17 installed on the outer wall of the left side of the mixing cylinder 10, a hopper 18 is installed at the left end of the material conveying pipeline 17, a fixing plate 27 is welded at the bottom of the joint of the outer wall of the left side of the mixing cylinder 10 and the material conveying pipeline 17, a storage battery is installed at the rear side of the joint of the fixing plate 27 and the stirring motor 25 to supply power to the stirring motor 25, the stirring motor 25 is installed at the top of the fixing plate 27, a pre-stirring rod 26 is installed at the power end of the top of the stirring motor 25, the stirring motor 25 drives the pre-stirring rod 26 and the stirring blades 19 to rotate, the top of the pre-stirring rod 26 extends to the inner cavity of the hopper 18, the stirring blades 19 are installed on the outer wall of the inner cavity portion of the pre-stirring rod 26 located in the hopper 18, the material enters the mixing cylinder 10 through the hopper 18, the material entering the inner cavity of the hopper 18 is primarily mixed under the stirring action of the pre-stirring rod 26 and the stirring blades 19, a valve of the material conveying pipeline 17 is opened after a period of time to pour the primarily mixed material into the mixing cylinder 10 for secondary mixing, by mixing efficiency and effect;

referring to fig. 3, the bottom of the outer walls of the left side and the right side of the rotating rod 8 are welded with stirring rods 20, one end of the outer wall of the top of each stirring rod 20, which is far away from the rotating rod 8, is provided with a slot, mounting blocks 21 are movably inserted in the slots, one end of each of the two sets of mounting blocks 21, which is opposite to the other end, is fixedly connected with a scraper 22, the rotating rod 8 drives the stirring rods 20 and the scrapers 22 to rotate, the materials attached to the inner wall can be scraped while the materials are stirred, one sides of the two sets of scrapers 22, which are opposite to the other sides, are attached to the inner wall of the mixing cylinder 10, the top of each mounting block 21 is provided with a fixing screw 24, the outer wall of the top of each stirring rod 20 is provided with a screw hole matched with the fixing screw 24, the extending lengths of the two sets of scrapers 22 can be adjusted according to the diameter of the inner wall of the mixing cylinder 10, and can be adjusted after being used for a period of time, so as to reduce the influence of the scrapers 22 on the scraping of the materials on the scraping of the inner wall;

referring to fig. 2, the material delivery pipe 17 is obliquely arranged in a high right and low left direction, and the diameter of the left end of the material delivery pipe 17 is smaller than that of the right end, so that materials can rapidly enter the mixing cylinder 10 through the material delivery pipe 17;

referring to fig. 3, inclined struts 23 are respectively disposed at the tops of the outer walls of the two sets of scrapers 22 opposite to each other, opposite ends of the two sets of inclined struts 23 are fixed to the outer wall of the top of the mounting block 21, and two sets of fixing screws 24 are disposed inside the two sets of inclined struts 23, the inclined struts 23 mainly function to support the scrapers 22, so as to prevent the scrapers 22 from being scratched on the inner wall of the mixing cylinder 10 due to uneven stress;

referring to fig. 1-2, the volume of the hopper 18 is one fourth to one third of the volume of the mixing cylinder 10, the volume of the hopper 18 is small, two times of materials are generally required to be added into the hopper 18 during mixing, the time interval for two times of material pouring is controlled to be three to five minutes, after the materials in the inner cavity of the hopper 18 are primarily mixed, the materials are secondarily poured, after the materials are primarily mixed, the valve of the material conveying pipeline 17 is opened to convey the materials into the inner cavity of the mixing cylinder 10 to be mixed again, the materials after two times of pouring account for two thirds of the volume of the mixing cylinder 10, and the materials in the inner cavity of the mixing cylinder 10 are too high and are easy to overflow during stirring.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a material mixing device for polyethylene wax production, includes base (1), its characterized in that: the automatic feeding device is characterized in that driving boxes (2) are arranged on the left side and the right side of the outer wall of the top of the base (1), servo motors (3) are arranged on the inner wall of the bottom of each driving box (2), lead screws (4) are mounted at the power end of the top of each servo motor (3), the lead screws (4) are connected with the outer wall of the top of the driving box (2) through bearings, lifting plates (6) are sleeved on the outer wall of the two groups of lead screws (4) in a threaded manner, limiting rods (5) are movably inserted into the left side and the right side of the joint of the outer wall of the top of each lifting plate (6) and the corresponding lead screw (4), the bottoms of the limiting rods (5) are fixedly connected with the outer wall of the top of the driving box (2), a motor (7) is arranged at the center of the outer wall of the bottom of each lifting plate (6), rotating rods (8) are mounted at the power end of the bottom of the motor (7), spiral blades (9) are arranged at the top of the circumferential outer wall of the rotating rods (8), a mixing barrel (10) is movably arranged at the center of the outer wall of the top of the base (1), heliciform blade (9) are located mixing drum (10) inner chamber, mixing drum (10) left side outer wall top is equipped with feeder hopper (11), mixing drum (10) right side outer wall bottom is equipped with discharging pipe (12), rotating electrical machines (13) are installed in the left side of base (1) top outer wall and mixing drum (10) junction, dwang (14) are installed to rotating electrical machines (13) top power end, the fixed cover of dwang (14) outer wall is equipped with gear (15), the fixed cover in mixing drum (10) hoop outer wall middle part is equipped with outer ring gear (16), gear (15) right-hand member and outer ring gear (16) left end meshing.

2. The material mixing device for polyethylene wax production according to claim 1, wherein: feeder hopper (11) are including installing conveying pipeline (17) at mixing drum (10) left side outer wall, hopper (18) are installed to the left end of conveying pipeline (17), the bottom welding of mixing drum (10) left side outer wall and conveying pipeline (17) junction has fixed plate (27), fixed plate (27) top is equipped with agitator motor (25), agitator motor (25) top power end is installed puddler (26) in advance, puddler (26) top extends to hopper (18) inner chamber in advance, puddler (26) in advance are located hopper (18) inner chamber part's outer wall and are equipped with stirring leaf (19).

3. The material mixing device for polyethylene wax production according to claim 1, wherein: puddler (20) have all been welded to the bottom of bull stick (8) left and right sides outer wall, the one end that bull stick (8) were kept away from to puddler (20) top outer wall is equipped with the slot, and the slot internalization is pegged graft and is had installation piece (21), and is two sets of installation piece (21) one end fixedly connected with scraper blade (22) mutually carry on the back mutually, and is two sets of scraper blade (22) carry on the back mutually one side and mixing drum (10) inner wall laminating, installation piece (21) top is equipped with fixed screw (24), just puddler (20) top outer wall is equipped with the screw with fixed screw (24) matched with.

4. The material mixing device for polyethylene wax production according to claim 2, characterized in that: the material conveying pipeline (17) is obliquely arranged in a high-right mode, and the diameter of the left end of the material conveying pipeline (17) is smaller than that of the right end of the material conveying pipeline.

5. The material mixing device for polyethylene wax production according to claim 3, wherein: inclined support rods (23) are arranged at the tops of the outer walls of the two groups of scraping plates (22) on the opposite sides, the opposite ends of the two groups of inclined support rods (23) are fixed to the outer wall of the top of the mounting block (21), and the two groups of fixing screws (24) are located on the inner sides of the two groups of inclined support rods (23).

6. The material mixing device for polyethylene wax production according to claim 2, characterized in that: the volume of the hopper (18) is one fourth to one third of the volume of the mixing cylinder (10).