CN114953258A

CN114953258A - Method and apparatus for sorting plastic, and method for producing recycled plastic

Info

Publication number: CN114953258A
Application number: CN202210518571.9A
Authority: CN
Inventors: 杨传荣; 杨雪亮; 董豪; 姜永俊
Original assignee: Anhui Huanjia Tianyi Renewable Resources Co ltd
Current assignee: Anhui Huanjia Tianyi Renewable Resources Co ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2022-08-30
Anticipated expiration: 2042-05-12
Also published as: CN114953258B

Abstract

The invention discloses a plastic selecting method, a selecting device and a manufacturing method of recycled plastic, and particularly relates to the technical field of plastic selection, and the method comprises the following specific steps: step one, after crushing treatment by a crusher, plastic particles enter a specific gravity box from a conveying port, and standing and layering are realized through the wet specific gravity of specific gravity liquid in the specific gravity box. According to the invention, plastic particles are layered in a wet type specific gravity manner in the specific gravity box, the shielding cover blocks the placing vessel, the mixing of plastic particles with different specific gravities is avoided, the specific gravity screening quality is improved, the possibility that the plastic particles fall in the transferring process is reduced, the pushing cylinder drives the transmission rod and drives the three connecting rods, the placing vessel and the pressing plate are turned over, the plastic particles in the placing vessel are convenient to discharge, the packing auger drives the plastic particles with corresponding specific gravities to move, the plastic particles are dried in the conveying process of hot air, and fall onto the corresponding conveying belt through the discharge port, the plastic particles are convenient to enter the next process, and the automation degree is higher.

Description

Method and apparatus for sorting plastic, and method for producing recycled plastic

Technical Field

The invention relates to the technical field of plastic sorting, in particular to a sorting method and a sorting device for plastics and a manufacturing method for recycled plastics.

Background

At present, a mixed plastic sheet group mixed with a plurality of types of plastic sheets can be selected according to wet specific gravities with different specific gravities according to the types of plastics, some plastic products can be processed, manufactured and reused after being recovered, and plastic bottles are firstly classified, and then are classified to be processed, cleaned, subjected to label removal, selected, crushed, separated and the like, so that the plastic bottles become raw materials again for recycling, and the utilization efficiency is improved.

At present, waste plastic is selected basically by manual resolution, the manual efficiency is low, time and labor are wasted, the manual work burden is increased, the labor cost is high, large-scale popularization and use are not facilitated, certain limitation exists in the selection of the waste plastic, the waste plastic is randomly discarded after the use is finished, and the waste of plastic resources is caused when the environment is polluted.

Disclosure of Invention

The invention aims to provide a sorting method and a sorting device for plastic and a manufacturing method for recycled plastic.

The technical problem solved by the invention is as follows: the existing waste plastic selection has the problems of low efficiency, time and labor waste, and has certain limitation on the recycling of waste plastics.

The invention can be realized by the following technical scheme: the plastic selecting method comprises the following specific steps:

step one, after crushing treatment by a crusher, plastic particles enter a specific gravity box from a conveying port, and standing and layering are realized through the wet specific gravity of specific gravity liquid in the specific gravity box;

step two, through the transmission of the sliding seat, the three placing dishes are matched with the corresponding three discharge ports, the placing dishes are driven by the electric push rod to enter the corresponding discharge ports, and after the placing dishes are filled, the waterproof motor drives the shielding cover to rotate, so that the notches of the placing dishes are closed;

and step three, after the selection is finished, the three placing dishes are conveyed to the corresponding material guide openings through the sliding seat, the shielding cover is driven to be opened in a reverse direction by the waterproof motor, the connecting rod drives the placing dishes and the pressing plate to deflect by the aid of the telescopic pulling transmission rod of the pushing cylinder, and plastic particles in the placing dishes drop to the corresponding material guide openings.

The invention has further technical improvements that: in the initial state, the shielding cover and the placing vessel are in an open state.

The invention provides a plastic selecting device which comprises a crusher, wherein a specific gravity box is arranged below the crusher, a fixed plate is connected to one side of the bottom of the crusher, a water level line is arranged on the front surface of the specific gravity box, a conveying opening is formed in the top end surface of the specific gravity box, and a discharge opening is formed in the position, close to the edge, of the top end surface of the specific gravity box.

The invention has further technical improvements that: the bottom of breaker and fixed plate is provided with no pole cylinder jointly, the surface mounting of no pole cylinder has the slide, electric putter is installed to the bottom of slide, electric putter's flexible end fixedly connected with clamp plate.

The invention has further technical improvements that: the top of clamp plate is provided with the transfer line, one side of transfer line is provided with the promotion cylinder, and the one end swing joint of transfer line has the connecting rod of being connected with the clamp plate rotation, the end of connecting rod passes clamp plate and fixedly connected with and places the ware.

The invention has further technical improvements that: place the breach department of ware top one side and install the screening cover, the screening cover all is equipped with a plurality of weeping holes with the surface of placing the ware, and the screening cover is installed with the junction of placing the ware and is used for driving screening cover pivoted waterproof motor.

The invention has further technical improvements that: the utility model discloses a conveying chamber, including conveying chamber, auger, supporting plate and discharge gate, one side laminating of proportion case is provided with the conveying chamber, the top surface of conveying chamber is equipped with three guide mouth, the bottom intercommunication of guide mouth has the conveying chamber, agitator motor is installed to the inner wall in conveying chamber, and the internally mounted in conveying chamber have with the auger of agitator motor output end rigid coupling, a side surface of conveying chamber is equipped with and conveys the communicating discharge gate in chamber, and the outside rigid coupling that a side surface of conveying chamber is close to the discharge gate has the supporting plate, the internally mounted of supporting plate and discharge gate has the conveyer belt.

The invention also provides a manufacturing method of the recycled plastic, which comprises the following specific steps:

firstly, conveying waste plastics to the top end from a conveying channel;

step two, the waste plastics enter the crusher from the feeding hole, the gear set is driven by the driving motor, so that the crushing roller moves oppositely, and the waste plastics are crushed, manufactured and recycled by the crushing teeth;

and step three, realizing the discharge of the crushed waste plastic through the butt joint of the crushing outlet and the conveying opening.

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

1. plastic granules is wet-type proportion layering in proportion incasement, through waterproof motor drive blocking cover, blocking cover blocks the breach department of placing the ware, avoid sneaking into of the different plastic granules of proportion, improve proportion screening quality, also reduce the possibility that plastic granules appears dropping in the transportation simultaneously, transport through rodless cylinder and place ware to the guide mouth that corresponds, be convenient for dry the transport of plastic granules, order about the transmission rod transmission by push cylinder, drive three connecting rod through the transmission rod, and then make and place ware and clamp plate and take place the upset, be convenient for place the ejection of compact of plastic granules in the ware, improve plastic granules's ejection of compact transport efficiency, plastic granules enters into the conveying intracavity along the guide mouth.

2. Stirring motor drive auger rotates, and then drives the plastic granules motion of corresponding proportion, and hot-blast can be to the transportation process drying of plastic granules, improves plastic granules's overall quality, drops to the conveyer belt that corresponds through the discharge gate on, is convenient for get into the processing of next process to plastic granules, and degree of automation is higher.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

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

FIG. 2 is a schematic view of the installation structure of the rodless cylinder according to the present invention;

FIG. 3 is a schematic view of the mounting structure of the crushing pair rollers of the present invention;

FIG. 4 is a schematic perspective view of the dish according to the present invention;

FIG. 5 is a schematic view of the structural connection between the transfer chamber and the drying chamber according to the present invention;

FIG. 6 is a schematic view of the connection structure of the boat and the transmission rod of the present invention.

In the figure: 1. a crusher; 100. a feed inlet; 110. a gear case; 120. a drive motor; 130. a crushing outlet; 140. a fixing plate; 150. crushing the double rollers; 160. crushing teeth; 170. a gear set; 2. a material conveying channel; 3. a specific gravity box; 300. a transfer port; 310. a water line; 320. an outlet port; 4. a transfer chamber; 400. a material guide port; 410. a discharge port; 420. a mounting plate; 430. a conveyor belt; 440. a stirring motor; 450. a transfer chamber; 460. a packing auger; 5. a drying chamber; 500. an air inlet; 510. a fan; 520. filtering with a screen; 530. heating a tube; 6. a rodless cylinder; 600. a slide base; 610. an electric push rod; 620. pressing a plate; 630. a connecting rod; 640. placing a dish; 650. a transmission rod; 660. a push cylinder; 670. a shield cover; 680. a waterproof motor; 690. and (4) a liquid leakage hole.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be given with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 1-6, the plastic selecting method includes the following steps:

step one, after crushing treatment by a crusher 1, plastic particles enter a specific gravity box 3 from a conveying port 300, and standing layering is realized through the wet specific gravity of specific gravity liquid in the specific gravity box 3;

step two, through the transmission of the sliding seat 600, the three placing dishes 640 are matched with the corresponding three discharge ports 320, the placing dishes 640 are driven by the electric push rod 610 to enter the corresponding discharge ports 320, and after the placing dishes 640 are filled, the waterproof motor 680 drives the shielding cover 670 to rotate, so that the gaps of the placing dishes 640 are closed;

and step three, after the selection is finished, the three placing dishes 640 are conveyed to the corresponding material guide ports 400 through the sliding base 600, the waterproof motor 680 reversely drives the shielding cover 670 to be opened, the transmission rod 650 is pulled through the extension of the pushing cylinder 660, so that the connecting rod 630 drives the placing dishes 640 and the pressing plate 620 to deflect, and the plastic particles in the placing dishes 640 fall onto the corresponding material guide ports 400.

Under the initial state, the shielding cover 670 and the placing dish 640 are in an open state, so that plastic particles with different specific gravities can be conveniently contained through the notch at the placing dish 640.

Example 1

The invention provides a plastic selecting device, which comprises a crusher 1, wherein a feed inlet 100 is arranged on the top end surface of the crusher 1, a feed delivery channel 2 is arranged above the feed inlet 100, a gear set 170 is arranged on one side surface of the crusher 1, a gear box 110 is arranged outside the gear set 170, a driving motor 120 fixedly connected with the shaft end of one gear set 170 is arranged on the surface of the gear box 110, a crushing double roller 150 fixedly connected with the shaft end of the gear set 170 is arranged inside the crusher 1, crushing teeth 160 are fixedly arranged on the surface of the crushing double roller 150, a specific gravity box 3 is arranged below the crusher 1, a conveying port 300 is arranged on the top end surface of the specific gravity box 3, a crushing outlet 130 connected with the conveying port 300 is arranged on the bottom surface of the crusher 1, and waste plastics after crushing treatment can enter the specific gravity box 3 to carry out wet specific gravity.

The bottom one side of breaker 1 is connected with fixed plate 140, fixed plate 140 and the bottom integrated into one piece of breaker wherein, the front surface of specific gravity case 3 is provided with water level 310, can look over the water level value of specific gravity liquid in the specific gravity case 3 through water level 310, be convenient for in time add the specific gravity liquid in the specific gravity case 3, guarantee waste plastic's normal proportion, top surface at specific gravity case 3 is close to the border position and is equipped with discharge port 320, can supply three container 640 to pass the plastic granules after the proportion and take out.

The bottom ends of the crusher 1 and the fixing plate 140 are jointly provided with a rodless cylinder 6, the surface of the rodless cylinder 6 is provided with a sliding seat 600, the bottom end of the sliding seat 600 is provided with an electric push rod 610, the telescopic end of the electric push rod 610 is fixedly connected with a pressing plate 620, and the sliding seat 600 reciprocates on the rodless cylinder 6 to drive the pressing plate 620 to stably transmit.

The top of clamp plate 620 is provided with transfer line 650, one side of transfer line 650 is provided with push cylinder 660, and the one end swing joint of transfer line 650 has the connecting rod 630 of being connected with clamp plate 620 rotation, the ware 640 is placed to clamp plate 620 and fixedly connected with to the end of connecting rod 630, push cylinder 660 can push transfer line 650 through wherein, drive three connecting rod 630 that the activity links to each other by transfer line 650, and then make the position of placing ware 640 take place to deflect, be convenient for place the feeding and the ejection of compact work of the plastic granules in the ware 640, improve the feeding and the ejection of compact efficiency of plastic granules.

The shielding cover 670 is arranged at the notch on one side of the top of the placing vessel 640, the shielding cover 670 blocks the notch on the placing vessel 640, the mixing of plastic particles with different specific gravities is avoided, the specific gravity screening quality is improved, the possibility that the plastic particles fall in the transferring process is reduced, a plurality of liquid leakage holes 690 are formed in the surfaces of the shielding cover 670 and the placing vessel 640, in the rising process, after the placing vessel 640 containing the waste plastic particles is placed for tens of seconds, specific gravity liquid falls into the specific gravity box 3 through the plurality of liquid leakage holes 690 through the discharge port 320, the waste of the specific gravity liquid is avoided, a waterproof motor 680 for driving the shielding cover 670 to rotate is arranged at the joint of the shielding cover 670 and the placing vessel 640, the shielding cover 670 and the placing vessel 640 can be driven to rotate through the waterproof motor 680, the shielding cover 670 rotates to one side of the bottom of the placing vessel 640, at the moment, the notch on the top of the placing vessel 640 is opened, the plastic particles with layered specific gravity are contained in a placing vessel 640.

Example 2

A conveying chamber 4 is arranged on one side of the specific gravity box 3 in a laminating manner, three material guide ports 400 are arranged on the top end surface of the conveying chamber 4, the bottom of each material guide port 400 is communicated with a conveying cavity 450, a stirring motor 440 is arranged on the inner wall of the conveying cavity 450, a packing auger 460 fixedly connected with the output end part of the stirring motor 440 is arranged inside the conveying cavity 450, a discharge port 410 communicated with the conveying cavity 450 is arranged on one side surface of the conveying chamber 4, a support plate 420 is fixedly connected to the outer part of one side surface of the conveying chamber 4 close to the discharge port 410, a conveying belt 430 is arranged inside the support plate 420 and the discharge port 410, plastic particles containing different specific gravities are conveyed to the corresponding material guide ports 400 under the pushing of a rodless cylinder 6, at the moment, a shielding cover 670 on the placing dish 640 is turned over and opened, a pushing cylinder 660 drives a transmission rod 650 to transmit, the three connecting rods 630 are driven by the transmission rod 650, and the placing dish 640 and the pressing plate 620 are turned over, the discharging of the plastic granules in the dish 640 of being convenient for place improves plastic granules's ejection of compact transportation efficiency, and in plastic granules entered into conveying chamber 450 along guide opening 400, agitator motor 440 drove auger 460 and rotates, and then drove the plastic granules motion of corresponding proportion.

The top of guide mouth 400 is provided with drying chamber 5, the top surface of drying chamber 5 is equipped with air inlet 500, the inside of air inlet 500 is provided with fan 510, the top of fan 510 is provided with filter screen 520, two heating pipes 530 are installed to drying chamber 5's inner wall symmetry, at the in-process of carrying, by the heating pipe 530 with the wind heating of fan 510 inspiration, it is hot-blast to form, can dry to the transportation process of plastic granules, improve plastic granules's utilization ratio, drop to corresponding conveyer belt 430 through discharge gate 410 on, be convenient for get into the processing of next process to plastic granules.

The invention also comprises a manufacturing method of the recycled plastic, which comprises the following specific steps:

firstly, waste plastics are conveyed to the top end from a conveying channel 2;

step two, the waste plastics enter the crusher 1 from the feeding hole 100, the gear set 170 is driven by the driving motor 120, so that the crushing pair rollers 150 move oppositely, and the waste plastics are crushed, manufactured and reused by the crushing teeth 160;

and step three, realizing the discharge of the crushed waste plastic through the butt joint of the crushing outlet 130 and the conveying opening 300.

The method improves the reutilization rate of the waste plastic, and can be repeatedly used.

The working principle is as follows:

when the plastic particle sorting machine is used, plastic particles are layered in a wet specific gravity mode in the specific gravity box 3, the shielding cover 670 is driven by the waterproof motor 680, the shielding cover 670 blocks the notch of the placing vessel 640, the plastic particles with different specific gravities are prevented from being mixed, the specific gravity screening quality is improved, the possibility that the plastic particles fall in the transferring process is reduced, the placing vessel 640 is conveyed to the corresponding material guide port 400 through the rodless cylinder 6, the driving rod 650 is driven by the pushing cylinder 660 to drive the driving rod 650 to drive the three connecting rods 630 through the driving rod 650, the placing vessel 640 and the pressing plate 620 are turned over, the plastic particles in the placing vessel 640 are discharged conveniently, the discharging and transferring efficiency of the plastic particles is improved, and the plastic particles enter the transferring cavity 450 along the material guide port 400;

stirring motor 440 drive auger 460 rotates, and then drives the plastic granules motion of corresponding proportion, and hot-blast can be to the transportation process drying of plastic granules, improves plastic granules's overall quality, drops to the conveyer belt 430 that corresponds through discharge gate 410 on, is convenient for get into the processing of next process to plastic granules, and degree of automation is higher.

Although the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalents and alternatives falling within the spirit and scope of the invention.

Claims

1. The plastic selecting method is characterized by comprising the following specific steps:

step one, after crushing treatment by a crusher (1), plastic particles enter a specific gravity box (3) from a conveying opening (300), and standing and layering are realized through the wet specific gravity of specific gravity liquid in the specific gravity box (3);

step two, through the transmission of the sliding seat (600), the three placing dishes (640) are matched with the corresponding three discharge ports (320), the placing dishes (640) enter the corresponding discharge ports (320) through the driving of the electric push rod (610), and after the containing of the placing dishes (640) is finished, the waterproof motor (680) drives the shielding cover (670) to rotate, so that the notches of the placing dishes (640) are closed;

step three, after the selection is finished, the three placing dishes (640) are conveyed to the corresponding material guide ports (400) through the sliding base (600), the waterproof motor (680) drives the shielding cover (670) to be opened in a reverse mode, the transmission rod (650) is pulled through the stretching of the pushing cylinder (660), the connecting rod (630) drives the placing dishes (640) to deflect from the pressing plate (620), and the plastic particles in the placing dishes (640) fall onto the corresponding material guide ports (400).

2. A method of selecting plastic materials as claimed in claim 1, wherein the shield (670) and the boat (640) are initially in an open position.

3. The plastic selecting device is characterized by comprising a crusher (1), wherein a specific weight box (3) is arranged below the crusher (1), a fixing plate (140) is connected to one side of the bottom of the crusher (1), a water level line (310) is arranged on the front surface of the specific weight box (3), a conveying opening (300) is formed in the top end surface of the specific weight box (3), and a discharging opening (320) is formed in the position, close to the edge, of the top end surface of the specific weight box (3).

4. The plastic selecting device according to claim 3, wherein the bottom ends of the crusher (1) and the fixing plate (140) are provided with a rodless cylinder (6) together, the surface of the rodless cylinder (6) is provided with a sliding seat (600), the bottom end of the sliding seat (600) is provided with an electric push rod (610), and the telescopic end of the electric push rod (610) is fixedly connected with a pressing plate (620).

5. The plastic selecting device as claimed in claim 4, wherein a transmission rod (650) is disposed above the pressing plate (620), a pushing cylinder (660) is disposed at one side of the transmission rod (650), a connection rod (630) rotatably connected to the pressing plate (620) is movably connected to one end of the transmission rod (650), and a holding vessel (640) is fixedly connected to the end of the connection rod (630) penetrating through the pressing plate (620).

6. The plastic selecting device according to claim 5, wherein a shielding cover (670) is installed at the notch on one side of the top of the placing vessel (640), a plurality of liquid leakage holes (690) are formed in the surfaces of the shielding cover (670) and the placing vessel (640), and a waterproof motor (680) for driving the shielding cover (670) to rotate is installed at the joint of the shielding cover (670) and the placing vessel (640).

7. The plastic selecting device according to claim 3, wherein a conveying chamber (4) is attached to one side of the specific weight box (3), three material guide ports (400) are formed in the top end surface of the conveying chamber (4), a conveying cavity (450) is communicated with the bottom of each material guide port (400), a stirring motor (440) is installed on the inner wall of the conveying cavity (450), a packing auger (460) fixedly connected with the output end portion of the stirring motor (440) is installed inside the conveying cavity (450), a discharge port (410) communicated with the conveying cavity (450) is formed in one side surface of the conveying chamber (4), a support plate (420) is fixedly connected to the outer portion, close to the discharge port (410), of one side surface of the conveying chamber (4), and a conveying belt (430) is installed inside the support plate (420) and the discharge port (410).

8. The manufacturing method of the recycled plastic is characterized by comprising the following specific steps:

firstly, waste plastics are conveyed to the top end through a conveying channel (2);

step two, the waste plastics enter the crusher (1) from the feeding hole (100), the gear set (170) is driven through the driving motor (120), so that the crushing pair rollers (150) move oppositely, and the crushing teeth (160) crush the waste plastics for manufacturing and recycling;

and step three, the crushed waste plastic is discharged through the butt joint of the crushing outlet (130) and the conveying opening (300).