CN210791664U

CN210791664U - Plastics electrostatic separation machine

Info

Publication number: CN210791664U
Application number: CN201921780837.7U
Authority: CN
Inventors: 钟建兵; 黄晨
Original assignee: Zhejiang Sumai Machinery Co Ltd
Current assignee: Zhejiang Youxin Plastic Machine Co ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-06-19
Anticipated expiration: 2029-10-22

Abstract

The utility model provides a plastics electrostatic separation machine belongs to plastics sorter technical field. It has solved the ubiquitous big not compact problem enough of current sorter. This plastics electrostatic separation machine includes the frame and rack-mounted hopper, friction charge device, electrostatic separation field device and separation container device, and friction charge device, electrostatic separation field device and separation container device are located upper portion, middle part and the bottom of frame respectively, the feed inlet of hopper is located frame up end top, and the feed inlet of friction charge device is stretched into to the discharge gate of hopper, and the feed inlet of friction charge device is located one side of frame, and the discharge gate of friction charge device is located the opposite side of frame and is connected with the electrostatic separation passageway of above-mentioned electrostatic separation field device, and the separation container device includes two at least separation containers, and above-mentioned electrostatic separation passageway is located separation container's top. The plastic electrostatic separator has the advantages of simple and compact structure and small volume.

Description

Plastics electrostatic separation machine

Technical Field

The utility model belongs to the technical field of the plastics sorter, a plastics electrostatic separation machine is related to.

Background

In recent years, recycling of garbage has been rapidly advanced. However, ABS plastics, polypropylene resins (hereinafter referred to as "PP") and polystyrene resins (hereinafter referred to as "PS") account for 80% of the total as raw materials for plastic products, and most of the recovered waste plastics are these resins. The sorting of various resin types is an important link of recycling.

The principle of the existing separator is that various kinds of plastics mixed with various kinds of plastics are rubbed by a friction charging device to enable the various kinds of plastics to have corresponding electrical property, and then the plastics with positive electrodes or negative electrodes are separated by a high-voltage electrode with high-voltage positive and negative electrodes and a metal roller electrode pair to achieve the purpose of separation. However, the existing sorting machine generally has the problem of large volume and not compact enough.

Disclosure of Invention

The utility model aims at solving the problem, a plastics electrostatic separation machine is proposed.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a plastics electrostatic separation machine, includes the frame and installs hopper, friction charging device, static separation field device and the separation container device in the frame, its characterized in that: the friction charged device, the electrostatic separation field device and the separation container device are respectively located at the upper part, the middle part and the bottom of the rack, the feed inlet of the hopper is located above the upper end face of the rack, the discharge outlet of the hopper extends into the feed inlet of the friction charged device, the feed inlet of the friction charged device is located at one side of the rack, the discharge outlet of the friction charged device is located at the other side of the rack and is connected with an electrostatic separation channel of the friction charged device, the separation container device comprises at least two separation containers, and the electrostatic separation channel is located above the separation containers.

In foretell plastics electrostatic separation machine, the friction charged device including horizontal two friction charged structures that set up side by side, friction charged structure includes first driving motor, axis of rotation and links firmly in the axis of rotation and with a plurality of puddlers that the axis of rotation slope set up, a plurality of the puddler is evenly arranged in the axis of rotation, the axis of rotation both ends are located the both sides of frame respectively, and above-mentioned hopper has same feed inlet and two mutually independent discharge gates, and two respective feed inlets mutually independent of friction charged structure set up and are connected with two mutually independent discharge gates of above-mentioned hopper respectively, and two respective discharge gates of friction charged structure are joined and are formed same discharge gate, and this discharge gate of definition is the friction charged discharge gate.

In the above electrostatic separator for plastics, the electrostatic separation field device includes a metal roller and an electrode plate which are arranged at an interval, and a power supply circuit which makes the metal roller and the electrode plate respectively carry different polarity electricity to form the electrostatic separation channel, two ends of the metal roller are respectively rotatably connected to the front side and the rear side of the middle part of the frame, and the metal roller and the rotating shaft of the frictional electrification structure are arranged perpendicular to each other.

In foretell plastics electrostatic separation machine, frame middle part still be equipped with conveyor belt mechanism, conveyor belt mechanism includes the action wheel, follows the driving wheel and connects the conveyer belt between follow driving wheel and action wheel, the feed end of conveyer belt is located above-mentioned friction electrification discharge gate under, the discharge end and the above-mentioned electrostatic separation passageway of conveyer belt are connected.

In the above electrostatic separator for plastics, the conveyor belt is a vibrating conveyor belt.

In the above plastic electrostatic separator, the number of the separation containers is three, and the separation containers are arranged at the bottom of the frame side by side.

Compared with the prior art, the plastic electrostatic separator has the following advantages:

1. the plastic sheets are subjected to frictional electrification in a structural mode of the rotating shaft and the stirring rod, so that the structure is simple and the cost is low;

2. the vibrating conveyor belt can evacuate the plastic sheets at the mixing port and spread the plastic sheets so as not to be stacked together, thereby improving the separation accuracy during separation;

3. the upper, middle and lower parts of the frame are divided into 3 layers of structures for respectively installing corresponding structures, so that the whole structure is more compact and reasonable, the size of the whole equipment is reduced, and the whole equipment is convenient to transport and does not occupy space.

Drawings

Fig. 1 is a schematic structural view of the plastic electrostatic classifier.

Fig. 2 is a cross-sectional view at a-a in fig. 1.

Fig. 3 is a schematic view of the internal structure of the plastic electrostatic classifier.

In the figure, 1, a frame; 2. a hopper; 3. a triboelectric charging structure; 31. a triboelectric discharge port; 4. a conveyor belt mechanism; 41. a conveyor belt; 42. a driving wheel; 43. a driven wheel; 5. a metal drum; 6. and (5) separating the container.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

The electrostatic separator for plastics is used for separating a mixture of a plurality of waste plastics, and among them, ABS plastics, polypropylene resins (hereinafter, referred to as "PP") and polystyrene resins (hereinafter, referred to as "PS") account for 80% of the total plastics, and most of the waste plastics to be recovered are of these resins. Can be used for sorting ABS plastics, engineering plastics, miscellaneous plastics and household appliance plastics. The sorting of various resin types is an important link of recycling. When objects of different substances rub against each other, one object must be positively charged and the other negatively charged. The charging sequence is a series of operations in which substances are arranged in the order of positive to negative charges from the viewpoint of positive and negative charges.

As shown in fig. 1, 2 and 3, the plastic electrostatic separator comprises a frame 1, and a hopper 2, a friction charging device, an electrostatic separation field device and a separation container device which are arranged on the frame 1, wherein the friction charging device, the electrostatic separation field device and the separation container device are respectively positioned at the upper part, the middle part and the bottom of the frame 1, and the middle part of the frame 1 is also provided with a conveyor belt mechanism 4. The upper, middle and lower parts of the frame 1 are divided into 3 layers of structures for respectively installing corresponding structures, so that the whole structure is more compact and reasonable, the size of the whole equipment is reduced, and the whole equipment is convenient to transport and does not occupy space. The separation vessel arrangement comprises at least two separation vessels 6, an electrostatic separation channel being located above the separation vessels 6, in this embodiment three separation vessels 6 being arranged side by side at the bottom of the housing 1, which three separation vessels are intended for collecting the mixture of the charged sequence rows first and second plastic and the rest of the plastic, respectively, in the plastic mixture.

Wherein, friction electrification device is including two friction electrification structures 3 that transversely set up side by side, and friction electrification structure 3 includes first driving motor, axis of rotation and links firmly in the axis of rotation and with a plurality of puddlers that the axis of rotation slope set up, a plurality of puddlers evenly arrange in the axis of rotation, and the axis of rotation both ends are located the both sides of frame 1 respectively. The specific structure of the first driving motor, the rotating shaft and the stirring rod is not shown in the drawings, and the structure and the working principle thereof are prior art and will not be described in detail herein. Hopper 2 has same feed inlet and two mutually independent discharge gates, and two friction charged structure 3 respective feed inlets mutually independent sets up and is connected with two mutually independent discharge gates of hopper 2 respectively, and two friction charged structure 3 respective discharge gates converge and form same discharge gate, and this discharge gate of definition is friction charged discharge gate 31. The mixture of various plastics enters two friction charging structures 3 from the hopper 2 to be rubbed, so that the various plastics are charged and corresponding polar charge quantity is given. The two friction electrification structures 3 can simultaneously carry out friction electrification on the plastic mixture, so that the working efficiency is improved; the plastic sheets are subjected to frictional electrification through the rotating shaft and the stirring rod, and the plastic sheet friction electrification device is simple in structure and low in cost.

The electrostatic separation field device comprises a metal roller 5 and an electrode plate which are arranged at intervals, and a power supply circuit which enables the metal roller 5 and the electrode plate to respectively carry different polarity electricity so as to enable a gap between the metal roller 5 and the electrode plate to form the electrostatic separation channel, two ends of the metal roller 5 are respectively and rotatably connected to the front side and the rear side of the middle part of the frame 1, and the metal roller 5 and a rotating shaft of the friction electrification structure 3 are arranged perpendicular to each other. The structure and principle of the electrostatic separation field device are the prior art, and specific reference is made to chinese patent with publication number CN1312738A entitled plastic separation method and plastic separation device, which will not be described in detail herein.

The conveyor belt mechanism 4 comprises a driving wheel 42, a driven wheel 43 and a conveyor belt 41 connected between the driven wheel 43 and the driving wheel 42, wherein the feeding end of the conveyor belt 41 is positioned right below the frictional electrification discharging port 31, and the discharging end of the conveyor belt 41 is connected with the electrostatic separation channel. The driving wheel 42 and the driven wheel 43 are parallel to the metal roller 5, and two ends of each of the driving wheel 42 and the driven wheel are respectively rotatably connected to the frame 1, and the driving wheel 42 is further connected with a second driving motor which is fixedly installed on the frame 1. Triboelectric's plastic mixture enters into conveyer belt 41 from triboelectric discharge gate 31 on, the conveyer belt of this embodiment is vibrating conveyer belt 41, and conveyer belt 41 can vibrate the dispersion to plastic mixture and lay out for it is serious no longer to pile up each other between each plastics, so be convenient for accurately separate when subsequent electrostatic field separates, improves the separation accuracy rate.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a plastics electrostatic separation machine, includes frame (1) and installs hopper (2), friction electrification device, electrostatic separation field device and separation container device in frame (1), its characterized in that: the friction charging device, the electrostatic separation field device and the separation container device are respectively located at the upper part, the middle part and the bottom of the frame (1), the feed inlet of the hopper (2) is located above the upper end face of the frame (1), the discharge outlet of the hopper (2) extends into the feed inlet of the friction charging device, the feed inlet of the friction charging device is located at one side of the frame (1), the discharge outlet of the friction charging device is located at the other side of the frame (1) and is connected with an electrostatic separation channel of the friction charging device, the separation container device comprises at least two separation containers (6), and the electrostatic separation channel is located above the separation container (6).

2. An electrostatic classifier for plastics according to claim 1, wherein said triboelectric device comprises two triboelectric structures (3) arranged laterally side by side, the friction charged structure (3) comprises a first driving motor, a rotating shaft and a plurality of stirring rods which are fixedly connected on the rotating shaft and are obliquely arranged with the rotating shaft, the stirring rods are uniformly arranged on the rotating shaft, the axis of rotation both ends are located the both sides of frame (1) respectively, and above-mentioned hopper (2) have same feed inlet and two mutually independent discharge gates, and two friction charged structure (3) respective feed inlet mutually independent sets up and is connected with two mutually independent discharge gates of above-mentioned hopper (2) respectively, and two friction charged structure (3) respective discharge gates converge and form same discharge gate, and this discharge gate of definition is friction charged discharge gate (31).

3. The electrostatic classifier as claimed in claim 2, wherein said electrostatic separation field device comprises a metal roller (5) and an electrode plate spaced from each other and a power circuit for electrifying said metal roller (5) and said electrode plate respectively with different polarities to form said electrostatic separation passage therebetween, both ends of said metal roller (5) are rotatably connected to the front and rear sides of the middle portion of said frame (1), respectively, and the rotation axes of said metal roller (5) and said triboelectric charging structure (3) are arranged perpendicular to each other.

4. The electrostatic plastic separator according to claim 3, wherein a conveyor belt mechanism (4) is further arranged in the middle of the frame (1), the conveyor belt mechanism (4) comprises a driving wheel (42), a driven wheel (43) and a conveyor belt (41) connected between the driven wheel (43) and the driving wheel (42), the feeding end of the conveyor belt (41) is located right below the frictional electrification discharging port (31), and the discharging end of the conveyor belt (41) is connected with the electrostatic separation channel.

5. An electrostatic classifier for plastics according to claim 4, wherein said conveyor belt (41) is a vibrating conveyor belt.

6. An electrostatic classifier for plastics according to claim 1, wherein the separation vessels (6) are three and arranged side by side at the bottom of the frame (1).