CN116373168A - A kind of recycling processing method of waste plastic products - Google Patents

Abstract

The invention discloses a method for recycling and reusing waste plastic products, which comprises the following steps: step 1, crushing the plastic products, and transporting the crushed plastic products to cleaning equipment; step 2, cleaning by cleaning equipment, the invention It relates to the technical field of recycling waste plastics. The method of recycling and reusing old plastic products is to layer the plastics according to their own density under the drive of water buoyancy during cleaning. Separation can not only separate plastic fragments of various densities, but also can be combined with the cleaning process to complete the operation synchronously. It can realize the function of sorting waste plastics with different densities. The separation effect is good and it is not easy to block, which is conducive to improving the waste Plastic recycling efficiency, and simple operation, can quickly output large quantities of plastic fragments.

Description

A kind of recycling processing method of waste plastic products

technical field

The invention relates to the technical field of recycling waste plastics, in particular to a method for recycling and reusing waste plastic products.

Background technique

As plastic products are used more and more in people's lives, a large amount of plastic waste is generated, and most of the plastic waste is non-degradable and easy to cause permanent pollution to the environment, but most plastic products, especially A large number of disposable ones, the performance of the plastic material itself has not changed much after use, so it is entirely possible to reprocess it into plastic products with appropriate methods after recycling, but in the process of plastic recycling, different types of Plastics often have different recycling processes and methods. At present, the relatively extensive waste plastic recycling devices often melt different types of waste plastics at one time. Due to the different melting temperatures of plastics with different textures and densities, the energy consumption is relatively large. The final plastic quality is poor and so on.

According to a feeding mechanism for waste plastic recycling and processing described in the patent No. CN214491217U, the separation effect is poor during use, the separation cannot be performed accurately, and a separate process is required for time-consuming and labor-intensive separation.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention provides a method for recycling and reusing waste plastic products, which solves the above-mentioned problems.

In order to achieve the above purpose, the present invention is achieved through the following technical solutions: a method for recycling and reusing waste plastic products, comprising the following steps:

Step 1. Crushing the plastic products, crushing them and transporting them to the cleaning equipment;

Step 2. Cleaning with cleaning equipment. After cleaning with internal ultrasonic device, the impurities floating on the water surface and oil are separated, and the filter extrusion plate is driven to move downward by driving the cylinder to squeeze the plastic products into the water. The oil floats up, and the overflow tank can facilitate the separation of the oil floating on the water surface and the impurities. The cleaning effect is better, and it is blocked by the shielding plate on the right side of the filter extrusion plate to prevent the transportation of plastic bottles that have not been cleaned. Into the output cavity, the graded output is carried out according to the density. When the discharge is required, the filter extrusion plate is driven to rise by the drive cylinder, and the baffle plate is raised to expose the discharge groove. When the filter extrusion plate rises, the pumping pump will start. After the water is pumped in from the pumping pipe, it is sprayed out through the outlet pipe, and the liquid surface is washed through the water nozzle under pressure. At this time, the discharge tank is exposed, and the plastic with light density floats on the liquid surface, and the water flow through the water nozzle flushes it Rush into the output cavity, output the graded plastic flakes, the conveyed plastic flakes are conveyed by the push plate, rotate to the right under the action of gravity potential energy, fall into the top of the guide frame, and push against each other through the top guide frame The plastic bottle flakes pushed out by the plate are guided, and then separated again. The water in the bottle flakes is filtered by the water recovery filter and flows into the output chamber, and then the plastic flakes are output through the discharge channel;

Step 3, the cleaned plastic sheets are dried by drying equipment;

Step 4: The dried plastic sheets are transported to the extruder for extrusion processing for reuse.

As a further solution of the present invention: when separating the impurities floating on the water surface from the oil in step 2, the filter extrusion plate is driven to move downward by driving the cylinder to squeeze the plastic products underwater, and the oil floats up and passes through the overflow tank The water spray port on the opposite side sprays water, and the oil and impurities floating on the water surface are discharged from the overflow tank for separation.

As a further solution of the present invention: in step 2, when performing graded output according to the density, the filter extrusion plate is driven to rise by driving the cylinder, and the baffle plate is raised to expose the discharge groove. When the filter extrusion plate rises, the pumping pump Start to draw water from the pumping pipe and then spray it out through the outlet pipe, and pressurize the water nozzle to flush the liquid surface. At this time, the discharge tank is exposed, and the light-density plastic floats on the liquid surface. It flushes into the output cavity for graded output.

As a further solution of the present invention: when the graded plastic flakes are output in step 2, the conveyed plastic bottle flakes are conveyed by the push plate, rotate rightward under the action of gravitational potential energy and fall onto the top of the guide frame.

As a further solution of the present invention: when performing separation again in step 2, the water flow in the bottle flakes flows into the output chamber after being filtered by the water recovery filter screen, and then the plastic flakes are output through the discharge channel.

As a further solution of the present invention: the cleaning equipment in step 2 includes a cleaning box, and the inner cavity of the cleaning box is divided into a cleaning cavity and an output cavity by a partition filter plate.

As a further solution of the present invention: the discharge tank in step 2 is flush with the liquid level of the washing liquid in the cleaning chamber, and the bottom of the filter extrusion plate is flush with the liquid level in the inner cavity of the cleaning chamber.

The cleaning equipment includes a cleaning box, the inner cavity of the cleaning box is separated into a cleaning chamber and an output chamber by a partition filter plate, the top of the cleaning chamber is fixedly connected with a driving cylinder, and the bottom end of the piston rod of the driving cylinder is fixedly connected with a filter The extrusion plate drives the filter extrusion plate to move downward by driving the cylinder to extrude the plastic products underwater, and the oil floats up to quickly discharge the impurities floating on the water surface. There is a filter extrusion plate located above the cleaning chamber. The overflow groove above the plate can facilitate the separation of the oil and impurities floating on the water surface through the overflow groove, and the cleaning effect is better. The inner cavity of the partition filter plate is provided with a discharge groove, and the discharge groove is connected with the cleaning chamber The liquid level of the inner washing liquid is flush, the right side of the filter squeeze plate is fixedly connected with a shielding plate, the inner cavity of the discharge groove is provided with a sliding groove slidingly connected with the surface of the filter squeeze plate, and the filter squeeze plate The bottom of the pressing plate is flush with the liquid level in the inner chamber of the cleaning box, and the plastic pieces floating on the liquid surface are transported to the output chamber through the discharge groove, and are blocked by the shielding plate on the right side of the filter extrusion plate to prevent it from being cleaned. The completed plastic bottle flakes are conveyed into the output chamber, and when it needs to be discharged, the filter extrusion plate is driven to rise by the driving cylinder, and the shielding plate is raised to expose the discharge groove. The inner cavity of the output chamber is rotatably connected with a passing motor The drive shaft is driven, the surface of the drive shaft is fixedly connected with push plates, and there are two push plates, which are symmetrically distributed on both sides of the drive shaft, and the right side of the output cavity is connected with a discharge channel, so The inner cavity of the output cavity is fixedly connected with a guide frame, one side of the guide frame communicates with the inner cavity of the discharge channel, and the inside of the guide frame is provided with a water recovery filter, and the plastic bottle flakes delivered pass through the push plate Under the action of gravitational potential energy, it rotates to the right and pushes out, and falls into the top of the guide frame. The water in the bottle flakes is filtered by the water recovery filter and flows into the output cavity, and then the plastic flakes are output to the drying chamber through the discharge channel. Drying in the drying equipment, the left side of the cleaning box is fixedly connected with a pumping pump, the suction port of the pumping pump communicates with the inner cavity of the cleaning box through the suction pipe, and the inner cavity of the output cavity is fixed with a The flush water spray port, the water outlet of the pumping pump communicates with the inner cavity of the water spray port through the water outlet pipe, when the driving cylinder drives the filter squeeze plate to rise, the pumping pump starts to draw water from the water pumping pipe and then passes through The outlet pipe is sprayed out, and the liquid surface is pressurized through the water nozzle to flush the liquid surface. At this time, the discharge groove is exposed, and the plastic with light density floats on the liquid surface. The push plate inside the output cavity pushes it out, and the top of the output cavity is fixedly connected with a top guide frame. The top guide frame is an arc-shaped plate, which can guide the plastic bottle flakes pushed out by the push plate, so that it can be smoothly Transported to the discharge channel for output.

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

1. In the present invention, the plastics are layered according to their own density under the drive of water buoyancy during cleaning, the low-density ones float above, and the low-density ones pile up below, and the separation of different densities is carried out while cleaning, not only for multiple It can separate plastic fragments of different densities, and can be combined with the cleaning process to complete the operation synchronously. It can realize the function of sorting waste plastics of different densities. The separation effect is good and it is not easy to block, which is conducive to improving the recycling efficiency of waste plastics. And it is easy to operate, and can quickly output large quantities of plastic chips.

2. In the present invention, the transported plastic bottle flakes are transported by the push plate, rotated to the right and pushed out under the action of gravity potential energy, and fall into the top of the guide frame, and the water flow in the bottle flakes flows into the The output cavity, and then the plastic sheet is output to the drying equipment through the output channel for drying, and the plastic can be output quickly, and the output effect is good.

Description of drawings

Fig. 1 is a structural sectional view of the present invention;

Fig. 2 is the partial enlarged view of place A in Fig. 1 of the present invention;

Fig. 3 is the structural connection schematic diagram of the present invention;

Fig. 4 is a front view of the structure of the present invention.

In the figure: 1. Cleaning box; 2. Partition filter plate; 3. Cleaning chamber; 4. Output chamber; 5. Drive cylinder; 6. Filter extrusion plate; 7. Overflow tank; 8. Pumping pump; 9. Pumping Pipeline; 10, water outlet pipe; 11, water spray port; 12, top guide frame; 13, drive shaft; 14, push plate; 15, guide frame; 16, water recovery filter; 17, discharge channel; 18, shield Plate; 19, slide groove; 20, discharge groove.

Detailed ways

In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, features and effects of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

Please refer to Figures 1-4, the present invention provides a technical solution: a method for recycling and reusing waste plastic products, including the following steps:

Step 1. Crushing the plastic products, crushing them and transporting them to the cleaning equipment;

Step 2: Clean with cleaning equipment. After cleaning with internal ultrasonic device, separate impurities and oil floating on the water surface, and drive the filter extrusion plate 6 to move downward by driving the cylinder 5 to squeeze the plastic products into the water. Down, the oil floats up, and the oil floating on the water surface and impurities can be easily discharged and separated through the overflow tank 7, and the cleaning effect is better, and it is blocked by the shielding plate 18 on the right side of the filter extrusion plate 6 to prevent it from being cleaned. The plastic bottle flakes are transported to the output chamber 4, and are graded and output according to the density. When the discharge is required, the filter extrusion plate 6 is driven to rise by the drive cylinder 5, and the baffle plate 18 is raised to expose the discharge groove 20, and the filter extrusion When the pressure plate 6 rises, the pumping pump 8 starts to draw the water from the pumping pipe 9 and sprays it out through the water outlet pipe 10, and pressurizes the liquid surface through the water spray port 11 to flush the liquid surface. At this time, the discharge groove 20 is exposed and the density is relatively light. The plastic floats on the liquid surface, and is washed into the output chamber 4 by the water flow through the water nozzle 11, and the graded plastic flakes are output. Under the action, it rotates to the right and falls onto the top of the guide frame 15. The plastic bottle flakes pushed out by the push plate 14 are guided by the top guide frame 12, and then separated again. The water in the bottle flakes is filtered by the water recovery filter screen 16. Flow into the output cavity 4, and then the plastic sheets are output through the discharge channel 17, and the plastic is layered according to its own density under the drive of water buoyancy during cleaning. Separation of different densities at the same time, not only can separate plastic fragments of various densities, but also can be combined with the cleaning process to complete the operation synchronously, and can realize the function of sorting waste plastics with different densities, and the separation effect is good and not easy Blockage is conducive to improving the recycling efficiency of waste plastics, and the operation is simple, which can quickly output large quantities of plastic fragments;

Step 3, the cleaned plastic sheets are dried by drying equipment;

Step 4: The dried plastic sheets are transported to the extruder for extrusion processing for reuse.

When separating the impurities floating on the water surface from the oil in step 2, the filter extrusion plate 6 is driven to move downward by the driving cylinder 5 to squeeze the plastic products underwater, and the oil floats up, and passes through the water spray on the opposite side of the overflow tank 7 The port 11 sprays water, and the oil and impurities floating on the water surface are discharged from the overflow tank 7 for separation.

In step 2, when performing graded output according to the density, drive the cylinder 5 to drive the filter squeeze plate 6 to rise, drive the baffle plate 18 to rise, and expose the discharge groove 20, and when the filter squeeze plate 6 rises, the pumping pump 8 starts After the water is drawn in from the water pumping pipe 9, it is sprayed out through the water outlet pipe 10, and the liquid surface is washed through the water spray port 11 under pressure. The water flow of 11 flushes it into the output chamber 4 for graded output.

When outputting the graded plastic flakes in step 2, the conveyed plastic bottle flakes are conveyed by the push plate 14, rotate to the right under the action of gravitational potential energy, and fall onto the top of the guide frame 15.

When separating again in step 2, the water flow in the bottle flakes flows into the output chamber 4 after being filtered by the water recovery filter screen 16 , and then the plastic flakes are output through the discharge channel 17 .

The cleaning equipment in step 2 includes a cleaning box 1 , and the inner cavity of the cleaning box 1 is divided into a cleaning chamber 3 and an output chamber 4 by a partition filter plate 2 .

The discharge tank 20 in step 2 is flush with the liquid level of the washing liquid in the cleaning chamber 3 , and the bottom of the filter extrusion plate 6 is flush with the liquid level in the inner cavity of the cleaning chamber 3 .

The cleaning equipment includes a cleaning box 1. The inner cavity of the cleaning box 1 is divided into a cleaning chamber 3 and an output chamber 4 by a partition filter plate 2. The top of the cleaning chamber 3 is fixedly connected to a driving cylinder 5, and the bottom end of the piston rod of the driving cylinder 5 is fixedly connected to There is a filter squeeze plate 6, which drives the filter squeeze plate 6 to move downward through the drive cylinder 5 to squeeze the plastic products underwater, and the oil floats up, which can quickly discharge the impurities floating on the water surface. The overflow groove 7 located above the filter extrusion plate 6 can facilitate the separation of oil and impurities floating on the water surface through the overflow groove 7, and the cleaning effect is better. The inner cavity of the partition filter plate 2 is provided with a discharge groove 20, The discharge tank 20 is flush with the liquid level of the washing liquid in the cleaning chamber 3, and the right side of the filter squeeze plate 6 is fixedly connected with a baffle plate 18, and the inner cavity of the discharge tank 20 is provided with a sliding connection with the surface of the filter squeeze plate 6. Sliding groove 19, the bottom of the filter squeeze plate 6 is flush with the liquid level in the inner cavity of the cleaning box 1, and the plastic sheets floating on the liquid surface are transported to the output chamber 4 through the discharge groove 20, and the filter squeeze plate 6 The baffle plate 18 on the right is used for occlusion to prevent unwashed plastic bottle flakes from being transported into the output chamber 4. When it needs to be discharged, the filter extrusion plate 6 is driven to rise by the driving cylinder 5, and the baffle plate 18 is driven to rise, and the discharged The groove 20 is exposed, and the inner cavity of the output chamber 4 is rotatably connected with a drive shaft 13 driven by a motor. The surface of the drive shaft 13 is fixedly connected with a push plate 14. Symmetrically distributed, the right side of the output cavity 4 is connected with a discharge channel 17, the inner cavity of the output cavity 4 is fixedly connected with a guide frame 15, one side of the guide frame 15 communicates with the inner cavity of the discharge channel 17, and the inside of the guide frame 15 A water recovery filter 16 is installed, and the plastic bottle flakes transported are transported by the push plate 14, rotated to the right and pushed out under the action of gravity potential energy, and fall into the top of the guide frame 15, and the water in the bottle flakes passes through the water recovery filter. 16 is filtered and flows into the output chamber 4, and then the plastic sheet is output to the drying equipment through the discharge channel 17 for drying. The left side of the cleaning box 1 is fixedly connected with a suction pump 8, and the suction port of the suction pump 8 passes through the water pump. The pipeline 9 communicates with the inner cavity of the cleaning tank 1, the inner cavity of the output chamber 4 is fixed with a water jet 11 flush with the liquid level, and the water outlet of the pumping pump 8 communicates with the inner cavity of the water jet 11 through the water outlet pipeline 10, When the driving cylinder 5 drives the filter extrusion plate 6 to rise, the pumping pump 8 starts to pump water from the water pumping pipe 9 and then sprays it out through the water outlet pipe 10, and pressurizes the liquid surface through the water spray port 11 to flush the liquid surface. The groove 20 is exposed, and the plastic with light density floats on the liquid surface. It is washed into the output cavity 4 by the water flow of the water nozzle 11, and it is pushed out by the push plate 14 inside the output cavity 4. The top of the output cavity 4 Fixedly connected with a top guide frame 12, the top guide frame 12 is an arc-shaped plate, which can guide the plastic bottle flakes released by the push plate 14, so that it can be smoothly delivered to the discharge channel 17 for output.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone skilled in the art , without departing from the scope of the technical solution of the present invention, when the technical content disclosed above can be used to make some changes or be modified into equivalent embodiments with equivalent changes, but as long as it does not depart from the technical solution of the present invention, the technical content of the present invention In essence, any brief modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the present invention.

Claims (7)

1. A recycling treatment method of waste plastic products is characterized in that: the method comprises the following steps:

crushing a plastic product, and conveying the crushed plastic product to cleaning equipment;

step two, cleaning by using cleaning equipment, separating impurities floating on the water surface from oil after cleaning by using an internal ultrasonic device, outputting the separated impurities and the separated oil in a grading manner according to density, outputting the graded plastic sheets, separating again, and outputting the plastic sheets through a discharging channel (17);

step three, drying the cleaned plastic sheet through a drying device;

and step four, conveying the dried plastic sheet into an extruder, and carrying out extrusion processing for reuse.

2. The recycling treatment method of waste plastic products according to claim 1, characterized in that: and in the second step, when the impurities floating on the water surface are separated from the oil, the filtering extrusion plate (6) is driven to move downwards by the driving cylinder (5) to extrude the plastic product into water, the oil floats upwards, water is sprayed through a water spray port opposite to the overflow groove (7), and the oil and the impurities floating on the water surface are discharged from the overflow groove (7) to be separated.

3. The recycling treatment method of waste plastic products according to claim 1, characterized in that: when the filter extrusion plate (6) is driven to rise by the driving cylinder (5) and the shielding plate (18) is driven to rise, the discharge groove (20) is exposed, when the filter extrusion plate (6) rises, the pumping pump (8) is started to pump water from the pumping pipeline (9) and then spray the water out of the pumping pipeline (10), the water is pressurized through the water spraying port (11) to flush the liquid level, at the moment, the discharge groove (20) is exposed, the plastic with light density floats on the liquid level, and the plastic is flushed into the output cavity (4) through the water flow of the water spraying port (11) to be output in a grading manner.

4. The recycling treatment method of waste plastic products according to claim 1, characterized in that: and step two, when the graded plastic sheets are output, the conveyed plastic bottle sheets are conveyed through a push plate (14), are rotationally pushed out rightward under the action of gravitational potential energy and fall above a guide frame (15).

5. The recycling treatment method of waste plastic products according to claim 1, characterized in that: when the second separation is carried out, the water flow in the bottle flakes flows into the output cavity (4) after being filtered by the water recovery filter screen (16), and then the plastic flakes are output through the discharge channel (17).

6. The recycling treatment method of waste plastic products according to claim 1, characterized in that: the cleaning equipment in the second step comprises a cleaning box (1), wherein the inner cavity of the cleaning box (1) is divided into a cleaning cavity (3) and an output cavity (4) through a partition filter plate (2).

7. The recycling treatment method of waste plastic products according to claim 1, characterized in that: and in the second step, the discharge groove (20) is flush with the liquid level of the washing liquid in the washing cavity (3), and the bottom of the filtering extrusion plate (6) is flush with the liquid level of the inner cavity of the washing cavity (3).

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