CN210082165U - Waste plastic recycling device - Google Patents

Abstract

The waste plastic recycling device includes a crushing and melting mechanism, a plastic extruder, a discharging cooling mechanism and a cutting mechanism; the crushing and melting mechanism, the plastic extruder and the discharging cooling mechanism are connected in sequence; the cutting mechanism is arranged at the discharging of the discharging cooling mechanism at the end to cut off the continuous strip of plastic discharged from the discharge cooling mechanism. The utility model realizes the recycling of waste plastics, and the waste plastics are put into the feeding hopper, and the granular solid plastics can be output from the nozzle, and the output granular solid plastics can be directly used as raw materials for industrial production or 3D printing.

Description

Waste plastic recycling device

technical field

The utility model relates to the field of garbage recycling machinery, in particular to a waste plastic recycling device.

Background technique

With the development of the economy and the improvement of people's living standards, the output of garbage is also getting higher and higher. How to effectively recycle garbage has become a problem that the society pays more and more attention to.

Among them, non-degradable plastic is the most important component of garbage, and plastic waste is not easy to be decomposed under natural conditions, and the resulting white pollution has become a global public hazard, which has a serious impact on the ecological environment.

The traditional method of compression and deep burial takes up a lot of space, the degradation speed is slow, and the recycling rate is zero, which can no longer meet the processing needs of the growing amount of waste plastic waste.

SUMMARY OF THE INVENTION

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a waste plastic recycling device, which solves the problem of the difficulty of recycling and utilization of traditional waste plastic waste. granular plastic raw materials.

The technical scheme of the utility model is as follows: a waste plastic recycling device includes a crushing and melting mechanism, a plastic extruder, a discharging cooling mechanism and a cutting mechanism; the crushing and melting mechanism, the plastic extruder and the discharging cooling mechanism are connected in sequence; the cutting mechanism is provided with At the discharge end of the discharge cooling mechanism, the continuous strip-shaped plastic discharged from the discharge cooling mechanism is cut off.

The further technical scheme of the utility model is as follows: the crushing and melting mechanism includes a feeding hopper, a crushing roller group, a driving component and an electric heating plate; the upper end of the feeding hopper is provided with a feeding port, the lower end is provided with a discharging port, and the feeding hopper has an inner cavity The lower end is provided with a sieve plate for filtering impurities; the crushing drum group includes two drums, and the outer wall of the drum is evenly distributed with a plurality of nail teeth, and the two drums are respectively installed in the inner cavity of the feeding hopper through the rotating shaft. There is a strip gap between the two rollers; the driving component is arranged outside the feeding hopper and is associated with the rotating shafts of the two rollers to drive the two rollers to rotate synchronously and reversely; the electric heating plate is inclined and arranged in the inner cavity of the feeding hopper , and is located at the lower end of the crushing drum group, and a drop opening is formed between it and the inner cavity of the feeding hopper.

A further technical solution of the present utility model is: the driving component includes a motor A, a gear A and a gear B; the motor A is installed on the outer wall of the feeding hopper, and is connected with the rotating shaft of the drum through a coupling; the gear A and the gear B are respectively It is installed on the rotating shaft of the two rollers and meshes with each other.

A further technical solution of the utility model is: the discharge cooling mechanism includes a shell-and-tube heat exchanger, a water pump, a water tank, a nozzle and a cooling pipe; the shell-and-tube heat exchanger is provided with a tube-side cavity and a shell that are not connected to each other. The tube-side cavity is provided with a tube-side inlet and a tube-side outlet on the outer wall of the shell-and-tube heat exchanger, and the shell-side cavity is provided with a cooling liquid inlet and a cooling liquid outlet on the outer wall of the shell-and-tube heat exchanger; One end of the water pump is the water inlet end, and the other end is the water outlet end; the outer wall of the water tank is provided with a water inlet and a water outlet connected to its inner cavity, the water inlet is connected with the tube side outlet of the shell-and-tube heat exchanger, and the water outlet is connected to the water outlet of the pump. The water inlet end is connected; the nozzle is in the shape of a tube with two open ends, one end of which is the feeding end and the other end is the discharging end; the cooling pipe is spirally wound on the nozzle, and its two ends are respectively connected to the tube side of the shell and tube heat exchanger. The inlet is communicated with the outlet end of the water pump.

A further technical solution of the utility model is that the discharging cooling mechanism further comprises cooling fans arranged oppositely on both sides of the nozzle.

The further technical scheme of the utility model is: one end of the plastic extruder is provided with an inlet, the other end is provided with an outlet, the inlet of the plastic extruder is communicated with the discharge port of the feeding hopper, and the outlet of the plastic extruder is connected with the nozzle of the nozzle. The feed end is connected.

A further technical solution of the present utility model is that the cutting mechanism comprises a motor B and a cutter installed on the shaft of the motor B, and the cutter is facing the discharge end of the nozzle.

Compared with the prior art, the utility model has the following advantages:

1. The recycling of waste plastics is realized, and the waste plastics are put into the feed hopper, and granular solid plastics can be output from the nozzle, and the output granular solid plastics can be directly used as raw materials for industrial production or 3D printing.

2. Granular solid plastics of different sizes can be output by adjusting the rotational speed of the cutter, the extrusion rate of the plastic extruder, or by changing nozzles with different inner diameters to meet the needs of industrial production or 3D printing raw materials in different application scenarios.

The utility model will be further described below in conjunction with figures and embodiments.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of pulverizing and melting mechanism;

Figure 3 is a schematic diagram of the connection relationship of the discharge cooling mechanism.

Detailed ways

Example 1:

As shown in Figure 1-3, the waste plastic recycling device includes a crushing and melting mechanism, a plastic extruder 2, a discharge cooling mechanism and a cutting mechanism.

The crushing and melting mechanism includes a feeding hopper 11 , a crushing drum group, a driving component and an electric heating plate 14 . The upper end of the feeding hopper 11 is provided with a feeding port 111, and the lower end is provided with a feeding port 112. The feeding hopper 11 is provided with a sieve plate 113 for filtering impurities at the lower end of the inner cavity near the feeding port 112. The crushing drum set includes two drums 121 , a plurality of nail teeth 1211 are evenly distributed on the outer wall of the drum 121 , the two drums 121 are respectively installed in the inner cavity of the feeding hopper 11 through the rotating shaft 122 , and there is a bar between the two drums 121 Shaped gap 15, strip-shaped gap 15 for the crushed plastic to pass and fall. The drive assembly is arranged outside the feeding hopper 11 and is associated with the shafts 122 of the two drums 121 to drive the two drums 121 to rotate in opposite directions. The driving assembly includes a motor A131, a gear A132 and a gear B133. The motor A131 is installed in the feeding hopper. 11, and is connected with the rotating shaft 122 of the drum 121 through a coupling. The gear A132 and the gear B133 are respectively installed on the rotating shafts 122 of the two drums 121 and mesh with each other. The electric heating plate 14 is obliquely arranged in the inner cavity of the feeding hopper 11 and is located at the lower end of the crushing drum group, and a drop opening 16 is formed between it and the inner cavity of the feeding hopper 11 .

The discharge cooling mechanism includes a shell and tube heat exchanger 31 , a water pump 32 , a water tank 33 , a nozzle 34 and a cooling pipe 35 . The shell-and-tube heat exchanger 31 is provided with a tube-side cavity and a shell-side cavity that are not connected to each other, and the tube-side cavity is provided with a tube-side inlet 311 and a tube-side outlet 312 on the outer wall of the shell-and-tube heat exchanger 31 , The shell side cavity is provided with a cooling liquid inlet 313 and a cooling liquid outlet 314 on the outer wall of the shell and tube heat exchanger 31 . One end of the water pump 32 is the water inlet end, and the other end is the water outlet end. The outer wall of the water tank 33 is provided with a water inlet 331 and a water outlet 332 connected to its inner cavity. The nozzle 34 is in the shape of a tube with two ends open, one end of which is the feeding end and the other end is the discharging end. The cooling pipe 35 is spirally wound on the nozzle 34 , and two ends of the cooling pipe 35 are respectively communicated with the pipe side inlet 311 of the shell and tube heat exchanger 31 and the water outlet end of the water pump 32 .

One end of the plastic extruder 2 is provided with an inlet, and the other end is provided with an outlet. The inlet of the plastic extruder 2 is communicated with the discharge port 112 of the feeding hopper 11, and the outlet of the plastic extruder 2 is communicated with the feed end of the nozzle 34. .

The cutting mechanism includes a motor B41 and a cutter 42 installed on the shaft of the motor B41. The cutter 42 is facing the discharge end of the nozzle 34. The motor B41 drives the cutter 42 to make a rotary motion to cut off the discharge end of the nozzle 34. continuous strips of plastic.

Preferably, the discharge cooling mechanism further includes cooling fans 36 disposed on opposite sides of the nozzle 34 .

Briefly describe the working process of the present utility model:

Before recycling waste plastic, do the following:

a. Start the electric heating plate 14 for preheating;

b. Start the motor A131 to make the two drums 121 of the crushing drum group rotate synchronously and reversely;

c. Power on the plastic extruder 2 to make it stand by;

d. Start the water pump 32 to make the cooling medium flow in the cooling pipe 35;

e. The cooling liquid is introduced into the shell side cavity of the shell and tube heat exchanger 31. After the cooling liquid fills the shell side cavity of the shell and tube heat exchanger 31, the flow rate of the cooling liquid input from the cooling liquid inlet 313 is maintained. Consistent with the coolant flow output from the coolant outlet 314;

f. Start the motor B41 to drive the cutter 42 to make a rotary motion.

1. Put the waste plastic into the inner cavity of the feed hopper 11 from the feed port 111 at the upper end of the feed hopper 11, the waste plastic is crushed by the two rollers 121 that rotate in opposite directions, and the waste plastic is crushed from the space between the two rollers 121. The strip-shaped gap falls on the electric heating plate, and the crushed waste plastic is heated on the electric heating plate 14 to melt, and the melted plastic drips from the drop port 16 along the slope of the electric heating plate 14, and after passing through the sieve plate 113, it flows out from the outlet. The material port 112 is discharged.

2. The melted plastic discharged from the discharge port 112 of the feeding hopper 11 enters the inner cavity of the plastic extruder 2 through the inlet of the plastic extruder 2, and is then discharged from the outlet of the plastic extruder 2 by pushing.

3. The liquid plastic discharged from the outlet of the plastic extruder 2 enters the inner cavity of the nozzle 34 through the feeding end of the nozzle 34, and moves to the discharging end of the nozzle 34 under the pushing action of the plastic extruder 2, and the liquid plastic is in the nozzle 34. During the process of moving in the inner cavity, the water circulating through the cooling pipe 35 is continuously taken away heat, and when it is discharged from the discharge end of the nozzle 34, it cools and hardens into a solid.

4. The strip-shaped solid plastic discharged from the discharge end of the nozzle 34 is cut into granular solid plastic by the cutter 42 .

Claims (7)

1. The waste plastic recycling device is characterized in that: it comprises a crushing and melting mechanism, a plastic extruder, a discharging cooling mechanism and a cutting mechanism; the crushing and melting mechanism, the plastic extruder and the discharging cooling mechanism are communicated successively; At the discharge end of the material cooling mechanism, to cut off the continuous strip of plastic discharged from the material cooling mechanism. 2. The waste plastic recycling device according to claim 1, characterized in that: the crushing and melting mechanism comprises a feeding hopper, a crushing roller group, a driving assembly and an electric heating plate; the upper end of the feeding hopper is provided with a feeding port, and the lower end is provided with an outlet The feed hopper is provided with a sieve plate for filtering impurities at the lower end of the inner cavity near the discharge port; the crushing drum group includes two drums, and the outer wall of the drum is evenly distributed with a plurality of nail teeth, and the two drums are respectively installed through the rotating shaft In the inner cavity of the feeding hopper, a strip-shaped gap is set between the two drums; the driving component is arranged outside the feeding hopper and is associated with the rotating shafts of the two drums to drive the two drums to rotate synchronously and reversely; the electric heating plate is inclined It is arranged in the inner cavity of the feeding hopper and located at the lower end of the crushing drum group, and a drop opening is formed between it and the inner cavity of the feeding hopper. 3. The waste plastic recycling device as claimed in claim 2, characterized in that: the driving component comprises a motor A, a gear A and a gear B; Connection; gear A and gear B are respectively installed on the rotating shafts of the two rollers and mesh with each other. 4. The waste plastic recycling device according to claim 2 or 3, wherein the discharging cooling mechanism comprises a shell-and-tube heat exchanger, a water pump, a water tank, a nozzle and a cooling pipe; the shell-and-tube heat exchanger is provided with The tube-side cavity and the shell-side cavity are not connected to each other. The tube-side cavity is provided with a tube-side inlet and a tube-side outlet on the outer wall of the shell-and-tube heat exchanger, and the shell-side cavity is on the outer wall of the shell-and-tube heat exchanger. There is a cooling liquid inlet and a cooling liquid outlet; one end of the water pump is the water inlet end, and the other end is the water outlet end; the outer wall of the water tank is provided with a water inlet and a water outlet connected to its inner cavity, and the water inlet is connected to the shell-and-tube heat exchanger. The outlet of the tube side is connected, and the water outlet is connected to the water inlet end of the water pump; the nozzle is in the shape of a tube with two open ends, one end of which is the feeding end and the other end is the discharging end; the cooling pipe is spirally coiled on the nozzle, and its two ends are respectively It is communicated with the tube side inlet of the shell and tube heat exchanger and the water outlet end of the water pump. 5 . The waste plastic recycling device according to claim 4 , wherein the discharging cooling mechanism further comprises cooling fans arranged on opposite sides of the nozzle. 6 . 6. The waste plastic recycling device as claimed in claim 5 is characterized in that: one end of the plastic extruder is provided with an inlet, the other end is provided with an outlet, the inlet of the plastic extruder is communicated with the discharge port of the feeding hopper, and the plastic The outlet of the extruder communicates with the feed end of the nozzle. 7 . The waste plastic recycling device according to claim 6 , wherein the cutting mechanism comprises a motor B and a cutter installed on the shaft of the motor B, and the cutter is facing the discharge end of the nozzle. 8 .

Images