PC plastic product recovery system

Abstract

The utility model discloses a PC plastic product recovery system which comprises a crushing mechanism, a polishing and cleaning mechanism, an impurity removal mechanism and a sorting mechanism, and the crushing mechanism is used for crushing PC plastic products into plastic particles; the grinding and cleaning mechanism comprises a hot washing machine and a grinding machine, an inlet of the hot washing machine is communicated with an outlet of the crushing mechanism, and an inlet of the grinding machine is communicated with an inlet of the hot washing machine; the impurity removal mechanism is communicated with an outlet of the grinding machine; and the sorting mechanism is communicated with an outlet of the impurity removal mechanism. The washing system for the PC plastic products has the advantages that foreign matter such as paint, adhesive stickers and printing ink on the surfaces of the PC plastic products can be removed through the cleaning and polishing procedures, and the PC plastic products are efficiently recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic product recycling, in particular to a PC plastic product recycling system. Background Art

[0002] PC plastic, or polycarbonate, is a thermoplastic engineering plastic with excellent comprehensive properties. Due to its excellent insulation and mechanical properties, PC plastic is widely used in the manufacture of housings, brackets, and insulating components for electronic and electrical products, such as mobile phone housings, computer monitor housings, sockets, and switches.

[0003] At present, the recycling of PC plastic products has the following problems: Since many PC plastic products have foreign matter such as paint, stickers, ink, etc. on the surface, it seriously affects the appearance and performance of PC recycled plastics, affecting the recycling and reuse of PC products. Utility Model Content

[0004] The purpose of this utility model is to overcome the above technical deficiencies and propose a PC plastic product recycling system to solve the technical problem in the prior art that foreign matter such as paint, stickers, ink, etc. on the surface of PC plastic products affects their recycling.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0006] The utility model provides a PC plastic product recycling system, comprising:

[0007] A crushing mechanism, wherein the crushing mechanism is used to crush the PC plastic product into plastic particles;

[0008] A grinding and cleaning mechanism, the grinding and cleaning mechanism comprising a hot washer and a grinder, the inlet of the hot washer being connected to the outlet of the crushing mechanism, and the inlet of the grinder being connected to the inlet of the hot washer;

[0009] a debris removal mechanism, the debris removal mechanism being in communication with an outlet of the grinder; and

[0010] The sorting mechanism is connected to the outlet of the impurity removal mechanism and is used to sort the materials according to the material and color of the materials discharged from the outlet of the impurity removal mechanism.

[0011] In some embodiments, the crushing mechanism includes a conveyor, a crusher, and a mixer, the outlet of the conveyor is connected to the inlet of the crusher, and the outlet of the crusher is connected to the inlet of the mixer.

[0012] In some embodiments, the crushing mechanism further comprises a first screw feeder, wherein an inlet of the first screw feeder is connected to an outlet of the crusher, and an outlet of the first screw feeder is connected to an inlet of the mixer.

[0013] In some embodiments, the polishing and cleaning mechanism further includes a second screw loader, the inlet of the second screw loader is connected to the outlet of the mixer, and the outlet of the second screw loader is connected to the inlet of the hot washer.

[0014] In some embodiments, the grinding and cleaning mechanism further includes a third screw loader, the inlet of the third screw loader is connected to the outlet of the hot washer, and the outlet of the third screw loader is connected to the inlet of the grinding machine.

[0015] In some embodiments, the impurity removal mechanism includes a fourth screw loader, a brine tank, a fifth screw loader and a clean water tank. The inlet of the fourth screw loader is connected to the outlet of the grinder, the outlet of the fourth screw loader is connected to the inlet of the brine tank, the inlet of the fifth screw loader is connected to the outlet of the brine tank, and the outlet of the fifth screw loader is connected to the inlet of the clean water tank.

[0016] In some embodiments, the impurity removal mechanism further includes a sixth screw loader and a dehydrator, the inlet of the sixth screw loader is connected to the outlet of the clean water tank, and the outlet of the sixth screw loader is connected to the inlet of the dehydrator.

[0017] In some embodiments, the sorting mechanism includes a material sorter and a color sorter. The inlet of the material sorter is connected to the outlet of the dehydrator. The color sorter is used to color sort the materials of different materials sorted by the material sorter.

[0018] In some embodiments, the sorting mechanism further includes a seventh spiral loader, the inlet of the seventh spiral loader is connected to the outlet of the dehydrator, and the outlet of the seventh spiral loader is connected to the inlet of the material sorter.

[0019] In some embodiments, the sorting mechanism further includes a dryer, which is used to dry the materials of different colors sorted by the color sorter separately.

[0020] Compared with the prior art, the beneficial effects of the PC plastic product recycling system provided by the present invention are as follows: when in use, the PC plastic product is first crushed into plastic particles by a crushing mechanism, and then the obtained plastic particles are introduced into a hot washing machine for hot washing. During hot washing, a cleaning agent is added to the hot washing machine, and then the cleaned plastic particles are introduced into a grinder for grinding. The grinder can grind off foreign matter such as paint, stickers, and ink on the surface of the plastic particles, and then the grinded material is introduced into a de-impurity mechanism for de-impurity, and then the de-impurity material is poured into a sorting mechanism, which sorts the material according to the material and color of the material. The present invention can remove foreign matter such as paint, stickers, and ink on the surface of PC plastic products through the cleaning and grinding process, thereby realizing efficient recycling of PC plastic products. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of a PC plastic product recycling system provided by one embodiment of the present utility model;

[0022] Figure 2 yes Figure 1 Structural diagram of the crushing mechanism in FIG;

[0023] Figure 3 yes Figure 1 Structural diagram of the grinding and cleaning mechanism;

[0024] Figure 4 yes Figure 1 Structural diagram of the impurity removal mechanism;

[0025] Figure 5 yes Figure 1 Structural diagram of the sorting mechanism in FIG.

[0026] Explanation of the accompanying drawings: 1-crushing mechanism, 11-conveyor, 12-crusher, 13-mixer, 14-first spiral feeder, 2-grinding and cleaning mechanism, 21-hot washing machine, 22-grinding machine, 23-second spiral feeder, 24-third spiral feeder, 3-impurity removal mechanism, 31-fourth spiral feeder, 32-brine tank, 33-fifth spiral feeder, 34-clean water tank, 35-sixth spiral feeder, 36-dehydrator, 4-sorting mechanism, 41-material sorting machine, 42-color sorter, 43-seventh spiral feeder, 44-drying machine. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] In order to solve the technical problem that foreign matter such as paint, stickers, ink, etc. on the surface of PC plastic products affects their recycling, the utility model provides a PC plastic product recycling system that can remove foreign matter such as paint, stickers, ink, etc. on the surface of PC plastic products and realize the recycling of PC plastic products.

[0029] See also Figure 1 , Figure 1 This is a structural diagram of a PC plastic product recycling system in one embodiment of the present invention. The PC plastic product recycling system includes a crushing mechanism 1, a grinding and cleaning mechanism 2, a debris removal mechanism 3 and a sorting mechanism 4.

[0030] The crushing mechanism 1 is used to crush PC plastic products into plastic particles.

[0031] The grinding and cleaning mechanism 2 includes a hot washer 21 and a grinder 22 . The inlet of the hot washer 21 is connected to the outlet of the crushing mechanism 1 , and the inlet of the grinder 22 is connected to the inlet of the hot washer 21 .

[0032] The impurity removal mechanism 3 is communicated with the outlet of the grinder 22 .

[0033] The sorting mechanism 4 is communicated with the outlet of the impurity removing mechanism 3 and is used to sort the materials discharged from the outlet of the impurity removing mechanism 3 according to the material and color of the materials.

[0034] During use, the PC plastic product is first crushed into plastic particles by the crushing mechanism 1, and then the obtained plastic particles are introduced into the hot washing machine 21 for hot washing. During hot washing, a cleaning agent is added to the hot washing machine 21, and then the cleaned plastic particles are introduced into the grinder 22 for grinding. The grinder 22 can grind off foreign matter such as paint, stickers, and ink on the surface of the plastic particles. The ground material is then introduced into the impurity removal mechanism 3 for impurity removal, and then the impurity-removed material is poured into the sorting mechanism 4. The sorting mechanism 4 sorts the material according to the material and color of the material. The utility model can remove foreign matter such as paint, stickers, and ink on the surface of PC plastic products through the cleaning and grinding process, thereby realizing efficient recycling of PC plastic products.

[0035] In one embodiment, see Figure 1 and Figure 2 The crushing mechanism 1 includes a conveyor 11, a crusher 12, and a mixer 13. The outlet of the conveyor 11 is connected to the inlet of the crusher 12, and the outlet of the crusher 12 is connected to the inlet of the mixer 13. When in use, PC plastic products are placed at the inlet of the conveyor 11. The PC plastic products are conveyed by the conveyor 11 to the crusher 12, where they are crushed into plastic particles. The plastic particles then enter the mixer 13 and are mixed evenly.

[0036] In this embodiment, the conveyor 11 is a belt conveyor. The motor power of the belt conveyor is 2.8KW. The effective length of the belt of the belt conveyor is 8.5 meters, the effective width of the belt is 2 meters, the thickness of the belt is 8mm, and the belt is made of PVC. Casters and legs are installed at the bottom of the belt conveyor. There are threaded holes above the legs, which can be telescopically adjusted in height.

[0037] In this embodiment, the power of the crusher 12 is 90KW. The crusher contains a screen with an inner hole diameter of 20mm and a thickness of 18mm. There are 8 movable knives and 6 fixed knives. The blade material is SKD11 and the rotor speed is 650rpm.

[0038] In one embodiment, see Figure 1 and Figure 2 The crushing mechanism 1 further includes a first screw feeder 14 , the inlet of the first screw feeder 14 is connected to the outlet of the crusher 12 , and the outlet of the first screw feeder 14 is connected to the inlet of the mixer 13 .

[0039] In one embodiment, see Figure 1 and Figure 3 The polishing and cleaning mechanism 2 also includes a second screw feeder 23 , the inlet of the second screw feeder 23 is connected to the outlet of the mixer 13 , and the outlet of the second screw feeder 23 is connected to the inlet of the hot washer 21 .

[0040] In one embodiment, see Figure 1 and Figure 3 The grinding and cleaning mechanism 2 also includes a third screw feeder 24 , the inlet of the third screw feeder 24 is connected to the outlet of the hot washer 21 , and the outlet of the third screw feeder 24 is connected to the inlet of the grinder 22 .

[0041] In this embodiment, the grinder 22 is a horizontal grinder, and a special potion is added during the grinding process. The special potion is composed of ingredients such as cleaning agent, soda ash, dishwashing liquid, baking soda, etc. (the pH value of the potion must be between 8-9, and the alkalinity cannot be too strong. Too strong will cause the performance of the PC crushed material to deteriorate a lot, seriously affecting its recycling. It cannot be too low either. If it is too low, the oil stains on the surface of the crushed material cannot be removed completely).

[0042] The number of grinders 22 is 4, which can ensure that the crushed material can be hot washed and ground for 6 hours while the water washing production line can continue to produce.

[0043] In one embodiment, see Figure 1 and Figure 4The impurity removal mechanism 3 includes a fourth screw feeder 31, a brine tank 32, a fifth screw feeder 33 and a clean water tank 34. The inlet of the fourth screw feeder 31 is connected to the outlet of the grinder 22, the outlet of the fourth screw feeder 31 is connected to the inlet of the brine tank 32, the inlet of the fifth screw feeder 33 is connected to the outlet of the brine tank 32, and the outlet of the fifth screw feeder 33 is connected to the inlet of the clean water tank 34.

[0044] In this embodiment, the brine used in the brine tank 32 is recycled. Two brine tanks 32 are used, one brine tank 32 is used to clean out plastics other than PC, and the other is used to collect submerged materials. It is connected to the collection pool and is used to filter impurities in the brine. The filtered impurities are passed through a filter screen, carbon black, etc. to ensure that the impurities are completely removed.

[0045] Since the density of PC plastic products is usually greater than that of brine, and the density of impurities is usually less than that of brine, the product can be density-sorted in the brine tank 32 to screen out PC plastic particles.

[0046] In one embodiment, see Figure 1 and Figure 4 The impurity removal mechanism 3 also includes a sixth screw feeder 35 and a dehydrator 36 . The inlet of the sixth screw feeder 35 is connected to the outlet of the clean water tank 34 , and the outlet of the sixth screw feeder 35 is connected to the inlet of the dehydrator 36 .

[0047] In one embodiment, see Figure 1 and Figure 5 The sorting mechanism 4 includes a material sorter 41 and a color sorter 42. The inlet of the material sorter 41 is connected to the outlet of the dehydrator 36. The color sorter 42 is used to color sort the materials of different materials sorted by the material sorter 41.

[0048] In this embodiment, the material sorting machine is used to sort out non-PC materials, such as PE, ABS, PS and other materials, while the color sorting machine is used to sort out different PC colors, thereby greatly improving the utilization value of recycled PC.

[0049] In one embodiment, see Figure 1 and Figure 5 The sorting mechanism 4 also includes a seventh spiral feeder 43 , the inlet of the seventh spiral feeder 43 is connected to the outlet of the dehydrator 36 , and the outlet of the seventh spiral feeder 43 is connected to the inlet of the material sorter 41 .

[0050] In one embodiment, see Figure 1 and Figure 5The sorting mechanism 4 further includes a dryer 44, which is used to dry the materials of different colors sorted by the color sorter 42 respectively.

[0051] In this embodiment, the screw diameter of all the screw feeders is 400 mm, the motor power of the screw feeder is 4.5 kW, the length of the screw feeder is 3.5 meters, the screw of the screw feeder is made entirely of stainless steel, the barrel thickness of the screw feeder is 3.4 mm, and the spiral blade thickness of the screw feeder is 3.4 mm.

[0052] In order to better understand the present invention, the following Figures 1 to 5 The technical solution of the utility model is described in detail: when in use, the PC plastic product is first crushed into plastic particles by the crushing mechanism 1, and then the obtained plastic particles are introduced into the hot washing machine 21 for hot washing. During hot washing, a cleaning agent is added to the hot washing machine 21, and then the cleaned plastic particles are introduced into the grinder 22 for grinding. The grinder 22 can grind off foreign matter such as paint, stickers, and ink on the surface of the plastic particles. The polished material is then introduced into the impurity removal mechanism 3 for impurity removal, and the impurity-removed material is poured into the sorting mechanism 4. The sorting mechanism 4 sorts the material according to the material and color of the material. The utility model can remove foreign matter such as paint, stickers, and ink on the surface of PC plastic products through the cleaning and polishing process, thereby realizing efficient recycling of PC plastic products.

[0053] The utility model can separate non-PC plastics and mixed-color PC plastics while crushing the washed products, thereby ensuring the purity and color uniformity of the PC washed flakes and improving the value of the products to the greatest extent.

[0054] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A PC plastic product recycling system, characterized in that: include: A crushing mechanism, wherein the crushing mechanism is used to crush the PC plastic product into plastic particles; A grinding and cleaning mechanism, the grinding and cleaning mechanism comprising a hot washer and a grinder, the inlet of the hot washer being connected to the outlet of the crushing mechanism, and the inlet of the grinder being connected to the inlet of the hot washer; a debris removal mechanism, the debris removal mechanism being in communication with an outlet of the grinder; and The sorting mechanism is connected to the outlet of the impurity removal mechanism and is used to sort the materials according to the material and color of the materials discharged from the outlet of the impurity removal mechanism.

2. The PC plastic product recycling system according to claim 1, characterized in that: The crushing mechanism includes a conveyor, a crusher and a mixer. The outlet of the conveyor is communicated with the inlet of the crusher, and the outlet of the crusher is communicated with the inlet of the mixer.

3. The PC plastic product recycling system according to claim 2, characterized in that: The crushing mechanism further includes a first screw feeder, wherein the inlet of the first screw feeder is communicated with the outlet of the crusher, and the outlet of the first screw feeder is communicated with the inlet of the mixer.

4. The PC plastic product recycling system according to claim 2, characterized in that: The polishing and cleaning mechanism further includes a second screw loader, the inlet of the second screw loader is communicated with the outlet of the mixer, and the outlet of the second screw loader is communicated with the inlet of the hot washer.

5. The PC plastic product recycling system according to claim 1, characterized in that: The polishing and cleaning mechanism further includes a third screw loader, the inlet of the third screw loader is communicated with the outlet of the hot washer, and the outlet of the third screw loader is communicated with the inlet of the polisher.

6. The PC plastic product recycling system according to claim 1, characterized in that: The impurity removal mechanism includes a fourth screw loader, a brine tank, a fifth screw loader and a clean water tank. The inlet of the fourth screw loader is connected to the outlet of the grinder, the outlet of the fourth screw loader is connected to the inlet of the brine tank, the inlet of the fifth screw loader is connected to the outlet of the brine tank, and the outlet of the fifth screw loader is connected to the inlet of the clean water tank.

7. The PC plastic product recycling system according to claim 6, characterized in that: The impurity removal mechanism further includes a sixth screw loader and a dehydrator. The inlet of the sixth screw loader is communicated with the outlet of the clean water tank, and the outlet of the sixth screw loader is communicated with the inlet of the dehydrator.

8. The PC plastic product recycling system according to claim 7, characterized in that: The sorting mechanism includes a material sorter and a color sorter. The inlet of the material sorter is connected to the outlet of the dehydrator. The color sorter is used to color sort the materials of different materials sorted by the material sorter.

9. The PC plastic product recycling system according to claim 8, characterized in that: The sorting mechanism further includes a seventh spiral loader, the inlet of the seventh spiral loader is connected to the outlet of the dehydrator, and the outlet of the seventh spiral loader is connected to the inlet of the material sorter.

10. The PC plastic product recycling system according to claim 8, characterized in that: The sorting mechanism further includes a dryer, which is used to dry the materials of different colors sorted by the color sorter separately.

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