Waste plastic bottle barrel sorting machine

Abstract

The utility model discloses a waste plastic bottle and barrel sorting machine which comprises a winnowing separation device, the winnowing separation device comprises a winnowing pipeline which is arranged obliquely upwards, the lower end of the winnowing pipeline is connected with a winnowing feeding hopper, the higher end of the winnowing pipeline is provided with a light bottle outlet, and the winnowing feeding hopper is connected with a light bottle outlet. The winnowing pipeline is connected with an air blower for blowing air from the winnowing feed hopper to the bottle outlet of the light bottle; heavy bottle falling-out pipelines are arranged on the lower side face of the winnowing pipeline side by side, and the high ends of the heavy bottle falling-out pipelines communicate with the winnowing pipeline. An obliquely-arranged bottle screening table is arranged below the lower end of the heavy bottle falling-out pipeline, a screening opening for small bottles to fall out is formed in the bottle screening table, and a bottle blocking brush is arranged on the bottle removing side, located on the screening opening, of the bottle screening table. The small bottle sorting device is more thorough in small bottle sorting, simple in structure and low in energy consumption.

Description

Technical Field

[0001] The utility model relates to the technical field of article screening, in particular to a waste plastic bottle barrel sorting machine. Background Art

[0002] Discarded plastic bottles and plastic barrels are one of the common recyclable resources in daily life, and they belong to the category of waste plastics. The vast majority of discarded plastic bottles and barrels are various mineral water bottles and beverage bottles, and a small number are seasoning barrels and other types of bottles and barrels. Based on their relatively similar shapes and materials, they are obviously different from other discarded plastics, so discarded plastic bottles and barrels are generally collected separately for subsequent treatment. Among them, in the subsequent treatment, because the material of the small bottle body is generally better than that of the large bottle and barrel, the recycling value is higher, and the number accounts for the largest proportion, so the first step in the subsequent treatment of discarded plastic bottles and barrels is to sort out the small bottles according to size. At present, the sorting is mostly done by wind selection, that is, based on the weight difference between the large and small bottles and barrels, the light-weight small bottles are easily separated from the large bottles and barrels under the action of wind to achieve the sorting effect. However, in actual operations, it is found that some small bottles still have residual liquid or other impurities, which will affect the overall weight of the small bottles, resulting in the small bottles with residues being sorted together with the large bottles and barrels, and the sorting effect is not ideal. For this reason, it is necessary to further improve the wind sorting to improve the above situation. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a waste plastic bottle barrel sorting machine which can sort small bottles more thoroughly and has a simple structure and low energy consumption.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a waste plastic bottle barrel sorting machine, including an air separation device, the air separation device includes an air separation pipe arranged obliquely upward, the lower end of the air separation pipe is connected with an air separation feed hopper, the high end of the air separation pipe is provided with a light bottle outlet, the air separation pipe is connected with a blower for blowing air from the air separation feed hopper to the light bottle outlet; heavy bottle falling pipes are arranged side by side at the lower side of the air separation pipe, the high end of the heavy bottle falling pipe is connected to the air separation pipe; an inclined bottle screening platform is provided below the lower end of the heavy bottle falling pipe, the bottle screening platform is provided with a screening port for falling out small bottles, and a bottle blocking brush is provided on the bottle removing side of the screening port on the bottle screening platform.

[0005] As a preferred technical solution, a flexible pad for reducing the bouncing of the bottle barrel is laid on the table surface of the bottle screening table outside the screening opening.

[0006] As a preferred technical solution, a vibrator is installed on the bottle screening table.

[0007] As a preferred technical solution, two screening openings are sequentially arranged on the bottle screening platform along the rolling direction of the bottle barrel.

[0008] As a preferred technical solution, the air selection pipe includes a strong wind section and a weak wind section arranged in sequence from the low end to the high end, the cross-sectional area of ​​the weak wind section is larger than that of the strong wind section, and the high end of the heavy bottle falling pipe is connected to the weak wind section.

[0009] As a preferred technical solution, a small bottle collection container is provided below the screening port, and a large bottle collection container is provided below the lower end of the bottle screening platform.

[0010] As a preferred technical solution, a pre-selection conveying device is provided upstream of the air separation device, and the pre-selection conveying device is used to convey bottle barrels to the air separation feeding hopper.

[0011] Due to the adoption of the above technical scheme, the waste plastic bottle barrel sorting machine includes an air separation device, the air separation device includes an air separation pipe arranged obliquely upward, the lower end of the air separation pipe is connected with an air separation feed hopper, the high end of the air separation pipe is provided with a light bottle outlet, the air separation pipe is connected with a blower for blowing air from the air separation feed hopper to the light bottle outlet; heavy bottle falling pipes are arranged side by side at the lower side of the air separation pipe, the high end of the heavy bottle falling pipe is connected to the air separation pipe; an inclined bottle screening platform is provided below the lower end of the heavy bottle falling pipe, the bottle screening platform is provided with a screening port for dropping out small bottles, and the bottle screening platform is provided with a bottle blocking brush on the bottle removal side of the screening port. The utility model uses wind power to make the bottle barrel move along the oblique air selection pipeline to the light bottle outlet. The lighter small bottles are output and collected from the light bottle outlet. The heavier large bottles and barrels, as well as the small bottles with residues, fall downward against the lower side wall of the air selection pipeline when their own weight can overcome the wind power, and finally enter the heavy bottle drop-out pipeline to form output. The output heavy bottles fall onto the bottle screening platform and roll from the high end to the low end of the bottle screening platform. When the rolling small bottles reach the screening port, they are blocked by the flexible bottle-blocking brush, and can form a posture with the length direction perpendicular to the rolling direction, and fall out from the screening port. The large bottles and barrels are blocked by the bottle-blocking brush, and the size is not enough to fall into the screening port, so they are output along the bottle screening platform to its low end. At this point, both empty small bottles and small bottles with residues are sorted out, and the small bottles are sorted more thoroughly. The utility model has a simple structure, mainly uses a large power of a blower, and has low overall energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0013] Figure 1 It is a structural principle diagram of an embodiment of the utility model;

[0014] Figure 2yes Figure 1 An enlarged schematic diagram of the structure at the bottle screening station;

[0015] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure of the two screening ports;

[0016] Figure 4 yes Figure 2 Schematic diagram of the A-direction structure.

[0017] In the figure: 1-air separation device; 11-air separation pipeline; 111-strong wind section; 112-weak wind section; 12-air separation feed hopper; 13-light bottle outlet; 2-heavy bottle drop-out pipeline; 3-bottle screening table; 31-screening port; 32-bottle blocking brush; 33-flexible pad; 34-vibrator; 4-small bottle collection container; 5-large bottle collection container; 6-pre-selection conveying device; 91-small bottle; 92-large bottle barrel. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and examples. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Needless to say, those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are illustrative in nature and are not intended to limit the scope of protection of the claims.

[0019] like Figure 1 As shown, the waste plastic bottle barrel sorting machine includes an air separation device 1, which separates bottle barrels of different weights by wind. The air separation device 1 in this embodiment includes an air separation pipeline 11 arranged obliquely upward, a wind selection feed hopper 12 is connected to the lower end of the air separation pipeline 11, a light bottle outlet 13 is provided at the upper end of the air separation pipeline 11, and a blower is connected to the air separation pipeline 11 to blow air from the wind selection feed hopper 12 to the light bottle outlet 13.

[0020] After the bottle barrel enters the air separation pipe 11 from the air separation feed hopper 12, it moves toward the light bottle outlet 13 under the action of wind force, and the wind force in the air separation pipe 11 gradually decreases due to the influence of resistance along the way. Since the small bottle 91 is light in weight, even the weakened wind force is still enough to transport it to the light bottle outlet 13 for output. However, the heavier large bottle barrel 92 and the small bottle 91 with residues are not enough to be transported out by the weakened wind force due to their large weight, so they will be detained and fall back at the lower side wall of the air separation pipe 11, realizing the first sorting operation of the small bottle 91 in this embodiment. Among them, the blower blows air on the side of the air separation feed hopper 12 away from the light bottle outlet 13. The structural principle of the blower and the connection with the pipeline are easily obtained by those skilled in the art based on conventional technical means, and will not be repeated here and are not shown in the figure.

[0021] Preferably, the air selection duct 11 includes a strong wind section 111 and a weak wind section 112 which are arranged in sequence from the low end to the high end. The cross-sectional area of ​​the weak wind section 112 is larger than that of the strong wind section 111. The wind force in the latter half is further weakened by thickening, so that the heavy large bottles and barrels 92 and the small bottles 91 with residues can fall back better.

[0022] The lower side of the air selection duct 11 is provided with a heavy bottle drop-out duct 2 in parallel, and the high end of the heavy bottle drop-out duct 2 is connected to the air selection duct 11. Based on the strong and weak wind sections 112 in this embodiment, the high end of the heavy bottle drop-out duct 2 is connected to the weak wind section 112. Therefore, the heavy bottles falling back at the lower side wall of the air selection duct 11 can be output along the heavy bottle drop-out duct 2.

[0023] like Figures 1 to 4 As shown, a tilted bottle screening platform 3 is provided below the lower end of the heavy bottle falling-out pipe 2, and a screening opening 31 for dropping out small bottles 91 is provided on the bottle screening platform 3. A bottle blocking brush 32 is provided on the bottle screening platform 3 at the bottle removal side of the screening opening 31. The heavy bottles falling out of the heavy bottle falling-out pipe 2 arrive at the bottle screening platform 3, and under the tilted guidance of the bottle screening platform 3, the heavy bottles roll down along the bottle screening platform 3. When rolling through the screening opening 31, as shown in FIG. Figure 3As shown, the small bottle 91 is blocked by the bottle blocking brush 32. The blocking here not only weakens the rolling motion of the small bottle 91, but also corrects the posture of the obliquely rolling small bottle 91. Finally, the small bottle 91 can smoothly fall out of the screening port 31 to achieve the second sorting of the small bottle 91; while the large bottle barrel 92 is less blocked by the bottle blocking brush 32 and is not enough to fall out of the screening port 31, so it can continue to roll downward along the bottle screening platform 3 until it is output from its lower end. In this process, even if the large bottle barrel 92 is seated at the screening port 31 due to its slow rolling speed and forms a stagnation, it is easy to continue rolling under the collision of subsequent bottles and barrels, and the result of its output from the lower end remains unchanged.

[0024] Based on the above principle, the height of the bottle blocking brush 32 should have a significant blocking effect on the small bottles 91 but a small blocking effect on the large bottles and barrels 92, preferably 20 to 25 mm; the screening port 31 should facilitate the falling of the small bottles 91 while the large bottles and barrels 92 are not easily retained here, and its width is preferably 70 to 75 mm.

[0025] Preferably, if Figure 1 As shown, a small bottle collecting container 4 is provided below the screening port 31, and a large bottle collecting container 5 is provided below the lower end of the bottle screening platform 3, so as to collect small bottles 91 with residues and large bottles and barrels 92 respectively.

[0026] Preferably, if Figure 3 As shown, a flexible pad 33 for reducing the bouncing of the bottle barrel is laid on the surface of the bottle screening platform 3 outside the screening opening 31, so that after the vial 91 falls on the bottle screening platform 3, it can basically form a continuous rolling in a manner of sticking to the bottle screening platform 3, ensuring that it can be smoothly discharged from the screening opening 31. The flexible pad 33 can be made of materials such as felt or thin sponge.

[0027] Preferably, if Figure 4 As shown, a vibrator 34 is installed on the bottle screening platform 3, and through the vibration, the bottle barrel is promoted to roll well on the bottle screening platform 3. Preferably, two screening ports 31 are sequentially arranged on the bottle screening platform 3 along the rolling direction of the bottle barrel to further ensure that the vials 91 can be effectively screened out. The vibrator 34 is a well-known and commonly used technology, and its structural principle is not repeated here.

[0028] like Figure 1 As shown, a pre-selection conveying device 6 is provided upstream of the wind separation device 1, and the pre-selection conveying device 6 is used to convey bottle barrels to the wind separation feed hopper 12. The pre-selection conveying device 6 can form a buffer for the feed at the wind separation feed hopper 12, and can also be used to facilitate manual labor to screen out wastes such as oil barrels that are obviously different from other bottle barrels. If necessary, square bottle barrels with poor rolling properties can be screened out.

[0029] The present invention uses wind power to sort the light and heavy bottle barrels, and the output light bottles are all small bottles 91. After the heavy bottles fall on the bottle screening platform 3, the small bottles 91 are screened out by the screening opening 31, so that all small bottles 91 can be sorted out, and the small bottles 91 are sorted more thoroughly. The overall structure of this embodiment is simple and the energy consumption is low.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. Waste plastic bottle barrel sorting machine, including wind separation device, characterized by: The air separation device includes an air separation duct arranged obliquely upward, the lower end of the air separation duct is connected to a air separation feed hopper, the high end of the air separation duct is provided with a light bottle outlet, and the air separation duct is connected to a blower for blowing air from the air separation feed hopper to the light bottle outlet; heavy bottle drop-out pipes are arranged side by side at the lower side of the air separation duct, the high end of the heavy bottle drop-out pipe is connected to the air separation duct; an inclined bottle screening platform is provided below the lower end of the heavy bottle drop-out pipe, the bottle screening platform is provided with a screening port for dropping out small bottles, and a bottle blocking brush is provided on the bottle removal side of the screening port on the bottle screening platform.

2. The waste plastic bottle barrel sorting machine according to claim 1, characterized in that: A flexible pad for reducing the bouncing of bottles and barrels is laid on the table surface of the bottle screening table outside the screening opening.

3. The waste plastic bottle barrel sorting machine according to claim 1, characterized in that: A vibrator is installed on the bottle screening platform.

4. The waste plastic bottle barrel sorting machine according to claim 1, characterized in that: The bottle screening platform is provided with two screening openings in sequence along the rolling direction of the bottle barrel.

5. The waste plastic bottle barrel sorting machine according to claim 1, characterized in that: The air selection pipeline includes a strong wind section and a weak wind section arranged in sequence from the low end to the high end. The cross-sectional area of ​​the weak wind section is larger than that of the strong wind section. The high end of the heavy bottle falling pipeline is connected to the weak wind section.

6. The waste plastic bottle barrel sorting machine according to claim 1, characterized in that: A small bottle collecting container is arranged below the screening port, and a large bottle collecting container is arranged below the lower end of the bottle screening platform.

7. The waste plastic bottle barrel sorting machine according to claim 1, characterized in that: A pre-selection conveying device is provided upstream of the air selection and separation device, and the pre-selection conveying device is used to convey bottle barrels to the air selection feeding hopper.

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