Bottle brick sorting treatment method

Abstract

The invention relates to a bottle brick sorting treatment method which comprises the following steps that bottle bricks are conveyed to a scattering, slag screening and sorting all-in-one machine, screened bottle bodies enter a first material distributing machine and are conveyed to a material sorting machine, PET material bottles are sorted out, the PET material bottles enter a label removing machine, the bottle bodies without labels are conveyed to a cleaning machine and are conveyed to a color sorting machine, and the bottle bodies with set colors are screened out. Blue bottle bodies and transparent bottle bodies screened out by the color sorter are respectively treated, the bottle pieces after being treated by the chopper are fed into the bottle piece hot washing machine by the screw feeder to be washed, then the bottle pieces are treated by the rinsing machine, and the treated bottle pieces enter the drying and granulating system. The scattering, slag screening and sorting all-in-one machine is adopted, the bottle brick scattering, slag screening and bottle screening functions are integrated, the structure is compact, the number of equipment is reduced, the step of manual screening is omitted, the production efficiency can be improved, the equipment functions are complete, and continuous large-scale treatment can be conducted on bottle bricks.

Description

Technical Field

[0001] The invention relates to the technical field of plastic bottle recycling, and in particular to a bottle brick sorting and processing method. Background Art

[0002] Waste plastic bottles (such as PET bottles commonly seen in daily life) can be reused after recycling. In order to save space during the recycling process, the raw bottles are usually flattened and stored after being packaged, which is called bottle bricks. In the later processing, the bottle bricks are first sent to the scattering machine, and the subpackages are broken up by scratching the bottle bricks with high-speed sharp blades. Then they are conveyed to the screening machine via a conveyor to screen out fine slag and bottle caps, and then large bottles and large pieces of debris are removed by manual sorting. Then the qualified bottles are conveyed to the label removal machine, the material distribution machine, the sorting machine, and the shredder in turn, and then conveyed to the hot boiling pot for hot washing (intermittent) via a conveyor, and then enter the drying and granulation system after rinsing. This method requires a large number of equipment and a lot of manual labor, which is not suitable for large-scale processing. Summary of the invention

[0003] The purpose of the present invention is to provide a bottle brick sorting and processing method to solve the problem that the existing processing method requires much equipment and manpower.

[0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] A bottle brick sorting and processing method comprises the following steps: the bottle bricks are conveyed to a crushing and screening integrated machine, the screened bottles enter a first material distribution machine via a first conveyor, the first material distribution machine sequentially conveys the bottles to a material sorting machine, PET bottles are sorted out, the PET bottles enter a label removal machine to remove labels, the bottles without labels are conveyed to a cleaning machine via a second conveyor, the washed bottles are conveyed to a second material distribution machine via a third conveyor, the second material distribution machine sequentially conveys the bottles to a color sorting machine, bottles of set colors are screened out, the blue bottles and transparent bottles screened out by the color sorting machine are processed respectively, the blue bottles are conveyed to a first manual sorting and inspection conveying platform via a fourth conveyor, and after manual inspection, they are conveyed to a first shredder, the shredded bottle chips are conveyed to a first bottle chip hot washing machine by a first spiral feeder, the bottle chips are cleaned, and then processed by a first rinsing machine, and the processed bottle chips enter a first drying and granulation system;

[0006] The transparent bottles are sent to the second manual sorting and inspection conveying platform via the fifth conveyor. After manual inspection, they are sent to the second shredder. The shredded bottle pieces are sent to the second bottle piece hot washing machine by the second screw feeder. The bottle pieces are cleaned and then processed by the second rinsing machine. The processed bottle pieces enter the second drying and granulation system.

[0007] Furthermore, bottles that do not meet the color requirements are manually taken out on the first manual sorting, inspection and conveying platform and the second manual sorting, inspection and conveying platform.

[0008] Further, before the bottle bricks are processed, the bundling and packing belts are removed and the bottle bricks are fed into the disintegrating, slag screening and sorting integrated machine through a bottle brick conveyor.

[0009] Further, when the bottle bricks enter the disintegrating, slag screening and sorting integrated machine, they are first disintegrated. Fine slag and bottle caps are screened out in the slag screening area, and the bottle bodies are screened out in the bottle screening area.

[0010] Further, the disintegrating, slag screening and sorting integrated machine includes a cylinder body and a driving mechanism. The cylinder body is driven to rotate by the driving mechanism. One end of the cylinder body is a feed inlet and the other end is a discharge outlet. The cylinder body includes a disintegrating cylinder, a slag screening cylinder and a bottle screening cylinder. The disintegrating cylinder, the slag screening cylinder and the bottle screening cylinder are arranged in sequence from the feed inlet to the discharge outlet. A spiral fin is arranged on the inner wall of the cylinder body along the axial direction of the cylinder body for advancing the material; a plurality of top-dispersing bodies are arranged on the inner wall of the cylinder body along the axial direction of the cylinder body for dispersing the material; a plurality of slag screening holes are arranged in the slag screening area of the slag screening cylinder for filtering out fine slag and bottle caps; a plurality of bottle screening holes are arranged in the bottle screening area of the bottle screening cylinder for filtering out the bottle bodies.

[0011] Further, the aperture of the bottle screening holes is larger than that of the slag screening holes, and the length of the bottle screening cylinder is greater than that of the slag screening cylinder.

[0012] Further, a plurality of lifting plates are arranged on the inner walls of the disintegrating cylinder, the slag screening cylinder and the bottle screening cylinder. The lifting plates are perpendicular to the inner wall of the cylinder and are inclined with respect to the axis direction of the cylinder body.

[0013] Further, when the bottle bodies are being cleaned in the cleaning machine, alkaline spray cleaning water at a certain temperature is added to clean the sundries on the bottle bodies and discharge them through the screening holes.

[0014] Further, caustic liquor and steam at a temperature higher than 95 degrees are added to the first spiral feeder and / or the first bottle chip hot washer.

[0015] Further, caustic liquor and steam at a temperature higher than 95 degrees are added to the second spiral feeder and / or the second bottle chip hot washer.

[0016] Advantages of the present invention:

[0017] In the bottle brick sorting and processing method of the present invention, an integrated machine for dispersing and screening is used to integrate the functions of dispersing, screening and bottle screening of bottle bricks into one cylinder, replacing multiple existing devices. The structure is compact, the number of devices is reduced, and the steps of manually screening large bottles and large pieces of debris are omitted, which can improve the dispersing and screening efficiency. The integrated machine for dispersing and screening cooperates with other equipment, such as material sorting machine, label removal machine, cleaning machine, color sorting machine, shredder, hot washing machine, and rinsing machine to realize the functions of PET material bottle screening, label removal, cleaning, selecting bottles of set colors, shredding, hot washing and rinsing. Finally, the clean bottle pieces are sent to the drying and granulation system. The bottle brick sorting and processing method of the present invention can continuously process bottle bricks and is suitable for large-scale production processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a flow chart of the bottle brick sorting and processing method of the present invention;

[0019] Figure 2 It is a schematic diagram of the cylinder structure of the integrated machine for breaking up and screening residues;

[0020] Figure 3 It is a schematic diagram of the structure of the cylinder after it is cut open.

[0021] The names corresponding to the marks in the figure are:

[0022] 11. Breaking cylinder; 12. Screening cylinder; 121. Screening hole; 13. Screen bottle cylinder; 131. Screen bottle hole; 14. Tail end cylinder; 15. Wheel belt; 16. Top scattering body; 17. Spiral sheet; 18. Lifting plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] A bottle brick sorting and processing method, such as Figure 1 As shown, the following steps are included:

[0025] (1) Before the bottle bricks are processed, the strapping tape is removed and the bricks are sent to the all-in-one machine for breaking up, screening and sorting through the bottle brick conveyor. The bottle bricks are conveyed to the all-in-one machine for breaking up, screening and sorting, where they are first broken up, and the fine residue and bottle caps are screened out in the screening area, and the bottles that meet the requirements are screened out in the bottle screening area. The screened bottles that meet the requirements enter the first distribution machine via the first conveyor, and the large bottles and debris that do not meet the requirements are discharged from the outlet of the all-in-one machine for breaking up, screening and sorting. The first conveyor is equipped with a silo, which controls the unloading of the bottles, so that the first conveyor can continuously and evenly transport the bottles to the first distribution machine.

[0026] (2) The first material distribution machine transports the bottles to the material sorting machine in sequence, and the bottles are laid flat on the first material distribution machine without being overlapped.

[0027] (3) The material sorting machine sorts out PET material bottles, and the PET material bottles are sent to the label removing machine, while the non-PET material bottles are processed and collected separately.

[0028] (4) The PET material bottles enter the label removing machine to remove the labels. The labels are removed and separated, and the label-free bottle bodies are sent to the cleaning machine via the second conveyor. When the bottle bodies are being cleaned in the cleaning machine, alkaline spray cleaning water at a certain temperature is added to wash away the sundries on the bottle bodies and discharge them through the sieve holes, which are collected by the collection tank below.

[0029] (5) The cleaned bottle bodies are sent to the second cloth-feeding machine via the third conveyor, and the second cloth-feeding machine sequentially conveys the bottle bodies to the color sorter. The third conveyor is also equipped with a corresponding storage bin, and the storage bin controls the feeding of the bottle bodies, enabling the third conveyor to continuously and evenly convey the bottle bodies to the second cloth-feeding machine. The second cloth-feeding machine sends the bottle bodies to the color sorter in a flat and non-overlapping state.

[0030] (6) The color sorter screens out the bottle bodies of the set colors, usually blue bottle bodies and transparent bottle bodies. For the blue bottle bodies and transparent bottle bodies screened out by the color sorter, the remaining bottle bodies of other colors can be processed according to the situation. In this embodiment, the color sorter adopts the first color sorter and the second color sorter. The first color sorter screens out the blue and transparent ones, and the others; the blue and transparent bottle bodies are then screened by the second color sorter to separate the two and are processed separately and synchronously.

[0031] (7-1) The blue bottle bodies are sent to the first manual sorting and inspection conveyor platform via the fourth conveyor. After manual inspection, they are sent to the first shredder. On the first manual sorting and inspection conveyor platform, the bottle bodies that do not meet the color requirements are taken out manually (the probability of manually finding non-blue bottle bodies is relatively low), ensuring that all the blue bottle bodies entering the first shredder meet the requirements.

[0032] (7-2) The bottle chips shredded by the first shredder are sent to the first bottle chip hot washing machine by the first screw feeder for washing the bottle chips, and then processed by the first rinsing machine. The cleaned bottle chips after processing enter the first drying and granulating system. Alkaline solution and steam above 95 degrees Celsius (°C) are added to the first screw feeder and the first bottle chip hot washing machine to ensure the temperature requirements of the bottle chips in the bottle chip hot washing machine during the friction washing process.

[0033] (8-1) The transparent bottle bodies are sent to the second manual sorting and inspection conveyor platform via the fifth conveyor. After manual inspection, they are sent to the second shredder. On the second manual sorting and inspection conveyor platform, the bottle bodies that do not meet the color requirements are taken out manually (the probability of manually finding non-transparent bottle bodies is relatively low), ensuring that all the transparent bottle bodies entering the second shredder meet the requirements.

[0034] (8-2) The bottle chips shredded by the second shredder are fed into the second bottle chip hot washer by the second screw feeder for cleaning the bottle chips, and then processed by the second rinsing machine. The cleaned bottle chips after processing enter the second drying and pelletizing system. Alkaline solution and steam at a temperature above 95 degrees are added to the second screw feeder and the second bottle chip hot washer to ensure the temperature requirement of the bottle chips in the friction washing process in the bottle chip hot washer. If necessary, alkaline solution and steam at a temperature above 95 degrees can also be added to either one of them as required.

[0035] The above are the main process steps of the bottle brick sorting and processing method of the present invention. The integrated machine for dispersing, screening and separating residues is a newly designed device, and the rest of the devices are those in the prior art. The bottle chip hot washer replaces the hot cooking pot hot washing in the existing process to achieve continuous hot washing. The structure and principle of the integrated machine for dispersing, screening and separating residues will be described below.

[0036] The integrated machine for dispersing, screening and separating residues includes a cylinder body and a driving mechanism, and the cylinder body is driven to rotate by the driving mechanism. Figure 2 and 3 The cylinder body part is shown. One end of the cylinder body is a feed inlet, which is docked with a conveyor, and the other end is a discharge port for discharging large bottle bodies and sundries. The cylinder body includes a dispersing cylinder 11, a residue screening cylinder 12, a bottle screening cylinder 13, and a tail end cylinder 14. The dispersing cylinder 11, the residue screening cylinder 12, the bottle screening cylinder 13, and the tail end cylinder 14 are arranged in sequence from the feed inlet to the discharge port. A spiral fin 17 is provided on the inner wall of the cylinder body along the axial direction of the cylinder body to make the material move forward.

[0037] A plurality of residue screening holes 121 are provided in the residue screening area of the residue screening cylinder 12 for filtering out fine residues and bottle caps; a plurality of bottle screening holes 131 are provided in the bottle screening area of the bottle screening cylinder 13 for filtering out bottle bodies. The aperture of the bottle screening holes 131 is larger than that of the residue screening holes 121, and the length of the bottle screening cylinder 13 is greater than that of the residue screening cylinder 12. The residue screening holes 121 and the bottle screening holes 131 are arranged both in the circumferential and axial directions of the cylinder body.

[0038] A number of top-dispersing bodies 16 are sequentially arranged on the inner wall of the cylinder body along the axial direction of the cylinder body to disperse the material; the top-dispersing bodies 16 are cylinders perpendicular to the inner wall of the cylinder body, and the end of the cylinder is provided with a pointed part. When the bottle brick material just enters the area of the dispersing cylinder 11, with the rolling of the cylinder body, under the action of the top-dispersing bodies 16 and the beating of the material, it is beneficial to disperse the material.

[0039] A number of lifting plates 18 are provided on the inner walls of the dispersing cylinder 11, the residue screening cylinder 12, and the bottle screening cylinder 13. The lifting plates 18 are perpendicular to the inner wall of the cylinder, and the lifting plates 18 are inclined relative to the axis direction of the cylinder body. When the cylinder body rotates, the lifting plates 18 can lift the material in contact with them upward, and the material then falls from a high place, achieving the effect of beating the material blocks.

[0040] The driving mechanism part is a relatively mature existing mechanism. It uses a motor to drive the supporting roller to rotate, which cooperates with the wheel belt 15 to drive the cylinder to rotate.

[0041] The disintegrating, slag screening and bottle sorting integrated machine integrates the functions of bottle brick disintegration, slag screening and bottle screening on one cylinder. It has a compact structure, reduces the occupied space, reduces the number of equipment, and eliminates manual screening, which can improve the disintegration and screening efficiency.

[0042] The present invention is not limited to the above-mentioned best implementation manner. Any person can obtain other various forms of products under the inspiration of the present invention. However, no matter what changes are made in its shape or structure, as long as it has the same or similar technical solutions as this application, they all fall within the protection scope of the present invention.

Claims

1. A method for sorting and processing bottle bricks, characterized in that: It includes the following steps. The bottle bricks are conveyed to the disintegrating, screening, slag separating and sorting machine. The screened bottles enter the first conveyor and then the first bottle feeder. The first bottle feeder conveys the bottles to the material sorting machine in sequence to sort out the PET material bottles. The PET material bottles enter the label removing machine to remove the labels. The label-free bottles are sent to the washing machine via the second conveyor. The washed bottles are sent to the second bottle feeder via the third conveyor. The second bottle feeder conveys the bottles to the color sorter in sequence to screen out the bottles of the set color. The blue bottles and transparent bottles screened by the color sorter are processed separately. The blue bottles are sent to the first manual sorting and inspection conveyor platform via the fourth conveyor. After manual inspection, they are sent to the first shredder. The shredded bottle flakes are sent to the first bottle flake hot washing machine by the first screw feeder to wash the bottle flakes, and then are processed by the first rinsing machine. The processed bottle flakes enter the first drying and granulating system. The transparent bottles are sent to the second manual sorting and inspection conveyor platform via the fifth conveyor. After manual inspection, they are sent to the second shredder. The shredded bottle flakes are sent to the second bottle flake hot washing machine by the second screw feeder to wash the bottle flakes, and then are processed by the second rinsing machine. The processed bottle flakes enter the second drying and granulating system.

2. The bottle brick sorting and processing method according to claim 1, characterized in that: At the first manual sorting and inspection conveyor platform and the second manual sorting and inspection conveyor platform, the bottles that do not meet the color requirements are taken out manually.

3. The bottle brick sorting and processing method according to claim 1, characterized in that: Before the bottle bricks are processed, the bundling straps are removed and they are sent to the disintegrating, screening, slag separating and sorting machine through the bottle brick conveyor.

4. The bottle brick sorting and processing method according to claim 2, characterized in that: The bottle bricks enter the disintegrating, screening, slag separating and sorting machine. First, they are disintegrated. Fine slag and bottle caps are screened out in the slag screening area, and the bottles are screened out in the bottle screening area.

5. The bottle brick sorting and processing method according to claim 4, characterized in that: The disintegrating, screening, slag separating and sorting machine includes a cylinder body and a driving mechanism. The cylinder body is driven by the driving mechanism to rotate. One end of the cylinder body is the feed inlet and the other end is the discharge outlet. The cylinder body includes a disintegrating cylinder, a slag screening cylinder and a bottle screening cylinder. The disintegrating cylinder, the slag screening cylinder and the bottle screening cylinder are arranged in sequence from the feed inlet to the discharge outlet. Spiral blades are arranged on the inner wall of the cylinder body along the axial direction of the cylinder body to make the material move forward. A number of top-dispersing bodies are arranged on the inner wall of the cylinder body along the axial direction of the cylinder body to make the material disperse. A number of slag screening holes are arranged in the slag screening area of the slag screening cylinder to filter out fine slag and bottle caps. A number of bottle screening holes are arranged in the bottle screening area of the bottle screening cylinder to filter out the bottles.

6. The bottle brick sorting and processing method according to claim 5, characterized in that: The aperture of the bottle screening holes is larger than that of the slag screening holes, and the length of the bottle screening cylinder is greater than that of the slag screening cylinder.

7. The bottle brick sorting and processing method according to claim 5, characterized in that: A number of lifting plates are arranged on the inner walls of the disintegrating cylinder, the slag screening cylinder and the bottle screening cylinder. The lifting plates are perpendicular to the inner wall of the cylinder and are inclined relative to the axis direction of the cylinder body.

8. The bottle brick sorting and processing method according to claim 1, characterized in that: When the bottles are being washed in the washing machine, alkaline spray washing water at a certain temperature is added to wash away the sundries on the bottles and discharge them through the screening holes.

9. The bottle brick sorting and processing method according to claim 1, characterized in that: Alkali solution and steam with a temperature above 95 degrees are added to the first screw feeder and / or the first bottle flake hot washing machine.

10. The bottle brick sorting and processing method according to claim 1, characterized in that: Alkali solution and steam with a temperature above 95 degrees are added to the second screw feeder and / or the second bottle flake hot washing machine.

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