General waste sorting system

Abstract

The present invention relates to a general waste sorting system and is characterized by comprising: a screen unit including a grid mesh arranged at an angle; a main conveyor provided above the angled section of the grid mesh for feeding general waste into the screen unit; a drain arranged at an angle directly below the grid mesh; and a vibrator for applying vibration to the screen unit and the drain; a magnetic section comprising a first magnetic unit for collecting iron materials from general waste collected at the bottom of the angled section of the grid mesh and a second magnetic unit for collecting iron materials from general waste collected at the bottom of the angled section of the drain; and a wind power section comprising a first vertical pipe connected to the first magnetic unit, a second vertical pipe connected to the second magnetic unit, a first chamber provided at the bottom of the first vertical pipe, a second chamber provided at the bottom of the second vertical pipe, and a fan provided on the side wall of the first chamber and the second chamber.

Description

Technology Field

[0001] The present invention relates to a general waste sorting system, and more specifically, to a general waste sorting system that classifies waste to a predetermined particle size using a flat screen sorter, resolves the chronic problem of waste jamming in screen sorters, and is capable of separating and collecting iron and non-ferrous metals contained in the waste. Background Technology

[0003] In Korea, waste is administratively classified into household waste and industrial waste. Household waste is further classified into recyclable waste, bulky waste, food waste, etc., while industrial waste is further classified into construction waste, general industrial waste, designated waste, etc. (Hereinafter, industrial waste excluding household waste and designated waste is collectively referred to as "general waste").

[0004] Typically, the waste treatment process consists of four stages: discharge, collection and transportation, intermediate treatment (incineration / recycling), and final treatment (landfill). However, while existing landfills are often nearly at full capacity, securing new landfill sites is becoming increasingly difficult due to reasons such as resistance from local residents in the selected area.

[0005] Accordingly, various efforts are being made to increase the recycling rate during the intermediate processing stage.

[0006] Meanwhile, the waste recycling process is preceded by a sorting step of mixed waste by size or type, and various sorting machines are used for this purpose.

[0007] These types include screen separators that classify waste by particle size using mesh, wind separators that classify waste according to specific gravity using wind, optical separators that primarily classify synthetic resins by material (PET, PE, PP, PS, etc.) using visible light or infrared rays, and magnetic separators used for classifying ferrous and non-ferrous metals.

[0008] Among these, screen sorters are broadly classified into cylindrical screens (see Patent Document 1, Fig. 1) and flat screens (see Patent Document 2, Fig. 2), but both types have the disadvantage that waste frequently gets caught in the mesh, hindering the sorting process.

[0009] Furthermore, in the case of wind separators, the ability to classify iron and non-ferrous metals is poor, and there is a limitation in that the separation results become coarse due to interference from large-sized waste as the variation in waste particle size increases. Prior art literature

[0011] (Patent Document 0001) KR 10-2627995 B1 2024.01.17.(Patent Document 0002) KR 10-2808570 B1 2025.05.12. The problem to be solved

[0012] The problem to be solved by the present invention is to provide a general waste sorting system that primarily sorts general waste using a flat screen, resolves the chronic problem of waste jamming in screen sorters, and can preferentially sort iron and non-ferrous metals contained in general waste. means of solving the problem

[0014] A general waste sorting system of the present invention for solving the above problem comprises: a screen unit including a grid mesh arranged at an angle; a main conveyor provided above the angled section of the grid mesh for feeding general waste into the screen unit; a drain arranged at an angle directly below the grid mesh; and a screen section including a vibrator that applies vibration to the screen unit and the drain; and a magnetic section comprising a first magnetic unit for collecting iron materials from general waste collected at the bottom of the angled section of the grid mesh and a second magnetic unit for collecting iron materials from general waste collected at the bottom of the angled section of the drain. The device is characterized by comprising: a first vertical pipe connected to the first magnetic unit; a second vertical pipe connected to the second magnetic unit; a first chamber provided at the bottom of the first vertical pipe; a second chamber provided at the bottom of the second vertical pipe; and a fan provided on the side wall of the first chamber and the second chamber.

[0015] In addition, the general waste sorting system of the present invention comprises an upper screen and a lower screen having a grid mesh arranged in an overlapping structure, a separation means for overlapping or separating the upper screen and the lower screen, and a blower, wherein the upper screen and the lower screen are composed of a square picture frame and a plurality of wires arranged in parallel inside the frame, and the wires of each frame are arranged to be orthogonal to each other.

[0016] In addition, the general waste sorting system of the present invention is characterized in that the separation means comprises a plurality of rails fixed to the frame of an upper screen and a block that moves by a motor while provided on each rail and is fixed to the frame of a lower screen, wherein the fixation of the frame of the upper screen and the rail is achieved through a 1 rubber bushing and the fixation of the frame of the lower screen and the block is achieved through a 2 rubber bushing.

[0017] In addition, the general waste sorting system of the present invention comprises a case in which the first magnetic unit and the second magnetic unit are provided in a box shape and a partition is formed in the center of the bottom, and a rotating drum embedded in the case and having a plurality of electromagnet pieces arranged radially inside, wherein the rotation axis of the rotating drum is positioned directly above the partition.

[0018] In addition, the general waste sorting system of the present invention is characterized by having a first opening located close to the first vertical pipe and the second vertical pipe and a second opening located relatively far from the bottom of the first chamber and the second chamber, and a general waste discharge means disposed directly below the first opening and the second opening. Effects of the invention

[0020] According to the general waste sorting system of the present invention, the problem of waste jamming, which is a chronic problem of screen sorters, can be resolved through an upper screen and a lower screen that include wires arranged orthogonally to each other and are provided to overlap or be separated from each other, thereby increasing the efficiency of the sorting operation and the convenience of management.

[0021] In addition, according to the general waste sorting system of the present invention, high-quality sorting results can be obtained by introducing general waste with small particle size variation into each chamber through the screen section.

[0022] In addition, according to the general waste sorting system of the present invention, by placing a magnetic unit above the wind power unit, the problem of reduced ability to sort iron and non-ferrous metals, which is a disadvantage of wind separators, can be resolved. Brief explanation of the drawing

[0024] FIG. 1 is a perspective view illustrating a cylindrical screen separator introduced in Patent Document 1. FIG. 2 is a perspective view illustrating a flat screen sorter introduced in Patent Document 2. FIG. 3 is a configuration diagram illustrating the configuration and arrangement of a general waste sorting system according to the present invention. FIG. 4 is a perspective view (a) showing an exploded view of a screen unit of a general waste sorting system according to the present invention, and a front view (b) of the combined state to explain the separation process of the screen. FIG. 5 is a cross-sectional view illustrating the magnetic part of a general waste sorting system according to the present invention. Specific details for implementing the invention

[0025] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings.

[0027] Referring to FIGS. 3, 4, and 5, a general waste sorting system according to an embodiment of the present invention is a flat screen sorter comprising a screen section (10) arranged at an angle, a magnetic section (20) provided at the lower part of the angled section of the screen section (10), and a wind power section (30) arranged directly below the screen section (10) and connected to the magnetic section (20), and the screen section (10) is characterized by having a means to prevent jamming.

[0028] In addition, the present invention is characterized in that each general waste classified by particle size through the screen section (10) first passes through the magnetic section (20) to separate iron materials, and then non-ferrous metals and remaining waste (hereinafter referred to as 'residual waste') are classified through the wind section (30).

[0030] Hereinafter, the specific details of the present invention will be described focusing on the above components. First, the screen unit (10) includes a screen unit (11) comprising a grid mesh (M) arranged at an angle, a main conveyor (12) provided above the angled section of the grid mesh (M) for feeding general waste into the screen unit (11), a drain (13) arranged at an angle directly below the grid mesh (M), and a vibrator (not shown) for applying vibration to the screen unit (11) and the drain (13).

[0031] The above screen unit (11) is configured to classify general waste flowing in from a main conveyor (12) according to the mesh size of a grid (M), and consists of an upper screen (111) and a lower screen (112) arranged in an overlapping structure to form a grid (M), a separation means (113) for overlapping or separating the upper screen (111) and the lower screen (112), and a blower (not shown).

[0032] Each screen (111, 112) is composed of a square frame-shaped frame (f, f') and a plurality of wires (w, w') arranged in parallel inside the frame (f, f'), wherein the wires (w, w') of each frame (f, f') are arranged orthogonally to each other and form a grid (M) when overlapped.

[0033] That is, general waste is classified by particle size while in an overlapping state, but during the work stoppage time, it is separated through the separation means (113), and when vibration is applied by a vibrator in this state, the general waste caught on the wire (w, w') is shaken off. In addition, general waste remaining on the wire (w, w') even after vibration is removed through the blower.

[0034] Therefore, maintenance work required to remove jamming can be reduced, thereby increasing sorting efficiency and management convenience.

[0035] Meanwhile, the above separation means (113) includes a plurality of rails (113a) that are vertically arranged and whose upper portions are fixed to the frame (f) of the upper screen (111), and a block (113b) that is moved by a motor (not shown) while being provided on each rail (113a) and is fixed to the frame (f') of the lower screen (112).

[0036] In addition, the fixation of the frame (f) of the upper screen (111) and the rail (113a) is achieved through a 1 rubber bushing (114), and the fixation of the frame (f') of the lower screen (112) and the block (113b) is achieved through a 2 rubber bushing (115), thereby enabling the fixation relationship to be effectively maintained even with vibrations of the upper screen (111) and the lower screen (112).

[0037] In addition, in the present invention, general waste can be classified according to a plurality of particle sizes, and in this case, the screen unit (11) is arranged in a multi-layered structure, and correspondingly, the first magnetic unit (21) and the first chamber (33) described later are additionally provided.

[0038] The above drain (13) is a tray having a cross-sectional shape roughly in the shape of a 'U', which receives general waste that has passed through the grid mesh (M), and the general waste that has passed through the grid mesh (M) flows into the second magnetic unit (22) to be described later due to the inclined arrangement of the drain (13).

[0039] The above vibrator is configured to allow general waste remaining in the grid (M) and general waste received by the drain (13) after passing through the grid (M) to flow smoothly down the inclined section. Typically, a magnetic hammer that instantaneously strikes the grid (M) and the drain (13) using electromagnetic force, or an electric motor vibrator that applies vibration by rotating an eccentric mass, is recommended, but is not limited thereto.

[0040] Meanwhile, guide plates (11a) are additionally installed on both sides of the screen unit (11) to prevent general waste from escaping to the sides of the grid mesh (M).

[0042] The magnetic unit (20) consists of a first magnetic unit (21) that collects iron materials from general waste collected at the bottom of the inclined section of the grid mesh (M), and a second magnetic unit (22) that collects iron materials from general waste collected at the bottom of the inclined section of the drain (13).

[0043] Each magnetic unit (21, 22) has an inlet (24) formed at the top of the case (23) as shown in FIG. 5, and discharge ports (25, 25') formed on the left and right sides respectively with respect to the partition wall (23a) at the bottom, and a rotating drum (27) is provided with a plurality of electromagnet pieces (26) arranged radially inside, and the rotation axis (27a) of the rotating drum (27) is positioned directly above the partition wall (23a).

[0044] And the above electromagnet piece (26) is designed so that when it is located to the left of the partition wall (23a), power is supplied and it becomes magnetic, and when it is located to the right, power supply is cut off and it loses its magnetic force.

[0045] Accordingly, as the general waste discharged from the case (23) passes through the rotating drum (27), general waste excluding iron is discharged through the left discharge port (25), and iron is discharged through the right discharge port (25').

[0046] And an auxiliary conveyor (28) for transporting collected iron materials is placed directly below the right discharge port (25').

[0048] The wind power unit (30) is composed of a first vertical pipe (31) connected to the left discharge port (25) of the first magnetic unit (21), a second vertical pipe (32) connected to the left discharge port (25) of the second magnetic unit (22), a first chamber (33) provided at the bottom of the first vertical pipe (31), a second chamber (34) provided at the bottom of the second vertical pipe (32), and a fan (35) provided on the side wall of each chamber (33, 34).

[0049] Here, the 1st chamber (33) and the 2nd chamber (34) are arranged side by side in a planar manner, but for convenience, they are shown overlapping in FIG. 5.

[0050] And at the bottom of each chamber (33, 34), there is one opening (D) located close to the vertical tube (31, 32) and two openings (D') located relatively far away.

[0051] At this time, general waste with a high specific gravity is discharged through the first opening (D) and general waste with a relatively low specific gravity is discharged through the second opening (D') by the wind power of the fan (35), and a conveyor or transport cart is waiting directly below each opening (D, D') to transport the discharged general waste to the outside.

[0053] In this way, the problem of waste getting stuck in the screen can be resolved through the upper screen and the lower screen provided to overlap or be separated from each other.

[0054] In addition, general waste with small particle size variation is introduced into each chamber (33, 34) through the screen section (10), thereby obtaining high-quality sorting results.

[0055] In addition, by placing a magnetic part (20) on top of the wind part (30), the problem of reduced ability to classify iron and non-ferrous metals, which is a disadvantage of the wind separator, can be resolved.

[0056] In addition, general waste discharged from each opening (D, D') provides work convenience for sorting non-ferrous metals or synthetic resins from residual waste in subsequent operations.

[0057] In addition, in the present invention, a large amount of general waste can be processed even in a narrow area through a configuration in which a wind power unit (30) is placed directly below the screen unit (10).

[0059] Although preferred embodiments of the present invention have been described above, the scope of the present invention is not limited thereto and should be understood to extend to those within a scope substantially equivalent to the embodiments of the present invention. Various modifications can be made by those skilled in the art to which the present invention belongs, without departing from the technical spirit of the present invention. Explanation of the symbols

[0061] 10: Screen section 11: Screen Unit 111: Upper Screen 112: Lower screen 113: Separation means 114: 1 rubber bushing 115: 2 rubber bushing 12: Main conveyor 13: Drain 20: Magnetic field 21: 1st Magnetic Unit 22: 2nd Magnetic Unit 23: Case 24: Inlet 25: Discharge port 26: Electromagnet section 27: Rotary drum 28: Auxiliary conveyor 30: Wind power section 31: 1st vertical pipe 32: 2nd vertical pipe 33: Chamber 1 34: Chamber 2 35: Fan

Claims

Claim 1 Screen unit (11) comprising a grid mesh (M) arranged at an angle, a main conveyor (12) provided above the angled section of the grid mesh (M) for feeding general waste into the screen unit (11), a drain (13) arranged at an angle directly below the grid mesh (M), and a vibrator for applying vibration to the screen unit (11) and the drain (13); magnetic unit (20) comprising a first magnetic unit (21) for collecting iron materials from general waste collected at the bottom of the angled section of the grid mesh (M), and a second magnetic unit (22) for collecting iron materials from general waste collected at the bottom of the angled section of the drain (13). and a wind power unit (30) comprising a first vertical pipe (31) connected to the first magnetic unit (21), a second vertical pipe (32) connected to the second magnetic unit (22), a first chamber (33) provided at the bottom of the first vertical pipe (31), a second chamber (34) provided at the bottom of the second vertical pipe (32), and a fan (35) provided on the side wall of the first chamber (33) and the second chamber (34);The screen unit (11) is composed of an upper screen (111) and a lower screen (112) arranged in an overlapping structure and equipped with a grid mesh (M), a separation means (113) for overlapping or separating the upper screen (111) and the lower screen (112), and a blower for removing general waste remaining on the wires (w, w'). The upper screen (111) and the lower screen (112) are composed of a square picture frame-shaped frame (f, f') and a plurality of wires (w, w') arranged in parallel inside the frame (f, f'), wherein the wires (w, w') of each frame (f, f') are arranged to be mutually orthogonal. The separation means (113) consists of a plurality of rails (113a) fixed to the frame (f) of the upper screen (111) and moves by a motor while equipped on each rail (113a), and the lower screen (112) A general waste sorting system comprising a block (113b) fixed to a frame (f'), wherein the fixation of the frame (f) of the upper screen (111) and the rail (113a) is achieved via a 1 rubber bushing (114), and the fixation of the frame (f') of the lower screen (112) and the block (113b) is achieved via a 2 rubber bushing (115). Claim 2 delete Claim 3 delete Claim 4 A general waste sorting system according to claim 1, wherein the first magnetic unit (21) and the second magnetic unit (22) are provided in a box shape and a partition wall (23a) is formed in the center of the bottom of the case (23), and a rotating drum (27) is built into the case (23) and has a plurality of electromagnet pieces (26) arranged radially inside, wherein the rotation axis (27a) of the rotating drum (27) is positioned directly above the partition wall (23a). Claim 5 A general waste sorting system according to claim 1, characterized in that the bottoms of the 1 chamber (33) and 2 chamber (34) are provided with a 1 opening (D) located close to the 1 vertical pipe (31) and 2 vertical pipe (32) and a 2 opening (D') located relatively far away, and a general waste discharge means is disposed directly below the 1 opening (D) and 2 opening (D').

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