CN118045779A - Classified recovery system and method for metal materials - Google Patents

Abstract

The embodiment of the application provides a metal material classification recycling system and a metal material classification recycling method, wherein the system comprises the following components: the conveying unit is used for conveying the materials to be classified to a first chute arranged at the tail end of the conveying unit, and the first chute comprises at least one channel which is used for guiding the materials to be classified to freely fall along a set direction; the sensor array comprises sensors which are in one-to-one correspondence with the channels, the sensors are distributed on the same horizontal direction below the first chute, and the sensors are used for detecting whether the materials to be classified falling from the corresponding channels belong to the target material types or not; and the classification unit is used for blowing the materials to be classified into the corresponding material frames when the materials to be classified are detected to belong to the target material types. The technical scheme provided by the embodiment of the application can improve the sorting and recycling efficiency of the materials.

Description

Classified recovery system and method for metal materials

Technical Field

The application relates to the technical field of classified recovery of metal materials, in particular to a classified recovery system and method of metal materials.

Background

In the production process of actual products, waste materials are often generated, but a large amount of materials with recovery value usually exist in the waste materials, such as aluminum is the second metal of world usage rank, and next to steel, the annual global aluminum yield exceeds the sum of all other nonferrous metals, a large amount of waste aluminum materials can be generated in the processing and production process of aluminum alloy section bars, and if the waste materials are finely sorted and efficiently separated, the method is the most effective way for developing regenerated aluminum, and is energy-saving, emission-reducing, production cost-reducing and environmental pollution-reducing.

However, in the classifying and recycling process of the metal waste at present, at most two materials can be recycled in one classification, and if more than two materials are required to be recycled from the waste, the recycling is necessary, so that the classifying and recycling efficiency of the materials is reduced. Based on the above, how to improve the sorting and recycling efficiency of materials is a technical problem to be solved.

Disclosure of Invention

The embodiment of the application provides a metal material classifying and recycling system and a metal material classifying and recycling method, and the classifying and recycling efficiency of materials can be improved based on the technical scheme provided by the application.

Other features and advantages of the application will be apparent from the following detailed description, or may be learned by the practice of the application.

According to a first aspect of an embodiment of the present application, there is provided a metal material classification recovery system, the system comprising: the conveying unit is used for conveying the materials to be classified to a first chute arranged at the tail end of the conveying unit, and the first chute comprises at least one channel which is used for guiding the materials to be classified to freely fall along a set direction; the sensor array comprises sensors which are in one-to-one correspondence with the channels, the sensors are distributed on the same horizontal direction below the first chute, and the sensors are used for detecting whether the materials to be classified falling from the corresponding channels belong to the target material types or not; and the classification unit is used for blowing the materials to be classified into the corresponding material frames when the materials to be classified are detected to belong to the target material types.

In some embodiments of the present application, based on the foregoing solution, a U-shaped opening is formed at an end of each channel, and each sensor includes: the laser generator is used for emitting a laser beam towards the corresponding U-shaped opening so that the laser beam passes through the U-shaped opening and falls on the materials to be classified passing through the U-shaped opening, and the laser beam is used for exciting the materials to be classified passing through the U-shaped opening to generate plasma; and the detection array is used for determining whether the material to be classified belongs to the target material type or not based on the spectrum reflected by the plasma generated by the material to be classified passing through the U-shaped opening.

In some embodiments of the application, based on the foregoing, the sensor comprises a LIBS sensor; an included angle between the horizontal direction of the sensor array and the extending direction of the first chute is 85-90 degrees; the distance from the laser emitting port of the laser generator to the corresponding U-shaped port is 240-250mm.

In some embodiments of the application, based on the foregoing, the system further comprises a feeding unit comprising a blanking hopper, a vibratory feeder, and a second chute; the vibration feeder is used for carrying out dispersion treatment on the materials to be classified in the discharging hopper; the second chute is used for guiding the materials to be classified after the dispersion treatment to be sequentially and uniformly distributed and sent to the conveying unit.

In some embodiments of the present application, based on the foregoing, the classification unit includes an air compressor, a gas integrated shower, a plurality of air passages, an air filter, a solenoid valve, and a pressure gauge; the air inlets of the air passages are respectively connected with the air compressor, and the air outlets of the air passages are connected with the air inlets of the gas integrated spray heads; the air filter element is arranged on the air passage and is used for filtering the gas in the air passage; the electromagnetic valve is arranged on the air passage and is used for regulating and controlling the air supply flow of the air passage; the pressure gauge is arranged on the air passage and is used for collecting gas pressure data of the air passage; the gas integrated spray head is used for blowing the materials to be classified belonging to the target material types into the corresponding material frames.

In some embodiments of the present application, based on the foregoing, the gas-integrated shower head is a fan-shaped shower head, and the gas-integrated shower head is inclined downward at an angle of 45 ° to 47 ° with respect to a horizontal plane.

According to a second aspect of the embodiment of the present application, there is provided a method for classified recovery of metal materials, the method using the system in any one of the embodiments of the first aspect to perform classified recovery of aluminum scrap, the method comprising: preprocessing the original waste aluminum materials to obtain waste aluminum materials to be classified; conveying the waste aluminum materials to be classified to the conveying unit so that the waste aluminum materials to be classified freely fall along the set direction of each channel; when a target sensor in the sensor array detects falling waste aluminum materials to be classified, determining whether the waste aluminum materials to be classified belong to target aluminum alloy materials; and if the waste aluminum materials to be classified belong to the target aluminum alloy materials, sending a control instruction to the classification unit so that the classification unit blows the waste aluminum materials to be classified into the corresponding material frames.

In some embodiments of the present application, based on the foregoing solution, the preprocessing the raw scrap aluminum material to obtain the scrap aluminum material to be classified includes: crushing the original waste aluminum material; carrying out magnetic separation treatment on the crushed original waste aluminum materials to remove iron-containing materials in the original waste aluminum materials; carrying out eddy current separation on the original waste aluminum materials after the magnetic separation treatment to remove nonmetallic materials in the original waste aluminum materials; and carrying out reselection treatment on the original waste aluminum materials after eddy current separation to remove non-aluminum metal materials in the original waste aluminum materials so as to obtain the waste aluminum materials to be classified.

In some embodiments of the present application, based on the foregoing solution, the magnetic separation treatment is performed on the raw scrap aluminum material after the crushing treatment to remove the iron-containing material in the raw scrap aluminum material, including: carrying out primary magnetic separation treatment on the crushed original waste aluminum materials to remove pure iron materials in the original waste aluminum materials; and carrying out secondary magnetic separation treatment on the original waste aluminum materials after the primary magnetic separation treatment so as to remove the iron inclusion materials in the original waste aluminum materials.

In some embodiments of the present application, based on the foregoing solution, the classification unit includes a gas integrated shower head, and the classification unit blows the scrap aluminum material to be classified into a corresponding material frame, including: and after the classification unit receives the control instruction and reaches a first preset duration, controlling the gas integrated spray head to execute a jet action for a second preset duration, so that the waste aluminum materials to be classified are blown into corresponding material frames.

According to the technical scheme, the metal material classifying and recycling system comprises a conveying unit, wherein the conveying unit is used for conveying materials to be classified to a first chute arranged at the tail end of the conveying unit, the first chute comprises at least one channel, and the channel is used for guiding the materials to be classified to freely fall along a set direction;

The sensor array comprises sensors which are in one-to-one correspondence with the channels, the sensors are distributed on the same horizontal direction below the first chute, and the sensors are used for detecting whether the materials to be classified falling from the corresponding channels belong to the target material types or not; and the classification unit is used for blowing the materials to be classified into the corresponding material frames when the materials to be classified are detected to belong to the target material types.

Therefore, the material classifying and recycling system designed by the application can improve the productivity of classifying and recycling materials by arranging the corresponding sensors below each channel, thereby improving the efficiency of classifying and recycling the materials; the sensor array designed by the application comprises at least one sensor, and the number of the sensors can be adjusted according to the material types needing to be recovered, so that various material types needing to be recovered can be completed in one-time feeding, and the classifying and recovering efficiency of the materials can be improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. It is evident that the drawings in the following description are only some embodiments of the present application and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art. In the drawings:

FIG. 1 illustrates a schematic architecture of a metal material classification recovery system according to one embodiment of the application;

FIG. 2 shows a detailed schematic of a material sort recovery system, according to one embodiment of the present application;

FIG. 3 shows a detailed schematic view of a first chute according to one embodiment of the application;

FIG. 4 shows a detailed schematic of the U-shaped mouth in the A-direction according to one embodiment of the application;

FIG. 5 shows a detailed schematic of a LIBS sensor according to an embodiment of the application;

FIG. 6 shows a detailed schematic view of a gas integrated showerhead in the B-direction according to one embodiment of the application

Fig. 7 shows a flow diagram of a method for classified recovery of metal materials according to an embodiment of the present application.

The reference numerals are explained as follows:

100-a pretreatment unit, 200-a feeding unit,

201-A blanking hopper, 202-a vibrating feeder,

203-A second chute, which is arranged on the bottom of the first chute,

300-A conveying unit, 301-a belt conveyor,

302-First chute, 3021-channel,

3022-A U-shaped mouth with a generally U-shaped opening,

400-Sensor array, 401-sensor,

402-Laser emission ports, 403-laser generators,

404-A mirror, 405-a lens,

406-Plasma, 407-material to be sorted,

408-Condenser lenses, 409-spectrometers,

410-A detection array,

500-A classification unit, 501-an air compressor,

502-An air filter element, 503-a pressure gauge,

504-An air passage, 505-a solenoid valve,

506-Gas integrated showerhead.

Detailed Description

Exemplary embodiments that embody features and advantages of the present application will be described in detail in the following description. It will be understood that the application is capable of various modifications in various embodiments, all without departing from the scope of the application, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the application.

In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the system or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.

According to a first aspect of an embodiment of the present application, a metal material classification recovery system is provided.

Referring to fig. 1, a schematic diagram of the architecture of a metal material classification recovery system according to one embodiment of the application is shown.

In some embodiments, the metal material classification recycling system of the present application includes a conveying unit 300, a sensor array 400, and a classification unit 500.

In order to enable those skilled in the art to better understand the technical solution of the present application, the details of the metal material classification recycling system of the present application will be described below with reference to fig. 2.

In the present application, the conveying unit 300 is configured to convey the material 407 to be classified to a first chute 302 disposed at an end of the conveying unit 300, and the first chute 302 includes at least one channel 3021, where the channel 3021 is configured to guide the material 407 to be classified to freely fall along a set direction.

In some embodiments, the conveying unit 300 further comprises a belt conveyor 301, the belt conveyor 301 being configured to convey the material 407 to be sorted to the first chute 302 at a speed, for example, the speed may be 0.1m/s.

It should be noted that, the number of the channels 3021 provided in the first chute 302 may be set according to the capacity of actual classification and recovery, if the classification efficiency of the materials 407 to be classified in a unit time needs to be improved, the number of the channels 3021 included in the first chute 302 may be increased appropriately, so that the amount of the materials 407 to be classified that freely fall from the first chute 302 in a unit time is increased, and further the classification and recovery efficiency of the materials 407 to be classified is improved.

By way of example, the number of channels 3021 in the first chute 302 may be set to 3, and as shown in fig. 3, the material 407 to be classified is free to fall from the three channels 3021 in sequence.

The first chute 302 is configured to be inclined downward with respect to the horizontal plane, specifically, the inclination angle may be 15 °, and of course, other inclination angles may be also configured, which is not limited herein.

In some embodiments, a U-shaped port 3022 may be provided at each end of each channel 3021 included in the first chute 302.

In this embodiment, the U-shaped port 3022 may be provided at an end position of the passage 3021, which refers to a position where the material 407 to be classified leaves the passage 3021.

For example, in fig. 4, a U-shaped opening 3022 is shown at the end of a channel 3021, where the diameter of the U-shaped opening may be 10mm, so as to facilitate accurate passing through the laser beam when the material 407 to be classified falls freely, thereby improving the material identification rate.

In fig. 4, the width of the beginning of the corresponding channel 3021 is 260mm, the width of the end is 190mm, the length of the channel 3021 is 480mm, and the thickness of the channel 3021 is 25mm.

In some embodiments of the present application, in order to enable the material 407 to be classified, which is transferred by the transfer unit 300, to be transferred by a uniform queue, the feeding unit 200 may be further provided in the metal material classification recycling system.

In some embodiments, the feeder unit 200 includes a blanking hopper 201, a vibratory feeder 202, and a second chute 203; the vibration feeder 202 is used for carrying out dispersion treatment on the materials 407 to be classified in the discharging hopper 201; the second chute 203 is used for guiding the materials 407 to be classified after being dispersed to be sequentially and uniformly distributed and sent to the conveying unit 300.

As can be seen from fig. 2, the materials 407 to be classified may be placed into the discharging hopper 201, so that the materials 407 to be classified are uniformly dispersed by vibration after entering the vibratory feeder 202 from the outlet of the discharging hopper 201, and then the materials 407 to be classified are sequentially distributed and fed into the conveying unit 300 through the second chute 203.

It should be noted that the second chute 203 also includes the channels 3021, and the number of channels 3021 included in the second chute 203 should be the same as the number of channels 3021 included in the first chute 302.

In some embodiments of the present application, a pretreatment unit 100 may be further provided, where the pretreatment unit 100 is configured to pretreat the raw material to obtain the material 407 to be classified. It will be appreciated that after the material 407 to be classified is processed by the pretreatment unit 100, the material 407 to be classified is fed into the discharging hopper 201, thereby achieving further classification recycling treatment.

It should be noted that, the pretreatment unit 100 may be specifically configured according to the materials that are actually required to be recovered. For example, if the waste aluminum material needs to be recovered, a crushing unit, a magnetic separation unit, an eddy current separation unit, and a reselection unit may be sequentially disposed in the pretreatment unit 100, where the crushing unit is used to crush the original waste aluminum material, the magnetic separation unit is used to remove iron-containing material in the original waste aluminum material, and the eddy current separation is used to remove nonmetallic material in the original waste aluminum material; the reselection unit is used for removing non-aluminum metal materials in the original waste aluminum materials.

With continued reference to fig. 1, in the present application, a metal material classification recycling system is provided, where the metal material classification recycling system includes a sensor array 400, where the sensor array 400 includes sensors 401 corresponding to the channels 3021 one by one, and each sensor 401 is distributed in the same horizontal direction below the first chute 302, and the sensor 401 is configured to detect whether the material 407 to be classified falling from the corresponding channel 3021 belongs to the target material category.

In some embodiments, the types of materials detected by each of the sensors 401 are different from each other.

In the present embodiment, the number of sensors 401 included in the sensor array 400 is the same as the number of channels 3021 included in the first chute 302, and each sensor 401 can detect one material type, and thus how many sensors 401 are arranged in the sensor array 400, i.e. how many kinds of materials can be detected.

Therefore, the sensor array 400 includes different types of target materials that can be detected by the respective sensors 401.

Illustratively, assuming that a material type a, a material type B, and a material type C are to be sorted from the material to be sorted 407, the first chute 302 includes a channel 1, a channel 2, and a channel 3, the sensor array 400 includes a sensor 1, a sensor 2, and a sensor 3, wherein the sensor 1 is used to detect the material to be sorted that falls in the channel 1, the sensor 2 is used to detect the material to be sorted that falls in the channel 2, and the sensor 3 is used to detect the material to be sorted that falls in the channel 3.

Further, if the sensor 1 is configured to detect whether the material to be classified belongs to the a material category, the sensor 2 is configured to detect whether the material to be classified belongs to the B material category, and the sensor 3 is configured to detect whether the material to be classified belongs to the C material category.

It can be understood that the target material type corresponding to the sensor 1 is the a material type, the target material type corresponding to the sensor 2 is the B material type, and the target material type corresponding to the sensor 3 is the C material type.

In other embodiments, each sensor 401 detects the same type of material.

In this embodiment, each sensor 401 is provided with the same target material type, so that different sensors 401 can sort the same material at the same time, and thus the processing capacity of the device can be improved.

In some embodiments, each sensor 401 includes a laser generator 403 and a detection array 410. The laser generators 403 are configured to emit a laser beam toward the corresponding U-shaped opening 3022, so that the laser beam passes through the U-shaped opening 3022 and falls onto the material 407 to be sorted passing through the U-shaped opening 3022, and the laser beam is configured to excite the material 407 to be sorted passing through the U-shaped opening 3022 to generate plasma 406; the detection array 410 is configured to determine whether the material 407 to be classified belongs to a target material type based on a spectrum reflected by the plasma 406 generated by the material 407 to be classified passing through the U-shaped opening 3022.

In some embodiments, the sensor array 400 is disposed directly below the belt conveyor 301, and an angle between a horizontal direction in which the sensor array 400 is located and an extending direction of the first chute 302 is 85 ° -90 °; the distance from the laser emitting port 402 of the laser generator 403 to the corresponding U-shaped port 3022 is 240-250mm.

In this embodiment, the arrangement positions of the sensor array 400 are defined, so that the accuracy of detecting the material types of the materials 407 to be classified by the sensor array 400 can be improved.

As shown in fig. 2, the angle between the horizontal direction in which the sensor array 400 illustrated in fig. 2 is located and the extending direction of the first chute 302 is 90 °, and the distance from the laser emitting port 402 of the laser generator 403 to the corresponding U-shaped port 3022 is 245mm.

In some embodiments of the application, the sensor 401 comprises a LIBS sensor 401.

The specific structure of the LIBS sensor 401 may be as shown in fig. 5.

Referring to fig. 5, a detailed schematic diagram of a LIBS sensor according to one embodiment of the application is shown.

The LIBS sensor 401 includes a laser generator 403, a mirror 404, a lens 405, a condenser lens 408, a spectrometer 409, and a detection array 410.

The specific detection process is that the laser generator 403 of the LIBS sensor 401 emits a laser beam with high energy to the direction of the corresponding U-shaped opening 3022, so that the laser beam can pass through the U-shaped opening 3022 through the reflector 404 and the lens 405 and fall on the surface of the material 407 to be classified passing through the U-shaped opening 3022, atoms on the surface of the material 407 to be classified are excited into plasma 406 under the high temperature burning of laser, the plasma 406 passes through the condensing lens 408, the spectrometer 409 and the detection array 410, and the spectrum reflected by the plasma 406 is analyzed to determine whether the material 407 to be classified belongs to the target material category.

In summary, by providing the U-shaped opening 3022 in the channel 3021, the laser generator 403 of the sensor 401 can emit the laser beam toward the corresponding U-shaped opening 3022 in real time during the operation of the system, so as to detect the material 407 to be classified falling in the corresponding channel 3021 in real time, improve the identification rate of the material, and further accurately determine whether the material belongs to the target material.

With continued reference to fig. 1, the classifying unit 500 is configured to blow the material to be classified 407 into a corresponding material frame when the material to be classified 407 is detected to belong to a target material category.

For example, in the above example, if the sensor 1 detects that the material to be classified falling from the passage 1 belongs to the a material type, the material to be classified is blown into the material frame 1 containing the a material type; if the sensor 2 detects that the material to be classified falling from the channel 2 belongs to the material type B, the material to be classified is blown into the material frame 2 containing the material type B, and if the sensor 3 detects that the material to be classified falling from the channel 3 belongs to the material type C, the material to be classified is blown into the material frame 3 containing the material type C.

In some embodiments, the sorting unit 500 includes the sorting unit 500 including an air compressor 501, a gas integrated showerhead 506, a plurality of air passages 504, an air cartridge 502, a solenoid valve 505, and a pressure gauge 503; .

The air inlets of the air passages 504 are respectively connected to the air compressor 501, and the air outlets of the air passages 504 are connected to the air inlets of the gas integrated spray heads 506; the air filter element 502 is disposed on the air channel 504, and the air filter element 502 is used for filtering the air in the air channel 504; the electromagnetic valve 505 is arranged on the air passage 504, and the electromagnetic valve 505 is used for regulating and controlling the air supply flow of the air passage 504; the pressure gauge 503 is arranged on the air channel 504, and the pressure gauge 503 is used for collecting gas pressure data of the air channel 504; the gas integrated spray head 506 is used for blowing the materials 407 to be classified belonging to the target material category into the corresponding material frame.

It should be noted that, in this embodiment, the number of the air filter elements 502 to be installed is not limited, for example, one air filter element 502 may be disposed at the position of the air inlet of each air channel 504, or only one air filter element 502 may be disposed, so as to filter the air of each air channel 504 and prevent blocking the gas integrated nozzle.

In this embodiment, the installation position and the number of the pressure gauges 503 are not limited.

It should be further noted that in this embodiment, one electromagnetic valve 505 may be provided on each air passage 504.

In this embodiment, when the target sensor in the sensor array 400 detects that the material 407 to be classified belongs to the target material category, the target sensor sends an electrical signal of 24V to each electromagnetic valve 505, and each electromagnetic valve 505 can perform an action, i.e. is opened, so that each air passage 504 starts to deliver air to the air integration nozzle 506, so that the air integration nozzle 506 can perform a jet action to blow the material 407 to be classified into the corresponding material frame.

The pressure of the air compressor 501 is adjustable, and can be adjusted between 0.7 Mpa and1 Mpa.

It can be understood that, because the materials of different material types in the materials to be classified 407 have different weights and different positions of the placed material frames, the classification unit 500 can determine the gas pressure matched with the materials to be classified 407 according to the material types of the materials to be classified 407 and the positions of the corresponding material frames to be blown, so that the gas integrated nozzle 506 can precisely blow the materials to be classified 407 into the corresponding material frames.

In the present application, in order to further enhance the blowing accuracy of the gas integration showerhead 506, the structure and the arrangement position of the gas integration showerhead 506 may be defined.

In some embodiments, the nozzles of the gas integrated nozzle 506 are fan-shaped nozzles, and the gas integrated nozzle 506 is inclined downward at an angle of 45 ° -47 ° with respect to the horizontal.

In some embodiments, the gas integrated showerhead 506 is 3-5mm from the U-shaped port 3022.

Illustratively, as shown in FIG. 6, the gas integration showerhead 506 includes 16 showerheads, each of which has a fan shape, i.e., the gas integration showerhead 506 includes 16 fan-shaped showerheads, and the arc of the fan shape of the fan-shaped showerhead is 15 ° -20 °.

Wherein 20mm is shown in fig. 6 as the spacing between the two spray heads; 180mm is the length of the gas integrated showerhead 506; 35mm is the width of the gas integrated showerhead 506.

It will be appreciated that the nozzle of the gas-integrated nozzle 506 is configured in a fan shape, and the blowing area of the fan-shaped nozzle is larger than that of the nozzle in a pinhole shape, so that the blowing accuracy of the gas-integrated nozzle 506 can be improved.

As can be appreciated from the above description of the metal material classification and recovery system, in the present application, by providing at least one sensor 401 in the sensor array 400, materials of various material types can be separated in one feeding process, and by providing at least one channel 3021 in the first chute 302, the productivity of classification and recovery of materials can be improved, and thus the classification and recovery efficiency can be improved; by detecting the material 407 to be classified using the LIBS sensor 401, classification accuracy can be improved.

According to a second aspect of the embodiment of the application, a metal material classification recycling method is provided.

The method adopts the system of any embodiment of the first aspect to carry out waste aluminum classification recovery.

The method for classifying and recovering the metal materials according to the present application will be described in detail with reference to fig. 7.

Referring to fig. 7, a flow chart of a metal material classification recycling method according to an embodiment of the present application is shown, and specifically includes the following steps S110 to S140:

s110, preprocessing the original waste aluminum materials to obtain waste aluminum materials to be classified.

In some embodiments, step S110 may be performed as follows steps S111 to S114:

s111, crushing the original waste aluminum materials.

In this embodiment, a crusher may be used to crush the original aluminum scrap material such that the particle size of the crushed aluminum scrap material is 150-200mm.

S112, carrying out magnetic separation treatment on the crushed original waste aluminum materials so as to remove iron-containing materials in the original waste aluminum materials.

In the present embodiment, it is possible to perform the following steps S1121 to S1122:

s1121, carrying out primary magnetic separation treatment on the original waste aluminum materials after the crushing treatment so as to remove pure iron materials in the original waste aluminum materials.

In this embodiment, the crushed raw scrap aluminum material may be subjected to one-stage magnetic iron removal (with a magnetic field of 2000 GS) by a belt iron remover, so as to remove pure iron material from the crushed raw scrap aluminum material.

S1122, carrying out secondary magnetic separation treatment on the original aluminum scrap material after the primary magnetic separation treatment so as to remove the iron inclusion material in the original aluminum scrap material.

In the embodiment, the original aluminum scrap material after primary magnetic separation treatment can be subjected to two-stage strong magnetic removal of entrained iron (the magnetic field is 4000 GS), so that the iron inclusion material in the original aluminum scrap material is removed.

In some embodiments, the iron-clamped material obtained after the secondary magnetic separation treatment can be returned to the crusher again to continue crushing treatment of the iron-clamped material so as to remove iron.

S113, carrying out eddy current separation on the original waste aluminum materials after the magnetic separation treatment to remove nonmetallic materials in the original waste aluminum materials.

In this embodiment, the resulting raw scrap aluminum material, which is free of iron, may be passed through an eddy current classifier to remove nonmetallic impurities contained therein.

S114, carrying out reselection treatment on the original waste aluminum materials after eddy current separation to remove non-aluminum metal materials in the original waste aluminum materials so as to obtain the waste aluminum materials to be classified.

In the embodiment, non-aluminum metal materials (such as nonferrous metals including magnesium, copper, zinc and the like) with larger density difference with aluminum alloy in the original waste aluminum materials can be removed, so that the obtained waste aluminum materials to be classified are purer.

With continued reference to fig. 7, S120, the scrap aluminum materials to be classified are conveyed to the conveying unit so that the scrap aluminum materials to be classified freely fall along the set direction of each channel.

In some embodiments, the aluminium scrap material to be sorted may be conveyed to the conveying unit by the feeding unit in the first aspect described above.

With continued reference to fig. 7, when the target sensor in the sensor array detects falling scrap aluminum material to be classified, it is determined whether the scrap aluminum material to be classified belongs to a target aluminum alloy material, S130.

It will be appreciated that the target sensor is configured to detect a target aluminum alloy material and that the target sensor belongs to each of the sensors comprised by the sensor array.

In this embodiment, the individual sensors in the sensor array may be pre-configured, each configured to detect an aluminum alloy. Namely, the types of the target aluminum alloy materials corresponding to each sensor are different, so that various aluminum alloys can be classified in one-time material selection.

In this embodiment, each sensor in the sensor array may be set in advance, and each sensor is configured to detect the same aluminum alloy, that is, the types of the target aluminum alloy materials corresponding to each sensor are the same, so that the processing capability of the device can be improved.

The setting basis for each sensor can be set according to the following table 3.

Table 1 is the original data of the conventional brands of aluminum alloy analyzed and detected by the detection array of the LIBS sensor, wherein the data of various aluminum alloy brands of Al are processed to be 100, the data of other elements are standardized according to the original data of Al, table 2 is the maximum wavelength of different characteristic elements, as can be seen from table 1, the different brands of aluminum alloy are distinguished due to the difference of the signal intensity of the aluminum alloy components and the control elements thereof, as can be seen from table 1, the brands of 2a12, 3104, 4005 and 7075 series of aluminum alloy can be distinguished according to the signal intensity of the impurity control elements thereof, for example, the brands of 2a12 aluminum alloy can be distinguished according to copper elements; the 1 series aluminum alloy can be distinguished according to the signal intensity of the copper element and the silicon element; the 5083 grade aluminum alloy can be distinguished according to iron and magnesium elements; 6061. the 6063 grade aluminum alloy can be distinguished according to three elements of copper, silicon and magnesium. The specific sorting method is shown in Table 3.

TABLE 1

TABLE 2

Aluminium alloy brand

Zn

Zn2

Cu

Mn

Mn2

Fe

Fe2

Si

Si2

Mg

Mg2

Cr

Ca

1200

＜20

＜30

2A12

＞300

4005

＞250

5083

＞180

＞250

6061

＞40

＜250

＜250

6063

＜40

＜250

＞180

＜250

7075

＞200

TABLE 3 Table 3

With continued reference to fig. 7, S140, if it is determined that the scrap aluminum material to be classified belongs to the target aluminum alloy material, a control instruction is sent to the classification unit, so that the classification unit blows the scrap aluminum material to be classified into a corresponding material frame.

In this embodiment, the sorting unit comprises a gas-integrated showerhead. After receiving the control instruction, the classification unit may perform the following step S141 to blow the waste aluminum materials to be classified into corresponding material frames.

And S141, after the classification unit receives the control instruction and reaches a first preset duration, controlling the gas integrated spray head to execute a jet action for a second preset duration, so that the waste aluminum materials to be classified are blown into corresponding material frames.

In this embodiment, after the classifying unit receives the control instruction for a first preset period, the classifying unit controls and opens the solenoid valves on the air passages, so that the air compressor can deliver the air to the air integration nozzle, and the air integration nozzle can perform the air injection.

In this embodiment, the first preset time period may be set to 5ms.

In this embodiment, the second preset time period may be set to 15ms.

It can be understood that, because the lower part of the first chute that the gas integrated shower nozzle set up, after confirming that the waste aluminum material that waits to classify belongs to the target aluminum alloy material, the classification sending unit still needs certain time after receiving control command, wait to classify waste aluminum material apart from reaching the jet position that gas integrated shower nozzle corresponds, therefore the classification unit just controls gas integrated shower nozzle and carries out the jet action after receiving control command and reaching first default duration, can make waiting to classify waste aluminum material by accurate blowing to the material frame that corresponds.

In some embodiments of the present application, a metal material classification recycling system is designed, including a conveying unit, configured to convey a material to be classified to a first chute disposed at an end of the conveying unit, where the first chute includes at least one channel, and the channel is configured to guide the material to be classified to freely fall along a set direction; the sensor array comprises sensors which are in one-to-one correspondence with the channels, the sensors are distributed on the same horizontal direction below the first chute, and the sensors are used for detecting whether the materials to be classified falling from the corresponding channels belong to the target material types or not; and the classification unit is used for blowing the materials to be classified into the corresponding material frames when the materials to be classified are detected to belong to the target material types.

Based on the technical scheme of the application, at least the following technical effects can be realized:

According to the material classifying and recycling system, the corresponding sensors are arranged below the channels, so that the productivity of classifying and recycling materials can be improved, and the classifying and recycling efficiency of the materials is improved; the sensor array designed by the application comprises at least one sensor, and the number of the sensors can be adjusted according to the material types needing to be recovered, so that various material types needing to be recovered can be completed in one-time feeding, and the classifying and recovering efficiency of the materials can be improved.

At present, most enterprises only obtain a mixed flow through magnetic separation and eddy current separation, and directly carry out loop smelting, and the method belongs to degradation recovery. The application is based on LIBS analysis and detection technology, and the LIBS analyzer is modified and upgraded into sorting equipment, namely, the LIBS analyzer has analysis and detection functions and sorting functions, so that the recovery rate of waste metal can be improved, and the waste metal can be sorted and recovered, and particularly in the aluminum alloy resource recovery industry, the grade-keeping recovery of aluminum alloy according to different grades can be realized, and the domestic advanced level is reached.

The above description is only an example of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (10)

1. A metal material classification recovery system, the system comprising:

the conveying unit is used for conveying the materials to be classified to a first chute arranged at the tail end of the conveying unit, and the first chute comprises at least one channel which is used for guiding the materials to be classified to freely fall along a set direction;

The sensor array comprises sensors which are in one-to-one correspondence with the channels, the sensors are distributed on the same horizontal direction below the first chute, and the sensors are used for detecting whether the materials to be classified falling from the corresponding channels belong to the target material types or not;

and the classification unit is used for blowing the materials to be classified into the corresponding material frames when the materials to be classified are detected to belong to the target material types.

2. The system of claim 1, wherein each of said channels has a U-shaped opening at an end thereof, each of said sensors comprising:

The laser generator is used for emitting a laser beam towards the corresponding U-shaped opening so that the laser beam passes through the U-shaped opening and falls on the materials to be classified passing through the U-shaped opening, and the laser beam is used for exciting the materials to be classified passing through the U-shaped opening to generate plasma;

And the detection array is used for determining whether the material to be classified belongs to the target material type or not based on the spectrum reflected by the plasma generated by the material to be classified passing through the U-shaped opening.

3. The system of claim 2, wherein the sensor comprises a LIBS sensor; an included angle between the horizontal direction of the sensor array and the extending direction of the first chute is 85-90 degrees; the distance from the laser emitting port of the laser generator to the corresponding U-shaped port is 240-250mm.

4. The system of claim 1, further comprising a feeder unit comprising a blanking hopper, a vibratory feeder, and a second chute;

the vibration feeder is used for carrying out dispersion treatment on the materials to be classified in the discharging hopper;

the second chute is used for guiding the materials to be classified after the dispersion treatment to be sequentially and uniformly distributed and sent to the conveying unit.

5. The system of claim 1, wherein the classification unit comprises an air compressor, a gas-integrated shower, a plurality of air passages, an air filter, a solenoid valve, and a pressure gauge;

The air inlets of the air passages are respectively connected with the air compressor, and the air outlets of the air passages are connected with the air inlets of the gas integrated spray heads;

The air filter element is arranged on the air passage and is used for filtering the gas in the air passage;

the electromagnetic valve is arranged on the air passage and is used for regulating and controlling the air supply flow of the air passage;

The pressure gauge is arranged on the air passage and is used for collecting gas pressure data of the air passage;

The gas integrated spray head is used for blowing the materials to be classified belonging to the target material types into the corresponding material frames.

6. The system of claim 5, wherein the gas-integrated burner tip is a fan-shaped burner tip, and wherein the gas-integrated burner tip is inclined downwardly at an angle of 45 ° to 47 ° relative to the horizontal.

7. A method for classified recovery of metal materials, characterized in that the method employs the system according to any one of claims 1 to 6 for classified recovery of scrap aluminum, the method comprising:

preprocessing the original waste aluminum materials to obtain waste aluminum materials to be classified;

conveying the waste aluminum materials to be classified to the conveying unit so that the waste aluminum materials to be classified freely fall along the set direction of each channel;

When a target sensor in the sensor array detects falling waste aluminum materials to be classified, determining whether the waste aluminum materials to be classified belong to target aluminum alloy materials;

and if the waste aluminum materials to be classified belong to the target aluminum alloy materials, sending a control instruction to the classification unit so that the classification unit blows the waste aluminum materials to be classified into the corresponding material frames.

8. The method of claim 7, wherein the pre-treating the raw scrap aluminum material to obtain scrap aluminum material to be classified comprises:

crushing the original waste aluminum material;

Carrying out magnetic separation treatment on the crushed original waste aluminum materials to remove iron-containing materials in the original waste aluminum materials;

Carrying out eddy current separation on the original waste aluminum materials after the magnetic separation treatment to remove nonmetallic materials in the original waste aluminum materials;

And carrying out reselection treatment on the original waste aluminum materials after eddy current separation to remove non-aluminum metal materials in the original waste aluminum materials so as to obtain the waste aluminum materials to be classified.

9. The method of claim 8, wherein the magnetic separation of the raw scrap aluminum material after the crushing process to remove iron-containing material from the raw scrap aluminum material comprises:

carrying out primary magnetic separation treatment on the crushed original waste aluminum materials to remove pure iron materials in the original waste aluminum materials;

and carrying out secondary magnetic separation treatment on the original waste aluminum materials after the primary magnetic separation treatment so as to remove the iron inclusion materials in the original waste aluminum materials.

10. The method of claim 7, wherein the sorting unit comprises a gas-integrated shower, the sorting unit blowing the scrap aluminum material to be sorted into a corresponding material frame, comprising:

and after the classification unit receives the control instruction and reaches a first preset duration, controlling the gas integrated spray head to execute a jet action for a second preset duration, so that the waste aluminum materials to be classified are blown into corresponding material frames.