A method and system for fully automatic recycling of hazardous waste

Abstract

The present application discloses a method and system for fully automatic recycling of hazardous waste. The system for fully automatic recycling of hazardous waste includes a control room, a mixing silo, a strong magnetic conveyor belt, a hazardous waste metal treatment system, and a hazardous waste plastic treatment system. The mixing silo is connected to the hazardous waste metal treatment system and the hazardous waste plastic treatment system respectively through the strong magnetic conveyor belt. The control room includes a control terminal and a display screen. The control terminal is electrically connected to the display screen, the mixing silo, the strong magnetic conveyor belt, the hazardous waste metal treatment system, and the hazardous waste plastic treatment system respectively. The control terminal is used to control the operation of the mixing silo, the strong magnetic conveyor belt, the hazardous waste metal treatment system, and the hazardous waste plastic treatment system. The display screen is used to display the control interface of the control terminal and the operating data of the mixing silo, the strong magnetic conveyor belt, the hazardous waste metal treatment system, and the hazardous waste plastic treatment system respectively. The mixed hazardous waste can be cleaned after passing through the hazardous waste treatment system, and the raw materials can be reused without pollution.

Description

Technical Field

[0001] The present application relates to the technical field of hazardous waste treatment, and in particular to a method and system for fully automatic recycling of hazardous waste. Background Art

[0002] With the development of society, the number of cars is increasing, so the corresponding car repairs and scrapping are also increasing. During the dismantling or repair process of cars, various automotive oils leak out, or hazardous waste contaminated with the oil is discarded at will.

[0003] The state stipulates that waste engine oil, brake oil, automatic transmission oil, gear oil and other waste lubricants generated during vehicle maintenance and dismantling are all hazardous wastes. It is prohibited to abandon, dump or landfill hazardous wastes without authorization. If more than 3 tons of hazardous wastes are illegally discharged, dumped or disposed of, criminal liability will be pursued in accordance with the law because it will pollute the environment.

[0004] The existing treatment of hazardous waste contaminated with hazardous materials is a simple method of multiple washings using water and detergents, which is not thorough and poses a high risk of environmental pollution. Summary of the invention

[0005] The purpose of the present application is to provide a method and system for the fully automatic recycling of hazardous wastes, so that the hazardous wastes contaminated with hazardous wastes can be cleaned up and recycled.

[0006] The present application discloses a method for fully automatic recycling of hazardous waste, wherein the hazardous waste includes hazardous waste metal and hazardous waste plastic contaminated with hazardous waste, respectively referred to as hazardous waste metal and hazardous waste plastic, comprising the steps of:

[0007] Pour the mixed hazardous waste of hazardous metals and hazardous plastics contaminated with hazardous waste into the mixing silo;

[0008] The mixed hazardous waste is initially separated by a strong magnetic conveyor belt, and the hazardous waste plastics are transported to a plastic shredder. The hazardous waste metals screened by the strong magnetic filter are transported to a conveyor belt and transported to a metal silo.

[0009] The treatment steps for separated hazardous waste metals include:

[0010] The hazardous waste metal is transported from the metal silo to the metal shredder through a conveyor belt to be shredded into hazardous waste metal pieces. The shredded hazardous waste metal pieces fall directly onto the vibrating screen in the metal shredder, and the waste liquid on the surface of the hazardous waste metal pieces is removed by the vibration screen, and the waste liquid is discharged to the sewage treatment device;

[0011] The hazardous waste metal pieces that have been shredded and separated into solid and liquid are transported from the metal shredder to the metal friction cleaning machine through a conveyor belt for simultaneous cleaning by friction and high-pressure water flow;

[0012] After friction and high-pressure cleaning, the hazardous waste metal pieces and the impurities washed away are transported from the metal friction cleaning machine to the magnetic separator via a conveyor belt to separate the cleaner hazardous waste metal pieces from other washed impurities;

[0013] The cleaned hazardous waste metal pieces are sent to a spiral cleaning machine through a conveyor belt for cleaning. The cleaned hazardous waste metal pieces are dried in an air dryer and then transported to the corresponding silo for metal storage through a conveyor belt for bagging and packaging.

[0014] The separated impurities are transported to the extruder through a conveyor belt, and the liquid in the impurities is pressed out and discharged to the sewage treatment device. The compacted impurities are transported to the corresponding silo for impurities through a conveyor belt and then bagged and packaged;

[0015] The treatment steps for separated hazardous waste plastics include:

[0016] The strong magnetic conveyor belt directly guides the separated hazardous waste plastics into the plastic shredder for shredding;

[0017] The shredded hazardous waste plastics are transported to the plastic silo via a conveyor belt;

[0018] The hazardous waste plastics and residual hazardous waste metals in the plastic silo are transported to the strong magnetic conveyor via a screw conveyor to separate the residual hazardous waste metals, and the separated hazardous waste plastics are transported to the slicer for slicing and cleaning with detergents. The separated hazardous waste metals are manually collected and transported to the hazardous waste metal processing line;

[0019] The hazardous waste plastic pieces after being sliced ​​and cleaned with a cleaning agent are lifted by a hoist to a spin dryer for spin drying, and the cleaning agent that is spun out flows back to the storage tank for recycling;

[0020] The dried hazardous waste plastic flakes are directly discharged from the dryer into a primary ultrasonic cleaning tank for ultrasonic cleaning to remove contaminants on the surface of the hazardous waste plastic flakes;

[0021] The hazardous waste plastics cleaned by ultrasonic wave are lifted by a hoist to a secondary cleaning tank for cleaning to further remove contaminants on the surface of the hazardous waste plastics;

[0022] The hazardous waste plastics after secondary cleaning are lifted to the primary rinsing tank by a hoist to separate the impurities in the hazardous waste plastics from the hazardous waste plastics;

[0023] The hazardous waste plastics that have been rinsed in the first stage are sent to the second stage rinsing tank after friction cleaning by the scooping and cleaning machine to completely remove the surface residues of the hazardous waste plastics;

[0024] The hazardous waste plastics after secondary rinsing are sent to another spin dryer through a scooping machine for spin drying and dehydration;

[0025] The dehydrated hazardous waste plastics are dried in an air dryer and then transported to an elevator through a conveyor belt and then transported to the corresponding silo for plastics for packaging.

[0026] Optionally, the step of processing the hazardous waste metals is carried out in parallel with the step of processing the hazardous waste plastics.

[0027] The present application also discloses a fully automatic recycling and utilization treatment system for hazardous waste, wherein the hazardous waste includes hazardous waste metals and hazardous waste plastics, and is characterized in that it includes a control room, a mixing silo, a strong magnetic conveyor belt, a hazardous waste metal treatment system, and a hazardous waste plastic treatment system. The mixing silo is connected to the hazardous waste metal treatment system and the hazardous waste plastic treatment system respectively through the strong magnetic conveyor belt. The control room includes a control terminal and a display screen. The control terminal is electrically connected to the display screen, the mixing silo, the strong magnetic conveyor belt, the hazardous waste metal treatment system and the hazardous waste plastic treatment system respectively; the control terminal is used to control the operation of the mixing silo, the strong magnetic conveyor belt, the hazardous waste metal treatment system and the hazardous waste plastic treatment system, and the display screen is used to display the control interface of the control terminal and the operating data of the mixing silo, the strong magnetic conveyor belt, the hazardous waste metal treatment system and the hazardous waste plastic treatment system respectively.

[0028] Optionally, the hazardous waste metal processing system includes a metal silo, a metal shredder, a metal friction cleaning machine, a magnetic separator, a spiral cleaning machine, an extruder, multiple conveyor belts and multiple silos; the strong magnetic conveyor belt is connected to the metal silo through a conveyor belt, the metal silo is connected to the metal shredder through a conveyor belt, the metal shredder is connected to the metal friction cleaning machine through a conveyor belt, the metal friction cleaning machine is connected to the magnetic separator through a conveyor belt, the spiral cleaning machine is connected to the magnetic separator through a conveyor belt, the extruder is connected to the magnetic separator through a conveyor belt, the extruder is connected to a silo through a conveyor belt, and the spiral cleaning machine is connected to a silo through a conveyor belt.

[0029] Optionally, the hazardous waste plastic treatment system includes a plastic shredder, a plastic silo, a screw conveyor, a strong magnetic conveyor, a slicer, a first spin dryer, a second spin dryer, a first ultrasonic cleaning tank, a second cleaning tank, a first rinsing tank, a scoop cleaning machine, a second rinsing tank, a scoop machine, multiple elevators, a silo and multiple conveyor belts; the plastic shredder is connected to the plastic silo through a conveyor belt; the strong screw conveyor is arranged at the bottom of the plastic material, the screw conveyor is connected to the slicer through a strong magnetic conveyor, and the slicer is connected to the first The spin dryers are connected to each other through a hoist, the outlet of the first spin dryer is connected to the first-level ultrasonic cleaning tank, the first-level ultrasonic cleaning tank is connected to the second-level cleaning tank through a hoist, the second-level cleaning tank is connected to the first-level rinsing tank through a hoist, the first-level rinsing tank and the second-level rinsing tank are connected through the first-level scooping cleaning machine, the second-level scooping cleaning machine and the second spin dryer are connected through the second-level scooping cleaning machine, and the second spin dryer is connected to the silo through a conveyor belt and a hoist in sequence.

[0030] Optionally, the hazardous waste metal is shredded into metal sheets with a size of 50-200 mm by the metal shredder, and the metal shredder is provided with a vibrating screen for screening.

[0031] Optionally, the hazardous waste plastic processing system also includes a cleaning agent storage tank, a cleaning component is provided in the slicer, the cleaning agent storage tank is respectively connected to the cleaning component and the first dryer, and the hazardous waste plastic is cut into fragments with a size of 0-16 mm after passing through the slicer.

[0032] Optionally, the treatment system also includes a sewage treatment device, the control end is electrically connected to the sewage treatment device, and the sewage treatment device is respectively connected to the metal shredder, the extruder, the metal friction cleaning machine, the spiral cleaning machine, the first-level ultrasonic cleaning tank, the second-level cleaning tank, the first-level rinsing tank and the second-level rinsing tank.

[0033] Optionally, the fully automatic recycling and utilization treatment system for hazardous waste also includes a hazardous waste storage cabinet, on which is provided an information transmitting device and an information collecting device which are electrically connected to each other, and the control end includes an information receiving device, which is respectively connected to the information transmitting device and the information collecting device via signals.

[0034] Optionally, the information collection device includes a weight measuring module for collecting the weight of hazardous waste in the hazardous waste storage cabinet and a positioning module for collecting the position of the hazardous waste storage cabinet, and the weight measuring module and the positioning module are electrically connected to the information transmitting device respectively.

[0035] Compared with the existing scheme of simply using water and detergent to clean hazardous waste contaminated with hazardous waste, when the present application processes hazardous waste in the auto repair industry, the mixed hazardous waste contaminated with hazardous waste is first classified. Because the mixed hazardous waste mainly includes hazardous waste metals and hazardous waste plastics, and a small amount of other impurities, the mixed hazardous waste is poured into a mixed material bin, and the hazardous waste metals and hazardous waste plastics are separated by a strong magnetic conveyor belt and transported to the corresponding processing lines respectively. Among them, the processing of hazardous waste metals is sequentially shredded into metal sheets by a metal shredder, and the waste liquid contaminated on the metal sheets is separated by a vibrating screen, and the waste liquid is discharged into a sewage treatment device; and the metal sheets after the waste liquid is separated are passed through a metal friction cleaning machine. The contaminants on the surface of the metal sheet are cleaned by friction, and high-pressure water is injected for flushing to clean the surface of the metal sheet; the metal sheet coming out of the metal friction cleaning machine is conveyed to the magnetic separator through a conveyor belt to separate the metal sheet from the paint residue, filter paper and other contaminants that are friction cleaned, and the metal sheet after separation is sent to the spiral cleaning machine through a conveyor belt for further cleaning, and the cleaned metal sheet is air-dried and then conveyed to the corresponding silo for packaging, and can be used as metal raw materials again; the separated paint residue and shredded paper are sent to the extruder through a conveyor belt to squeeze out the waste liquid, and the waste liquid enters the factory sewage treatment device for treatment, and the filter paper after extrusion is sent to the corresponding silo for packaging through a conveyor belt, and then entrusted to a qualified unit for treatment. The hazardous waste plastics that are processed at the same time as the hazardous waste metals are first shredded in a plastic shredder, and the shredded hazardous waste plastics are sent to a plastic silo through a conveyor belt for temporary storage; then the hazardous waste plastics are conveyed to a strong magnetic conveyor through a screw conveyor at the bottom of the plastic silo to completely remove the hazardous waste metals mixed in the hazardous waste plastics, and the hazardous waste plastics are sent to a slicer through a strong magnetic conveyor to be cut into pieces, and a cleaning agent is used for preliminary cleaning during the slicing process; the cleaned plastic slices are sent to a spin dryer through an elevator to spin out the cleaning agent, and the spinning cleaning agent flows into a reuse storage tank and can be recycled, and the plastic slices enter a primary ultrasonic cleaning tank for heating and cleaning, and most of the contaminants on the surface of the plastic slices are separated from the plastic slices; The plastic slices are sent to the secondary cleaning tank through the elevator for heating and cleaning, and the contaminants are further separated from the plastic slices; the plastic slices are sent to the primary rinsing tank through the elevator for rinsing, and the primary rinsing can separate the impurities in the plastic fragments from the plastic; the plastic slices are rubbed and cleaned again by the scooping cleaning machine and sent to the secondary rinsing tank for another rinse, and the residues on the surface of the plastic slices are thoroughly cleaned again; the plastic slices are sent to another spin dryer through the scooping machine for strong dehydration, and the moisture content of the dehydrated plastic slices is less than 5%; the dehydrated plastic slices are air-dried by the air dryer and sent to the plastic slice product conveyor belt. The plastic slice products enter the corresponding silo through the conveyor belt and the elevator for bagging and packaging, and can be used as plastic raw materials.Therefore, the hazardous waste from the auto repair industry treated in this application finally obtains hazardous waste metals and hazardous waste plastics that can be used as raw materials, and the sewage generated will be sent to the sewage treatment device within the factory for treatment, and finally obtains recyclable water, thereby achieving thorough cleaning, resource recycling and environmentally friendly hazardous waste treatment. The whole process is automated to avoid close contact between operators and hazardous waste, thereby ensuring the health of employees, and making hazardous waste plastics and hazardous waste metals contaminated with hazardous waste no longer hazardous waste, but become raw materials for downstream enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation methods of the present application, and together with the text description, explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0037] Figure 1 is a schematic diagram of a hazardous waste treatment process for contaminated hazardous waste according to an embodiment of the present application;

[0038] Figure 2 It is a schematic diagram of a structural block diagram of a hazardous waste treatment system according to an embodiment of the present application;

[0039] Figure 3 It is a schematic diagram of a hazardous waste treatment system device according to an embodiment of the present application.

[0040] Among them, 100, fully automatic recycling treatment system for hazardous waste; 101, control room; 102, mixing silo; 103, strong magnetic conveyor belt; 104, hazardous waste metal treatment system; 105, hazardous waste plastic treatment system; 106, control terminal; 107, display screen; 108, metal silo; 109, metal shredder; 110, metal friction cleaning machine; 111, magnetic separator; 112, spiral cleaning machine; 113, extruder; 114, conveyor belt; 115, silo; 116, vibrating screen; 117, plastic shredder; 118, plastic silo; 119 , strong magnetic conveyor; 120, slicer; 121, first spin dryer; 122, second spin dryer; 123, first ultrasonic cleaning tank; 124, second cleaning tank; 125, first rinsing tank; 126, scoop cleaning machine; 127, second rinsing tank; 128, scoop machine; 129, elevator; 130, storage tank; 131, sewage treatment device; 132, hazardous waste storage cabinet; 133, information transmitting device; 134, information collecting device; 135, information receiving device; 136, weighing module; 137, positioning module; 138, screw conveyor. DETAILED DESCRIPTION

[0041] It should be understood that the terms used herein, the specific structures and functional details disclosed are only for describing specific embodiments and are representative, but the present application can be implemented in many alternative forms and should not be construed as being limited to only the embodiments described herein.

[0042] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, unless otherwise specified, features defined as "first" and "second" may explicitly or implicitly include one or more of the features; "plurality" means two or more. The term "including" and any variation thereof means non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components and / or combinations thereof may exist or be added.

[0043] In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internally connected between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] The present application is described in detail below with reference to the accompanying drawings and optional embodiments.

[0045] like Figure 1 As shown, as an embodiment of the present application, a method for fully automatic recycling of hazardous waste is disclosed, comprising the steps of:

[0046] S1. Pour the mixed hazardous waste of hazardous waste metals and hazardous waste plastics contaminated with hazardous waste into the mixing silo;

[0047] S2. Mixed hazardous waste is initially separated by a strong magnetic conveyor belt, and the hazardous waste plastics are transported to a plastic shredder. The hazardous waste metals screened by the strong magnetic filter are transported to a conveyor belt and transported to a metal silo.

[0048] The treatment steps for separated hazardous waste metals include:

[0049] S3. Hazardous waste metals are transported from a metal silo to a metal shredder through a conveyor belt to be shredded into hazardous waste metal pieces. The shredded hazardous waste metal pieces fall directly onto a vibrating screen in the metal shredder to remove waste liquid on the surface of the hazardous waste metal pieces through the vibrating screen, and the waste liquid is discharged to a sewage treatment device;

[0050] S4. The hazardous waste metal pieces that have been shredded and separated into solid and liquid are transported from the metal shredder to the metal friction cleaning machine through a conveyor belt for simultaneous cleaning by friction and high-pressure water flow;

[0051] S5. After friction and high-pressure cleaning, the hazardous waste metal pieces and the impurities washed away are transported from the metal friction cleaning machine to the magnetic separator via a conveyor belt to separate the relatively clean hazardous waste metal pieces from other washed away impurities;

[0052] S6. The relatively clean hazardous waste metal pieces obtained after separation are sent to a spiral cleaning machine for cleaning through a conveyor belt. The cleaned hazardous waste metal pieces are air-dried in an air dryer and then transported to a corresponding silo for metal storage through a conveyor belt for bagging and packaging; and

[0053] S7, the separated impurities are transported to an extruder through a conveyor belt, the liquid in the impurities is squeezed out and discharged to a sewage treatment device, and the compacted impurities are transported to a corresponding silo for impurities through a conveyor belt and then bagged and packaged;

[0054] The treatment steps for separated hazardous waste plastics include:

[0055] S8, the strong magnetic conveyor belt directly guides the separated hazardous waste plastics into the plastic shredder for shredding;

[0056] S9. Shredded hazardous waste plastics are transported to a plastic silo via a conveyor belt;

[0057] S10. The hazardous waste plastics and the residual hazardous waste metals in the plastic silo are conveyed to the strong magnetic conveyor via a screw conveyor to separate the residual hazardous waste metals, and the separated hazardous waste plastics are conveyed to the slicer for slicing and cleaning with a cleaning agent. The separated hazardous waste metals are manually collected and transported to the hazardous waste metal processing line;

[0058] S11, the hazardous waste plastic pieces after being sliced ​​and cleaned with a cleaning agent are lifted by a hoist to a spin dryer for spin drying, and the washed cleaning agent is returned to a storage tank for recycling;

[0059] S12. The dried hazardous waste plastic sheets are directly discharged from the dryer into a first-level ultrasonic cleaning tank for ultrasonic cleaning to remove contaminants on the surface of the hazardous waste plastic sheets;

[0060] S13. The hazardous waste plastics cleaned by ultrasonic wave are lifted by a hoist to a secondary cleaning tank for cleaning to further remove contaminants on the surface of the hazardous waste plastics;

[0061] S14. The hazardous waste plastics after secondary cleaning are lifted to the primary rinsing tank by a hoist to separate the impurities in the hazardous waste plastics from the hazardous waste plastics;

[0062] S15. The hazardous waste plastics after primary rinsing are sent to the secondary rinsing tank after friction cleaning by the material scooping cleaning machine to completely remove the surface residues of the hazardous waste plastics;

[0063] S16, the hazardous waste plastics after secondary rinsing are sent to another spin dryer through a scooping machine for spin drying and dehydration; and

[0064] S17, the dehydrated hazardous waste plastics are dried in an air dryer and then transported to an elevator through a conveyor belt and then transported to a corresponding silo for plastics for packaging.

[0065] Compared with the existing scheme of simply using water and cleaning agents to clean hazardous waste contaminated with hazardous waste, this scheme treats hazardous waste in the auto repair industry by first classifying the mixed hazardous waste contaminated with hazardous waste. Because the mixed hazardous waste mainly includes hazardous waste metals and hazardous waste plastics, and a small amount of other impurities, the mixed hazardous waste is poured into the mixing bin 102, and the hazardous waste metals and hazardous waste plastics are separated by a strong magnetic conveyor belt 103 and transported to the corresponding processing lines respectively. Among them, the hazardous waste metals are sequentially shredded into metal sheets by a metal shredder 109, and the waste liquid contaminated on the metal sheets is separated by vibration through a vibrating screen 116, and the waste liquid is discharged into a sewage treatment device 131; and the metal sheets separated from the waste liquid are rubbed and cleaned by a metal friction cleaning machine 110 to remove contaminants on the surface of the metal sheets, and at the same time High-pressure water is injected for flushing to clean the surface of the metal sheet; the metal sheet coming out of the metal friction cleaning machine 110 is conveyed to the magnetic separator 111 through the conveyor belt 114 to separate the metal sheet from the paint residue, filter paper and other contaminants washed by friction, and the metal sheet after separation is sent to the spiral cleaning machine 112 through the conveyor belt 114 for further cleaning, and the cleaned metal sheet is air-dried and then sent to the corresponding silo 115 for packaging through the conveyor belt 114, and can be used as metal raw materials again; and the separated paint residue and shredded paper are sent to the extruder 113 through the conveyor belt 114 to squeeze out the waste liquid, and the waste liquid enters the factory sewage treatment device 131 for treatment, and the filter paper after extrusion is sent to the corresponding silo 115 for packaging through the conveyor belt 114, and then entrusted to a qualified unit for treatment, It can be used for other purposes without contamination with hazardous waste.The hazardous waste plastics to be processed at the same time as the hazardous waste metals are first shredded in a plastic shredder 117, and the shredded hazardous waste plastics are sent to a plastic silo 118 for temporary storage through a conveyor belt 114; then, the hazardous waste plastics are conveyed to a strong magnetic conveyor 119 through a screw conveyor 138 at the bottom of the plastic silo 118 to completely remove the hazardous waste metals mixed in the hazardous waste plastics, and the hazardous waste plastics are sent to a slicer 120 through the strong magnetic conveyor 119 to be cut into pieces, and a cleaning agent is used for preliminary cleaning during the slicing process; the cleaned plastic slices pass through an elevator 129 into a spin dryer to spin out the cleaning agent, and the spinning cleaning agent flows into a reuse storage tank 130 and can be recycled, and the plastic slices enter a primary ultrasonic cleaning tank 123 for heating and cleaning, and most of the contaminants on the surface of the plastic slices are separated from the plastic slices; The plastic slices are sent to the secondary cleaning tank 124 through the elevator 129 for heating and cleaning, and the contaminants are further separated from the plastic slices; the plastic slices are sent to the primary rinsing tank 125 through the elevator 129 for rinsing, and the primary rinsing can separate the impurities in the plastic fragments from the plastic; the plastic slices are sent to the secondary rinsing tank 127 for rinsing again after friction cleaning by the scooping cleaning machine 126, and the residues on the surface of the plastic slices are thoroughly cleaned again; the plastic slices are sent to another spin dryer through the scooping machine 128 for strong dehydration, and the moisture content of the dehydrated plastic slices is less than 5%; the dehydrated plastic slices are air-dried by the air dryer and sent to the plastic slice product conveyor belt 114, and the plastic slice products enter the corresponding silo 115 through the conveyor belt 114 and the elevator 129 for bagging and packaging, and can be used as plastic raw materials. Therefore, the hazardous wastes of the auto repair industry processed by this scheme finally obtain hazardous waste metals and hazardous waste plastics that can be used as raw materials, and the sewage generated will be sent to the sewage treatment device 131 in the factory area for treatment, and finally obtain water that can be recycled, achieving thorough cleaning, resource recycling and environmentally friendly hazardous waste treatment, and full automation, avoiding close contact between operators and hazardous wastes, ensuring the health of employees, and making hazardous waste plastics and hazardous waste metals contaminated with hazardous wastes no longer hazardous wastes, but become raw materials for downstream enterprises. Among them, the treatment steps of hazardous waste metals and hazardous waste plastics in this scheme are parallel and complementary, so that the normal use of other treatment lines will not be affected by the temporary failure of one of the treatment lines. Steps S6 and S7 in this scheme are carried out simultaneously, and the hazardous waste plastics cleaned in steps S12, S13, S14 and S15 will appear in two states of floating and sinking. The corresponding hoists 129 are set up respectively for the two states to transport them to the next step for treatment.

[0066] Among them, the types of hazardous wastes treated in this plan are shown in Table 1 below:

[0067]

[0068] Table 1 Categories of hazardous wastes collected, recycled and utilized in this project

[0069] like Figure 2 and Figure 3 As shown, as another embodiment of the present application, a fully automatic recycling treatment system 100 for hazardous waste is disclosed, including a control room 101, a mixing bin 102, a strong magnetic conveyor belt 103, a hazardous waste metal treatment system 104, and a hazardous waste plastic treatment system 105. The mixing bin 102 is connected to the hazardous waste metal treatment system 104 and the hazardous waste plastic treatment system 105 through the strong magnetic conveyor belt 103, respectively. The control room 101 includes a control terminal 106 and a display screen 107. The control terminal 106 is connected to the display screen 107, the mixing bin 102, and the strong magnetic conveyor belt 103. 02. The strong magnetic conveyor belt 103, the hazardous waste metal processing system 104 and the hazardous waste plastic processing system 105 are electrically connected respectively; the control end 106 is used to control the operation of the mixing bin 102, the strong magnetic conveyor belt 103, the hazardous waste metal processing system 104 and the hazardous waste plastic processing system 105, and the display screen 107 is used to display the control interface of the control end 106 and the operating data of the mixing bin 102, the strong magnetic conveyor belt 103, the hazardous waste metal processing system 104 and the hazardous waste plastic processing system 105 respectively. Each functional device in the hazardous waste treatment system 100 disclosed in the present scheme is connected to the control room 101. The control terminal 106 of the control room 101 can accurately control the mixing bin 102, the strong magnetic conveyor belt 103, the hazardous waste metal treatment system 104 and the hazardous waste plastic treatment system 105. In addition, a manual switch is also provided on each offline device, which is convenient for the operator to operate. At the same time, the display screen 107 is electrically connected to the control terminal 106, so that the required processing parameters are displayed on the screen, which is convenient for the operator to directly view and obtain, so as to determine whether it is a normal processing state. In addition, a monitoring device is also provided in the workshop, and the monitoring device is also connected to the display screen 107, which is convenient for the operator to inspect the workshop status. Of course, monitoring and corresponding control can be easily achieved by existing technologies and will not be elaborated here.

[0070] The hazardous waste metal processing system 104 includes a metal silo 108, a metal shredder 109, a metal friction cleaning machine 110, a magnetic separator 111, a spiral cleaning machine 112, an extruder 113, a plurality of conveyor belts 114 and a plurality of silos 115; the strong magnetic conveyor belt 103 is connected to the metal silo 108 via a conveyor belt 114, the metal silo 108 is connected to the metal shredder 109 via a conveyor belt 114, the metal shredder 109 is connected to the metal friction cleaning machine 110 via a conveyor belt 114. 4, the metal friction cleaning machine 110 is connected to the magnetic separator 111 through the conveyor belt 114, the spiral cleaning machine 112 is connected to the magnetic separator 111 through the conveyor belt 114, the extruder 113 is connected to the magnetic separator 111 through the conveyor belt 114, the extruder 113 is connected to a silo 115 through the conveyor belt 114, the spiral cleaning machine 112 is connected to a silo 115 through the conveyor belt 114, and the metal shredder 109 is provided with a vibrating screen 116.

[0071] The scheme discloses a hazardous waste metal treatment system 104, wherein the hazardous waste metal is sequentially shredded into metal sheets by a metal shredder 109, and then separated from the waste liquid on the metal sheets by a vibrating screen 116, and the waste liquid is discharged into a sewage treatment device 131; the metal sheets separated from the waste liquid are subjected to friction cleaning by a metal friction cleaning machine 110 to clean the contaminants on the surface of the metal sheets, and at the same time, high-pressure water is injected for flushing to clean the surface of the metal sheets; the metal sheets coming out of the metal friction cleaning machine 110 are conveyed to a magnetic separator 111 by a conveyor belt 114 to separate the metal sheets from the friction cleaning layer; The paint residue, filter paper and other contaminants are separated, and the separated metal sheets are sent to the spiral cleaning machine 112 through the conveyor belt 114 for further cleaning. The cleaned metal sheets are air-dried and then packaged in the corresponding silo 115 through the conveyor belt 114, and can be used as metal raw materials again; the separated paint residue and shredded paper are sent to the extruder 113 through the conveyor belt 114 to squeeze out the waste liquid, and the waste liquid enters the factory sewage treatment device 131 for treatment. The filter paper after extrusion is sent to the corresponding silo 115 through the conveyor belt 114 for packaging, and can be used for other purposes without any contamination of hazardous waste.

[0072] The hazardous waste plastic treatment system 105 includes a plastic shredder 117, a plastic silo 118, a screw conveyor 138, a strong magnetic conveyor 119, a slicer 120, a first spin dryer 121, a second spin dryer 122, a primary ultrasonic cleaning tank 123, a secondary cleaning tank 124, a primary rinsing tank 125, a scoop cleaning machine 126, a secondary rinsing tank 127, a scoop machine 128, multiple elevators 129, a silo 115 and multiple conveyor belts 114; the plastic shredder 117 is connected to the plastic silo 118 through the conveyor belt 114; the screw conveyor 138 is arranged at the bottom of the plastic silo 118, the screw conveyor 138 is connected to the slicer 120 through the strong magnetic conveyor 119, and the slicer 120 is connected to the first spin dryer 121 through the elevator 129 The outlet of the first spin dryer 121 is connected to the first-level ultrasonic cleaning tank 123, the first-level ultrasonic cleaning tank 123 is connected to the second-level cleaning tank 124 through a hoist 129, the second-level cleaning tank 124 is connected to the first-level rinsing tank 125 through a hoist 129, the first-level rinsing tank 125 is connected to the second-level rinsing tank 127 through the first-level scooping cleaning machine 126, the second-level scooping cleaning machine 126 is connected to the second spin dryer 122, the second spin dryer 122 is connected to the silo 115 in turn through a conveyor belt 114 and a hoist 129, wherein the hazardous waste plastic treatment system 105 also includes a storage tank 130, and the storage tank 130 can be flow-connected with the slicer 120 and the first spin dryer 121 respectively.

[0073] The present scheme discloses a processing line for hazardous waste plastics. The hazardous waste plastics to be processed simultaneously with the hazardous waste metals are first shredded in a plastic shredder 117. The shredded hazardous waste plastics are sent to a plastic silo 118 through a conveyor belt 114 for temporary storage. Then, a screw conveyor 138 at the bottom of the plastic silo 118 conveys the hazardous waste plastics to a strong magnetic conveyor belt with strong magnetism to completely remove the hazardous waste metals in the hazardous waste plastics. The hazardous waste plastics are sent to a slicer 120 through a strong magnetic conveyor 119 to be cut into pieces. A cleaning agent is used for preliminary cleaning during the slicing process. The cleaned plastic slices pass through an elevator 129 into a spin dryer to spin out the cleaning agent. The spinning cleaning agent flows into a reuse storage tank 130 and can be recycled. The plastic slices enter a primary ultrasonic cleaning tank 123 for heating and cleaning to remove most of the contaminants on the surface of the plastic slices. Separated from plastic slices; the plastic slices are sent to the secondary cleaning tank 124 through the elevator 129 for heating and cleaning, and the contaminants are further separated from the plastic slices; the plastic slices are sent to the primary rinsing tank 125 through the elevator 129 for rinsing, and the primary rinsing can separate the impurities in the plastic fragments from the plastic; the plastic slices are sent to the secondary rinsing tank 127 for rinsing again after friction cleaning by the scooping cleaning machine 126, and the residues on the surface of the plastic slices are thoroughly cleaned again; the plastic slices are sent to another spin dryer through the scooping machine 128 for strong dehydration, and the moisture content of the dehydrated plastic slices is less than 5%; the dehydrated plastic slices are air-dried by the air dryer and sent to the plastic slice product conveyor belt 114, and the plastic slice products enter the corresponding silo 115 through the conveyor belt 114 and the elevator 129 for bagging and packaging, and can be used as plastic raw materials.

[0074] Specifically, the fully automatic recycling and utilization treatment system 100 for hazardous waste also includes a sewage treatment device 131, the control end 106 is electrically connected to the sewage treatment device 131, and the sewage treatment device 131 is respectively connected to the metal shredder 109, the extruder, the metal friction cleaning machine, the spiral cleaning machine, the first-level ultrasonic cleaning tank, the second-level cleaning tank, the first-level rinsing tank and the second-level rinsing tank. The hazardous waste metal is shredded into metal sheets with a size of 50-200 mm after passing through the metal shredder 109; the slicer 120 is provided with a cleaning part, and the cleaning agent storage tank 130 is connected to the cleaning part. The hazardous waste plastic is cut into fragments with a size of 0-16 mm after passing through the slicer 120. The metal shredder 109 disclosed in the present scheme can tear the hazardous waste metal into metal sheets of 50-200mm, which is convenient for subsequent cleaning operations, and the vibrating screen 116 is used to vibrate the metal sheets to remove waste liquid, and the waste liquid will be discharged to the sewage treatment device 131 connected to the metal shredder 109 for treatment; and the hazardous waste plastic is initially cleaned with a cleaning agent during the slicing process in the slicer 120, wherein the hazardous waste plastic is cut into fragments not larger than 16mm, and then the cleaning agent on the surface of the plastic fragments is thrown out by the first spin dryer 121 and discharged into the reuse storage tank 130 for the next use. In this way, the entire setting not only realizes the reuse of resources, but also prevents pollutants from flowing out to pollute the environment, and the devices involving sewage discharge in the entire hazardous waste fully automatic recycling treatment system are all connected to the sewage treatment device to purify and reuse the sewage.

[0075] Furthermore, the hazardous waste fully automatic recycling treatment system 100 also includes a hazardous waste storage cabinet 132, on which an information transmitter 133 and an information collector 134 are electrically connected to each other, and the control terminal 106 includes an information receiver 135, which is connected to the information transmitter 133 and the information collector 134 respectively through signals. The hazardous waste storage cabinet 132 disclosed in this solution is used by an organization that produces hazardous waste, specifically, for example, an automobile repair shop, and each hazardous waste storage cabinet 132 has an information transmitter 133 and an information collector 134, and then the information collector 134 collects information of preset instructions, and then the information transmitter 133 transmits the collected information to the hazardous waste treatment site, that is, the hazardous waste treatment system 100 disclosed in this application.

[0076] Among them, the information collection device 134 includes a weighing module 136 for collecting the weight of hazardous waste in the hazardous waste storage cabinet 132 and a positioning module 137 for collecting the position of the hazardous waste storage cabinet 132. The weighing module 136 and the positioning module 137 are electrically connected to the information transmitting device 133 respectively. In order to respond to national policies and prevent hazardous waste from being discharged privately by production agencies to pollute the environment, the information collection device 134 disclosed in this solution includes a weight measurement module 136 for collecting the weight of hazardous waste in the hazardous waste storage cabinet 132 and a positioning module 137 for collecting the position of the hazardous waste storage cabinet 132. In this way, if the production agency wants to take out the hazardous waste contaminated with hazardous waste from the hazardous waste storage cabinet 132, the weight measurement module 136 will detect the weight change and send the information to the hazardous waste treatment plant, or the hazardous waste storage cabinet 132 can be directly connected to the signal of the relevant regulatory department, and the information that the production agency privately handles illegal hazardous waste is sent to the relevant regulatory department. At the same time, the positioning module 137 can locate the position of the hazardous waste storage cabinet 132, which can facilitate the search for the corresponding illegal production agency. Of course, the hazardous waste storage cabinet 132 is also disclosed in the prior art, so it will not be elaborated here.

[0077] In addition, the strong magnetic conveyor belt and the strong magnetic conveyor in the present application are both realized by installing components with strong magnetism on the conveyor belt.

[0078] It should be noted that the limitations on the various steps involved in this solution, without affecting the implementation of the specific solution, are not deemed to limit the order of the steps. The steps written in front can be executed first, or later, or even simultaneously. As long as this solution can be implemented, it should be deemed to fall within the scope of protection of this application.

[0079] The above content is a further detailed description of the present application in combination with specific optional implementation methods, and it cannot be determined that the specific implementation of the present application is limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, several simple deductions or substitutions can be made without departing from the concept of the present application, which should be deemed to fall within the scope of protection of the present application.

Claims

1. A method for fully automatic recycling of hazardous waste, wherein the hazardous waste includes hazardous waste metal and hazardous waste plastic contaminated with hazardous waste, respectively referred to as hazardous waste metal and hazardous waste plastic, characterized in that: The method comprises the steps of: pouring mixed hazardous wastes of hazardous waste metals and hazardous waste plastics contaminated with hazardous waste into a mixing silo; The mixed hazardous waste is initially separated by a strong magnetic conveyor belt, and the hazardous waste plastics are transported to a plastic shredder. The hazardous waste metals screened by the strong magnetic filter are transported to a conveyor belt and transported to a metal silo. The treatment steps for separated hazardous waste metals include: The hazardous waste metal is transported from the metal silo to the metal shredder through a conveyor belt to be shredded into hazardous waste metal pieces. The shredded hazardous waste metal pieces fall directly onto the vibrating screen in the metal shredder, and the waste liquid on the surface of the hazardous waste metal pieces is removed by the vibration screen, and the waste liquid is discharged to the sewage treatment device; The hazardous waste metal pieces that have been shredded and separated into solid and liquid are transported from the metal shredder to the metal friction cleaning machine through a conveyor belt for simultaneous cleaning by friction and high-pressure water flow; After friction and high-pressure cleaning, the hazardous waste metal pieces and the impurities washed away are transported from the metal friction cleaning machine to the magnetic separator via a conveyor belt to separate the cleaner hazardous waste metal pieces from other washed impurities; The cleaned hazardous waste metal pieces are sent to a spiral cleaning machine through a conveyor belt for cleaning. The cleaned hazardous waste metal pieces are dried in an air dryer and then transported to the corresponding silo for metal storage through a conveyor belt for bagging and packaging. The separated impurities are transported to the extruder through a conveyor belt, and the liquid in the impurities is pressed out and discharged to the sewage treatment device. The compacted impurities are transported to the corresponding silo for impurities through a conveyor belt and then bagged and packaged; The treatment steps for separated hazardous waste plastics include: The strong magnetic conveyor belt directly guides the separated hazardous waste plastics into the plastic shredder for shredding; The shredded hazardous waste plastics are transported to the plastic silo via a conveyor belt; The hazardous waste plastics and residual hazardous waste metals in the plastic silo are transported to the strong magnetic conveyor via a screw conveyor to separate the residual hazardous waste metals, and the separated hazardous waste plastics are transported to the slicer for slicing and cleaning with a cleaning agent. The separated hazardous waste metals are manually collected and transported to the hazardous waste metal processing line; the hazardous waste plastic pieces after slicing and cleaning with a cleaning agent are lifted by a hoist to a spin dryer for drying, and the discarded cleaning agent is returned to the storage tank for recycling; The dried hazardous waste plastic flakes are directly discharged from the dryer into a first-level ultrasonic cleaning tank for ultrasonic cleaning to remove contaminants on the surface of the hazardous waste plastic flakes; The hazardous waste plastics cleaned by ultrasonic wave are lifted by a hoist to a secondary cleaning tank for cleaning to further remove contaminants on the surface of the hazardous waste plastics; The hazardous waste plastics after secondary cleaning are lifted to the primary rinsing tank by a hoist to separate the impurities in the hazardous waste plastics from the hazardous waste plastics; The hazardous waste plastics that have been rinsed in the first stage are sent to the second stage rinsing tank after friction cleaning by the scooping and cleaning machine to completely remove the surface residues of the hazardous waste plastics; The hazardous waste plastics after secondary rinsing are sent to another spin dryer through a scooping machine for spin drying and dehydration; The dehydrated hazardous waste plastics are dried in an air dryer and then transported to an elevator through a conveyor belt and then transported to the corresponding silo for plastics for packaging.

2. A method for fully automatic recycling of hazardous wastes as claimed in claim 1, characterized in that: The steps of processing the hazardous waste metals and the steps of processing the hazardous waste plastics are carried out in parallel.

3. A fully automatic recycling system for hazardous waste, wherein the hazardous waste includes hazardous waste metals and hazardous waste plastics, characterized in that: It includes a control room, a mixing silo, a strong magnetic conveyor belt, a hazardous waste metal processing system, and a hazardous waste plastic processing system. The mixing silo is connected to the hazardous waste metal processing system and the hazardous waste plastic processing system respectively through the strong magnetic conveyor belt. The control room includes a control terminal and a display screen. The control terminal is electrically connected to the display screen, the mixing silo, the strong magnetic conveyor belt, the hazardous waste metal processing system, and the hazardous waste plastic processing system respectively. Wherein, the control end is used to control the operation of the mixing bin, the strong magnetic conveyor belt, the hazardous waste metal processing system and the hazardous waste plastic processing system, and the display screen is used to display the control interface of the control end and the operation data of the mixing bin, the strong magnetic conveyor belt, the hazardous waste metal processing system and the hazardous waste plastic processing system respectively; The hazardous waste metal processing system includes a metal silo, a metal shredder, a metal friction cleaning machine, a magnetic separator, a spiral cleaning machine, an extruder, multiple conveyor belts and multiple silos; The strong magnetic conveyor belt is connected to the metal silo through a conveyor belt, the metal silo is connected to the metal shredder through a conveyor belt, the metal shredder is connected to the metal friction cleaning machine through a conveyor belt, the metal friction cleaning machine is connected to the magnetic separator through a conveyor belt, the spiral cleaning machine is connected to the magnetic separator through a conveyor belt, the extruder is connected to the magnetic separator through a conveyor belt, the extruder is connected to a silo through a conveyor belt, and the spiral cleaning machine is connected to a silo through a conveyor belt; The hazardous waste plastic treatment system includes a plastic shredder, a plastic silo, a screw conveyor, a strong magnetic conveyor, a slicer, a first spin dryer, a second spin dryer, a first ultrasonic cleaning tank, a second cleaning tank, a first rinsing tank, a scoop cleaning machine, a second rinsing tank, a scoop machine, multiple elevators, silos and multiple conveyor belts; The plastic shredder is connected to the plastic silo through a conveyor belt; the screw conveyor is arranged at the bottom of the plastic material, the screw conveyor is connected to the slicer through the strong magnetic conveyor, the slicer is connected to the first spin dryer through a lift, the outlet of the first spin dryer is connected to the first ultrasonic cleaning tank, the first ultrasonic cleaning tank is connected to the second cleaning tank through a lift, the second cleaning tank is connected to the first rinsing tank through a lift, the first rinsing tank and the second rinsing tank are connected through a first material scooping cleaning machine, the second rinsing tank and the second spin dryer are connected through a second material scooping cleaning machine, and the second spin dryer is connected to the silo through a conveyor belt and a lift in sequence; It also includes a hazardous waste storage cabinet, on which an information transmitting device and an information collecting device electrically connected to each other are provided, and the control end includes an information receiving device, which is connected to the information transmitting device and the information collecting device respectively through signals; The information collection device includes a weight measuring module for collecting the weight of hazardous waste in the hazardous waste storage cabinet and a positioning module for collecting the position of the hazardous waste storage cabinet. The weight measuring module and the positioning module are electrically connected to the information transmitting device respectively.

4. A fully automatic recycling system for hazardous waste as claimed in claim 3, characterized in that: The hazardous waste metal is shredded into metal pieces with a size of 50-200 mm by the metal shredder, and a vibrating screen for screening is provided in the metal shredder.

5. A fully automatic recycling system for hazardous waste according to claim 4, characterized in that: The hazardous waste plastic processing system also includes a cleaning agent storage tank. A cleaning component is provided in the slicer. The cleaning agent storage tank is connected to the cleaning component and the first dryer respectively. The hazardous waste plastic is cut into fragments with a size of 0-16 mm after passing through the slicer.

6. A fully automatic recycling system for hazardous waste according to claim 5, characterized in that: It also includes a sewage treatment device, the control end is electrically connected to the sewage treatment device, and the sewage treatment device is respectively connected to the metal shredder, the extruder, the metal friction cleaning machine, the spiral cleaning machine, the first-level ultrasonic cleaning tank, the second-level cleaning tank, the first-level rinsing tank and the second-level rinsing tank.

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