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How are solar panels recycled?

Solar panels have become an increasingly common sight on rooftops as more homes and businesses embrace solar power. However, after 20-30 years of use, solar panels will eventually reach the end of their useful life and need to be replaced. This raises an important question – how are old solar panels recycled and disposed of at the end of their useful life?

The solar panel recycling process involves several key stages and techniques:

Collection and transportation

When removing solar panels during a roof replacement or system upgrade, they must first be carefully collected. Older panels are disconnected from the mounting system, and packaging is often placed on the panel to protect its glass side during shipping. The panels are loaded onto trucks and transported to a solar panel recycling facility. Proper handling at this stage can prevent damage that could compromise recovery rates.

Dismantling and classification

Solar panel recycling production line

Once at the recycling plant, the solar panels go through a disassembly process to separate out the different components. Workers first remove the aluminum frame around the solar cells using specialized frame removal equipment. Next, remove the junction box on the back of the panel so you can remove the wires.

Then, the glass on the solar panel is dusted, and the glass on the solar panel is completely removed by the solar non-glass removal equipment developed by SUNY GROUP.

Finally, the solar panels that have been removed from the glass are crushed, sorted and recycled to obtain the metals and non-metals inside.

Glass processing

By weight, the glass substrates that make up the majority of solar panels can be recycled into new glass products. Broken or damaged glass may first need to be broken into smaller pieces using a glass breaker. The glass shards are then melted in a high-temperature furnace at 1,292-1,832 degrees Fahrenheit.

The process separates out any non-glass contaminants, such as polymer backsheets or metal contacts, that float to the top of the molten glass in a process called refractory. The purified glass material can then be shaped or reshaped into new products such as fiberglass insulation, glass bottles or container glass. Some recycled glass can even be reused in new solar panels.

Recycled metal

The entire solar panel contains various precious and base metals, which have high recycling value. Recycled aluminum is recycled into new aluminum products. Electrical contacts made of silver, copper and other materials are further processed and refined to separate and recover their pure metal components. Metal requires more energy-intensive recycling than glass, but recycling metal from end-of-life panels helps conserve natural resources.

The complete set of solar panel recycling production line developed by SUNY GROUP can make almost all components of solar panels can be recycled, reused or used as fuel for power generation. A circular solar economy will facilitate greater adoption of renewable energy technologies while minimizing environmental impact throughout the life cycle.

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What kind of materials can the double shaft shredder shred?

With the development of society, the double-shaft shredder is used by more and more enterprises. With its own advantages, the double-shaft shredder also plays a very important role in material handling. Under the action of the double-shaft shredder, various materials can be processed, and waste cars, waste tires, waste metals, etc. can be shredded, which greatly saves resources and energy.

shredder material

The double-shaft shredder has a good shredding effect, high output, and no noise. It is an ideal equipment for coarse shredding of various scrap iron and steel, scrap aluminum and aluminum alloys, oil drum color steel tiles, cans, and waste household appliances. The equipment has the characteristics of saving transportation costs, saving landfill costs, and recycling and reusing waste after crushing.

The double-shaft shredder is different from the metal shredder equipment. The metal shredder adopts hammer-type impact crushing, while the double-shaft shredder uses double guide rollers to roll and shear in opposite directions. It is mainly used to crush various metals, reducing its volume and saving space. In order to facilitate transportation and recycling, such as scrap iron and aluminum, waste furniture, waste cars and motorcycles, electronic waste, etc.

Double shaft shredder manufacturing workshop

Double-shaft shredders can generally be used to shred hard-to-break aluminum alloys, broken bridge aluminum, rubber tires, car shells, large pipes, wood, electrical components, cables, PET bottles, cardboard, circuit boards, wood, and oil drums , cans and other materials, these materials are bulky, and the processing efficiency of traditional equipment is low, but the coarse crushing effect of materials can be easily achieved through the dual-shaft shredder, which is convenient for subsequent processing of materials.

The working conditions of the cutter of the double-shaft shredder are extremely harsh, and the working intensity is high. Therefore, the surface of the cutter often has peeling, chipping, wear, etc. during the working process. Therefore, manufacturers of the double-shaft shredder require the surface of the cutter to have a high resistance Abrasiveness, but also requires high toughness to adapt to harsh working conditions.

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News

How to recycle waste solar photovoltaic panels?

Scrapped photovoltaic panels, photovoltaic panel components such as monocrystalline silicon and polycrystalline silicon, can be dismantled and recycled by solar panels, which can realize aluminum frames, tempered glass, silicon wafers, aluminum, Separate recycling of silver and copper. The method adopts a combined method of heat treatment technology and chemical method to realize waste crystalline silicon solar panel frame, glass recovery and silicon wafer separation, and valuable metal and silicon wafer recovery. It not only reduces the difficulty of recycling and processing, but also realizes the harmlessness of tail gas, prevents secondary pollution, and protects the environment; among them, the process of physical processing and crushing does not involve the environmental problems of chemical reagents and pyrolysis, conventional crushing and processing In this way, the processing of the whole process can be completed.

solar photovoltaic panel recycling equipment manufacturing workshop

The main components of photovoltaic modules are glass, frame, battery sheet, EVA film, and backplane. Among them, the main component of glass is silicon dioxide, and the secondary components are soda ash, limestone, magnesia, aluminum oxide, Glauber’s salt, carbon; EVA is mainly ethylene-vinyl acetate copolymer; the main components of cells are monocrystalline silicon and polycrystalline silicon. ;The main material of the frame is metal aluminum; the back plate is composed of two layers of PVF film and one layer of PET film. More than 90% of these materials can be recycled.

SUNY GROUP generally needs to go through four steps to recycle a discarded photovoltaic module:

1. To disassemble the components, remove the wire junction box;

2. It is to remove the four frames, and remove the four aluminum frame parts on the outer edge of the entire photovoltaic panel;

2. To remove glass components, the waste photovoltaic panel glass removal machine removes the outer toughened glass;

3. It is a crushing process, crushing photovoltaic panels, and taking out the metal copper and silicon materials in the components.

For waste solar panels, the double-sided glass can also be recycled and reused. The aluminum frame and junction box of the photovoltaic module are removed by physical separation, and then the frameless photovoltaic module is disassembled, and the tin-coated solder strip and glass particles are separated. The remaining parts Grinding is carried out again, and metal, silicon powder, back plate particles and EVA particles are obtained by electrostatic separation. This method obtains a mixture of different materials and realizes the full separation of single components. It has been applied and put into production in domestic and foreign markets. The current complete production line technology is mature and has reached automation.

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Recycling electric vehicle Li-Ion batteries plant

Power battery refers to a battery with large electric energy capacity and output power, which can be equipped with power supply for electric bicycles, electric vehicles, electric equipment and tools. With the vigorous development of new energy electric vehicles, the power battery market has shown a trend of rapid growth; at the same time, the amount of scrapped power batteries is increasing, and the recycling of scrapped power batteries has become an important factor affecting the development of the power battery industry.

Lithium battery recycling production line customer site

Therefore, before recycling the copper and aluminum materials in waste batteries, it is necessary to carry out preliminary pre-treatment of waste batteries. The pre-treatment includes: 1) screening hard shell batteries and soft shell batteries, 2) fully crushing batteries, 3) purifying broken batteries 4) recycle the black powder in the battery.

A device and process for the pre-treatment of waste batteries, the device includes conveying equipment, crushers, dryers, waste gas treatment equipment and black powder recycling equipment, the conveying equipment includes a two-way conveyor that can change the conveying direction, and the two-way conveying The machine separates the hard-shell battery and the soft-shell battery, and transports them to different crushers for crushing, so that they can be differentiated according to the type of battery. For example, the hard-shell battery is preferably crushed with a double-shaft crusher first, and the soft-shell battery It is preferred to use a frequency conversion high-speed crusher for crushing treatment.

The waste gas treatment equipment includes spray tower, UV photolysis waste gas treatment equipment and a row of fans. The waste gas and waste liquid generated by the crusher and dryer pass through the pipeline in turn to spray the tower, UV photolysis waste gas treatment equipment and a row of fans, and discharge The exhaust gas is purified, and then discharged into the air after silencer treatment.

The copper and aluminum materials in the battery are crushed twice in the early stage of recycling, and the crushed battery is screened out by a cyclone collector to screen out the mixture of copper and aluminum particles and the waste gas containing the mixture of black powder. Under the action of pressure and suction, it enters the second cyclone collector, the exhaust end of the third crusher is connected to the second cyclone collector through pipelines, and the discharge end of the second cyclone collector recovers black powder, and the second cyclone collector The exhaust gas is purified through the bag filter, activated carbon adsorption tower and second exhaust fan in sequence.

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News

What is the structure of the cutter shaft of the metal shredder?

The metal shredder is a new type of metal processing professional equipment with large-scale metal coarse crushing effect. It is mainly aimed at the shredding of some large-size scrap steel, color steel tiles, aluminum alloys, and aluminum profiles. The structure of the knife roller of this equipment is compared with that of The traditional metal crusher is quite special. The structure of the cutter shaft includes multiple main shafts and multiple cutter heads. There is a shaft hole in the middle of the cutter head. The discs are superimposed on the main shaft, and also include a moving knife seat, a moving knife, a static knife, a reducer, a workbench, and a main shaft, and seat grooves are symmetrically opened at both ends of the longitudinal and axial directions of each cutter disc. The movable knife seat is arranged in the seat groove, and the movable knife is connected to the movable knife seat and is arranged higher than the movable knife seat.

Shredder Knives

Shredder Knives

1. The structure of the knife roller of the metal shredder

The structure of the metal shredder knife roller has completely changed the traditional way of cleaning and crushing materials only by hammer crushers such as metal crushers. The convenient method of the structure processing department, due to the use of the claws to hold the material and the double-knife rollers to crush and cut each other, makes the processing and shredding of high-hardness materials easy and convenient. Compared with the impact effect of the metal crusher, the processing method of the shredder Easier and easier.

The knife roll structure of the double-shaft metal shredder includes a dynamic knife roll structure and a pure static knife roll structure. Both the first knife roll and the second knife roll materials are suitable for high-definition, high-hardness, and high-toughness alloy knives. The shredder The main shaft, the shaft sleeve and several moving knives on the main shaft complete the work together. The moving knives consist of nesting of several cutter bodies and shaft sleeves. Both sides of the claws contain protruding blades. With the above structure, the crushing High efficiency, long service life of knife roller, high production efficiency.

2. The tooth structure of the metal shredder

The main structure of the existing metal shredder is composed of a motor, a transmission belt, a large inertia knife roller and a blade on the knife roller, as shown in the figure below, the blade structure of the prior art adopts a multi-knife tooth shape, and the specific knife tooth structure includes 3 teeth, 5 teeth, 8 teeth, 24 teeth, etc. These toothed blades are set on the cutter shaft. When the double cutter shafts roll in opposite directions, the cutter tooth structure will block the metal material, and the material will be torn and squeezed under multiple actions It is cut and finally cut by the high torque of the double cutter shaft to form a metal block with uniform shape and size, which increases the material density and makes the shredded material easy to transport. On the other hand, after the material is shredded, it can also be The further fine crushing treatment is carried out by the metal crusher, which is convenient for further material sorting, impurity removal and paint removal treatment, and reduces the difficulty of material smelting.

At present, the recycling and crushing of many large-volume waste metals, color steel tiles, aluminum profiles and other materials need to be mechanically shredded or crushed by metal shredders, so that waste materials can be dismantled, and the crushing efficiency is improved. High, low equipment operating speed, low noise, large shredding torque, high strength and wear-resistant knives for internal use, the moving knife of the knife roller and the fixed knife cooperate, and the shearing force on the material during the transmission process is fully absorbed by the knife shaft and the moving and static knives. Absorption, the metal shredder works stably, the equipment has a long service life, and the replacement of the knife roller is simple and convenient. It is one of the excellent scrap metal processing equipment.

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Aluminum Plastic Waste Medical Blister Recycling Machine

As an industrial product, metal aluminum has a wide range of applications. At present, aluminum-plastic films are widely used as packaging materials. However, a large amount of non-degradable waste produced by it pollutes the environment and causes serious waste of resources.

Aluminum-plastic separation equipment has the characteristics of low noise, large output, and advanced technology. The main purpose is to realize the separation of aluminum-plastic materials by crushing and separating various aluminum-plastic materials. The aluminum-plastic separator recycles aluminum-plastic waste such as aluminum-plastic panels, which can not only maintain the original quality of aluminum, but also recycle plastics, resulting in huge economic benefits.

Aluminum Plastic Waste Medical Blister Recycling Machine

The aluminum-plastic separation equipment is composed of a crusher, a feeding conveyor, a pulverizer, a high-voltage electrostatic separator, and dust removal equipment.

Process flow of plastic-aluminum separator:

1. Grinder: crush aluminum-plastic materials, and the finished material after crushing is about 10mm;

2. Automatic feeding machine: Put the crushed aluminum-plastic material into the automatic feeding machine to make it evenly loaded;

3. Pulverizer: Grind the aluminum-plastic mixture into very fine powder.

4. Rotary vibrating screen: Screen the ground aluminum-plastic materials, the materials that meet the particle size requirements enter the high-voltage electrostatic machine through the bucket elevator for final treatment, and the materials that do not meet the requirements return to the mill for processing and grinding again;

5. Hopper: Dust collection and discharge;

6. High-voltage electrostatic separator: use electrostatic separation to separate metal and plastic, so that aluminum and plastic can be completely separated.

Recently, the new recycling method of aluminum-plastic composite film adopts physical separation method. The physical separation method refers to the method of separating and processing through the aluminum-plastic separator. The aluminum-plastic separator extracts aluminum and plastic from the aluminum-plastic composite film through dry crushing and physical separation, and the separation purity can reach more than 99%. Through the SUNY GROUP aluminum-plastic separator, the separated aluminum and plastic can be directly used for secondary use, alleviating the shortage of aluminum and plastic raw materials in the market. Aluminum separator is currently the most popular aluminum-plastic composite film processing equipment!

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Technical principle and maintenance of paper-plastic separator

The working principle of the paper-plastic separator is that the drive shaft drives the chassis and the rubbing rotor to rotate strongly. The slurry moves from top to bottom along the rotor surface, and then is thrown from the lower part of the rotor to the groove wall, and is subjected to the strong movement of the cutter head again along the groove wall. The high-strength eddy current kneading cycle generated in the process makes all kinds of paper plastics flip up and down in the machine and rotate in the circumferential direction. The pulp is fully disintegrated into fibers and moistened to avoid cutting and damaging the fibers, and flows out from the pulp outlet under the sieve plate. Impurities such as plastic sheets, back-adhesive sheets, and plastic films are less broken (no debris will be formed), and they are discharged from the slag outlet next to the tank, so that the film and plastic are completely separated from the fibers.

Technical principle of paper-plastic separator

Technical principle of paper-plastic separator

Special features of paper-plastic separator:

1. High-strength eddy current and strong pulping effect are generated during work, which promotes full swelling, loosening and dispersion of various paper fibers into single fibers, avoiding excessive cutting, damage, and affecting fiber length and strength. Effectively avoid the breaking of light impurities such as plastic sheets and back film, so as to facilitate screening and removal.

2. Under the condition of medium concentration (4-12%), the fibers rub against each other, extrude, and knead strongly, so that various diaphragms and fibers are separated. At the same time, the viscosity of the pulp suspension is low, the fluidity is strong, and the fibers absorb water and moisten. , become soft and plastic, which is conducive to improving the quality of paper.

Operation and maintenance of paper-plastic separator:

1. Close the slag discharge valve, fill the tank with clean water to 1/3 height, and check whether there is any leakage in the slurry system pipeline. Start the motor, check whether the direction of rotation of the impeller is correct, and pay attention to whether the equipment is running normally.

2. When the equipment is operating normally, it can feed materials. Feeding is based on the principle of uniformity, and the concentration is properly controlled.

3. The raw materials containing coarse impurities and metal impurities should be cleaned up to avoid damage to the equipment.

4. Bearings and lubricating oil circuits should be checked frequently, and oil should be added at least once a month.

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Recycling plant for lithium battery processing unit

With the rapid development of consumer electronics, electric vehicles and large-scale energy storage markets in recent years, the production of lithium-ion batteries, which account for the largest share of energy storage and conversion devices, has grown rapidly. The number of waste lithium-ion batteries has also risen dramatically, and they contain a large number of valuable metal elements and organic electrolyte components that can easily pollute the environment and endanger human health. Therefore, from the point of view of the huge amount of waste, environmental protection and resource recycling, used lithium-ion batteries have a high recycling value. This thesis aims to investigate a green and simple recycling system for used lithium-ion batteries to ensure a high recycling rate while improving the environmental friendliness of the recycling process.

Recycling plant for lithium battery processing unit

The waste lithium battery resource recycling SUNY GROUP environmental protection lithium battery recycling treatment equipment a waste lithium battery treatment system, belongs to the field of waste battery treatment, including lithium battery waste feeding device, crusher, airflow sorting sieve, crusher, analysis machine, a grading sieve, two grading sieve, a specific gravity sifter, two specific gravity sifter, induced fan, collector and pulse purifier. The output of the lithium battery waste feeding device is connected to the crusher, the output of the crusher is connected to the airflow sorting screen, the output of the airflow sorting screen is connected to the collector through the induced draft fan, the other output of the airflow sorting screen is connected to the crusher, the output of the crusher is connected to the analyzer, the analyzer sorts out graphite powder and lithium cobaltate mixed powder and metal waste; the sorted graphite powder and lithium cobaltate mixed powder are transported to the collector through the induced draft fan The metal scrap from the analysis is further sorted and separated.

The utility model system is complete, one set of system can achieve the complete operation of recycling and separation of waste lithium batteries, without the need for other equipment, cobalt, aluminum separation is complete, high purity, high degree of automation, fast production efficiency.

Waste lithium battery recycling system, including: discharging battery, crushing device, filtering device, drying device, stirring device, sieving device, wind selection device; said discharging battery for discharging waste lithium batteries; said crushing device for crushing waste lithium batteries after discharging; said filtering device for filtering waste lithium batteries after crushing, to obtain electrolyte and battery fragments; said drying device for drying the battery fragment; said stirring device for stirring the dried battery fragment, so that the powder in the battery fragment is separated from the block; said vibrating and sieving device for sieving the stirred battery fragment, so that the powder in the battery fragment is separated from the block; said wind selection device for separating the block according to different materials by means of wind.

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Products Scrap Metal Recycling Equipment

Continuous Carbonization Furnace

The continuous charcoal making machine, machine also named continuous pyrolysis furnace is a new type of machine that feeds raw materials and outputs finished materials at the same time. It belongs to an external heating drying and carbonization integrated machine. The flue gas generated in the entire production process is self-utilized, and the exhaust gas passes through the flue gas treatment device. Processing, does not pollute the environment; after technical improvement, the furnace can also be used to recycle and process electronic waste, and realize the recycling of metals and pyrolysis the plastic into carbon, realizing the sorting of metal and plastic.

APPLICABLE MATERIALS

1. Metal recycling: aluminum capacitor recycling, circuit board recycling, waste wire recycling

2. Biomass carbonization: carbonization of biological wastes such as coconut shell, palm shell, hemp, sawdust and so on.

3. Recycling waste clothes to make carbon powder particles

Biomass particles or e-waste with a particle size of less than 50mm and a moisture content of less than 20% can be directly entered into the first-type machine for carbonization. For example, sawdust, coconut shells, fruit shells, palm shells, etc. can be directly carbonized; larger (50mm or more) raw materials, such as aluminum capacitors, wires, waste clothes, wood branches, etc., need to be shredded and then carbonized; if the moisture exceeds 30%, it needs to be dried in advance.

Biomass carbonization

Metal recycling

PRINCIPLE STRUCTURE

Structure

The host part of the pyrolysis furnace is a horizontal cylinder, the diameter of the cylinder is 1000MM, and the length is 10M (can also be customized according to the needs of customers).

The middle part of the cylinder is the heating area. Continuous rotation avoids the disadvantage that the fire only burn the same area, greatly prolongs the service life of the machine, and at the same time greatly improves the output material’s uniformity and quality.

Working principle: This machine uses natural gas, diesel to preheat the cylinder of the host machine (the temperature is generally controlled at 500℃). After heating to a certain temperature, the material can be fed for carbonization or get roasted. During carbonization or roasting, the insufficient burning will generate the combusitble gas, which will be lead to bottom of the furnace to get burnt as fuel, and the natual gas’s pipe can be closed gradually. and finally the combustible gas in the carbonization process is self-sufficient.

PARAMETERS

Model ZY-TJ1000 ZY-TJ1200 ZY-TJ1500
Dimension 1000*10000mm 1200*11600mm 1200*11600mm
Power 32 Kw 45 Kw 55 Kw
Capacity (kg/h) 400-500 800-1000 1500

DELIVERY

Delivery

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Products Solar Panel Recycling Machine

Solar PV Panel Recycling Machine

The solar panel recycling machine (production line) can systematically recycle scrapped solar panels, including aluminum frame removal, glass removal, and precious metal recycling, so as to realize the recycling and reuse of resources.

RECYCLING TECHNOLOGY

The rest of the components in a PV solar panel consist of good quality glass, aluminium frames, polymers, silicon, copper and silver paste (used for the printed conductors on each cell), all of which (up to 95%), can in principle be successfully recycled.

Solar Panel Recycling Technology

DETAILED MACHINE

Solar Recycling Machine

Solar Recycling Machine

Solar Recycling Machine

PARAMETERS

Model ZY-SL300 ZY-SL500 ZY-SL1000
Capacity 300 Kg/H 500 Kg/H 1000 Kg/H
Power 102 Kw 134 Kw 194 Kw
Weight 15 Ton 20 Ton 30 Ton
Dimension (m) 20*5*5 25*6*5 30*6*5
Categories
Products Solar Panel Recycling Machine

Solar Panel Aluminum Frame Dismantling Machine

The solar photovoltaic panel aluminum frame dismantling machine is suitable for the dismantling and recycling of scrap solar panel aluminum frames of various sizes and types, which is simple, convenient, efficient and stable.

WORKFLOW

Aluminum frame removal process

Aluminum frame removal process

Aluminum frame removal process

Aluminum frame removal process

SOLAR PANEL ALUMINUM FRAME DISMANTLING MACHINE EFFECT

Solar Panel Aluminum Frame Dismantling Machine Effect

PARAMETERS

Model ZY-FR500
Design pressure 1-2T
Motor (KW) 5.5kw
Voltage 200v/60Hz
Oil pump 2*1
Hydraulic stroke length 150mm
Control method Fully automatic/manual operation
Design times 6-8times/min
Overall size 1.9mx1.7mx1.7m
Total Weight 1 T

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Solar Panels Glass Removing Equipment

Solar panel crushing and sorting equipment

Categories
Products Solar Panel Recycling Machine

Solar Panels Glass Removing Equipment

The solar photovoltaic panel glass dismantling machine equipment is a set of machines consisting of complete dismantling and recycling of the glass on the end-of-life solar panels. The equipment is equipped with corresponding dust removal facilities to avoid further dust pollution. After further glass dismantling, it will enter and exit the next stage of the crushing and sorting process.

APPLICATION RAW MATERIAL

Applicable to all kinds of end-of-life solar panels above the glass removal.

WORKFLOW

Solar panel glass removal process

Solar panel glass removal process

Solar panel glass removal process

Solar panel glass removal process

COMPARISON OF BEFORE AND AFTER DEMOLITION

COMPARISON OF BEFORE AND AFTER DEMOLITION

PARAMETERS

Power 26kw
Biggest input width 1250mm (customized)
Speed 70-90 pcs per hour
Capacity 1400-2000kg per hour
Glass removal ratio above 88%
Machine Dimension (4+2)*1.6*2.5m
Dimension (4000+2000)*2400*2500mm

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Solar panel aluminum frame removal machine

Solar panel crushing and sorting equipment