Scrap Metal recycling production line

Scrap metal recycling production line: a must for resource recycling

  

Today, with resources becoming increasingly scarce and environmental awareness constantly improving, the importance of scrap metal recycling is becoming more and more prominent. As the core equipment to achieve this goal, the scrap metal recycling production line is playing a key role. It can convert waste metal into reusable resources, reduce dependence on primary mineral resources, and reduce energy consumption and environmental pollution. ​

 

  

 

The following is an introduction to our factory's metal recycling production line:

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1. Principle

The scrap metal recycling production line uses a variety of physical and mechanical methods to process different types of scrap metals. First, the large pieces of scrap metal are initially crushed by a shredder to reduce their size for subsequent processing. Then, the crusher further refines the material, using high-speed rotating knives or hammers and other components to forcefully strike and shear the scrap metal into smaller particles or fragments. During the crushing process, some coatings and impurities on the surface of the scrap metal will be removed. Subsequently, the crushed material is transported to the magnetic separator through a vibrating discharging machine, and the ferromagnetic material is separated from other non-magnetic materials by magnetic force to achieve preliminary metal classification. For non-ferrous metals, eddy current separators and other equipment can be used to further separate and purify the metals according to their characteristics in an alternating magnetic field. ​

II. Equipment composition​
1. Shredder: As the front-end equipment of the production line, it is used to process large and irregularly shaped scrap metals. It has a strong shear force and can easily tear scrap car shells, large metal structural parts, etc. into smaller pieces, reducing the pressure on the subsequent crushing process. For example, a double-shaft shredder can achieve efficient shredding for scrap metals of different materials by adjusting the tool gap and rotation speed. ​
2. Crusher: It is one of the core equipment of the production line and is responsible for further refining the shredded scrap metal. Common ones include hammer crushers and double-roll crushers. Hammer crushers use high-speed rotating hammers to hit scrap metals to break them, which is suitable for scrap metals with higher hardness; double-roll crushers use two relatively rotating rollers to squeeze and grind the materials, which can produce products with more uniform particle size, and are often used to process softer or scrap metals with higher particle size requirements.​

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3. Magnetic separator: Magnetic field is used to separate ferromagnetic metal from mixed materials. When the material passes through the magnetic field area of the magnetic separator, the ferromagnetic metal will be adsorbed on the magnetic separation drum, and will be brought to the designated position as the drum rotates, separated from other materials, and can efficiently recover iron, steel and other materials in scrap metal. ​
4. Eddy current separator: Mainly used to separate non-ferrous metals, such as copper and aluminum. It generates an alternating magnetic field to generate an induced current in the magnetic field for non-ferrous metals, which are then separated from the mixed materials by the Lorentz force, which is of great significance for improving the recovery rate and purity of non-ferrous metals. ​
5. Conveying equipment: Including chain conveyors, belt conveyors, etc., responsible for conveying materials between processes to ensure the continuity and smoothness of the production line. Chain conveyors are suitable for conveying heavier and blocky materials; belt conveyors are often used to convey granular, powdery or lighter materials, and are reasonably configured according to different production needs and material characteristics.​
6. Screening equipment: such as vibrating screen, can screen the crushed materials, return the materials that do not meet the particle size requirements to the crusher for re-crushing, ensure that the particle size of the final product meets the standard, and improve the product quality. ​

III. Applicable materials ​
The application scope of the scrap metal recycling production line is extremely wide. It covers scrap car bodies (excluding engines, gearboxes, tires, etc.), which contain a large amount of recyclable metals such as steel and aluminum alloys; tinplate, such as color steel tiles, iron barrels, cans, etc., these thin metal products can be efficiently recycled through the production line; home appliances (excluding motors, compressors, shafts, etc.), which contain a variety of non-ferrous metals and ferrous metals; bicycles, truck fences and similar household waste; cans, such as paint barrels, oil barrels, chemical barrels, etc.; other scrap steel, such as blocks with a density of less than 0.6, steel plates with a thickness of ≤5mm, steel sections, steel structures, etc. Whether it is scrap metal scraps generated by industrial production or scrap metal items in daily life, they can be properly handled and recycled on this production line. ​,

IV. Advantages​
1. High recovery rate: Through advanced crushing, sorting technology and equipment combination, various useful components in scrap metal can be recovered to the maximum extent, improving resource utilization. Taking the recycling of scrapped cars as an example, the steel, aluminum, copper and other metals can be efficiently separated and recycled, and the recovery rate can reach more than 90%. ​

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2. High degree of automation: The production line is equipped with advanced PLC electrical control and operating system. The operator can monitor and adjust the entire production process through the console, realize the automatic start and stop of the equipment, fault alarm and other functions, greatly reduce manual intervention, improve production efficiency and reduce labor intensity. ​
3. Safety and environmental protection: Safety factors are fully considered in the design and operation process, and multiple protective devices are set up, such as emergency braking system, guardrails, etc., to ensure the personal safety of operators. At the same time, it is equipped with a complete dust removal system, which consists of a cyclone dust collector and a bag dust collector. Dust collection ports are installed at each dust-generating point (such as the inlet and outlet of the shredder, the inlet and outlet of the crusher, the separation port of the magnetic separator, etc.) to effectively collect and treat the dust generated during the production process, reduce pollution to the environment, and meet national environmental protection standards. ​
4. Strong adaptability: According to the characteristics of different scrap metal materials and production needs, the equipment parameters and process flow can be flexibly adjusted to achieve the processing of various types and specifications of scrap metals. Whether it is a small scrap recycling site or a large steel plant or metal smelting enterprise, it can find a production line configuration solution that suits its needs. ​
5. Improve product quality: Not only can scrap metal be recycled, but it can also be purified and cleaned to a certain extent during the processing process, remove impurities and oil stains on the surface of the scrap metal, improve the purity and quality of the recycled metal, and provide high-quality raw materials for subsequent reprocessing and utilization. The treated scrap metal can be directly used to produce high-quality metal products, reducing the cost and energy consumption of subsequent processes such as refining.​

V. Application fields​
1. Scrap recycling companies: Scrap recycling companies collect a large amount of scrap metal every day, and use the scrap metal recycling production line for centralized processing. They classify and recycle different types of scrap metal, improve the recycling value, and increase the economic benefits of the enterprise. At the same time, the treatment method that meets environmental protection requirements also helps the enterprise establish a good social image. ​
2. Steel mills: Steel mills can use this production line to process scrap steel and other raw materials. After crushing and sorting, the recycled scrap steel is put back into the steelmaking furnace as a raw material supplement for steelmaking, reducing dependence on primary resources such as iron ore, saving production costs, and reducing energy consumption and carbon emissions in the steel production process. ​
3. Metal smelting enterprises: For professional metal smelting enterprises, scrap metal recycling production lines are an important way to obtain high-quality raw materials. By recycling and processing various scrap metals, high-purity non-ferrous metals and rare metals are extracted to meet the needs of enterprises to produce high-end metal products and enhance the competitiveness of enterprises in the market. ​

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4. Electronic waste treatment enterprises: With the rapid development of the electronics industry, the amount of electronic waste is increasing. These wastes contain a large amount of metals, such as copper, gold, silver, palladium, etc. Electronic waste treatment companies can use scrap metal recycling production lines to effectively recycle the metals in them, realize the recycling of resources, and reduce the harm of electronic waste to the environment. ​

The scrap metal recycling production line plays an irreplaceable role in promoting resource recycling and promoting economic sustainable development with its efficient resource recycling capabilities, environmentally friendly treatment methods and wide application fields. It is an important equipment support for achieving green development and building a resource-saving and environmentally friendly society, and provides an effective solution to the problems of resource shortage and environmental pollution. Whether from the current economic benefits or the long-term social and environmental benefits, investing in and promoting scrap metal recycling production lines has important practical significance and broad development prospects.