Your Professional Lead Extraction Supplier
Darnal Group China, founded in 2004, is a leading enterprise in the metallurgy equipment sector, specializing in the design, manufacturing, and installation of advanced equipment for precious metal smelting. As a cooperative partner of Central South University (CSU), we leverage cutting-edge technology to offer comprehensive solutions for metallurgy projects, including copper, zinc, lead, gold, silver, and more. With a team of experts in metallurgy, automation, and environmental protection, we ensure high-quality production from our state-of-the-art facility in Changsha.
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![Lead Pot]()
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![Lead Kettle]()
Lead KettleThe agitator is a metallurgy device that stirs melted lead or tin to form dross and remove impurities. -
![Liquid Lead Pump]()
Liquid Lead PumpThe molten metal pump, also known as a lead pump, tin pump, or zinc pump, is a metallurgy device used to continuously transport molten lead, tin, or zinc to designated locations for further -
![Recycled Lead Blast Furnace System]()
Recycled Lead Blast Furnace SystemRecycled lead, also known as secondary lead, refers to lead metal recovered from used products, such as spent lead batteries and other lead materials. This process plays a crucial role in sustainable
Why choose us
Expert Metallurgy Design
We offer comprehensive design services for metallurgy projects, providing tailored solutions to meet specific needs in smelting and refining of metals such as gold, silver, copper, and more.
Advanced Equipment Technology
Darnal specializes in high-quality equipment for metal smelting and refining, including vacuum metallurgy systems and traditional smelting furnaces, ensuring efficiency and high-purity metal extraction.
Sales Markets
Our products are sold to several countries including Japan, Russia, Turkey, and Thailand, demonstrating our ability to meet diverse client needs and expand our international reach.
Service Advantages
We provide full installation guidance, operation training, and ongoing maintenance to ensure the long-term performance and reliability of our equipment.
Recycled lead refers to lead that has been reclaimed from used products and processed for reuse. Unlike virgin lead, which is extracted from mined ore, recycled lead is sourced from scrap, such as batteries, pipes, or other lead-containing items. The recycling process involves collecting, cleaning, melting, and refining the lead to meet industry standards. This approach not only reduces the environmental impact of lead extraction but also offers a cost-effective alternative for manufacturers and end-users.
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S/N |
Item |
UOM |
Index |
Remarks |
|
|
Annual Working Days |
D |
300 |
|
|
|
Dust Emission Rate |
% |
8~12 |
|
|
|
Blast Furance Capacit |
T/d |
21 |
Including Auxiliary Materials |
|
|
Lead Recovery Rate |
% |
95 |
|
|
|
Desulfurization Rate |
% |
95 |
|
|
|
Dust Concentration in Flue Gas |
G/m3 |
3~6 |
|
Advantages of Recycled Lead Blast Furnace System
Energy Savings
Recycling lead uses only 25–30% of the energy required to mine and refine primary lead
01
Emission Reduction
Significantly lowers greenhouse gas emissions and air pollutants
02
Resource Conservation
Reduces dependence on finite ore reserves and minimizes mining impact
03
Cost Efficiency
Recycled lead is typically 20–40% cheaper than virgin material
04
Regulatory Compliance
Supports adherence to environmental standards like EPA and REACH
05
Pure Lead Ingots
Composed of up to 99.9% pure lead, these ingots are ideal for high-precision and safety-critical applications where contamination must be minimized.
Alloyed Lead Ingots
These are blends of lead with metals such as tin, antimony, and calcium to improve mechanical strength, durability, and electrochemical performance.
Lead-Selenium Ingots
These specialized ingots incorporate selenium to enhance performance in electronic and optical applications, particularly where oxidation resistance and energy absorption are critical.
Lead-Calcium Ingots
Infused with calcium, these ingots are engineered for maintenance-free lead-acid batteries, offering improved efficiency and longevity over traditional lead-antimony variants.
Applications of Recycled Lead Blast Furnace System
Automotive Industry
Recycled lead is predominantly used in manufacturing lead-acid batteries, which power vehicles. Using recycled lead reduces costs and environmental impact, helping automakers meet sustainability targets.
Construction & Infrastructure
Lead is used in roofing materials, pipes, and shielding. Recycled lead provides a cost-effective and eco-friendly alternative to virgin lead, especially for large-scale projects.
Electronics & Manufacturing
Lead is a component in solder and other electronic parts. Recycled lead ensures supply stability and compliance with environmental regulations.
Waste Management & Recycling
Recycling facilities process lead-containing waste, turning it into usable material, thus closing the loop and reducing landfill waste.
Collection of Scrap
Used lead products, primarily batteries, are gathered from various sources, including automotive repair shops, industrial facilities, and waste management companies.
Sorting & Cleaning
The collected scrap is sorted to remove non-lead components and contaminants. This step ensures purity and prepares the material for melting.
Melting & Refining
The cleaned scrap is melted in high-temperature furnaces. During this stage, impurities are removed, and the lead is refined to meet industry specifications.
Casting & Distribution
The refined lead is cast into ingots or other forms suitable for manufacturing. These are then distributed to end-users or manufacturers for production.
Reintegration into Supply Chain
The recycled lead enters the supply chain, used in manufacturing batteries, construction materials, or other lead-based products.
Process of Recycled Lead Blast Furnace System
Collection
Scrap lead materials—such as used batteries, cable sheathing, pipes, and construction components—are gathered from industrial, automotive, and electronic sources.
Sorting and Inspection
Materials are sorted by type and purity to separate lead from contaminants like plastic, rubber, or other metals.
Cleaning
The scrap is cleaned to remove dirt, oils, and non-metallic residues, ensuring a purer end product.
Smelting
The cleaned lead is melted in a furnace at temperatures exceeding 600°C (1,112°F). This high-heat process separates molten lead from slag and impurities, which are skimmed off.
Purification
Further refining may be conducted using chemical treatments or fluxing agents to remove residual contaminants such as antimony or tin.
Casting
The purified molten lead is poured into standardized molds to form ingots, which are then cooled, labeled, and prepared for resale or reuse.
Maintenance
Temperature Control
Avoid prolonged exposure to extreme temperatures. Excessive heat can accelerate oxidation or cause dimensional changes in alloyed forms, while freezing conditions may affect handling equipment and increase brittleness in certain alloys.
Regular Inspection
Conduct periodic visual checks for signs of corrosion, surface cracking, or contamination—especially if stored for extended periods. In manufacturing settings, inspect ingots before melting or casting to ensure consistent alloy composition and purity.
Cleaning and Decontamination
For battery manufacturing or precision casting, clean ingots to remove dust, oxides, or sulfates using mechanical brushing or approved chemical treatments. This ensures optimal conductivity and alloy homogeneity during remelting.
We're professional lead extraction manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to buy customized lead extraction made in China here from our factory.
Lead Kettle, lead extraction, Liquid Lead Pump
