Your Professional Zinc 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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![Zinc Powder Distillation Furnace]()
Zinc Powder Distillation Furnace6.13 Zinc Powder Distillation Furnace The zinc powder distillation furnace is a specialized metallurgical device engineered to purify zinc raw materials with a minimum zinc content of 98% (Zn -
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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.
The Zinc Powder Distillation Furnace efficiently produces high-quality zinc dust through a specialized distillation process. It features a melting distilling furnace, condenser, and rapid cooling system, ensuring precise separation and classification of zinc dust. The finest grades meet paint-grade standards with 98% Zn content, low impurities (Pb, Cd, Fe ≤0.1%), and consistent particle size (4-9 μm). Supported by services like field installation, spare parts supply, and project design, it ensures reliable performance for energy and mining industries.
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Sort |
Applicable standards |
Zn content |
Metal Zn |
Pb |
Cd |
Fe |
Acid Insoluble |
|
International standard Zn dust |
GB/T6890-2000 |
≥98 |
≥96.0 |
≤0.1 |
≤0.1 |
≤0.05 |
≤0.05 |
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Sort |
Specification |
Nominal particle Size (mesh) |
Average particle size (μm) |
Max size (μm) |
Residue On Sieve |
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|
+200 (mesh) |
+325 (mesh) |
+500 (mesh) |
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|
Super Fine |
Zn-600 |
-600 |
4~6 |
≤22 |
None |
Trace |
≤0.1% |
|
Zn-500 |
-500 |
5~7 |
≤30 |
None |
≤0.01% |
≤0.3% |
|
|
Zn-400 |
-400 |
6~8 |
≤38 |
None |
≤0.05% |
- |
|
|
Zn-325 |
-325 |
7~9 |
≤45 |
None |
≤0.01% |
- |
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Advantages of Zinc Powder Distillation Furnace
Highly adaptable to raw materials
It can process zinc concentrate, zinc oxide ore, zinc-containing waste (such as electroplating slag and used batteries), and even complex materials (such as lead-zinc mixed ore).
Low energy consumption and low carbonization
Modern distillation furnaces utilize waste heat recovery technology (such as flue gas preheating air), reducing overall energy consumption by 20%-30% compared to traditional equipment.
Controllable particle size and high activity
Rapid quenching (such as spray condensation) can produce zinc powder with fine particle size (1-10μm) and large specific surface area, resulting in high activity and a fast reaction rate.
Low impurity content
The distillation process uses physical separation (volatilization-condensation) rather than chemical precipitation, avoiding the acid and alkali residue problems of wet processes, resulting in extremely low impurity content (such as chlorine and sulfur).
Traditional Zinc Distillation Furnaces
Large, stationary systems used primarily in older or large-scale industrial setups. These furnaces operate in batch mode, requiring extended heating cycles to vaporize and condense zinc from raw ore.
Modern Zinc Distillation Furnaces
Advanced systems designed for continuous processing, improved energy efficiency, and reduced environmental impact. These furnaces incorporate closed-loop systems and better heat recovery mechanisms.
Retort Distillation Furnaces
These sealed, horizontal or inclined chamber furnaces heat zinc ore in a controlled, oxygen-free environment. Zinc vapor is produced and then condensed into liquid metal, which collects in designated receivers. The closed design minimizes heat loss and environmental contamination.
Vertical Zinc Distillation Furnaces
In this design, zinc ore is loaded in stacked layers within a vertical chamber. Hot gases rise from the bottom, transferring heat efficiently through the ore bed. This counter-current heat exchange maximizes energy utilization and accelerates the distillation process.
Applications of Zinc Powder Distillation Furnace
Galvanizing Industries
Zinc distillation furnaces are a cornerstone of the galvanizing industry, where they are used to produce molten zinc for the hot-dip galvanization process. This process involves immersing steel or iron components into a bath of molten zinc to form a protective coating that prevents corrosion and significantly extends the lifespan of metal structures.
Non-Ferrous Metallurgy
In the non-ferrous metallurgy sector, zinc distillation furnaces are essential for refining raw zinc ores and concentrates. These furnaces utilize distillation techniques to separate zinc from impurities such as lead, cadmium, and other heavy metals, resulting in high-purity zinc suitable for industrial use.
Die Casting
Zinc distillation furnaces are widely employed in the die casting industry to produce high-quality molten zinc for precision casting operations. The controlled distillation process ensures consistent metal purity, which is critical for achieving tight tolerances, excellent surface finish, and structural integrity in cast components.
Alloy Production & Material Science
Beyond primary applications, zinc distillation furnaces support advanced alloy development and material research. The ability to precisely control zinc composition and purity enables innovation in lightweight materials, battery technologies, and specialty coatings.
Safety features of Zinc Powder Distillation Furnace
Real-Time Monitoring Systems
Continuous tracking of temperature, pressure, and vapor concentration using sensors and digital control panels to detect anomalies early.
01
Pressure Relief Valves
Automatically release excess pressure in the system to prevent vessel rupture or explosion during thermal expansion or blockages.
02
Gas Leak Detection
Sensors monitor for leaks of combustible or toxic gases (e.g., carbon monoxide, hydrogen) and trigger alarms or ventilation systems.
03
Emergency Shutdown (ESD) System
Allows immediate power cut-off and isolation of fuel supply in case of overheating, fire, or system malfunction.
04
Fire Suppression & Ventilation
Integrated fire suppression systems and exhaust hoods help manage thermal runaway and remove harmful fumes from the workspace.
05
Maintenance of Zinc Powder Distillation Furnace
Weekly Inspections
Examine the power supply cables for signs of wear, fraying, or overheating (e.g., discoloration or burnt insulation). Faulty wiring poses serious fire and electrical hazards. Simultaneously, inspect the cooling water pump for unusual noises, vibrations, or leaks—early detection prevents catastrophic failure and maintains condensation efficiency.
Monthly Maintenance
Conduct a thorough evaluation of the cooling water system. Check for pipe leaks, verify water flow rate with a flow meter, and test water quality for pH balance and mineral content to prevent scaling. Additionally, inspect the vacuum pump’s oil level and condition; cloudy or degraded oil should be replaced immediately to maintain pumping efficiency and prevent internal damage.
Quarterly Overhaul
Perform a comprehensive system review every three months. Inspect all electrical components—including circuit breakers, contactors, and terminal blocks—for corrosion or loose connections. Clean the distillation tank and associated pipelines to remove zinc oxide buildup, which can insulate surfaces and reduce heat transfer. Calibrate temperature and pressure sensors to ensure accurate readings. Finally, conduct safety and operational training for furnace operators to reinforce best practices and emergency procedures.
We're professional zinc extraction manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to buy customized zinc extraction made in China here from our factory.
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