Engineered supply of complete pyrometallurgy and hydrometallurgy process lines by Hunan CHMM Metallurgy for copper, lead, zinc, and tin smelting, refining, and electrowinning. Delivery of tilting furnaces, vacuum distillation units, polymer concrete cells, and high-performance refractory materials.
CHMM Metallurgical Equipment & Refractory Lines
Advanced process plants for copper scrap recycling, vacuum thermal separation, continuous metal electrowinning, and engineered high-temperature furnace lining materials.
CHMM Tilting Smelting & Refining Furnaces
Delivering CHMM Tilting Furnaces engineered for high-capacity recycling of secondary copper scrap, wire chops, blister copper, and lead-bearing feedstocks.
The cylindrical steel shell rests upon precision machined support rollers driven by dual heavy-duty synchronized hydraulic tilting cylinders, facilitating accurate metal casting and slag decanting through dedicated tapholes.
The integrated combustion package features automated multi-fuel proportional burners and high-temperature air recuperation up to 450°C, maximizing thermal efficiency to 75%. Bath capacities range from 20 to 150 metric tons per heat, yielding up to 200 t/d anode copper.
Furnaces include pneumatically clamped charging doors, oxygen injection lances for rapid oxidation/reduction cycles, and thermal oxidizer chambers ensuring complete environmental compliance.
CHMM Metal Vacuum Distillation Furnaces
Providing engineered procurement of CHMM Metal Vacuum Distillation Furnaces designed for thermal separation and refining of low-boiling-point nonferrous metals without chemical reagents.
Engineered specifically for lead-tin (Pb-Sn) alloy continuous separation, refining crude tin to 99.99% Sn grade, zinc recovery from silver-zinc crusts, and high-purity cadmium distillation.
The multi-tray high-density graphite distillation tower operates inside a stainless steel vacuum chamber at 5–15 Pa residual pressure and thermal zones up to 1200°C. By leveraging differences in elemental vapor pressures, volatile species evaporate rapidly and condense as molten pure metals.
The process achieves tin recovery rates over 98.5%, generates zero sulfur emissions, and drastically shortens refining loops.
CHMM Anode Plates for Metal Electrowinning
Supplying cold-rolled lead alloy and titanium anode plates by CHMM for electrolytic refining and electrowinning of copper, zinc, nickel, and manganese. For copper electrowinning, we deliver Pb-Sn-Ca (lead-tin-calcium) rolled anode plates manufactured via precision cold deformation.
The resulting dense, elongated grain structure eliminates cast voids, resists intergranular grain boundary corrosion, and minimizes lead contamination in cathode copper.
Zinc refineries utilize Pb-Ag anodes with uniform silver distribution, while aggressive halide electrolytes utilize dimensionally stable titanium anodes (DSA) coated with IrO2-Ta2O5.
The solid copper hanger bar is completely clad in lead to prevent corrosive acid-mist ingress, ensuring stable conductivity over an 18 to 24 month operating life.
CHMM Permanent Stainless Steel Cathode Plates
Delivering genuine CHMM permanent stainless steel cathode plates fabricated from premium AISI 316L for copper electrorefining and high-purity aluminum alloys for zinc electrowinning.
The 3.0 to 3.25 mm thick stainless blade receives a 2B mechanical finish with controlled surface roughness Ra 0.3–0.5 µm, ensuring optimal copper deposition adherence during growth while allowing smooth automated stripping without surface gouging.
The solid electrolytic copper hanger bar is joined to the blade via automated double-sided laser welding, guaranteeing low electrical contact resistance and superior mechanical straightness.
Vertical edges are fitted with chemically inert polypropylene edge strips mechanically locked and thermo-welded to prevent wrap-around copper deposition.
CHMM Polymer Concrete Electrolytic Cells
Supplying CHMM monolithic polymer concrete electrolytic refining and electrowinning cells engineered for copper, zinc, nickel, and lead tankhouses.
Manufactured by casting high-purity vinylester resin and graded silica aggregates reinforced with internal three-dimensional fiberglass rebar (FRP) cages. Unlike conventional lined reinforced concrete tanks, CHMM cells contain zero metallic reinforcement and require no secondary PVC or lead liners.
The non-conductive monolithic structure entirely prevents stray earth leakage currents, increasing current efficiency to 98%.
The vinylester matrix exhibits total chemical resistance to hot sulfuric acid electrolytes containing chloride ions up to 80°C, offering a 20+ year maintenance-free operating lifespan without structural cracking.
CHMM Refractory Castables & Ramming Mixes (C-1600II, C-2900, SiC 5#)
Supplying certified CHMM monolithic refractory formulations for lining cylindrical barrels, hearths, banks, and crowns of smelting furnaces.
The range includes ultra-high-alumina corundum castable C-1600II rated for service temperatures up to 1750°C with Al2O3 content exceeding 90%, providing extreme resistance to molten copper wash and slag erosion.
Backing thermal insulation layers are formed with lightweight castable C-2900, effectively reducing shell temperatures and heat losses.
Hearth working surfaces are installed using silicon carbide ramming mass 5# (SiC ramming mix), which sinters under operating temperatures into an impervious, thermal-shock-resistant monolithic layer. Materials are packaged in weatherproof bags on palletized export units.
CHMM Silicon Carbide Refractory Bricks
Delivering genuine CHMM silicon carbide (SiC) shaped refractory bricks for lining tilting furnaces, rotary smelters, and nonferrous transfer vessels.
The precision-molded portfolio comprises horizontal wedge bricks (3-1, 3, 1, 1-1, 4), straight bricks (1, 2), vertical wedge bricks (1), and sector arch bricks (1, 2, 3, 4) engineered for building tight-fitting cylindrical shells and sprung roofs.
Manufactured via high-tonnage hydraulic pressing followed by high-temperature sintering, these bricks exhibit thermal conductivity up to 16 W/(m·K), low thermal expansion, and non-wetting characteristics against liquid copper and lead.
Shipments include companion SiC refractory mortar 4# and standard bonding clay for joint sealing.
CHMM Furnace Spares, Burner Blocks & Insulation
Providing dedicated fluid-end spares, burner components, and multi-layer thermal insulation systems for CHMM tilting smelting furnaces.
The package includes heavy burner blocks complete with centering collar rings, flame-deflector bricks protecting burner port throats, calibrated pouring cups/nozzles, and copper outlet taphole tubes.
Multi-layer shell insulation includes horizontal wedge and straight clay insulating bricks, together with high-temperature ceramic fiber and aluminosilicate insulation boards rated up to 1260°C.
All components are cross-checked against furnace engineering layouts to ensure perfect fit-up and gas-tight sealing during rebuilds.
Specifying optimal CHMM furnace and electrowinning configurations requires detailed feedstock parameters: metal assay (Cu, Pb, Sn, Zn, Bi), scrap morphology, target plant annual capacity, available fuel or electrical infrastructure, and environmental emission limits.
Our metallurgists calculate bath geometry, burner firing rates, flue gas volume, and tankhouse power distribution to deliver energy-efficient, robust smelter and refinery layouts.
Refractory Linings, Electrodes & Furnace Spare Parts
Sustained performance in high-temperature nonferrous smelting requires engineered refractory maintenance.
We supply genuine CHMM refractory materials including silicon carbide ramming mass 5#, corundum castable C-1600II, thermal insulation castable C-2900, precision horizontal wedge and arch SiC bricks, burner blocks with rings, and taphole tubes.
For tankhouses, we deliver cold-rolled Pb-Sn-Ca anodes, mirror-finished 316L cathodes, and FRP polymer concrete cell accessories.
International Contract & Delivery Terms
Delivery of CHMM process plants, furnaces, and refractory consignments is executed under formal international sales agreements directly from Chinese manufacturing facilities. Cargoes are packed in seaworthy containers and moisture-barrier wooden pallets.
Commercial terms, lead times, and shipping schedules are quoted against verified project specifications.
