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Efficient and environmentally friendly three-way catalyst direct current furnace equipment

  • Efficient and environmentally friendly three-way catalyst direct current furnace equipment
  • Efficient and environmentally friendly three-way catalyst direct current furnace equipment
Place of Origin Shaanxi, China
Brand Name Shaanxi Chengda
Certification ISO9001
Model Number Three-way catalyst DC furnace
Minimum Order Quantity 1set
Price The specifications and price are negotiable.
Packaging Details Discuss according to the specific requirements of Party A
Delivery Time 2 months
Payment Terms L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability Complete production supply chain, supply on time, and meet quality standards

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Product Details
Device Type Three-way Catalyst DC Furnace Country Of Origin Shaanxi, China
Core Component Shelf Life 1 Year Electrode Diameter Φ350mm
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Three Way Catalyst dc furnaces
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Product Description

Three-way catalyst DC furnace

This is a DC arc furnace specialized for processing three-way catalysts, primarily designed to recover precious metals and other valuable components from spent three-way catalysts.

Basic Principle

The DC arc furnace converts three-phase alternating current into single-phase direct current via thyristor rectification. An electric arc is generated between the top graphite electrode (cathode) and the bottom electrode (anode) across the three-way catalyst material, utilizing the high temperature from the arc to heat and melt the material for effective processing.

Structural Features

It typically consists of an arc furnace body, composed of a furnace shell and a furnace cover. The furnace shell is equipped with a bottom, lining, slag outlet, and discharge port. A first cooling water circulation assembly is arranged around the lining, consisting of multiple independent cooling water systems from top to bottom. The furnace cover is provided with multiple feed inlets, an exhaust pipe, and a second cooling water circulation assembly. The electrode rod assembly penetrates the middle of the furnace cover and can be adjusted in height via a lifting frame. A stirring assembly linked to the electrode rod is also installed at the furnace bottom to enhance uniform heating of the material.

Technical Advantages

  • Compared with AC arc furnaces, it features a more stable and concentrated electric arc, ensuring uniform temperature distribution in the furnace and excellent molten pool stirring. This reduces lining erosion and extends equipment service life.
  • It has minimal fluctuation in current and voltage, resulting in low impact on the power grid. Electrode consumption is reduced by approximately 50%, effectively lowering operating costs.
  • During three-way catalyst processing, the high-temperature arc efficiently decomposes complex compounds, facilitating better separation of precious metals from other components and improving recovery efficiency.

Application Scope

Widely used in precious metal recycling enterprises and environmental protection treatment companies, it specifically processes spent three-way catalysts. Through high-temperature smelting in the arc furnace, it recovers precious metals such as platinum, palladium, and rhodium, while enabling proper treatment of furnace slag for subsequent comprehensive utilization.




Equipment use: Mainly used for smelting raw materials automotive catalyst (80%) and petroleum catalyst slag (20%) treatment, the equipment adopts direct current mode, effective recovery of valuable metals.
Process mode: DC electric furnace, the process is simple, high efficiency.


Equipment Description - Technical features of DC furnace equipment:
1) DC electric arc furnace than AC furnace heat transfer efficiency is high, electrode consumption is much less than AC furnace, simple operation, convenient maintenance.
2) The temperature of the reaction zone of the molten pool is high, the temperature of the solution at the bottom of the furnace is uniform, the furnace eye is easy to open, and the iron is smooth.
3) The furnace bottom conductive structure is simple, reliable operation, convenient installation and maintenance.
4) The heat is concentrated, the crucible area of the melting pool is close to the bottom of the furnace, and the heat radiation of the solution slag line area is small, which has a good protection effect on the protection of resistant materials.
5) The DC electric furnace has a low flicker effect and noise, which is very beneficial to the power grid and the operator, and its flicker effect is only 50% to 70% of the AC electric furnace, and the noise during submerged arc operation is more than 20dB lower than that of the AC electric furnace.
6) The natural power factor of DC electric furnace is high, and the power factor can reach 0.90~0.96 without compensation.
7) The integrated rectifier power supply adopts a three-phase full-bridge rectifier device, and the AC power supply is rectified into a stable and reliable DC power supply. Heating mode of DC arc furnace in furnace. The rectifier device is cooled by independent closed cooling equipment, which is safe and reliable.
8) The electrode lifting control adopts PLC hydraulic proportional reversing valve mode + manual priority operation mode, and implements voltage and current double closed-loop control. The use of internationally renowned low-voltage electrical components (Siemens/Schneider), effectively ensure the reliability and advanced nature of the equipment.
9) Advanced computer operating system, real-time operation and operation management of operation process and operation parameters.


Efficient and environmentally friendly three-way catalyst direct current furnace equipment 0


The mechanical part consists of the following parts:
1.Furnace body and bottom temperature measuring device.
2.Smoke exhaust and sealing device.
3.Oven dumping device.
4.Furnace cover and observation device.
5.Electrode lifting device.
6.Bottom electrode device.
7.Short-net device.
8.Water cooling system.
9.Hydraulic system.

10.Blanking system.
11.Auxiliary device.








Tags:

dc furnace

electric arc furnace

metal smelter