High Voltage Electroseparator-DXJ Series High Voltage Electroseparator Equipment

Product Overview

DXJ series high voltage electric separator is an advanced mineral sorting equipment independently developed by our country, which is specially designed for the selection of high-value minerals. As an important equipment in the field of domestic mine beneficiation, this series of electric separator has excellent performance in the efficient recovery of minerals with difference in electrical conductivity, such as scheelite, cassiterite, zircon, rutile, gold and silver, etc., and its market share ranks the first place in the same kind of products steadily.

Core Advantages

1. Industry-leading sorting efficiency: the recovery rate of conductive minerals is 15-20% higher than that of traditional equipment.

2. Compound electric field design: both corona electric field and electrostatic field, high sorting precision.

3. Intelligent temperature control system: infrared heating + drum heating dual system, temperature control is accurate to ± 2 ℃.

4. Modular configuration: provide double drums to six drums of various specifications, processing capacity of 800-2000kg/h

5. Safety and reliability: over-current self-protection circuit + high-voltage discharge rod double protection

Working Principle

Separation process

1. Pre-treatment: minerals are heated to 150-250℃ in the hopper (30 minutes)

2. Charge giving: minerals enter the corona electric field to obtain negative charge

3. Minerals are separated:

   • Conductor minerals: rapid conduction charge → by centrifugal force → front receiving hopper

   • Non-conductor minerals: maintain charge → mirror adsorption → brush removal → rear receiving hopper

   • Semiconductor minerals: intermediate properties → middle hopper

Electric field system

• Corona electrode: Φ0.32mm nickel-chromium resistance wire, adjustable spacing

• Static electrode: Φ30-35mm stainless steel tube, angle adjustable

• Working voltage: up to 60kV (oil-immersed transformer)

Equipment structure

Mechanical system

Electrical system

Technical Parameters

Basic Parameters

Sorting index

• Applicable particle size: 0.053-0.833mm (20-280 mesh)

• Temperature control:

  • Ore heating: 150-250℃

  • Drum temperature: 50-60℃

• Pole distance adjustment: electrode-drum spacing adjustable range 30-80mm

Operation procedure

Start-up process

1. Preheating stage:

   • Turn on the hopper heating (30 minutes)

   • Start drum heating to 50-60℃

2. Voltage adjustment:

   • High-voltage power supply from zero gradually rise to the working voltage (≤ 60kV)

3. Ore feeding control:

   • Adjust the lower feeder so that the ore layer evenly covers 1/3 of the drum surface

Safety norms

• Must use the discharge rod to contact the electrode 2-3 seconds before maintenance

• It is strictly prohibited to open the door of sorting room during operation

• Discharge and cut off all power supply after stopping the machine.

Maintenance points

Routine Maintenance

Key components life

• Corona electrode: 6-8 months

• Wool felt brush: 3-4 months

• Drum lining: 2-3 years

DXJ type high-voltage electric separator provides efficient and reliable selection solution for high-value mineral selection through innovative composite electric field design and intelligent temperature control system. This equipment has become the key equipment in the field of processing strategic mineral resources in China, and its technical performance has reached the international advanced level.