Copper Chip Moisture Drying Tunnel Oven

The Copper Chip Moisture Drying Tunnel Oven is an industrial thermal processing equipment that uses a tunnel-type structure for continuous heating. It is specially designed for drying surface moisture and cutting oil attached to copper chips (copper shavings and copper scrap particles).Through continuous conveying and controlled heating, the equipment efficiently removes water and oil from copper chips, improving storage, transportation, and recycling efficiency.

Core Applications

Waste Copper Recycling and Reuse

Used for dehydration and oil removal of copper chips before melting.

Advantages include:

Preventing explosions caused by wet copper chips entering the melting furnace

Reducing smoke and harmful gas emissions during melting

Improving melting efficiency and metal recovery rate

Post-Processing of Metal Machining Waste

Used for centralized drying of copper chips generated from:

CNC machining

Lathe processing

Milling operations

Other metal cutting processes

The dried copper chips are easier to:

Store

Compress and package

Transport

Recycle

Applicable Manufacturing and Safety Standards

JB/T 10294

Industrial Machinery — Electrical Heating Equipment for Industrial Furnaces

GB 5226.1

Safety of Machinery — Electrical Equipment of Machines, Part 1: General Technical Requirements

GB/T 10067.1

Basic Technical Requirements for Electric Heating Equipment

Environmental Protection Standards

The equipment is generally equipped with:

Exhaust gas collection systems

Oil mist purification systems

Secondary combustion or treatment devices

to meet local exhaust emission requirements.

Equipment Features

Continuous Production Operation

Uses:

Stainless steel mesh belts

Chain plate conveyors

Copper chips are continuously fed from one end and automatically discharged from the other end, enabling efficient continuous production.

Efficient Oil and Moisture Removal

A specially designed air duct system allows hot air to penetrate the material layer effectively, quickly removing:

Surface moisture

Cutting oil

Oil-water mixtures attached between copper chips

Explosion-Proof Safety Design

The equipment is equipped with:

Automatic moisture exhaust systems

Pressure relief/explosion-proof openings

to prevent safety risks caused by excessive accumulation of oil vapor concentration.

Energy Saving and Precise Temperature Control

Adopts:

Multi-zone independent temperature control

PID intelligent regulation

High-density insulation materials

to reduce heat loss and improve energy efficiency.

FAQ

Q1: What is the typical drying temperature for copper chips?

A: The operating temperature is generally set between 150°C and 300°C.

Moisture evaporation mainly occurs at 100°C–150°C

If copper chips contain cutting oil, higher temperatures of 200°C–300°C may be required for oil vaporization and drying

The actual temperature depends on the oil content, moisture level, and production requirements.

Q2: How does the equipment handle oil smoke generated during drying?

A: The top of the drying chamber is equipped with an exhaust fan system.

The extracted oil vapor and moisture are sent to subsequent purification equipment, such as:

Activated carbon adsorption systems

UV photolysis purification systems

Spray towers

For large-scale industrial applications, high-temperature secondary combustion systems are also commonly used to directly oxidize and remove oil mist.

Q3: What is the difference between mesh belt dryers and drum-type drying equipment?

A:

Mesh Belt Tunnel Oven

Advantages:

Materials are transported in a relatively stable condition

Copper chips are less likely to deform or tangle

Less dust generation

Drum-Type Dryer

Advantages:

Continuous tumbling improves heating uniformity

Suitable for certain bulk materials

However, drum drying may generate more copper dust due to constant rolling. The selection depends on the shape, size, and processing characteristics of the copper chips.

Q4: How does the equipment prevent small copper chips from blocking the conveyor system?

A: The equipment usually adopts:

High-density stainless steel plate chain conveyors

Precision side guards on both sides of the mesh belt

These designs prevent small copper chips from falling into:

Conveyor chains

Bottom guide rails

Transmission components

ensuring stable long-term operation.

Q5: Can dried copper chips be directly sent to the melting furnace?

A: Yes.

After drying, the moisture content of copper chips can usually be reduced to below 0.5%.

This helps:

Eliminate safety hazards during melting

Improve melting efficiency

Reduce metal oxidation loss

Increase copper recovery rate

Therefore, dried copper chips can be directly used as high-quality recycled metal raw materials.