Powder Drying Tunnel Oven (Far Infrared Tunnel Oven)

The Powder Drying Tunnel Oven (Far Infrared Tunnel Oven) is an industrial thermal processing system that uses far infrared radiation combined with hot air circulation to achieve continuous heating, drying, and curing of powder materials.Its core features include high energy efficiency, uniform temperature distribution, and continuous automated production, making it suitable for various industrial powder processing applications requiring stable and efficient thermal treatment.

Application Fields

1. Powder Materials Industry

Used for drying and binder removal of:

Chemical powders

Nano powders

Ceramic powders

to improve material stability and processing performance.

2. Coating Industry

Used for leveling and curing of powder coatings after surface spraying on:

Metal hardware products

Plastic components

Industrial parts

The process improves coating adhesion, surface smoothness, and durability.

3. Electronics and New Energy Industry

Used for drying and heat treatment of:

Electronic components

Lithium battery electrode sheets

Battery material powders

to ensure stable product performance.

Applicable Standards and Regulations

Electrical Safety Standards

The equipment complies with industrial machinery electrical safety requirements, including:

GB 5226.1 — Electrical Safety of Machinery — Electrical Equipment of Machines — Part 1: General Requirements

IEC 60204-1 — Safety of Machinery — Electrical Equipment of Machines

Drying and Thermal Equipment Standards

Complies with relevant industrial electric heating furnace and tunnel oven technical requirements, such as:

JB/T 5521 — relevant industry standards for industrial electric ovens and heating equipment

Environmental Protection Requirements

The equipment can be equipped with:

VOCs exhaust collection interfaces

Waste gas treatment connection systems

to meet industrial environmental protection and emission requirements.

Main Features

1. Rapid Heating Performance

The equipment can achieve cold-start temperature rise within approximately 5–15 minutes.

Far infrared radiation directly penetrates and heats both the surface and internal structure of materials, improving drying efficiency.

2. High Efficiency and Energy Saving

The thermal efficiency can reach approximately 60%–80%.

Compared with traditional hot air circulation ovens, far infrared tunnel ovens can reduce energy consumption by approximately 20%–50%, depending on the material and process conditions.

3. Precise Temperature Control

The system adopts:

PID microcomputer control

Multi-section independent temperature control

The temperature difference within the effective heating zone can be controlled within ±2°C, ensuring stable drying and curing quality.

4. Continuous Automated Production

The equipment is equipped with:

Mesh belt conveyor systems

Chain conveyor systems

and can be seamlessly integrated with upstream and downstream automated production lines for continuous mass production.

FAQ

Q1: What is the heating principle of a far infrared tunnel oven?

A:The equipment uses far infrared ceramic heating plates or black crystal infrared tubes to generate infrared radiation with specific wavelengths. The infrared energy directly irradiates and heats the material through radiation heating.

At the same time, an internal hot air circulation system is used to balance the furnace temperature and improve overall heating uniformity.

Q2: Is it suitable for drying powder materials with high moisture content?

A:Yes, but for high-moisture powders, the equipment should be equipped with:

High-capacity moisture exhaust fans

Proper fresh air supply and exhaust structures

These systems quickly remove evaporated moisture and prevent excessive humidity inside the furnace from reducing drying efficiency.

Q3: How can uneven temperature distribution inside the furnace be adjusted?

A:The following methods can be used:

Check and optimize PID temperature control parameters

Adjust internal airflow guide plates

Inspect the arrangement, aging, or damage of far infrared heating elements

These adjustments help restore uniform heat distribution inside the tunnel oven.

Q4: What is the approximate energy consumption during operation?

A:Energy consumption depends on:

Furnace length

Effective heating area

Set temperature

Material processing requirements

Compared with conventional resistance heating furnaces, far infrared radiation heating can generally save approximately 20%–30% electrical energy under suitable operating conditions.

Q5: What maintenance is required during daily operation?

A:Routine maintenance includes:

Regularly cleaning material residues from the conveyor belt

Checking dust accumulation on far infrared heating tubes

Calibrating temperature control thermocouples

Inspecting lubrication conditions of transmission bearings

Regular maintenance ensures stable operation, accurate temperature control, and longer equipment service life.

The Powder Drying Tunnel Oven (Far Infrared Tunnel Oven) provides an efficient and precise continuous thermal processing solution for powder material manufacturers. With advantages including rapid heating, energy-saving operation, accurate temperature control, and automated production compatibility, it is widely used in chemical materials, coatings, ceramics, electronics, and new energy industries.