The Aerogel Felt Baking Tunnel Oven (550°C) is a specialized industrial continuous heating system designed for the high-temperature processing of aerogel insulation mats/felts, including continuous cross-linking, modification, aging, solvent evaporation, and high-temperature drying during the manufacturing process.The equipment typically adopts a conveyor belt or mesh chain conveying system and can achieve a maximum operating temperature of 550°C. It is widely used in large-scale continuous production lines for advanced thermal insulation materials.

Core Applications

1. Deep Solvent Evaporation

Used before or after the supercritical drying stage of aerogel production to efficiently remove residual alcohol or organic solvents trapped inside the porous structure.

2. Surface Hydrophobic Modification

At controlled temperatures of 500°C–550°C, the equipment promotes deep thermal reactions between modifying agents and silica sources, ensuring that aerogel felt achieves excellent:

Water resistance

Hydrophobic performance

3. Thermal Stability and Aging Treatment

Through high-temperature curing and heat treatment, internal stress between the substrate (such as glass fiber and ceramic fiber) and aerogel structure is eliminated, improving mechanical stability and long-term performance.

4. Continuous Mass Production

Integrated with aerogel felt production lines to achieve seamless continuous processing from:

Coating

Impregnation

Baking and thermal treatment

Applicable Equipment and Industry Standards

GB/T 34336-2017

Nano-porous Aerogel Composite Thermal Insulation Products

The baking and thermal treatment performance must meet the requirements for:

Thermal conductivity

Hydrophobic rate

Thermal insulation performance

of aerogel insulation products.

GB 5226.1-2019

Electrical Safety of Machinery — Electrical Equipment of Machines

Regulates:

Electrical control systems

High-temperature safety protection requirements

GB/T 30839.1-2014

Energy Classification of Industrial Electric Heating Equipment

Provides guidance for:

Thermal insulation performance

Energy efficiency evaluation

Heat loss control during 550°C high-temperature operation

Explosion-Proof Safety Standards

Such as the GB 3836 series standards

Due to the presence of flammable organic solvent evaporation during baking, the equipment must meet strict explosion-proof and exhaust ventilation requirements.

Core Features

1. Extreme Thermal Insulation Technology

The furnace body adopts specially designed multi-layer high-temperature insulation materials between the outer shell and the 550°C heating chamber, typically including:

Aerogel insulation materials

High-alumina fiber materials

This effectively minimizes heat loss and improves energy efficiency.

2. Precise Temperature Control and Uniform Heating

The equipment adopts:

Multi-zone independent temperature control

Microcomputer PID control

SSR solid-state relay control

High-performance high-temperature long-shaft circulation fans

The forced hot air circulation system ensures that the temperature difference inside the furnace is controlled within ±3°C.

3. Explosion-Proof Design and VOC Exhaust Treatment

The equipment is equipped with:

Independent organic exhaust gas ventilation systems

Solvent concentration monitoring

Alarm linkage systems

These systems prevent combustible gases such as alcohol vapor from accumulating and causing explosion risks during high-temperature processing.

4. High-Temperature Resistant Conveying System

The conveying components, including:

Conveyor chains

Mesh chains

Rollers

are made of high-temperature-resistant stainless steel materials such as:

SUS310S

SUS316L

to ensure long-term stable operation without deformation under continuous 550°C high-temperature conditions.

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