Function of the Batch-Type Pyrolysis Furnace Door

Function of the Batch-Type Pyrolysis Furnace Door

The furnace door of a batch-type pyrolysis furnace is a core component of the equipment. Its primary role is to maintain stable reaction conditions, ensure operational safety, and accommodate the cyclic "loading—pyrolysis—unloading" process of batch-type operations. The key functions are as follows:

1. Sealing and Oxygen Control

The furnace door features a high-temperature resistant sealing structure. When closed, it ensures complete airtightness of the furnace body, preventing outside air from entering and maintaining an oxygen-free/low-oxygen environment inside. This avoids the formation of toxic substances like dioxins during pyrolysis.

It also prevents the leakage of high-temperature pyrolysis gas from the furnace, ensuring production safety.

2. Adaptation to Batch Operations

Loading and Unloading Channel: When open, the furnace door serves as the sole passage for batch loading of raw materials such as rubber and plastic, and for discharging carbon black residue after pyrolysis. This meets the periodic material turnover requirements of batch-type processes.

Access for Decoking and Maintenance: The inner wall of the furnace is prone to coking during pyrolysis. The furnace door also acts as an entry point for personnel or tools during regular decoking and equipment maintenance.

3. Heat Insulation and Safety Protection

The furnace door uses a multi-layer insulation structure, which effectively blocks the conduction of 300~500℃ high temperature from the furnace interior to the exterior. This prevents excessive external temperatures that could pose safety risks, while also reducing heat loss and improving thermal efficiency.

Some furnace doors are equipped with safety interlock devices, which prevent opening when the furnace is under pressure or at high temperature, avoiding accidental scalding or gas leakage.