Trial Date: September 28, 2026

Testing Site: Guoxin Heavy Machinery Assembly Workshop

Equipment Tested: Horizontal Biochar Carbonization Furnace

Raw Material: Raw wood sticks, tree branches, and timber offcuts

Project Overview & Trial Objective

On September 28, 2026, our engineering team conducted a comprehensive performance trial on the Horizontal Carbonization Furnace at our main manufacturing workshop. The primary objective was to evaluate the thermal efficiency, air-sealing performance, and final charcoal density when processing raw wood sticks and thick tree branches under simulated field conditions.

This case study documents the complete carbonization lifecycle—from material loading and auxiliary ignition to cooling and final charcoal quality assessment.

Trial Specifications & Equipment Setup

Step-by-Step Trial Workflow

1. Raw Material Stacking & Chamber Sealing

The wood sticks and branches were manually stacked into the horizontal furnace chamber. The horizontal barrel design allows straight timber and long branches to be loaded directly without complex pre-shredding, significantly reducing labor and preparation costs. Once full, the heavy-duty insulated door was sealed using multi-point mechanical clamps to ensure an absolute anaerobic (oxygen-restricted) environment.

2. Ignition & Pyrolysis Control

An external Liquefied Petroleum Gas (LPG) system was connected to the burner port below the furnace. The heat rapidly elevated the internal temperature past 300°C, initiating thermal decomposition (pyrolysis). As combustible syngas began generating from the heating wood, the gas recycling system routed the gas back into the combustion zone, enabling self-sustaining carbonization while minimizing external fuel consumption.

3. Cooling & Unloading Inspection

After completing the high-temperature holding phase, the heating was stopped and the furnace cooled down safely. Upon opening the door, the team verified that all wood sticks were fully converted into solid, high-purity charcoal without structural ash collapse or unburnt timber cores.

Key Performance Results & Quality Metrics

• 100% Carbonization Conversion: No residual raw wood or uncarbonized cores were found in the center of the pile.
• Preserved Natural Texture: The produced charcoal retained the exact shape and grain of the wood sticks with high structural integrity and low friability.
• High Metallic Ringing Sound: Physical impact tests demonstrated superior fixed-carbon content and density, ideal for premium commercial BBQ and industrial biochar applications.
• Clean & Low Emission: The closed syngas recycling loop prevented smoke leakage into the workshop throughout the operating cycle.

Why Choose Guoxin Horizontal Carbonization Furnace?

1. No Pre-Crushing Required: Handles long branches, raw logs, and bamboo directly, saving equipment investment on wood chippers.

2. Energy-Efficient Syngas Recycling: Reuses self-generated pyrolysis gas to fuel the heating process, cutting gas/fuel costs by up to 60%.

3. Flexible Capacity & Modular Design: Can be configured as single units or multi-furnace batteries to meet growing production needs.

FAQ

Q: What is the average carbonization cycle time for wood sticks?

A: Depending on moisture content and stick diameter, a typical batch takes between 6 to 8 hours for heating and carbonization, followed by a controlled cooling period.

Q: Can this furnace process biomass other than wood sticks?

A: Yes. The horizontal carbonization furnace effectively processes coconut shells, bamboo poles, wood briquettes, palm kernel shells, and thick agricultural waste.

Ready to Upgrade Your Charcoal Production Line?

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Request a Custom Quote Today or contact our engineers at Eve@guoxinmachinery.com