In the charcoal processing industry, mechanically produced charcoal briquettes are widely used for barbecuing, heating, and industrial fuel applications due to their complete combustion, uniform shape, and high calorific value.

However, many customers frequently encounter various technical issues when operating charcoal briquette production lines, such as unstable forming, excessively high moisture content, or incomplete carbonization.

This article will analyze common problems and corresponding solutions from the perspectives of equipment configuration and production processes.

কয়লা উৎপাদন যন্ত্রপাতি
কয়লা উৎপাদন যন্ত্রপাতি

Main Equipment of Charcoal Briquette Production Line

Before analyzing the issues, let’s briefly review the composition and process flow of the entire production line:

Wood crusher: grinds branches, wood chips, and sawdust into fine particles.

Tumble dryer: removes excess moisture from raw materials, ensuring a moisture content of 10%-12%.

Briquette press: compresses dried raw materials into rod-shaped briquettes under high temperature and pressure.

Carbonization furnace: carbonizes formed briquettes in an oxygen-free environment.

Pillow packaging machine: automatically packages finished charcoal briquettes for convenient sales and transportation.

চারকোল উৎপাদন প্রকল্প
চারকোল উৎপাদন প্রকল্প

Poor pellet formation

Problem manifestation:

Charcoal pellets exhibit cracking, brittleness, and poor formation.

Primary causes:

  • Excessive raw material moisture content (exceeding 15%)
  • Uneven particle size distribution; raw material too coarse
  • Insufficient temperature of compression rollers or molds

Solutions:

  • Control post-drying raw material moisture content between 10–12%
  • Inspect crusher screens to ensure consistent output fineness
  • Adjust the briquette machine heating element temperature to 280–300°C

Incomplete carbonization of charcoal rods

Problem manifestation:

Charcoal rods appear grayish or have charred surfaces while remaining uncarbonized internally.

Primary causes:

Insufficient furnace temperature or uneven heating

Overcrowded stacking of rods is hindering airflow

Inadequate carbonization duration.

Solutions:

  • Ensure carbonization temperature remains stable between 600–800°C
  • Arrange charcoal rods properly within the furnace to maintain air circulation
  • Appropriately extend the carbonization time to ensure thorough carbonization of the core

Excessive moisture content in charcoal sticks

Problem manifestation:

Charcoal sticks emit smoke during combustion and ignite slowly.

Primary causes:

  • Insufficient drying of raw materials
  • Inadequate temperature or airflow in the dryer
  • Moist storage environment after carbonization

Solutions:

  • Adjust the temperature and feed rate of the drum dryer
  • Use a closed drying system to prevent moisture recirculation
  • Store finished products in a dry warehouse to prevent moisture absorption and dampness

Low output or machine jam

Symptoms:

Reduced production capacity of the briquette machine, with poor material discharge.

Primary causes:

  • Raw materials contain impurities (stones, metal, hard bark)
  • Severe wear on the mold
  • Carbon buildup or blockage in the feed screw.

Solutions:

  • Pre-screen materials to remove impurities and ensure purity
  • Regularly inspect and replace molds
  • Clean the briquette machine’s screw channels to maintain smooth flow

Low combustion efficiency of charcoal sticks

Problem manifestation:

Finished charcoal sticks exhibit short burning duration and high ash content.

Primary causes:

  • Low proportion of woody raw materials (high proportion of weeds and bamboo shavings)
  • Insufficient carbonization temperature or duration
  • Excessively low density of charcoal briquettes

Solutions:

  • Select high-density wood shavings and hardwood as primary raw materials
  • Adjust carbonization parameters to ensure complete carbonization
  • Increase compaction density in briquette presses

Advantages of the Shuliy automated charcoal briquette production line

Modern charcoal briquette production lines not only resolve the instability issues of traditional manual charcoal making but also deliver significant economic benefits:

Fully automated operation: only 1–2 operators are needed to manage the entire production line

High output with low energy consumption: high continuous working efficiency, with energy consumption 30% lower than traditional processes

Intelligent monitoring system: automated temperature and pressure control minimizes human error

Versatile feedstock compatibility: processes wood chips, rice husks, bamboo shavings, and fruit shells

Superior product consistency: high-density pellets with stable combustion performance, ideal for export markets

Consistency: high-density pellets with stable combustion performance, ideal for export markets

উপসংহার

While charcoal briquette production may appear straightforward, consistently producing high-quality briquettes requires scientific control over raw materials, temperature, and equipment conditions.

By optimally configuring wood chippers, dryers, briquette presses, and carbonization kilns, you can significantly enhance product quality while achieving greater economic returns.

If you wish to establish your own charcoal briquette production line, our team of engineers can provide comprehensive design and installation solutions.