Carbon powder extruder for hookah charcoal

Carbon powder extruder is the core equipment for the industrial production of hookah charcoal. The key to success lies in the precise ratio of raw materials, the control of molding density, and the optimization of combustion performance.

By adjusting the ratio of binder to combustion aid and optimizing the extrusion parameters (temperature, pressure, speed), high-density, easy-to-ignite and stable-burning hookah charcoal can be produced. It is recommended that enterprises give priority to natural binders and environmentally friendly combustion aids, and establish a strict quality inspection system to meet the needs of the international market.

1. Equipment and raw material preparation

Extruder: It is necessary to choose a spiral extrusion or hydraulic molding machine with a pressure range of 20-50MPa and equipped with a temperature control system (heating to 80-120°C).

Supporting tools: mold (cylindrical or polygonal, diameter 8-15mm), cooling conveyor belt, segment cutting machine.

Basic formula:

Charcoal powder (80-200 mesh): 80%-85%

Binder (starch or lignin): 10%-15%

Combustion aid (nitrate, optional): 3%-5%

Example formula: coconut shell charcoal powder (85%) + gelatinized corn starch (12%) + potassium nitrate (3%).

2. Production process

Raw material pretreatment

Mixing: Put charcoal powder, binder and combustion aid into a mixer and mix evenly (time 10-15 minutes).

Humidity adjustment: Spray 5%-8% water to make the mixture humidity reach 15%-20% to improve the formability.

Extrusion molding

Temperature control: Heat the mold to 90-110°C to reduce the melt viscosity of the binder and enhance fluidity.

Pressure adjustment: The spiral extrusion pressure is set to 25-35MPa to ensure that the density of the carbon rod is ≥1.3g/cm³.

Molding speed: The extrusion line speed is controlled at 0.5-1.2m/min to avoid breakage caused by excessive speed.

Cooling and cutting

Air cooling: The cooling conveyor belt (the temperature drops to below 40°C) is used to shape and prevent deformation.

Cutting: Use a rotating blade to cut into sections, the length is 25-30mm (standard hookah charcoal size), and the incision flatness error is ≤0.5mm.

Post-processing

Drying: Dry in an oven at 60-80°C for 2-4 hours, and the moisture content drops to below 5%.

Quality inspection: Test the hardness of the charcoal rod (compression resistance ≥15MPa) and the burning time (fast-burning charcoal ≤10 seconds to ignite, natural charcoal ≥50 minutes of continuous burning

3. Common problems and solutions