People usually use charcoal for heating, BBQ and hot pot meal during the harsh winter due to its smokeless feature with high thermal value and long-time combustion. Aside from the aforesaid advantages, biomass charcoal also boasts excellent capability of absorption. The following is the technological process of the biomass charcoal.
1. Drying
The commonly used proper value of moisture is kept around 10%-15%. In this respect, our first task accordingly should be done with drying of material. Excessively moist or even dampened material may as well be fielded in the open air to get the surface moisture vaporized so that drying time and consumption of fuel can both be reduced. After that, material can be conveyed into drying fueled by a burner, with the drying temp remaining roughly 140-300 degrees Celsius to dry material with quite high water content at a time. The drying degree of material can be varied based upon design of pipeline length and air volume, yet with the adjustment by not more than 55-70 degrees Celsius. Actually, if raw material moisture content is initially kept around 50%, of course the material can be dried at a time with drying temperature remaining roughly 80-100 degrees Celsius.
2. Briquetting
Biomass material could be squeezed forming briquettes in briquette presses. Nonetheless, heating coil besides mold assembly namely the propeller and sleeve is another pivotal component driving temperature of the mold assembly up to 350 degrees Celsius or so. To process briquettes with fissure-free glossy surface and high density, we shall coordinate material species with specific moisture content and compatible temp. Correspondingly, temp should be adjusted and further verified according to on-site test. As per the past outcomes, we have the consistent assumption of certain propeller compression ratio and moisture content of 10%-15%, on the basis of which temperature put into use varying also in light of material size and specific model of the heating coil usually spans the range of 140-500 degrees Celsius.
3. Carbonization
The carbonizing process discussed here is about medium and low temp carbonization. Ignite aligned briquettes within charcoal machine (namely the carbonizing furnace) till furnace temp hits up to 160 degrees Celsius under which moisture content of biomass briquettes will be vaporized due to the heat externally attained and the one produced by the self-combustion. But the chemical contents of biomass briquettes are still constantly remained.
Contact us
KMEC is one of the earliest and largest biomass briquette press manufacturer that provide our customers with qualified products, competitive biomass briquette price, and superior service. If you need biomass briquetting press, please feel free to contact us.
TEL: +86-372-5388851
FAX: +86-372-5388852
E-mail: info@chinapeanutmachinery.com
http://www.woodbriquetteplant.com/
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