Our briquetting machines can be used for many applications, where the best known are briquetting lines for consumer logs and industrial boilers. Lately, we have been delivering many lines for the production of briquettes from agricultural residues. More specialized applications include briquette lines for MDF, Wood fines, bedding for animals and briquettes for biogas. The latest addition includes the production of briquettes for the production of carbonized briquettes. Take a look at some of our cases.
Consumer wood briquettes are the ideal products for replacing traditional firewood. Since the end of the 90s, the demand for consumer wood briquettes used for home heating systems, fireplaces and wood burning stoves have increased. Driven by the global focus on renewable energy, this demand is still growing. Compared to alternatives, briquettes are both convenient, profitable and sustainable.
With our briquetting machines, your waste will be turned into valuable renewable energy. In collaboration with our sister company RUF Briquetting System, we offer a wide range of customized solutions and a full line of consumer briquetting machines varying from low to very high capacities.
At C.F. Nielsen, we have specialized in mechanical briquetting. We offer high capacity lines ranging from 4-500 kg/hour and upwards, corresponding to wood waste of approximately 1.000 tonnes per year and more.
Testing of your raw material is essential, as raw material, even if it is the same species, varies from country to country and from customer to customer. By testing your actual raw material many potential difficulties will be avoided during start-up and production at your new briquetting plant.
Costs should not be the only factor to be considered, when evaluating a briquetting plant. For newcomers in the business of biomass, production might not seem complicated. Never the less, it is our experience that two customers with similar raw material can have a very different success rate in terms of profitability.
The moisture content of wood changes the calorific value of the latter by lowering it. Part of the energy released during the combustion process is spent in water evaporation and is consequently not available for any wished-for thermal use.
Raw material is the residue you are looking to use in your briquetting production. It is typically unprocessed material from either from wood or agricultural by-products. Examples such as straw, pineapple waste, sugarcane bagasse, birch, larch etc. can be used for briquetting.
The calorific or heating value is an important indicator of the quality of the pressed fuel briquettes. It measures the energy content of the briquettes. It is defined as the amount of heat evolved when a pressed fuel briquette is completely burnt and the combustion products are cooled. And the Gross Calorific Value, shortened as GCV, refers to the calorific value with the condensation of water in the latent heat, also known as higher heating value. Whereas during combustion, the heat of condensation of water contained in the fuel and formed during combustion will become unavailable because of the vaporization of the water. And then, the useful heating value is gained after the heat of condensation of the water being subtracted from the gross calorific value, which is referred to as the Net Heating Value or lower heating value.
Due to low level of lignin, it is not possible to make briquettes in bigger diameter than 75 mm without adding any binder. Although rice husks are perfect for briquetting, they also contain a high silica content, resulting in a high ash content. Briquettes from rice husk are most often used in boilers or furnaces with very high burning temperature to avoid a low silica melting point and sintering (crystallization) of ash.
Biomass briquettes are a biofuel substitute to coal and charcoal. Briquettes are mostly used in the developing world, where cooking fuels are not as easily available. There has been a move to use briquettes in the developed world, where they are used to heat industrial boilers in order to produce electricity from steam. The briquettes are co-fired with coal in order to create the heat supplied to the boiler.
The RUF wood briquette machine forms briquettes from your wood chips to enable profitable sales. The LIGNUM wood chip briquette machine range has the flexibility to process various different grain sizes of the material into briquettes of a consistently high density and quality. The LIGNUM range works with a very high level of energy efficiency thanks to our innovative RUF hydraulics. Due to its compact structure, the sawdust press is easy to incorporate into existing production processes and is suitable for 24h operation.
Thanks to the great number of wood chip machines we have sold, RUF briquettes are popular all over the world as a sustainable, high-quality fuel. A consistent length and a constant weight of the briquettes can largely be ensured, even with different bulk densities, through our highly developed system of briquette length regulation. To be able to press wood chips, it is important that the water content of the material is below 15%. Depending on customer requirements, we offer wood briquette machines for throughputs between 410 and 1,050 kg per hour.
"This is the perfect solution to our handling and space problems. And the waste aluminium in the compact briquette shape largely cleaned of the cooling lubricant emulsion achieves a higher profit when sold on ."
"First and foremost I am impressed by the good price-performance ratio, the quality and the reliability of the machines. Besides I truly appreciate the excellent personal relationship I have experienced with the family business and their Senior Director Hans Ruf from day one."
"Our collaboration with company RUF has started in 2002 and has been successful through all these years. RUF is not just a world known machinery producer name and the leader in briquetting technologies market. RUF is your trustful business partner as it has been a reliable and supporting partner for us during both periods of the sales peaks and during market depression. Its our luck to have the same business philosophy with our main business partner the RUF company. When both of you have the same aim, you achieve it faster!"
"We do not have one unsatisfied customer with a RUF machine and we have sold some 40 systems here in Australia and New Zealand. That in itself speaks volumes for the RUF company and its equipment. In our opinion the RUF briquette press cannot be matched from a performance basis. Although it is more expensive than most competing machines from a capital cost point of view, the ongoing trouble free performance and maintenance of the RUF machines put them well ahead of the opposition."
The merger of RUF and C.F. Nielsen means that the worlds biggest range of solutions from a single provider has been opened up to users of briquetting machines: Hydraulic Briquetting Systems (rectangular briquettes), Mechanical Briquetting Systems (round briquettes) und Extruder Briquetting Systems (dense briquettes suitable for carbonization) Almost irrespective of the throughputs that are needed, the quality of the material and chips, and the production conditions that prevail we can always find the optimal briquetting solution in order to bring the greatest possible benefit to our customers.
In general, almost all materials can be made into briquettes. However, the chip particles should not be bigger than 50mm. The chips should not contain any impurities. For Wood & Biomass the moisture content should be less than 12 % (max 15 %).
The costs of a briquette press depend on various factors, such as the starting material, required throughput and briquette density. Our experts will be happy to advise you on a one-to-one basis and can draw up a non-binding quote.