Fuel briquettes is a kind of solid fuel and alternative to conventional firewood. The use of briquettes greatly improves the efficiency of furnace or boiler, and also reduces the amount of waste. Raw material for briquettes can be waste from agriculture and timber farms, peat. Fuel briquettes are made from natural materials, so that during combustion no harmful substances. In addition, the amount of heat released during the combustion of briquettes is the same as the combustion of coal.
Briquettes are mainly divided into three types:
Pini&key. Is briquettes, which have a radial hole and form a six – or octagon. They are made on screw presses under high pressure (1100 bar), and in the final stages of production are subjected to firing, so they are always dark brown. This form of briquettes resistant to mechanical damage and moisture, the hexagonal shape is convenient for transportation. Also, the briquettes have a high heat output and long burning. The disadvantages include time-consuming and energy-intensive process of their production.
RUF. This briquettes are made in hydraulic equipment with a pressure of 400 bar, and they have the shape of a brick. Mostly light color. Unlike the previous species, the species briquettes RUF made less time consuming and less energy-consuming. Their form also contributes to convenient transportation. The production equipment is simple, so reliable. However, this form of briquettes, there is one drawback. As briquettes are not subjected to heat treatment, they are more susceptible to moisture and mechanical influences. To eliminate this disadvantage and to keep the briquettes in the initial quality need to be packing in more reliable packaging.
Nestro. They are cylindrical in shape and produced at the shock-hydraulic presses at high temperature and pressure of 400-600 bar. The main advantage of this type of briquettes is low cost and the technique, which produced briquettes is simple and reliable. As with previous, cylindrical briquettes affected by moisture and mechanical damage. So you also need to provide a reliable package, so that the briquettes do not lose their properties.
In the manufacture of briquettes does not use auxiliary substances, such as glue. During pressing under heat forms a natural adhesive substance that promotes the formation of briquettes.
All briquettes have properties that give the advantage of their use. The briquettes burn for a long time, and then there’s also quite a long period of time. For this reason, the furnace or boiler can be three times less to fuel. When hit oil on the briquettes not ignition occurs, and continues with a smooth decay. Still, we note that in the process of burning the briquettes absolutely no sparks and less smoke. Calorific value of briquettes is the same as coal. During the combustion of briquettes still for four hours to maintain a stable temperature. Given the fact that the manufacture of briquettes does not use chemical components, it is absolutely ecological fuel.
Fuel briquettes are used as solid fuel in furnaces, fireplaces, braziers and solid fuel heating boilers. Given the environmental friendliness of this fuel, it is well suited for heating residential houses, greenhouses, saunas, and vegetable pits.