Specifics On How A Firewood Pellets Are Manufactured In A Pellet Press
November 12, 2009 by Go Green Tips · Leave a Comment
Currently the world is facing many challenges in terms of sustaining an economic recovery and at the same time enduring changes to our power supply change to tackle global warming. Our current energy needs are met practically entirely by oil, gas and coal. The problem is the incineration of these types of fossil fuel energy is responsible for amplified global temperatures. Fossil fuels are a form of trapped carbon from deep underground. When we burn up these fuels we are re-introducing carbon back into the surroundings. The carbon in the surroundings acts like a gigantic mirror, reflecting the suns energy back at the world. Therefore we need to move away from carbon positive fuels on to more carbon neutral, and possibly carbon negative fuels. Biomass is any form of organic material, which can be used as a fuel source. This includes wood waste from timber processing which has traditionally being turned into pellets. Premium fuel pellets are the premier grade of wood pellet fuel. Premium fuel pellets are created mainly from pine and spruce residues.
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Pellets stoves and boilers are used to burn wood pellets efficiently to warmth homes and businesses. Pellet stoves are used to heat single rooms or give extra heating to the rest of the property. Both units work on the principle of a pellet hopper, auger feed system and burn pot. The auger controls the tempo of pellet feed to regulate the temperature of the fire. The burn pot also has a hot rod starting to ignite the fire. Therefore wood pellets supply a very low maintenance way to heat with wood. Also wood pellets burn much more proficiently than say logs, premium pellet fuel can produce as little as 0.5% ash content.
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A pellet press is the key piece of equipment when manufacture wood pellets. There are a range of different designs of pellet press, however the theory of all the designs remains pretty much the same. The pellet configuration takes place in the die. A die is a piece of metal a few inches in depth with holes drilled through to form the pellet. The size of the holes depends on the principle of the pellets. For example pellets for pellet stoves are usually 6mm in diameter, however pellet boilers can use a larger diameter of pellet up to 8mm. To squeeze the wood through the die to form pellets a series of rollers condense the material through the holes in the die. When the pellets leave the die they are awfully hot, and must be chilled before they can be used. Not all pellets formed are of the same quality. A quality pellet should have a surface shine, and break cleaning into only a few pieces.
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