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A pellet mill is at the heart of any pellet construction operation. The pellet mill has the main task in pellet formation, along with is therefore the most energy intensive in addition to expensive piece of pellet mill equipment. The main components of the pellet mill are the roller plus die. There are two main designs of pellet mills including the flat die as well as disc die pellet mill. The die is where pellet formation takes place, it contains a series of holes at a predefined diameter. For case most pellet stoves call for a 6 or even a 4mm pellet, where many pellet boilers can use up to an 8mm pellet. The pellet mill die is the most important part of pellet mill equipment. The die plays the most significant role in pellet quality, pellet mill productivity as well as pellet mill energy consumption. The die has to be designed to do a balancing act, to achieve the pellet quality as well as density required while keeping pellet mill construction as high as probable as well as keeping pellet mill fuel consumption as low as possible. The wholes on the die are not straight, there is a relief at the entrance along with exit of each hole. These relieves help in compression and also flow due to the die. There are precise hole designs for each raw matter to achieve maximum productivity as well as quality. On the other hand there are also die designs which are suitable for a general assortment of raw materials to save the expense of multiple dies.

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Starting a pellet works and pellet construction line can be a high capital project. Because of the fuel, pressure and forces involved in pellet manufacture, the equipment has to be heavy duty. Though, at PelHeat we provide a free consultation service to help clients obtain pellet construction equipment directly from the manufacturer at the lowest likely prices. We provide a free consultation service on a selection of pellet mill equipment including hammer mill, crushers, dryers, pellet mills plus complete pellet plants. To learn more please visit the PelHeat website to browse the products.

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There is a wide range of pellet mill equipment within a biomass pellet plant to fulfil a assortment of process requirements. The main requirements assortment from particle size reduction, particle drying a finally pellet compression. To start with, it is necessary to decrease the size of the raw matter down to a small uniform particle size ready for the pellet mill. The general rule is the particle size must be smaller or equal to the diameter of the hole in the pellet mill die. So for case in point if you wish to create a 6mm pellet, the particles which enter the pellet mill must be smaller than 6mm. To achieve this a hammer mill is generally used, by means of a screen of the appropriate size. Once the particles have been reduced, it is now time to dry the particles down to the required 15% moisture. Now not all raw materials necessitate drying, yet most virgin biomass resources do require drying. Once dried the particles can enter the pellet mill equipment. On large pellet mills this will mean first passing because of a conditioner, perhaps by means of steam to prepare the matter. Once in the pellet mill equipment, pellet compression can finally take place to form the pellet.

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