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Why can't biomass pellet fuel be popularized on a large scale?
After a period of development, in all walks of life have a wide range of applications, large farms livestock feed, easy storage, transportation; civilian heating and living energy, clean, non-polluting, easy storage, transportation; industrial boilers and kiln fuel, replace coal and gas, to solve environmental pollution; can be used as gasification power generation, thermal power generation fuel, to solve the problem of small thermal power plant shutdown.
Traditional technology pelletizing high cost China used the pelletizing method are traditional production methods, that is, the raw materials from the inside of the ring die to join, through the pressure roller extrusion ring die into granular. Including raw material drying, pressing, cooling, packaging, etc.. The process requires a lot of energy, first of all, in the process of pellet pressing and forming, the pressure reaches 50 - 100MPa, the raw materials under high pressure deformation, heating, the temperature can reach 100 ℃ - 120 ℃, the motor drive needs to consume A large amount of electrical energy is needed to drive the motor.
The humidity of the raw material is about 12%, too high and too low humidity can not be well granulated, in order to achieve this humidity, many raw materials have to be dried before they can be used for granulation; pressed out of the hot particles (particle temperature up to 95 ℃ - 110 ℃) to be cooled before packaging. The latter 2 processes consume 25% - 35% of the energy in the whole process of pelletizing, coupled with the relatively large wear and tear on the machine during the molding process, so the traditional pellet forming machine products are more expensive to manufacture.
Most people do not know enough about biomass pellets with high energy, environmental protection, easy to use characteristics, and even many energy-using units simply do not know that there are biomass pellet products, not to mention awareness and application. After the production of biomass pellets, the service measures such as transportation, storage and supply are not convenient for users.
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