A biomass pellet molding machine

Abstract

A biomass granulator comprises a feeding mechanism and also comprises at least one pair of first and second granulating mechanisms cooperating with each other to work; the first granulating mechanism is provided with a recess die hole portion and / or a bump hammer portion, the second granulating mechanism is provided with a recess die hole portion and / or a bump hammer portion, the bump hammer portion may be fitted exactly in a duct of the recess die hole portion, the bump hammer portion executes an action of hammering and compacting material dropped from the feeding mechanism into the recess die hole portion. Crushed material is fed into the recess die hole portion through cooperation of the bump hammer portion and the recess die hole portion, the material is hammered and compacted during the process and is thereby formed in the recess die hole portion, and the material has no need to be dried before forming; since overall friction and rolling for forming equipment is omitted, damage to a forming mechanism is avoided and the life of equipment is prolonged.

Description

【Technical field】 [0001] The invention relates to a particle forming equipment, in particular to a biomass particle forming machine. 【Background technique】 [0002] In recent years, due to the increasingly prominent energy problems, the development of biomass fuel molding technology has also attracted people's attention. Many types of biomass fuel molding equipment have been researched and developed, among which ring die compression molding equipment using high-temperature compact molding methods is more common. The working principle is that the embedded combination of the ring die and the pressure roller (roller) is used. After the crushed material enters the pressing area, it is extruded between the ring die and the pressure roller. The material is softened and viscous by the heat generated during extrusion. combined and extruded from the ring die aperture. However, this equipment obviously has the following disadvantages: First, it has a high strength against the humidit...

AI Technical Summary

Problems solved by technology

However, this equipment obviously has the following disadvantages: First, it has a high strength against the humidity of the crushed material, because when the moisture content of the material is too high, the moisture will easily form an isolation layer between the particles, making the layers unable to be tightly combined , the extruded particles are easy to swell and scatter, and cannot be formed. Therefore, after the material is crushed, it needs to be dried and dried to remove moisture before entering the pressing area, so that the humidity can be kept in a low range; secondly, even if the material is crushed and dried After drying, when it enters the die hole of the ring die, it will be squeezed by the pressure roller to generate heat. In addition, the operation of the pressure roller in the ring die will also generate huge heat, which will cause the remaining water in the material to evaporate. , so that the particles in the base layer swell and scatter and cannot be formed; the third is that the internal operation of the pressure roller and the ring die will cause huge damage to the transmission mechanism, which seriously affects the service life of the ring die

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