Ring-die granulator for biomass granules

Abstract

The invention belongs to the technical field of granulating of biomass granules and particularly relates to a ring-die granulator for the biomass granules. The ring-die granulator comprises a base, wherein a box body is arranged on the base, a granulating bin is arranged above the box body, a ring die is arranged in the granulating bin, and a pressing roller is arranged in the ring die and is in engaged fit with the ring die; a planetary carrier is rotatably mounted in the box body, a roll shaft is arranged on the planetary carrier, a pressing roller is rotatably arranged on the roll shaft, anadjusting mechanism for adjusting a gap between the pressing roller and the ring die is arranged on the planetary carrier, and the planetary carrier is connected with a driving device; the ring die comprises two or more ring die units, and flanges are arranged at the two ends of each ring die unit; and an indent arched face is formed at the outer side of the ring die, and a plurality of die holesare formed in the ring die and are of radial arrangement along the indent arched face. According to the ring-die granulator for the biomass granules, provided by the invention, the pressing roller isin engaged fit with the ring die, so that an extruding force on materials is strengthened, the density of the materials is improved, and the effect and efficiency of forming are improved; the ring die can be disassembled, maintained and replaced, and thus, the cost is reduced; and the ring die is uniformly stressed, so that the limit of endurance of the ring die is increased.

Description

technical field [0001] The invention belongs to the technical field of biomass particle granulation, and specifically refers to a biomass particle ring die granulator. Background technique [0002] Energy shortage and environmental crisis are the focus of attention in today's society, and they are also the bottleneck of modern social and economic development. Compared with fossil energy, coal, oil and natural gas, biomass energy has gradually become a new force in the energy industry because of its renewable, abundant resources, and eco-friendly environment, and plays an important role in today's social and economic development. [0003] The development of biomass pellet fuel in my country is of great significance, which is conducive to alleviating the contradiction between energy supply and demand in our country, establishing a sustainable energy system, benefiting the protection of our ecological environment, adjusting the economic structure of rural areas in our country, ...

AI Technical Summary

Problems solved by technology

[0005] After analysis, it is found that during the whole granulation process, the alternating stress on the ring die is an asymmetric cycle, and fatigue damage usually occurs to the ring die, which is the main form of ring die failure, and the manufacturing cost of the ring die is relatively high, so it needs to be increased. Increase the thickness, width and inner diameter of the ring die to increase the durability limit of the ring die and increase the service life of the ring die, but this will further increase the manufacturing cost of the ring die

Images