What is the production principle of briquette machine?

Briquette machine is one of the core equipment in the production of briquettes and charcoal. It directly affects the quality of charcoal. Improper operation of briquette machine would lead to the problem of broken charcoal, cracked charcoal and other problems. Then, what is the production principle of sawdust briquette machine and what are the functional features of the briquette machine?



The production of briquette machine is the process of hot briquetting on the biomass in the condition of no binder. The molding process is mainly due to the presence of lignin in biomass. Lignin content in wood is 27%- 32%(dry material), and it is 14%-25% in grasses. Lignin is amorphous without melting point, but it has softening point. When the temperature is 70-100℃, the bonding strength increases and it can melt during 200-380℃. Appropriate temperature of the hot press molding is 200-400℃. The briquette machine adopts power screw propulsion extrusion mechanism.The biomass in the sleeve is extruded through the propeller. Under the effect of external force, the biomass particles begin to rearrange the position relations, and mechanical deformation and plastic flow occur.

In the direction perpendicular to the larger stress, the particles are mainly combined with each other in the form of mesh, while in the direction perpendicular to the smaller stress, the particles are mainly combined with each other in the form of tight bond. With the increase of external force, the volume of biomass decreases significantly and volume density increases significantly. With internal gluing and external coking of biomass, it has a certain shape and strength. The sawdust briquette machine has unique propeller design and repair technology to make the power of the energy to the limit, that is to ensure the speed of the briquettes also improve the quality.

The briquette machine is widely used in domestic charcoal making. In recent years, China has continuously strengthened its efforts in ecological environment construction, vigorously implemented the natural forest protection project, and it has become inevitable to prohibit the cutting of trees, limit the use of natural charcoal, prohibit the burning of charcoal in earth kilns, and replace natural charcoal with mechanism charcoal. Briquette machine with unique performance advantages are more and more widely used in industry, agriculture, animal husbandry, chemical industry, metallurgy, heating, barbecue and other fields.
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