Hemp Fiber Production & Processing
Hemp’s versatility allows for successful cultivation in practically any climate with traditional seeding and harvesting equipment. The growing season is usually 95 to 115 days in temperate climates from sowing to harvest. Generally hemp grows to be 1.5-2.5 m (5-8 ft) high with stalks 4–10 mm (0.16-0.39") in diameter. In some cases, the plants can grow as high as 3-4 m (10-11 ft) high and the stalks as thick as 20-25 mm (0.79-0.98"). Once harvested, hemp stalks are often baled and stored until the bales are processed into products.
Decortication & Processing
Decortication, one of the many steps involved in processing hemp, is the separation of hemp’s outer layer (bast fiber) from the inner core (hurd). Conventional decortication often uses the same hammer mill or hammer mill-like mechanisms (rollers, scutchers, gins, etc) that have been used for over a hundred years; using a beating action to break down hurd and fiber. This hammer mill action significantly damages both hurd and bast fiber, while creating a substantial amount of dust from broken down material. Due to this damage, hammer milled hemp bast fiber and hurd are limited to low-value markets.
The unique kinematic mechanism employed by the HempTrain™ Advanced Processing Plant is far less damaging to the bast fiber and hurd, therefore creating no appreciable dust. HempTrain™ is more than just a decorticator, it’s a complete processing facility capable of separating whole hemp plants into high-value products and streams. When processing fresh/green hemp, HempTrain™ will concentrate the flower material into a single high-CBD fraction for industrial-scale extraction. When dry feedstock is processed, hemp is instead separated into long, strong bast fiber, clean, size-specified hurd, and a nutrient rich green microfiber fraction. The HempTrain™ includes the CGT Bale Opener, explosion-mitigating dust collector, powdered-additive mixing system, and a PLC control system with touchscreen.
*Certain types of feedstock with a higher content of bast fiber (>15% w/w) and longer bast fiber in length (>3ft), as well as certain bale configurations may significantly affect the throughput capacity. Feed rate and manner of loading may change significantly depending on feedstock. For more information, please contact Canadian Greenfield Technologies Corp.