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plastic and pellet handling

Teacher: Michael Stevens
Across
a permeable polypropylene felt that is placed in a hopper and then aerated to discharge product from the hopper
long and ribbon-like and are formed by frictional heat through extended contact with smooth internal surfaces, as in a long sweeping bend
to shape by forcing through a die
a large bag used to handle product: to store and transporting products as varied as cereals to powdered chemicals to animal feeds. The bags typically hold anywhere from 2000 - 4000 lbs of product and generally are placed on pallets by fork lifts using the attached corner lift loops. (aka: super sacks, big bags, or totes)
a tower that is used to store product (mass storage)
a pneumatic convey system (often using nitrogen gas) that is completely sealed from atmosphere (nitrogen is used for combustible products to eliminate the need for explosion protection equipment)
to move product in enclosed piping often using air (sometimes nitrogen) from one place to another
piping system that carries the product from one place to another
designed to receive product from a vacuum or pressure system. It separates the product conveyed from the convey air, emitting clean air to the environment.
the presence of a minor and unwanted constituent, contaminant or impurity
often used as a primary pre-collector in a dust collection system or as a product receiver
Down
corrugated pallet cardboard boxes
a result of the tearing of polyolefin pellets as they come into contact with rough conveying surfaces at high velocities.
pressure or vacuum is used to convey product with high air velocities and low pressures (less than 15 PSI) and have low material to air ratios (typically less than 12:1)
typically a cylindrical shaped filter made of cloth or felt (most commonly polyester) designed to remove dust from air (clean air comes out after filtering, but dust is collected)
self-supporting filter with pleats (typically 60 or 45 pleats) designed to remove dust from air (clean air comes out after filtering, but dust is collected)
vessel designed in accordance with asme specifications for operating pressures over 15 psig. asme certification and national board registration required.
collect dust generated when dumping powder and bulk solids from bags, boxes, drums, and other containers, and return the material to the hopper (also known as manual dumping stations).
a railroad car that contains product to be conveyed into silos