Equipment pt 5Material Handling Equipment and Safety

Chapter 18

• Process technicians should report all abnormal events to their supervisors.
• Gravimetric feeders convey material at a controlled rate by measuring the weight lost over time.
• A bucket elevator has a continuous line of buckets attached to two endless chains running over tracks and driven by sprockets.
• A conveyor is a mechanical device used to move material from one place to another in a continuous stream.
• Excessive dust accumulation can lead to an explosion.
• A belt conveyor uses belts supported by pulleys that run in a continuous loop.
• The purpose of an interlock is to prevent damage to equipment, prevent possible death of plant personnel, and prevent personnel injury.
• A feeder is solids handling equipment that carries material to a process device.
• Live bottom is a vibratory device attached to the bottom of a bin or silo to facilitate the smooth discharge of material.

Chapter 19

• The Resource Conservation and Recovery Act establishes a program to manage both hazardous and nonhazardous solid wastes, as well as underground storage tanks.
• Wastewater is one of the main disposal concerns in process facilities.
• A dike is an environmental control measure that is a containment device built around a piece of equipment to contain any liquids should the equipment rupture or leak.
• Coal gasification is a pollution control device that converts coal from a solid to a gaseous state before burning to produce electricity.
• An API separator is a device based on specific gravity differences between the oil and the wastewater.
• Particulates released by some process equipment have been linked to adverse health effects like cancer.
• Lead, SO2, and CO are common materials covered under the Clean Air Act standards.
• Torrential rain is a potential problem for a wastewater treatment facility.
• Catalytic treatment removes NOx, H2S, and SO2 from air emissions.
• OSHA mandates the environmental control training that a process technician must receive.
• Baghouses are pollution control devices that use fabric or bag filter tubes, envelopes, or cartridges designed to capture, separate, or filter particulates as the effluent gas stream passes through them.

Chapter 20

• A dynamic mixer rotates to combine products.
• Ejectors are easy to maintain.
• An agitator generates turbulence and promotes mixing.
• An ejector helps maintain vacuum.
• An inline mixer operates by creating a complex flow path that results in an intermingled contact between the streams.
• An eductor does NOT come with a risk of possible exposure to moving equipment.
• A centrifuge uses centrifugal force to separate solids from liquids.