Wheat is one of Southeastern Washington’s popular crops.
Taken in the Horse Heaven Hills, Tri-Cities, WA USA

From Wikipedia, the free encyclopedia

Grain elevators are buildings or complexes of buildings for storage and shipment of grain. They were invented in 1842-43 in Buffalo, New York, by a local merchant named Joseph Dart, Jr. and an engineer named Robert Dunbar. Using the steam-powered flour mills of Oliver Evans as their model, they invented the marine leg, which scooped grain out of the hulls of ships and elevated it to the top of the marine tower.¹ Older grain elevators and bins often were constructed of framed or cribbed wood and were prone to fire. Grain elevator bins, tanks and silos are now usually constructed of steel or reinforced concrete. Bucket elevators are used to lift grain to a distributor or consignor where it flows by gravity through spouts or conveyors and into one of a number of bins, silos or tanks in a facility. When desired, the elevator’s silos, bins and tanks are then emptied by gravity flow, sweep augers and conveyors. As grain is emptied from the elevator’s bins, tanks and silos it is conveyed, blended and weighted into trucks, railroad cars, or barges and shipped to end users of grains (mills, ethanol plants, etc.).
Prior to the advent of the grain elevator, grain was handled in bags rather than in bulk.

Today, grain elevators are a common sight in the grain-growing areas of the world, such as the North American prairies. Larger terminal elevators are found at distribution centers, such as Chicago and Thunder Bay, Ontario, where grain is sent for processing, or loaded aboard trains or ships to go further afield.

An interesting problem the old elevators had was that of silo explosions. Fine powder from the millions of grains passing through the facility would accumulate and mix with the oxygen in the air. A spark could spread from one floating grain to the other creating a chain reaction that would destroy the entire structure. (This dispersed-fuel explosion is the mechanism behind fuel-air bombs.) To prevent this, elevators have very rigorous rules against smoking or any other open flame. Many elevators also have various devices installed to maximize ventilation, safeguards against overheating in belt conveyors, legs, bearing, and explosion-proof electrical devices such as electric motors, switches

America is the planet’s single largest producer of wheat, corn, oats and rice, a distinction it claims to this day.¹