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A field trip group from Ravenscroft's class of 2011
Thank you for visiting us at Wake Stone Corporation.
Welcome to our education center. Please tour this site to get a better understanding of
our company and what we do. Crushed stone is the foundation of our nation. This basic
resource is essential for building houses, schools and hospitals. The American crushed
stone industry supplies construction materials critical in building and maintaining
airports, railroads and the world's safest and most efficient highway system. (Pictured
above are Wake Stone employees in the center from left: Seth Miedema, David Lee, Johnny
Bratton, and Jared Miedema with students from Ravenscroft School from the class of
2011.
Imagine the difference in your quality of life without highways, paint,
plastics, medicines, glass, driveways, concrete sidewalks, bridges, wallboard, vinyl,
brick and stone buildings, homes, concrete block, roofing tile, asphalt shingles, minerals
for agriculture all made possible with crushed stone or minerals from crushed
stone. For more interesting facts about our industry, visit our facts
page.
Our tour begins at drilling; however, there are many planning and working stages we
must go through before reaching this point. A few of which are:
- Our company geologist, David Lee, conducts geological surveys to test the availability
of rock.
- We also need to obtain the necessary permits from local, county, state and federal
agencies.
- Removal of the "overburden" (soil) to uncover the rock.
- Building of the primary and secondary plants.
Drilling and Blasting
Drills are used to drill
blast holes in the rock. After these holes have been drilled they are filled with
explosive material which includes ammonium nitrate. The blast fragments the rock into
sizes small enough to load and haul to the primary crusher.
Wake Stone uses modern
explosives and blasting technology to start the first step in producing stone products
with a unique in-house approach which focuses on safety, the environment and efficiency.
Each bore hole is electronically detonated to produce a well controlled blast.
Hauling
After the blast, shovels
and loaders begin there job. Here, a shovel takes this newly broken rock from the
"muck pile" and loads it into pit haul trucks.
After being loaded, the pit trucks transport the rock
along the haul road to the primary plant. These pit trucks can haul 35 to 55 tons in
one trip.
Crushing and Conveying
The rock is dumped into
the primary crusher. Primary crushers are designed to crush large pieces of rock 1 to 4
feet in diameter into pieces approximately 5 to 6 inches in diameter.
Here is a picture
of our entire primary crushing system. Starting from the jaw dump and ending at the surge
pile at the top of the picture. After going through the primary crusher, the rock is
transported by conveyer to a "surge" pile. (pictured at the top)
The surge pile (on the left) is the transition
between the primary and secondary components of the quarry. From the surge pile the rock
is again conveyed through a tunnel from the bottom of the pile to secondary crushing
stations.
At the secondary plant, the rock is recrushed and sized
(sifted) through a series of screens to produce varying sizes of rock products. Most
plants make 5-6 products simultaneously. Larger plants can produce 800,000+ tons of stone
per year and have third and fourth crushing stations.
Stockpiling
After leaving the crushing station, the rock is
conveyed to numerous stockpiles. Each stockpile contains a finished product of
particular size and gradation specification.
Loading and Weighing
The customer's truck is loaded with the finished product
by a wheel loader. The customer proceeds to the scales for weighing.
Ticketing
The customer picks up a scale ticket from the weighmaster and is on the
way to the jobsite. The average length of time the customer is in the plant picking up a
load of crushed stone, weighing and ticketing is 6 minutes! |