SITRANS WB310
Weighing in on the recycling industry:
belt scales for a better process
A teenaged boy tosses an empty plastic
pop bottle into a recycling bin. Although
the boy likely won’t give a second
thought to that bottle, this piece of plastic has a long way to go before becoming
a brand new beverage container.
Recycled materials can also be converted
into new products that can be consumed
again such as paper, plastic, and glass.
The importance of being weighed
Along the way, Siemens weighing technology helps waste services companies
efficiently manage the recycling process.
The indication of weight is integral to
the processing of the recycled material.
Monitoring total throughput is used for
governmental record keeping and plant
optimization.
This process, as well as reusing recycled
material, is advantageous for many
reasons: it reduces the amount of waste
sent to landfills; conserves natural
resources; saves energy; reduces greenhouse gas emissions; and helps create
new jobs.
Siemens has been supplying weighing
equipment for over 50 years. Their portfolio for conveyor belt scales is broad and
can monitor flow rates up to 12,000 tons
(13,228 short tons) per hour.
siemens.com/weighing
The varying product types range from plastic bags to heavy metallic objects. The
conveyor is flat and wide to ensure proper transportation of the recyclables.
A unique application from the recycling industry
Materials are of extreme weight differential – from paper
to metal – and the size of the material can also vary
greatly as the materials are conveyed. For these reasons,
Siemens developed a customized solution specifically for
the recycling industry.
The Siemens SITRANS WB310 features a long weigh deck
and includes a counterbalance to reduce the dead load
of the scale and to ensure that the light materials are
weighed with as much accuracy as the heavier items.
Typically for use with belt widths from 60 to 72 inches
(1.5 to 1.8 meters), SITRANS WB310 uses the same industry-proven triple beam parallelogram load cells as the Siemens Milltronics MSI belt scale. These load cells feature a
300% overload capacity and are extremely sensitive.
The large, robust weigh pan needs to be strong enough to support an engine block, but
also counterbalanced to remove the dead load and measure cardboard.
The Milltronics BW500 integrator from Siemens is a
full-feature controller that is available with Profibus DP,
DeviceNET, Ethernet/IP, Modbus TCP/IP and ProfiNet communication options.
The seven language options allow users to program the
unit in their own native tongue and the integrator’s multiline HMI with parameter indication makes programming
and calibration quick and easy.
This customized and reliable weighing system from
Siemens has ensured that materials being conveyed and
processed in the recycling industry are weighed with
the same attention to detail that goes into blending and
batching applications in the food and chemical industries.
A tailored solution for a specific use that meets the needs
of the user and the application.
The load cells are also IP67 rated for when the equipment is washed down. The Milltronics MSI’s load cells can
weigh a single nickel when in a static state – not bad for
a system that can withstand 1500 pounds (680 kilograms) of weight before the load cells are permanently
damaged!
Siemens AG
Industry Sector
Sensors and Communications
76181 KARLSRUHE
GERMANY
Weighing components make up the perfect system
Subject to change without notice
Available as pdf only
© Siemens AG 2014
All belt scales work on the same principle of load speed
equals rate. SITRANS WB310 is supplied complete with a
speed sensor to provide signals to the integrator, which
provides a rate output. A shaft mounted SITRANS WS300
speed sensor is available in four different resolution
options to ensure the most reliable signal for any conveyor belt speed.
The information provided in this case study contains merely general
descriptions or characteristics of performance which in case of
actual use do not always apply as described or which may change
as a result of further development of the products. An obligation to
provide the respective characteristics shall only exist if expressly
agreed in the terms of the contract.
All product designations may be trademarks or product names of
Siemens AG or supplier companies whose use by third parties for
their own purposes violate the rights of the owners.
siemens.com/weighing