Mobile concrete crusher used for concrete recycling plant

Dec. 19, 2011 - PRLog -- The concrete recycling plant is designed to process building demolition waste such as concrete and brick. After primary crushing the steel, plastic and other contaminants are removed. It is then secondary crushed and screened producing aggregates.

Overproduction can occur during the production of concrete and mortar. If the overproduced material is treated promptly, then the concrete aggregate materials (sand and coarse aggregate) can be recovered.

This is normally undertaken by washing the concrete (or mortar) in a revolving cylinder washer, very similar to a barrel washer. Care is needed in the handling of the water used in the washing process.

Concrete recycling plant
http://www.crushersmill.com/production-line/concrete-recycling.html

Protection of the environment and reduction of costs have to be the primary goals of today's industry. The increasing environmental consciousness, underlined by governmental requirements, along with new economical concepts are the background for a world-wide movement to recycle leftover-concrete. The concrete recycling-plants by Stetter have proven to be dependable, robust and very economical solutions to teh question on how to recycle concrete. And best of all, the plants are designed not only to protect the environment because of recycling concrete, but also during the recycling process itself.

How Concrete is Recycled

Products (aside from base course) are high quality aggregate, processed in steps with time and effort involved in crushing, pre-sizing, sorting, screening and contaminant elimination. The denominator is to start with clean, quality rubble in order to meet design criteria easily and ultimately yield a quality product that will go into end use.

Crushing and screening systems start with primary jaws, cones and/or large impactors taking rubble from 30 inches to 4 feet. A secondary cone or impactor may or may not need to be run, and then primary and secondary screens may or may not be used, depending upon the project, the equipment used and the final product desired. A scalping screen will remove dirt and foreign particles. A fine harp deck screen will remove fine material from coarse aggregate.

Further cleaning is necessary to ensure the recycled concrete product is free of dirt, clay, wood, plastic and organic materials. This is done by water floatation, hand picking, air separators, and electromagnetic separators.

Occasionally asphalt overlay or patch is found. A mixture of asphalt and concrete is not recommended but small patches are not detrimental.

The more care that is put into the quality, the better product you will receive. With sound quality control and screening you can produce material without having to wash it as with virgin aggregate which may be ladened with clay and silt.

Concrete crusher
http://www.crushersmill.com/production-line/mobile-concre...

The term "asphalt recycling plant equipment" covers a wide range of machinery, from recycling equipment added onto a large fixed asphalt production plant, to small mobile pieces of equipment for specific asphalting operations that use recycled aggregates, such as in situ foamed bitumen recycling of road planings.

The equipment used at large asphalt plants (which may also be producing asphalt from primary materials) tends to be focused on treating the feedstock to ensure it is acceptable for adding into the asphalt production. This could be equipment such as crushers and screens, suitably modified to accommodate an asphalt feedstock.

The process-specific small mobile pieces of equipment are normally focused on supporting a single operation, such as hot, cold or foamed bitumen recycling. This equipment is normally transported between sites on a low loader and could be mounted on tracks for movement around site. It could have components such as hoppers for receiving feedstock (asphalt planings and binders), mixing tanks and equipment for laying the product.

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Shanghai Shibang Machinery Co., Ltd is a high-technology enterprise of Shanghai city. It is a professional manufacturer of mining crushers and industrial grinding mills.